automaximize: Make it optional

Make automaximize optional by adding a gsetting "auto-maximize"
(defaults to true).

https://bugzilla.gnome.org/show_bug.cgi?id=680990

src/core/prefs.c

@@ -99,6 +99,7 @@ static gboolean resize_with_right_button = FALSE;
 static gboolean edge_tiling = FALSE;
 static gboolean force_fullscreen = TRUE;
 static gboolean ignore_request_hide_titlebar = FALSE;
+static gboolean auto_maximize = TRUE;
 
 static GDesktopVisualBellType visual_bell_type = G_DESKTOP_VISUAL_BELL_FULLSCREEN_FLASH;
 static MetaButtonLayout button_layout;
@@ -368,6 +369,13 @@ static MetaBoolPreference preferences_bool[] =
       },
       &no_tab_popup,
     },
+    {
+      { "auto-maximize",
+        SCHEMA_MUTTER,
+        META_PREF_AUTO_MAXIMIZE,
+      },
+      &auto_maximize,
+    },
     { { NULL, 0, 0 }, NULL },
   };
 
@@ -1666,6 +1674,9 @@ meta_preference_to_string (MetaPreference pref)
 
     case META_PREF_DYNAMIC_WORKSPACES:
       return "DYNAMIC_WORKSPACES";
+
+    case META_PREF_AUTO_MAXIMIZE:
+      return "AUTO_MAXIMIZE";
     }
 
   return "(unknown)";
@@ -2091,6 +2102,12 @@ meta_prefs_get_edge_tiling ()
   return edge_tiling;
 }
 
+gboolean
+meta_prefs_get_auto_maximize (void)
+{
+  return auto_maximize;
+}
+
 MetaKeyBindingAction
 meta_prefs_get_keybinding_action (const char *name)
 {

src/core/window.c

@@ -3020,7 +3020,7 @@ meta_window_show (MetaWindow *window)
 
   if (!window->placed)
     {
-      if (window->showing_for_first_time && window->has_maximize_func)
+      if (meta_prefs_get_auto_maximize() && window->showing_for_first_time && window->has_maximize_func)
         {
           MetaRectangle work_area;
           meta_window_get_work_area_for_monitor (window, window->monitor->number, &work_area);

src/meta/prefs.h

@@ -67,7 +67,8 @@ typedef enum
   META_PREF_FORCE_FULLSCREEN,
   META_PREF_WORKSPACES_ONLY_ON_PRIMARY,
   META_PREF_NO_TAB_POPUP,
-  META_PREF_DRAGGABLE_BORDER_WIDTH
+  META_PREF_DRAGGABLE_BORDER_WIDTH,
+  META_PREF_AUTO_MAXIMIZE
 } MetaPreference;
 
 typedef void (* MetaPrefsChangedFunc) (MetaPreference pref,
@@ -105,6 +106,7 @@ gboolean                    meta_prefs_get_focus_change_on_pointer_rest (void);
 gboolean                    meta_prefs_get_gnome_accessibility (void);
 gboolean                    meta_prefs_get_gnome_animations   (void);
 gboolean                    meta_prefs_get_edge_tiling        (void);
+gboolean                    meta_prefs_get_auto_maximize      (void);
 
 void                        meta_prefs_get_button_layout (MetaButtonLayout *button_layout);
 

src/org.gnome.mutter.gschema.xml.in

@@ -84,6 +84,15 @@
       </_description>
     </key>
 
+    <key name="auto-maximize" type="b">
+      <default>true</default>
+      <_summary>Auto maximize nearly monitor sized windows</_summary>
+      <_description>
+        If enabled, monitor nearly monitor sized windows automatically get
+        maximized when mapped.
+      </_description>
+    </key>
+
     <child name="keybindings" schema="org.gnome.mutter.keybindings"/>
 
   </schema>