The Tor Browser / file comparison
comparison: widget/windows/TaskbarPreview.h
widget/windows/TaskbarPreview.h
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- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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| -1:000000000000 | 0:d2ceaeee36fd |
|---|---|
| 1 /* vim: se cin sw=2 ts=2 et : */ | |
| 2 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- | |
| 3 * | |
| 4 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #ifndef __mozilla_widget_TaskbarPreview_h__ | |
| 9 #define __mozilla_widget_TaskbarPreview_h__ | |
| 10 | |
| 11 #include <windows.h> | |
| 12 #include <shobjidl.h> | |
| 13 #undef LogSeverity // SetupAPI.h #defines this as DWORD | |
| 14 | |
| 15 #include <nsITaskbarPreview.h> | |
| 16 #include <nsAutoPtr.h> | |
| 17 #include <nsString.h> | |
| 18 #include <nsWeakPtr.h> | |
| 19 #include <nsIDocShell.h> | |
| 20 #include "WindowHook.h" | |
| 21 | |
| 22 namespace mozilla { | |
| 23 namespace widget { | |
| 24 | |
| 25 class TaskbarPreview : public nsITaskbarPreview | |
| 26 { | |
| 27 public: | |
| 28 TaskbarPreview(ITaskbarList4 *aTaskbar, nsITaskbarPreviewController *aController, HWND aHWND, nsIDocShell *aShell); | |
| 29 virtual ~TaskbarPreview(); | |
| 30 | |
| 31 NS_DECL_NSITASKBARPREVIEW | |
| 32 | |
| 33 protected: | |
| 34 // Called to update ITaskbarList4 dependent properties | |
| 35 virtual nsresult UpdateTaskbarProperties(); | |
| 36 | |
| 37 // Invoked when the preview is made visible | |
| 38 virtual nsresult Enable(); | |
| 39 // Invoked when the preview is made invisible | |
| 40 virtual nsresult Disable(); | |
| 41 | |
| 42 // Detaches this preview from the nsWindow instance it's tied to | |
| 43 virtual void DetachFromNSWindow(); | |
| 44 | |
| 45 // Determines if the window is available and a destroy has not yet started | |
| 46 bool IsWindowAvailable() const; | |
| 47 | |
| 48 // Marks this preview as being active | |
| 49 virtual nsresult ShowActive(bool active) = 0; | |
| 50 // Gets a reference to the window used to handle the preview messages | |
| 51 virtual HWND& PreviewWindow() = 0; | |
| 52 | |
| 53 // Window procedure for the PreviewWindow (hooked for window previews) | |
| 54 virtual LRESULT WndProc(UINT nMsg, WPARAM wParam, LPARAM lParam); | |
| 55 | |
| 56 // Returns whether or not the taskbar icon has been created for mWnd The | |
| 57 // ITaskbarList4 API requires that we wait until the icon has been created | |
| 58 // before we can call its methods. | |
| 59 bool CanMakeTaskbarCalls(); | |
| 60 | |
| 61 // Gets the WindowHook for the nsWindow | |
| 62 WindowHook &GetWindowHook(); | |
| 63 | |
| 64 // Enables/disables custom drawing for the given window | |
| 65 static void EnableCustomDrawing(HWND aHWND, bool aEnable); | |
| 66 | |
| 67 // MSCOM Taskbar interface | |
| 68 nsRefPtr<ITaskbarList4> mTaskbar; | |
| 69 // Controller for this preview | |
| 70 nsCOMPtr<nsITaskbarPreviewController> mController; | |
| 71 // The HWND to the nsWindow that this object previews | |
| 72 HWND mWnd; | |
| 73 // Whether or not this preview is visible | |
| 74 bool mVisible; | |
| 75 | |
| 76 private: | |
| 77 // Called when the tooltip should be updated | |
| 78 nsresult UpdateTooltip(); | |
| 79 | |
| 80 // Requests the controller to draw into a canvas of the given width and | |
| 81 // height. The resulting bitmap is sent to the DWM to display. | |
| 82 void DrawBitmap(uint32_t width, uint32_t height, bool isPreview); | |
| 83 | |
| 84 // WindowHook procedure for hooking mWnd | |
| 85 static bool MainWindowHook(void *aContext, | |
| 86 HWND hWnd, UINT nMsg, | |
| 87 WPARAM wParam, LPARAM lParam, | |
| 88 LRESULT *aResult); | |
| 89 | |
| 90 // Docshell corresponding to the <window> the nsWindow contains | |
| 91 nsWeakPtr mDocShell; | |
| 92 nsString mTooltip; | |
| 93 | |
| 94 // The preview currently marked as active in the taskbar. nullptr if no | |
| 95 // preview is active (some other window is). | |
| 96 static TaskbarPreview *sActivePreview; | |
| 97 }; | |
| 98 | |
| 99 } // namespace widget | |
| 100 } // namespace mozilla | |
| 101 | |
| 102 #endif /* __mozilla_widget_TaskbarPreview_h__ */ | |
| 103 |
