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authordominikg@chromium.org <dominikg@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-09-12 01:51:15 +0000
committerdominikg@chromium.org <dominikg@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-09-12 01:51:15 +0000
commit1e1dd1852bb2593ed515ffcaec8f21bfa7bf9958 (patch)
tree8573c8bedd916019b657ce59f3f6138caa8809a7 /content/port
parent567261abf7d6509f9ae2a47842d13039b9c63b5e (diff)
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Synthetic pinch-to-zoom gesture.
Add implementation of synthetic pinch-to-zoom gesture, exposed in JavaScript through chrome.gpuBenchmarking.pinchBy(). A pinch gesture is defined by four parameters: 1) whether to zoom in or out, 2) the number of pixels to cover during the gesture, 3,4) the x/y coordinates of the anchor point of the gesture. BUG=264810 Review URL: https://chromiumcodereview.appspot.com/23587002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@222696 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'content/port')
-rw-r--r--content/port/browser/render_widget_host_view_port.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/content/port/browser/render_widget_host_view_port.h b/content/port/browser/render_widget_host_view_port.h
index 6db6231..d13a125 100644
--- a/content/port/browser/render_widget_host_view_port.h
+++ b/content/port/browser/render_widget_host_view_port.h
@@ -269,6 +269,11 @@ class CONTENT_EXPORT RenderWidgetHostViewPort : public RenderWidgetHostView,
bool scroll_down, int pixels_to_scroll, int mouse_event_x,
int mouse_event_y) = 0;
+ // Asks the view to create a synthetic gesture that will be used to
+ // simulate a user-initiated pinch-to-zoom.
+ virtual SyntheticGesture* CreatePinchGesture(
+ bool zoom_in, int pixels_to_move, int anchor_x, int anchor_y) = 0;
+
virtual void SetHasHorizontalScrollbar(bool has_horizontal_scrollbar) = 0;
virtual void SetScrollOffsetPinning(
bool is_pinned_to_left, bool is_pinned_to_right) = 0;