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

   1 // Copyright 2014 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/app_window_launcher_controller.h"
   6
   7 #include "ash/shelf/shelf_util.h"
   8 #include "ash/shell.h"
   9 #include "ash/wm/window_util.h"
  10 #include "base/strings/stringprintf.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/ui/ash/launcher/app_window_launcher_item_controller.h"
  13 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
  14 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
  15 #include "chrome/browser/ui/host_desktop.h"
  16 #include "extensions/browser/app_window/app_window.h"
  17 #include "extensions/common/extension.h"
  18 #include "ui/aura/window_event_dispatcher.h"
  19 #include "ui/wm/public/activation_client.h"
  20
  21 using extensions::AppWindow;
  22 using extensions::AppWindowRegistry;
  23
  24 namespace {
  25
  26 std::string GetAppShelfId(AppWindow* app_window) {
  27   if (app_window->window_type_is_panel())
  28     return base::StringPrintf("panel:%d", app_window->session_id().id());
  29   return app_window->extension_id();
  30 }
  31
  32 bool ControlsWindow(aura::Window* window) {
  33   return chrome::GetHostDesktopTypeForNativeWindow(window) ==
  34          chrome::HOST_DESKTOP_TYPE_ASH;
  35 }
  36
  37 }  // namespace
  38
  39 AppWindowLauncherController::AppWindowLauncherController(
  40     ChromeLauncherController* owner)
  41     : owner_(owner), activation_client_(NULL) {
  42 AppWindowRegistry* registry = AppWindowRegistry::Get(owner->profile());
  43   registry_.insert(registry);
  44   registry->AddObserver(this);
  45   if (ash::Shell::HasInstance()) {
  46     if (ash::Shell::GetInstance()->GetPrimaryRootWindow()) {
  47       activation_client_ = aura::client::GetActivationClient(
  48           ash::Shell::GetInstance()->GetPrimaryRootWindow());
  49       if (activation_client_)
  50         activation_client_->AddObserver(this);
  51     }
  52   }
  53 }
  54
  55 AppWindowLauncherController::~AppWindowLauncherController() {
  56   for (std::set<AppWindowRegistry*>::iterator it = registry_.begin();
  57        it != registry_.end();
  58        ++it)
  59     (*it)->RemoveObserver(this);
  60
  61   if (activation_client_)
  62     activation_client_->RemoveObserver(this);
  63   for (WindowToAppShelfIdMap::iterator iter =
  64            window_to_app_shelf_id_map_.begin();
  65        iter != window_to_app_shelf_id_map_.end();
  66        ++iter) {
  67     iter->first->RemoveObserver(this);
  68   }
  69 }
  70
  71 void AppWindowLauncherController::AdditionalUserAddedToSession(
  72     Profile* profile) {
  73   // TODO(skuhne): This was added for the legacy side by side mode in M32. If
  74   // this mode gets no longer pursued this special case can be removed.
  75   if (chrome::MultiUserWindowManager::GetMultiProfileMode() !=
  76       chrome::MultiUserWindowManager::MULTI_PROFILE_MODE_MIXED)
  77     return;
  78
  79   AppWindowRegistry* registry = AppWindowRegistry::Get(profile);
  80   if (registry_.find(registry) != registry_.end())
  81     return;
  82
  83   registry->AddObserver(this);
  84   registry_.insert(registry);
  85 }
  86
  87 void AppWindowLauncherController::OnAppWindowIconChanged(
  88     AppWindow* app_window) {
  89   if (!ControlsWindow(app_window->GetNativeWindow()))
  90     return;
  91
  92   const std::string app_shelf_id = GetAppShelfId(app_window);
  93   AppControllerMap::iterator iter = app_controller_map_.find(app_shelf_id);
  94   if (iter == app_controller_map_.end())
  95     return;
  96   AppWindowLauncherItemController* controller = iter->second;
  97   controller->set_image_set_by_controller(true);
  98   owner_->SetLauncherItemImage(controller->shelf_id(),
  99                                app_window->app_icon().AsImageSkia());
 100 }
 101
 102 void AppWindowLauncherController::OnAppWindowShown(AppWindow* app_window,
 103                                                    bool was_hidden) {
 104   aura::Window* window = app_window->GetNativeWindow();
 105   if (!ControlsWindow(window))
 106     return;
 107
 108   if (!IsRegisteredApp(window))
 109     RegisterApp(app_window);
 110 }
 111
 112 void AppWindowLauncherController::OnAppWindowHidden(AppWindow* app_window) {
 113   aura::Window* window = app_window->GetNativeWindow();
 114   if (!ControlsWindow(window))
 115     return;
 116
 117   if (IsRegisteredApp(window))
 118     UnregisterApp(window);
 119 }
 120
 121 // Called from aura::Window::~Window(), before delegate_->OnWindowDestroyed()
 122 // which destroys AppWindow, so both |window| and the associated AppWindow
 123 // are valid here.
 124 void AppWindowLauncherController::OnWindowDestroying(aura::Window* window) {
 125   if (!ControlsWindow(window))
 126     return;
 127   UnregisterApp(window);
 128 }
 129
 130 void AppWindowLauncherController::OnWindowActivated(aura::Window* new_active,
 131                                                     aura::Window* old_active) {
 132   // Make the newly active window the active (first) entry in the controller.
 133   AppWindowLauncherItemController* new_controller =
 134       ControllerForWindow(new_active);
 135   if (new_controller) {
 136     new_controller->SetActiveWindow(new_active);
 137     owner_->SetItemStatus(new_controller->shelf_id(), ash::STATUS_ACTIVE);
 138   }
 139
 140   // Mark the old active window's launcher item as running (if different).
 141   AppWindowLauncherItemController* old_controller =
 142       ControllerForWindow(old_active);
 143   if (old_controller && old_controller != new_controller)
 144     owner_->SetItemStatus(old_controller->shelf_id(), ash::STATUS_RUNNING);
 145 }
 146
 147 void AppWindowLauncherController::RegisterApp(AppWindow* app_window) {
 148   // Windows created by IME extension should be treated the same way as the
 149   // virtual keyboard window, which does not register itself in launcher.
 150   if (app_window->is_ime_window())
 151     return;
 152
 153   aura::Window* window = app_window->GetNativeWindow();
 154   // Get the app's shelf identifier and add an entry to the map.
 155   DCHECK(window_to_app_shelf_id_map_.find(window) ==
 156          window_to_app_shelf_id_map_.end());
 157   const std::string app_shelf_id = GetAppShelfId(app_window);
 158   window_to_app_shelf_id_map_[window] = app_shelf_id;
 159   window->AddObserver(this);
 160
 161   // Find or create an item controller and launcher item.
 162   std::string app_id = app_window->extension_id();
 163   ash::ShelfItemStatus status = ash::wm::IsActiveWindow(window)
 164                                     ? ash::STATUS_ACTIVE
 165                                     : ash::STATUS_RUNNING;
 166   AppControllerMap::iterator iter = app_controller_map_.find(app_shelf_id);
 167   ash::ShelfID shelf_id = 0;
 168   if (iter != app_controller_map_.end()) {
 169     AppWindowLauncherItemController* controller = iter->second;
 170     DCHECK(controller->app_id() == app_id);
 171     shelf_id = controller->shelf_id();
 172     controller->AddAppWindow(app_window, status);
 173   } else {
 174     LauncherItemController::Type type =
 175         app_window->window_type_is_panel()
 176             ? LauncherItemController::TYPE_APP_PANEL
 177             : LauncherItemController::TYPE_APP;
 178     AppWindowLauncherItemController* controller =
 179         new AppWindowLauncherItemController(type, app_shelf_id, app_id, owner_);
 180     controller->AddAppWindow(app_window, status);
 181     // If the app shelf id is not unique, and there is already a shelf
 182     // item for this app id (e.g. pinned), use that shelf item.
 183     if (app_shelf_id == app_id)
 184       shelf_id = owner_->GetShelfIDForAppID(app_id);
 185     if (shelf_id == 0) {
 186       shelf_id = owner_->CreateAppLauncherItem(controller, app_id, status);
 187       // Restore any existing app icon and flag as set.
 188       const gfx::Image& app_icon = app_window->app_icon();
 189       if (!app_icon.IsEmpty()) {
 190         owner_->SetLauncherItemImage(shelf_id, app_icon.AsImageSkia());
 191         controller->set_image_set_by_controller(true);
 192       }
 193     } else {
 194       owner_->SetItemController(shelf_id, controller);
 195     }
 196     const std::string app_shelf_id = GetAppShelfId(app_window);
 197     app_controller_map_[app_shelf_id] = controller;
 198   }
 199   owner_->SetItemStatus(shelf_id, status);
 200   ash::SetShelfIDForWindow(shelf_id, window);
 201 }
 202
 203 void AppWindowLauncherController::UnregisterApp(aura::Window* window) {
 204   WindowToAppShelfIdMap::iterator iter1 =
 205       window_to_app_shelf_id_map_.find(window);
 206   DCHECK(iter1 != window_to_app_shelf_id_map_.end());
 207   std::string app_shelf_id = iter1->second;
 208   window_to_app_shelf_id_map_.erase(iter1);
 209   window->RemoveObserver(this);
 210
 211   AppControllerMap::iterator iter2 = app_controller_map_.find(app_shelf_id);
 212   DCHECK(iter2 != app_controller_map_.end());
 213   AppWindowLauncherItemController* controller = iter2->second;
 214   controller->RemoveAppWindowForWindow(window);
 215   if (controller->app_window_count() == 0) {
 216     // If this is the last window associated with the app shelf id, close the
 217     // shelf item.
 218     ash::ShelfID shelf_id = controller->shelf_id();
 219     owner_->CloseLauncherItem(shelf_id);
 220     app_controller_map_.erase(iter2);
 221   }
 222 }
 223
 224 bool AppWindowLauncherController::IsRegisteredApp(aura::Window* window) {
 225   return window_to_app_shelf_id_map_.find(window) !=
 226          window_to_app_shelf_id_map_.end();
 227 }
 228
 229 // Private Methods
 230
 231 AppWindowLauncherItemController*
 232 AppWindowLauncherController::ControllerForWindow(aura::Window* window) {
 233   WindowToAppShelfIdMap::iterator iter1 =
 234       window_to_app_shelf_id_map_.find(window);
 235   if (iter1 == window_to_app_shelf_id_map_.end())
 236     return NULL;
 237   std::string app_shelf_id = iter1->second;
 238   AppControllerMap::iterator iter2 = app_controller_map_.find(app_shelf_id);
 239   if (iter2 == app_controller_map_.end())
 240     return NULL;
 241   return iter2->second;
 242 }