// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/render_view.h"
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/lazy_instance.h"
#include "base/metrics/histogram.h"
#include "base/path_service.h"
#include "base/process_util.h"
#include "base/string_piece.h"
#include "base/string_util.h"
#include "base/sys_string_conversions.h"
#include "base/time.h"
#include "base/utf_string_conversions.h"
#include "chrome/common/autofill_messages.h"
#include "chrome/common/bindings_policy.h"
#include "chrome/common/child_process_logging.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/extension_messages.h"
#include "chrome/common/json_value_serializer.h"
#include "chrome/common/pepper_plugin_registry.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/render_view_commands.h"
#include "chrome/common/thumbnail_score.h"
#include "chrome/common/url_constants.h"
#include "chrome/common/web_apps.h"
#include "chrome/renderer/about_handler.h"
#include "chrome/renderer/automation/dom_automation_controller.h"
#include "chrome/renderer/external_host_bindings.h"
#include "chrome/renderer/localized_error.h"
#include "chrome/renderer/page_load_histograms.h"
#include "chrome/renderer/render_process.h"
#include "chrome/renderer/render_thread.h"
#include "chrome/renderer/searchbox.h"
#include "chrome/renderer/spellchecker/spellcheck.h"
#include "chrome/renderer/spellchecker/spellcheck_provider.h"
#include "chrome/renderer/translate_helper.h"
#include "chrome/renderer/visitedlink_slave.h"
#include "content/common/appcache/appcache_dispatcher.h"
#include "content/common/clipboard_messages.h"
#include "content/common/content_constants.h"
#include "content/common/database_messages.h"
#include "content/common/drag_messages.h"
#include "content/common/file_system/file_system_dispatcher.h"
#include "content/common/file_system/webfilesystem_callback_dispatcher.h"
#include "content/common/notification_service.h"
#include "content/common/pepper_messages.h"
#include "content/common/renderer_preferences.h"
#include "content/common/view_messages.h"
#include "content/renderer/audio_message_filter.h"
#include "content/renderer/content_renderer_client.h"
#include "content/renderer/device_orientation_dispatcher.h"
#include "content/renderer/external_popup_menu.h"
#include "content/renderer/geolocation_dispatcher.h"
#include "content/renderer/load_progress_tracker.h"
#include "content/renderer/media/audio_renderer_impl.h"
#include "content/renderer/media/ipc_video_decoder.h"
#include "content/renderer/navigation_state.h"
#include "content/renderer/notification_provider.h"
#include "content/renderer/p2p/socket_dispatcher.h"
#include "content/renderer/plugin_channel_host.h"
#include "content/renderer/render_view_observer.h"
#include "content/renderer/render_view_visitor.h"
#include "content/renderer/render_widget_fullscreen.h"
#include "content/renderer/render_widget_fullscreen_pepper.h"
#include "content/renderer/renderer_webapplicationcachehost_impl.h"
#include "content/renderer/renderer_webstoragenamespace_impl.h"
#include "content/renderer/speech_input_dispatcher.h"
#include "content/renderer/web_ui_bindings.h"
#include "content/renderer/webgraphicscontext3d_command_buffer_impl.h"
#include "content/renderer/webplugin_delegate_proxy.h"
#include "content/renderer/websharedworker_proxy.h"
#include "content/renderer/webworker_proxy.h"
#include "media/base/filter_collection.h"
#include "media/base/media_switches.h"
#include "media/base/message_loop_factory_impl.h"
#include "net/base/data_url.h"
#include "net/base/escape.h"
#include "net/base/net_errors.h"
#include "net/http/http_util.h"
#include "ppapi/c/private/ppb_flash_net_connector.h"
#include "skia/ext/bitmap_platform_device.h"
#include "skia/ext/image_operations.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityCache.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebAccessibilityObject.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDataSource.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileChooserParams.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileSystemCallbacks.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFindOptions.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFormControlElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFormElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebGraphicsContext3D.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebHistoryItem.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebImage.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayerAction.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNetworkStateNotifier.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebNodeList.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPageSerializer.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginContainer.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginDocument.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginParams.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPoint.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebRange.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebScriptSource.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSearchableFormData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSettings.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebStorageNamespace.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURL.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLError.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLRequest.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLResponse.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebWindowFeatures.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/base/message_box_flags.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/favicon_size.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/point.h"
#include "ui/gfx/rect.h"
#include "ui/gfx/skbitmap_operations.h"
#include "v8/include/v8-testing.h"
#include "v8/include/v8.h"
#include "webkit/appcache/web_application_cache_host_impl.h"
#include "webkit/glue/alt_error_page_resource_fetcher.h"
#include "webkit/glue/context_menu.h"
#include "webkit/glue/dom_operations.h"
#include "webkit/glue/form_data.h"
#include "webkit/glue/form_field.h"
#include "webkit/glue/glue_serialize.h"
#include "webkit/glue/image_decoder.h"
#include "webkit/glue/image_resource_fetcher.h"
#include "webkit/glue/media/video_renderer_impl.h"
#include "webkit/glue/password_form_dom_manager.h"
#include "webkit/glue/resource_fetcher.h"
#include "webkit/glue/site_isolation_metrics.h"
#include "webkit/glue/webaccessibility.h"
#include "webkit/glue/webdropdata.h"
#include "webkit/glue/webkit_constants.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/webmediaplayer_impl.h"
#include "webkit/plugins/npapi/default_plugin_shared.h"
#include "webkit/plugins/npapi/plugin_list.h"
#include "webkit/plugins/npapi/webplugin_delegate.h"
#include "webkit/plugins/npapi/webplugin_delegate_impl.h"
#include "webkit/plugins/npapi/webplugin_impl.h"
#include "webkit/plugins/npapi/webview_plugin.h"
#include "webkit/plugins/ppapi/ppapi_webplugin_impl.h"
#if defined(OS_WIN)
// TODO(port): these files are currently Windows only because they concern:
// * theming
#include "ui/gfx/native_theme_win.h"
#elif defined(USE_X11)
#include "third_party/WebKit/Source/WebKit/chromium/public/linux/WebRenderTheme.h"
#include "ui/gfx/native_theme_linux.h"
#elif defined(OS_MACOSX)
#include "skia/ext/skia_utils_mac.h"
#endif
using WebKit::WebAccessibilityCache;
using WebKit::WebAccessibilityNotification;
using WebKit::WebAccessibilityObject;
using WebKit::WebApplicationCacheHost;
using WebKit::WebApplicationCacheHostClient;
using WebKit::WebCString;
using WebKit::WebColor;
using WebKit::WebColorName;
using WebKit::WebConsoleMessage;
using WebKit::WebContextMenuData;
using WebKit::WebCookieJar;
using WebKit::WebData;
using WebKit::WebDataSource;
using WebKit::WebDocument;
using WebKit::WebDragData;
using WebKit::WebDragOperation;
using WebKit::WebDragOperationsMask;
using WebKit::WebEditingAction;
using WebKit::WebElement;
using WebKit::WebExternalPopupMenu;
using WebKit::WebExternalPopupMenuClient;
using WebKit::WebFileChooserCompletion;
using WebKit::WebFileSystem;
using WebKit::WebFileSystemCallbacks;
using WebKit::WebFindOptions;
using WebKit::WebFormControlElement;
using WebKit::WebFormElement;
using WebKit::WebFrame;
using WebKit::WebHistoryItem;
using WebKit::WebImage;
using WebKit::WebInputElement;
using WebKit::WebMediaPlayer;
using WebKit::WebMediaPlayerAction;
using WebKit::WebMediaPlayerClient;
using WebKit::WebNavigationPolicy;
using WebKit::WebNavigationType;
using WebKit::WebNetworkStateNotifier;
using WebKit::WebNode;
using WebKit::WebPageSerializer;
using WebKit::WebPageSerializerClient;
using WebKit::WebPlugin;
using WebKit::WebPluginContainer;
using WebKit::WebPluginDocument;
using WebKit::WebPluginParams;
using WebKit::WebPoint;
using WebKit::WebPopupMenuInfo;
using WebKit::WebRange;
using WebKit::WebRect;
using WebKit::WebScriptSource;
using WebKit::WebSearchableFormData;
using WebKit::WebSecurityOrigin;
using WebKit::WebSettings;
using WebKit::WebSharedWorker;
using WebKit::WebSize;
using WebKit::WebStorageNamespace;
using WebKit::WebString;
using WebKit::WebTextAffinity;
using WebKit::WebTextDirection;
using WebKit::WebURL;
using WebKit::WebURLError;
using WebKit::WebURLRequest;
using WebKit::WebURLResponse;
using WebKit::WebVector;
using WebKit::WebView;
using WebKit::WebWidget;
using WebKit::WebWindowFeatures;
using WebKit::WebWorker;
using WebKit::WebWorkerClient;
using appcache::WebApplicationCacheHostImpl;
using base::Time;
using base::TimeDelta;
using webkit_glue::AltErrorPageResourceFetcher;
using webkit_glue::FormField;
using webkit_glue::ImageResourceFetcher;
using webkit_glue::PasswordForm;
using webkit_glue::PasswordFormDomManager;
using webkit_glue::ResourceFetcher;
using webkit_glue::SiteIsolationMetrics;
using webkit_glue::WebAccessibility;
//-----------------------------------------------------------------------------
typedef std::map<WebKit::WebView*, RenderView*> ViewMap;
static base::LazyInstance<ViewMap> g_view_map(base::LINKER_INITIALIZED);
// define to write the time necessary for thumbnail/DOM text retrieval,
// respectively, into the system debug log
// #define TIME_TEXT_RETRIEVAL
// maximum number of characters in the document to index, any text beyond this
// point will be clipped
static const size_t kMaxIndexChars = 65535;
// Size of the thumbnails that we'll generate
static const int kThumbnailWidth = 212;
static const int kThumbnailHeight = 132;
// Delay in milliseconds that we'll wait before capturing the page contents
// and thumbnail.
static const int kDelayForCaptureMs = 500;
// Typically, we capture the page data once the page is loaded.
// Sometimes, the page never finishes to load, preventing the page capture
// To workaround this problem, we always perform a capture after the following
// delay.
static const int kDelayForForcedCaptureMs = 6000;
// Time, in seconds, we delay before sending content state changes (such as form
// state and scroll position) to the browser. We delay sending changes to avoid
// spamming the browser.
// To avoid having tab/session restore require sending a message to get the
// current content state during tab closing we use a shorter timeout for the
// foreground renderer. This means there is a small window of time from which
// content state is modified and not sent to session restore, but this is
// better than having to wake up all renderers during shutdown.
static const int kDelaySecondsForContentStateSyncHidden = 5;
static const int kDelaySecondsForContentStateSync = 1;
// The maximum number of popups that can be spawned from one page.
static const int kMaximumNumberOfUnacknowledgedPopups = 25;
static const char kBackForwardNavigationScheme[] = "history";
static void GetRedirectChain(WebDataSource* ds, std::vector<GURL>* result) {
WebVector<WebURL> urls;
ds->redirectChain(urls);
result->reserve(urls.size());
for (size_t i = 0; i < urls.size(); ++i)
result->push_back(urls[i]);
}
static bool PaintViewIntoCanvas(WebView* view,
skia::PlatformCanvas& canvas) {
view->layout();
const WebSize& size = view->size();
if (!canvas.initialize(size.width, size.height, true))
return false;
view->paint(webkit_glue::ToWebCanvas(&canvas),
WebRect(0, 0, size.width, size.height));
// TODO: Add a way to snapshot the whole page, not just the currently
// visible part.
return true;
}
// Calculates how "boring" a thumbnail is. The boring score is the
// 0,1 ranged percentage of pixels that are the most common
// luma. Higher boring scores indicate that a higher percentage of a
// bitmap are all the same brightness.
static double CalculateBoringScore(SkBitmap* bitmap) {
int histogram[256] = {0};
color_utils::BuildLumaHistogram(bitmap, histogram);
int color_count = *std::max_element(histogram, histogram + 256);
int pixel_count = bitmap->width() * bitmap->height();
return static_cast<double>(color_count) / pixel_count;
}
// True if |frame| contains content that is white-listed for content settings.
static bool IsWhitelistedForContentSettings(WebFrame* frame) {
WebSecurityOrigin origin = frame->securityOrigin();
if (origin.isEmpty())
return false; // Uninitialized document?
if (EqualsASCII(origin.protocol(), chrome::kChromeUIScheme))
return true; // Browser UI elements should still work.
// If the scheme is ftp: or file:, an empty file name indicates a directory
// listing, which requires JavaScript to function properly.
GURL frame_url = frame->url();
const char* kDirProtocols[] = { "ftp", "file" };
for (size_t i = 0; i < arraysize(kDirProtocols); ++i) {
if (EqualsASCII(origin.protocol(), kDirProtocols[i])) {
return frame_url.SchemeIs(kDirProtocols[i]) &&
frame_url.ExtractFileName().empty();
}
}
return false;
}
// Returns true if the parameter node is a textfield, text area or a content
// editable div.
static bool IsEditableNode(const WebNode& node) {
bool is_editable_node = false;
if (!node.isNull()) {
if (node.isContentEditable()) {
is_editable_node = true;
} else if (node.isElementNode()) {
is_editable_node =
node.toConst<WebElement>().isTextFormControlElement();
}
}
return is_editable_node;
}
static bool WebAccessibilityNotificationToViewHostMsg(
WebAccessibilityNotification notification,
ViewHostMsg_AccessibilityNotification_Type::Value* type) {
switch (notification) {
case WebKit::WebAccessibilityNotificationCheckedStateChanged:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_CHECK_STATE_CHANGED;
break;
case WebKit::WebAccessibilityNotificationChildrenChanged:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_CHILDREN_CHANGED;
break;
case WebKit::WebAccessibilityNotificationFocusedUIElementChanged:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_FOCUS_CHANGED;
break;
case WebKit::WebAccessibilityNotificationLoadComplete:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_LOAD_COMPLETE;
break;
case WebKit::WebAccessibilityNotificationValueChanged:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_VALUE_CHANGED;
break;
case WebKit::WebAccessibilityNotificationSelectedTextChanged:
*type = ViewHostMsg_AccessibilityNotification_Type::
NOTIFICATION_TYPE_SELECTED_TEXT_CHANGED;
break;
default:
// TODO(ctguil): Support additional webkit notifications.
return false;
}
return true;
}
// Conversion for the incoming value. The map isn't perfect; v8 has Uint32,
// and int64 which don't fit as Value::TYPE_INTEGER, so we let them fall into
// being TYPE_DOUBLEs. Dates are converted to a string (which can then be
// parsed into a base::Time), as are regexps. Arrays are converted into lists,
// recursively. We don't deal with binary objects or functions - they become
// null values.
static Value* ConvertV8Value(const v8::Handle<v8::Value>& v8value) {
if (v8value->IsBoolean()) {
return Value::CreateBooleanValue(v8value->BooleanValue());
} else if (v8value->IsInt32()) {
return Value::CreateIntegerValue(v8value->Int32Value());
} else if (v8value->IsNumber()) {
return Value::CreateDoubleValue(v8value->NumberValue());
} else if (v8value->IsString()) {
return Value::CreateStringValue(*v8::String::Utf8Value(v8value));
} else if (v8value->IsDate()) {
v8::Date* date = v8::Date::Cast(*v8value);
return Value::CreateDoubleValue(date->NumberValue() / 1000.0);
} else if (v8value->IsRegExp()) {
return Value::CreateStringValue(
*v8::String::Utf8Value(v8value->ToString()));
} else if (v8value->IsArray()) {
v8::Array* array = v8::Array::Cast(*v8value);
uint32_t length = array->Length();
scoped_ptr<ListValue> list(new ListValue);
for (uint32_t i = 0 ; i < length ; ++i) {
list->Set(i, ConvertV8Value(array->Get(i)));
}
return list.release();
}
return Value::CreateNullValue();
}
///////////////////////////////////////////////////////////////////////////////
int32 RenderView::next_page_id_ = 1;
struct RenderView::PendingFileChooser {
PendingFileChooser(const ViewHostMsg_RunFileChooser_Params& p,
WebFileChooserCompletion* c)
: params(p),
completion(c) {
}
ViewHostMsg_RunFileChooser_Params params;
WebFileChooserCompletion* completion; // MAY BE NULL to skip callback.
};
RenderView::RenderView(RenderThreadBase* render_thread,
gfx::NativeViewId parent_hwnd,
int32 opener_id,
const RendererPreferences& renderer_prefs,
const WebPreferences& webkit_prefs,
SharedRenderViewCounter* counter,
int32 routing_id,
int64 session_storage_namespace_id,
const string16& frame_name)
: RenderWidget(render_thread, WebKit::WebPopupTypeNone),
webkit_preferences_(webkit_prefs),
send_content_state_immediately_(false),
enabled_bindings_(0),
send_preferred_size_changes_(false),
script_can_close_(true),
is_loading_(false),
navigation_gesture_(NavigationGestureUnknown),
opened_by_user_gesture_(true),
opener_suppressed_(false),
is_prerendering_(false),
page_id_(-1),
last_page_id_sent_to_browser_(-1),
last_indexed_page_id_(-1),
history_list_offset_(-1),
history_list_length_(0),
has_unload_listener_(false),
target_url_status_(TARGET_NONE),
view_type_(ViewType::INVALID),
browser_window_id_(-1),
ALLOW_THIS_IN_INITIALIZER_LIST(pepper_delegate_(this)),
ALLOW_THIS_IN_INITIALIZER_LIST(page_info_method_factory_(this)),
ALLOW_THIS_IN_INITIALIZER_LIST(accessibility_method_factory_(this)),
ALLOW_THIS_IN_INITIALIZER_LIST(cookie_jar_(this)),
geolocation_dispatcher_(NULL),
speech_input_dispatcher_(NULL),
device_orientation_dispatcher_(NULL),
spellcheck_provider_(NULL),
accessibility_ack_pending_(false),
p2p_socket_dispatcher_(NULL),
pending_app_icon_requests_(0),
session_storage_namespace_id_(session_storage_namespace_id) {
ClearBlockedContentSettings();
routing_id_ = routing_id;
if (opener_id != MSG_ROUTING_NONE)
opener_id_ = opener_id;
webwidget_ = WebView::create(this);
if (counter) {
shared_popup_counter_ = counter;
shared_popup_counter_->data++;
decrement_shared_popup_at_destruction_ = true;
} else {
shared_popup_counter_ = new SharedRenderViewCounter(0);
decrement_shared_popup_at_destruction_ = false;
}
notification_provider_ = new NotificationProvider(this);
g_view_map.Get().insert(std::make_pair(webview(), this));
webkit_preferences_.Apply(webview());
webview()->initializeMainFrame(this);
if (!frame_name.empty())
webview()->mainFrame()->setName(frame_name);
webview()->settings()->setMinimumTimerInterval(
is_hidden() ? webkit_glue::kBackgroundTabTimerInterval :
webkit_glue::kForegroundTabTimerInterval);
OnSetRendererPrefs(renderer_prefs);
render_thread_->AddRoute(routing_id_, this);
// Take a reference on behalf of the RenderThread. This will be balanced
// when we receive ViewMsg_Close.
AddRef();
// If this is a popup, we must wait for the CreatingNew_ACK message before
// completing initialization. Otherwise, we can finish it now.
if (opener_id == MSG_ROUTING_NONE) {
did_show_ = true;
CompleteInit(parent_hwnd);
}
host_window_ = parent_hwnd;
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kDomAutomationController))
enabled_bindings_ |= BindingsPolicy::DOM_AUTOMATION;
if (command_line.HasSwitch(switches::kEnableAccessibility))
WebAccessibilityCache::enableAccessibility();
audio_message_filter_ = new AudioMessageFilter(routing_id_);
render_thread_->AddFilter(audio_message_filter_);
RenderThread* current_thread = RenderThread::current();
SpellCheck* spellcheck = current_thread ? current_thread->spellchecker() : 0;
spellcheck_provider_ = new SpellCheckProvider(this, spellcheck);
webview()->setSpellCheckClient(spellcheck_provider_);
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableP2PApi)) {
p2p_socket_dispatcher_ = new P2PSocketDispatcher(this);
}
content::GetContentClient()->renderer()->RenderViewCreated(this);
}
RenderView::~RenderView() {
if (decrement_shared_popup_at_destruction_)
shared_popup_counter_->data--;
// If file chooser is still waiting for answer, dispatch empty answer.
while (!file_chooser_completions_.empty()) {
if (file_chooser_completions_.front()->completion) {
file_chooser_completions_.front()->completion->didChooseFile(
WebVector<WebString>());
}
file_chooser_completions_.pop_front();
}
#if defined(OS_MACOSX)
// Destroy all fake plugin window handles on the browser side.
while (!fake_plugin_window_handles_.empty()) {
// Make sure no NULL plugin window handles were inserted into this list.
DCHECK(*fake_plugin_window_handles_.begin());
// DestroyFakePluginWindowHandle modifies fake_plugin_window_handles_.
DestroyFakePluginWindowHandle(*fake_plugin_window_handles_.begin());
}
#endif
render_thread_->RemoveFilter(audio_message_filter_);
#ifndef NDEBUG
// Make sure we are no longer referenced by the ViewMap.
ViewMap* views = g_view_map.Pointer();
for (ViewMap::iterator it = views->begin(); it != views->end(); ++it)
DCHECK_NE(this, it->second) << "Failed to call Close?";
#endif
FOR_EACH_OBSERVER(RenderViewObserver, observers_, set_render_view(NULL));
FOR_EACH_OBSERVER(RenderViewObserver, observers_, OnDestruct());
}
/*static*/
void RenderView::ForEach(RenderViewVisitor* visitor) {
ViewMap* views = g_view_map.Pointer();
for (ViewMap::iterator it = views->begin(); it != views->end(); ++it) {
if (!visitor->Visit(it->second))
return;
}
}
/*static*/
RenderView* RenderView::FromWebView(WebView* webview) {
ViewMap* views = g_view_map.Pointer();
ViewMap::iterator it = views->find(webview);
return it == views->end() ? NULL : it->second;
}
/*static*/
RenderView* RenderView::Create(
RenderThreadBase* render_thread,
gfx::NativeViewId parent_hwnd,
int32 opener_id,
const RendererPreferences& renderer_prefs,
const WebPreferences& webkit_prefs,
SharedRenderViewCounter* counter,
int32 routing_id,
int64 session_storage_namespace_id,
const string16& frame_name) {
DCHECK(routing_id != MSG_ROUTING_NONE);
return new RenderView(
render_thread,
parent_hwnd,
opener_id,
renderer_prefs,
webkit_prefs,
counter,
routing_id,
session_storage_namespace_id,
frame_name); // adds reference
}
// static
void RenderView::SetNextPageID(int32 next_page_id) {
// This method should only be called during process startup, and the given
// page id had better not exceed our current next page id!
DCHECK_EQ(next_page_id_, 1);
DCHECK(next_page_id >= next_page_id_);
next_page_id_ = next_page_id;
}
void RenderView::AddObserver(RenderViewObserver* observer) {
observers_.AddObserver(observer);
}
void RenderView::RemoveObserver(RenderViewObserver* observer) {
observer->set_render_view(NULL);
observers_.RemoveObserver(observer);
}
bool RenderView::RendererAccessibilityNotification::ShouldIncludeChildren() {
typedef ViewHostMsg_AccessibilityNotification_Params params;
if (type == WebKit::WebAccessibilityNotificationChildrenChanged ||
type == WebKit::WebAccessibilityNotificationLoadComplete) {
return true;
}
return false;
}
WebKit::WebView* RenderView::webview() const {
return static_cast<WebKit::WebView*>(webwidget());
}
void RenderView::UserMetricsRecordAction(const std::string& action) {
Send(new ViewHostMsg_UserMetricsRecordAction(action));
}
bool RenderView::InstallWebApplicationUsingDefinitionFile(WebFrame* frame,
string16* error) {
// There is an issue of drive-by installs with the below implementation. A web
// site could force a user to install an app by timing the dialog to come up
// just before the user clicks.
//
// We do show a success UI that allows users to uninstall, but it seems that
// we might still want to put up an infobar before showing the install dialog.
//
// TODO(aa): Figure out this issue before removing the kEnableCrxlessWebApps
// switch.
if (!CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableCrxlessWebApps)) {
*error = ASCIIToUTF16("CRX-less web apps aren't enabled.");
return false;
}
if (frame != frame->top()) {
*error = ASCIIToUTF16("Applications can only be installed from the top "
"frame.");
return false;
}
if (pending_app_info_.get()) {
*error = ASCIIToUTF16("An application install is already in progress.");
return false;
}
pending_app_info_.reset(new WebApplicationInfo());
if (!web_apps::ParseWebAppFromWebDocument(frame, pending_app_info_.get(),
error)) {
return false;
}
if (!pending_app_info_->manifest_url.is_valid()) {
*error = ASCIIToUTF16("Web application definition not found or invalid.");
return false;
}
app_definition_fetcher_.reset(new ResourceFetcher(
pending_app_info_->manifest_url, webview()->mainFrame(),
NewCallback(this, &RenderView::DidDownloadApplicationDefinition)));
return true;
}
void RenderView::SetReportLoadProgressEnabled(bool enabled) {
if (!enabled) {
load_progress_tracker_.reset(NULL);
return;
}
if (load_progress_tracker_ == NULL)
load_progress_tracker_.reset(new LoadProgressTracker(this));
}
void RenderView::DidDownloadApplicationDefinition(
const WebKit::WebURLResponse& response,
const std::string& data) {
scoped_ptr<WebApplicationInfo> app_info(
pending_app_info_.release());
JSONStringValueSerializer serializer(data);
int error_code = 0;
std::string error_message;
scoped_ptr<Value> result(serializer.Deserialize(&error_code, &error_message));
if (!result.get()) {
AddErrorToRootConsole(UTF8ToUTF16(error_message));
return;
}
string16 error_message_16;
if (!web_apps::ParseWebAppFromDefinitionFile(result.get(), app_info.get(),
&error_message_16)) {
AddErrorToRootConsole(error_message_16);
return;
}
if (!app_info->icons.empty()) {
pending_app_info_.reset(app_info.release());
pending_app_icon_requests_ =
static_cast<int>(pending_app_info_->icons.size());
for (size_t i = 0; i < pending_app_info_->icons.size(); ++i) {
app_icon_fetchers_.push_back(linked_ptr<ImageResourceFetcher>(
new ImageResourceFetcher(
pending_app_info_->icons[i].url,
webview()->mainFrame(),
static_cast<int>(i),
pending_app_info_->icons[i].width,
NewCallback(this, &RenderView::DidDownloadApplicationIcon))));
}
} else {
Send(new ExtensionHostMsg_InstallApplication(routing_id_, *app_info));
}
}
void RenderView::DidDownloadApplicationIcon(ImageResourceFetcher* fetcher,
const SkBitmap& image) {
pending_app_info_->icons[fetcher->id()].data = image;
// Remove the image fetcher from our pending list. We're in the callback from
// ImageResourceFetcher, best to delay deletion.
for (ImageResourceFetcherList::iterator iter = app_icon_fetchers_.begin();
iter != app_icon_fetchers_.end(); ++iter) {
if (iter->get() == fetcher) {
iter->release();
app_icon_fetchers_.erase(iter);
break;
}
}
// We're in the callback from the ImageResourceFetcher, best to delay
// deletion.
MessageLoop::current()->DeleteSoon(FROM_HERE, fetcher);
if (--pending_app_icon_requests_ > 0)
return;
// There is a maximum size of IPC on OS X and Linux that we have run into in
// some situations. We're not sure what it is, but our hypothesis is in the
// neighborhood of 1 MB.
//
// To be on the safe side, we give ourselves 128 KB for just the image data.
// This should be more than enough for 128, 48, and 16 px 32-bit icons. If we
// want to start allowing larger icons (see bug 63406), we'll have to either
// experiment mor ewith this and find the real limit, or else come up with
// some alternative way to transmit the icon data to the browser process.
//
// See also: bug 63729.
const size_t kMaxIconSize = 1024 * 128;
size_t actual_icon_size = 0;
for (size_t i = 0; i < pending_app_info_->icons.size(); ++i) {
size_t current_size = pending_app_info_->icons[i].data.getSize();
if (current_size > kMaxIconSize - actual_icon_size) {
AddErrorToRootConsole(ASCIIToUTF16(
"Icons are too large. Maximum total size for app icons is 128 KB."));
return;
}
actual_icon_size += current_size;
}
Send(new ExtensionHostMsg_InstallApplication(
routing_id_, *pending_app_info_));
pending_app_info_.reset(NULL);
}
void RenderView::PluginCrashed(const FilePath& plugin_path) {
Send(new ViewHostMsg_CrashedPlugin(routing_id_, plugin_path));
}
WebPlugin* RenderView::CreatePluginNoCheck(WebFrame* frame,
const WebPluginParams& params) {
webkit::npapi::WebPluginInfo info;
bool found;
int content_setting;
std::string mime_type;
Send(new ViewHostMsg_GetPluginInfo(
routing_id_, params.url, frame->top()->url(), params.mimeType.utf8(),
&found, &info, &content_setting, &mime_type));
if (!found || !webkit::npapi::IsPluginEnabled(info))
return NULL;
bool pepper_plugin_was_registered = false;
scoped_refptr<webkit::ppapi::PluginModule> pepper_module(
pepper_delegate_.CreatePepperPlugin(info.path,
&pepper_plugin_was_registered));
if (pepper_plugin_was_registered) {
if (pepper_module)
return CreatePepperPlugin(frame, params, info.path, pepper_module.get());
return NULL;
}
return CreateNPAPIPlugin(frame, params, info.path, mime_type);
}
void RenderView::RegisterPluginDelegate(WebPluginDelegateProxy* delegate) {
plugin_delegates_.insert(delegate);
// If the renderer is visible, set initial visibility and focus state.
if (!is_hidden()) {
#if defined(OS_MACOSX)
delegate->SetContainerVisibility(true);
if (webview() && webview()->isActive())
delegate->SetWindowFocus(true);
#endif
}
// Plugins start assuming the content has focus (so that they work in
// environments where RenderView isn't hosting them), so we always have to
// set the initial state. See webplugin_delegate_impl.h for details.
delegate->SetContentAreaFocus(has_focus());
}
void RenderView::UnregisterPluginDelegate(WebPluginDelegateProxy* delegate) {
plugin_delegates_.erase(delegate);
}
bool RenderView::OnMessageReceived(const IPC::Message& message) {
WebFrame* main_frame = webview() ? webview()->mainFrame() : NULL;
if (main_frame)
child_process_logging::SetActiveURL(main_frame->url());
ObserverListBase<RenderViewObserver>::Iterator it(observers_);
RenderViewObserver* observer;
while ((observer = it.GetNext()) != NULL)
if (observer->OnMessageReceived(message))
return true;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(RenderView, message)
IPC_MESSAGE_HANDLER(ViewMsg_CaptureSnapshot, OnCaptureSnapshot)
IPC_MESSAGE_HANDLER(ViewMsg_Navigate, OnNavigate)
IPC_MESSAGE_HANDLER(ViewMsg_Stop, OnStop)
IPC_MESSAGE_HANDLER(ViewMsg_ReloadFrame, OnReloadFrame)
IPC_MESSAGE_HANDLER(ViewMsg_Undo, OnUndo)
IPC_MESSAGE_HANDLER(ViewMsg_Redo, OnRedo)
IPC_MESSAGE_HANDLER(ViewMsg_Cut, OnCut)
IPC_MESSAGE_HANDLER(ViewMsg_Copy, OnCopy)
#if defined(OS_MACOSX)
IPC_MESSAGE_HANDLER(ViewMsg_CopyToFindPboard, OnCopyToFindPboard)
#endif
IPC_MESSAGE_HANDLER(ViewMsg_Paste, OnPaste)
IPC_MESSAGE_HANDLER(ViewMsg_Replace, OnReplace)
IPC_MESSAGE_HANDLER(ViewMsg_Delete, OnDelete)
IPC_MESSAGE_HANDLER(ViewMsg_SelectAll, OnSelectAll)
IPC_MESSAGE_HANDLER(ViewMsg_CopyImageAt, OnCopyImageAt)
IPC_MESSAGE_HANDLER(ViewMsg_ExecuteEditCommand, OnExecuteEditCommand)
IPC_MESSAGE_HANDLER(ViewMsg_Find, OnFind)
IPC_MESSAGE_HANDLER(ViewMsg_StopFinding, OnStopFinding)
IPC_MESSAGE_HANDLER(ViewMsg_FindReplyACK, OnFindReplyAck)
IPC_MESSAGE_HANDLER(ViewMsg_Zoom, OnZoom)
IPC_MESSAGE_HANDLER(ViewMsg_SetContentSettingsForLoadingURL,
OnSetContentSettingsForLoadingURL)
IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevel, OnSetZoomLevel)
IPC_MESSAGE_HANDLER(ViewMsg_SetZoomLevelForLoadingURL,
OnSetZoomLevelForLoadingURL)
IPC_MESSAGE_HANDLER(ViewMsg_SetPageEncoding, OnSetPageEncoding)
IPC_MESSAGE_HANDLER(ViewMsg_ResetPageEncodingToDefault,
OnResetPageEncodingToDefault)
IPC_MESSAGE_HANDLER(ViewMsg_DownloadFavicon, OnDownloadFavicon)
IPC_MESSAGE_HANDLER(ViewMsg_ScriptEvalRequest, OnScriptEvalRequest)
IPC_MESSAGE_HANDLER(ViewMsg_CSSInsertRequest, OnCSSInsertRequest)
IPC_MESSAGE_HANDLER(ViewMsg_ReservePageIDRange, OnReservePageIDRange)
IPC_MESSAGE_HANDLER(DragMsg_TargetDragEnter, OnDragTargetDragEnter)
IPC_MESSAGE_HANDLER(DragMsg_TargetDragOver, OnDragTargetDragOver)
IPC_MESSAGE_HANDLER(DragMsg_TargetDragLeave, OnDragTargetDragLeave)
IPC_MESSAGE_HANDLER(DragMsg_TargetDrop, OnDragTargetDrop)
IPC_MESSAGE_HANDLER(DragMsg_SourceEndedOrMoved, OnDragSourceEndedOrMoved)
IPC_MESSAGE_HANDLER(DragMsg_SourceSystemDragEnded,
OnDragSourceSystemDragEnded)
IPC_MESSAGE_HANDLER(ViewMsg_AllowBindings, OnAllowBindings)
IPC_MESSAGE_HANDLER(ViewMsg_SetWebUIProperty, OnSetWebUIProperty)
IPC_MESSAGE_HANDLER(ViewMsg_SetInitialFocus, OnSetInitialFocus)
IPC_MESSAGE_HANDLER(ViewMsg_ScrollFocusedEditableNodeIntoView,
OnScrollFocusedEditableNodeIntoView)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateTargetURL_ACK, OnUpdateTargetURLAck)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateWebPreferences, OnUpdateWebPreferences)
IPC_MESSAGE_HANDLER(ViewMsg_SetAltErrorPageURL, OnSetAltErrorPageURL)
IPC_MESSAGE_HANDLER(ViewMsg_InstallMissingPlugin, OnInstallMissingPlugin)
IPC_MESSAGE_HANDLER(ViewMsg_DisplayPrerenderedPage,
OnDisplayPrerenderedPage)
IPC_MESSAGE_HANDLER(ViewMsg_RunFileChooserResponse, OnFileChooserResponse)
IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
IPC_MESSAGE_HANDLER(ViewMsg_GetAllSavableResourceLinksForCurrentPage,
OnGetAllSavableResourceLinksForCurrentPage)
IPC_MESSAGE_HANDLER(
ViewMsg_GetSerializedHtmlDataForCurrentPageWithLocalLinks,
OnGetSerializedHtmlDataForCurrentPageWithLocalLinks)
IPC_MESSAGE_HANDLER(ExtensionMsg_GetApplicationInfo, OnGetApplicationInfo)
IPC_MESSAGE_HANDLER(ViewMsg_ShouldClose, OnShouldClose)
IPC_MESSAGE_HANDLER(ViewMsg_ClosePage, OnClosePage)
IPC_MESSAGE_HANDLER(ViewMsg_ThemeChanged, OnThemeChanged)
IPC_MESSAGE_HANDLER(ViewMsg_HandleMessageFromExternalHost,
OnHandleMessageFromExternalHost)
IPC_MESSAGE_HANDLER(ViewMsg_DisassociateFromPopupCount,
OnDisassociateFromPopupCount)
IPC_MESSAGE_HANDLER(ViewMsg_AllowScriptToClose,
OnAllowScriptToClose)
IPC_MESSAGE_HANDLER(ViewMsg_MoveOrResizeStarted, OnMoveOrResizeStarted)
IPC_MESSAGE_HANDLER(ViewMsg_ClearFocusedNode, OnClearFocusedNode)
IPC_MESSAGE_HANDLER(ViewMsg_SetBackground, OnSetBackground)
IPC_MESSAGE_HANDLER(ViewMsg_EnablePreferredSizeChangedMode,
OnEnablePreferredSizeChangedMode)
IPC_MESSAGE_HANDLER(ViewMsg_DisableScrollbarsForSmallWindows,
OnDisableScrollbarsForSmallWindows)
IPC_MESSAGE_HANDLER(ViewMsg_SetRendererPrefs, OnSetRendererPrefs)
IPC_MESSAGE_HANDLER(ViewMsg_UpdateBrowserWindowId,
OnUpdateBrowserWindowId)
IPC_MESSAGE_HANDLER(ViewMsg_NotifyRenderViewType,
OnNotifyRendererViewType)
IPC_MESSAGE_HANDLER(ViewMsg_MediaPlayerActionAt, OnMediaPlayerActionAt)
IPC_MESSAGE_HANDLER(ViewMsg_SetActive, OnSetActive)
#if defined(OS_MACOSX)
IPC_MESSAGE_HANDLER(ViewMsg_SetWindowVisibility, OnSetWindowVisibility)
IPC_MESSAGE_HANDLER(ViewMsg_WindowFrameChanged, OnWindowFrameChanged)
IPC_MESSAGE_HANDLER(ViewMsg_PluginImeCompositionCompleted,
OnPluginImeCompositionCompleted)
#endif
IPC_MESSAGE_HANDLER(ViewMsg_SetEditCommandsForNextKeyEvent,
OnSetEditCommandsForNextKeyEvent)
IPC_MESSAGE_HANDLER(ViewMsg_CustomContextMenuAction,
OnCustomContextMenuAction)
IPC_MESSAGE_HANDLER(ViewMsg_EnableAccessibility, OnEnableAccessibility)
IPC_MESSAGE_HANDLER(ViewMsg_SetAccessibilityFocus, OnSetAccessibilityFocus)
IPC_MESSAGE_HANDLER(ViewMsg_AccessibilityDoDefaultAction,
OnAccessibilityDoDefaultAction)
IPC_MESSAGE_HANDLER(ViewMsg_AccessibilityNotifications_ACK,
OnAccessibilityNotificationsAck)
IPC_MESSAGE_HANDLER(ViewMsg_AsyncOpenFile_ACK, OnAsyncFileOpened)
#if defined(OS_MACOSX)
IPC_MESSAGE_HANDLER(ViewMsg_SelectPopupMenuItem, OnSelectPopupMenuItem)
#endif
IPC_MESSAGE_HANDLER(ViewMsg_JavaScriptStressTestControl,
OnJavaScriptStressTestControl)
IPC_MESSAGE_HANDLER(ViewMsg_ContextMenuClosed, OnContextMenuClosed)
IPC_MESSAGE_HANDLER(ViewMsg_NetworkStateChanged, OnNetworkStateChanged)
// TODO(viettrungluu): Move to a separate message filter.
#if defined(ENABLE_FLAPPER_HACKS)
IPC_MESSAGE_HANDLER(PepperMsg_ConnectTcpACK, OnConnectTcpACK)
#endif
// Have the super handle all other messages.
IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
IPC_END_MESSAGE_MAP()
return handled;
}
void RenderView::OnCaptureThumbnail() {
WebFrame* main_frame = webview()->mainFrame();
if (!main_frame)
return;
// get the URL for this page
GURL url(main_frame->url());
if (url.is_empty())
return;
if (size_.IsEmpty())
return; // Don't create an empty thumbnail!
ThumbnailScore score;
SkBitmap thumbnail;
if (!CaptureThumbnail(webview(), kThumbnailWidth, kThumbnailHeight,
&thumbnail, &score))
return;
// send the thumbnail message to the browser process
Send(new ViewHostMsg_Thumbnail(routing_id_, url, score, thumbnail));
}
void RenderView::OnCaptureSnapshot() {
SkBitmap snapshot;
bool error = false;
WebFrame* main_frame = webview()->mainFrame();
if (!main_frame)
error = true;
if (!error && !CaptureSnapshot(webview(), &snapshot))
error = true;
DCHECK(error == snapshot.empty()) <<
"Snapshot should be empty on error, non-empty otherwise.";
// Send the snapshot to the browser process.
Send(new ViewHostMsg_Snapshot(routing_id_, snapshot));
}
void RenderView::CapturePageInfo(int load_id, bool preliminary_capture) {
if (load_id != page_id_)
return; // this capture call is no longer relevant due to navigation
if (load_id == last_indexed_page_id_)
return; // we already indexed this page
if (!webview())
return;
WebFrame* main_frame = webview()->mainFrame();
if (!main_frame)
return;
// Don't index/capture pages that are in view source mode.
if (main_frame->isViewSourceModeEnabled())
return;
// Don't index/capture pages that failed to load. This only checks the top
// level frame so the thumbnail may contain a frame that failed to load.
WebDataSource* ds = main_frame->dataSource();
if (ds && ds->hasUnreachableURL())
return;
if (!preliminary_capture)
last_indexed_page_id_ = load_id;
// Get the URL for this page.
GURL url(main_frame->url());
if (url.is_empty())
return;
// Retrieve the frame's full text.
string16 contents;
CaptureText(main_frame, &contents);
if (contents.size()) {
WebKit::WebDocument document = main_frame->document();
// If the page explicitly specifies a language, use it, otherwise we'll
// determine it based on the text content using the CLD.
std::string language =
TranslateHelper::GetPageLanguageFromMetaTag(&document);
if (language.empty()) {
base::TimeTicks begin_time = base::TimeTicks::Now();
language = content::GetContentClient()->renderer()->
DetermineTextLanguage(contents);
UMA_HISTOGRAM_MEDIUM_TIMES("Renderer4.LanguageDetection",
base::TimeTicks::Now() - begin_time);
}
// Send the text to the browser for indexing (the browser might decide not
// to index, if the URL is HTTPS for instance) and language discovery.
Send(new ViewHostMsg_PageContents(
routing_id_, url, load_id, contents, language,
TranslateHelper::IsPageTranslatable(&document)));
}
// Generate the thumbnail here if the in-browser thumbnailing isn't
// enabled. TODO(satorux): Remove this and related code once
// crbug.com/65936 is complete.
if (!CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableInBrowserThumbnailing)) {
OnCaptureThumbnail();
}
FOR_EACH_OBSERVER(RenderViewObserver, observers_,
PageCaptured(contents, preliminary_capture));
}
void RenderView::CaptureText(WebFrame* frame, string16* contents) {
contents->clear();
if (!frame)
return;
#ifdef TIME_TEXT_RETRIEVAL
double begin = time_util::GetHighResolutionTimeNow();
#endif
// get the contents of the frame
*contents = frame->contentAsText(kMaxIndexChars);
#ifdef TIME_TEXT_RETRIEVAL
double end = time_util::GetHighResolutionTimeNow();
char buf[128];
sprintf_s(buf, "%d chars retrieved for indexing in %gms\n",
contents.size(), (end - begin)*1000);
OutputDebugStringA(buf);
#endif
// When the contents are clipped to the maximum, we don't want to have a
// partial word indexed at the end that might have been clipped. Therefore,
// terminate the string at the last space to ensure no words are clipped.
if (contents->size() == kMaxIndexChars) {
size_t last_space_index = contents->find_last_of(kWhitespaceUTF16);
if (last_space_index == std::wstring::npos)
return; // don't index if we got a huge block of text with no spaces
contents->resize(last_space_index);
}
}
bool RenderView::CaptureThumbnail(WebView* view,
int w,
int h,
SkBitmap* thumbnail,
ThumbnailScore* score) {
base::TimeTicks beginning_time = base::TimeTicks::Now();
skia::PlatformCanvas canvas;
// Paint |view| into |canvas|.
if (!PaintViewIntoCanvas(view, canvas))
return false;
skia::BitmapPlatformDevice& device =
static_cast<skia::BitmapPlatformDevice&>(canvas.getTopPlatformDevice());
const SkBitmap& src_bmp = device.accessBitmap(false);
SkRect dest_rect = { 0, 0, SkIntToScalar(w), SkIntToScalar(h) };
float dest_aspect = dest_rect.width() / dest_rect.height();
// Get the src rect so that we can preserve the aspect ratio while filling
// the destination.
SkIRect src_rect;
if (src_bmp.width() < dest_rect.width() ||
src_bmp.height() < dest_rect.height()) {
// Source image is smaller: we clip the part of source image within the
// dest rect, and then stretch it to fill the dest rect. We don't respect
// the aspect ratio in this case.
src_rect.set(0, 0, static_cast<S16CPU>(dest_rect.width()),
static_cast<S16CPU>(dest_rect.height()));
score->good_clipping = false;
} else {
float src_aspect = static_cast<float>(src_bmp.width()) / src_bmp.height();
if (src_aspect > dest_aspect) {
// Wider than tall, clip horizontally: we center the smaller thumbnail in
// the wider screen.
S16CPU new_width = static_cast<S16CPU>(src_bmp.height() * dest_aspect);
S16CPU x_offset = (src_bmp.width() - new_width) / 2;
src_rect.set(x_offset, 0, new_width + x_offset, src_bmp.height());
score->good_clipping = false;
} else {
src_rect.set(0, 0, src_bmp.width(),
static_cast<S16CPU>(src_bmp.width() / dest_aspect));
score->good_clipping = true;
}
}
score->at_top = (view->mainFrame()->scrollOffset().height == 0);
SkBitmap subset;
device.accessBitmap(false).extractSubset(&subset, src_rect);
// First do a fast downsample by powers of two to get close to the final size.
SkBitmap downsampled_subset =
SkBitmapOperations::DownsampleByTwoUntilSize(subset, w, h);
// Do a high-quality resize from the downscaled size to the final size.
*thumbnail = skia::ImageOperations::Resize(
downsampled_subset, skia::ImageOperations::RESIZE_LANCZOS3, w, h);
score->boring_score = CalculateBoringScore(thumbnail);
HISTOGRAM_TIMES("Renderer4.Thumbnail",
base::TimeTicks::Now() - beginning_time);
return true;
}
bool RenderView::CaptureSnapshot(WebView* view, SkBitmap* snapshot) {
base::TimeTicks beginning_time = base::TimeTicks::Now();
skia::PlatformCanvas canvas;
if (!PaintViewIntoCanvas(view, canvas))
return false;
skia::BitmapPlatformDevice& device =
static_cast<skia::BitmapPlatformDevice&>(canvas.getTopPlatformDevice());
const SkBitmap& bitmap = device.accessBitmap(false);
if (!bitmap.copyTo(snapshot, SkBitmap::kARGB_8888_Config))
return false;
HISTOGRAM_TIMES("Renderer4.Snapshot",
base::TimeTicks::Now() - beginning_time);
return true;
}
void RenderView::OnNavigate(const ViewMsg_Navigate_Params& params) {
if (!webview())
return;
history_list_offset_ = params.current_history_list_offset;
history_list_length_ = params.current_history_list_length;
child_process_logging::SetActiveURL(params.url);
AboutHandler::MaybeHandle(params.url);
bool is_reload =
params.navigation_type == ViewMsg_Navigate_Type::RELOAD ||
params.navigation_type == ViewMsg_Navigate_Type::RELOAD_IGNORING_CACHE;
WebFrame* main_frame = webview()->mainFrame();
if (is_reload && main_frame->currentHistoryItem().isNull()) {
// We cannot reload if we do not have any history state. This happens, for
// example, when recovering from a crash. Our workaround here is a bit of
// a hack since it means that reload after a crashed tab does not cause an
// end-to-end cache validation.
is_reload = false;
}
// A navigation resulting from loading a javascript URL should not be treated
// as a browser initiated event. Instead, we want it to look as if the page
// initiated any load resulting from JS execution.
if (!params.url.SchemeIs(chrome::kJavaScriptScheme)) {
NavigationState* state = NavigationState::CreateBrowserInitiated(
params.page_id,
params.pending_history_list_offset,
params.transition,
params.request_time);
if (params.navigation_type == ViewMsg_Navigate_Type::RESTORE) {
// We're doing a load of a page that was restored from the last session.
// By default this prefers the cache over loading (LOAD_PREFERRING_CACHE)
// which can result in stale data for pages that are set to expire. We
// explicitly override that by setting the policy here so that as
// necessary we load from the network.
state->set_cache_policy_override(WebURLRequest::UseProtocolCachePolicy);
}
pending_navigation_state_.reset(state);
}
NavigationState* navigation_state = pending_navigation_state_.get();
// If we are reloading, then WebKit will use the history state of the current
// page, so we should just ignore any given history state. Otherwise, if we
// have history state, then we need to navigate to it, which corresponds to a
// back/forward navigation event.
if (is_reload) {
if (navigation_state)
navigation_state->set_load_type(NavigationState::RELOAD);
bool ignore_cache = (params.navigation_type ==
ViewMsg_Navigate_Type::RELOAD_IGNORING_CACHE);
main_frame->reload(ignore_cache);
} else if (!params.state.empty()) {
// We must know the page ID of the page we are navigating back to.
DCHECK_NE(params.page_id, -1);
if (navigation_state)
navigation_state->set_load_type(NavigationState::HISTORY_LOAD);
main_frame->loadHistoryItem(
webkit_glue::HistoryItemFromString(params.state));
} else {
// Navigate to the given URL.
WebURLRequest request(params.url);
// A session history navigation should have been accompanied by state.
DCHECK_EQ(params.page_id, -1);
if (main_frame->isViewSourceModeEnabled())
request.setCachePolicy(WebURLRequest::ReturnCacheDataElseLoad);
if (params.referrer.is_valid()) {
request.setHTTPHeaderField(WebString::fromUTF8("Referer"),
WebString::fromUTF8(params.referrer.spec()));
}
if (!params.extra_headers.empty()) {
for (net::HttpUtil::HeadersIterator i(params.extra_headers.begin(),
params.extra_headers.end(), "\n");
i.GetNext(); ) {
request.addHTTPHeaderField(WebString::fromUTF8(i.name()),
WebString::fromUTF8(i.values()));
}
}
if (navigation_state) {
if (params.navigation_type != ViewMsg_Navigate_Type::PRERENDER) {
navigation_state->set_load_type(NavigationState::NORMAL_LOAD);
} else {
navigation_state->set_load_type(NavigationState::PRERENDER_LOAD);
is_prerendering_ = true;
}
}
main_frame->loadRequest(request);
}
// In case LoadRequest failed before DidCreateDataSource was called.
pending_navigation_state_.reset();
}
// Stop loading the current page
void RenderView::OnStop() {
if (webview())
webview()->mainFrame()->stopLoading();
}
// Reload current focused frame.
// E.g. called by right-clicking on the frame and picking "reload this frame".
void RenderView::OnReloadFrame() {
if (webview() && webview()->focusedFrame()) {
// We always obey the cache (ignore_cache=false) here.
// TODO(evanm): perhaps we could allow shift-clicking the menu item to do
// a cache-ignoring reload of the frame.
webview()->focusedFrame()->reload(false);
}
}
void RenderView::OnCopyImageAt(int x, int y) {
webview()->copyImageAt(WebPoint(x, y));
}
void RenderView::OnExecuteEditCommand(const std::string& name,
const std::string& value) {
if (!webview() || !webview()->focusedFrame())
return;
webview()->focusedFrame()->executeCommand(
WebString::fromUTF8(name), WebString::fromUTF8(value));
}
void RenderView::OnUpdateTargetURLAck() {
// Check if there is a targeturl waiting to be sent.
if (target_url_status_ == TARGET_PENDING) {
Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_,
pending_target_url_));
}
target_url_status_ = TARGET_NONE;
}
void RenderView::OnUndo() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Undo"));
UserMetricsRecordAction("Undo");
}
void RenderView::OnRedo() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Redo"));
UserMetricsRecordAction("Redo");
}
void RenderView::OnCut() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Cut"));
UserMetricsRecordAction("Cut");
}
void RenderView::OnCopy() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Copy"));
UserMetricsRecordAction("Copy");
}
#if defined(OS_MACOSX)
void RenderView::OnCopyToFindPboard() {
if (!webview())
return;
// Since the find pasteboard supports only plain text, this can be simpler
// than the |OnCopy()| case.
WebFrame* frame = webview()->focusedFrame();
if (frame->hasSelection()) {
string16 selection = frame->selectionAsText();
RenderThread::current()->Send(
new ClipboardHostMsg_FindPboardWriteStringAsync(selection));
}
UserMetricsRecordAction("CopyToFindPboard");
}
#endif
void RenderView::OnPaste() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Paste"));
UserMetricsRecordAction("Paste");
}
void RenderView::OnReplace(const string16& text) {
if (!webview())
return;
WebFrame* frame = webview()->focusedFrame();
if (!frame->hasSelection())
frame->selectWordAroundCaret();
frame->replaceSelection(text);
}
void RenderView::OnDelete() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(WebString::fromUTF8("Delete"));
UserMetricsRecordAction("DeleteSelection");
}
void RenderView::OnSelectAll() {
if (!webview())
return;
webview()->focusedFrame()->executeCommand(
WebString::fromUTF8("SelectAll"));
UserMetricsRecordAction("SelectAll");
}
void RenderView::OnSetInitialFocus(bool reverse) {
if (!webview())
return;
webview()->setInitialFocus(reverse);
}
void RenderView::OnScrollFocusedEditableNodeIntoView() {
WebKit::WebNode node = GetFocusedNode();
if (!node.isNull()) {
if (IsEditableNode(node))
// TODO(varunjain): Change webkit API to scroll a particular node into
// view and use that API here instead.
webview()->scrollFocusedNodeIntoView();
}
}
///////////////////////////////////////////////////////////////////////////////
void RenderView::SetContentSettings(const ContentSettings& settings) {
current_content_settings_ = settings;
}
// Tell the embedding application that the URL of the active page has changed
void RenderView::UpdateURL(WebFrame* frame) {
WebDataSource* ds = frame->dataSource();
DCHECK(ds);
const WebURLRequest& request = ds->request();
const WebURLRequest& original_request = ds->originalRequest();
const WebURLResponse& response = ds->response();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
DCHECK(navigation_state);
ViewHostMsg_FrameNavigate_Params params;
params.http_status_code = response.httpStatusCode();
params.is_post = false;
params.page_id = page_id_;
params.frame_id = frame->identifier();
params.socket_address.set_host(response.remoteIPAddress().utf8());
params.socket_address.set_port(response.remotePort());
params.was_fetched_via_proxy = response.wasFetchedViaProxy();
params.was_within_same_page = navigation_state->was_within_same_page();
if (!navigation_state->security_info().empty()) {
// SSL state specified in the request takes precedence over the one in the
// response.
// So far this is only intended for error pages that are not expected to be
// over ssl, so we should not get any clash.
DCHECK(response.securityInfo().isEmpty());
params.security_info = navigation_state->security_info();
} else {
params.security_info = response.securityInfo();
}
// Set the URL to be displayed in the browser UI to the user.
if (ds->hasUnreachableURL()) {
params.url = ds->unreachableURL();
} else {
params.url = request.url();
}
GetRedirectChain(ds, ¶ms.redirects);
params.should_update_history = !ds->hasUnreachableURL() &&
!response.isMultipartPayload() && (response.httpStatusCode() != 404);
params.searchable_form_url = navigation_state->searchable_form_url();
params.searchable_form_encoding =
navigation_state->searchable_form_encoding();
const PasswordForm* password_form_data =
navigation_state->password_form_data();
if (password_form_data)
params.password_form = *password_form_data;
params.gesture = navigation_gesture_;
navigation_gesture_ = NavigationGestureUnknown;
// Make navigation state a part of the FrameNavigate message so that commited
// entry had it at all times.
const WebHistoryItem& item = frame->currentHistoryItem();
if (!item.isNull()) {
params.content_state = webkit_glue::HistoryItemToString(item);
} else {
params.content_state =
webkit_glue::CreateHistoryStateForURL(GURL(request.url()));
}
if (!frame->parent()) {
// Top-level navigation.
// Clear "block" flags for the new page. This needs to happen before any of
// allowScripts(), allowImages(), allowPlugins() is called for the new page
// so that these functions can correctly detect that a piece of content
// flipped from "not blocked" to "blocked".
ClearBlockedContentSettings();
// Set content settings. Default them from the parent window if one exists.
// This makes sure about:blank windows work as expected.
HostContentSettings::iterator host_content_settings =
host_content_settings_.find(GURL(request.url()));
if (host_content_settings != host_content_settings_.end()) {
SetContentSettings(host_content_settings->second);
// These content settings were merely recorded transiently for this load.
// We can erase them now. If at some point we reload this page, the
// browser will send us new, up-to-date content settings.
host_content_settings_.erase(host_content_settings);
} else if (frame->opener()) {
// The opener's view is not guaranteed to be non-null (it could be
// detached from its page but not yet destructed).
if (WebView* opener_view = frame->opener()->view()) {
RenderView* opener = FromWebView(opener_view);
SetContentSettings(opener->current_content_settings_);
}
}
// Set zoom level, but don't do it for full-page plugin since they don't use
// the same zoom settings.
HostZoomLevels::iterator host_zoom =
host_zoom_levels_.find(GURL(request.url()));
if (webview()->mainFrame()->document().isPluginDocument()) {
// Reset the zoom levels for plugins.
webview()->setZoomLevel(false, 0);
} else {
if (host_zoom != host_zoom_levels_.end())
webview()->setZoomLevel(false, host_zoom->second);
}
if (host_zoom != host_zoom_levels_.end()) {
// This zoom level was merely recorded transiently for this load. We can
// erase it now. If at some point we reload this page, the browser will
// send us a new, up-to-date zoom level.
host_zoom_levels_.erase(host_zoom);
}
// Reset the zoom limits in case a plugin had changed them previously. This
// will also call us back which will cause us to send a message to
// update TabContents.
webview()->zoomLimitsChanged(
WebView::zoomFactorToZoomLevel(WebView::minTextSizeMultiplier),
WebView::zoomFactorToZoomLevel(WebView::maxTextSizeMultiplier));
// Update contents MIME type for main frame.
params.contents_mime_type = ds->response().mimeType().utf8();
params.transition = navigation_state->transition_type();
if (!PageTransition::IsMainFrame(params.transition)) {
// If the main frame does a load, it should not be reported as a subframe
// navigation. This can occur in the following case:
// 1. You're on a site with frames.
// 2. You do a subframe navigation. This is stored with transition type
// MANUAL_SUBFRAME.
// 3. You navigate to some non-frame site, say, google.com.
// 4. You navigate back to the page from step 2. Since it was initially
// MANUAL_SUBFRAME, it will be that same transition type here.
// We don't want that, because any navigation that changes the toplevel
// frame should be tracked as a toplevel navigation (this allows us to
// update the URL bar, etc).
params.transition = PageTransition::LINK;
}
// If we have a valid consumed client redirect source,
// the page contained a client redirect (meta refresh, document.loc...),
// so we set the referrer and transition to match.
if (completed_client_redirect_src_.is_valid()) {
DCHECK(completed_client_redirect_src_ == params.redirects[0]);
params.referrer = completed_client_redirect_src_;
params.transition = static_cast<PageTransition::Type>(
params.transition | PageTransition::CLIENT_REDIRECT);
} else {
// Bug 654101: the referrer will be empty on https->http transitions. It
// would be nice if we could get the real referrer from somewhere.
params.referrer = GURL(
original_request.httpHeaderField(WebString::fromUTF8("Referer")));
}
string16 method = request.httpMethod();
if (EqualsASCII(method, "POST"))
params.is_post = true;
// Save some histogram data so we can compute the average memory used per
// page load of the glyphs.
UMA_HISTOGRAM_COUNTS_10000("Memory.GlyphPagesPerLoad",
webkit_glue::GetGlyphPageCount());
// This message needs to be sent before any of allowScripts(),
// allowImages(), allowPlugins() is called for the new page, so that when
// these functions send a ViewHostMsg_ContentBlocked message, it arrives
// after the ViewHostMsg_FrameNavigate message.
Send(new ViewHostMsg_FrameNavigate(routing_id_, params));
} else {
// Subframe navigation: the type depends on whether this navigation
// generated a new session history entry. When they do generate a session
// history entry, it means the user initiated the navigation and we should
// mark it as such. This test checks if this is the first time UpdateURL
// has been called since WillNavigateToURL was called to initiate the load.
if (page_id_ > last_page_id_sent_to_browser_)
params.transition = PageTransition::MANUAL_SUBFRAME;
else
params.transition = PageTransition::AUTO_SUBFRAME;
Send(new ViewHostMsg_FrameNavigate(routing_id_, params));
}
last_page_id_sent_to_browser_ =
std::max(last_page_id_sent_to_browser_, page_id_);
// If we end up reusing this WebRequest (for example, due to a #ref click),
// we don't want the transition type to persist. Just clear it.
navigation_state->set_transition_type(PageTransition::LINK);
// Check if the navigation was within the same page, in which case we don't
// want to clear the accessibility cache.
if (accessibility_.get() && !navigation_state->was_within_same_page()) {
accessibility_.reset();
pending_accessibility_notifications_.clear();
}
}
// Tell the embedding application that the title of the active page has changed
void RenderView::UpdateTitle(WebFrame* frame, const string16& title) {
// Ignore all but top level navigations...
if (!frame->parent()) {
Send(new ViewHostMsg_UpdateTitle(
routing_id_,
page_id_,
UTF16ToWideHack(title.length() > chrome::kMaxTitleChars ?
title.substr(0, chrome::kMaxTitleChars) : title)));
}
}
void RenderView::UpdateEncoding(WebFrame* frame,
const std::string& encoding_name) {
// Only update main frame's encoding_name.
if (webview()->mainFrame() == frame &&
last_encoding_name_ != encoding_name) {
// Save the encoding name for later comparing.
last_encoding_name_ = encoding_name;
Send(new ViewHostMsg_UpdateEncoding(routing_id_, last_encoding_name_));
}
}
// Sends the last committed session history state to the browser so it will be
// saved before we navigate to a new page. This must be called *before* the
// page ID has been updated so we know what it was.
void RenderView::UpdateSessionHistory(WebFrame* frame) {
// If we have a valid page ID at this point, then it corresponds to the page
// we are navigating away from. Otherwise, this is the first navigation, so
// there is no past session history to record.
if (page_id_ == -1)
return;
const WebHistoryItem& item =
webview()->mainFrame()->previousHistoryItem();
if (item.isNull())
return;
Send(new ViewHostMsg_UpdateState(
routing_id_, page_id_, webkit_glue::HistoryItemToString(item)));
}
void RenderView::OpenURL(
const GURL& url, const GURL& referrer, WebNavigationPolicy policy) {
Send(new ViewHostMsg_OpenURL(
routing_id_, url, referrer, NavigationPolicyToDisposition(policy)));
}
// WebViewDelegate ------------------------------------------------------------
void RenderView::LoadNavigationErrorPage(WebFrame* frame,
const WebURLRequest& failed_request,
const WebURLError& error,
const std::string& html,
bool replace) {
std::string alt_html = !html.empty() ? html :
content::GetContentClient()->renderer()->GetNavigationErrorHtml(
failed_request, error);
frame->loadHTMLString(alt_html,
GURL(chrome::kUnreachableWebDataURL),
error.unreachableURL,
replace);
}
void RenderView::BindDOMAutomationController(WebFrame* frame) {
if (!dom_automation_controller_.get()) {
dom_automation_controller_.reset(new DomAutomationController());
}
dom_automation_controller_->set_message_sender(this);
dom_automation_controller_->set_routing_id(routing_id_);
dom_automation_controller_->BindToJavascript(frame,
"domAutomationController");
}
bool RenderView::RunJavaScriptMessage(int type,
const std::wstring& message,
const std::wstring& default_value,
const GURL& frame_url,
std::wstring* result) {
bool success = false;
std::wstring result_temp;
if (!result)
result = &result_temp;
SendAndRunNestedMessageLoop(new ViewHostMsg_RunJavaScriptMessage(
routing_id_, message, default_value, frame_url, type, &success, result));
return success;
}
bool RenderView::SendAndRunNestedMessageLoop(IPC::SyncMessage* message) {
// Before WebKit asks us to show an alert (etc.), it takes care of doing the
// equivalent of WebView::willEnterModalLoop. In the case of showModalDialog
// it is particularly important that we do not call willEnterModalLoop as
// that would defer resource loads for the dialog itself.
if (RenderThread::current()) // Will be NULL during unit tests.
RenderThread::current()->DoNotNotifyWebKitOfModalLoop();
message->EnableMessagePumping(); // Runs a nested message loop.
return Send(message);
}
void RenderView::AddGURLSearchProvider(
const GURL& osd_url,
search_provider::OSDDType provider_type) {
if (!osd_url.is_empty())
Send(new ViewHostMsg_PageHasOSDD(routing_id_, page_id_, osd_url,
provider_type));
}
void RenderView::OnAllowScriptToClose(bool script_can_close) {
script_can_close_ = script_can_close;
}
void RenderView::AddSearchProvider(
const std::string& url,
search_provider::OSDDType provider_type) {
if (provider_type == search_provider::EXPLICIT_DEFAULT_PROVIDER &&
!webview()->mainFrame()->isProcessingUserGesture())
return;
AddGURLSearchProvider(GURL(url), provider_type);
}
search_provider::InstallState
RenderView::GetSearchProviderInstallState(WebFrame* frame,
const std::string& url) {
GURL inquiry_url = GURL(url);
if (inquiry_url.is_empty())
return search_provider::DENIED;
search_provider::InstallState install;
Send(new ViewHostMsg_GetSearchProviderInstallState(routing_id_,
frame->url(),
inquiry_url,
&install));
return install;
}
void RenderView::OnMissingPluginStatus(
WebPluginDelegateProxy* delegate,
int status) {
#if defined(OS_WIN)
if (!first_default_plugin_) {
// Show the InfoBar for the first available plugin.
if (status == webkit::npapi::default_plugin::MISSING_PLUGIN_AVAILABLE) {
first_default_plugin_ = delegate->AsWeakPtr();
Send(new ViewHostMsg_MissingPluginStatus(routing_id_, status));
}
} else {
// Closes the InfoBar if user clicks on the plugin (instead of the InfoBar)
// to start the download/install.
if (status ==
webkit::npapi::default_plugin::MISSING_PLUGIN_USER_STARTED_DOWNLOAD) {
Send(new ViewHostMsg_MissingPluginStatus(routing_id_, status));
}
}
#else
// TODO(port): Implement the infobar that accompanies the default plugin.
// Linux: http://crbug.com/10952
// Mac: http://crbug.com/17392
NOTIMPLEMENTED();
#endif
}
// WebKit::WebViewClient ------------------------------------------------------
WebView* RenderView::createView(
WebFrame* creator,
const WebURLRequest& request,
const WebWindowFeatures& features,
const WebString& frame_name) {
// Check to make sure we aren't overloading on popups.
if (shared_popup_counter_->data > kMaximumNumberOfUnacknowledgedPopups)
return NULL;
// This window can't be closed from a window.close() call until we receive a
// message from the Browser process explicitly allowing it.
script_can_close_ = false;
ViewHostMsg_CreateWindow_Params params;
params.opener_id = routing_id_;
params.user_gesture = creator->isProcessingUserGesture();
params.window_container_type = WindowFeaturesToContainerType(features);
params.session_storage_namespace_id = session_storage_namespace_id_;
params.frame_name = frame_name;
params.opener_frame_id = creator->identifier();
params.opener_url = creator->url();
params.opener_security_origin = creator->securityOrigin().toString().utf8();
if (!request.isNull())
params.target_url = request.url();
int32 routing_id = MSG_ROUTING_NONE;
int64 cloned_session_storage_namespace_id;
bool opener_suppressed = creator->willSuppressOpenerInNewFrame();
render_thread_->Send(
new ViewHostMsg_CreateWindow(params,
&routing_id,
&cloned_session_storage_namespace_id));
if (routing_id == MSG_ROUTING_NONE)
return NULL;
RenderView* view = RenderView::Create(render_thread_,
0,
routing_id_,
renderer_preferences_,
webkit_preferences_,
shared_popup_counter_,
routing_id,
cloned_session_storage_namespace_id,
frame_name);
view->opened_by_user_gesture_ = params.user_gesture;
// Record whether the creator frame is trying to suppress the opener field.
view->opener_suppressed_ = opener_suppressed;
// Record the security origin of the creator.
GURL creator_url(creator->securityOrigin().toString().utf8());
if (!creator_url.is_valid() || !creator_url.IsStandard())
creator_url = GURL();
view->creator_url_ = creator_url;
// Copy over the alternate error page URL so we can have alt error pages in
// the new render view (we don't need the browser to send the URL back down).
view->alternate_error_page_url_ = alternate_error_page_url_;
return view->webview();
}
WebWidget* RenderView::createPopupMenu(WebKit::WebPopupType popup_type) {
RenderWidget* widget = RenderWidget::Create(routing_id_,
render_thread_,
popup_type);
return widget->webwidget();
}
WebWidget* RenderView::createPopupMenu(const WebPopupMenuInfo& info) {
// TODO(jcivelli): Remove this deprecated method when its been removed from
// the WebViewClient interface. It's been replaced by
// createExternalPopupMenu.
NOTREACHED();
return NULL;
}
WebExternalPopupMenu* RenderView::createExternalPopupMenu(
const WebPopupMenuInfo& popup_menu_info,
WebExternalPopupMenuClient* popup_menu_client) {
DCHECK(!external_popup_menu_.get());
external_popup_menu_.reset(
new ExternalPopupMenu(this, popup_menu_info, popup_menu_client));
return external_popup_menu_.get();
}
webkit::ppapi::FullscreenContainer*
RenderView::CreatePepperFullscreenContainer(
webkit::ppapi::PluginInstance* plugin) {
GURL active_url;
if (webview() && webview()->mainFrame())
active_url = GURL(webview()->mainFrame()->url());
RenderWidgetFullscreenPepper* widget = RenderWidgetFullscreenPepper::Create(
routing_id_, render_thread_, plugin, active_url);
widget->show(WebKit::WebNavigationPolicyIgnore);
return widget;
}
WebStorageNamespace* RenderView::createSessionStorageNamespace(unsigned quota) {
if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess))
return WebStorageNamespace::createSessionStorageNamespace(quota);
CHECK(session_storage_namespace_id_ != kInvalidSessionStorageNamespaceId);
return new RendererWebStorageNamespaceImpl(DOM_STORAGE_SESSION,
session_storage_namespace_id_);
}
void RenderView::didAddMessageToConsole(
const WebConsoleMessage& message, const WebString& source_name,
unsigned source_line) {
Send(new ViewHostMsg_AddMessageToConsole(routing_id_,
UTF16ToWideHack(message.text),
static_cast<int32>(source_line),
UTF16ToWideHack(source_name)));
}
void RenderView::printPage(WebFrame* frame) {
FOR_EACH_OBSERVER(RenderViewObserver, observers_, PrintPage(frame));
}
WebKit::WebNotificationPresenter* RenderView::notificationPresenter() {
return notification_provider_;
}
void RenderView::didStartLoading() {
if (is_loading_) {
DLOG(WARNING) << "didStartLoading called while loading";
return;
}
is_loading_ = true;
// Clear the pointer so that we can assign it only when there is an unknown
// plugin on a page.
first_default_plugin_.reset();
Send(new ViewHostMsg_DidStartLoading(routing_id_));
}
void RenderView::didStopLoading() {
if (!is_loading_) {
DLOG(WARNING) << "DidStopLoading called while not loading";
return;
}
is_loading_ = false;
// NOTE: For now we're doing the safest thing, and sending out notification
// when done loading. This currently isn't an issue as the favicon is only
// displayed when done loading. Ideally we would send notification when
// finished parsing the head, but webkit doesn't support that yet.
// The feed discovery code would also benefit from access to the head.
GURL favicon_url(webview()->mainFrame()->favIconURL());
if (!favicon_url.is_empty())
Send(new ViewHostMsg_UpdateFaviconURL(routing_id_, page_id_, favicon_url));
AddGURLSearchProvider(webview()->mainFrame()->openSearchDescriptionURL(),
search_provider::AUTODETECTED_PROVIDER);
Send(new ViewHostMsg_DidStopLoading(routing_id_));
if (load_progress_tracker_ != NULL)
load_progress_tracker_->DidStopLoading();
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
page_info_method_factory_.NewRunnableMethod(
&RenderView::CapturePageInfo, page_id_, false),
send_content_state_immediately_ ? 0 : kDelayForCaptureMs);
}
void RenderView::didChangeLoadProgress(WebFrame* frame, double load_progress) {
if (load_progress_tracker_ != NULL)
load_progress_tracker_->DidChangeLoadProgress(frame, load_progress);
}
bool RenderView::isSmartInsertDeleteEnabled() {
#if defined(OS_MACOSX)
return true;
#else
return false;
#endif
}
bool RenderView::isSelectTrailingWhitespaceEnabled() {
#if defined(OS_WIN)
return true;
#else
return false;
#endif
}
void RenderView::didChangeSelection(bool is_empty_selection) {
#if defined(OS_POSIX)
if (!handling_input_event_)
return;
// TODO(estade): investigate incremental updates to the selection so that we
// don't send the entire selection over IPC every time.
if (!is_empty_selection) {
// Sometimes we get repeated didChangeSelection calls from webkit when
// the selection hasn't actually changed. We don't want to report these
// because it will cause us to continually claim the X clipboard.
const std::string& this_selection =
webview()->focusedFrame()->selectionAsText().utf8();
if (this_selection == last_selection_)
return;
Send(new ViewHostMsg_SelectionChanged(routing_id_,
this_selection));
last_selection_ = this_selection;
} else {
last_selection_.clear();
Send(new ViewHostMsg_SelectionChanged(routing_id_,
last_selection_));
}
#endif // defined(OS_POSIX)
}
void RenderView::didExecuteCommand(const WebString& command_name) {
const std::string& name = UTF16ToUTF8(command_name);
if (StartsWithASCII(name, "Move", true) ||
StartsWithASCII(name, "Insert", true) ||
StartsWithASCII(name, "Delete", true))
return;
UserMetricsRecordAction(name);
}
void RenderView::SendPendingAccessibilityNotifications() {
if (!accessibility_.get())
return;
if (pending_accessibility_notifications_.empty())
return;
// Send all pending accessibility notifications.
std::vector<ViewHostMsg_AccessibilityNotification_Params> notifications;
for (size_t i = 0; i < pending_accessibility_notifications_.size(); i++) {
RendererAccessibilityNotification& notification =
pending_accessibility_notifications_[i];
WebAccessibilityObject obj = accessibility_->getObjectById(notification.id);
if (!obj.isValid())
continue;
ViewHostMsg_AccessibilityNotification_Params param;
WebAccessibilityNotificationToViewHostMsg(
pending_accessibility_notifications_[i].type, ¶m.notification_type);
param.acc_obj = WebAccessibility(
obj, accessibility_.get(), notification.ShouldIncludeChildren());
notifications.push_back(param);
}
pending_accessibility_notifications_.clear();
Send(new ViewHostMsg_AccessibilityNotifications(routing_id_, notifications));
accessibility_ack_pending_ = true;
}
bool RenderView::handleCurrentKeyboardEvent() {
if (edit_commands_.empty())
return false;
WebFrame* frame = webview()->focusedFrame();
if (!frame)
return false;
EditCommands::iterator it = edit_commands_.begin();
EditCommands::iterator end = edit_commands_.end();
bool did_execute_command = false;
for (; it != end; ++it) {
// In gtk and cocoa, it's possible to bind multiple edit commands to one
// key (but it's the exception). Once one edit command is not executed, it
// seems safest to not execute the rest.
if (!frame->executeCommand(WebString::fromUTF8(it->name),
WebString::fromUTF8(it->value)))
break;
did_execute_command = true;
}
return did_execute_command;
}
bool RenderView::runFileChooser(
const WebKit::WebFileChooserParams& params,
WebFileChooserCompletion* chooser_completion) {
// Do not open the file dialog in a hidden RenderView.
if (is_hidden())
return false;
ViewHostMsg_RunFileChooser_Params ipc_params;
if (params.directory)
ipc_params.mode = ViewHostMsg_RunFileChooser_Mode::OpenFolder;
else if (params.multiSelect)
ipc_params.mode = ViewHostMsg_RunFileChooser_Mode::OpenMultiple;
else
ipc_params.mode = ViewHostMsg_RunFileChooser_Mode::Open;
ipc_params.title = params.title;
ipc_params.default_file_name =
webkit_glue::WebStringToFilePath(params.initialValue);
ipc_params.accept_types = params.acceptTypes;
return ScheduleFileChooser(ipc_params, chooser_completion);
}
void RenderView::runModalAlertDialog(
WebFrame* frame, const WebString& message) {
RunJavaScriptMessage(ui::MessageBoxFlags::kIsJavascriptAlert,
UTF16ToWideHack(message),
std::wstring(),
frame->url(),
NULL);
}
bool RenderView::runModalConfirmDialog(
WebFrame* frame, const WebString& message) {
return RunJavaScriptMessage(ui::MessageBoxFlags::kIsJavascriptConfirm,
UTF16ToWideHack(message),
std::wstring(),
frame->url(),
NULL);
}
bool RenderView::runModalPromptDialog(
WebFrame* frame, const WebString& message, const WebString& default_value,
WebString* actual_value) {
std::wstring result;
bool ok = RunJavaScriptMessage(ui::MessageBoxFlags::kIsJavascriptPrompt,
UTF16ToWideHack(message),
UTF16ToWideHack(default_value),
frame->url(),
&result);
if (ok)
actual_value->assign(WideToUTF16Hack(result));
return ok;
}
bool RenderView::runModalBeforeUnloadDialog(
WebFrame* frame, const WebString& message) {
bool success = false;
// This is an ignored return value, but is included so we can accept the same
// response as RunJavaScriptMessage.
std::wstring ignored_result;
SendAndRunNestedMessageLoop(new ViewHostMsg_RunBeforeUnloadConfirm(
routing_id_, frame->url(), UTF16ToWideHack(message), &success,
&ignored_result));
return success;
}
void RenderView::showContextMenu(
WebFrame* frame, const WebContextMenuData& data) {
ContextMenuParams params = ContextMenuParams(data);
if (!params.misspelled_word.empty() && RenderThread::current()) {
int misspelled_offset, misspelled_length;
bool spelled_right = RenderThread::current()->spellchecker()->
SpellCheckWord(
params.misspelled_word.c_str(), params.misspelled_word.size(),
spellcheck_provider_->document_tag(),
&misspelled_offset, &misspelled_length,
¶ms.dictionary_suggestions);
if (spelled_right)
params.misspelled_word.clear();
}
// Serializing a GURL longer than content::kMaxURLChars will fail, so don't do
// it. We replace it with an empty GURL so the appropriate items are disabled
// in the context menu.
// TODO(jcivelli): http://crbug.com/45160 This prevents us from saving large
// data encoded images. We should have a way to save them.
if (params.src_url.spec().size() > content::kMaxURLChars)
params.src_url = GURL();
context_menu_node_ = data.node;
Send(new ViewHostMsg_ContextMenu(routing_id_, params));
}
bool RenderView::supportsFullscreen() {
return CommandLine::ForCurrentProcess()->HasSwitch(
switches::kEnableVideoFullscreen);
}
void RenderView::enterFullscreenForNode(const WebKit::WebNode& node) {
NOTIMPLEMENTED();
}
void RenderView::exitFullscreenForNode(const WebKit::WebNode& node) {
NOTIMPLEMENTED();
}
void RenderView::setStatusText(const WebString& text) {
}
void RenderView::UpdateTargetURL(const GURL& url, const GURL& fallback_url) {
GURL latest_url = url.is_empty() ? fallback_url : url;
if (latest_url == target_url_)
return;
// Tell the browser to display a destination link.
if (target_url_status_ == TARGET_INFLIGHT ||
target_url_status_ == TARGET_PENDING) {
// If we have a request in-flight, save the URL to be sent when we
// receive an ACK to the in-flight request. We can happily overwrite
// any existing pending sends.
pending_target_url_ = latest_url;
target_url_status_ = TARGET_PENDING;
} else {
Send(new ViewHostMsg_UpdateTargetURL(routing_id_, page_id_, latest_url));
target_url_ = latest_url;
target_url_status_ = TARGET_INFLIGHT;
}
}
void RenderView::UpdateToggleSpellCheckCommandState() {
bool is_enabled = false;
WebKit::WebNode node = GetFocusedNode();
if (!node.isNull())
is_enabled = IsEditableNode(node);
RenderViewCommandCheckedState checked_state =
RENDER_VIEW_COMMAND_CHECKED_STATE_UNCHECKED;
if (is_enabled && webview()) {
WebFrame* frame = webview()->focusedFrame();
if (frame->isContinuousSpellCheckingEnabled())
checked_state = RENDER_VIEW_COMMAND_CHECKED_STATE_CHECKED;
}
Send(new ViewHostMsg_CommandStateChanged(
routing_id_,
RENDER_VIEW_COMMAND_TOGGLE_SPELL_CHECK,
is_enabled,
checked_state));
}
void RenderView::StartNavStateSyncTimerIfNecessary() {
int delay;
if (send_content_state_immediately_)
delay = 0;
else if (is_hidden())
delay = kDelaySecondsForContentStateSyncHidden;
else
delay = kDelaySecondsForContentStateSync;
if (nav_state_sync_timer_.IsRunning()) {
// The timer is already running. If the delay of the timer maches the amount
// we want to delay by, then return. Otherwise stop the timer so that it
// gets started with the right delay.
if (nav_state_sync_timer_.GetCurrentDelay().InSeconds() == delay)
return;
nav_state_sync_timer_.Stop();
}
nav_state_sync_timer_.Start(
TimeDelta::FromSeconds(delay), this, &RenderView::SyncNavigationState);
}
void RenderView::setMouseOverURL(const WebURL& url) {
mouse_over_url_ = GURL(url);
UpdateTargetURL(mouse_over_url_, focus_url_);
}
void RenderView::setKeyboardFocusURL(const WebURL& url) {
focus_url_ = GURL(url);
UpdateTargetURL(focus_url_, mouse_over_url_);
}
void RenderView::setToolTipText(const WebString& text, WebTextDirection hint) {
Send(new ViewHostMsg_SetTooltipText(routing_id_, UTF16ToWideHack(text),
hint));
}
void RenderView::startDragging(const WebDragData& data,
WebDragOperationsMask mask,
const WebImage& image,
const WebPoint& imageOffset) {
#if WEBKIT_USING_SKIA
SkBitmap bitmap(image.getSkBitmap());
#elif WEBKIT_USING_CG
SkBitmap bitmap = gfx::CGImageToSkBitmap(image.getCGImageRef());
#endif
Send(new DragHostMsg_StartDragging(routing_id_,
WebDropData(data),
mask,
bitmap,
imageOffset));
}
bool RenderView::acceptsLoadDrops() {
return renderer_preferences_.can_accept_load_drops;
}
void RenderView::focusNext() {
Send(new ViewHostMsg_TakeFocus(routing_id_, false));
}
void RenderView::focusPrevious() {
Send(new ViewHostMsg_TakeFocus(routing_id_, true));
}
void RenderView::focusedNodeChanged(const WebNode& node) {
Send(new ViewHostMsg_FocusedNodeChanged(routing_id_, IsEditableNode(node)));
if (WebAccessibilityCache::accessibilityEnabled() && node.isNull()) {
// TODO(ctguil): Make WebKit send this notification.
// When focus is cleared notify accessibility that the document is focused.
postAccessibilityNotification(
webview()->accessibilityObject(),
WebKit::WebAccessibilityNotificationFocusedUIElementChanged);
}
UpdateToggleSpellCheckCommandState();
}
void RenderView::navigateBackForwardSoon(int offset) {
Send(new ViewHostMsg_GoToEntryAtOffset(routing_id_, offset));
}
int RenderView::historyBackListCount() {
return history_list_offset_ < 0 ? 0 : history_list_offset_;
}
int RenderView::historyForwardListCount() {
return history_list_length_ - historyBackListCount() - 1;
}
void RenderView::didUpdateInspectorSetting(const WebString& key,
const WebString& value) {
Send(new ViewHostMsg_UpdateInspectorSetting(routing_id_,
key.utf8(),
value.utf8()));
}
// WebKit::WebWidgetClient ----------------------------------------------------
void RenderView::didFocus() {
// TODO(jcivelli): when https://bugs.webkit.org/show_bug.cgi?id=33389 is fixed
// we won't have to test for user gesture anymore and we can
// move that code back to render_widget.cc
if (webview() && webview()->mainFrame() &&
webview()->mainFrame()->isProcessingUserGesture()) {
Send(new ViewHostMsg_Focus(routing_id_));
}
}
void RenderView::didBlur() {
// TODO(jcivelli): see TODO above in didFocus().
if (webview() && webview()->mainFrame() &&
webview()->mainFrame()->isProcessingUserGesture()) {
Send(new ViewHostMsg_Blur(routing_id_));
}
}
// We are supposed to get a single call to Show for a newly created RenderView
// that was created via RenderView::CreateWebView. So, we wait until this
// point to dispatch the ShowView message.
//
// This method provides us with the information about how to display the newly
// created RenderView (i.e., as a constrained popup or as a new tab).
//
void RenderView::show(WebNavigationPolicy policy) {
DCHECK(!did_show_) << "received extraneous Show call";
DCHECK(opener_id_ != MSG_ROUTING_NONE);
if (did_show_)
return;
did_show_ = true;
if (content::GetContentClient()->renderer()->AllowPopup(creator_url_))
opened_by_user_gesture_ = true;
// Force new windows to a popup if they were not opened with a user gesture.
if (!opened_by_user_gesture_) {
// We exempt background tabs for compat with older versions of Chrome.
// TODO(darin): This seems bogus. These should have a user gesture, so
// we probably don't need this check.
if (policy != WebKit::WebNavigationPolicyNewBackgroundTab)
policy = WebKit::WebNavigationPolicyNewPopup;
}
// NOTE: initial_pos_ may still have its default values at this point, but
// that's okay. It'll be ignored if disposition is not NEW_POPUP, or the
// browser process will impose a default position otherwise.
Send(new ViewHostMsg_ShowView(opener_id_, routing_id_,
NavigationPolicyToDisposition(policy), initial_pos_,
opened_by_user_gesture_));
SetPendingWindowRect(initial_pos_);
}
void RenderView::runModal() {
DCHECK(did_show_) << "should already have shown the view";
// We must keep WebKit's shared timer running in this case in order to allow
// showModalDialog to function properly.
//
// TODO(darin): WebKit should really be smarter about suppressing events and
// timers so that we do not need to manage the shared timer in such a heavy
// handed manner.
//
if (RenderThread::current()) // Will be NULL during unit tests.
RenderThread::current()->DoNotSuspendWebKitSharedTimer();
SendAndRunNestedMessageLoop(new ViewHostMsg_RunModal(routing_id_));
}
// WebKit::WebFrameClient -----------------------------------------------------
WebPlugin* RenderView::createPlugin(WebFrame* frame,
const WebPluginParams& params) {
return content::GetContentClient()->renderer()->CreatePlugin(
this, frame, params);
}
WebWorker* RenderView::createWorker(WebFrame* frame, WebWorkerClient* client) {
WebApplicationCacheHostImpl* appcache_host =
WebApplicationCacheHostImpl::FromFrame(frame);
int appcache_host_id = appcache_host ? appcache_host->host_id() : 0;
return new WebWorkerProxy(client, RenderThread::current(), routing_id_,
appcache_host_id);
}
WebSharedWorker* RenderView::createSharedWorker(
WebFrame* frame, const WebURL& url, const WebString& name,
unsigned long long document_id) {
int route_id = MSG_ROUTING_NONE;
bool exists = false;
bool url_mismatch = false;
ViewHostMsg_CreateWorker_Params params;
params.url = url;
params.is_shared = true;
params.name = name;
params.document_id = document_id;
params.render_view_route_id = routing_id_;
params.route_id = MSG_ROUTING_NONE;
params.parent_appcache_host_id = 0;
params.script_resource_appcache_id = 0;
Send(new ViewHostMsg_LookupSharedWorker(
params, &exists, &route_id, &url_mismatch));
if (url_mismatch) {
return NULL;
} else {
return new WebSharedWorkerProxy(RenderThread::current(),
document_id,
exists,
route_id,
routing_id_);
}
}
WebMediaPlayer* RenderView::createMediaPlayer(
WebFrame* frame, WebMediaPlayerClient* client) {
scoped_ptr<media::MessageLoopFactory> message_loop_factory(
new media::MessageLoopFactoryImpl());
scoped_ptr<media::FilterCollection> collection(
new media::FilterCollection());
// Add in any custom filter factories first.
const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
if (!cmd_line->HasSwitch(switches::kDisableAudio)) {
// Add the chrome specific audio renderer.
collection->AddAudioRenderer(new AudioRendererImpl(audio_message_filter()));
}
if (cmd_line->HasSwitch(switches::kEnableAcceleratedDecoding) &&
!cmd_line->HasSwitch(switches::kDisableAcceleratedCompositing)) {
WebGraphicsContext3DCommandBufferImpl* context =
static_cast<WebGraphicsContext3DCommandBufferImpl*>(
frame->view()->graphicsContext3D());
if (!context)
return NULL;
// Add the hardware video decoder factory.
// TODO(hclam): This will cause the renderer process to crash on context
// lost.
bool ret = context->makeContextCurrent();
CHECK(ret) << "Failed to switch context";
collection->AddVideoDecoder(new IpcVideoDecoder(
MessageLoop::current(), context->context()));
}
scoped_refptr<webkit_glue::WebVideoRenderer> video_renderer;
bool pts_logging = cmd_line->HasSwitch(switches::kEnableVideoLogging);
scoped_refptr<webkit_glue::VideoRendererImpl> renderer(
new webkit_glue::VideoRendererImpl(pts_logging));
collection->AddVideoRenderer(renderer);
video_renderer = renderer;
scoped_ptr<webkit_glue::WebMediaPlayerImpl> result(
new webkit_glue::WebMediaPlayerImpl(client,
collection.release(),
message_loop_factory.release()));
if (!result->Initialize(frame,
cmd_line->HasSwitch(switches::kSimpleDataSource),
video_renderer)) {
return NULL;
}
return result.release();
}
WebApplicationCacheHost* RenderView::createApplicationCacheHost(
WebFrame* frame, WebApplicationCacheHostClient* client) {
return new RendererWebApplicationCacheHostImpl(
FromWebView(frame->view()), client,
RenderThread::current()->appcache_dispatcher()->backend_proxy());
}
WebCookieJar* RenderView::cookieJar(WebFrame* frame) {
return &cookie_jar_;
}
void RenderView::frameDetached(WebFrame* frame) {
FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameDetached(frame));
}
void RenderView::willClose(WebFrame* frame) {
page_load_histograms_.Dump(frame);
FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameWillClose(frame));
}
bool RenderView::allowImages(WebFrame* frame, bool enabled_per_settings) {
if (enabled_per_settings &&
AllowContentType(CONTENT_SETTINGS_TYPE_IMAGES))
return true;
if (IsWhitelistedForContentSettings(frame))
return true;
DidBlockContentType(CONTENT_SETTINGS_TYPE_IMAGES, std::string());
return false; // Other protocols fall through here.
}
bool RenderView::allowPlugins(WebFrame* frame, bool enabled_per_settings) {
return WebFrameClient::allowPlugins(frame, enabled_per_settings);
}
void RenderView::loadURLExternally(
WebFrame* frame, const WebURLRequest& request,
WebNavigationPolicy policy) {
GURL referrer(request.httpHeaderField(WebString::fromUTF8("Referer")));
if (policy == WebKit::WebNavigationPolicyDownload) {
Send(new ViewHostMsg_DownloadUrl(routing_id_, request.url(), referrer));
} else {
OpenURL(request.url(), referrer, policy);
}
}
WebNavigationPolicy RenderView::decidePolicyForNavigation(
WebFrame* frame, const WebURLRequest& request, WebNavigationType type,
const WebNode&, WebNavigationPolicy default_policy, bool is_redirect) {
// Webkit is asking whether to navigate to a new URL.
// This is fine normally, except if we're showing UI from one security
// context and they're trying to navigate to a different context.
const GURL& url = request.url();
// If the browser is interested, then give it a chance to look at top level
// navigations.
if (renderer_preferences_.browser_handles_top_level_requests &&
IsNonLocalTopLevelNavigation(url, frame, type)) {
GURL referrer(request.httpHeaderField(WebString::fromUTF8("Referer")));
// Reset these counters as the RenderView could be reused for the next
// navigation.
page_id_ = -1;
last_page_id_sent_to_browser_ = -1;
OpenURL(url, referrer, default_policy);
return WebKit::WebNavigationPolicyIgnore; // Suppress the load here.
}
// A content initiated navigation may have originated from a link-click,
// script, drag-n-drop operation, etc.
bool is_content_initiated =
NavigationState::FromDataSource(frame->provisionalDataSource())->
is_content_initiated();
GURL old_url(frame->url());
// Detect when we're crossing a permission-based boundary (e.g. into or out of
// an extension or app origin, leaving a WebUI page, etc). We only care about
// top-level navigations within the current tab (as opposed to, for example,
// opening a new window). But we sometimes navigate to about:blank to clear a
// tab, and we want to still allow that.
//
// Note: we do this only for GET requests because our mechanism for switching
// processes only issues GET requests. In particular, POST requests don't
// work, because this mechanism does not preserve form POST data. If it
// becomes necessary to support process switching for POST requests, we will
// need to send the request's httpBody data up to the browser process, and
// issue a special POST navigation in WebKit (via
// FrameLoader::loadFrameRequest). See ResourceDispatcher and WebURLLoaderImpl
// for examples of how to send the httpBody data.
// Note2: We normally don't do this for browser-initiated navigations, since
// it's pointless to tell the browser about navigations it gave us. But
// we do potentially ask the browser to handle a redirect that was originally
// initiated by the browser. See http://crbug.com/70943
//
// TODO(creis): Move this redirect check to the browser process to avoid
// ping-ponging. See http://crbug.com/72380.
if (!frame->parent() && (is_content_initiated || is_redirect) &&
default_policy == WebKit::WebNavigationPolicyCurrentTab &&
request.httpMethod() == "GET" && !url.SchemeIs(chrome::kAboutScheme)) {
bool send_referrer = false;
bool should_fork =
BindingsPolicy::is_web_ui_enabled(enabled_bindings_) ||
frame->isViewSourceModeEnabled() ||
url.SchemeIs(chrome::kViewSourceScheme);
if (!should_fork) {
// Give the embedder a chance.
should_fork = content::GetContentClient()->renderer()->ShouldFork(
frame, url, is_content_initiated, &send_referrer);
}
if (should_fork) {
GURL referrer(request.httpHeaderField(WebString::fromUTF8("Referer")));
OpenURL(url, send_referrer ? referrer : GURL(), default_policy);
return WebKit::WebNavigationPolicyIgnore; // Suppress the load here.
}
}
// Detect when a page is "forking" a new tab that can be safely rendered in
// its own process. This is done by sites like Gmail that try to open links
// in new windows without script connections back to the original page. We
// treat such cases as browser navigations (in which we will create a new
// renderer for a cross-site navigation), rather than WebKit navigations.
//
// We use the following heuristic to decide whether to fork a new page in its
// own process:
// The parent page must open a new tab to about:blank, set the new tab's
// window.opener to null, and then redirect the tab to a cross-site URL using
// JavaScript.
//
// TODO(creis): Deprecate this logic once we can rely on rel=noreferrer
// (see below).
bool is_fork =
// Must start from a tab showing about:blank, which is later redirected.
old_url == GURL(chrome::kAboutBlankURL) &&
// Must be the first real navigation of the tab.
historyBackListCount() < 1 &&
historyForwardListCount() < 1 &&
// The parent page must have set the child's window.opener to null before
// redirecting to the desired URL.
frame->opener() == NULL &&
// Must be a top-level frame.
frame->parent() == NULL &&
// Must not have issued the request from this page.
is_content_initiated &&
// Must be targeted at the current tab.
default_policy == WebKit::WebNavigationPolicyCurrentTab &&
// Must be a JavaScript navigation, which appears as "other".
type == WebKit::WebNavigationTypeOther;
// Recognize if this navigation is from a link with rel=noreferrer and
// target=_blank attributes, in which case the opener will be suppressed. If
// so, it is safe to load cross-site pages in a separate process, so we
// should let the browser handle it.
bool is_noreferrer_and_blank_target =
// Frame should be top level and not yet navigated.
frame->parent() == NULL &&
frame->url().isEmpty() &&
historyBackListCount() < 1 &&
historyForwardListCount() < 1 &&
// Links with rel=noreferrer will have no Referer field, and their
// resulting frame will have its window.opener suppressed.
// TODO(creis): should add a request.httpReferrer() method to help avoid
// typos on the unusual spelling of Referer.
request.httpHeaderField(WebString::fromUTF8("Referer")).isNull() &&
opener_suppressed_ &&
frame->opener() == NULL &&
// Links with target=_blank will have no name.
frame->name().isNull() &&
// Another frame (with a non-empty creator) should have initiated the
// request, targeted at this frame.
!creator_url_.is_empty() &&
is_content_initiated &&
default_policy == WebKit::WebNavigationPolicyCurrentTab &&
type == WebKit::WebNavigationTypeOther;
if (is_fork || is_noreferrer_and_blank_target) {
// Open the URL via the browser, not via WebKit.
OpenURL(url, GURL(), default_policy);
return WebKit::WebNavigationPolicyIgnore;
}
return default_policy;
}
bool RenderView::canHandleRequest(
WebFrame* frame, const WebURLRequest& request) {
// We allow WebKit to think that everything can be handled even though
// browser-side we limit what we load.
return true;
}
WebURLError RenderView::cannotHandleRequestError(
WebFrame* frame, const WebURLRequest& request) {
NOTREACHED(); // Since we said we can handle all requests.
return WebURLError();
}
WebURLError RenderView::cancelledError(
WebFrame* frame, const WebURLRequest& request) {
WebURLError error;
error.domain = WebString::fromUTF8(net::kErrorDomain);
error.reason = net::ERR_ABORTED;
error.unreachableURL = request.url();
return error;
}
void RenderView::unableToImplementPolicyWithError(
WebFrame*, const WebURLError&) {
NOTREACHED(); // Since we said we can handle all requests.
}
void RenderView::willSendSubmitEvent(WebKit::WebFrame* frame,
const WebKit::WebFormElement& form) {
// Some login forms have onSubmit handlers that put a hash of the password
// into a hidden field and then clear the password. (Issue 28910.)
// This method gets called before any of those handlers run, so save away
// a copy of the password in case it gets lost.
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->dataSource());
navigation_state->set_password_form_data(
PasswordFormDomManager::CreatePasswordForm(form));
}
void RenderView::willSubmitForm(WebFrame* frame, const WebFormElement& form) {
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->provisionalDataSource());
if (navigation_state->transition_type() == PageTransition::LINK)
navigation_state->set_transition_type(PageTransition::FORM_SUBMIT);
// Save these to be processed when the ensuing navigation is committed.
WebSearchableFormData web_searchable_form_data(form);
navigation_state->set_searchable_form_url(web_searchable_form_data.url());
navigation_state->set_searchable_form_encoding(
web_searchable_form_data.encoding().utf8());
PasswordForm* password_form_data =
PasswordFormDomManager::CreatePasswordForm(form);
navigation_state->set_password_form_data(password_form_data);
// If the password has been cleared, recover it from the form contents already
// stored by willSendSubmitEvent into the dataSource's NavigationState (as
// opposed to the provisionalDataSource's, which is what we're storing into
// now.)
if (password_form_data && password_form_data->password_value.empty()) {
NavigationState* old_navigation_state =
NavigationState::FromDataSource(frame->dataSource());
if (old_navigation_state) {
PasswordForm* old_form_data = old_navigation_state->password_form_data();
if (old_form_data && old_form_data->action == password_form_data->action)
password_form_data->password_value = old_form_data->password_value;
}
}
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, WillSubmitForm(frame, form));
}
void RenderView::willPerformClientRedirect(
WebFrame* frame, const WebURL& from, const WebURL& to, double interval,
double fire_time) {
FOR_EACH_OBSERVER(
RenderViewObserver, observers_,
WillPerformClientRedirect(frame, from, to, interval, fire_time));
}
void RenderView::didCancelClientRedirect(WebFrame* frame) {
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, DidCancelClientRedirect(frame));
}
void RenderView::didCompleteClientRedirect(
WebFrame* frame, const WebURL& from) {
if (!frame->parent())
completed_client_redirect_src_ = from;
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, DidCompleteClientRedirect(frame, from));
}
void RenderView::didCreateDataSource(WebFrame* frame, WebDataSource* ds) {
// If there are any app-related fetches in progress, they can be cancelled now
// since we have navigated away from the page that created them.
if (!frame->parent()) {
app_icon_fetchers_.clear();
app_definition_fetcher_.reset(NULL);
}
// The rest of RenderView assumes that a WebDataSource will always have a
// non-null NavigationState.
bool content_initiated = !pending_navigation_state_.get();
NavigationState* state = content_initiated ?
NavigationState::CreateContentInitiated() :
pending_navigation_state_.release();
// NavigationState::referred_by_prefetcher_ is true if we are
// navigating from a page that used prefetching using a link on that
// page. We are early enough in the request process here that we
// can still see the NavigationState of the previous page and set
// this value appropriately.
// TODO(gavinp): catch the important case of navigation in a new
// renderer process.
if (webview()) {
if (WebFrame* old_frame = webview()->mainFrame()) {
const WebURLRequest& original_request = ds->originalRequest();
const GURL referrer(
original_request.httpHeaderField(WebString::fromUTF8("Referer")));
if (!referrer.is_empty() &&
NavigationState::FromDataSource(
old_frame->dataSource())->was_prefetcher()) {
for (;old_frame;old_frame = old_frame->traverseNext(false)) {
WebDataSource* old_frame_ds = old_frame->dataSource();
if (old_frame_ds && referrer == GURL(old_frame_ds->request().url())) {
state->set_was_referred_by_prefetcher(true);
break;
}
}
}
}
}
if (content_initiated) {
const WebURLRequest& request = ds->request();
switch (request.cachePolicy()) {
case WebURLRequest::UseProtocolCachePolicy: // normal load.
state->set_load_type(NavigationState::LINK_LOAD_NORMAL);
break;
case WebURLRequest::ReloadIgnoringCacheData: // reload.
state->set_load_type(NavigationState::LINK_LOAD_RELOAD);
break;
case WebURLRequest::ReturnCacheDataElseLoad: // allow stale data.
state->set_load_type(NavigationState::LINK_LOAD_CACHE_STALE_OK);
break;
case WebURLRequest::ReturnCacheDataDontLoad: // Don't re-post.
state->set_load_type(NavigationState::LINK_LOAD_CACHE_ONLY);
break;
}
}
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, DidCreateDataSource(frame, ds));
state->set_was_started_as_prerender(is_prerendering_);
ds->setExtraData(state);
}
void RenderView::didStartProvisionalLoad(WebFrame* frame) {
WebDataSource* ds = frame->provisionalDataSource();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
// Update the request time if WebKit has better knowledge of it.
if (navigation_state->request_time().is_null()) {
double event_time = ds->triggeringEventTime();
if (event_time != 0.0)
navigation_state->set_request_time(Time::FromDoubleT(event_time));
}
// Start time is only set after request time.
navigation_state->set_start_load_time(Time::Now());
bool is_top_most = !frame->parent();
if (is_top_most) {
navigation_gesture_ = frame->isProcessingUserGesture() ?
NavigationGestureUser : NavigationGestureAuto;
// Make sure redirect tracking state is clear for the new load.
completed_client_redirect_src_ = GURL();
} else if (frame->parent()->isLoading()) {
// Take note of AUTO_SUBFRAME loads here, so that we can know how to
// load an error page. See didFailProvisionalLoad.
navigation_state->set_transition_type(PageTransition::AUTO_SUBFRAME);
}
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, DidStartProvisionalLoad(frame));
Send(new ViewHostMsg_DidStartProvisionalLoadForFrame(
routing_id_, frame->identifier(), is_top_most, ds->request().url()));
}
void RenderView::didReceiveServerRedirectForProvisionalLoad(WebFrame* frame) {
if (frame->parent())
return;
// Received a redirect on the main frame.
WebDataSource* data_source = frame->provisionalDataSource();
if (!data_source) {
// Should only be invoked when we have a data source.
NOTREACHED();
return;
}
std::vector<GURL> redirects;
GetRedirectChain(data_source, &redirects);
if (redirects.size() >= 2) {
Send(new ViewHostMsg_DidRedirectProvisionalLoad(routing_id_, page_id_,
redirects[redirects.size() - 2], redirects.back()));
}
}
void RenderView::didFailProvisionalLoad(WebFrame* frame,
const WebURLError& error) {
// Notify the browser that we failed a provisional load with an error.
//
// Note: It is important this notification occur before DidStopLoading so the
// SSL manager can react to the provisional load failure before being
// notified the load stopped.
//
WebDataSource* ds = frame->provisionalDataSource();
DCHECK(ds);
const WebURLRequest& failed_request = ds->request();
FOR_EACH_OBSERVER(
RenderViewObserver, observers_, DidFailProvisionalLoad(frame, error));
bool show_repost_interstitial =
(error.reason == net::ERR_CACHE_MISS &&
EqualsASCII(failed_request.httpMethod(), "POST"));
Send(new ViewHostMsg_DidFailProvisionalLoadWithError(
routing_id_, frame->identifier(), !frame->parent(), error.reason,
error.unreachableURL, show_repost_interstitial));
// Don't display an error page if this is simply a cancelled load. Aside
// from being dumb, WebCore doesn't expect it and it will cause a crash.
if (error.reason == net::ERR_ABORTED)
return;
// Make sure we never show errors in view source mode.
frame->enableViewSourceMode(false);
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
// If this is a failed back/forward/reload navigation, then we need to do a
// 'replace' load. This is necessary to avoid messing up session history.
// Otherwise, we do a normal load, which simulates a 'go' navigation as far
// as session history is concerned.
//
// AUTO_SUBFRAME loads should always be treated as loads that do not advance
// the page id.
//
bool replace =
navigation_state->pending_page_id() != -1 ||
navigation_state->transition_type() == PageTransition::AUTO_SUBFRAME;
// If we failed on a browser initiated request, then make sure that our error
// page load is regarded as the same browser initiated request.
if (!navigation_state->is_content_initiated()) {
pending_navigation_state_.reset(NavigationState::CreateBrowserInitiated(
navigation_state->pending_page_id(),
navigation_state->pending_history_list_offset(),
navigation_state->transition_type(),
navigation_state->request_time()));
}
// Provide the user with a more helpful error page?
if (MaybeLoadAlternateErrorPage(frame, error, replace))
return;
// Fallback to a local error page.
LoadNavigationErrorPage(frame, failed_request, error, std::string(), replace);
}
void RenderView::didReceiveDocumentData(
WebFrame* frame, const char* data, size_t data_len,
bool& prevent_default) {
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->dataSource());
navigation_state->set_use_error_page(false);
}
void RenderView::didCommitProvisionalLoad(WebFrame* frame,
bool is_new_navigation) {
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->dataSource());
navigation_state->set_commit_load_time(Time::Now());
if (is_new_navigation) {
// When we perform a new navigation, we need to update the last committed
// session history entry with state for the page we are leaving.
UpdateSessionHistory(frame);
// We bump our Page ID to correspond with the new session history entry.
page_id_ = next_page_id_++;
// Advance our offset in session history, applying the length limit. There
// is now no forward history.
history_list_offset_++;
if (history_list_offset_ >= chrome::kMaxSessionHistoryEntries)
history_list_offset_ = chrome::kMaxSessionHistoryEntries - 1;
history_list_length_ = history_list_offset_ + 1;
MessageLoop::current()->PostDelayedTask(
FROM_HERE,
page_info_method_factory_.NewRunnableMethod(
&RenderView::CapturePageInfo, page_id_, true),
kDelayForForcedCaptureMs);
} else {
// Inspect the navigation_state on this frame to see if the navigation
// corresponds to a session history navigation... Note: |frame| may or
// may not be the toplevel frame, but for the case of capturing session
// history, the first committed frame suffices. We keep track of whether
// we've seen this commit before so that only capture session history once
// per navigation.
//
// Note that we need to check if the page ID changed. In the case of a
// reload, the page ID doesn't change, and UpdateSessionHistory gets the
// previous URL and the current page ID, which would be wrong.
if (navigation_state->pending_page_id() != -1 &&
navigation_state->pending_page_id() != page_id_ &&
!navigation_state->request_committed()) {
// This is a successful session history navigation!
UpdateSessionHistory(frame);
page_id_ = navigation_state->pending_page_id();
history_list_offset_ = navigation_state->pending_history_list_offset();
}
}
FOR_EACH_OBSERVER(RenderViewObserver, observers_,
DidCommitProvisionalLoad(frame, is_new_navigation));
// Remember that we've already processed this request, so we don't update
// the session history again. We do this regardless of whether this is
// a session history navigation, because if we attempted a session history
// navigation without valid HistoryItem state, WebCore will think it is a
// new navigation.
navigation_state->set_request_committed(true);
UpdateURL(frame);
// If this committed load was initiated by a client redirect, we're
// at the last stop now, so clear it.
completed_client_redirect_src_ = GURL();
// Check whether we have new encoding name.
UpdateEncoding(frame, frame->view()->pageEncoding().utf8());
}
void RenderView::didClearWindowObject(WebFrame* frame) {
if (BindingsPolicy::is_dom_automation_enabled(enabled_bindings_))
BindDOMAutomationController(frame);
GURL frame_url = frame->url();
if (BindingsPolicy::is_web_ui_enabled(enabled_bindings_) &&
(frame_url.SchemeIs(chrome::kChromeUIScheme) ||
frame_url.SchemeIs(chrome::kDataScheme))) {
GetWebUIBindings()->set_message_sender(this);
GetWebUIBindings()->set_routing_id(routing_id_);
GetWebUIBindings()->BindToJavascript(frame, "chrome");
}
if (BindingsPolicy::is_external_host_enabled(enabled_bindings_)) {
GetExternalHostBindings()->set_message_sender(this);
GetExternalHostBindings()->set_routing_id(routing_id_);
GetExternalHostBindings()->BindToJavascript(frame, "externalHost");
}
}
void RenderView::didCreateDocumentElement(WebFrame* frame) {
// Notify the browser about non-blank documents loading in the top frame.
GURL url = frame->url();
if (url.is_valid() && url.spec() != chrome::kAboutBlankURL) {
if (frame == webview()->mainFrame())
Send(new ViewHostMsg_DocumentAvailableInMainFrame(routing_id_));
}
FOR_EACH_OBSERVER(RenderViewObserver, observers_,
DidCreateDocumentElement(frame));
}
void RenderView::didReceiveTitle(WebFrame* frame, const WebString& title) {
UpdateTitle(frame, title);
// Also check whether we have new encoding name.
UpdateEncoding(frame, frame->view()->pageEncoding().utf8());
}
void RenderView::didChangeIcons(WebFrame* frame) {
if (!frame->parent()) {
Send(new ViewHostMsg_UpdateFaviconURL(
routing_id_,
page_id_,
frame->favIconURL()));
}
}
void RenderView::didFinishDocumentLoad(WebFrame* frame) {
WebDataSource* ds = frame->dataSource();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
DCHECK(navigation_state);
navigation_state->set_finish_document_load_time(Time::Now());
Send(new ViewHostMsg_DocumentLoadedInFrame(routing_id_, frame->identifier()));
FOR_EACH_OBSERVER(RenderViewObserver, observers_,
DidFinishDocumentLoad(frame));
// Check whether we have new encoding name.
UpdateEncoding(frame, frame->view()->pageEncoding().utf8());
}
void RenderView::didHandleOnloadEvents(WebFrame* frame) {
if (webview()->mainFrame() == frame) {
Send(new ViewHostMsg_DocumentOnLoadCompletedInMainFrame(routing_id_,
page_id_));
}
}
void RenderView::didFailLoad(WebFrame* frame, const WebURLError& error) {
FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidFailLoad(frame, error));
}
void RenderView::didFinishLoad(WebFrame* frame) {
WebDataSource* ds = frame->dataSource();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
DCHECK(navigation_state);
navigation_state->set_finish_load_time(Time::Now());
FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidFinishLoad(frame));
Send(new ViewHostMsg_DidFinishLoad(routing_id_, frame->identifier()));
}
void RenderView::didNavigateWithinPage(
WebFrame* frame, bool is_new_navigation) {
// If this was a reference fragment navigation that we initiated, then we
// could end up having a non-null pending navigation state. We just need to
// update the ExtraData on the datasource so that others who read the
// ExtraData will get the new NavigationState. Similarly, if we did not
// initiate this navigation, then we need to take care to reset any pre-
// existing navigation state to a content-initiated navigation state.
// DidCreateDataSource conveniently takes care of this for us.
didCreateDataSource(frame, frame->dataSource());
NavigationState* new_state =
NavigationState::FromDataSource(frame->dataSource());
new_state->set_was_within_same_page(true);
didCommitProvisionalLoad(frame, is_new_navigation);
UpdateTitle(frame, frame->view()->mainFrame()->dataSource()->pageTitle());
}
void RenderView::didUpdateCurrentHistoryItem(WebFrame* frame) {
StartNavStateSyncTimerIfNecessary();
}
void RenderView::assignIdentifierToRequest(
WebFrame* frame, unsigned identifier, const WebURLRequest& request) {
// Ignore
}
void RenderView::willSendRequest(
WebFrame* frame, unsigned identifier, WebURLRequest& request,
const WebURLResponse& redirect_response) {
WebFrame* top_frame = frame->top();
if (!top_frame)
top_frame = frame;
WebDataSource* provisional_data_source = top_frame->provisionalDataSource();
WebDataSource* top_data_source = top_frame->dataSource();
WebDataSource* data_source =
provisional_data_source ? provisional_data_source : top_data_source;
GURL request_url(request.url());
GURL new_url;
if (content::GetContentClient()->renderer()->WillSendRequest(
frame, request_url, &new_url)) {
request.setURL(WebURL(new_url));
}
if (data_source) {
NavigationState* state = NavigationState::FromDataSource(data_source);
if (state && state->is_cache_policy_override_set())
request.setCachePolicy(state->cache_policy_override());
}
if (top_data_source) {
NavigationState* state = NavigationState::FromDataSource(top_data_source);
if (state && request.targetType() == WebURLRequest::TargetIsPrefetch)
state->set_was_prefetcher(true);
}
request.setRequestorID(routing_id_);
request.setHasUserGesture(frame->isProcessingUserGesture());
if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kNoReferrers))
request.clearHTTPHeaderField("Referer");
// Temporary metrics, see site_isolation_metrics.h
SiteIsolationMetrics::AddRequest(identifier, request.targetType());
}
void RenderView::didReceiveResponse(
WebFrame* frame, unsigned identifier, const WebURLResponse& response) {
// Temporary metrics, see site_isolation_metrics.h
SiteIsolationMetrics::LogMimeTypeForCrossOriginRequest(frame,
identifier,
response);
// Only do this for responses that correspond to a provisional data source
// of the top-most frame. If we have a provisional data source, then we
// can't have any sub-resources yet, so we know that this response must
// correspond to a frame load.
if (!frame->provisionalDataSource() || frame->parent())
return;
// If we are in view source mode, then just let the user see the source of
// the server's error page.
if (frame->isViewSourceModeEnabled())
return;
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->provisionalDataSource());
CHECK(navigation_state);
int http_status_code = response.httpStatusCode();
// Record page load flags.
navigation_state->set_was_fetched_via_spdy(response.wasFetchedViaSPDY());
navigation_state->set_was_npn_negotiated(response.wasNpnNegotiated());
navigation_state->set_was_alternate_protocol_available(
response.wasAlternateProtocolAvailable());
navigation_state->set_was_fetched_via_proxy(response.wasFetchedViaProxy());
navigation_state->set_http_status_code(http_status_code);
// Whether or not the http status code actually corresponds to an error is
// only checked when the page is done loading, if |use_error_page| is
// still true.
navigation_state->set_use_error_page(true);
}
void RenderView::didFinishResourceLoad(
WebFrame* frame, unsigned identifier) {
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->dataSource());
if (!navigation_state->use_error_page())
return;
// Display error page, if appropriate.
int http_status_code = navigation_state->http_status_code();
if (http_status_code == 404) {
// On 404s, try a remote search page as a fallback.
const GURL& frame_url = frame->url();
const GURL& error_page_url = GetAlternateErrorPageURL(frame_url, HTTP_404);
if (error_page_url.is_valid()) {
WebURLError original_error;
original_error.unreachableURL = frame_url;
navigation_state->set_alt_error_page_fetcher(
new AltErrorPageResourceFetcher(
error_page_url, frame, original_error,
NewCallback(this, &RenderView::AltErrorPageFinished)));
return;
}
}
// Use an internal error page, if we have one for the status code.
if (LocalizedError::HasStrings(LocalizedError::kHttpErrorDomain,
http_status_code)) {
WebURLError error;
error.unreachableURL = frame->url();
error.domain = WebString::fromUTF8(LocalizedError::kHttpErrorDomain);
error.reason = http_status_code;
LoadNavigationErrorPage(frame, frame->dataSource()->request(), error,
std::string(), true);
}
}
void RenderView::didFailResourceLoad(
WebFrame* frame, unsigned identifier, const WebURLError& error) {
// Ignore
}
void RenderView::didLoadResourceFromMemoryCache(
WebFrame* frame, const WebURLRequest& request,
const WebURLResponse& response) {
// Let the browser know we loaded a resource from the memory cache. This
// message is needed to display the correct SSL indicators.
Send(new ViewHostMsg_DidLoadResourceFromMemoryCache(
routing_id_,
request.url(),
response.securityInfo()));
}
void RenderView::didDisplayInsecureContent(WebFrame* frame) {
Send(new ViewHostMsg_DidDisplayInsecureContent(routing_id_));
}
void RenderView::didRunInsecureContent(
WebFrame* frame, const WebSecurityOrigin& origin, const WebURL& target) {
Send(new ViewHostMsg_DidRunInsecureContent(
routing_id_,
origin.toString().utf8(),
target));
}
bool RenderView::allowScript(WebFrame* frame, bool enabled_per_settings) {
if (enabled_per_settings &&
AllowContentType(CONTENT_SETTINGS_TYPE_JAVASCRIPT))
return true;
if (IsWhitelistedForContentSettings(frame))
return true;
return false; // Other protocols fall through here.
}
bool RenderView::allowDatabase(
WebFrame* frame, const WebString& name, const WebString& display_name,
unsigned long estimated_size) {
WebSecurityOrigin origin = frame->securityOrigin();
if (origin.isEmpty())
return false; // Uninitialized document?
bool result;
if (!Send(new DatabaseHostMsg_Allow(routing_id_,
origin.toString().utf8(), name, display_name, estimated_size, &result)))
return false;
Send(new ViewHostMsg_WebDatabaseAccessed(routing_id_,
GURL(origin.toString().utf8()),
name,
display_name,
estimated_size,
!result));
return result;
}
void RenderView::didNotAllowScript(WebKit::WebFrame* frame) {
DidBlockContentType(CONTENT_SETTINGS_TYPE_JAVASCRIPT, std::string());
}
void RenderView::didNotAllowPlugins(WebKit::WebFrame* frame) {
DidBlockContentType(CONTENT_SETTINGS_TYPE_PLUGINS, std::string());
}
void RenderView::didExhaustMemoryAvailableForScript(WebFrame* frame) {
Send(new ViewHostMsg_JSOutOfMemory(routing_id_));
}
void RenderView::didCreateScriptContext(WebFrame* frame) {
content::GetContentClient()->renderer()->DidCreateScriptContext(frame);
}
void RenderView::didDestroyScriptContext(WebFrame* frame) {
content::GetContentClient()->renderer()->DidDestroyScriptContext(frame);
}
void RenderView::didCreateIsolatedScriptContext(WebFrame* frame) {
content::GetContentClient()->renderer()->DidCreateIsolatedScriptContext(
frame);
}
bool RenderView::allowScriptExtension(WebFrame* frame,
const WebString& extension_name,
int extension_group) {
// NULL in unit tests.
if (!RenderThread::current())
return true;
// Note: we prefer the provisional URL here instead of the document URL
// because we might be currently loading an URL into a blank page.
// See http://code.google.com/p/chromium/issues/detail?id=10924
WebDataSource* ds = frame->provisionalDataSource();
if (!ds)
ds = frame->dataSource();
return RenderThread::current()->AllowScriptExtension(
extension_name.utf8(), ds->request().url(), extension_group);
}
void RenderView::logCrossFramePropertyAccess(WebFrame* frame,
WebFrame* target,
bool cross_origin,
const WebString& property_name,
unsigned long long event_id) {
// TODO(johnnyg): track the individual properties and repeat event_ids.
page_load_histograms_.IncrementCrossFramePropertyAccess(cross_origin);
}
void RenderView::didChangeContentsSize(WebFrame* frame, const WebSize& size) {
CheckPreferredSize();
}
void RenderView::CheckPreferredSize() {
// We don't always want to send the change messages over IPC, only if we've
// be put in that mode by getting a |ViewMsg_EnablePreferredSizeChangedMode|
// message.
if (!send_preferred_size_changes_ || !webview())
return;
// WebCore likes to tell us things have changed even when they haven't, so
// cache the width and height and only send the IPC message when we're sure
// they're different.
gfx::Size size(webview()->mainFrame()->contentsPreferredWidth(),
webview()->mainFrame()->documentElementScrollHeight());
// In the presence of zoom, these sizes are still reported as if unzoomed,
// so we need to adjust.
double zoom_factor = WebView::zoomLevelToZoomFactor(webview()->zoomLevel());
size.set_width(static_cast<int>(size.width() * zoom_factor));
size.set_height(static_cast<int>(size.height() * zoom_factor));
if (size == preferred_size_)
return;
preferred_size_ = size;
Send(new ViewHostMsg_DidContentsPreferredSizeChange(routing_id_,
preferred_size_));
}
void RenderView::didChangeScrollOffset(WebFrame* frame) {
StartNavStateSyncTimerIfNecessary();
}
void RenderView::reportFindInPageMatchCount(int request_id, int count,
bool final_update) {
int active_match_ordinal = -1; // -1 = don't update active match ordinal
if (!count)
active_match_ordinal = 0;
IPC::Message* msg = new ViewHostMsg_Find_Reply(
routing_id_,
request_id,
count,
gfx::Rect(),
active_match_ordinal,
final_update);
// If we have a message that has been queued up, then we should just replace
// it. The ACK from the browser will make sure it gets sent when the browser
// wants it.
if (queued_find_reply_message_.get()) {
queued_find_reply_message_.reset(msg);
} else {
// Send the search result over to the browser process.
Send(msg);
}
}
void RenderView::reportFindInPageSelection(int request_id,
int active_match_ordinal,
const WebRect& selection_rect) {
// Send the search result over to the browser process.
Send(new ViewHostMsg_Find_Reply(routing_id_,
request_id,
-1,
selection_rect,
active_match_ordinal,
false));
}
void RenderView::openFileSystem(
WebFrame* frame,
WebFileSystem::Type type,
long long size,
bool create,
WebFileSystemCallbacks* callbacks) {
DCHECK(callbacks);
WebSecurityOrigin origin = frame->securityOrigin();
if (origin.isEmpty()) {
// Uninitialized document?
callbacks->didFail(WebKit::WebFileErrorAbort);
return;
}
ChildThread::current()->file_system_dispatcher()->OpenFileSystem(
GURL(origin.toString()), static_cast<fileapi::FileSystemType>(type),
size, create, new WebFileSystemCallbackDispatcher(callbacks));
}
// webkit_glue::WebPluginPageDelegate -----------------------------------------
webkit::npapi::WebPluginDelegate* RenderView::CreatePluginDelegate(
const FilePath& file_path,
const std::string& mime_type) {
if (!PluginChannelHost::IsListening())
return NULL;
bool in_process_plugin = RenderProcess::current()->UseInProcessPlugins();
if (in_process_plugin) {
#if defined(OS_WIN) // In-proc plugins aren't supported on Linux or Mac.
return webkit::npapi::WebPluginDelegateImpl::Create(
file_path, mime_type, gfx::NativeViewFromId(host_window_));
#else
NOTIMPLEMENTED();
return NULL;
#endif
}
return new WebPluginDelegateProxy(mime_type, AsWeakPtr());
}
void RenderView::CreatedPluginWindow(gfx::PluginWindowHandle window) {
#if defined(USE_X11)
RenderThread::current()->Send(new ViewHostMsg_CreatePluginContainer(
routing_id(), window));
#endif
}
void RenderView::WillDestroyPluginWindow(gfx::PluginWindowHandle window) {
#if defined(USE_X11)
RenderThread::current()->Send(new ViewHostMsg_DestroyPluginContainer(
routing_id(), window));
#endif
CleanupWindowInPluginMoves(window);
}
void RenderView::DidMovePlugin(const webkit::npapi::WebPluginGeometry& move) {
SchedulePluginMove(move);
}
void RenderView::DidStartLoadingForPlugin() {
// TODO(darin): Make is_loading_ be a counter!
didStartLoading();
}
void RenderView::DidStopLoadingForPlugin() {
// TODO(darin): Make is_loading_ be a counter!
didStopLoading();
}
WebCookieJar* RenderView::GetCookieJar() {
return &cookie_jar_;
}
void RenderView::SyncNavigationState() {
if (!webview())
return;
const WebHistoryItem& item = webview()->mainFrame()->currentHistoryItem();
if (item.isNull())
return;
Send(new ViewHostMsg_UpdateState(
routing_id_, page_id_, webkit_glue::HistoryItemToString(item)));
}
bool RenderView::DownloadImage(int id, const GURL& image_url, int image_size) {
// Make sure webview was not shut down.
if (!webview())
return false;
// Create an image resource fetcher and assign it with a call back object.
image_fetchers_.push_back(linked_ptr<ImageResourceFetcher>(
new ImageResourceFetcher(
image_url, webview()->mainFrame(), id, image_size,
NewCallback(this, &RenderView::DidDownloadImage))));
return true;
}
void RenderView::DidDownloadImage(ImageResourceFetcher* fetcher,
const SkBitmap& image) {
// Notify requester of image download status.
Send(new ViewHostMsg_DidDownloadFavicon(routing_id_,
fetcher->id(),
fetcher->image_url(),
image.isNull(),
image));
// Remove the image fetcher from our pending list. We're in the callback from
// ImageResourceFetcher, best to delay deletion.
for (ImageResourceFetcherList::iterator iter = image_fetchers_.begin();
iter != image_fetchers_.end(); ++iter) {
if (iter->get() == fetcher) {
iter->release();
image_fetchers_.erase(iter);
break;
}
}
MessageLoop::current()->DeleteSoon(FROM_HERE, fetcher);
}
void RenderView::OnDownloadFavicon(int id,
const GURL& image_url,
int image_size) {
bool data_image_failed = false;
if (image_url.SchemeIs("data")) {
SkBitmap data_image = ImageFromDataUrl(image_url);
data_image_failed = data_image.empty();
if (!data_image_failed) {
Send(new ViewHostMsg_DidDownloadFavicon(routing_id_, id, image_url, false,
data_image));
}
}
if (data_image_failed ||
!DownloadImage(id, image_url, image_size)) {
Send(new ViewHostMsg_DidDownloadFavicon(routing_id_, id, image_url, true,
SkBitmap()));
}
}
SkBitmap RenderView::ImageFromDataUrl(const GURL& url) const {
std::string mime_type, char_set, data;
if (net::DataURL::Parse(url, &mime_type, &char_set, &data) && !data.empty()) {
// Decode the favicon using WebKit's image decoder.
webkit_glue::ImageDecoder decoder(gfx::Size(kFaviconSize, kFaviconSize));
const unsigned char* src_data =
reinterpret_cast<const unsigned char*>(&data[0]);
return decoder.Decode(src_data, data.size());
}
return SkBitmap();
}
void RenderView::OnGetApplicationInfo(int page_id) {
WebApplicationInfo app_info;
if (page_id == page_id_) {
string16 error;
web_apps::ParseWebAppFromWebDocument(webview()->mainFrame(), &app_info,
&error);
}
// Prune out any data URLs in the set of icons. The browser process expects
// any icon with a data URL to have originated from a favicon. We don't want
// to decode arbitrary data URLs in the browser process. See
// http://b/issue?id=1162972
for (size_t i = 0; i < app_info.icons.size(); ++i) {
if (app_info.icons[i].url.SchemeIs(chrome::kDataScheme)) {
app_info.icons.erase(app_info.icons.begin() + i);
--i;
}
}
Send(new ExtensionHostMsg_DidGetApplicationInfo(
routing_id_, page_id, app_info));
}
GURL RenderView::GetAlternateErrorPageURL(const GURL& failed_url,
ErrorPageType error_type) {
if (failed_url.SchemeIsSecure()) {
// If the URL that failed was secure, then the embedding web page was not
// expecting a network attacker to be able to manipulate its contents. As
// we fetch alternate error pages over HTTP, we would be allowing a network
// attacker to manipulate the contents of the response if we tried to use
// the link doctor here.
return GURL();
}
// Grab the base URL from the browser process.
if (!alternate_error_page_url_.is_valid())
return GURL();
// Strip query params from the failed URL.
GURL::Replacements remove_params;
remove_params.ClearUsername();
remove_params.ClearPassword();
remove_params.ClearQuery();
remove_params.ClearRef();
const GURL url_to_send = failed_url.ReplaceComponents(remove_params);
std::string spec_to_send = url_to_send.spec();
// Notify link doctor of the url truncation by sending of "?" at the end.
if (failed_url.has_query())
spec_to_send.append("?");
// Construct the query params to send to link doctor.
std::string params(alternate_error_page_url_.query());
params.append("&url=");
params.append(EscapeQueryParamValue(spec_to_send, true));
params.append("&sourceid=chrome");
params.append("&error=");
switch (error_type) {
case DNS_ERROR:
params.append("dnserror");
break;
case HTTP_404:
params.append("http404");
break;
case CONNECTION_ERROR:
params.append("connectionfailure");
break;
default:
NOTREACHED() << "unknown ErrorPageType";
}
// OK, build the final url to return.
GURL::Replacements link_doctor_params;
link_doctor_params.SetQueryStr(params);
GURL url = alternate_error_page_url_.ReplaceComponents(link_doctor_params);
return url;
}
WebUIBindings* RenderView::GetWebUIBindings() {
if (!web_ui_bindings_.get()) {
web_ui_bindings_.reset(new WebUIBindings());
}
return web_ui_bindings_.get();
}
ExternalHostBindings* RenderView::GetExternalHostBindings() {
if (!external_host_bindings_.get()) {
external_host_bindings_.reset(new ExternalHostBindings());
}
return external_host_bindings_.get();
}
WebKit::WebPlugin* RenderView::GetWebPluginFromPluginDocument() {
return webview()->mainFrame()->document().to<WebPluginDocument>().plugin();
}
void RenderView::OnFind(int request_id, const string16& search_text,
const WebFindOptions& options) {
WebFrame* main_frame = webview()->mainFrame();
if (main_frame->document().isPluginDocument()) {
if (options.findNext) {
// Just navigate back/forward.
GetWebPluginFromPluginDocument()->selectFindResult(options.forward);
} else {
if (GetWebPluginFromPluginDocument()->startFind(
search_text, options.matchCase, request_id)) {
} else {
// Send "no results".
Send(new ViewHostMsg_Find_Reply(routing_id_,
request_id,
0,
gfx::Rect(),
0,
true));
}
}
return;
}
WebFrame* frame_after_main = main_frame->traverseNext(true);
WebFrame* focused_frame = webview()->focusedFrame();
WebFrame* search_frame = focused_frame; // start searching focused frame.
bool multi_frame = (frame_after_main != main_frame);
// If we have multiple frames, we don't want to wrap the search within the
// frame, so we check here if we only have main_frame in the chain.
bool wrap_within_frame = !multi_frame;
WebRect selection_rect;
bool result = false;
// If something is selected when we start searching it means we cannot just
// increment the current match ordinal; we need to re-generate it.
WebRange current_selection = focused_frame->selectionRange();
do {
result = search_frame->find(
request_id, search_text, options, wrap_within_frame, &selection_rect);
if (!result) {
// don't leave text selected as you move to the next frame.
search_frame->executeCommand(WebString::fromUTF8("Unselect"));
// Find the next frame, but skip the invisible ones.
do {
// What is the next frame to search? (we might be going backwards). Note
// that we specify wrap=true so that search_frame never becomes NULL.
search_frame = options.forward ?
search_frame->traverseNext(true) :
search_frame->traversePrevious(true);
} while (!search_frame->hasVisibleContent() &&
search_frame != focused_frame);
// Make sure selection doesn't affect the search operation in new frame.
search_frame->executeCommand(WebString::fromUTF8("Unselect"));
// If we have multiple frames and we have wrapped back around to the
// focused frame, we need to search it once more allowing wrap within
// the frame, otherwise it will report 'no match' if the focused frame has
// reported matches, but no frames after the focused_frame contain a
// match for the search word(s).
if (multi_frame && search_frame == focused_frame) {
result = search_frame->find(
request_id, search_text, options, true, // Force wrapping.
&selection_rect);
}
}
webview()->setFocusedFrame(search_frame);
} while (!result && search_frame != focused_frame);
if (options.findNext && current_selection.isNull()) {
// Force the main_frame to report the actual count.
main_frame->increaseMatchCount(0, request_id);
} else {
// If nothing is found, set result to "0 of 0", otherwise, set it to
// "-1 of 1" to indicate that we found at least one item, but we don't know
// yet what is active.
int ordinal = result ? -1 : 0; // -1 here means, we might know more later.
int match_count = result ? 1 : 0; // 1 here means possibly more coming.
// If we find no matches then this will be our last status update.
// Otherwise the scoping effort will send more results.
bool final_status_update = !result;
// Send the search result over to the browser process.
Send(new ViewHostMsg_Find_Reply(routing_id_,
request_id,
match_count,
selection_rect,
ordinal,
final_status_update));
// Scoping effort begins, starting with the mainframe.
search_frame = main_frame;
main_frame->resetMatchCount();
do {
// Cancel all old scoping requests before starting a new one.
search_frame->cancelPendingScopingEffort();
// We don't start another scoping effort unless at least one match has
// been found.
if (result) {
// Start new scoping request. If the scoping function determines that it
// needs to scope, it will defer until later.
search_frame->scopeStringMatches(request_id,
search_text,
options,
true); // reset the tickmarks
}
// Iterate to the next frame. The frame will not necessarily scope, for
// example if it is not visible.
search_frame = search_frame->traverseNext(true);
} while (search_frame != main_frame);
}
}
void RenderView::OnStopFinding(const ViewMsg_StopFinding_Params& params) {
WebView* view = webview();
if (!view)
return;
WebDocument doc = view->mainFrame()->document();
if (doc.isPluginDocument()) {
GetWebPluginFromPluginDocument()->stopFind();
return;
}
bool clear_selection =
params.action == ViewMsg_StopFinding_Params::kClearSelection;
if (clear_selection)
view->focusedFrame()->executeCommand(WebString::fromUTF8("Unselect"));
WebFrame* frame = view->mainFrame();
while (frame) {
frame->stopFinding(clear_selection);
frame = frame->traverseNext(false);
}
if (params.action == ViewMsg_StopFinding_Params::kActivateSelection) {
WebFrame* focused_frame = view->focusedFrame();
if (focused_frame) {
WebDocument doc = focused_frame->document();
if (!doc.isNull()) {
WebNode node = doc.focusedNode();
if (!node.isNull())
node.simulateClick();
}
}
}
}
void RenderView::OnFindReplyAck() {
// Check if there is any queued up request waiting to be sent.
if (queued_find_reply_message_.get()) {
// Send the search result over to the browser process.
Send(queued_find_reply_message_.release());
}
}
bool RenderView::AllowContentType(ContentSettingsType settings_type) {
// CONTENT_SETTING_ASK is only valid for cookies.
return current_content_settings_.settings[settings_type] !=
CONTENT_SETTING_BLOCK;
}
void RenderView::DidBlockContentType(ContentSettingsType settings_type,
const std::string& resource_identifier) {
if (!content_blocked_[settings_type]) {
content_blocked_[settings_type] = true;
Send(new ViewHostMsg_ContentBlocked(routing_id_, settings_type,
resource_identifier));
}
}
void RenderView::ClearBlockedContentSettings() {
for (size_t i = 0; i < arraysize(content_blocked_); ++i)
content_blocked_[i] = false;
}
WebPlugin* RenderView::CreatePepperPlugin(
WebFrame* frame,
const WebPluginParams& params,
const FilePath& path,
webkit::ppapi::PluginModule* pepper_module) {
return new webkit::ppapi::WebPluginImpl(
pepper_module, params, pepper_delegate_.AsWeakPtr());
}
WebPlugin* RenderView::CreateNPAPIPlugin(
WebFrame* frame,
const WebPluginParams& params,
const FilePath& path,
const std::string& mime_type) {
return new webkit::npapi::WebPluginImpl(
frame, params, path, mime_type, AsWeakPtr());
}
void RenderView::OnZoom(PageZoom::Function function) {
if (!webview()) // Not sure if this can happen, but no harm in being safe.
return;
webview()->hidePopups();
double old_zoom_level = webview()->zoomLevel();
double zoom_level;
if (function == PageZoom::RESET) {
zoom_level = 0;
} else if (static_cast<int>(old_zoom_level) == old_zoom_level) {
// Previous zoom level is a whole number, so just increment/decrement.
zoom_level = old_zoom_level + function;
} else {
// Either the user hit the zoom factor limit and thus the zoom level is now
// not a whole number, or a plugin changed it to a custom value. We want
// to go to the next whole number so that the user can always get back to
// 100% with the keyboard/menu.
if ((old_zoom_level > 1 && function > 0) ||
(old_zoom_level < 1 && function < 0)) {
zoom_level = static_cast<int>(old_zoom_level + function);
} else {
// We're going towards 100%, so first go to the next whole number.
zoom_level = static_cast<int>(old_zoom_level);
}
}
webview()->setZoomLevel(false, zoom_level);
zoomLevelChanged();
}
void RenderView::OnSetZoomLevel(double zoom_level) {
// Don't set zoom level for full-page plugin since they don't use the same
// zoom settings.
if (webview()->mainFrame()->document().isPluginDocument())
return;
webview()->hidePopups();
webview()->setZoomLevel(false, zoom_level);
zoomLevelChanged();
}
void RenderView::OnSetContentSettingsForLoadingURL(
const GURL& url,
const ContentSettings& content_settings) {
host_content_settings_[url] = content_settings;
}
void RenderView::OnSetZoomLevelForLoadingURL(const GURL& url,
double zoom_level) {
host_zoom_levels_[url] = zoom_level;
}
void RenderView::OnSetPageEncoding(const std::string& encoding_name) {
webview()->setPageEncoding(WebString::fromUTF8(encoding_name));
}
void RenderView::OnResetPageEncodingToDefault() {
WebString no_encoding;
webview()->setPageEncoding(no_encoding);
}
WebFrame* RenderView::GetChildFrame(const std::wstring& xpath) const {
if (xpath.empty())
return webview()->mainFrame();
// xpath string can represent a frame deep down the tree (across multiple
// frame DOMs).
// Example, /html/body/table/tbody/tr/td/iframe\n/frameset/frame[0]
// should break into 2 xpaths
// /html/body/table/tbody/tr/td/iframe & /frameset/frame[0]
WebFrame* frame = webview()->mainFrame();
std::wstring xpath_remaining = xpath;
while (!xpath_remaining.empty()) {
std::wstring::size_type delim_pos = xpath_remaining.find_first_of(L'\n');
std::wstring xpath_child;
if (delim_pos != std::wstring::npos) {
xpath_child = xpath_remaining.substr(0, delim_pos);
xpath_remaining.erase(0, delim_pos + 1);
} else {
xpath_remaining.swap(xpath_child);
}
frame = frame->findChildByExpression(WideToUTF16Hack(xpath_child));
}
return frame;
}
WebNode RenderView::GetFocusedNode() const {
if (!webview())
return WebNode();
WebFrame* focused_frame = webview()->focusedFrame();
if (focused_frame) {
WebDocument doc = focused_frame->document();
if (!doc.isNull())
return doc.focusedNode();
}
return WebNode();
}
void RenderView::EvaluateScript(const string16& frame_xpath,
const string16& script,
int id,
bool notify_result) {
v8::Handle<v8::Value> result;
WebFrame* web_frame = GetChildFrame(UTF16ToWideHack(frame_xpath));
if (web_frame)
result = web_frame->executeScriptAndReturnValue(WebScriptSource(script));
if (notify_result) {
ListValue list;
if (web_frame) {
v8::HandleScope handle_scope;
v8::Local<v8::Context> context = web_frame->mainWorldScriptContext();
v8::Context::Scope context_scope(context);
list.Set(0, ConvertV8Value(result));
} else {
list.Set(0, Value::CreateNullValue());
}
Send(new ViewHostMsg_ScriptEvalResponse(routing_id_, id, list));
}
}
void RenderView::InsertCSS(const std::wstring& frame_xpath,
const std::string& css,
const std::string& id) {
WebFrame* web_frame = GetChildFrame(frame_xpath);
if (!web_frame)
return;
web_frame->insertStyleText(WebString::fromUTF8(css), WebString::fromUTF8(id));
}
void RenderView::OnScriptEvalRequest(const string16& frame_xpath,
const string16& jscript,
int id,
bool notify_result) {
EvaluateScript(frame_xpath, jscript, id, notify_result);
}
void RenderView::OnCSSInsertRequest(const std::wstring& frame_xpath,
const std::string& css,
const std::string& id) {
InsertCSS(frame_xpath, css, id);
// Notify RenderViewHost that css has been inserted into the frame.
Send(new ViewHostMsg_OnCSSInserted(routing_id_));
}
void RenderView::OnAllowBindings(int enabled_bindings_flags) {
enabled_bindings_ |= enabled_bindings_flags;
}
void RenderView::OnSetWebUIProperty(const std::string& name,
const std::string& value) {
DCHECK(BindingsPolicy::is_web_ui_enabled(enabled_bindings_));
GetWebUIBindings()->SetProperty(name, value);
}
void RenderView::OnReservePageIDRange(int size_of_range) {
next_page_id_ += size_of_range + 1;
}
void RenderView::OnDragTargetDragEnter(const WebDropData& drop_data,
const gfx::Point& client_point,
const gfx::Point& screen_point,
WebDragOperationsMask ops) {
WebDragOperation operation = webview()->dragTargetDragEnter(
drop_data.ToDragData(),
0, // drag identity, unused
client_point,
screen_point,
ops);
Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
}
void RenderView::OnDragTargetDragOver(const gfx::Point& client_point,
const gfx::Point& screen_point,
WebDragOperationsMask ops) {
WebDragOperation operation = webview()->dragTargetDragOver(
client_point,
screen_point,
ops);
Send(new DragHostMsg_UpdateDragCursor(routing_id_, operation));
}
void RenderView::OnDragTargetDragLeave() {
webview()->dragTargetDragLeave();
}
void RenderView::OnDragTargetDrop(const gfx::Point& client_point,
const gfx::Point& screen_point) {
webview()->dragTargetDrop(client_point, screen_point);
}
void RenderView::OnDragSourceEndedOrMoved(const gfx::Point& client_point,
const gfx::Point& screen_point,
bool ended,
WebDragOperation op) {
if (ended) {
webview()->dragSourceEndedAt(client_point, screen_point, op);
} else {
webview()->dragSourceMovedTo(client_point, screen_point, op);
}
}
void RenderView::OnDragSourceSystemDragEnded() {
webview()->dragSourceSystemDragEnded();
}
void RenderView::OnUpdateWebPreferences(const WebPreferences& prefs) {
webkit_preferences_ = prefs;
webkit_preferences_.Apply(webview());
}
void RenderView::OnSetAltErrorPageURL(const GURL& url) {
alternate_error_page_url_ = url;
}
void RenderView::OnCustomContextMenuAction(
const webkit_glue::CustomContextMenuContext& custom_context,
unsigned action) {
if (custom_context.is_pepper_menu)
pepper_delegate_.OnCustomContextMenuAction(custom_context, action);
else
webview()->performCustomContextMenuAction(action);
}
void RenderView::OnInstallMissingPlugin() {
// This could happen when the first default plugin is deleted.
if (first_default_plugin_)
first_default_plugin_->InstallMissingPlugin();
}
void RenderView::OnDisplayPrerenderedPage() {
DCHECK(is_prerendering_);
is_prerendering_ = false;
// Update NavigationState for histograms.
WebDataSource* ds = webview()->mainFrame()->dataSource();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
navigation_state->set_prerendered_page_display_time(Time::Now());
// If there is a provisional data source, update its NavigationState, too.
WebDataSource* provisional_ds =
webview()->mainFrame()->provisionalDataSource();
if (provisional_ds) {
NavigationState* provisional_navigation_state =
NavigationState::FromDataSource(provisional_ds);
if (provisional_navigation_state) {
provisional_navigation_state->set_prerendered_page_display_time(
Time::Now());
}
}
}
void RenderView::OnFileChooserResponse(const std::vector<FilePath>& paths) {
// This could happen if we navigated to a different page before the user
// closed the chooser.
if (file_chooser_completions_.empty())
return;
WebVector<WebString> ws_file_names(paths.size());
for (size_t i = 0; i < paths.size(); ++i)
ws_file_names[i] = webkit_glue::FilePathToWebString(paths[i]);
if (file_chooser_completions_.front()->completion)
file_chooser_completions_.front()->completion->didChooseFile(ws_file_names);
file_chooser_completions_.pop_front();
// If there are more pending file chooser requests, schedule one now.
if (!file_chooser_completions_.empty()) {
Send(new ViewHostMsg_RunFileChooser(routing_id_,
file_chooser_completions_.front()->params));
}
}
void RenderView::OnEnableViewSourceMode() {
if (!webview())
return;
WebFrame* main_frame = webview()->mainFrame();
if (!main_frame)
return;
main_frame->enableViewSourceMode(true);
}
void RenderView::OnEnablePreferredSizeChangedMode(int flags) {
DCHECK(flags != kPreferredSizeNothing);
if (send_preferred_size_changes_)
return;
send_preferred_size_changes_ = true;
// WebKit doesn't send a notification of the effective height of the page
// changes, so poll for it.
// TODO: Add a notification for this to WebKit, remove polling. After that's
// done, rename kPreferredSizeHeightThisIsSlow to kPreferredSizeHeight.
// http://crbug.com/44850
if (flags & kPreferredSizeHeightThisIsSlow) {
preferred_size_change_timer_.Start(TimeDelta::FromMilliseconds(10), this,
&RenderView::CheckPreferredSize);
}
}
void RenderView::OnDisableScrollbarsForSmallWindows(
const gfx::Size& disable_scrollbar_size_limit) {
disable_scrollbars_size_limit_ = disable_scrollbar_size_limit;
}
void RenderView::OnSetRendererPrefs(const RendererPreferences& renderer_prefs) {
renderer_preferences_ = renderer_prefs;
UpdateFontRenderingFromRendererPrefs();
#if defined(TOOLKIT_USES_GTK)
WebColorName name = WebKit::WebColorWebkitFocusRingColor;
WebKit::setNamedColors(&name, &renderer_prefs.focus_ring_color, 1);
WebKit::setCaretBlinkInterval(renderer_prefs.caret_blink_interval);
gfx::NativeThemeLinux::instance()->SetScrollbarColors(
renderer_prefs.thumb_inactive_color,
renderer_prefs.thumb_active_color,
renderer_prefs.track_color);
if (webview()) {
webview()->setScrollbarColors(
renderer_prefs.thumb_inactive_color,
renderer_prefs.thumb_active_color,
renderer_prefs.track_color);
webview()->setSelectionColors(
renderer_prefs.active_selection_bg_color,
renderer_prefs.active_selection_fg_color,
renderer_prefs.inactive_selection_bg_color,
renderer_prefs.inactive_selection_fg_color);
webview()->themeChanged();
}
#endif
}
void RenderView::OnMediaPlayerActionAt(const gfx::Point& location,
const WebMediaPlayerAction& action) {
if (webview())
webview()->performMediaPlayerAction(action, location);
}
void RenderView::OnNotifyRendererViewType(ViewType::Type type) {
view_type_ = type;
}
void RenderView::OnUpdateBrowserWindowId(int window_id) {
browser_window_id_ = window_id;
}
void RenderView::OnEnableAccessibility() {
if (WebAccessibilityCache::accessibilityEnabled())
return;
WebAccessibilityCache::enableAccessibility();
if (webview()) {
// It's possible that the webview has already loaded a webpage without
// accessibility being enabled. Initialize the browser's cached
// accessibility tree by sending it a 'load complete' notification.
postAccessibilityNotification(
webview()->accessibilityObject(),
WebKit::WebAccessibilityNotificationLoadComplete);
}
}
void RenderView::OnSetAccessibilityFocus(int acc_obj_id) {
if (!accessibility_.get())
return;
WebAccessibilityObject obj = accessibility_->getObjectById(acc_obj_id);
WebAccessibilityObject root = webview()->accessibilityObject();
if (!obj.isValid() || !root.isValid())
return;
// By convention, calling SetFocus on the root of the tree should clear the
// current focus. Otherwise set the focus to the new node.
if (accessibility_->addOrGetId(obj) == accessibility_->addOrGetId(root))
webview()->clearFocusedNode();
else
obj.setFocused(true);
}
void RenderView::OnAccessibilityDoDefaultAction(int acc_obj_id) {
if (!accessibility_.get())
return;
WebAccessibilityObject obj = accessibility_->getObjectById(acc_obj_id);
if (!obj.isValid())
return;
obj.performDefaultAction();
}
void RenderView::OnAccessibilityNotificationsAck() {
DCHECK(accessibility_ack_pending_);
accessibility_ack_pending_ = false;
SendPendingAccessibilityNotifications();
}
void RenderView::OnGetAllSavableResourceLinksForCurrentPage(
const GURL& page_url) {
// Prepare list to storage all savable resource links.
std::vector<GURL> resources_list;
std::vector<GURL> referrers_list;
std::vector<GURL> frames_list;
webkit_glue::SavableResourcesResult result(&resources_list,
&referrers_list,
&frames_list);
if (!webkit_glue::GetAllSavableResourceLinksForCurrentPage(
webview(),
page_url,
&result,
chrome::kSavableSchemes)) {
// If something is wrong when collecting all savable resource links,
// send empty list to embedder(browser) to tell it failed.
referrers_list.clear();
resources_list.clear();
frames_list.clear();
}
// Send result of all savable resource links to embedder.
Send(new ViewHostMsg_SendCurrentPageAllSavableResourceLinks(routing_id_,
resources_list,
referrers_list,
frames_list));
}
void RenderView::OnGetSerializedHtmlDataForCurrentPageWithLocalLinks(
const std::vector<GURL>& links,
const std::vector<FilePath>& local_paths,
const FilePath& local_directory_name) {
// Convert std::vector of GURLs to WebVector<WebURL>
WebVector<WebURL> weburl_links(links);
// Convert std::vector of std::strings to WebVector<WebString>
WebVector<WebString> webstring_paths(local_paths.size());
for (size_t i = 0; i < local_paths.size(); i++)
webstring_paths[i] = webkit_glue::FilePathToWebString(local_paths[i]);
WebPageSerializer::serialize(webview()->mainFrame(),
true, this, weburl_links, webstring_paths,
webkit_glue::FilePathToWebString(
local_directory_name));
}
void RenderView::didSerializeDataForFrame(const WebURL& frame_url,
const WebCString& data,
WebPageSerializerClient::PageSerializationStatus status) {
Send(new ViewHostMsg_SendSerializedHtmlData(
routing_id_,
frame_url,
data.data(),
static_cast<int32>(status)));
}
void RenderView::OnShouldClose() {
bool should_close = webview()->dispatchBeforeUnloadEvent();
Send(new ViewHostMsg_ShouldClose_ACK(routing_id_, should_close));
}
void RenderView::OnClosePage(const ViewMsg_ClosePage_Params& params) {
// TODO(creis): We'd rather use webview()->Close() here, but that currently
// sets the WebView's delegate_ to NULL, preventing any JavaScript dialogs
// in the onunload handler from appearing. For now, we're bypassing that and
// calling the FrameLoader's CloseURL method directly. This should be
// revisited to avoid having two ways to close a page. Having a single way
// to close that can run onunload is also useful for fixing
// http://b/issue?id=753080.
// TODO(davemoore) This code should be removed once willClose() gets
// called when a page is destroyed. page_load_histograms_.Dump() is safe
// to call multiple times for the same frame, but it will simplify things.
page_load_histograms_.Dump(webview()->mainFrame());
page_load_histograms_.ResetCrossFramePropertyAccess();
webview()->dispatchUnloadEvent();
// Just echo back the params in the ACK.
Send(new ViewHostMsg_ClosePage_ACK(routing_id_, params));
}
void RenderView::OnThemeChanged() {
#if defined(OS_WIN)
gfx::NativeThemeWin::instance()->CloseHandles();
if (webview())
webview()->themeChanged();
#else // defined(OS_WIN)
// TODO(port): we don't support theming on non-Windows platforms yet
NOTIMPLEMENTED();
#endif
}
void RenderView::OnHandleMessageFromExternalHost(const std::string& message,
const std::string& origin,
const std::string& target) {
if (message.empty())
return;
GetExternalHostBindings()->ForwardMessageFromExternalHost(message, origin,
target);
}
void RenderView::OnDisassociateFromPopupCount() {
if (decrement_shared_popup_at_destruction_)
shared_popup_counter_->data--;
shared_popup_counter_ = new SharedRenderViewCounter(0);
decrement_shared_popup_at_destruction_ = false;
}
bool RenderView::MaybeLoadAlternateErrorPage(WebFrame* frame,
const WebURLError& error,
bool replace) {
// We only show alternate error pages in the main frame. They are
// intended to assist the user when navigating, so there is not much
// value in showing them for failed subframes. Ideally, we would be
// able to use the TYPED transition type for this, but that flag is
// not preserved across page reloads.
if (frame->parent())
return false;
// Use the alternate error page service if this is a DNS failure or
// connection failure.
int ec = error.reason;
if (ec != net::ERR_NAME_NOT_RESOLVED &&
ec != net::ERR_CONNECTION_FAILED &&
ec != net::ERR_CONNECTION_REFUSED &&
ec != net::ERR_ADDRESS_UNREACHABLE &&
ec != net::ERR_CONNECTION_TIMED_OUT)
return false;
const GURL& error_page_url = GetAlternateErrorPageURL(error.unreachableURL,
ec == net::ERR_NAME_NOT_RESOLVED ? DNS_ERROR : CONNECTION_ERROR);
if (!error_page_url.is_valid())
return false;
// Load an empty page first so there is an immediate response to the error,
// and then kick off a request for the alternate error page.
frame->loadHTMLString(std::string(),
GURL(chrome::kUnreachableWebDataURL),
error.unreachableURL,
replace);
// Now, create a fetcher for the error page and associate it with the data
// source we just created via the LoadHTMLString call. That way if another
// navigation occurs, the fetcher will get destroyed.
NavigationState* navigation_state =
NavigationState::FromDataSource(frame->provisionalDataSource());
navigation_state->set_alt_error_page_fetcher(
new AltErrorPageResourceFetcher(
error_page_url, frame, error,
NewCallback(this, &RenderView::AltErrorPageFinished)));
return true;
}
void RenderView::AltErrorPageFinished(WebFrame* frame,
const WebURLError& original_error,
const std::string& html) {
// Here, we replace the blank page we loaded previously.
// If we failed to download the alternate error page, LoadNavigationErrorPage
// will simply display a default error page.
LoadNavigationErrorPage(frame, WebURLRequest(), original_error, html, true);
}
void RenderView::OnMoveOrResizeStarted() {
if (webview())
webview()->hidePopups();
}
void RenderView::OnResize(const gfx::Size& new_size,
const gfx::Rect& resizer_rect) {
if (webview()) {
webview()->hidePopups();
if (send_preferred_size_changes_) {
webview()->mainFrame()->setCanHaveScrollbars(
should_display_scrollbars(new_size.width(), new_size.height()));
}
}
RenderWidget::OnResize(new_size, resizer_rect);
}
void RenderView::DidInitiatePaint() {
// Notify the pepper plugins that we started painting.
pepper_delegate_.ViewInitiatedPaint();
}
void RenderView::DidFlushPaint() {
// Notify any pepper plugins that we painted. This will call into the plugin,
// and we it may ask to close itself as a result. This will, in turn, modify
// our set, possibly invalidating the iterator. So we iterate on a copy that
// won't change out from under us.
pepper_delegate_.ViewFlushedPaint();
WebFrame* main_frame = webview()->mainFrame();
// If we have a provisional frame we are between the start and commit stages
// of loading and we don't want to save stats.
if (!main_frame->provisionalDataSource()) {
WebDataSource* ds = main_frame->dataSource();
NavigationState* navigation_state = NavigationState::FromDataSource(ds);
DCHECK(navigation_state);
// TODO(jar): The following code should all be inside a method, probably in
// NavigatorState.
Time now = Time::Now();
if (navigation_state->first_paint_time().is_null()) {
navigation_state->set_first_paint_time(now);
}
if (navigation_state->first_paint_after_load_time().is_null() &&
!navigation_state->finish_load_time().is_null()) {
navigation_state->set_first_paint_after_load_time(now);
}
}
}
webkit::ppapi::PluginInstance* RenderView::GetBitmapForOptimizedPluginPaint(
const gfx::Rect& paint_bounds,
TransportDIB** dib,
gfx::Rect* location,
gfx::Rect* clip) {
return pepper_delegate_.GetBitmapForOptimizedPluginPaint(
paint_bounds, dib, location, clip);
}
gfx::Point RenderView::GetScrollOffset() {
WebKit::WebSize scroll_offset = webview()->mainFrame()->scrollOffset();
return gfx::Point(scroll_offset.width, scroll_offset.height);
}
void RenderView::OnClearFocusedNode() {
if (webview())
webview()->clearFocusedNode();
}
void RenderView::OnSetBackground(const SkBitmap& background) {
if (webview())
webview()->setIsTransparent(!background.empty());
SetBackground(background);
}
void RenderView::OnSetActive(bool active) {
if (webview())
webview()->setIsActive(active);
#if defined(OS_MACOSX)
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->SetWindowFocus(active);
}
#endif
}
#if defined(OS_MACOSX)
void RenderView::OnSetWindowVisibility(bool visible) {
// Inform plugins that their container has changed visibility.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->SetContainerVisibility(visible);
}
}
void RenderView::OnWindowFrameChanged(const gfx::Rect& window_frame,
const gfx::Rect& view_frame) {
// Inform plugins that their window's frame has changed.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->WindowFrameChanged(window_frame, view_frame);
}
}
void RenderView::OnPluginImeCompositionCompleted(const string16& text,
int plugin_id) {
// WebPluginDelegateProxy is responsible for figuring out if this event
// applies to it or not, so inform all the delegates.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->ImeCompositionCompleted(text, plugin_id);
}
}
#endif // OS_MACOSX
void RenderView::postAccessibilityNotification(
const WebAccessibilityObject& obj,
WebAccessibilityNotification notification) {
if (!accessibility_.get() && webview()) {
// Load complete should be our first notification sent.
// TODO(ctguil): Investigate if a different notification is a WebCore bug.
if (notification != WebKit::WebAccessibilityNotificationLoadComplete)
return;
// Create and initialize our accessibility cache
accessibility_.reset(WebAccessibilityCache::create());
accessibility_->initialize(webview());
}
if (!accessibility_->isCached(obj)) {
// The browser doesn't know about objects that are not in the cache. Send a
// children change for the first accestor that actually is in the cache.
WebAccessibilityObject parent = obj;
while (parent.isValid() && !accessibility_->isCached(parent))
parent = parent.parentObject();
DCHECK(parent.isValid() && accessibility_->isCached(parent));
if (!parent.isValid())
return;
postAccessibilityNotification(
parent, WebKit::WebAccessibilityNotificationChildrenChanged);
// The parent's children change takes care of the child's children change.
if (notification == WebKit::WebAccessibilityNotificationChildrenChanged)
return;
}
// Add the accessibility object to our cache and ensure it's valid.
RendererAccessibilityNotification acc_notification;
acc_notification.id = accessibility_->addOrGetId(obj);
acc_notification.type = notification;
if (acc_notification.id < 0)
return;
ViewHostMsg_AccessibilityNotification_Type::Value temp;
if (!WebAccessibilityNotificationToViewHostMsg(notification, &temp))
return;
// Discard duplicate accessibility notifications.
for (uint32 i = 0; i < pending_accessibility_notifications_.size(); i++) {
if (pending_accessibility_notifications_[i].id == acc_notification.id &&
pending_accessibility_notifications_[i].type == acc_notification.type) {
return;
}
}
pending_accessibility_notifications_.push_back(acc_notification);
if (!accessibility_ack_pending_ && accessibility_method_factory_.empty()) {
// When no accessibility notifications are in-flight post a task to send
// the notifications to the browser. We use PostTask so that we can queue
// up additional notifications.
MessageLoop::current()->PostTask(
FROM_HERE,
accessibility_method_factory_.NewRunnableMethod(
&RenderView::SendPendingAccessibilityNotifications));
}
}
void RenderView::OnSetEditCommandsForNextKeyEvent(
const EditCommands& edit_commands) {
edit_commands_ = edit_commands;
}
void RenderView::Close() {
// We need to grab a pointer to the doomed WebView before we destroy it.
WebView* doomed = webview();
RenderWidget::Close();
g_view_map.Get().erase(doomed);
}
void RenderView::DidHandleKeyEvent() {
edit_commands_.clear();
}
void RenderView::DidHandleMouseEvent(const WebKit::WebMouseEvent& event) {
FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleMouseEvent(event));
}
void RenderView::OnWasHidden() {
RenderWidget::OnWasHidden();
if (webview()) {
webview()->settings()->setMinimumTimerInterval(
webkit_glue::kBackgroundTabTimerInterval);
}
#if defined(OS_MACOSX)
// Inform plugins that their container is no longer visible.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->SetContainerVisibility(false);
}
#endif // OS_MACOSX
}
void RenderView::OnWasRestored(bool needs_repainting) {
RenderWidget::OnWasRestored(needs_repainting);
if (webview()) {
webview()->settings()->setMinimumTimerInterval(
webkit_glue::kForegroundTabTimerInterval);
}
#if defined(OS_MACOSX)
// Inform plugins that their container is now visible.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
(*plugin_it)->SetContainerVisibility(true);
}
#endif // OS_MACOSX
}
void RenderView::OnSetFocus(bool enable) {
RenderWidget::OnSetFocus(enable);
if (webview() && webview()->isActive()) {
// Notify all NPAPI plugins.
std::set<WebPluginDelegateProxy*>::iterator plugin_it;
for (plugin_it = plugin_delegates_.begin();
plugin_it != plugin_delegates_.end(); ++plugin_it) {
#if defined(OS_MACOSX)
// RenderWidget's call to setFocus can cause the underlying webview's
// activation state to change just like a call to setIsActive.
if (enable)
(*plugin_it)->SetWindowFocus(true);
#endif
(*plugin_it)->SetContentAreaFocus(enable);
}
// Notify all Pepper plugins.
pepper_delegate_.OnSetFocus(enable);
}
}
#if defined(OS_MACOSX)
void RenderView::PluginFocusChanged(bool focused, int plugin_id) {
IPC::Message* msg = new ViewHostMsg_PluginFocusChanged(routing_id(),
focused, plugin_id);
Send(msg);
}
void RenderView::StartPluginIme() {
IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
// This message can be sent during event-handling, and needs to be delivered
// within that context.
msg->set_unblock(true);
Send(msg);
}
gfx::PluginWindowHandle RenderView::AllocateFakePluginWindowHandle(
bool opaque, bool root) {
gfx::PluginWindowHandle window = NULL;
Send(new ViewHostMsg_AllocateFakePluginWindowHandle(
routing_id(), opaque, root, &window));
if (window) {
fake_plugin_window_handles_.insert(window);
}
return window;
}
void RenderView::DestroyFakePluginWindowHandle(gfx::PluginWindowHandle window) {
if (window && fake_plugin_window_handles_.find(window) !=
fake_plugin_window_handles_.end()) {
Send(new ViewHostMsg_DestroyFakePluginWindowHandle(routing_id(), window));
fake_plugin_window_handles_.erase(window);
}
}
void RenderView::AcceleratedSurfaceSetIOSurface(gfx::PluginWindowHandle window,
int32 width,
int32 height,
uint64 io_surface_identifier) {
Send(new ViewHostMsg_AcceleratedSurfaceSetIOSurface(
routing_id(), window, width, height, io_surface_identifier));
}
void RenderView::AcceleratedSurfaceSetTransportDIB(
gfx::PluginWindowHandle window,
int32 width,
int32 height,
TransportDIB::Handle transport_dib) {
Send(new ViewHostMsg_AcceleratedSurfaceSetTransportDIB(
routing_id(), window, width, height, transport_dib));
}
TransportDIB::Handle RenderView::AcceleratedSurfaceAllocTransportDIB(
size_t size) {
TransportDIB::Handle dib_handle;
// Assume this is a synchronous RPC.
if (Send(new ViewHostMsg_AllocTransportDIB(size, true, &dib_handle)))
return dib_handle;
// Return an invalid handle if Send() fails.
return TransportDIB::DefaultHandleValue();
}
void RenderView::AcceleratedSurfaceFreeTransportDIB(TransportDIB::Id dib_id) {
Send(new ViewHostMsg_FreeTransportDIB(dib_id));
}
void RenderView::AcceleratedSurfaceBuffersSwapped(
gfx::PluginWindowHandle window, uint64 surface_id) {
Send(new ViewHostMsg_AcceleratedSurfaceBuffersSwapped(
routing_id(), window, surface_id));
}
#endif
bool RenderView::ScheduleFileChooser(
const ViewHostMsg_RunFileChooser_Params& params,
WebFileChooserCompletion* completion) {
static const size_t kMaximumPendingFileChooseRequests = 4;
if (file_chooser_completions_.size() > kMaximumPendingFileChooseRequests) {
// This sanity check prevents too many file choose requests from getting
// queued which could DoS the user. Getting these is most likely a
// programming error (there are many ways to DoS the user so it's not
// considered a "real" security check), either in JS requesting many file
// choosers to pop up, or in a plugin.
//
// TODO(brettw) we might possibly want to require a user gesture to open
// a file picker, which will address this issue in a better way.
return false;
}
file_chooser_completions_.push_back(linked_ptr<PendingFileChooser>(
new PendingFileChooser(params, completion)));
if (file_chooser_completions_.size() == 1) {
// Actually show the browse dialog when this is the first request.
Send(new ViewHostMsg_RunFileChooser(routing_id_, params));
}
return true;
}
void RenderView::OnPageTranslated() {
WebFrame* frame = webview()->mainFrame();
if (!frame)
return;
FOR_EACH_OBSERVER(RenderViewObserver, observers_, FrameTranslated(frame));
}
WebKit::WebGeolocationClient* RenderView::geolocationClient() {
if (!geolocation_dispatcher_)
geolocation_dispatcher_ = new GeolocationDispatcher(this);
return geolocation_dispatcher_;
}
WebKit::WebSpeechInputController* RenderView::speechInputController(
WebKit::WebSpeechInputListener* listener) {
if (!speech_input_dispatcher_)
speech_input_dispatcher_ = new SpeechInputDispatcher(this, listener);
return speech_input_dispatcher_;
}
WebKit::WebDeviceOrientationClient* RenderView::deviceOrientationClient() {
if (!device_orientation_dispatcher_)
device_orientation_dispatcher_ = new DeviceOrientationDispatcher(this);
return device_orientation_dispatcher_;
}
void RenderView::zoomLimitsChanged(double minimum_level, double maximum_level) {
// For now, don't remember plugin zoom values. We don't want to mix them with
// normal web content (i.e. a fixed layout plugin would usually want them
// different).
bool remember = !webview()->mainFrame()->document().isPluginDocument();
int minimum_percent = static_cast<int>(
WebView::zoomLevelToZoomFactor(minimum_level) * 100);
int maximum_percent = static_cast<int>(
WebView::zoomLevelToZoomFactor(maximum_level) * 100);
Send(new ViewHostMsg_UpdateZoomLimits(
routing_id_, minimum_percent, maximum_percent, remember));
}
void RenderView::zoomLevelChanged() {
bool remember = !webview()->mainFrame()->document().isPluginDocument();
// Tell the browser which url got zoomed so it can update the menu and the
// saved values if necessary
Send(new ViewHostMsg_DidZoomURL(
routing_id_, webview()->zoomLevel(), remember,
GURL(webview()->mainFrame()->url())));
}
void RenderView::registerProtocolHandler(const WebString& scheme,
const WebString& base_url,
const WebString& url,
const WebString& title) {
GURL base(base_url);
GURL absolute_url = base.Resolve(UTF16ToUTF8(url));
if (base.GetOrigin() != absolute_url.GetOrigin()) {
return;
}
RenderThread::current()->Send(
new ViewHostMsg_RegisterProtocolHandler(routing_id_,
UTF16ToUTF8(scheme),
absolute_url,
title));
}
bool RenderView::IsNonLocalTopLevelNavigation(
const GURL& url, WebKit::WebFrame* frame, WebKit::WebNavigationType type) {
// Must be a top level frame.
if (frame->parent() != NULL)
return false;
// Navigations initiated within Webkit are not sent out to the external host
// in the following cases.
// 1. The url scheme is not http/https
// 2. There is no opener and this is not the first url being opened by this
// RenderView.
// 3. The origin of the url and the opener is the same in which case the
// opener relationship is maintained.
// 4. Reloads/form submits/back forward navigations
if (!url.SchemeIs("http") && !url.SchemeIs("https"))
return false;
// Not interested in reloads/form submits/resubmits/back forward navigations.
if (type != WebKit::WebNavigationTypeReload &&
type != WebKit::WebNavigationTypeFormSubmitted &&
type != WebKit::WebNavigationTypeFormResubmitted &&
type != WebKit::WebNavigationTypeBackForward) {
// The opener relationship between the new window and the parent allows the
// new window to script the parent and vice versa. This is not allowed if
// the origins of the two domains are different. This can be treated as a
// top level navigation and routed back to the host.
WebKit::WebFrame* opener = frame->opener();
if (!opener) {
// Force link click navigations to always be routed to the host as they
// may update session state on the server.
if (type == WebKit::WebNavigationTypeLinkClicked)
return true;
// If this is the first page being loaded by this RenderView instance then
// it should stay here.
if (page_id_ == -1) {
return false;
} else {
return true;
}
}
if (url.GetOrigin() != GURL(opener->url()).GetOrigin())
return true;
}
return false;
}
void RenderView::OnAsyncFileOpened(base::PlatformFileError error_code,
IPC::PlatformFileForTransit file_for_transit,
int message_id) {
pepper_delegate_.OnAsyncFileOpened(
error_code,
IPC::PlatformFileForTransitToPlatformFile(file_for_transit),
message_id);
}
#if defined(OS_MACOSX)
void RenderView::OnSelectPopupMenuItem(int selected_index) {
if (external_popup_menu_ == NULL) {
// Crash reports from the field indicate that we can be notified with a
// NULL external popup menu (we probably get notified twice).
// If you hit this please file a bug against jcivelli and include the page
// and steps to repro.
NOTREACHED();
return;
}
external_popup_menu_->DidSelectItem(selected_index);
external_popup_menu_.reset();
}
#endif
void RenderView::AddErrorToRootConsole(const string16& message) {
if (webview() && webview()->mainFrame()) {
webview()->mainFrame()->addMessageToConsole(
WebConsoleMessage(WebConsoleMessage::LevelError, message));
}
}
#if defined(ENABLE_FLAPPER_HACKS)
void RenderView::OnConnectTcpACK(
int request_id,
IPC::PlatformFileForTransit socket_for_transit,
const PP_Flash_NetAddress& local_addr,
const PP_Flash_NetAddress& remote_addr) {
pepper_delegate_.OnConnectTcpACK(
request_id,
IPC::PlatformFileForTransitToPlatformFile(socket_for_transit),
local_addr,
remote_addr);
}
#endif
void RenderView::OnJavaScriptStressTestControl(int cmd, int param) {
if (cmd == kJavaScriptStressTestSetStressRunType) {
v8::Testing::SetStressRunType(static_cast<v8::Testing::StressType>(param));
} else if (cmd == kJavaScriptStressTestPrepareStressRun) {
v8::Testing::PrepareStressRun(param);
}
}
void RenderView::OnContextMenuClosed(
const webkit_glue::CustomContextMenuContext& custom_context) {
if (custom_context.is_pepper_menu)
pepper_delegate_.OnContextMenuClosed(custom_context);
else
context_menu_node_.reset();
}
void RenderView::OnNetworkStateChanged(bool online) {
WebNetworkStateNotifier::setOnLine(online);
}