chrome/browser/ui/views/frame/browser_frame_ash.cc

   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 "chrome/browser/ui/views/frame/browser_frame_ash.h"
   6
   7 #include "ash/shell.h"
   8 #include "ash/wm/window_properties.h"
   9 #include "ash/wm/window_state.h"
  10 #include "ash/wm/window_state_delegate.h"
  11 #include "ash/wm/window_util.h"
  12 #include "chrome/browser/ui/browser_commands.h"
  13 #include "chrome/browser/ui/browser_finder.h"
  14 #include "chrome/browser/ui/views/frame/browser_shutdown.h"
  15 #include "chrome/browser/ui/views/frame/browser_view.h"
  16 #include "ui/aura/client/aura_constants.h"
  17 #include "ui/aura/window.h"
  18 #include "ui/aura/window_observer.h"
  19 #include "ui/views/view.h"
  20
  21 namespace {
  22
  23 // BrowserWindowStateDelegate class handles a user's fullscreen
  24 // request (Shift+F4/F4).
  25 class BrowserWindowStateDelegate : public ash::wm::WindowStateDelegate {
  26  public:
  27   explicit BrowserWindowStateDelegate(Browser* browser)
  28       : browser_(browser) {
  29     DCHECK(browser_);
  30   }
  31   ~BrowserWindowStateDelegate() override {}
  32
  33   // Overridden from ash::wm::WindowStateDelegate.
  34   bool ToggleFullscreen(ash::wm::WindowState* window_state) override {
  35     DCHECK(window_state->IsFullscreen() || window_state->CanMaximize());
  36     // Windows which cannot be maximized should not be fullscreened.
  37     if (!window_state->IsFullscreen() && !window_state->CanMaximize())
  38       return true;
  39     chrome::ToggleFullscreenMode(browser_);
  40     return true;
  41   }
  42  private:
  43   Browser* browser_;  // not owned.
  44
  45   DISALLOW_COPY_AND_ASSIGN(BrowserWindowStateDelegate);
  46 };
  47
  48 }  // namespace
  49
  50 ///////////////////////////////////////////////////////////////////////////////
  51 // BrowserFrameAsh, public:
  52
  53 // static
  54 const char BrowserFrameAsh::kWindowName[] = "BrowserFrameAsh";
  55
  56 BrowserFrameAsh::BrowserFrameAsh(BrowserFrame* browser_frame,
  57                                  BrowserView* browser_view)
  58     : views::NativeWidgetAura(browser_frame),
  59       browser_view_(browser_view) {
  60   GetNativeWindow()->SetName(kWindowName);
  61   Browser* browser = browser_view->browser();
  62   ash::wm::WindowState* window_state =
  63       ash::wm::GetWindowState(GetNativeWindow());
  64   window_state->SetDelegate(
  65       scoped_ptr<ash::wm::WindowStateDelegate>(
  66           new BrowserWindowStateDelegate(browser)).Pass());
  67
  68   // Turn on auto window management if we don't need an explicit bounds.
  69   // This way the requested bounds are honored.
  70   if (!browser->bounds_overridden() && !browser->is_session_restore())
  71     SetWindowAutoManaged();
  72 #if defined(OS_CHROMEOS)
  73   // For legacy reasons v1 apps (like Secure Shell) are allowed to consume keys
  74   // like brightness, volume, etc. Otherwise these keys are handled by the
  75   // Ash window manager.
  76   window_state->set_can_consume_system_keys(browser->is_app());
  77 #endif  // defined(OS_CHROMEOS)
  78 }
  79
  80 ///////////////////////////////////////////////////////////////////////////////
  81 // BrowserFrameAsh, views::NativeWidgetAura overrides:
  82
  83 void BrowserFrameAsh::OnWindowDestroying(aura::Window* window) {
  84   // Destroy any remaining WebContents early on. Doing so may result in
  85   // calling back to one of the Views/LayoutManagers or supporting classes of
  86   // BrowserView. By destroying here we ensure all said classes are valid.
  87   DestroyBrowserWebContents(browser_view_->browser());
  88   NativeWidgetAura::OnWindowDestroying(window);
  89 }
  90
  91 void BrowserFrameAsh::OnWindowTargetVisibilityChanged(bool visible) {
  92   if (visible) {
  93     // Once the window has been shown we know the requested bounds
  94     // (if provided) have been honored and we can switch on window management.
  95     SetWindowAutoManaged();
  96   }
  97   views::NativeWidgetAura::OnWindowTargetVisibilityChanged(visible);
  98 }
  99
 100 bool BrowserFrameAsh::ShouldSaveWindowPlacement() const {
 101   return nullptr == GetWidget()->GetNativeWindow()->GetProperty(
 102                         ash::kRestoreBoundsOverrideKey);
 103 }
 104
 105 void BrowserFrameAsh::GetWindowPlacement(
 106     gfx::Rect* bounds,
 107     ui::WindowShowState* show_state) const {
 108   gfx::Rect* override_bounds = GetWidget()->GetNativeWindow()->GetProperty(
 109                                    ash::kRestoreBoundsOverrideKey);
 110   if (override_bounds && !override_bounds->IsEmpty()) {
 111     *bounds = *override_bounds;
 112     *show_state = GetWidget()->GetNativeWindow()->GetProperty(
 113                       ash::kRestoreShowStateOverrideKey);
 114   } else {
 115     *bounds = GetWidget()->GetRestoredBounds();
 116     *show_state = GetWidget()->GetNativeWindow()->GetProperty(
 117                       aura::client::kShowStateKey);
 118   }
 119
 120   if (*show_state != ui::SHOW_STATE_MAXIMIZED &&
 121       *show_state != ui::SHOW_STATE_MINIMIZED) {
 122     *show_state = ui::SHOW_STATE_NORMAL;
 123   }
 124 }
 125
 126 ////////////////////////////////////////////////////////////////////////////////
 127 // BrowserFrameAsh, NativeBrowserFrame implementation:
 128
 129 views::Widget::InitParams BrowserFrameAsh::GetWidgetParams() {
 130   views::Widget::InitParams params;
 131   params.native_widget = this;
 132
 133   params.context = ash::Shell::GetPrimaryRootWindow();
 134 #if defined(OS_WIN)
 135   // If this window is under ASH on Windows, we need it to be translucent.
 136   params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
 137 #endif
 138
 139   return params;
 140 }
 141
 142 bool BrowserFrameAsh::UseCustomFrame() const {
 143   return true;
 144 }
 145
 146 bool BrowserFrameAsh::UsesNativeSystemMenu() const {
 147   return false;
 148 }
 149
 150 int BrowserFrameAsh::GetMinimizeButtonOffset() const {
 151   return 0;
 152 }
 153
 154 BrowserFrameAsh::~BrowserFrameAsh() {
 155 }
 156
 157 ///////////////////////////////////////////////////////////////////////////////
 158 // BrowserFrameAsh, private:
 159
 160 void BrowserFrameAsh::SetWindowAutoManaged() {
 161   if (!browser_view_->browser()->is_type_popup() ||
 162       browser_view_->browser()->is_app()) {
 163     ash::wm::GetWindowState(GetNativeWindow())->
 164         set_window_position_managed(true);
 165   }
 166 }