/*
* Copyright (C) 2002 Jorn Baayen
* Copyright (C) 2003, 2004 Marco Pesenti Gritti
* Copyright (C) 2003, 2004 Christian Persch
*
* 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.
*
* $Id$
*/
#include "config.h"
#include "ephy-session.h"
#include "ephy-window.h"
#include "ephy-tab.h"
#include "ephy-shell.h"
#include "ephy-history-window.h"
#include "ephy-bookmarks-editor.h"
#include "ephy-file-helpers.h"
#include "eel-gconf-extensions.h"
#include "ephy-prefs.h"
#include "ephy-gui.h"
#include "ephy-debug.h"
#include <glib/gi18n.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <gtk/gtkimage.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkstock.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtkvbox.h>
#include <gtk/gtkdialog.h>
#include <gtk/gtkmessagedialog.h>
#include <libgnomevfs/gnome-vfs-ops.h>
#include <libxml/tree.h>
#include <libxml/xmlwriter.h>
#define EPHY_SESSION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_SESSION, EphySessionPrivate))
struct _EphySessionPrivate
{
GList *windows;
GList *tool_windows;
GtkWidget *resume_dialog;
gboolean dont_save;
};
#define BOOKMARKS_EDITOR_ID "BookmarksEditor"
#define HISTORY_WINDOW_ID "HistoryWindow"
#define SESSION_CRASHED "type:session_crashed"
static void ephy_session_class_init (EphySessionClass *klass);
static void ephy_session_iface_init (EphyExtensionIface *iface);
static void ephy_session_init (EphySession *session);
enum
{
PROP_0,
PROP_ACTIVE_WINDOW
};
static GObjectClass *parent_class = NULL;
GType
ephy_session_get_type (void)
{
static GType type = 0;
if (G_UNLIKELY (type == 0))
{
static const GTypeInfo our_info =
{
sizeof (EphySessionClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) ephy_session_class_init,
NULL,
NULL, /* class_data */
sizeof (EphySession),
0, /* n_preallocs */
(GInstanceInitFunc) ephy_session_init
};
static const GInterfaceInfo extension_info =
{
(GInterfaceInitFunc) ephy_session_iface_init,
NULL,
NULL
};
type = g_type_register_static (G_TYPE_OBJECT,
"EphySession",
&our_info, 0);
g_type_add_interface_static (type,
EPHY_TYPE_EXTENSION,
&extension_info);
}
return type;
}
static char *
get_session_filename (const char *filename)
{
char *save_to;
if (filename == NULL)
{
return NULL;
}
if (strcmp (filename, SESSION_CRASHED) == 0)
{
save_to = g_build_filename (ephy_dot_dir (),
"session_crashed.xml",
NULL);
}
else
{
save_to = g_strdup (filename);
}
return save_to;
}
static void
session_delete (EphySession *session,
const char *filename)
{
char *save_to;
save_to = get_session_filename (filename);
gnome_vfs_unlink (save_to);
g_free (save_to);
}
static void
net_stop_cb (EphyEmbed *embed,
EphySession *session)
{
ephy_session_save (session, SESSION_CRASHED);
}
static void
tab_added_cb (GtkWidget *notebook,
EphyTab *tab,
EphySession *session)
{
g_signal_connect (ephy_tab_get_embed (tab), "net_stop",
G_CALLBACK (net_stop_cb), session);
}
static void
tab_removed_cb (GtkWidget *notebook,
EphyTab *tab,
EphySession *session)
{
ephy_session_save (session, SESSION_CRASHED);
g_signal_handlers_disconnect_by_func
(ephy_tab_get_embed (tab), G_CALLBACK (net_stop_cb), session);
}
static void
tabs_reordered_cb (GtkWidget *notebook,
EphySession *session)
{
ephy_session_save (session, SESSION_CRASHED);
}
static gboolean
window_focus_in_event_cb (EphyWindow *window,
GdkEventFocus *event,
EphySession *session)
{
LOG ("focus-in-event for window %p", window);
g_return_val_if_fail (g_list_find (session->priv->windows, window) != NULL, FALSE);
/* move the active window to the front of the list */
session->priv->windows = g_list_remove (session->priv->windows, window);
session->priv->windows = g_list_prepend (session->priv->windows, window);
g_object_notify (G_OBJECT (session), "active-window");
/* propagate event */
return FALSE;
}
static void
impl_attach_window (EphyExtension *extension,
EphyWindow *window)
{
EphySession *session = EPHY_SESSION (extension);
GtkWidget *notebook;
LOG ("impl_attach_window");
session->priv->windows = g_list_append (session->priv->windows, window);
ephy_session_save (session, SESSION_CRASHED);
g_signal_connect (window, "focus-in-event",
G_CALLBACK (window_focus_in_event_cb), session);
notebook = ephy_window_get_notebook (window);
g_signal_connect (notebook, "tab_added",
G_CALLBACK (tab_added_cb), session);
g_signal_connect (notebook, "tab_removed",
G_CALLBACK (tab_removed_cb), session);
g_signal_connect (notebook, "tabs_reordered",
G_CALLBACK (tabs_reordered_cb), session);
/* Set unique identifier as role, so that on restore, the WM can
* place the window on the right workspace
*/
if (gtk_window_get_role (GTK_WINDOW (window)) == NULL)
{
/* I guess rand() is unique enough, otherwise we could use
* time + pid or something
*/
char *role;
role = g_strdup_printf ("epiphany-window-%x", rand());
gtk_window_set_role (GTK_WINDOW (window), role);
g_free (role);
}
}
static void
impl_detach_window (EphyExtension *extension,
EphyWindow *window)
{
EphySession *session = EPHY_SESSION (extension);
LOG ("impl_detach_window");
session->priv->windows = g_list_remove (session->priv->windows, window);
ephy_session_save (session, SESSION_CRASHED);
/* NOTE: since the window will be destroyed anyway, we don't need to
* disconnect our signal handlers from its components.
*/
}
static void
ensure_session_directory (void)
{
char *dir;
dir = g_build_filename (ephy_dot_dir (), "sessions", NULL);
if (g_file_test (dir, G_FILE_TEST_EXISTS) == FALSE)
{
if (mkdir (dir, 488) != 0)
{
g_error ("Unable to create session directory '%s'\n", dir);
}
}
g_free (dir);
}
static void
ephy_session_init (EphySession *session)
{
session->priv = EPHY_SESSION_GET_PRIVATE (session);
LOG ("EphySession initialising");
ensure_session_directory ();
}
static void
ephy_session_dispose (GObject *object)
{
EphySession *session = EPHY_SESSION(object);
LOG ("EphySession disposing");
session_delete (session, SESSION_CRASHED);
parent_class->dispose (object);
}
static void
ephy_session_finalize (GObject *object)
{
EphySession *session = EPHY_SESSION (object);
LOG ("EphySession finalising");
/* FIXME: those should be NULL already!? */
g_list_free (session->priv->windows);
g_list_free (session->priv->tool_windows);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
ephy_session_iface_init (EphyExtensionIface *iface)
{
iface->attach_window = impl_attach_window;
iface->detach_window = impl_detach_window;
}
static void
ephy_session_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
/* no writeable properties */
g_return_if_reached ();
}
static void
ephy_session_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
EphySession *session = EPHY_SESSION (object);
switch (prop_id)
{
case PROP_ACTIVE_WINDOW:
g_value_set_object (value, ephy_session_get_active_window (session));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
ephy_session_class_init (EphySessionClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
parent_class = g_type_class_peek_parent (class);
object_class->dispose = ephy_session_dispose;
object_class->finalize = ephy_session_finalize;
object_class->get_property = ephy_session_get_property;
object_class->set_property = ephy_session_set_property;
g_object_class_install_property
(object_class,
PROP_ACTIVE_WINDOW,
g_param_spec_object ("active-window",
"Active Window",
"The active window",
EPHY_TYPE_WINDOW,
G_PARAM_READABLE));
g_type_class_add_private (object_class, sizeof (EphySessionPrivate));
}
static gboolean
offer_to_resume (EphySession *session,
guint32 user_time)
{
GtkWidget *dialog;
int response;
dialog = gtk_message_dialog_new
(NULL,
GTK_DIALOG_MODAL,
GTK_MESSAGE_WARNING,
GTK_BUTTONS_NONE,
_("Recover previous browser windows and tabs?"));
gtk_message_dialog_format_secondary_text
(GTK_MESSAGE_DIALOG (dialog),
_("Epiphany appears to have exited unexpectedly the last time "
"it was run. You can recover the opened windows and tabs."));
gtk_dialog_add_button (GTK_DIALOG (dialog),
_("_Don't Recover"), GTK_RESPONSE_CANCEL);
gtk_dialog_add_button (GTK_DIALOG (dialog),
_("_Recover"), GTK_RESPONSE_ACCEPT);
gtk_window_set_title (GTK_WINDOW (dialog), _("Crash Recovery"));
gtk_window_set_icon_name (GTK_WINDOW (dialog), "web-browser");
gtk_dialog_set_default_response (GTK_DIALOG (dialog), GTK_RESPONSE_ACCEPT);
session->priv->resume_dialog = dialog;
ephy_gui_window_update_user_time (session->priv->resume_dialog,
user_time);
gtk_window_set_auto_startup_notification (FALSE);
response = gtk_dialog_run (GTK_DIALOG (dialog));
gtk_window_set_auto_startup_notification (TRUE);
gtk_widget_destroy (dialog);
session->priv->resume_dialog = NULL;
return (response == GTK_RESPONSE_ACCEPT);
}
/**
* ephy_session_autoresume:
* @session: a #EphySession
* @user_time: a timestamp, or 0
*
* Resume a crashed session when necessary (interactive)
*
* Return value: TRUE if handled; windows have actually
* been opened or the dialog from a previous instance
* has been re-presented to the user.
**/
gboolean
ephy_session_autoresume (EphySession *session,
guint32 user_time)
{
EphySessionPrivate *priv = session->priv;
char *saved_session;
gboolean retval = FALSE;
LOG ("ephy_session_autoresume");
if (priv->windows != NULL || priv->tool_windows != NULL) return FALSE;
if (priv->resume_dialog)
{
ephy_gui_window_update_user_time (session->priv->resume_dialog,
user_time);
gtk_window_present (GTK_WINDOW (priv->resume_dialog));
return TRUE;
}
saved_session = get_session_filename (SESSION_CRASHED);
if (g_file_test (saved_session, G_FILE_TEST_EXISTS)
&& offer_to_resume (session, user_time))
{
session->priv->dont_save = TRUE;
retval = ephy_session_load (session, saved_session,
user_time);
session->priv->dont_save = FALSE;
ephy_session_save (session, SESSION_CRASHED);
}
g_free (saved_session);
return retval;
}
void
ephy_session_close (EphySession *session)
{
GList *windows;
LOG ("ephy_session_close");
/* we have to ref the shell or else we may get finalised between
* destroying the windows and destroying the tool windows
*/
g_object_ref (ephy_shell);
session->priv->dont_save = TRUE;
windows = ephy_session_get_windows (session);
g_list_foreach (windows, (GFunc) gtk_widget_destroy, NULL);
g_list_free (windows);
windows = g_list_copy (session->priv->tool_windows);
g_list_foreach (windows, (GFunc) gtk_widget_destroy, NULL);
g_list_free (windows);
session->priv->dont_save = FALSE;
g_object_unref (ephy_shell);
}
static int
write_tab (xmlTextWriterPtr writer,
EphyTab *tab)
{
EphyEmbed *embed;
char *location;
int ret;
ret = xmlTextWriterStartElement (writer, (xmlChar *) "embed");
if (ret < 0) return ret;
embed = ephy_tab_get_embed (tab);
location = ephy_embed_get_location (embed, TRUE);
ret = xmlTextWriterWriteAttribute (writer, (xmlChar *) "url", (xmlChar *) location);
g_free (location);
if (ret < 0) return ret;
ret = xmlTextWriterEndElement (writer); /* embed */
return ret;
}
static int
write_window_geometry (xmlTextWriterPtr writer,
GtkWindow *window)
{
int x = 0, y = 0, width = -1, height = -1;
int ret;
/* get window geometry */
gtk_window_get_size (window, &width, &height);
gtk_window_get_position (window, &x, &y);
/* set window properties */
ret = xmlTextWriterWriteFormatAttribute (writer, (const xmlChar *) "x", "%d", x);
if (ret < 0) return ret;
ret = xmlTextWriterWriteFormatAttribute (writer, (const xmlChar *) "y", "%d", y);
if (ret < 0) return ret;
ret = xmlTextWriterWriteFormatAttribute (writer, (const xmlChar *) "width", "%d", width);
if (ret < 0) return ret;
ret = xmlTextWriterWriteFormatAttribute (writer, (const xmlChar *) "height", "%d", height);
return ret;
}
static int
write_tool_window (xmlTextWriterPtr writer,
GtkWindow *window)
{
const xmlChar *id;
int ret;
if (EPHY_IS_BOOKMARKS_EDITOR (window))
{
id = (const xmlChar *) BOOKMARKS_EDITOR_ID;
}
else if (EPHY_IS_HISTORY_WINDOW (window))
{
id = (const xmlChar *) HISTORY_WINDOW_ID;
}
else
{
g_return_val_if_reached (-1);
}
ret = xmlTextWriterStartElement (writer, (const xmlChar *) "toolwindow");
if (ret < 0) return ret;
ret = xmlTextWriterWriteAttribute (writer, (const xmlChar *) "id", id);
if (ret < 0) return ret;
ret = write_window_geometry (writer, window);
if (ret < 0) return ret;
ret = xmlTextWriterEndElement (writer); /* toolwindow */
return ret;
}
static int
write_ephy_window (xmlTextWriterPtr writer,
EphyWindow *window)
{
GList *tabs, *l;
const char *role;
int ret;
tabs = ephy_window_get_tabs (window);
/* Do not save an empty EphyWindow.
* This only happens when the window was newly opened.
*/
if (tabs == NULL) return 0;
ret = xmlTextWriterStartElement (writer, (xmlChar *) "window");
if (ret < 0) return ret;
ret = write_window_geometry (writer, GTK_WINDOW (window));
if (ret < 0) return ret;
role = gtk_window_get_role (GTK_WINDOW (window));
if (role != NULL)
{
ret = xmlTextWriterWriteAttribute (writer, "role", role);
if (ret < 0) return ret;
}
for (l = tabs; l != NULL; l = l->next)
{
EphyTab *tab = EPHY_TAB(l->data);
ret = write_tab (writer, tab);
if (ret < 0) break;
}
g_list_free (tabs);
if (ret < 0) return ret;
ret = xmlTextWriterEndElement (writer); /* window */
return ret;
}
gboolean
ephy_session_save (EphySession *session,
const char *filename)
{
xmlTextWriterPtr writer;
GList *w;
char *save_to, *tmp_file;
int ret;
if (session->priv->dont_save)
{
return TRUE;
}
LOG ("ephy_sesion_save %s", filename);
if (session->priv->windows == NULL && session->priv->tool_windows == NULL)
{
session_delete (session, filename);
return TRUE;
}
save_to = get_session_filename (filename);
tmp_file = g_strconcat (save_to, ".tmp", NULL);
/* FIXME: do we want to turn on compression? */
writer = xmlNewTextWriterFilename (tmp_file, 0);
if (writer == NULL)
{
g_free (save_to);
g_free (tmp_file);
return FALSE;
}
ret = xmlTextWriterSetIndent (writer, 1);
if (ret < 0) goto out;
ret = xmlTextWriterSetIndentString (writer, (const xmlChar *) " ");
if (ret < 0) goto out;
START_PROFILER ("Saving session")
ret = xmlTextWriterStartDocument (writer, "1.0", NULL, NULL);
if (ret < 0) goto out;
/* create and set the root node for the session */
ret = xmlTextWriterStartElement (writer, (const xmlChar *) "session");
if (ret < 0) goto out;
/* iterate through all the windows */
for (w = session->priv->windows; w != NULL && ret >= 0; w = w->next)
{
ret = write_ephy_window (writer, EPHY_WINDOW (w->data));
}
if (ret < 0) goto out;
for (w = session->priv->tool_windows; w != NULL && ret >= 0; w = w->next)
{
ret = write_tool_window (writer, GTK_WINDOW (w->data));
}
if (ret < 0) goto out;
ret = xmlTextWriterEndElement (writer); /* session */
if (ret < 0) goto out;
ret = xmlTextWriterEndDocument (writer);
out:
xmlFreeTextWriter (writer);
if (ret >= 0)
{
if (ephy_file_switch_temp_file (save_to, tmp_file) == FALSE)
{
ret = -1;
}
}
g_free (save_to);
g_free (tmp_file);
STOP_PROFILER ("Saving session")
return ret >= 0 ? TRUE : FALSE;
}
static void
parse_embed (xmlNodePtr child, EphyWindow *window)
{
while (child != NULL)
{
if (strcmp ((char *) child->name, "embed") == 0)
{
xmlChar *url;
g_return_if_fail (window != NULL);
url = xmlGetProp (child, (const xmlChar *) "url");
ephy_shell_new_tab (ephy_shell, window, NULL, (char *) url,
EPHY_NEW_TAB_IN_EXISTING_WINDOW |
EPHY_NEW_TAB_OPEN_PAGE |
EPHY_NEW_TAB_APPEND_LAST);
xmlFree (url);
}
child = child->next;
}
}
static gboolean
int_from_string (const char *string,
int *retval)
{
char *tail = NULL;
long int val;
gboolean success = FALSE;
errno = 0;
val = strtol (string, &tail, 0);
if (errno == 0 && tail != NULL && tail[0] == '\0')
{
*retval = (int) val;
success = TRUE;
}
return success;
}
static void
restore_geometry (GtkWindow *window,
xmlNodePtr node)
{
xmlChar *tmp;
int x = 0, y = 0, width = -1, height = -1;
gboolean success = TRUE;
g_return_if_fail (window != NULL);
tmp = xmlGetProp (node, (xmlChar *) "x");
success &= int_from_string ((char *) tmp, &x);
xmlFree (tmp);
tmp = xmlGetProp (node, (xmlChar *) "y");
success &= int_from_string ((char *) tmp, &y);
xmlFree (tmp);
tmp = xmlGetProp (node, (xmlChar *) "width");
success &= int_from_string ((char *) tmp, &width);
xmlFree (tmp);
tmp = xmlGetProp (node, (xmlChar *) "height");
success &= int_from_string ((char *) tmp, &height);
xmlFree (tmp);
if (success)
{
tmp = xmlGetProp (node, (xmlChar *)"role");
if (tmp != NULL)
{
gtk_window_set_role (GTK_WINDOW (window), (const char *)tmp);
xmlFree (tmp);
}
gtk_window_move (window, x, y);
gtk_window_set_default_size (window, width, height);
}
}
/*
* ephy_session_load:
* @session: a #EphySession
* @filename: the path of the source file
* @user_time: a timestamp, or 0
*
* Load a session from disk, restoring the windows and their state
*
* Return value: TRUE if at least a window has been opened
**/
gboolean
ephy_session_load (EphySession *session,
const char *filename,
guint32 user_time)
{
xmlDocPtr doc;
xmlNodePtr child;
GtkWidget *widget = NULL;
char *save_to;
LOG ("ephy_sesion_load %s", filename);
save_to = get_session_filename (filename);
doc = xmlParseFile (save_to);
g_free (save_to);
if (doc == NULL)
{
return FALSE;
}
child = xmlDocGetRootElement (doc);
/* skip the session node */
child = child->children;
while (child != NULL)
{
if (xmlStrEqual (child->name, (const xmlChar *) "window"))
{
widget = GTK_WIDGET (ephy_window_new ());
restore_geometry (GTK_WINDOW (widget), child);
parse_embed (child->children, EPHY_WINDOW (widget));
ephy_gui_window_update_user_time (widget, user_time);
gtk_widget_show (widget);
}
else if (xmlStrEqual (child->name, (const xmlChar *) "toolwindow"))
{
xmlChar *id;
id = xmlGetProp (child, (const xmlChar *) "id");
if (id && xmlStrEqual ((const xmlChar *) BOOKMARKS_EDITOR_ID, id))
{
if (!eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_BOOKMARK_EDITING))
{
widget = ephy_shell_get_bookmarks_editor (ephy_shell);
}
}
else if (id && xmlStrEqual ((const xmlChar *) HISTORY_WINDOW_ID, id))
{
if (!eel_gconf_get_boolean (CONF_LOCKDOWN_DISABLE_HISTORY))
{
widget = ephy_shell_get_history_window (ephy_shell);
}
}
restore_geometry (GTK_WINDOW (widget), child);
ephy_gui_window_update_user_time (widget, user_time);
gtk_widget_show (widget);
}
child = child->next;
}
xmlFreeDoc (doc);
return (session->priv->windows != NULL || session->priv->tool_windows != NULL);
}
/**
* ephy_session_get_windows:
* @ephy_session: the #EphySession
*
* Returns: the list of open #EphyWindow:s.
**/
GList *
ephy_session_get_windows (EphySession *session)
{
g_return_val_if_fail (EPHY_IS_SESSION (session), NULL);
return g_list_copy (session->priv->windows);
}
/**
* ephy_session_add_window:
* @ephy_session: a #EphySession
* @window: a #EphyWindow
*
* Add a tool window to the session. #EphyWindow take care of adding
* itself to session.
**/
void
ephy_session_add_window (EphySession *session,
GtkWindow *window)
{
LOG ("ephy_session_add_window %p", window);
session->priv->tool_windows =
g_list_append (session->priv->tool_windows, window);
ephy_session_save (session, SESSION_CRASHED);
}
/**
* ephy_session_remove_window:
* @session: a #EphySession.
* @window: a #GtkWindow, which must be either the bookmarks editor or the
* history window.
*
* Remove a tool window from the session.
**/
void
ephy_session_remove_window (EphySession *session,
GtkWindow *window)
{
LOG ("ephy_session_remove_window %p", window);
session->priv->tool_windows =
g_list_remove (session->priv->tool_windows, window);
ephy_session_save (session, SESSION_CRASHED);
}
/**
* ephy_session_get_active_window:
* @session: a #EphySession
*
* Get the current active browser window. Use it when you
* need to take an action (like opening an url) on
* a window but you dont have a target window.
*
* Return value: the current active browser window, or NULL of there is none.
**/
EphyWindow *
ephy_session_get_active_window (EphySession *session)
{
GList *first;
g_return_val_if_fail (EPHY_IS_SESSION (session), NULL);
first = session->priv->windows;
if (first != NULL)
{
return EPHY_WINDOW (first->data);
}
return NULL;
}