/*
* Copyright © 2002-2004 Marco Pesenti Gritti <mpeseng@tin.it>
* Copyright © 2005 Peter Harvey <pah06@uow.edu.au>
*
* 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 of the License, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $Id$
*/
#include "config.h"
#include "ephy-topics-palette.h"
#include "ephy-nodes-cover.h"
#include "ephy-node-common.h"
#include "ephy-bookmarks.h"
#include "ephy-debug.h"
#include <glib/gi18n.h>
#include <gtk/gtktreeselection.h>
#include <gdk/gdkkeysyms.h>
static void ephy_topics_palette_class_init (EphyTopicsPaletteClass *klass);
static void ephy_topics_palette_init (EphyTopicsPalette *editor);
#define EPHY_TOPICS_PALETTE_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EPHY_TYPE_TOPICS_PALETTE, EphyTopicsPalettePrivate))
struct _EphyTopicsPalettePrivate
{
EphyBookmarks *bookmarks;
EphyNode *bookmark;
GtkListStore *store;
GtkTreeViewColumn *column;
int mode;
};
enum
{
PROP_0,
PROP_BOOKMARKS,
PROP_BOOKMARK,
PROP_MODE
};
enum
{
COLUMN_TITLE,
COLUMN_NODE,
COLUMN_SELECTED,
COLUMNS
};
enum
{
MODE_GROUPED,
MODE_LIST,
MODES
};
G_DEFINE_TYPE (EphyTopicsPalette, ephy_topics_palette, GTK_TYPE_TREE_VIEW)
static void
append_topics (EphyTopicsPalette *palette,
GtkTreeIter *iter,
gboolean *valid,
gboolean *first,
GPtrArray *topics)
{
EphyNode *node;
const char *title;
gint i;
if (topics->len == 0)
{
return;
}
if (!*first)
{
if (!*valid) gtk_list_store_append (palette->priv->store, iter);
gtk_list_store_set (palette->priv->store, iter, COLUMN_TITLE, NULL,
COLUMN_NODE, NULL, -1);
*valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (palette->priv->store), iter);
}
for (i = 0; i < topics->len ; i++)
{
node = g_ptr_array_index (topics, i);
title = ephy_node_get_property_string (node, EPHY_NODE_KEYWORD_PROP_NAME);
if (!*valid) gtk_list_store_append (palette->priv->store, iter);
gtk_list_store_set (palette->priv->store, iter, COLUMN_TITLE, title,
COLUMN_NODE, node, COLUMN_SELECTED,
ephy_node_has_child (node, palette->priv->bookmark), -1);
*valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (palette->priv->store), iter);
*first = FALSE;
}
}
static void
update_list (EphyTopicsPalette *palette)
{
GPtrArray *children, *bookmarks, *topics;
EphyNode *node;
GtkTreeIter iter;
gint i, priority;
gboolean valid, first;
gtk_widget_queue_draw (GTK_WIDGET (palette));
valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (palette->priv->store), &iter);
first = TRUE;
if (palette->priv->mode == MODE_LIST)
{
/* Allocate and fill the suggestions array. */
node = ephy_bookmarks_get_keywords (palette->priv->bookmarks);
children = ephy_node_get_children (node);
topics = g_ptr_array_sized_new (children->len);
for (i = 0; i < children->len; i++)
{
node = g_ptr_array_index (children, i);
priority = ephy_node_get_property_int (node, EPHY_NODE_KEYWORD_PROP_PRIORITY);
if (priority != EPHY_NODE_NORMAL_PRIORITY)
continue;
g_ptr_array_add (topics, node);
}
g_ptr_array_sort (topics, ephy_bookmarks_compare_topic_pointers);
append_topics (palette, &iter, &valid, &first, topics);
g_ptr_array_free (topics, TRUE);
}
else if (palette->priv->mode == MODE_GROUPED)
{
GPtrArray *suggested, *selected;
/* Allocate and fill the bookmarks array. */
node = ephy_bookmarks_get_bookmarks (palette->priv->bookmarks);
children = ephy_node_get_children (node);
bookmarks = g_ptr_array_sized_new (children->len);
for (i = 0; i < children->len; i++)
{
g_ptr_array_add(bookmarks, g_ptr_array_index (children, i));
}
/* Allocate and fill the topics array. */
node = ephy_bookmarks_get_keywords (palette->priv->bookmarks);
children = ephy_node_get_children (node);
topics = g_ptr_array_sized_new (children->len);
suggested = g_ptr_array_sized_new (children->len);
selected = g_ptr_array_sized_new (children->len);
for (i = 0; i < children->len; i++)
{
node = g_ptr_array_index (children, i);
priority = ephy_node_get_property_int (node, EPHY_NODE_KEYWORD_PROP_PRIORITY);
if (priority != EPHY_NODE_NORMAL_PRIORITY)
continue;
/* We'll consider only bookmarks covered by the same topics as our bookmark. */
if (ephy_node_has_child (node, palette->priv->bookmark))
{
ephy_nodes_remove_not_covered (node, bookmarks);
g_ptr_array_add (selected, node);
}
/* We'll onsider only topics that are not already selected for our bookmark. */
else
{
g_ptr_array_add (topics, node);
}
}
/* Get the minimum cover of topics for the bookmarks. */
suggested = ephy_nodes_get_covering (topics, bookmarks, suggested, 0, 0);
for (i = 0; i < suggested->len; i++)
{
g_ptr_array_remove_fast (topics, g_ptr_array_index (suggested, i));
}
/* Add any topics which cover the bookmarks completely in their own right, or
have no bookmarks currently associated with it. */
for (i = 0; i < topics->len ; i++)
{
node = g_ptr_array_index (topics, i);
if (!ephy_node_has_child (node, palette->priv->bookmark) &&
ephy_nodes_covered (node, bookmarks))
{
g_ptr_array_add (suggested, node);
g_ptr_array_remove_index_fast (topics, i);
i--;
}
}
g_ptr_array_sort (selected, ephy_bookmarks_compare_topic_pointers);
g_ptr_array_sort (suggested, ephy_bookmarks_compare_topic_pointers);
g_ptr_array_sort (topics, ephy_bookmarks_compare_topic_pointers);
append_topics (palette, &iter, &valid, &first, selected);
append_topics (palette, &iter, &valid, &first, suggested);
append_topics (palette, &iter, &valid, &first, topics);
g_ptr_array_free (selected, TRUE);
g_ptr_array_free (suggested, TRUE);
g_ptr_array_free (bookmarks, TRUE);
g_ptr_array_free (topics, TRUE);
}
while (valid)
{
valid = gtk_list_store_remove (palette->priv->store, &iter);
}
}
static void
tree_changed_cb (EphyBookmarks *bookmarks,
EphyTopicsPalette *palette)
{
update_list (palette);
}
static void
node_added_cb (EphyNode *parent,
EphyNode *child,
EphyTopicsPalette *palette)
{
update_list (palette);
}
static void
node_changed_cb (EphyNode *parent,
EphyNode *child,
guint property_id,
EphyTopicsPalette *palette)
{
update_list (palette);
}
static void
node_removed_cb (EphyNode *parent,
EphyNode *child,
guint index,
EphyTopicsPalette *palette)
{
update_list (palette);
}
static void
ephy_topics_palette_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
EphyTopicsPalette *palette = EPHY_TOPICS_PALETTE (object);
EphyNode *node;
switch (prop_id)
{
case PROP_BOOKMARKS:
palette->priv->bookmarks = g_value_get_object (value);
node = ephy_bookmarks_get_keywords (palette->priv->bookmarks);
ephy_node_signal_connect_object (node, EPHY_NODE_CHILD_ADDED,
(EphyNodeCallback) node_added_cb, object);
ephy_node_signal_connect_object (node, EPHY_NODE_CHILD_CHANGED,
(EphyNodeCallback) node_changed_cb, object);
ephy_node_signal_connect_object (node, EPHY_NODE_CHILD_REMOVED,
(EphyNodeCallback) node_removed_cb, object);
g_signal_connect_object (palette->priv->bookmarks, "tree-changed",
G_CALLBACK (tree_changed_cb), palette,
G_CONNECT_AFTER);
break;
case PROP_BOOKMARK:
palette->priv->bookmark = g_value_get_pointer (value);
break;
case PROP_MODE:
palette->priv->mode = g_value_get_int (value);
update_list (palette);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
cell_edited (GtkCellRendererText *renderer,
const char *path_str,
const char *new_text,
EphyTopicsPalette *palette)
{
if (*new_text != 0)
{
EphyNode *node;
node = ephy_bookmarks_add_keyword (palette->priv->bookmarks, new_text);
ephy_bookmarks_set_keyword (palette->priv->bookmarks, node,
palette->priv->bookmark);
}
else
{
update_list (palette);
}
}
static void
toggled (GtkCellRendererToggle *cell_renderer,
gchar *path,
EphyTopicsPalette *palette)
{
EphyNode *topic;
GtkTreeModel *model;
GtkTreeIter iter;
model = gtk_tree_view_get_model (GTK_TREE_VIEW (palette));
g_return_if_fail(gtk_tree_model_get_iter_from_string (model, &iter, path));
gtk_tree_model_get (model, &iter, COLUMN_NODE, &topic, -1);
/* Need to protect against toggling separators. */
if (topic == NULL) return;
if (ephy_node_has_child (topic, palette->priv->bookmark))
{
ephy_bookmarks_unset_keyword (palette->priv->bookmarks,
topic,
palette->priv->bookmark);
}
else
{
ephy_bookmarks_set_keyword (palette->priv->bookmarks,
topic,
palette->priv->bookmark);
}
}
static gboolean
is_separator (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
EphyNode *node;
gtk_tree_model_get (model, iter, COLUMN_NODE, &node, -1);
return (node == NULL);
}
static GObject *
ephy_topics_palette_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_params)
{
GObject *object;
EphyTopicsPalette *palette;
EphyTopicsPalettePrivate *priv;
GtkCellRenderer *renderer;
object = G_OBJECT_CLASS (ephy_topics_palette_parent_class)->constructor (type,
n_construct_properties,
construct_params);
palette = EPHY_TOPICS_PALETTE (object);
priv = EPHY_TOPICS_PALETTE_GET_PRIVATE (object);
priv->store = gtk_list_store_new (COLUMNS, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
gtk_tree_view_set_model (GTK_TREE_VIEW (object), GTK_TREE_MODEL (priv->store));
g_object_unref (priv->store);
priv->column = gtk_tree_view_column_new ();
renderer = gtk_cell_renderer_toggle_new ();
gtk_tree_view_column_pack_start (priv->column, renderer, FALSE);
gtk_tree_view_column_add_attribute (priv->column, renderer, "active", COLUMN_SELECTED);
g_signal_connect (renderer, "toggled", G_CALLBACK (toggled), palette);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_column_pack_start (priv->column, renderer, TRUE);
gtk_tree_view_column_add_attribute (priv->column, renderer, "text", COLUMN_TITLE);
g_signal_connect (renderer, "edited", G_CALLBACK (cell_edited), palette);
gtk_tree_view_append_column (GTK_TREE_VIEW (object), priv->column);
gtk_tree_view_set_row_separator_func (GTK_TREE_VIEW (object), is_separator, NULL, NULL);
gtk_tree_view_set_enable_search (GTK_TREE_VIEW (object), TRUE);
gtk_tree_view_set_search_column (GTK_TREE_VIEW (object), COLUMN_TITLE);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (object), FALSE);
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (object)), GTK_SELECTION_NONE);
update_list (palette);
return object;
}
static void
ephy_topics_palette_init (EphyTopicsPalette *palette)
{
palette->priv = EPHY_TOPICS_PALETTE_GET_PRIVATE (palette);
}
GtkWidget *
ephy_topics_palette_new (EphyBookmarks *bookmarks,
EphyNode *bookmark)
{
EphyTopicsPalette *palette;
g_assert (bookmarks != NULL);
palette = EPHY_TOPICS_PALETTE (g_object_new
(EPHY_TYPE_TOPICS_PALETTE,
"bookmarks", bookmarks,
"bookmark", bookmark,
NULL));
return GTK_WIDGET (palette);
}
static void
ephy_topics_palette_class_init (EphyTopicsPaletteClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = ephy_topics_palette_set_property;
object_class->constructor = ephy_topics_palette_constructor;
g_object_class_install_property (object_class,
PROP_BOOKMARKS,
g_param_spec_object ("bookmarks",
"Bookmarks set",
"Bookmarks set",
EPHY_TYPE_BOOKMARKS,
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
G_PARAM_STATIC_BLURB));
g_object_class_install_property (object_class,
PROP_BOOKMARK,
g_param_spec_pointer ("bookmark",
"Bookmark",
"Bookmark",
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
G_PARAM_STATIC_BLURB));
g_object_class_install_property (object_class,
PROP_MODE,
g_param_spec_int ("mode",
"Mode",
"Mode",
0, MODES-1, 0,
G_PARAM_WRITABLE |
G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK |
G_PARAM_STATIC_BLURB));
g_type_class_add_private (object_class, sizeof(EphyTopicsPalettePrivate));
}
