Index: chrome/browser/ui/views/message_center/tray_watcher_win.h |
diff --git a/chrome/browser/ui/views/message_center/tray_watcher_win.h b/chrome/browser/ui/views/message_center/tray_watcher_win.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..057c52bf05616bd186431a22017dfdacb5c7c2fa |
--- /dev/null |
+++ b/chrome/browser/ui/views/message_center/tray_watcher_win.h |
@@ -0,0 +1,97 @@ |
+// Copyright 2014 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_TRAY_WATCHER_WIN_H_ |
+#define CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_TRAY_WATCHER_WIN_H_ |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "base/strings/string16.h" |
+#include "base/threading/non_thread_safe.h" |
+#include "base/win/iunknown_impl.h" |
+#include "base/win/scoped_comptr.h" |
+ |
+namespace message_center { |
+ |
+// The known values for NOTIFYITEM's dwPreference member. |
+enum NOTIFYITEM_PREFERENCE { |
+ // In Windows UI: "Only show notifications." |
+ PREFERENCE_SHOW_WHEN_ACTIVE = 0x00, |
Dmitry Titov
2014/03/18 22:34:13
that leading 0 is mysterious...
dewittj
2014/03/19 18:36:15
Done.
|
+ // In Windows UI: "Hide icon and notifications." |
+ PREFERENCE_SHOW_NEVER = 0x01, |
+ // In Windows UI: "Show icon and notifications." |
+ PREFERENCE_SHOW_ALWAYS = 0x02 |
+}; |
+ |
+const DWORD NOTIFYITEM_PREFERENCE_COUNT = 0x03; |
+ |
+// NOTIFYITEM describes an entry in the taskbar's registry of status icons. |
+// This structure outlives the process that creates the status item. |
Dmitry Titov
2014/03/18 22:34:13
This comment is unclear. This structure or the reg
dewittj
2014/03/19 18:36:15
Done.
|
+struct NOTIFYITEM { |
+ PWSTR pszExeName; // The file name of the creating executable. |
+ PWSTR pszTip; // The last hover-text value associated with this status item. |
+ HICON hIcon; // The icon associated with this status item. |
+ HWND hWnd; // The HWND associated with the status item. |
+ DWORD dwPreference; // Determines the behavior of the icon with respect to |
+ // the taskbar. Values taken from NOTIFYITEM_PREFERENCE. |
+ UINT uID; // The ID specified by the application. (hWnd, uID) is unique. |
+ GUID guidItem; // The GUID specified by the application, alternative to uID. |
+}; |
+ |
+// INotificationCB GUID |
+[uuid("D782CCBA-AFB0-43F1-94DB-FDA3779EACCB")] interface INotificationCB |
+ : public IUnknown { |
+ STDMETHOD(Notify)(ULONG event, NOTIFYITEM* notify_item) = 0; |
+}; |
+ |
+class TrayWatcherWin : public INotificationCB, |
+ public base::win::IUnknownImpl, |
+ public base::NonThreadSafe { |
+ public: |
+ explicit TrayWatcherWin(UINT icon_id, HWND window); |
Dmitry Titov
2014/03/18 22:34:13
no need to have 'explicit' with 2 params.
dewittj
2014/03/19 18:36:15
Done.
|
+ |
+ // Creates an instance of TrayNotify, and ensures that it supports either |
Dmitry Titov
2014/03/18 22:34:13
The comment and the name of method seem to talk ab
dewittj
2014/03/19 18:36:15
Done.
|
+ // ITrayNotify or ITrayNotifyWin8. Returns true on success. |
+ void EnsureTrayIconVisible(); |
+ |
+ // IUnknown. |
+ STDMETHOD_(ULONG, AddRef)() OVERRIDE; |
+ STDMETHOD_(ULONG, Release)() OVERRIDE; |
+ STDMETHOD(QueryInterface)(REFIID, PVOID*)OVERRIDE; |
+ |
+ // INotificationCB. |
+ STDMETHOD(Notify)(ULONG, NOTIFYITEM*); |
+ |
+ ~TrayWatcherWin(); |
+ |
+ private: |
+ friend class TrayWatcherWinTest; |
+ |
+ enum InterfaceVersion { |
+ INTERFACE_VERSION_LEGACY = 0, |
+ INTERFACE_VERSION_WIN8, |
+ INTERFACE_VERSION_UNKNOWN |
+ }; |
+ |
+ bool CreateTrayNotify(); |
+ scoped_ptr<NOTIFYITEM> RegisterCallback(); |
+ |
+ bool RegisterCallbackWin8(); |
+ bool RegisterCallbackLegacy(); |
+ |
+ void SendNotifyItemUpdate(scoped_ptr<NOTIFYITEM> notify_item); |
+ |
+ scoped_ptr<NOTIFYITEM> notify_item_; |
+ |
+ // Storing IUnknown since we will need to use different interfaces |
+ // for different versions of Windows. |
+ base::win::ScopedComPtr<IUnknown> tray_notify_; |
+ InterfaceVersion interface_version_; |
+ |
+ UINT icon_id_; |
+ HWND window_; |
+ base::string16 file_name_; |
+}; |
+ |
+} // namespace message_center |
+#endif // CHROME_BROWSER_UI_VIEWS_MESSAGE_CENTER_TRAY_WATCHER_WIN_H_ |