// Copyright (c) 2009 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 "chrome/browser/tab_contents/web_contents.h"
#include "base/command_line.h"
#include "base/compiler_specific.h"
#include "base/file_version_info.h"
#include "base/process_util.h"
#include "base/string_util.h"
#include "chrome/browser/autofill_manager.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/character_encoding.h"
#include "chrome/browser/debugger/devtools_manager.h"
#include "chrome/browser/dom_operation_notification_details.h"
#include "chrome/browser/dom_ui/dom_ui.h"
#include "chrome/browser/dom_ui/dom_ui_factory.h"
#include "chrome/browser/download/download_manager.h"
#include "chrome/browser/download/download_request_manager.h"
#include "chrome/browser/gears_integration.h"
#include "chrome/browser/google_util.h"
#include "chrome/browser/jsmessage_box_handler.h"
#include "chrome/browser/load_from_memory_cache_details.h"
#include "chrome/browser/load_notification_details.h"
#include "chrome/browser/password_manager/password_manager.h"
#include "chrome/browser/plugin_installer.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/renderer_host/render_process_host.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/renderer_host/render_widget_host_view.h"
#include "chrome/browser/renderer_host/web_cache_manager.h"
#include "chrome/browser/search_engines/template_url_fetcher.h"
#include "chrome/browser/search_engines/template_url_model.h"
#include "chrome/browser/tab_contents/navigation_entry.h"
#include "chrome/browser/tab_contents/provisional_load_details.h"
#include "chrome/browser/tab_contents/tab_contents_view.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/l10n_util.h"
#include "chrome/common/notification_service.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/pref_service.h"
#include "chrome/common/render_messages.h"
#include "chrome/common/url_constants.h"
#include "grit/locale_settings.h"
#include "net/base/mime_util.h"
#include "net/base/net_errors.h"
#include "net/base/registry_controlled_domain.h"
#include "webkit/glue/feed.h"
#include "webkit/glue/webkit_glue.h"
#if defined(OS_WIN)
// TODO(port): fill these in as we flesh out the implementation of this class
#include "chrome/browser/modal_html_dialog_delegate.h"
#include "chrome/browser/plugin_service.h"
#include "chrome/browser/printing/print_job.h"
#include "chrome/browser/views/hung_renderer_view.h" // TODO(brettw) delete me.
#include "chrome/common/resource_bundle.h"
#endif
#include "grit/generated_resources.h"
// Cross-Site Navigations
//
// If a WebContents is told to navigate to a different web site (as determined
// by SiteInstance), it will replace its current RenderViewHost with a new
// RenderViewHost dedicated to the new SiteInstance. This works as follows:
//
// - Navigate determines whether the destination is cross-site, and if so,
// it creates a pending_render_view_host_ and moves into the PENDING
// RendererState.
// - The pending RVH is "suspended," so that no navigation messages are sent to
// its renderer until the onbeforeunload JavaScript handler has a chance to
// run in the current RVH.
// - The pending RVH tells CrossSiteRequestManager (a thread-safe singleton)
// that it has a pending cross-site request. ResourceDispatcherHost will
// check for this when the response arrives.
// - The current RVH runs its onbeforeunload handler. If it returns false, we
// cancel all the pending logic and go back to NORMAL. Otherwise we allow
// the pending RVH to send the navigation request to its renderer.
// - ResourceDispatcherHost receives a ResourceRequest on the IO thread. It
// checks CrossSiteRequestManager to see that the RVH responsible has a
// pending cross-site request, and then installs a CrossSiteEventHandler.
// - When RDH receives a response, the BufferedEventHandler determines whether
// it is a download. If so, it sends a message to the new renderer causing
// it to cancel the request, and the download proceeds in the download
// thread. For now, we stay in a PENDING state (with a pending RVH) until
// the next DidNavigate event for this WebContents. This isn't ideal, but it
// doesn't affect any functionality.
// - After RDH receives a response and determines that it is safe and not a
// download, it pauses the response to first run the old page's onunload
// handler. It does this by asynchronously calling the OnCrossSiteResponse
// method of WebContents on the UI thread, which sends a ClosePage message
// to the current RVH.
// - Once the onunload handler is finished, a ClosePage_ACK message is sent to
// the ResourceDispatcherHost, who unpauses the response. Data is then sent
// to the pending RVH.
// - The pending renderer sends a FrameNavigate message that invokes the
// DidNavigate method. This replaces the current RVH with the
// pending RVH and goes back to the NORMAL RendererState.
using base::TimeDelta;
using base::TimeTicks;
namespace {
// Amount of time we wait between when a key event is received and the renderer
// is queried for its state and pushed to the NavigationEntry.
const int kQueryStateDelay = 5000;
const int kSyncWaitDelay = 40;
// If another javascript message box is displayed within
// kJavascriptMessageExpectedDelay of a previous javascript message box being
// dismissed, display an option to suppress future message boxes from this
// contents.
const int kJavascriptMessageExpectedDelay = 1000;
// Minimum amount of time in ms that has to elapse since the download shelf was
// shown for us to hide it when navigating away from the current page.
const int kDownloadShelfHideDelay = 5000;
const char kLinkDoctorBaseURL[] =
"http://linkhelp.clients.google.com/tbproxy/lh/fixurl";
// The printer icon in shell32.dll. That's a standard icon user will quickly
// recognize.
const int kShell32PrinterIcon = 17;
// The list of prefs we want to observe.
const wchar_t* kPrefsToObserve[] = {
prefs::kAlternateErrorPagesEnabled,
prefs::kWebKitJavaEnabled,
prefs::kWebKitJavascriptEnabled,
prefs::kWebKitLoadsImagesAutomatically,
prefs::kWebKitPluginsEnabled,
prefs::kWebKitUsesUniversalDetector,
prefs::kWebKitSerifFontFamily,
prefs::kWebKitSansSerifFontFamily,
prefs::kWebKitFixedFontFamily,
prefs::kWebKitDefaultFontSize,
prefs::kWebKitDefaultFixedFontSize,
prefs::kDefaultCharset
// kWebKitStandardFontIsSerif needs to be added
// if we let users pick which font to use, serif or sans-serif when
// no font is specified or a CSS generic family (serif or sans-serif)
// is not specified.
};
const int kPrefsToObserveLength = arraysize(kPrefsToObserve);
// Limit on the number of suggestions to appear in the pop-up menu under an
// text input element in a form.
const int kMaxAutofillMenuItems = 6;
// Returns true if the entry's transition type is FORM_SUBMIT.
bool IsFormSubmit(const NavigationEntry* entry) {
return (PageTransition::StripQualifier(entry->transition_type()) ==
PageTransition::FORM_SUBMIT);
}
#if defined(OS_WIN)
BOOL CALLBACK InvalidateWindow(HWND hwnd, LPARAM lparam) {
// Note: erase is required to properly paint some widgets borders. This can
// be seen with textfields.
InvalidateRect(hwnd, NULL, TRUE);
return TRUE;
}
#endif
} // namespace
WebContents::WebContents(Profile* profile,
SiteInstance* site_instance,
int routing_id,
base::WaitableEvent* modal_dialog_event)
: TabContents(profile) {
pending_install_.page_id = 0;
pending_install_.callback_functor = NULL;
render_manager_.Init(profile, site_instance, routing_id, modal_dialog_event);
view_->CreateView();
// Register for notifications about all interested prefs change.
PrefService* prefs = profile->GetPrefs();
if (prefs) {
for (int i = 0; i < kPrefsToObserveLength; ++i)
prefs->AddPrefObserver(kPrefsToObserve[i], this);
}
// Register for notifications about URL starredness changing on any profile.
registrar_.Add(this, NotificationType::URLS_STARRED,
NotificationService::AllSources());
registrar_.Add(this, NotificationType::BOOKMARK_MODEL_LOADED,
NotificationService::AllSources());
registrar_.Add(this, NotificationType::RENDER_WIDGET_HOST_DESTROYED,
NotificationService::AllSources());
// Keep a global copy of the previous search string (if any).
static string16 global_last_search = string16();
find_prepopulate_text_ = &global_last_search;
}
WebContents::~WebContents() {
is_being_destroyed_ = true;
// We don't want any notifications while we're runnign our destructor.
registrar_.RemoveAll();
// Unregister the notifications of all observed prefs change.
PrefService* prefs = profile()->GetPrefs();
if (prefs) {
for (int i = 0; i < kPrefsToObserveLength; ++i)
prefs->RemovePrefObserver(kPrefsToObserve[i], this);
}
// Clean up subwindows like plugins and the find in page bar.
view_->OnContentsDestroy();
NotifyDisconnected();
HungRendererWarning::HideForWebContents(this);
if (pending_install_.callback_functor)
pending_install_.callback_functor->Cancel();
// First cleanly close all child windows.
// TODO(mpcomplete): handle case if MaybeCloseChildWindows() already asked
// some of these to close. CloseWindows is async, so it might get called
// twice before it runs.
int size = static_cast<int>(child_windows_.size());
for (int i = size - 1; i >= 0; --i) {
ConstrainedWindow* window = child_windows_[i];
if (window)
window->CloseConstrainedWindow();
}
// Notify any lasting InfobarDelegates that have not yet been removed that
// whatever infobar they were handling in this TabContents has closed,
// because the TabContents is going away entirely.
for (int i = 0; i < infobar_delegate_count(); ++i) {
InfoBarDelegate* delegate = GetInfoBarDelegateAt(i);
delegate->InfoBarClosed();
}
infobar_delegates_.clear();
// Notify any observer that have a reference on this tab contents.
NotificationService::current()->Notify(
NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(this),
NotificationService::NoDetails());
// TODO(brettw) this should be moved to the view.
#if defined(OS_WIN)
// If we still have a window handle, destroy it. GetNativeView can return
// NULL if this contents was part of a window that closed.
if (GetNativeView())
::DestroyWindow(GetNativeView());
#endif
}
// static
void WebContents::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterBooleanPref(prefs::kAlternateErrorPagesEnabled, true);
WebPreferences pref_defaults;
prefs->RegisterBooleanPref(prefs::kWebKitJavascriptEnabled,
pref_defaults.javascript_enabled);
prefs->RegisterBooleanPref(prefs::kWebKitWebSecurityEnabled,
pref_defaults.web_security_enabled);
prefs->RegisterBooleanPref(
prefs::kWebKitJavascriptCanOpenWindowsAutomatically, true);
prefs->RegisterBooleanPref(prefs::kWebKitLoadsImagesAutomatically,
pref_defaults.loads_images_automatically);
prefs->RegisterBooleanPref(prefs::kWebKitPluginsEnabled,
pref_defaults.plugins_enabled);
prefs->RegisterBooleanPref(prefs::kWebKitDomPasteEnabled,
pref_defaults.dom_paste_enabled);
prefs->RegisterBooleanPref(prefs::kWebKitShrinksStandaloneImagesToFit,
pref_defaults.shrinks_standalone_images_to_fit);
prefs->RegisterBooleanPref(prefs::kWebKitDeveloperExtrasEnabled,
true);
prefs->RegisterBooleanPref(prefs::kWebKitTextAreasAreResizable,
pref_defaults.text_areas_are_resizable);
prefs->RegisterBooleanPref(prefs::kWebKitJavaEnabled,
pref_defaults.java_enabled);
prefs->RegisterLocalizedStringPref(prefs::kAcceptLanguages,
IDS_ACCEPT_LANGUAGES);
prefs->RegisterLocalizedStringPref(prefs::kDefaultCharset,
IDS_DEFAULT_ENCODING);
prefs->RegisterLocalizedBooleanPref(prefs::kWebKitStandardFontIsSerif,
IDS_STANDARD_FONT_IS_SERIF);
prefs->RegisterLocalizedStringPref(prefs::kWebKitFixedFontFamily,
IDS_FIXED_FONT_FAMILY);
prefs->RegisterLocalizedStringPref(prefs::kWebKitSerifFontFamily,
IDS_SERIF_FONT_FAMILY);
prefs->RegisterLocalizedStringPref(prefs::kWebKitSansSerifFontFamily,
IDS_SANS_SERIF_FONT_FAMILY);
prefs->RegisterLocalizedStringPref(prefs::kWebKitCursiveFontFamily,
IDS_CURSIVE_FONT_FAMILY);
prefs->RegisterLocalizedStringPref(prefs::kWebKitFantasyFontFamily,
IDS_FANTASY_FONT_FAMILY);
prefs->RegisterLocalizedIntegerPref(prefs::kWebKitDefaultFontSize,
IDS_DEFAULT_FONT_SIZE);
prefs->RegisterLocalizedIntegerPref(prefs::kWebKitDefaultFixedFontSize,
IDS_DEFAULT_FIXED_FONT_SIZE);
prefs->RegisterLocalizedIntegerPref(prefs::kWebKitMinimumFontSize,
IDS_MINIMUM_FONT_SIZE);
prefs->RegisterLocalizedIntegerPref(prefs::kWebKitMinimumLogicalFontSize,
IDS_MINIMUM_LOGICAL_FONT_SIZE);
prefs->RegisterLocalizedBooleanPref(prefs::kWebKitUsesUniversalDetector,
IDS_USES_UNIVERSAL_DETECTOR);
prefs->RegisterLocalizedStringPref(prefs::kStaticEncodings,
IDS_STATIC_ENCODING_LIST);
}
AutofillManager* WebContents::GetAutofillManager() {
if (autofill_manager_.get() == NULL)
autofill_manager_.reset(new AutofillManager(this));
return autofill_manager_.get();
}
PasswordManager* WebContents::GetPasswordManager() {
if (password_manager_.get() == NULL)
password_manager_.reset(new PasswordManager(this));
return password_manager_.get();
}
PluginInstaller* WebContents::GetPluginInstaller() {
if (plugin_installer_.get() == NULL)
plugin_installer_.reset(new PluginInstaller(this));
return plugin_installer_.get();
}
const string16& WebContents::GetTitle() const {
DOMUI* our_dom_ui = render_manager_.pending_dom_ui() ?
render_manager_.pending_dom_ui() : render_manager_.dom_ui();
if (our_dom_ui) {
// Give the DOM UI the chance to override our title.
const string16& title = our_dom_ui->overridden_title();
if (!title.empty())
return title;
}
// We use the title for the last committed entry rather than a pending
// navigation entry. For example, when the user types in a URL, we want to
// keep the old page's title until the new load has committed and we get a new
// title.
// The exception is with transient pages, for which we really want to use
// their title, as they are not committed.
NavigationEntry* entry = controller_.GetTransientEntry();
if (entry)
return entry->GetTitleForDisplay(&controller_);
entry = controller_.GetLastCommittedEntry();
if (entry)
return entry->GetTitleForDisplay(&controller_);
else if (controller_.LoadingURLLazily())
return controller_.GetLazyTitle();
return EmptyString16();
}
SiteInstance* WebContents::GetSiteInstance() const {
return render_manager_.current_host()->site_instance();
}
bool WebContents::ShouldDisplayURL() {
DOMUI* dom_ui = GetDOMUIForCurrentState();
if (dom_ui)
return !dom_ui->should_hide_url();
return true;
}
bool WebContents::ShouldDisplayFavIcon() {
// Always display a throbber during pending loads.
if (controller_.GetLastCommittedEntry() && controller_.pending_entry())
return true;
DOMUI* dom_ui = GetDOMUIForCurrentState();
if (dom_ui)
return !dom_ui->hide_favicon();
return true;
}
std::wstring WebContents::GetStatusText() const {
if (!is_loading() || load_state_ == net::LOAD_STATE_IDLE)
return std::wstring();
switch (load_state_) {
case net::LOAD_STATE_WAITING_FOR_CACHE:
return l10n_util::GetString(IDS_LOAD_STATE_WAITING_FOR_CACHE);
case net::LOAD_STATE_RESOLVING_PROXY_FOR_URL:
return l10n_util::GetString(IDS_LOAD_STATE_RESOLVING_PROXY_FOR_URL);
case net::LOAD_STATE_RESOLVING_HOST:
return l10n_util::GetString(IDS_LOAD_STATE_RESOLVING_HOST);
case net::LOAD_STATE_CONNECTING:
return l10n_util::GetString(IDS_LOAD_STATE_CONNECTING);
case net::LOAD_STATE_SENDING_REQUEST:
return l10n_util::GetString(IDS_LOAD_STATE_SENDING_REQUEST);
case net::LOAD_STATE_WAITING_FOR_RESPONSE:
return l10n_util::GetStringF(IDS_LOAD_STATE_WAITING_FOR_RESPONSE,
load_state_host_);
// Ignore net::LOAD_STATE_READING_RESPONSE and net::LOAD_STATE_IDLE
case net::LOAD_STATE_IDLE:
case net::LOAD_STATE_READING_RESPONSE:
break;
}
return std::wstring();
}
bool WebContents::NavigateToPendingEntry(bool reload) {
const NavigationEntry& entry = *controller_.pending_entry();
RenderViewHost* dest_render_view_host = render_manager_.Navigate(entry);
if (!dest_render_view_host)
return false; // Unable to create the desired render view host.
// Tell DevTools agent that it is attached prior to the navigation.
DevToolsManager* dev_tools_manager = g_browser_process->devtools_manager();
if (dev_tools_manager) // NULL in unit tests.
dev_tools_manager->SendAttachToAgent(*this, dest_render_view_host);
// Used for page load time metrics.
current_load_start_ = TimeTicks::Now();
// Navigate in the desired RenderViewHost.
dest_render_view_host->NavigateToEntry(entry, reload);
if (entry.page_id() == -1) {
// HACK!! This code suppresses javascript: URLs from being added to
// session history, which is what we want to do for javascript: URLs that
// do not generate content. What we really need is a message from the
// renderer telling us that a new page was not created. The same message
// could be used for mailto: URLs and the like.
if (entry.url().SchemeIs(chrome::kJavaScriptScheme))
return false;
}
// Clear any provisional password saves - this stops password infobars
// showing up on pages the user navigates to while the right page is
// loading.
GetPasswordManager()->ClearProvisionalSave();
if (reload && !profile()->IsOffTheRecord()) {
HistoryService* history =
profile()->GetHistoryService(Profile::IMPLICIT_ACCESS);
if (history)
history->SetFavIconOutOfDateForPage(entry.url());
}
return true;
}
void WebContents::Stop() {
render_manager_.Stop();
printing_.Stop();
}
void WebContents::Cut() {
render_view_host()->Cut();
}
void WebContents::Copy() {
render_view_host()->Copy();
}
void WebContents::Paste() {
render_view_host()->Paste();
}
void WebContents::DisassociateFromPopupCount() {
render_view_host()->DisassociateFromPopupCount();
}
TabContents* WebContents::Clone() {
// We create a new SiteInstance so that the new tab won't share processes
// with the old one. This can be changed in the future if we need it to share
// processes for some reason.
TabContents* tc = new WebContents(profile(),
SiteInstance::CreateSiteInstance(profile()),
MSG_ROUTING_NONE, NULL);
tc->controller().CopyStateFrom(controller_);
return tc;
}
void WebContents::DidBecomeSelected() {
controller_.SetActive(true);
if (render_widget_host_view())
render_widget_host_view()->DidBecomeSelected();
// If pid() is -1, that means the RenderProcessHost still hasn't been
// initialized. It'll register with CacheManagerHost when it is.
if (process()->pid() != -1)
WebCacheManager::GetInstance()->ObserveActivity(process()->pid());
}
void WebContents::WasHidden() {
if (!capturing_contents()) {
// |render_view_host()| can be NULL if the user middle clicks a link to open
// a tab in then background, then closes the tab before selecting it. This
// is because closing the tab calls WebContents::Destroy(), which removes
// the |render_view_host()|; then when we actually destroy the window,
// OnWindowPosChanged() notices and calls HideContents() (which calls us).
if (render_widget_host_view())
render_widget_host_view()->WasHidden();
// Loop through children and send WasHidden to them, too.
int count = static_cast<int>(child_windows_.size());
for (int i = count - 1; i >= 0; --i) {
ConstrainedWindow* window = child_windows_.at(i);
window->WasHidden();
}
}
NotificationService::current()->Notify(
NotificationType::TAB_CONTENTS_HIDDEN,
Source<TabContents>(this),
NotificationService::NoDetails());
}
void WebContents::ShowContents() {
if (render_widget_host_view())
render_widget_host_view()->DidBecomeSelected();
// Loop through children and send DidBecomeSelected to them, too.
int count = static_cast<int>(child_windows_.size());
for (int i = count - 1; i >= 0; --i) {
ConstrainedWindow* window = child_windows_.at(i);
window->DidBecomeSelected();
}
}
void WebContents::HideContents() {
// TODO(pkasting): http://b/1239839 Right now we purposefully don't call
// our superclass HideContents(), because some callers want to be very picky
// about the order in which these get called. In addition to making the code
// here practically impossible to understand, this also means we end up
// calling TabContents::WasHidden() twice if callers call both versions of
// HideContents() on a WebContents.
WasHidden();
}
bool WebContents::IsBookmarkBarAlwaysVisible() {
// See GetDOMUIForCurrentState() comment for more info. This case is very
// similar, but for non-first loads, we want to use the committed entry. This
// is so the bookmarks bar disappears at the same time the page does.
if (controller_.GetLastCommittedEntry()) {
// Not the first load, always use the committed DOM UI.
if (render_manager_.dom_ui())
return render_manager_.dom_ui()->force_bookmark_bar_visible();
return false; // Default.
}
// When it's the first load, we know either the pending one or the committed
// one will have the DOM UI in it (see GetDOMUIForCurrentState), and only one
// of them will be valid, so we can just check both.
if (render_manager_.pending_dom_ui())
return render_manager_.pending_dom_ui()->force_bookmark_bar_visible();
if (render_manager_.dom_ui())
return render_manager_.dom_ui()->force_bookmark_bar_visible();
return false; // Default.
}
void WebContents::SetDownloadShelfVisible(bool visible) {
if (shelf_visible_ != visible) {
if (visible) {
// Invoke GetDownloadShelf to force the shelf to be created.
GetDownloadShelf();
}
shelf_visible_ = visible;
if (delegate_)
delegate_->ContentsStateChanged(this);
}
// SetShelfVisible can force-close the shelf, so make sure we lay out
// everything correctly, as if the animation had finished. This doesn't
// matter for showing the shelf, as the show animation will do it.
ToolbarSizeChanged(false);
if (visible) {
// Always set this value as it reflects the last time the download shelf
// was made visible (even if it was already visible).
last_download_shelf_show_ = TimeTicks::Now();
}
}
void WebContents::PopupNotificationVisibilityChanged(bool visible) {
render_view_host()->PopupNotificationVisibilityChanged(visible);
}
bool WebContents::FocusLocationBarByDefault() {
DOMUI* dom_ui = GetDOMUIForCurrentState();
if (dom_ui)
return dom_ui->focus_location_bar_by_default();
return false;
}
gfx::NativeView WebContents::GetNativeView() const {
return view_->GetNativeView();
}
gfx::NativeView WebContents::GetContentNativeView() {
return view_->GetContentNativeView();
}
void WebContents::GetContainerBounds(gfx::Rect *out) const {
view_->GetContainerBounds(out);
}
void WebContents::CreateShortcut() {
NavigationEntry* entry = controller_.GetLastCommittedEntry();
if (!entry)
return;
// We only allow one pending install request. By resetting the page id we
// effectively cancel the pending install request.
pending_install_.page_id = entry->page_id();
pending_install_.icon = GetFavIcon();
pending_install_.title = UTF16ToWideHack(GetTitle());
pending_install_.url = GetURL();
if (pending_install_.callback_functor) {
pending_install_.callback_functor->Cancel();
pending_install_.callback_functor = NULL;
}
DCHECK(!pending_install_.icon.isNull()) << "Menu item should be disabled.";
if (pending_install_.title.empty())
pending_install_.title = UTF8ToWide(GetURL().spec());
// Request the application info. When done OnDidGetApplicationInfo is invoked
// and we'll create the shortcut.
render_view_host()->GetApplicationInfo(pending_install_.page_id);
}
void WebContents::StartFinding(const string16& find_text,
bool forward_direction) {
// If find_text is empty, it means FindNext was pressed with a keyboard
// shortcut so unless we have something to search for we return early.
if (find_text.empty() && find_text_.empty())
return;
// This is a FindNext operation if we are searching for the same text again,
// or if the passed in search text is empty (FindNext keyboard shortcut). The
// exception to this is if the Find was aborted (then we don't want FindNext
// because the highlighting has been cleared and we need it to reappear). We
// therefore treat FindNext after an aborted Find operation as a full fledged
// Find.
bool find_next = (find_text_ == find_text || find_text.empty()) &&
!find_op_aborted_;
if (!find_next)
current_find_request_id_ = find_request_id_counter_++;
if (!find_text.empty())
find_text_ = find_text;
find_op_aborted_ = false;
// Keep track of what the last search was across the tabs.
*find_prepopulate_text_ = find_text;
render_view_host()->StartFinding(current_find_request_id_,
find_text_,
forward_direction,
false, // case sensitive
find_next);
}
void WebContents::StopFinding(bool clear_selection) {
find_ui_active_ = false;
find_op_aborted_ = true;
find_result_ = FindNotificationDetails();
render_view_host()->StopFinding(clear_selection);
}
void WebContents::OnJavaScriptMessageBoxClosed(IPC::Message* reply_msg,
bool success,
const std::wstring& prompt) {
last_javascript_message_dismissal_ = TimeTicks::Now();
render_manager_.OnJavaScriptMessageBoxClosed(reply_msg, success, prompt);
}
void WebContents::OnSavePage() {
// If we can not save the page, try to download it.
if (!SavePackage::IsSavableContents(contents_mime_type())) {
DownloadManager* dlm = profile()->GetDownloadManager();
const GURL& current_page_url = GetURL();
if (dlm && current_page_url.is_valid())
dlm->DownloadUrl(current_page_url, GURL(), this);
return;
}
Stop();
// Create the save package and possibly prompt the user for the name to save
// the page as. The user prompt is an asynchronous operation that runs on
// another thread.
save_package_ = new SavePackage(this);
save_package_->GetSaveInfo();
}
// Used in automated testing to bypass prompting the user for file names.
// Instead, the names and paths are hard coded rather than running them through
// file name sanitation and extension / mime checking.
void WebContents::SavePage(const std::wstring& main_file,
const std::wstring& dir_path,
SavePackage::SavePackageType save_type) {
// Stop the page from navigating.
Stop();
save_package_ = new SavePackage(this, save_type,
FilePath::FromWStringHack(main_file),
FilePath::FromWStringHack(dir_path));
save_package_->Init();
}
void WebContents::PrintPreview() {
// We don't show the print preview yet, only the print dialog.
PrintNow();
}
bool WebContents::PrintNow() {
// We can't print interstitial page for now.
if (showing_interstitial_page())
return false;
return render_view_host()->PrintPages();
}
bool WebContents::IsActiveEntry(int32 page_id) {
NavigationEntry* active_entry = controller_.GetActiveEntry();
return (active_entry != NULL &&
active_entry->site_instance() == GetSiteInstance() &&
active_entry->page_id() == page_id);
}
void WebContents::Focus() {
view_->Focus();
}
void WebContents::SetInitialFocus(bool reverse) {
render_view_host()->SetInitialFocus(reverse);
}
// Notifies the RenderWidgetHost instance about the fact that the page is
// loading, or done loading and calls the base implementation.
void WebContents::SetIsLoading(bool is_loading,
LoadNotificationDetails* details) {
if (is_loading == is_loading_)
return;
if (!is_loading) {
load_state_ = net::LOAD_STATE_IDLE;
load_state_host_.clear();
}
render_manager_.SetIsLoading(is_loading);
is_loading_ = is_loading;
waiting_for_response_ = is_loading;
if (delegate_)
delegate_->LoadingStateChanged(this);
NotificationType type = is_loading ? NotificationType::LOAD_START :
NotificationType::LOAD_STOP;
NotificationDetails det = NotificationService::NoDetails();;
if (details)
det = Details<LoadNotificationDetails>(details);
NotificationService::current()->Notify(type,
Source<NavigationController>(&controller_),
det);
}
RenderViewHostDelegate::View* WebContents::GetViewDelegate() const {
return view_.get();
}
RenderViewHostDelegate::Save* WebContents::GetSaveDelegate() const {
return save_package_.get(); // May be NULL, but we can return NULL.
}
Profile* WebContents::GetProfile() const {
return profile();
}
void WebContents::RenderViewCreated(RenderViewHost* render_view_host) {
NavigationEntry* entry = controller_.GetActiveEntry();
if (!entry)
return;
// When we're creating views, we're still doing initial setup, so we always
// use the pending DOM UI rather than any possibly existing committed one.
if (render_manager_.pending_dom_ui()) {
render_manager_.pending_dom_ui()->RenderViewCreated(render_view_host);
} else if (entry->IsViewSourceMode()) {
// Put the renderer in view source mode.
render_view_host->Send(
new ViewMsg_EnableViewSourceMode(render_view_host->routing_id()));
}
}
void WebContents::RenderViewReady(RenderViewHost* rvh) {
if (rvh != render_view_host()) {
// Don't notify the world, since this came from a renderer in the
// background.
return;
}
NotifyConnected();
SetIsCrashed(false);
}
void WebContents::RenderViewGone(RenderViewHost* rvh) {
// Ask the print preview if this renderer was valuable.
if (!printing_.OnRenderViewGone(rvh))
return;
if (rvh != render_view_host()) {
// The pending page's RenderViewHost is gone.
return;
}
SetIsLoading(false, NULL);
NotifyDisconnected();
SetIsCrashed(true);
// Force an invalidation to render sad tab. The view will notice we crashed
// when it paints.
view_->Invalidate();
// Hide any visible hung renderer warning for this web contents' process.
HungRendererWarning::HideForWebContents(this);
}
void WebContents::DidNavigate(RenderViewHost* rvh,
const ViewHostMsg_FrameNavigate_Params& params) {
if (PageTransition::IsMainFrame(params.transition))
render_manager_.DidNavigateMainFrame(rvh);
// Update the site of the SiteInstance if it doesn't have one yet.
if (!GetSiteInstance()->has_site())
GetSiteInstance()->SetSite(params.url);
// Need to update MIME type here because it's referred to in
// UpdateNavigationCommands() called by RendererDidNavigate() to
// determine whether or not to enable the encoding menu.
// It's updated only for the main frame. For a subframe,
// RenderView::UpdateURL does not set params.contents_mime_type.
// (see http://code.google.com/p/chromium/issues/detail?id=2929 )
// TODO(jungshik): Add a test for the encoding menu to avoid
// regressing it again.
if (PageTransition::IsMainFrame(params.transition))
contents_mime_type_ = params.contents_mime_type;
NavigationController::LoadCommittedDetails details;
if (!controller_.RendererDidNavigate(params, &details))
return; // No navigation happened.
// DO NOT ADD MORE STUFF TO THIS FUNCTION! Your component should either listen
// for the appropriate notification (best) or you can add it to
// DidNavigateMainFramePostCommit / DidNavigateAnyFramePostCommit (only if
// necessary, please).
// Run post-commit tasks.
if (details.is_main_frame)
DidNavigateMainFramePostCommit(details, params);
DidNavigateAnyFramePostCommit(rvh, details, params);
}
void WebContents::UpdateState(RenderViewHost* rvh,
int32 page_id,
const std::string& state) {
DCHECK(rvh == render_view_host());
// We must be prepared to handle state updates for any page, these occur
// when the user is scrolling and entering form data, as well as when we're
// leaving a page, in which case our state may have already been moved to
// the next page. The navigation controller will look up the appropriate
// NavigationEntry and update it when it is notified via the delegate.
int entry_index = controller_.GetEntryIndexWithPageID(
GetSiteInstance(), page_id);
if (entry_index < 0)
return;
NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index);
if (state == entry->content_state())
return; // Nothing to update.
entry->set_content_state(state);
controller_.NotifyEntryChanged(entry, entry_index);
}
void WebContents::UpdateTitle(RenderViewHost* rvh,
int32 page_id, const std::wstring& title) {
// If we have a title, that's a pretty good indication that we've started
// getting useful data.
SetNotWaitingForResponse();
DCHECK(rvh == render_view_host());
NavigationEntry* entry = controller_.GetEntryWithPageID(GetSiteInstance(),
page_id);
if (!entry || !UpdateTitleForEntry(entry, title))
return;
// Broadcast notifications when the UI should be updated.
if (entry == controller_.GetEntryAtOffset(0))
NotifyNavigationStateChanged(INVALIDATE_TITLE);
}
void WebContents::UpdateFeedList(
RenderViewHost* rvh, const ViewHostMsg_UpdateFeedList_Params& params) {
// We might have an old RenderViewHost sending messages, and we should ignore
// those messages.
if (rvh != render_view_host())
return;
NavigationEntry* entry = controller_.GetEntryWithPageID(GetSiteInstance(),
params.page_id);
if (!entry)
return;
entry->set_feedlist(params.feedlist);
// Broadcast notifications when the UI should be updated.
if (entry == controller_.GetEntryAtOffset(0))
NotifyNavigationStateChanged(INVALIDATE_FEEDLIST);
}
void WebContents::UpdateEncoding(RenderViewHost* render_view_host,
const std::wstring& encoding) {
set_encoding(encoding);
}
void WebContents::UpdateTargetURL(int32 page_id, const GURL& url) {
if (delegate())
delegate()->UpdateTargetURL(this, url);
}
void WebContents::UpdateThumbnail(const GURL& url,
const SkBitmap& bitmap,
const ThumbnailScore& score) {
// Tell History about this thumbnail
HistoryService* hs;
if (!profile()->IsOffTheRecord() &&
(hs = profile()->GetHistoryService(Profile::IMPLICIT_ACCESS))) {
hs->SetPageThumbnail(url, bitmap, score);
}
}
void WebContents::Close(RenderViewHost* rvh) {
// Ignore this if it comes from a RenderViewHost that we aren't showing.
if (delegate() && rvh == render_view_host())
delegate()->CloseContents(this);
}
void WebContents::RequestMove(const gfx::Rect& new_bounds) {
if (delegate() && delegate()->IsPopup(this))
delegate()->MoveContents(this, new_bounds);
}
void WebContents::DidStartLoading(RenderViewHost* rvh, int32 page_id) {
SetIsLoading(true, NULL);
}
void WebContents::DidStopLoading(RenderViewHost* rvh, int32 page_id) {
scoped_ptr<LoadNotificationDetails> details;
NavigationEntry* entry = controller_.GetActiveEntry();
// An entry may not exist for a stop when loading an initial blank page or
// if an iframe injected by script into a blank page finishes loading.
if (entry) {
scoped_ptr<base::ProcessMetrics> metrics(
base::ProcessMetrics::CreateProcessMetrics(
process()->process().handle()));
TimeDelta elapsed = TimeTicks::Now() - current_load_start_;
details.reset(new LoadNotificationDetails(
entry->display_url(),
entry->transition_type(),
elapsed,
&controller_,
controller_.GetCurrentEntryIndex()));
}
// Tell PasswordManager we've finished a page load, which serves as a
// green light to save pending passwords and reset itself.
GetPasswordManager()->DidStopLoading();
SetIsLoading(false, details.get());
}
void WebContents::DidStartProvisionalLoadForFrame(
RenderViewHost* render_view_host,
bool is_main_frame,
const GURL& url) {
ProvisionalLoadDetails details(is_main_frame,
controller_.IsURLInPageNavigation(url),
url, std::string(), false);
NotificationService::current()->Notify(
NotificationType::FRAME_PROVISIONAL_LOAD_START,
Source<NavigationController>(&controller_),
Details<ProvisionalLoadDetails>(&details));
}
void WebContents::DidRedirectProvisionalLoad(int32 page_id,
const GURL& source_url,
const GURL& target_url) {
NavigationEntry* entry;
if (page_id == -1)
entry = controller_.pending_entry();
else
entry = controller_.GetEntryWithPageID(GetSiteInstance(), page_id);
if (!entry || entry->url() != source_url)
return;
entry->set_url(target_url);
}
void WebContents::DidLoadResourceFromMemoryCache(
const GURL& url,
const std::string& frame_origin,
const std::string& main_frame_origin,
const std::string& security_info) {
// Send out a notification that we loaded a resource from our memory cache.
int cert_id = 0, cert_status = 0, security_bits = 0;
SSLManager::DeserializeSecurityInfo(security_info,
&cert_id, &cert_status,
&security_bits);
LoadFromMemoryCacheDetails details(url, frame_origin, main_frame_origin,
cert_id, cert_status);
NotificationService::current()->Notify(
NotificationType::LOAD_FROM_MEMORY_CACHE,
Source<NavigationController>(&controller_),
Details<LoadFromMemoryCacheDetails>(&details));
}
void WebContents::DidFailProvisionalLoadWithError(
RenderViewHost* render_view_host,
bool is_main_frame,
int error_code,
const GURL& url,
bool showing_repost_interstitial) {
if (net::ERR_ABORTED == error_code) {
// EVIL HACK ALERT! Ignore failed loads when we're showing interstitials.
// This means that the interstitial won't be torn down properly, which is
// bad. But if we have an interstitial, go back to another tab type, and
// then load the same interstitial again, we could end up getting the first
// interstitial's "failed" message (as a result of the cancel) when we're on
// the second one.
//
// We can't tell this apart, so we think we're tearing down the current page
// which will cause a crash later one. There is also some code in
// RenderViewHostManager::RendererAbortedProvisionalLoad that is commented
// out because of this problem.
//
// http://code.google.com/p/chromium/issues/detail?id=2855
// Because this will not tear down the interstitial properly, if "back" is
// back to another tab type, the interstitial will still be somewhat alive
// in the previous tab type. If you navigate somewhere that activates the
// tab with the interstitial again, you'll see a flash before the new load
// commits of the interstitial page.
if (showing_interstitial_page()) {
LOG(WARNING) << "Discarding message during interstitial.";
return;
}
// This will discard our pending entry if we cancelled the load (e.g., if we
// decided to download the file instead of load it). Only discard the
// pending entry if the URLs match, otherwise the user initiated a navigate
// before the page loaded so that the discard would discard the wrong entry.
NavigationEntry* pending_entry = controller_.pending_entry();
if (pending_entry && pending_entry->url() == url)
controller_.DiscardNonCommittedEntries();
render_manager_.RendererAbortedProvisionalLoad(render_view_host);
}
// Send out a notification that we failed a provisional load with an error.
ProvisionalLoadDetails details(is_main_frame,
controller_.IsURLInPageNavigation(url),
url, std::string(), false);
details.set_error_code(error_code);
NotificationService::current()->Notify(
NotificationType::FAIL_PROVISIONAL_LOAD_WITH_ERROR,
Source<NavigationController>(&controller_),
Details<ProvisionalLoadDetails>(&details));
}
void WebContents::UpdateFavIconURL(RenderViewHost* render_view_host,
int32 page_id,
const GURL& icon_url) {
fav_icon_helper_.SetFavIconURL(icon_url);
}
void WebContents::DidDownloadImage(
RenderViewHost* render_view_host,
int id,
const GURL& image_url,
bool errored,
const SkBitmap& image) {
// A notification for downloading would be more flexible, but for now I'm
// forwarding to the two places that could possibly have initiated the
// request. If we end up with another place invoking DownloadImage, probably
// best to refactor out into notification service, or something similar.
if (errored)
fav_icon_helper_.FavIconDownloadFailed(id);
else
fav_icon_helper_.SetFavIcon(id, image_url, image);
}
void WebContents::RequestOpenURL(const GURL& url, const GURL& referrer,
WindowOpenDisposition disposition) {
if (render_manager_.dom_ui()) {
// When we're a DOM UI, it will provide a page transition type for us (this
// is so the new tab page can specify AUTO_BOOKMARK for automatically
// generated suggestions).
//
// Note also that we hide the referrer for DOM UI pages. We don't really
// want web sites to see a referrer of "chrome-ui://blah" (and some
// chrome-ui URLs might have search terms or other stuff we don't want to
// send to the site), so we send no referrer.
OpenURL(url, GURL(), disposition,
render_manager_.dom_ui()->link_transition_type());
} else {
OpenURL(url, referrer, disposition, PageTransition::LINK);
}
}
void WebContents::DomOperationResponse(const std::string& json_string,
int automation_id) {
DomOperationNotificationDetails details(json_string, automation_id);
NotificationService::current()->Notify(
NotificationType::DOM_OPERATION_RESPONSE, Source<WebContents>(this),
Details<DomOperationNotificationDetails>(&details));
}
void WebContents::ProcessDOMUIMessage(const std::string& message,
const std::string& content) {
if (!render_manager_.dom_ui()) {
// We shouldn't get a DOM UI message when we haven't enabled the DOM UI.
// Because the renderer might be owned and sending random messages, we need
// to ignore these inproper ones.
NOTREACHED();
return;
}
render_manager_.dom_ui()->ProcessDOMUIMessage(message, content);
}
void WebContents::ProcessExternalHostMessage(const std::string& message,
const std::string& origin,
const std::string& target) {
if (delegate())
delegate()->ForwardMessageToExternalHost(message, origin, target);
}
void WebContents::GoToEntryAtOffset(int offset) {
controller_.GoToOffset(offset);
}
void WebContents::GetHistoryListCount(int* back_list_count,
int* forward_list_count) {
int current_index = controller_.last_committed_entry_index();
*back_list_count = current_index;
*forward_list_count = controller_.entry_count() - current_index - 1;
}
void WebContents::RunFileChooser(bool multiple_files,
const string16& title,
const FilePath& default_file) {
if (!select_file_dialog_.get())
select_file_dialog_ = SelectFileDialog::Create(this);
SelectFileDialog::Type dialog_type =
multiple_files ? SelectFileDialog::SELECT_OPEN_MULTI_FILE :
SelectFileDialog::SELECT_OPEN_FILE;
select_file_dialog_->SelectFile(dialog_type, title, default_file,
NULL, 0, FILE_PATH_LITERAL(""),
view_->GetTopLevelNativeWindow(), NULL);
}
void WebContents::RunJavaScriptMessage(
const std::wstring& message,
const std::wstring& default_prompt,
const GURL& frame_url,
const int flags,
IPC::Message* reply_msg,
bool* did_suppress_message) {
// Suppress javascript messages when requested and when inside a constrained
// popup window (because that activates them and breaks them out of the
// constrained window jail).
bool suppress_this_message = suppress_javascript_messages_;
if (delegate())
suppress_this_message |=
(delegate()->GetConstrainingContents(this) != NULL);
*did_suppress_message = suppress_this_message;
if (!suppress_this_message) {
TimeDelta time_since_last_message(
TimeTicks::Now() - last_javascript_message_dismissal_);
bool show_suppress_checkbox = false;
// Show a checkbox offering to suppress further messages if this message is
// being displayed within kJavascriptMessageExpectedDelay of the last one.
if (time_since_last_message <
TimeDelta::FromMilliseconds(kJavascriptMessageExpectedDelay))
show_suppress_checkbox = true;
RunJavascriptMessageBox(this, frame_url, flags, message, default_prompt,
show_suppress_checkbox, reply_msg);
} else {
// If we are suppressing messages, just reply as is if the user immediately
// pressed "Cancel".
OnJavaScriptMessageBoxClosed(reply_msg, false, std::wstring());
}
}
void WebContents::RunBeforeUnloadConfirm(const std::wstring& message,
IPC::Message* reply_msg) {
RunBeforeUnloadDialog(this, message, reply_msg);
}
void WebContents::ShowModalHTMLDialog(const GURL& url, int width, int height,
const std::string& json_arguments,
IPC::Message* reply_msg) {
if (delegate()) {
HtmlDialogUIDelegate* dialog_delegate =
new ModalHtmlDialogDelegate(url, width, height, json_arguments,
reply_msg, this);
delegate()->ShowHtmlDialog(dialog_delegate, NULL);
}
}
void WebContents::PasswordFormsSeen(
const std::vector<PasswordForm>& forms) {
GetPasswordManager()->PasswordFormsSeen(forms);
}
void WebContents::AutofillFormSubmitted(
const AutofillForm& form) {
GetAutofillManager()->AutofillFormSubmitted(form);
}
void WebContents::GetAutofillSuggestions(const std::wstring& field_name,
const std::wstring& user_text, int64 node_id, int request_id) {
GetAutofillManager()->FetchValuesForName(field_name, user_text,
kMaxAutofillMenuItems, node_id, request_id);
}
void WebContents::RemoveAutofillEntry(const std::wstring& field_name,
const std::wstring& value) {
GetAutofillManager()->RemoveValueForName(field_name, value);
}
// Checks to see if we should generate a keyword based on the OSDD, and if
// necessary uses TemplateURLFetcher to download the OSDD and create a keyword.
void WebContents::PageHasOSDD(RenderViewHost* render_view_host,
int32 page_id, const GURL& url,
bool autodetected) {
// Make sure page_id is the current page, and the TemplateURLModel is loaded.
DCHECK(url.is_valid());
if (!IsActiveEntry(page_id))
return;
TemplateURLModel* url_model = profile()->GetTemplateURLModel();
if (!url_model)
return;
if (!url_model->loaded()) {
url_model->Load();
return;
}
if (!profile()->GetTemplateURLFetcher())
return;
if (profile()->IsOffTheRecord())
return;
const NavigationEntry* entry = controller_.GetLastCommittedEntry();
DCHECK(entry);
const NavigationEntry* base_entry = entry;
if (IsFormSubmit(base_entry)) {
// If the current page is a form submit, find the last page that was not
// a form submit and use its url to generate the keyword from.
int index = controller_.last_committed_entry_index() - 1;
while (index >= 0 && IsFormSubmit(controller_.GetEntryAtIndex(index)))
index--;
if (index >= 0)
base_entry = controller_.GetEntryAtIndex(index);
else
base_entry = NULL;
}
// We want to use the user typed URL if available since that represents what
// the user typed to get here, and fall back on the regular URL if not.
if (!base_entry)
return;
GURL keyword_url = base_entry->user_typed_url().is_valid() ?
base_entry->user_typed_url() : base_entry->url();
if (!keyword_url.is_valid())
return;
std::wstring keyword = TemplateURLModel::GenerateKeyword(keyword_url,
autodetected);
if (keyword.empty())
return;
const TemplateURL* template_url =
url_model->GetTemplateURLForKeyword(keyword);
if (template_url && (!template_url->safe_for_autoreplace() ||
template_url->originating_url() == url)) {
// Either there is a user created TemplateURL for this keyword, or the
// keyword has the same OSDD url and we've parsed it.
return;
}
// Download the OpenSearch description document. If this is successful a
// new keyword will be created when done.
#if defined(OS_WIN)
gfx::NativeView ancestor = GetAncestor(view_->GetNativeView(), GA_ROOT);
#else
gfx::NativeView ancestor = NULL;
#endif
profile()->GetTemplateURLFetcher()->ScheduleDownload(
keyword,
url,
base_entry->favicon().url(),
ancestor,
autodetected);
}
void WebContents::InspectElementReply(int num_resources) {
// We have received reply from inspect element request. Notify the
// automation provider in case we need to notify automation client.
NotificationService::current()->Notify(
NotificationType::DOM_INSPECT_ELEMENT_RESPONSE, Source<WebContents>(this),
Details<int>(&num_resources));
}
void WebContents::DidGetPrintedPagesCount(int cookie, int number_pages) {
printing_.DidGetPrintedPagesCount(cookie, number_pages);
}
void WebContents::DidPrintPage(const ViewHostMsg_DidPrintPage_Params& params) {
printing_.DidPrintPage(params);
}
GURL WebContents::GetAlternateErrorPageURL() const {
GURL url;
// Disable alternate error pages when in OffTheRecord/Incognito mode.
if (profile()->IsOffTheRecord())
return url;
PrefService* prefs = profile()->GetPrefs();
DCHECK(prefs);
if (prefs->GetBoolean(prefs::kAlternateErrorPagesEnabled)) {
url = google_util::AppendGoogleLocaleParam(GURL(kLinkDoctorBaseURL));
url = google_util::AppendGoogleTLDParam(url);
}
return url;
}
WebPreferences WebContents::GetWebkitPrefs() {
PrefService* prefs = render_view_host()->process()->profile()->GetPrefs();
bool isDomUI = false;
return RenderViewHostDelegateHelper::GetWebkitPrefs(prefs, isDomUI);
}
void WebContents::OnMissingPluginStatus(int status) {
#if defined(OS_WIN)
// TODO(PORT): pull in when plug-ins work
GetPluginInstaller()->OnMissingPluginStatus(status);
#endif
}
void WebContents::OnCrashedPlugin(const FilePath& plugin_path) {
#if defined(OS_WIN)
// TODO(PORT): pull in when plug-ins work
DCHECK(!plugin_path.value().empty());
std::wstring plugin_name = plugin_path.ToWStringHack();
scoped_ptr<FileVersionInfo> version_info(
FileVersionInfo::CreateFileVersionInfo(plugin_path));
if (version_info.get()) {
const std::wstring& product_name = version_info->product_name();
if (!product_name.empty())
plugin_name = product_name;
}
AddInfoBar(new SimpleAlertInfoBarDelegate(
this, l10n_util::GetStringF(IDS_PLUGIN_CRASHED_PROMPT, plugin_name),
NULL));
#endif
}
void WebContents::OnCrashedWorker() {
AddInfoBar(new SimpleAlertInfoBarDelegate(
this, l10n_util::GetString(IDS_WEBWORKER_CRASHED_PROMPT),
NULL));
}
void WebContents::OnJSOutOfMemory() {
AddInfoBar(new SimpleAlertInfoBarDelegate(
this, l10n_util::GetString(IDS_JS_OUT_OF_MEMORY_PROMPT), NULL));
}
bool WebContents::CanBlur() const {
return delegate() ? delegate()->CanBlur() : true;
}
gfx::Rect WebContents::GetRootWindowResizerRect() const {
if (delegate())
return delegate()->GetRootWindowResizerRect();
return gfx::Rect();
}
void WebContents::RendererUnresponsive(RenderViewHost* rvh,
bool is_during_unload) {
if (is_during_unload) {
// Hang occurred while firing the beforeunload/unload handler.
// Pretend the handler fired so tab closing continues as if it had.
rvh->UnloadListenerHasFired();
if (!render_manager_.ShouldCloseTabOnUnresponsiveRenderer())
return;
// If the tab hangs in the beforeunload/unload handler there's really
// nothing we can do to recover. Pretend the unload listeners have
// all fired and close the tab. If the hang is in the beforeunload handler
// then the user will not have the option of cancelling the close.
Close(rvh);
return;
}
if (render_view_host() && render_view_host()->IsRenderViewLive())
HungRendererWarning::ShowForWebContents(this);
}
void WebContents::RendererResponsive(RenderViewHost* render_view_host) {
HungRendererWarning::HideForWebContents(this);
}
void WebContents::LoadStateChanged(const GURL& url,
net::LoadState load_state) {
load_state_ = load_state;
load_state_host_ = UTF8ToWide(url.host());
if (load_state_ == net::LOAD_STATE_READING_RESPONSE)
SetNotWaitingForResponse();
if (is_loading())
NotifyNavigationStateChanged(INVALIDATE_LOAD | INVALIDATE_FAVICON);
}
void WebContents::OnDidGetApplicationInfo(
int32 page_id,
const webkit_glue::WebApplicationInfo& info) {
if (pending_install_.page_id != page_id)
return; // The user clicked create on a separate page. Ignore this.
pending_install_.callback_functor =
new GearsCreateShortcutCallbackFunctor(this);
GearsCreateShortcut(
info, pending_install_.title, pending_install_.url, pending_install_.icon,
NewCallback(pending_install_.callback_functor,
&GearsCreateShortcutCallbackFunctor::Run));
}
void WebContents::OnEnterOrSpace() {
// See comment in RenderViewHostDelegate::OnEnterOrSpace as to why we do this.
#if defined(OS_WIN)
// TODO(port): this is stubbed in BrowserProcess
DownloadRequestManager* drm = g_browser_process->download_request_manager();
if (drm)
drm->OnUserGesture(this);
#endif
}
void WebContents::OnFindReply(int request_id,
int number_of_matches,
const gfx::Rect& selection_rect,
int active_match_ordinal,
bool final_update) {
// Ignore responses for requests other than the one we have most recently
// issued. That way we won't act on stale results when the user has
// already typed in another query.
if (request_id != current_find_request_id_)
return;
if (number_of_matches == -1)
number_of_matches = find_result_.number_of_matches();
if (active_match_ordinal == -1)
active_match_ordinal = find_result_.active_match_ordinal();
// Notify the UI, automation and any other observers that a find result was
// found.
find_result_ = FindNotificationDetails(request_id, number_of_matches,
selection_rect, active_match_ordinal,
final_update);
NotificationService::current()->Notify(
NotificationType::FIND_RESULT_AVAILABLE,
Source<TabContents>(this),
Details<FindNotificationDetails>(&find_result_));
}
bool WebContents::CanTerminate() const {
if (!delegate())
return true;
return !delegate()->IsExternalTabContainer();
}
void WebContents::FileSelected(const FilePath& path,
int index, void* params) {
render_view_host()->FileSelected(path);
}
void WebContents::MultiFilesSelected(const std::vector<FilePath>& files,
void* params) {
render_view_host()->MultiFilesSelected(files);
}
void WebContents::FileSelectionCanceled(void* params) {
// If the user cancels choosing a file to upload we pass back an
// empty vector.
render_view_host()->MultiFilesSelected(std::vector<FilePath>());
}
void WebContents::BeforeUnloadFiredFromRenderManager(
bool proceed,
bool* proceed_to_fire_unload) {
if (delegate())
delegate()->BeforeUnloadFired(this, proceed, proceed_to_fire_unload);
}
void WebContents::UpdateRenderViewSizeForRenderManager() {
// TODO(brettw) this is a hack. See TabContentsView::SizeContents.
view_->SizeContents(view_->GetContainerSize());
}
DOMUI* WebContents::CreateDOMUIForRenderManager(const GURL& url) {
return DOMUIFactory::CreateDOMUIForURL(this, url);
}
NavigationEntry*
WebContents::GetLastCommittedNavigationEntryForRenderManager() {
return controller_.GetLastCommittedEntry();
}
bool WebContents::CreateRenderViewForRenderManager(
RenderViewHost* render_view_host) {
// When we're running a DOM UI, the RenderViewHost needs to be put in DOM UI
// mode before CreateRenderView is called. When we're asked to create a
// RenderView, that means it's for the pending entry, so we have to use the
// pending DOM UI.
if (render_manager_.pending_dom_ui())
render_view_host->AllowDOMUIBindings();
RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(render_view_host);
if (!render_view_host->CreateRenderView())
return false;
// Now that the RenderView has been created, we need to tell it its size.
rwh_view->SetSize(view_->GetContainerSize());
UpdateMaxPageIDIfNecessary(render_view_host->site_instance(),
render_view_host);
return true;
}
void WebContents::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type.value) {
case NotificationType::BOOKMARK_MODEL_LOADED:
// BookmarkModel finished loading, fall through to update starred state.
case NotificationType::URLS_STARRED: {
// Somewhere, a URL has been starred.
// Ignore notifications for profiles other than our current one.
Profile* source_profile = Source<Profile>(source).ptr();
if (!source_profile || !source_profile->IsSameProfile(profile()))
return;
UpdateStarredStateForCurrentURL();
break;
}
case NotificationType::PREF_CHANGED: {
std::wstring* pref_name_in = Details<std::wstring>(details).ptr();
DCHECK(Source<PrefService>(source).ptr() == profile()->GetPrefs());
if (*pref_name_in == prefs::kAlternateErrorPagesEnabled) {
UpdateAlternateErrorPageURL();
} else if (*pref_name_in == prefs::kDefaultCharset ||
StartsWithASCII(WideToUTF8(*pref_name_in), "webkit.webprefs.", true)
) {
UpdateWebPreferences();
} else {
NOTREACHED() << "unexpected pref change notification" << *pref_name_in;
}
break;
}
case NotificationType::RENDER_WIDGET_HOST_DESTROYED:
view_->RenderWidgetHostDestroyed(Source<RenderWidgetHost>(source).ptr());
break;
case NotificationType::NAV_ENTRY_COMMITTED: {
DCHECK(&controller_ == Source<NavigationController>(source).ptr());
NavigationController::LoadCommittedDetails& committed_details =
*(Details<NavigationController::LoadCommittedDetails>(details).ptr());
ExpireInfoBars(committed_details);
break;
}
default:
NOTREACHED();
}
}
void WebContents::DidNavigateMainFramePostCommit(
const NavigationController::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params) {
// Hide the download shelf if all the following conditions are true:
// - there are no active downloads.
// - this is a navigation to a different TLD.
// - at least 5 seconds have elapsed since the download shelf was shown.
// TODO(jcampan): bug 1156075 when user gestures are reliable, they should
// be used to ensure we are hiding only on user initiated
// navigations.
DownloadManager* download_manager = profile()->GetDownloadManager();
// download_manager can be NULL in unit test context.
if (download_manager && download_manager->in_progress_count() == 0 &&
!details.previous_url.is_empty() &&
!net::RegistryControlledDomainService::SameDomainOrHost(
details.previous_url, details.entry->url())) {
TimeDelta time_delta(
TimeTicks::Now() - last_download_shelf_show_);
if (time_delta >
TimeDelta::FromMilliseconds(kDownloadShelfHideDelay)) {
SetDownloadShelfVisible(false);
}
}
if (details.is_user_initiated_main_frame_load()) {
// Clear the status bubble. This is a workaround for a bug where WebKit
// doesn't let us know that the cursor left an element during a
// transition (this is also why the mouse cursor remains as a hand after
// clicking on a link); see bugs 1184641 and 980803. We don't want to
// clear the bubble when a user navigates to a named anchor in the same
// page.
UpdateTargetURL(details.entry->page_id(), GURL());
// UpdateHelpersForDidNavigate will handle the case where the password_form
// origin is valid.
// TODO(brettw) bug 1343111: Password manager stuff in here needs to be
// cleaned up and covered by tests.
if (!params.password_form.origin.is_valid())
GetPasswordManager()->DidNavigate();
}
// The keyword generator uses the navigation entries, so must be called after
// the commit.
GenerateKeywordIfNecessary(params);
// Allow the new page to set the title again.
received_page_title_ = false;
// Get the favicon, either from history or request it from the net.
fav_icon_helper_.FetchFavIcon(details.entry->url());
// Close constrained popups if necessary.
MaybeCloseChildWindows(details.previous_url, details.entry->url());
// Update the starred state.
UpdateStarredStateForCurrentURL();
}
void WebContents::DidNavigateAnyFramePostCommit(
RenderViewHost* render_view_host,
const NavigationController::LoadCommittedDetails& details,
const ViewHostMsg_FrameNavigate_Params& params) {
// If we navigate, start showing messages again. This does nothing to prevent
// a malicious script from spamming messages, since the script could just
// reload the page to stop blocking.
suppress_javascript_messages_ = false;
// Update history. Note that this needs to happen after the entry is complete,
// which WillNavigate[Main,Sub]Frame will do before this function is called.
if (params.should_update_history) {
// Most of the time, the displayURL matches the loaded URL, but for about:
// URLs, we use a data: URL as the real value. We actually want to save
// the about: URL to the history db and keep the data: URL hidden. This is
// what the TabContents' URL getter does.
UpdateHistoryForNavigation(GetURL(), params);
}
// Notify the password manager of the navigation or form submit.
// TODO(brettw) bug 1343111: Password manager stuff in here needs to be
// cleaned up and covered by tests.
if (params.password_form.origin.is_valid())
GetPasswordManager()->ProvisionallySavePassword(params.password_form);
}
void WebContents::MaybeCloseChildWindows(const GURL& previous_url,
const GURL& current_url) {
if (net::RegistryControlledDomainService::SameDomainOrHost(
previous_url, current_url))
return;
// Clear out any child windows since we are leaving this page entirely.
// We use indices instead of iterators in case CloseWindow does something
// that may invalidate an iterator.
int size = static_cast<int>(child_windows_.size());
for (int i = size - 1; i >= 0; --i) {
ConstrainedWindow* window = child_windows_[i];
if (window)
window->CloseConstrainedWindow();
}
}
void WebContents::UpdateStarredStateForCurrentURL() {
BookmarkModel* model = profile()->GetBookmarkModel();
const bool old_state = is_starred_;
is_starred_ = (model && model->IsBookmarked(GetURL()));
if (is_starred_ != old_state && delegate())
delegate()->URLStarredChanged(this, is_starred_);
}
void WebContents::UpdateAlternateErrorPageURL() {
GURL url = GetAlternateErrorPageURL();
render_view_host()->SetAlternateErrorPageURL(url);
}
void WebContents::UpdateWebPreferences() {
render_view_host()->UpdateWebPreferences(GetWebkitPrefs());
}
void WebContents::UpdateMaxPageIDIfNecessary(SiteInstance* site_instance,
RenderViewHost* rvh) {
// If we are creating a RVH for a restored controller, then we might
// have more page IDs than the SiteInstance's current max page ID. We must
// make sure that the max page ID is larger than any restored page ID.
// Note that it is ok for conflicting page IDs to exist in another tab
// (i.e., NavigationController), but if any page ID is larger than the max,
// the back/forward list will get confused.
int max_restored_page_id = controller_.max_restored_page_id();
if (max_restored_page_id > 0) {
int curr_max_page_id = site_instance->max_page_id();
if (max_restored_page_id > curr_max_page_id) {
// Need to update the site instance immediately.
site_instance->UpdateMaxPageID(max_restored_page_id);
// Also tell the renderer to update its internal representation. We
// need to reserve enough IDs to make all restored page IDs less than
// the max.
if (curr_max_page_id < 0)
curr_max_page_id = 0;
rvh->ReservePageIDRange(max_restored_page_id - curr_max_page_id);
}
}
}
void WebContents::UpdateHistoryForNavigation(
const GURL& display_url,
const ViewHostMsg_FrameNavigate_Params& params) {
if (profile()->IsOffTheRecord())
return;
// Add to history service.
HistoryService* hs = profile()->GetHistoryService(Profile::IMPLICIT_ACCESS);
if (hs) {
if (PageTransition::IsMainFrame(params.transition) &&
display_url != params.url) {
// Hack on the "display" URL so that it will appear in history. For some
// types of URLs, we will display a magic URL that is different from where
// the page is actually navigated. We want the user to see in history
// what they saw in the URL bar, so we add the display URL as a redirect.
// This only applies to the main frame, as the display URL doesn't apply
// to sub-frames.
std::vector<GURL> redirects = params.redirects;
if (!redirects.empty())
redirects.back() = display_url;
hs->AddPage(display_url, this, params.page_id, params.referrer,
params.transition, redirects);
} else {
hs->AddPage(params.url, this, params.page_id, params.referrer,
params.transition, params.redirects);
}
}
}
bool WebContents::UpdateTitleForEntry(NavigationEntry* entry,
const std::wstring& title) {
// For file URLs without a title, use the pathname instead. In the case of a
// synthesized title, we don't want the update to count toward the "one set
// per page of the title to history."
std::wstring final_title;
bool explicit_set;
if (entry->url().SchemeIsFile() && title.empty()) {
final_title = UTF8ToWide(entry->url().ExtractFileName());
explicit_set = false; // Don't count synthetic titles toward the set limit.
} else {
TrimWhitespace(title, TRIM_ALL, &final_title);
explicit_set = true;
}
if (final_title == UTF16ToWideHack(entry->title()))
return false; // Nothing changed, don't bother.
entry->set_title(WideToUTF16Hack(final_title));
// Update the history system for this page.
if (!profile()->IsOffTheRecord() && !received_page_title_) {
HistoryService* hs =
profile()->GetHistoryService(Profile::IMPLICIT_ACCESS);
if (hs)
hs->SetPageTitle(entry->display_url(), final_title);
// Don't allow the title to be saved again for explicitly set ones.
received_page_title_ = explicit_set;
}
// Lastly, set the title for the view.
view_->SetPageTitle(final_title);
return true;
}
void WebContents::NotifySwapped() {
// After sending out a swap notification, we need to send a disconnect
// notification so that clients that pick up a pointer to |this| can NULL the
// pointer. See Bug 1230284.
notify_disconnection_ = true;
NotificationService::current()->Notify(
NotificationType::WEB_CONTENTS_SWAPPED,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContents::NotifyConnected() {
notify_disconnection_ = true;
NotificationService::current()->Notify(
NotificationType::WEB_CONTENTS_CONNECTED,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContents::NotifyDisconnected() {
if (!notify_disconnection_)
return;
notify_disconnection_ = false;
NotificationService::current()->Notify(
NotificationType::WEB_CONTENTS_DISCONNECTED,
Source<WebContents>(this),
NotificationService::NoDetails());
}
void WebContents::GenerateKeywordIfNecessary(
const ViewHostMsg_FrameNavigate_Params& params) {
if (!params.searchable_form_url.is_valid())
return;
if (profile()->IsOffTheRecord())
return;
int last_index = controller_.last_committed_entry_index();
// When there was no previous page, the last index will be 0. This is
// normally due to a form submit that opened in a new tab.
// TODO(brettw) bug 916126: we should support keywords when form submits
// happen in new tabs.
if (last_index <= 0)
return;
const NavigationEntry* previous_entry =
controller_.GetEntryAtIndex(last_index - 1);
if (IsFormSubmit(previous_entry)) {
// Only generate a keyword if the previous page wasn't itself a form
// submit.
return;
}
GURL keyword_url = previous_entry->user_typed_url().is_valid() ?
previous_entry->user_typed_url() : previous_entry->url();
std::wstring keyword =
TemplateURLModel::GenerateKeyword(keyword_url, true); // autodetected
if (keyword.empty())
return;
TemplateURLModel* url_model = profile()->GetTemplateURLModel();
if (!url_model)
return;
if (!url_model->loaded()) {
url_model->Load();
return;
}
const TemplateURL* current_url;
std::wstring url = UTF8ToWide(params.searchable_form_url.spec());
if (!url_model->CanReplaceKeyword(keyword, url, ¤t_url))
return;
if (current_url) {
if (current_url->originating_url().is_valid()) {
// The existing keyword was generated from an OpenSearch description
// document, don't regenerate.
return;
}
url_model->Remove(current_url);
}
TemplateURL* new_url = new TemplateURL();
new_url->set_keyword(keyword);
new_url->set_short_name(keyword);
new_url->SetURL(url, 0, 0);
new_url->add_input_encoding(params.searchable_form_encoding);
DCHECK(controller_.GetLastCommittedEntry());
const GURL& favicon_url =
controller_.GetLastCommittedEntry()->favicon().url();
if (favicon_url.is_valid()) {
new_url->SetFavIconURL(favicon_url);
} else {
// The favicon url isn't valid. This means there really isn't a favicon,
// or the favicon url wasn't obtained before the load started. This assumes
// the later.
// TODO(sky): Need a way to set the favicon that doesn't involve generating
// its url.
new_url->SetFavIconURL(TemplateURL::GenerateFaviconURL(params.referrer));
}
new_url->set_safe_for_autoreplace(true);
url_model->Add(new_url);
}
DOMUI* WebContents::GetDOMUIForCurrentState() {
// When there is a pending navigation entry, we want to use the pending DOMUI
// that goes along with it to control the basic flags. For example, we want to
// show the pending URL in the URL bar, so we want the display_url flag to
// be from the pending entry.
//
// The confusion comes because there are multiple possibilities for the
// initial load in a tab as a side effect of the way the RenderViewHostManager
// works.
//
// - For the very first tab the load looks "normal". The new tab DOM UI is
// the pending one, and we want it to apply here.
//
// - For subsequent new tabs, they'll get a new SiteInstance which will then
// get switched to the one previously associated with the new tab pages.
// This switching will cause the manager to commit the RVH/DOMUI. So we'll
// have a committed DOM UI in this case.
//
// This condition handles all of these cases:
//
// - First load in first tab: no committed nav entry + pending nav entry +
// pending dom ui:
// -> Use pending DOM UI if any.
//
// - First load in second tab: no committed nav entry + pending nav entry +
// no pending DOM UI:
// -> Use the committed DOM UI if any.
//
// - Second navigation in any tab: committed nav entry + pending nav entry:
// -> Use pending DOM UI if any.
//
// - Normal state with no load: committed nav entry + no pending nav entry:
// -> Use committed DOM UI.
if (controller_.pending_entry() &&
(controller_.GetLastCommittedEntry() ||
render_manager_.pending_dom_ui()))
return render_manager_.pending_dom_ui();
return render_manager_.dom_ui();
}