chrome/browser/ui/ash/launcher/shell_window_launcher_item_controller.cc

   1 // Copyright (c) 2012 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/ash/launcher/shell_window_launcher_item_controller.h"
   6
   7 #include "apps/shell_window.h"
   8 #include "apps/ui/native_app_window.h"
   9 #include "ash/shelf/shelf_model.h"
  10 #include "ash/wm/window_state.h"
  11 #include "ash/wm/window_util.h"
  12 #include "chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item.h"
  13 #include "chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item_v2app.h"
  14 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
  15 #include "chrome/browser/ui/ash/launcher/launcher_application_menu_item_model.h"
  16 #include "chrome/browser/ui/ash/launcher/launcher_context_menu.h"
  17 #include "chrome/browser/ui/ash/launcher/launcher_item_controller.h"
  18 #include "content/public/browser/web_contents.h"
  19 #include "skia/ext/image_operations.h"
  20 #include "ui/aura/client/aura_constants.h"
  21 #include "ui/aura/window.h"
  22 #include "ui/events/event.h"
  23 #include "ui/gfx/image/image_skia.h"
  24 #include "ui/views/corewm/window_animations.h"
  25
  26 using apps::ShellWindow;
  27
  28 namespace {
  29
  30 // Size of the icon in the shelf launcher in display-independent pixels.
  31 const int kAppListIconSize = 24;
  32
  33 // This will return a slightly smaller icon than the app icon to be used in
  34 // the application list menu.
  35 scoped_ptr<gfx::Image> GetAppListIcon(ShellWindow* shell_window) {
  36   // TODO(skuhne): We instead might want to use LoadImages in
  37   // ShellWindow::UpdateExtensionAppIcon() to let the extension give us
  38   // pre-defined icons in the launcher and the launcher list sizes. Since there
  39   // is no mock yet, doing this now seems a bit premature and we scale for the
  40   // time being.
  41   if (shell_window->app_icon().IsEmpty())
  42     return make_scoped_ptr(new gfx::Image());
  43
  44   SkBitmap bmp =
  45       skia::ImageOperations::Resize(*shell_window->app_icon().ToSkBitmap(),
  46                                     skia::ImageOperations::RESIZE_BEST,
  47                                     kAppListIconSize,
  48                                     kAppListIconSize);
  49   return make_scoped_ptr(
  50       new gfx::Image(gfx::ImageSkia::CreateFrom1xBitmap(bmp)));
  51 }
  52
  53 // Functor for std::find_if used in AppLauncherItemController.
  54 class ShellWindowHasWindow {
  55  public:
  56   explicit ShellWindowHasWindow(aura::Window* window) : window_(window) { }
  57
  58   bool operator()(ShellWindow* shell_window) const {
  59     return shell_window->GetNativeWindow() == window_;
  60   }
  61
  62  private:
  63   const aura::Window* window_;
  64 };
  65
  66 }  // namespace
  67
  68 ShellWindowLauncherItemController::ShellWindowLauncherItemController(
  69     Type type,
  70     const std::string& app_launcher_id,
  71     const std::string& app_id,
  72     ChromeLauncherController* controller)
  73     : LauncherItemController(type, app_id, controller),
  74       last_active_shell_window_(NULL),
  75       app_launcher_id_(app_launcher_id),
  76       observed_windows_(this) {
  77 }
  78
  79 ShellWindowLauncherItemController::~ShellWindowLauncherItemController() {
  80 }
  81
  82 void ShellWindowLauncherItemController::AddShellWindow(
  83     ShellWindow* shell_window,
  84     ash::LauncherItemStatus status) {
  85   if (shell_window->window_type_is_panel() && type() != TYPE_APP_PANEL)
  86     LOG(ERROR) << "ShellWindow of type Panel added to non-panel launcher item";
  87   shell_windows_.push_front(shell_window);
  88   observed_windows_.Add(shell_window->GetNativeWindow());
  89 }
  90
  91 void ShellWindowLauncherItemController::RemoveShellWindowForWindow(
  92     aura::Window* window) {
  93   ShellWindowList::iterator iter =
  94       std::find_if(shell_windows_.begin(), shell_windows_.end(),
  95                    ShellWindowHasWindow(window));
  96   if (iter != shell_windows_.end()) {
  97     if (*iter == last_active_shell_window_)
  98       last_active_shell_window_ = NULL;
  99     shell_windows_.erase(iter);
 100   }
 101   observed_windows_.Remove(window);
 102 }
 103
 104 void ShellWindowLauncherItemController::SetActiveWindow(aura::Window* window) {
 105   ShellWindowList::iterator iter =
 106       std::find_if(shell_windows_.begin(), shell_windows_.end(),
 107                    ShellWindowHasWindow(window));
 108   if (iter != shell_windows_.end())
 109     last_active_shell_window_ = *iter;
 110 }
 111
 112 bool ShellWindowLauncherItemController::IsOpen() const {
 113   return !shell_windows_.empty();
 114 }
 115
 116 bool ShellWindowLauncherItemController::IsVisible() const {
 117   // Return true if any windows are visible.
 118   for (ShellWindowList::const_iterator iter = shell_windows_.begin();
 119        iter != shell_windows_.end(); ++iter) {
 120     if ((*iter)->GetNativeWindow()->IsVisible())
 121       return true;
 122   }
 123   return false;
 124 }
 125
 126 void ShellWindowLauncherItemController::Launch(ash::LaunchSource source,
 127                                                int event_flags) {
 128   launcher_controller()->LaunchApp(app_id(),
 129                                    source,
 130                                    ui::EF_NONE);
 131 }
 132
 133 bool ShellWindowLauncherItemController::Activate(ash::LaunchSource source) {
 134   DCHECK(!shell_windows_.empty());
 135   ShellWindow* window_to_activate = last_active_shell_window_ ?
 136       last_active_shell_window_ : shell_windows_.back();
 137   window_to_activate->GetBaseWindow()->Activate();
 138   return false;
 139 }
 140
 141 void ShellWindowLauncherItemController::Close() {
 142   // Note: Closing windows may affect the contents of shell_windows_.
 143   ShellWindowList windows_to_close = shell_windows_;
 144   for (ShellWindowList::iterator iter = windows_to_close.begin();
 145        iter != windows_to_close.end(); ++iter) {
 146     (*iter)->GetBaseWindow()->Close();
 147   }
 148 }
 149
 150 void ShellWindowLauncherItemController::ActivateIndexedApp(size_t index) {
 151   if (index >= shell_windows_.size())
 152     return;
 153   ShellWindowList::iterator it = shell_windows_.begin();
 154   std::advance(it, index);
 155   ShowAndActivateOrMinimize(*it);
 156 }
 157
 158 ChromeLauncherAppMenuItems
 159 ShellWindowLauncherItemController::GetApplicationList(int event_flags) {
 160   ChromeLauncherAppMenuItems items;
 161   items.push_back(new ChromeLauncherAppMenuItem(GetTitle(), NULL, false));
 162   int index = 0;
 163   for (ShellWindowList::iterator iter = shell_windows_.begin();
 164        iter != shell_windows_.end(); ++iter) {
 165     ShellWindow* shell_window = *iter;
 166     scoped_ptr<gfx::Image> image(GetAppListIcon(shell_window));
 167     items.push_back(new ChromeLauncherAppMenuItemV2App(
 168         shell_window->GetTitle(),
 169         image.get(),  // Will be copied
 170         app_id(),
 171         launcher_controller(),
 172         index,
 173         index == 0 /* has_leading_separator */));
 174     ++index;
 175   }
 176   return items.Pass();
 177 }
 178
 179 bool ShellWindowLauncherItemController::ItemSelected(const ui::Event& event) {
 180   if (shell_windows_.empty())
 181     return false;
 182   if (type() == TYPE_APP_PANEL) {
 183     DCHECK(shell_windows_.size() == 1);
 184     ShellWindow* panel = shell_windows_.front();
 185     aura::Window* panel_window = panel->GetNativeWindow();
 186     // If the panel is attached on another display, move it to the current
 187     // display and activate it.
 188     if (ash::wm::GetWindowState(panel_window)->panel_attached() &&
 189         ash::wm::MoveWindowToEventRoot(panel_window, event)) {
 190       if (!panel->GetBaseWindow()->IsActive())
 191         ShowAndActivateOrMinimize(panel);
 192     } else {
 193       ShowAndActivateOrMinimize(panel);
 194     }
 195   } else {
 196     ShellWindow* window_to_show = last_active_shell_window_ ?
 197         last_active_shell_window_ : shell_windows_.front();
 198     // If the event was triggered by a keystroke, we try to advance to the next
 199     // item if the window we are trying to activate is already active.
 200     if (shell_windows_.size() >= 1 &&
 201         window_to_show->GetBaseWindow()->IsActive() &&
 202         event.type() == ui::ET_KEY_RELEASED) {
 203       ActivateOrAdvanceToNextShellWindow(window_to_show);
 204     } else {
 205       ShowAndActivateOrMinimize(window_to_show);
 206     }
 207   }
 208   return false;
 209 }
 210
 211 base::string16 ShellWindowLauncherItemController::GetTitle() {
 212   // For panels return the title of the contents if set.
 213   // Otherwise return the title of the app.
 214   if (type() == TYPE_APP_PANEL && !shell_windows_.empty()) {
 215     ShellWindow* shell_window = shell_windows_.front();
 216     if (shell_window->web_contents()) {
 217       base::string16 title = shell_window->web_contents()->GetTitle();
 218       if (!title.empty())
 219         return title;
 220     }
 221   }
 222   return GetAppTitle();
 223 }
 224
 225 ui::MenuModel* ShellWindowLauncherItemController::CreateContextMenu(
 226     aura::Window* root_window) {
 227   ash::LauncherItem item =
 228       *(launcher_controller()->model()->ItemByID(launcher_id()));
 229   return new LauncherContextMenu(launcher_controller(), &item, root_window);
 230 }
 231
 232 ash::ShelfMenuModel* ShellWindowLauncherItemController::CreateApplicationMenu(
 233     int event_flags) {
 234   return new LauncherApplicationMenuItemModel(GetApplicationList(event_flags));
 235 }
 236
 237 bool ShellWindowLauncherItemController::IsDraggable() {
 238   if (type() == TYPE_APP_PANEL)
 239     return true;
 240   return launcher_controller()->CanPin() ? true : false;
 241 }
 242
 243 bool ShellWindowLauncherItemController::ShouldShowTooltip() {
 244   if (type() == TYPE_APP_PANEL && IsVisible())
 245     return false;
 246   return true;
 247 }
 248
 249 void ShellWindowLauncherItemController::OnWindowPropertyChanged(
 250     aura::Window* window,
 251     const void* key,
 252     intptr_t old) {
 253   if (key == aura::client::kDrawAttentionKey) {
 254     ash::LauncherItemStatus status;
 255     if (ash::wm::IsActiveWindow(window)) {
 256       status = ash::STATUS_ACTIVE;
 257     } else if (window->GetProperty(aura::client::kDrawAttentionKey)) {
 258       status = ash::STATUS_ATTENTION;
 259     } else {
 260       status = ash::STATUS_RUNNING;
 261     }
 262     launcher_controller()->SetItemStatus(launcher_id(), status);
 263   }
 264 }
 265
 266 void ShellWindowLauncherItemController::ShowAndActivateOrMinimize(
 267     ShellWindow* shell_window) {
 268   // Either show or minimize windows when shown from the launcher.
 269   launcher_controller()->ActivateWindowOrMinimizeIfActive(
 270       shell_window->GetBaseWindow(),
 271       GetApplicationList(0).size() == 2);
 272 }
 273
 274 void ShellWindowLauncherItemController::ActivateOrAdvanceToNextShellWindow(
 275     ShellWindow* window_to_show) {
 276   ShellWindowList::iterator i(
 277       std::find(shell_windows_.begin(),
 278                 shell_windows_.end(),
 279                 window_to_show));
 280   if (i != shell_windows_.end()) {
 281     if (++i != shell_windows_.end())
 282       window_to_show = *i;
 283     else
 284       window_to_show = shell_windows_.front();
 285   }
 286   if (window_to_show->GetBaseWindow()->IsActive()) {
 287     // Coming here, only a single window is active. For keyboard activations
 288     // the window gets animated.
 289     AnimateWindow(window_to_show->GetNativeWindow(),
 290                   views::corewm::WINDOW_ANIMATION_TYPE_BOUNCE);
 291   } else {
 292     ShowAndActivateOrMinimize(window_to_show);
 293   }
 294 }