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 "ephy-node-common.h"
#include "ephy-topic-action.h"
#include "ephy-bookmarks.h"
#include "ephy-shell.h"
#include "eggtoolitem.h"
#include "ephy-debug.h"
#include "ephy-gui.h"

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

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 (EGG_TYPE_ACTION,
                           "EphyTopicAction",
                           &type_info, 0);
    }
    return type;
}

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

    item = (* EGG_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, EggAction *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 (EggAction *action, GParamSpec *pspec, GtkWidget *proxy)
{
    GtkLabel *label;

    LOG ("Set bookmark action proxy label to %s", action->label)

    label = GTK_LABEL (g_object_get_data (G_OBJECT (proxy), "label"));
    g_return_if_fail (label != NULL);

    gtk_label_set_label (label, action->label);
}

static int
sort_bookmarks (gconstpointer a, gconstpointer b)
{
    EphyNode *node_a = (EphyNode *)a;
    EphyNode *node_b = (EphyNode *)b;
    char *str_a = NULL;
    char *str_b = NULL;
    int retval;

    str_a = g_utf8_casefold (ephy_node_get_property_string (node_a, EPHY_NODE_BMK_PROP_TITLE),
                 -1);
    str_b = g_utf8_casefold (ephy_node_get_property_string (node_b, EPHY_NODE_BMK_PROP_TITLE),
                     -1);
    retval = g_utf8_collate (str_a, str_b);
    g_free (str_a);
    g_free (str_b);
    
    return retval;
}

static GtkWidget *
build_bookmarks_menu (EphyTopicAction *action, EphyNode *node)
{
        EphyFaviconCache *cache;
    GtkWidget *menu, *item;
    GPtrArray *children;

    menu = gtk_menu_new ();

        cache = ephy_embed_shell_get_favicon_cache
               (EPHY_EMBED_SHELL (ephy_shell));

    children = ephy_node_get_children (node);

    if (children->len < 1)
    {
        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;
    
            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;
            LOG ("Create menu for bookmark %s", title)
    
            item = gtk_image_menu_item_new_with_label (title);
            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_list_free (node_list);
    }
    
    ephy_node_thaw (node);

    return menu;
}

static int
sort_topics (gconstpointer a, gconstpointer b)
{
    EphyNode *node_a = (EphyNode *)a;
    EphyNode *node_b = (EphyNode *)b;
    EphyNodePriority priority_a, priority_b;
    char *str_a = NULL;
    char *str_b = NULL;
    int retval;

    priority_a = ephy_node_get_property_int (node_a, EPHY_NODE_KEYWORD_PROP_PRIORITY);  
    priority_b = ephy_node_get_property_int (node_b, EPHY_NODE_KEYWORD_PROP_PRIORITY);  

    if (priority_a < priority_b)
    {
        retval = -1;
    }
    else if (priority_a > priority_b)
    {
        retval = 1;
    }
    else
    {
        str_a = g_utf8_casefold (ephy_node_get_property_string (node_a, EPHY_NODE_KEYWORD_PROP_NAME),
                     -1);
        str_b = g_utf8_casefold (ephy_node_get_property_string (node_b, EPHY_NODE_KEYWORD_PROP_NAME),
                         -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;
    EphyNodePriority priority;
    char *markup_title = NULL;
    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)
    {
        node_list = g_list_prepend (node_list,
                       g_ptr_array_index (children, i));
    }
    
    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);
        priority = ephy_node_get_property_int 
            (kid, EPHY_NODE_KEYWORD_PROP_PRIORITY);
        LOG ("Create menu for topic %s", title);

        if (priority == EPHY_NODE_ALL_PRIORITY ||
            priority == EPHY_NODE_SPECIAL_PRIORITY)
        {
            markup_title = g_strconcat ("<b>", title, "</b>", NULL);
        }
        else
        {
            markup_title = g_strdup (title);
        }
        item = gtk_image_menu_item_new_with_label (markup_title);
        g_free (markup_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);

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

    (* EGG_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);

    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_finalize (GObject *object)
{
        EphyTopicAction *eba;

    g_return_if_fail (EPHY_IS_TOPIC_ACTION (object));

    eba = EPHY_TOPIC_ACTION (object);

        g_return_if_fail (eba->priv != NULL);

        g_free (eba->priv);

    LOG ("Bookmark action finalized")

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

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

    parent_class = g_type_class_peek_parent (class);
    action_class = EGG_ACTION_CLASS (class);

    action_class->toolbar_item_type = EGG_TYPE_TOOL_ITEM;
    action_class->create_tool_item = create_tool_item;
    action_class->connect_proxy = connect_proxy;

    object_class->finalize = ephy_topic_action_finalize;
    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));
}

static void
sync_topic_properties (EggAction *action, EphyNode *bmk)
{
    const char *title;

    title = ephy_node_get_property_string
        (bmk, EPHY_NODE_KEYWORD_PROP_NAME);

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

static void
topic_child_changed_cb (EphyNode *node, EphyNode *child, EggAction *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 = g_new0 (EphyTopicActionPrivate, 1);

    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));
}

EggAction *
ephy_topic_action_new (const char *name, guint id)
{
    EphyNode *bmk;
    EphyBookmarks *bookmarks;
    EggAction *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 = EGG_ACTION (g_object_new (EPHY_TYPE_TOPIC_ACTION,
                       "topic_id", id,
                       "name", name,
                       NULL));

    sync_topic_properties (action, bmk);

    return action;
}