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// Copyright 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 "cc/layers/heads_up_display_layer.h"
#include "cc/layers/layer.h"
#include "cc/test/layer_tree_test.h"
#include "cc/trees/layer_tree_host.h"
namespace cc {
namespace {
class HeadsUpDisplayTest : public LayerTreeTest {
protected:
void InitializeSettings(LayerTreeSettings* settings) override {
// Enable the HUD without requiring text.
settings->initial_debug_state.show_property_changed_rects = true;
}
};
class DrawsContentLayer : public Layer {
public:
static scoped_refptr<DrawsContentLayer> Create() {
return make_scoped_refptr(new DrawsContentLayer());
}
bool DrawsContent() const override { return true; }
private:
DrawsContentLayer() : Layer(LayerSettings()) {}
~DrawsContentLayer() override {}
};
class HudWithRootLayerChange : public HeadsUpDisplayTest {
public:
HudWithRootLayerChange()
: root_layer1_(DrawsContentLayer::Create()),
root_layer2_(DrawsContentLayer::Create()),
num_commits_(0) {}
void BeginTest() override {
root_layer1_->SetBounds(gfx::Size(30, 30));
root_layer2_->SetBounds(gfx::Size(30, 30));
PostSetNeedsCommitToMainThread();
}
void DidCommit() override {
++num_commits_;
ASSERT_TRUE(layer_tree_host()->hud_layer());
switch (num_commits_) {
case 1:
// Change directly to a new root layer.
layer_tree_host()->SetRootLayer(root_layer1_);
break;
case 2:
EXPECT_EQ(root_layer1_.get(), layer_tree_host()->hud_layer()->parent());
// Unset the root layer.
layer_tree_host()->SetRootLayer(nullptr);
break;
case 3:
EXPECT_EQ(0, layer_tree_host()->hud_layer()->parent());
// Change back to the previous root layer.
layer_tree_host()->SetRootLayer(root_layer1_);
break;
case 4:
EXPECT_EQ(root_layer1_.get(), layer_tree_host()->hud_layer()->parent());
// Unset the root layer.
layer_tree_host()->SetRootLayer(nullptr);
break;
case 5:
EXPECT_EQ(0, layer_tree_host()->hud_layer()->parent());
// Change to a new root layer from a null root.
layer_tree_host()->SetRootLayer(root_layer2_);
break;
case 6:
EXPECT_EQ(root_layer2_.get(), layer_tree_host()->hud_layer()->parent());
// Change directly back to the last root layer/
layer_tree_host()->SetRootLayer(root_layer1_);
break;
case 7:
EXPECT_EQ(root_layer1_.get(), layer_tree_host()->hud_layer()->parent());
EndTest();
break;
}
}
void AfterTest() override {}
private:
scoped_refptr<DrawsContentLayer> root_layer1_;
scoped_refptr<DrawsContentLayer> root_layer2_;
int num_commits_;
};
MULTI_THREAD_TEST_F(HudWithRootLayerChange);
} // namespace
} // namespace cc
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