arc: Set custom icon in shelf for ARC apps.

chrome/browser/ui/ash/launcher/arc_app_window.h

+// Copyright 2017 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.
+
+#ifndef CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_APP_WINDOW_H_
+#define CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_APP_WINDOW_H_
+
+#include <string>
+#include <vector>
+
+#include "ash/public/cpp/shelf_types.h"
+#include "base/macros.h"
+#include "chrome/browser/image_decoder.h"
+#include "chrome/browser/ui/ash/launcher/arc_app_shelf_id.h"
+#include "ui/base/base_window.h"
+#include "ui/gfx/image/image_skia.h"
+
+class ArcAppWindowLauncherController;
+class ArcAppWindowLauncherItemController;
+
+namespace views {
+class Widget;
+}
+
+// A ui::BaseWindow for a chromeos launcher to control ARC applications.
+class ArcAppWindow : public ui::BaseWindow, public ImageDecoder::ImageRequest {
+ public:
+  enum class FullScreenMode {
+    NOT_DEFINED,  // Fullscreen mode was not defined.
+    ACTIVE,       // Fullscreen is activated for an app.
+    NON_ACTIVE,   // Fullscreen was not activated for an app.
+  };
+
+  ArcAppWindow(int task_id,
+               const arc::ArcAppShelfId& app_shelf_id,
+               views::Widget* widget,
+               ArcAppWindowLauncherController* owner);
+
+  ~ArcAppWindow() override;
+
+  void SetController(ArcAppWindowLauncherItemController* controller);
+
+  void SetFullscreenMode(FullScreenMode mode);
+
+  // Sets optional window title and icon. Note that |unsafe_icon_data_png| has
+  // to be decoded in separate process for security reason.
+  void SetDescription(const std::string& title,
+                      const std::vector<uint8_t>& unsafe_icon_data_png);
+
+  FullScreenMode fullscreen_mode() const { return fullscreen_mode_; }
+
+  int task_id() const { return task_id_; }
+
+  const arc::ArcAppShelfId& app_shelf_id() const { return app_shelf_id_; }
+
+  const ash::ShelfID& shelf_id() const { return shelf_id_; }
+
+  void set_shelf_id(const ash::ShelfID& shelf_id) { shelf_id_ = shelf_id; }
+
+  views::Widget* widget() const { return widget_; }
+
+  ArcAppWindowLauncherItemController* controller() const { return controller_; }
+
+  const gfx::ImageSkia& icon() const { return icon_; }
+
+  // ui::BaseWindow:
+  bool IsActive() const override;
+  bool IsMaximized() const override;
+  bool IsMinimized() const override;
+  bool IsFullscreen() const override;
+  gfx::NativeWindow GetNativeWindow() const override;
+  gfx::Rect GetRestoredBounds() const override;
+  ui::WindowShowState GetRestoredState() const override;
+  gfx::Rect GetBounds() const override;
+  void Show() override;
+  void ShowInactive() override;
+  void Hide() override;
+  void Close() override;
+  void Activate() override;
+  void Deactivate() override;
+  void Maximize() override;
+  void Minimize() override;
+  void Restore() override;
+  void SetBounds(const gfx::Rect& bounds) override;
+  void FlashFrame(bool flash) override;
+  bool IsAlwaysOnTop() const override;
+  void SetAlwaysOnTop(bool always_on_top) override;
+
+ private:
+  // Resets the icon and updates |controller_|'s active icon as needed.
+  void ResetIcon();
+
+  // ImageDecoder::ImageRequest:
+  void OnImageDecoded(const SkBitmap& decoded_image) override;
+
+  // Keeps associated ARC task id.
+  const int task_id_;
+  // Keeps ARC shelf grouping id.
+  const arc::ArcAppShelfId app_shelf_id_;
+  // Keeps shelf id.
+  ash::ShelfID shelf_id_;
+  // Keeps current full-screen mode.
+  FullScreenMode fullscreen_mode_ = FullScreenMode::NOT_DEFINED;
+  // Contains custom icon if it was set.
+  gfx::ImageSkia icon_;
+  // Unowned pointers
+  views::Widget* const widget_;
+  ArcAppWindowLauncherController* const owner_;
+  ArcAppWindowLauncherItemController* controller_ = nullptr;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcAppWindow);
+};
+
+#endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_ARC_APP_WINDOW_H_