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[metacity] add support for app-menu button in theme

commit 6a2cc159454621bbe49d3604283aeee2ea911fe5
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Tue Oct 7 05:37:23 2014 +0300

    add support for app-menu button in theme
    
    Add app-menu button support in themes. This is done only to support
    metacity theme format 3.5 version. Metacity will not show this
    button!
    
    Based on mutter commit:
    https://git.gnome.org/browse/mutter/commit/?id=c2ea650b3c484312c14f69b8b245ab117ef7c6e1

 src/core/prefs.c      |    2 ++
 src/include/common.h  |   33 ++++++++++++++++++---------------
 src/ui/frames.c       |   25 +++++++++++++++++++++++++
 src/ui/frames.h       |    1 +
 src/ui/theme-parser.c |    2 +-
 src/ui/theme.c        |   29 +++++++++++++++++++++++++++--
 src/ui/theme.h        |    2 ++
 7 files changed, 76 insertions(+), 18 deletions(-)
---
diff --git a/src/core/prefs.c b/src/core/prefs.c
index 7065c27..3820ba9 100644
--- a/src/core/prefs.c
+++ b/src/core/prefs.c
@@ -1084,6 +1084,8 @@ button_function_from_string (const char *str)
 {
   if (strcmp (str, "menu") == 0)
     return META_BUTTON_FUNCTION_MENU;
+  else if (strcmp (str, "appmenu") == 0)
+    return META_BUTTON_FUNCTION_APPMENU;
   else if (strcmp (str, "minimize") == 0)
     return META_BUTTON_FUNCTION_MINIMIZE;
   else if (strcmp (str, "maximize") == 0)
diff --git a/src/include/common.h b/src/include/common.h
index 78de84a..fdd1df1 100644
--- a/src/include/common.h
+++ b/src/include/common.h
@@ -37,21 +37,22 @@ typedef enum
 {
   META_FRAME_ALLOWS_DELETE            = 1 << 0,
   META_FRAME_ALLOWS_MENU              = 1 << 1,
-  META_FRAME_ALLOWS_MINIMIZE          = 1 << 2,
-  META_FRAME_ALLOWS_MAXIMIZE          = 1 << 3,
-  META_FRAME_ALLOWS_VERTICAL_RESIZE   = 1 << 4,
-  META_FRAME_ALLOWS_HORIZONTAL_RESIZE = 1 << 5,
-  META_FRAME_HAS_FOCUS                = 1 << 6,
-  META_FRAME_SHADED                   = 1 << 7,
-  META_FRAME_STUCK                    = 1 << 8,
-  META_FRAME_MAXIMIZED                = 1 << 9,
-  META_FRAME_ALLOWS_SHADE             = 1 << 10,
-  META_FRAME_ALLOWS_MOVE              = 1 << 11,
-  META_FRAME_FULLSCREEN               = 1 << 12,
-  META_FRAME_IS_FLASHING              = 1 << 13,
-  META_FRAME_ABOVE                    = 1 << 14,
-  META_FRAME_TILED_LEFT               = 1 << 15,
-  META_FRAME_TILED_RIGHT              = 1 << 16
+  META_FRAME_ALLOWS_APPMENU           = 1 << 2,
+  META_FRAME_ALLOWS_MINIMIZE          = 1 << 3,
+  META_FRAME_ALLOWS_MAXIMIZE          = 1 << 4,
+  META_FRAME_ALLOWS_VERTICAL_RESIZE   = 1 << 5,
+  META_FRAME_ALLOWS_HORIZONTAL_RESIZE = 1 << 6,
+  META_FRAME_HAS_FOCUS                = 1 << 7,
+  META_FRAME_SHADED                   = 1 << 8,
+  META_FRAME_STUCK                    = 1 << 9,
+  META_FRAME_MAXIMIZED                = 1 << 10,
+  META_FRAME_ALLOWS_SHADE             = 1 << 11,
+  META_FRAME_ALLOWS_MOVE              = 1 << 12,
+  META_FRAME_FULLSCREEN               = 1 << 13,
+  META_FRAME_IS_FLASHING              = 1 << 14,
+  META_FRAME_ABOVE                    = 1 << 15,
+  META_FRAME_TILED_LEFT               = 1 << 16,
+  META_FRAME_TILED_RIGHT              = 1 << 17
 } MetaFrameFlags;
 
 typedef enum
@@ -138,6 +139,7 @@ typedef enum
   META_GRAB_OP_CLICKING_UNMAXIMIZE,
   META_GRAB_OP_CLICKING_DELETE,
   META_GRAB_OP_CLICKING_MENU,
+  META_GRAB_OP_CLICKING_APPMENU,
   META_GRAB_OP_CLICKING_SHADE,
   META_GRAB_OP_CLICKING_UNSHADE,
   META_GRAB_OP_CLICKING_ABOVE,
@@ -233,6 +235,7 @@ typedef enum
 typedef enum
 {
   META_BUTTON_FUNCTION_MENU,
+  META_BUTTON_FUNCTION_APPMENU,
   META_BUTTON_FUNCTION_MINIMIZE,
   META_BUTTON_FUNCTION_MAXIMIZE,
   META_BUTTON_FUNCTION_CLOSE,
diff --git a/src/ui/frames.c b/src/ui/frames.c
index e78ee6e..b068754 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -1095,6 +1095,9 @@ show_tip_now (MetaFrames *frames)
     case META_FRAME_CONTROL_MENU:
       tiptext = _("Window Menu");
       break;
+    case META_FRAME_CONTROL_APPMENU:
+      tiptext = _("Window App Menu");
+      break;
     case META_FRAME_CONTROL_MINIMIZE:
       tiptext = _("Minimize Window");
       break;
@@ -1442,6 +1445,9 @@ meta_frames_button_press_event (GtkWidget      *widget,
         case META_FRAME_CONTROL_MENU:
           op = META_GRAB_OP_CLICKING_MENU;
           break;
+        case META_FRAME_CONTROL_APPMENU:
+          op = META_GRAB_OP_CLICKING_APPMENU;
+          break;
         case META_FRAME_CONTROL_SHADE:
           op = META_GRAB_OP_CLICKING_SHADE;
           break;
@@ -1690,6 +1696,7 @@ meta_frames_button_release_event    (GtkWidget           *widget,
           break;
 
         case META_GRAB_OP_CLICKING_MENU:
+        case META_GRAB_OP_CLICKING_APPMENU:
           meta_core_end_grab_op (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), event->time);
           break;
 
@@ -1776,6 +1783,8 @@ meta_frames_update_prelit_control (MetaFrames      *frames,
       break;
     case META_FRAME_CONTROL_MENU:
       break;
+    case META_FRAME_CONTROL_APPMENU:
+      break;
     case META_FRAME_CONTROL_MINIMIZE:
       break;
     case META_FRAME_CONTROL_MAXIMIZE:
@@ -1828,6 +1837,7 @@ meta_frames_update_prelit_control (MetaFrames      *frames,
   switch (control)
     {
     case META_FRAME_CONTROL_MENU:
+    case META_FRAME_CONTROL_APPMENU:
     case META_FRAME_CONTROL_MINIMIZE:
     case META_FRAME_CONTROL_MAXIMIZE:
     case META_FRAME_CONTROL_DELETE:
@@ -1881,6 +1891,7 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
   switch (grab_op)
     {
     case META_GRAB_OP_CLICKING_MENU:
+    case META_GRAB_OP_CLICKING_APPMENU:
     case META_GRAB_OP_CLICKING_DELETE:
     case META_GRAB_OP_CLICKING_MINIMIZE:
     case META_GRAB_OP_CLICKING_MAXIMIZE:
@@ -1904,6 +1915,8 @@ meta_frames_motion_notify_event     (GtkWidget           *widget,
         control = get_control (frames, frame, x, y);
         if (! ((control == META_FRAME_CONTROL_MENU &&
                 grab_op == META_GRAB_OP_CLICKING_MENU) ||
+               (control == META_FRAME_CONTROL_APPMENU &&
+                grab_op == META_GRAB_OP_CLICKING_APPMENU) ||
                (control == META_FRAME_CONTROL_DELETE &&
                 grab_op == META_GRAB_OP_CLICKING_DELETE) ||
                (control == META_FRAME_CONTROL_MINIMIZE &&
@@ -2321,6 +2334,12 @@ meta_frames_paint (MetaFrames   *frames,
       else
         button_states[META_BUTTON_TYPE_MENU] = META_BUTTON_STATE_PRELIGHT;
       break;
+    case META_FRAME_CONTROL_APPMENU:
+      if (grab_op == META_GRAB_OP_CLICKING_MENU)
+        button_states[META_BUTTON_TYPE_APPMENU] = META_BUTTON_STATE_PRESSED;
+      else
+        button_states[META_BUTTON_TYPE_APPMENU] = META_BUTTON_STATE_PRELIGHT;
+      break;
     case META_FRAME_CONTROL_MINIMIZE:
       if (grab_op == META_GRAB_OP_CLICKING_MINIMIZE)
         button_states[META_BUTTON_TYPE_MINIMIZE] = META_BUTTON_STATE_PRESSED;
@@ -2515,6 +2534,9 @@ control_rect (MetaFrameControl control,
     case META_FRAME_CONTROL_MENU:
       rect = &fgeom->menu_rect.visible;
       break;
+    case META_FRAME_CONTROL_APPMENU:
+      rect = &fgeom->appmenu_rect.visible;
+      break;
     case META_FRAME_CONTROL_MINIMIZE:
       rect = &fgeom->min_rect.visible;
       break;
@@ -2596,6 +2618,9 @@ get_control (MetaFrames *frames,
   if (POINT_IN_RECT (x, y, fgeom.menu_rect.clickable))
     return META_FRAME_CONTROL_MENU;
 
+  if (POINT_IN_RECT (x, y, fgeom.appmenu_rect.clickable))
+    return META_FRAME_CONTROL_APPMENU;
+
   meta_core_get (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), frame->xwindow,
                  META_CORE_GET_FRAME_FLAGS, &flags,
                  META_CORE_GET_END);
diff --git a/src/ui/frames.h b/src/ui/frames.h
index 1e83ffd..418aadd 100644
--- a/src/ui/frames.h
+++ b/src/ui/frames.h
@@ -33,6 +33,7 @@ typedef enum
   META_FRAME_CONTROL_TITLE,
   META_FRAME_CONTROL_DELETE,
   META_FRAME_CONTROL_MENU,
+  META_FRAME_CONTROL_APPMENU,
   META_FRAME_CONTROL_MINIMIZE,
   META_FRAME_CONTROL_MAXIMIZE,
   META_FRAME_CONTROL_UNMAXIMIZE,
diff --git a/src/ui/theme-parser.c b/src/ui/theme-parser.c
index d2a57db..e916deb 100644
--- a/src/ui/theme-parser.c
+++ b/src/ui/theme-parser.c
@@ -36,7 +36,7 @@
  * look out for.
  */
 #define THEME_MAJOR_VERSION 3
-#define THEME_MINOR_VERSION 4
+#define THEME_MINOR_VERSION 5
 #define THEME_VERSION (1000 * THEME_MAJOR_VERSION + THEME_MINOR_VERSION)
 
 #define METACITY_THEME_FILENAME_FORMAT "metacity-theme-%d.xml"
diff --git a/src/ui/theme.c b/src/ui/theme.c
index d637d7a..5763851 100644
--- a/src/ui/theme.c
+++ b/src/ui/theme.c
@@ -448,6 +448,8 @@ map_button_function_to_type (MetaButtonFunction  function)
       return META_BUTTON_TYPE_UNSTICK;
     case META_BUTTON_FUNCTION_MENU:
       return META_BUTTON_TYPE_MENU;
+    case META_BUTTON_FUNCTION_APPMENU:
+      return META_BUTTON_TYPE_APPMENU;
     case META_BUTTON_FUNCTION_MINIMIZE:
       return META_BUTTON_TYPE_MINIMIZE;
     case META_BUTTON_FUNCTION_MAXIMIZE:
@@ -516,6 +518,11 @@ rect_for_function (MetaFrameGeometry *fgeom,
         return &fgeom->menu_rect;
       else
         return NULL;
+    case META_BUTTON_FUNCTION_APPMENU:
+      if (flags & META_FRAME_ALLOWS_APPMENU)
+        return &fgeom->appmenu_rect;
+      else
+        return NULL;
     case META_BUTTON_FUNCTION_MINIMIZE:
       if (flags & META_FRAME_ALLOWS_MINIMIZE)
         return &fgeom->min_rect;
@@ -818,6 +825,12 @@ meta_frame_layout_calc_geometry (const MetaFrameLayout  *layout,
       else if (strip_button (left_func_rects, left_bg_rects,
                              &n_left, &fgeom->menu_rect))
         continue;
+      else if (strip_button (right_func_rects, right_bg_rects,
+                             &n_right, &fgeom->appmenu_rect))
+        continue;
+      else if (strip_button (left_func_rects, left_bg_rects,
+                             &n_left, &fgeom->appmenu_rect))
+        continue;
       else
         {
           meta_bug ("Could not find a button to strip. n_left = %d n_right = %d\n",
@@ -4345,7 +4358,7 @@ map_button_state (MetaButtonType           button_type,
 
   switch (button_type)
     {
-    /* First hande functions, which map directly */
+    /* First handle functions, which map directly */
     case META_BUTTON_TYPE_SHADE:
     case META_BUTTON_TYPE_ABOVE:
     case META_BUTTON_TYPE_STICK:
@@ -4353,6 +4366,7 @@ map_button_state (MetaButtonType           button_type,
     case META_BUTTON_TYPE_UNABOVE:
     case META_BUTTON_TYPE_UNSTICK:
     case META_BUTTON_TYPE_MENU:
+    case META_BUTTON_TYPE_APPMENU:
     case META_BUTTON_TYPE_MINIMIZE:
     case META_BUTTON_TYPE_MAXIMIZE:
     case META_BUTTON_TYPE_CLOSE:
@@ -4559,6 +4573,10 @@ button_rect (MetaButtonType           type,
       *rect = fgeom->menu_rect.visible;
       break;
 
+    case META_BUTTON_TYPE_APPMENU:
+      *rect = fgeom->appmenu_rect.visible;
+      break;
+
     case META_BUTTON_TYPE_LAST:
       g_assert_not_reached ();
       break;
@@ -5918,6 +5936,8 @@ meta_button_type_from_string (const char *str, MetaTheme *theme)
     return META_BUTTON_TYPE_MINIMIZE;
   else if (strcmp ("menu", str) == 0)
     return META_BUTTON_TYPE_MENU;
+  else if (strcmp ("appmenu", str) == 0)
+    return META_BUTTON_TYPE_APPMENU;
   else if (strcmp ("left_left_background", str) == 0)
     return META_BUTTON_TYPE_LEFT_LEFT_BACKGROUND;
   else if (strcmp ("left_middle_background", str) == 0)
@@ -5961,8 +5981,10 @@ meta_button_type_to_string (MetaButtonType type)
       return "unabove";
     case META_BUTTON_TYPE_UNSTICK:
       return "unstick";
-     case META_BUTTON_TYPE_MENU:
+    case META_BUTTON_TYPE_MENU:
       return "menu";
+    case META_BUTTON_TYPE_APPMENU:
+      return "appmenu";
     case META_BUTTON_TYPE_LEFT_LEFT_BACKGROUND:
       return "left_left_background";
     case META_BUTTON_TYPE_LEFT_MIDDLE_BACKGROUND:
@@ -6518,6 +6540,9 @@ meta_theme_earliest_version_with_button (MetaButtonType type)
     case META_BUTTON_TYPE_RIGHT_SINGLE_BACKGROUND:
       return 3003;
 
+    case META_BUTTON_TYPE_APPMENU:
+      return 3005;
+
     default:
       meta_warning("Unknown button %d\n", type);
       return 1000;
diff --git a/src/ui/theme.h b/src/ui/theme.h
index 2e97d35..68adf12 100644
--- a/src/ui/theme.h
+++ b/src/ui/theme.h
@@ -238,6 +238,7 @@ struct _MetaFrameGeometry
   MetaButtonSpace max_rect;
   MetaButtonSpace min_rect;
   MetaButtonSpace menu_rect;
+  MetaButtonSpace appmenu_rect;
   MetaButtonSpace shade_rect;
   MetaButtonSpace above_rect;
   MetaButtonSpace stick_rect;
@@ -657,6 +658,7 @@ typedef enum
   META_BUTTON_TYPE_MAXIMIZE,
   META_BUTTON_TYPE_MINIMIZE,
   META_BUTTON_TYPE_MENU,
+  META_BUTTON_TYPE_APPMENU,
   META_BUTTON_TYPE_SHADE,
   META_BUTTON_TYPE_ABOVE,
   META_BUTTON_TYPE_STICK,
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