mus: Implement Window Server Capture

components/mus/ws/window_tree_apptest.cc

 // 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 <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 273 matching lines @@
     tree_ = std::move(tree);
     connection_id_ = connection_id;
     tracker()->OnEmbed(connection_id, std::move(root));
     if (embed_run_loop_)
       embed_run_loop_->Quit();
   }
   void OnEmbeddedAppDisconnected(Id window_id) override {
     tracker()->OnEmbeddedAppDisconnected(window_id);
   }
   void OnUnembed(Id window_id) override { tracker()->OnUnembed(window_id); }
+  void OnLostCapture(Id window_id) override {
+    tracker()->OnLostCapture(window_id);
+  }
   void OnTopLevelCreated(uint32_t change_id,
                          mojom::WindowDataPtr data) override {
     tracker()->OnTopLevelCreated(change_id, std::move(data));
   }
   void OnWindowBoundsChanged(Id window_id,
                              RectPtr old_bounds,
                              RectPtr new_bounds) override {
     // The bounds of the root may change during startup on Android at random
     // times. As this doesn't matter, and shouldn't impact test exepctations,
     // it is ignored.
@@ skipping 1522 matching lines @@
   // Remove 2_101 from wm, client1 should see the change.
   ws1()->RemoveWindowFromParent(12, window_2_101_in_ws1);
   ASSERT_TRUE(ws_client1()->WaitForChangeCompleted(12));
   ws_client2()->WaitForChangeCount(1);
   EXPECT_EQ("HierarchyChanged window=" + IdToString(window_2_101) +
                 " new_parent=null old_parent=" +
                 IdToString(window_1_100_in_ws2),
             SingleChangeToDescription(*changes2()));
 }
 
+// TODO(jonross): Enable this once apptests can send input events to the server.
+// Enabling capture requires that the connection be processing events.
+TEST_F(WindowTreeAppTest, DISABLED_ExplicitCapturePropagation) {
+  Id window_1_1 = ws_client1()->NewWindow(1);
+  Id window_1_2 = ws_client1()->NewWindow(2);
+
+  // Add the windows to the root, so that they have a WindowTreeHostImpl to
+  // handle input capture.
+  ASSERT_TRUE(ws_client1()->AddWindow(root_window_id(), window_1_1));
+  ASSERT_TRUE(ws_client1()->AddWindow(root_window_id(), window_1_2));
+
+  changes1()->clear();
+  // Window 1 takes capture then Window 2 takes capture.
+  // Verify that window 1 has lost capture.
+  ws1()->SetCapture(1, window_1_1);
+  ws1()->SetCapture(2, window_1_2);
+  ws_client1_->WaitForChangeCount(1);
+
+  EXPECT_EQ("OnLostCapture window=" + IdToString(window_1_1),
+            SingleChangeToDescription(*changes1()));
+
+  changes1()->clear();
+  // Explicitly releasing capture should not notify of lost capture.
+  ws1()->ReleaseCapture(3, window_1_2);
+  ws_client1_->WaitForAllMessages();
+
+  EXPECT_TRUE(changes1()->empty());
+}
+
 // TODO(sky): need to better track changes to initial connection. For example,
 // that SetBounsdWindows/AddWindow and the like don't result in messages to the
 // originating connection.
 
 // TODO(sky): make sure coverage of what was
 // WindowManagerTest.SecondEmbedRoot_InitService and
 // WindowManagerTest.MultipleEmbedRootsBeforeWTHReady gets added to window
 // manager
 // tests.
 
 }  // namespace ws
 }  // namespace mus