path: root/src/bookmarks/ephy-topic-action.c

/*
 *  Copyright (C) 2003 Marco Pesenti Gritti
 *
 *  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 <gtk/gtktoolitem.h>

#include "ephy-topic-action.h"
#include "ephy-node-common.h"
#include "ephy-bookmarks.h"
#include "ephy-favicon-cache.h"
#include "ephy-shell.h"
#include "ephy-debug.h"
#include "ephy-gui.h"
#include "ephy-string.h"

static void ephy_topic_action_init       (EphyTopicAction *action);
static void ephy_topic_action_class_init (EphyTopicActionClass *class);

#define EPHY_TOPIC_ACTION_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_TOPIC_ACTION, EphyTopicActionPrivate))

struct EphyTopicActionPrivate
{
    int topic_id;
};

enum
{
    PROP_0,
    PROP_TOPIC_ID
};

enum
{
    GO_LOCATION,
    LAST_SIGNAL
};

static GObjectClass *parent_class = NULL;

static guint ephy_topic_action_signals[LAST_SIGNAL] = { 0 };

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

    if (!type)
    {
        static const GTypeInfo type_info =
        {
            sizeof (EphyTopicActionClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) ephy_topic_action_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,
            sizeof (EphyTopicAction),
            0, /* n_preallocs */
            (GInstanceInitFunc) ephy_topic_action_init,
        };

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

static GtkWidget *
create_tool_item (GtkAction *action)
{
    GtkWidget *item;
    GtkWidget *button;
    GtkWidget *arrow;
    GtkWidget *hbox;
    GtkWidget *label;

    item = (* GTK_ACTION_CLASS (parent_class)->create_tool_item) (action);

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_widget_show (hbox);
    gtk_container_add (GTK_CONTAINER (item), hbox);

    button = gtk_toggle_button_new ();
    gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
    gtk_widget_show (button);
    gtk_container_add (GTK_CONTAINER (hbox), button);
    g_object_set_data (G_OBJECT (item), "button", button);

    arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
    gtk_widget_show (arrow);

    hbox = gtk_hbox_new (FALSE, 3);
    gtk_widget_show (hbox);
    gtk_container_add (GTK_CONTAINER (button), hbox);

    label = gtk_label_new (NULL);
    gtk_widget_show (label);
    gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (hbox), arrow, TRUE, TRUE, 0);
    g_object_set_data (G_OBJECT (item), "label", label);

    return item;
}

static void
menu_deactivate_cb (GtkMenuShell *ms, GtkWidget *button)
{
    gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), FALSE);
    gtk_button_released (GTK_BUTTON (button));
}

static void
menu_activate_cb (GtkWidget *item, GtkAction *action)
{
    EphyNode *node;
    const char *location;

    node = g_object_get_data (G_OBJECT (item), "node");
    location = ephy_node_get_property_string
        (node, EPHY_NODE_BMK_PROP_LOCATION);
    g_signal_emit (action, ephy_topic_action_signals[GO_LOCATION],
               0, location);
}

static void
ephy_topic_action_sync_label (GtkAction *action, GParamSpec *pspec, GtkWidget *proxy)
{
    GtkWidget *label = NULL;
    GValue value = { 0, };
    const char *label_text;

    g_value_init (&value, G_TYPE_STRING);
    g_object_get_property (G_OBJECT (action), "label", &value);

    label_text = g_value_get_string (&value);

    if (GTK_IS_TOOL_ITEM (proxy))
    {
        label = GTK_WIDGET (g_object_get_data (G_OBJECT (proxy), "label"));
    }
    else if (GTK_IS_MENU_ITEM (proxy))
    {
        label = GTK_BIN (proxy)->child;
    }
    else
    {
        g_warning ("Unknown widget");
        return;
    }

    g_return_if_fail (label != NULL);

    if (label_text)
    {
        gtk_label_set_label (GTK_LABEL (label), label_text);
    }

    g_value_unset (&value);
}

static int
sort_bookmarks (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;
}

#define MAX_LENGTH 32

static void
append_bookmarks_menu (EphyTopicAction *action, GtkWidget *menu, EphyNode *node, gboolean show_empty)
{
        EphyFaviconCache *cache;
    GtkWidget *item;
    GPtrArray *children;

        cache = EPHY_FAVICON_CACHE
        (ephy_embed_shell_get_favicon_cache (EPHY_EMBED_SHELL (ephy_shell)));

    children = ephy_node_get_children (node);

    if (children->len < 1 && show_empty)
    {
        /* This is the adjective, not the verb */
        item = gtk_menu_item_new_with_label (_("Empty"));
        gtk_widget_set_sensitive (item, FALSE);
        gtk_widget_show (item);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
    }
    else
    {
        GList *node_list = NULL, *l;
        int i;

        for (i = 0; i < children->len; ++i)
        {
            node_list = g_list_prepend (node_list,
                           g_ptr_array_index (children, i));
        }

        node_list = g_list_sort (node_list, (GCompareFunc)sort_bookmarks);

        for (l = g_list_first (node_list); l != NULL; l = g_list_next (l))
        {
            EphyNode *kid;
            const char *icon_location;
            const char *title;
            char *title_short;

            kid = (EphyNode*)l->data;

            icon_location = ephy_node_get_property_string
                (kid, EPHY_NODE_BMK_PROP_ICON);
            title = ephy_node_get_property_string
                (kid, EPHY_NODE_BMK_PROP_TITLE);
            if (title == NULL) continue;
            title_short = ephy_string_shorten (title, MAX_LENGTH);
            LOG ("Create menu for bookmark %s", title_short)

            item = gtk_image_menu_item_new_with_label (title_short);
            if (icon_location)
            {
                GdkPixbuf *icon;
                GtkWidget *image;

                icon = ephy_favicon_cache_get (cache, icon_location);
                if (icon != NULL)
                {
                    image = gtk_image_new_from_pixbuf (icon);
                    gtk_widget_show (image);
                    gtk_image_menu_item_set_image
                        (GTK_IMAGE_MENU_ITEM (item), image);
                    g_object_unref (icon);
                }
            }

            g_object_set_data (G_OBJECT (item), "node", kid);
            g_signal_connect (item, "activate",
                      G_CALLBACK (menu_activate_cb), action);
            gtk_widget_show (item);
            gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

            g_free (title_short);
        }

        g_list_free (node_list);
    }

    ephy_node_thaw (node);
}

static GtkWidget *
build_bookmarks_menu (EphyTopicAction *action, EphyNode *node)
{
    GtkWidget *menu;

    menu = gtk_menu_new ();

    append_bookmarks_menu (action, menu, node, TRUE);

    return menu;
}

static int
sort_topics (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_KEYWORD_PROP_NAME);
    title2 = ephy_node_get_property_string (node_b, EPHY_NODE_KEYWORD_PROP_NAME);
                                                                                                                      
    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 GtkWidget *
build_topics_menu (EphyTopicAction *action, EphyNode *node)
{
    GtkWidget *menu, *item, *label;
    GPtrArray *children;
    int i;
    EphyBookmarks *bookmarks;
    EphyNode *all, *uncategorized;
    EphyNodePriority priority;
    GList *node_list = NULL, *l = NULL;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    all = ephy_bookmarks_get_bookmarks (bookmarks);

    menu = gtk_menu_new ();

    children = ephy_node_get_children (node);

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

        kid = g_ptr_array_index (children, i);
        priority = ephy_node_get_property_int
            (kid, EPHY_NODE_KEYWORD_PROP_PRIORITY);
        if (priority == EPHY_NODE_NORMAL_PRIORITY)
        {
            node_list = g_list_prepend (node_list, kid);
        }
    }

    node_list = g_list_sort (node_list, (GCompareFunc)sort_topics);

    for (l = g_list_first (node_list); l != NULL; l = g_list_next (l))
    {
        EphyNode *kid;
        const char *title;
        GtkWidget *bmk_menu;

        kid = (EphyNode*)l->data;
        if (kid == all) continue;

        title = ephy_node_get_property_string
            (kid, EPHY_NODE_KEYWORD_PROP_NAME);
        LOG ("Create menu for topic %s", title);

        item = gtk_image_menu_item_new_with_label (title);

        label = gtk_bin_get_child (GTK_BIN (item));
        gtk_label_set_use_markup  (GTK_LABEL (label), TRUE);

        gtk_widget_show (item);
        gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

        bmk_menu = build_bookmarks_menu (action, kid);
        gtk_widget_show (bmk_menu);
        gtk_menu_item_set_submenu (GTK_MENU_ITEM (item), bmk_menu);
    }
    ephy_node_thaw (node);
    g_list_free (node_list);

    uncategorized = ephy_bookmarks_get_not_categorized (bookmarks);
    append_bookmarks_menu (action, menu, uncategorized, FALSE);

    return menu;
}

static GtkWidget *
build_menu (EphyTopicAction *action)
{
    EphyNode *node;
    EphyBookmarks *bookmarks;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);

    if (action->priv->topic_id == BOOKMARKS_NODE_ID)
    {
        LOG ("Build all bookmarks crap menu")

        node = ephy_bookmarks_get_keywords (bookmarks);
        return build_topics_menu (action, node);
    }
    else
    {
        node = ephy_bookmarks_get_from_id (bookmarks, action->priv->topic_id);
        return build_bookmarks_menu (action, node);
    }
}

static void
button_toggled_cb (GtkWidget *button,
           EphyTopicAction *action)
{
    GtkWidget *menu;

    if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (button)))
    {
        menu = build_menu (action);
        g_signal_connect (menu, "deactivate",
                  G_CALLBACK (menu_deactivate_cb), button);
        gtk_menu_popup (GTK_MENU (menu), NULL, NULL,
                ephy_gui_menu_position_under_widget,
                button, 1, gtk_get_current_event_time ());
    }
}

static void
button_pressed_cb (GtkWidget *button,
           EphyTopicAction *action)
{
     gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
}

static GtkWidget *
create_menu_item (GtkAction *action)
{
    GtkWidget *menu, *menu_item;
    GValue value = { 0, };
    const char *tmp;
    char *label_text;

    g_value_init (&value, G_TYPE_STRING);
    g_object_get_property (G_OBJECT (action), "label", &value);

    tmp = g_value_get_string (&value);
    label_text = ephy_string_double_underscores (tmp);

    LOG ("create_menu_item action %p", action)

    menu_item = gtk_menu_item_new_with_label (label_text);

    g_value_unset (&value);
    g_free (label_text);

    menu = build_menu (EPHY_TOPIC_ACTION (action));
    gtk_widget_show (menu);

    gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu);

    return menu_item;
}

static gboolean
create_menu_proxy (GtkToolItem *item, GtkAction *action)
{
    GtkWidget *menu_item;
    char *menu_id;

    LOG ("create_menu_proxy item %p, action %p", item, action)

    menu_item = create_menu_item (action);

    menu_id = g_strdup_printf ("ephy-topic-action-%d-menu-id",
                   EPHY_TOPIC_ACTION (action)->priv->topic_id);

    gtk_tool_item_set_proxy_menu_item (item, menu_id, menu_item);

    g_free (menu_id);

    return TRUE;
}

static void
connect_proxy (GtkAction *action, GtkWidget *proxy)
{
    GtkWidget *button;

    LOG ("connect_proxy action %p, proxy %p", action, proxy)

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

    ephy_topic_action_sync_label (action, NULL, proxy);
    g_signal_connect_object (action, "notify::label",
                     G_CALLBACK (ephy_topic_action_sync_label), proxy, 0);

    if (GTK_IS_TOOL_ITEM (proxy))
    {
        g_signal_connect_object (proxy, "create_menu_proxy",
                     G_CALLBACK (create_menu_proxy),
                     action, 0);

        button = GTK_WIDGET (g_object_get_data (G_OBJECT (proxy), "button"));
        g_signal_connect (button, "toggled",
                  G_CALLBACK (button_toggled_cb), action);

        /* We want the menu to popup up on mouse down */
        g_signal_connect (button, "pressed",
                  G_CALLBACK (button_pressed_cb), action);
    }
}

static void
ephy_topic_action_set_property (GObject *object,
                                guint prop_id,
                                const GValue *value,
                                GParamSpec *pspec)
{
    EphyTopicAction *bmk;

    bmk = EPHY_TOPIC_ACTION (object);

    switch (prop_id)
    {
        case PROP_TOPIC_ID:
            bmk->priv->topic_id = g_value_get_int (value);
            break;
    }
}

static void
ephy_topic_action_get_property (GObject *object,
                                   guint prop_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    EphyTopicAction *bmk;

    bmk = EPHY_TOPIC_ACTION (object);

    switch (prop_id)
    {
        case PROP_TOPIC_ID:
            g_value_set_boolean (value, bmk->priv->topic_id);
            break;
    }
}

static void
ephy_topic_action_class_init (EphyTopicActionClass *class)
{
    GObjectClass *object_class = G_OBJECT_CLASS (class);
    GtkActionClass *action_class = GTK_ACTION_CLASS (class);

    parent_class = g_type_class_peek_parent (class);

    action_class->toolbar_item_type = GTK_TYPE_TOOL_ITEM;
    action_class->create_tool_item = create_tool_item;
    action_class->create_menu_item = create_menu_item;
    action_class->connect_proxy = connect_proxy;

    object_class->set_property = ephy_topic_action_set_property;
    object_class->get_property = ephy_topic_action_get_property;

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

    g_object_class_install_property (object_class,
                                         PROP_TOPIC_ID,
                                         g_param_spec_int ("topic_id",
                                                           "topic_id",
                                                           "topic_id",
                               0,
                               G_MAXINT,
                                                           0,
                                                           G_PARAM_READWRITE));

    g_type_class_add_private (object_class, sizeof(EphyTopicActionPrivate));
}

static void
sync_topic_properties (GtkAction *action, EphyNode *bmk)
{
    const char *tmp;
    char *title;
    int priority;

    priority = ephy_node_get_property_int 
        (bmk, EPHY_NODE_KEYWORD_PROP_PRIORITY);

    if (priority == EPHY_NODE_ALL_PRIORITY)
    {
        tmp = _("Bookmarks");
    }
    else
    {
        tmp = ephy_node_get_property_string
                    (bmk, EPHY_NODE_KEYWORD_PROP_NAME);
    }

    title = ephy_string_double_underscores (tmp);

    g_object_set (action, "label", title, NULL);

    g_free (title);
}

static void
topic_child_changed_cb (EphyNode *node, EphyNode *child, GtkAction *action)
{
    gulong id;

    id = EPHY_TOPIC_ACTION (action)->priv->topic_id;

    if (id == ephy_node_get_id (child))
    {
        sync_topic_properties (action, child);
    }
}

static void
ephy_topic_action_init (EphyTopicAction *action)
{
    EphyBookmarks *bookmarks;
    EphyNode *node;

    action->priv = EPHY_TOPIC_ACTION_GET_PRIVATE (action);

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);
    node = ephy_bookmarks_get_keywords (bookmarks);
    ephy_node_signal_connect_object (node, EPHY_NODE_CHILD_CHANGED,
                         (EphyNodeCallback) topic_child_changed_cb,
                         G_OBJECT (action));
}

GtkAction *
ephy_topic_action_new (const char *name, guint id)
{
    EphyNode *bmk;
    EphyBookmarks *bookmarks;
    GtkAction *action;

    bookmarks = ephy_shell_get_bookmarks (ephy_shell);

    bmk = ephy_bookmarks_get_from_id (bookmarks, id);
    g_return_val_if_fail (bmk != NULL, NULL);

    action = GTK_ACTION (g_object_new (EPHY_TYPE_TOPIC_ACTION,
                       "topic_id", id,
                       "name", name,
                       NULL));

    sync_topic_properties (action, bmk);

    return action;
}