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webkit / WebKit / e808c87ee57061f0d3969a8103c5def6b6a6f9aa / . / Source / WebKit2 / UIProcess / API / mac / WKView.mm
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/*
* Copyright (C) 2010, 2011 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#import "WKView.h"
#if USE(DICTATION_ALTERNATIVES)
#import <AppKit/NSTextAlternatives.h>
#import <AppKit/NSAttributedString.h>
#endif
#import "AttributedString.h"
#import "ColorSpaceData.h"
#import "DataReference.h"
#import "EditorState.h"
#import "FindIndicator.h"
#import "FindIndicatorWindow.h"
#import "LayerTreeContext.h"
#import "Logging.h"
#import "NativeWebKeyboardEvent.h"
#import "NativeWebMouseEvent.h"
#import "NativeWebWheelEvent.h"
#import "PageClientImpl.h"
#import "PasteboardTypes.h"
#import "RemoteLayerTreeDrawingAreaProxy.h"
#import "StringUtilities.h"
#import "TextChecker.h"
#import "TextCheckerState.h"
#import "TiledCoreAnimationDrawingAreaProxy.h"
#import "ViewGestureController.h"
#import "WKAPICast.h"
#import "WKFullScreenWindowController.h"
#import "WKPrintingView.h"
#import "WKStringCF.h"
#import "WKTextInputWindowController.h"
#import "WKViewInternal.h"
#import "WKViewPrivate.h"
#import "WebContext.h"
#import "WebEventFactory.h"
#import "WebKit2Initialize.h"
#import "WebPage.h"
#import "WebPageGroup.h"
#import "WebPageProxy.h"
#import "WebPreferences.h"
#import "WebProcessProxy.h"
#import "WebSystemInterface.h"
#import <QuartzCore/QuartzCore.h>
#import <WebCore/AXObjectCache.h>
#import <WebCore/ColorMac.h>
#import <WebCore/DragController.h>
#import <WebCore/DragData.h>
#import <WebCore/DragSession.h>
#import <WebCore/FloatRect.h>
#import <WebCore/Image.h>
#import <WebCore/IntRect.h>
#import <WebCore/FileSystem.h>
#import <WebCore/KeyboardEvent.h>
#import <WebCore/LocalizedStrings.h>
#import <WebCore/PlatformEventFactoryMac.h>
#import <WebCore/PlatformScreen.h>
#import <WebCore/Region.h>
#import <WebCore/SharedBuffer.h>
#import <WebCore/TextAlternativeWithRange.h>
#import <WebCore/WebCoreFullScreenPlaceholderView.h>
#import <WebCore/WebCoreFullScreenWindow.h>
#import <WebCore/WebCoreNSStringExtras.h>
#import <WebKitSystemInterface.h>
#import <sys/stat.h>
#import <wtf/RefPtr.h>
#import <wtf/RetainPtr.h>
#import <wtf/RunLoop.h>
/* API internals. */
#import "WKBrowsingContextControllerInternal.h"
#import "WKBrowsingContextGroupPrivate.h"
#import "WKProcessGroupPrivate.h"
@interface NSApplication (WKNSApplicationDetails)
- (void)speakString:(NSString *)string;
- (void)_setCurrentEvent:(NSEvent *)event;
@end
@interface NSObject (WKNSTextInputContextDetails)
- (BOOL)wantsToHandleMouseEvents;
- (BOOL)handleMouseEvent:(NSEvent *)event;
@end
@interface NSWindow (WKNSWindowDetails)
- (NSRect)_intersectBottomCornersWithRect:(NSRect)viewRect;
- (void)_maskRoundedBottomCorners:(NSRect)clipRect;
@end
using namespace WebKit;
using namespace WebCore;
namespace WebKit {
typedef id <NSValidatedUserInterfaceItem> ValidationItem;
typedef Vector<RetainPtr<ValidationItem>> ValidationVector;
typedef HashMap<String, ValidationVector> ValidationMap;
}
struct WKViewInterpretKeyEventsParameters {
bool eventInterpretationHadSideEffects;
bool consumedByIM;
bool executingSavedKeypressCommands;
Vector<KeypressCommand>* commands;
};
@interface WKView ()
- (void)_accessibilityRegisterUIProcessTokens;
- (void)_disableComplexTextInputIfNecessary;
- (float)_intrinsicDeviceScaleFactor;
- (void)_postFakeMouseMovedEventForFlagsChangedEvent:(NSEvent *)flagsChangedEvent;
- (void)_setDrawingAreaSize:(NSSize)size;
- (void)_setPluginComplexTextInputState:(PluginComplexTextInputState)pluginComplexTextInputState;
@end
@interface WKViewData : NSObject {
@public
std::unique_ptr<PageClientImpl> _pageClient;
RefPtr<WebPageProxy> _page;
// For ToolTips.
NSToolTipTag _lastToolTipTag;
id _trackingRectOwner;
void* _trackingRectUserData;
RetainPtr<NSView> _layerHostingView;
RetainPtr<id> _remoteAccessibilityChild;
// For asynchronous validation.
ValidationMap _validationMap;
std::unique_ptr<FindIndicatorWindow> _findIndicatorWindow;
// We keep here the event when resending it to
// the application to distinguish the case of a new event from one
// that has been already sent to WebCore.
RetainPtr<NSEvent> _keyDownEventBeingResent;
WKViewInterpretKeyEventsParameters* _interpretKeyEventsParameters;
NSSize _resizeScrollOffset;
// The identifier of the plug-in we want to send complex text input to, or 0 if there is none.
uint64_t _pluginComplexTextInputIdentifier;
// The state of complex text input for the plug-in.
PluginComplexTextInputState _pluginComplexTextInputState;
bool _inBecomeFirstResponder;
bool _inResignFirstResponder;
NSEvent *_mouseDownEvent;
BOOL _ignoringMouseDraggedEvents;
id _flagsChangedEventMonitor;
#if ENABLE(FULLSCREEN_API)
RetainPtr<WKFullScreenWindowController> _fullScreenWindowController;
#endif
BOOL _hasSpellCheckerDocumentTag;
NSInteger _spellCheckerDocumentTag;
BOOL _inSecureInputState;
NSRect _windowBottomCornerIntersectionRect;
unsigned _frameSizeUpdatesDisabledCount;
BOOL _shouldDeferViewInWindowChanges;
BOOL _viewInWindowChangeWasDeferred;
BOOL _needsViewFrameInWindowCoordinates;
BOOL _didScheduleWindowAndViewFrameUpdate;
// Whether the containing window of the WKView has a valid backing store.
// The window server invalidates the backing store whenever the window is resized or minimized.
// We use this flag to determine when we need to paint the background (white or clear)
// when the web process is unresponsive or takes too long to paint.
BOOL _windowHasValidBackingStore;
RetainPtr<NSColorSpace> _colorSpace;
RefPtr<WebCore::Image> _promisedImage;
String _promisedFilename;
String _promisedURL;
NSSize _intrinsicContentSize;
BOOL _clipsToVisibleRect;
NSRect _contentPreparationRect;
BOOL _useContentPreparationRectForVisibleRect;
BOOL _windowOcclusionDetectionEnabled;
std::unique_ptr<ViewGestureController> _gestureController;
BOOL _allowsMagnification;
}
@end
@implementation WKViewData
@end
@interface WKResponderChainSink : NSResponder {
NSResponder *_lastResponderInChain;
bool _didReceiveUnhandledCommand;
}
- (id)initWithResponderChain:(NSResponder *)chain;
- (void)detach;
- (bool)didReceiveUnhandledCommand;
@end
@interface WKFlippedView : NSView
@end
@implementation WKFlippedView
- (BOOL)isFlipped
{
return YES;
}
@end
@implementation WKView
#if WK_API_ENABLED
- (id)initWithFrame:(NSRect)frame processGroup:(WKProcessGroup *)processGroup browsingContextGroup:(WKBrowsingContextGroup *)browsingContextGroup
{
return [self initWithFrame:frame contextRef:processGroup._contextRef pageGroupRef:browsingContextGroup._pageGroupRef relatedToPage:nil];
}
- (id)initWithFrame:(NSRect)frame processGroup:(WKProcessGroup *)processGroup browsingContextGroup:(WKBrowsingContextGroup *)browsingContextGroup relatedToView:(WKView *)relatedView
{
return [self initWithFrame:frame contextRef:processGroup._contextRef pageGroupRef:browsingContextGroup._pageGroupRef relatedToPage:relatedView ? toAPI(relatedView->_data->_page.get()) : nil];
}
#endif // WK_API_ENABLED
- (void)dealloc
{
_data->_page->close();
ASSERT(!_data->_inSecureInputState);
[_data release];
_data = nil;
NSNotificationCenter* workspaceNotificationCenter = [[NSWorkspace sharedWorkspace] notificationCenter];
[workspaceNotificationCenter removeObserver:self name:NSWorkspaceActiveSpaceDidChangeNotification object:nil];
WebContext::statistics().wkViewCount--;
[super dealloc];
}
#if WK_API_ENABLED
- (WKBrowsingContextController *)browsingContextController
{
return wrapper(*_data->_page);
}
#endif // WK_API_ENABLED
- (void)setDrawsBackground:(BOOL)drawsBackground
{
_data->_page->setDrawsBackground(drawsBackground);
}
- (BOOL)drawsBackground
{
return _data->_page->drawsBackground();
}
- (void)setDrawsTransparentBackground:(BOOL)drawsTransparentBackground
{
_data->_page->setDrawsTransparentBackground(drawsTransparentBackground);
}
- (BOOL)drawsTransparentBackground
{
return _data->_page->drawsTransparentBackground();
}
- (BOOL)acceptsFirstResponder
{
return YES;
}
- (BOOL)becomeFirstResponder
{
NSSelectionDirection direction = [[self window] keyViewSelectionDirection];
_data->_inBecomeFirstResponder = true;
[self _updateSecureInputState];
_data->_page->viewStateDidChange(ViewState::IsFocused);
_data->_inBecomeFirstResponder = false;
if (direction != NSDirectSelection) {
NSEvent *event = [NSApp currentEvent];
NSEvent *keyboardEvent = nil;
if ([event type] == NSKeyDown || [event type] == NSKeyUp)
keyboardEvent = event;
_data->_page->setInitialFocus(direction == NSSelectingNext, keyboardEvent != nil, NativeWebKeyboardEvent(keyboardEvent, self));
}
return YES;
}
- (BOOL)resignFirstResponder
{
_data->_inResignFirstResponder = true;
if (_data->_page->editorState().hasComposition && !_data->_page->editorState().shouldIgnoreCompositionSelectionChange)
_data->_page->cancelComposition();
[self _notifyInputContextAboutDiscardedComposition];
[self _resetSecureInputState];
if (!_data->_page->maintainsInactiveSelection())
_data->_page->clearSelection();
_data->_page->viewStateDidChange(ViewState::IsFocused);
_data->_inResignFirstResponder = false;
return YES;
}
- (void)viewWillStartLiveResize
{
_data->_page->viewWillStartLiveResize();
}
- (void)viewDidEndLiveResize
{
_data->_page->viewWillEndLiveResize();
}
- (BOOL)isFlipped
{
return YES;
}
- (NSSize)intrinsicContentSize
{
return _data->_intrinsicContentSize;
}
- (void)prepareContentInRect:(NSRect)rect
{
_data->_contentPreparationRect = rect;
_data->_useContentPreparationRectForVisibleRect = YES;
[self _updateViewExposedRect];
}
- (void)_updateViewExposedRect
{
NSRect exposedRect = [self visibleRect];
if (_data->_useContentPreparationRectForVisibleRect)
exposedRect = NSUnionRect(_data->_contentPreparationRect, exposedRect);
_data->_page->viewExposedRectChanged(exposedRect, _data->_clipsToVisibleRect);
}
- (void)setFrameSize:(NSSize)size
{
if (!NSEqualSizes(size, [self frame].size))
_data->_windowHasValidBackingStore = NO;
[super setFrameSize:size];
if (![self frameSizeUpdatesDisabled]) {
if (_data->_clipsToVisibleRect)
[self _updateViewExposedRect];
[self _setDrawingAreaSize:size];
}
}
- (void)_updateWindowAndViewFrames
{
if (_data->_clipsToVisibleRect)
[self _updateViewExposedRect];
if (_data->_didScheduleWindowAndViewFrameUpdate)
return;
_data->_didScheduleWindowAndViewFrameUpdate = YES;
dispatch_async(dispatch_get_main_queue(), ^{
_data->_didScheduleWindowAndViewFrameUpdate = NO;
NSRect viewFrameInWindowCoordinates = NSZeroRect;
NSPoint accessibilityPosition = NSZeroPoint;
if (_data->_needsViewFrameInWindowCoordinates)
viewFrameInWindowCoordinates = [self convertRect:self.frame toView:nil];
if (WebCore::AXObjectCache::accessibilityEnabled())
accessibilityPosition = [[self accessibilityAttributeValue:NSAccessibilityPositionAttribute] pointValue];
_data->_page->windowAndViewFramesChanged(viewFrameInWindowCoordinates, accessibilityPosition);
});
}
- (void)renewGState
{
// Hide the find indicator.
_data->_findIndicatorWindow = nullptr;
// Update the view frame.
if ([self window])
[self _updateWindowAndViewFrames];
[super renewGState];
}
- (void)_setPluginComplexTextInputState:(PluginComplexTextInputState)pluginComplexTextInputState
{
_data->_pluginComplexTextInputState = pluginComplexTextInputState;
if (_data->_pluginComplexTextInputState != PluginComplexTextInputDisabled)
return;
// Send back an empty string to the plug-in. This will disable text input.
_data->_page->sendComplexTextInputToPlugin(_data->_pluginComplexTextInputIdentifier, String());
}
typedef HashMap<SEL, String> SelectorNameMap;
// Map selectors into Editor command names.
// This is not needed for any selectors that have the same name as the Editor command.
static const SelectorNameMap* createSelectorExceptionMap()
{
SelectorNameMap* map = new HashMap<SEL, String>;
map->add(@selector(insertNewlineIgnoringFieldEditor:), "InsertNewline");
map->add(@selector(insertParagraphSeparator:), "InsertNewline");
map->add(@selector(insertTabIgnoringFieldEditor:), "InsertTab");
map->add(@selector(pageDown:), "MovePageDown");
map->add(@selector(pageDownAndModifySelection:), "MovePageDownAndModifySelection");
map->add(@selector(pageUp:), "MovePageUp");
map->add(@selector(pageUpAndModifySelection:), "MovePageUpAndModifySelection");
map->add(@selector(scrollPageDown:), "ScrollPageForward");
map->add(@selector(scrollPageUp:), "ScrollPageBackward");
return map;
}
static String commandNameForSelector(SEL selector)
{
// Check the exception map first.
static const SelectorNameMap* exceptionMap = createSelectorExceptionMap();
SelectorNameMap::const_iterator it = exceptionMap->find(selector);
if (it != exceptionMap->end())
return it->value;
// Remove the trailing colon.
// No need to capitalize the command name since Editor command names are
// not case sensitive.
const char* selectorName = sel_getName(selector);
size_t selectorNameLength = strlen(selectorName);
if (selectorNameLength < 2 || selectorName[selectorNameLength - 1] != ':')
return String();
return String(selectorName, selectorNameLength - 1);
}
// Editing commands
#define WEBCORE_COMMAND(command) - (void)command:(id)sender { _data->_page->executeEditCommand(commandNameForSelector(_cmd)); }
WEBCORE_COMMAND(alignCenter)
WEBCORE_COMMAND(alignJustified)
WEBCORE_COMMAND(alignLeft)
WEBCORE_COMMAND(alignRight)
WEBCORE_COMMAND(copy)
WEBCORE_COMMAND(cut)
WEBCORE_COMMAND(delete)
WEBCORE_COMMAND(deleteBackward)
WEBCORE_COMMAND(deleteBackwardByDecomposingPreviousCharacter)
WEBCORE_COMMAND(deleteForward)
WEBCORE_COMMAND(deleteToBeginningOfLine)
WEBCORE_COMMAND(deleteToBeginningOfParagraph)
WEBCORE_COMMAND(deleteToEndOfLine)
WEBCORE_COMMAND(deleteToEndOfParagraph)
WEBCORE_COMMAND(deleteToMark)
WEBCORE_COMMAND(deleteWordBackward)
WEBCORE_COMMAND(deleteWordForward)
WEBCORE_COMMAND(ignoreSpelling)
WEBCORE_COMMAND(indent)
WEBCORE_COMMAND(insertBacktab)
WEBCORE_COMMAND(insertLineBreak)
WEBCORE_COMMAND(insertNewline)
WEBCORE_COMMAND(insertNewlineIgnoringFieldEditor)
WEBCORE_COMMAND(insertParagraphSeparator)
WEBCORE_COMMAND(insertTab)
WEBCORE_COMMAND(insertTabIgnoringFieldEditor)
WEBCORE_COMMAND(makeTextWritingDirectionLeftToRight)
WEBCORE_COMMAND(makeTextWritingDirectionNatural)
WEBCORE_COMMAND(makeTextWritingDirectionRightToLeft)
WEBCORE_COMMAND(moveBackward)
WEBCORE_COMMAND(moveBackwardAndModifySelection)
WEBCORE_COMMAND(moveDown)
WEBCORE_COMMAND(moveDownAndModifySelection)
WEBCORE_COMMAND(moveForward)
WEBCORE_COMMAND(moveForwardAndModifySelection)
WEBCORE_COMMAND(moveLeft)
WEBCORE_COMMAND(moveLeftAndModifySelection)
WEBCORE_COMMAND(moveParagraphBackwardAndModifySelection)
WEBCORE_COMMAND(moveParagraphForwardAndModifySelection)
WEBCORE_COMMAND(moveRight)
WEBCORE_COMMAND(moveRightAndModifySelection)
WEBCORE_COMMAND(moveToBeginningOfDocument)
WEBCORE_COMMAND(moveToBeginningOfDocumentAndModifySelection)
WEBCORE_COMMAND(moveToBeginningOfLine)
WEBCORE_COMMAND(moveToBeginningOfLineAndModifySelection)
WEBCORE_COMMAND(moveToBeginningOfParagraph)
WEBCORE_COMMAND(moveToBeginningOfParagraphAndModifySelection)
WEBCORE_COMMAND(moveToBeginningOfSentence)
WEBCORE_COMMAND(moveToBeginningOfSentenceAndModifySelection)
WEBCORE_COMMAND(moveToEndOfDocument)
WEBCORE_COMMAND(moveToEndOfDocumentAndModifySelection)
WEBCORE_COMMAND(moveToEndOfLine)
WEBCORE_COMMAND(moveToEndOfLineAndModifySelection)
WEBCORE_COMMAND(moveToEndOfParagraph)
WEBCORE_COMMAND(moveToEndOfParagraphAndModifySelection)
WEBCORE_COMMAND(moveToEndOfSentence)
WEBCORE_COMMAND(moveToEndOfSentenceAndModifySelection)
WEBCORE_COMMAND(moveToLeftEndOfLine)
WEBCORE_COMMAND(moveToLeftEndOfLineAndModifySelection)
WEBCORE_COMMAND(moveToRightEndOfLine)
WEBCORE_COMMAND(moveToRightEndOfLineAndModifySelection)
WEBCORE_COMMAND(moveUp)
WEBCORE_COMMAND(moveUpAndModifySelection)
WEBCORE_COMMAND(moveWordBackward)
WEBCORE_COMMAND(moveWordBackwardAndModifySelection)
WEBCORE_COMMAND(moveWordForward)
WEBCORE_COMMAND(moveWordForwardAndModifySelection)
WEBCORE_COMMAND(moveWordLeft)
WEBCORE_COMMAND(moveWordLeftAndModifySelection)
WEBCORE_COMMAND(moveWordRight)
WEBCORE_COMMAND(moveWordRightAndModifySelection)
WEBCORE_COMMAND(outdent)
WEBCORE_COMMAND(pageDown)
WEBCORE_COMMAND(pageDownAndModifySelection)
WEBCORE_COMMAND(pageUp)
WEBCORE_COMMAND(pageUpAndModifySelection)
WEBCORE_COMMAND(paste)
WEBCORE_COMMAND(pasteAsPlainText)
WEBCORE_COMMAND(scrollPageDown)
WEBCORE_COMMAND(scrollPageUp)
WEBCORE_COMMAND(scrollLineDown)
WEBCORE_COMMAND(scrollLineUp)
WEBCORE_COMMAND(scrollToBeginningOfDocument)
WEBCORE_COMMAND(scrollToEndOfDocument)
WEBCORE_COMMAND(selectAll)
WEBCORE_COMMAND(selectLine)
WEBCORE_COMMAND(selectParagraph)
WEBCORE_COMMAND(selectSentence)
WEBCORE_COMMAND(selectToMark)
WEBCORE_COMMAND(selectWord)
WEBCORE_COMMAND(setMark)
WEBCORE_COMMAND(subscript)
WEBCORE_COMMAND(superscript)
WEBCORE_COMMAND(swapWithMark)
WEBCORE_COMMAND(takeFindStringFromSelection)
WEBCORE_COMMAND(transpose)
WEBCORE_COMMAND(underline)
WEBCORE_COMMAND(unscript)
WEBCORE_COMMAND(yank)
WEBCORE_COMMAND(yankAndSelect)
#undef WEBCORE_COMMAND
// This method is needed to support Mac OS X services.
- (BOOL)writeSelectionToPasteboard:(NSPasteboard *)pasteboard types:(NSArray *)types
{
size_t numTypes = [types count];
[pasteboard declareTypes:types owner:nil];
for (size_t i = 0; i < numTypes; ++i) {
if ([[types objectAtIndex:i] isEqualTo:NSStringPboardType])
[pasteboard setString:_data->_page->stringSelectionForPasteboard() forType:NSStringPboardType];
else {
RefPtr<SharedBuffer> buffer = _data->_page->dataSelectionForPasteboard([types objectAtIndex:i]);
[pasteboard setData:buffer ? buffer->createNSData().get() : nil forType:[types objectAtIndex:i]];
}
}
return YES;
}
- (void)centerSelectionInVisibleArea:(id)sender
{
_data->_page->centerSelectionInVisibleArea();
}
// This method is needed to support Mac OS X services.
- (id)validRequestorForSendType:(NSString *)sendType returnType:(NSString *)returnType
{
EditorState editorState = _data->_page->editorState();
BOOL isValidSendType = NO;
if (sendType && !editorState.selectionIsNone) {
if (editorState.isInPlugin)
isValidSendType = [sendType isEqualToString:NSStringPboardType];
else
isValidSendType = [PasteboardTypes::forSelection() containsObject:sendType];
}
BOOL isValidReturnType = NO;
if (!returnType)
isValidReturnType = YES;
else if ([PasteboardTypes::forEditing() containsObject:returnType] && editorState.isContentEditable) {
// We can insert strings in any editable context. We can insert other types, like images, only in rich edit contexts.
isValidReturnType = editorState.isContentRichlyEditable || [returnType isEqualToString:NSStringPboardType];
}
if (isValidSendType && isValidReturnType)
return self;
return [[self nextResponder] validRequestorForSendType:sendType returnType:returnType];
}
// This method is needed to support Mac OS X services.
- (BOOL)readSelectionFromPasteboard:(NSPasteboard *)pasteboard
{
return _data->_page->readSelectionFromPasteboard([pasteboard name]);
}
/*
When possible, editing-related methods should be implemented in WebCore with the
EditorCommand mechanism and invoked via WEBCORE_COMMAND, rather than implementing
individual methods here with Mac-specific code.
Editing-related methods still unimplemented that are implemented in WebKit1:
- (void)capitalizeWord:(id)sender;
- (void)changeFont:(id)sender;
- (void)complete:(id)sender;
- (void)copyFont:(id)sender;
- (void)lowercaseWord:(id)sender;
- (void)makeBaseWritingDirectionLeftToRight:(id)sender;
- (void)makeBaseWritingDirectionNatural:(id)sender;
- (void)makeBaseWritingDirectionRightToLeft:(id)sender;
- (void)pasteFont:(id)sender;
- (void)scrollLineDown:(id)sender;
- (void)scrollLineUp:(id)sender;
- (void)showGuessPanel:(id)sender;
- (void)uppercaseWord:(id)sender;
Some other editing-related methods still unimplemented:
- (void)changeCaseOfLetter:(id)sender;
- (void)copyRuler:(id)sender;
- (void)insertContainerBreak:(id)sender;
- (void)insertDoubleQuoteIgnoringSubstitution:(id)sender;
- (void)insertSingleQuoteIgnoringSubstitution:(id)sender;
- (void)pasteRuler:(id)sender;
- (void)toggleRuler:(id)sender;
- (void)transposeWords:(id)sender;
*/
// Menu items validation
static NSMenuItem *menuItem(id <NSValidatedUserInterfaceItem> item)
{
if (![(NSObject *)item isKindOfClass:[NSMenuItem class]])
return nil;
return (NSMenuItem *)item;
}
static NSToolbarItem *toolbarItem(id <NSValidatedUserInterfaceItem> item)
{
if (![(NSObject *)item isKindOfClass:[NSToolbarItem class]])
return nil;
return (NSToolbarItem *)item;
}
static void validateCommandCallback(WKStringRef commandName, bool isEnabled, int32_t state, WKErrorRef error, void* context)
{
// If the process exits before the command can be validated, we'll be called back with an error.
if (error)
return;
WKView* wkView = static_cast<WKView*>(context);
ASSERT(wkView);
[wkView _setUserInterfaceItemState:nsStringFromWebCoreString(toImpl(commandName)->string()) enabled:isEnabled state:state];
}
- (BOOL)validateUserInterfaceItem:(id <NSValidatedUserInterfaceItem>)item
{
SEL action = [item action];
if (action == @selector(showGuessPanel:)) {
if (NSMenuItem *menuItem = ::menuItem(item))
[menuItem setTitle:contextMenuItemTagShowSpellingPanel(![[[NSSpellChecker sharedSpellChecker] spellingPanel] isVisible])];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(checkSpelling:) || action == @selector(changeSpelling:))
return _data->_page->editorState().isContentEditable;
if (action == @selector(toggleContinuousSpellChecking:)) {
bool enabled = TextChecker::isContinuousSpellCheckingAllowed();
bool checked = enabled && TextChecker::state().isContinuousSpellCheckingEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return enabled;
}
if (action == @selector(toggleGrammarChecking:)) {
bool checked = TextChecker::state().isGrammarCheckingEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return YES;
}
if (action == @selector(toggleAutomaticSpellingCorrection:)) {
bool checked = TextChecker::state().isAutomaticSpellingCorrectionEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(orderFrontSubstitutionsPanel:)) {
if (NSMenuItem *menuItem = ::menuItem(item))
[menuItem setTitle:contextMenuItemTagShowSubstitutions(![[[NSSpellChecker sharedSpellChecker] substitutionsPanel] isVisible])];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(toggleSmartInsertDelete:)) {
bool checked = _data->_page->isSmartInsertDeleteEnabled();
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(toggleAutomaticQuoteSubstitution:)) {
bool checked = TextChecker::state().isAutomaticQuoteSubstitutionEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(toggleAutomaticDashSubstitution:)) {
bool checked = TextChecker::state().isAutomaticDashSubstitutionEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(toggleAutomaticLinkDetection:)) {
bool checked = TextChecker::state().isAutomaticLinkDetectionEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(toggleAutomaticTextReplacement:)) {
bool checked = TextChecker::state().isAutomaticTextReplacementEnabled;
[menuItem(item) setState:checked ? NSOnState : NSOffState];
return _data->_page->editorState().isContentEditable;
}
if (action == @selector(uppercaseWord:) || action == @selector(lowercaseWord:) || action == @selector(capitalizeWord:))
return _data->_page->editorState().selectionIsRange && _data->_page->editorState().isContentEditable;
if (action == @selector(stopSpeaking:))
return [NSApp isSpeaking];
// The centerSelectionInVisibleArea: selector is enabled if there's a selection range or if there's an insertion point in an editable area.
if (action == @selector(centerSelectionInVisibleArea:))
return _data->_page->editorState().selectionIsRange || (_data->_page->editorState().isContentEditable && !_data->_page->editorState().selectionIsNone);
// Next, handle editor commands. Start by returning YES for anything that is not an editor command.
// Returning YES is the default thing to do in an AppKit validate method for any selector that is not recognized.
String commandName = commandNameForSelector([item action]);
if (!Editor::commandIsSupportedFromMenuOrKeyBinding(commandName))
return YES;
// Add this item to the vector of items for a given command that are awaiting validation.
ValidationMap::AddResult addResult = _data->_validationMap.add(commandName, ValidationVector());
addResult.iterator->value.append(item);
if (addResult.isNewEntry) {
// If we are not already awaiting validation for this command, start the asynchronous validation process.
// FIXME: Theoretically, there is a race here; when we get the answer it might be old, from a previous time
// we asked for the same command; there is no guarantee the answer is still valid.
_data->_page->validateCommand(commandName, ValidateCommandCallback::create(self, validateCommandCallback));
}
// Treat as enabled until we get the result back from the web process and _setUserInterfaceItemState is called.
// FIXME <rdar://problem/8803459>: This means disabled items will flash enabled at first for a moment.
// But returning NO here would be worse; that would make keyboard commands such as command-C fail.
return YES;
}
static void speakString(WKStringRef string, WKErrorRef error, void*)
{
if (error)
return;
if (!string)
return;
NSString *convertedString = toImpl(string)->string();
[NSApp speakString:convertedString];
}
- (IBAction)startSpeaking:(id)sender
{
_data->_page->getSelectionOrContentsAsString(StringCallback::create(0, speakString));
}
- (IBAction)stopSpeaking:(id)sender
{
[NSApp stopSpeaking:sender];
}
- (IBAction)showGuessPanel:(id)sender
{
NSSpellChecker *checker = [NSSpellChecker sharedSpellChecker];
if (!checker) {
LOG_ERROR("No NSSpellChecker");
return;
}
NSPanel *spellingPanel = [checker spellingPanel];
if ([spellingPanel isVisible]) {
[spellingPanel orderOut:sender];
return;
}
_data->_page->advanceToNextMisspelling(true);
[spellingPanel orderFront:sender];
}
- (IBAction)checkSpelling:(id)sender
{
_data->_page->advanceToNextMisspelling(false);
}
- (void)changeSpelling:(id)sender
{
NSString *word = [[sender selectedCell] stringValue];
_data->_page->changeSpellingToWord(word);
}
- (IBAction)toggleContinuousSpellChecking:(id)sender
{
bool spellCheckingEnabled = !TextChecker::state().isContinuousSpellCheckingEnabled;
TextChecker::setContinuousSpellCheckingEnabled(spellCheckingEnabled);
_data->_page->process().updateTextCheckerState();
}
- (BOOL)isGrammarCheckingEnabled
{
return TextChecker::state().isGrammarCheckingEnabled;
}
- (void)setGrammarCheckingEnabled:(BOOL)flag
{
if (static_cast<bool>(flag) == TextChecker::state().isGrammarCheckingEnabled)
return;
TextChecker::setGrammarCheckingEnabled(flag);
_data->_page->process().updateTextCheckerState();
}
- (IBAction)toggleGrammarChecking:(id)sender
{
bool grammarCheckingEnabled = !TextChecker::state().isGrammarCheckingEnabled;
TextChecker::setGrammarCheckingEnabled(grammarCheckingEnabled);
_data->_page->process().updateTextCheckerState();
}
- (IBAction)toggleAutomaticSpellingCorrection:(id)sender
{
TextChecker::setAutomaticSpellingCorrectionEnabled(!TextChecker::state().isAutomaticSpellingCorrectionEnabled);
_data->_page->process().updateTextCheckerState();
}
- (void)orderFrontSubstitutionsPanel:(id)sender
{
NSSpellChecker *checker = [NSSpellChecker sharedSpellChecker];
if (!checker) {
LOG_ERROR("No NSSpellChecker");
return;
}
NSPanel *substitutionsPanel = [checker substitutionsPanel];
if ([substitutionsPanel isVisible]) {
[substitutionsPanel orderOut:sender];
return;
}
[substitutionsPanel orderFront:sender];
}
- (IBAction)toggleSmartInsertDelete:(id)sender
{
_data->_page->setSmartInsertDeleteEnabled(!_data->_page->isSmartInsertDeleteEnabled());
}
- (BOOL)isAutomaticQuoteSubstitutionEnabled
{
return TextChecker::state().isAutomaticQuoteSubstitutionEnabled;
}
- (void)setAutomaticQuoteSubstitutionEnabled:(BOOL)flag
{
if (static_cast<bool>(flag) == TextChecker::state().isAutomaticQuoteSubstitutionEnabled)
return;
TextChecker::setAutomaticQuoteSubstitutionEnabled(flag);
_data->_page->process().updateTextCheckerState();
}
- (void)toggleAutomaticQuoteSubstitution:(id)sender
{
TextChecker::setAutomaticQuoteSubstitutionEnabled(!TextChecker::state().isAutomaticQuoteSubstitutionEnabled);
_data->_page->process().updateTextCheckerState();
}
- (BOOL)isAutomaticDashSubstitutionEnabled
{
return TextChecker::state().isAutomaticDashSubstitutionEnabled;
}
- (void)setAutomaticDashSubstitutionEnabled:(BOOL)flag
{
if (static_cast<bool>(flag) == TextChecker::state().isAutomaticDashSubstitutionEnabled)
return;
TextChecker::setAutomaticDashSubstitutionEnabled(flag);
_data->_page->process().updateTextCheckerState();
}
- (void)toggleAutomaticDashSubstitution:(id)sender
{
TextChecker::setAutomaticDashSubstitutionEnabled(!TextChecker::state().isAutomaticDashSubstitutionEnabled);
_data->_page->process().updateTextCheckerState();
}
- (BOOL)isAutomaticLinkDetectionEnabled
{
return TextChecker::state().isAutomaticLinkDetectionEnabled;
}
- (void)setAutomaticLinkDetectionEnabled:(BOOL)flag
{
if (static_cast<bool>(flag) == TextChecker::state().isAutomaticLinkDetectionEnabled)
return;
TextChecker::setAutomaticLinkDetectionEnabled(flag);
_data->_page->process().updateTextCheckerState();
}
- (void)toggleAutomaticLinkDetection:(id)sender
{
TextChecker::setAutomaticLinkDetectionEnabled(!TextChecker::state().isAutomaticLinkDetectionEnabled);
_data->_page->process().updateTextCheckerState();
}
- (BOOL)isAutomaticTextReplacementEnabled
{
return TextChecker::state().isAutomaticTextReplacementEnabled;
}
- (void)setAutomaticTextReplacementEnabled:(BOOL)flag
{
if (static_cast<bool>(flag) == TextChecker::state().isAutomaticTextReplacementEnabled)
return;
TextChecker::setAutomaticTextReplacementEnabled(flag);
_data->_page->process().updateTextCheckerState();
}
- (void)toggleAutomaticTextReplacement:(id)sender
{
TextChecker::setAutomaticTextReplacementEnabled(!TextChecker::state().isAutomaticTextReplacementEnabled);
_data->_page->process().updateTextCheckerState();
}
- (void)uppercaseWord:(id)sender
{
_data->_page->uppercaseWord();
}
- (void)lowercaseWord:(id)sender
{
_data->_page->lowercaseWord();
}
- (void)capitalizeWord:(id)sender
{
_data->_page->capitalizeWord();
}
- (void)displayIfNeeded
{
// FIXME: We should remove this code when <rdar://problem/9362085> is resolved. In the meantime,
// it is necessary to disable scren updates so we get a chance to redraw the corners before this
// display is visible.
NSWindow *window = [self window];
BOOL shouldMaskWindow = window && !NSIsEmptyRect(_data->_windowBottomCornerIntersectionRect);
if (shouldMaskWindow)
NSDisableScreenUpdates();
[super displayIfNeeded];
if (shouldMaskWindow) {
[window _maskRoundedBottomCorners:_data->_windowBottomCornerIntersectionRect];
NSEnableScreenUpdates();
_data->_windowBottomCornerIntersectionRect = NSZeroRect;
}
}
// Events
// Override this so that AppKit will send us arrow keys as key down events so we can
// support them via the key bindings mechanism.
- (BOOL)_wantsKeyDownForEvent:(NSEvent *)event
{
return YES;
}
- (void)_setMouseDownEvent:(NSEvent *)event
{
ASSERT(!event || [event type] == NSLeftMouseDown || [event type] == NSRightMouseDown || [event type] == NSOtherMouseDown);
if (event == _data->_mouseDownEvent)
return;
[_data->_mouseDownEvent release];
_data->_mouseDownEvent = [event retain];
}
#define NATIVE_MOUSE_EVENT_HANDLER(Selector) \
- (void)Selector:(NSEvent *)theEvent \
{ \
if ([[self inputContext] handleEvent:theEvent]) { \
LOG(TextInput, "%s was handled by text input context", String(#Selector).substring(0, String(#Selector).find("Internal")).ascii().data()); \
return; \
} \
NativeWebMouseEvent webEvent(theEvent, self); \
_data->_page->handleMouseEvent(webEvent); \
}
NATIVE_MOUSE_EVENT_HANDLER(mouseEntered)
NATIVE_MOUSE_EVENT_HANDLER(mouseExited)
NATIVE_MOUSE_EVENT_HANDLER(mouseMovedInternal)
NATIVE_MOUSE_EVENT_HANDLER(mouseDownInternal)
NATIVE_MOUSE_EVENT_HANDLER(mouseUpInternal)
NATIVE_MOUSE_EVENT_HANDLER(mouseDraggedInternal)
NATIVE_MOUSE_EVENT_HANDLER(otherMouseDown)
NATIVE_MOUSE_EVENT_HANDLER(otherMouseDragged)
NATIVE_MOUSE_EVENT_HANDLER(otherMouseMoved)
NATIVE_MOUSE_EVENT_HANDLER(otherMouseUp)
NATIVE_MOUSE_EVENT_HANDLER(rightMouseDown)
NATIVE_MOUSE_EVENT_HANDLER(rightMouseDragged)
NATIVE_MOUSE_EVENT_HANDLER(rightMouseUp)
#undef NATIVE_MOUSE_EVENT_HANDLER
#define NATIVE_EVENT_HANDLER(Selector, Type) \
- (void)Selector:(NSEvent *)theEvent \
{ \
NativeWeb##Type##Event webEvent = NativeWeb##Type##Event(theEvent, self); \
_data->_page->handle##Type##Event(webEvent); \
}
NATIVE_EVENT_HANDLER(scrollWheel, Wheel)
#undef NATIVE_EVENT_HANDLER
- (void)mouseMoved:(NSEvent *)event
{
// When a view is first responder, it gets mouse moved events even when the mouse is outside its visible rect.
if (self == [[self window] firstResponder] && !NSPointInRect([self convertPoint:[event locationInWindow] fromView:nil], [self visibleRect]))
return;
[self mouseMovedInternal:event];
}
- (void)mouseDown:(NSEvent *)event
{
[self _setMouseDownEvent:event];
_data->_ignoringMouseDraggedEvents = NO;
[self mouseDownInternal:event];
}
- (void)mouseUp:(NSEvent *)event
{
[self _setMouseDownEvent:nil];
[self mouseUpInternal:event];
}
- (void)mouseDragged:(NSEvent *)event
{
if (_data->_ignoringMouseDraggedEvents)
return;
[self mouseDraggedInternal:event];
}
- (BOOL)acceptsFirstMouse:(NSEvent *)event
{
// There's a chance that responding to this event will run a nested event loop, and
// fetching a new event might release the old one. Retaining and then autoreleasing
// the current event prevents that from causing a problem inside WebKit or AppKit code.
[[event retain] autorelease];
if (![self hitTest:[event locationInWindow]])
return NO;
[self _setMouseDownEvent:event];
bool result = _data->_page->acceptsFirstMouse([event eventNumber], WebEventFactory::createWebMouseEvent(event, self));
[self _setMouseDownEvent:nil];
return result;
}
- (BOOL)shouldDelayWindowOrderingForEvent:(NSEvent *)event
{
// If this is the active window or we don't have a range selection, there is no need to perform additional checks
// and we can avoid making a synchronous call to the WebProcess.
if ([[self window] isKeyWindow] || _data->_page->editorState().selectionIsNone || !_data->_page->editorState().selectionIsRange)
return NO;
// There's a chance that responding to this event will run a nested event loop, and
// fetching a new event might release the old one. Retaining and then autoreleasing
// the current event prevents that from causing a problem inside WebKit or AppKit code.
[[event retain] autorelease];
if (![self hitTest:[event locationInWindow]])
return NO;
[self _setMouseDownEvent:event];
bool result = _data->_page->shouldDelayWindowOrderingForEvent(WebEventFactory::createWebMouseEvent(event, self));
[self _setMouseDownEvent:nil];
return result;
}
- (void)doCommandBySelector:(SEL)selector
{
LOG(TextInput, "doCommandBySelector:\"%s\"", sel_getName(selector));
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (parameters)
parameters->consumedByIM = false;
// As in insertText:replacementRange:, we assume that the call comes from an input method if there is marked text.
bool isFromInputMethod = _data->_page->editorState().hasComposition;
if (parameters && !isFromInputMethod) {
KeypressCommand command(NSStringFromSelector(selector));
parameters->commands->append(command);
_data->_page->registerKeypressCommandName(command.commandName);
} else {
// FIXME: Send the command to Editor synchronously and only send it along the
// responder chain if it's a selector that does not correspond to an editing command.
[super doCommandBySelector:selector];
}
}
- (void)insertText:(id)string
{
// Unlike and NSTextInputClient variant with replacementRange, this NSResponder method is called when there is no input context,
// so text input processing isn't performed. We are not going to actually insert any text in that case, but saving an insertText
// command ensures that a keypress event is dispatched as appropriate.
[self insertText:string replacementRange:NSMakeRange(NSNotFound, 0)];
}
- (void)insertText:(id)string replacementRange:(NSRange)replacementRange
{
BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]];
ASSERT(isAttributedString || [string isKindOfClass:[NSString class]]);
if (replacementRange.location != NSNotFound)
LOG(TextInput, "insertText:\"%@\" replacementRange:(%u, %u)", isAttributedString ? [string string] : string, replacementRange.location, replacementRange.length);
else
LOG(TextInput, "insertText:\"%@\"", isAttributedString ? [string string] : string);
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (parameters)
parameters->consumedByIM = false;
NSString *text;
bool isFromInputMethod = _data->_page->editorState().hasComposition;
Vector<TextAlternativeWithRange> dictationAlternatives;
if (isAttributedString) {
#if USE(DICTATION_ALTERNATIVES)
collectDictationTextAlternatives(string, dictationAlternatives);
#endif
// FIXME: We ignore most attributes from the string, so for example inserting from Character Palette loses font and glyph variation data.
text = [string string];
} else
text = string;
// insertText can be called for several reasons:
// - If it's from normal key event processing (including key bindings), we may need to save the action to perform it later.
// - If it's from an input method, then we should go ahead and insert the text now. We assume it's from the input method if we have marked text.
// FIXME: In theory, this could be wrong for some input methods, so we should try to find another way to determine if the call is from the input method.
// - If it's sent outside of keyboard event processing (e.g. from Character Viewer, or when confirming an inline input area with a mouse),
// then we also execute it immediately, as there will be no other chance.
if (parameters && !isFromInputMethod) {
// FIXME: Handle replacementRange in this case, too. It's known to occur in practice when canceling Press and Hold (see <rdar://11940670>).
ASSERT(replacementRange.location == NSNotFound);
KeypressCommand command("insertText:", text);
parameters->commands->append(command);
_data->_page->registerKeypressCommandName(command.commandName);
return;
}
String eventText = text;
eventText.replace(NSBackTabCharacter, NSTabCharacter); // same thing is done in KeyEventMac.mm in WebCore
bool eventHandled;
if (!dictationAlternatives.isEmpty())
eventHandled = _data->_page->insertDictatedText(eventText, replacementRange.location, NSMaxRange(replacementRange), dictationAlternatives);
else
eventHandled = _data->_page->insertText(eventText, replacementRange.location, NSMaxRange(replacementRange));
if (parameters)
parameters->eventInterpretationHadSideEffects |= eventHandled;
}
- (BOOL)_handleStyleKeyEquivalent:(NSEvent *)event
{
if (!_data->_page->editorState().isContentEditable)
return NO;
if (([event modifierFlags] & NSDeviceIndependentModifierFlagsMask) != NSCommandKeyMask)
return NO;
// Here we special case cmd+b and cmd+i but not cmd+u, for historic reason.
// This should not be changed, since it could break some Mac applications that
// rely on this inherent behavior.
// See https://bugs.webkit.org/show_bug.cgi?id=24943
NSString *string = [event characters];
if ([string caseInsensitiveCompare:@"b"] == NSOrderedSame) {
_data->_page->executeEditCommand("ToggleBold");
return YES;
}
if ([string caseInsensitiveCompare:@"i"] == NSOrderedSame) {
_data->_page->executeEditCommand("ToggleItalic");
return YES;
}
return NO;
}
- (BOOL)performKeyEquivalent:(NSEvent *)event
{
// There's a chance that responding to this event will run a nested event loop, and
// fetching a new event might release the old one. Retaining and then autoreleasing
// the current event prevents that from causing a problem inside WebKit or AppKit code.
[[event retain] autorelease];
BOOL eventWasSentToWebCore = (_data->_keyDownEventBeingResent == event);
if (!eventWasSentToWebCore)
[self _disableComplexTextInputIfNecessary];
// Pass key combos through WebCore if there is a key binding available for
// this event. This lets web pages have a crack at intercepting key-modified keypresses.
// But don't do it if we have already handled the event.
// Pressing Esc results in a fake event being sent - don't pass it to WebCore.
if (!eventWasSentToWebCore && event == [NSApp currentEvent] && self == [[self window] firstResponder]) {
_data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(event, self));
return YES;
}
return [self _handleStyleKeyEquivalent:event] || [super performKeyEquivalent:event];
}
- (void)keyUp:(NSEvent *)theEvent
{
LOG(TextInput, "keyUp:%p %@", theEvent, theEvent);
_data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(theEvent, self));
}
- (void)_disableComplexTextInputIfNecessary
{
if (!_data->_pluginComplexTextInputIdentifier)
return;
if (_data->_pluginComplexTextInputState != PluginComplexTextInputEnabled)
return;
// Check if the text input window has been dismissed.
if (![[WKTextInputWindowController sharedTextInputWindowController] hasMarkedText])
[self _setPluginComplexTextInputState:PluginComplexTextInputDisabled];
}
- (BOOL)_handlePluginComplexTextInputKeyDown:(NSEvent *)event
{
ASSERT(_data->_pluginComplexTextInputIdentifier);
ASSERT(_data->_pluginComplexTextInputState != PluginComplexTextInputDisabled);
BOOL usingLegacyCocoaTextInput = _data->_pluginComplexTextInputState == PluginComplexTextInputEnabledLegacy;
NSString *string = nil;
BOOL didHandleEvent = [[WKTextInputWindowController sharedTextInputWindowController] interpretKeyEvent:event usingLegacyCocoaTextInput:usingLegacyCocoaTextInput string:&string];
if (string) {
_data->_page->sendComplexTextInputToPlugin(_data->_pluginComplexTextInputIdentifier, string);
if (!usingLegacyCocoaTextInput)
_data->_pluginComplexTextInputState = PluginComplexTextInputDisabled;
}
return didHandleEvent;
}
- (BOOL)_tryHandlePluginComplexTextInputKeyDown:(NSEvent *)event
{
if (!_data->_pluginComplexTextInputIdentifier || _data->_pluginComplexTextInputState == PluginComplexTextInputDisabled)
return NO;
// Check if the text input window has been dismissed and let the plug-in process know.
// This is only valid with the updated Cocoa text input spec.
[self _disableComplexTextInputIfNecessary];
// Try feeding the keyboard event directly to the plug-in.
if (_data->_pluginComplexTextInputState == PluginComplexTextInputEnabledLegacy)
return [self _handlePluginComplexTextInputKeyDown:event];
return NO;
}
- (void)keyDown:(NSEvent *)theEvent
{
LOG(TextInput, "keyDown:%p %@%s", theEvent, theEvent, (theEvent == _data->_keyDownEventBeingResent) ? " (re-sent)" : "");
// There's a chance that responding to this event will run a nested event loop, and
// fetching a new event might release the old one. Retaining and then autoreleasing
// the current event prevents that from causing a problem inside WebKit or AppKit code.
[[theEvent retain] autorelease];
if ([self _tryHandlePluginComplexTextInputKeyDown:theEvent]) {
LOG(TextInput, "...handled by plug-in");
return;
}
// We could be receiving a key down from AppKit if we have re-sent an event
// that maps to an action that is currently unavailable (for example a copy when
// there is no range selection).
// If this is the case we should ignore the key down.
if (_data->_keyDownEventBeingResent == theEvent) {
[super keyDown:theEvent];
return;
}
_data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(theEvent, self));
}
- (void)flagsChanged:(NSEvent *)theEvent
{
LOG(TextInput, "flagsChanged:%p %@", theEvent, theEvent);
// There's a chance that responding to this event will run a nested event loop, and
// fetching a new event might release the old one. Retaining and then autoreleasing
// the current event prevents that from causing a problem inside WebKit or AppKit code.
[[theEvent retain] autorelease];
unsigned short keyCode = [theEvent keyCode];
// Don't make an event from the num lock and function keys
if (!keyCode || keyCode == 10 || keyCode == 63)
return;
_data->_page->handleKeyboardEvent(NativeWebKeyboardEvent(theEvent, self));
}
- (void)_executeSavedKeypressCommands
{
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (!parameters || parameters->commands->isEmpty())
return;
// We could be called again if the execution of one command triggers a call to selectedRange.
// In this case, the state is up to date, and we don't need to execute any more saved commands to return a result.
if (parameters->executingSavedKeypressCommands)
return;
LOG(TextInput, "Executing %u saved keypress commands...", parameters->commands->size());
parameters->executingSavedKeypressCommands = true;
parameters->eventInterpretationHadSideEffects |= _data->_page->executeKeypressCommands(*parameters->commands);
parameters->commands->clear();
parameters->executingSavedKeypressCommands = false;
LOG(TextInput, "...done executing saved keypress commands.");
}
- (NSTextInputContext *)inputContext
{
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (_data->_pluginComplexTextInputIdentifier && !parameters)
return [[WKTextInputWindowController sharedTextInputWindowController] inputContext];
// Disable text input machinery when in non-editable content. An invisible inline input area affects performance, and can prevent Expose from working.
if (!_data->_page->editorState().isContentEditable)
return nil;
return [super inputContext];
}
- (NSRange)selectedRange
{
[self _executeSavedKeypressCommands];
uint64_t selectionStart;
uint64_t selectionLength;
_data->_page->getSelectedRange(selectionStart, selectionLength);
NSRange result = NSMakeRange(selectionStart, selectionLength);
if (result.location == NSNotFound)
LOG(TextInput, "selectedRange -> (NSNotFound, %u)", result.length);
else
LOG(TextInput, "selectedRange -> (%u, %u)", result.location, result.length);
return result;
}
- (BOOL)hasMarkedText
{
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
BOOL result;
if (parameters) {
result = _data->_page->editorState().hasComposition;
if (result) {
// A saved command can confirm a composition, but it cannot start a new one.
[self _executeSavedKeypressCommands];
result = _data->_page->editorState().hasComposition;
}
} else {
uint64_t location;
uint64_t length;
_data->_page->getMarkedRange(location, length);
result = location != NSNotFound;
}
LOG(TextInput, "hasMarkedText -> %u", result);
return result;
}
- (void)unmarkText
{
[self _executeSavedKeypressCommands];
LOG(TextInput, "unmarkText");
// Use pointer to get parameters passed to us by the caller of interpretKeyEvents.
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (parameters) {
parameters->eventInterpretationHadSideEffects = true;
parameters->consumedByIM = false;
}
_data->_page->confirmComposition();
}
- (NSArray *)validAttributesForMarkedText
{
static NSArray *validAttributes;
if (!validAttributes) {
validAttributes = [[NSArray alloc] initWithObjects:
NSUnderlineStyleAttributeName, NSUnderlineColorAttributeName,
NSMarkedClauseSegmentAttributeName,
#if USE(DICTATION_ALTERNATIVES)
NSTextAlternativesAttributeName,
#endif
nil];
// NSText also supports the following attributes, but it's
// hard to tell which are really required for text input to
// work well; I have not seen any input method make use of them yet.
// NSFontAttributeName, NSForegroundColorAttributeName,
// NSBackgroundColorAttributeName, NSLanguageAttributeName.
CFRetain(validAttributes);
}
LOG(TextInput, "validAttributesForMarkedText -> (...)");
return validAttributes;
}
static void extractUnderlines(NSAttributedString *string, Vector<CompositionUnderline>& result)
{
int length = [[string string] length];
int i = 0;
while (i < length) {
NSRange range;
NSDictionary *attrs = [string attributesAtIndex:i longestEffectiveRange:&range inRange:NSMakeRange(i, length - i)];
if (NSNumber *style = [attrs objectForKey:NSUnderlineStyleAttributeName]) {
Color color = Color::black;
if (NSColor *colorAttr = [attrs objectForKey:NSUnderlineColorAttributeName])
color = colorFromNSColor([colorAttr colorUsingColorSpaceName:NSDeviceRGBColorSpace]);
result.append(CompositionUnderline(range.location, NSMaxRange(range), color, [style intValue] > 1));
}
i = range.location + range.length;
}
}
- (void)setMarkedText:(id)string selectedRange:(NSRange)newSelRange replacementRange:(NSRange)replacementRange
{
[self _executeSavedKeypressCommands];
BOOL isAttributedString = [string isKindOfClass:[NSAttributedString class]];
ASSERT(isAttributedString || [string isKindOfClass:[NSString class]]);
LOG(TextInput, "setMarkedText:\"%@\" selectedRange:(%u, %u)", isAttributedString ? [string string] : string, newSelRange.location, newSelRange.length);
// Use pointer to get parameters passed to us by the caller of interpretKeyEvents.
WKViewInterpretKeyEventsParameters* parameters = _data->_interpretKeyEventsParameters;
if (parameters) {
parameters->eventInterpretationHadSideEffects = true;
parameters->consumedByIM = false;
}
Vector<CompositionUnderline> underlines;
NSString *text;
if (isAttributedString) {
// FIXME: We ignore most attributes from the string, so an input method cannot specify e.g. a font or a glyph variation.
text = [string string];
extractUnderlines(string, underlines);
} else
text = string;
if (_data->_page->editorState().isInPasswordField) {
// In password fields, we only allow ASCII dead keys, and don't allow inline input, matching NSSecureTextInputField.
// Allowing ASCII dead keys is necessary to enable full Roman input when using a Vietnamese keyboard.
ASSERT(!_data->_page->editorState().hasComposition);
[self _notifyInputContextAboutDiscardedComposition];
if ([text length] == 1 && [[text decomposedStringWithCanonicalMapping] characterAtIndex:0] < 0x80) {
_data->_page->insertText(text, replacementRange.location, NSMaxRange(replacementRange));
} else
NSBeep();
return;
}
_data->_page->setComposition(text, underlines, newSelRange.location, NSMaxRange(newSelRange), replacementRange.location, NSMaxRange(replacementRange));
}
- (NSRange)markedRange
{
[self _executeSavedKeypressCommands];
uint64_t location;
uint64_t length;
_data->_page->getMarkedRange(location, length);
LOG(TextInput, "markedRange -> (%u, %u)", location, length);
return NSMakeRange(location, length);
}
- (NSAttributedString *)attributedSubstringForProposedRange:(NSRange)nsRange actualRange:(NSRangePointer)actualRange
{
[self _executeSavedKeypressCommands];
if (!_data->_page->editorState().isContentEditable) {
LOG(TextInput, "attributedSubstringFromRange:(%u, %u) -> nil", nsRange.location, nsRange.length);
return nil;
}
if (_data->_page->editorState().isInPasswordField)
return nil;
AttributedString result;
_data->_page->getAttributedSubstringFromRange(nsRange.location, NSMaxRange(nsRange), result);
if (actualRange) {
*actualRange = nsRange;
actualRange->length = [result.string.get() length];
}
LOG(TextInput, "attributedSubstringFromRange:(%u, %u) -> \"%@\"", nsRange.location, nsRange.length, [result.string.get() string]);
return [[result.string.get() retain] autorelease];
}
- (NSUInteger)characterIndexForPoint:(NSPoint)thePoint
{
[self _executeSavedKeypressCommands];
NSWindow *window = [self window];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (window)
thePoint = [window convertScreenToBase:thePoint];
#pragma clang diagnostic pop
thePoint = [self convertPoint:thePoint fromView:nil]; // the point is relative to the main frame
uint64_t result = _data->_page->characterIndexForPoint(IntPoint(thePoint));
LOG(TextInput, "characterIndexForPoint:(%f, %f) -> %u", thePoint.x, thePoint.y, result);
return result;
}
- (NSRect)firstRectForCharacterRange:(NSRange)theRange actualRange:(NSRangePointer)actualRange
{
[self _executeSavedKeypressCommands];
// Just to match NSTextView's behavior. Regression tests cannot detect this;
// to reproduce, use a test application from http://bugs.webkit.org/show_bug.cgi?id=4682
// (type something; try ranges (1, -1) and (2, -1).
if ((theRange.location + theRange.length < theRange.location) && (theRange.location + theRange.length != 0))
theRange.length = 0;
NSRect resultRect = _data->_page->firstRectForCharacterRange(theRange.location, theRange.length);
resultRect = [self convertRect:resultRect toView:nil];
NSWindow *window = [self window];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
if (window)
resultRect.origin = [window convertBaseToScreen:resultRect.origin];
#pragma clang diagnostic pop
if (actualRange) {
// FIXME: Update actualRange to match the range of first rect.
*actualRange = theRange;
}
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);
return resultRect;
}
#if ENABLE(DRAG_SUPPORT)
- (void)draggedImage:(NSImage *)anImage endedAt:(NSPoint)aPoint operation:(NSDragOperation)operation
{
NSPoint windowImageLoc = [[self window] convertScreenToBase:aPoint];
NSPoint windowMouseLoc = windowImageLoc;
// Prevent queued mouseDragged events from coming after the drag and fake mouseUp event.
_data->_ignoringMouseDraggedEvents = YES;
_data->_page->dragEnded(IntPoint(windowMouseLoc), globalPoint(windowMouseLoc, [self window]), operation);
}
- (DragApplicationFlags)applicationFlags:(id <NSDraggingInfo>)draggingInfo
{
uint32_t flags = 0;
if ([NSApp modalWindow])
flags = DragApplicationIsModal;
if ([[self window] attachedSheet])
flags |= DragApplicationHasAttachedSheet;
if ([draggingInfo draggingSource] == self)
flags |= DragApplicationIsSource;
if ([[NSApp currentEvent] modifierFlags] & NSAlternateKeyMask)
flags |= DragApplicationIsCopyKeyDown;
return static_cast<DragApplicationFlags>(flags);
}
- (NSDragOperation)draggingEntered:(id <NSDraggingInfo>)draggingInfo
{
IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
_data->_page->resetDragOperation();
_data->_page->dragEntered(dragData, [[draggingInfo draggingPasteboard] name]);
return NSDragOperationCopy;
}
- (NSDragOperation)draggingUpdated:(id <NSDraggingInfo>)draggingInfo
{
IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
_data->_page->dragUpdated(dragData, [[draggingInfo draggingPasteboard] name]);
WebCore::DragSession dragSession = _data->_page->dragSession();
NSInteger numberOfValidItemsForDrop = dragSession.numberOfItemsToBeAccepted;
NSDraggingFormation draggingFormation = NSDraggingFormationNone;
if (dragSession.mouseIsOverFileInput && numberOfValidItemsForDrop > 0)
draggingFormation = NSDraggingFormationList;
if ([draggingInfo numberOfValidItemsForDrop] != numberOfValidItemsForDrop)
[draggingInfo setNumberOfValidItemsForDrop:numberOfValidItemsForDrop];
if ([draggingInfo draggingFormation] != draggingFormation)
[draggingInfo setDraggingFormation:draggingFormation];
return dragSession.operation;
}
- (void)draggingExited:(id <NSDraggingInfo>)draggingInfo
{
IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
_data->_page->dragExited(dragData, [[draggingInfo draggingPasteboard] name]);
_data->_page->resetDragOperation();
}
- (BOOL)prepareForDragOperation:(id <NSDraggingInfo>)draggingInfo
{
return YES;
}
// FIXME: This code is more or less copied from Pasteboard::getBestURL.
// It would be nice to be able to share the code somehow.
static bool maybeCreateSandboxExtensionFromPasteboard(NSPasteboard *pasteboard, SandboxExtension::Handle& sandboxExtensionHandle)
{
NSArray *types = [pasteboard types];
if (![types containsObject:NSFilenamesPboardType])
return false;
NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
if ([files count] != 1)
return false;
NSString *file = [files objectAtIndex:0];
BOOL isDirectory;
if (![[NSFileManager defaultManager] fileExistsAtPath:file isDirectory:&isDirectory])
return false;
if (isDirectory)
return false;
SandboxExtension::createHandle("/", SandboxExtension::ReadOnly, sandboxExtensionHandle);
return true;
}
static void createSandboxExtensionsForFileUpload(NSPasteboard *pasteboard, SandboxExtension::HandleArray& handles)
{
NSArray *types = [pasteboard types];
if (![types containsObject:NSFilenamesPboardType])
return;
NSArray *files = [pasteboard propertyListForType:NSFilenamesPboardType];
handles.allocate([files count]);
for (unsigned i = 0; i < [files count]; i++) {
NSString *file = [files objectAtIndex:i];
if (![[NSFileManager defaultManager] fileExistsAtPath:file])
continue;
SandboxExtension::Handle handle;
SandboxExtension::createHandle(file, SandboxExtension::ReadOnly, handles[i]);
}
}
- (BOOL)performDragOperation:(id <NSDraggingInfo>)draggingInfo
{
IntPoint client([self convertPoint:[draggingInfo draggingLocation] fromView:nil]);
IntPoint global(globalPoint([draggingInfo draggingLocation], [self window]));
DragData dragData(draggingInfo, client, global, static_cast<DragOperation>([draggingInfo draggingSourceOperationMask]), [self applicationFlags:draggingInfo]);
SandboxExtension::Handle sandboxExtensionHandle;
bool createdExtension = maybeCreateSandboxExtensionFromPasteboard([draggingInfo draggingPasteboard], sandboxExtensionHandle);
if (createdExtension)
_data->_page->process().willAcquireUniversalFileReadSandboxExtension();
SandboxExtension::HandleArray sandboxExtensionForUpload;
createSandboxExtensionsForFileUpload([draggingInfo draggingPasteboard], sandboxExtensionForUpload);
_data->_page->performDrag(dragData, [[draggingInfo draggingPasteboard] name], sandboxExtensionHandle, sandboxExtensionForUpload);
return YES;
}
// This code is needed to support drag and drop when the drag types cannot be matched.
// This is the case for elements that do not place content
// in the drag pasteboard automatically when the drag start (i.e. dragging a DIV element).
- (NSView *)_hitTest:(NSPoint *)point dragTypes:(NSSet *)types
{
if ([[self superview] mouse:*point inRect:[self frame]])
return self;
return nil;
}
#endif // ENABLE(DRAG_SUPPORT)
- (BOOL)_windowResizeMouseLocationIsInVisibleScrollerThumb:(NSPoint)loc
{
NSPoint localPoint = [self convertPoint:loc fromView:nil];
NSRect visibleThumbRect = NSRect(_data->_page->visibleScrollerThumbRect());
return NSMouseInRect(localPoint, visibleThumbRect, [self isFlipped]);
}
// FIXME: Use AppKit constants for these when they are available.
static NSString * const windowDidChangeBackingPropertiesNotification = @"NSWindowDidChangeBackingPropertiesNotification";
static NSString * const backingPropertyOldScaleFactorKey = @"NSBackingPropertyOldScaleFactorKey";
- (void)addWindowObserversForWindow:(NSWindow *)window
{
if (window) {
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidBecomeKey:)
name:NSWindowDidBecomeKeyNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidResignKey:)
name:NSWindowDidResignKeyNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidMiniaturize:)
name:NSWindowDidMiniaturizeNotification object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidDeminiaturize:)
name:NSWindowDidDeminiaturizeNotification object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidMove:)
name:NSWindowDidMoveNotification object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidResize:)
name:NSWindowDidResizeNotification object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidOrderOffScreen:)
name:@"NSWindowDidOrderOffScreenNotification" object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidOrderOnScreen:)
name:@"_NSWindowDidBecomeVisible" object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidChangeBackingProperties:)
name:windowDidChangeBackingPropertiesNotification object:window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidChangeScreen:)
name:NSWindowDidChangeScreenNotification object:window];
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowDidChangeOcclusionState:)
name:NSWindowDidChangeOcclusionStateNotification object:window];
#endif
}
}
- (void)removeWindowObservers
{
NSWindow *window = [self window];
if (!window)
return;
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidBecomeKeyNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidResignKeyNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidMiniaturizeNotification object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidDeminiaturizeNotification object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidMoveNotification object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidResizeNotification object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"NSWindowWillOrderOffScreenNotification" object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"NSWindowDidOrderOffScreenNotification" object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"_NSWindowDidBecomeVisible" object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:windowDidChangeBackingPropertiesNotification object:window];
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidChangeScreenNotification object:window];
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
[[NSNotificationCenter defaultCenter] removeObserver:self name:NSWindowDidChangeOcclusionStateNotification object:window];
#endif
}
- (void)viewWillMoveToWindow:(NSWindow *)window
{
NSWindow *currentWindow = [self window];
if (window == currentWindow)
return;
_data->_pageClient->viewWillMoveToAnotherWindow();
[self removeWindowObservers];
[self addWindowObserversForWindow:window];
}
- (void)viewDidMoveToWindow
{
if ([self window]) {
_data->_windowHasValidBackingStore = NO;
[self doWindowDidChangeScreen];
ViewState::Flags viewStateChanges = ViewState::WindowIsVisible | ViewState::WindowIsActive | ViewState::IsVisible;
if ([self isDeferringViewInWindowChanges])
_data->_viewInWindowChangeWasDeferred = YES;
else
viewStateChanges |= ViewState::IsInWindow;
_data->_page->viewStateDidChange(viewStateChanges);
[self _updateWindowAndViewFrames];
if (!_data->_flagsChangedEventMonitor) {
_data->_flagsChangedEventMonitor = [NSEvent addLocalMonitorForEventsMatchingMask:NSFlagsChangedMask handler:^(NSEvent *flagsChangedEvent) {
[self _postFakeMouseMovedEventForFlagsChangedEvent:flagsChangedEvent];
return flagsChangedEvent;
}];
}
[self _accessibilityRegisterUIProcessTokens];
} else {
ViewState::Flags viewStateChanges = ViewState::WindowIsVisible | ViewState::WindowIsActive | ViewState::IsVisible;
if ([self isDeferringViewInWindowChanges])
_data->_viewInWindowChangeWasDeferred = YES;
else
viewStateChanges |= ViewState::IsInWindow;
_data->_page->viewStateDidChange(viewStateChanges);
[NSEvent removeMonitor:_data->_flagsChangedEventMonitor];
_data->_flagsChangedEventMonitor = nil;
WKHideWordDefinitionWindow();
}
_data->_page->setIntrinsicDeviceScaleFactor([self _intrinsicDeviceScaleFactor]);
}
- (void)doWindowDidChangeScreen
{
_data->_page->windowScreenDidChange((PlatformDisplayID)[[[[[self window] screen] deviceDescription] objectForKey:@"NSScreenNumber"] intValue]);
}
- (void)_windowDidBecomeKey:(NSNotification *)notification
{
NSWindow *keyWindow = [notification object];
if (keyWindow == [self window] || keyWindow == [[self window] attachedSheet]) {
[self _updateSecureInputState];
_data->_page->viewStateDidChange(ViewState::WindowIsActive);
}
}
- (void)_windowDidChangeScreen:(NSNotification *)notification
{
[self doWindowDidChangeScreen];
}
- (void)_windowDidResignKey:(NSNotification *)notification
{
NSWindow *formerKeyWindow = [notification object];
if (formerKeyWindow == [self window] || formerKeyWindow == [[self window] attachedSheet]) {
[self _updateSecureInputState];
_data->_page->viewStateDidChange(ViewState::WindowIsActive);
}
}
- (void)_windowDidMiniaturize:(NSNotification *)notification
{
_data->_windowHasValidBackingStore = NO;
_data->_page->viewStateDidChange(ViewState::WindowIsVisible);
}
- (void)_windowDidDeminiaturize:(NSNotification *)notification
{
_data->_page->viewStateDidChange(ViewState::WindowIsVisible);
}
- (void)_windowDidMove:(NSNotification *)notification
{
[self _updateWindowAndViewFrames];
}
- (void)_windowDidResize:(NSNotification *)notification
{
_data->_windowHasValidBackingStore = NO;
[self _updateWindowAndViewFrames];
}
- (void)_windowDidOrderOffScreen:(NSNotification *)notification
{
_data->_page->viewStateDidChange(ViewState::WindowIsVisible | ViewState::IsVisible | ViewState::WindowIsActive);
}
- (void)_windowDidOrderOnScreen:(NSNotification *)notification
{
_data->_page->viewStateDidChange(ViewState::WindowIsVisible | ViewState::IsVisible | ViewState::WindowIsActive);
}
- (void)_windowDidChangeBackingProperties:(NSNotification *)notification
{
CGFloat oldBackingScaleFactor = [[notification.userInfo objectForKey:backingPropertyOldScaleFactorKey] doubleValue];
CGFloat newBackingScaleFactor = [self _intrinsicDeviceScaleFactor];
if (oldBackingScaleFactor == newBackingScaleFactor)
return;
_data->_windowHasValidBackingStore = NO;
_data->_page->setIntrinsicDeviceScaleFactor(newBackingScaleFactor);
}
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1090
- (void)_windowDidChangeOcclusionState:(NSNotification *)notification
{
_data->_page->viewStateDidChange(ViewState::IsVisible);
}
#endif
- (void)drawRect:(NSRect)rect
{
LOG(View, "drawRect: x:%g, y:%g, width:%g, height:%g", rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
_data->_page->endPrinting();
}
- (BOOL)isOpaque
{
return _data->_page->drawsBackground();
}
- (BOOL)mouseDownCanMoveWindow
{
// -[NSView mouseDownCanMoveWindow] returns YES when the NSView is transparent,
// but we don't want a drag in the NSView to move the window, even if it's transparent.
return NO;
}
- (void)viewDidHide
{
_data->_page->viewStateDidChange(ViewState::IsVisible);
}
- (void)viewDidUnhide
{
_data->_page->viewStateDidChange(ViewState::IsVisible);
}
- (void)viewDidChangeBackingProperties
{
NSColorSpace *colorSpace = [[self window] colorSpace];
if ([colorSpace isEqualTo:_data->_colorSpace.get()])
return;
_data->_colorSpace = nullptr;
if (DrawingAreaProxy *drawingArea = _data->_page->drawingArea())
drawingArea->colorSpaceDidChange();
}
- (void)_activeSpaceDidChange:(NSNotification *)notification
{
_data->_page->viewStateDidChange(ViewState::IsVisible);
}
- (void)_accessibilityRegisterUIProcessTokens
{
// Initialize remote accessibility when the window connection has been established.
NSData *remoteElementToken = WKAXRemoteTokenForElement(self);
NSData *remoteWindowToken = WKAXRemoteTokenForElement([self window]);
CoreIPC::DataReference elementToken = CoreIPC::DataReference(reinterpret_cast<const uint8_t*>([remoteElementToken bytes]), [remoteElementToken length]);
CoreIPC::DataReference windowToken = CoreIPC::DataReference(reinterpret_cast<const uint8_t*>([remoteWindowToken bytes]), [remoteWindowToken length]);
_data->_page->registerUIProcessAccessibilityTokens(elementToken, windowToken);
}
- (void)_updateRemoteAccessibilityRegistration:(BOOL)registerProcess
{
// When the tree is connected/disconnected, the remote accessibility registration
// needs to be updated with the pid of the remote process. If the process is going
// away, that information is not present in WebProcess
pid_t pid = 0;
if (registerProcess)
pid = _data->_page->process().processIdentifier();
else if (!registerProcess) {
pid = WKAXRemoteProcessIdentifier(_data->_remoteAccessibilityChild.get());
_data->_remoteAccessibilityChild = nil;
}
if (pid)
WKAXRegisterRemoteProcess(registerProcess, pid);
}
- (void)enableAccessibilityIfNecessary
{
if (WebCore::AXObjectCache::accessibilityEnabled())
return;
// After enabling accessibility update the window frame on the web process so that the
// correct accessibility position is transmitted (when AX is off, that position is not calculated).
WebCore::AXObjectCache::enableAccessibility();
[self _updateWindowAndViewFrames];
}
- (id)accessibilityFocusedUIElement
{
[self enableAccessibilityIfNecessary];
return _data->_remoteAccessibilityChild.get();
}
- (BOOL)accessibilityIsIgnored
{
return NO;
}
- (id)accessibilityHitTest:(NSPoint)point
{
[self enableAccessibilityIfNecessary];
return _data->_remoteAccessibilityChild.get();
}
- (id)accessibilityAttributeValue:(NSString*)attribute
{
[self enableAccessibilityIfNecessary];
if ([attribute isEqualToString:NSAccessibilityChildrenAttribute]) {
id child = nil;
if (_data->_remoteAccessibilityChild)
child = _data->_remoteAccessibilityChild.get();
if (!child)
return nil;
return [NSArray arrayWithObject:child];
}
if ([attribute isEqualToString:NSAccessibilityRoleAttribute])
return NSAccessibilityGroupRole;
if ([attribute isEqualToString:NSAccessibilityRoleDescriptionAttribute])
return NSAccessibilityRoleDescription(NSAccessibilityGroupRole, nil);
if ([attribute isEqualToString:NSAccessibilityParentAttribute])
return NSAccessibilityUnignoredAncestor([self superview]);
if ([attribute isEqualToString:NSAccessibilityEnabledAttribute])
return [NSNumber numberWithBool:YES];
return [super accessibilityAttributeValue:attribute];
}
- (NSView *)hitTest:(NSPoint)point
{
NSView *hitView = [super hitTest:point];
if (hitView && _data && hitView == _data->_layerHostingView)
hitView = self;
return hitView;
}
- (void)_postFakeMouseMovedEventForFlagsChangedEvent:(NSEvent *)flagsChangedEvent
{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
NSEvent *fakeEvent = [NSEvent mouseEventWithType:NSMouseMoved location:[[flagsChangedEvent window] convertScreenToBase:[NSEvent mouseLocation]]
modifierFlags:[flagsChangedEvent modifierFlags] timestamp:[flagsChangedEvent timestamp] windowNumber:[flagsChangedEvent windowNumber]
context:[flagsChangedEvent context] eventNumber:0 clickCount:0 pressure:0];
#pragma clang diagnostic pop
NativeWebMouseEvent webEvent(fakeEvent, self);
_data->_page->handleMouseEvent(webEvent);
}
- (NSInteger)conversationIdentifier
{
return (NSInteger)self;
}
- (float)_intrinsicDeviceScaleFactor
{
NSWindow *window = [self window];
if (window)
return [window backingScaleFactor];
return [[NSScreen mainScreen] backingScaleFactor];
}
- (void)_setDrawingAreaSize:(NSSize)size
{
if (!_data->_page->drawingArea())
return;
_data->_page->drawingArea()->setSize(IntSize(size), IntSize(0, 0), IntSize(_data->_resizeScrollOffset));
_data->_resizeScrollOffset = NSZeroSize;
}
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
- (void)quickLookWithEvent:(NSEvent *)event
{
NSPoint locationInViewCoordinates = [self convertPoint:[event locationInWindow] fromView:nil];
_data->_page->performDictionaryLookupAtLocation(FloatPoint(locationInViewCoordinates.x, locationInViewCoordinates.y));
}
#endif
@end
@implementation WKView (Internal)
- (std::unique_ptr<WebKit::DrawingAreaProxy>)_createDrawingAreaProxy
{
if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"WebKit2UseRemoteLayerTreeDrawingArea"] boolValue])
return std::make_unique<RemoteLayerTreeDrawingAreaProxy>(_data->_page.get());
return std::make_unique<TiledCoreAnimationDrawingAreaProxy>(_data->_page.get());
}
- (BOOL)_isFocused
{
if (_data->_inBecomeFirstResponder)
return YES;
if (_data->_inResignFirstResponder)
return NO;
return [[self window] firstResponder] == self;
}
- (WebKit::ColorSpaceData)_colorSpace
{
if (!_data->_colorSpace) {
if ([self window])
_data->_colorSpace = [[self window] colorSpace];
else
_data->_colorSpace = [[NSScreen mainScreen] colorSpace];
}
ColorSpaceData colorSpaceData;
colorSpaceData.cgColorSpace = [_data->_colorSpace.get() CGColorSpace];
return colorSpaceData;
}
- (void)_processDidCrash
{
if (_data->_layerHostingView)
[self _setAcceleratedCompositingModeRootLayer:nil];
[self _updateRemoteAccessibilityRegistration:NO];
}
- (void)_pageClosed
{
[self _updateRemoteAccessibilityRegistration:NO];
}
- (void)_didRelaunchProcess
{
[self _accessibilityRegisterUIProcessTokens];
}
- (void)_preferencesDidChange
{
BOOL needsViewFrameInWindowCoordinates = _data->_page->pageGroup().preferences()->pluginsEnabled();
if (!!needsViewFrameInWindowCoordinates == !!_data->_needsViewFrameInWindowCoordinates)
return;
_data->_needsViewFrameInWindowCoordinates = needsViewFrameInWindowCoordinates;
if ([self window])
[self _updateWindowAndViewFrames];
}
- (void)_setCursor:(NSCursor *)cursor
{
if ([NSCursor currentCursor] == cursor)
return;
[cursor set];
}
- (void)_setUserInterfaceItemState:(NSString *)commandName enabled:(BOOL)isEnabled state:(int)newState
{
ValidationVector items = _data->_validationMap.take(commandName);
size_t size = items.size();
for (size_t i = 0; i < size; ++i) {
ValidationItem item = items[i].get();
[menuItem(item) setState:newState];
[menuItem(item) setEnabled:isEnabled];
[toolbarItem(item) setEnabled:isEnabled];
// FIXME <rdar://problem/8803392>: If the item is neither a menu nor toolbar item, it will be left enabled.
}
}
- (BOOL)_tryPostProcessPluginComplexTextInputKeyDown:(NSEvent *)event
{
if (!_data->_pluginComplexTextInputIdentifier || _data->_pluginComplexTextInputState == PluginComplexTextInputDisabled)
return NO;
// In the legacy text input model, the event has already been sent to the input method.
if (_data->_pluginComplexTextInputState == PluginComplexTextInputEnabledLegacy)
return NO;
return [self _handlePluginComplexTextInputKeyDown:event];
}
- (void)_doneWithKeyEvent:(NSEvent *)event eventWasHandled:(BOOL)eventWasHandled
{
if ([event type] != NSKeyDown)
return;
if ([self _tryPostProcessPluginComplexTextInputKeyDown:event])
return;
if (eventWasHandled) {
[NSCursor setHiddenUntilMouseMoves:YES];
return;
}
// resending the event may destroy this WKView
RetainPtr<WKView> protector(self);
ASSERT(!_data->_keyDownEventBeingResent);
_data->_keyDownEventBeingResent = event;
[NSApp _setCurrentEvent:event];
[NSApp sendEvent:event];
_data->_keyDownEventBeingResent = nullptr;
}
- (BOOL)_interpretKeyEvent:(NSEvent *)event savingCommandsTo:(Vector<WebCore::KeypressCommand>&)commands
{
ASSERT(!_data->_interpretKeyEventsParameters);
ASSERT(commands.isEmpty());
if ([event type] == NSFlagsChanged)
return NO;
WKViewInterpretKeyEventsParameters parameters;
parameters.eventInterpretationHadSideEffects = false;
parameters.executingSavedKeypressCommands = false;
// We assume that an input method has consumed the event, and only change this assumption if one of the NSTextInput methods is called.
// We assume the IM will *not* consume hotkey sequences.
parameters.consumedByIM = !([event modifierFlags] & NSCommandKeyMask);
parameters.commands = &commands;
_data->_interpretKeyEventsParameters = &parameters;
LOG(TextInput, "-> interpretKeyEvents:%p %@", event, event);
[self interpretKeyEvents:[NSArray arrayWithObject:event]];
_data->_interpretKeyEventsParameters = 0;
// An input method may consume an event and not tell us (e.g. when displaying a candidate window),
// in which case we should not bubble the event up the DOM.
if (parameters.consumedByIM) {
LOG(TextInput, "...event %p was consumed by an input method", event);
return YES;
}
LOG(TextInput, "...interpretKeyEvents for event %p done, returns %d", event, parameters.eventInterpretationHadSideEffects);
// If we have already executed all or some of the commands, the event is "handled". Note that there are additional checks on web process side.
return parameters.eventInterpretationHadSideEffects;
}
- (NSRect)_convertToDeviceSpace:(NSRect)rect
{
return toDeviceSpace(rect, [self window]);
}
- (NSRect)_convertToUserSpace:(NSRect)rect
{
return toUserSpace(rect, [self window]);
}
// Any non-zero value will do, but using something recognizable might help us debug some day.
#define TRACKING_RECT_TAG 0xBADFACE
- (NSTrackingRectTag)addTrackingRect:(NSRect)rect owner:(id)owner userData:(void *)data assumeInside:(BOOL)assumeInside
{
ASSERT(_data->_trackingRectOwner == nil);
_data->_trackingRectOwner = owner;
_data->_trackingRectUserData = data;
return TRACKING_RECT_TAG;
}
- (NSTrackingRectTag)_addTrackingRect:(NSRect)rect owner:(id)owner userData:(void *)data assumeInside:(BOOL)assumeInside useTrackingNum:(int)tag
{
ASSERT(tag == 0 || tag == TRACKING_RECT_TAG);
ASSERT(_data->_trackingRectOwner == nil);
_data->_trackingRectOwner = owner;
_data->_trackingRectUserData = data;
return TRACKING_RECT_TAG;
}
- (void)_addTrackingRects:(NSRect *)rects owner:(id)owner userDataList:(void **)userDataList assumeInsideList:(BOOL *)assumeInsideList trackingNums:(NSTrackingRectTag *)trackingNums count:(int)count
{
ASSERT(count == 1);
ASSERT(trackingNums[0] == 0 || trackingNums[0] == TRACKING_RECT_TAG);
ASSERT(_data->_trackingRectOwner == nil);
_data->_trackingRectOwner = owner;
_data->_trackingRectUserData = userDataList[0];
trackingNums[0] = TRACKING_RECT_TAG;
}
- (void)removeTrackingRect:(NSTrackingRectTag)tag
{
if (!_data)
return;
if (tag == 0)
return;
if (tag == TRACKING_RECT_TAG) {
_data->_trackingRectOwner = nil;
return;
}
if (tag == _data->_lastToolTipTag) {
[super removeTrackingRect:tag];
_data->_lastToolTipTag = 0;
return;
}
// If any other tracking rect is being removed, we don't know how it was created
// and it's possible there's a leak involved (see 3500217)
ASSERT_NOT_REACHED();
}
- (void)_removeTrackingRects:(NSTrackingRectTag *)tags count:(int)count
{
int i;
for (i = 0; i < count; ++i) {
int tag = tags[i];
if (tag == 0)
continue;
ASSERT(tag == TRACKING_RECT_TAG);
if (_data != nil) {
_data->_trackingRectOwner = nil;
}
}
}
- (void)_sendToolTipMouseExited
{
// Nothing matters except window, trackingNumber, and userData.
NSEvent *fakeEvent = [NSEvent enterExitEventWithType:NSMouseExited
location:NSMakePoint(0, 0)
modifierFlags:0
timestamp:0
windowNumber:[[self window] windowNumber]
context:NULL
eventNumber:0
trackingNumber:TRACKING_RECT_TAG
userData:_data->_trackingRectUserData];
[_data->_trackingRectOwner mouseExited:fakeEvent];
}
- (void)_sendToolTipMouseEntered
{
// Nothing matters except window, trackingNumber, and userData.
NSEvent *fakeEvent = [NSEvent enterExitEventWithType:NSMouseEntered
location:NSMakePoint(0, 0)
modifierFlags:0
timestamp:0
windowNumber:[[self window] windowNumber]
context:NULL
eventNumber:0
trackingNumber:TRACKING_RECT_TAG
userData:_data->_trackingRectUserData];
[_data->_trackingRectOwner mouseEntered:fakeEvent];
}
- (NSString *)view:(NSView *)view stringForToolTip:(NSToolTipTag)tag point:(NSPoint)point userData:(void *)data
{
return nsStringFromWebCoreString(_data->_page->toolTip());
}
- (void)_toolTipChangedFrom:(NSString *)oldToolTip to:(NSString *)newToolTip
{
if (oldToolTip)
[self _sendToolTipMouseExited];
if (newToolTip && [newToolTip length] > 0) {
// See radar 3500217 for why we remove all tooltips rather than just the single one we created.
[self removeAllToolTips];
NSRect wideOpenRect = NSMakeRect(-100000, -100000, 200000, 200000);
_data->_lastToolTipTag = [self addToolTipRect:wideOpenRect owner:self userData:NULL];
[self _sendToolTipMouseEntered];
}
}
- (void)_setFindIndicator:(PassRefPtr<FindIndicator>)findIndicator fadeOut:(BOOL)fadeOut animate:(BOOL)animate
{
if (!findIndicator) {
_data->_findIndicatorWindow = nullptr;
return;
}
if (!_data->_findIndicatorWindow)
_data->_findIndicatorWindow = std::make_unique<FindIndicatorWindow>(self);
_data->_findIndicatorWindow->setFindIndicator(findIndicator, fadeOut, animate);
}
- (void)_setAcceleratedCompositingModeRootLayer:(CALayer *)rootLayer
{
[CATransaction begin];
[CATransaction setDisableActions:YES];
if (rootLayer) {
if (!_data->_layerHostingView) {
// Create an NSView that will host our layer tree.
_data->_layerHostingView = adoptNS([[WKFlippedView alloc] initWithFrame:[self bounds]]);
[_data->_layerHostingView.get() setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
[self addSubview:_data->_layerHostingView.get() positioned:NSWindowBelow relativeTo:nil];
// Create a root layer that will back the NSView.
RetainPtr<CALayer> layer = adoptNS([[CALayer alloc] init]);
#ifndef NDEBUG
[layer setName:@"Hosting root layer"];
#endif
[_data->_layerHostingView setLayer:layer.get()];
[_data->_layerHostingView setWantsLayer:YES];
}
[_data->_layerHostingView layer].sublayers = [NSArray arrayWithObject:rootLayer];
} else {
if (_data->_layerHostingView) {
[_data->_layerHostingView removeFromSuperview];
[_data->_layerHostingView setLayer:nil];
[_data->_layerHostingView setWantsLayer:NO];
_data->_layerHostingView = nullptr;
}
}
[CATransaction commit];
}
- (void)_setAccessibilityWebProcessToken:(NSData *)data
{
_data->_remoteAccessibilityChild = WKAXRemoteElementForToken(data);
[self _updateRemoteAccessibilityRegistration:YES];
}
- (void)_pluginFocusOrWindowFocusChanged:(BOOL)pluginHasFocusAndWindowHasFocus pluginComplexTextInputIdentifier:(uint64_t)pluginComplexTextInputIdentifier
{
BOOL inputSourceChanged = _data->_pluginComplexTextInputIdentifier;
if (pluginHasFocusAndWindowHasFocus) {
// Check if we're already allowing text input for this plug-in.
if (pluginComplexTextInputIdentifier == _data->_pluginComplexTextInputIdentifier)
return;
_data->_pluginComplexTextInputIdentifier = pluginComplexTextInputIdentifier;
} else {
// Check if we got a request to unfocus a plug-in that isn't focused.
if (pluginComplexTextInputIdentifier != _data->_pluginComplexTextInputIdentifier)
return;
_data->_pluginComplexTextInputIdentifier = 0;
}
if (inputSourceChanged) {
// The input source changed, go ahead and discard any entered text.
[[WKTextInputWindowController sharedTextInputWindowController] unmarkText];
}
// This will force the current input context to be updated to its correct value.
[NSApp updateWindows];
}
- (void)_setPluginComplexTextInputState:(PluginComplexTextInputState)pluginComplexTextInputState pluginComplexTextInputIdentifier:(uint64_t)pluginComplexTextInputIdentifier
{
if (pluginComplexTextInputIdentifier != _data->_pluginComplexTextInputIdentifier) {
// We're asked to update the state for a plug-in that doesn't have focus.
return;
}
[self _setPluginComplexTextInputState:pluginComplexTextInputState];
}
- (void)_setDragImage:(NSImage *)image at:(NSPoint)clientPoint linkDrag:(BOOL)linkDrag
{
IntSize size([image size]);
size.scale(1.0 / _data->_page->deviceScaleFactor());
[image setSize:size];
// The call below could release this WKView.
RetainPtr<WKView> protector(self);
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
[self dragImage:image
at:clientPoint
offset:NSZeroSize
event:(linkDrag) ? [NSApp currentEvent] :_data->_mouseDownEvent
pasteboard:[NSPasteboard pasteboardWithName:NSDragPboard]
source:self
slideBack:YES];
#pragma clang diagnostic pop
}
static bool matchesExtensionOrEquivalent(NSString *filename, NSString *extension)
{
NSString *extensionAsSuffix = [@"." stringByAppendingString:extension];
return hasCaseInsensitiveSuffix(filename, extensionAsSuffix) || (stringIsCaseInsensitiveEqualToString(extension, @"jpeg")
&& hasCaseInsensitiveSuffix(filename, @".jpg"));
}
- (void)_setPromisedData:(WebCore::Image *)image withFileName:(NSString *)filename withExtension:(NSString *)extension withTitle:(NSString *)title withURL:(NSString *)url withVisibleURL:(NSString *)visibleUrl withArchive:(WebCore::SharedBuffer*) archiveBuffer forPasteboard:(NSString *)pasteboardName
{
NSPasteboard *pasteboard = [NSPasteboard pasteboardWithName:pasteboardName];
RetainPtr<NSMutableArray> types = adoptNS([[NSMutableArray alloc] initWithObjects:NSFilesPromisePboardType, nil]);
[types.get() addObjectsFromArray:archiveBuffer ? PasteboardTypes::forImagesWithArchive() : PasteboardTypes::forImages()];
[pasteboard declareTypes:types.get() owner:self];
if (!matchesExtensionOrEquivalent(filename, extension))
filename = [[filename stringByAppendingString:@"."] stringByAppendingString:extension];
[pasteboard setString:visibleUrl forType:NSStringPboardType];
[pasteboard setString:visibleUrl forType:PasteboardTypes::WebURLPboardType];
[pasteboard setString:title forType:PasteboardTypes::WebURLNamePboardType];
[pasteboard setPropertyList:[NSArray arrayWithObjects:[NSArray arrayWithObject:visibleUrl], [NSArray arrayWithObject:title], nil] forType:PasteboardTypes::WebURLsWithTitlesPboardType];
[pasteboard setPropertyList:[NSArray arrayWithObject:extension] forType:NSFilesPromisePboardType];
if (archiveBuffer)
[pasteboard setData:archiveBuffer->createNSData().get() forType:PasteboardTypes::WebArchivePboardType];
_data->_promisedImage = image;
_data->_promisedFilename = filename;
_data->_promisedURL = url;
}
- (void)pasteboardChangedOwner:(NSPasteboard *)pasteboard
{
_data->_promisedImage = 0;
_data->_promisedFilename = "";
_data->_promisedURL = "";
}
- (void)pasteboard:(NSPasteboard *)pasteboard provideDataForType:(NSString *)type
{
// FIXME: need to support NSRTFDPboardType
if ([type isEqual:NSTIFFPboardType] && _data->_promisedImage) {
[pasteboard setData:(NSData *)_data->_promisedImage->getTIFFRepresentation() forType:NSTIFFPboardType];
_data->_promisedImage = 0;
}
}
static BOOL fileExists(NSString *path)
{
struct stat statBuffer;
return !lstat([path fileSystemRepresentation], &statBuffer);
}
static NSString *pathWithUniqueFilenameForPath(NSString *path)
{
// "Fix" the filename of the path.
NSString *filename = filenameByFixingIllegalCharacters([path lastPathComponent]);
path = [[path stringByDeletingLastPathComponent] stringByAppendingPathComponent:filename];
if (fileExists(path)) {
// Don't overwrite existing file by appending "-n", "-n.ext" or "-n.ext.ext" to the filename.
NSString *extensions = nil;
NSString *pathWithoutExtensions;
NSString *lastPathComponent = [path lastPathComponent];
NSRange periodRange = [lastPathComponent rangeOfString:@"."];
if (periodRange.location == NSNotFound) {
pathWithoutExtensions = path;
} else {
extensions = [lastPathComponent substringFromIndex:periodRange.location + 1];
lastPathComponent = [lastPathComponent substringToIndex:periodRange.location];
pathWithoutExtensions = [[path stringByDeletingLastPathComponent] stringByAppendingPathComponent:lastPathComponent];
}
for (unsigned i = 1; ; i++) {
NSString *pathWithAppendedNumber = [NSString stringWithFormat:@"%@-%d", pathWithoutExtensions, i];
path = [extensions length] ? [pathWithAppendedNumber stringByAppendingPathExtension:extensions] : pathWithAppendedNumber;
if (!fileExists(path))
break;
}
}
return path;
}
- (NSArray *)namesOfPromisedFilesDroppedAtDestination:(NSURL *)dropDestination
{
RetainPtr<NSFileWrapper> wrapper;
RetainPtr<NSData> data;
if (_data->_promisedImage) {
data = _data->_promisedImage->data()->createNSData();
wrapper = adoptNS([[NSFileWrapper alloc] initRegularFileWithContents:data.get()]);
[wrapper setPreferredFilename:_data->_promisedFilename];
}
if (!wrapper) {
LOG_ERROR("Failed to create image file.");
return nil;
}
// FIXME: Report an error if we fail to create a file.
NSString *path = [[dropDestination path] stringByAppendingPathComponent:[wrapper.get() preferredFilename]];
path = pathWithUniqueFilenameForPath(path);
if (![wrapper writeToURL:[NSURL fileURLWithPath:path] options:NSFileWrapperWritingWithNameUpdating originalContentsURL:nil error:nullptr])
LOG_ERROR("Failed to create image file via -[NSFileWrapper writeToURL:options:originalContentsURL:error:]");
if (!_data->_promisedURL.isEmpty())
WebCore::setMetadataURL(_data->_promisedURL, "", String(path));
return [NSArray arrayWithObject:[path lastPathComponent]];
}
- (void)_updateSecureInputState
{
if (![[self window] isKeyWindow] || ![self _isFocused]) {
if (_data->_inSecureInputState) {
DisableSecureEventInput();
_data->_inSecureInputState = NO;
}
return;
}
// WKView has a single input context for all editable areas (except for plug-ins).
NSTextInputContext *context = [super inputContext];
bool isInPasswordField = _data->_page->editorState().isInPasswordField;
if (isInPasswordField) {
if (!_data->_inSecureInputState)
EnableSecureEventInput();
static NSArray *romanInputSources = [[NSArray alloc] initWithObjects:&NSAllRomanInputSourcesLocaleIdentifier count:1];
LOG(TextInput, "-> setAllowedInputSourceLocales:romanInputSources");
[context setAllowedInputSourceLocales:romanInputSources];
} else {
if (_data->_inSecureInputState)
DisableSecureEventInput();
LOG(TextInput, "-> setAllowedInputSourceLocales:nil");
[context setAllowedInputSourceLocales:nil];
}
_data->_inSecureInputState = isInPasswordField;
}
- (void)_resetSecureInputState
{
if (_data->_inSecureInputState) {
DisableSecureEventInput();
_data->_inSecureInputState = NO;
}
}
- (void)_notifyInputContextAboutDiscardedComposition
{
// <rdar://problem/9359055>: -discardMarkedText can only be called for active contexts.
// FIXME: We fail to ever notify the input context if something (e.g. a navigation) happens while the window is not key.
// This is not a problem when the window is key, because we discard marked text on resigning first responder.
if (![[self window] isKeyWindow] || self != [[self window] firstResponder])
return;
LOG(TextInput, "-> discardMarkedText");
[[super inputContext] discardMarkedText]; // Inform the input method that we won't have an inline input area despite having been asked to.
}
#if ENABLE(FULLSCREEN_API)
- (BOOL)_hasFullScreenWindowController
{
return (bool)_data->_fullScreenWindowController;
}
- (WKFullScreenWindowController *)_fullScreenWindowController
{
if (!_data->_fullScreenWindowController)
_data->_fullScreenWindowController = adoptNS([[WKFullScreenWindowController alloc] initWithWindow:[self createFullScreenWindow] webView:self]);
return _data->_fullScreenWindowController.get();
}
- (void)_closeFullScreenWindowController
{
if (!_data->_fullScreenWindowController)
return;
[_data->_fullScreenWindowController close];
_data->_fullScreenWindowController = nullptr;
}
#endif
- (bool)_executeSavedCommandBySelector:(SEL)selector
{
// The sink does two things: 1) Tells us if the responder went unhandled, and
// 2) prevents any NSBeep; we don't ever want to beep here.
RetainPtr<WKResponderChainSink> sink = adoptNS([[WKResponderChainSink alloc] initWithResponderChain:self]);
[super doCommandBySelector:selector];
[sink.get() detach];
return ![sink.get() didReceiveUnhandledCommand];
}
- (void)_setIntrinsicContentSize:(NSSize)intrinsicContentSize
{
// If the intrinsic content size is less than the minimum layout width, the content flowed to fit,
// so we can report that that dimension is flexible. If not, we need to report our intrinsic width
// so that autolayout will know to provide space for us.
NSSize intrinsicContentSizeAcknowledgingFlexibleWidth = intrinsicContentSize;
if (intrinsicContentSize.width < _data->_page->minimumLayoutSize().width())
intrinsicContentSizeAcknowledgingFlexibleWidth.width = NSViewNoInstrinsicMetric;
_data->_intrinsicContentSize = intrinsicContentSizeAcknowledgingFlexibleWidth;
[self invalidateIntrinsicContentSize];
}
- (void)_cacheWindowBottomCornerRect
{
// FIXME: We should remove this code when <rdar://problem/9362085> is resolved.
NSWindow *window = [self window];
if (!window)
return;
_data->_windowBottomCornerIntersectionRect = [window _intersectBottomCornersWithRect:[self convertRect:[self visibleRect] toView:nil]];
if (!NSIsEmptyRect(_data->_windowBottomCornerIntersectionRect))
[self setNeedsDisplayInRect:[self convertRect:_data->_windowBottomCornerIntersectionRect fromView:nil]];
}
- (NSInteger)spellCheckerDocumentTag
{
if (!_data->_hasSpellCheckerDocumentTag) {
_data->_spellCheckerDocumentTag = [NSSpellChecker uniqueSpellDocumentTag];
_data->_hasSpellCheckerDocumentTag = YES;
}
return _data->_spellCheckerDocumentTag;
}
- (void)handleAcceptedAlternativeText:(NSString*)text
{
_data->_page->handleAlternativeTextUIResult(text);
}
- (void)_setSuppressVisibilityUpdates:(BOOL)suppressVisibilityUpdates
{
_data->_page->setSuppressVisibilityUpdates(suppressVisibilityUpdates);
}
- (BOOL)_suppressVisibilityUpdates
{
return _data->_page->suppressVisibilityUpdates();
}
@end
@implementation WKView (Private)
- (void)_registerDraggedTypes
{
NSMutableSet *types = [[NSMutableSet alloc] initWithArray:PasteboardTypes::forEditing()];
[types addObjectsFromArray:PasteboardTypes::forURL()];
[self registerForDraggedTypes:[types allObjects]];
[types release];
}
- (id)initWithFrame:(NSRect)frame contextRef:(WKContextRef)contextRef pageGroupRef:(WKPageGroupRef)pageGroupRef
{
return [self initWithFrame:frame contextRef:contextRef pageGroupRef:pageGroupRef relatedToPage:nil];
}
- (id)initWithFrame:(NSRect)frame contextRef:(WKContextRef)contextRef pageGroupRef:(WKPageGroupRef)pageGroupRef relatedToPage:(WKPageRef)relatedPage
{
self = [super initWithFrame:frame];
if (!self)
return nil;
[NSApp registerServicesMenuSendTypes:PasteboardTypes::forSelection() returnTypes:PasteboardTypes::forEditing()];
InitializeWebKit2();
// Legacy style scrollbars have design details that rely on tracking the mouse all the time.
NSTrackingAreaOptions options = NSTrackingMouseMoved | NSTrackingMouseEnteredAndExited | NSTrackingInVisibleRect;
if (WKRecommendedScrollerStyle() == NSScrollerStyleLegacy)
options |= NSTrackingActiveAlways;
else
options |= NSTrackingActiveInKeyWindow;
NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:frame
options:options
owner:self
userInfo:nil];
[self addTrackingArea:trackingArea];
[trackingArea release];
_data = [[WKViewData alloc] init];
_data->_pageClient = std::make_unique<PageClientImpl>(self);
_data->_page = toImpl(contextRef)->createWebPage(*_data->_pageClient, toImpl(pageGroupRef), toImpl(relatedPage));
_data->_page->setIntrinsicDeviceScaleFactor([self _intrinsicDeviceScaleFactor]);
_data->_page->initializeWebPage();
_data->_mouseDownEvent = nil;
_data->_ignoringMouseDraggedEvents = NO;
_data->_clipsToVisibleRect = NO;
_data->_useContentPreparationRectForVisibleRect = NO;
_data->_windowOcclusionDetectionEnabled = YES;
_data->_intrinsicContentSize = NSMakeSize(NSViewNoInstrinsicMetric, NSViewNoInstrinsicMetric);
_data->_needsViewFrameInWindowCoordinates = _data->_page->pageGroup().preferences()->pluginsEnabled();
[self _registerDraggedTypes];
self.wantsLayer = YES;
// Explicitly set the layer contents placement so AppKit will make sure that our layer has masksToBounds set to YES.
self.layerContentsPlacement = NSViewLayerContentsPlacementTopLeft;
WebContext::statistics().wkViewCount++;
NSNotificationCenter* workspaceNotificationCenter = [[NSWorkspace sharedWorkspace] notificationCenter];
[workspaceNotificationCenter addObserver:self selector:@selector(_activeSpaceDidChange:) name:NSWorkspaceActiveSpaceDidChangeNotification object:nil];
return self;
}
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1080
- (BOOL)wantsUpdateLayer
{
return YES;
}
- (void)updateLayer
{
if ([self drawsBackground] && ![self drawsTransparentBackground])
self.layer.backgroundColor = CGColorGetConstantColor(kCGColorWhite);
else
self.layer.backgroundColor = CGColorGetConstantColor(kCGColorClear);
// If asynchronous geometry updates have been sent by forceAsyncDrawingAreaSizeUpdate,
// then subsequent calls to setFrameSize should not result in us waiting for the did
// udpate response if setFrameSize is called.
if ([self frameSizeUpdatesDisabled])
return;
if (DrawingAreaProxy* drawingArea = _data->_page->drawingArea())
drawingArea->waitForPossibleGeometryUpdate();
}
#endif
- (WKPageRef)pageRef
{
return toAPI(_data->_page.get());
}
- (BOOL)canChangeFrameLayout:(WKFrameRef)frameRef
{
// PDF documents are already paginated, so we can't change them to add headers and footers.
return !toImpl(frameRef)->isDisplayingPDFDocument();
}
- (NSPrintOperation *)printOperationWithPrintInfo:(NSPrintInfo *)printInfo forFrame:(WKFrameRef)frameRef
{
LOG(View, "Creating an NSPrintOperation for frame '%s'", toImpl(frameRef)->url().utf8().data());
// FIXME: If the frame cannot be printed (e.g. if it contains an encrypted PDF that disallows
// printing), this function should return nil.
RetainPtr<WKPrintingView> printingView = adoptNS([[WKPrintingView alloc] initWithFrameProxy:toImpl(frameRef) view:self]);
// NSPrintOperation takes ownership of the view.
NSPrintOperation *printOperation = [NSPrintOperation printOperationWithView:printingView.get() printInfo:printInfo];
[printOperation setCanSpawnSeparateThread:YES];
[printOperation setJobTitle:toImpl(frameRef)->title()];
printingView->_printOperation = printOperation;
return printOperation;
}
- (void)setFrame:(NSRect)rect andScrollBy:(NSSize)offset
{
ASSERT(NSEqualSizes(_data->_resizeScrollOffset, NSZeroSize));
_data->_resizeScrollOffset = offset;
[self setFrame:rect];
}
- (void)disableFrameSizeUpdates
{
_data->_frameSizeUpdatesDisabledCount++;
}
- (void)enableFrameSizeUpdates
{
if (!_data->_frameSizeUpdatesDisabledCount)
return;
if (!(--_data->_frameSizeUpdatesDisabledCount)) {
if (_data->_clipsToVisibleRect)
[self _updateViewExposedRect];
[self _setDrawingAreaSize:[self frame].size];
}
}
- (BOOL)frameSizeUpdatesDisabled
{
return _data->_frameSizeUpdatesDisabledCount > 0;
}
- (void)performDictionaryLookupAtCurrentMouseLocation
{
NSPoint thePoint = [NSEvent mouseLocation];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
thePoint = [[self window] convertScreenToBase:thePoint];
#pragma clang diagnostic pop
thePoint = [self convertPoint:thePoint fromView:nil];
_data->_page->performDictionaryLookupAtLocation(FloatPoint(thePoint.x, thePoint.y));
}
+ (void)hideWordDefinitionWindow
{
WKHideWordDefinitionWindow();
}
- (CGFloat)minimumLayoutWidth
{
static BOOL loggedDeprecationWarning = NO;
if (!loggedDeprecationWarning) {
NSLog(@"Please use minimumSizeForAutoLayout instead of minimumLayoutWidth.");
loggedDeprecationWarning = YES;
}
return self.minimumSizeForAutoLayout.width;
}
- (void)setMinimumLayoutWidth:(CGFloat)minimumLayoutWidth
{
static BOOL loggedDeprecationWarning = NO;
if (!loggedDeprecationWarning) {
NSLog(@"Please use setMinimumSizeForAutoLayout: instead of setMinimumLayoutWidth:.");
loggedDeprecationWarning = YES;
}
[self setMinimumWidthForAutoLayout:minimumLayoutWidth];
}
- (CGFloat)minimumWidthForAutoLayout
{
return self.minimumSizeForAutoLayout.width;
}
- (void)setMinimumWidthForAutoLayout:(CGFloat)minimumLayoutWidth
{
self.minimumSizeForAutoLayout = NSMakeSize(minimumLayoutWidth, self.minimumSizeForAutoLayout.height);
}
- (NSSize)minimumSizeForAutoLayout
{
return _data->_page->minimumLayoutSize();
}
- (void)setMinimumSizeForAutoLayout:(NSSize)minimumSizeForAutoLayout
{
BOOL expandsToFit = minimumSizeForAutoLayout.width > 0;
_data->_page->setMinimumLayoutSize(IntSize(minimumSizeForAutoLayout.width, minimumSizeForAutoLayout.height));
_data->_page->setMainFrameIsScrollable(!expandsToFit);
[self setShouldClipToVisibleRect:expandsToFit];
}
- (BOOL)shouldExpandToViewHeightForAutoLayout
{
return _data->_page->autoSizingShouldExpandToViewHeight();
}
- (void)setShouldExpandToViewHeightForAutoLayout:(BOOL)shouldExpand
{
return _data->_page->setAutoSizingShouldExpandToViewHeight(shouldExpand);
}
- (BOOL)shouldClipToVisibleRect
{
return _data->_clipsToVisibleRect;
}
- (void)setShouldClipToVisibleRect:(BOOL)clipsToVisibleRect
{
_data->_clipsToVisibleRect = clipsToVisibleRect;
[self _updateViewExposedRect];
}
- (NSColor *)underlayColor
{
Color webColor = _data->_page->underlayColor();
if (!webColor.isValid())
return nil;
return nsColor(webColor);
}
- (void)setUnderlayColor:(NSColor *)underlayColor
{
_data->_page->setUnderlayColor(colorFromNSColor(underlayColor));
}
- (NSView *)fullScreenPlaceholderView
{
#if ENABLE(FULLSCREEN_API)
if (_data->_fullScreenWindowController && [_data->_fullScreenWindowController isFullScreen])
return [_data->_fullScreenWindowController webViewPlaceholder];
#endif
return nil;
}
- (NSWindow *)createFullScreenWindow
{
#if ENABLE(FULLSCREEN_API)
#if __MAC_OS_X_VERSION_MIN_REQUIRED <= 1080
NSRect contentRect = NSZeroRect;
#else
NSRect contentRect = [[NSScreen mainScreen] frame];
#endif
return [[[WebCoreFullScreenWindow alloc] initWithContentRect:contentRect styleMask:(NSBorderlessWindowMask | NSResizableWindowMask) backing:NSBackingStoreBuffered defer:NO] autorelease];
#else
return nil;
#endif
}
- (void)beginDeferringViewInWindowChanges
{
if (_data->_shouldDeferViewInWindowChanges) {
NSLog(@"beginDeferringViewInWindowChanges was called while already deferring view-in-window changes!");
return;
}
_data->_shouldDeferViewInWindowChanges = YES;
}
- (void)endDeferringViewInWindowChanges
{
if (!_data->_shouldDeferViewInWindowChanges) {
NSLog(@"endDeferringViewInWindowChanges was called without beginDeferringViewInWindowChanges!");
return;
}
_data->_shouldDeferViewInWindowChanges = NO;
if (_data->_viewInWindowChangeWasDeferred) {
_data->_page->viewStateDidChange(ViewState::IsInWindow);
_data->_viewInWindowChangeWasDeferred = NO;
}
}
- (void)endDeferringViewInWindowChangesSync
{
if (!_data->_shouldDeferViewInWindowChanges) {
NSLog(@"endDeferringViewInWindowChangesSync was called without beginDeferringViewInWindowChanges!");
return;
}
PageClient* pageClient = _data->_pageClient.get();
bool hasPendingViewInWindowChange = _data->_viewInWindowChangeWasDeferred && _data->_page->isInWindow() != pageClient->isViewInWindow();
_data->_shouldDeferViewInWindowChanges = NO;
if (_data->_viewInWindowChangeWasDeferred) {
_data->_page->viewStateDidChange(ViewState::IsInWindow, hasPendingViewInWindowChange ? WebPageProxy::WantsReplyOrNot::DoesWantReply : WebPageProxy::WantsReplyOrNot::DoesNotWantReply);
_data->_viewInWindowChangeWasDeferred = NO;
}
if (hasPendingViewInWindowChange)
_data->_page->waitForDidUpdateViewState();
}
- (BOOL)isDeferringViewInWindowChanges
{
return _data->_shouldDeferViewInWindowChanges;
}
- (BOOL)windowOcclusionDetectionEnabled
{
return _data->_windowOcclusionDetectionEnabled;
}
- (void)setWindowOcclusionDetectionEnabled:(BOOL)flag
{
_data->_windowOcclusionDetectionEnabled = flag;
}
// This method forces a drawing area geometry update, even if frame size updates are disabled.
// The updated is performed asynchronously; we don't wait for the geometry update before returning.
// The area drawn need not match the current frame size - if it differs it will be anchored to the
// frame according to the current contentAnchor.
- (void)forceAsyncDrawingAreaSizeUpdate:(NSSize)size
{
if (_data->_clipsToVisibleRect)
[self _updateViewExposedRect];
[self _setDrawingAreaSize:size];
// If a geometry update is pending the new update won't be sent. Poll without waiting for any
// pending did-update message now, such that the new update can be sent. We do so after setting
// the drawing area size such that the latest update is sent.
if (DrawingAreaProxy* drawingArea = _data->_page->drawingArea())
drawingArea->waitForPossibleGeometryUpdate(std::chrono::milliseconds::zero());
}
- (void)waitForAsyncDrawingAreaSizeUpdate
{
if (DrawingAreaProxy* drawingArea = _data->_page->drawingArea()) {
// If a geometry update is still pending then the action of receiving the
// first geometry update may result in another update being scheduled -
// we should wait for this to complete too.
drawingArea->waitForPossibleGeometryUpdate(DrawingAreaProxy::didUpdateBackingStoreStateTimeout() / 2);
drawingArea->waitForPossibleGeometryUpdate(DrawingAreaProxy::didUpdateBackingStoreStateTimeout() / 2);
}
}
- (BOOL)isUsingUISideCompositing
{
if (DrawingAreaProxy* drawingArea = _data->_page->drawingArea())
return drawingArea->type() == DrawingAreaTypeRemoteLayerTree;
return NO;
}
- (void)_ensureGestureController
{
if (_data->_gestureController)
return;
_data->_gestureController = std::make_unique<ViewGestureController>(*_data->_page);
}
- (void)setAllowsMagnification:(BOOL)allowsMagnification
{
_data->_allowsMagnification = allowsMagnification;
}
- (BOOL)allowsMagnification
{
return _data->_allowsMagnification;
}
- (void)magnifyWithEvent:(NSEvent *)event
{
if (!_data->_allowsMagnification) {
[super magnifyWithEvent:event];
return;
}
[self _ensureGestureController];
_data->_gestureController->handleMagnificationGesture(event.magnification, [self convertPoint:event.locationInWindow fromView:nil]);
}
- (void)smartMagnifyWithEvent:(NSEvent *)event
{
if (!_data->_allowsMagnification) {
[super smartMagnifyWithEvent:event];
return;
}
[self _ensureGestureController];
_data->_gestureController->handleSmartMagnificationGesture([self convertPoint:event.locationInWindow fromView:nil]);
}
-(void)endGestureWithEvent:(NSEvent *)event
{
if (!_data->_gestureController) {
[super endGestureWithEvent:event];
return;
}
_data->_gestureController->endActiveGesture();
}
- (void)setMagnification:(double)magnification centeredAtPoint:(NSPoint)point
{
_data->_page->scalePage(magnification, roundedIntPoint(point));
}
- (void)setMagnification:(double)magnification
{
FloatPoint viewCenter(NSMidX([self bounds]), NSMidY([self bounds]));
_data->_page->scalePage(magnification, roundedIntPoint(viewCenter));
}
- (double)magnification
{
if (_data->_gestureController)
return _data->_gestureController->magnification();
return _data->_page->pageScaleFactor();
}
@end
@implementation WKResponderChainSink
- (id)initWithResponderChain:(NSResponder *)chain
{
self = [super init];
if (!self)
return nil;
_lastResponderInChain = chain;
while (NSResponder *next = [_lastResponderInChain nextResponder])
_lastResponderInChain = next;
[_lastResponderInChain setNextResponder:self];
return self;
}
- (void)detach
{
// This assumes that the responder chain was either unmodified since
// -initWithResponderChain: was called, or was modified in such a way
// that _lastResponderInChain is still in the chain, and self was not
// moved earlier in the chain than _lastResponderInChain.
NSResponder *responderBeforeSelf = _lastResponderInChain;
NSResponder *next = [responderBeforeSelf nextResponder];
for (; next && next != self; next = [next nextResponder])
responderBeforeSelf = next;
// Nothing to be done if we are no longer in the responder chain.
if (next != self)
return;
[responderBeforeSelf setNextResponder:[self nextResponder]];
_lastResponderInChain = nil;
}
- (bool)didReceiveUnhandledCommand
{
return _didReceiveUnhandledCommand;
}
- (void)noResponderFor:(SEL)selector
{
_didReceiveUnhandledCommand = true;
}
- (void)doCommandBySelector:(SEL)selector
{
_didReceiveUnhandledCommand = true;
}
- (BOOL)tryToPerform:(SEL)action with:(id)object
{
_didReceiveUnhandledCommand = true;
return YES;
}
@end