Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(6)

Side by Side Diff: Source/web/WebFrameImpl.h

Issue 69923006: Introduce TextFinder class. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@upload-review-4
Patch Set: Rebase Created 6 years, 11 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « Source/web/TextFinder.cpp ('k') | Source/web/WebFrameImpl.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 /* 1 /*
2 * Copyright (C) 2009 Google Inc. All rights reserved. 2 * Copyright (C) 2009 Google Inc. All rights reserved.
3 * 3 *
4 * Redistribution and use in source and binary forms, with or without 4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are 5 * modification, are permitted provided that the following conditions are
6 * met: 6 * met:
7 * 7 *
8 * * Redistributions of source code must retain the above copyright 8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer. 9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above 10 * * Redistributions in binary form must reproduce the above
(...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after
51 class Node; 51 class Node;
52 class Range; 52 class Range;
53 class SubstituteData; 53 class SubstituteData;
54 struct FrameLoadRequest; 54 struct FrameLoadRequest;
55 struct WindowFeatures; 55 struct WindowFeatures;
56 } 56 }
57 57
58 namespace blink { 58 namespace blink {
59 class ChromePrintContext; 59 class ChromePrintContext;
60 class SharedWorkerRepositoryClientImpl; 60 class SharedWorkerRepositoryClientImpl;
61 class TextFinder;
61 class WebDataSourceImpl; 62 class WebDataSourceImpl;
62 class WebInputElement; 63 class WebInputElement;
63 class WebFrameClient; 64 class WebFrameClient;
64 class WebPerformance; 65 class WebPerformance;
65 class WebPluginContainerImpl; 66 class WebPluginContainerImpl;
66 class WebView; 67 class WebView;
67 class WebViewImpl; 68 class WebViewImpl;
68 struct WebPrintParams; 69 struct WebPrintParams;
69 70
70 template <typename T> class WebVector; 71 template <typename T> class WebVector;
(...skipping 199 matching lines...) Expand 10 before | Expand all | Expand 10 after
270 WebCore::FrameView* frameView() const { return frame() ? frame()->view() : 0 ; } 271 WebCore::FrameView* frameView() const { return frame() ? frame()->view() : 0 ; }
271 272
272 // Getters for the impls corresponding to Get(Provisional)DataSource. They 273 // Getters for the impls corresponding to Get(Provisional)DataSource. They
273 // may return 0 if there is no corresponding data source. 274 // may return 0 if there is no corresponding data source.
274 WebDataSourceImpl* dataSourceImpl() const; 275 WebDataSourceImpl* dataSourceImpl() const;
275 WebDataSourceImpl* provisionalDataSourceImpl() const; 276 WebDataSourceImpl* provisionalDataSourceImpl() const;
276 277
277 // Returns which frame has an active match. This function should only be 278 // Returns which frame has an active match. This function should only be
278 // called on the main frame, as it is the only frame keeping track. Returned 279 // called on the main frame, as it is the only frame keeping track. Returned
279 // value can be 0 if no frame has an active match. 280 // value can be 0 if no frame has an active match.
280 WebFrameImpl* activeMatchFrame() const { return m_currentActiveMatchFrame; } 281 WebFrameImpl* activeMatchFrame() const;
281 282
282 // Returns the active match in the current frame. Could be a null range if 283 // Returns the active match in the current frame. Could be a null range if
283 // the local frame has no active match. 284 // the local frame has no active match.
284 WebCore::Range* activeMatch() const { return m_activeMatch.get(); } 285 WebCore::Range* activeMatch() const;
285 286
286 // When a Find operation ends, we want to set the selection to what was acti ve 287 // When a Find operation ends, we want to set the selection to what was acti ve
287 // and set focus to the first focusable node we find (starting with the firs t 288 // and set focus to the first focusable node we find (starting with the firs t
288 // node in the matched range and going up the inheritance chain). If we find 289 // node in the matched range and going up the inheritance chain). If we find
289 // nothing to focus we focus the first focusable node in the range. This 290 // nothing to focus we focus the first focusable node in the range. This
290 // allows us to set focus to a link (when we find text inside a link), which 291 // allows us to set focus to a link (when we find text inside a link), which
291 // allows us to navigate by pressing Enter after closing the Find box. 292 // allows us to navigate by pressing Enter after closing the Find box.
292 void setFindEndstateFocusAndSelection(); 293 void setFindEndstateFocusAndSelection();
293 294
294 void didFail(const WebCore::ResourceError&, bool wasProvisional); 295 void didFail(const WebCore::ResourceError&, bool wasProvisional);
295 296
296 // Sets whether the WebFrameImpl allows its document to be scrolled. 297 // Sets whether the WebFrameImpl allows its document to be scrolled.
297 // If the parameter is true, allow the document to be scrolled. 298 // If the parameter is true, allow the document to be scrolled.
298 // Otherwise, disallow scrolling. 299 // Otherwise, disallow scrolling.
299 void setCanHaveScrollbars(bool); 300 void setCanHaveScrollbars(bool);
300 301
301 WebCore::Frame* frame() const { return m_frame.get(); } 302 WebCore::Frame* frame() const { return m_frame.get(); }
302 WebFrameClient* client() const { return m_client; } 303 WebFrameClient* client() const { return m_client; }
303 void setClient(WebFrameClient* client) { m_client = client; } 304 void setClient(WebFrameClient* client) { m_client = client; }
304 305
305 WebPermissionClient* permissionClient() { return m_permissionClient; } 306 WebPermissionClient* permissionClient() { return m_permissionClient; }
306 SharedWorkerRepositoryClientImpl* sharedWorkerRepositoryClient() const { ret urn m_sharedWorkerRepositoryClient.get(); } 307 SharedWorkerRepositoryClientImpl* sharedWorkerRepositoryClient() const { ret urn m_sharedWorkerRepositoryClient.get(); }
307 308
308 void setInputEventsTransformForEmulation(const WebCore::IntSize&, float); 309 void setInputEventsTransformForEmulation(const WebCore::IntSize&, float);
309 310
310 static void selectWordAroundPosition(WebCore::Frame*, WebCore::VisiblePositi on); 311 static void selectWordAroundPosition(WebCore::Frame*, WebCore::VisiblePositi on);
311 312
313 // Returns the text finder object if it already exists.
314 // Otherwise creates it and then returns.
315 TextFinder& getOrCreateTextFinder();
316
312 private: 317 private:
313 class DeferredScopeStringMatches;
314 friend class DeferredScopeStringMatches;
315 friend class FrameLoaderClientImpl; 318 friend class FrameLoaderClientImpl;
316 319
317 struct FindMatch {
318 RefPtr<WebCore::Range> m_range;
319
320 // 1-based index within this frame.
321 int m_ordinal;
322
323 // In find-in-page coordinates.
324 // Lazily calculated by updateFindMatchRects.
325 WebCore::FloatRect m_rect;
326
327 FindMatch(PassRefPtr<WebCore::Range>, int ordinal);
328 };
329
330 // A bit mask specifying area of the frame to invalidate.
331 enum AreaToInvalidate {
332 InvalidateNothing,
333 InvalidateContentArea,
334 InvalidateScrollbar, // Vertical scrollbar only.
335 InvalidateAll // Both content area and the scrollbar.
336 };
337
338 WebFrameImpl(WebFrameClient*, long long frame_identifier); 320 WebFrameImpl(WebFrameClient*, long long frame_identifier);
339 321
340 // Sets the local WebCore frame and registers destruction observers. 322 // Sets the local WebCore frame and registers destruction observers.
341 void setWebCoreFrame(PassRefPtr<WebCore::Frame>); 323 void setWebCoreFrame(PassRefPtr<WebCore::Frame>);
342 324
343 // Notifies the delegate about a new selection rect.
344 void reportFindInPageSelection(
345 const WebRect& selectionRect, int activeMatchOrdinal, int identifier);
346
347 // Clear the find-in-page matches cache forcing rects to be fully
348 // calculated again next time updateFindMatchRects is called.
349 void clearFindMatchesCache();
350
351 // Check if the activeMatchFrame still exists in the frame tree.
352 bool isActiveMatchFrameValid() const;
353
354 // Return the index in the find-in-page cache of the match closest to the
355 // provided point in find-in-page coordinates, or -1 in case of error.
356 // The squared distance to the closest match is returned in the distanceSqua red parameter.
357 int nearestFindMatch(const WebCore::FloatPoint&, float& distanceSquared);
358
359 // Select a find-in-page match marker in the current frame using a cache
360 // match index returned by nearestFindMatch. Returns the ordinal of the new
361 // selected match or -1 in case of error. Also provides the bounding box of
362 // the marker in window coordinates if selectionRect is not null.
363 int selectFindMatch(unsigned index, WebRect* selectionRect);
364
365 // Compute and cache the rects for FindMatches if required.
366 // Rects are automatically invalidated in case of content size changes,
367 // propagating the invalidation to child frames.
368 void updateFindMatchRects();
369
370 // Append the find-in-page match rects of the current frame to the provided vector.
371 void appendFindMatchRects(Vector<WebFloatRect>& frameRects);
372
373 // Invalidates a certain area within the frame.
374 void invalidateArea(AreaToInvalidate);
375
376 // Add a WebKit TextMatch-highlight marker to nodes in a range.
377 void addMarker(WebCore::Range*, bool activeMatch);
378
379 // Sets the markers within a range as active or inactive.
380 void setMarkerActive(WebCore::Range*, bool active);
381
382 // Returns the ordinal of the first match in the frame specified. This
383 // function enumerates the frames, starting with the main frame and up to (b ut
384 // not including) the frame passed in as a parameter and counts how many
385 // matches have been found.
386 int ordinalOfFirstMatchForFrame(WebFrameImpl*) const;
387
388 // Determines whether the scoping effort is required for a particular frame.
389 // It is not necessary if the frame is invisible, for example, or if this
390 // is a repeat search that already returned nothing last time the same prefi x
391 // was searched.
392 bool shouldScopeMatches(const WTF::String& searchText);
393
394 // Removes the current frame from the global scoping effort and triggers any
395 // updates if appropriate. This method does not mark the scoping operation
396 // as finished.
397 void flushCurrentScopingEffort(int identifier);
398
399 // Finishes the current scoping effort and triggers any updates if appropria te.
400 void finishCurrentScopingEffort(int identifier);
401
402 // Queue up a deferred call to scopeStringMatches.
403 void scopeStringMatchesSoon(
404 int identifier, const WebString& searchText, const WebFindOptions&,
405 bool reset);
406
407 // Called by a DeferredScopeStringMatches instance.
408 void callScopeStringMatches(
409 DeferredScopeStringMatches*, int identifier, const WebString& searchText ,
410 const WebFindOptions&, bool reset);
411
412 // Determines whether to invalidate the content area and scrollbar.
413 void invalidateIfNecessary();
414
415 void loadJavaScriptURL(const WebCore::KURL&); 325 void loadJavaScriptURL(const WebCore::KURL&);
416 326
417 // Returns a hit-tested VisiblePosition for the given point 327 // Returns a hit-tested VisiblePosition for the given point
418 WebCore::VisiblePosition visiblePositionForWindowPoint(const WebPoint&); 328 WebCore::VisiblePosition visiblePositionForWindowPoint(const WebPoint&);
419 329
420 class WebFrameInit : public WebCore::FrameInit { 330 class WebFrameInit : public WebCore::FrameInit {
421 public: 331 public:
422 static PassRefPtr<WebFrameInit> create(WebFrameImpl* webFrameImpl, int64 _t frameID) 332 static PassRefPtr<WebFrameInit> create(WebFrameImpl* webFrameImpl, int64 _t frameID)
423 { 333 {
424 return adoptRef(new WebFrameInit(webFrameImpl, frameID)); 334 return adoptRef(new WebFrameInit(webFrameImpl, frameID));
(...skipping 12 matching lines...) Expand all
437 RefPtr<WebFrameInit> m_frameInit; 347 RefPtr<WebFrameInit> m_frameInit;
438 348
439 // The embedder retains a reference to the WebCore Frame while it is active in the DOM. This 349 // The embedder retains a reference to the WebCore Frame while it is active in the DOM. This
440 // reference is released when the frame is removed from the DOM or the entir e page is closed. 350 // reference is released when the frame is removed from the DOM or the entir e page is closed.
441 RefPtr<WebCore::Frame> m_frame; 351 RefPtr<WebCore::Frame> m_frame;
442 352
443 WebFrameClient* m_client; 353 WebFrameClient* m_client;
444 WebPermissionClient* m_permissionClient; 354 WebPermissionClient* m_permissionClient;
445 OwnPtr<SharedWorkerRepositoryClientImpl> m_sharedWorkerRepositoryClient; 355 OwnPtr<SharedWorkerRepositoryClientImpl> m_sharedWorkerRepositoryClient;
446 356
447 // A way for the main frame to keep track of which frame has an active 357 // Will be initialized after first call to find() or scopeStringMatches().
448 // match. Should be 0 for all other frames. 358 OwnPtr<TextFinder> m_textFinder;
449 WebFrameImpl* m_currentActiveMatchFrame;
450
451 // The range of the active match for the current frame.
452 RefPtr<WebCore::Range> m_activeMatch;
453
454 // The index of the active match for the current frame.
455 int m_activeMatchIndexInCurrentFrame;
456
457 // This flag is used by the scoping effort to determine if we need to figure
458 // out which rectangle is the active match. Once we find the active
459 // rectangle we clear this flag.
460 bool m_locatingActiveRect;
461
462 // The scoping effort can time out and we need to keep track of where we
463 // ended our last search so we can continue from where we left of.
464 RefPtr<WebCore::Range> m_resumeScopingFromRange;
465
466 // Keeps track of the last string this frame searched for. This is used for
467 // short-circuiting searches in the following scenarios: When a frame has
468 // been searched and returned 0 results, we don't need to search that frame
469 // again if the user is just adding to the search (making it more specific).
470 WTF::String m_lastSearchString;
471
472 // Keeps track of how many matches this frame has found so far, so that we
473 // don't loose count between scoping efforts, and is also used (in conjuncti on
474 // with m_lastSearchString) to figure out if we need to search the frame aga in.
475 int m_lastMatchCount;
476
477 // This variable keeps a cumulative total of matches found so far for ALL th e
478 // frames on the page, and is only incremented by calling IncreaseMatchCount
479 // (on the main frame only). It should be -1 for all other frames.
480 int m_totalMatchCount;
481
482 // This variable keeps a cumulative total of how many frames are currently
483 // scoping, and is incremented/decremented on the main frame only.
484 // It should be -1 for all other frames.
485 int m_framesScopingCount;
486
487 // Identifier of the latest find-in-page request. Required to be stored in
488 // the frame in order to reply if required in case the frame is detached.
489 int m_findRequestIdentifier;
490
491 // Keeps track of whether there is an scoping effort ongoing in the frame.
492 bool m_scopingInProgress;
493
494 // Keeps track of whether the last find request completed its scoping effort
495 // without finding any matches in this frame.
496 bool m_lastFindRequestCompletedWithNoMatches;
497
498 // Keeps track of when the scoping effort should next invalidate the scrollb ar
499 // and the frame area.
500 int m_nextInvalidateAfter;
501
502 // A list of all of the pending calls to scopeStringMatches.
503 Vector<DeferredScopeStringMatches*> m_deferredScopingWork;
504
505 // Version number incremented on the main frame only whenever the document
506 // find-in-page match markers change. It should be 0 for all other frames.
507 int m_findMatchMarkersVersion;
508
509 // Local cache of the find match markers currently displayed for this frame.
510 Vector<FindMatch> m_findMatchesCache;
511
512 // Determines if the rects in the find-in-page matches cache of this frame
513 // are invalid and should be recomputed.
514 bool m_findMatchRectsAreValid;
515
516 // Contents size when find-in-page match rects were last computed for this
517 // frame's cache.
518 WebCore::IntSize m_contentsSizeForCurrentFindMatchRects;
519 359
520 // Valid between calls to BeginPrint() and EndPrint(). Containts the print 360 // Valid between calls to BeginPrint() and EndPrint(). Containts the print
521 // information. Is used by PrintPage(). 361 // information. Is used by PrintPage().
522 OwnPtr<ChromePrintContext> m_printContext; 362 OwnPtr<ChromePrintContext> m_printContext;
523 363
524 // Stores the additional input events offset and scale when device metrics e mulation is enabled. 364 // Stores the additional input events offset and scale when device metrics e mulation is enabled.
525 WebCore::IntSize m_inputEventsOffsetForEmulation; 365 WebCore::IntSize m_inputEventsOffsetForEmulation;
526 float m_inputEventsScaleFactorForEmulation; 366 float m_inputEventsScaleFactorForEmulation;
527 }; 367 };
528 368
529 DEFINE_TYPE_CASTS(WebFrameImpl, WebFrame, frame, true, true); 369 DEFINE_TYPE_CASTS(WebFrameImpl, WebFrame, frame, true, true);
530 370
531 } // namespace blink 371 } // namespace blink
532 372
533 #endif 373 #endif
OLDNEW
« no previous file with comments | « Source/web/TextFinder.cpp ('k') | Source/web/WebFrameImpl.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698