path: root/src/ephy-location-action.c

/*
 *  Copyright (C) 2003 Marco Pesenti Gritti
 *  Copyright (C) 2003 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.
 *
 *  $Id$
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "ephy-location-action.h"
#include "ephy-location-entry.h"
#include "ephy-shell.h"
#include "ephy-completion-model.h"
#include "ephy-debug.h"

#include <gtk/gtkentry.h>
#include <gtk/gtkentrycompletion.h>

#define EPHY_LOCATION_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_LOCATION_ACTION, EphyLocationActionPrivate))

struct _EphyLocationActionPrivate
{
    GList *actions;
    char *address;
    gboolean editable;
    EphyNode *smart_bmks;
    EphyBookmarks *bookmarks;
};

static void ephy_location_action_init       (EphyLocationAction *action);
static void ephy_location_action_class_init (EphyLocationActionClass *class);
static void ephy_location_action_finalize   (GObject *object);
static void user_changed_cb         (GtkWidget *proxy,
                         EphyLocationAction *action);
static void sync_address            (GtkAction *action,
                         GParamSpec *pspec,
                         GtkWidget *proxy);

enum
{
    PROP_0,
    PROP_ADDRESS,
    PROP_EDITABLE
};

enum
{
    GO_LOCATION,
    LAST_SIGNAL
};

static GObjectClass *parent_class = NULL;

static guint signals[LAST_SIGNAL] = { 0 };

GType
ephy_location_action_get_type (void)
{
    static GType type = 0;

    if (!type)
    {
        static const GTypeInfo type_info =
        {
            sizeof (EphyLocationActionClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) ephy_location_action_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,
            sizeof (EphyLocationAction),
            0, /* n_preallocs */
            (GInstanceInitFunc) ephy_location_action_init,
        };

        type = g_type_register_static (GTK_TYPE_ACTION,
                           "EphyLocationAction",
                           &type_info, 0);
    }
    return type;
}

static void
action_activated_cb (GtkEntryCompletion *completion,
                     gint index,
             EphyLocationAction *action)
{
    GtkWidget *entry;
    char *content;

    entry = gtk_entry_completion_get_entry (completion);
    content = gtk_editable_get_chars (GTK_EDITABLE (entry), 0, -1);
    if (content)
    {
        EphyNode *node;
        const char *smart_url;
        char *url;

        node = (EphyNode *)g_list_nth_data (action->priv->actions, index);
        smart_url = ephy_node_get_property_string
                    (node, EPHY_NODE_BMK_PROP_LOCATION);
        g_return_if_fail (smart_url != NULL);

        url = ephy_bookmarks_solve_smart_url
            (action->priv->bookmarks, smart_url, content);
        g_return_if_fail (url != NULL);

        g_signal_emit (action, signals[GO_LOCATION], 0, url);

        g_free (url);
        g_free (content);
    }
}

static void
location_url_activate_cb (GtkEntry *entry,
              EphyLocationAction *action)
{
    const char *content;

    content = gtk_entry_get_text (entry);
    if (content)
    {
        g_signal_emit (action, signals[GO_LOCATION], 0, content);
    }
}

static void
user_changed_cb (GtkWidget *proxy, EphyLocationAction *action)
{
    const char *address;

    address = ephy_location_entry_get_location (EPHY_LOCATION_ENTRY (proxy));

    LOG ("user_changed_cb, new address %s", address)

    g_signal_handlers_block_by_func (action, G_CALLBACK (sync_address), proxy);
    ephy_location_action_set_address (action, address);
    g_signal_handlers_unblock_by_func (action, G_CALLBACK (sync_address), proxy);
}

static void
sync_address (GtkAction *act, GParamSpec *pspec, GtkWidget *proxy)
{
    EphyLocationAction *action = EPHY_LOCATION_ACTION (act);

    LOG ("sync_address")

    g_return_if_fail (EPHY_IS_LOCATION_ENTRY (proxy));
    g_signal_handlers_block_by_func (proxy, G_CALLBACK (user_changed_cb), action);
    ephy_location_entry_set_location (EPHY_LOCATION_ENTRY (proxy),
                      action->priv->address);
    g_signal_handlers_unblock_by_func (proxy, G_CALLBACK (user_changed_cb), action);
}

static void
sync_editable (GtkAction *act, GParamSpec *pspec, GtkWidget *proxy)
{
    EphyLocationAction *action = EPHY_LOCATION_ACTION (act);
    GtkWidget *entry;

    entry = GTK_BIN (proxy)->child;
    gtk_editable_set_editable (GTK_EDITABLE (entry), action->priv->editable);
}

static void
remove_completion_actions (GtkAction *action, GtkWidget *proxy)
{
    GtkWidget *entry;
    GtkEntryCompletion *completion;
    EphyLocationAction *la = EPHY_LOCATION_ACTION (action);
    GList *l;

    entry = GTK_BIN (proxy)->child;
    completion = gtk_entry_get_completion (GTK_ENTRY (entry));

    for (l = la->priv->actions; l != NULL; l = l->next)
    {
        gtk_entry_completion_delete_action (completion, 0);
    }

    g_signal_handlers_disconnect_by_func
            (completion, G_CALLBACK (action_activated_cb), la);
}

static void
add_completion_actions (GtkAction *action, GtkWidget *proxy)
{
    GtkWidget *entry;
    GtkEntryCompletion *completion;
    EphyLocationAction *la = EPHY_LOCATION_ACTION (action);
    GList *l;

    entry = GTK_BIN (proxy)->child;
    completion = gtk_entry_get_completion (GTK_ENTRY (entry));

    for (l = la->priv->actions; l != NULL; l = l->next)
    {
        EphyNode *bmk = l->data;
        const char *title;
        int index;

        index = g_list_position (la->priv->actions, l);
        title = ephy_node_get_property_string
                    (bmk, EPHY_NODE_BMK_PROP_TITLE);
        gtk_entry_completion_insert_action_text (completion, index, (char*)title);
    }

    g_signal_connect (completion, "action_activated",
              G_CALLBACK (action_activated_cb), la);
}

static gboolean
create_menu_proxy_cb (GtkToolItem *tool_item, 
              GtkAction *action)
{
    gtk_tool_item_set_proxy_menu_item
        (tool_item, "ephy-location-action-menu-item", NULL);

    return TRUE;
}

static void
connect_proxy (GtkAction *action, GtkWidget *proxy)
{
    LOG ("Connect proxy")

    if (EPHY_IS_LOCATION_ENTRY (proxy))
    {
        EphyCompletionModel *model;
        GtkWidget *entry;

        model = ephy_completion_model_new ();
        ephy_location_entry_set_completion (EPHY_LOCATION_ENTRY (proxy),
                            GTK_TREE_MODEL (model),
                            EPHY_COMPLETION_TEXT_COL,
                            EPHY_COMPLETION_ACTION_COL,
                            EPHY_COMPLETION_KEYWORDS_COL,
                            EPHY_COMPLETION_RELEVANCE_COL);

        add_completion_actions (action, proxy);

        sync_address (action, NULL, proxy);
        g_signal_connect_object (action, "notify::address",
                     G_CALLBACK (sync_address), proxy, 0);
        sync_editable (action, NULL, proxy);
        g_signal_connect_object (action, "notify::editable",
                     G_CALLBACK (sync_editable), proxy, 0);

        entry = GTK_BIN (proxy)->child;
        g_signal_connect_object (entry, "activate",
                     G_CALLBACK (location_url_activate_cb),
                     action, 0);
        g_signal_connect_object (proxy, "user_changed",
                     G_CALLBACK (user_changed_cb), action, 0);
    }

    /* FIXME: when porting to gtk+ 2.6, use "visible-overflown" 
     * property on GtkAction instead.
     * we need to connect to this before chaining up, since gtkaction's
     * connect_proxy connects a routine there which uses create_menu_item
     * method to generate a menu proxy (and create_menu_item CANNOT return
     * NULL. See bug #133446.
     */
    g_signal_connect_object (proxy, "create_menu_proxy",
                 G_CALLBACK (create_menu_proxy_cb),
                 action, 0);

    (* GTK_ACTION_CLASS (parent_class)->connect_proxy) (action, proxy);
}

static void
disconnect_proxy (GtkAction *action, GtkWidget *proxy)
{
    LOG ("Disconnect proxy")

    if (EPHY_IS_LOCATION_ENTRY (proxy))
    {
        GtkWidget *entry;

        entry = GTK_BIN (proxy)->child;

        g_signal_handlers_disconnect_by_func
            (action, G_CALLBACK (sync_address), proxy);

        g_signal_handlers_disconnect_by_func
            (entry, G_CALLBACK (location_url_activate_cb), action);

        g_signal_handlers_disconnect_by_func
            (proxy, G_CALLBACK (user_changed_cb), action);
    }

    (* GTK_ACTION_CLASS (parent_class)->disconnect_proxy) (action, proxy);
}

static void
ephy_location_action_set_property (GObject *object,
                   guint prop_id,
                   const GValue *value,
                   GParamSpec *pspec)
{
    EphyLocationAction *action = EPHY_LOCATION_ACTION (object);

    switch (prop_id)
    {
        case PROP_ADDRESS:
            ephy_location_action_set_address (action, g_value_get_string (value));
            break;
        case PROP_EDITABLE:
            action->priv->editable = g_value_get_boolean (value);
            break;
    }
}

static void
ephy_location_action_get_property (GObject *object,
                   guint prop_id,
                   GValue *value,
                   GParamSpec *pspec)
{
    EphyLocationAction *action = EPHY_LOCATION_ACTION (object);

    switch (prop_id)
    {
        case PROP_ADDRESS:
            g_value_set_string (value, ephy_location_action_get_address (action));
            break;
        case PROP_EDITABLE:
            g_value_set_boolean (value, action->priv->editable);
            break;
    }
}

static void
ephy_location_action_class_init (EphyLocationActionClass *class)
{
    GObjectClass *object_class = G_OBJECT_CLASS (class);
    GtkActionClass *action_class = GTK_ACTION_CLASS (class);

    parent_class = g_type_class_peek_parent (class);

    object_class->finalize = ephy_location_action_finalize;
    object_class->get_property = ephy_location_action_get_property;
    object_class->set_property = ephy_location_action_set_property;

    action_class->toolbar_item_type = EPHY_TYPE_LOCATION_ENTRY;
    action_class->connect_proxy = connect_proxy;
    action_class->disconnect_proxy = disconnect_proxy;

    signals[GO_LOCATION] =
                g_signal_new ("go_location",
                              G_OBJECT_CLASS_TYPE (object_class),
                              G_SIGNAL_RUN_FIRST,
                              G_STRUCT_OFFSET (EphyLocationActionClass, go_location),
                              NULL, NULL,
                              g_cclosure_marshal_VOID__STRING,
                              G_TYPE_NONE,
                              1,
                  G_TYPE_STRING);

    g_object_class_install_property (object_class,
                     PROP_ADDRESS,
                     g_param_spec_string ("address",
                                  "Address",
                                  "The address",
                                  "",
                                  G_PARAM_READWRITE));
    g_object_class_install_property (object_class,
                     PROP_EDITABLE,
                     g_param_spec_boolean ("editable",
                                   "Editable",
                                   "Editable",
                                   TRUE,
                                   G_PARAM_READWRITE));


    g_type_class_add_private (object_class, sizeof (EphyLocationActionPrivate));
}

static int
compare_actions (gconstpointer a,
         gconstpointer b)
{
        EphyNode *node_a = (EphyNode *)a;
        EphyNode *node_b = (EphyNode *)b;
    const char *title1, *title2;
    int retval;

    title1 = ephy_node_get_property_string (node_a, EPHY_NODE_BMK_PROP_TITLE);
    title2 = ephy_node_get_property_string (node_b, EPHY_NODE_BMK_PROP_TITLE);

    if (title1 == NULL)
    {
        retval = -1;
    }
    else if (title2 == NULL)
    {
        retval = 1;
    }
    else
    {
        char *str_a, *str_b;

        str_a = g_utf8_casefold (title1, -1);
        str_b = g_utf8_casefold (title2, -1);
        retval = g_utf8_collate (str_a, str_b);
        g_free (str_a);
        g_free (str_b);
    }

    return retval;
}

static void
init_actions_list (EphyLocationAction *action)
{
    GPtrArray *children;
    int i;

    children = ephy_node_get_children (action->priv->smart_bmks);
    for (i = 0; i < children->len; i++)
    {
        EphyNode *kid;

        kid = g_ptr_array_index (children, i);

        action->priv->actions = g_list_prepend
            (action->priv->actions, kid);
    }

    action->priv->actions =
        g_list_sort (action->priv->actions, (GCompareFunc) compare_actions);
}

static void
update_actions_list (EphyLocationAction *la)
{
    GSList *l;
    GtkAction *action = GTK_ACTION (la);

    l = gtk_action_get_proxies (action);
    for (; l != NULL; l = l->next)
    {
        remove_completion_actions (action, GTK_WIDGET (l->data));
    }

    g_list_free (la->priv->actions);
    la->priv->actions = NULL;
    init_actions_list (la);

    l = gtk_action_get_proxies (action);
    for (; l != NULL; l = l->next)
    {
        add_completion_actions (action, l->data);
    }
}

static void
actions_child_removed_cb (EphyNode *node,
                  EphyNode *child,
                  guint old_index,
                  EphyLocationAction *action)
{
    update_actions_list (action);
}

static void
actions_child_added_cb (EphyNode *node,
                EphyNode *child,
                EphyLocationAction *action)
{
    update_actions_list (action);
}

static void
actions_child_changed_cb (EphyNode *node,
                  EphyNode *child,
              guint property_id,
                  EphyLocationAction *action)
{
    update_actions_list (action);
}

static void
ephy_location_action_init (EphyLocationAction *action)
{
    action->priv = EPHY_LOCATION_ACTION_GET_PRIVATE (action);

    action->priv->address = g_strdup ("");
    action->priv->actions = NULL;
    action->priv->editable = TRUE;
    action->priv->bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    action->priv->smart_bmks = ephy_bookmarks_get_smart_bookmarks
        (action->priv->bookmarks);

    init_actions_list (action);

    ephy_node_signal_connect_object (action->priv->smart_bmks,
                             EPHY_NODE_CHILD_ADDED,
                             (EphyNodeCallback)actions_child_added_cb,
                             G_OBJECT (action));
    ephy_node_signal_connect_object (action->priv->smart_bmks,
                             EPHY_NODE_CHILD_REMOVED,
                             (EphyNodeCallback)actions_child_removed_cb,
                             G_OBJECT (action));
    ephy_node_signal_connect_object (action->priv->smart_bmks,
                             EPHY_NODE_CHILD_CHANGED,
                             (EphyNodeCallback)actions_child_changed_cb,
                             G_OBJECT (action));
}

static void
ephy_location_action_finalize (GObject *object)
{
    EphyLocationAction *action = EPHY_LOCATION_ACTION (object);

    g_list_free (action->priv->actions);

    g_free (action->priv->address);

    G_OBJECT_CLASS (parent_class)->finalize (object);
}

const char *
ephy_location_action_get_address (EphyLocationAction *action)
{
    g_return_val_if_fail (EPHY_IS_LOCATION_ACTION (action), "");

    return action->priv->address;
}

void
ephy_location_action_set_address (EphyLocationAction *action,
                  const char *address)
{
    g_return_if_fail (EPHY_IS_LOCATION_ACTION (action));

    LOG ("set_address %s", address)

    g_free (action->priv->address);
    action->priv->address = g_strdup (address);
    g_object_notify (G_OBJECT (action), "address");
}