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 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_VIEW_H_ 6 #define CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_VIEW_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/memory/scoped_ptr.h" 12 #include "base/observer_list.h" 13 #include "chrome/browser/extensions/signin/scoped_gaia_auth_extension.h" 14 #include "chrome/browser/ui/chrome_web_modal_dialog_manager_delegate.h" 15 #include "components/web_modal/web_contents_modal_dialog_host.h" 16 #include "content/public/browser/notification_observer.h" 17 #include "content/public/browser/notification_registrar.h" 18 #include "content/public/browser/web_contents_delegate.h" 19 #include "content/public/browser/web_contents_observer.h" 20 #include "ui/views/controls/webview/unhandled_keyboard_event_handler.h" 21 #include "ui/views/widget/widget.h" 22 #include "ui/views/widget/widget_delegate.h" 23 24 class GURL; 25 26 namespace content { 27 class WebUI; 28 } 29 30 namespace views { 31 class View; 32 class WebView; 33 class Widget; 34 } 35 36 namespace chromeos { 37 38 // View used to render a WebUI supporting Widget. This widget is used for the 39 // WebUI based start up and lock screens. It contains a WebView. 40 class WebUILoginView : public views::View, 41 public content::WebContentsDelegate, 42 public content::WebContentsObserver, 43 public content::NotificationObserver, 44 public ChromeWebModalDialogManagerDelegate, 45 public web_modal::WebContentsModalDialogHost { 46 public: 47 // Internal class name. 48 static const char kViewClassName[]; 49 50 WebUILoginView(); 51 virtual ~WebUILoginView(); 52 53 // Initializes the webui login view. 54 virtual void Init(); 55 56 // Overridden from views::View: 57 virtual bool AcceleratorPressed( 58 const ui::Accelerator& accelerator) OVERRIDE; 59 virtual const char* GetClassName() const OVERRIDE; 60 61 // Overridden from ChromeWebModalDialogManagerDelegate: 62 virtual web_modal::WebContentsModalDialogHost* 63 GetWebContentsModalDialogHost() OVERRIDE; 64 65 // Overridden from web_modal::WebContentsModalDialogHost: 66 virtual gfx::NativeView GetHostView() const OVERRIDE; 67 virtual gfx::Point GetDialogPosition(const gfx::Size& size) OVERRIDE; 68 virtual gfx::Size GetMaximumDialogSize() OVERRIDE; 69 virtual void AddObserver( 70 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 71 virtual void RemoveObserver( 72 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 73 74 // Gets the native window from the view widget. 75 gfx::NativeWindow GetNativeWindow() const; 76 77 // Loads given page. Should be called after Init() has been called. 78 void LoadURL(const GURL& url); 79 80 // Returns current WebUI. 81 content::WebUI* GetWebUI(); 82 83 // Returns current WebContents. 84 content::WebContents* GetWebContents(); 85 86 // Opens proxy settings dialog. 87 void OpenProxySettings(); 88 89 // Called when WebUI is being shown after being initilized hidden. 90 void OnPostponedShow(); 91 92 // Toggles status area visibility. 93 void SetStatusAreaVisible(bool visible); 94 95 // Sets whether UI should be enabled. 96 void SetUIEnabled(bool enabled); 97 98 void set_is_hidden(bool hidden) { is_hidden_ = hidden; } 99 100 bool webui_visible() const { return webui_visible_; } 101 102 // Let suppress emission of this signal. 103 void set_should_emit_login_prompt_visible(bool emit) { 104 should_emit_login_prompt_visible_ = emit; 105 } 106 107 protected: 108 // Overridden from views::View: 109 virtual void Layout() OVERRIDE; 110 virtual void OnLocaleChanged() OVERRIDE; 111 virtual void ChildPreferredSizeChanged(View* child) OVERRIDE; 112 virtual void AboutToRequestFocusFromTabTraversal(bool reverse) OVERRIDE; 113 114 // Overridden from content::NotificationObserver. 115 virtual void Observe(int type, 116 const content::NotificationSource& source, 117 const content::NotificationDetails& details) OVERRIDE; 118 119 // WebView for rendering a webpage as a webui login. 120 views::WebView* webui_login_; 121 122 private: 123 // Map type for the accelerator-to-identifier map. 124 typedef std::map<ui::Accelerator, std::string> AccelMap; 125 126 // Overridden from content::WebContentsDelegate. 127 virtual bool HandleContextMenu( 128 const content::ContextMenuParams& params) OVERRIDE; 129 virtual void HandleKeyboardEvent( 130 content::WebContents* source, 131 const content::NativeWebKeyboardEvent& event) OVERRIDE; 132 virtual bool IsPopupOrPanel( 133 const content::WebContents* source) const OVERRIDE; 134 virtual bool TakeFocus(content::WebContents* source, bool reverse) OVERRIDE; 135 virtual void RequestMediaAccessPermission( 136 content::WebContents* web_contents, 137 const content::MediaStreamRequest& request, 138 const content::MediaResponseCallback& callback) OVERRIDE; 139 140 // Overridden from content::WebContentsObserver. 141 virtual void DidFailProvisionalLoad( 142 int64 frame_id, 143 const base::string16& frame_unique_name, 144 bool is_main_frame, 145 const GURL& validated_url, 146 int error_code, 147 const base::string16& error_description, 148 content::RenderViewHost* render_view_host) OVERRIDE; 149 150 // Performs series of actions when login prompt is considered 151 // to be ready and visible. 152 // 1. Emits LoginPromptVisible signal if needed 153 // 2. Notifies OOBE/sign classes. 154 void OnLoginPromptVisible(); 155 156 // Called when focus is returned from status area. 157 // |reverse| is true when focus is traversed backwards (using Shift-Tab). 158 void ReturnFocus(bool reverse); 159 160 content::NotificationRegistrar registrar_; 161 162 // Converts keyboard events on the WebContents to accelerators. 163 views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_; 164 165 // Maps installed accelerators to OOBE webui accelerator identifiers. 166 AccelMap accel_map_; 167 168 // True when WebUI is being initialized hidden. 169 bool is_hidden_; 170 171 // True when the WebUI has finished initializing and is visible. 172 bool webui_visible_; 173 174 // Should we emit the login-prompt-visible signal when the login page is 175 // displayed? 176 bool should_emit_login_prompt_visible_; 177 178 // True to forward keyboard event. 179 bool forward_keyboard_event_; 180 181 scoped_ptr<ScopedGaiaAuthExtension> auth_extension_; 182 183 ObserverList<web_modal::ModalDialogHostObserver> observer_list_; 184 185 DISALLOW_COPY_AND_ASSIGN(WebUILoginView); 186 }; 187 188 } // namespace chromeos 189 190 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_WEBUI_LOGIN_VIEW_H_ 191
