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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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