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31 #ifndef WebFrameImpl_h
32 #define WebFrameImpl_h
36 #include "FrameLoaderClientImpl.h"
37 #include "core/frame/Frame.h"
38 #include "platform/geometry/FloatRect.h"
39 #include "public/platform/WebFileSystemType.h"
40 #include "wtf/Compiler.h"
41 #include "wtf/OwnPtr.h"
42 #include "wtf/RefCounted.h"
43 #include "wtf/text/WTFString.h"
46 class GraphicsContext;
47 class HTMLInputElement;
54 struct FrameLoadRequest;
55 struct WindowFeatures;
59 class ChromePrintContext;
60 class SharedWorkerRepositoryClientImpl;
61 class WebDataSourceImpl;
62 class WebInputElement;
65 class WebPluginContainerImpl;
68 struct WebPrintParams;
70 template <typename T> class WebVector;
72 // Implementation of WebFrame, note that this is a reference counted object.
73 class WebFrameImpl FINAL
75 , public RefCounted<WebFrameImpl> {
78 virtual void close() OVERRIDE;
79 virtual WebString uniqueName() const OVERRIDE;
80 virtual WebString assignedName() const OVERRIDE;
81 virtual void setName(const WebString&) OVERRIDE;
82 virtual long long embedderIdentifier() const OVERRIDE;
83 virtual WebVector<WebIconURL> iconURLs(int iconTypesMask) const OVERRIDE;
84 virtual void setIsRemote(bool) OVERRIDE;
85 virtual void setRemoteWebLayer(WebLayer*) OVERRIDE;
86 virtual void setPermissionClient(WebPermissionClient*) OVERRIDE;
87 virtual void setSharedWorkerRepositoryClient(WebSharedWorkerRepositoryClient*) OVERRIDE;
88 virtual WebSize scrollOffset() const OVERRIDE;
89 virtual void setScrollOffset(const WebSize&) OVERRIDE;
90 virtual WebSize minimumScrollOffset() const OVERRIDE;
91 virtual WebSize maximumScrollOffset() const OVERRIDE;
92 virtual WebSize contentsSize() const OVERRIDE;
93 virtual bool hasVisibleContent() const OVERRIDE;
94 virtual WebRect visibleContentRect() const OVERRIDE;
95 virtual bool hasHorizontalScrollbar() const OVERRIDE;
96 virtual bool hasVerticalScrollbar() const OVERRIDE;
97 virtual WebView* view() const OVERRIDE;
98 virtual WebFrame* opener() const OVERRIDE;
99 virtual void setOpener(const WebFrame*) OVERRIDE;
100 virtual void appendChild(WebFrame*) OVERRIDE;
101 virtual void removeChild(WebFrame*) OVERRIDE;
102 virtual WebFrame* parent() const OVERRIDE;
103 virtual WebFrame* top() const OVERRIDE;
104 virtual WebFrame* previousSibling() const OVERRIDE;
105 virtual WebFrame* nextSibling() const OVERRIDE;
106 virtual WebFrame* firstChild() const OVERRIDE;
107 virtual WebFrame* lastChild() const OVERRIDE;
108 virtual WebFrame* traversePrevious(bool wrap) const OVERRIDE;
109 virtual WebFrame* traverseNext(bool wrap) const OVERRIDE;
110 virtual WebFrame* findChildByName(const WebString&) const OVERRIDE;
111 virtual WebFrame* findChildByExpression(const WebString&) const OVERRIDE;
112 virtual WebDocument document() const OVERRIDE;
113 virtual WebPerformance performance() const OVERRIDE;
114 virtual NPObject* windowObject() const OVERRIDE;
115 virtual void bindToWindowObject(const WebString& name, NPObject*) OVERRIDE;
116 virtual void bindToWindowObject(const WebString& name, NPObject*, void*) OVERRIDE;
117 virtual void executeScript(const WebScriptSource&) OVERRIDE;
118 virtual void executeScriptInIsolatedWorld(
119 int worldID, const WebScriptSource* sources, unsigned numSources,
120 int extensionGroup) OVERRIDE;
121 virtual void setIsolatedWorldSecurityOrigin(int worldID, const WebSecurityOrigin&) OVERRIDE;
122 virtual void setIsolatedWorldContentSecurityPolicy(int worldID, const WebString&) OVERRIDE;
123 virtual void addMessageToConsole(const WebConsoleMessage&) OVERRIDE;
124 virtual void collectGarbage() OVERRIDE;
125 virtual bool checkIfRunInsecureContent(const WebURL&) const OVERRIDE;
126 virtual v8::Handle<v8::Value> executeScriptAndReturnValue(
127 const WebScriptSource&) OVERRIDE;
128 virtual void executeScriptInIsolatedWorld(
129 int worldID, const WebScriptSource* sourcesIn, unsigned numSources,
130 int extensionGroup, WebVector<v8::Local<v8::Value> >* results) OVERRIDE;
131 virtual v8::Handle<v8::Value> callFunctionEvenIfScriptDisabled(
132 v8::Handle<v8::Function>,
133 v8::Handle<v8::Object>,
135 v8::Handle<v8::Value> argv[]) OVERRIDE;
136 virtual v8::Local<v8::Context> mainWorldScriptContext() const OVERRIDE;
137 virtual v8::Handle<v8::Value> createFileSystem(WebFileSystemType,
138 const WebString& name,
139 const WebString& path) OVERRIDE;
140 virtual v8::Handle<v8::Value> createSerializableFileSystem(WebFileSystemType,
141 const WebString& name,
142 const WebString& path) OVERRIDE;
143 virtual v8::Handle<v8::Value> createFileEntry(WebFileSystemType,
144 const WebString& fileSystemName,
145 const WebString& fileSystemPath,
146 const WebString& filePath,
147 bool isDirectory) OVERRIDE;
148 virtual void reload(bool ignoreCache) OVERRIDE;
149 virtual void reloadWithOverrideURL(const WebURL& overrideUrl, bool ignoreCache) OVERRIDE;
150 virtual void loadRequest(const WebURLRequest&) OVERRIDE;
151 virtual void loadHistoryItem(const WebHistoryItem&, WebURLRequest::CachePolicy) OVERRIDE;
152 virtual void loadData(
153 const WebData&, const WebString& mimeType, const WebString& textEncoding,
154 const WebURL& baseURL, const WebURL& unreachableURL, bool replace) OVERRIDE;
155 virtual void loadHTMLString(
156 const WebData& html, const WebURL& baseURL, const WebURL& unreachableURL,
157 bool replace) OVERRIDE;
158 virtual bool isLoading() const OVERRIDE;
159 virtual void stopLoading() OVERRIDE;
160 virtual WebDataSource* provisionalDataSource() const OVERRIDE;
161 virtual WebDataSource* dataSource() const OVERRIDE;
162 virtual WebHistoryItem previousHistoryItem() const OVERRIDE;
163 virtual WebHistoryItem currentHistoryItem() const OVERRIDE;
164 virtual void enableViewSourceMode(bool enable) OVERRIDE;
165 virtual bool isViewSourceModeEnabled() const OVERRIDE;
166 virtual void setReferrerForRequest(WebURLRequest&, const WebURL& referrer) OVERRIDE;
167 virtual void dispatchWillSendRequest(WebURLRequest&) OVERRIDE;
168 virtual WebURLLoader* createAssociatedURLLoader(const WebURLLoaderOptions&) OVERRIDE;
169 virtual unsigned unloadListenerCount() const OVERRIDE;
170 virtual void replaceSelection(const WebString&) OVERRIDE;
171 virtual void insertText(const WebString&) OVERRIDE;
172 virtual void setMarkedText(const WebString&, unsigned location, unsigned length) OVERRIDE;
173 virtual void unmarkText() OVERRIDE;
174 virtual bool hasMarkedText() const OVERRIDE;
175 virtual WebRange markedRange() const OVERRIDE;
176 virtual bool firstRectForCharacterRange(unsigned location, unsigned length, WebRect&) const OVERRIDE;
177 virtual size_t characterIndexForPoint(const WebPoint&) const OVERRIDE;
178 virtual bool executeCommand(const WebString&, const WebNode& = WebNode()) OVERRIDE;
179 virtual bool executeCommand(const WebString&, const WebString& value, const WebNode& = WebNode()) OVERRIDE;
180 virtual bool isCommandEnabled(const WebString&) const OVERRIDE;
181 virtual void enableContinuousSpellChecking(bool) OVERRIDE;
182 virtual bool isContinuousSpellCheckingEnabled() const OVERRIDE;
183 virtual void requestTextChecking(const WebElement&) OVERRIDE;
184 virtual void replaceMisspelledRange(const WebString&) OVERRIDE;
185 virtual void removeSpellingMarkers() OVERRIDE;
186 virtual bool hasSelection() const OVERRIDE;
187 virtual WebRange selectionRange() const OVERRIDE;
188 virtual WebString selectionAsText() const OVERRIDE;
189 virtual WebString selectionAsMarkup() const OVERRIDE;
190 virtual bool selectWordAroundCaret() OVERRIDE;
191 virtual void selectRange(const WebPoint& base, const WebPoint& extent) OVERRIDE;
192 virtual void selectRange(const WebRange&) OVERRIDE;
193 virtual void moveRangeSelection(const WebPoint& base, const WebPoint& extent) OVERRIDE;
194 virtual void moveCaretSelection(const WebPoint&) OVERRIDE;
195 virtual void setCaretVisible(bool) OVERRIDE;
196 virtual int printBegin(const WebPrintParams&, const WebNode& constrainToNode) OVERRIDE;
197 virtual float printPage(int pageToPrint, WebCanvas*) OVERRIDE;
198 virtual float getPrintPageShrink(int page) OVERRIDE;
199 virtual void printEnd() OVERRIDE;
200 virtual bool isPrintScalingDisabledForPlugin(const WebNode&) OVERRIDE;
201 virtual bool hasCustomPageSizeStyle(int pageIndex) OVERRIDE;
202 virtual bool isPageBoxVisible(int pageIndex) OVERRIDE;
203 virtual void pageSizeAndMarginsInPixels(int pageIndex,
208 int& marginLeft) OVERRIDE;
209 virtual WebString pageProperty(const WebString& propertyName, int pageIndex) OVERRIDE;
210 virtual void printPagesWithBoundaries(WebCanvas*, const WebSize&) OVERRIDE;
212 int identifier, const WebString& searchText, const WebFindOptions&,
213 bool wrapWithinFrame, WebRect* selectionRect) OVERRIDE;
214 virtual void stopFinding(bool clearSelection) OVERRIDE;
215 virtual void scopeStringMatches(
216 int identifier, const WebString& searchText, const WebFindOptions&,
217 bool reset) OVERRIDE;
218 virtual void cancelPendingScopingEffort() OVERRIDE;
219 virtual void increaseMatchCount(int count, int identifier) OVERRIDE;
220 virtual void resetMatchCount() OVERRIDE;
221 virtual int findMatchMarkersVersion() const OVERRIDE;
222 virtual WebFloatRect activeFindMatchRect() OVERRIDE;
223 virtual void findMatchRects(WebVector<WebFloatRect>&) OVERRIDE;
224 virtual int selectNearestFindMatch(const WebFloatPoint&, WebRect* selectionRect) OVERRIDE;
226 virtual void sendOrientationChangeEvent(int orientation) OVERRIDE;
228 virtual void dispatchMessageEventWithOriginCheck(
229 const WebSecurityOrigin& intendedTargetOrigin,
230 const WebDOMEvent&) OVERRIDE;
232 virtual WebString contentAsText(size_t maxChars) const OVERRIDE;
233 virtual WebString contentAsMarkup() const OVERRIDE;
234 virtual WebString renderTreeAsText(RenderAsTextControls toShow = RenderAsTextNormal) const OVERRIDE;
235 virtual WebString markerTextForListItem(const WebElement&) const OVERRIDE;
236 virtual WebRect selectionBoundsRect() const OVERRIDE;
238 virtual bool selectionStartHasSpellingMarkerFor(int from, int length) const OVERRIDE;
239 virtual WebString layerTreeAsText(bool showDebugInfo = false) const OVERRIDE;
241 void willDetachParent();
243 static WebFrameImpl* create(WebFrameClient*);
244 // FIXME: Move the embedderIdentifier concept fully to the embedder and
245 // remove this factory method.
246 static WebFrameImpl* create(WebFrameClient*, long long embedderIdentifier);
247 virtual ~WebFrameImpl();
249 // Called by the WebViewImpl to initialize the main frame for the page.
250 void initializeAsMainFrame(WebCore::Page*);
252 PassRefPtr<WebCore::Frame> createChildFrame(
253 const WebCore::FrameLoadRequest&, WebCore::HTMLFrameOwnerElement*);
255 void didChangeContentsSize(const WebCore::IntSize&);
257 void createFrameView();
259 static WebFrameImpl* fromFrame(WebCore::Frame* frame);
260 static WebFrameImpl* fromFrameOwnerElement(WebCore::Element* element);
262 // If the frame hosts a PluginDocument, this method returns the WebPluginContainerImpl
263 // that hosts the plugin.
264 static WebPluginContainerImpl* pluginContainerFromFrame(WebCore::Frame*);
266 // If the frame hosts a PluginDocument, this method returns the WebPluginContainerImpl
267 // that hosts the plugin. If the provided node is a plugin, then it runs its
268 // WebPluginContainerImpl.
269 static WebPluginContainerImpl* pluginContainerFromNode(WebCore::Frame*, const WebNode&);
271 WebViewImpl* viewImpl() const;
273 WebCore::FrameView* frameView() const { return frame() ? frame()->view() : 0; }
275 // Getters for the impls corresponding to Get(Provisional)DataSource. They
276 // may return 0 if there is no corresponding data source.
277 WebDataSourceImpl* dataSourceImpl() const;
278 WebDataSourceImpl* provisionalDataSourceImpl() const;
280 // Returns which frame has an active match. This function should only be
281 // called on the main frame, as it is the only frame keeping track. Returned
282 // value can be 0 if no frame has an active match.
283 WebFrameImpl* activeMatchFrame() const { return m_currentActiveMatchFrame; }
285 // Returns the active match in the current frame. Could be a null range if
286 // the local frame has no active match.
287 WebCore::Range* activeMatch() const { return m_activeMatch.get(); }
289 // When a Find operation ends, we want to set the selection to what was active
290 // and set focus to the first focusable node we find (starting with the first
291 // node in the matched range and going up the inheritance chain). If we find
292 // nothing to focus we focus the first focusable node in the range. This
293 // allows us to set focus to a link (when we find text inside a link), which
294 // allows us to navigate by pressing Enter after closing the Find box.
295 void setFindEndstateFocusAndSelection();
297 void didFail(const WebCore::ResourceError&, bool wasProvisional);
299 // Sets whether the WebFrameImpl allows its document to be scrolled.
300 // If the parameter is true, allow the document to be scrolled.
301 // Otherwise, disallow scrolling.
302 virtual void setCanHaveScrollbars(bool) OVERRIDE;
304 WebCore::Frame* frame() const { return m_frame.get(); }
305 WebFrameClient* client() const { return m_client; }
306 void setClient(WebFrameClient* client) { m_client = client; }
308 WebPermissionClient* permissionClient() { return m_permissionClient; }
309 SharedWorkerRepositoryClientImpl* sharedWorkerRepositoryClient() const { return m_sharedWorkerRepositoryClient.get(); }
311 void setInputEventsTransformForEmulation(const WebCore::IntSize&, float);
313 static void selectWordAroundPosition(WebCore::Frame*, WebCore::VisiblePosition);
316 class DeferredScopeStringMatches;
317 friend class DeferredScopeStringMatches;
318 friend class FrameLoaderClientImpl;
321 RefPtr<WebCore::Range> m_range;
323 // 1-based index within this frame.
326 // In find-in-page coordinates.
327 // Lazily calculated by updateFindMatchRects.
328 WebCore::FloatRect m_rect;
330 FindMatch(PassRefPtr<WebCore::Range>, int ordinal);
333 // A bit mask specifying area of the frame to invalidate.
334 enum AreaToInvalidate {
336 InvalidateContentArea,
337 InvalidateScrollbar, // Vertical scrollbar only.
338 InvalidateAll // Both content area and the scrollbar.
341 WebFrameImpl(WebFrameClient*, long long frame_identifier);
343 // Sets the local WebCore frame and registers destruction observers.
344 void setWebCoreFrame(PassRefPtr<WebCore::Frame>);
346 // Notifies the delegate about a new selection rect.
347 void reportFindInPageSelection(
348 const WebRect& selectionRect, int activeMatchOrdinal, int identifier);
350 // Clear the find-in-page matches cache forcing rects to be fully
351 // calculated again next time updateFindMatchRects is called.
352 void clearFindMatchesCache();
354 // Check if the activeMatchFrame still exists in the frame tree.
355 bool isActiveMatchFrameValid() const;
357 // Return the index in the find-in-page cache of the match closest to the
358 // provided point in find-in-page coordinates, or -1 in case of error.
359 // The squared distance to the closest match is returned in the distanceSquared parameter.
360 int nearestFindMatch(const WebCore::FloatPoint&, float& distanceSquared);
362 // Select a find-in-page match marker in the current frame using a cache
363 // match index returned by nearestFindMatch. Returns the ordinal of the new
364 // selected match or -1 in case of error. Also provides the bounding box of
365 // the marker in window coordinates if selectionRect is not null.
366 int selectFindMatch(unsigned index, WebRect* selectionRect);
368 // Compute and cache the rects for FindMatches if required.
369 // Rects are automatically invalidated in case of content size changes,
370 // propagating the invalidation to child frames.
371 void updateFindMatchRects();
373 // Append the find-in-page match rects of the current frame to the provided vector.
374 void appendFindMatchRects(Vector<WebFloatRect>& frameRects);
376 // Invalidates a certain area within the frame.
377 void invalidateArea(AreaToInvalidate);
379 // Add a WebKit TextMatch-highlight marker to nodes in a range.
380 void addMarker(WebCore::Range*, bool activeMatch);
382 // Sets the markers within a range as active or inactive.
383 void setMarkerActive(WebCore::Range*, bool active);
385 // Returns the ordinal of the first match in the frame specified. This
386 // function enumerates the frames, starting with the main frame and up to (but
387 // not including) the frame passed in as a parameter and counts how many
388 // matches have been found.
389 int ordinalOfFirstMatchForFrame(WebFrameImpl*) const;
391 // Determines whether the scoping effort is required for a particular frame.
392 // It is not necessary if the frame is invisible, for example, or if this
393 // is a repeat search that already returned nothing last time the same prefix
395 bool shouldScopeMatches(const WTF::String& searchText);
397 // Removes the current frame from the global scoping effort and triggers any
398 // updates if appropriate. This method does not mark the scoping operation
400 void flushCurrentScopingEffort(int identifier);
402 // Finishes the current scoping effort and triggers any updates if appropriate.
403 void finishCurrentScopingEffort(int identifier);
405 // Queue up a deferred call to scopeStringMatches.
406 void scopeStringMatchesSoon(
407 int identifier, const WebString& searchText, const WebFindOptions&,
410 // Called by a DeferredScopeStringMatches instance.
411 void callScopeStringMatches(
412 DeferredScopeStringMatches*, int identifier, const WebString& searchText,
413 const WebFindOptions&, bool reset);
415 // Determines whether to invalidate the content area and scrollbar.
416 void invalidateIfNecessary();
418 void loadJavaScriptURL(const WebCore::KURL&);
420 // Returns a hit-tested VisiblePosition for the given point
421 WebCore::VisiblePosition visiblePositionForWindowPoint(const WebPoint&);
423 class WebFrameInit : public WebCore::FrameInit {
425 static PassRefPtr<WebFrameInit> create(WebFrameImpl* webFrameImpl, int64_t frameID)
427 return adoptRef(new WebFrameInit(webFrameImpl, frameID));
431 WebFrameInit(WebFrameImpl* webFrameImpl, int64_t frameID)
432 : WebCore::FrameInit(frameID)
433 , m_frameLoaderClientImpl(webFrameImpl)
435 setFrameLoaderClient(&m_frameLoaderClientImpl);
438 FrameLoaderClientImpl m_frameLoaderClientImpl;
440 RefPtr<WebFrameInit> m_frameInit;
442 // The embedder retains a reference to the WebCore Frame while it is active in the DOM. This
443 // reference is released when the frame is removed from the DOM or the entire page is closed.
444 RefPtr<WebCore::Frame> m_frame;
445 WebFrameImpl* m_parent;
446 WebFrameImpl* m_previousSibling;
447 WebFrameImpl* m_nextSibling;
448 WebFrameImpl* m_firstChild;
449 WebFrameImpl* m_lastChild;
451 // Indicate whether the current Frame is local or remote. Remote frames are
452 // rendered in a different process from their parent frames.
455 WebFrameClient* m_client;
456 WebPermissionClient* m_permissionClient;
457 OwnPtr<SharedWorkerRepositoryClientImpl> m_sharedWorkerRepositoryClient;
459 // A way for the main frame to keep track of which frame has an active
460 // match. Should be 0 for all other frames.
461 WebFrameImpl* m_currentActiveMatchFrame;
463 // The range of the active match for the current frame.
464 RefPtr<WebCore::Range> m_activeMatch;
466 // The index of the active match for the current frame.
467 int m_activeMatchIndexInCurrentFrame;
469 // This flag is used by the scoping effort to determine if we need to figure
470 // out which rectangle is the active match. Once we find the active
471 // rectangle we clear this flag.
472 bool m_locatingActiveRect;
474 // The scoping effort can time out and we need to keep track of where we
475 // ended our last search so we can continue from where we left of.
476 RefPtr<WebCore::Range> m_resumeScopingFromRange;
478 // Keeps track of the last string this frame searched for. This is used for
479 // short-circuiting searches in the following scenarios: When a frame has
480 // been searched and returned 0 results, we don't need to search that frame
481 // again if the user is just adding to the search (making it more specific).
482 WTF::String m_lastSearchString;
484 // Keeps track of how many matches this frame has found so far, so that we
485 // don't loose count between scoping efforts, and is also used (in conjunction
486 // with m_lastSearchString) to figure out if we need to search the frame again.
487 int m_lastMatchCount;
489 // This variable keeps a cumulative total of matches found so far for ALL the
490 // frames on the page, and is only incremented by calling IncreaseMatchCount
491 // (on the main frame only). It should be -1 for all other frames.
492 int m_totalMatchCount;
494 // This variable keeps a cumulative total of how many frames are currently
495 // scoping, and is incremented/decremented on the main frame only.
496 // It should be -1 for all other frames.
497 int m_framesScopingCount;
499 // Identifier of the latest find-in-page request. Required to be stored in
500 // the frame in order to reply if required in case the frame is detached.
501 int m_findRequestIdentifier;
503 // Keeps track of whether there is an scoping effort ongoing in the frame.
504 bool m_scopingInProgress;
506 // Keeps track of whether the last find request completed its scoping effort
507 // without finding any matches in this frame.
508 bool m_lastFindRequestCompletedWithNoMatches;
510 // Keeps track of when the scoping effort should next invalidate the scrollbar
511 // and the frame area.
512 int m_nextInvalidateAfter;
514 // A list of all of the pending calls to scopeStringMatches.
515 Vector<DeferredScopeStringMatches*> m_deferredScopingWork;
517 // Version number incremented on the main frame only whenever the document
518 // find-in-page match markers change. It should be 0 for all other frames.
519 int m_findMatchMarkersVersion;
521 // Local cache of the find match markers currently displayed for this frame.
522 Vector<FindMatch> m_findMatchesCache;
524 // Determines if the rects in the find-in-page matches cache of this frame
525 // are invalid and should be recomputed.
526 bool m_findMatchRectsAreValid;
528 // Contents size when find-in-page match rects were last computed for this
530 WebCore::IntSize m_contentsSizeForCurrentFindMatchRects;
532 // Valid between calls to BeginPrint() and EndPrint(). Containts the print
533 // information. Is used by PrintPage().
534 OwnPtr<ChromePrintContext> m_printContext;
536 // Stores the additional input events offset and scale when device metrics emulation is enabled.
537 WebCore::IntSize m_inputEventsOffsetForEmulation;
538 float m_inputEventsScaleFactorForEmulation;
541 DEFINE_TYPE_CASTS(WebFrameImpl, WebFrame, frame, true, true);