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authorinitial.commit <initial.commit@0039d316-1c4b-4281-b951-d872f2087c98>2008-07-27 00:20:51 +0000
committerinitial.commit <initial.commit@0039d316-1c4b-4281-b951-d872f2087c98>2008-07-27 00:20:51 +0000
commitf5b16fed647e941aa66933178da85db2860d639b (patch)
treef00e9856c04aad3b558a140955e7674add33f051 /webkit/glue/webview_impl.cc
parent920c091ac3ee15079194c82ae8a7a18215f3f23c (diff)
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Add webkit to the repository.
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'webkit/glue/webview_impl.cc')
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diff --git a/webkit/glue/webview_impl.cc b/webkit/glue/webview_impl.cc
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+/*
+* 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"
+
+#pragma warning(push, 0)
+#include "Cursor.h"
+#include "Document.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 "HitTestResult.h"
+#include "Image.h"
+#include "InspectorController.h"
+#include "IntRect.h"
+#include "KeyboardEvent.h"
+#include "MIMETypeRegistry.h"
+#include "Page.h"
+#include "Pasteboard.h"
+#include "PlatformKeyboardEvent.h"
+#include "PlatformMouseEvent.h"
+#include "PlatformWheelEvent.h"
+#include "PluginInfoStore.h"
+#include "RenderThemeWin.h"
+#include "ResourceHandle.h"
+#include "SelectionController.h"
+#include "Settings.h"
+#include "TypingCommand.h"
+#include "event_conversion.h"
+#pragma warning(pop)
+#undef LOG
+
+#include "base/gfx/rect.h"
+#include "base/logging.h"
+#include "base/message_loop.h"
+#include "base/string_util.h"
+#include "webkit/glue/chrome_client_impl.h"
+#include "webkit/glue/context_menu_client_impl.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/webdropdata.h"
+#include "webkit/glue/webhistoryitem_impl.h"
+#include "webkit/glue/webinputevent.h"
+#include "webkit/glue/webkit_glue.h"
+#include "webkit/glue/webpreferences.h"
+#include "webkit/glue/webview_delegate.h"
+#include "webkit/glue/webview_impl.h"
+#include "webkit/glue/webwidget_impl.h"
+#include "webkit/port/platform/graphics/PlatformContextSkia.h"
+
+// Get rid of WTF's pow define so we can use std::pow.
+#undef pow
+
+using namespace WebCore;
+
+// 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);
+
+// WebView ----------------------------------------------------------------
+
+/*static*/
+WebView* WebView::Create(WebViewDelegate* delegate,
+ const WebPreferences& prefs) {
+ WebViewImpl* instance = new WebViewImpl();
+ instance->AddRef();
+ instance->SetPreferences(prefs);
+ instance->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;
+ // Restrict the access to the local file system
+ // (see WebView.mm WebView::_commonInitializationWithFrameName).
+ FrameLoader::setRestrictAccessToLocal(true);
+ return instance;
+}
+
+WebViewImpl::WebViewImpl()
+ : delegate_(NULL),
+ pending_history_item_(NULL),
+#ifndef NDEBUG
+ new_navigation_loader_(NULL),
+#endif
+ observed_new_navigation_(false),
+ text_zoom_level_(0),
+ context_menu_allowed_(false),
+ doing_drag_and_drop_(false),
+ suppress_next_keypress_event_(false),
+ window_open_disposition_(IGNORE_ACTION),
+ ime_accept_events_(true) {
+ // set to impossible point so we always get the first mouse pos
+ last_mouse_position_.SetPoint(-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(this);
+
+ // 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");
+
+ // This is created with a refcount of 1, and we assign it to a RefPtr,
+ // giving a refcount of 2. The ref is done on behalf of
+ // FrameWin/FrameLoaderWin which references the WebFrame via the
+ // FrameWinClient/FrameLoaderClient interfaces. See the comment at the
+ // top of webframe_impl.cc
+ main_frame_ = new WebFrameImpl();
+}
+
+WebViewImpl::~WebViewImpl() {
+ DCHECK(main_frame_ == NULL);
+ 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_->frameview())
+ return;
+
+ last_mouse_position_.SetPoint(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_->frameview()->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_->frameview()->frame()->eventHandler()->handleMouseMoveEvent(
+ MakePlatformMouseEvent(main_frame_->frameview(), event));
+}
+
+void WebViewImpl::MouseDown(const WebMouseEvent& event) {
+ if (!main_frame_->frameview())
+ return;
+
+ last_mouse_down_point_ = gfx::Point(event.x, event.y);
+ main_frame_->frame()->eventHandler()->handleMousePressEvent(
+ MakePlatformMouseEvent(main_frame_->frameview(), event));
+}
+
+void WebViewImpl::MouseUp(const WebMouseEvent& event) {
+ if (event.button == WebMouseEvent::BUTTON_RIGHT) {
+ page_->contextMenuController()->clearContextMenu();
+
+ MakePlatformMouseEvent pme(main_frame_->frameview(), event);
+
+ // Find the right target frame. See issue 1186900.
+ IntPoint doc_point(
+ main_frame_->frame()->view()->windowToContents(pme.pos()));
+ HitTestResult result =
+ main_frame_->frame()->eventHandler()->hitTestResultAtPoint(doc_point,
+ false);
+ Frame* target_frame;
+ if (result.innerNonSharedNode())
+ target_frame = result.innerNonSharedNode()->document()->frame();
+ else
+ target_frame = page_->focusController()->focusedOrMainFrame();
+
+ target_frame->view()->setCursor(pointerCursor());
+
+ context_menu_allowed_ = true;
+ target_frame->eventHandler()->sendContextMenuEvent(pme);
+ context_menu_allowed_ = false;
+ // Actually showing the context menu is handled by the ContextMenuClient
+ // implementation...
+ }
+
+ if (!main_frame_->frameview())
+ return;
+
+ MouseCaptureLost();
+ main_frame_->frameview()->frame()->eventHandler()->handleMouseReleaseEvent(
+ MakePlatformMouseEvent(main_frame_->frameview(), event));
+}
+
+void WebViewImpl::MouseWheel(const WebMouseWheelEvent& event) {
+ main_frame_->frame()->eventHandler()->handleWheelEvent(
+ MakePlatformWheelEvent(main_frame_->frameview(), event));
+}
+
+bool WebViewImpl::KeyEvent(const WebKeyboardEvent& event) {
+ DCHECK((event.type == WebInputEvent::KEY_DOWN) ||
+ (event.type == WebInputEvent::KEY_UP));
+
+ // 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;
+
+ Frame* frame = GetFocusedWebCoreFrame();
+ if (!frame)
+ return false;
+
+ EventHandler* handler = frame->eventHandler();
+ if (!handler)
+ return KeyEventDefault(event);
+
+ if (((event.modifiers == 0) && (event.key_code == VK_APPS)) ||
+ ((event.modifiers == WebInputEvent::SHIFT_KEY) &&
+ (event.key_code == VK_F10))) {
+ SendContextMenuEvent(event);
+ return true;
+ }
+
+ MakePlatformKeyboardEvent evt(event);
+
+ if (WebInputEvent::KEY_DOWN == event.type) {
+ MakePlatformKeyboardEvent evt_rawkeydown = evt;
+ evt_rawkeydown.SetKeyType(WebCore::PlatformKeyboardEvent::RawKeyDown);
+ if (handler->keyEvent(evt_rawkeydown) && !evt_rawkeydown.isSystemKey()) {
+ suppress_next_keypress_event_ = true;
+ return true;
+ }
+ } else {
+ if (handler->keyEvent(evt)) {
+ return true;
+ }
+ }
+
+ return KeyEventDefault(event);
+}
+
+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 WM_SYSCHAR messages to the
+ // eventHandler::keyEvent. We mimic this behavior.
+ 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.
+*/
+bool WebViewImpl::SendContextMenuEvent(const WebKeyboardEvent& event) {
+ static const int kContextMenuMargin = 1;
+ FrameView* view = page()->mainFrame()->view();
+ if (!view)
+ return false;
+
+ POINT 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 =
+ page()->mainFrame()->selectionController()->selection().start();
+ Position end = page()->mainFrame()->selectionController()->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;
+ // Calculate the rect of the first line of the selection (cribbed from
+ // -[WebCoreFrameBridge firstRectForDOMRange:]).
+ int extra_width_to_EOL = 0;
+ IntRect start_caret_rect = renderer->caretRect(start.offset(), DOWNSTREAM,
+ &extra_width_to_EOL);
+ IntRect end_caret_rect = renderer->caretRect(end.offset(), UPSTREAM);
+ IntRect first_rect;
+ if (start_caret_rect.y() == end_caret_rect.y()) {
+ first_rect = IntRect(std::min(start_caret_rect.x(), end_caret_rect.x()),
+ start_caret_rect.y(),
+ abs(end_caret_rect.x() - start_caret_rect.x()),
+ max(start_caret_rect.height(),
+ end_caret_rect.height()));
+ } else {
+ first_rect = IntRect(start_caret_rect.x(), start_caret_rect.y(),
+ start_caret_rect.width() + extra_width_to_EOL,
+ start_caret_rect.height());
+ }
+ location = IntPoint(right_aligned ? first_rect.right() :
+ first_rect.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::BUTTON_RIGHT;
+ mouse_event.x = coords.x;
+ mouse_event.y = coords.y;
+ mouse_event.type = WebInputEvent::MOUSE_UP;
+
+ MakePlatformMouseEvent platform_event(view, mouse_event);
+
+ context_menu_allowed_ = true;
+ bool handled =
+ focused_frame->eventHandler()->sendContextMenuEvent(platform_event);
+ context_menu_allowed_ = false;
+ return handled;
+}
+
+bool WebViewImpl::KeyEventDefault(const WebKeyboardEvent& event) {
+ Frame* frame = GetFocusedWebCoreFrame();
+ if (!frame)
+ return false;
+
+ switch (event.type) {
+ case WebInputEvent::CHAR: {
+ if (event.key_code == VK_SPACE) {
+ int key_code = ((event.modifiers & WebInputEvent::SHIFT_KEY) ?
+ VK_PRIOR : VK_NEXT);
+ return ScrollViewWithKeyboard(key_code);
+ }
+ break;
+ }
+
+ case WebInputEvent::KEY_DOWN: {
+ if (event.modifiers == WebInputEvent::CTRL_KEY) {
+ switch (event.key_code) {
+ case 'A':
+ GetFocusedFrame()->SelectAll();
+ return true;
+ case VK_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 VK_HOME:
+ case VK_END:
+ break;
+ default:
+ return false;
+ }
+ }
+ if (!event.system_key) {
+ return ScrollViewWithKeyboard(event.key_code);
+ }
+ 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 VK_LEFT:
+ scroll_direction = ScrollLeft;
+ scroll_granularity = ScrollByLine;
+ break;
+ case VK_RIGHT:
+ scroll_direction = ScrollRight;
+ scroll_granularity = ScrollByLine;
+ break;
+ case VK_UP:
+ scroll_direction = ScrollUp;
+ scroll_granularity = ScrollByLine;
+ break;
+ case VK_DOWN:
+ scroll_direction = ScrollDown;
+ scroll_granularity = ScrollByLine;
+ break;
+ case VK_HOME:
+ scroll_direction = ScrollUp;
+ scroll_granularity = ScrollByDocument;
+ break;
+ case VK_END:
+ scroll_direction = ScrollDown;
+ scroll_granularity = ScrollByDocument;
+ break;
+ case VK_PRIOR: // page up
+ scroll_direction = ScrollUp;
+ scroll_granularity = ScrollByPage;
+ break;
+ case VK_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() {
+ if (!main_frame_ || !main_frame_->frame())
+ return NULL;
+
+ return
+ main_frame_->frame()->page()->focusController()->focusedOrMainFrame();
+}
+
+// static
+WebViewImpl* WebViewImpl::FromPage(WebCore::Page* page) {
+ return WebFrameImpl::FromFrame(page->mainFrame())->webview_impl();
+}
+
+// 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;
+
+ // Initiate shutdown for the entire frameset.
+ if (main_frame_) {
+ // This will cause a lot of notifications to be sent.
+ main_frame_->frame()->loader()->frameDetached();
+ main_frame_ = NULL;
+ }
+
+ page_.reset();
+}
+
+WebViewDelegate* WebViewImpl::GetDelegate() {
+ return delegate_;
+}
+
+WebFrame* WebViewImpl::GetMainFrame() {
+ return main_frame_.get();
+}
+
+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->selectionController()->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 = main_frame_->frame()->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 gfx::Size& 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()->sendResizeEvent();
+ }
+
+ if (delegate_) {
+ gfx::Rect damaged_rect(0, 0, size_.width(), size_.height());
+ delegate_->DidInvalidateRect(this, damaged_rect);
+ }
+}
+
+void WebViewImpl::Layout() {
+ if (main_frame_) {
+ // 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
+ // setFrameGeometry(). This will be a quick operation for most frames, but
+ // the NativeWindowWidgets will update a proper clipping region.
+ FrameView* frameview = main_frame_->frameview();
+ if (frameview)
+ frameview->setFrameGeometry(frameview->frameGeometry());
+
+ // setFrameGeometry may have the side-effect of causing existing page
+ // layout to be invalidated, so layout needs to be called last.
+
+ main_frame_->Layout();
+ }
+}
+
+void WebViewImpl::Paint(gfx::PlatformCanvas* canvas, const gfx::Rect& rect) {
+ if (main_frame_)
+ main_frame_->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;
+
+ // 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::MOUSE_MOVE:
+ MouseMove(*static_cast<const WebMouseEvent*>(input_event));
+ break;
+
+ case WebInputEvent::MOUSE_LEAVE:
+ MouseLeave(*static_cast<const WebMouseEvent*>(input_event));
+ break;
+
+ case WebInputEvent::MOUSE_WHEEL:
+ MouseWheel(*static_cast<const WebMouseWheelEvent*>(input_event));
+ break;
+
+ case WebInputEvent::MOUSE_DOWN:
+ case WebInputEvent::MOUSE_DOUBLE_CLICK:
+ MouseDown(*static_cast<const WebMouseEvent*>(input_event));
+ break;
+
+ case WebInputEvent::MOUSE_UP:
+ MouseUp(*static_cast<const WebMouseEvent*>(input_event));
+ break;
+
+ case WebInputEvent::KEY_DOWN:
+ case WebInputEvent::KEY_UP:
+ 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::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 (main_frame_ && main_frame_->frame()) {
+ Frame* frame = main_frame_->frame();
+ if (!frame->selectionController()->isFocusedAndActive()) {
+ // No one has focus yet, try to restore focus.
+ RestoreFocus();
+ frame->page()->focusController()->setActive(true);
+ }
+ Frame* focused_frame =
+ frame->page()->focusController()->focusedOrMainFrame();
+ frame->selectionController()->setFocused(frame == focused_frame);
+ }
+ ime_accept_events_ = true;
+ } else {
+ // 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 (!main_frame_)
+ return;
+
+ Frame* frame = main_frame_->frame();
+ if (!frame)
+ return;
+
+ RefPtr<Frame> focused = frame->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);
+ }
+ }
+ frame->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->selectionController()->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);
+ }
+ }
+}
+
+void WebViewImpl::ImeSetComposition(int string_type, int cursor_position,
+ int target_start, int target_end,
+ int string_length,
+ const wchar_t *string_data) {
+ Frame* focused = GetFocusedWebCoreFrame();
+ if (!focused || !ime_accept_events_) {
+ return;
+ }
+ Editor* editor = focused->editor();
+ if (!editor)
+ return;
+ 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;
+ }
+
+ if (string_type == 0) {
+ // 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.
+ // TODO(hbono): Need to add a new function to cancel the ongoing
+ // composition to WebCore::Editor?
+ WebCore::String empty_string;
+ editor->confirmComposition(empty_string);
+ } 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.
+ // NOTE: An empty string (often sent by Chinese IMEs and Korean IMEs)
+ // causes a panic in Editor::setComposition(), which deactivates the
+ // m_frame.m_sel member of this Editor object, i.e. we can never display
+ // composition strings in the m_compositionNode member.
+ // (I have not been able to find good methods for re-activating it.)
+ // Therefore, I have to prevent from calling Editor::setComposition()
+ // with its first argument an empty string.
+ if (string_length > 0) {
+ if (target_start < 0) target_start = 0;
+ if (target_end < 0) target_end = string_length;
+ WebCore::String composition_string(string_data, string_length);
+ // 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 = 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 == GCS_RESULTSTR) {
+ editor->confirmComposition();
+ }
+ }
+}
+
+bool WebViewImpl::ImeUpdateStatus(bool* enable_ime, const void **id,
+ int* x, int* y) {
+ // Initialize the return values so that we can disable the IME attached
+ // to a browser process when an error occurs while retrieving information
+ // of the focused edit control.
+ *enable_ime = false;
+ *id = NULL;
+ *x = -1;
+ *y = -1;
+ // Store the position of the bottom-left corner of the caret.
+ // 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 position of its bottom-left corner.
+ const Frame* focused = GetFocusedWebCoreFrame();
+ if (!focused)
+ return false;
+ const Editor* editor = focused->editor();
+ if (!editor || !editor->canEdit())
+ return false;
+ const SelectionController* controller = focused->selectionController();
+ if (!controller)
+ return false;
+ const Node* node = controller->start().node();
+ if (!node)
+ return false;
+ const FrameView* view = node->document()->view();
+ if (!view)
+ return false;
+ IntRect rect = view->contentsToWindow(controller->caretRect());
+ *x = rect.x();
+ *y = rect.bottom();
+ return true;
+}
+
+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::KEY_DOWN;
+ if (reverse)
+ keyboard_event.modifiers = WebInputEvent::SHIFT_KEY;
+ keyboard_event.key_code = VK_TAB;
+ keyboard_event.key_data = L'\t';
+ MakePlatformKeyboardEvent platform_event(keyboard_event);
+ // We have to set the key type explicitly to avoid an assert in the
+ // KeyboardEvent constructor.
+ platform_event.SetKeyType(PlatformKeyboardEvent::RawKeyDown);
+ KeyboardEvent webkit_event(platform_event, NULL);
+ page()->focusController()->setInitialFocus(
+ reverse ? WebCore::FocusDirectionBackward :
+ WebCore::FocusDirectionForward,
+ &webkit_event);
+ }
+}
+
+bool WebViewImpl::FocusedFrameNeedsSpellchecking() {
+ const WebCore::Frame* frame = GetFocusedWebCoreFrame();
+ if (!frame)
+ return false;
+ const WebCore::Document* document = frame->document();
+ if (!document)
+ return false;
+ const WebCore::Node* node = document->focusedNode();
+ if (!node)
+ return false;
+ const WebCore::RenderObject* renderer = node->renderer();
+ if (!renderer)
+ return false;
+ // We should also retrieve the contenteditable attribute of this element to
+ // determine if this element needs spell-checking.
+ const WebCore::EUserModify user_modify = renderer->style()->userModify();
+ return renderer->isTextArea() ||
+ user_modify == WebCore::READ_WRITE ||
+ user_modify == WebCore::READ_WRITE_PLAINTEXT_ONLY;
+}
+
+// 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 (!main_frame_ || !main_frame_->frame())
+ 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->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->setUsesUniversalDetector(preferences.uses_universal_detector);
+ settings->setTextAreasAreResizable(preferences.text_areas_are_resizable);
+ if (preferences.user_style_sheet_enabled) {
+ settings->setUserStyleSheetLocation(webkit_glue::GURLToKURL(
+ preferences.user_style_sheet_location));
+ } else {
+ settings->setUserStyleSheetLocation(KURL());
+ }
+
+ // 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->setUsesDashboardBackwardCompatibilityMode(
+ preferences.dashboard_compatibility_mode);
+ settings->setFontRenderingMode(NormalRenderingMode);
+ settings->setJavaEnabled(preferences.java_enabled);
+
+ // 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::RenderThemeWin::setDefaultFontSize(preferences.default_font_size);
+
+ // Used to make sure if the frameview needs layout, layout is triggered
+ // during Document::updateLayout(). TODO(tc): See bug 1199269 for more
+ // details.
+ FrameView* frameview = main_frame()->frameview();
+ if (frameview && frameview->needsLayout())
+ frameview->setNeedsLayout();
+}
+
+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 (!main_frame_)
+ return;
+
+ if (!encoding_name.empty()) {
+ // only change override encoding, don't change default encoding
+ String new_encoding_name(encoding_name.data());
+ main_frame_->frame()->loader()->reloadAllowingStaleData(new_encoding_name);
+ }
+}
+
+// Return the canonical encoding name of current main webframe in webview.
+std::wstring WebViewImpl::GetMainFrameEncodingName() {
+ if (!main_frame_)
+ return std::wstring(L"");
+
+ String encoding_name = main_frame_->frame()->loader()->encoding();
+ return std::wstring(encoding_name.charactersWithNullTermination());
+}
+
+void WebViewImpl::MakeTextLarger() {
+ Frame* frame = main_frame()->frame();
+ double multiplier = std::min(std::pow(kTextSizeMultiplierRatio,
+ text_zoom_level_ + 1),
+ kMaxTextSizeMultiplier);
+ int zoom_factor = static_cast<int>(100.0 * multiplier);
+ if (zoom_factor != frame->zoomFactor()) {
+ ++text_zoom_level_;
+ frame->setZoomFactor(zoom_factor);
+ }
+}
+
+void WebViewImpl::MakeTextSmaller() {
+ Frame* frame = main_frame()->frame();
+ double multiplier = std::max(std::pow(kTextSizeMultiplierRatio,
+ text_zoom_level_ - 1),
+ kMinTextSizeMultiplier);
+ int zoom_factor = static_cast<int>(100.0 * multiplier);
+ if (zoom_factor != frame->zoomFactor()) {
+ --text_zoom_level_;
+ frame->setZoomFactor(zoom_factor);
+ }
+}
+
+void WebViewImpl::MakeTextStandardSize() {
+ text_zoom_level_ = 0;
+ main_frame()->frame()->setZoomFactor(100);
+}
+
+void WebViewImpl::CopyImageAt(int x, int y) {
+ IntPoint point = IntPoint(x, y);
+
+ Frame* frame = main_frame_->frame();
+ if (!frame)
+ return;
+
+ HitTestResult result =
+ frame->eventHandler()->hitTestResultAtPoint(point, false);
+
+ 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;
+ }
+
+ frame->editor()->copyImage(result);
+}
+
+void WebViewImpl::InspectElement(int x, int y) {
+ if (x == -1 || y == -1) {
+ page_->inspectorController()->inspect(NULL);
+ } else {
+ IntPoint point = IntPoint(x, y);
+ HitTestResult result(point);
+
+ if (Frame* frame = main_frame_->frame())
+ result = frame->eventHandler()->hitTestResultAtPoint(point, false);
+
+ if (!result.innerNonSharedNode())
+ return;
+
+ page_->inspectorController()->inspect(result.innerNonSharedNode());
+ }
+}
+
+void WebViewImpl::ShowJavaScriptConsole() {
+ page_->inspectorController()->showConsole();
+}
+
+void WebViewImpl::DragSourceEndedAt(
+ int client_x, int client_y, int screen_x, int screen_y) {
+ PlatformMouseEvent pme(IntPoint(client_x, client_y),
+ IntPoint(screen_x, screen_y),
+ NoButton, MouseEventMoved, 0, false, false, false,
+ false, 0);
+ main_frame_->frame()->eventHandler()->dragSourceEndedAt(pme,
+ DragOperationCopy);
+}
+
+void WebViewImpl::DragSourceMovedTo(
+ int client_x, int client_y, int screen_x, int screen_y) {
+ PlatformMouseEvent pme(IntPoint(client_x, client_y),
+ IntPoint(screen_x, screen_y),
+ LeftButton, MouseEventMoved, 0, false, false, false,
+ false, 0);
+ main_frame_->frame()->eventHandler()->dragSourceMovedTo(pme);
+}
+
+void WebViewImpl::DragSourceSystemDragEnded() {
+ page_->dragController()->dragEnded();
+ DCHECK(doing_drag_and_drop_);
+ doing_drag_and_drop_ = false;
+}
+
+bool WebViewImpl::DragTargetDragEnter(const WebDropData& drop_data,
+ int client_x, int client_y, int screen_x, int screen_y) {
+ DCHECK(!current_drop_data_.get());
+
+ // Copy drop_data into current_drop_data_.
+ WebDropData* drop_data_copy = new WebDropData;
+ *drop_data_copy = drop_data;
+ current_drop_data_.reset(drop_data_copy);
+
+ DragData drag_data(reinterpret_cast<DragDataRef>(current_drop_data_.get()),
+ IntPoint(client_x, client_y), IntPoint(screen_x, screen_y),
+ kDropTargetOperation);
+ DragOperation effect = page_->dragController()->dragEntered(&drag_data);
+ return effect != DragOperationNone;
+}
+
+bool WebViewImpl::DragTargetDragOver(
+ int client_x, int client_y, int screen_x, int screen_y) {
+ DCHECK(current_drop_data_.get());
+ DragData drag_data(reinterpret_cast<DragDataRef>(current_drop_data_.get()),
+ IntPoint(client_x, client_y), IntPoint(screen_x, screen_y),
+ kDropTargetOperation);
+ DragOperation effect = page_->dragController()->dragUpdated(&drag_data);
+ return effect != DragOperationNone;
+}
+
+void WebViewImpl::DragTargetDragLeave() {
+ DCHECK(current_drop_data_.get());
+ DragData drag_data(reinterpret_cast<DragDataRef>(current_drop_data_.get()),
+ IntPoint(), IntPoint(), DragOperationNone);
+ page_->dragController()->dragExited(&drag_data);
+ current_drop_data_.reset(NULL);
+}
+
+void WebViewImpl::DragTargetDrop(
+ int client_x, int client_y, int screen_x, int screen_y) {
+ DCHECK(current_drop_data_.get());
+ DragData drag_data(reinterpret_cast<DragDataRef>(current_drop_data_.get()),
+ IntPoint(client_x, client_y), IntPoint(screen_x, screen_y),
+ kDropTargetOperation);
+ page_->dragController()->performDrag(&drag_data);
+ current_drop_data_.reset(NULL);
+}
+
+SearchableFormData* WebViewImpl::CreateSearchableFormDataForFocusedNode() {
+ if (!main_frame_)
+ return NULL;
+
+ Frame* frame = main_frame_->frame();
+ if (!frame)
+ return NULL;
+
+ if (RefPtr<Frame> focused =
+ frame->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::DidCommitLoad(bool* is_new_navigation) {
+ if (is_new_navigation)
+ *is_new_navigation = observed_new_navigation_;
+
+#ifndef NDEBUG
+ DCHECK(!observed_new_navigation_ ||
+ main_frame_->frame()->loader()->documentLoader() == new_navigation_loader_);
+ new_navigation_loader_ = NULL;
+#endif
+ observed_new_navigation_ = false;
+}
+
+void WebViewImpl::StartDragging(const WebDropData& drop_data) {
+ if (delegate_) {
+ DCHECK(!doing_drag_and_drop_);
+ doing_drag_and_drop_ = true;
+ delegate_->StartDragging(this, drop_data);
+ }
+}
+
+const WebCore::Node* WebViewImpl::getInspectedNode(WebCore::Frame* frame) {
+ DCHECK(frame);
+ WebFrameImpl* webframe_impl = WebFrameImpl::FromFrame(frame);
+ if (!webframe_impl)
+ return NULL;
+
+ return webframe_impl->inspected_node();
+}
+
+void WebViewImpl::ImageResourceDownloadDone(ImageResourceFetcher* fetcher,
+ bool errored,
+ const SkBitmap& image) {
+ if (delegate_) {
+ delegate_->DidDownloadImage(fetcher->id(), fetcher->image_url(), errored,
+ image);
+ }
+ DeleteImageResourceFetcher(fetcher);
+}
+
+//-----------------------------------------------------------------------------
+// WebCore::WidgetClientWin
+
+HWND WebViewImpl::containingWindow() {
+ return delegate_ ? delegate_->GetContainingWindow(this) : NULL;
+}
+
+void WebViewImpl::invalidateRect(const IntRect& damaged_rect) {
+ if (delegate_)
+ delegate_->DidInvalidateRect(this, gfx::Rect(damaged_rect.x(),
+ damaged_rect.y(),
+ damaged_rect.width(),
+ damaged_rect.height()));
+}
+
+void WebViewImpl::scrollRect(int dx, int dy, const IntRect& clip_rect) {
+ if (delegate_)
+ delegate_->DidScrollRect(this, dx, dy, gfx::Rect(clip_rect.x(),
+ clip_rect.y(),
+ clip_rect.width(),
+ clip_rect.height()));
+}
+
+void WebViewImpl::popupOpened(WebCore::Widget* widget,
+ const WebCore::IntRect& bounds) {
+ if (!delegate_)
+ return;
+
+ WebWidgetImpl* webwidget =
+ static_cast<WebWidgetImpl*>(delegate_->CreatePopupWidget(this));
+ webwidget->Init(widget, gfx::Rect(bounds.x(), bounds.y(),
+ bounds.width(), bounds.height()));
+}
+
+void WebViewImpl::popupClosed(WebCore::Widget* widget) {
+ NOTREACHED() << "popupClosed called on a non-popup";
+}
+
+void WebViewImpl::setCursor(const WebCore::Cursor& cursor) {
+ if (delegate_)
+ delegate_->SetCursor(this, cursor.impl());
+}
+
+void WebViewImpl::setFocus() {
+ if (delegate_)
+ delegate_->Focus(this);
+}
+
+const SkBitmap* WebViewImpl::getPreloadedResourceBitmap(int resource_id) {
+ if (!delegate_)
+ return NULL;
+
+ return delegate_->GetPreloadedResourceBitmap(resource_id);
+}
+
+void WebViewImpl::onScrollPositionChanged(WebCore::Widget* widget) {
+ // Scroll position changes should be reflected in the session history.
+ if (delegate_)
+ delegate_->OnNavStateChanged(this);
+}
+
+const WTF::Vector<RefPtr<WebCore::Range> >* WebViewImpl::getTickmarks(
+ WebCore::Frame* frame) {
+ DCHECK(frame);
+ WebFrameImpl* webframe_impl = WebFrameImpl::FromFrame(frame);
+ if (!webframe_impl)
+ return NULL;
+
+ return &webframe_impl->tickmarks();
+}
+
+size_t WebViewImpl::getActiveTickmarkIndex(WebCore::Frame* frame) {
+ DCHECK(frame);
+ WebFrameImpl* webframe_impl = WebFrameImpl::FromFrame(frame);
+ if (!webframe_impl)
+ return kNoTickmark;
+
+ // The mainframe can tell us if we are the frame with the active tick-mark.
+ if (webframe_impl != main_frame_->active_tickmark_frame())
+ return kNoTickmark;
+
+ return webframe_impl->active_tickmark_index();
+}
+
+//-----------------------------------------------------------------------------
+// WebCore::BackForwardListClient
+
+void WebViewImpl::didAddHistoryItem(WebCore::HistoryItem* item) {
+ // If WebCore adds a new HistoryItem, it means this is a new navigation
+ // (ie, not a reload or back/forward).
+ observed_new_navigation_ = true;
+#ifndef NDEBUG
+ new_navigation_loader_ = main_frame_->frame()->loader()->documentLoader();
+#endif
+}
+
+void WebViewImpl::willGoToHistoryItem(WebCore::HistoryItem* item) {
+ if (pending_history_item_) {
+ if (item == pending_history_item_->GetHistoryItem()) {
+ // Let the main frame know this HistoryItem is loading, so it can cache
+ // any ExtraData when the DataSource is created.
+ main_frame_->set_currently_loading_history_item(pending_history_item_);
+ pending_history_item_ = 0;
+ }
+ }
+}
+
+WebCore::HistoryItem* WebViewImpl::itemAtIndex(int index) {
+ if (!delegate_)
+ return NULL;
+
+ WebHistoryItem* item = delegate_->GetHistoryEntryAtOffset(index);
+ if (!item)
+ return NULL;
+
+ // If someone has asked for a history item, we probably want to navigate to
+ // it soon. Keep track of it until willGoToHistoryItem is called.
+ pending_history_item_ = static_cast<WebHistoryItemImpl*>(item);
+ return pending_history_item_->GetHistoryItem();
+}
+
+void WebViewImpl::goToItemAtIndexAsync(int index) {
+ if (delegate_)
+ delegate_->GoToEntryAtOffsetAsync(index);
+}
+
+int WebViewImpl::backListCount() {
+ if (!delegate_)
+ return 0;
+
+ return delegate_->GetHistoryBackListCount();
+}
+
+int WebViewImpl::forwardListCount() {
+ if (!delegate_)
+ return 0;
+
+ return delegate_->GetHistoryForwardListCount();
+}
+
+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);
+}