# MATE Panel: Center-stick support for applets (and better right-stick
# support, too)
#
# Conventionally, the applets on a MATE Panel are positioned relative to the
# left edge of the panel (if the panel is horizontal) or the top edge (if the
# panel is vertical). There has also been some (buggy) support for positioning
# of applets relative to the right (or bottom) edge of the panel, so that
# applets on the right side of the panel will stay on the right side even if
# the user changes screen resolutions or if the panel changes size for some
# other reason.
#
# However, many users want to also place applets at or near the center of their
# panel(s). There is no such conventional support for positioning applets
# relative to the center of the panel, so users have positioned applets near
# the center of the panel -- but the position recorded is relative to the left
# side of the panel. As such, the applets will almost certainly shift over
# to the left or right slightly if the panel is ever resized, and the user will
# have to reposition all those centered applets yet again. This is especially
# frustrating if the user switches monitors on a regular basis!
#
# This patch radically revamps the MATE Panel's positioning framework, and
# deprecates the original "right-stick" feature. To replace the right-stick
# feature, this patch instead associates an "edge relativity" setting with
# each and every panel applet: An applet can be relative to the start (left/
# top), end (right/bottom), or center of the panel. This setting can be
# changed using DConf/GSettings, using a custom panel layout file, or even
# by simply dragging the applet to the appropriate place on the panel.
# (Conventionally, applets are not even right-stuck automatically even when the
# user drags the applet over to the far right of the panel!) As a bonus, when
# the user drags an applet across the center of the panel, the applet will
# temporarily "stick" to the very center of the panel, to allow the user to
# very precisely align any applet they wish.
#
# Have fun!
diff -uprN mate-panel-1.26.1_original/data/default.layout mate-panel-1.26.1_patched-center-stick/data/default.layout
--- mate-panel-1.26.1_original/data/default.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/default.layout 2022-01-17 11:29:04.576002287 -0500
@@ -19,7 +19,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=top
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -27,7 +27,7 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=top
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object show-desktop]
@@ -49,5 +49,5 @@ object-type=applet
applet-iid=WnckletFactory::WorkspaceSwitcherApplet
toplevel-id=bottom
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
diff -uprN mate-panel-1.26.1_original/data/fedora.layout mate-panel-1.26.1_patched-center-stick/data/fedora.layout
--- mate-panel-1.26.1_original/data/fedora.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/fedora.layout 2022-01-17 11:29:04.580002287 -0500
@@ -40,7 +40,7 @@ object-type=applet
applet-iid=GvcAppletFactory::GvcApplet
toplevel-id=top
position=20
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object notification-area]
@@ -48,7 +48,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=top
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -56,7 +56,7 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=top
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object show-desktop]
@@ -78,5 +78,5 @@ object-type=applet
applet-iid=WnckletFactory::WorkspaceSwitcherApplet
toplevel-id=bottom
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
diff -uprN mate-panel-1.26.1_original/data/linuxmint.layout mate-panel-1.26.1_patched-center-stick/data/linuxmint.layout
--- mate-panel-1.26.1_original/data/linuxmint.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/linuxmint.layout 2022-01-17 11:29:04.580002287 -0500
@@ -29,7 +29,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=bottom
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -37,5 +37,5 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=bottom
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
diff -uprN mate-panel-1.26.1_original/data/mageia.layout mate-panel-1.26.1_patched-center-stick/data/mageia.layout
--- mate-panel-1.26.1_original/data/mageia.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/mageia.layout 2022-01-17 11:29:04.580002287 -0500
@@ -40,7 +40,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=top
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -48,7 +48,7 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=top
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object show-desktop]
@@ -70,6 +70,6 @@ object-type=applet
applet-iid=WnckletFactory::WorkspaceSwitcherApplet
toplevel-id=bottom
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
diff -uprN mate-panel-1.26.1_original/data/opensuse.layout mate-panel-1.26.1_patched-center-stick/data/opensuse.layout
--- mate-panel-1.26.1_original/data/opensuse.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/opensuse.layout 2022-01-17 11:29:04.580002287 -0500
@@ -29,7 +29,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=bottom
position=30
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object workspace-switcher]
@@ -37,7 +37,7 @@ object-type=applet
applet-iid=WnckletFactory::WorkspaceSwitcherApplet
toplevel-id=bottom
position=20
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -45,7 +45,7 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=bottom
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object show-desktop]
@@ -53,5 +53,5 @@ object-type=applet
applet-iid=WnckletFactory::ShowDesktopApplet
toplevel-id=bottom
position=0
-panel-right-stick=true
+relative-to-edge=end
locked=true
diff -uprN mate-panel-1.26.1_original/data/org.mate.panel.object.gschema.xml.in mate-panel-1.26.1_patched-center-stick/data/org.mate.panel.object.gschema.xml.in
--- mate-panel-1.26.1_original/data/org.mate.panel.object.gschema.xml.in 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/org.mate.panel.object.gschema.xml.in 2022-01-17 11:20:30.588014093 -0500
@@ -17,8 +17,13 @@
false
- Interpret position relative to bottom/right edge
- If true, the position of the object is interpreted relative to the right (or bottom if vertical) edge of the panel.
+ Interpret position relative to bottom/right edge (DEPRECATED)
+ If true, the position of the object is interpreted relative to the right (or bottom if vertical) edge of the panel. This key is provided only for backward compatibility with old panel layouts; please set the "relative-to-edge" property instead.
+
+
+ 'start'
+ Whether to interpret the value of the "position" key relative to the start, center or end of the panel
+ The position of the object is interpreted relative to one edge of the panel. The value of this key determines whether the object is positioned relative to the start (left/top edge), center, or end (right/bottom edge) of the panel. Valid values for this key are 'start', 'center', and 'end'.
false
diff -uprN mate-panel-1.26.1_original/data/ubuntu.layout mate-panel-1.26.1_patched-center-stick/data/ubuntu.layout
--- mate-panel-1.26.1_original/data/ubuntu.layout 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/data/ubuntu.layout 2022-01-17 11:29:04.580002287 -0500
@@ -27,7 +27,7 @@ object-type=applet
applet-iid=NotificationAreaAppletFactory::NotificationArea
toplevel-id=top
position=30
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object clock]
@@ -35,14 +35,14 @@ object-type=applet
applet-iid=ClockAppletFactory::ClockApplet
toplevel-id=top
position=20
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object shutdown]
action-type=shutdown
object-type=action
position=10
-panel-right-stick=true
+relative-to-edge=end
toplevel-id=top
locked=true
@@ -65,7 +65,7 @@ object-type=applet
applet-iid=WnckletFactory::WorkspaceSwitcherApplet
toplevel-id=bottom
position=10
-panel-right-stick=true
+relative-to-edge=end
locked=true
[Object trashapplet]
@@ -74,4 +74,4 @@ position=0
toplevel-id=bottom
applet-iid=TrashAppletFactory::TrashApplet
object-type=applet
-panel-right-stick=true
+relative-to-edge=end
diff -uprN mate-panel-1.26.1_original/mate-panel/applet.c mate-panel-1.26.1_patched-center-stick/mate-panel/applet.c
--- mate-panel-1.26.1_original/mate-panel/applet.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/applet.c 2022-04-06 18:06:08.548388196 -0400
@@ -769,12 +769,12 @@ mate_panel_applet_destroy (GtkWidget *w
}
typedef struct {
- char *id;
- PanelObjectType type;
- char *toplevel_id;
- int position;
- guint right_stick : 1;
- guint locked : 1;
+ char *id;
+ PanelObjectType type;
+ char *toplevel_id;
+ int position;
+ PanelObjectEdgeRelativity edge_relativity;
+ guint locked : 1;
} MatePanelAppletToLoad;
/* Each time those lists get both empty,
@@ -901,9 +901,14 @@ mate_panel_applet_load_idle_handler (gpo
panel_widget = panel_toplevel_get_panel_widget (toplevel);
- if (applet->right_stick) {
- if (!panel_widget->packed)
- applet->position = panel_widget->size - applet->position;
+ if (applet->edge_relativity == PANEL_EDGE_CENTER ||
+ applet->edge_relativity == PANEL_EDGE_END) {
+ if (!panel_widget->packed) {
+ if (applet->edge_relativity == PANEL_EDGE_CENTER)
+ applet->position = panel_widget->size/2 + applet->position;
+ else if (applet->edge_relativity == PANEL_EDGE_END)
+ applet->position = panel_widget->size - applet->position;
+ }
else
applet->position = -1;
}
@@ -978,12 +983,12 @@ mate_panel_applet_load_idle_handler (gpo
}
void
-mate_panel_applet_queue_applet_to_load (const char *id,
- PanelObjectType type,
- const char *toplevel_id,
- int position,
- gboolean right_stick,
- gboolean locked)
+mate_panel_applet_queue_applet_to_load (const char *id,
+ PanelObjectType type,
+ const char *toplevel_id,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity,
+ gboolean locked)
{
MatePanelAppletToLoad *applet;
@@ -994,12 +999,12 @@ mate_panel_applet_queue_applet_to_load (
applet = g_new0 (MatePanelAppletToLoad, 1);
- applet->id = g_strdup (id);
- applet->type = type;
- applet->toplevel_id = g_strdup (toplevel_id);
- applet->position = position;
- applet->right_stick = right_stick != FALSE;
- applet->locked = locked != FALSE;
+ applet->id = g_strdup (id);
+ applet->type = type;
+ applet->toplevel_id = g_strdup (toplevel_id);
+ applet->position = position;
+ applet->edge_relativity = edge_relativity;
+ applet->locked = locked != FALSE;
mate_panel_applets_to_load = g_slist_prepend (mate_panel_applets_to_load, applet);
}
@@ -1012,8 +1017,8 @@ mate_panel_applet_compare (const MatePan
if ((c = strcmp (a->toplevel_id, b->toplevel_id)))
return c;
- else if (a->right_stick != b->right_stick)
- return b->right_stick ? -1 : 1;
+ else if (a->edge_relativity != b->edge_relativity)
+ return a->edge_relativity - b->edge_relativity;
else
return a->position - b->position;
}
@@ -1094,12 +1099,13 @@ mate_panel_applet_save_position (AppletI
const char *id,
gboolean immediate)
{
- PanelWidget *panel_widget;
- const char *toplevel_id;
- char *old_toplevel_id;
- gboolean right_stick;
- gboolean locked;
- int position;
+ PanelWidget *panel_widget;
+ const char *toplevel_id;
+ char *old_toplevel_id;
+ PanelObjectEdgeRelativity edge_relativity;
+ gboolean locked;
+ int position;
+ int size;
g_return_if_fail (applet_info != NULL);
@@ -1131,7 +1137,7 @@ mate_panel_applet_save_position (AppletI
g_free (old_toplevel_id);
/* Note: changing some properties of the panel that may not be locked down
- (e.g. background) can change the state of the "panel_right_stick" and
+ (e.g. background) can change the state of the "relative-to-edge" and
"position" properties of an applet that may in fact be locked down.
So check if these are writable before attempting to write them */
@@ -1142,18 +1148,23 @@ mate_panel_applet_save_position (AppletI
if (locked) {
/* Until position calculations are refactored to fix the issue of the panel applets
getting reordered on resolution changes...
- .. don't save position/right-stick on locked applets */
+ .. don't save position/relative-to-edge on locked applets */
return;
}
- right_stick = panel_is_applet_right_stick (applet_info->widget) ? 1 : 0;
- if (g_settings_is_writable (applet_info->settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY) &&
- (g_settings_get_boolean (applet_info->settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY) ? 1 : 0) != right_stick)
- g_settings_set_boolean (applet_info->settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY, right_stick);
+ edge_relativity = panel_determine_applet_edge_relativity (applet_info->widget);
+ if (g_settings_is_writable (applet_info->settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY) &&
+ g_settings_get_enum (applet_info->settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY) != edge_relativity)
+ g_settings_set_enum (applet_info->settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY, edge_relativity);
position = mate_panel_applet_get_position (applet_info);
- if (right_stick && !panel_widget->packed)
- position = panel_widget->size - position;
+ size = mate_panel_applet_get_size (applet_info);
+ if (!panel_widget->packed) {
+ if (edge_relativity == PANEL_EDGE_CENTER)
+ position -= panel_widget->size/2 - size/2;
+ else if (edge_relativity == PANEL_EDGE_END)
+ position = panel_widget->size - position - size;
+ }
if (g_settings_is_writable (applet_info->settings, PANEL_OBJECT_POSITION_KEY) &&
g_settings_get_int (applet_info->settings, PANEL_OBJECT_POSITION_KEY) != position)
@@ -1358,6 +1369,19 @@ mate_panel_applet_get_position (AppletIn
return applet_data->pos;
}
+int
+mate_panel_applet_get_size (AppletInfo *applet)
+{
+ AppletData *applet_data;
+
+ g_return_val_if_fail (applet != NULL, 0);
+ g_return_val_if_fail (G_IS_OBJECT (applet->widget), 0);
+
+ applet_data = g_object_get_data (G_OBJECT (applet->widget), MATE_PANEL_APPLET_DATA);
+
+ return applet_data->cells;
+}
+
gboolean
mate_panel_applet_can_freely_move (AppletInfo *applet)
{
@@ -1370,7 +1394,7 @@ mate_panel_applet_can_freely_move (Apple
if (!g_settings_is_writable (applet->settings, PANEL_OBJECT_TOPLEVEL_ID_KEY))
return FALSE;
- if (!g_settings_is_writable (applet->settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY))
+ if (!g_settings_is_writable (applet->settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY))
return FALSE;
return TRUE;
diff -uprN mate-panel-1.26.1_original/mate-panel/applet.h mate-panel-1.26.1_patched-center-stick/mate-panel/applet.h
--- mate-panel-1.26.1_original/mate-panel/applet.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/applet.h 2022-01-17 17:10:45.752306793 -0500
@@ -68,12 +68,12 @@ GSList *mate_panel_applet_list_apple
void mate_panel_applet_clean (AppletInfo *info);
-void mate_panel_applet_queue_applet_to_load (const char *id,
- PanelObjectType type,
- const char *toplevel_id,
- int position,
- gboolean right_stick,
- gboolean locked);
+void mate_panel_applet_queue_applet_to_load (const char *id,
+ PanelObjectType type,
+ const char *toplevel_id,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity,
+ gboolean locked);
void mate_panel_applet_load_queued_applets (gboolean initial_load);
gboolean mate_panel_applet_on_load_queue (const char *id);
@@ -96,8 +96,10 @@ void mate_panel_applet_save_posit
int mate_panel_applet_get_position (AppletInfo *applet);
+int mate_panel_applet_get_size (AppletInfo *applet);
+
/* True if all the keys relevant to moving are writable
- (position, toplevel_id, panel_right_stick) */
+ (position, toplevel-id, relative-to-edge) */
gboolean mate_panel_applet_can_freely_move (AppletInfo *applet);
/* True if the locked flag is writable */
diff -uprN mate-panel-1.26.1_original/mate-panel/panel.c mate-panel-1.26.1_patched-center-stick/mate-panel/panel.c
--- mate-panel-1.26.1_original/mate-panel/panel.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel.c 2022-01-17 12:17:05.076120783 -0500
@@ -1405,8 +1405,8 @@ panel_screen_from_panel_widget (PanelWid
return gtk_window_get_screen (GTK_WINDOW (panel->toplevel));
}
-gboolean
-panel_is_applet_right_stick (GtkWidget *applet)
+PanelObjectEdgeRelativity
+panel_determine_applet_edge_relativity (GtkWidget *applet)
{
GtkWidget *parent;
PanelWidget *panel_widget;
@@ -1422,7 +1422,7 @@ panel_is_applet_right_stick (GtkWidget *
if (!panel_toplevel_get_expand (panel_widget->toplevel))
return FALSE;
- return panel_widget_is_applet_stuck (panel_widget, applet);
+ return panel_widget_determine_applet_edge_relativity (panel_widget, applet);
}
static void
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-enums-gsettings.h mate-panel-1.26.1_patched-center-stick/mate-panel/panel-enums-gsettings.h
--- mate-panel-1.26.1_original/mate-panel/panel-enums-gsettings.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-enums-gsettings.h 2022-01-17 11:42:32.072035505 -0500
@@ -61,6 +61,12 @@ typedef enum {
} PanelObjectType;
typedef enum {
+ PANEL_EDGE_START = 0,
+ PANEL_EDGE_CENTER = 1,
+ PANEL_EDGE_END = 2
+} PanelObjectEdgeRelativity;
+
+typedef enum {
PANEL_ACTION_NONE = 0,
PANEL_ACTION_LOCK,
PANEL_ACTION_LOGOUT,
diff -uprN mate-panel-1.26.1_original/mate-panel/panel.h mate-panel-1.26.1_patched-center-stick/mate-panel/panel.h
--- mate-panel-1.26.1_original/mate-panel/panel.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel.h 2022-01-17 12:11:12.772106290 -0500
@@ -26,7 +26,7 @@ PanelData *panel_setup (PanelToplevel *t
GdkScreen *panel_screen_from_panel_widget (PanelWidget *panel);
-gboolean panel_is_applet_right_stick (GtkWidget *applet);
+PanelObjectEdgeRelativity panel_determine_applet_edge_relativity (GtkWidget *applet);
gboolean panel_check_dnd_target_data (GtkWidget *widget,
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-layout.c mate-panel-1.26.1_patched-center-stick/mate-panel/panel-layout.c
--- mate-panel-1.26.1_original/mate-panel/panel-layout.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-layout.c 2022-01-17 11:51:16.908057095 -0500
@@ -77,6 +77,7 @@ static PanelLayoutKeyDefinition panel_la
{ PANEL_OBJECT_TOPLEVEL_ID_KEY, G_TYPE_STRING },
{ PANEL_OBJECT_POSITION_KEY, G_TYPE_INT },
{ PANEL_OBJECT_PANEL_RIGHT_STICK_KEY, G_TYPE_BOOLEAN },
+ { PANEL_OBJECT_RELATIVE_TO_EDGE_KEY, G_TYPE_ENUM },
{ PANEL_OBJECT_LOCKED_KEY, G_TYPE_BOOLEAN },
{ PANEL_OBJECT_APPLET_IID_KEY, G_TYPE_STRING },
{ PANEL_OBJECT_ATTACHED_TOPLEVEL_ID_KEY, G_TYPE_STRING },
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-profile.c mate-panel-1.26.1_patched-center-stick/mate-panel/panel-profile.c
--- mate-panel-1.26.1_original/mate-panel/panel-profile.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-profile.c 2022-01-17 11:50:25.784054992 -0500
@@ -1184,10 +1184,10 @@ panel_profile_destroy_toplevel (const ch
}
char *
-panel_profile_prepare_object_with_id (PanelObjectType object_type,
- const char *toplevel_id,
- int position,
- gboolean right_stick)
+panel_profile_prepare_object_with_id (PanelObjectType object_type,
+ const char *toplevel_id,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity)
{
PanelGSettingsKeyType key_type;
char *id;
@@ -1204,7 +1204,7 @@ panel_profile_prepare_object_with_id (Pa
g_settings_set_enum (settings, PANEL_OBJECT_TYPE_KEY, object_type);
g_settings_set_string (settings, PANEL_OBJECT_TOPLEVEL_ID_KEY, toplevel_id);
g_settings_set_int (settings, PANEL_OBJECT_POSITION_KEY, position);
- g_settings_set_boolean (settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY, right_stick);
+ g_settings_set_boolean (settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY, edge_relativity);
/* Force writing the settings in order to reserve the object ID *now*,
* so that a later call to panel_profile_find_new_id() won't find the same
@@ -1218,15 +1218,15 @@ panel_profile_prepare_object_with_id (Pa
}
char *
-panel_profile_prepare_object (PanelObjectType object_type,
- PanelToplevel *toplevel,
- int position,
- gboolean right_stick)
+panel_profile_prepare_object (PanelObjectType object_type,
+ PanelToplevel *toplevel,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity)
{
return panel_profile_prepare_object_with_id (object_type,
panel_profile_get_toplevel_id (toplevel),
position,
- right_stick);
+ edge_relativity);
}
void
@@ -1244,13 +1244,14 @@ panel_profile_delete_object (AppletInfo
static void
panel_profile_load_object (char *id)
{
- PanelObjectType object_type;
- char *object_path;
- char *toplevel_id;
- int position;
- gboolean right_stick;
- gboolean locked;
- GSettings *settings;
+ PanelObjectType object_type;
+ char *object_path;
+ char *toplevel_id;
+ int position;
+ gboolean right_stick;
+ PanelObjectEdgeRelativity edge_relativity;
+ gboolean locked;
+ GSettings *settings;
object_path = g_strdup_printf (PANEL_OBJECT_PATH "%s/", id);
settings = g_settings_new_with_path (PANEL_OBJECT_SCHEMA, object_path);
@@ -1259,13 +1260,25 @@ panel_profile_load_object (char *id)
position = g_settings_get_int (settings, PANEL_OBJECT_POSITION_KEY);
toplevel_id = g_settings_get_string (settings, PANEL_OBJECT_TOPLEVEL_ID_KEY);
right_stick = g_settings_get_boolean (settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY);
+ edge_relativity = g_settings_get_enum (settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY);
locked = g_settings_get_boolean (settings, PANEL_OBJECT_LOCKED_KEY);
+ /* If a panel layout uses the deprecated 'panel-right-stick' property,
+ * set the new, more flexible 'relative-to-edge' property to the
+ * equivalent setting, then disable the 'panel-right-stick' property
+ * so it doesn't interfere in the future.
+ */
+ if (right_stick) {
+ edge_relativity = PANEL_EDGE_END;
+ g_settings_set_enum (settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY, edge_relativity);
+ g_settings_set_boolean (settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY, FALSE);
+ }
+
mate_panel_applet_queue_applet_to_load (id,
object_type,
toplevel_id,
position,
- right_stick,
+ edge_relativity,
locked);
g_free (toplevel_id);
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-profile.h mate-panel-1.26.1_patched-center-stick/mate-panel/panel-profile.h
--- mate-panel-1.26.1_original/mate-panel/panel-profile.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-profile.h 2022-01-17 12:06:18.216094173 -0500
@@ -52,23 +52,23 @@ gboolean panel_profile_get_enable_pro
gboolean panel_profile_get_enable_autocompletion (void);
-void panel_profile_add_to_list (PanelGSettingsKeyType type,
- const char *id);
-void panel_profile_remove_from_list (PanelGSettingsKeyType type,
- const char *id);
+void panel_profile_add_to_list (PanelGSettingsKeyType type,
+ const char *id);
+void panel_profile_remove_from_list (PanelGSettingsKeyType type,
+ const char *id);
gboolean panel_profile_id_lists_are_writable (void);
-void panel_profile_create_toplevel (GdkScreen *screen);
-PanelToplevel *panel_profile_load_toplevel (const char *toplevel_id);
-void panel_profile_delete_toplevel (PanelToplevel *toplevel);
-char *panel_profile_prepare_object (PanelObjectType object_type,
- PanelToplevel *toplevel,
- int position,
- gboolean right_stick);
-char *panel_profile_prepare_object_with_id (PanelObjectType object_type,
- const char *toplevel_id,
- int position,
- gboolean right_stick);
-void panel_profile_delete_object (AppletInfo *applet_info);
+void panel_profile_create_toplevel (GdkScreen *screen);
+PanelToplevel *panel_profile_load_toplevel (const char *toplevel_id);
+void panel_profile_delete_toplevel (PanelToplevel *toplevel);
+char *panel_profile_prepare_object (PanelObjectType object_type,
+ PanelToplevel *toplevel,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity);
+char *panel_profile_prepare_object_with_id (PanelObjectType object_type,
+ const char *toplevel_id,
+ int position,
+ PanelObjectEdgeRelativity edge_relativity);
+void panel_profile_delete_object (AppletInfo *applet_info);
gboolean panel_profile_key_is_writable (PanelToplevel *toplevel,
gchar *key);
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-schemas.h mate-panel-1.26.1_patched-center-stick/mate-panel/panel-schemas.h
--- mate-panel-1.26.1_original/mate-panel/panel-schemas.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-schemas.h 2022-01-17 11:51:48.808058408 -0500
@@ -47,6 +47,7 @@
#define PANEL_OBJECT_TOPLEVEL_ID_KEY "toplevel-id"
#define PANEL_OBJECT_POSITION_KEY "position"
#define PANEL_OBJECT_PANEL_RIGHT_STICK_KEY "panel-right-stick"
+#define PANEL_OBJECT_RELATIVE_TO_EDGE_KEY "relative-to-edge"
#define PANEL_OBJECT_LOCKED_KEY "locked"
#define PANEL_OBJECT_APPLET_IID_KEY "applet-iid"
#define PANEL_OBJECT_ATTACHED_TOPLEVEL_ID_KEY "attached-toplevel-id"
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-toplevel.c mate-panel-1.26.1_patched-center-stick/mate-panel/panel-toplevel.c
--- mate-panel-1.26.1_original/mate-panel/panel-toplevel.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-toplevel.c 2022-01-22 11:48:35.944036268 -0500
@@ -2897,7 +2897,7 @@ panel_toplevel_move_resize_window (Panel
GtkWidget *widget;
GList *list;
- gboolean stick;
+ PanelObjectEdgeRelativity edge_relativity;
widget = GTK_WIDGET (toplevel);
@@ -2929,15 +2929,23 @@ panel_toplevel_move_resize_window (Panel
AppletInfo *info;
info = mate_panel_applet_get_by_id (id);
- stick = g_settings_get_boolean (info->settings, PANEL_OBJECT_PANEL_RIGHT_STICK_KEY);
+ edge_relativity = g_settings_get_enum (info->settings, PANEL_OBJECT_RELATIVE_TO_EDGE_KEY);
- if (stick) {
+ if (edge_relativity == PANEL_EDGE_CENTER ||
+ edge_relativity == PANEL_EDGE_END) {
int position = g_settings_get_int (info->settings, PANEL_OBJECT_POSITION_KEY);
- if (toplevel->priv->orientation & PANEL_HORIZONTAL_MASK) {
- ad->pos = toplevel->priv->geometry.width - position;
- } else {
- ad->pos = toplevel->priv->geometry.height - position;
- }
+ int size = mate_panel_applet_get_size (info);
+ int toplevel_size;
+
+ if (toplevel->priv->orientation & PANEL_HORIZONTAL_MASK)
+ toplevel_size = toplevel->priv->geometry.width;
+ else
+ toplevel_size = toplevel->priv->geometry.height;
+
+ if (edge_relativity == PANEL_EDGE_CENTER)
+ ad->pos = toplevel_size/2 - size/2 + position;
+ else if (edge_relativity == PANEL_EDGE_END)
+ ad->pos = toplevel_size - size - position;
}
}
}
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-widget.c mate-panel-1.26.1_patched-center-stick/mate-panel/panel-widget.c
--- mate-panel-1.26.1_original/mate-panel/panel-widget.c 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-widget.c 2022-04-07 19:40:11.412189619 -0400
@@ -30,8 +30,11 @@
#include "panel-globals.h"
#include "panel-profile.h"
#include "panel-lockdown.h"
+#include "panel-schemas.h"
-#define MOVE_INCREMENT 1
+#define MOVE_INCREMENT 1
+/* The following was originally from panel-toplevel.c */
+#define SNAP_TOLERANCE_FACTOR 6
typedef enum {
PANEL_SWITCH_MOVE = 0,
@@ -624,36 +627,92 @@ get_applet_list_pos (PanelWidget *panel,
return NULL;
}
-/*tells us if an applet is "stuck" on the right side*/
-int
-panel_widget_is_applet_stuck (PanelWidget *panel_widget,
- GtkWidget *widget)
-{
- AppletData *applet;
+/*
+ * This function determines whether the given panel applet should be positioned
+ * relative to the center or end of the panel; that is, whether the applet
+ * is part of a contiguous group of other applets, one of which touches the
+ * center or end of the panel.
+ */
+PanelObjectEdgeRelativity
+panel_widget_determine_applet_edge_relativity (PanelWidget *panel_widget,
+ GtkWidget *widget)
+{
+ AppletData *applet_in_question;
+ gboolean applet_is_centered = FALSE;
+
+ g_return_val_if_fail (PANEL_IS_WIDGET (panel_widget), PANEL_EDGE_START);
+ g_return_val_if_fail (GTK_IS_WIDGET (widget), PANEL_EDGE_START);
+
+ applet_in_question = g_object_get_data (G_OBJECT (widget), MATE_PANEL_APPLET_DATA);
+ if (applet_in_question) {
+ GList *applet_list, *l;
+ AppletData *applet;
+ int start_pos, end_pos;
+
+ applet_list = g_list_find (panel_widget->applet_list, applet_in_question);
+ start_pos = applet_in_question->pos + applet_in_question->cells;
+ end_pos = applet_in_question->pos;
+
+ /*
+ * Start by moving towards the start of the panel, checking
+ * whether any applets lie on the panel's center.
+ */
+ for (l = applet_list; l; l = l->prev)
+ {
+ applet = l->data;
- g_return_val_if_fail (PANEL_IS_WIDGET (panel_widget), FALSE);
- g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
+ if (applet->pos + applet->cells < end_pos)
+ break;
- applet = g_object_get_data (G_OBJECT (widget), MATE_PANEL_APPLET_DATA);
- if (applet) {
- GList *applet_list, *l;
- int end_pos = -1;
+ if (applet->pos <= panel_widget->size/2 &&
+ applet->pos + applet->cells > panel_widget->size/2)
+ applet_is_centered = TRUE;
+
+ end_pos -= applet->cells;
+ if (end_pos <= 0)
+ /*
+ * If the applet in question is part of a line
+ * of contiguous applets, the first of which
+ * touches the start of the panel, then don't
+ * center this applet under any circumstances.
+ */
+ return PANEL_EDGE_START;
+ }
- applet_list = g_list_find (panel_widget->applet_list, applet);
+ if (applet_is_centered)
+ return PANEL_EDGE_CENTER;
- for (l = applet_list; l; l = l->next) {
+ /*
+ * Now move towards the panel's end, looking for applets that
+ * cross the center of the panel.
+ */
+ for (l = applet_list; l; l = l->next)
+ {
applet = l->data;
- if (end_pos != -1 && applet->pos != end_pos)
+ if (applet->pos > start_pos)
break;
- end_pos = applet->pos + applet->cells;
- if (end_pos >= panel_widget->size)
- return TRUE;
+ if (applet->pos <= panel_widget->size/2 &&
+ applet->pos + applet->cells > panel_widget->size/2)
+ applet_is_centered = TRUE;
+
+ start_pos += applet->cells;
+ if (start_pos >= panel_widget->size)
+ /*
+ * If the applet in question is part of a line
+ * of contiguous applets, the last of which
+ * touches the end of the panel, then the
+ * applet is actually end-relative.
+ */
+ return PANEL_EDGE_END;
}
}
- return FALSE;
+ if (applet_is_centered)
+ return PANEL_EDGE_CENTER;
+ else
+ return PANEL_EDGE_START;
}
static int
@@ -1153,47 +1212,6 @@ panel_widget_push_move (PanelWidget *pan
}
}
-
-/*this is a special function and may fail if called improperly, it works
-only under special circumstance when we know there is nothing from
-old_size to panel->size*/
-static void
-panel_widget_right_stick(PanelWidget *panel,int old_size)
-{
- int i,pos;
- GList *list,*prev;
- AppletData *ad;
-
- g_return_if_fail(PANEL_IS_WIDGET(panel));
- g_return_if_fail(old_size>=0);
-
- if(old_size>=panel->size ||
- panel->packed)
- return;
-
- list = get_applet_list_pos(panel,old_size-1);
-
- if(!list)
- return;
-
- pos = panel->size-1;
-
- ad = list->data;
- do {
- i = ad->pos;
- ad->pos = ad->constrained = pos--;
- ad->cells = 1;
- prev = list;
- list = g_list_previous(list);
- if(!list)
- break;
- ad = list->data;
- } while(ad->pos + ad->cells == i);
-
- for (list = prev; list; list = list->next)
- emit_applet_moved (panel, list->data);
-}
-
static void
panel_widget_get_preferred_size(GtkWidget *widget,
GtkRequisition *minimum_size,
@@ -1367,7 +1385,6 @@ panel_widget_size_allocate(GtkWidget *wi
PanelWidget *panel;
GList *list;
int i;
- int old_size;
gboolean ltr;
g_return_if_fail(PANEL_IS_WIDGET(widget));
@@ -1375,7 +1392,6 @@ panel_widget_size_allocate(GtkWidget *wi
panel = PANEL_WIDGET(widget);
- old_size = panel->size;
ltr = gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR;
gtk_widget_set_allocation (widget, allocation);
@@ -1390,8 +1406,6 @@ panel_widget_size_allocate(GtkWidget *wi
panel->size = allocation->width;
else
panel->size = allocation->height;
- if(old_sizesize)
- panel_widget_right_stick(panel,old_size);
if (panel->packed) {
/* we're assuming the order is the same as the one that was
@@ -1448,13 +1462,29 @@ panel_widget_size_allocate(GtkWidget *wi
} else { /*not packed*/
- /* First make sure there's enough room on the left */
+ /*
+ * First, recalculate the ideal position for each applet on the
+ * panel, since the panel changed size, and the position of
+ * end-relative and center-relative applets depends on the
+ * exact size of the panel.
+ *
+ * However, if some applet uses a large amount of space on the
+ * panel, it's possible that the ideal applet positions cannot
+ * be attained, unless of course panel applets were to overlap.
+ * Since we don't want any panel applets to overlap, shift any
+ * following applets further over to the right as much as
+ * necessary.
+ */
+
i = 0;
- for (list = panel->applet_list;
- list != NULL;
- list = g_list_next (list)) {
+ for (list = panel->applet_list; list; list = list->next)
+ {
AppletData *ad = list->data;
GtkRequisition chreq;
+ const char *id;
+ AppletInfo *info;
+ int position = ad->pos;
+ PanelObjectEdgeRelativity edge_relativity = PANEL_EDGE_START;
gtk_widget_get_preferred_size (ad->applet, &chreq, NULL);
@@ -1470,10 +1500,69 @@ panel_widget_size_allocate(GtkWidget *wi
ad->min_cells = ad->size_hints [ad->size_hints_len - 1];
}
+ id = mate_panel_applet_get_id_by_widget (ad->applet);
+ if (id)
+ {
+ info = mate_panel_applet_get_by_id (id);
+ position = g_settings_get_int (info->settings,
+ PANEL_OBJECT_POSITION_KEY);
+ edge_relativity = g_settings_get_enum (info->settings,
+ PANEL_OBJECT_RELATIVE_TO_EDGE_KEY);
+ }
+
+ /*
+ * Do not attempt to re-position the applet if it is
+ * currently being dragged or otherwise moved by the
+ * user; otherwise, we'll immediately undo the user's
+ * last move and thus thwart all the user's attempts
+ * to move the applet!
+ */
+ if (ad != panel->currently_dragged_applet)
+ {
+ if (edge_relativity == PANEL_EDGE_CENTER)
+ ad->pos = panel->size/2 - ad->cells/2 + position;
+ else if (edge_relativity == PANEL_EDGE_END)
+ ad->pos = panel->size - ad->cells - position;
+ else
+ ad->pos = position;
+ }
+
+ /*
+ * Now if the previous applet uses too much room on the
+ * panel to ideally fit this applet, move this applet
+ * further over to the right to compensate.
+ *
+ * Centered applets are a somewhat different story.
+ * If the current applet is centered, and the previous
+ * applet is also centered and has a negative relative
+ * position (so the previous applet is "left" of
+ * center), move the *previous* applet over to the
+ * *left* to compensate. This way, applets at dead
+ * center will remain at or near dead center.
+ */
ad->constrained = ad->pos;
if (ad->constrained < i)
- ad->constrained = i;
+ {
+ AppletData *pad = NULL;
+ PanelObjectEdgeRelativity previous_edge_relativity;
+
+ previous_edge_relativity = PANEL_EDGE_START;
+
+ if (list->prev)
+ {
+ pad = list->prev->data;
+ previous_edge_relativity = panel_widget_determine_applet_edge_relativity (panel, pad->applet);
+ }
+
+ if (edge_relativity == PANEL_EDGE_CENTER &&
+ pad &&
+ previous_edge_relativity == PANEL_EDGE_CENTER &&
+ pad->pos + pad->cells/2 < panel->size/2)
+ pad->constrained = ad->pos - pad->cells;
+ else
+ ad->constrained = i;
+ }
i = ad->constrained + ad->cells;
}
@@ -1766,12 +1855,20 @@ panel_widget_applet_drag_start_no_grab (
static void
panel_widget_applet_drag_end_no_grab (PanelWidget *panel)
{
+ AppletInfo *info;
+
g_return_if_fail (panel != NULL);
g_return_if_fail (PANEL_IS_WIDGET (panel));
#ifdef PANEL_WIDGET_DEBUG
g_message("Ending drag\n");
#endif
+
+ /* Immediately save the new position of the applet. */
+ info = g_object_get_data (G_OBJECT (panel->currently_dragged_applet->applet), "applet_info");
+ if (info)
+ mate_panel_applet_save_position (info, info->id, TRUE);
+
panel->currently_dragged_applet = NULL;
mate_panel_applet_in_drag = FALSE;
@@ -2037,6 +2134,9 @@ panel_widget_applet_move_to_cursor (Pane
GSList *forb;
GdkModifierType mods;
AppletData *ad;
+ GtkSettings *settings;
+ int drag_threshold;
+ int absolute_moveby;
g_return_if_fail(PANEL_IS_WIDGET(panel));
@@ -2105,16 +2205,49 @@ panel_widget_applet_move_to_cursor (Pane
movement = PANEL_FREE_MOVE;
}
+ moveby = panel_widget_get_moveby (panel, pos, ad->drag_off);
+
+ /*
+ * If the applet is currently positioned at the dead center of the
+ * panel, or if the user moved the mouse across the center of the
+ * panel (but not farther from the center than the drag-and-drop
+ * threshold times a specific constant), make the applet "stick" to
+ * the cener of the panel until the user tries to drag the applet far
+ * away from the center again. This way, the user can move an applet
+ * to the center of the panel without needing superhuman muscle
+ * control to get the applet perfectly centered.
+ */
+ settings = gtk_widget_get_settings (GTK_WIDGET (panel));
+ g_object_get (G_OBJECT (settings),
+ "gtk-dnd-drag-threshold", &drag_threshold,
+ NULL);
+
+ if ((moveby < 0 && pos > panel->size/2 - ad->cells/2 &&
+ pos+moveby <= panel->size/2 - ad->cells/2 &&
+ pos+moveby >= panel->size/2 - ad->cells/2 - drag_threshold*SNAP_TOLERANCE_FACTOR) ||
+ (moveby > 0 && pos < panel->size/2 - ad->cells/2 &&
+ pos+moveby >= panel->size/2 - ad->cells/2 &&
+ pos+moveby <= panel->size/2 - ad->cells/2 + drag_threshold*SNAP_TOLERANCE_FACTOR))
+ moveby = (panel->size/2 - ad->cells/2) - pos;
+ else if (pos == panel->size/2 - ad->cells/2)
+ {
+ if (moveby < 0)
+ absolute_moveby = -moveby;
+ else
+ absolute_moveby = moveby;
+
+ if (absolute_moveby < drag_threshold*SNAP_TOLERANCE_FACTOR)
+ return;
+ }
+
switch (movement) {
case PANEL_SWITCH_MOVE:
- moveby = panel_widget_get_moveby (panel, pos, ad->drag_off);
panel_widget_switch_move (panel, ad, moveby);
break;
case PANEL_FREE_MOVE:
panel_widget_nice_move (panel, ad, panel_widget_get_cursorloc (panel));
break;
case PANEL_PUSH_MOVE:
- moveby = panel_widget_get_moveby (panel, pos, ad->drag_off);
panel_widget_push_move (panel, ad, moveby);
break;
}
diff -uprN mate-panel-1.26.1_original/mate-panel/panel-widget.h mate-panel-1.26.1_patched-center-stick/mate-panel/panel-widget.h
--- mate-panel-1.26.1_original/mate-panel/panel-widget.h 2021-09-25 14:32:30.000000000 -0400
+++ mate-panel-1.26.1_patched-center-stick/mate-panel/panel-widget.h 2022-04-07 18:58:02.212085574 -0400
@@ -193,9 +193,9 @@ void panel_widget_draw_icon (PanelWidg
ButtonWidget *applet);
-/*tells us if an applet is "stuck" on the right side*/
-int panel_widget_is_applet_stuck (PanelWidget *panel,
- GtkWidget *applet);
+/*Tells us to which panel edge (start, center, end) the applet is relative*/
+PanelObjectEdgeRelativity panel_widget_determine_applet_edge_relativity (PanelWidget *panel,
+ GtkWidget *applet);
/*get pos of the cursor location in panel coordinates*/
int panel_widget_get_cursorloc (PanelWidget *panel);