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1 /* | |
2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions are | |
6 * met: | |
7 * | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above | |
11 * copyright notice, this list of conditions and the following disclaimer | |
12 * in the documentation and/or other materials provided with the | |
13 * distribution. | |
14 * * Neither the name of Google Inc. nor the names of its | |
15 * contributors may be used to endorse or promote products derived from | |
16 * this software without specific prior written permission. | |
17 * | |
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 */ | |
30 | |
31 #ifndef WebViewImpl_h | |
32 #define WebViewImpl_h | |
33 | |
34 // FIXME: Remove these relative paths once consumers from glue are removed. | |
35 #include "../public/WebNavigationPolicy.h" | |
36 #include "../public/WebPoint.h" | |
37 #include "../public/WebSize.h" | |
38 #include "../public/WebString.h" | |
39 #include "../public/WebView.h" | |
40 | |
41 #include "BackForwardListClientImpl.h" | |
42 #include "ChromeClientImpl.h" | |
43 #include "ContextMenuClientImpl.h" | |
44 #include "DragClientImpl.h" | |
45 #include "EditorClientImpl.h" | |
46 #include "InspectorClientImpl.h" | |
47 #include "NotificationPresenterImpl.h" | |
48 | |
49 #include <wtf/OwnPtr.h> | |
50 #include <wtf/RefCounted.h> | |
51 | |
52 namespace WebCore { | |
53 class ChromiumDataObject; | |
54 class Frame; | |
55 class HistoryItem; | |
56 class HitTestResult; | |
57 class KeyboardEvent; | |
58 class Page; | |
59 class PlatformKeyboardEvent; | |
60 class PopupContainer; | |
61 class Range; | |
62 class RenderTheme; | |
63 class Widget; | |
64 } | |
65 | |
66 namespace WebKit { | |
67 class AutocompletePopupMenuClient; | |
68 class ContextMenuClientImpl; | |
69 class WebAccessibilityObject; | |
70 class WebDevToolsAgentPrivate; | |
71 class WebFrameImpl; | |
72 class WebKeyboardEvent; | |
73 class WebMouseEvent; | |
74 class WebMouseWheelEvent; | |
75 class WebSettingsImpl; | |
76 | |
77 class WebViewImpl : public WebView, public RefCounted<WebViewImpl> { | |
78 public: | |
79 // WebWidget methods: | |
80 virtual void close(); | |
81 virtual WebSize size() { return m_size; } | |
82 virtual void resize(const WebSize&); | |
83 virtual void layout(); | |
84 virtual void paint(WebCanvas*, const WebRect&); | |
85 virtual bool handleInputEvent(const WebInputEvent&); | |
86 virtual void mouseCaptureLost(); | |
87 virtual void setFocus(bool enable); | |
88 virtual bool handleCompositionEvent(WebCompositionCommand command, | |
89 int cursorPosition, | |
90 int targetStart, | |
91 int targetEnd, | |
92 const WebString& text); | |
93 virtual bool queryCompositionStatus(bool* enabled, | |
94 WebRect* caretRect); | |
95 virtual void setTextDirection(WebTextDirection direction); | |
96 | |
97 // WebView methods: | |
98 virtual void initializeMainFrame(WebFrameClient*); | |
99 virtual WebSettings* settings(); | |
100 virtual WebString pageEncoding() const; | |
101 virtual void setPageEncoding(const WebString& encoding); | |
102 virtual bool isTransparent() const; | |
103 virtual void setIsTransparent(bool value); | |
104 virtual bool tabsToLinks() const; | |
105 virtual void setTabsToLinks(bool value); | |
106 virtual bool tabKeyCyclesThroughElements() const; | |
107 virtual void setTabKeyCyclesThroughElements(bool value); | |
108 virtual bool isActive() const; | |
109 virtual void setIsActive(bool value); | |
110 virtual bool dispatchBeforeUnloadEvent(); | |
111 virtual void dispatchUnloadEvent(); | |
112 virtual WebFrame* mainFrame(); | |
113 virtual WebFrame* findFrameByName( | |
114 const WebString& name, WebFrame* relativeToFrame); | |
115 virtual WebFrame* focusedFrame(); | |
116 virtual void setFocusedFrame(WebFrame* frame); | |
117 virtual void setInitialFocus(bool reverse); | |
118 virtual void clearFocusedNode(); | |
119 virtual void zoomIn(bool textOnly); | |
120 virtual void zoomOut(bool textOnly); | |
121 virtual void zoomDefault(); | |
122 virtual void performMediaPlayerAction( | |
123 const WebMediaPlayerAction& action, | |
124 const WebPoint& location); | |
125 virtual void copyImageAt(const WebPoint& point); | |
126 virtual void dragSourceEndedAt( | |
127 const WebPoint& clientPoint, | |
128 const WebPoint& screenPoint, | |
129 WebDragOperation operation); | |
130 virtual void dragSourceSystemDragEnded(); | |
131 virtual WebDragOperation dragTargetDragEnter( | |
132 const WebDragData& dragData, int identity, | |
133 const WebPoint& clientPoint, | |
134 const WebPoint& screenPoint, | |
135 WebDragOperationsMask operationsAllowed); | |
136 virtual WebDragOperation dragTargetDragOver( | |
137 const WebPoint& clientPoint, | |
138 const WebPoint& screenPoint, | |
139 WebDragOperationsMask operationsAllowed); | |
140 virtual void dragTargetDragLeave(); | |
141 virtual void dragTargetDrop( | |
142 const WebPoint& clientPoint, | |
143 const WebPoint& screenPoint); | |
144 virtual int dragIdentity(); | |
145 virtual bool setDropEffect(bool accept); | |
146 virtual void inspectElementAt(const WebPoint& point); | |
147 virtual WebString inspectorSettings() const; | |
148 virtual void setInspectorSettings(const WebString& settings); | |
149 virtual WebDevToolsAgent* devToolsAgent(); | |
150 virtual void setDevToolsAgent(WebDevToolsAgent*); | |
151 virtual WebAccessibilityObject accessibilityObject(); | |
152 virtual void applyAutofillSuggestions( | |
153 const WebNode&, | |
154 const WebVector<WebString>& suggestions, | |
155 int defaultSuggestionIndex); | |
156 virtual void hideAutofillPopup(); | |
157 | |
158 // WebViewImpl | |
159 | |
160 void setIgnoreInputEvents(bool newValue); | |
161 WebDevToolsAgentPrivate* devToolsAgentPrivate() { return m_devToolsAgent.get(); } | |
162 | |
163 const WebPoint& lastMouseDownPoint() const | |
164 { | |
165 return m_lastMouseDownPoint; | |
166 } | |
167 | |
168 WebCore::Frame* focusedWebCoreFrame(); | |
169 | |
170 // Returns the currently focused Node or null if no node has focus. | |
171 WebCore::Node* focusedWebCoreNode(); | |
172 | |
173 static WebViewImpl* fromPage(WebCore::Page*); | |
174 | |
175 WebViewClient* client() | |
176 { | |
177 return m_client; | |
178 } | |
179 | |
180 // Returns the page object associated with this view. This may be null when | |
181 // the page is shutting down, but will be valid at all other times. | |
182 WebCore::Page* page() const | |
183 { | |
184 return m_page.get(); | |
185 } | |
186 | |
187 WebCore::RenderTheme* theme() const; | |
188 | |
189 // Returns the main frame associated with this view. This may be null when | |
190 // the page is shutting down, but will be valid at all other times. | |
191 WebFrameImpl* mainFrameImpl(); | |
192 | |
193 // History related methods: | |
194 void setCurrentHistoryItem(WebCore::HistoryItem*); | |
195 WebCore::HistoryItem* previousHistoryItem(); | |
196 void observeNewNavigation(); | |
197 | |
198 // Event related methods: | |
199 void mouseMove(const WebMouseEvent&); | |
200 void mouseLeave(const WebMouseEvent&); | |
201 void mouseDown(const WebMouseEvent&); | |
202 void mouseUp(const WebMouseEvent&); | |
203 void mouseContextMenu(const WebMouseEvent&); | |
204 void mouseDoubleClick(const WebMouseEvent&); | |
205 void mouseWheel(const WebMouseWheelEvent&); | |
206 bool keyEvent(const WebKeyboardEvent&); | |
207 bool charEvent(const WebKeyboardEvent&); | |
208 | |
209 // Handles context menu events orignated via the the keyboard. These | |
210 // include the VK_APPS virtual key and the Shift+F10 combine. Code is | |
211 // based on the Webkit function bool WebView::handleContextMenuEvent(WPARAM | |
212 // wParam, LPARAM lParam) in webkit\webkit\win\WebView.cpp. The only | |
213 // significant change in this function is the code to convert from a | |
214 // Keyboard event to the Right Mouse button down event. | |
215 bool sendContextMenuEvent(const WebKeyboardEvent&); | |
216 | |
217 // Notifies the WebView that a load has been committed. isNewNavigation | |
218 // will be true if a new session history item should be created for that | |
219 // load. | |
220 void didCommitLoad(bool* isNewNavigation); | |
221 | |
222 bool contextMenuAllowed() const | |
223 { | |
224 return m_contextMenuAllowed; | |
225 } | |
226 | |
227 // Set the disposition for how this webview is to be initially shown. | |
228 void setInitialNavigationPolicy(WebNavigationPolicy policy) | |
229 { | |
230 m_initialNavigationPolicy = policy; | |
231 } | |
232 WebNavigationPolicy initialNavigationPolicy() const | |
233 { | |
234 return m_initialNavigationPolicy; | |
235 } | |
236 | |
237 // Determines whether a page should e.g. be opened in a background tab. | |
238 // Returns false if it has no opinion, in which case it doesn't set *policy. | |
239 static bool navigationPolicyFromMouseEvent( | |
240 unsigned short button, | |
241 bool ctrl, | |
242 bool shift, | |
243 bool alt, | |
244 bool meta, | |
245 WebNavigationPolicy*); | |
246 | |
247 // Start a system drag and drop operation. | |
248 void startDragging( | |
249 const WebPoint& eventPos, | |
250 const WebDragData& dragData, | |
251 WebDragOperationsMask dragSourceOperationMask); | |
252 | |
253 // Hides the autocomplete popup if it is showing. | |
254 void hideAutoCompletePopup(); | |
255 void autoCompletePopupDidHide(); | |
256 | |
257 #if ENABLE(NOTIFICATIONS) | |
258 // Returns the provider of desktop notifications. | |
259 NotificationPresenterImpl* notificationPresenterImpl(); | |
260 #endif | |
261 | |
262 // Tries to scroll a frame or any parent of a frame. Returns true if the view | |
263 // was scrolled. | |
264 bool propagateScroll(WebCore::ScrollDirection, WebCore::ScrollGranularity); | |
265 | |
266 // HACK: currentInputEvent() is for ChromeClientImpl::show(), until we can | |
267 // fix WebKit to pass enough information up into ChromeClient::show() so we | |
268 // can decide if the window.open event was caused by a middle-mouse click | |
269 static const WebInputEvent* currentInputEvent() | |
270 { | |
271 return m_currentInputEvent; | |
272 } | |
273 | |
274 private: | |
275 friend class WebView; // So WebView::Create can call our constructor | |
276 friend class WTF::RefCounted<WebViewImpl>; | |
277 | |
278 WebViewImpl(WebViewClient* client); | |
279 ~WebViewImpl(); | |
280 | |
281 // Returns true if the event was actually processed. | |
282 bool keyEventDefault(const WebKeyboardEvent&); | |
283 | |
284 // Returns true if the autocomple has consumed the event. | |
285 bool autocompleteHandleKeyEvent(const WebKeyboardEvent&); | |
286 | |
287 // Repaints the autofill popup. Should be called when the suggestions have | |
288 // changed. Note that this should only be called when the autofill popup is | |
289 // showing. | |
290 void refreshAutofillPopup(); | |
291 | |
292 // Returns true if the view was scrolled. | |
293 bool scrollViewWithKeyboard(int keyCode, int modifiers); | |
294 | |
295 // Converts |pos| from window coordinates to contents coordinates and gets | |
296 // the HitTestResult for it. | |
297 WebCore::HitTestResult hitTestResultForWindowPos(const WebCore::IntPoint&); | |
298 | |
299 WebViewClient* m_client; | |
300 | |
301 BackForwardListClientImpl m_backForwardListClientImpl; | |
302 ChromeClientImpl m_chromeClientImpl; | |
303 ContextMenuClientImpl m_contextMenuClientImpl; | |
304 DragClientImpl m_dragClientImpl; | |
305 EditorClientImpl m_editorClientImpl; | |
306 InspectorClientImpl m_inspectorClientImpl; | |
307 | |
308 WebSize m_size; | |
309 | |
310 WebPoint m_lastMousePosition; | |
311 OwnPtr<WebCore::Page> m_page; | |
312 | |
313 // This flag is set when a new navigation is detected. It is used to satisfy | |
314 // the corresponding argument to WebFrameClient::didCommitProvisionalLoad. | |
315 bool m_observedNewNavigation; | |
316 #ifndef NDEBUG | |
317 // Used to assert that the new navigation we observed is the same navigation | |
318 // when we make use of m_observedNewNavigation. | |
319 const WebCore::DocumentLoader* m_newNavigationLoader; | |
320 #endif | |
321 | |
322 // An object that can be used to manipulate m_page->settings() without linking | |
323 // against WebCore. This is lazily allocated the first time GetWebSettings() | |
324 // is called. | |
325 OwnPtr<WebSettingsImpl> m_webSettings; | |
326 | |
327 // A copy of the web drop data object we received from the browser. | |
328 RefPtr<WebCore::ChromiumDataObject> m_currentDragData; | |
329 | |
330 // The point relative to the client area where the mouse was last pressed | |
331 // down. This is used by the drag client to determine what was under the | |
332 // mouse when the drag was initiated. We need to track this here in | |
333 // WebViewImpl since DragClient::startDrag does not pass the position the | |
334 // mouse was at when the drag was initiated, only the current point, which | |
335 // can be misleading as it is usually not over the element the user actually | |
336 // dragged by the time a drag is initiated. | |
337 WebPoint m_lastMouseDownPoint; | |
338 | |
339 // Keeps track of the current text zoom level. 0 means no zoom, positive | |
340 // values mean larger text, negative numbers mean smaller. | |
341 int m_zoomLevel; | |
342 | |
343 bool m_contextMenuAllowed; | |
344 | |
345 bool m_doingDragAndDrop; | |
346 | |
347 bool m_ignoreInputEvents; | |
348 | |
349 // Webkit expects keyPress events to be suppressed if the associated keyDown | |
350 // event was handled. Safari implements this behavior by peeking out the | |
351 // associated WM_CHAR event if the keydown was handled. We emulate | |
352 // this behavior by setting this flag if the keyDown was handled. | |
353 bool m_suppressNextKeypressEvent; | |
354 | |
355 // The policy for how this webview is to be initially shown. | |
356 WebNavigationPolicy m_initialNavigationPolicy; | |
357 | |
358 // Represents whether or not this object should process incoming IME events. | |
359 bool m_imeAcceptEvents; | |
360 | |
361 // True while dispatching system drag and drop events to drag/drop targets | |
362 // within this WebView. | |
363 bool m_dragTargetDispatch; | |
364 | |
365 // Valid when m_dragTargetDispatch is true; the identity of the drag data | |
366 // copied from the WebDropData object sent from the browser process. | |
367 int m_dragIdentity; | |
368 | |
369 // Valid when m_dragTargetDispatch is true. Used to override the default | |
370 // browser drop effect with the effects "none" or "copy". | |
371 enum DragTargetDropEffect { | |
372 DropEffectDefault = -1, | |
373 DropEffectNone, | |
374 DropEffectCopy | |
375 } m_dropEffect; | |
376 | |
377 // The available drag operations (copy, move link...) allowed by the source. | |
378 WebDragOperation m_operationsAllowed; | |
379 | |
380 // The current drag operation as negotiated by the source and destination. | |
381 // When not equal to DragOperationNone, the drag data can be dropped onto the | |
382 // current drop target in this WebView (the drop target can accept the drop). | |
383 WebDragOperation m_dragOperation; | |
384 | |
385 // The autocomplete popup. Kept around and reused every-time new suggestions | |
386 // should be shown. | |
387 RefPtr<WebCore::PopupContainer> m_autocompletePopup; | |
388 | |
389 // Whether the autocomplete popup is currently showing. | |
390 bool m_autocompletePopupShowing; | |
391 | |
392 // The autocomplete client. | |
393 OwnPtr<AutocompletePopupMenuClient> m_autocompletePopupClient; | |
394 | |
395 OwnPtr<WebDevToolsAgentPrivate> m_devToolsAgent; | |
396 | |
397 // Whether the webview is rendering transparently. | |
398 bool m_isTransparent; | |
399 | |
400 // Whether the user can press tab to focus links. | |
401 bool m_tabsToLinks; | |
402 | |
403 // Inspector settings. | |
404 WebString m_inspectorSettings; | |
405 | |
406 #if ENABLE(NOTIFICATIONS) | |
407 // The provider of desktop notifications; | |
408 NotificationPresenterImpl m_notificationPresenter; | |
409 #endif | |
410 | |
411 static const WebInputEvent* m_currentInputEvent; | |
412 }; | |
413 | |
414 } // namespace WebKit | |
415 | |
416 #endif | |
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