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mojo/services/view_manager/view_manager_service_unittest.cc

Index: mojo/services/view_manager/view_manager_service_unittest.cc
diff --git a/mojo/services/view_manager/view_manager_service_unittest.cc b/mojo/services/view_manager/view_manager_service_unittest.cc
new file mode 100644
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+++ b/mojo/services/view_manager/view_manager_service_unittest.cc
@@ -0,0 +1,471 @@
+// Copyright 2014 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 <string>
+#include <vector>
+
+#include "base/message_loop/message_loop.h"
+#include "mojo/converters/geometry/geometry_type_converters.h"
+#include "mojo/public/interfaces/application/service_provider.mojom.h"
+#include "mojo/services/view_manager/client_connection.h"
+#include "mojo/services/view_manager/connection_manager.h"
+#include "mojo/services/view_manager/connection_manager_delegate.h"
+#include "mojo/services/view_manager/display_manager.h"
+#include "mojo/services/view_manager/ids.h"
+#include "mojo/services/view_manager/server_view.h"
+#include "mojo/services/view_manager/test_change_tracker.h"
+#include "mojo/services/view_manager/view_manager_service_impl.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/mojo_services/src/view_manager/public/cpp/types.h"
+#include "third_party/mojo_services/src/view_manager/public/cpp/util.h"
+#include "third_party/mojo_services/src/view_manager/public/interfaces/view_manager.mojom.h"
+#include "third_party/mojo_services/src/window_manager/public/interfaces/window_manager.mojom.h"
+#include "third_party/mojo_services/src/window_manager/public/interfaces/window_manager_internal.mojom.h"
+#include "ui/gfx/geometry/rect.h"
+
+using mojo::Array;
+using mojo::ERROR_CODE_NONE;
+using mojo::InterfaceRequest;
+using mojo::ServiceProvider;
+using mojo::ServiceProviderPtr;
+using mojo::String;
+using mojo::ViewDataPtr;
+
+namespace view_manager {
+namespace {
+
+// -----------------------------------------------------------------------------
+
+// ViewManagerClient implementation that logs all calls to a TestChangeTracker.
+// TODO(sky): refactor so both this and ViewManagerServiceAppTest share code.
+class TestViewManagerClient : public mojo::ViewManagerClient {
+ public:
+  TestViewManagerClient() {}
+  ~TestViewManagerClient() override {}
+
+  TestChangeTracker* tracker() { return &tracker_; }
+
+ private:
+  // ViewManagerClient:
+  void OnEmbed(uint16_t connection_id,
+               const String& embedder_url,
+               ViewDataPtr root,
+               mojo::ViewManagerServicePtr view_manager_service,
+               InterfaceRequest<ServiceProvider> services,
+               ServiceProviderPtr exposed_services,
+               mojo::ScopedMessagePipeHandle window_manager_pipe) override {
+    tracker_.OnEmbed(connection_id, embedder_url, root.Pass());
+  }
+  void OnEmbeddedAppDisconnected(uint32_t view) override {
+    tracker_.OnEmbeddedAppDisconnected(view);
+  }
+  void OnViewBoundsChanged(uint32_t view,
+                           mojo::RectPtr old_bounds,
+                           mojo::RectPtr new_bounds) override {
+    tracker_.OnViewBoundsChanged(view, old_bounds.Pass(), new_bounds.Pass());
+  }
+  void OnViewViewportMetricsChanged(
+      mojo::ViewportMetricsPtr old_metrics,
+      mojo::ViewportMetricsPtr new_metrics) override {
+    tracker_.OnViewViewportMetricsChanged(old_metrics.Pass(),
+                                          new_metrics.Pass());
+  }
+  void OnViewHierarchyChanged(uint32_t view,
+                              uint32_t new_parent,
+                              uint32_t old_parent,
+                              Array<ViewDataPtr> views) override {
+    tracker_.OnViewHierarchyChanged(view, new_parent, old_parent, views.Pass());
+  }
+  void OnViewReordered(uint32_t view_id,
+                       uint32_t relative_view_id,
+                       mojo::OrderDirection direction) override {
+    tracker_.OnViewReordered(view_id, relative_view_id, direction);
+  }
+  void OnViewDeleted(uint32_t view) override { tracker_.OnViewDeleted(view); }
+  void OnViewVisibilityChanged(uint32_t view, bool visible) override {
+    tracker_.OnViewVisibilityChanged(view, visible);
+  }
+  void OnViewDrawnStateChanged(uint32_t view, bool drawn) override {
+    tracker_.OnViewDrawnStateChanged(view, drawn);
+  }
+  void OnViewSharedPropertyChanged(uint32_t view,
+                                   const String& name,
+                                   Array<uint8_t> new_data) override {
+    tracker_.OnViewSharedPropertyChanged(view, name, new_data.Pass());
+  }
+  void OnViewInputEvent(uint32_t view,
+                        mojo::EventPtr event,
+                        const mojo::Callback<void()>& callback) override {
+    tracker_.OnViewInputEvent(view, event.Pass());
+  }
+  void OnPerformAction(uint32_t view_id,
+                       const String& name,
+                       const mojo::Callback<void(bool)>& callback) override {}
+
+  TestChangeTracker tracker_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestViewManagerClient);
+};
+
+// -----------------------------------------------------------------------------
+
+// ClientConnection implementation that vends TestViewManagerClient.
+class TestClientConnection : public ClientConnection {
+ public:
+  explicit TestClientConnection(scoped_ptr<ViewManagerServiceImpl> service_impl)
+      : ClientConnection(service_impl.Pass(), &client_) {}
+  ~TestClientConnection() override {}
+
+  TestViewManagerClient* client() { return &client_; }
+
+ private:
+  TestViewManagerClient client_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestClientConnection);
+};
+
+// -----------------------------------------------------------------------------
+
+// Empty implementation of ConnectionManagerDelegate.
+class TestConnectionManagerDelegate : public ConnectionManagerDelegate {
+ public:
+  TestConnectionManagerDelegate() : last_connection_(nullptr) {}
+  ~TestConnectionManagerDelegate() override {}
+
+  TestViewManagerClient* last_client() {
+    return last_connection_ ? last_connection_->client() : nullptr;
+  }
+
+  TestClientConnection* last_connection() { return last_connection_; }
+
+ private:
+  // ConnectionManagerDelegate:
+  void OnLostConnectionToWindowManager() override {}
+
+  ClientConnection* CreateClientConnectionForEmbedAtView(
+      ConnectionManager* connection_manager,
+      mojo::InterfaceRequest<mojo::ViewManagerService> service_request,
+      mojo::ConnectionSpecificId creator_id,
+      const std::string& creator_url,
+      const std::string& url,
+      const ViewId& root_id) override {
+    scoped_ptr<ViewManagerServiceImpl> service(new ViewManagerServiceImpl(
+        connection_manager, creator_id, creator_url, url, root_id));
+    last_connection_ = new TestClientConnection(service.Pass());
+    return last_connection_;
+  }
+  ClientConnection* CreateClientConnectionForEmbedAtView(
+      ConnectionManager* connection_manager,
+      mojo::InterfaceRequest<mojo::ViewManagerService> service_request,
+      mojo::ConnectionSpecificId creator_id,
+      const std::string& creator_url,
+      const ViewId& root_id,
+      mojo::ViewManagerClientPtr client) override {
+    NOTIMPLEMENTED();
+    return nullptr;
+  }
+
+  TestClientConnection* last_connection_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestConnectionManagerDelegate);
+};
+
+// -----------------------------------------------------------------------------
+
+// Empty implementation of DisplayManager.
+class TestDisplayManager : public DisplayManager {
+ public:
+  TestDisplayManager() {}
+  ~TestDisplayManager() override {}
+
+  // DisplayManager:
+  void Init(ConnectionManager* connection_manager) override {}
+  void SchedulePaint(const ServerView* view, const gfx::Rect& bounds) override {
+  }
+  void SetViewportSize(const gfx::Size& size) override {}
+  const mojo::ViewportMetrics& GetViewportMetrics() override {
+    return display_metrices_;
+  }
+
+ private:
+  mojo::ViewportMetrics display_metrices_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestDisplayManager);
+};
+
+// -----------------------------------------------------------------------------
+
+// Empty implementation of WindowManagerInternal.
+class TestWindowManagerInternal : public mojo::WindowManagerInternal {
+ public:
+  TestWindowManagerInternal() {}
+  ~TestWindowManagerInternal() override {}
+
+  // WindowManagerInternal:
+  void CreateWindowManagerForViewManagerClient(
+      uint16_t connection_id,
+      mojo::ScopedMessagePipeHandle window_manager_pipe) override {}
+  void SetViewManagerClient(mojo::ScopedMessagePipeHandle) override {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestWindowManagerInternal);
+};
+
+}  // namespace
+
+// -----------------------------------------------------------------------------
+
+class ViewManagerServiceTest : public testing::Test {
+ public:
+  ViewManagerServiceTest() : wm_client_(nullptr) {}
+  ~ViewManagerServiceTest() override {}
+
+  // ViewManagerServiceImpl for the window manager.
+  ViewManagerServiceImpl* wm_connection() {
+    return connection_manager_->GetConnection(1);
+  }
+
+  TestViewManagerClient* last_view_manager_client() {
+    return delegate_.last_client();
+  }
+
+  TestClientConnection* last_client_connection() {
+    return delegate_.last_connection();
+  }
+
+  ConnectionManager* connection_manager() { return connection_manager_.get(); }
+
+  TestViewManagerClient* wm_client() { return wm_client_; }
+
+ protected:
+  // testing::Test:
+  void SetUp() override {
+    connection_manager_.reset(new ConnectionManager(
+        &delegate_, scoped_ptr<DisplayManager>(new TestDisplayManager),
+        &wm_internal_));
+    scoped_ptr<ViewManagerServiceImpl> service(new ViewManagerServiceImpl(
+        connection_manager_.get(), kInvalidConnectionId, std::string(),
+        std::string("mojo:window_manager"), RootViewId()));
+    scoped_ptr<TestClientConnection> client_connection(
+        new TestClientConnection(service.Pass()));
+    wm_client_ = client_connection->client();
+    ASSERT_TRUE(wm_client_ != nullptr);
+    connection_manager_->SetWindowManagerClientConnection(
+        client_connection.Pass());
+    ASSERT_TRUE(wm_connection() != nullptr);
+    ASSERT_TRUE(wm_connection()->root() != nullptr);
+  }
+
+ private:
+  // TestViewManagerClient that is used for the WM connection.
+  TestViewManagerClient* wm_client_;
+
+  TestWindowManagerInternal wm_internal_;
+  TestConnectionManagerDelegate delegate_;
+  scoped_ptr<ConnectionManager> connection_manager_;
+  base::MessageLoop message_loop_;
+
+  DISALLOW_COPY_AND_ASSIGN(ViewManagerServiceTest);
+};
+
+namespace {
+
+const ServerView* GetFirstCloned(const ServerView* view) {
+  for (const ServerView* child : view->GetChildren()) {
+    if (child->id() == ClonedViewId())
+      return child;
+  }
+  return nullptr;
+}
+
+// Provides common setup for animation tests. Creates the following views:
+// 0,1 (the root, provided by view manager)
+//   1,1 the second connection is embedded here (view owned by wm_connection()).
+//     2,1 bounds=1,2 11x22
+//       2,2 bounds=2,3 6x7
+//         2,3 bounds=3,4 6x7
+// CloneAndAnimate() is invoked for 2,2.
+void SetUpAnimate1(ViewManagerServiceTest* test, ViewId* embed_view_id) {
+  *embed_view_id = ViewId(test->wm_connection()->id(), 1);
+  EXPECT_EQ(ERROR_CODE_NONE, test->wm_connection()->CreateView(*embed_view_id));
+  EXPECT_TRUE(test->wm_connection()->SetViewVisibility(*embed_view_id, true));
+  EXPECT_TRUE(test->wm_connection()->AddView(*(test->wm_connection()->root()),
+                                             *embed_view_id));
+  test->wm_connection()->EmbedUrl(std::string(), *embed_view_id, nullptr,
+                                  nullptr);
+  ViewManagerServiceImpl* connection1 =
+      test->connection_manager()->GetConnectionWithRoot(*embed_view_id);
+  ASSERT_TRUE(connection1 != nullptr);
+  ASSERT_NE(connection1, test->wm_connection());
+
+  const ViewId child1(connection1->id(), 1);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child1));
+  const ViewId child2(connection1->id(), 2);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child2));
+  const ViewId child3(connection1->id(), 3);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child3));
+
+  ServerView* v1 = connection1->GetView(child1);
+  v1->SetVisible(true);
+  v1->SetBounds(gfx::Rect(1, 2, 11, 22));
+  ServerView* v2 = connection1->GetView(child2);
+  v2->SetVisible(true);
+  v2->SetBounds(gfx::Rect(2, 3, 6, 7));
+  ServerView* v3 = connection1->GetView(child3);
+  v3->SetVisible(true);
+  v3->SetBounds(gfx::Rect(3, 4, 6, 7));
+
+  EXPECT_TRUE(connection1->AddView(*embed_view_id, child1));
+  EXPECT_TRUE(connection1->AddView(child1, child2));
+  EXPECT_TRUE(connection1->AddView(child2, child3));
+
+  TestViewManagerClient* connection1_client = test->last_view_manager_client();
+  connection1_client->tracker()->changes()->clear();
+  test->wm_client()->tracker()->changes()->clear();
+  EXPECT_TRUE(test->connection_manager()->CloneAndAnimate(child2));
+  EXPECT_TRUE(connection1_client->tracker()->changes()->empty());
+  EXPECT_TRUE(test->wm_client()->tracker()->changes()->empty());
+
+  // We cloned v2. The cloned view ends up as a sibling of it.
+  const ServerView* cloned_view = GetFirstCloned(connection1->GetView(child1));
+  ASSERT_TRUE(cloned_view);
+  // |cloned_view| should have one and only one cloned child (corresponds to
+  // |child3|).
+  ASSERT_EQ(1u, cloned_view->GetChildren().size());
+  EXPECT_TRUE(cloned_view->GetChildren()[0]->id() == ClonedViewId());
+
+  // Cloned views should match the bounds of the view they were cloned from.
+  EXPECT_EQ(v2->bounds(), cloned_view->bounds());
+  EXPECT_EQ(v3->bounds(), cloned_view->GetChildren()[0]->bounds());
+
+  // Cloned views are owned by the ConnectionManager and shouldn't be returned
+  // from ViewManagerServiceImpl::GetView.
+  EXPECT_TRUE(connection1->GetView(ClonedViewId()) == nullptr);
+  EXPECT_TRUE(test->wm_connection()->GetView(ClonedViewId()) == nullptr);
+}
+
+}  // namespace
+
+// Verifies ViewManagerService::GetViewTree() doesn't return cloned views.
+TEST_F(ViewManagerServiceTest, ConnectionsCantSeeClonedViews) {
+  ViewId embed_view_id;
+  EXPECT_NO_FATAL_FAILURE(SetUpAnimate1(this, &embed_view_id));
+
+  ViewManagerServiceImpl* connection1 =
+      connection_manager()->GetConnectionWithRoot(embed_view_id);
+
+  const ViewId child1(connection1->id(), 1);
+  const ViewId child2(connection1->id(), 2);
+  const ViewId child3(connection1->id(), 3);
+
+  // Verify the root doesn't see any cloned views.
+  std::vector<const ServerView*> views(
+      wm_connection()->GetViewTree(*wm_connection()->root()));
+  ASSERT_EQ(5u, views.size());
+  ASSERT_TRUE(views[0]->id() == *wm_connection()->root());
+  ASSERT_TRUE(views[1]->id() == embed_view_id);
+  ASSERT_TRUE(views[2]->id() == child1);
+  ASSERT_TRUE(views[3]->id() == child2);
+  ASSERT_TRUE(views[4]->id() == child3);
+
+  // Verify connection1 doesn't see any cloned views.
+  std::vector<const ServerView*> v1_views(
+      connection1->GetViewTree(embed_view_id));
+  ASSERT_EQ(4u, v1_views.size());
+  ASSERT_TRUE(v1_views[0]->id() == embed_view_id);
+  ASSERT_TRUE(v1_views[1]->id() == child1);
+  ASSERT_TRUE(v1_views[2]->id() == child2);
+  ASSERT_TRUE(v1_views[3]->id() == child3);
+}
+
+TEST_F(ViewManagerServiceTest, ClonedViewsPromotedOnConnectionClose) {
+  ViewId embed_view_id;
+  EXPECT_NO_FATAL_FAILURE(SetUpAnimate1(this, &embed_view_id));
+
+  // Destroy connection1, which should force the cloned view to become a child
+  // of where it was embedded (the embedded view still exists).
+  connection_manager()->OnConnectionError(last_client_connection());
+
+  ServerView* embed_view = wm_connection()->GetView(embed_view_id);
+  ASSERT_TRUE(embed_view != nullptr);
+  const ServerView* cloned_view = GetFirstCloned(embed_view);
+  ASSERT_TRUE(cloned_view);
+  ASSERT_EQ(1u, cloned_view->GetChildren().size());
+  EXPECT_TRUE(cloned_view->GetChildren()[0]->id() == ClonedViewId());
+
+  // Because the cloned view changed parents its bounds should have changed.
+  EXPECT_EQ(gfx::Rect(3, 5, 6, 7), cloned_view->bounds());
+  // The bounds of the cloned child should not have changed though.
+  EXPECT_EQ(gfx::Rect(3, 4, 6, 7), cloned_view->GetChildren()[0]->bounds());
+}
+
+TEST_F(ViewManagerServiceTest, ClonedViewsPromotedOnHide) {
+  ViewId embed_view_id;
+  EXPECT_NO_FATAL_FAILURE(SetUpAnimate1(this, &embed_view_id));
+
+  ViewManagerServiceImpl* connection1 =
+      connection_manager()->GetConnectionWithRoot(embed_view_id);
+
+  // Hide the parent of the cloned view, which should force the cloned view to
+  // become a sibling of the parent.
+  const ServerView* view_to_hide =
+      connection1->GetView(ViewId(connection1->id(), 1));
+  ASSERT_TRUE(connection1->SetViewVisibility(view_to_hide->id(), false));
+
+  const ServerView* cloned_view = GetFirstCloned(view_to_hide->parent());
+  ASSERT_TRUE(cloned_view);
+  ASSERT_EQ(1u, cloned_view->GetChildren().size());
+  EXPECT_TRUE(cloned_view->GetChildren()[0]->id() == ClonedViewId());
+  EXPECT_EQ(2u, cloned_view->parent()->GetChildren().size());
+  EXPECT_TRUE(cloned_view->parent()->GetChildren()[1] == cloned_view);
+}
+
+// Clone and animate on a tree with more depth. Basically that of
+// SetUpAnimate1() but cloning 2,1.
+TEST_F(ViewManagerServiceTest, CloneAndAnimateLargerDepth) {
+  const ViewId embed_view_id(wm_connection()->id(), 1);
+  EXPECT_EQ(ERROR_CODE_NONE, wm_connection()->CreateView(embed_view_id));
+  EXPECT_TRUE(wm_connection()->SetViewVisibility(embed_view_id, true));
+  EXPECT_TRUE(
+      wm_connection()->AddView(*(wm_connection()->root()), embed_view_id));
+  wm_connection()->EmbedUrl(std::string(), embed_view_id, nullptr, nullptr);
+  ViewManagerServiceImpl* connection1 =
+      connection_manager()->GetConnectionWithRoot(embed_view_id);
+  ASSERT_TRUE(connection1 != nullptr);
+  ASSERT_NE(connection1, wm_connection());
+
+  const ViewId child1(connection1->id(), 1);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child1));
+  const ViewId child2(connection1->id(), 2);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child2));
+  const ViewId child3(connection1->id(), 3);
+  EXPECT_EQ(ERROR_CODE_NONE, connection1->CreateView(child3));
+
+  ServerView* v1 = connection1->GetView(child1);
+  v1->SetVisible(true);
+  connection1->GetView(child2)->SetVisible(true);
+  connection1->GetView(child3)->SetVisible(true);
+
+  EXPECT_TRUE(connection1->AddView(embed_view_id, child1));
+  EXPECT_TRUE(connection1->AddView(child1, child2));
+  EXPECT_TRUE(connection1->AddView(child2, child3));
+
+  TestViewManagerClient* connection1_client = last_view_manager_client();
+  connection1_client->tracker()->changes()->clear();
+  wm_client()->tracker()->changes()->clear();
+  EXPECT_TRUE(connection_manager()->CloneAndAnimate(child1));
+  EXPECT_TRUE(connection1_client->tracker()->changes()->empty());
+  EXPECT_TRUE(wm_client()->tracker()->changes()->empty());
+
+  // We cloned v1. The cloned view ends up as a sibling of it.
+  const ServerView* cloned_view = GetFirstCloned(v1->parent());
+  ASSERT_TRUE(cloned_view);
+  // |cloned_view| should have a child and its child should have a child.
+  ASSERT_EQ(1u, cloned_view->GetChildren().size());
+  const ServerView* cloned_view_child = cloned_view->GetChildren()[0];
+  EXPECT_EQ(1u, cloned_view_child->GetChildren().size());
+  EXPECT_TRUE(cloned_view_child->id() == ClonedViewId());
+}
+
+}  // namespace view_manager