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Issue 2736573002: chromeos: Move files in //ash/common to //ash, part 2 (Closed)
Patch Set: Created 3 years, 9 months ago
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1 // Copyright 2016 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/common/wm/fullscreen_window_finder.h"
6
7 #include "ash/common/wm/switchable_windows.h"
8 #include "ash/common/wm/window_state.h"
9 #include "ash/common/wm_shell.h"
10 #include "ash/common/wm_window.h"
11 #include "ash/public/cpp/shell_window_ids.h"
12 #include "ui/compositor/layer.h"
13
14 namespace ash {
15 namespace wm {
16
17 WmWindow* GetWindowForFullscreenMode(WmWindow* context) {
18 WmWindow* topmost_window = nullptr;
19 WmWindow* active_window = context->GetShell()->GetActiveWindow();
20 if (active_window &&
21 active_window->GetRootWindow() == context->GetRootWindow() &&
22 IsSwitchableContainer(active_window->GetParent())) {
23 // Use the active window when it is on the current root window to determine
24 // the fullscreen state to allow temporarily using a panel or docked window
25 // (which are always above the default container) while a fullscreen
26 // window is open. We only use the active window when in a switchable
27 // container as the launcher should not exit fullscreen mode.
28 topmost_window = active_window;
29 } else {
30 // Otherwise, use the topmost window on the root window's default container
31 // when there is no active window on this root window.
32 std::vector<WmWindow*> windows =
33 context->GetRootWindow()
34 ->GetChildByShellWindowId(kShellWindowId_DefaultContainer)
35 ->GetChildren();
36 for (auto iter = windows.rbegin(); iter != windows.rend(); ++iter) {
37 if ((*iter)->GetWindowState()->IsUserPositionable() &&
38 (*iter)->GetLayerTargetVisibility()) {
39 topmost_window = *iter;
40 break;
41 }
42 }
43 }
44 while (topmost_window) {
45 if (topmost_window->GetWindowState()->IsFullscreen())
46 return topmost_window;
47 topmost_window = topmost_window->GetTransientParent();
48 }
49 return nullptr;
50 }
51
52 } // namespace wm
53 } // namespace ash
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