Implement support for touch-action: pan-x/pan-y in chromium
BUG=321643
Review URL: https://codereview.chromium.org/93733005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242147 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/content/renderer/render_widget.cc b/content/renderer/render_widget.cc
index 852e94e1..2b58b7e0 100644
--- a/content/renderer/render_widget.cc
+++ b/content/renderer/render_widget.cc
@@ -2798,17 +2798,22 @@
if (!handling_touchstart_event_)
return;
- content::TouchAction content_touch_action;
- switch(web_touch_action) {
- case blink::WebTouchActionNone:
- content_touch_action = content::TOUCH_ACTION_NONE;
- break;
- case blink::WebTouchActionAuto:
- content_touch_action = content::TOUCH_ACTION_AUTO;
- break;
- default:
- NOTREACHED();
- }
+ // Verify the same values are used by the types so we can cast between them.
+ COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_AUTO) ==
+ blink::WebTouchActionAuto,
+ enum_values_must_match_for_touch_action);
+ COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_NONE) ==
+ blink::WebTouchActionNone,
+ enum_values_must_match_for_touch_action);
+ COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_PAN_X) ==
+ blink::WebTouchActionPanX,
+ enum_values_must_match_for_touch_action);
+ COMPILE_ASSERT(static_cast<blink::WebTouchAction>(TOUCH_ACTION_PAN_Y) ==
+ blink::WebTouchActionPanY,
+ enum_values_must_match_for_touch_action);
+
+ content::TouchAction content_touch_action =
+ static_cast<content::TouchAction>(web_touch_action);
Send(new InputHostMsg_SetTouchAction(routing_id_, content_touch_action));
}
