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 "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/stringprintf.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 #include "components/mus/public/interfaces/window_tree_host.mojom.h"
@@ skipping 280 matching lines @@
     tree_ = tree.Pass();
     connection_id_ = connection_id;
     tracker()->OnEmbed(connection_id, root.Pass());
     if (embed_run_loop_)
       embed_run_loop_->Quit();
   }
   void OnEmbeddedAppDisconnected(Id window_id) override {
     tracker()->OnEmbeddedAppDisconnected(window_id);
   }
   void OnUnembed() override { tracker()->OnUnembed(); }
+  void OnLostCapture(Id window_id) override {
+    tracker()->OnLostCapture(window_id);
+  }
   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.
     if (window_id == root_window_id_)
       return;
     tracker()->OnWindowBoundsChanged(window_id, old_bounds.Pass(),
                                      new_bounds.Pass());
@@ skipping 1445 matching lines @@
 
   changes1()->clear();
   ASSERT_TRUE(DeleteWindow(ws2(), window_2_1));
   ws_client1()->WaitForChangeCount(2);
   EXPECT_EQ("WindowDeleted window=" + IdToString(window_2_2),
             ChangesToDescription1(*changes1())[0]);
   EXPECT_EQ("WindowDeleted window=" + IdToString(window_2_1),
             ChangesToDescription1(*changes1())[1]);
 }
 
+TEST_F(WindowTreeAppTest, ExplicitCapturePropagation) {
+  Id window_1_1 = ws_client1()->NewWindow(1);
+  Id window_1_2 = ws_client1()->NewWindow(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();
+  ws1()->ReleaseCapture(3, window_1_2);
+  ws_client1_->WaitForChangeCount(1);
+
+  EXPECT_EQ("OnLostCapture window=" + IdToString(window_1_2),
+            SingleChangeToDescription(*changes1()));
+}
+
 // 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