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/message_loop/message_loop.h"
   9 #include "base/time/time.h"
  10 #include "cc/test/begin_frame_args_test.h"
  11
  12 namespace cc {
  13
  14 FakeExternalBeginFrameSource::FakeExternalBeginFrameSource(double refresh_rate)
  15     : milliseconds_per_frame_(1000.0 / refresh_rate),
  16       is_ready_(false),
  17       weak_ptr_factory_(this) {
  18   DetachFromThread();
  19 }
  20
  21 FakeExternalBeginFrameSource::~FakeExternalBeginFrameSource() {
  22   DCHECK(CalledOnValidThread());
  23 }
  24
  25 void FakeExternalBeginFrameSource::SetClientReady() {
  26   DCHECK(CalledOnValidThread());
  27   is_ready_ = true;
  28 }
  29
  30 void FakeExternalBeginFrameSource::OnNeedsBeginFramesChange(
  31     bool needs_begin_frames) {
  32   DCHECK(CalledOnValidThread());
  33   if (needs_begin_frames) {
  34     PostTestOnBeginFrame();
  35   }
  36 }
  37
  38 void FakeExternalBeginFrameSource::TestOnBeginFrame() {
  39   DCHECK(CalledOnValidThread());
  40   CallOnBeginFrame(CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE));
  41
  42   if (NeedsBeginFrames()) {
  43     PostTestOnBeginFrame();
  44   }
  45 }
  46
  47 void FakeExternalBeginFrameSource::PostTestOnBeginFrame() {
  48   base::MessageLoop::current()->PostDelayedTask(
  49       FROM_HERE, base::Bind(&FakeExternalBeginFrameSource::TestOnBeginFrame,
  50                             weak_ptr_factory_.GetWeakPtr()),
  51       base::TimeDelta::FromMilliseconds(milliseconds_per_frame_));
  52 }
  53
  54 }  // namespace cc