window: Add configurable mouse actions for titlebar

Adds support for configurable mouse actions on window titlebars,
including middle-click and scroll wheel events.

New actions added:
- close: Close the window
- raise: Raise window to top
- toggle_stick: Toggle sticky state (all workspaces)
- toggle_above: Toggle always-on-top state

Fixes #425
Fixes #787

Note: requries matching mate-control-center changes to work properly

1 files changed, 30 insertions, 0 deletions

diff --git a/src/core/prefs.c b/src/core/prefs.c
index 032bba8f..844b1a06 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -109,6 +109,8 @@ static MetaWrapStyle wrap_style = META_WRAP_NONE;
 static MetaActionTitlebar action_double_click_titlebar = META_ACTION_TITLEBAR_TOGGLE_MAXIMIZE;
 static MetaActionTitlebar action_middle_click_titlebar = META_ACTION_TITLEBAR_LOWER;
 static MetaActionTitlebar action_right_click_titlebar = META_ACTION_TITLEBAR_MENU;
+static MetaActionTitlebar action_scroll_up_titlebar = META_ACTION_TITLEBAR_NONE;
+static MetaActionTitlebar action_scroll_down_titlebar = META_ACTION_TITLEBAR_NONE;
 static gboolean application_based = FALSE;
 static gboolean disable_workarounds = FALSE;
 static gboolean auto_raise = FALSE;
@@ -336,6 +338,16 @@ static MetaEnumPreference preferences_enum[] =
       META_PREF_ACTION_RIGHT_CLICK_TITLEBAR,
       (gint *) &action_right_click_titlebar,
     },
+    { "action-scroll-up-titlebar",
+      KEY_GENERAL_SCHEMA,
+      META_PREF_ACTION_SCROLL_UP_TITLEBAR,
+      (gint *) &action_scroll_up_titlebar,
+    },
+    { "action-scroll-down-titlebar",
+      KEY_GENERAL_SCHEMA,
+      META_PREF_ACTION_SCROLL_DOWN_TITLEBAR,
+      (gint *) &action_scroll_down_titlebar,
+    },
     { "placement-mode",
       KEY_GENERAL_SCHEMA,
       META_PREF_PLACEMENT_MODE,
@@ -1645,6 +1657,12 @@ meta_preference_to_string (MetaPreference pref)
     case META_PREF_ACTION_RIGHT_CLICK_TITLEBAR:
       return "ACTION_RIGHT_CLICK_TITLEBAR";
 
+    case META_PREF_ACTION_SCROLL_UP_TITLEBAR:
+      return "ACTION_SCROLL_UP_TITLEBAR";
+
+    case META_PREF_ACTION_SCROLL_DOWN_TITLEBAR:
+      return "ACTION_SCROLL_DOWN_TITLEBAR";
+
     case META_PREF_AUTO_RAISE:
       return "AUTO_RAISE";
 
@@ -2299,6 +2317,18 @@ meta_prefs_get_action_right_click_titlebar (void)
   return action_right_click_titlebar;
 }
 
+MetaActionTitlebar
+meta_prefs_get_action_scroll_up_titlebar (void)
+{
+  return action_scroll_up_titlebar;
+}
+
+MetaActionTitlebar
+meta_prefs_get_action_scroll_down_titlebar (void)
+{
+  return action_scroll_down_titlebar;
+}
+
 gboolean
 meta_prefs_get_auto_raise (void)
 {