WKView.mm revision 2fc2651226baac27029e38c9d6ef883fa32084db 
1/*
2 * Copyright (C) 2010 Apple 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
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#import "config.h"
27#import "WKView.h"
28
29#import "ChunkedUpdateDrawingAreaProxy.h"
30#import "DataReference.h"
31#import "DrawingAreaProxyImpl.h"
32#import "FindIndicator.h"
33#import "FindIndicatorWindow.h"
34#import "LayerBackedDrawingAreaProxy.h"
35#import "LayerTreeContext.h"
36#import "Logging.h"
37#import "NativeWebKeyboardEvent.h"
38#import "PDFViewController.h"
39#import "PageClientImpl.h"
40#import "PasteboardTypes.h"
41#import "Region.h"
42#import "RunLoop.h"
43#import "TextChecker.h"
44#import "TextCheckerState.h"
45#import "WKAPICast.h"
46#import "WKPrintingView.h"
47#import "WKStringCF.h"
48#import "WKTextInputWindowController.h"
49#import "WKViewInternal.h"
50#import "WKViewPrivate.h"
51#import "WebContext.h"
52#import "WebEventFactory.h"
53#import "WebPage.h"
54#import "WebPageProxy.h"
55#import "WebProcessManager.h"
56#import "WebProcessProxy.h"
57#import "WebSystemInterface.h"
58#import <QuartzCore/QuartzCore.h>
59#import <WebCore/ColorMac.h>
60#import <WebCore/DragController.h>
61#import <WebCore/DragData.h>
62#import <WebCore/FloatRect.h>
63#import <WebCore/IntRect.h>
64#import <WebCore/KeyboardEvent.h>
65#import <WebCore/PlatformMouseEvent.h>
66#import <WebCore/PlatformScreen.h>
67#import <WebKitSystemInterface.h>
68#import <wtf/RefPtr.h>
69#import <wtf/RetainPtr.h>
70
71// FIXME (WebKit2) <rdar://problem/8728860> WebKit2 needs to be localized
72#define UI_STRING(__str, __desc) [NSString stringWithUTF8String:__str]
73
74@interface NSApplication (Details)
75- (void)speakString:(NSString *)string;
76@end
77
78@interface NSWindow (Details)
79- (NSRect)_growBoxRect;
80- (void)_setShowOpaqueGrowBoxForOwner:(id)owner;
81- (BOOL)_updateGrowBoxForWindowFrameChange;
82@end
83
84extern "C" {
85    // Need to declare this attribute name because AppKit exports it but does not make it available in API or SPI headers.
86    // <rdar://problem/8631468> tracks the request to make it available. This code should be removed when the bug is closed.
87    extern NSString *NSTextInputReplacementRangeAttributeName;
88}
89
90using namespace WebKit;
91using namespace WebCore;
92
93namespace WebKit {
94
95typedef id <NSValidatedUserInterfaceItem> ValidationItem;
96typedef Vector<RetainPtr<ValidationItem> > ValidationVector;
97typedef HashMap<String, ValidationVector> ValidationMap;
98
99}
100
101@interface WKViewData : NSObject {
102@public
103    OwnPtr<PageClientImpl> _pageClient;
104    RefPtr<WebPageProxy> _page;
105
106    // For ToolTips.
107    NSToolTipTag _lastToolTipTag;
108    id _trackingRectOwner;
109    void* _trackingRectUserData;
110
111    RetainPtr<NSView> _layerHostingView;
112
113    // FIXME: Remove _oldLayerHostingView.
114#if USE(ACCELERATED_COMPOSITING)
115    NSView *_oldLayerHostingView;
116#endif
117
118    RetainPtr<id> _remoteAccessibilityChild;
119
120    // For asynchronous validation.
121    ValidationMap _validationMap;
122
123    OwnPtr<PDFViewController> _pdfViewController;
124
125    OwnPtr<FindIndicatorWindow> _findIndicatorWindow;
126    // We keep here the event when resending it to
127    // the application to distinguish the case of a new event from one
128    // that has been already sent to WebCore.
129    NSEvent *_keyDownEventBeingResent;
130    Vector<KeypressCommand> _commandsList;
131
132    NSSize _resizeScrollOffset;
133
134    // The identifier of the plug-in we want to send complex text input to, or 0 if there is none.
135    uint64_t _pluginComplexTextInputIdentifier;
136
137    Vector<CompositionUnderline> _underlines;
138    unsigned _selectionStart;
139    unsigned _selectionEnd;
140
141    bool _inBecomeFirstResponder;
142    bool _inResignFirstResponder;
143    NSEvent *_mouseDownEvent;
144    BOOL _ignoringMouseDraggedEvents;
145    BOOL _dragHasStarted;
146
147#if ENABLE(GESTURE_EVENTS)
148    id _endGestureMonitor;
149#endif
150}
151@end
152
153@implementation WKViewData
154@end
155
156@interface NSObject (NSTextInputContextDetails)
157- (BOOL)wantsToHandleMouseEvents;
158- (BOOL)handleMouseEvent:(NSEvent *)event;
159@end
160
161@implementation WKView
162
163// FIXME: Remove this once we no longer want to be able to go back to the old drawing area.
164static bool useNewDrawingArea()
165{
166    return true;
167}
168
169- (id)initWithFrame:(NSRect)frame
170{
171    return [self initWithFrame:frame contextRef:toAPI(WebContext::sharedProcessContext())];
172}
173
174- (id)initWithFrame:(NSRect)frame contextRef:(WKContextRef)contextRef
175{
176    return [self initWithFrame:frame contextRef:contextRef pageGroupRef:nil];
177}
178
179- (void)_registerDraggedTypes
180{
181    NSMutableSet *types = [[NSMutableSet alloc] initWithArray:PasteboardTypes::forEditing()];
182    [types addObjectsFromArray:PasteboardTypes::forURL()];
183    [self registerForDraggedTypes:[types allObjects]];
184    [types release];
185}
186
187- (void)_updateRemoteAccessibilityRegistration:(BOOL)registerProcess
188{
189#if !defined(BUILDING_ON_SNOW_LEOPARD)
190    // When the tree is connected/disconnected, the remote accessibility registration
191    // needs to be updated with the pid of the remote process. If the process is going
192    // away, that information is not present in WebProcess
193    pid_t pid = 0;
194    if (registerProcess && _data->_page->process())
195        pid = _data->_page->process()->processIdentifier();
196    else if (!registerProcess) {
197        pid = WKAXRemoteProcessIdentifier(_data->_remoteAccessibilityChild.get());
198        _data->_remoteAccessibilityChild = nil;
199    }
200    if (pid)
201        WKAXRegisterRemoteProcess(registerProcess, pid);
202#endif
203}
204
205- (id)initWithFrame:(NSRect)frame contextRef:(WKContextRef)contextRef pageGroupRef:(WKPageGroupRef)pageGroupRef
206{
207    self = [super initWithFrame:frame];
208    if (!self)
209        return nil;
210
211    InitWebCoreSystemInterface();
212    RunLoop::initializeMainRunLoop();
213
214    NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:frame
215                                                                options:(NSTrackingMouseMoved | NSTrackingMouseEnteredAndExited | NSTrackingActiveInKeyWindow | NSTrackingInVisibleRect)
216                                                                  owner:self
217                                                               userInfo:nil];
218    [self addTrackingArea:trackingArea];
219    [trackingArea release];
220
221    _data = [[WKViewData alloc] init];
222
223    _data->_pageClient = PageClientImpl::create(self);
224    _data->_page = toImpl(contextRef)->createWebPage(_data->_pageClient.get(), toImpl(pageGroupRef));
225    _data->_page->initializeWebPage();
226    _data->_mouseDownEvent = nil;
227    _data->_ignoringMouseDraggedEvents = NO;
228
229    [self _registerDraggedTypes];
230
231    WebContext::statistics().wkViewCount++;
232
233    return self;
234}
235
236- (void)dealloc
237{
238    _data->_page->close();
239
240    [_data release];
241
242    WebContext::statistics().wkViewCount--;
243
244    [super dealloc];
245}
246
247- (WKPageRef)pageRef
248{
249    return toAPI(_data->_page.get());
250}
251
252- (void)setDrawsBackground:(BOOL)drawsBackground
253{
254    _data->_page->setDrawsBackground(drawsBackground);
255}
256
257- (BOOL)drawsBackground
258{
259    return _data->_page->drawsBackground();
260}
261
262- (void)setDrawsTransparentBackground:(BOOL)drawsTransparentBackground
263{
264    _data->_page->setDrawsTransparentBackground(drawsTransparentBackground);
265}
266
267- (BOOL)drawsTransparentBackground
268{
269    return _data->_page->drawsTransparentBackground();
270}
271
272- (BOOL)acceptsFirstResponder
273{
274    return YES;
275}
276
277- (BOOL)becomeFirstResponder
278{
279    NSSelectionDirection direction = [[self window] keyViewSelectionDirection];
280
281    _data->_inBecomeFirstResponder = true;
282    _data->_page->viewStateDidChange(WebPageProxy::ViewIsFocused);
283    _data->_inBecomeFirstResponder = false;
284
285    if (direction != NSDirectSelection)
286        _data->_page->setInitialFocus(direction == NSSelectingNext);
287
288    return YES;
289}
290
291- (BOOL)resignFirstResponder
292{
293    _data->_inResignFirstResponder = true;
294    _data->_page->viewStateDidChange(WebPageProxy::ViewIsFocused);
295    _data->_inResignFirstResponder = false;
296
297    return YES;
298}
299
300- (void)viewWillStartLiveResize
301{
302    _data->_page->viewWillStartLiveResize();
303}
304
305- (void)viewDidEndLiveResize
306{
307    _data->_page->viewWillEndLiveResize();
308}
309
310- (BOOL)isFlipped
311{
312    return YES;
313}
314
315- (void)setFrame:(NSRect)rect andScrollBy:(NSSize)offset
316{
317    ASSERT(NSEqualSizes(_data->_resizeScrollOffset, NSZeroSize));
318
319    _data->_resizeScrollOffset = offset;
320    [self setFrame:rect];
321}
322
323- (void)setFrameSize:(NSSize)size
324{
325    [super setFrameSize:size];
326
327    if (![self frameSizeUpdatesDisabled])
328        [self _setDrawingAreaSize:size];
329}
330
331- (void)_updateWindowAndViewFrames
332{
333    NSWindow *window = [self window];
334    ASSERT(window);
335
336    NSRect windowFrameInScreenCoordinates = [window frame];
337    NSRect viewFrameInWindowCoordinates = [self convertRect:[self frame] toView:nil];
338    NSPoint accessibilityPosition = [[self accessibilityAttributeValue:NSAccessibilityPositionAttribute] pointValue];
339
340    _data->_page->windowAndViewFramesChanged(enclosingIntRect(windowFrameInScreenCoordinates), enclosingIntRect(viewFrameInWindowCoordinates), IntPoint(accessibilityPosition));
341}
342
343- (void)renewGState
344{
345    // Hide the find indicator.
346    _data->_findIndicatorWindow = nullptr;
347
348    // Update the view frame.
349    if ([self window])
350        [self _updateWindowAndViewFrames];
351
352    [super renewGState];
353}
354
355typedef HashMap<SEL, String> SelectorNameMap;
356
357// Map selectors into Editor command names.
358// This is not needed for any selectors that have the same name as the Editor command.
359static const SelectorNameMap* createSelectorExceptionMap()
360{
361    SelectorNameMap* map = new HashMap<SEL, String>;
362
363    map->add(@selector(insertNewlineIgnoringFieldEditor:), "InsertNewline");
364    map->add(@selector(insertParagraphSeparator:), "InsertNewline");
365    map->add(@selector(insertTabIgnoringFieldEditor:), "InsertTab");
366    map->add(@selector(pageDown:), "MovePageDown");
367    map->add(@selector(pageDownAndModifySelection:), "MovePageDownAndModifySelection");
368    map->add(@selector(pageUp:), "MovePageUp");
369    map->add(@selector(pageUpAndModifySelection:), "MovePageUpAndModifySelection");
370    map->add(@selector(scrollPageDown:), "ScrollPageForward");
371    map->add(@selector(scrollPageUp:), "ScrollPageBackward");
372
373    return map;
374}
375
376static String commandNameForSelector(SEL selector)
377{
378    // Check the exception map first.
379    static const SelectorNameMap* exceptionMap = createSelectorExceptionMap();
380    SelectorNameMap::const_iterator it = exceptionMap->find(selector);
381    if (it != exceptionMap->end())
382        return it->second;
383
384    // Remove the trailing colon.
385    // No need to capitalize the command name since Editor command names are
386    // not case sensitive.
387    const char* selectorName = sel_getName(selector);
388    size_t selectorNameLength = strlen(selectorName);
389    if (selectorNameLength < 2 || selectorName[selectorNameLength - 1] != ':')
390        return String();
391    return String(selectorName, selectorNameLength - 1);
392}
393
394// Editing commands
395
396#define WEBCORE_COMMAND(command) - (void)command:(id)sender { _data->_page->executeEditCommand(commandNameForSelector(_cmd)); }
397
398WEBCORE_COMMAND(alignCenter)
399WEBCORE_COMMAND(alignJustified)
400WEBCORE_COMMAND(alignLeft)
401WEBCORE_COMMAND(alignRight)
402WEBCORE_COMMAND(copy)
403WEBCORE_COMMAND(cut)
404WEBCORE_COMMAND(delete)
405WEBCORE_COMMAND(deleteBackward)
406WEBCORE_COMMAND(deleteBackwardByDecomposingPreviousCharacter)
407WEBCORE_COMMAND(deleteForward)
408WEBCORE_COMMAND(deleteToBeginningOfLine)
409WEBCORE_COMMAND(deleteToBeginningOfParagraph)
410WEBCORE_COMMAND(deleteToEndOfLine)
411WEBCORE_COMMAND(deleteToEndOfParagraph)
412WEBCORE_COMMAND(deleteToMark)
413WEBCORE_COMMAND(deleteWordBackward)
414WEBCORE_COMMAND(deleteWordForward)
415WEBCORE_COMMAND(ignoreSpelling)
416WEBCORE_COMMAND(indent)
417WEBCORE_COMMAND(insertBacktab)
418WEBCORE_COMMAND(insertLineBreak)
419WEBCORE_COMMAND(insertNewline)
420WEBCORE_COMMAND(insertNewlineIgnoringFieldEditor)
421WEBCORE_COMMAND(insertParagraphSeparator)
422WEBCORE_COMMAND(insertTab)
423WEBCORE_COMMAND(insertTabIgnoringFieldEditor)
424WEBCORE_COMMAND(makeTextWritingDirectionLeftToRight)
425WEBCORE_COMMAND(makeTextWritingDirectionNatural)
426WEBCORE_COMMAND(makeTextWritingDirectionRightToLeft)
427WEBCORE_COMMAND(moveBackward)
428WEBCORE_COMMAND(moveBackwardAndModifySelection)
429WEBCORE_COMMAND(moveDown)
430WEBCORE_COMMAND(moveDownAndModifySelection)
431WEBCORE_COMMAND(moveForward)
432WEBCORE_COMMAND(moveForwardAndModifySelection)
433WEBCORE_COMMAND(moveLeft)
434WEBCORE_COMMAND(moveLeftAndModifySelection)
435WEBCORE_COMMAND(moveParagraphBackwardAndModifySelection)
436WEBCORE_COMMAND(moveParagraphForwardAndModifySelection)
437WEBCORE_COMMAND(moveRight)
438WEBCORE_COMMAND(moveRightAndModifySelection)
439WEBCORE_COMMAND(moveToBeginningOfDocument)
440WEBCORE_COMMAND(moveToBeginningOfDocumentAndModifySelection)
441WEBCORE_COMMAND(moveToBeginningOfLine)
442WEBCORE_COMMAND(moveToBeginningOfLineAndModifySelection)
443WEBCORE_COMMAND(moveToBeginningOfParagraph)
444WEBCORE_COMMAND(moveToBeginningOfParagraphAndModifySelection)
445WEBCORE_COMMAND(moveToBeginningOfSentence)
446WEBCORE_COMMAND(moveToBeginningOfSentenceAndModifySelection)
447WEBCORE_COMMAND(moveToEndOfDocument)
448WEBCORE_COMMAND(moveToEndOfDocumentAndModifySelection)
449WEBCORE_COMMAND(moveToEndOfLine)
450WEBCORE_COMMAND(moveToEndOfLineAndModifySelection)
451WEBCORE_COMMAND(moveToEndOfParagraph)
452WEBCORE_COMMAND(moveToEndOfParagraphAndModifySelection)
453WEBCORE_COMMAND(moveToEndOfSentence)
454WEBCORE_COMMAND(moveToEndOfSentenceAndModifySelection)
455WEBCORE_COMMAND(moveToLeftEndOfLine)
456WEBCORE_COMMAND(moveToLeftEndOfLineAndModifySelection)
457WEBCORE_COMMAND(moveToRightEndOfLine)
458WEBCORE_COMMAND(moveToRightEndOfLineAndModifySelection)
459WEBCORE_COMMAND(moveUp)
460WEBCORE_COMMAND(moveUpAndModifySelection)
461WEBCORE_COMMAND(moveWordBackward)
462WEBCORE_COMMAND(moveWordBackwardAndModifySelection)
463WEBCORE_COMMAND(moveWordForward)
464WEBCORE_COMMAND(moveWordForwardAndModifySelection)
465WEBCORE_COMMAND(moveWordLeft)
466WEBCORE_COMMAND(moveWordLeftAndModifySelection)
467WEBCORE_COMMAND(moveWordRight)
468WEBCORE_COMMAND(moveWordRightAndModifySelection)
469WEBCORE_COMMAND(outdent)
470WEBCORE_COMMAND(pageDown)
471WEBCORE_COMMAND(pageDownAndModifySelection)
472WEBCORE_COMMAND(pageUp)
473WEBCORE_COMMAND(pageUpAndModifySelection)
474WEBCORE_COMMAND(paste)
475WEBCORE_COMMAND(pasteAsPlainText)
476WEBCORE_COMMAND(scrollPageDown)
477WEBCORE_COMMAND(scrollPageUp)
478WEBCORE_COMMAND(scrollToBeginningOfDocument)
479WEBCORE_COMMAND(scrollToEndOfDocument)
480WEBCORE_COMMAND(selectAll)
481WEBCORE_COMMAND(selectLine)
482WEBCORE_COMMAND(selectParagraph)
483WEBCORE_COMMAND(selectSentence)
484WEBCORE_COMMAND(selectToMark)
485WEBCORE_COMMAND(selectWord)
486WEBCORE_COMMAND(setMark)
487WEBCORE_COMMAND(subscript)
488WEBCORE_COMMAND(superscript)
489WEBCORE_COMMAND(swapWithMark)
490WEBCORE_COMMAND(takeFindStringFromSelection)
491WEBCORE_COMMAND(transpose)
492WEBCORE_COMMAND(underline)
493WEBCORE_COMMAND(unscript)
494WEBCORE_COMMAND(yank)
495WEBCORE_COMMAND(yankAndSelect)
496
497#undef WEBCORE_COMMAND
498
499/*
500
501When possible, editing-related methods should be implemented in WebCore with the
502EditorCommand mechanism and invoked via WEBCORE_COMMAND, rather than implementing
503individual methods here with Mac-specific code.
504
505Editing-related methods still unimplemented that are implemented in WebKit1:
506
507- (void)capitalizeWord:(id)sender;
508- (void)centerSelectionInVisibleArea:(id)sender;
509- (void)changeFont:(id)sender;
510- (void)complete:(id)sender;
511- (void)copyFont:(id)sender;
512- (void)lowercaseWord:(id)sender;
513- (void)makeBaseWritingDirectionLeftToRight:(id)sender;
514- (void)makeBaseWritingDirectionNatural:(id)sender;
515- (void)makeBaseWritingDirectionRightToLeft:(id)sender;
516- (void)pasteFont:(id)sender;
517- (void)scrollLineDown:(id)sender;
518- (void)scrollLineUp:(id)sender;
519- (void)showGuessPanel:(id)sender;
520- (void)uppercaseWord:(id)sender;
521
522Some other editing-related methods still unimplemented:
523
524- (void)changeCaseOfLetter:(id)sender;
525- (void)copyRuler:(id)sender;
526- (void)insertContainerBreak:(id)sender;
527- (void)insertDoubleQuoteIgnoringSubstitution:(id)sender;
528- (void)insertSingleQuoteIgnoringSubstitution:(id)sender;
529- (void)pasteRuler:(id)sender;
530- (void)toggleRuler:(id)sender;
531- (void)transposeWords:(id)sender;
532
533*/
534
535// Menu items validation
536
537static NSMenuItem *menuItem(id <NSValidatedUserInterfaceItem> item)
538{
539    if (![(NSObject *)item isKindOfClass:[NSMenuItem class]])
540        return nil;
541    return (NSMenuItem *)item;
542}
543
544static NSToolbarItem *toolbarItem(id <NSValidatedUserInterfaceItem> item)
545{
546    if (![(NSObject *)item isKindOfClass:[NSToolbarItem class]])
547        return nil;
548    return (NSToolbarItem *)item;
549}
550
551- (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)item
552{
553    SEL action = [item action];
554
555    if (action == @selector(showGuessPanel:)) {
556        if (NSMenuItem *menuItem = ::menuItem(item)) {
557            BOOL panelShowing = [[[NSSpellChecker sharedSpellChecker] spellingPanel] isVisible];
558            [menuItem setTitle:panelShowing
559                ? UI_STRING("Hide Spelling and Grammar", "menu item title")
560                : UI_STRING("Show Spelling and Grammar", "menu item title")];
561        }
562        return _data->_page->selectionState().isContentEditable;
563    }
564
565    if (action == @selector(checkSpelling:) || action == @selector(changeSpelling:))
566        return _data->_page->selectionState().isContentEditable;
567
568    if (action == @selector(toggleContinuousSpellChecking:)) {
569        bool enabled = TextChecker::isContinuousSpellCheckingAllowed();
570        bool checked = enabled && TextChecker::state().isContinuousSpellCheckingEnabled;
571        [menuItem(item) setState:checked ? NSOnState : NSOffState];
572        return enabled;
573    }
574
575    if (action == @selector(toggleGrammarChecking:)) {
576        bool checked = TextChecker::state().isGrammarCheckingEnabled;
577        [menuItem(item) setState:checked ? NSOnState : NSOffState];
578        return YES;
579    }
580
581    if (action == @selector(toggleAutomaticSpellingCorrection:)) {
582        bool checked = TextChecker::state().isAutomaticSpellingCorrectionEnabled;
583        [menuItem(item) setState:checked ? NSOnState : NSOffState];
584        return _data->_page->selectionState().isContentEditable;
585    }
586
587    if (action == @selector(orderFrontSubstitutionsPanel:)) {
588        if (NSMenuItem *menuItem = ::menuItem(item)) {
589            BOOL panelShowing = [[[NSSpellChecker sharedSpellChecker] substitutionsPanel] isVisible];
590            [menuItem setTitle:panelShowing
591                ? UI_STRING("Hide Substitutions", "menu item title")
592                : UI_STRING("Show Substitutions", "menu item title")];
593        }
594        return _data->_page->selectionState().isContentEditable;
595    }
596
597    if (action == @selector(toggleSmartInsertDelete:)) {
598        bool checked = _data->_page->isSmartInsertDeleteEnabled();
599        [menuItem(item) setState:checked ? NSOnState : NSOffState];
600        return _data->_page->selectionState().isContentEditable;
601    }
602
603    if (action == @selector(toggleAutomaticQuoteSubstitution:)) {
604        bool checked = TextChecker::state().isAutomaticQuoteSubstitutionEnabled;
605        [menuItem(item) setState:checked ? NSOnState : NSOffState];
606        return _data->_page->selectionState().isContentEditable;
607    }
608
609    if (action == @selector(toggleAutomaticDashSubstitution:)) {
610        bool checked = TextChecker::state().isAutomaticDashSubstitutionEnabled;
611        [menuItem(item) setState:checked ? NSOnState : NSOffState];
612        return _data->_page->selectionState().isContentEditable;
613    }
614
615    if (action == @selector(toggleAutomaticLinkDetection:)) {
616        bool checked = TextChecker::state().isAutomaticLinkDetectionEnabled;
617        [menuItem(item) setState:checked ? NSOnState : NSOffState];
618        return _data->_page->selectionState().isContentEditable;
619    }
620
621    if (action == @selector(toggleAutomaticTextReplacement:)) {
622        bool checked = TextChecker::state().isAutomaticTextReplacementEnabled;
623        [menuItem(item) setState:checked ? NSOnState : NSOffState];
624        return _data->_page->selectionState().isContentEditable;
625    }
626
627    if (action == @selector(uppercaseWord:) || action == @selector(lowercaseWord:) || action == @selector(capitalizeWord:))
628        return _data->_page->selectionState().selectedRangeLength && _data->_page->selectionState().isContentEditable;
629
630    if (action == @selector(stopSpeaking:))
631        return [NSApp isSpeaking];
632
633    // Next, handle editor commands. Start by returning YES for anything that is not an editor command.
634    // Returning YES is the default thing to do in an AppKit validate method for any selector that is not recognized.
635    String commandName = commandNameForSelector([item action]);
636    if (!Editor::commandIsSupportedFromMenuOrKeyBinding(commandName))
637        return YES;
638
639    // Add this item to the vector of items for a given command that are awaiting validation.
640    pair<ValidationMap::iterator, bool> addResult = _data->_validationMap.add(commandName, ValidationVector());
641    addResult.first->second.append(item);
642    if (addResult.second) {
643        // If we are not already awaiting validation for this command, start the asynchronous validation process.
644        // FIXME: Theoretically, there is a race here; when we get the answer it might be old, from a previous time
645        // we asked for the same command; there is no guarantee the answer is still valid.
646        // FIXME: The function called here should be renamed validateCommand because it is not specific to menu items.
647        _data->_page->validateMenuItem(commandName);
648    }
649
650    // Treat as enabled until we get the result back from the web process and _setUserInterfaceItemState is called.
651    // FIXME <rdar://problem/8803459>: This means disabled items will flash enabled at first for a moment.
652    // But returning NO here would be worse; that would make keyboard commands such as command-C fail.
653    return YES;
654}
655
656static void speakString(WKStringRef string, WKErrorRef error, void*)
657{
658    if (error)
659        return;
660    if (!string)
661        return;
662
663    NSString *convertedString = toImpl(string)->string();
664    [NSApp speakString:convertedString];
665}
666
667- (IBAction)startSpeaking:(id)sender
668{
669    _data->_page->getSelectionOrContentsAsString(StringCallback::create(0, speakString));
670}
671
672- (IBAction)stopSpeaking:(id)sender
673{
674    [NSApp stopSpeaking:sender];
675}
676
677- (IBAction)showGuessPanel:(id)sender
678{
679    NSSpellChecker *checker = [NSSpellChecker sharedSpellChecker];
680    if (!checker) {
681        LOG_ERROR("No NSSpellChecker");
682        return;
683    }
684
685    NSPanel *spellingPanel = [checker spellingPanel];
686    if ([spellingPanel isVisible]) {
687        [spellingPanel orderOut:sender];
688        return;
689    }
690
691    _data->_page->advanceToNextMisspelling(true);
692    [spellingPanel orderFront:sender];
693}
694
695- (IBAction)checkSpelling:(id)sender
696{
697    _data->_page->advanceToNextMisspelling(false);
698}
699
700- (void)changeSpelling:(id)sender
701{
702    NSString *word = [[sender selectedCell] stringValue];
703
704    _data->_page->changeSpellingToWord(word);
705}
706
707- (IBAction)toggleContinuousSpellChecking:(id)sender
708{
709    bool spellCheckingEnabled = !TextChecker::state().isContinuousSpellCheckingEnabled;
710    TextChecker::setContinuousSpellCheckingEnabled(spellCheckingEnabled);
711
712    _data->_page->process()->updateTextCheckerState();
713
714    if (!spellCheckingEnabled)
715        _data->_page->unmarkAllMisspellings();
716}
717
718- (IBAction)toggleGrammarChecking:(id)sender
719{
720    bool grammarCheckingEnabled = !TextChecker::state().isGrammarCheckingEnabled;
721    TextChecker::setGrammarCheckingEnabled(grammarCheckingEnabled);
722
723    _data->_page->process()->updateTextCheckerState();
724
725    if (!grammarCheckingEnabled)
726        _data->_page->unmarkAllBadGrammar();
727}
728
729- (IBAction)toggleAutomaticSpellingCorrection:(id)sender
730{
731    TextChecker::setAutomaticSpellingCorrectionEnabled(!TextChecker::state().isAutomaticSpellingCorrectionEnabled);
732
733    _data->_page->process()->updateTextCheckerState();
734}
735
736- (void)orderFrontSubstitutionsPanel:(id)sender
737{
738    NSSpellChecker *checker = [NSSpellChecker sharedSpellChecker];
739    if (!checker) {
740        LOG_ERROR("No NSSpellChecker");
741        return;
742    }
743
744    NSPanel *substitutionsPanel = [checker substitutionsPanel];
745    if ([substitutionsPanel isVisible]) {
746        [substitutionsPanel orderOut:sender];
747        return;
748    }
749    [substitutionsPanel orderFront:sender];
750}
751
752- (IBAction)toggleSmartInsertDelete:(id)sender
753{
754    _data->_page->setSmartInsertDeleteEnabled(!_data->_page->isSmartInsertDeleteEnabled());
755}
756
757- (BOOL)isAutomaticQuoteSubstitutionEnabled
758{
759    return TextChecker::state().isAutomaticQuoteSubstitutionEnabled;
760}
761
762- (void)setAutomaticQuoteSubstitutionEnabled:(BOOL)flag
763{
764    if (static_cast<bool>(flag) == TextChecker::state().isAutomaticQuoteSubstitutionEnabled)
765        return;
766
767    TextChecker::setAutomaticQuoteSubstitutionEnabled(flag);
768    _data->_page->process()->updateTextCheckerState();
769}
770
771- (void)toggleAutomaticQuoteSubstitution:(id)sender
772{
773    TextChecker::setAutomaticQuoteSubstitutionEnabled(!TextChecker::state().isAutomaticQuoteSubstitutionEnabled);
774    _data->_page->process()->updateTextCheckerState();
775}
776
777- (BOOL)isAutomaticDashSubstitutionEnabled
778{
779    return TextChecker::state().isAutomaticDashSubstitutionEnabled;
780}
781
782- (void)setAutomaticDashSubstitutionEnabled:(BOOL)flag
783{
784    if (static_cast<bool>(flag) == TextChecker::state().isAutomaticDashSubstitutionEnabled)
785        return;
786
787    TextChecker::setAutomaticDashSubstitutionEnabled(flag);
788    _data->_page->process()->updateTextCheckerState();
789}
790
791- (void)toggleAutomaticDashSubstitution:(id)sender
792{
793    TextChecker::setAutomaticDashSubstitutionEnabled(!TextChecker::state().isAutomaticDashSubstitutionEnabled);
794    _data->_page->process()->updateTextCheckerState();
795}
796
797- (BOOL)isAutomaticLinkDetectionEnabled
798{
799    return TextChecker::state().isAutomaticLinkDetectionEnabled;
800}
801
802- (void)setAutomaticLinkDetectionEnabled:(BOOL)flag
803{
804    if (static_cast<bool>(flag) == TextChecker::state().isAutomaticLinkDetectionEnabled)
805        return;
806
807    TextChecker::setAutomaticLinkDetectionEnabled(flag);
808    _data->_page->process()->updateTextCheckerState();
809}
810
811- (void)toggleAutomaticLinkDetection:(id)sender
812{
813    TextChecker::setAutomaticLinkDetectionEnabled(!TextChecker::state().isAutomaticLinkDetectionEnabled);
814    _data->_page->process()->updateTextCheckerState();
815}
816
817- (BOOL)isAutomaticTextReplacementEnabled
818{
819    return TextChecker::state().isAutomaticTextReplacementEnabled;
820}
821
822- (void)setAutomaticTextReplacementEnabled:(BOOL)flag
823{
824    if (static_cast<bool>(flag) == TextChecker::state().isAutomaticTextReplacementEnabled)
825        return;
826
827    TextChecker::setAutomaticTextReplacementEnabled(flag);
828    _data->_page->process()->updateTextCheckerState();
829}
830
831- (void)toggleAutomaticTextReplacement:(id)sender
832{
833    TextChecker::setAutomaticTextReplacementEnabled(!TextChecker::state().isAutomaticTextReplacementEnabled);
834    _data->_page->process()->updateTextCheckerState();
835}
836
837- (void)uppercaseWord:(id)sender
838{
839    _data->_page->uppercaseWord();
840}
841
842- (void)lowercaseWord:(id)sender
843{
844    _data->_page->lowercaseWord();
845}
846
847- (void)capitalizeWord:(id)sender
848{
849    _data->_page->capitalizeWord();
850}
851
852// Events
853
854// Override this so that AppKit will send us arrow keys as key down events so we can
855// support them via the key bindings mechanism.
856- (BOOL)_wantsKeyDownForEvent:(NSEvent *)event
857{
858    return YES;
859}
860
861- (void)_setMouseDownEvent:(NSEvent *)event
862{
863    ASSERT(!event || [event type] == NSLeftMouseDown || [event type] == NSRightMouseDown || [event type] == NSOtherMouseDown);
864
865    if (event == _data->_mouseDownEvent)
866        return;
867
868    [_data->_mouseDownEvent release];
869    _data->_mouseDownEvent = [event retain];
870}
871
872#define EVENT_HANDLER(Selector, Type) \
873    - (void)Selector:(NSEvent *)theEvent \
874    { \
875        Web##Type##Event webEvent = WebEventFactory::createWeb##Type##Event(theEvent, self); \
876        _data->_page->handle##Type##Event(webEvent); \
877    }
878
879EVENT_HANDLER(mouseEntered, Mouse)
880EVENT_HANDLER(mouseExited, Mouse)
881EVENT_HANDLER(mouseMoved, Mouse)
882EVENT_HANDLER(otherMouseDown, Mouse)
883EVENT_HANDLER(otherMouseDragged, Mouse)
884EVENT_HANDLER(otherMouseMoved, Mouse)
885EVENT_HANDLER(otherMouseUp, Mouse)
886EVENT_HANDLER(rightMouseDown, Mouse)
887EVENT_HANDLER(rightMouseDragged, Mouse)
888EVENT_HANDLER(rightMouseMoved, Mouse)
889EVENT_HANDLER(rightMouseUp, Mouse)
890EVENT_HANDLER(scrollWheel, Wheel)
891
892#undef EVENT_HANDLER
893
894- (void)_mouseHandler:(NSEvent *)event
895{
896    NSInputManager *currentInputManager = [NSInputManager currentInputManager];
897    if ([currentInputManager wantsToHandleMouseEvents] && [currentInputManager handleMouseEvent:event])
898        return;
899    WebMouseEvent webEvent = WebEventFactory::createWebMouseEvent(event, self);
900    _data->_page->handleMouseEvent(webEvent);
901}
902
903- (void)mouseDown:(NSEvent *)event
904{
905    [self _setMouseDownEvent:event];
906    _data->_ignoringMouseDraggedEvents = NO;
907    _data->_dragHasStarted = NO;
908    [self _mouseHandler:event];
909}
910
911- (void)mouseUp:(NSEvent *)event
912{
913    [self _setMouseDownEvent:nil];
914    [self _mouseHandler:event];
915}
916
917- (void)mouseDragged:(NSEvent *)event
918{
919    if (_data->_ignoringMouseDraggedEvents)
920        return;
921    [self _mouseHandler:event];
922}
923
924#if ENABLE(GESTURE_EVENTS)
925
926static const short kIOHIDEventTypeScroll = 6;
927
928- (void)shortCircuitedEndGestureWithEvent:(NSEvent *)event
929{
930    if ([event subtype] != kIOHIDEventTypeScroll)
931        return;
932
933    WebGestureEvent webEvent = WebEventFactory::createWebGestureEvent(event, self);
934    _data->_page->handleGestureEvent(webEvent);
935
936    if (_data->_endGestureMonitor) {
937        [NSEvent removeMonitor:_data->_endGestureMonitor];
938        _data->_endGestureMonitor = nil;
939    }
940}
941
942- (void)beginGestureWithEvent:(NSEvent *)event
943{
944    if ([event subtype] != kIOHIDEventTypeScroll)
945        return;
946
947    WebGestureEvent webEvent = WebEventFactory::createWebGestureEvent(event, self);
948    _data->_page->handleGestureEvent(webEvent);
949
950    if (!_data->_endGestureMonitor) {
951        _data->_endGestureMonitor = [NSEvent addLocalMonitorForEventsMatchingMask:NSEventMaskEndGesture handler:^(NSEvent *blockEvent) {
952            [self shortCircuitedEndGestureWithEvent:blockEvent];
953            return blockEvent;
954        }];
955    }
956}
957#endif
958
959- (void)doCommandBySelector:(SEL)selector
960{
961    if (selector != @selector(noop:))
962        _data->_commandsList.append(KeypressCommand(commandNameForSelector(selector)));
963}
964
965- (void)insertText:(id)string
966{
967    BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]]; // Otherwise, NSString
968
969    LOG(TextInput, "insertText:\"%@\"", isAttributedString ? [string string] : string);
970    NSString *text;
971    bool isFromInputMethod = _data->_page->selectionState().hasComposition;
972
973    if (isAttributedString) {
974        text = [string string];
975        // We deal with the NSTextInputReplacementRangeAttributeName attribute from NSAttributedString here
976        // simply because it is used by at least one Input Method -- it corresonds to the kEventParamTextInputSendReplaceRange
977        // event in TSM.  This behaviour matches that of -[WebHTMLView setMarkedText:selectedRange:] when it receives an
978        // NSAttributedString
979        NSString *rangeString = [string attribute:NSTextInputReplacementRangeAttributeName atIndex:0 longestEffectiveRange:NULL inRange:NSMakeRange(0, [text length])];
980        LOG(TextInput, "ReplacementRange: %@", rangeString);
981        if (rangeString)
982            isFromInputMethod = YES;
983    } else
984        text = string;
985
986    String eventText = text;
987
988    if (!isFromInputMethod)
989        _data->_commandsList.append(KeypressCommand("insertText", text));
990    else {
991        eventText.replace(NSBackTabCharacter, NSTabCharacter); // same thing is done in KeyEventMac.mm in WebCore
992        _data->_commandsList.append(KeypressCommand("insertText", eventText));
993    }
994}
995
996- (BOOL)_handleStyleKeyEquivalent:(NSEvent *)event
997{
998    if (!_data->_page->selectionState().isContentEditable)
999        return NO;
1000
1001    if (([event modifierFlags] & NSDeviceIndependentModifierFlagsMask) != NSCommandKeyMask)
1002        return NO;
1003
1004    // Here we special case cmd+b and cmd+i but not cmd+u, for historic reason.
1005    // This should not be changed, since it could break some Mac applications that
1006    // rely on this inherent behavior.
1007    // See https://bugs.webkit.org/show_bug.cgi?id=24943
1008
1009    NSString *string = [event characters];
1010    if ([string caseInsensitiveCompare:@"b"] == NSOrderedSame) {
1011        _data->_page->executeEditCommand("ToggleBold");
1012        return YES;
1013    }
1014    if ([string caseInsensitiveCompare:@"i"] == NSOrderedSame) {
1015        _data->_page->executeEditCommand("ToggleItalic");
1016        return YES;
1017    }
1018
1019    return NO;
1020}
1021
1022- (BOOL)performKeyEquivalent:(NSEvent *)event
1023{
1024    // There's a chance that responding to this event will run a nested event loop, and
1025    // fetching a new event might release the old one. Retaining and then autoreleasing
1026    // the current event prevents that from causing a problem inside WebKit or AppKit code.
1027    [[event retain] autorelease];
1028
1029    BOOL eventWasSentToWebCore = (_data->_keyDownEventBeingResent == event);
1030
1031    // Pass key combos through WebCore if there is a key binding available for
1032    // this event. This lets web pages have a crack at intercepting key-modified keypresses.
1033    // But don't do it if we have already handled the event.
1034    // Pressing Esc results in a fake event being sent - don't pass it to WebCore.
1035    if (!eventWasSentToWebCore && event == [NSApp currentEvent] && self == [[self window] firstResponder]) {
1036        [_data->_keyDownEventBeingResent release];
1037        _data->_keyDownEventBeingResent = nil;
1038
1039        _data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(event, self));
1040        return YES;
1041    }
1042
1043    return [self _handleStyleKeyEquivalent:event] || [super performKeyEquivalent:event];
1044}
1045
1046- (void)keyUp:(NSEvent *)theEvent
1047{
1048    _data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(theEvent, self));
1049}
1050
1051- (void)keyDown:(NSEvent *)theEvent
1052{
1053    if (_data->_pluginComplexTextInputIdentifier) {
1054        // Try feeding the keyboard event directly to the plug-in.
1055        NSString *string = nil;
1056        if ([[WKTextInputWindowController sharedTextInputWindowController] interpretKeyEvent:theEvent string:&string]) {
1057            if (string)
1058                _data->_page->sendComplexTextInputToPlugin(_data->_pluginComplexTextInputIdentifier, string);
1059            return;
1060        }
1061    }
1062
1063    _data->_underlines.clear();
1064    _data->_selectionStart = 0;
1065    _data->_selectionEnd = 0;
1066    // We could be receiving a key down from AppKit if we have re-sent an event
1067    // that maps to an action that is currently unavailable (for example a copy when
1068    // there is no range selection).
1069    // If this is the case we should ignore the key down.
1070    if (_data->_keyDownEventBeingResent == theEvent) {
1071        [_data->_keyDownEventBeingResent release];
1072        _data->_keyDownEventBeingResent = nil;
1073        [super keyDown:theEvent];
1074        return;
1075    }
1076    _data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(theEvent, self));
1077}
1078
1079- (NSTextInputContext *)inputContext {
1080    if (_data->_pluginComplexTextInputIdentifier)
1081        return [[WKTextInputWindowController sharedTextInputWindowController] inputContext];
1082
1083    return [super inputContext];
1084}
1085
1086- (NSRange)selectedRange
1087{
1088    if (_data->_page->selectionState().isNone || !_data->_page->selectionState().isContentEditable)
1089        return NSMakeRange(NSNotFound, 0);
1090
1091    LOG(TextInput, "selectedRange -> (%u, %u)", _data->_page->selectionState().selectedRangeStart, _data->_page->selectionState().selectedRangeLength);
1092    return NSMakeRange(_data->_page->selectionState().selectedRangeStart, _data->_page->selectionState().selectedRangeLength);
1093}
1094
1095- (BOOL)hasMarkedText
1096{
1097    LOG(TextInput, "hasMarkedText -> %u", _data->_page->selectionState().hasComposition);
1098    return _data->_page->selectionState().hasComposition;
1099}
1100
1101- (void)unmarkText
1102{
1103    LOG(TextInput, "unmarkText");
1104
1105    _data->_commandsList.append(KeypressCommand("unmarkText"));
1106}
1107
1108- (NSArray *)validAttributesForMarkedText
1109{
1110    static NSArray *validAttributes;
1111    if (!validAttributes) {
1112        validAttributes = [[NSArray alloc] initWithObjects:
1113                           NSUnderlineStyleAttributeName, NSUnderlineColorAttributeName,
1114                           NSMarkedClauseSegmentAttributeName, NSTextInputReplacementRangeAttributeName, nil];
1115        // NSText also supports the following attributes, but it's
1116        // hard to tell which are really required for text input to
1117        // work well; I have not seen any input method make use of them yet.
1118        //     NSFontAttributeName, NSForegroundColorAttributeName,
1119        //     NSBackgroundColorAttributeName, NSLanguageAttributeName.
1120        CFRetain(validAttributes);
1121    }
1122    LOG(TextInput, "validAttributesForMarkedText -> (...)");
1123    return validAttributes;
1124}
1125
1126static void extractUnderlines(NSAttributedString *string, Vector<CompositionUnderline>& result)
1127{
1128    int length = [[string string] length];
1129
1130    int i = 0;
1131    while (i < length) {
1132        NSRange range;
1133        NSDictionary *attrs = [string attributesAtIndex:i longestEffectiveRange:&range inRange:NSMakeRange(i, length - i)];
1134
1135        if (NSNumber *style = [attrs objectForKey:NSUnderlineStyleAttributeName]) {
1136            Color color = Color::black;
1137            if (NSColor *colorAttr = [attrs objectForKey:NSUnderlineColorAttributeName])
1138                color = colorFromNSColor([colorAttr colorUsingColorSpaceName:NSDeviceRGBColorSpace]);
1139            result.append(CompositionUnderline(range.location, NSMaxRange(range), color, [style intValue] > 1));
1140        }
1141
1142        i = range.location + range.length;
1143    }
1144}
1145
1146- (void)setMarkedText:(id)string selectedRange:(NSRange)newSelRange
1147{
1148    BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]]; // Otherwise, NSString
1149
1150    LOG(TextInput, "setMarkedText:\"%@\" selectedRange:(%u, %u)", isAttributedString ? [string string] : string, newSelRange.location, newSelRange.length);
1151
1152    NSString *text = string;
1153
1154    if (isAttributedString) {
1155        text = [string string];
1156        extractUnderlines(string, _data->_underlines);
1157    }
1158
1159    _data->_commandsList.append(KeypressCommand("setMarkedText", text));
1160    _data->_selectionStart = newSelRange.location;
1161    _data->_selectionEnd = NSMaxRange(newSelRange);
1162}
1163
1164- (NSRange)markedRange
1165{
1166    uint64_t location;
1167    uint64_t length;
1168
1169    _data->_page->getMarkedRange(location, length);
1170    LOG(TextInput, "markedRange -> (%u, %u)", location, length);
1171    return NSMakeRange(location, length);
1172}
1173
1174- (NSAttributedString *)attributedSubstringFromRange:(NSRange)nsRange
1175{
1176    // This is not implemented for now. Need to figure out how to serialize the attributed string across processes.
1177    LOG(TextInput, "attributedSubstringFromRange");
1178    return nil;
1179}
1180
1181- (NSUInteger)characterIndexForPoint:(NSPoint)thePoint
1182{
1183    NSWindow *window = [self window];
1184
1185    if (window)
1186        thePoint = [window convertScreenToBase:thePoint];
1187    thePoint = [self convertPoint:thePoint fromView:nil];  // the point is relative to the main frame
1188
1189    uint64_t result = _data->_page->characterIndexForPoint(IntPoint(thePoint));
1190    LOG(TextInput, "characterIndexForPoint:(%f, %f) -> %u", thePoint.x, thePoint.y, result);
1191    return result;
1192}
1193
1194- (NSRect)firstRectForCharacterRange:(NSRange)theRange
1195{
1196    // Just to match NSTextView's behavior. Regression tests cannot detect this;
1197    // to reproduce, use a test application from http://bugs.webkit.org/show_bug.cgi?id=4682
1198    // (type something; try ranges (1, -1) and (2, -1).
1199    if ((theRange.location + theRange.length < theRange.location) && (theRange.location + theRange.length != 0))
1200        theRange.length = 0;
1201
1202    NSRect resultRect = _data->_page->firstRectForCharacterRange(theRange.location, theRange.length);
1203    resultRect = [self convertRect:resultRect toView:nil];
1204
1205    NSWindow *window = [self window];
1206    if (window)
1207        resultRect.origin = [window convertBaseToScreen:resultRect.origin];
1208
1209    LOG(TextInput, "firstRectForCharacterRange:(%u, %u) -> (%f, %f, %f, %f)", theRange.location, theRange.length, resultRect.origin.x, resultRect.origin.y, resultRect.size.width, resultRect.size.height);
1210    return resultRect;
1211}
1212
1213- (void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation
1214{
1215    NSPoint windowImageLoc = [[self window] convertScreenToBase:aPoint];
1216    NSPoint windowMouseLoc = windowImageLoc;
1217
1218    // Prevent queued mouseDragged events from coming after the drag and fake mouseUp event.
1219    _data->_ignoringMouseDraggedEvents = YES;
1220
1221    _data->_page->dragEnded(IntPoint(windowMouseLoc), globalPoint(windowMouseLoc, [self window]), operation);
1222}
1223
1224- (DragApplicationFlags)applicationFlags:(id <NSDraggingInfo>)draggingInfo
1225{
1226    uint32_t flags = 0;
1227    if ([NSApp modalWindow])
1228        flags = DragApplicationIsModal;
1229    if ([[self window] attachedSheet])
1230        flags |= DragApplicationHasAttachedSheet;
1231    if ([draggingInfo draggingSource] == self)
1232        flags |= DragApplicationIsSource;
1233    if ([[NSApp currentEvent] modifierFlags] & NSAlternateKeyMask)
1234        flags |= DragApplicationIsCopyKeyDown;
1235    return static_cast<DragApplicationFlags>(flags);
1236}
1237
1238- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)draggingInfo
1239{
1240    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
1241    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
1242    DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
1243
1244    _data->_page->resetDragOperation();
1245    _data->_page->performDragControllerAction(DragControllerActionEntered, &dragData, [[draggingInfo draggingPasteboard] name]);
1246    return NSDragOperationCopy;
1247}
1248
1249- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)draggingInfo
1250{
1251    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
1252    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
1253    DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
1254    _data->_page->performDragControllerAction(DragControllerActionUpdated, &dragData, [[draggingInfo draggingPasteboard] name]);
1255    return _data->_page->dragOperation();
1256}
1257
1258- (void)draggingExited:(id <NSDraggingInfo>)draggingInfo
1259{
1260    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
1261    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
1262    DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
1263    _data->_page->performDragControllerAction(DragControllerActionExited, &dragData, [[draggingInfo draggingPasteboard] name]);
1264    _data->_page->resetDragOperation();
1265}
1266
1267- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)draggingInfo
1268{
1269    return YES;
1270}
1271
1272- (BOOL)performDragOperation:(id <NSDraggingInfo>)draggingInfo
1273{
1274    IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
1275    IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
1276    DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
1277    _data->_page->performDragControllerAction(DragControllerActionPerformDrag, &dragData, [[draggingInfo draggingPasteboard] name]);
1278    return YES;
1279}
1280
1281- (void)_updateWindowVisibility
1282{
1283    _data->_page->updateWindowIsVisible(![[self window] isMiniaturized]);
1284}
1285
1286- (BOOL)_ownsWindowGrowBox
1287{
1288    NSWindow* window = [self window];
1289    if (!window)
1290        return NO;
1291
1292    NSView *superview = [self superview];
1293    if (!superview)
1294        return NO;
1295
1296    NSRect growBoxRect = [window _growBoxRect];
1297    if (NSIsEmptyRect(growBoxRect))
1298        return NO;
1299
1300    NSRect visibleRect = [self visibleRect];
1301    if (NSIsEmptyRect(visibleRect))
1302        return NO;
1303
1304    NSRect visibleRectInWindowCoords = [self convertRect:visibleRect toView:nil];
1305    if (!NSIntersectsRect(growBoxRect, visibleRectInWindowCoords))
1306        return NO;
1307
1308    return YES;
1309}
1310
1311- (BOOL)_updateGrowBoxForWindowFrameChange
1312{
1313    // Temporarily enable the resize indicator to make a the _ownsWindowGrowBox calculation work.
1314    BOOL wasShowingIndicator = [[self window] showsResizeIndicator];
1315    if (!wasShowingIndicator)
1316        [[self window] setShowsResizeIndicator:YES];
1317
1318    BOOL ownsGrowBox = [self _ownsWindowGrowBox];
1319    _data->_page->setWindowResizerSize(ownsGrowBox ? enclosingIntRect([[self window] _growBoxRect]).size() : IntSize());
1320
1321    if (ownsGrowBox)
1322        [[self window] _setShowOpaqueGrowBoxForOwner:(_data->_page->hasHorizontalScrollbar() || _data->_page->hasVerticalScrollbar() ? self : nil)];
1323    else
1324        [[self window] _setShowOpaqueGrowBoxForOwner:nil];
1325
1326    // Once WebCore can draw the window resizer, this should read:
1327    // if (wasShowingIndicator)
1328    //     [[self window] setShowsResizeIndicator:!ownsGrowBox];
1329    if (!wasShowingIndicator)
1330        [[self window] setShowsResizeIndicator:NO];
1331
1332    return ownsGrowBox;
1333}
1334
1335- (void)addWindowObserversForWindow:(NSWindow *)window
1336{
1337    if (window) {
1338        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidBecomeKey:)
1339                                                     name:NSWindowDidBecomeKeyNotification object:nil];
1340        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidResignKey:)
1341                                                     name:NSWindowDidResignKeyNotification object:nil];
1342        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidMiniaturize:)
1343                                                     name:NSWindowDidMiniaturizeNotification object:window];
1344        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidDeminiaturize:)
1345                                                     name:NSWindowDidDeminiaturizeNotification object:window];
1346        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowFrameDidChange:)
1347                                                     name:NSWindowDidMoveNotification object:window];
1348        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowFrameDidChange:)
1349                                                     name:NSWindowDidResizeNotification object:window];
1350    }
1351}
1352
1353- (void)removeWindowObservers
1354{
1355    NSWindow *window = [self window];
1356    if (!window)
1357        return;
1358
1359    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidBecomeKeyNotification object:nil];
1360    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidResignKeyNotification object:nil];
1361    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidMiniaturizeNotification object:window];
1362    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidDeminiaturizeNotification object:window];
1363    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidMoveNotification object:window];
1364    [[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidResizeNotification object:window];
1365}
1366
1367- (void)viewWillMoveToWindow:(NSWindow *)window
1368{
1369    if (window != [self window]) {
1370        [self removeWindowObservers];
1371        [self addWindowObserversForWindow:window];
1372    }
1373}
1374
1375- (void)viewDidMoveToWindow
1376{
1377    // We want to make sure to update the active state while hidden, so if the view is about to become visible, we
1378    // update the active state first and then make it visible. If the view is about to be hidden, we hide it first and then
1379    // update the active state.
1380    if ([self window]) {
1381        _data->_page->viewStateDidChange(WebPageProxy::ViewWindowIsActive);
1382        _data->_page->viewStateDidChange(WebPageProxy::ViewIsVisible | WebPageProxy::ViewIsInWindow);
1383        [self _updateWindowVisibility];
1384        [self _updateWindowAndViewFrames];
1385
1386        // Initialize remote accessibility when the window connection has been established.
1387#if !defined(BUILDING_ON_SNOW_LEOPARD)
1388        NSData *remoteElementToken = WKAXRemoteTokenForElement(self);
1389        NSData *remoteWindowToken = WKAXRemoteTokenForElement([self window]);
1390        CoreIPC::DataReference elementToken = CoreIPC::DataReference(reinterpret_cast<const uint8_t*>([remoteElementToken bytes]), [remoteElementToken length]);
1391        CoreIPC::DataReference windowToken = CoreIPC::DataReference(reinterpret_cast<const uint8_t*>([remoteWindowToken bytes]), [remoteWindowToken length]);
1392        _data->_page->registerUIProcessAccessibilityTokens(elementToken, windowToken);
1393#endif
1394
1395    } else {
1396        _data->_page->viewStateDidChange(WebPageProxy::ViewIsVisible);
1397        _data->_page->viewStateDidChange(WebPageProxy::ViewWindowIsActive | WebPageProxy::ViewIsInWindow);
1398
1399#if ENABLE(GESTURE_EVENTS)
1400        if (_data->_endGestureMonitor) {
1401            [NSEvent removeMonitor:_data->_endGestureMonitor];
1402            _data->_endGestureMonitor = nil;
1403        }
1404#endif
1405    }
1406}
1407
1408- (void)_windowDidBecomeKey:(NSNotification *)notification
1409{
1410    NSWindow *keyWindow = [notification object];
1411    if (keyWindow == [self window] || keyWindow == [[self window] attachedSheet])
1412        _data->_page->viewStateDidChange(WebPageProxy::ViewWindowIsActive);
1413}
1414
1415- (void)_windowDidResignKey:(NSNotification *)notification
1416{
1417    NSWindow *formerKeyWindow = [notification object];
1418    if (formerKeyWindow == [self window] || formerKeyWindow == [[self window] attachedSheet])
1419        _data->_page->viewStateDidChange(WebPageProxy::ViewWindowIsActive);
1420}
1421
1422- (void)_windowDidMiniaturize:(NSNotification *)notification
1423{
1424    [self _updateWindowVisibility];
1425}
1426
1427- (void)_windowDidDeminiaturize:(NSNotification *)notification
1428{
1429    [self _updateWindowVisibility];
1430}
1431
1432- (void)_windowFrameDidChange:(NSNotification *)notification
1433{
1434    [self _updateWindowAndViewFrames];
1435}
1436
1437static void drawPageBackground(CGContextRef context, WebPageProxy* page, const IntRect& rect)
1438{
1439    if (!page->drawsBackground())
1440        return;
1441
1442    CGContextSaveGState(context);
1443    CGContextSetBlendMode(context, kCGBlendModeCopy);
1444
1445    CGColorRef backgroundColor;
1446    if (page->drawsTransparentBackground())
1447        backgroundColor = CGColorGetConstantColor(kCGColorClear);
1448    else
1449        backgroundColor = CGColorGetConstantColor(kCGColorWhite);
1450
1451    CGContextSetFillColorWithColor(context, backgroundColor);
1452    CGContextFillRect(context, rect);
1453
1454    CGContextRestoreGState(context);
1455}
1456
1457- (void)drawRect:(NSRect)rect
1458{
1459    LOG(View, "drawRect: x:%g, y:%g, width:%g, height:%g", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
1460    _data->_page->endPrinting();
1461    if (useNewDrawingArea()) {
1462        CGContextRef context = static_cast<CGContextRef>([[NSGraphicsContext currentContext] graphicsPort]);
1463
1464        if (DrawingAreaProxyImpl* drawingArea = static_cast<DrawingAreaProxyImpl*>(_data->_page->drawingArea())) {
1465            const NSRect *rectsBeingDrawn;
1466            NSInteger numRectsBeingDrawn;
1467            [self getRectsBeingDrawn:&rectsBeingDrawn count:&numRectsBeingDrawn];
1468            for (NSInteger i = 0; i < numRectsBeingDrawn; ++i) {
1469                Region unpaintedRegion;
1470                IntRect rect = enclosingIntRect(rectsBeingDrawn[i]);
1471                drawingArea->paint(context, rect, unpaintedRegion);
1472
1473                Vector<IntRect> unpaintedRects = unpaintedRegion.rects();
1474                for (size_t i = 0; i < unpaintedRects.size(); ++i)
1475                    drawPageBackground(context, _data->_page.get(), unpaintedRects[i]);
1476            }
1477        } else
1478            drawPageBackground(context, _data->_page.get(), enclosingIntRect(rect));
1479
1480        _data->_page->didDraw();
1481        return;
1482    }
1483
1484    if (_data->_page->isValid() && _data->_page->drawingArea()) {
1485        CGContextRef context = static_cast<CGContextRef>([[NSGraphicsContext currentContext] graphicsPort]);
1486        _data->_page->drawingArea()->paint(IntRect(rect), context);
1487        _data->_page->didDraw();
1488    } else if (_data->_page->drawsBackground()) {
1489        [_data->_page->drawsTransparentBackground() ? [NSColor clearColor] : [NSColor whiteColor] set];
1490        NSRectFill(rect);
1491    }
1492}
1493
1494- (BOOL)isOpaque
1495{
1496    return _data->_page->drawsBackground();
1497}
1498
1499- (void)viewDidHide
1500{
1501    _data->_page->viewStateDidChange(WebPageProxy::ViewIsVisible);
1502}
1503
1504- (void)viewDidUnhide
1505{
1506    _data->_page->viewStateDidChange(WebPageProxy::ViewIsVisible);
1507}
1508
1509- (BOOL)accessibilityIsIgnored
1510{
1511    return NO;
1512}
1513
1514- (id)accessibilityHitTest:(NSPoint)point
1515{
1516    return _data->_remoteAccessibilityChild.get();
1517}
1518
1519- (id)accessibilityAttributeValue:(NSString*)attribute
1520{
1521    if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
1522        if (!_data->_remoteAccessibilityChild)
1523            return nil;
1524        return [NSArray arrayWithObject:_data->_remoteAccessibilityChild.get()];
1525    }
1526    if ([attribute isEqualToString:NSAccessibilityRoleAttribute])
1527        return NSAccessibilityGroupRole;
1528    if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute])
1529        return NSAccessibilityRoleDescription(NSAccessibilityGroupRole, nil);
1530    if ([attribute isEqualToString:NSAccessibilityParentAttribute])
1531        return NSAccessibilityUnignoredAncestor([self superview]);
1532    if ([attribute isEqualToString:NSAccessibilityEnabledAttribute])
1533        return [NSNumber numberWithBool:YES];
1534
1535    return [super accessibilityAttributeValue:attribute];
1536}
1537
1538- (NSView *)hitTest:(NSPoint)point
1539{
1540    NSView *hitView = [super hitTest:point];
1541    if (hitView && _data && hitView == _data->_layerHostingView)
1542        hitView = self;
1543
1544#if USE(ACCELERATED_COMPOSITING)
1545    if (hitView && _data && hitView == _data->_oldLayerHostingView)
1546        hitView = self;
1547#endif
1548    return hitView;
1549}
1550
1551- (NSInteger)conversationIdentifier
1552{
1553    return (NSInteger)self;
1554}
1555
1556
1557- (BOOL)canChangeFrameLayout:(WKFrameRef)frameRef
1558{
1559    // PDF documents are already paginated, so we can't change them to add headers and footers.
1560    return !toImpl(frameRef)->isMainFrame() || !_data->_pdfViewController;
1561}
1562
1563- (NSPrintOperation *)printOperationWithPrintInfo:(NSPrintInfo *)printInfo forFrame:(WKFrameRef)frameRef
1564{
1565    LOG(View, "Creating an NSPrintOperation for frame '%s'", toImpl(frameRef)->url().utf8().data());
1566
1567    // Only the top frame can currently contain a PDF view.
1568    if (_data->_pdfViewController) {
1569        if (!toImpl(frameRef)->isMainFrame())
1570            return 0;
1571        return _data->_pdfViewController->makePrintOperation(printInfo);
1572    } else {
1573        RetainPtr<WKPrintingView> printingView(AdoptNS, [[WKPrintingView alloc] initWithFrameProxy:toImpl(frameRef)]);
1574        // NSPrintOperation takes ownership of the view.
1575        NSPrintOperation *printOperation = [NSPrintOperation printOperationWithView:printingView.get()];
1576        [printOperation setCanSpawnSeparateThread:YES];
1577        printingView->_printOperation = printOperation;
1578        return printOperation;
1579    }
1580}
1581
1582@end
1583
1584@implementation WKView (Internal)
1585
1586- (PassOwnPtr<WebKit::DrawingAreaProxy>)_createDrawingAreaProxy
1587{
1588    if (useNewDrawingArea())
1589        return DrawingAreaProxyImpl::create(_data->_page.get());
1590
1591    return ChunkedUpdateDrawingAreaProxy::create(self, _data->_page.get());
1592}
1593
1594- (BOOL)_isFocused
1595{
1596    if (_data->_inBecomeFirstResponder)
1597        return YES;
1598    if (_data->_inResignFirstResponder)
1599        return NO;
1600    return [[self window] firstResponder] == self;
1601}
1602
1603- (void)_processDidCrash
1604{
1605    [self setNeedsDisplay:YES];
1606    [self _updateRemoteAccessibilityRegistration:NO];
1607}
1608
1609- (void)_pageClosed
1610{
1611    [self _updateRemoteAccessibilityRegistration:NO];
1612}
1613
1614- (void)_didRelaunchProcess
1615{
1616    [self setNeedsDisplay:YES];
1617}
1618
1619- (void)_takeFocus:(BOOL)forward
1620{
1621    if (forward)
1622        [[self window] selectKeyViewFollowingView:self];
1623    else
1624        [[self window] selectKeyViewPrecedingView:self];
1625}
1626
1627- (void)_setCursor:(NSCursor *)cursor
1628{
1629    if ([NSCursor currentCursor] == cursor)
1630        return;
1631    [cursor set];
1632}
1633
1634- (void)_setUserInterfaceItemState:(NSString *)commandName enabled:(BOOL)isEnabled state:(int)newState
1635{
1636    ValidationVector items = _data->_validationMap.take(commandName);
1637    size_t size = items.size();
1638    for (size_t i = 0; i < size; ++i) {
1639        ValidationItem item = items[i].get();
1640        [menuItem(item) setState:newState];
1641        [menuItem(item) setEnabled:isEnabled];
1642        [toolbarItem(item) setEnabled:isEnabled];
1643        // FIXME <rdar://problem/8803392>: If the item is neither a menu nor toolbar item, it will be left enabled.
1644    }
1645}
1646
1647- (void)_setEventBeingResent:(NSEvent *)event
1648{
1649    _data->_keyDownEventBeingResent = [event retain];
1650}
1651
1652- (Vector<KeypressCommand>&)_interceptKeyEvent:(NSEvent *)theEvent
1653{
1654    _data->_commandsList.clear();
1655    // interpretKeyEvents will trigger one or more calls to doCommandBySelector or setText
1656    // that will populate the commandsList vector.
1657    [self interpretKeyEvents:[NSArray arrayWithObject:theEvent]];
1658    return _data->_commandsList;
1659}
1660
1661- (void)_getTextInputState:(unsigned)start selectionEnd:(unsigned)end underlines:(Vector<WebCore::CompositionUnderline>&)lines
1662{
1663    start = _data->_selectionStart;
1664    end = _data->_selectionEnd;
1665    lines = _data->_underlines;
1666}
1667
1668- (NSRect)_convertToDeviceSpace:(NSRect)rect
1669{
1670    return toDeviceSpace(rect, [self window]);
1671}
1672
1673- (NSRect)_convertToUserSpace:(NSRect)rect
1674{
1675    return toUserSpace(rect, [self window]);
1676}
1677
1678// Any non-zero value will do, but using something recognizable might help us debug some day.
1679#define TRACKING_RECT_TAG 0xBADFACE
1680
1681- (NSTrackingRectTag)addTrackingRect:(NSRect)rect owner:(id)owner userData:(void *)data assumeInside:(BOOL)assumeInside
1682{
1683    ASSERT(_data->_trackingRectOwner == nil);
1684    _data->_trackingRectOwner = owner;
1685    _data->_trackingRectUserData = data;
1686    return TRACKING_RECT_TAG;
1687}
1688
1689- (NSTrackingRectTag)_addTrackingRect:(NSRect)rect owner:(id)owner userData:(void *)data assumeInside:(BOOL)assumeInside useTrackingNum:(int)tag
1690{
1691    ASSERT(tag == 0 || tag == TRACKING_RECT_TAG);
1692    ASSERT(_data->_trackingRectOwner == nil);
1693    _data->_trackingRectOwner = owner;
1694    _data->_trackingRectUserData = data;
1695    return TRACKING_RECT_TAG;
1696}
1697
1698- (void)_addTrackingRects:(NSRect *)rects owner:(id)owner userDataList:(void **)userDataList assumeInsideList:(BOOL *)assumeInsideList trackingNums:(NSTrackingRectTag *)trackingNums count:(int)count
1699{
1700    ASSERT(count == 1);
1701    ASSERT(trackingNums[0] == 0 || trackingNums[0] == TRACKING_RECT_TAG);
1702    ASSERT(_data->_trackingRectOwner == nil);
1703    _data->_trackingRectOwner = owner;
1704    _data->_trackingRectUserData = userDataList[0];
1705    trackingNums[0] = TRACKING_RECT_TAG;
1706}
1707
1708- (void)removeTrackingRect:(NSTrackingRectTag)tag
1709{
1710    if (tag == 0)
1711        return;
1712
1713    if (_data && (tag == TRACKING_RECT_TAG)) {
1714        _data->_trackingRectOwner = nil;
1715        return;
1716    }
1717
1718    if (_data && (tag == _data->_lastToolTipTag)) {
1719        [super removeTrackingRect:tag];
1720        _data->_lastToolTipTag = 0;
1721        return;
1722    }
1723
1724    // If any other tracking rect is being removed, we don't know how it was created
1725    // and it's possible there's a leak involved (see 3500217)
1726    ASSERT_NOT_REACHED();
1727}
1728
1729- (void)_removeTrackingRects:(NSTrackingRectTag *)tags count:(int)count
1730{
1731    int i;
1732    for (i = 0; i < count; ++i) {
1733        int tag = tags[i];
1734        if (tag == 0)
1735            continue;
1736        ASSERT(tag == TRACKING_RECT_TAG);
1737        if (_data != nil) {
1738            _data->_trackingRectOwner = nil;
1739        }
1740    }
1741}
1742
1743- (void)_sendToolTipMouseExited
1744{
1745    // Nothing matters except window, trackingNumber, and userData.
1746    NSEvent *fakeEvent = [NSEvent enterExitEventWithType:NSMouseExited
1747        location:NSMakePoint(0, 0)
1748        modifierFlags:0
1749        timestamp:0
1750        windowNumber:[[self window] windowNumber]
1751        context:NULL
1752        eventNumber:0
1753        trackingNumber:TRACKING_RECT_TAG
1754        userData:_data->_trackingRectUserData];
1755    [_data->_trackingRectOwner mouseExited:fakeEvent];
1756}
1757
1758- (void)_sendToolTipMouseEntered
1759{
1760    // Nothing matters except window, trackingNumber, and userData.
1761    NSEvent *fakeEvent = [NSEvent enterExitEventWithType:NSMouseEntered
1762        location:NSMakePoint(0, 0)
1763        modifierFlags:0
1764        timestamp:0
1765        windowNumber:[[self window] windowNumber]
1766        context:NULL
1767        eventNumber:0
1768        trackingNumber:TRACKING_RECT_TAG
1769        userData:_data->_trackingRectUserData];
1770    [_data->_trackingRectOwner mouseEntered:fakeEvent];
1771}
1772
1773- (NSString *)view:(NSView *)view stringForToolTip:(NSToolTipTag)tag point:(NSPoint)point userData:(void *)data
1774{
1775    return nsStringFromWebCoreString(_data->_page->toolTip());
1776}
1777
1778- (void)_toolTipChangedFrom:(NSString *)oldToolTip to:(NSString *)newToolTip
1779{
1780    if (oldToolTip)
1781        [self _sendToolTipMouseExited];
1782
1783    if (newToolTip && [newToolTip length] > 0) {
1784        // See radar 3500217 for why we remove all tooltips rather than just the single one we created.
1785        [self removeAllToolTips];
1786        NSRect wideOpenRect = NSMakeRect(-100000, -100000, 200000, 200000);
1787        _data->_lastToolTipTag = [self addToolTipRect:wideOpenRect owner:self userData:NULL];
1788        [self _sendToolTipMouseEntered];
1789    }
1790}
1791
1792- (void)_setFindIndicator:(PassRefPtr<FindIndicator>)findIndicator fadeOut:(BOOL)fadeOut
1793{
1794    if (!findIndicator) {
1795        _data->_findIndicatorWindow = 0;
1796        return;
1797    }
1798
1799    if (!_data->_findIndicatorWindow)
1800        _data->_findIndicatorWindow = FindIndicatorWindow::create(self);
1801
1802    _data->_findIndicatorWindow->setFindIndicator(findIndicator, fadeOut);
1803}
1804
1805#if USE(ACCELERATED_COMPOSITING)
1806- (void)_startAcceleratedCompositing:(CALayer *)rootLayer
1807{
1808    if (!_data->_oldLayerHostingView) {
1809        NSView *hostingView = [[NSView alloc] initWithFrame:[self bounds]];
1810#if !defined(BUILDING_ON_LEOPARD)
1811        [hostingView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
1812#endif
1813
1814        [self addSubview:hostingView];
1815        [hostingView release];
1816        _data->_oldLayerHostingView = hostingView;
1817    }
1818
1819    // Make a container layer, which will get sized/positioned by AppKit and CA.
1820    CALayer *viewLayer = [CALayer layer];
1821
1822#ifndef NDEBUG
1823    [viewLayer setName:@"hosting layer"];
1824#endif
1825
1826#if defined(BUILDING_ON_LEOPARD)
1827    // Turn off default animations.
1828    NSNull *nullValue = [NSNull null];
1829    NSDictionary *actions = [NSDictionary dictionaryWithObjectsAndKeys:
1830                             nullValue, @"anchorPoint",
1831                             nullValue, @"bounds",
1832                             nullValue, @"contents",
1833                             nullValue, @"contentsRect",
1834                             nullValue, @"opacity",
1835                             nullValue, @"position",
1836                             nullValue, @"sublayerTransform",
1837                             nullValue, @"sublayers",
1838                             nullValue, @"transform",
1839                             nil];
1840    [viewLayer setStyle:[NSDictionary dictionaryWithObject:actions forKey:@"actions"]];
1841#endif
1842
1843#if !defined(BUILDING_ON_LEOPARD)
1844    // If we aren't in the window yet, we'll use the screen's scale factor now, and reset the scale
1845    // via -viewDidMoveToWindow.
1846    CGFloat scaleFactor = [self window] ? [[self window] userSpaceScaleFactor] : [[NSScreen mainScreen] userSpaceScaleFactor];
1847    [viewLayer setTransform:CATransform3DMakeScale(scaleFactor, scaleFactor, 1)];
1848#endif
1849
1850    [_data->_oldLayerHostingView setLayer:viewLayer];
1851    [_data->_oldLayerHostingView setWantsLayer:YES];
1852
1853    // Parent our root layer in the container layer
1854    [viewLayer addSublayer:rootLayer];
1855}
1856
1857- (void)_stopAcceleratedCompositing
1858{
1859    if (_data->_oldLayerHostingView) {
1860        [_data->_oldLayerHostingView setLayer:nil];
1861        [_data->_oldLayerHostingView setWantsLayer:NO];
1862        [_data->_oldLayerHostingView removeFromSuperview];
1863        _data->_oldLayerHostingView = nil;
1864    }
1865}
1866
1867- (void)_switchToDrawingAreaTypeIfNecessary:(DrawingAreaInfo::Type)type
1868{
1869    DrawingAreaInfo::Type existingDrawingAreaType = _data->_page->drawingArea() ? _data->_page->drawingArea()->info().type : DrawingAreaInfo::None;
1870    if (existingDrawingAreaType == type)
1871        return;
1872
1873    OwnPtr<DrawingAreaProxy> newDrawingArea;
1874    switch (type) {
1875        case DrawingAreaInfo::Impl:
1876        case DrawingAreaInfo::None:
1877            break;
1878        case DrawingAreaInfo::ChunkedUpdate: {
1879            newDrawingArea = ChunkedUpdateDrawingAreaProxy::create(self, _data->_page.get());
1880            break;
1881        }
1882        case DrawingAreaInfo::LayerBacked: {
1883            newDrawingArea = LayerBackedDrawingAreaProxy::create(self, _data->_page.get());
1884            break;
1885        }
1886    }
1887
1888    newDrawingArea->setSize(IntSize([self frame].size), IntSize());
1889
1890    _data->_page->drawingArea()->detachCompositingContext();
1891    _data->_page->setDrawingArea(newDrawingArea.release());
1892}
1893
1894- (void)_enterAcceleratedCompositingMode:(const LayerTreeContext&)layerTreeContext
1895{
1896    ASSERT(!_data->_layerHostingView);
1897    ASSERT(!layerTreeContext.isEmpty());
1898
1899    // Create an NSView that will host our layer tree.
1900    _data->_layerHostingView.adoptNS([[NSView alloc] initWithFrame:[self bounds]]);
1901    [_data->_layerHostingView.get() setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
1902    [self addSubview:_data->_layerHostingView.get()];
1903
1904    // Create a root layer that will back the NSView.
1905    RetainPtr<CALayer> rootLayer(AdoptNS, [[CALayer alloc] init]);
1906#ifndef NDEBUG
1907    [rootLayer.get() setName:@"Hosting root layer"];
1908#endif
1909
1910    CALayer *renderLayer = WKMakeRenderLayer(layerTreeContext.contextID);
1911    [rootLayer.get() addSublayer:renderLayer];
1912
1913    [_data->_layerHostingView.get() setLayer:rootLayer.get()];
1914    [_data->_layerHostingView.get() setWantsLayer:YES];
1915}
1916
1917- (void)_exitAcceleratedCompositingMode
1918{
1919    ASSERT(_data->_layerHostingView);
1920
1921    [_data->_layerHostingView.get() setLayer:nil];
1922    [_data->_layerHostingView.get() setWantsLayer:NO];
1923    [_data->_layerHostingView.get() removeFromSuperview];
1924
1925    _data->_layerHostingView = nullptr;
1926}
1927
1928- (void)_pageDidEnterAcceleratedCompositing
1929{
1930    [self _switchToDrawingAreaTypeIfNecessary:DrawingAreaInfo::LayerBacked];
1931}
1932
1933- (void)_pageDidLeaveAcceleratedCompositing
1934{
1935    // FIXME: we may want to avoid flipping back to the non-layer-backed drawing area until the next page load, to avoid thrashing.
1936    [self _switchToDrawingAreaTypeIfNecessary:DrawingAreaInfo::ChunkedUpdate];
1937}
1938#endif // USE(ACCELERATED_COMPOSITING)
1939
1940- (void)_setAccessibilityWebProcessToken:(NSData *)data
1941{
1942#if !defined(BUILDING_ON_SNOW_LEOPARD)
1943    _data->_remoteAccessibilityChild = WKAXRemoteElementForToken(data);
1944    [self _updateRemoteAccessibilityRegistration:YES];
1945#endif
1946}
1947
1948- (void)_setComplexTextInputEnabled:(BOOL)complexTextInputEnabled pluginComplexTextInputIdentifier:(uint64_t)pluginComplexTextInputIdentifier
1949{
1950    BOOL inputSourceChanged = _data->_pluginComplexTextInputIdentifier;
1951
1952    if (complexTextInputEnabled) {
1953        // Check if we're already allowing text input for this plug-in.
1954        if (pluginComplexTextInputIdentifier == _data->_pluginComplexTextInputIdentifier)
1955            return;
1956
1957        _data->_pluginComplexTextInputIdentifier = pluginComplexTextInputIdentifier;
1958
1959    } else {
1960        // Check if we got a request to disable complex text input for a plug-in that is not the current plug-in.
1961        if (pluginComplexTextInputIdentifier != _data->_pluginComplexTextInputIdentifier)
1962            return;
1963
1964        _data->_pluginComplexTextInputIdentifier = 0;
1965    }
1966
1967    if (inputSourceChanged) {
1968        // Inform the out of line window that the input source changed.
1969        [[WKTextInputWindowController sharedTextInputWindowController] keyboardInputSourceChanged];
1970    }
1971}
1972
1973- (void)_setPageHasCustomRepresentation:(BOOL)pageHasCustomRepresentation
1974{
1975    _data->_pdfViewController = nullptr;
1976
1977    if (pageHasCustomRepresentation)
1978        _data->_pdfViewController = PDFViewController::create(self);
1979}
1980
1981- (void)_didFinishLoadingDataForCustomRepresentation:(const CoreIPC::DataReference&)dataReference
1982{
1983    ASSERT(_data->_pdfViewController);
1984
1985    _data->_pdfViewController->setPDFDocumentData(_data->_page->mainFrame()->mimeType(), dataReference);
1986}
1987
1988- (double)_customRepresentationZoomFactor
1989{
1990    if (!_data->_pdfViewController)
1991        return 1;
1992
1993    return _data->_pdfViewController->zoomFactor();
1994}
1995
1996- (void)_setCustomRepresentationZoomFactor:(double)zoomFactor
1997{
1998    if (!_data->_pdfViewController)
1999        return;
2000
2001    _data->_pdfViewController->setZoomFactor(zoomFactor);
2002}
2003
2004- (void)_setDragImage:(NSImage *)image at:(NSPoint)clientPoint linkDrag:(BOOL)linkDrag
2005{
2006    // We need to prevent re-entering this call to avoid crashing in AppKit.
2007    // Given the asynchronous nature of WebKit2 this can now happen.
2008    if (_data->_dragHasStarted)
2009        return;
2010
2011    _data->_dragHasStarted = YES;
2012    [super dragImage:image
2013                  at:clientPoint
2014              offset:NSZeroSize
2015               event:(linkDrag) ? [NSApp currentEvent] :_data->_mouseDownEvent
2016          pasteboard:[NSPasteboard pasteboardWithName:NSDragPboard]
2017              source:self
2018           slideBack:YES];
2019    _data->_dragHasStarted = NO;
2020}
2021
2022- (void)_setDrawingAreaSize:(NSSize)size
2023{
2024    if (!_data->_page->drawingArea())
2025        return;
2026
2027    _data->_page->drawingArea()->setSize(IntSize(size), IntSize(_data->_resizeScrollOffset));
2028    _data->_resizeScrollOffset = NSZeroSize;
2029}
2030
2031- (void)_didChangeScrollbarsForMainFrame
2032{
2033    [self _updateGrowBoxForWindowFrameChange];
2034}
2035
2036@end
2037
2038@implementation WKView (Private)
2039
2040- (void)disableFrameSizeUpdates
2041{
2042    _frameSizeUpdatesDisabledCount++;
2043}
2044
2045- (void)enableFrameSizeUpdates
2046{
2047    if (!_frameSizeUpdatesDisabledCount)
2048        return;
2049
2050    if (!(--_frameSizeUpdatesDisabledCount))
2051        [self _setDrawingAreaSize:[self frame].size];
2052}
2053
2054- (BOOL)frameSizeUpdatesDisabled
2055{
2056    return _frameSizeUpdatesDisabledCount > 0;
2057}
2058
2059@end
2060
2061