Initial revision

1 files changed, 690 insertions, 0 deletions

diff --git a/src/session.c b/src/session.c
new file mode 100644
index 000000000..920b49df9
--- /dev/null
+++ b/src/session.c
@@ -0,0 +1,690 @@
+/*
+ *  Copyright (C) 2002 Jorn Baayen
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "session.h"
+#include "ephy-shell.h"
+#include "ephy-tab.h"
+#include "ephy-window.h"
+#include "ephy-prefs.h"
+#include "ephy-string.h"
+#include "ephy-file-helpers.h"
+#include "eel-gconf-extensions.h"
+
+#include <libgnome/gnome-i18n.h>
+#include <string.h>
+#include <gtk/gtkdialog.h>
+#include <gtk/gtkimage.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkstock.h>
+#include <gtk/gtkhbox.h>
+#include <gtk/gtkvbox.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xmlmemory.h>
+#include <libgnomevfs/gnome-vfs-ops.h>
+#include <libgnomeui/gnome-client.h>
+
+enum
+{
+	RESTORE_TYPE_PROP
+};
+
+enum
+{
+	RESTORE_SESSION,
+	RESTORE_AS_BOOKMARKS,
+	DISCARD_SESSION
+};
+
+static void session_class_init (SessionClass *klass);
+static void session_init (Session *t);
+static void session_finalize (GObject *object);
+static void session_dispose (GObject *object);
+
+static GObjectClass *parent_class = NULL;
+
+struct SessionPrivate
+{
+	GList *windows;
+	gboolean dont_remove_crashed;
+};
+
+enum
+{
+	NEW_WINDOW,
+	CLOSE_WINDOW,
+        LAST_SIGNAL
+};
+
+static guint session_signals[LAST_SIGNAL] = { 0 };
+
+GType
+session_get_type (void)
+{
+        static GType session_type = 0;
+
+        if (session_type == 0)
+        {
+                static const GTypeInfo our_info =
+                {
+                        sizeof (SessionClass),
+                        NULL, /* base_init */
+                        NULL, /* base_finalize */
+                        (GClassInitFunc) session_class_init,
+                        NULL,
+                        NULL, /* class_data */
+                        sizeof (Session),
+                        0, /* n_preallocs */
+                        (GInstanceInitFunc) session_init
+                };
+
+                session_type = g_type_register_static (G_TYPE_OBJECT,
+						         "Session",
+						         &our_info, 0);
+        }
+
+        return session_type;
+
+}
+
+static void
+session_class_init (SessionClass *klass)
+{
+        GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+        parent_class = g_type_class_peek_parent (klass);
+
+        object_class->finalize = session_finalize;
+	object_class->dispose = session_dispose;
+
+	session_signals[NEW_WINDOW] =
+                g_signal_new ("new_window",
+                              G_OBJECT_CLASS_TYPE (object_class),
+                              G_SIGNAL_RUN_FIRST,
+                              G_STRUCT_OFFSET (SessionClass, new_window),
+                              NULL, NULL,
+                              g_cclosure_marshal_VOID__OBJECT,
+                              G_TYPE_NONE,
+                              1,
+			      G_TYPE_OBJECT);
+
+	session_signals[CLOSE_WINDOW] =
+		g_signal_new ("close_window",
+			      G_OBJECT_CLASS_TYPE (object_class),
+			      G_SIGNAL_RUN_FIRST,
+			      G_STRUCT_OFFSET (SessionClass, close_window),
+			      NULL, NULL,
+			      g_cclosure_marshal_VOID__VOID,
+			      G_TYPE_NONE,
+			      0);
+}
+
+static char *
+get_session_filename (const char *filename)
+{
+	char *save_to;
+
+	g_return_val_if_fail (filename != NULL, NULL);
+
+	if (strcmp (filename, SESSION_CRASHED) == 0)
+	{
+		save_to = g_build_filename (ephy_dot_dir (),
+					    "session_crashed.xml",
+					    NULL);
+	}
+	else if (strcmp (filename, SESSION_GNOME) == 0)
+	{
+		char *tmp;
+
+		save_to = g_build_filename (ephy_dot_dir (),
+					    "session_gnome-XXXXXX",
+					    NULL);
+		tmp = ephy_file_tmp_filename (save_to, "xml");
+		g_free (save_to);
+		save_to = tmp;
+	}
+	else
+	{
+		save_to = g_strdup (filename);
+	}
+
+	return save_to;
+}
+
+static void
+do_session_resume (Session *session)
+{
+	const char *crashed_session;
+
+	crashed_session = get_session_filename (SESSION_CRASHED);
+	session_load (session, crashed_session);
+}
+
+static void
+crashed_resume_dialog (Session *session)
+{
+	GtkWidget *dialog;
+	GtkWidget *label;
+	GtkWidget *vbox;
+	GtkWidget *hbox;
+	GtkWidget *image;
+
+	dialog = gtk_dialog_new_with_buttons
+		(_("Crash Recovery"), NULL,
+		 GTK_DIALOG_NO_SEPARATOR,
+		 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+		 _("_Recover"), GTK_RESPONSE_OK,
+		 NULL);
+	gtk_dialog_set_has_separator (GTK_DIALOG (dialog), FALSE);
+	gtk_container_set_border_width (GTK_CONTAINER (dialog), 6);
+	gtk_box_set_spacing (GTK_BOX (GTK_DIALOG (dialog)->vbox), 12);
+
+	hbox = gtk_hbox_new (FALSE, 6);
+	gtk_widget_show (hbox);
+	gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), hbox,
+			    TRUE, TRUE, 0);
+
+	image = gtk_image_new_from_stock (GTK_STOCK_DIALOG_WARNING,
+					  GTK_ICON_SIZE_DIALOG);
+	gtk_misc_set_alignment (GTK_MISC (image), 0.5, 0.0);
+	gtk_widget_show (image);
+	gtk_box_pack_start (GTK_BOX (hbox), image,
+			    TRUE, TRUE, 0);
+
+	vbox = gtk_vbox_new (FALSE, 6);
+	gtk_widget_show (vbox);
+	gtk_box_pack_start (GTK_BOX (hbox), vbox,
+			    TRUE, TRUE, 0);
+
+	label = gtk_label_new (NULL);
+	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+	gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+	gtk_widget_show (label);
+	gtk_label_set_markup (GTK_LABEL (label),
+			      _("<b>Epiphany appears to have crashed or been killed the last time it was run.</b>"));
+	gtk_box_pack_start (GTK_BOX (vbox), label,
+			    TRUE, TRUE, 0);
+
+	label = gtk_label_new (_("You can recover the opened tabs and windows."));
+	gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
+	gtk_widget_show (label);
+	gtk_box_pack_start (GTK_BOX (vbox), label,
+			    TRUE, TRUE, 0);
+
+	if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK)
+	{
+		do_session_resume (session);
+	}
+
+	gtk_widget_destroy (dialog);
+}
+
+/**
+ * session_autoresume:
+ * @session: a #Session
+ *
+ * Resume a crashed session when necessary (interactive)
+ *
+ * Return value: return false if no window  has been opened
+ **/
+gboolean
+session_autoresume (Session *session)
+{
+	char *saved_session;
+	gboolean loaded = FALSE;
+
+	saved_session = get_session_filename (SESSION_CRASHED);
+
+	if (g_file_test (saved_session, G_FILE_TEST_EXISTS))
+	{
+		crashed_resume_dialog (session);
+		loaded = TRUE;
+	}
+
+	g_free (saved_session);
+
+	/* return false if no window has been opened */
+	return (session->priv->windows != NULL);
+}
+
+static void
+create_session_directory (void)
+{
+	char *dir;
+
+	dir = g_build_filename (ephy_dot_dir (),
+			        "/sessions",
+			        NULL);
+
+	if (!g_file_test (dir, G_FILE_TEST_EXISTS))
+	{
+		if (mkdir (dir, 488) != 0)
+                {
+                        g_error ("couldn't make %s' directory", dir);
+                }
+	}
+
+	g_free (dir);
+}
+
+static gboolean
+save_yourself_cb  (GnomeClient *client,
+                   gint phase,
+                   GnomeSaveStyle save_style,
+                   gboolean shutdown,
+                   GnomeInteractStyle interact_style,
+                   gboolean fast,
+		   Session *session)
+{
+	char *argv[] = { "ephy", "--load-session", NULL };
+	char *discard_argv[] = { "rm", "-r", NULL };
+
+	argv[2] = get_session_filename (SESSION_GNOME);
+	gnome_client_set_restart_command
+		(client, 3, argv);
+
+	discard_argv[2] = argv[2];
+	gnome_client_set_discard_command (client, 3,
+					  discard_argv);
+
+	session_save (session, argv[2]);
+
+	g_free (argv[2]);
+
+	return TRUE;
+}
+
+static void
+session_die_cb (GnomeClient* client,
+		Session *session)
+{
+	session_close (session);
+}
+
+static void
+gnome_session_init (Session *session)
+{
+	GnomeClient *client;
+
+	client = gnome_master_client ();
+
+	g_signal_connect (G_OBJECT (client),
+			  "save_yourself",
+			  G_CALLBACK (save_yourself_cb),
+			  session);
+
+	g_signal_connect (G_OBJECT (client),
+			  "die",
+			  G_CALLBACK (session_die_cb),
+			  session);
+}
+
+static void
+session_init (Session *session)
+{
+        session->priv = g_new0 (SessionPrivate, 1);
+	session->priv->windows = NULL;
+	session->priv->dont_remove_crashed = FALSE;
+
+	create_session_directory ();
+
+	gnome_session_init (session);
+}
+
+/*
+ * session_close:
+ * @session: a #Session
+ *
+ * Close the session and all the owned windows
+ **/
+void
+session_close (Session *session)
+{
+	GList *l;
+
+	/* close all windows */
+	l = g_list_copy (session->priv->windows);
+	for (; l != NULL; l = l->next)
+	{
+		EphyWindow *window = EPHY_WINDOW(l->data);
+		gtk_widget_destroy (GTK_WIDGET(window));
+	}
+}
+
+static void
+session_delete (Session *session,
+		const char *filename)
+{
+	char *save_to;
+
+	save_to = get_session_filename (filename);
+
+	gnome_vfs_unlink (save_to);
+
+	g_free (save_to);
+}
+
+static void
+session_dispose (GObject *object)
+{
+	Session *session = SESSION(object);
+
+	if (!session->priv->dont_remove_crashed)
+	{
+		session_delete (session, SESSION_CRASHED);
+	}
+}
+
+static void
+session_finalize (GObject *object)
+{
+	Session *t;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (IS_SESSION (object));
+
+	t = SESSION (object);
+
+        g_return_if_fail (t->priv != NULL);
+
+	g_list_free (t->priv->windows);
+
+        g_free (t->priv);
+
+        G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+/**
+ * session_new:
+ *
+ * Create a #Session. A session hold the information
+ * about the windows currently opened and is able to persist
+ * and restore his status.
+ **/
+Session *
+session_new (void)
+{
+	Session *t;
+
+	t = SESSION (g_object_new (SESSION_TYPE, NULL));
+
+	g_return_val_if_fail (t->priv != NULL, NULL);
+
+	return t;
+}
+
+static void
+save_tab (EphyWindow *window,
+	  EphyTab *tab,
+	  xmlDocPtr doc,
+	  xmlNodePtr window_node)
+{
+	EmbedChromeMask chrome;
+	const char *location;
+	const char *title;
+        xmlNodePtr embed_node;
+
+	chrome = ephy_window_get_chrome (window);
+
+	/* skip if it's a XUL dialog */
+        if (chrome & EMBED_CHROME_OPENASCHROME) return;
+
+	/* make a new XML node */
+        embed_node = xmlNewDocNode (doc, NULL,
+                                    "embed", NULL);
+
+        /* store title in the node */
+	title = ephy_tab_get_title (tab);
+	xmlSetProp (embed_node, "title", title);
+
+        /* otherwise, use the actual location. */
+	location = ephy_tab_get_location (tab);
+        xmlSetProp (embed_node, "url", location);
+
+	/* insert node into the tree */
+	xmlAddChild (window_node, embed_node);
+}
+
+/*
+ * session_save:
+ * @session: a #Session
+ * @filename: path of the xml file where the session is saved.
+ *
+ * Save the session on disk. Keep information about window size,
+ * opened urls ...
+ **/
+void
+session_save (Session *session,
+	      const char *filename)
+{
+	GList *w;
+        xmlNodePtr root_node;
+        xmlNodePtr window_node;
+        xmlDocPtr doc;
+        gchar buffer[32];
+	char *save_to;
+
+	save_to = get_session_filename (filename);
+
+        doc = xmlNewDoc ("1.0");
+
+        /* create and set the root node for the session */
+        root_node = xmlNewDocNode (doc, NULL, "session", NULL);
+        xmlDocSetRootElement (doc, root_node);
+
+	w = session_get_windows (session);
+
+        /* iterate through all the windows */
+        for (; w != NULL; w = w->next)
+        {
+		const GList *tabs;
+		int x = 0, y = 0, width = 0, height = 0;
+		EphyWindow *window = EPHY_WINDOW(w->data);
+		GtkWidget *wmain;
+
+		tabs = ephy_window_get_tabs (window);
+		g_return_if_fail (tabs != NULL);
+
+                /* make a new XML node */
+                window_node = xmlNewDocNode (doc, NULL, "window", NULL);
+
+                /* get window geometry */
+		wmain = GTK_WIDGET (window);
+                gtk_window_get_size (GTK_WINDOW(wmain), &width, &height);
+                gtk_window_get_position (GTK_WINDOW(wmain), &x, &y);
+
+                /* set window properties */
+                snprintf(buffer, 32, "%d", x);
+                xmlSetProp (window_node, "x", buffer);
+                snprintf(buffer, 32, "%d", y);
+
+		xmlSetProp (window_node, "y", buffer);
+                snprintf(buffer, 32, "%d", width);
+                xmlSetProp (window_node, "width", buffer);
+                snprintf(buffer, 32, "%d", height);
+                xmlSetProp (window_node, "height", buffer);
+
+		for (; tabs != NULL; tabs = tabs->next)
+	        {
+			EphyTab *tab = EPHY_TAB(tabs->data);
+			save_tab (window, tab, doc, window_node);
+		}
+
+		xmlAddChild (root_node, window_node);
+        }
+
+        /* save it all out to disk */
+        xmlSaveFile (save_to, doc);
+        xmlFreeDoc (doc);
+
+	g_free (save_to);
+}
+
+static void
+parse_embed (xmlNodePtr child, EphyWindow *window)
+{
+	EphyTab *tab;
+	EphyEmbed *embed;
+
+	while (child != NULL)
+	{
+		if (strcmp (child->name, "embed") == 0)
+		{
+			char *url;
+			char *title;
+
+			g_return_if_fail (window != NULL);
+
+			url = xmlGetProp (child, "url");
+			title = xmlGetProp (child, "title");
+
+			tab = ephy_tab_new ();
+		        embed = ephy_tab_get_embed (tab);
+
+			gtk_widget_show (GTK_WIDGET(embed));
+
+			ephy_window_add_tab (window, tab, FALSE);
+
+			ephy_embed_load_url (embed, url);
+
+			xmlFree (url);
+			xmlFree (title);
+		}
+
+		child = child->next;
+	}
+}
+
+/*
+ * session_load:
+ * @session: a #Session
+ * @filename: the path of the source file
+ *
+ * Load a session from disk, restoring the windows and their state
+ **/
+void
+session_load (Session *session,
+	      const char *filename)
+{
+	xmlDocPtr doc;
+        xmlNodePtr child;
+	GtkWidget *wmain;
+	EphyWindow *window;
+	char *save_to;
+
+	save_to = get_session_filename (filename);
+
+	doc = xmlParseFile (save_to);
+
+	child = xmlDocGetRootElement (doc);
+
+	/* skip the session node */
+	child = child->children;
+
+	while (child != NULL)
+	{
+		if (strcmp (child->name, "window") == 0)
+		{
+			gint x = 0, y = 0, width = 0, height = 0;
+			xmlChar *tmp;
+
+			tmp = xmlGetProp (child, "x");
+			ephy_str_to_int (tmp, &x);
+			xmlFree (tmp);
+			tmp = xmlGetProp (child, "y");
+			ephy_str_to_int (tmp, &y);
+			xmlFree (tmp);
+			tmp = xmlGetProp (child, "width");
+			ephy_str_to_int (tmp, &width);
+			xmlFree (tmp);
+			tmp = xmlGetProp (child, "height");
+			ephy_str_to_int (tmp, &height);
+			xmlFree (tmp);
+
+			window = ephy_window_new ();
+			wmain = GTK_WIDGET (window);
+			gtk_widget_show (GTK_WIDGET(window));
+
+			gtk_window_move (GTK_WINDOW(wmain), x, y);
+			gtk_window_set_default_size (GTK_WINDOW (wmain),
+				                     width, height);
+
+			parse_embed (child->children, window);
+		}
+
+		child = child->next;
+	}
+
+	xmlFreeDoc (doc);
+
+	g_free (save_to);
+}
+
+GList *
+session_get_windows (Session *session)
+{
+	g_return_val_if_fail (IS_SESSION (session), NULL);
+
+	return session->priv->windows;
+}
+
+/**
+ * session_add_window:
+ * @session: a #Session
+ * @window: a #EphyWindow
+ *
+ * Add a window to the session. #EphyWindow take care of adding
+ * itself to session.
+ **/
+void
+session_add_window (Session *session,
+		    EphyWindow *window)
+{
+	session->priv->windows = g_list_append (session->priv->windows, window);
+
+	g_signal_emit (G_OBJECT (session),
+		       session_signals[NEW_WINDOW],
+		       0, window);
+}
+
+/**
+ * session_remove_window:
+ * @session: a #Session
+ * @window: a #EphyWindow
+ *
+ * Remove a window from the session. #EphyWindow take care of removing
+ * itself to session.
+ **/
+void
+session_remove_window (Session *session,
+		       EphyWindow *window)
+{
+	g_signal_emit (G_OBJECT (session),
+		       session_signals[CLOSE_WINDOW],
+		       0);
+
+	session->priv->windows = g_list_remove (session->priv->windows, window);
+
+	/* autodestroy of the session, necessay to avoid
+	 * conflicts with the nautilus view */
+	if (session->priv->windows == NULL)
+	{
+		g_object_unref (session);
+	}
+}
+