chromium/cc/trees/layer_tree_host_unittest_capture_content.cc

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "cc/trees/layer_tree_host.h"

#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_picture_layer.h"
#include "cc/test/layer_tree_test.h"
#include "cc/trees/transform_node.h"
#include "skia/ext/font_utils.h"
#include "third_party/skia/include/core/SkFont.h"
#include "third_party/skia/include/core/SkTextBlob.h"

namespace cc {
namespace {

class FakeTextHolder { … };

class FakeCaptureContentLayerClient : public FakeContentLayerClient { … };

// These tests are for LayerTreeHost::CaptureContent().
class LayerTreeHostCaptureContentTest : public LayerTreeTest { … };

class LayerTreeHostCaptureContentTestBasic
    : public LayerTreeHostCaptureContentTest { … };

// Test that one DrawTextBlobOp is on-screen, another isn't.
class LayerTreeHostCaptureContentTestOneVisible
    : public LayerTreeHostCaptureContentTestBasic { … };

SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostCaptureContentTestOneVisible);

// Test that both DrawTextBlobOps are on-screen.
class LayerTreeHostCaptureContentTestTwoVisible
    : public LayerTreeHostCaptureContentTestBasic { … };

SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostCaptureContentTestTwoVisible);

// Base class for two layers tests.
class LayerTreeHostCaptureContentTestTwoLayers
    : public LayerTreeHostCaptureContentTestBasic { … };

// Test that one layer is within screen, another isn't.
class LayerTreeHostCaptureContentTestOneLayerVisible
    : public LayerTreeHostCaptureContentTestTwoLayers { … };

SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostCaptureContentTestOneLayerVisible);

// Test that the upper layer is partially on-screen, the under layer fully
// occupies the screen, all layer's on-screen content are returned even the
// upper layer is opaque.
class LayerTreeHostCaptureContentTestTwoLayersVisible
    : public LayerTreeHostCaptureContentTestTwoLayers { … };

SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostCaptureContentTestTwoLayersVisible);

// Test that the upper layer is transparent, the under layer fully occupies the
// screen, all layer's on-screen content are returned.
class LayerTreeHostCaptureContentTestTwoLayersVisibleAndTransparent
    : public LayerTreeHostCaptureContentTestTwoLayersVisible { … };

SINGLE_AND_MULTI_THREAD_TEST_F(
    LayerTreeHostCaptureContentTestTwoLayersVisibleAndTransparent);

// Test that the upper layer is partially visible, but doesn't overlay screen in
// either direction, the under layer's content will be captured even it is fully
// overlaid by the upper layer.
class LayerTreeHostCaptureContentTestUpperLayerPartialOverlay
    : public LayerTreeHostCaptureContentTestTwoLayers { … };

SINGLE_AND_MULTI_THREAD_TEST_F(
    LayerTreeHostCaptureContentTestUpperLayerPartialOverlay);

}  // namespace
}  // namespace cc