ctypes libs are tracked by firetray.Handler.

(sub)modules using ctypes libs just need to declare opened libs, which will be
ultimately closed by the Handler. Not only is this fancier, but also useful in
situations where we want to init()/shutdown() modules without closing libs used
by others (ex: IMStatusIcon)

src/modules/FiretrayHandler.jsm

@@ -36,6 +36,8 @@ firetray.Handler = {
   windowsCount: 0,
   visibleWindowsCount: 0,
   observedTopics: {},
+  ctypesLibs: {},               // {"lib1": lib1, "lib2": lib2}
+
 
   appId:      (function(){return Services.appinfo.ID;})(),
   appName:    (function(){return Services.appinfo.name;})(),
@@ -117,7 +119,7 @@ firetray.Handler = {
       firetray.Messaging.shutdown();
     firetray.StatusIcon.shutdown();
     firetray.Window.shutdown();
-    // watchout order and sufficiency of lib closings (tryCloseLibs())
+    this.tryCloseLibs();
 
     firetray.Utils.removeAllObservers(this);
 
@@ -126,6 +128,24 @@ firetray.Handler = {
     return true;
   },
 
+  tryCloseLibs: function() {
+    try {
+      for (libName in this.ctypesLibs) {
+        let lib = this.ctypesLibs[libName];
+        if (lib.available())
+          lib.close();
+      };
+    } catch(x) { F.ERROR(x); }
+  },
+
+  subscribeLibsForClosing: function(libs) {
+    for (let i=0, len=libs.length; i<len; ++i) {
+      let lib = libs[i];
+      if (!this.ctypesLibs.hasOwnProperty(lib.name))
+        this.ctypesLibs[lib.name] = lib;
+    }
+  },
+
   observe: function(subject, topic, data) {
     switch (topic) {
     case "sessionstore-windows-restored":

src/modules/commons.js

@@ -216,15 +216,6 @@ firetray.Utils = {
     timer.initWithCallback({ notify: callback },
       delay, timerType);
     return timer;
-  },
-
-  tryCloseLibs: function(libs) {
-    try {
-      libs.forEach(function(lib) {
-        if (lib.available())
-          lib.close();
-      });
-    } catch(x) { F.ERROR(x); }
   }
 
 };

src/modules/ctypes/ctypes-utils.jsm

@@ -11,7 +11,7 @@
  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  * for the specific language governing rights and limitations under the
  * License.
- * 
+ *
  * The Original Code is Firetray
  *
  * The Initial Developer of the Original Code is
@@ -121,6 +121,8 @@ function ctypes_library(aName, aABIs, aDefines, aGlobal) {
       }
     }
 
+    this.name = aName;
+
     this.close = function() {
       F.LOG("Closing library " + aName);
       library.close();

src/modules/linux/FiretrayGtkIcons.jsm

@@ -8,6 +8,7 @@ const Cu = Components.utils;
 
 Cu.import("resource://firetray/ctypes/linux/gtk.jsm");
 Cu.import("resource://firetray/commons.js");
+firetray.Handler.subscribeLibsForClosing([gtk]);
 
 if ("undefined" == typeof(firetray.StatusIcon))
   F.ERROR("This module MUST be imported from/after StatusIcon !");
@@ -32,7 +33,6 @@ firetray.GtkIcons = {
   },
 
   shutdown: function() {
-    firetray.Utils.tryCloseLibs([gtk]);
     this.initialized = false;
   },
 

src/modules/linux/FiretrayIMStatusIcon.jsm

@@ -13,6 +13,7 @@ Cu.import("resource://firetray/ctypes/linux/gobject.jsm");
 Cu.import("resource://firetray/ctypes/linux/gio.jsm");
 Cu.import("resource://firetray/ctypes/linux/gtk.jsm");
 Cu.import("resource://firetray/commons.js");
+firetray.Handler.subscribeLibsForClosing([gobject, gio, gtk]);
 
 if ("undefined" == typeof(firetray.Handler))
   F.ERROR("This module MUST be imported from/after FiretrayHandler !");
@@ -44,9 +45,6 @@ firetray.IMStatusIcon = {
 
   shutdown: function() {
     this.destroyIcons();
-    // FIXME: tryCloseLibs should be done by Handler only, submodules should
-    // just pass the imported ctypes modules to it
-    // firetray.Utils.tryCloseLibs([gobject, gio, gtk]);
     this.initialized = false;
   },
 

src/modules/linux/FiretrayPopupMenu.jsm

@@ -12,6 +12,7 @@ Cu.import("resource://gre/modules/ctypes.jsm");
 Cu.import("resource://firetray/ctypes/linux/gobject.jsm");
 Cu.import("resource://firetray/ctypes/linux/gtk.jsm");
 Cu.import("resource://firetray/commons.js");
+firetray.Handler.subscribeLibsForClosing([gobject, gtk]);
 
 if ("undefined" == typeof(firetray.StatusIcon))
   F.ERROR("This module MUST be imported from/after StatusIcon !");
@@ -61,7 +62,6 @@ firetray.PopupMenu = {
 
   shutdown: function() {
     F.LOG("Disabling PopupMenu");
-    firetray.Utils.tryCloseLibs([gobject, gtk]);
     this.initialized = false;
   },
 

src/modules/linux/FiretrayStatusIcon.jsm

@@ -17,6 +17,7 @@ Cu.import("resource://firetray/ctypes/linux/gtk.jsm");
 Cu.import("resource://firetray/ctypes/linux/pango.jsm");
 Cu.import("resource://firetray/ctypes/linux/pangocairo.jsm");
 Cu.import("resource://firetray/commons.js");
+firetray.Handler.subscribeLibsForClosing([cairo, gobject, gdk, gio, gtk, pango, pangocairo]);
 
 if ("undefined" == typeof(firetray.Handler))
   F.ERROR("This module MUST be imported from/after FiretrayHandler !");
@@ -63,7 +64,6 @@ firetray.StatusIcon = {
     firetray.PopupMenu.shutdown();
     // FIXME: should destroy/hide icon here
     firetray.GtkIcons.shutdown();
-    firetray.Utils.tryCloseLibs([cairo, gobject, gdk, gio, gtk, pango, pangocairo]);
     this.initialized = false;
   },
 

src/modules/linux/FiretrayWindow.jsm

@@ -23,6 +23,7 @@ Cu.import("resource://firetray/ctypes/linux/gtk.jsm");
 Cu.import("resource://firetray/ctypes/linux/libc.jsm");
 Cu.import("resource://firetray/ctypes/linux/x11.jsm");
 Cu.import("resource://firetray/commons.js");
+firetray.Handler.subscribeLibsForClosing([gobject, gdk, gtk, libc, x11, glib]);
 
 if ("undefined" == typeof(firetray.Handler))
   F.ERROR("This module MUST be imported from/after FiretrayHandler !");
@@ -61,7 +62,6 @@ firetray.Window = {
   },
 
   shutdown: function() {
-    firetray.Utils.tryCloseLibs([gobject, gdk, gtk, libc, x11, glib]);
     this.initialized = false;
   },