Move ShellWindow into apps component.

This involves creating a new delegate type, ShellWindow::Delegate, which
is implemented in chrome.

BUG=159366

Review URL: https://chromiumcodereview.appspot.com/16702003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208927 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 380 insertions, 0 deletions

diff --git a/apps/shell_window.h b/apps/shell_window.h
new file mode 100644
index 0000000..f283c80
--- /dev/null
+++ b/apps/shell_window.h
@@ -0,0 +1,380 @@
+// 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.
+
+#ifndef CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_
+#define CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/extensions/extension_keybinding_registry.h"
+#include "chrome/browser/sessions/session_id.h"
+#include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/web_contents_delegate.h"
+#include "content/public/common/console_message_level.h"
+#include "ui/base/ui_base_types.h"  // WindowShowState
+#include "ui/gfx/image/image.h"
+#include "ui/gfx/rect.h"
+
+class GURL;
+class Profile;
+class NativeAppWindow;
+class SkRegion;
+
+namespace content {
+class WebContents;
+}
+
+namespace extensions {
+class Extension;
+class PlatformAppBrowserTest;
+class WindowController;
+
+struct DraggableRegion;
+}
+
+namespace ui {
+class BaseWindow;
+}
+
+namespace apps {
+
+// Manages the web contents for Shell Windows. The implementation for this
+// class should create and maintain the WebContents for the window, and handle
+// any message passing between the web contents and the extension system or
+// native window.
+class ShellWindowContents {
+ public:
+  ShellWindowContents() {}
+  virtual ~ShellWindowContents() {}
+
+  // Called to initialize the WebContents, before the app window is created.
+  virtual void Initialize(Profile* profile, const GURL& url) = 0;
+
+  // Called to load the contents, after the app window is created.
+  virtual void LoadContents(int32 creator_process_id) = 0;
+
+  // Called when the native window changes.
+  virtual void NativeWindowChanged(NativeAppWindow* native_app_window) = 0;
+
+  // Called when the native window closes.
+  virtual void NativeWindowClosed() = 0;
+
+  virtual content::WebContents* GetWebContents() const = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ShellWindowContents);
+};
+
+// ShellWindow is the type of window used by platform apps. Shell windows
+// have a WebContents but none of the chrome of normal browser windows.
+class ShellWindow : public content::NotificationObserver,
+                    public content::WebContentsDelegate,
+                    public web_modal::WebContentsModalDialogManagerDelegate,
+                    public extensions::ExtensionKeybindingRegistry::Delegate {
+ public:
+  enum WindowType {
+    WINDOW_TYPE_DEFAULT  = 1 << 0,  // Default shell window.
+    WINDOW_TYPE_PANEL    = 1 << 1,  // OS controlled panel window (Ash only).
+    WINDOW_TYPE_V1_PANEL = 1 << 2,  // For apps v1 support in Ash; deprecate
+                                    // with v1 apps.
+  };
+
+  enum Frame {
+    FRAME_CHROME,  // Chrome-style window frame.
+    FRAME_NONE,  // Frameless window.
+  };
+
+  struct CreateParams {
+    CreateParams();
+    ~CreateParams();
+
+    WindowType window_type;
+    Frame frame;
+    bool transparent_background;  // Only supported on ash.
+
+    // Specify the initial content bounds of the window (excluding any window
+    // decorations). INT_MIN designates 'unspecified' for the position
+    // components, and 0 for the size components. When unspecified, they should
+    // be replaced with a default value.
+    gfx::Rect bounds;
+
+    gfx::Size minimum_size;
+    gfx::Size maximum_size;
+
+    std::string window_key;
+
+    // The process ID of the process that requested the create.
+    int32 creator_process_id;
+
+    // Initial state of the window.
+    ui::WindowShowState state;
+
+    // If true, don't show the window after creation.
+    bool hidden;
+
+    // If true, the window will be resizable by the user. Defaults to true.
+    bool resizable;
+
+    // If true, the window will be focused on creation. Defaults to true.
+    bool focused;
+  };
+
+  class Delegate {
+   public:
+    virtual ~Delegate();
+
+    // General initialization.
+    virtual void InitWebContents(content::WebContents* web_contents) = 0;
+
+    // Link handling.
+    virtual content::WebContents* OpenURLFromTab(
+        Profile* profile,
+        content::WebContents* source,
+        const content::OpenURLParams& params) = 0;
+    virtual void AddNewContents(Profile* profile,
+                                content::WebContents* new_contents,
+                                WindowOpenDisposition disposition,
+                                const gfx::Rect& initial_pos,
+                                bool user_gesture,
+                                bool* was_blocked) = 0;
+
+    // Feature support.
+    virtual content::ColorChooser* ShowColorChooser(
+        content::WebContents* web_contents,
+        SkColor initial_color) = 0;
+    virtual void RunFileChooser(content::WebContents* tab,
+                                const content::FileChooserParams& params) = 0;
+    virtual void RequestMediaAccessPermission(
+        content::WebContents* web_contents,
+        const content::MediaStreamRequest& request,
+        const content::MediaResponseCallback& callback,
+      const extensions::Extension* extension) = 0;
+    virtual int PreferredIconSize() = 0;
+
+    // Web contents modal dialog support.
+    virtual void SetWebContentsBlocked(content::WebContents* web_contents,
+                                       bool blocked) = 0;
+    virtual bool IsWebContentsVisible(content::WebContents* web_contents) = 0;
+  };
+
+  // Helper function for creating and intiailizing a v2 app window.
+  // The created shell window will take ownership of |delegate|.
+  static ShellWindow* Create(Profile* profile,
+                             Delegate* delegate,
+                             const extensions::Extension* extension,
+                             const GURL& url,
+                             const CreateParams& params);
+
+  // Convert draggable regions in raw format to SkRegion format. Caller is
+  // responsible for deleting the returned SkRegion instance.
+  static SkRegion* RawDraggableRegionsToSkRegion(
+      const std::vector<extensions::DraggableRegion>& regions);
+
+  // The constructor and Init methods are public for constructing a ShellWindow
+  // with a non-standard render interface (e.g. v1 apps using Ash Panels).
+  // Normally ShellWindow::Create should be used.
+  // The constructed shell window takes ownership of |delegate|.
+  ShellWindow(Profile* profile,
+              Delegate* delegate,
+              const extensions::Extension* extension);
+
+  // Initializes the render interface, web contents, and native window.
+  // |shell_window_contents| will become owned by ShellWindow.
+  void Init(const GURL& url,
+            ShellWindowContents* shell_window_contents,
+            const CreateParams& params);
+
+
+  const std::string& window_key() const { return window_key_; }
+  const SessionID& session_id() const { return session_id_; }
+  const extensions::Extension* extension() const { return extension_; }
+  const std::string& extension_id() const { return extension_id_; }
+  content::WebContents* web_contents() const;
+  WindowType window_type() const { return window_type_; }
+  bool window_type_is_panel() const {
+    return (window_type_ == WINDOW_TYPE_PANEL ||
+            window_type_ == WINDOW_TYPE_V1_PANEL);
+  }
+  Profile* profile() const { return profile_; }
+  const gfx::Image& app_icon() const { return app_icon_; }
+  const GURL& app_icon_url() { return app_icon_url_; }
+
+  NativeAppWindow* GetBaseWindow();
+  gfx::NativeWindow GetNativeWindow();
+
+  // Returns the bounds that should be reported to the renderer.
+  gfx::Rect GetClientBounds() const;
+
+  // This will return a slightly smaller icon then the app_icon to be used in
+  // application lists.
+  scoped_ptr<gfx::Image> GetAppListIcon();
+
+  // NativeAppWindows should call this to determine what the window's title
+  // is on startup and from within UpdateWindowTitle().
+  string16 GetTitle() const;
+
+  // Call to notify ShellRegistry and delete the window. Subclasses should
+  // invoke this method instead of using "delete this".
+  void OnNativeClose();
+
+  // Should be called by native implementations when the window size, position,
+  // or minimized/maximized state has changed.
+  void OnNativeWindowChanged();
+
+  // Should be called by native implementations when the window is activated.
+  void OnNativeWindowActivated();
+
+  // Specifies a url for the launcher icon.
+  void SetAppIconUrl(const GURL& icon_url);
+
+  // Called from the render interface to modify the draggable regions.
+  void UpdateDraggableRegions(
+      const std::vector<extensions::DraggableRegion>& regions);
+
+  // Updates the app image to |image|. Called internally from the image loader
+  // callback. Also called externally for v1 apps using Ash Panels.
+  void UpdateAppIcon(const gfx::Image& image);
+
+  // Transitions window into fullscreen, maximized, minimized or restores based
+  // on chrome.app.window API.
+  void Fullscreen();
+  void Maximize();
+  void Minimize();
+  void Restore();
+
+  ShellWindowContents* shell_window_contents_for_test() {
+    return shell_window_contents_.get();
+  }
+
+ protected:
+  virtual ~ShellWindow();
+
+ private:
+  // PlatformAppBrowserTest needs access to web_contents()
+  friend class extensions::PlatformAppBrowserTest;
+
+  // content::WebContentsDelegate implementation.
+  virtual void CloseContents(content::WebContents* contents) OVERRIDE;
+  virtual bool ShouldSuppressDialogs() OVERRIDE;
+  virtual content::ColorChooser* OpenColorChooser(
+      content::WebContents* web_contents, SkColor color) OVERRIDE;
+  virtual void RunFileChooser(
+      content::WebContents* tab,
+      const content::FileChooserParams& params) OVERRIDE;
+  virtual bool IsPopupOrPanel(
+      const content::WebContents* source) const OVERRIDE;
+  virtual void MoveContents(
+      content::WebContents* source, const gfx::Rect& pos) OVERRIDE;
+  virtual void NavigationStateChanged(const content::WebContents* source,
+                                      unsigned changed_flags) OVERRIDE;
+  virtual void ToggleFullscreenModeForTab(content::WebContents* source,
+                                          bool enter_fullscreen) OVERRIDE;
+  virtual bool IsFullscreenForTabOrPending(
+      const content::WebContents* source) const OVERRIDE;
+  virtual void RequestMediaAccessPermission(
+      content::WebContents* web_contents,
+      const content::MediaStreamRequest& request,
+      const content::MediaResponseCallback& callback) OVERRIDE;
+  virtual content::WebContents* OpenURLFromTab(
+      content::WebContents* source,
+      const content::OpenURLParams& params) OVERRIDE;
+  virtual void AddNewContents(content::WebContents* source,
+                              content::WebContents* new_contents,
+                              WindowOpenDisposition disposition,
+                              const gfx::Rect& initial_pos,
+                              bool user_gesture,
+                              bool* was_blocked) OVERRIDE;
+  virtual void HandleKeyboardEvent(
+      content::WebContents* source,
+      const content::NativeWebKeyboardEvent& event) OVERRIDE;
+  virtual void RequestToLockMouse(content::WebContents* web_contents,
+                                  bool user_gesture,
+                                  bool last_unlocked_by_target) OVERRIDE;
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // web_modal::WebContentsModalDialogManagerDelegate implementation.
+  virtual void SetWebContentsBlocked(content::WebContents* web_contents,
+                                     bool blocked) OVERRIDE;
+  virtual bool IsWebContentsVisible(
+      content::WebContents* web_contents) OVERRIDE;
+
+  // Helper method to add a message to the renderer's DevTools console.
+  void AddMessageToDevToolsConsole(content::ConsoleMessageLevel level,
+                                   const std::string& message);
+
+  // Saves the window geometry/position/screen bounds.
+  void SaveWindowPosition();
+
+  // Helper method to adjust the cached bounds so that we can make sure it can
+  // be visible on the screen. See http://crbug.com/145752 .
+  void AdjustBoundsToBeVisibleOnScreen(
+      const gfx::Rect& cached_bounds,
+      const gfx::Rect& cached_screen_bounds,
+      const gfx::Rect& current_screen_bounds,
+      const gfx::Size& minimum_size,
+      gfx::Rect* bounds) const;
+
+  // Load the app's image, firing a load state change when loaded.
+  void UpdateExtensionAppIcon();
+
+  void OnImageLoaded(const gfx::Image& image);
+
+  // extensions::ExtensionKeybindingRegistry::Delegate implementation.
+  virtual extensions::ActiveTabPermissionGranter*
+      GetActiveTabPermissionGranter() OVERRIDE;
+
+  // web_modal::WebContentsModalDialogManagerDelegate implementation.
+  virtual web_modal::WebContentsModalDialogHost*
+      GetWebContentsModalDialogHost() OVERRIDE;
+
+  // Callback from web_contents()->DownloadFavicon.
+  void DidDownloadFavicon(int id,
+                          int http_status_code,
+                          const GURL& image_url,
+                          int requested_size,
+                          const std::vector<SkBitmap>& bitmaps);
+
+  Profile* profile_;  // weak pointer - owned by ProfileManager.
+  // weak pointer - owned by ExtensionService.
+  const extensions::Extension* extension_;
+  const std::string extension_id_;
+
+  // Identifier that is used when saving and restoring geometry for this
+  // window.
+  std::string window_key_;
+
+  const SessionID session_id_;
+  WindowType window_type_;
+  content::NotificationRegistrar registrar_;
+
+  // Icon shown in the task bar.
+  gfx::Image app_icon_;
+
+  // Icon URL to be used for setting the app icon. If not empty, app_icon_ will
+  // be fetched and set using this URL.
+  GURL app_icon_url_;
+
+  scoped_ptr<NativeAppWindow> native_app_window_;
+  scoped_ptr<ShellWindowContents> shell_window_contents_;
+  scoped_ptr<Delegate> delegate_;
+
+  base::WeakPtrFactory<ShellWindow> image_loader_ptr_factory_;
+
+  // Fullscreen entered by app.window api.
+  bool fullscreen_for_window_api_;
+  // Fullscreen entered by HTML requestFullscreen.
+  bool fullscreen_for_tab_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShellWindow);
+};
+
+}  // namespace apps
+
+#endif  // CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_