1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 28 #if USE(ACCELERATED_COMPOSITING) 29 30 #import "WebTiledLayer.h" 31 32 #import "GraphicsContext.h" 33 #import "GraphicsLayerCA.h" 34 #import "PlatformCALayer.h" 35 #import <wtf/UnusedParam.h> 36 37 using namespace WebCore; 38 39 @implementation WebTiledLayer 40 41 // Set a zero duration for the fade in of tiles 42 + (CFTimeInterval)fadeDuration 43 { 44 return 0; 45 } 46 47 // Make sure that tiles are drawn on the main thread 48 + (BOOL)shouldDrawOnMainThread 49 { 50 return YES; 51 } 52 53 // Disable default animations 54 - (id<CAAction>)actionForKey:(NSString *)key 55 { 56 UNUSED_PARAM(key); 57 return nil; 58 } 59 60 - (void)setNeedsDisplay 61 { 62 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 63 if (layer && layer->owner() && layer->owner()->platformCALayerDrawsContent()) 64 [super setNeedsDisplay]; 65 } 66 67 - (void)setNeedsDisplayInRect:(CGRect)dirtyRect 68 { 69 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 70 if (layer) 71 setLayerNeedsDisplayInRect(self, layer->owner(), dirtyRect); 72 } 73 74 - (void)display 75 { 76 [super display]; 77 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 78 if (layer && layer->owner()) 79 layer->owner()->platformCALayerLayerDidDisplay(self); 80 } 81 82 - (void)drawInContext:(CGContextRef)context 83 { 84 PlatformCALayer* layer = PlatformCALayer::platformCALayer(self); 85 if (layer) 86 drawLayerContents(context, self, layer); 87 } 88 89 @end // implementation WebTiledLayer 90 91 #endif // USE(ACCELERATED_COMPOSITING) 92