Add ability to override workspace layout

A plugin that does workspace management on its on may want to set the
workspace layout without having to deal with putting a property
on the root window to be read back and parsed.

Add meta_screen_override_window_layout() that allows the same types
of layouts as _NET_DESKTOP_LAYOUT but without setting a property.

https://bugzilla.gnome.org/show_bug.cgi?id=640552
This commit is contained in:
Owen W. Taylor 2011-01-24 15:40:30 -05:00
parent 2df95970d9
commit 8b220079d0
3 changed files with 54 additions and 8 deletions

View File

@ -50,14 +50,6 @@ struct _MetaMonitorInfo
typedef void (* MetaScreenWindowFunc) (MetaScreen *screen, MetaWindow *window,
gpointer user_data);
typedef enum
{
META_SCREEN_TOPLEFT,
META_SCREEN_TOPRIGHT,
META_SCREEN_BOTTOMLEFT,
META_SCREEN_BOTTOMRIGHT
} MetaScreenCorner;
typedef enum
{
META_SCREEN_UP,
@ -127,6 +119,7 @@ struct _MetaScreen
int columns_of_workspaces;
MetaScreenCorner starting_corner;
guint vertical_workspaces : 1;
guint workspace_layout_overridden : 1;
guint keys_grabbed : 1;
guint all_keys_grabbed : 1;

View File

@ -2163,6 +2163,9 @@ meta_screen_update_workspace_layout (MetaScreen *screen)
{
gulong *list;
int n_items;
if (screen->workspace_layout_overridden)
return;
list = NULL;
n_items = 0;
@ -2249,6 +2252,43 @@ meta_screen_update_workspace_layout (MetaScreen *screen)
screen->starting_corner);
}
/**
* meta_screen_override_workspace_layout:
* @screen: a #MetaScreen
* @starting_corner: the corner at which the first workspace is found
* @vertical_layout: if %TRUE the workspaces are laid out in columns rather than rows
* @n_rows: number of rows of workspaces, or -1 to determine the number of rows from
* @n_columns and the total number of workspaces
* @n_columns: number of columns of workspaces, or -1 to determine the number of columns from
* @n_rows and the total number of workspaces
*
* Explicitly set the layout of workspaces. Once this has been called, the contents of the
* _NET_DESKTOP_LAYOUT property on the root window are completely ignored.
*/
void
meta_screen_override_workspace_layout (MetaScreen *screen,
MetaScreenCorner starting_corner,
gboolean vertical_layout,
int n_rows,
int n_columns)
{
g_return_if_fail (META_IS_SCREEN (screen));
g_return_if_fail (n_rows > 0 || n_columns > 0);
g_return_if_fail (n_rows != 0 && n_columns != 0);
screen->workspace_layout_overridden = TRUE;
screen->vertical_workspaces = vertical_layout != FALSE;
screen->starting_corner = starting_corner;
screen->rows_of_workspaces = n_rows;
screen->columns_of_workspaces = n_columns;
/* In theory we should remove _NET_DESKTOP_LAYOUT from _NET_SUPPORTED at this
* point, but it's unlikely that anybody checks that, and it's unlikely that
* anybody who checks that handles changes, so we'd probably just create
* a race condition. And it's hard to implement with the code in set_supported_hint()
*/
}
static void
set_workspace_names (MetaScreen *screen)
{

View File

@ -80,4 +80,17 @@ void meta_screen_get_monitor_geometry (MetaScreen *screen,
int monitor,
MetaRectangle *geometry);
typedef enum
{
META_SCREEN_TOPLEFT,
META_SCREEN_TOPRIGHT,
META_SCREEN_BOTTOMLEFT,
META_SCREEN_BOTTOMRIGHT
} MetaScreenCorner;
void meta_screen_override_workspace_layout (MetaScreen *screen,
MetaScreenCorner starting_corner,
gboolean vertical_layout,
int n_rows,
int n_columns);
#endif