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| 1 // Copyright (c) 2011 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 COMPONENTS_APP_MODAL_APP_MODAL_DIALOG_H_ | |
| 6 #define COMPONENTS_APP_MODAL_APP_MODAL_DIALOG_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/macros.h" | |
| 11 #include "base/strings/string16.h" | |
| 12 #include "build/build_config.h" | |
| 13 | |
| 14 namespace content { | |
| 15 class WebContents; | |
| 16 } | |
| 17 | |
| 18 namespace app_modal { | |
| 19 | |
| 20 class NativeAppModalDialog; | |
| 21 | |
| 22 // A controller+model base class for modal dialogs. | |
| 23 class AppModalDialog { | |
| 24 public: | |
| 25 // A union of data necessary to determine the type of message box to | |
| 26 // show. | |
| 27 AppModalDialog(content::WebContents* web_contents, | |
| 28 const base::string16& title); | |
| 29 virtual ~AppModalDialog(); | |
| 30 | |
| 31 // Called by the AppModalDialogQueue to show this dialog. | |
| 32 void ShowModalDialog(); | |
| 33 | |
| 34 // Called by the AppModalDialogQueue to activate the dialog. | |
| 35 void ActivateModalDialog(); | |
| 36 | |
| 37 // Closes the dialog if it is showing. | |
| 38 void CloseModalDialog(); | |
| 39 | |
| 40 // Completes dialog handling, shows next modal dialog from the queue. | |
| 41 // TODO(beng): Get rid of this method. | |
| 42 void CompleteDialog(); | |
| 43 | |
| 44 base::string16 title() const { return title_; } | |
| 45 NativeAppModalDialog* native_dialog() const { return native_dialog_; } | |
| 46 content::WebContents* web_contents() const { return web_contents_; } | |
| 47 | |
| 48 // Returns true if the dialog is still valid. As dialogs are created they are | |
| 49 // added to the AppModalDialogQueue. When the current modal dialog finishes | |
| 50 // and it's time to show the next dialog in the queue IsValid is invoked. | |
| 51 // If IsValid returns false the dialog is deleted and not shown. | |
| 52 bool IsValid(); | |
| 53 | |
| 54 // Methods overridable by AppModalDialog subclasses: | |
| 55 | |
| 56 // Invalidates the dialog, therefore causing it to not be shown when its turn | |
| 57 // to be shown comes around. | |
| 58 virtual void Invalidate(); | |
| 59 | |
| 60 // Used only for testing. Returns whether the dialog is a JavaScript modal | |
| 61 // dialog. | |
| 62 virtual bool IsJavaScriptModalDialog(); | |
| 63 | |
| 64 protected: | |
| 65 // Overridden by subclasses to create the feature-specific native dialog box. | |
| 66 virtual NativeAppModalDialog* CreateNativeDialog() = 0; | |
| 67 | |
| 68 private: | |
| 69 // Information about the message box is held in the following variables. | |
| 70 base::string16 title_; | |
| 71 | |
| 72 // True if CompleteDialog was called. | |
| 73 bool completed_; | |
| 74 | |
| 75 // False if the dialog should no longer be shown, e.g. because the underlying | |
| 76 // tab navigated away while the dialog was queued. | |
| 77 bool valid_; | |
| 78 | |
| 79 // The toolkit-specific implementation of the app modal dialog box. | |
| 80 NativeAppModalDialog* native_dialog_; | |
| 81 | |
| 82 content::WebContents* web_contents_; | |
| 83 | |
| 84 DISALLOW_COPY_AND_ASSIGN(AppModalDialog); | |
| 85 }; | |
| 86 | |
| 87 // An interface to observe that a modal dialog is shown. | |
| 88 class AppModalDialogObserver { | |
| 89 public: | |
| 90 AppModalDialogObserver(); | |
| 91 virtual ~AppModalDialogObserver(); | |
| 92 | |
| 93 // Called when the modal dialog is shown. | |
| 94 virtual void Notify(AppModalDialog* dialog) = 0; | |
| 95 | |
| 96 private: | |
| 97 DISALLOW_COPY_AND_ASSIGN(AppModalDialogObserver); | |
| 98 }; | |
| 99 | |
| 100 } // namespace app_modal | |
| 101 | |
| 102 #endif // COMPONENTS_APP_MODAL_APP_MODAL_DIALOG_H_ | |
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Chromium Code Reviews
Issue 2901583002:
Fold AppModalDialog into its only subclass, JavaScriptAppModalDialog. (Closed)
