Prevent scaling beyond zoom overview scale. (88ec644d) · Commits · e / os / android_frameworks_base

core/java/android/webkit/ZoomManager.java

+5 −2

Original line number	Diff line number	Diff line
		@@ -580,7 +580,7 @@ class ZoomManager {
		mInvZoomOverviewWidth = 1.0f / width;
		}

		private float getZoomOverviewScale() {
		/* package */ float getZoomOverviewScale() {
		return mWebView.getViewWidth() * mInvZoomOverviewWidth;
		}

		@@ -672,7 +672,10 @@ class ZoomManager {
		}

		public boolean onScale(ScaleGestureDetector detector) {
		float scale = Math.round(detector.getScaleFactor() * mActualScale * 100) * 0.01f;
		// Prevent scaling beyond overview scale.
		float scale = Math.max(
		Math.round(detector.getScaleFactor() * mActualScale * 100) * 0.01f,
		getZoomOverviewScale());
		if (willScaleTriggerZoom(scale)) {
		mPinchToZoomAnimating = true;
		// limit the scale change per step