Decouple embed single instantiation and initialisation. Prevents

2006-01-18  Christian Persch  <chpe@cvs.gnome.org>

	* embed/ephy-embed-shell.c: (impl_get_embed_single):
	* embed/ephy-embed-single.c: (ephy_embed_single_init):
	* embed/ephy-embed-single.h:
	* embed/mozilla/mozilla-embed-single.cpp:

	Decouple embed single instantiation and initialisation.
	Prevents double-initialisation on startup.

	* embed/mozilla/EphyContentPolicy.cpp:
	* embed/mozilla/EphyContentPolicy.h:

	Remove embed single variable, it was unused.

6 files changed, 58 insertions, 24 deletions

diff --git a/embed/ephy-embed-shell.c b/embed/ephy-embed-shell.c
index 9e50c59fc..32dd8e1bc 100644
--- a/embed/ephy-embed-shell.c
+++ b/embed/ephy-embed-shell.c
@@ -33,6 +33,9 @@
 #include "ephy-debug.h"
 #include "ephy-adblock-manager.h"
 
+#include <glib/gi18n.h>
+#include <gtk/gtkmessagedialog.h>
+
 #define EPHY_EMBED_SHELL_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_EMBED_SHELL, EphyEmbedShellPrivate))
 
 struct _EphyEmbedShellPrivate
@@ -43,6 +46,7 @@ struct _EphyEmbedShellPrivate
 	EphyEmbedSingle *embed_single;
 	EphyEncodings *encodings;
 	EphyAdBlockManager *adblock_manager;
+	guint single_initialised : 1;
 };
 
 enum
@@ -201,12 +205,41 @@ ephy_embed_shell_get_downloader_view (EphyEmbedShell *shell)
 static GObject *
 impl_get_embed_single (EphyEmbedShell *shell)
 {
+	EphyEmbedShellPrivate *priv;
+
 	g_return_val_if_fail (EPHY_IS_EMBED_SHELL (shell), NULL);
 
-	if (shell->priv->embed_single == NULL)
+	priv = shell->priv;
+
+	if (priv->embed_single != NULL &&
+	    !priv->single_initialised)
+	{
+		g_warning ("ephy_embed_shell_get_embed_single called while the single is being initialised!\n");
+		return G_OBJECT (priv->embed_single);
+	}
+
+	if (priv->embed_single == NULL)
 	{
-		shell->priv->embed_single = EPHY_EMBED_SINGLE
+		priv->embed_single = EPHY_EMBED_SINGLE
 			(ephy_embed_factory_new_object (EPHY_TYPE_EMBED_SINGLE));
+
+		if (!ephy_embed_single_init (priv->embed_single))
+		{
+			GtkWidget *dialog;
+
+			dialog = gtk_message_dialog_new
+					(NULL,
+					 GTK_DIALOG_MODAL,
+					 GTK_MESSAGE_ERROR,
+					 GTK_BUTTONS_CLOSE,
+					 _("Epiphany can't be used now. "
+							 "Mozilla initialization failed."));
+			gtk_dialog_run (GTK_DIALOG (dialog));
+
+			exit (0);
+		}
+
+		priv->single_initialised = TRUE;
 	}
 
 	return G_OBJECT (shell->priv->embed_single);
diff --git a/embed/ephy-embed-single.c b/embed/ephy-embed-single.c
index fe32a0289..33831f157 100644
--- a/embed/ephy-embed-single.c
+++ b/embed/ephy-embed-single.c
@@ -163,6 +163,20 @@ ephy_embed_single_iface_init (gpointer g_iface)
 }
 
 /**
+ * ephy_embed_single_init:
+ * @single: the #EphyEmbedSingle
+ * 
+ * Performs startup initialisations. Must be called before calling
+ * any other methods.
+ **/
+gboolean
+ephy_embed_single_init (EphyEmbedSingle *single)
+{
+	EphyEmbedSingleIface *iface = EPHY_EMBED_SINGLE_GET_IFACE (single);
+	return iface->init (single);
+}
+
+/**
  * ephy_embed_single_clear_cache:
  * @single: the #EphyEmbedSingle
  * 
diff --git a/embed/ephy-embed-single.h b/embed/ephy-embed-single.h
index 916773d7f..0ff733e94 100644
--- a/embed/ephy-embed-single.h
+++ b/embed/ephy-embed-single.h
@@ -60,6 +60,7 @@ struct _EphyEmbedSingleIface
 
 	/* Methods */
 
+	gboolean	  (* init)		(EphyEmbedSingle *single);
 	GtkWidget *	  (* open_window)	(EphyEmbedSingle *single,
 						 EphyEmbed *parent,
 						 const char *address,
@@ -76,6 +77,8 @@ struct _EphyEmbedSingleIface
 
 GType		ephy_embed_single_get_type		(void);
 
+gboolean	ephy_embed_single_init			(EphyEmbedSingle *single);
+
 GtkWidget      *ephy_embed_single_open_window		(EphyEmbedSingle *single,
 							 EphyEmbed *parent,
 							 const char *address,
diff --git a/embed/mozilla/EphyContentPolicy.cpp b/embed/mozilla/EphyContentPolicy.cpp
index b5910063b..930e39e86 100644
--- a/embed/mozilla/EphyContentPolicy.cpp
+++ b/embed/mozilla/EphyContentPolicy.cpp
@@ -55,9 +55,6 @@ EphyContentPolicy::EphyContentPolicy()
 	mLocked = eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_UNSAFE_PROTOCOLS);
 
 	mSafeProtocols = eel_gconf_get_string_list (CONF_LOCKDOWN_ADDITIONAL_SAFE_PROTOCOLS);
-
-	mEmbedSingle = ephy_embed_shell_get_embed_single (embed_shell);
-	g_return_if_fail (mEmbedSingle);
 }
 
 EphyContentPolicy::~EphyContentPolicy()
diff --git a/embed/mozilla/EphyContentPolicy.h b/embed/mozilla/EphyContentPolicy.h
index 3c4813a17..7639a6d00 100644
--- a/embed/mozilla/EphyContentPolicy.h
+++ b/embed/mozilla/EphyContentPolicy.h
@@ -50,9 +50,8 @@ public:
 	EphyContentPolicy();
 	virtual ~EphyContentPolicy();
 private:
-	GtkWidget *GetEmbedFromContext (nsISupports *aContext);
+	static GtkWidget *GetEmbedFromContext (nsISupports *aContext);
 
-	GObject *mEmbedSingle;
 	gboolean mLocked;
 	GSList *mSafeProtocols;
 };
diff --git a/embed/mozilla/mozilla-embed-single.cpp b/embed/mozilla/mozilla-embed-single.cpp
index 0c7d04e0a..a7b3b0d49 100644
--- a/embed/mozilla/mozilla-embed-single.cpp
+++ b/embed/mozilla/mozilla-embed-single.cpp
@@ -783,8 +783,10 @@ mozilla_stylesheet_shutdown (MozillaEmbedSingle *single)
 #endif /* HAVE_GECKO_1_8 */
 
 static gboolean
-init_services (MozillaEmbedSingle *single)
+impl_init (EphyEmbedSingle *esingle)
 {
+	MozillaEmbedSingle *single = MOZILLA_EMBED_SINGLE (esingle);
+
 	/* Pre initialization */
 	mozilla_init_plugin_path ();
 	mozilla_init_home ();
@@ -803,6 +805,7 @@ init_services (MozillaEmbedSingle *single)
 
 	/* Fire up the beast */
 	gtk_moz_embed_push_startup ();
+	/* FIXME check that it succeeded! */
 
 	mozilla_register_components ();
 
@@ -864,22 +867,6 @@ mozilla_embed_single_init (MozillaEmbedSingle *mes)
 				  MOZILLA_PROFILE_FILE,
 				  NULL);
 
-	if (!init_services (mes))
-	{
-		GtkWidget *dialog;
-
-		dialog = gtk_message_dialog_new
-			(NULL,
-                         GTK_DIALOG_MODAL,
-                         GTK_MESSAGE_ERROR,
-                         GTK_BUTTONS_CLOSE,
-                         _("Epiphany can't be used now. "
-                         "Mozilla initialization failed."));
-		gtk_dialog_run (GTK_DIALOG (dialog));
-
-		exit (0);
-	}
-
 	g_signal_connect_object (embed_shell, "prepare-close",
 				 G_CALLBACK (prepare_close_cb), mes,
 				 (GConnectFlags) 0);
@@ -1506,6 +1493,7 @@ mozilla_embed_single_class_init (MozillaEmbedSingleClass *klass)
 static void
 ephy_embed_single_iface_init (EphyEmbedSingleIface *iface)
 {
+	iface->init = impl_init;
 	iface->clear_cache = impl_clear_cache;
 	iface->clear_auth_cache = impl_clear_auth_cache;
 	iface->set_network_status = impl_set_network_status;