cc/test/fake_external_begin_frame_source.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/test/fake_external_begin_frame_source.h"
   6
   7 #include "base/location.h"
   8 #include "base/single_thread_task_runner.h"
   9 #include "base/thread_task_runner_handle.h"
  10 #include "base/time/time.h"
  11 #include "cc/test/begin_frame_args_test.h"
  12
  13 namespace cc {
  14
  15 FakeExternalBeginFrameSource::FakeExternalBeginFrameSource(double refresh_rate)
  16     : milliseconds_per_frame_(1000.0 / refresh_rate),
  17       is_ready_(false),
  18       weak_ptr_factory_(this) {
  19   DetachFromThread();
  20 }
  21
  22 FakeExternalBeginFrameSource::~FakeExternalBeginFrameSource() {
  23   DCHECK(CalledOnValidThread());
  24 }
  25
  26 void FakeExternalBeginFrameSource::SetClientReady() {
  27   DCHECK(CalledOnValidThread());
  28   is_ready_ = true;
  29 }
  30
  31 void FakeExternalBeginFrameSource::OnNeedsBeginFramesChange(
  32     bool needs_begin_frames) {
  33   DCHECK(CalledOnValidThread());
  34   if (needs_begin_frames) {
  35     PostTestOnBeginFrame();
  36   }
  37 }
  38
  39 void FakeExternalBeginFrameSource::TestOnBeginFrame() {
  40   DCHECK(CalledOnValidThread());
  41   CallOnBeginFrame(CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE));
  42
  43   if (NeedsBeginFrames()) {
  44     PostTestOnBeginFrame();
  45   }
  46 }
  47
  48 void FakeExternalBeginFrameSource::PostTestOnBeginFrame() {
  49   base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
  50       FROM_HERE, base::Bind(&FakeExternalBeginFrameSource::TestOnBeginFrame,
  51                             weak_ptr_factory_.GetWeakPtr()),
  52       base::TimeDelta::FromMilliseconds(milliseconds_per_frame_));
  53 }
  54
  55 }  // namespace cc