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 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_VIEW_H_ 6 #define CHROME_BROWSER_CHROMEOS_LOGIN_UI_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 virtual void RequestFocus() OVERRIDE; 61 62 // Overridden from ChromeWebModalDialogManagerDelegate: 63 virtual web_modal::WebContentsModalDialogHost* 64 GetWebContentsModalDialogHost() OVERRIDE; 65 66 // Overridden from web_modal::WebContentsModalDialogHost: 67 virtual gfx::NativeView GetHostView() const OVERRIDE; 68 virtual gfx::Point GetDialogPosition(const gfx::Size& size) OVERRIDE; 69 virtual gfx::Size GetMaximumDialogSize() OVERRIDE; 70 virtual void AddObserver( 71 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 72 virtual void RemoveObserver( 73 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 74 75 // Gets the native window from the view widget. 76 gfx::NativeWindow GetNativeWindow() const; 77 78 // Loads given page. Should be called after Init() has been called. 79 void LoadURL(const GURL& url); 80 81 // Returns current WebUI. 82 content::WebUI* GetWebUI(); 83 84 // Returns current WebContents. 85 content::WebContents* GetWebContents(); 86 87 // Opens proxy settings dialog. 88 void OpenProxySettings(); 89 90 // Called when WebUI is being shown after being initilized hidden. 91 void OnPostponedShow(); 92 93 // Toggles status area visibility. 94 void SetStatusAreaVisible(bool visible); 95 96 // Sets whether UI should be enabled. 97 void SetUIEnabled(bool enabled); 98 set_is_hidden(bool hidden)99 void set_is_hidden(bool hidden) { is_hidden_ = hidden; } 100 webui_visible()101 bool webui_visible() const { return webui_visible_; } 102 103 // Let suppress emission of this signal. set_should_emit_login_prompt_visible(bool emit)104 void set_should_emit_login_prompt_visible(bool emit) { 105 should_emit_login_prompt_visible_ = emit; 106 } 107 108 protected: 109 // Overridden from views::View: 110 virtual void Layout() OVERRIDE; 111 virtual void OnLocaleChanged() OVERRIDE; 112 virtual void ChildPreferredSizeChanged(View* child) OVERRIDE; 113 virtual void AboutToRequestFocusFromTabTraversal(bool reverse) OVERRIDE; 114 115 // Overridden from content::NotificationObserver. 116 virtual void Observe(int type, 117 const content::NotificationSource& source, 118 const content::NotificationDetails& details) OVERRIDE; 119 120 // WebView for rendering a webpage as a webui login. 121 views::WebView* webui_login_; 122 123 private: 124 // Map type for the accelerator-to-identifier map. 125 typedef std::map<ui::Accelerator, std::string> AccelMap; 126 127 // Overridden from content::WebContentsDelegate. 128 virtual bool HandleContextMenu( 129 const content::ContextMenuParams& params) OVERRIDE; 130 virtual void HandleKeyboardEvent( 131 content::WebContents* source, 132 const content::NativeWebKeyboardEvent& event) OVERRIDE; 133 virtual bool IsPopupOrPanel( 134 const content::WebContents* source) const OVERRIDE; 135 virtual bool TakeFocus(content::WebContents* source, bool reverse) OVERRIDE; 136 virtual void RequestMediaAccessPermission( 137 content::WebContents* web_contents, 138 const content::MediaStreamRequest& request, 139 const content::MediaResponseCallback& callback) OVERRIDE; 140 virtual bool PreHandleGestureEvent( 141 content::WebContents* source, 142 const blink::WebGestureEvent& event) OVERRIDE; 143 144 // Overridden from content::WebContentsObserver. 145 virtual void DidFailProvisionalLoad( 146 int64 frame_id, 147 const base::string16& frame_unique_name, 148 bool is_main_frame, 149 const GURL& validated_url, 150 int error_code, 151 const base::string16& error_description, 152 content::RenderViewHost* render_view_host) OVERRIDE; 153 154 // Performs series of actions when login prompt is considered 155 // to be ready and visible. 156 // 1. Emits LoginPromptVisible signal if needed 157 // 2. Notifies OOBE/sign classes. 158 void OnLoginPromptVisible(); 159 160 // Called when focus is returned from status area. 161 // |reverse| is true when focus is traversed backwards (using Shift-Tab). 162 void ReturnFocus(bool reverse); 163 164 content::NotificationRegistrar registrar_; 165 166 // Converts keyboard events on the WebContents to accelerators. 167 views::UnhandledKeyboardEventHandler unhandled_keyboard_event_handler_; 168 169 // Maps installed accelerators to OOBE webui accelerator identifiers. 170 AccelMap accel_map_; 171 172 // True when WebUI is being initialized hidden. 173 bool is_hidden_; 174 175 // True when the WebUI has finished initializing and is visible. 176 bool webui_visible_; 177 178 // Should we emit the login-prompt-visible signal when the login page is 179 // displayed? 180 bool should_emit_login_prompt_visible_; 181 182 // True to forward keyboard event. 183 bool forward_keyboard_event_; 184 185 scoped_ptr<ScopedGaiaAuthExtension> auth_extension_; 186 187 ObserverList<web_modal::ModalDialogHostObserver> observer_list_; 188 189 DISALLOW_COPY_AND_ASSIGN(WebUILoginView); 190 }; 191 192 } // namespace chromeos 193 194 #endif // CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEBUI_LOGIN_VIEW_H_ 195