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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ | 5 #ifndef UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ |
| 6 #define UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ | 6 #define UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ |
| 7 | 7 |
| 8 #include <glib.h> | 8 #include <glib.h> |
| 9 #include <map> | 9 #include <map> |
| 10 #include <vector> | 10 #include <vector> |
| 11 | 11 |
| 12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
| 13 #include "ui/base/ui_export.h" | 13 #include "ui/base/ui_base_export.h" |
| 14 | 14 |
| 15 typedef void (*GCallback) (void); | 15 typedef void (*GCallback) (void); |
| 16 typedef struct _GObject GObject; | 16 typedef struct _GObject GObject; |
| 17 typedef struct _GtkWidget GtkWidget; | 17 typedef struct _GtkWidget GtkWidget; |
| 18 | 18 |
| 19 namespace ui { | 19 namespace ui { |
| 20 | 20 |
| 21 // A class that ensures that callbacks don't run on stale owner objects. Similar | 21 // A class that ensures that callbacks don't run on stale owner objects. Similar |
| 22 // in spirit to NotificationRegistrar. Use as follows: | 22 // in spirit to NotificationRegistrar. Use as follows: |
| 23 // | 23 // |
| 24 // class ChromeObject { | 24 // class ChromeObject { |
| 25 // public: | 25 // public: |
| 26 // ChromeObject() { | 26 // ChromeObject() { |
| 27 // ... | 27 // ... |
| 28 // | 28 // |
| 29 // signals_.Connect(widget, "event", CallbackThunk, this); | 29 // signals_.Connect(widget, "event", CallbackThunk, this); |
| 30 // } | 30 // } |
| 31 // | 31 // |
| 32 // ... | 32 // ... |
| 33 // | 33 // |
| 34 // private: | 34 // private: |
| 35 // GtkSignalRegistrar signals_; | 35 // GtkSignalRegistrar signals_; |
| 36 // }; | 36 // }; |
| 37 // | 37 // |
| 38 // When |signals_| goes down, it will disconnect the handlers connected via | 38 // When |signals_| goes down, it will disconnect the handlers connected via |
| 39 // Connect. | 39 // Connect. |
| 40 class UI_EXPORT GtkSignalRegistrar { | 40 class UI_BASE_EXPORT GtkSignalRegistrar { |
| 41 public: | 41 public: |
| 42 GtkSignalRegistrar(); | 42 GtkSignalRegistrar(); |
| 43 ~GtkSignalRegistrar(); | 43 ~GtkSignalRegistrar(); |
| 44 | 44 |
| 45 // Connect before the default handler. Returns the handler id. | 45 // Connect before the default handler. Returns the handler id. |
| 46 glong Connect(gpointer instance, const gchar* detailed_signal, | 46 glong Connect(gpointer instance, const gchar* detailed_signal, |
| 47 GCallback signal_handler, gpointer data); | 47 GCallback signal_handler, gpointer data); |
| 48 // Connect after the default handler. Returns the handler id. | 48 // Connect after the default handler. Returns the handler id. |
| 49 glong ConnectAfter(gpointer instance, const gchar* detailed_signal, | 49 glong ConnectAfter(gpointer instance, const gchar* detailed_signal, |
| 50 GCallback signal_handler, gpointer data); | 50 GCallback signal_handler, gpointer data); |
| (...skipping 15 matching lines...) Expand all Loading... |
| 66 GCallback signal_handler, gpointer data, bool after); | 66 GCallback signal_handler, gpointer data, bool after); |
| 67 | 67 |
| 68 HandlerMap handler_lists_; | 68 HandlerMap handler_lists_; |
| 69 | 69 |
| 70 DISALLOW_COPY_AND_ASSIGN(GtkSignalRegistrar); | 70 DISALLOW_COPY_AND_ASSIGN(GtkSignalRegistrar); |
| 71 }; | 71 }; |
| 72 | 72 |
| 73 } // namespace ui | 73 } // namespace ui |
| 74 | 74 |
| 75 #endif // UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ | 75 #endif // UI_BASE_GTK_GTK_SIGNAL_REGISTRAR_H_ |
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