1 // Copyright 2013 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_EXTENSIONS_EXTENSION_VIEW_HOST_H_ 6 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_HOST_H_ 7 8 #include "base/memory/scoped_ptr.h" 9 #include "components/web_modal/popup_manager.h" 10 #include "components/web_modal/web_contents_modal_dialog_host.h" 11 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h" 12 #include "extensions/browser/extension_host.h" 13 14 class Browser; 15 16 namespace content { 17 class SiteInstance; 18 class WebContents; 19 } 20 21 namespace extensions { 22 23 class ExtensionView; 24 25 // The ExtensionHost for an extension that backs a view in the browser UI. For 26 // example, this could be an extension popup, infobar or dialog, but not a 27 // background page. 28 // TODO(gbillock): See if we can remove WebContentsModalDialogManager here. 29 class ExtensionViewHost 30 : public ExtensionHost, 31 public web_modal::WebContentsModalDialogManagerDelegate, 32 public web_modal::WebContentsModalDialogHost { 33 public: 34 ExtensionViewHost(const Extension* extension, 35 content::SiteInstance* site_instance, 36 const GURL& url, 37 ViewType host_type); 38 virtual ~ExtensionViewHost(); 39 40 ExtensionView* view() { return view_.get(); } 41 const ExtensionView* view() const { return view_.get(); } 42 43 // Create an ExtensionView and tie it to this host and |browser|. Note NULL 44 // is a valid argument for |browser|. Extension views may be bound to 45 // tab-contents hosted in ExternalTabContainer objects, which do not 46 // instantiate Browser objects. 47 void CreateView(Browser* browser); 48 49 void SetAssociatedWebContents(content::WebContents* web_contents); 50 51 // Handles keyboard events that were not handled by HandleKeyboardEvent(). 52 // Platform specific implementation may override this method to handle the 53 // event in platform specific way. 54 virtual void UnhandledKeyboardEvent( 55 content::WebContents* source, 56 const content::NativeWebKeyboardEvent& event); 57 58 // ExtensionHost 59 virtual void OnDidStopLoading() OVERRIDE; 60 virtual void OnDocumentAvailable() OVERRIDE; 61 virtual void LoadInitialURL() OVERRIDE; 62 virtual bool IsBackgroundPage() const OVERRIDE; 63 64 // content::WebContentsDelegate 65 virtual content::WebContents* OpenURLFromTab( 66 content::WebContents* source, 67 const content::OpenURLParams& params) OVERRIDE; 68 virtual bool PreHandleKeyboardEvent( 69 content::WebContents* source, 70 const content::NativeWebKeyboardEvent& event, 71 bool* is_keyboard_shortcut) OVERRIDE; 72 virtual void HandleKeyboardEvent( 73 content::WebContents* source, 74 const content::NativeWebKeyboardEvent& event) OVERRIDE; 75 virtual bool PreHandleGestureEvent( 76 content::WebContents* source, 77 const blink::WebGestureEvent& event) OVERRIDE; 78 virtual content::ColorChooser* OpenColorChooser( 79 content::WebContents* web_contents, 80 SkColor color, 81 const std::vector<content::ColorSuggestion>& suggestions) OVERRIDE; 82 virtual void RunFileChooser( 83 content::WebContents* tab, 84 const content::FileChooserParams& params) OVERRIDE; 85 virtual void ResizeDueToAutoResize(content::WebContents* source, 86 const gfx::Size& new_size) OVERRIDE; 87 88 // content::WebContentsObserver 89 virtual void RenderViewCreated( 90 content::RenderViewHost* render_view_host) OVERRIDE; 91 92 // web_modal::WebContentsModalDialogManagerDelegate 93 virtual web_modal::WebContentsModalDialogHost* 94 GetWebContentsModalDialogHost() OVERRIDE; 95 virtual bool IsWebContentsVisible( 96 content::WebContents* web_contents) OVERRIDE; 97 98 // web_modal::WebContentsModalDialogHost 99 virtual gfx::NativeView GetHostView() const OVERRIDE; 100 virtual gfx::Point GetDialogPosition(const gfx::Size& size) OVERRIDE; 101 virtual gfx::Size GetMaximumDialogSize() OVERRIDE; 102 virtual void AddObserver( 103 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 104 virtual void RemoveObserver( 105 web_modal::ModalDialogHostObserver* observer) OVERRIDE; 106 107 // extensions::ExtensionFunctionDispatcher::Delegate 108 virtual WindowController* GetExtensionWindowController() const OVERRIDE; 109 virtual content::WebContents* GetAssociatedWebContents() const OVERRIDE; 110 virtual content::WebContents* GetVisibleWebContents() const OVERRIDE; 111 112 // content::NotificationObserver 113 virtual void Observe(int type, 114 const content::NotificationSource& source, 115 const content::NotificationDetails& details) OVERRIDE; 116 117 private: 118 // Implemented per-platform. Create the platform-specific ExtensionView. 119 static scoped_ptr<ExtensionView> CreateExtensionView(ExtensionViewHost* host, 120 Browser* browser); 121 122 // Insert a default style sheet for Extension Infobars. 123 void InsertInfobarCSS(); 124 125 // Optional view that shows the rendered content in the UI. 126 scoped_ptr<ExtensionView> view_; 127 128 // The relevant WebContents associated with this ExtensionViewHost, if any. 129 content::WebContents* associated_web_contents_; 130 131 // Observer to detect when the associated web contents is destroyed. 132 class AssociatedWebContentsObserver; 133 scoped_ptr<AssociatedWebContentsObserver> associated_web_contents_observer_; 134 135 // Manage popups overlaying the WebContents in this EVH. 136 // TODO(gbillock): should usually not be used -- instead use the parent 137 // window's popup manager. Should only be used when the EVH is created without 138 // a parent window. 139 scoped_ptr<web_modal::PopupManager> popup_manager_; 140 141 DISALLOW_COPY_AND_ASSIGN(ExtensionViewHost); 142 }; 143 144 } // namespace extensions 145 146 #endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_HOST_H_ 147
