/*
* Copyright 2007 Google Inc. All Rights Reserved.
*
* Portions Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
*
* ***** BEGIN LICENSE BLOCK *****
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ***** END LICENSE BLOCK *****
*
*/
#include "config.h"
#include "build/build_config.h"
#include "base/compiler_specific.h"
MSVC_PUSH_WARNING_LEVEL(0);
#include "CSSStyleSelector.h"
#include "CSSValueKeywords.h"
#include "Cursor.h"
#include "Document.h"
#include "DocumentLoader.h"
#include "DragController.h"
#include "DragData.h"
#include "Editor.h"
#include "EventHandler.h"
#include "FocusController.h"
#include "FontDescription.h"
#include "FrameLoader.h"
#include "FrameTree.h"
#include "FrameView.h"
#include "GraphicsContext.h"
#include "HTMLNames.h"
#include "HTMLInputElement.h"
#include "HitTestResult.h"
#include "Image.h"
#include "InspectorController.h"
#include "IntRect.h"
#include "KeyboardCodes.h"
#include "KeyboardEvent.h"
#include "MIMETypeRegistry.h"
#include "NodeRenderStyle.h"
#include "Page.h"
#include "PlatformContextSkia.h"
#include "PlatformKeyboardEvent.h"
#include "PlatformMouseEvent.h"
#include "PlatformWheelEvent.h"
#include "PluginInfoStore.h"
#include "PopupMenuChromium.h"
#include "PopupMenuClient.h"
#if defined(OS_WIN)
#include "RenderThemeChromiumWin.h"
#endif
#include "RenderView.h"
#include "ResourceHandle.h"
#include "SelectionController.h"
#include "Settings.h"
#include "TypingCommand.h"
MSVC_POP_WARNING();
#undef LOG
#include "base/gfx/rect.h"
#include "base/keyboard_codes.h"
#include "base/logging.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "third_party/WebKit/WebKit/chromium/public/WebDragData.h"
#include "third_party/WebKit/WebKit/chromium/public/WebInputEvent.h"
#include "third_party/WebKit/WebKit/chromium/public/WebPoint.h"
#include "webkit/glue/chrome_client_impl.h"
#include "webkit/glue/context_menu_client_impl.h"
#include "webkit/glue/dom_operations.h"
#include "webkit/glue/dragclient_impl.h"
#include "webkit/glue/editor_client_impl.h"
#include "webkit/glue/event_conversion.h"
#include "webkit/glue/glue_serialize.h"
#include "webkit/glue/glue_util.h"
#include "webkit/glue/image_resource_fetcher.h"
#include "webkit/glue/inspector_client_impl.h"
#include "webkit/glue/searchable_form_data.h"
#include "webkit/glue/webdevtoolsagent_impl.h"
#include "webkit/glue/webdropdata.h"
#include "webkit/glue/webhistoryitem_impl.h"
#include "webkit/glue/webkit_glue.h"
#include "webkit/glue/webpreferences.h"
#include "webkit/glue/webdevtoolsagent.h"
#include "webkit/glue/webdevtoolsclient.h"
#include "webkit/glue/webview_delegate.h"
#include "webkit/glue/webview_impl.h"
#include "webkit/glue/webwidget_impl.h"
// Get rid of WTF's pow define so we can use std::pow.
#undef pow
#include <cmath> // for std::pow
using namespace WebCore;
using WebKit::WebDragData;
using WebKit::WebInputEvent;
using WebKit::WebKeyboardEvent;
using WebKit::WebMouseEvent;
using WebKit::WebMouseWheelEvent;
using WebKit::WebPoint;
using WebKit::WebRect;
using WebKit::WebSize;
// Change the text zoom level by kTextSizeMultiplierRatio each time the user
// zooms text in or out (ie., change by 20%). The min and max values limit
// text zoom to half and 3x the original text size. These three values match
// those in Apple's port in WebKit/WebKit/WebView/WebView.mm
static const double kTextSizeMultiplierRatio = 1.2;
static const double kMinTextSizeMultiplier = 0.5;
static const double kMaxTextSizeMultiplier = 3.0;
// The webcore drag operation type when something is trying to be dropped on
// the webview. These values are taken from Apple's windows port.
static const WebCore::DragOperation kDropTargetOperation =
static_cast<WebCore::DragOperation>(DragOperationCopy | DragOperationLink);
// AutocompletePopupMenuClient
class AutocompletePopupMenuClient : public WebCore::PopupMenuClient {
public:
AutocompletePopupMenuClient(WebViewImpl* webview) : text_field_(NULL),
selected_index_(0),
webview_(webview) {
}
void Init(WebCore::HTMLInputElement* text_field,
const std::vector<std::wstring>& suggestions,
int default_suggestion_index) {
DCHECK(default_suggestion_index < static_cast<int>(suggestions.size()));
text_field_ = text_field;
selected_index_ = default_suggestion_index;
SetSuggestions(suggestions);
FontDescription font_description;
#if defined(OS_WIN)
theme()->systemFont(CSSValueWebkitControl, font_description);
#else
NOTIMPLEMENTED();
#endif
// Use a smaller font size to match IE/Firefox.
// TODO(jcampan): http://crbug.com/7376 use the system size instead of a
// fixed font size value.
font_description.setComputedSize(12.0);
Font font(font_description, 0, 0);
font.update(text_field->document()->styleSelector()->fontSelector());
style_.reset(new PopupMenuStyle(Color::black, Color::white, font, true,
Length(WebCore::Fixed), LTR));
}
virtual ~AutocompletePopupMenuClient() {
}
// WebCore::PopupMenuClient implementation.
virtual void valueChanged(unsigned listIndex, bool fireEvents = true) {
text_field_->setValue(suggestions_[listIndex]);
}
virtual WebCore::String itemText(unsigned list_index) const {
return suggestions_[list_index];
}
virtual bool itemIsEnabled(unsigned listIndex) const {
return true;
}
virtual PopupMenuStyle itemStyle(unsigned listIndex) const {
return *style_;
}
virtual PopupMenuStyle menuStyle() const {
return *style_;
}
virtual int clientInsetLeft() const {
return 0;
}
virtual int clientInsetRight() const {
return 0;
}
virtual int clientPaddingLeft() const {
#if defined(OS_WIN)
// Bug http://crbug.com/7708 seems to indicate the style can be NULL.
WebCore::RenderStyle* style = GetTextFieldStyle();
return style ? theme()->popupInternalPaddingLeft(style) : 0;
#else
NOTIMPLEMENTED();
return 0;
#endif
}
virtual int clientPaddingRight() const {
#if defined(OS_WIN)
// Bug http://crbug.com/7708 seems to indicate the style can be NULL.
WebCore::RenderStyle* style = GetTextFieldStyle();
return style ? theme()->popupInternalPaddingRight(style) : 0;
#else
NOTIMPLEMENTED();
return 0;
#endif
}
virtual int listSize() const {
return suggestions_.size();
}
virtual int selectedIndex() const {
return selected_index_;
}
virtual void hidePopup() {
webview_->HideAutoCompletePopup();
}
virtual bool itemIsSeparator(unsigned listIndex) const {
return false;
}
virtual bool itemIsLabel(unsigned listIndex) const {
return false;
}
virtual bool itemIsSelected(unsigned listIndex) const {
return false;
}
virtual bool shouldPopOver() const {
return false;
}
virtual bool valueShouldChangeOnHotTrack() const {
return false;
}
virtual FontSelector* fontSelector() const {
return text_field_->document()->styleSelector()->fontSelector();
}
virtual void setTextFromItem(unsigned listIndex) {
text_field_->setValue(suggestions_[listIndex]);
}
virtual HostWindow* hostWindow() const {
return text_field_->document()->view()->hostWindow();
}
virtual PassRefPtr<Scrollbar> createScrollbar(
ScrollbarClient* client,
ScrollbarOrientation orientation,
ScrollbarControlSize size) {
RefPtr<Scrollbar> widget = Scrollbar::createNativeScrollbar(client,
orientation,
size);
return widget.release();
}
// AutocompletePopupMenuClient specific methods:
void SetSuggestions(const std::vector<std::wstring>& suggestions) {
suggestions_.clear();
for (std::vector<std::wstring>::const_iterator iter = suggestions.begin();
iter != suggestions.end(); ++iter) {
suggestions_.push_back(webkit_glue::StdWStringToString(*iter));
}
// Try to preserve selection if possible.
if (selected_index_ >= static_cast<int>(suggestions.size()))
selected_index_ = -1;
}
void RemoveItemAtIndex(int index) {
DCHECK(index >= 0 && index < static_cast<int>(suggestions_.size()));
suggestions_.erase(suggestions_.begin() + index);
}
WebCore::HTMLInputElement* text_field() const {
return text_field_.get();
}
WebCore::RenderStyle* GetTextFieldStyle() const {
WebCore::RenderStyle* style = text_field_->computedStyle();
if (!style) {
// It seems we can only have an NULL style in a TextField if the node is
// dettached, in which case we the popup shoud not be showing.
NOTREACHED() << "Please report this in http://crbug.com/7708 and include "
"the page you were visiting.";
}
return style;
}
private:
RefPtr<WebCore::HTMLInputElement> text_field_;
std::vector<WebCore::String> suggestions_;
int selected_index_;
WebViewImpl* webview_;
scoped_ptr<PopupMenuStyle> style_;
};
// Note that focusOnShow is false so that the autocomplete popup is shown not
// activated. We need the page to still have focus so the user can keep typing
// while the popup is showing.
static const WebCore::PopupContainerSettings kAutocompletePopupSettings = {
false, // focusOnShow
false, // setTextOnIndexChange
false, // acceptOnAbandon
true, // loopSelectionNavigation
};
// WebView ----------------------------------------------------------------
/*static*/
WebView* WebView::Create(WebViewDelegate* delegate,
const WebPreferences& prefs) {
WebViewImpl* instance = new WebViewImpl();
instance->AddRef();
instance->SetPreferences(prefs);
// Here, we construct a new WebFrameImpl with a reference count of 0. That
// is bumped up to 1 by InitMainFrame. The reference count is decremented
// when the corresponding WebCore::Frame object is destroyed.
WebFrameImpl* main_frame = new WebFrameImpl();
main_frame->InitMainFrame(instance);
// Set the delegate after initializing the main frame, to avoid trying to
// respond to notifications before we're fully initialized.
instance->delegate_ = delegate;
WebDevToolsAgentDelegate* tools_delegate =
delegate->GetWebDevToolsAgentDelegate();
if (tools_delegate) {
instance->devtools_agent_.reset(
new WebDevToolsAgentImpl(instance, tools_delegate));
}
// Restrict the access to the local file system
// (see WebView.mm WebView::_commonInitializationWithFrameName).
FrameLoader::setLocalLoadPolicy(
FrameLoader::AllowLocalLoadsForLocalOnly);
return instance;
}
WebViewImpl::WebViewImpl()
: ALLOW_THIS_IN_INITIALIZER_LIST(back_forward_list_client_impl_(this)),
observed_new_navigation_(false),
#ifndef NDEBUG
new_navigation_loader_(NULL),
#endif
zoom_level_(0),
context_menu_allowed_(false),
doing_drag_and_drop_(false),
ignore_input_events_(false),
suppress_next_keypress_event_(false),
window_open_disposition_(IGNORE_ACTION),
ime_accept_events_(true),
drag_target_dispatch_(false),
drag_identity_(0),
drop_effect_(DROP_EFFECT_DEFAULT),
drop_accept_(false),
autocomplete_popup_showing_(false),
is_transparent_(false) {
// WebKit/win/WebView.cpp does the same thing, except they call the
// KJS specific wrapper around this method. We need to have threading
// initialized because CollatorICU requires it.
WTF::initializeThreading();
// set to impossible point so we always get the first mouse pos
last_mouse_position_ = WebPoint(-1, -1);
// the page will take ownership of the various clients
page_.reset(new Page(new ChromeClientImpl(this),
new ContextMenuClientImpl(this),
new EditorClientImpl(this),
new DragClientImpl(this),
new WebInspectorClient(this)));
page_->backForwardList()->setClient(&back_forward_list_client_impl_);
// The group name identifies a namespace of pages. I'm not sure how it's
// intended to be used, but keeping all pages in the same group works for us.
page_->setGroupName("default");
}
WebViewImpl::~WebViewImpl() {
DCHECK(page_ == NULL);
ReleaseFocusReferences();
for (std::set<ImageResourceFetcher*>::iterator i = image_fetchers_.begin();
i != image_fetchers_.end(); ++i) {
delete *i;
}
}
void WebViewImpl::SetUseEditorDelegate(bool value) {
ASSERT(page_ != 0); // The macro doesn't like (!page_) with a scoped_ptr.
ASSERT(page_->editorClient());
EditorClientImpl* editor_client =
static_cast<EditorClientImpl*>(page_->editorClient());
editor_client->SetUseEditorDelegate(value);
}
void WebViewImpl::SetTabKeyCyclesThroughElements(bool value) {
if (page_ != NULL) {
page_->setTabKeyCyclesThroughElements(value);
}
}
void WebViewImpl::MouseMove(const WebMouseEvent& event) {
if (!main_frame() || !main_frame()->frameview())
return;
last_mouse_position_ = WebPoint(event.x, event.y);
// We call mouseMoved here instead of handleMouseMovedEvent because we need
// our ChromeClientImpl to receive changes to the mouse position and
// tooltip text, and mouseMoved handles all of that.
main_frame()->frame()->eventHandler()->mouseMoved(
MakePlatformMouseEvent(main_frame()->frameview(), event));
}
void WebViewImpl::MouseLeave(const WebMouseEvent& event) {
// This event gets sent as the main frame is closing. In that case, just
// ignore it.
if (!main_frame() || !main_frame()->frameview())
return;
delegate_->UpdateTargetURL(this, GURL());
main_frame()->frame()->eventHandler()->handleMouseMoveEvent(
MakePlatformMouseEvent(main_frame()->frameview(), event));
}
void WebViewImpl::MouseDown(const WebMouseEvent& event) {
if (!main_frame() || !main_frame()->frameview())
return;
last_mouse_down_point_ = gfx::Point(event.x, event.y);
// If a text field that has focus is clicked again, we should display the
// autocomplete popup.
RefPtr<Node> clicked_node;
if (event.button == WebMouseEvent::ButtonLeft) {
RefPtr<Node> focused_node = GetFocusedNode();
if (focused_node.get() &&
webkit_glue::NodeToHTMLInputElement(focused_node.get())) {
IntPoint point(event.x, event.y);
HitTestResult result(point);
result = page_->mainFrame()->eventHandler()->hitTestResultAtPoint(point,
false);
if (result.innerNonSharedNode() == focused_node) {
// Already focused text field was clicked, let's remember this. If
// focus has not changed after the mouse event is processed, we'll
// trigger the autocomplete.
clicked_node = focused_node;
}
}
}
main_frame()->frame()->eventHandler()->handleMousePressEvent(
MakePlatformMouseEvent(main_frame()->frameview(), event));
if (clicked_node.get() && clicked_node == GetFocusedNode()) {
// Focus has not changed, show the autocomplete popup.
static_cast<EditorClientImpl*>(page_->editorClient())->
ShowFormAutofillForNode(clicked_node.get());
}
// Dispatch the contextmenu event regardless of if the click was swallowed.
// On Windows, we handle it on mouse up, not down.
#if defined(OS_MACOSX)
if (event.button == WebMouseEvent::ButtonRight ||
(event.button == WebMouseEvent::ButtonLeft &&
event.modifiers & WebMouseEvent::ControlKey)) {
MouseContextMenu(event);
}
#elif defined(OS_LINUX)
if (event.button == WebMouseEvent::ButtonRight)
MouseContextMenu(event);
#endif
#if defined(OS_LINUX)
// If the event was a middle click, attempt to copy text into the focused
// frame.
if (event.button == WebMouseEvent::ButtonMiddle) {
Frame* focused = GetFocusedWebCoreFrame();
if (!focused)
return;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return;
delegate_->PasteFromSelectionClipboard();
}
#endif
}
void WebViewImpl::MouseContextMenu(const WebMouseEvent& event) {
if (!main_frame() || !main_frame()->frameview())
return;
page_->contextMenuController()->clearContextMenu();
MakePlatformMouseEvent pme(main_frame()->frameview(), event);
// Find the right target frame. See issue 1186900.
HitTestResult result = HitTestResultForWindowPos(pme.pos());
Frame* target_frame;
if (result.innerNonSharedNode())
target_frame = result.innerNonSharedNode()->document()->frame();
else
target_frame = page_->focusController()->focusedOrMainFrame();
#if defined(OS_WIN)
target_frame->view()->setCursor(pointerCursor());
#endif
context_menu_allowed_ = true;
target_frame->eventHandler()->sendContextMenuEvent(pme);
context_menu_allowed_ = false;
// Actually showing the context menu is handled by the ContextMenuClient
// implementation...
}
void WebViewImpl::MouseUp(const WebMouseEvent& event) {
if (!main_frame() || !main_frame()->frameview())
return;
MouseCaptureLost();
main_frame()->frame()->eventHandler()->handleMouseReleaseEvent(
MakePlatformMouseEvent(main_frame()->frameview(), event));
#if defined(OS_WIN)
// Dispatch the contextmenu event regardless of if the click was swallowed.
// On Mac/Linux, we handle it on mouse down, not up.
if (event.button == WebMouseEvent::ButtonRight)
MouseContextMenu(event);
#endif
}
void WebViewImpl::MouseWheel(const WebMouseWheelEvent& event) {
MakePlatformWheelEvent platform_event(main_frame()->frameview(), event);
main_frame()->frame()->eventHandler()->handleWheelEvent(platform_event);
}
bool WebViewImpl::KeyEvent(const WebKeyboardEvent& event) {
DCHECK((event.type == WebInputEvent::RawKeyDown) ||
(event.type == WebInputEvent::KeyDown) ||
(event.type == WebInputEvent::KeyUp));
// Please refer to the comments explaining the suppress_next_keypress_event_
// member.
// The suppress_next_keypress_event_ is set if the KeyDown is handled by
// Webkit. A keyDown event is typically associated with a keyPress(char)
// event and a keyUp event. We reset this flag here as this is a new keyDown
// event.
suppress_next_keypress_event_ = false;
// Give autocomplete a chance to consume the key events it is interested in.
if (AutocompleteHandleKeyEvent(event))
return true;
Frame* frame = GetFocusedWebCoreFrame();
if (!frame)
return false;
EventHandler* handler = frame->eventHandler();
if (!handler)
return KeyEventDefault(event);
#if defined(OS_WIN)
// TODO(pinkerton): figure out these keycodes on non-windows
if (((event.modifiers == 0) && (event.windowsKeyCode == VK_APPS)) ||
((event.modifiers == WebInputEvent::ShiftKey) &&
(event.windowsKeyCode == VK_F10))) {
SendContextMenuEvent(event);
return true;
}
#endif
MakePlatformKeyboardEvent evt(event);
if (WebInputEvent::RawKeyDown == event.type) {
if (handler->keyEvent(evt) && !evt.isSystemKey()) {
suppress_next_keypress_event_ = true;
return true;
}
} else {
if (handler->keyEvent(evt)) {
return true;
}
}
return KeyEventDefault(event);
}
bool WebViewImpl::AutocompleteHandleKeyEvent(const WebKeyboardEvent& event) {
if (!autocomplete_popup_showing_ ||
// Home and End should be left to the text field to process.
event.windowsKeyCode == base::VKEY_HOME ||
event.windowsKeyCode == base::VKEY_END) {
return false;
}
// Pressing delete triggers the removal of the selected suggestion from the
// DB.
if (event.windowsKeyCode == base::VKEY_DELETE &&
autocomplete_popup_->selectedIndex() != -1) {
Node* node = GetFocusedNode();
if (!node || (node->nodeType() != WebCore::Node::ELEMENT_NODE)) {
NOTREACHED();
return false;
}
WebCore::Element* element = static_cast<WebCore::Element*>(node);
if (!element->hasLocalName(WebCore::HTMLNames::inputTag)) {
NOTREACHED();
return false;
}
int selected_index = autocomplete_popup_->selectedIndex();
WebCore::HTMLInputElement* input_element =
static_cast<WebCore::HTMLInputElement*>(element);
std::wstring name = webkit_glue::StringToStdWString(input_element->name());
std::wstring value = webkit_glue::StringToStdWString(
autocomplete_popup_client_->itemText(selected_index ));
delegate()->RemoveStoredAutofillEntry(name, value);
// Update the entries in the currently showing popup to reflect the
// deletion.
autocomplete_popup_client_->RemoveItemAtIndex(selected_index);
RefreshAutofillPopup();
return false;
}
if (!autocomplete_popup_->isInterestedInEventForKey(event.windowsKeyCode))
return false;
if (autocomplete_popup_->handleKeyEvent(MakePlatformKeyboardEvent(event))) {
#if defined(OS_WIN)
// We need to ignore the next Char event after this otherwise pressing
// enter when selecting an item in the menu will go to the page.
if (WebInputEvent::RawKeyDown == event.type)
suppress_next_keypress_event_ = true;
#endif
return true;
}
return false;
}
bool WebViewImpl::CharEvent(const WebKeyboardEvent& event) {
DCHECK(event.type == WebInputEvent::Char);
// Please refer to the comments explaining the suppress_next_keypress_event_
// member.
// The suppress_next_keypress_event_ is set if the KeyDown is handled by
// Webkit. A keyDown event is typically associated with a keyPress(char)
// event and a keyUp event. We reset this flag here as it only applies
// to the current keyPress event.
if (suppress_next_keypress_event_) {
suppress_next_keypress_event_ = false;
return true;
}
Frame* frame = GetFocusedWebCoreFrame();
if (!frame)
return false;
EventHandler* handler = frame->eventHandler();
if (!handler)
return KeyEventDefault(event);
MakePlatformKeyboardEvent evt(event);
if (!evt.IsCharacterKey())
return true;
// Safari 3.1 does not pass off windows system key messages (WM_SYSCHAR) to
// the eventHandler::keyEvent. We mimic this behavior on all platforms since
// for now we are converting other platform's key events to windows key
// events.
if (evt.isSystemKey())
return handler->handleAccessKey(evt);
if (!handler->keyEvent(evt))
return KeyEventDefault(event);
return true;
}
/*
* The WebViewImpl::SendContextMenuEvent function is based on the Webkit
* function
* bool WebView::handleContextMenuEvent(WPARAM wParam, LPARAM lParam) in
* webkit\webkit\win\WebView.cpp. The only significant change in this
* function is the code to convert from a Keyboard event to the Right
* Mouse button up event.
*
* This function is an ugly copy/paste and should be cleaned up when the
* WebKitWin version is cleaned: https://bugs.webkit.org/show_bug.cgi?id=20438
*/
#if defined(OS_WIN)
// TODO(pinkerton): implement on non-windows
bool WebViewImpl::SendContextMenuEvent(const WebKeyboardEvent& event) {
static const int kContextMenuMargin = 1;
Frame* main_frame = page()->mainFrame();
FrameView* view = main_frame->view();
if (!view)
return false;
IntPoint coords(-1, -1);
int right_aligned = ::GetSystemMetrics(SM_MENUDROPALIGNMENT);
IntPoint location;
// The context menu event was generated from the keyboard, so show the
// context menu by the current selection.
Position start = main_frame->selection()->selection().start();
Position end = main_frame->selection()->selection().end();
if (!start.node() || !end.node()) {
location =
IntPoint(right_aligned ? view->contentsWidth() - kContextMenuMargin
: kContextMenuMargin, kContextMenuMargin);
} else {
RenderObject* renderer = start.node()->renderer();
if (!renderer)
return false;
RefPtr<Range> selection = main_frame->selection()->toNormalizedRange();
IntRect first_rect = main_frame->firstRectForRange(selection.get());
int x = right_aligned ? first_rect.right() : first_rect.x();
location = IntPoint(x, first_rect.bottom());
}
location = view->contentsToWindow(location);
// FIXME: The IntSize(0, -1) is a hack to get the hit-testing to result in
// the selected element. Ideally we'd have the position of a context menu
// event be separate from its target node.
coords = location + IntSize(0, -1);
// The contextMenuController() holds onto the last context menu that was
// popped up on the page until a new one is created. We need to clear
// this menu before propagating the event through the DOM so that we can
// detect if we create a new menu for this event, since we won't create
// a new menu if the DOM swallows the event and the defaultEventHandler does
// not run.
page()->contextMenuController()->clearContextMenu();
Frame* focused_frame = page()->focusController()->focusedOrMainFrame();
focused_frame->view()->setCursor(pointerCursor());
WebMouseEvent mouse_event;
mouse_event.button = WebMouseEvent::ButtonRight;
mouse_event.x = coords.x();
mouse_event.y = coords.y();
mouse_event.type = WebInputEvent::MouseUp;
MakePlatformMouseEvent platform_event(view, mouse_event);
context_menu_allowed_ = true;
bool handled =
focused_frame->eventHandler()->sendContextMenuEvent(platform_event);
context_menu_allowed_ = false;
return handled;
}
#endif
bool WebViewImpl::KeyEventDefault(const WebKeyboardEvent& event) {
Frame* frame = GetFocusedWebCoreFrame();
if (!frame)
return false;
switch (event.type) {
case WebInputEvent::Char: {
if (event.windowsKeyCode == VKEY_SPACE) {
int key_code = ((event.modifiers & WebInputEvent::ShiftKey) ?
VKEY_PRIOR : VKEY_NEXT);
return ScrollViewWithKeyboard(key_code);
}
break;
}
#if defined(OS_WIN)
case WebInputEvent::RawKeyDown: {
#else
case WebInputEvent::KeyDown: {
#endif
if (event.modifiers == WebInputEvent::ControlKey) {
switch (event.windowsKeyCode) {
case 'A':
GetFocusedFrame()->SelectAll();
return true;
case VKEY_INSERT:
case 'C':
GetFocusedFrame()->Copy();
return true;
// Match FF behavior in the sense that Ctrl+home/end are the only Ctrl
// key combinations which affect scrolling. Safari is buggy in the
// sense that it scrolls the page for all Ctrl+scrolling key
// combinations. For e.g. Ctrl+pgup/pgdn/up/down, etc.
case VKEY_HOME:
case VKEY_END:
break;
default:
return false;
}
}
if (!event.isSystemKey) {
return ScrollViewWithKeyboard(event.windowsKeyCode);
}
break;
}
default:
break;
}
return false;
}
bool WebViewImpl::ScrollViewWithKeyboard(int key_code) {
Frame* frame = GetFocusedWebCoreFrame();
if (!frame)
return false;
ScrollDirection scroll_direction;
ScrollGranularity scroll_granularity;
switch (key_code) {
case VKEY_LEFT:
scroll_direction = ScrollLeft;
scroll_granularity = ScrollByLine;
break;
case VKEY_RIGHT:
scroll_direction = ScrollRight;
scroll_granularity = ScrollByLine;
break;
case VKEY_UP:
scroll_direction = ScrollUp;
scroll_granularity = ScrollByLine;
break;
case VKEY_DOWN:
scroll_direction = ScrollDown;
scroll_granularity = ScrollByLine;
break;
case VKEY_HOME:
scroll_direction = ScrollUp;
scroll_granularity = ScrollByDocument;
break;
case VKEY_END:
scroll_direction = ScrollDown;
scroll_granularity = ScrollByDocument;
break;
case VKEY_PRIOR: // page up
scroll_direction = ScrollUp;
scroll_granularity = ScrollByPage;
break;
case VKEY_NEXT: // page down
scroll_direction = ScrollDown;
scroll_granularity = ScrollByPage;
break;
default:
return false;
}
bool scroll_handled =
frame->eventHandler()->scrollOverflow(scroll_direction,
scroll_granularity);
Frame* current_frame = frame;
while (!scroll_handled && current_frame) {
scroll_handled = current_frame->view()->scroll(scroll_direction,
scroll_granularity);
current_frame = current_frame->tree()->parent();
}
return scroll_handled;
}
Frame* WebViewImpl::GetFocusedWebCoreFrame() {
return page_.get() ? page_->focusController()->focusedOrMainFrame() : NULL;
}
// static
WebViewImpl* WebViewImpl::FromPage(WebCore::Page* page) {
return WebFrameImpl::FromFrame(page->mainFrame())->GetWebViewImpl();
}
// WebView --------------------------------------------------------------------
bool WebViewImpl::ShouldClose() {
// TODO(creis): This should really cause a recursive depth-first walk of all
// frames in the tree, calling each frame's onbeforeunload. At the moment,
// we're consistent with Safari 3.1, not IE/FF.
Frame* frame = page_->focusController()->focusedOrMainFrame();
if (!frame)
return true;
return frame->shouldClose();
}
void WebViewImpl::Close() {
// Do this first to prevent reentrant notifications from being sent to the
// initiator of the close.
delegate_ = NULL;
devtools_agent_.reset(NULL);
if (page_.get()) {
// Initiate shutdown for the entire frameset. This will cause a lot of
// notifications to be sent.
if (page_->mainFrame())
page_->mainFrame()->loader()->frameDetached();
page_.reset();
}
Release(); // Balances AddRef from WebView::Create
}
WebViewDelegate* WebViewImpl::GetDelegate() {
return delegate_;
}
void WebViewImpl::SetDelegate(WebViewDelegate* delegate) {
delegate_ = delegate;
}
WebFrame* WebViewImpl::GetMainFrame() {
return main_frame();
}
WebFrame* WebViewImpl::GetFocusedFrame() {
Frame* frame = GetFocusedWebCoreFrame();
return frame ? WebFrameImpl::FromFrame(frame) : NULL;
}
void WebViewImpl::SetFocusedFrame(WebFrame* frame) {
if (!frame) {
// Clears the focused frame if any.
Frame* frame = GetFocusedWebCoreFrame();
if (frame)
frame->selection()->setFocused(false);
return;
}
WebFrameImpl* frame_impl = static_cast<WebFrameImpl*>(frame);
WebCore::Frame* webcore_frame = frame_impl->frame();
webcore_frame->page()->focusController()->setFocusedFrame(webcore_frame);
}
WebFrame* WebViewImpl::GetFrameWithName(const std::wstring& name) {
String name_str = webkit_glue::StdWStringToString(name);
Frame* frame = page_->mainFrame()->tree()->find(name_str);
return frame ? WebFrameImpl::FromFrame(frame) : NULL;
}
WebFrame* WebViewImpl::GetPreviousFrameBefore(WebFrame* frame, bool wrap) {
WebFrameImpl* frame_impl = static_cast<WebFrameImpl*>(frame);
WebCore::Frame* previous =
frame_impl->frame()->tree()->traversePreviousWithWrap(wrap);
return previous ? WebFrameImpl::FromFrame(previous) : NULL;
}
WebFrame* WebViewImpl::GetNextFrameAfter(WebFrame* frame, bool wrap) {
WebFrameImpl* frame_impl = static_cast<WebFrameImpl*>(frame);
WebCore::Frame* next =
frame_impl->frame()->tree()->traverseNextWithWrap(wrap);
return next ? WebFrameImpl::FromFrame(next) : NULL;
}
void WebViewImpl::Resize(const WebSize& new_size) {
if (size_ == new_size)
return;
size_ = new_size;
if (main_frame()->frameview()) {
main_frame()->frameview()->resize(size_.width, size_.height);
main_frame()->frame()->eventHandler()->sendResizeEvent();
}
if (delegate_) {
WebRect damaged_rect(0, 0, size_.width, size_.height);
delegate_->DidInvalidateRect(this, damaged_rect);
}
}
void WebViewImpl::Layout() {
WebFrameImpl* webframe = main_frame();
if (webframe) {
// In order for our child HWNDs (NativeWindowWidgets) to update properly,
// they need to be told that we are updating the screen. The problem is
// that the native widgets need to recalculate their clip region and not
// overlap any of our non-native widgets. To force the resizing, call
// setFrameRect(). This will be a quick operation for most frames, but
// the NativeWindowWidgets will update a proper clipping region.
FrameView* view = webframe->frameview();
if (view)
view->setFrameRect(view->frameRect());
// setFrameRect may have the side-effect of causing existing page
// layout to be invalidated, so layout needs to be called last.
webframe->Layout();
}
}
void WebViewImpl::Paint(skia::PlatformCanvas* canvas, const WebRect& rect) {
WebFrameImpl* webframe = main_frame();
if (webframe)
webframe->Paint(canvas, rect);
}
// TODO(eseidel): g_current_input_event should be removed once
// ChromeClient:show() can get the current-event information from WebCore.
/* static */
const WebInputEvent* WebViewImpl::g_current_input_event = NULL;
bool WebViewImpl::HandleInputEvent(const WebInputEvent* input_event) {
// If we've started a drag and drop operation, ignore input events until
// we're done.
if (doing_drag_and_drop_)
return true;
if (ignore_input_events_)
return true;
// TODO(eseidel): Remove g_current_input_event.
// This only exists to allow ChromeClient::show() to know which mouse button
// triggered a window.open event.
// Safari must perform a similar hack, ours is in our WebKit glue layer
// theirs is in the application. This should go when WebCore can be fixed
// to pass more event information to ChromeClient::show()
g_current_input_event = input_event;
bool handled = true;
// TODO(jcampan): WebKit seems to always return false on mouse events
// processing methods. For now we'll assume it has processed them (as we are
// only interested in whether keyboard events are processed).
switch (input_event->type) {
case WebInputEvent::MouseMove:
MouseMove(*static_cast<const WebMouseEvent*>(input_event));
break;
case WebInputEvent::MouseLeave:
MouseLeave(*static_cast<const WebMouseEvent*>(input_event));
break;
case WebInputEvent::MouseWheel:
MouseWheel(*static_cast<const WebMouseWheelEvent*>(input_event));
break;
case WebInputEvent::MouseDown:
case WebInputEvent::MouseDoubleClick:
case WebInputEvent::MouseTripleClick:
MouseDown(*static_cast<const WebMouseEvent*>(input_event));
break;
case WebInputEvent::MouseUp:
MouseUp(*static_cast<const WebMouseEvent*>(input_event));
break;
case WebInputEvent::RawKeyDown:
case WebInputEvent::KeyDown:
case WebInputEvent::KeyUp:
handled = KeyEvent(*static_cast<const WebKeyboardEvent*>(input_event));
break;
case WebInputEvent::Char:
handled = CharEvent(*static_cast<const WebKeyboardEvent*>(input_event));
break;
default:
handled = false;
}
g_current_input_event = NULL;
return handled;
}
void WebViewImpl::MouseCaptureLost() {
}
// TODO(darin): these navigation methods should be killed
void WebViewImpl::StopLoading() {
main_frame()->StopLoading();
}
void WebViewImpl::SetBackForwardListSize(int size) {
page_->backForwardList()->setCapacity(size);
}
void WebViewImpl::ClearFocusedNode() {
// Get the last focused frame or the mainframe.
RefPtr<Frame> frame = last_focused_frame_;
if (!frame.get() && page_.get())
frame = page_->mainFrame();
if (!frame.get())
return;
RefPtr<Document> document = frame->document();
if (!document.get())
return;
RefPtr<Node> old_focused_node = document->focusedNode();
// Clear the focused node.
document->setFocusedNode(NULL);
if (!old_focused_node.get())
return;
// If a text field has focus, we need to make sure the selection controller
// knows to remove selection from it. Otherwise, the text field is still
// processing keyboard events even though focus has been moved to the page and
// keystrokes get eaten as a result.
if (old_focused_node->hasTagName(HTMLNames::textareaTag) ||
(old_focused_node->hasTagName(HTMLNames::inputTag) &&
static_cast<HTMLInputElement*>(old_focused_node.get())->isTextField())) {
// Clear the selection.
SelectionController* selection = frame->selection();
selection->clear();
}
}
void WebViewImpl::SetFocus(bool enable) {
if (enable) {
// Getting the focused frame will have the side-effect of setting the main
// frame as the focused frame if it is not already focused. Otherwise, if
// there is already a focused frame, then this does nothing.
GetFocusedFrame();
if (page_.get() && page_->mainFrame()) {
Frame* frame = page_->mainFrame();
if (!frame->selection()->isFocusedAndActive()) {
// No one has focus yet, try to restore focus.
RestoreFocus();
page_->focusController()->setActive(true);
}
Frame* focused_frame = page_->focusController()->focusedOrMainFrame();
frame->selection()->setFocused(frame == focused_frame);
}
ime_accept_events_ = true;
} else {
HideAutoCompletePopup();
// Clear out who last had focus. If someone has focus, the refs will be
// updated below.
ReleaseFocusReferences();
// Clear focus on the currently focused frame if any.
if (!page_.get())
return;
Frame* frame = page_->mainFrame();
if (!frame)
return;
RefPtr<Frame> focused = page_->focusController()->focusedFrame();
if (focused.get()) {
// Update the focus refs, this way we can give focus back appropriately.
// It's entirely possible to have a focused document, but not a focused
// node.
RefPtr<Document> document = focused->document();
last_focused_frame_ = focused;
if (document.get()) {
RefPtr<Node> focused_node = document->focusedNode();
if (focused_node.get()) {
// To workaround bug #792423, we do not blur the focused node. This
// should be reenabled when we merge a WebKit that has the fix for
// http://bugs.webkit.org/show_bug.cgi?id=16928.
// last_focused_node_ = focused_node;
// document->setFocusedNode(NULL);
}
}
page_->focusController()->setFocusedFrame(0);
// Finish an ongoing composition to delete the composition node.
Editor* editor = focused->editor();
if (editor && editor->hasComposition())
editor->confirmComposition();
ime_accept_events_ = false;
}
// Make sure the main frame doesn't think it has focus.
if (frame != focused.get())
frame->selection()->setFocused(false);
}
}
// TODO(jcampan): http://b/issue?id=1157486 this is needed to work-around
// issues caused by the fix for bug #792423 and should be removed when that
// bug is fixed.
void WebViewImpl::StoreFocusForFrame(WebFrame* frame) {
DCHECK(frame);
// We only want to store focus info if we are the focused frame and if we have
// not stored it already.
WebCore::Frame* webcore_frame = static_cast<WebFrameImpl*>(frame)->frame();
if (last_focused_frame_.get() != webcore_frame || last_focused_node_.get())
return;
// Clear out who last had focus. If someone has focus, the refs will be
// updated below.
ReleaseFocusReferences();
last_focused_frame_ = webcore_frame;
RefPtr<Document> document = last_focused_frame_->document();
if (document.get()) {
RefPtr<Node> focused_node = document->focusedNode();
if (focused_node.get()) {
last_focused_node_ = focused_node;
document->setFocusedNode(NULL);
}
}
}
bool WebViewImpl::ImeSetComposition(int string_type,
int cursor_position,
int target_start,
int target_end,
const std::wstring& ime_string) {
Frame* focused = GetFocusedWebCoreFrame();
if (!focused || !ime_accept_events_) {
return false;
}
Editor* editor = focused->editor();
if (!editor)
return false;
if (!editor->canEdit()) {
// The input focus has been moved to another WebWidget object.
// We should use this |editor| object only to complete the ongoing
// composition.
if (!editor->hasComposition())
return false;
}
// We should verify the parent node of this IME composition node are
// editable because JavaScript may delete a parent node of the composition
// node. In this case, WebKit crashes while deleting texts from the parent
// node, which doesn't exist any longer.
PassRefPtr<Range> range = editor->compositionRange();
if (range) {
const Node* node = range->startPosition().node();
if (!node || !node->isContentEditable())
return false;
}
if (string_type == -1) {
// A browser process sent an IPC message which does not contain a valid
// string, which means an ongoing composition has been canceled.
// If the ongoing composition has been canceled, replace the ongoing
// composition string with an empty string and complete it.
WebCore::String empty_string;
WTF::Vector<WebCore::CompositionUnderline> empty_underlines;
editor->setComposition(empty_string, empty_underlines, 0, 0);
} else {
// A browser process sent an IPC message which contains a string to be
// displayed in this Editor object.
// To display the given string, set the given string to the
// m_compositionNode member of this Editor object and display it.
if (target_start < 0) target_start = 0;
if (target_end < 0) target_end = static_cast<int>(ime_string.length());
WebCore::String composition_string(
webkit_glue::StdWStringToString(ime_string));
// Create custom underlines.
// To emphasize the selection, the selected region uses a solid black
// for its underline while other regions uses a pale gray for theirs.
WTF::Vector<WebCore::CompositionUnderline> underlines(3);
underlines[0].startOffset = 0;
underlines[0].endOffset = target_start;
underlines[0].thick = true;
underlines[0].color.setRGB(0xd3, 0xd3, 0xd3);
underlines[1].startOffset = target_start;
underlines[1].endOffset = target_end;
underlines[1].thick = true;
underlines[1].color.setRGB(0x00, 0x00, 0x00);
underlines[2].startOffset = target_end;
underlines[2].endOffset = static_cast<int>(ime_string.length());
underlines[2].thick = true;
underlines[2].color.setRGB(0xd3, 0xd3, 0xd3);
// When we use custom underlines, WebKit ("InlineTextBox.cpp" Line 282)
// prevents from writing a text in between 'selectionStart' and
// 'selectionEnd' somehow.
// Therefore, we use the 'cursor_position' for these arguments so that
// there are not any characters in the above region.
editor->setComposition(composition_string, underlines,
cursor_position, cursor_position);
// The given string is a result string, which means the ongoing
// composition has been completed. I have to call the
// Editor::confirmCompletion() and complete this composition.
if (string_type == 1) {
editor->confirmComposition();
}
}
return editor->hasComposition();
}
bool WebViewImpl::ImeUpdateStatus(bool* enable_ime,
WebRect* caret_rect) {
// Store whether the selected node needs IME and the caret rectangle.
// This process consists of the following four steps:
// 1. Retrieve the selection controller of the focused frame;
// 2. Retrieve the caret rectangle from the controller;
// 3. Convert the rectangle, which is relative to the parent view, to the
// one relative to the client window, and;
// 4. Store the converted rectangle.
const Frame* focused = GetFocusedWebCoreFrame();
if (!focused)
return false;
const Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return false;
SelectionController* controller = focused->selection();
if (!controller)
return false;
const Node* node = controller->start().node();
if (!node)
return false;
*enable_ime = node->shouldUseInputMethod() &&
!controller->isInPasswordField();
const FrameView* view = node->document()->view();
if (!view)
return false;
*caret_rect = webkit_glue::IntRectToWebRect(
view->contentsToWindow(controller->absoluteCaretBounds()));
return true;
}
void WebViewImpl::SetTextDirection(WebTextDirection direction) {
// The Editor::setBaseWritingDirection() function checks if we can change
// the text direction of the selected node and updates its DOM "dir"
// attribute and its CSS "direction" property.
// So, we just call the function as Safari does.
const Frame* focused = GetFocusedWebCoreFrame();
if (!focused)
return;
Editor* editor = focused->editor();
if (!editor || !editor->canEdit())
return;
switch (direction) {
case WEB_TEXT_DIRECTION_DEFAULT:
editor->setBaseWritingDirection(WebCore::NaturalWritingDirection);
break;
case WEB_TEXT_DIRECTION_LTR:
editor->setBaseWritingDirection(WebCore::LeftToRightWritingDirection);
break;
case WEB_TEXT_DIRECTION_RTL:
editor->setBaseWritingDirection(WebCore::RightToLeftWritingDirection);
break;
default:
NOTIMPLEMENTED();
break;
}
}
void WebViewImpl::RestoreFocus() {
if (last_focused_frame_.get()) {
if (last_focused_frame_->page()) {
// last_focused_frame_ can be detached from the frame tree, thus,
// its page can be null.
last_focused_frame_->page()->focusController()->setFocusedFrame(
last_focused_frame_.get());
}
if (last_focused_node_.get()) {
// last_focused_node_ may be null, make sure it's valid before trying to
// focus it.
static_cast<Element*>(last_focused_node_.get())->focus();
}
// And clear out the refs.
ReleaseFocusReferences();
}
}
void WebViewImpl::SetInitialFocus(bool reverse) {
if (page_.get()) {
// So RestoreFocus does not focus anything when it is called.
ReleaseFocusReferences();
// Since we don't have a keyboard event, we'll create one.
WebKeyboardEvent keyboard_event;
keyboard_event.type = WebInputEvent::RawKeyDown;
if (reverse)
keyboard_event.modifiers = WebInputEvent::ShiftKey;
// VK_TAB which is only defined on Windows.
keyboard_event.windowsKeyCode = 0x09;
MakePlatformKeyboardEvent platform_event(keyboard_event);
RefPtr<KeyboardEvent> webkit_event =
KeyboardEvent::create(platform_event, NULL);
page()->focusController()->setInitialFocus(
reverse ? WebCore::FocusDirectionBackward :
WebCore::FocusDirectionForward,
webkit_event.get());
}
}
// Releases references used to restore focus.
void WebViewImpl::ReleaseFocusReferences() {
if (last_focused_frame_.get()) {
last_focused_frame_.release();
last_focused_node_.release();
}
}
bool WebViewImpl::DownloadImage(int id, const GURL& image_url, int image_size) {
if (!page_.get())
return false;
image_fetchers_.insert(
new ImageResourceFetcher(this, id, image_url, image_size));
return true;
}
void WebViewImpl::SetPreferences(const WebPreferences& preferences) {
if (!page_.get())
return;
// Keep a local copy of the preferences struct for GetPreferences.
webprefs_ = preferences;
Settings* settings = page_->settings();
settings->setStandardFontFamily(webkit_glue::StdWStringToString(
preferences.standard_font_family));
settings->setFixedFontFamily(webkit_glue::StdWStringToString(
preferences.fixed_font_family));
settings->setSerifFontFamily(webkit_glue::StdWStringToString(
preferences.serif_font_family));
settings->setSansSerifFontFamily(webkit_glue::StdWStringToString(
preferences.sans_serif_font_family));
settings->setCursiveFontFamily(webkit_glue::StdWStringToString(
preferences.cursive_font_family));
settings->setFantasyFontFamily(webkit_glue::StdWStringToString(
preferences.fantasy_font_family));
settings->setDefaultFontSize(preferences.default_font_size);
settings->setDefaultFixedFontSize(preferences.default_fixed_font_size);
settings->setMinimumFontSize(preferences.minimum_font_size);
settings->setMinimumLogicalFontSize(preferences.minimum_logical_font_size);
settings->setDefaultTextEncodingName(webkit_glue::StdWStringToString(
preferences.default_encoding));
settings->setJavaScriptEnabled(preferences.javascript_enabled);
settings->setWebSecurityEnabled(preferences.web_security_enabled);
settings->setJavaScriptCanOpenWindowsAutomatically(
preferences.javascript_can_open_windows_automatically);
settings->setLoadsImagesAutomatically(
preferences.loads_images_automatically);
settings->setPluginsEnabled(preferences.plugins_enabled);
settings->setDOMPasteAllowed(preferences.dom_paste_enabled);
settings->setDeveloperExtrasEnabled(preferences.developer_extras_enabled);
settings->setShrinksStandaloneImagesToFit(
preferences.shrinks_standalone_images_to_fit);
settings->setUsesEncodingDetector(preferences.uses_universal_detector);
settings->setTextAreasAreResizable(preferences.text_areas_are_resizable);
settings->setAllowScriptsToCloseWindows(
preferences.allow_scripts_to_close_windows);
if (preferences.user_style_sheet_enabled) {
settings->setUserStyleSheetLocation(webkit_glue::GURLToKURL(
preferences.user_style_sheet_location));
} else {
settings->setUserStyleSheetLocation(KURL());
}
settings->setUsesPageCache(preferences.uses_page_cache);
// This setting affects the behavior of links in an editable region:
// clicking the link should select it rather than navigate to it.
// Safari uses the same default. It is unlikley an embedder would want to
// change this, since it would break existing rich text editors.
settings->setEditableLinkBehavior(WebCore::EditableLinkNeverLive);
settings->setFontRenderingMode(NormalRenderingMode);
settings->setJavaEnabled(preferences.java_enabled);
// Turn this on to cause WebCore to paint the resize corner for us.
settings->setShouldPaintCustomScrollbars(true);
// Mitigate attacks from local HTML files by not granting file:// URLs
// universal access.
settings->setAllowUniversalAccessFromFileURLs(false);
// We prevent WebKit from checking if it needs to add a "text direction"
// submenu to a context menu. it is not only because we don't need the result
// but also because it cause a possible crash in Editor::hasBidiSelection().
settings->setTextDirectionSubmenuInclusionBehavior(
TextDirectionSubmenuNeverIncluded);
#if defined(OS_WIN)
// RenderTheme is a singleton that needs to know the default font size to
// draw some form controls. We let it know each time the size changes.
WebCore::RenderThemeChromiumWin::setDefaultFontSize(preferences.default_font_size);
#endif
}
const WebPreferences& WebViewImpl::GetPreferences() {
return webprefs_;
}
// Set the encoding of the current main frame to the one selected by
// a user in the encoding menu.
void WebViewImpl::SetPageEncoding(const std::wstring& encoding_name) {
if (!page_.get())
return;
if (!encoding_name.empty()) {
// only change override encoding, don't change default encoding
// TODO(brettw) use std::string for encoding names.
String new_encoding_name(webkit_glue::StdWStringToString(encoding_name));
page_->mainFrame()->loader()->reloadWithOverrideEncoding(new_encoding_name);
}
}
// Return the canonical encoding name of current main webframe in webview.
std::wstring WebViewImpl::GetMainFrameEncodingName() {
if (!page_.get())
return std::wstring();
String encoding_name = page_->mainFrame()->loader()->encoding();
return webkit_glue::StringToStdWString(encoding_name);
}
void WebViewImpl::ZoomIn(bool text_only) {
Frame* frame = main_frame()->frame();
double multiplier = std::min(std::pow(kTextSizeMultiplierRatio,
zoom_level_ + 1),
kMaxTextSizeMultiplier);
float zoom_factor = static_cast<float>(multiplier);
if (zoom_factor != frame->zoomFactor()) {
++zoom_level_;
frame->setZoomFactor(zoom_factor, text_only);
}
}
void WebViewImpl::ZoomOut(bool text_only) {
Frame* frame = main_frame()->frame();
double multiplier = std::max(std::pow(kTextSizeMultiplierRatio,
zoom_level_ - 1),
kMinTextSizeMultiplier);
float zoom_factor = static_cast<float>(multiplier);
if (zoom_factor != frame->zoomFactor()) {
--zoom_level_;
frame->setZoomFactor(zoom_factor, text_only);
}
}
void WebViewImpl::ResetZoom() {
// We don't change the zoom mode (text only vs. full page) here. We just want
// to reset whatever is already set.
zoom_level_ = 0;
main_frame()->frame()->setZoomFactor(
1.0f,
main_frame()->frame()->isZoomFactorTextOnly());
}
void WebViewImpl::CopyImageAt(int x, int y) {
if (!page_.get())
return;
HitTestResult result = HitTestResultForWindowPos(IntPoint(x, y));
if (result.absoluteImageURL().isEmpty()) {
// There isn't actually an image at these coordinates. Might be because
// the window scrolled while the context menu was open or because the page
// changed itself between when we thought there was an image here and when
// we actually tried to retreive the image.
//
// TODO: implement a cache of the most recent HitTestResult to avoid having
// to do two hit tests.
return;
}
page_->mainFrame()->editor()->copyImage(result);
}
void WebViewImpl::InspectElement(int x, int y) {
if (!page_.get())
return;
if (x == -1 || y == -1) {
page_->inspectorController()->inspect(NULL);
} else {
HitTestResult result = HitTestResultForWindowPos(IntPoint(x, y));
if (!result.innerNonSharedNode())
return;
page_->inspectorController()->inspect(result.innerNonSharedNode());
}
}
void WebViewImpl::ShowJavaScriptConsole() {
page_->inspectorController()->showPanel(InspectorController::ConsolePanel);
}
void WebViewImpl::DragSourceEndedAt(
const WebPoint& client_point,
const WebPoint& screen_point) {
PlatformMouseEvent pme(webkit_glue::WebPointToIntPoint(client_point),
webkit_glue::WebPointToIntPoint(screen_point),
NoButton, MouseEventMoved, 0, false, false, false,
false, 0);
page_->mainFrame()->eventHandler()->dragSourceEndedAt(pme, DragOperationCopy);
}
void WebViewImpl::DragSourceMovedTo(
const WebPoint& client_point,
const WebPoint& screen_point) {
PlatformMouseEvent pme(webkit_glue::WebPointToIntPoint(client_point),
webkit_glue::WebPointToIntPoint(screen_point),
LeftButton, MouseEventMoved, 0, false, false, false,
false, 0);
page_->mainFrame()->eventHandler()->dragSourceMovedTo(pme);
}
void WebViewImpl::DragSourceSystemDragEnded() {
page_->dragController()->dragEnded();
DCHECK(doing_drag_and_drop_);
doing_drag_and_drop_ = false;
}
bool WebViewImpl::DragTargetDragEnter(
const WebDragData& web_drag_data,
int identity,
const WebPoint& client_point,
const WebPoint& screen_point) {
DCHECK(!current_drag_data_.get());
current_drag_data_ =
webkit_glue::WebDragDataToChromiumDataObject(web_drag_data);
drag_identity_ = identity;
DragData drag_data(
current_drag_data_.get(),
webkit_glue::WebPointToIntPoint(client_point),
webkit_glue::WebPointToIntPoint(screen_point),
kDropTargetOperation);
drop_effect_ = DROP_EFFECT_DEFAULT;
drag_target_dispatch_ = true;
DragOperation effect = page_->dragController()->dragEntered(&drag_data);
drag_target_dispatch_ = false;
if (drop_effect_ != DROP_EFFECT_DEFAULT)
return drop_accept_ = (drop_effect_ != DROP_EFFECT_NONE);
return drop_accept_ = (effect != DragOperationNone);
}
bool WebViewImpl::DragTargetDragOver(
const WebPoint& client_point,
const WebPoint& screen_point) {
DCHECK(current_drag_data_.get());
DragData drag_data(
current_drag_data_.get(),
webkit_glue::WebPointToIntPoint(client_point),
webkit_glue::WebPointToIntPoint(screen_point),
kDropTargetOperation);
drop_effect_ = DROP_EFFECT_DEFAULT;
drag_target_dispatch_ = true;
DragOperation effect = page_->dragController()->dragUpdated(&drag_data);
drag_target_dispatch_ = false;
if (drop_effect_ != DROP_EFFECT_DEFAULT)
return drop_accept_ = (drop_effect_ != DROP_EFFECT_NONE);
return drop_accept_ = (effect != DragOperationNone);
}
void WebViewImpl::DragTargetDragLeave() {
DCHECK(current_drag_data_.get());
DragData drag_data(
current_drag_data_.get(),
IntPoint(),
IntPoint(),
kDropTargetOperation);
drag_target_dispatch_ = true;
page_->dragController()->dragExited(&drag_data);
drag_target_dispatch_ = false;
current_drag_data_ = NULL;
drop_effect_ = DROP_EFFECT_DEFAULT;
drop_accept_ = false;
drag_identity_ = 0;
}
void WebViewImpl::DragTargetDrop(
const WebPoint& client_point,
const WebPoint& screen_point) {
DCHECK(current_drag_data_.get());
// If this webview transitions from the "drop accepting" state to the "not
// accepting" state, then our IPC message reply indicating that may be in-
// flight, or else delayed by javascript processing in this webview. If a
// drop happens before our IPC reply has reached the browser process, then
// the browser forwards the drop to this webview. So only allow a drop to
// proceed if our webview drop_accept_ state is true.
if (!drop_accept_) { // IPC RACE CONDITION: do not allow this drop.
DragTargetDragLeave();
return;
}
DragData drag_data(
current_drag_data_.get(),
webkit_glue::WebPointToIntPoint(client_point),
webkit_glue::WebPointToIntPoint(screen_point),
kDropTargetOperation);
drag_target_dispatch_ = true;
page_->dragController()->performDrag(&drag_data);
drag_target_dispatch_ = false;
current_drag_data_ = NULL;
drop_effect_ = DROP_EFFECT_DEFAULT;
drop_accept_ = false;
drag_identity_ = 0;
}
int32 WebViewImpl::GetDragIdentity() {
if (drag_target_dispatch_)
return drag_identity_;
return 0;
}
bool WebViewImpl::SetDropEffect(bool accept) {
if (drag_target_dispatch_) {
drop_effect_ = accept ? DROP_EFFECT_COPY : DROP_EFFECT_NONE;
return true;
} else {
return false;
}
}
SearchableFormData* WebViewImpl::CreateSearchableFormDataForFocusedNode() {
if (!page_.get())
return NULL;
if (RefPtr<Frame> focused = page_->focusController()->focusedFrame()) {
RefPtr<Document> document = focused->document();
if (document.get()) {
RefPtr<Node> focused_node = document->focusedNode();
if (focused_node.get() &&
focused_node->nodeType() == Node::ELEMENT_NODE) {
return SearchableFormData::Create(
static_cast<Element*>(focused_node.get()));
}
}
}
return NULL;
}
void WebViewImpl::AutofillSuggestionsForNode(
int64 node_id,
const std::vector<std::wstring>& suggestions,
int default_suggestion_index) {
if (!page_.get() || suggestions.empty()) {
HideAutoCompletePopup();
return;
}
DCHECK(default_suggestion_index < static_cast<int>(suggestions.size()));
if (RefPtr<Frame> focused = page_->focusController()->focusedFrame()) {
RefPtr<Document> document = focused->document();
if (!document.get()) {
HideAutoCompletePopup();
return;
}
RefPtr<Node> focused_node = document->focusedNode();
// If the node for which we queried the autofill suggestions is not the
// focused node, then we have nothing to do.
// TODO(jcampan): also check the carret is at the end and that the text has
// not changed.
if (!focused_node.get() ||
reinterpret_cast<int64>(focused_node.get()) != node_id) {
HideAutoCompletePopup();
return;
}
if (!focused_node->hasTagName(WebCore::HTMLNames::inputTag)) {
NOTREACHED();
return;
}
WebCore::HTMLInputElement* input_elem =
static_cast<WebCore::HTMLInputElement*>(focused_node.get());
// The first time the autocomplete is shown we'll create the client and the
// popup.
if (!autocomplete_popup_client_.get())
autocomplete_popup_client_.reset(new AutocompletePopupMenuClient(this));
autocomplete_popup_client_->Init(input_elem,
suggestions,
default_suggestion_index);
if (!autocomplete_popup_.get()) {
autocomplete_popup_ =
WebCore::PopupContainer::create(autocomplete_popup_client_.get(),
kAutocompletePopupSettings);
}
if (autocomplete_popup_showing_) {
autocomplete_popup_client_->SetSuggestions(suggestions);
RefreshAutofillPopup();
} else {
autocomplete_popup_->show(focused_node->getRect(),
focused_node->ownerDocument()->view(), 0);
autocomplete_popup_showing_ = true;
}
}
}
WebDevToolsAgent* WebViewImpl::GetWebDevToolsAgent() {
return GetWebDevToolsAgentImpl();
}
WebDevToolsAgentImpl* WebViewImpl::GetWebDevToolsAgentImpl() {
return devtools_agent_.get();
}
void WebViewImpl::SetIsTransparent(bool is_transparent) {
// Set any existing frames to be transparent.
WebCore::Frame* frame = page_->mainFrame();
while (frame) {
frame->view()->setTransparent(is_transparent);
frame = frame->tree()->traverseNext();
}
// Future frames check this to know whether to be transparent.
is_transparent_ = is_transparent;
}
bool WebViewImpl::GetIsTransparent() const {
return is_transparent_;
}
void WebViewImpl::DidCommitLoad(bool* is_new_navigation) {
if (is_new_navigation)
*is_new_navigation = observed_new_navigation_;
#ifndef NDEBUG
DCHECK(!observed_new_navigation_ ||
page_->mainFrame()->loader()->documentLoader() == new_navigation_loader_);
new_navigation_loader_ = NULL;
#endif
observed_new_navigation_ = false;
}
void WebViewImpl::StartDragging(const WebDragData& drag_data) {
if (delegate_) {
DCHECK(!doing_drag_and_drop_);
doing_drag_and_drop_ = true;
delegate_->StartDragging(this, drag_data);
}
}
void WebViewImpl::ImageResourceDownloadDone(ImageResourceFetcher* fetcher,
bool errored,
const SkBitmap& image) {
if (delegate_) {
delegate_->DidDownloadImage(fetcher->id(), fetcher->image_url(), errored,
image);
}
DeleteImageResourceFetcher(fetcher);
}
void WebViewImpl::SetCurrentHistoryItem(WebCore::HistoryItem* item) {
back_forward_list_client_impl_.SetCurrentHistoryItem(item);
}
WebCore::HistoryItem* WebViewImpl::GetPreviousHistoryItem() {
return back_forward_list_client_impl_.GetPreviousHistoryItem();
}
void WebViewImpl::ObserveNewNavigation() {
observed_new_navigation_ = true;
#ifndef NDEBUG
new_navigation_loader_ = page_->mainFrame()->loader()->documentLoader();
#endif
}
void WebViewImpl::DeleteImageResourceFetcher(ImageResourceFetcher* fetcher) {
DCHECK(image_fetchers_.find(fetcher) != image_fetchers_.end());
image_fetchers_.erase(fetcher);
// We're in the callback from the ImageResourceFetcher, best to delay
// deletion.
MessageLoop::current()->DeleteSoon(FROM_HERE, fetcher);
}
void WebViewImpl::HideAutoCompletePopup() {
if (autocomplete_popup_showing_) {
autocomplete_popup_->hidePopup();
autocomplete_popup_showing_ = false;
}
}
void WebViewImpl::SetIgnoreInputEvents(bool new_value) {
DCHECK(ignore_input_events_ != new_value);
ignore_input_events_ = new_value;
}
WebCore::Node* WebViewImpl::GetNodeForWindowPos(int x, int y) {
HitTestResult result = HitTestResultForWindowPos(IntPoint(x, y));
return result.innerNonSharedNode();
}
void WebViewImpl::HideAutofillPopup() {
HideAutoCompletePopup();
}
void WebViewImpl::RefreshAutofillPopup() {
DCHECK(autocomplete_popup_showing_);
// Hide the popup if it has become empty.
if (autocomplete_popup_client_->listSize() == 0) {
HideAutoCompletePopup();
return;
}
IntRect old_bounds = autocomplete_popup_->boundsRect();
autocomplete_popup_->refresh();
IntRect new_bounds = autocomplete_popup_->boundsRect();
// Let's resize the backing window if necessary.
if (old_bounds != new_bounds) {
WebWidgetImpl* web_widget =
static_cast<WebWidgetImpl*>(autocomplete_popup_->client());
web_widget->delegate()->SetWindowRect(
web_widget, webkit_glue::IntRectToWebRect(new_bounds));
}
}
Node* WebViewImpl::GetFocusedNode() {
Frame* frame = page_->focusController()->focusedFrame();
if (!frame)
return NULL;
Document* document = frame->document();
if (!document)
return NULL;
return document->focusedNode();
}
HitTestResult WebViewImpl::HitTestResultForWindowPos(const IntPoint& pos) {
IntPoint doc_point(
page_->mainFrame()->view()->windowToContents(pos));
return page_->mainFrame()->eventHandler()->
hitTestResultAtPoint(doc_point, false);
}