OverscrollGlow for mainThread-{CHROMIUM CHANGES}

content/renderer/render_widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/render_widget.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 2213 matching lines @@
   } else if (event.type == WebInputEvent::GestureLongPress) {
     DCHECK(webwidget_);
     if (webwidget_->textInputInfo().value.isEmpty())
       UpdateTextInputState(NO_SHOW_IME, FROM_NON_IME);
     else
       UpdateTextInputState(SHOW_IME_IF_NEEDED, FROM_NON_IME);
   }
 #endif
 }
 
+void RenderWidget::didOverScrollOnMainThread(
+    const float& unusedDeltaX,
+    const float& unusedDeltaY,
+    const float& accumaltedRootOverScrollX,
+    const float& accumaltedRootOverScrollY,
+    const float& positionX,
+    const float& positionY,
+    const float& velocityX,
+    const float& velocityY) {
+  gfx::Vector2dF unusedDelta(unusedDeltaX, unusedDeltaY);
+  gfx::Vector2dF accumaltedRootOverScroll(accumaltedRootOverScrollX,
+                                          accumaltedRootOverScrollY);
+  gfx::Vector2dF flingVelocity(velocityX, velocityY);
+  gfx::PointF eventPoint(positionX, positionY);
+  Send(new ViewHostMsg_DidOverScrollOnMainThread(routing_id(), unusedDelta,

[jdduke (slow), 2015/04/24 16:57:23]

Can't we just resuse the existing InputHostMsg_DidOverscroll message?
https://code.google.com/p/chromium/codesearch#chromium/src/content/common/inp...

[MuVen, 2015/04/27 09:49:15]

we can call InputHostMsg_DidOverscroll from Render_view_impl itself ?

[jdduke (slow), 2015/04/27 15:00:49]

That's probably fine. To be honest the distribution of methods between RW/RVI
doesn't seem to be very consistent. I guess the argument to put it in
RenderWidget would be that the message gets handled by RenderWidgetHostImp (by
way of the InputRouter), so I have a slight preference for putting the
implementation there.

+                                                 accumaltedRootOverScroll,
+                                                 flingVelocity, eventPoint));
+}
+
 void RenderWidget::StartCompositor() {
   // For widgets that are never visible, we don't need the compositor to run
   // at all.
   if (never_visible_)
     return;
   // In tests without a RenderThreadImpl, don't set ready as this kicks
   // off creating output surfaces that the test can't create.
   if (!RenderThreadImpl::current())
     return;
   compositor_->StartCompositor();
@@ skipping 196 matching lines @@
 void RenderWidget::RegisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.AddObserver(frame);
 }
 
 void RenderWidget::UnregisterVideoHoleFrame(RenderFrameImpl* frame) {
   video_hole_frames_.RemoveObserver(frame);
 }
 #endif  // defined(VIDEO_HOLE)
 
 }  // namespace content