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-rw-r--r--lib/widgets/ephy-tree-model-node.c727
1 files changed, 727 insertions, 0 deletions
diff --git a/lib/widgets/ephy-tree-model-node.c b/lib/widgets/ephy-tree-model-node.c
new file mode 100644
index 000000000..35d36c98d
--- /dev/null
+++ b/lib/widgets/ephy-tree-model-node.c
@@ -0,0 +1,727 @@
+/*
+ * Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org>
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * $Id$
+ */
+
+#include <config.h>
+#include <gtk/gtktreeview.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <libgnome/gnome-i18n.h>
+#include <time.h>
+#include <string.h>
+
+#include "ephy-node-filter.h"
+#include "ephy-tree-model-node.h"
+#include "ephy-stock-icons.h"
+#include "ephy-node.h"
+#include "ephy-debug.h"
+
+static void ephy_tree_model_node_class_init (EphyTreeModelNodeClass *klass);
+static void ephy_tree_model_node_init (EphyTreeModelNode *model);
+static void ephy_tree_model_node_finalize (GObject *object);
+static void ephy_tree_model_node_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void ephy_tree_model_node_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static guint ephy_tree_model_node_get_flags (GtkTreeModel *tree_model);
+static gboolean ephy_tree_model_node_get_iter (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreePath *path);
+static GtkTreePath *ephy_tree_model_node_get_path (GtkTreeModel *tree_model,
+ GtkTreeIter *iter);
+static gboolean ephy_tree_model_node_iter_next (GtkTreeModel *tree_model,
+ GtkTreeIter *iter);
+static gboolean ephy_tree_model_node_iter_children (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *parent);
+static gboolean ephy_tree_model_node_iter_has_child (GtkTreeModel *tree_model,
+ GtkTreeIter *iter);
+static int ephy_tree_model_node_iter_n_children (GtkTreeModel *tree_model,
+ GtkTreeIter *iter);
+static gboolean ephy_tree_model_node_iter_nth_child (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *parent,
+ int n);
+static gboolean ephy_tree_model_node_iter_parent (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *child);
+static void ephy_tree_model_node_tree_model_init (GtkTreeModelIface *iface);
+static void root_child_removed_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model);
+static void root_child_added_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model);
+static void root_child_changed_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model);
+static inline void ephy_tree_model_node_update_node (EphyTreeModelNode *model,
+ EphyNode *node,
+ int idx);
+static void root_destroyed_cb (EphyNode *node,
+ EphyTreeModelNode *model);
+static inline GtkTreePath *get_path_real (EphyTreeModelNode *model,
+ EphyNode *node);
+
+struct EphyTreeModelNodePrivate
+{
+ EphyNode *root;
+
+ EphyNodeFilter *filter;
+
+ GList *columns;
+ int columns_num;
+};
+
+typedef struct
+{
+ GType type;
+ int prop_id;
+ EphyTreeModelNodeValueFunc func;
+ gpointer user_data;
+} EphyTreeModelNodeColData;
+
+enum
+{
+ PROP_0,
+ PROP_ROOT,
+ PROP_FILTER
+};
+
+static GObjectClass *parent_class = NULL;
+
+GType
+ephy_tree_model_node_get_type (void)
+{
+ static GType ephy_tree_model_node_type = 0;
+
+ if (ephy_tree_model_node_type == 0)
+ {
+ static const GTypeInfo our_info =
+ {
+ sizeof (EphyTreeModelNodeClass),
+ NULL,
+ NULL,
+ (GClassInitFunc) ephy_tree_model_node_class_init,
+ NULL,
+ NULL,
+ sizeof (EphyTreeModelNode),
+ 0,
+ (GInstanceInitFunc) ephy_tree_model_node_init
+ };
+
+ static const GInterfaceInfo tree_model_info =
+ {
+ (GInterfaceInitFunc) ephy_tree_model_node_tree_model_init,
+ NULL,
+ NULL
+ };
+
+ ephy_tree_model_node_type = g_type_register_static (G_TYPE_OBJECT,
+ "EphyTreeModelNode",
+ &our_info, 0);
+
+ g_type_add_interface_static (ephy_tree_model_node_type,
+ GTK_TYPE_TREE_MODEL,
+ &tree_model_info);
+ }
+
+ return ephy_tree_model_node_type;
+}
+
+static void
+ephy_tree_model_node_class_init (EphyTreeModelNodeClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ object_class->finalize = ephy_tree_model_node_finalize;
+
+ object_class->set_property = ephy_tree_model_node_set_property;
+ object_class->get_property = ephy_tree_model_node_get_property;
+
+ g_object_class_install_property (object_class,
+ PROP_ROOT,
+ g_param_spec_object ("root",
+ "Root node",
+ "Root node",
+ EPHY_TYPE_NODE,
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+ g_object_class_install_property (object_class,
+ PROP_FILTER,
+ g_param_spec_object ("filter",
+ "Filter object",
+ "Filter object",
+ EPHY_TYPE_NODE_FILTER,
+ G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+ephy_tree_model_node_init (EphyTreeModelNode *model)
+{
+ GtkWidget *dummy;
+
+ do
+ {
+ model->stamp = g_random_int ();
+ }
+ while (model->stamp == 0);
+
+ model->priv = g_new0 (EphyTreeModelNodePrivate, 1);
+
+ dummy = gtk_tree_view_new ();
+
+ gtk_widget_destroy (dummy);
+
+ model->priv->columns = NULL;
+ model->priv->columns_num = EPHY_TREE_MODEL_NODE_BUILTIN_COLUMNS;
+}
+
+static void
+ephy_tree_model_node_finalize (GObject *object)
+{
+ EphyTreeModelNode *model;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (EPHY_IS_TREE_MODEL_NODE (object));
+
+ model = EPHY_TREE_MODEL_NODE (object);
+
+ g_return_if_fail (model->priv != NULL);
+
+ g_list_foreach (model->priv->columns, (GFunc) g_free, NULL);
+ g_list_free (model->priv->columns);
+
+ g_free (model->priv);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+filter_changed_cb (EphyNodeFilter *filter,
+ EphyTreeModelNode *model)
+{
+ GPtrArray *kids;
+ int i;
+
+ kids = ephy_node_get_children (model->priv->root);
+
+ for (i = 0; i < kids->len; i++)
+ {
+ ephy_tree_model_node_update_node (model,
+ g_ptr_array_index (kids, i),
+ i);
+ }
+
+ ephy_node_thaw (model->priv->root);
+}
+
+static void
+ephy_tree_model_node_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (object);
+
+ switch (prop_id)
+ {
+ case PROP_ROOT:
+ model->priv->root = g_value_get_object (value);
+
+ g_signal_connect_object (G_OBJECT (model->priv->root),
+ "child_added",
+ G_CALLBACK (root_child_added_cb),
+ G_OBJECT (model),
+ 0);
+ g_signal_connect_object (G_OBJECT (model->priv->root),
+ "child_removed",
+ G_CALLBACK (root_child_removed_cb),
+ G_OBJECT (model),
+ 0);
+ g_signal_connect_object (G_OBJECT (model->priv->root),
+ "child_changed",
+ G_CALLBACK (root_child_changed_cb),
+ G_OBJECT (model),
+ 0);
+ g_signal_connect_object (G_OBJECT (model->priv->root),
+ "destroyed",
+ G_CALLBACK (root_destroyed_cb),
+ G_OBJECT (model),
+ 0);
+
+ break;
+ case PROP_FILTER:
+ model->priv->filter = g_value_get_object (value);
+
+ if (model->priv->filter != NULL)
+ {
+ g_signal_connect_object (G_OBJECT (model->priv->filter),
+ "changed",
+ G_CALLBACK (filter_changed_cb),
+ G_OBJECT (model),
+ 0);
+ }
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+ephy_tree_model_node_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (object);
+
+ switch (prop_id)
+ {
+ case PROP_ROOT:
+ g_value_set_object (value, model->priv->root);
+ break;
+ case PROP_FILTER:
+ g_value_set_object (value, model->priv->filter);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+EphyTreeModelNode *
+ephy_tree_model_node_new (EphyNode *root,
+ EphyNodeFilter *filter)
+{
+ EphyTreeModelNode *model;
+
+ model = EPHY_TREE_MODEL_NODE (g_object_new (EPHY_TYPE_TREE_MODEL_NODE,
+ "filter", filter,
+ "root", root,
+ NULL));
+
+ g_return_val_if_fail (model->priv != NULL, NULL);
+
+ return model;
+}
+
+int
+ephy_tree_model_node_add_prop_column (EphyTreeModelNode *model,
+ GType value_type,
+ int prop_id)
+{
+ EphyTreeModelNodeColData *col;
+
+ col = g_new0 (EphyTreeModelNodeColData, 1);
+ col->prop_id = prop_id;
+ col->type = value_type;
+ col->func = NULL;
+ col->user_data = NULL;
+
+ model->priv->columns = g_list_append (model->priv->columns, col);
+ model->priv->columns_num++;
+
+ return model->priv->columns_num;
+}
+
+int
+ephy_tree_model_node_add_func_column (EphyTreeModelNode *model,
+ GType value_type,
+ EphyTreeModelNodeValueFunc func,
+ gpointer user_data)
+{
+ EphyTreeModelNodeColData *col;
+
+ col = g_new0 (EphyTreeModelNodeColData, 1);
+ col->prop_id = -1;
+ col->type = value_type;
+ col->func = func;
+ col->user_data = user_data;
+
+ model->priv->columns = g_list_append (model->priv->columns, col);
+ model->priv->columns_num++;
+
+ return model->priv->columns_num;
+}
+
+static int
+ephy_tree_model_node_get_n_columns (GtkTreeModel *tree_model)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+
+ return model->priv->columns_num;
+}
+
+static GType
+ephy_tree_model_node_get_column_type (GtkTreeModel *tree_model,
+ int index)
+{
+ int list_index;
+ EphyTreeModelNodeColData *col;
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+
+ if (index == EPHY_TREE_MODEL_NODE_COL_VISIBLE)
+ return G_TYPE_BOOLEAN;
+
+ list_index = index - EPHY_TREE_MODEL_NODE_BUILTIN_COLUMNS - 1;
+ col = g_list_nth_data (model->priv->columns, list_index);
+
+ return col->type;
+}
+
+static void
+ephy_tree_model_node_get_value (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ int column,
+ GValue *value)
+{
+ int list_index;
+ EphyTreeModelNodeColData *col;
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+ EphyNode *node;
+
+ g_return_if_fail (EPHY_IS_TREE_MODEL_NODE (tree_model));
+ g_return_if_fail (iter != NULL);
+ g_return_if_fail (iter->stamp == model->stamp);
+ g_return_if_fail (EPHY_IS_NODE (iter->user_data));
+
+ if (model->priv->root == NULL)
+ return;
+
+ node = EPHY_NODE (iter->user_data);
+
+ if (column == EPHY_TREE_MODEL_NODE_COL_VISIBLE)
+ {
+ g_value_init (value, G_TYPE_BOOLEAN);
+
+ if (model->priv->filter != NULL)
+ {
+ g_value_set_boolean (value,
+ ephy_node_filter_evaluate (model->priv->filter, node));
+ }
+ else
+ {
+ g_value_set_boolean (value, TRUE);
+ }
+ }
+ else
+ {
+ list_index = column - EPHY_TREE_MODEL_NODE_BUILTIN_COLUMNS - 1;
+ col = g_list_nth_data (model->priv->columns, list_index);
+
+ g_return_if_fail (col != NULL);
+
+ if (col->prop_id > 0)
+ {
+ ephy_node_get_property (node,
+ col->prop_id,
+ value);
+ }
+ else
+ {
+ col->func (node, value, col->user_data);
+ }
+ }
+}
+
+static void
+ephy_tree_model_node_tree_model_init (GtkTreeModelIface *iface)
+{
+ iface->get_flags = ephy_tree_model_node_get_flags;
+ iface->get_iter = ephy_tree_model_node_get_iter;
+ iface->get_path = ephy_tree_model_node_get_path;
+ iface->iter_next = ephy_tree_model_node_iter_next;
+ iface->iter_children = ephy_tree_model_node_iter_children;
+ iface->iter_has_child = ephy_tree_model_node_iter_has_child;
+ iface->iter_n_children = ephy_tree_model_node_iter_n_children;
+ iface->iter_nth_child = ephy_tree_model_node_iter_nth_child;
+ iface->iter_parent = ephy_tree_model_node_iter_parent;
+ iface->get_n_columns = ephy_tree_model_node_get_n_columns;
+ iface->get_column_type = ephy_tree_model_node_get_column_type;
+ iface->get_value = ephy_tree_model_node_get_value;
+}
+
+static guint
+ephy_tree_model_node_get_flags (GtkTreeModel *tree_model)
+{
+ return 0;
+}
+
+static gboolean
+ephy_tree_model_node_get_iter (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreePath *path)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+ int i;
+
+ g_return_val_if_fail (EPHY_IS_TREE_MODEL_NODE (model), FALSE);
+ g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);
+
+ if (model->priv->root == NULL)
+ return FALSE;
+
+ i = gtk_tree_path_get_indices (path)[0];
+
+ iter->stamp = model->stamp;
+ iter->user_data = ephy_node_get_nth_child (model->priv->root, i);
+
+ if (iter->user_data == NULL)
+ {
+ iter->stamp = 0;
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+static inline GtkTreePath *
+get_path_real (EphyTreeModelNode *model,
+ EphyNode *node)
+{
+ GtkTreePath *retval;
+
+ retval = gtk_tree_path_new ();
+ gtk_tree_path_append_index (retval, ephy_node_get_child_index (model->priv->root, node));
+
+ return retval;
+}
+
+static GtkTreePath *
+ephy_tree_model_node_get_path (GtkTreeModel *tree_model,
+ GtkTreeIter *iter)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+ EphyNode *node;
+
+ g_return_val_if_fail (EPHY_IS_TREE_MODEL_NODE (tree_model), NULL);
+ g_return_val_if_fail (iter != NULL, NULL);
+ g_return_val_if_fail (iter->user_data != NULL, NULL);
+ g_return_val_if_fail (iter->stamp == model->stamp, NULL);
+
+ if (model->priv->root == NULL)
+ return NULL;
+
+ node = EPHY_NODE (iter->user_data);
+
+ if (node == model->priv->root)
+ return gtk_tree_path_new ();
+
+ return get_path_real (model, node);
+}
+
+static gboolean
+ephy_tree_model_node_iter_next (GtkTreeModel *tree_model,
+ GtkTreeIter *iter)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+ EphyNode *node;
+
+ g_return_val_if_fail (iter != NULL, FALSE);
+ g_return_val_if_fail (iter->user_data != NULL, FALSE);
+ g_return_val_if_fail (iter->stamp == EPHY_TREE_MODEL_NODE (tree_model)->stamp, FALSE);
+
+ if (model->priv->root == NULL)
+ return FALSE;
+
+ node = EPHY_NODE (iter->user_data);
+
+ if (node == model->priv->root)
+ return FALSE;
+
+ iter->user_data = ephy_node_get_next_child (model->priv->root, node);
+
+ return (iter->user_data != NULL);
+}
+
+static gboolean
+ephy_tree_model_node_iter_children (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *parent)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+
+ if (model->priv->root == NULL)
+ return FALSE;
+
+ if (parent != NULL)
+ return FALSE;
+
+ iter->stamp = model->stamp;
+ iter->user_data = model->priv->root;
+
+ return TRUE;
+}
+
+static gboolean
+ephy_tree_model_node_iter_has_child (GtkTreeModel *tree_model,
+ GtkTreeIter *iter)
+{
+ return FALSE;
+}
+
+static int
+ephy_tree_model_node_iter_n_children (GtkTreeModel *tree_model,
+ GtkTreeIter *iter)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+
+ g_return_val_if_fail (EPHY_IS_TREE_MODEL_NODE (tree_model), -1);
+
+ if (model->priv->root == NULL)
+ return 0;
+
+ if (iter == NULL)
+ return ephy_node_get_n_children (model->priv->root);
+
+ g_return_val_if_fail (model->stamp == iter->stamp, -1);
+
+ return 0;
+}
+
+static gboolean
+ephy_tree_model_node_iter_nth_child (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *parent,
+ int n)
+{
+ EphyTreeModelNode *model = EPHY_TREE_MODEL_NODE (tree_model);
+ EphyNode *node;
+
+ g_return_val_if_fail (EPHY_IS_TREE_MODEL_NODE (tree_model), FALSE);
+
+ if (model->priv->root == NULL)
+ return FALSE;
+
+ if (parent != NULL)
+ return FALSE;
+
+ node = ephy_node_get_nth_child (model->priv->root, n);
+
+ if (node != NULL)
+ {
+ iter->stamp = model->stamp;
+ iter->user_data = node;
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+ephy_tree_model_node_iter_parent (GtkTreeModel *tree_model,
+ GtkTreeIter *iter,
+ GtkTreeIter *child)
+{
+ return FALSE;
+}
+
+EphyNode *
+ephy_tree_model_node_node_from_iter (EphyTreeModelNode *model,
+ GtkTreeIter *iter)
+{
+ return EPHY_NODE (iter->user_data);
+}
+
+void
+ephy_tree_model_node_iter_from_node (EphyTreeModelNode *model,
+ EphyNode *node,
+ GtkTreeIter *iter)
+{
+ iter->stamp = model->stamp;
+ iter->user_data = node;
+}
+
+static void
+root_child_removed_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model)
+{
+ GtkTreePath *path;
+
+ path = get_path_real (model, child);
+ gtk_tree_model_row_deleted (GTK_TREE_MODEL (model), path);
+ gtk_tree_path_free (path);
+}
+
+static void
+root_child_added_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model)
+{
+ GtkTreePath *path;
+ GtkTreeIter iter;
+
+ ephy_tree_model_node_iter_from_node (model, child, &iter);
+
+ path = get_path_real (model, child);
+ gtk_tree_model_row_inserted (GTK_TREE_MODEL (model), path, &iter);
+ gtk_tree_path_free (path);
+}
+
+static inline void
+ephy_tree_model_node_update_node (EphyTreeModelNode *model,
+ EphyNode *node,
+ int idx)
+{
+ GtkTreePath *path;
+ GtkTreeIter iter;
+
+ ephy_tree_model_node_iter_from_node (model, node, &iter);
+
+ if (idx >= 0)
+ {
+ path = gtk_tree_path_new ();
+ gtk_tree_path_append_index (path, idx);
+ }
+ else
+ {
+ path = get_path_real (model, node);
+ }
+
+ LOG ("Updating row")
+
+ gtk_tree_model_row_changed (GTK_TREE_MODEL (model), path, &iter);
+ gtk_tree_path_free (path);
+}
+
+static void
+root_child_changed_cb (EphyNode *node,
+ EphyNode *child,
+ EphyTreeModelNode *model)
+{
+ ephy_tree_model_node_update_node (model, child, -1);
+}
+
+static void
+root_destroyed_cb (EphyNode *node,
+ EphyTreeModelNode *model)
+{
+ model->priv->root = NULL;
+
+ /* no need to do other stuff since we should have had a bunch of child_removed
+ * signals already */
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 22:36:43 +0800