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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ash/shell.h"
      6 #include "ash/test/ash_test_base.h"
      7 #include "ash/test/test_shelf_delegate.h"
      8 #include "ash/wm/mru_window_tracker.h"
      9 #include "ash/wm/window_state.h"
     10 #include "ash/wm/window_util.h"
     11 #include "base/compiler_specific.h"
     12 #include "ui/aura/test/test_window_delegate.h"
     13 #include "ui/aura/window.h"
     14 #include "ui/views/widget/widget.h"
     15 
     16 namespace ash {
     17 
     18 class MruWindowTrackerTest : public test::AshTestBase {
     19  public:
     20   MruWindowTrackerTest() {}
     21   virtual ~MruWindowTrackerTest() {}
     22 
     23   aura::Window* CreateWindow() {
     24     return CreateTestWindowInShellWithBounds(gfx::Rect(0, 0, 400, 400));
     25   }
     26 
     27   ash::MruWindowTracker* mru_window_tracker() {
     28     return Shell::GetInstance()->mru_window_tracker();
     29   }
     30 
     31  private:
     32   DISALLOW_COPY_AND_ASSIGN(MruWindowTrackerTest);
     33 };
     34 
     35 // Basic test that the activation order is tracked.
     36 TEST_F(MruWindowTrackerTest, Basic) {
     37   scoped_ptr<aura::Window> w1(CreateWindow());
     38   scoped_ptr<aura::Window> w2(CreateWindow());
     39   scoped_ptr<aura::Window> w3(CreateWindow());
     40   wm::ActivateWindow(w3.get());
     41   wm::ActivateWindow(w2.get());
     42   wm::ActivateWindow(w1.get());
     43 
     44   MruWindowTracker::WindowList window_list =
     45       mru_window_tracker()->BuildMruWindowList();
     46   EXPECT_EQ(w1.get(), window_list[0]);
     47   EXPECT_EQ(w2.get(), window_list[1]);
     48   EXPECT_EQ(w3.get(), window_list[2]);
     49 }
     50 
     51 // Test that minimized windows are considered least recently used (but kept in
     52 // correct relative order).
     53 TEST_F(MruWindowTrackerTest, MinimizedWindowsAreLru) {
     54   scoped_ptr<aura::Window> w1(CreateWindow());
     55   scoped_ptr<aura::Window> w2(CreateWindow());
     56   scoped_ptr<aura::Window> w3(CreateWindow());
     57   scoped_ptr<aura::Window> w4(CreateWindow());
     58   scoped_ptr<aura::Window> w5(CreateWindow());
     59   scoped_ptr<aura::Window> w6(CreateWindow());
     60   wm::ActivateWindow(w6.get());
     61   wm::ActivateWindow(w5.get());
     62   wm::ActivateWindow(w4.get());
     63   wm::ActivateWindow(w3.get());
     64   wm::ActivateWindow(w2.get());
     65   wm::ActivateWindow(w1.get());
     66 
     67   wm::GetWindowState(w1.get())->Minimize();
     68   wm::GetWindowState(w4.get())->Minimize();
     69   wm::GetWindowState(w5.get())->Minimize();
     70 
     71   // Expect the relative order of minimized windows to remain the same, but all
     72   // minimized windows to be at the end of the list.
     73   MruWindowTracker::WindowList window_list =
     74       mru_window_tracker()->BuildMruWindowList();
     75   EXPECT_EQ(w2.get(), window_list[0]);
     76   EXPECT_EQ(w3.get(), window_list[1]);
     77   EXPECT_EQ(w6.get(), window_list[2]);
     78   EXPECT_EQ(w1.get(), window_list[3]);
     79   EXPECT_EQ(w4.get(), window_list[4]);
     80   EXPECT_EQ(w5.get(), window_list[5]);
     81 }
     82 
     83 }  // namespace ash
     84