Unit Test for WebView animating in and out of screen

android_webview/browser/test/fake_window.cc

 // Copyright 2014 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 "android_webview/browser/test/fake_window.h"
 
 #include "android_webview/browser/browser_view_renderer.h"
-#include "android_webview/public/browser/draw_gl.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace android_webview {
 
 class FakeWindow::ScopedMakeCurrent {
  public:
   ScopedMakeCurrent(FakeWindow* view_root) : view_root_(view_root) {
@@ skipping 80 matching lines @@
     functor_->DrawGL(&process_info);
   }
   hooks_->DidProcessOnRT(functor_);
 
   if (sync)
     sync->Signal();
 }
 
 void FakeWindow::PostInvalidate() {
   CheckCurrentlyOnUIThread();
-  if (on_draw_hardware_pending_)
+  if (on_draw_hardware_pending_) {
+    base::MessageLoopProxy::current()->PostTask(

[hush (inactive), 2015/03/17 18:38:18]

I need this postTask so that the onDraws won't be missed.
Looks like I should set the ContinuousInvalidate bit at the right time...

+        FROM_HERE, base::Bind(&FakeWindow::PostInvalidate,
+                              weak_ptr_factory_.GetWeakPtr()));
     return;
+  }
   on_draw_hardware_pending_ = true;
   base::MessageLoopProxy::current()->PostTask(
       FROM_HERE,
       base::Bind(&FakeWindow::OnDrawHardware, weak_ptr_factory_.GetWeakPtr()));
 }
 
 void FakeWindow::OnDrawHardware() {
   CheckCurrentlyOnUIThread();
   DCHECK(on_draw_hardware_pending_);
   on_draw_hardware_pending_ = false;
 
+  view_->PrepareToDraw(gfx::Vector2d(), location_);
   hooks_->WillOnDraw();
-  view_->PrepareToDraw(gfx::Vector2d(), location_);
   bool success = view_->OnDrawHardware();
   hooks_->DidOnDraw(success);
   if (success) {
     CreateRenderThreadIfNeeded();
 
     base::WaitableEvent completion(true, false);
     render_thread_loop_->PostTask(
         FROM_HERE, base::Bind(&FakeWindow::DrawFunctorOnRT,
                               base::Unretained(this), &completion));
     completion.Wait();
@@ skipping 15 matching lines @@
   }
   sync->Signal();
 
   AwDrawGLInfo draw_info;
   draw_info.version = kAwDrawGLInfoVersion;
   draw_info.mode = AwDrawGLInfo::kModeDraw;
   draw_info.clip_left = location.x();
   draw_info.clip_top = location.y();
   draw_info.clip_right = location.x() + location.width();
   draw_info.clip_bottom = location.y() + location.height();
-  draw_info.width = surface_size_.width();
-  draw_info.height = surface_size_.height();
-  draw_info.is_layer = false;
 
-  draw_info.transform[0] = 1.0;
-  draw_info.transform[1] = 0.0;
-  draw_info.transform[2] = 0.0;
-  draw_info.transform[3] = 0.0;
+  if (!hooks_->WillDrawOnRT(functor_, draw_info))
+    return;
 
-  draw_info.transform[4] = 0.0;
-  draw_info.transform[5] = 1.0;
-  draw_info.transform[6] = 0.0;
-  draw_info.transform[7] = 0.0;
-
-  draw_info.transform[8] = 0.0;
-  draw_info.transform[9] = 0.0;
-  draw_info.transform[10] = 1.0;
-  draw_info.transform[11] = 0.0;
-
-  draw_info.transform[12] = 0.0;
-  draw_info.transform[13] = 0.0;
-  draw_info.transform[14] = 0.0;
-  draw_info.transform[15] = 1.0;
-
-  hooks_->WillDrawOnRT(functor_);
   {
     ScopedMakeCurrent make_current(this);
     functor_->DrawGL(&draw_info);
   }
   hooks_->DidDrawOnRT(functor_);
 }
 
 void FakeWindow::CheckCurrentlyOnUIThread() {
   DCHECK(ui_checker_.CalledOnValidSequencedThread());
 }
@@ skipping 37 matching lines @@
     surface_ = nullptr;
   }
   sync->Signal();
 }
 
 void FakeWindow::CheckCurrentlyOnRT() {
   DCHECK(rt_checker_.CalledOnValidSequencedThread());
 }
 
 }  // namespace android_webview