ash/shelf/app_list_shelf_item_delegate.cc

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ash/shelf/app_list_shelf_item_delegate.h"

#include <utility>

#include "ash/app_list/app_list_controller_impl.h"
#include "ash/public/cpp/app_list/app_list_constants.h"
#include "ash/public/cpp/app_list/app_list_features.h"
#include "ash/public/cpp/shelf_model.h"
#include "ash/public/cpp/shell_window_ids.h"
#include "ash/shell.h"
#include "ash/wm/mru_window_tracker.h"
#include "ash/wm/overview/window_selector_controller.h"
#include "ash/wm/splitview/split_view_controller.h"
#include "ash/wm/tablet_mode/tablet_mode_controller.h"
#include "ash/wm/window_state.h"

namespace ash {

AppListShelfItemDelegate::AppListShelfItemDelegate()
    : ShelfItemDelegate(ShelfID(kAppListId)) {}

AppListShelfItemDelegate::~AppListShelfItemDelegate() = default;

void AppListShelfItemDelegate::ItemSelected(std::unique_ptr<ui::Event> event,
                                            int64_t display_id,
                                            ShelfLaunchSource source,
                                            ItemSelectedCallback callback) {
  if (!Shell::Get()
           ->app_list_controller()
           ->IsHomeLauncherEnabledInTabletMode()) {
    Shell::Get()->app_list_controller()->ToggleAppList(
        display_id, app_list::kShelfButton, event->time_stamp());
    std::move(callback).Run(SHELF_ACTION_APP_LIST_SHOWN, base::nullopt);
    return;
  }

  // Whether to perform the "back" action for the app list. It will only be
  // performed if other actions are not performed.
  bool back_action = true;

  // End overview mode.
  if (Shell::Get()->window_selector_controller()->IsSelecting()) {
    Shell::Get()->window_selector_controller()->ToggleOverview(
        /*use_slide_animation=*/true);
    back_action = false;
  }

  // End split view mode.
  if (Shell::Get()->split_view_controller()->IsSplitViewModeActive()) {
    Shell::Get()->split_view_controller()->EndSplitView(
        SplitViewController::EndReason::kHomeLauncherPressed);
    back_action = false;
  }

  // Minimize all windows that aren't the app list.
  aura::Window* app_list_container =
      Shell::Get()->GetPrimaryRootWindow()->GetChildById(
          kShellWindowId_AppListTabletModeContainer);
  aura::Window::Windows windows =
      Shell::Get()->mru_window_tracker()->BuildWindowForCycleList();
  for (auto* window : windows) {
    if (!app_list_container->Contains(window) &&
        !wm::GetWindowState(window)->IsMinimized()) {
      wm::GetWindowState(window)->Minimize();
      back_action = false;
    }
  }

  if (back_action)
    Shell::Get()->app_list_controller()->Back();
}

void AppListShelfItemDelegate::ExecuteCommand(bool from_context_menu,
                                              int64_t command_id,
                                              int32_t event_flags,
                                              int64_t display_id) {
  // This delegate does not show custom context or application menu items.
  NOTIMPLEMENTED();
}

void AppListShelfItemDelegate::Close() {}

}  // namespace ash