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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef WEBKIT_GLUE_WEBVIEW_IMPL_H_ | |
6 #define WEBKIT_GLUE_WEBVIEW_IMPL_H_ | |
7 | |
8 #include <wtf/OwnPtr.h> | |
9 #include <wtf/RefCounted.h> | |
10 | |
11 #include "webkit/api/public/WebPoint.h" | |
12 #include "webkit/api/public/WebSize.h" | |
13 #include "webkit/api/public/WebString.h" | |
14 #include "webkit/api/public/WebView.h" | |
15 #include "webkit/api/src/BackForwardListClientImpl.h" | |
16 #include "webkit/api/src/ChromeClientImpl.h" | |
17 #include "webkit/api/src/ContextMenuClientImpl.h" | |
18 #include "webkit/api/src/DragClientImpl.h" | |
19 #include "webkit/api/src/EditorClientImpl.h" | |
20 #include "webkit/api/src/InspectorClientImpl.h" | |
21 #include "webkit/api/src/NotificationPresenterImpl.h" | |
22 #include "webkit/glue/webframe_impl.h" | |
23 | |
24 namespace WebCore { | |
25 class ChromiumDataObject; | |
26 class Frame; | |
27 class HistoryItem; | |
28 class HitTestResult; | |
29 class KeyboardEvent; | |
30 class Page; | |
31 class PlatformKeyboardEvent; | |
32 class PopupContainer; | |
33 class Range; | |
34 class RenderTheme; | |
35 class Widget; | |
36 } | |
37 | |
38 namespace WebKit { | |
39 class ContextMenuClientImpl; | |
40 class WebAccessibilityObject; | |
41 class WebKeyboardEvent; | |
42 class WebMouseEvent; | |
43 class WebMouseWheelEvent; | |
44 class WebSettingsImpl; | |
45 } | |
46 | |
47 namespace webkit_glue { | |
48 class ImageResourceFetcher; | |
49 } | |
50 | |
51 class AutocompletePopupMenuClient; | |
52 class WebHistoryItemImpl; | |
53 class WebDevToolsAgentImpl; | |
54 | |
55 class WebViewImpl : public WebKit::WebView, public RefCounted<WebViewImpl> { | |
56 public: | |
57 // WebWidget methods: | |
58 virtual void close(); | |
59 virtual WebKit::WebSize size() { return size_; } | |
60 virtual void resize(const WebKit::WebSize& new_size); | |
61 virtual void layout(); | |
62 virtual void paint(WebKit::WebCanvas* canvas, | |
63 const WebKit::WebRect& rect); | |
64 virtual bool handleInputEvent(const WebKit::WebInputEvent& input_event); | |
65 virtual void mouseCaptureLost(); | |
66 virtual void setFocus(bool enable); | |
67 virtual bool handleCompositionEvent(WebKit::WebCompositionCommand command, | |
68 int cursor_position, | |
69 int target_start, | |
70 int target_end, | |
71 const WebKit::WebString& text); | |
72 virtual bool queryCompositionStatus(bool* enabled, | |
73 WebKit::WebRect* caret_rect); | |
74 virtual void setTextDirection(WebKit::WebTextDirection direction); | |
75 | |
76 // WebView methods: | |
77 virtual void initializeMainFrame(WebKit::WebFrameClient*); | |
78 virtual WebKit::WebSettings* settings(); | |
79 virtual WebKit::WebString pageEncoding() const; | |
80 virtual void setPageEncoding(const WebKit::WebString& encoding); | |
81 virtual bool isTransparent() const; | |
82 virtual void setIsTransparent(bool value); | |
83 virtual bool tabsToLinks() const; | |
84 virtual void setTabsToLinks(bool value); | |
85 virtual bool tabKeyCyclesThroughElements() const; | |
86 virtual void setTabKeyCyclesThroughElements(bool value); | |
87 virtual bool isActive() const; | |
88 virtual void setIsActive(bool value); | |
89 virtual bool dispatchBeforeUnloadEvent(); | |
90 virtual void dispatchUnloadEvent(); | |
91 virtual WebKit::WebFrame* mainFrame(); | |
92 virtual WebKit::WebFrame* findFrameByName( | |
93 const WebKit::WebString& name, WebKit::WebFrame* relative_to_frame); | |
94 virtual WebKit::WebFrame* focusedFrame(); | |
95 virtual void setFocusedFrame(WebKit::WebFrame* frame); | |
96 virtual void setInitialFocus(bool reverse); | |
97 virtual void clearFocusedNode(); | |
98 virtual void zoomIn(bool text_only); | |
99 virtual void zoomOut(bool text_only); | |
100 virtual void zoomDefault(); | |
101 virtual void performMediaPlayerAction( | |
102 const WebKit::WebMediaPlayerAction& action, | |
103 const WebKit::WebPoint& location); | |
104 virtual void copyImageAt(const WebKit::WebPoint& point); | |
105 virtual void dragSourceEndedAt( | |
106 const WebKit::WebPoint& client_point, | |
107 const WebKit::WebPoint& screen_point, | |
108 WebKit::WebDragOperation operation); | |
109 virtual void dragSourceMovedTo( | |
110 const WebKit::WebPoint& client_point, | |
111 const WebKit::WebPoint& screen_point); | |
112 virtual void dragSourceSystemDragEnded(); | |
113 virtual WebKit::WebDragOperation dragTargetDragEnter( | |
114 const WebKit::WebDragData& drag_data, int identity, | |
115 const WebKit::WebPoint& client_point, | |
116 const WebKit::WebPoint& screen_point, | |
117 WebKit::WebDragOperationsMask operations_allowed); | |
118 virtual WebKit::WebDragOperation dragTargetDragOver( | |
119 const WebKit::WebPoint& client_point, | |
120 const WebKit::WebPoint& screen_point, | |
121 WebKit::WebDragOperationsMask operations_allowed); | |
122 virtual void dragTargetDragLeave(); | |
123 virtual void dragTargetDrop( | |
124 const WebKit::WebPoint& client_point, | |
125 const WebKit::WebPoint& screen_point); | |
126 virtual int dragIdentity(); | |
127 virtual bool setDropEffect(bool accept); | |
128 virtual void inspectElementAt(const WebKit::WebPoint& point); | |
129 virtual WebKit::WebString inspectorSettings() const; | |
130 virtual void setInspectorSettings(const WebKit::WebString& settings); | |
131 virtual WebKit::WebDevToolsAgent* devToolsAgent(); | |
132 virtual WebKit::WebAccessibilityObject accessibilityObject(); | |
133 virtual void applyAutofillSuggestions( | |
134 const WebKit::WebNode&, | |
135 const WebKit::WebVector<WebKit::WebString>& suggestions, | |
136 int defaultSuggestionIndex); | |
137 virtual void hideAutofillPopup(); | |
138 | |
139 // WebViewImpl | |
140 | |
141 void SetIgnoreInputEvents(bool new_value); | |
142 WebDevToolsAgentImpl* GetWebDevToolsAgentImpl(); | |
143 | |
144 const WebKit::WebPoint& last_mouse_down_point() const { | |
145 return last_mouse_down_point_; | |
146 } | |
147 | |
148 WebCore::Frame* GetFocusedWebCoreFrame(); | |
149 | |
150 // Returns the currently focused Node or NULL if no node has focus. | |
151 WebCore::Node* GetFocusedNode(); | |
152 | |
153 static WebViewImpl* FromPage(WebCore::Page* page); | |
154 | |
155 WebKit::WebViewClient* client() { | |
156 return client_; | |
157 } | |
158 | |
159 // Returns the page object associated with this view. This may be NULL when | |
160 // the page is shutting down, but will be valid at all other times. | |
161 WebCore::Page* page() const { | |
162 return page_.get(); | |
163 } | |
164 | |
165 WebCore::RenderTheme* theme() const; | |
166 | |
167 // Returns the main frame associated with this view. This may be NULL when | |
168 // the page is shutting down, but will be valid at all other times. | |
169 WebFrameImpl* main_frame() { | |
170 return page_.get() ? WebFrameImpl::FromFrame(page_->mainFrame()) : NULL; | |
171 } | |
172 | |
173 // History related methods: | |
174 void SetCurrentHistoryItem(WebCore::HistoryItem* item); | |
175 WebCore::HistoryItem* GetPreviousHistoryItem(); | |
176 void ObserveNewNavigation(); | |
177 | |
178 // Event related methods: | |
179 void MouseMove(const WebKit::WebMouseEvent& mouse_event); | |
180 void MouseLeave(const WebKit::WebMouseEvent& mouse_event); | |
181 void MouseDown(const WebKit::WebMouseEvent& mouse_event); | |
182 void MouseUp(const WebKit::WebMouseEvent& mouse_event); | |
183 void MouseContextMenu(const WebKit::WebMouseEvent& mouse_event); | |
184 void MouseDoubleClick(const WebKit::WebMouseEvent& mouse_event); | |
185 void MouseWheel(const WebKit::WebMouseWheelEvent& wheel_event); | |
186 bool KeyEvent(const WebKit::WebKeyboardEvent& key_event); | |
187 bool CharEvent(const WebKit::WebKeyboardEvent& key_event); | |
188 | |
189 // Handles context menu events orignated via the the keyboard. These | |
190 // include the VK_APPS virtual key and the Shift+F10 combine. | |
191 // Code is based on the Webkit function | |
192 // bool WebView::handleContextMenuEvent(WPARAM wParam, LPARAM lParam) in | |
193 // webkit\webkit\win\WebView.cpp. The only significant change in this | |
194 // function is the code to convert from a Keyboard event to the Right | |
195 // Mouse button down event. | |
196 bool SendContextMenuEvent(const WebKit::WebKeyboardEvent& event); | |
197 | |
198 // Notifies the WebView that a load has been committed. | |
199 // is_new_navigation will be true if a new session history item should be | |
200 // created for that load. | |
201 void DidCommitLoad(bool* is_new_navigation); | |
202 | |
203 bool context_menu_allowed() const { | |
204 return context_menu_allowed_; | |
205 } | |
206 | |
207 // Set the disposition for how this webview is to be initially shown. | |
208 void set_initial_navigation_policy(WebKit::WebNavigationPolicy policy) { | |
209 initial_navigation_policy_ = policy; | |
210 } | |
211 WebKit::WebNavigationPolicy initial_navigation_policy() const { | |
212 return initial_navigation_policy_; | |
213 } | |
214 | |
215 // Determines whether a page should e.g. be opened in a background tab. | |
216 // Returns false if it has no opinion, in which case it doesn't set *policy. | |
217 static bool NavigationPolicyFromMouseEvent( | |
218 unsigned short button, | |
219 bool ctrl, | |
220 bool shift, | |
221 bool alt, | |
222 bool meta, | |
223 WebKit::WebNavigationPolicy* policy); | |
224 | |
225 // Start a system drag and drop operation. | |
226 void StartDragging( | |
227 const WebKit::WebPoint& event_pos, | |
228 const WebKit::WebDragData& drag_data, | |
229 WebKit::WebDragOperationsMask drag_source_operation_mask); | |
230 | |
231 // Hides the autocomplete popup if it is showing. | |
232 void HideAutoCompletePopup(); | |
233 void AutoCompletePopupDidHide(); | |
234 | |
235 #if ENABLE(NOTIFICATIONS) | |
236 // Returns the provider of desktop notifications. | |
237 WebKit::NotificationPresenterImpl* GetNotificationPresenter(); | |
238 #endif | |
239 | |
240 // Tries to scroll a frame or any parent of a frame. Returns true if the view | |
241 // was scrolled. | |
242 bool PropagateScroll(WebCore::ScrollDirection scroll_direction, | |
243 WebCore::ScrollGranularity scroll_granularity); | |
244 | |
245 protected: | |
246 friend class WebKit::WebView; // So WebView::Create can call our constructor | |
247 friend class WTF::RefCounted<WebViewImpl>; | |
248 | |
249 WebViewImpl(WebKit::WebViewClient* client); | |
250 ~WebViewImpl(); | |
251 | |
252 void ModifySelection(uint32 message, | |
253 WebCore::Frame* frame, | |
254 const WebCore::PlatformKeyboardEvent& e); | |
255 | |
256 WebKit::WebViewClient* client_; | |
257 | |
258 WebKit::BackForwardListClientImpl back_forward_list_client_impl_; | |
259 WebKit::ChromeClientImpl chrome_client_impl_; | |
260 WebKit::ContextMenuClientImpl context_menu_client_impl_; | |
261 WebKit::DragClientImpl drag_client_impl_; | |
262 WebKit::EditorClientImpl editor_client_impl_; | |
263 WebKit::InspectorClientImpl inspector_client_impl_; | |
264 | |
265 WebKit::WebSize size_; | |
266 | |
267 WebKit::WebPoint last_mouse_position_; | |
268 OwnPtr<WebCore::Page> page_; | |
269 | |
270 // This flag is set when a new navigation is detected. It is used to satisfy | |
271 // the corresponding argument to WebFrameClient::didCommitProvisionalLoad. | |
272 bool observed_new_navigation_; | |
273 #ifndef NDEBUG | |
274 // Used to assert that the new navigation we observed is the same navigation | |
275 // when we make use of observed_new_navigation_. | |
276 const WebCore::DocumentLoader* new_navigation_loader_; | |
277 #endif | |
278 | |
279 // An object that can be used to manipulate page_->settings() without linking | |
280 // against WebCore. This is lazily allocated the first time GetWebSettings() | |
281 // is called. | |
282 OwnPtr<WebKit::WebSettingsImpl> web_settings_; | |
283 | |
284 // A copy of the web drop data object we received from the browser. | |
285 RefPtr<WebCore::ChromiumDataObject> current_drag_data_; | |
286 | |
287 private: | |
288 // Returns true if the event was actually processed. | |
289 bool KeyEventDefault(const WebKit::WebKeyboardEvent& event); | |
290 | |
291 // Returns true if the autocomple has consumed the event. | |
292 bool AutocompleteHandleKeyEvent(const WebKit::WebKeyboardEvent& event); | |
293 | |
294 // Repaints the autofill popup. Should be called when the suggestions have | |
295 // changed. Note that this should only be called when the autofill popup is | |
296 // showing. | |
297 void RefreshAutofillPopup(); | |
298 | |
299 // Returns true if the view was scrolled. | |
300 bool ScrollViewWithKeyboard(int key_code, int modifiers); | |
301 | |
302 // Converts |pos| from window coordinates to contents coordinates and gets | |
303 // the HitTestResult for it. | |
304 WebCore::HitTestResult HitTestResultForWindowPos( | |
305 const WebCore::IntPoint& pos); | |
306 | |
307 // The point relative to the client area where the mouse was last pressed | |
308 // down. This is used by the drag client to determine what was under the | |
309 // mouse when the drag was initiated. We need to track this here in | |
310 // WebViewImpl since DragClient::startDrag does not pass the position the | |
311 // mouse was at when the drag was initiated, only the current point, which | |
312 // can be misleading as it is usually not over the element the user actually | |
313 // dragged by the time a drag is initiated. | |
314 WebKit::WebPoint last_mouse_down_point_; | |
315 | |
316 // Keeps track of the current text zoom level. 0 means no zoom, positive | |
317 // values mean larger text, negative numbers mean smaller. | |
318 int zoom_level_; | |
319 | |
320 bool context_menu_allowed_; | |
321 | |
322 bool doing_drag_and_drop_; | |
323 | |
324 bool ignore_input_events_; | |
325 | |
326 // Webkit expects keyPress events to be suppressed if the associated keyDown | |
327 // event was handled. Safari implements this behavior by peeking out the | |
328 // associated WM_CHAR event if the keydown was handled. We emulate | |
329 // this behavior by setting this flag if the keyDown was handled. | |
330 bool suppress_next_keypress_event_; | |
331 | |
332 // The policy for how this webview is to be initially shown. | |
333 WebKit::WebNavigationPolicy initial_navigation_policy_; | |
334 | |
335 // Represents whether or not this object should process incoming IME events. | |
336 bool ime_accept_events_; | |
337 | |
338 // True while dispatching system drag and drop events to drag/drop targets | |
339 // within this WebView. | |
340 bool drag_target_dispatch_; | |
341 | |
342 // Valid when drag_target_dispatch_ is true; the identity of the drag data | |
343 // copied from the WebDropData object sent from the browser process. | |
344 int32 drag_identity_; | |
345 | |
346 // Valid when drag_target_dispatch_ is true. Used to override the default | |
347 // browser drop effect with the effects "none" or "copy". | |
348 enum DragTargetDropEffect { | |
349 DROP_EFFECT_DEFAULT = -1, | |
350 DROP_EFFECT_NONE, | |
351 DROP_EFFECT_COPY | |
352 } drop_effect_; | |
353 | |
354 // The available drag operations (copy, move link...) allowed by the source. | |
355 WebKit::WebDragOperation operations_allowed_; | |
356 | |
357 // The current drag operation as negotiated by the source and destination. | |
358 // When not equal to DragOperationNone, the drag data can be dropped onto the | |
359 // current drop target in this WebView (the drop target can accept the drop). | |
360 WebKit::WebDragOperation drag_operation_; | |
361 | |
362 // The autocomplete popup. Kept around and reused every-time new suggestions | |
363 // should be shown. | |
364 RefPtr<WebCore::PopupContainer> autocomplete_popup_; | |
365 | |
366 // Whether the autocomplete popup is currently showing. | |
367 bool autocomplete_popup_showing_; | |
368 | |
369 // The autocomplete client. | |
370 OwnPtr<AutocompletePopupMenuClient> autocomplete_popup_client_; | |
371 | |
372 OwnPtr<WebDevToolsAgentImpl> devtools_agent_; | |
373 | |
374 // Whether the webview is rendering transparently. | |
375 bool is_transparent_; | |
376 | |
377 // Whether the user can press tab to focus links. | |
378 bool tabs_to_links_; | |
379 | |
380 // Inspector settings. | |
381 WebKit::WebString inspector_settings_; | |
382 | |
383 #if ENABLE(NOTIFICATIONS) | |
384 // The provider of desktop notifications; | |
385 WebKit::NotificationPresenterImpl notification_presenter_; | |
386 #endif | |
387 | |
388 // HACK: current_input_event is for ChromeClientImpl::show(), until we can fix | |
389 // WebKit to pass enough information up into ChromeClient::show() so we can | |
390 // decide if the window.open event was caused by a middle-mouse click | |
391 public: | |
392 static const WebKit::WebInputEvent* current_input_event() { | |
393 return g_current_input_event; | |
394 } | |
395 private: | |
396 static const WebKit::WebInputEvent* g_current_input_event; | |
397 | |
398 DISALLOW_COPY_AND_ASSIGN(WebViewImpl); | |
399 }; | |
400 | |
401 #endif // WEBKIT_GLUE_WEBVIEW_IMPL_H_ | |
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