content/browser/web_contents/web_contents_impl.cc - Issue 255843004: Update trackpad pinch-zoom code for corrected scale semantics

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Unified Diff: content/browser/web_contents/web_contents_impl.cc

Issue 255843004: Update trackpad pinch-zoom code for corrected scale semantics (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: Created 6 years, 8 months ago

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Index: content/browser/web_contents/web_contents_impl.cc

diff --git a/content/browser/web_contents/web_contents_impl.cc b/content/browser/web_contents/web_contents_impl.cc

index bddc8de7b9cea9a3582fc124fc4cb921a73d0f2d..791f19f40a0bd9826959efdf3efdd8f5151e401d 100644

--- a/content/browser/web_contents/web_contents_impl.cc

+++ b/content/browser/web_contents/web_contents_impl.cc

@@ -1263,7 +1263,7 @@ bool WebContentsImpl::HandleGestureEvent(

float zoomOutThreshold = (currentPinchZoomStepDelta_ <= 0) ? -nextStep

: backStep;

- totalPinchGestureAmount_ += event.data.pinchUpdate.scale;

+ totalPinchGestureAmount_ += (event.data.pinchUpdate.scale - 1.0);

if (totalPinchGestureAmount_ > zoomInThreshold) {

currentPinchZoomStepDelta_++;

if (delegate_)

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