Add webkit to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@18 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 331 insertions, 0 deletions

diff --git a/webkit/glue/webview_impl.h b/webkit/glue/webview_impl.h
new file mode 100644
index 0000000..e22c49f
--- /dev/null
+++ b/webkit/glue/webview_impl.h
@@ -0,0 +1,331 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * 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.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "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 THE COPYRIGHT
+// OWNER 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.
+
+#ifndef WEBKIT_GLUE_WEBVIEW_IMPL_H__
+#define WEBKIT_GLUE_WEBVIEW_IMPL_H__
+
+#include <set>
+
+#include "base/basictypes.h"
+#include "base/gfx/point.h"
+#include "base/gfx/size.h"
+#include "webkit/glue/webdropdata.h"
+#include "webkit/glue/webframe_impl.h"
+#include "webkit/glue/webpreferences.h"
+#include "webkit/glue/webview.h"
+
+#pragma warning(push, 0)
+#include "webkit/port/history/BackForwardList.h"
+#include "webkit/port/platform/WidgetClientWin.h"
+#pragma warning(pop)
+
+namespace WebCore {
+  class Frame;
+  class HistoryItem;
+  class KeyboardEvent;
+  class Page;
+  class PlatformKeyboardEvent;
+  class Range;
+  class Widget;
+}
+
+class ImageResourceFetcher;
+class SearchableFormData;
+struct WebDropData;
+class WebHistoryItemImpl;
+class WebKeyboardEvent;
+class WebMouseEvent;
+class WebMouseWheelEvent;
+class WebViewDelegate;
+
+class WebViewImpl : public WebView,
+                    public WebCore::WidgetClientWin,
+                    public WebCore::BackForwardListClient {
+ public:
+  // WebView
+  virtual bool ShouldClose();
+  virtual void Close();
+  virtual WebViewDelegate* GetDelegate();
+  virtual void SetUseEditorDelegate(bool value);
+  virtual void SetTabKeyCyclesThroughElements(bool value);
+  virtual WebFrame* GetMainFrame();
+  virtual WebFrame* GetFocusedFrame();
+  virtual void SetFocusedFrame(WebFrame* frame);
+  virtual WebFrame* GetFrameWithName(const std::wstring& name);
+  virtual WebFrame* GetPreviousFrameBefore(WebFrame* frame, bool wrap);
+  virtual WebFrame* GetNextFrameAfter(WebFrame* frame, bool wrap);
+  virtual void Resize(const gfx::Size& new_size);
+  virtual gfx::Size GetSize() { return size(); }
+  virtual void Layout();
+  virtual void Paint(gfx::PlatformCanvas* canvas, const gfx::Rect& rect);
+  virtual bool HandleInputEvent(const WebInputEvent* input_event);
+  virtual void MouseCaptureLost();
+  virtual void SetFocus(bool enable);
+  virtual void StoreFocusForFrame(WebFrame* frame);
+  virtual void ImeSetComposition(int string_type, int cursor_position,
+                                 int target_start, int target_end,
+                                 int string_length,
+                                 const wchar_t *string_data);
+  virtual bool ImeUpdateStatus(bool* enable_ime, const void** id,
+                               int* x, int* y);
+  virtual void StopLoading();
+  virtual void SetBackForwardListSize(int size);
+  virtual void RestoreFocus();
+  virtual void SetInitialFocus(bool reverse);
+  virtual bool FocusedFrameNeedsSpellchecking();
+  virtual bool DownloadImage(int id, const GURL& image_url, int image_size);
+  virtual void SetPreferences(const WebPreferences& preferences);
+  virtual const WebPreferences& GetPreferences();
+  virtual void SetPageEncoding(const std::wstring& encoding_name);
+  virtual std::wstring GetMainFrameEncodingName();
+  virtual void MakeTextLarger();
+  virtual void MakeTextSmaller();
+  virtual void MakeTextStandardSize();
+  virtual void CopyImageAt(int x, int y);
+  virtual void InspectElement(int x, int y);
+  virtual void ShowJavaScriptConsole();
+  virtual void DragSourceEndedAt(
+      int client_x, int client_y, int screen_x, int screen_y);
+  virtual void DragSourceMovedTo(
+      int client_x, int client_y, int screen_x, int screen_y);
+  virtual void DragSourceSystemDragEnded();
+  virtual bool DragTargetDragEnter(const WebDropData& drop_data,
+      int client_x, int client_y, int screen_x, int screen_y);
+  virtual bool DragTargetDragOver(
+      int client_x, int client_y, int screen_x, int screen_y);
+  virtual void DragTargetDragLeave();
+  virtual void DragTargetDrop(
+      int client_x, int client_y, int screen_x, int screen_y);
+
+  // WebViewImpl
+
+  const gfx::Size& size() const { return size_; }
+
+  const gfx::Point& last_mouse_down_point() const {
+      return last_mouse_down_point_;
+  }
+
+  WebCore::Frame* GetFocusedWebCoreFrame();
+
+  static WebViewImpl* FromPage(WebCore::Page* page);
+
+  WebFrameImpl* main_frame() {
+    return main_frame_;
+  }
+
+  WebViewDelegate* delegate() {
+    return delegate_.get();
+  }
+
+  // Returns the page object associated with this view. This may be NULL when
+  // the page is shutting down, but will be valid all other times.
+  WebCore::Page* page() const {
+    return page_.get();
+  }
+
+  WebHistoryItemImpl* pending_history_item() const {
+    return pending_history_item_;
+  }
+
+  void MouseMove(const WebMouseEvent& mouse_event);
+  void MouseLeave(const WebMouseEvent& mouse_event);
+  void MouseDown(const WebMouseEvent& mouse_event);
+  void MouseUp(const WebMouseEvent& mouse_event);
+  void MouseDoubleClick(const WebMouseEvent& mouse_event);
+  void MouseWheel(const WebMouseWheelEvent& wheel_event);
+  bool KeyEvent(const WebKeyboardEvent& key_event);
+  bool CharEvent(const WebKeyboardEvent& key_event);
+
+  // Handles context menu events orignated via the the keyboard. These
+  // include the VK_APPS virtual key and the Shift+F10 combine.
+  // Code 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 down event.
+  bool SendContextMenuEvent(const WebKeyboardEvent& event);
+
+  // Releases references used to restore focus.
+  void ReleaseFocusReferences();
+
+  // Notifies the WebView that a load has been committed.
+  // is_new_navigation will be true if a new session history item should be
+  // created for that load.
+  void DidCommitLoad(bool* is_new_navigation);
+
+  bool context_menu_allowed() const {
+    return context_menu_allowed_;
+  }
+
+  // Set the disposition for how this webview is to be initially shown.
+  void set_window_open_disposition(WindowOpenDisposition disp) {
+    window_open_disposition_ = disp;
+  }
+  WindowOpenDisposition window_open_disposition() const {
+    return window_open_disposition_;
+  }
+
+  // Start a system drag and drop operation.
+  void StartDragging(const WebDropData& drop_data);
+
+  virtual const WebCore::Node* getInspectedNode(WebCore::Frame* frame);
+
+  // ImageResourceFetcher callback.
+  void ImageResourceDownloadDone(ImageResourceFetcher* fetcher,
+                                 bool errored,
+                                 const SkBitmap& image);
+
+ protected:
+  friend class WebView;  // So WebView::Create can call our constructor
+
+  WebViewImpl();
+  ~WebViewImpl();
+
+  void ModifySelection(UINT message,
+                       WebCore::Frame* frame,
+                       const WebCore::PlatformKeyboardEvent& e);
+
+  // WebCore::WidgetClientWin
+  virtual HWND containingWindow();
+  virtual void invalidateRect(const WebCore::IntRect& damaged_rect);
+  virtual void scrollRect(int dx, int dy, const WebCore::IntRect& clip_rect);
+  virtual void popupOpened(WebCore::Widget* widget,
+                           const WebCore::IntRect& bounds);
+  virtual void popupClosed(WebCore::Widget* widget);
+  virtual void setCursor(const WebCore::Cursor& cursor);
+  virtual void setFocus();
+  virtual const SkBitmap* getPreloadedResourceBitmap(int resource_id);
+  virtual void onScrollPositionChanged(WebCore::Widget* widget);
+  virtual const WTF::Vector<RefPtr<WebCore::Range> >* getTickmarks(
+      WebCore::Frame* frame);
+  virtual size_t getActiveTickmarkIndex(WebCore::Frame* frame);
+
+  // WebCore::BackForwardListClient
+  virtual void didAddHistoryItem(WebCore::HistoryItem* item);
+  virtual void willGoToHistoryItem(WebCore::HistoryItem* item);
+  virtual WebCore::HistoryItem* itemAtIndex(int index);
+  virtual void goToItemAtIndexAsync(int index);
+  virtual int backListCount();
+  virtual int forwardListCount();
+
+  // Creates and returns a new SearchableFormData for the focused node.
+  // It's up to the caller to free the returned SearchableFormData.
+  // This returns NULL if the focused node is NULL, or not in a valid form.
+  SearchableFormData* CreateSearchableFormDataForFocusedNode();
+
+  scoped_refptr<WebViewDelegate> delegate_;
+  gfx::Size size_;
+
+  scoped_refptr<WebFrameImpl> main_frame_;
+  gfx::Point last_mouse_position_;
+  // Reference to the Frame that last had focus. This is set once when
+  // we lose focus, and used when focus is gained to reinstall focus to
+  // the correct element.
+  RefPtr<WebCore::Frame> last_focused_frame_;
+  // Reference to the node that last had focus.
+  RefPtr<WebCore::Node> last_focused_node_;
+  scoped_ptr<WebCore::Page> page_;
+
+  // The last history item that was accessed via itemAtIndex().  We keep track
+  // of this until willGoToHistoryItem() is called, so we can track the
+  // navigation.
+  scoped_refptr<WebHistoryItemImpl> pending_history_item_;
+
+  // This flag is set when a new navigation is detected.  It is used to satisfy
+  // the corresponding argument to WebViewDelegate::DidCommitLoadForFrame.
+  bool observed_new_navigation_;
+#ifndef NDEBUG
+  // Used to assert that the new navigation we observed is the same navigation
+  // when we make use of observed_new_navigation_.
+  const WebCore::DocumentLoader* new_navigation_loader_;
+#endif
+
+  // A copy of the WebPreferences object we receive from the browser.
+  WebPreferences webprefs_;
+
+  // A copy of the web drop data object we received from the browser.
+  scoped_ptr<WebDropData> current_drop_data_;
+
+ private:
+  // Returns true if the event was actually processed.
+  bool KeyEventDefault(const WebKeyboardEvent& event);
+
+  // Returns true if the view was scrolled.
+  bool ScrollViewWithKeyboard(int key_code);
+
+  // Removes fetcher from the set of pending image fetchers and deletes it.
+  // This is invoked after the download is completed (or fails).
+  void DeleteImageResourceFetcher(ImageResourceFetcher* fetcher);
+
+  // ImageResourceFetchers schedule via DownloadImage.
+  std::set<ImageResourceFetcher*> image_fetchers_;
+
+  // The point relative to the client area where the mouse was last pressed
+  // down. This is used by the drag client to determine what was under the
+  // mouse when the drag was initiated. We need to track this here in
+  // WebViewImpl since DragClient::startDrag does not pass the position the
+  // mouse was at when the drag was initiated, only the current point, which
+  // can be misleading as it is usually not over the element the user actually
+  // dragged by the time a drag is initiated.
+  gfx::Point last_mouse_down_point_;
+
+  // Keeps track of the current text zoom level.  0 means no zoom, positive
+  // values mean larger text, negative numbers mean smaller text.
+  int text_zoom_level_;
+
+  bool context_menu_allowed_;
+
+  bool doing_drag_and_drop_;
+
+  // Webkit expects keyPress events to be suppressed if the associated keyDown
+  // event was handled. Safari implements this behavior by peeking out the
+  // associated WM_CHAR event if the keydown was handled. We emulate
+  // this behavior by setting this flag if the keyDown was handled.
+  bool suppress_next_keypress_event_;
+
+  // The disposition for how this webview is to be initially shown.
+  WindowOpenDisposition window_open_disposition_;
+
+  // Represents whether or not this object should process incoming IME events.
+  bool ime_accept_events_;
+
+  // HACK: current_input_event is for ChromeClientImpl::show(), until we can fix
+  // WebKit to pass enough information up into ChromeClient::show() so we can
+  // decide if the window.open event was caused by a middle-mouse click
+public:
+  static const WebInputEvent* current_input_event() {
+    return g_current_input_event;
+  }
+private:
+  static const WebInputEvent* g_current_input_event;
+
+  DISALLOW_EVIL_CONSTRUCTORS(WebViewImpl);
+};
+
+#endif  // WEBKIT_GLUE_WEBVIEW_IMPL_H__