Index: cc/layers/layer_impl_unittest.cc |
diff --git a/cc/layers/layer_impl_unittest.cc b/cc/layers/layer_impl_unittest.cc |
index c61f2c2ff55d4da42596e91feef54530b60cebb6..7745d9004d32f6d8b1571924953fbb8a7991c3be 100644 |
--- a/cc/layers/layer_impl_unittest.cc |
+++ b/cc/layers/layer_impl_unittest.cc |
@@ -5,6 +5,7 @@ |
#include "cc/layers/layer_impl.h" |
#include "cc/layers/painted_scrollbar_layer_impl.h" |
+#include "cc/layers/solid_color_scrollbar_layer_impl.h" |
#include "cc/output/filter_operation.h" |
#include "cc/output/filter_operations.h" |
#include "cc/test/fake_impl_proxy.h" |
@@ -14,6 +15,7 @@ |
#include "cc/test/test_shared_bitmap_manager.h" |
#include "cc/trees/layer_tree_impl.h" |
#include "cc/trees/single_thread_proxy.h" |
+#include "cc/trees/tree_synchronizer.h" |
#include "testing/gmock/include/gmock/gmock.h" |
#include "testing/gtest/include/gtest/gtest.h" |
#include "third_party/skia/include/effects/SkBlurImageFilter.h" |
@@ -736,5 +738,131 @@ TEST_F(LayerImplScrollTest, SetNewScrollbarParameters) { |
EXPECT_EQ(scroll_offset.x(), horizontal_scrollbar->current_pos()); |
} |
+class LayerImplScrollbarSyncTest : public testing::Test { |
+ public: |
+ enum { |
+ ROOT = 1, |
+ IV_CLIP = 2, |
+ PAGE = 3, |
+ IV_SCROLL = 4, |
+ SCROLLBAR = 5, |
+ OLD_ROOT = 6, |
+ OV_CLIP = 7, |
+ OV_SCROLL = 8, |
+ }; |
+ enum TreeID { |
+ PENDING, |
+ ACTIVE |
+ }; |
+ |
+ LayerImplScrollbarSyncTest() |
+ : host_impl_(settings(), &proxy_, &shared_bitmap_manager_) { |
+ host_impl_.CreatePendingTree(); |
+ |
+ CreateLayers(host_impl_.pending_tree()); |
+ CreateLayers(host_impl_.active_tree()); |
+ } |
+ |
+ void CreateLayers(LayerTreeImpl * tree) { |
+ tree->SetRootLayer(LayerImpl::Create(tree, ROOT)); |
+ LayerImpl * root = tree->root_layer(); |
+ ASSERT_TRUE(root != nullptr); |
+ |
+ int hierarchy[] = {IV_CLIP, PAGE, IV_SCROLL, OLD_ROOT, OV_CLIP, OV_SCROLL}; |
+ LayerImpl * parent = root; |
+ for (int child_id : hierarchy) { |
+ parent->AddChild(LayerImpl::Create(tree, child_id)); |
+ parent = tree->LayerById(child_id); |
+ ASSERT_TRUE(parent != nullptr); |
+ } |
+ |
+ root->AddChild( |
+ SolidColorScrollbarLayerImpl::Create(tree, SCROLLBAR, HORIZONTAL, |
+ 5, 5, false, true)); |
+ } |
+ |
+ LayerImpl* layer(int id, TreeID tree_id) { |
+ LayerTreeImpl* tree = |
+ ((tree_id == PENDING) ? |
+ host_impl_.pending_tree() : host_impl_.active_tree()); |
+ |
+ assert(tree); |
+ return tree->LayerById(id); |
+ } |
+ |
+ bool LayerHasScrollbar(int id, TreeID tree_id) { |
+ return layer(id, tree_id)->HasScrollbar(HORIZONTAL); |
+ } |
+ |
+ ScrollbarLayerImplBase* pending_scrollbar() { |
+ LayerImpl* layer_impl = layer(SCROLLBAR, PENDING); |
+ assert(layer_impl); |
+ return layer_impl->ToScrollbarLayer(); |
+ } |
+ |
+ LayerImpl* pending_root() { |
+ LayerImpl * result = layer(ROOT, PENDING); |
+ assert(result); |
+ return result; |
+ } |
+ |
+ LayerImpl* active_root() { |
+ LayerImpl * result = layer(ROOT, ACTIVE); |
+ assert(result); |
+ return result; |
+ } |
+ |
+ LayerTreeSettings settings() { |
+ LayerTreeSettings settings; |
+ settings.use_pinch_virtual_viewport = true; |
+ return settings; |
+ } |
+ |
+ private: |
+ FakeImplProxy proxy_; |
+ TestSharedBitmapManager shared_bitmap_manager_; |
+ FakeLayerTreeHostImpl host_impl_; |
+}; |
+ |
+TEST_F(LayerImplScrollbarSyncTest, LayerImplBecomesScrollable) { |
+ // In the beginning IV_SCROLL layer is not scrollable. |
+ ASSERT_FALSE(layer(IV_SCROLL, PENDING)->scrollable()); |
+ |
+ // For pinch virtual viewport the clip layer is the inner viewport |
+ // clip layer (IV_CLIP) and the scroll one is the outer viewport |
+ // scroll layer (OV_SCROLL). |
+ pending_scrollbar()->SetScrollLayerAndClipLayerByIds(OV_SCROLL, IV_CLIP); |
+ |
+ ASSERT_TRUE(LayerHasScrollbar(OV_SCROLL, PENDING)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_CLIP, PENDING)); |
+ |
+ // Synchronize with the active tree. |
+ TreeSynchronizer::PushProperties(pending_root(), active_root()); |
+ |
+ ASSERT_TRUE(LayerHasScrollbar(OV_SCROLL, ACTIVE)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_CLIP, ACTIVE)); |
+ |
+ // Make IV_SCROLL layer scrollable. |
+ layer(IV_SCROLL, PENDING)->SetScrollClipLayer(IV_CLIP); |
+ layer(IV_SCROLL, PENDING)->SetNeedsPushProperties(); |
+ ASSERT_TRUE(layer(IV_SCROLL, PENDING)->scrollable()); |
+ |
+ pending_scrollbar()->SetScrollLayerAndClipLayerByIds(OV_SCROLL, IV_CLIP); |
+ |
+ // Now IV_CLIP layer should also receive the scrollbar. |
+ ASSERT_TRUE(LayerHasScrollbar(OV_SCROLL, PENDING)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_CLIP, PENDING)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_SCROLL, PENDING)); |
+ |
+ // Synchronize with the active tree. |
+ TreeSynchronizer::PushProperties(pending_root(), active_root()); |
+ |
+ ASSERT_TRUE(layer(IV_SCROLL, ACTIVE)->scrollable()); |
+ |
+ ASSERT_TRUE(LayerHasScrollbar(OV_SCROLL, ACTIVE)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_CLIP, ACTIVE)); |
+ ASSERT_TRUE(LayerHasScrollbar(IV_SCROLL, ACTIVE)); |
+} |
+ |
} // namespace |
} // namespace cc |