From b36f3a13160e8747019c40f28df89a9a9c3917ea Mon Sep 17 00:00:00 2001 From: Marco Pesenti Gritti Date: Mon, 09 May 2005 12:03:36 +0000 Subject: Implement epiphany like toolbar editor. Based on patch by Nickolay V. Shmyrev --- (limited to 'cut-n-paste/toolbar-editor/egg-toolbars-model.c') diff --git a/cut-n-paste/toolbar-editor/egg-toolbars-model.c b/cut-n-paste/toolbar-editor/egg-toolbars-model.c new file mode 100644 index 0000000..8da9908 --- /dev/null +++ b/cut-n-paste/toolbar-editor/egg-toolbars-model.c @@ -0,0 +1,830 @@ +/* + * Copyright (C) 2002-2004 Marco Pesenti Gritti + * Copyright (C) 2004 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 "egg-toolbars-model.h" +#include "eggmarshalers.h" + +#include +#include +#include +#include + +static void egg_toolbars_model_class_init (EggToolbarsModelClass *klass); +static void egg_toolbars_model_init (EggToolbarsModel *t); +static void egg_toolbars_model_finalize (GObject *object); + +enum +{ + ITEM_ADDED, + ITEM_REMOVED, + TOOLBAR_ADDED, + TOOLBAR_CHANGED, + TOOLBAR_REMOVED, + GET_ITEM_TYPE, + GET_ITEM_ID, + GET_ITEM_DATA, + LAST_SIGNAL +}; + +typedef struct +{ + char *name; + EggTbModelFlags flags; +} EggToolbarsToolbar; + +typedef struct +{ + char *id; + char *type; + gboolean separator; +} EggToolbarsItem; + +static guint signals[LAST_SIGNAL] = { 0 }; + +static GObjectClass *parent_class = NULL; + +#define EGG_TOOLBARS_MODEL_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), EGG_TYPE_TOOLBARS_MODEL, EggToolbarsModelPrivate)) + +struct EggToolbarsModelPrivate +{ + GNode *toolbars; +}; + +GType +egg_toolbars_model_get_type (void) +{ + static GType type = 0; + + if (type == 0) + { + static const GTypeInfo our_info = { + sizeof (EggToolbarsModelClass), + NULL, /* base_init */ + NULL, /* base_finalize */ + (GClassInitFunc) egg_toolbars_model_class_init, + NULL, + NULL, /* class_data */ + sizeof (EggToolbarsModel), + 0, /* n_preallocs */ + (GInstanceInitFunc) egg_toolbars_model_init + }; + + type = g_type_register_static (G_TYPE_OBJECT, + "EggToolbarsModel", + &our_info, 0); + } + + return type; +} + +static xmlDocPtr +egg_toolbars_model_to_xml (EggToolbarsModel *t) +{ + GNode *l1, *l2, *tl; + xmlDocPtr doc; + + g_return_val_if_fail (EGG_IS_TOOLBARS_MODEL (t), NULL); + + tl = t->priv->toolbars; + + xmlIndentTreeOutput = TRUE; + doc = xmlNewDoc ("1.0"); + doc->children = xmlNewDocNode (doc, NULL, "toolbars", NULL); + + for (l1 = tl->children; l1 != NULL; l1 = l1->next) + { + xmlNodePtr tnode; + EggToolbarsToolbar *toolbar = l1->data; + + tnode = xmlNewChild (doc->children, NULL, "toolbar", NULL); + xmlSetProp (tnode, "name", toolbar->name); + + for (l2 = l1->children; l2 != NULL; l2 = l2->next) + { + xmlNodePtr node; + EggToolbarsItem *item = l2->data; + + if (item->separator) + { + node = xmlNewChild (tnode, NULL, "separator", NULL); + } + else + { + char *data; + + node = xmlNewChild (tnode, NULL, "toolitem", NULL); + data = egg_toolbars_model_get_item_data (t, item->type, item->id); + xmlSetProp (node, "type", item->type); + xmlSetProp (node, "name", data); + g_free (data); + } + } + } + + return doc; +} + +static gboolean +safe_save_xml (const char *xml_file, xmlDocPtr doc) +{ + char *tmp_file; + char *old_file; + gboolean old_exist; + gboolean retval = TRUE; + + tmp_file = g_strconcat (xml_file, ".tmp", NULL); + old_file = g_strconcat (xml_file, ".old", NULL); + + if (xmlSaveFormatFile (tmp_file, doc, 1) <= 0) + { + g_warning ("Failed to write XML data to %s", tmp_file); + goto failed; + } + + old_exist = g_file_test (xml_file, G_FILE_TEST_EXISTS); + + if (old_exist) + { + if (rename (xml_file, old_file) < 0) + { + g_warning ("Failed to rename %s to %s", xml_file, old_file); + retval = FALSE; + goto failed; + } + } + + if (rename (tmp_file, xml_file) < 0) + { + g_warning ("Failed to rename %s to %s", tmp_file, xml_file); + + if (rename (old_file, xml_file) < 0) + { + g_warning ("Failed to restore %s from %s", xml_file, tmp_file); + } + retval = FALSE; + goto failed; + } + + if (old_exist) + { + if (unlink (old_file) < 0) + { + g_warning ("Failed to delete old file %s", old_file); + } + } + + failed: + g_free (old_file); + g_free (tmp_file); + + return retval; +} + +void +egg_toolbars_model_save (EggToolbarsModel *t, + const char *xml_file, + const char *version) +{ + xmlDocPtr doc; + xmlNodePtr root; + + g_return_if_fail (EGG_IS_TOOLBARS_MODEL (t)); + + doc = egg_toolbars_model_to_xml (t); + root = xmlDocGetRootElement (doc); + xmlSetProp (root, "version", version); + safe_save_xml (xml_file, doc); + xmlFreeDoc (doc); +} + +static EggToolbarsToolbar * +toolbars_toolbar_new (const char *name) +{ + EggToolbarsToolbar *toolbar; + + toolbar = g_new (EggToolbarsToolbar, 1); + toolbar->name = g_strdup (name); + toolbar->flags = 0; + + return toolbar; +} + +static EggToolbarsItem * +toolbars_item_new (const char *id, + const char *type, + gboolean separator) +{ + EggToolbarsItem *item; + + g_return_val_if_fail (id != NULL, NULL); + g_return_val_if_fail (type != NULL, NULL); + + item = g_new (EggToolbarsItem, 1); + item->id = g_strdup (id); + item->type = g_strdup (type); + item->separator = separator; + + return item; +} + +static void +free_toolbar_node (GNode *toolbar_node) +{ + EggToolbarsToolbar *toolbar = toolbar_node->data; + + g_free (toolbar->name); + g_free (toolbar); + + g_node_destroy (toolbar_node); +} + +static void +free_item_node (GNode *item_node) +{ + EggToolbarsItem *item = item_node->data; + + g_free (item->id); + g_free (item->type); + g_free (item); + + g_node_destroy (item_node); +} + +EggTbModelFlags +egg_toolbars_model_get_flags (EggToolbarsModel *t, + int toolbar_position) +{ + GNode *toolbar_node; + EggToolbarsToolbar *toolbar; + + toolbar_node = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_val_if_fail (toolbar_node != NULL, 0); + + toolbar = toolbar_node->data; + + return toolbar->flags; +} + +void +egg_toolbars_model_set_flags (EggToolbarsModel *t, + int toolbar_position, + EggTbModelFlags flags) +{ + GNode *toolbar_node; + EggToolbarsToolbar *toolbar; + + toolbar_node = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_if_fail (toolbar_node != NULL); + + toolbar = toolbar_node->data; + + toolbar->flags = flags; + + g_signal_emit (G_OBJECT (t), signals[TOOLBAR_CHANGED], + 0, toolbar_position); +} + +void +egg_toolbars_model_add_separator (EggToolbarsModel *t, + int toolbar_position, + int position) +{ + GNode *parent_node; + GNode *node; + EggToolbarsItem *item; + int real_position; + + g_return_if_fail (EGG_IS_TOOLBARS_MODEL (t)); + + parent_node = g_node_nth_child (t->priv->toolbars, toolbar_position); + item = toolbars_item_new ("separator", EGG_TOOLBAR_ITEM_TYPE, TRUE); + node = g_node_new (item); + g_node_insert (parent_node, position, node); + + real_position = g_node_child_position (parent_node, node); + + g_signal_emit (G_OBJECT (t), signals[ITEM_ADDED], 0, + toolbar_position, real_position); +} + +static gboolean +impl_add_item (EggToolbarsModel *t, + int toolbar_position, + int position, + const char *id, + const char *type) +{ + GNode *parent_node; + GNode *node; + EggToolbarsItem *item; + int real_position; + + g_return_val_if_fail (EGG_IS_TOOLBARS_MODEL (t), FALSE); + g_return_val_if_fail (id != NULL, FALSE); + g_return_val_if_fail (type != NULL, FALSE); + + parent_node = g_node_nth_child (t->priv->toolbars, toolbar_position); + item = toolbars_item_new (id, type, FALSE); + node = g_node_new (item); + g_node_insert (parent_node, position, node); + + real_position = g_node_child_position (parent_node, node); + + g_signal_emit (G_OBJECT (t), signals[ITEM_ADDED], 0, + toolbar_position, real_position); + + return TRUE; +} + +static void +parse_item_list (EggToolbarsModel *t, + xmlNodePtr child, + int position) +{ + while (child) + { + if (xmlStrEqual (child->name, "toolitem")) + { + xmlChar *name, *type; + char *id; + + name = xmlGetProp (child, "name"); + type = xmlGetProp (child, "type"); + if (type == NULL) + { + type = xmlStrdup (EGG_TOOLBAR_ITEM_TYPE); + } + + if (name != NULL && name[0] != '\0' && type != NULL) + { + id = egg_toolbars_model_get_item_id (t, type, name); + if (id != NULL) + { + egg_toolbars_model_add_item (t, position, -1, id, type); + } + g_free (id); + } + xmlFree (name); + xmlFree (type); + } + else if (xmlStrEqual (child->name, "separator")) + { + egg_toolbars_model_add_separator (t, position, -1); + } + + child = child->next; + } +} + +int +egg_toolbars_model_add_toolbar (EggToolbarsModel *t, + int position, + const char *name) +{ + GNode *node; + int real_position; + + g_return_val_if_fail (EGG_IS_TOOLBARS_MODEL (t), -1); + + node = g_node_new (toolbars_toolbar_new (name)); + g_node_insert (t->priv->toolbars, position, node); + + real_position = g_node_child_position (t->priv->toolbars, node); + + g_signal_emit (G_OBJECT (t), signals[TOOLBAR_ADDED], + 0, real_position); + + return g_node_child_position (t->priv->toolbars, node); +} + +static void +parse_toolbars (EggToolbarsModel *t, + xmlNodePtr child) +{ + while (child) + { + if (xmlStrEqual (child->name, "toolbar")) + { + xmlChar *name; + xmlChar *style; + int position; + + name = xmlGetProp (child, "name"); + position = egg_toolbars_model_add_toolbar (t, -1, name); + xmlFree (name); + + style = xmlGetProp (child, "style"); + if (style && xmlStrEqual (style, "icons-only")) + { + /* FIXME: use toolbar position instead of 0 */ + egg_toolbars_model_set_flags (t, 0, EGG_TB_MODEL_ICONS_ONLY); + } + xmlFree (style); + + parse_item_list (t, child->children, position); + } + + child = child->next; + } +} + +gboolean +egg_toolbars_model_load (EggToolbarsModel *t, + const char *xml_file) +{ + xmlDocPtr doc; + xmlNodePtr root; + + g_return_val_if_fail (EGG_IS_TOOLBARS_MODEL (t), FALSE); + + if (!xml_file || !g_file_test (xml_file, G_FILE_TEST_EXISTS)) return FALSE; + + doc = xmlParseFile (xml_file); + if (doc == NULL) + { + g_warning ("Failed to load XML data from %s", xml_file); + return FALSE; + } + root = xmlDocGetRootElement (doc); + + parse_toolbars (t, root->children); + + xmlFreeDoc (doc); + + return TRUE; +} + +static char * +impl_get_item_id (EggToolbarsModel *t, + const char *type, + const char *data) +{ + if (strcmp (type, EGG_TOOLBAR_ITEM_TYPE) == 0) + { + return g_strdup (data); + } + + return NULL; +} + +static char * +impl_get_item_data (EggToolbarsModel *t, + const char *type, + const char *id) +{ + if (strcmp (type, EGG_TOOLBAR_ITEM_TYPE) == 0) + { + return g_strdup (id); + } + + return NULL; +} + +static char * +impl_get_item_type (EggToolbarsModel *t, + GdkAtom type) +{ + if (gdk_atom_intern (EGG_TOOLBAR_ITEM_TYPE, FALSE) == type) + { + return g_strdup (EGG_TOOLBAR_ITEM_TYPE); + } + + return NULL; +} + +static gboolean +_egg_accumulator_STRING (GSignalInvocationHint *ihint, + GValue *return_accu, + const GValue *handler_return, + gpointer dummy) +{ + gboolean continue_emission; + const char *retval; + + retval = g_value_get_string (handler_return); + g_value_set_string (return_accu, retval); + continue_emission = !retval || !retval[0]; + + return continue_emission; +} + + +static void +egg_toolbars_model_class_init (EggToolbarsModelClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + parent_class = g_type_class_peek_parent (klass); + + object_class->finalize = egg_toolbars_model_finalize; + + klass->add_item = impl_add_item; + klass->get_item_id = impl_get_item_id; + klass->get_item_data = impl_get_item_data; + klass->get_item_type = impl_get_item_type; + + signals[ITEM_ADDED] = + g_signal_new ("item_added", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, item_added), + NULL, NULL, _egg_marshal_VOID__INT_INT, + G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT); + signals[TOOLBAR_ADDED] = + g_signal_new ("toolbar_added", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, toolbar_added), + NULL, NULL, g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, 1, G_TYPE_INT); + signals[ITEM_REMOVED] = + g_signal_new ("item_removed", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, item_removed), + NULL, NULL, _egg_marshal_VOID__INT_INT, + G_TYPE_NONE, 2, G_TYPE_INT, G_TYPE_INT); + signals[TOOLBAR_REMOVED] = + g_signal_new ("toolbar_removed", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, toolbar_removed), + NULL, NULL, g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, 1, G_TYPE_INT); + signals[TOOLBAR_CHANGED] = + g_signal_new ("toolbar_changed", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, toolbar_changed), + NULL, NULL, g_cclosure_marshal_VOID__INT, + G_TYPE_NONE, 1, G_TYPE_INT); + signals[GET_ITEM_TYPE] = + g_signal_new ("get_item_type", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, get_item_type), + _egg_accumulator_STRING, NULL, + _egg_marshal_STRING__POINTER, + G_TYPE_STRING, 1, G_TYPE_POINTER); + signals[GET_ITEM_ID] = + g_signal_new ("get_item_id", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, get_item_id), + _egg_accumulator_STRING, NULL, + _egg_marshal_STRING__STRING_STRING, + G_TYPE_STRING, 2, G_TYPE_STRING, G_TYPE_STRING); + signals[GET_ITEM_DATA] = + g_signal_new ("get_item_data", + G_OBJECT_CLASS_TYPE (object_class), + G_SIGNAL_RUN_FIRST | G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (EggToolbarsModelClass, get_item_data), + _egg_accumulator_STRING, NULL, + _egg_marshal_STRING__STRING_STRING, + G_TYPE_STRING, 2, G_TYPE_STRING, G_TYPE_STRING); + + g_type_class_add_private (object_class, sizeof (EggToolbarsModelPrivate)); +} + +static void +egg_toolbars_model_init (EggToolbarsModel *t) +{ + t->priv =EGG_TOOLBARS_MODEL_GET_PRIVATE (t); + + t->priv->toolbars = g_node_new (NULL); +} + +static void +free_toolbar (GNode *toolbar_node) +{ + g_node_children_foreach (toolbar_node, G_TRAVERSE_ALL, + (GNodeForeachFunc) free_item_node, NULL); + free_toolbar_node (toolbar_node); +} + +static void +egg_toolbars_model_finalize (GObject *object) +{ + EggToolbarsModel *t = EGG_TOOLBARS_MODEL (object); + + g_node_children_foreach (t->priv->toolbars, G_TRAVERSE_ALL, + (GNodeForeachFunc) free_toolbar, NULL); + g_node_destroy (t->priv->toolbars); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +EggToolbarsModel * +egg_toolbars_model_new (void) +{ + return EGG_TOOLBARS_MODEL (g_object_new (EGG_TYPE_TOOLBARS_MODEL, NULL)); +} + +void +egg_toolbars_model_remove_toolbar (EggToolbarsModel *t, + int position) +{ + GNode *node; + EggTbModelFlags flags; + + g_return_if_fail (EGG_IS_TOOLBARS_MODEL (t)); + + flags = egg_toolbars_model_get_flags (t, position); + + if (!(flags & EGG_TB_MODEL_NOT_REMOVABLE)) + { + node = g_node_nth_child (t->priv->toolbars, position); + g_return_if_fail (node != NULL); + + free_toolbar_node (node); + + g_signal_emit (G_OBJECT (t), signals[TOOLBAR_REMOVED], + 0, position); + } +} + +void +egg_toolbars_model_remove_item (EggToolbarsModel *t, + int toolbar_position, + int position) +{ + GNode *node, *toolbar; + + g_return_if_fail (EGG_IS_TOOLBARS_MODEL (t)); + + toolbar = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_if_fail (toolbar != NULL); + + node = g_node_nth_child (toolbar, position); + g_return_if_fail (node != NULL); + + free_item_node (node); + + g_signal_emit (G_OBJECT (t), signals[ITEM_REMOVED], 0, + toolbar_position, position); +} + +void +egg_toolbars_model_move_item (EggToolbarsModel *t, + int toolbar_position, + int position, + int new_toolbar_position, + int new_position) +{ + GNode *node, *toolbar, *new_toolbar; + + g_return_if_fail (EGG_IS_TOOLBARS_MODEL (t)); + + toolbar = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_if_fail (toolbar != NULL); + + new_toolbar = g_node_nth_child (t->priv->toolbars, new_toolbar_position); + g_return_if_fail (new_toolbar != NULL); + + node = g_node_nth_child (toolbar, position); + g_return_if_fail (node != NULL); + + g_node_unlink (node); + + g_signal_emit (G_OBJECT (t), signals[ITEM_REMOVED], 0, + toolbar_position, position); + + g_node_insert (new_toolbar, new_position, node); + + g_signal_emit (G_OBJECT (t), signals[ITEM_ADDED], 0, + new_toolbar_position, new_position); +} + +int +egg_toolbars_model_n_items (EggToolbarsModel *t, + int toolbar_position) +{ + GNode *toolbar; + + toolbar = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_val_if_fail (toolbar != NULL, -1); + + return g_node_n_children (toolbar); +} + +void +egg_toolbars_model_item_nth (EggToolbarsModel *t, + int toolbar_position, + int position, + gboolean *is_separator, + const char **id, + const char **type) +{ + GNode *toolbar; + GNode *item; + EggToolbarsItem *idata; + + toolbar = g_node_nth_child (t->priv->toolbars, toolbar_position); + g_return_if_fail (toolbar != NULL); + + item = g_node_nth_child (toolbar, position); + g_return_if_fail (item != NULL); + + idata = item->data; + + *is_separator = idata->separator; + + if (id) + { + *id = idata->id; + } + + if (type) + { + *type = idata->type; + } +} + +int +egg_toolbars_model_n_toolbars (EggToolbarsModel *t) +{ + return g_node_n_children (t->priv->toolbars); +} + +const char * +egg_toolbars_model_toolbar_nth (EggToolbarsModel *t, + int position) +{ + GNode *toolbar; + EggToolbarsToolbar *tdata; + + toolbar = g_node_nth_child (t->priv->toolbars, position); + g_return_val_if_fail (toolbar != NULL, NULL); + + tdata = toolbar->data; + + return tdata->name; +} + +gboolean +egg_toolbars_model_add_item (EggToolbarsModel *t, + int toolbar_position, + int position, + const char *id, + const char *type) +{ + EggToolbarsModelClass *klass = EGG_TOOLBARS_MODEL_GET_CLASS (t); + return klass->add_item (t, toolbar_position, position, id, type); +} + +char * +egg_toolbars_model_get_item_id (EggToolbarsModel *t, + const char *type, + const char *name) +{ + char *retval; + + g_signal_emit (t, signals[GET_ITEM_ID], 0, type, name, &retval); + + return retval; +} + +char * +egg_toolbars_model_get_item_data (EggToolbarsModel *t, + const char *type, + const char *id) +{ + char *retval; + + g_signal_emit (t, signals[GET_ITEM_DATA], 0, type, id, &retval); + + return retval; +} + +char * +egg_toolbars_model_get_item_type (EggToolbarsModel *t, + GdkAtom type) +{ + char *retval; + + g_signal_emit (t, signals[GET_ITEM_TYPE], 0, type, &retval); + + return retval; +} -- cgit v0.9.1