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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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71 virtual WebSize getViewportSize() const { return WebSize(); } | 71 virtual WebSize getViewportSize() const { return WebSize(); } |
72 | 72 |
73 virtual void setDeviceScaleFactor(float) {} | 73 virtual void setDeviceScaleFactor(float) {} |
74 | 74 |
75 // Sets the background color for the viewport. | 75 // Sets the background color for the viewport. |
76 virtual void setBackgroundColor(WebColor) {} | 76 virtual void setBackgroundColor(WebColor) {} |
77 | 77 |
78 // Sets the background transparency for the viewport. The default is 'false'. | 78 // Sets the background transparency for the viewport. The default is 'false'. |
79 virtual void setHasTransparentBackground(bool) {} | 79 virtual void setHasTransparentBackground(bool) {} |
80 | 80 |
81 // Sets whether this view is visible. In threaded mode, a view that is not vis
ible will not | 81 // Sets whether this view is visible. In threaded mode, a view that is not |
82 // composite or trigger updateAnimations() or layout() calls until it becomes
visible. | 82 // visible will not composite or trigger updateAnimations() or layout() calls |
| 83 // until it becomes visible. |
83 virtual void setVisible(bool) {} | 84 virtual void setVisible(bool) {} |
84 | 85 |
85 // Sets the current page scale factor and minimum / maximum limits. Both limit
s are initially 1 (no page scale allowed). | 86 // Sets the current page scale factor and minimum / maximum limits. Both |
| 87 // limits are initially 1 (no page scale allowed). |
86 virtual void setPageScaleFactorAndLimits(float pageScaleFactor, | 88 virtual void setPageScaleFactorAndLimits(float pageScaleFactor, |
87 float minimum, | 89 float minimum, |
88 float maximum) {} | 90 float maximum) {} |
89 | 91 |
90 // Starts an animation of the page scale to a target scale factor and scroll o
ffset. | 92 // Starts an animation of the page scale to a target scale factor and scroll |
91 // If useAnchor is true, destination is a point on the screen that will remain
fixed for the duration of the animation. | 93 // offset. |
| 94 // If useAnchor is true, destination is a point on the screen that will remain |
| 95 // fixed for the duration of the animation. |
92 // If useAnchor is false, destination is the final top-left scroll position. | 96 // If useAnchor is false, destination is the final top-left scroll position. |
93 virtual void startPageScaleAnimation(const WebPoint& destination, | 97 virtual void startPageScaleAnimation(const WebPoint& destination, |
94 bool useAnchor, | 98 bool useAnchor, |
95 float newPageScale, | 99 float newPageScale, |
96 double durationSec) {} | 100 double durationSec) {} |
97 | 101 |
98 // Returns true if the page scale animation had started. | 102 // Returns true if the page scale animation had started. |
99 virtual bool hasPendingPageScaleAnimation() const { return false; } | 103 virtual bool hasPendingPageScaleAnimation() const { return false; } |
100 | 104 |
101 virtual void heuristicsForGpuRasterizationUpdated(bool) {} | 105 virtual void heuristicsForGpuRasterizationUpdated(bool) {} |
102 | 106 |
103 // Sets the amount that the top controls are showing, from 0 (hidden) to 1 | 107 // Sets the amount that the top controls are showing, from 0 (hidden) to 1 |
104 // (fully shown). | 108 // (fully shown). |
105 virtual void setTopControlsShownRatio(float) {} | 109 virtual void setTopControlsShownRatio(float) {} |
106 | 110 |
107 // Update top controls permitted and current states | 111 // Update top controls permitted and current states |
108 virtual void updateTopControlsState(WebTopControlsState constraints, | 112 virtual void updateTopControlsState(WebTopControlsState constraints, |
109 WebTopControlsState current, | 113 WebTopControlsState current, |
110 bool animate) {} | 114 bool animate) {} |
111 | 115 |
112 // Set top controls height. If |shrinkViewport| is set to true, then Blink shr
unk the viewport clip | 116 // Set top controls height. If |shrinkViewport| is set to true, then Blink |
113 // layers by the top controls height. | 117 // shrunk the viewport clip layers by the top controls height. |
114 virtual void setTopControlsHeight(float height, bool shrinkViewport) {} | 118 virtual void setTopControlsHeight(float height, bool shrinkViewport) {} |
115 | 119 |
116 // Flow control and scheduling --------------------------------------- | 120 // Flow control and scheduling --------------------------------------- |
117 | 121 |
118 // Indicates that blink needs a BeginFrame, but that nothing might actually be
dirty. | 122 // Indicates that blink needs a BeginFrame, but that nothing might actually be |
| 123 // dirty. |
119 virtual void setNeedsBeginFrame() {} | 124 virtual void setNeedsBeginFrame() {} |
120 | 125 |
121 // Indicates that blink needs a BeginFrame and to update compositor state. | 126 // Indicates that blink needs a BeginFrame and to update compositor state. |
122 virtual void setNeedsCompositorUpdate() {} | 127 virtual void setNeedsCompositorUpdate() {} |
123 | 128 |
124 // Relays the end of a fling animation. | 129 // Relays the end of a fling animation. |
125 virtual void didStopFlinging() {} | 130 virtual void didStopFlinging() {} |
126 | 131 |
127 // Run layout and paint of all pending document changes asynchronously. | 132 // Run layout and paint of all pending document changes asynchronously. |
128 // The caller is resposible for keeping the WebLayoutAndPaintAsyncCallback obj
ect | 133 // The caller is resposible for keeping the WebLayoutAndPaintAsyncCallback |
129 // alive until it is called. | 134 // object alive until it is called. |
130 virtual void layoutAndPaintAsync(WebLayoutAndPaintAsyncCallback*) {} | 135 virtual void layoutAndPaintAsync(WebLayoutAndPaintAsyncCallback*) {} |
131 | 136 |
132 // The caller is responsible for keeping the WebCompositeAndReadbackAsyncCallb
ack | 137 // The caller is responsible for keeping the |
133 // object alive until it is called. | 138 // WebCompositeAndReadbackAsyncCallback object alive until it is called. |
134 virtual void compositeAndReadbackAsync( | 139 virtual void compositeAndReadbackAsync( |
135 WebCompositeAndReadbackAsyncCallback*) {} | 140 WebCompositeAndReadbackAsyncCallback*) {} |
136 | 141 |
137 // Prevents updates to layer tree from becoming visible. | 142 // Prevents updates to layer tree from becoming visible. |
138 virtual void setDeferCommits(bool deferCommits) {} | 143 virtual void setDeferCommits(bool deferCommits) {} |
139 | 144 |
140 // Identify key layers to the compositor when using the pinch virtual viewport
. | 145 // Identify key layers to the compositor when using the pinch virtual |
| 146 // viewport. |
141 virtual void registerViewportLayers( | 147 virtual void registerViewportLayers( |
142 const WebLayer* overscrollElasticityLayer, | 148 const WebLayer* overscrollElasticityLayer, |
143 const WebLayer* pageScaleLayer, | 149 const WebLayer* pageScaleLayer, |
144 const WebLayer* innerViewportScrollLayer, | 150 const WebLayer* innerViewportScrollLayer, |
145 const WebLayer* outerViewportScrollLayer) {} | 151 const WebLayer* outerViewportScrollLayer) {} |
146 virtual void clearViewportLayers() {} | 152 virtual void clearViewportLayers() {} |
147 | 153 |
148 // Used to update the active selection bounds. | 154 // Used to update the active selection bounds. |
149 virtual void registerSelection(const WebSelection&) {} | 155 virtual void registerSelection(const WebSelection&) {} |
150 virtual void clearSelection() {} | 156 virtual void clearSelection() {} |
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176 // Toggles the debug borders on layers | 182 // Toggles the debug borders on layers |
177 virtual void setShowDebugBorders(bool) {} | 183 virtual void setShowDebugBorders(bool) {} |
178 | 184 |
179 // Toggles scroll bottleneck rects on the HUD layer | 185 // Toggles scroll bottleneck rects on the HUD layer |
180 virtual void setShowScrollBottleneckRects(bool) {} | 186 virtual void setShowScrollBottleneckRects(bool) {} |
181 }; | 187 }; |
182 | 188 |
183 } // namespace blink | 189 } // namespace blink |
184 | 190 |
185 #endif // WebLayerTreeView_h | 191 #endif // WebLayerTreeView_h |
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