Source/core/frame/PinchViewport.h - Issue 889803004: Add touchpad pinch zoom support to Blink

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Unified Diff: Source/core/frame/PinchViewport.h

Issue 889803004: Add touchpad pinch zoom support to Blink (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Update tests Created 5 years, 10 months ago

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Index: Source/core/frame/PinchViewport.h

diff --git a/Source/core/frame/PinchViewport.h b/Source/core/frame/PinchViewport.h

index 8070e60f267ae4d0cac07008079974048db2c1c5..20d15335b4b2fe76d046435e8db87975ac549b35 100644

--- a/Source/core/frame/PinchViewport.h

+++ b/Source/core/frame/PinchViewport.h

@@ -106,6 +106,11 @@ public:

void setScale(float);

float scale() const { return m_scale; }

+ // Update scale factor, magnifying or minifying by magnifyDelta, centered around

+ // the point specified by anchor in window coordinates. Returns false if page

+ // scale factor is left unchanged.

+ bool magnifyScaleAroundAnchor(float magnifyDelta, const FloatPoint& anchor);

void registerLayersWithTreeView(blink::WebLayerTreeView*) const;

void clearLayersForTreeView(blink::WebLayerTreeView*) const;