Introduce ESelectable and EFocusTracker.

EFocusTracker tracks the input focus within a window and helps keep
the sensitivity of "selectable" actions in the main menu up-to-date.
Selectable actions include Cut, Copy, Paste, Select All and Delete.

EFocusTracker has built-in support for widgets that implement the
GtkEditable interface such as GtkEntry and GtkTextView.  It also
supports custom widgets that implement the ESelectable interface,
which is a subset of GtkEditable and can apply to anything that
displays selectable content (esp. tree views and ETables).

This commit integrates EFocusTracker with EShellWindow, CompEditor,
EMsgComposer, and ESignatureManager.

It also bumps the GtkHTML requirement to 2.29.5 to utilize the new
GtkhtmlEditor:html constructor property.

1 files changed, 56 insertions, 55 deletions

diff --git a/mail/message-list.h b/mail/message-list.h
index 72960babe1..e239944783 100644
--- a/mail/message-list.h
+++ b/mail/message-list.h
@@ -170,9 +170,9 @@ struct _MessageListClass {
 	ETreeClass parent_class;
 
 	/* signals - select a message */
-	void (*message_selected) (MessageList *ml, const gchar *uid);
-	void (*message_list_built) (MessageList *ml);
-	void (*message_list_scrolled) (MessageList *ml);
+	void (*message_selected) (MessageList *message_list, const gchar *uid);
+	void (*message_list_built) (MessageList *message_list);
+	void (*message_list_scrolled) (MessageList *message_list);
 };
 
 typedef enum {
@@ -182,58 +182,59 @@ typedef enum {
 	MESSAGE_LIST_SELECT_WRAP = 1<<1 /* option bit */
 } MessageListSelectDirection;
 
-GType          message_list_get_type   (void);
-GtkWidget     *message_list_new        (EShellBackend *shell_backend);
-EShellBackend  *message_list_get_shell_backend (MessageList *message_list);
-void           message_list_set_folder (MessageList *message_list, CamelFolder *camel_folder, const gchar *uri, gboolean outgoing);
-
-void	       message_list_freeze(MessageList *ml);
-void	       message_list_thaw(MessageList *ml);
-
-GPtrArray     *message_list_get_uids(MessageList *message_list);
-GPtrArray     *message_list_get_selected(MessageList *ml);
-void           message_list_set_selected(MessageList *ml, GPtrArray *uids);
-
-/* select next/prev message helpers */
-gboolean       message_list_select     (MessageList *message_list,
-					MessageListSelectDirection direction,
-					guint32 flags,
-					guint32 mask);
-gboolean message_list_can_select(MessageList *ml, MessageListSelectDirection direction, guint32 flags, guint32 mask);
-
-void           message_list_select_uid (MessageList *message_list,
-					const gchar *uid);
-
-void           message_list_select_next_thread (MessageList *ml);
-
-/* selection manipulation */
-void           message_list_select_all (MessageList *ml);
-void           message_list_select_thread (MessageList *ml);
-void           message_list_select_subthread (MessageList *ml);
-void           message_list_invert_selection (MessageList *ml);
-
-/* clipboard stuff */
-void	       message_list_copy(MessageList *ml, gboolean cut);
-void           message_list_paste (MessageList *ml);
-
-/* info */
-guint   message_list_length (MessageList *ml);
-guint   message_list_hidden (MessageList *ml);
-
-/* hide specific messages */
-void	       message_list_hide_add (MessageList *ml, const gchar *expr, guint lower, guint upper);
-void	       message_list_hide_uids (MessageList *ml, GPtrArray *uids);
-void	       message_list_hide_clear (MessageList *ml);
-
-void	       message_list_set_threaded (MessageList *ml, gboolean threaded);
-void           message_list_set_threaded_expand_all (MessageList *ml);
-void           message_list_set_threaded_collapse_all (MessageList *ml);
-
-void	       message_list_set_hidedeleted (MessageList *ml, gboolean hidedeleted);
-void	       message_list_set_search (MessageList *ml, const gchar *search);
-void	       message_list_ensure_message (MessageList *ml, const gchar *uid);
-
-void           message_list_save_state (MessageList *ml);
+GType		message_list_get_type		(void);
+GtkWidget *	message_list_new		(EShellBackend *shell_backend);
+EShellBackend *	message_list_get_shell_backend	(MessageList *message_list);
+void		message_list_set_folder		(MessageList *message_list,
+						 CamelFolder *camel_folder,
+						 const gchar *uri,
+						 gboolean outgoing);
+void		message_list_freeze		(MessageList *message_list);
+void		message_list_thaw		(MessageList *message_list);
+GPtrArray *	message_list_get_uids		(MessageList *message_list);
+GPtrArray *	message_list_get_selected	(MessageList *message_list);
+void		message_list_set_selected	(MessageList *message_list,
+						 GPtrArray *uids);
+gboolean	message_list_select		(MessageList *message_list,
+					 	 MessageListSelectDirection direction,
+						 guint32 flags,
+						 guint32 mask);
+gboolean	message_list_can_select		(MessageList *message_list,
+						 MessageListSelectDirection direction,
+						 guint32 flags,
+						 guint32 mask);
+void		message_list_select_uid		(MessageList *message_list,
+						 const gchar *uid);
+void		message_list_select_next_thread	(MessageList *message_list);
+void		message_list_select_all		(MessageList *message_list);
+void		message_list_select_thread	(MessageList *message_list);
+void		message_list_select_subthread	(MessageList *message_list);
+void		message_list_invert_selection	(MessageList *message_list);
+void		message_list_copy		(MessageList *message_list,
+						 gboolean cut);
+void		message_list_paste		(MessageList *message_list);
+guint		message_list_length		(MessageList *message_list);
+guint		message_list_hidden		(MessageList *message_list);
+void		message_list_hide_add		(MessageList *message_list,
+						 const gchar *expr,
+						 guint lower,
+						 guint upper);
+void		message_list_hide_uids		(MessageList *message_list,
+						 GPtrArray *uids);
+void		message_list_hide_clear		(MessageList *message_list);
+void		message_list_set_threaded	(MessageList *message_list,
+						 gboolean threaded);
+void		message_list_set_threaded_expand_all
+						(MessageList *message_list);
+void		message_list_set_threaded_collapse_all
+						(MessageList *message_list);
+void		message_list_set_hidedeleted	(MessageList *message_list,
+						 gboolean hidedeleted);
+void		message_list_set_search		(MessageList *message_list,
+						 const gchar *search);
+void		message_list_ensure_message	(MessageList *message_list,
+						 const gchar *uid);
+void		message_list_save_state		(MessageList *message_list);
 
 #define MESSAGE_LIST_LOCK(m, l) g_mutex_lock(((MessageList *)m)->l)
 #define MESSAGE_LIST_UNLOCK(m, l) g_mutex_unlock(((MessageList *)m)->l)