@@ -1,3 +1,7 @@ 
+2017-06-20 master
+- Enhancements:
+  - Taskbar: new config option taskbar_hide_different_desktop
+
 2017-06-11 0.14.6
 - Fixes:
   - Take into account border width when computing text height

@@ -370,6 +370,8 @@ * `taskbar_hide_inactive_tasks = boolean (0 or 1)` :  If enabled, the taskbar shows only the active task. *(since 0.12)*
 
   * `taskbar_hide_different_monitor = boolean (0 or 1)` :  If enabled, the taskbar shows only the tasks from the current monitor. Useful when running different tint2 instances on different monitors, each one having its own config. *(since 0.12)*
 
+  * `taskbar_hide_different_desktop = boolean (0 or 1)` :  If enabled, the taskbar shows only the tasks from the current desktop. Useful to make multi-desktop taskbars more compact, but still allow desktop switching with mouse click. *(since 0.15)*
+
   * `taskbar_always_show_all_desktop_tasks = boolean (0 or 1)` :  Has effect only if `taskbar_mode = multi_desktop`. If enabled, tasks that appear on all desktops are shown on all taskbars. Otherwise, they are shown only on the taskbar of the current desktop. *(since 0.12.4)*
 
   * `taskbar_sort_order = none/title/center` : Specifies the sort order of the tasks on the taskbar.  *(since 0.12)*

@@ -960,6 +960,8 @@ } else if (strcmp(key, "taskbar_hide_inactive_tasks") == 0) {
         hide_inactive_tasks = atoi(value);
     } else if (strcmp(key, "taskbar_hide_different_monitor") == 0) {
         hide_task_diff_monitor = atoi(value);
+    } else if (strcmp(key, "taskbar_hide_different_desktop") == 0) {
+        hide_task_diff_desktop = atoi(value);
     } else if (strcmp(key, "taskbar_hide_if_empty") == 0) {
         hide_taskbar_if_empty = atoi(value);
     } else if (strcmp(key, "taskbar_always_show_all_desktop_tasks") == 0) {

@@ -624,7 +624,7 @@ }
         }
     }
 
-    if (task->current_state != state || hide_task_diff_monitor) {
+    if (task->current_state != state || hide_task_diff_monitor || hide_task_diff_desktop) {
         GPtrArray *task_buttons = get_task_buttons(task->win);
         if (task_buttons) {
             for (int i = 0; i < task_buttons->len; ++i) {
@@ -647,6 +647,10 @@ // Show only the active task
                     if (state != TASK_ACTIVE) {
                         hide = TRUE;
                     }
+                }
+                if (hide_task_diff_desktop) {
+                    if (taskbar->desktop != server.desktop)
+                        hide = TRUE;
                 }
                 if (get_window_monitor(task->win) != ((Panel *)task->area.panel)->monitor &&
                     (hide_task_diff_monitor || num_panels > 1)) {

@@ -39,6 +39,7 @@ Task *active_task;
 Task *task_drag;
 gboolean taskbar_enabled;
 gboolean taskbar_distribute_size;
+gboolean hide_task_diff_desktop;
 gboolean hide_inactive_tasks;
 gboolean hide_task_diff_monitor;
 gboolean hide_taskbar_if_empty;
@@ -74,6 +75,7 @@ urgent_timeout = NULL;
     urgent_list = NULL;
     taskbar_enabled = FALSE;
     taskbar_distribute_size = FALSE;
+    hide_task_diff_desktop = FALSE;
     hide_inactive_tasks = FALSE;
     hide_task_diff_monitor = FALSE;
     hide_taskbar_if_empty = FALSE;
@@ -534,6 +536,15 @@ if (taskbarname_enabled)
                 l = l->next;
             for (; l; l = l->next)
                 schedule_redraw((Area *)l->data);
+        }
+        if (taskbar_mode == MULTI_DESKTOP && hide_task_diff_desktop) {
+            GList *l = taskbar->area.children;
+            if (taskbarname_enabled)
+                l = l->next;
+            for (; l; l = l->next) {
+                Task *task = (Task *)l->data;
+                set_task_state(task, task->current_state);
+            }
         }
     }
     schedule_panel_redraw();

@@ -49,6 +49,7 @@ } GlobalTaskbar;
 
 extern gboolean taskbar_enabled;
 extern gboolean taskbar_distribute_size;
+extern gboolean hide_task_diff_desktop;
 extern gboolean hide_inactive_tasks;
 extern gboolean hide_task_diff_monitor;
 extern gboolean hide_taskbar_if_empty;

@@ -917,6 +917,8 @@ task_drag->area.parent = &event_taskbar->area;
         task_drag->desktop = event_taskbar->desktop;
 
         change_window_desktop(task_drag->win, event_taskbar->desktop);
+        if (hide_task_diff_desktop)
+            change_desktop(event_taskbar->desktop);
 
         if (taskbar_sort_method != TASKBAR_NOSORT) {
             sort_tasks(event_taskbar);

@@ -44,7 +44,7 @@ GtkWidget *notebook;
 
 // taskbar
 GtkWidget *taskbar_show_desktop, *taskbar_show_name, *taskbar_padding_x, *taskbar_padding_y, *taskbar_spacing;
-GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor;
+GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor, *taskbar_hide_diff_desktop;
 GtkWidget *taskbar_name_padding_x, *taskbar_name_padding_y, *taskbar_name_inactive_color, *taskbar_name_active_color;
 GtkWidget *taskbar_name_font, *taskbar_name_font_set;
 GtkWidget *taskbar_active_background, *taskbar_inactive_background;
@@ -2650,6 +2650,19 @@ taskbar_hide_diff_monitor,
                          _("If enabled, tasks that are not on the same monitor as the panel will not be displayed. "
                            "This behavior is enabled automatically if the panel monitor is set to 'All'."),
                          NULL);
+
+    col = 2;
+    row++;
+    label = gtk_label_new(_("Hide tasks from different desktops"));
+    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
+    gtk_widget_show(label);
+    gtk_table_attach(GTK_TABLE(table), label, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
+
+    taskbar_hide_diff_desktop = gtk_check_button_new();
+    gtk_widget_show(taskbar_hide_diff_desktop);
+    gtk_table_attach(GTK_TABLE(table), taskbar_hide_diff_desktop, col, col + 1, row, row + 1, GTK_FILL, 0, 0, 0);
+    col++;
 
     col = 2;
     row++;

@@ -49,7 +49,7 @@ #define POS_BRH 11
 
 // taskbar
 extern GtkWidget *taskbar_show_desktop, *taskbar_show_name, *taskbar_padding_x, *taskbar_padding_y, *taskbar_spacing;
-extern GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor;
+extern GtkWidget *taskbar_hide_inactive_tasks, *taskbar_hide_diff_monitor, *taskbar_hide_diff_desktop;
 extern GtkWidget *taskbar_name_padding_x, *taskbar_name_padding_y, *taskbar_name_inactive_color,
     *taskbar_name_active_color;
 extern GtkWidget *taskbar_name_font, *taskbar_name_font_set;

@@ -402,6 +402,9 @@ fprintf(fp,
             "taskbar_hide_different_monitor = %d\n",
             gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(taskbar_hide_diff_monitor)) ? 1 : 0);
     fprintf(fp,
+            "taskbar_hide_different_desktop = %d\n",
+            gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(taskbar_hide_diff_desktop)) ? 1 : 0);
+    fprintf(fp,
             "taskbar_always_show_all_desktop_tasks = %d\n",
             gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(taskbar_always_show_all_desktop_tasks)) ? 1 : 0);
     fprintf(fp,
@@ -1551,6 +1554,8 @@ } else if (strcmp(key, "taskbar_hide_inactive_tasks") == 0) {
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(taskbar_hide_inactive_tasks), atoi(value));
     } else if (strcmp(key, "taskbar_hide_different_monitor") == 0) {
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(taskbar_hide_diff_monitor), atoi(value));
+    } else if (strcmp(key, "taskbar_hide_different_desktop") == 0) {
+        gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(taskbar_hide_diff_desktop), atoi(value));
     } else if (strcmp(key, "taskbar_always_show_all_desktop_tasks") == 0) {
         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(taskbar_always_show_all_desktop_tasks), atoi(value));
     } else if (strcmp(key, "taskbar_name_padding") == 0) {