/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation. * * 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 Lesser General Public License * along with this program; if not, see . * * * Authors: * Michael Zucchi * * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) * */ #ifdef HAVE_CONFIG_H #include #endif #include #include #include #include #include "e-config.h" #define E_CONFIG_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE \ ((obj), E_TYPE_CONFIG, EConfigPrivate)) #define d(x) typedef GtkWidget * (*EConfigItemSectionFactoryFunc) (EConfig *ec, EConfigItem *item, GtkWidget *parent, GtkWidget *old, gint position, gpointer data, GtkWidget **real_frame); struct _EConfigFactory { gchar *id; EConfigFactoryFunc func; gpointer user_data; }; struct _menu_node { GSList *menu; EConfigItemsFunc free; gpointer data; }; struct _widget_node { EConfig *config; struct _menu_node *context; EConfigItem *item; GtkWidget *widget; /* widget created by the factory, if any */ GtkWidget *frame; /* if created by us */ GtkWidget *real_frame; /* used for sections and section tables, this is the real GtkFrame (whereas "frame" above is the internal vbox/table) */ guint empty:1; /* set if empty (i.e. hidden) */ }; struct _check_node { gchar *pageid; EConfigCheckFunc func; gpointer data; }; struct _finish_page_node { gchar *pageid; gboolean is_finish; gint orig_type; }; struct _EConfigPrivate { GList *menus; GList *widgets; GList *checks; }; static GtkWidget * config_hook_section_factory (EConfig *config, EConfigItem *item, GtkWidget *parent, GtkWidget *old, gint position, gpointer data, GtkWidget **real_frame); enum { ABORT, COMMIT, LAST_SIGNAL }; static guint signals[LAST_SIGNAL]; G_DEFINE_TYPE ( EConfig, e_config, G_TYPE_OBJECT) static void check_node_free (struct _check_node *node) { g_free (node->pageid); g_slice_free (struct _check_node, node); } static void config_finalize (GObject *object) { EConfigPrivate *priv; GList *link; priv = E_CONFIG_GET_PRIVATE (object); d (printf ("finalising EConfig %p\n", object)); g_free (E_CONFIG (object)->id); link = priv->menus; while (link != NULL) { struct _menu_node *node = link->data; if (node->free) node->free (E_CONFIG (object), node->menu, node->data); g_free (node); link = g_list_delete_link (link, link); } link = priv->widgets; while (link != NULL) { struct _widget_node *node = link->data; /* disconnect the ec_widget_destroyed function from the widget */ if (node->widget) g_signal_handlers_disconnect_matched ( node->widget, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, node); g_free (node); link = g_list_delete_link (link, link); } g_list_free_full (priv->checks, (GDestroyNotify) check_node_free); /* Chain up to parent's finalize() method. */ G_OBJECT_CLASS (e_config_parent_class)->finalize (object); } static void config_target_free (EConfig *config, EConfigTarget *target) { g_free (target); g_object_unref (config); } static void config_set_target (EConfig *config, EConfigTarget *target) { if (config->target != NULL) e_config_target_free (config, target); config->target = target; } static void e_config_class_init (EConfigClass *class) { GObjectClass *object_class; g_type_class_add_private (class, sizeof (EConfigPrivate)); object_class = G_OBJECT_CLASS (class); object_class->finalize = config_finalize; class->set_target = config_set_target; class->target_free = config_target_free; signals[ABORT] = g_signal_new ( "abort", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (EConfigClass, abort), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[COMMIT] = g_signal_new ( "commit", G_OBJECT_CLASS_TYPE (object_class), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (EConfigClass, commit), NULL, NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0); } static void e_config_init (EConfig *config) { config->priv = E_CONFIG_GET_PRIVATE (config); } /** * e_config_construct: * @config: The instance to initialise. * @id: The name of the configuration window this manager drives. * * Used by implementing classes to initialise base parameters. * * Return value: @config is returned. **/ EConfig * e_config_construct (EConfig *config, const gchar *id) { config->id = g_strdup (id); return config; } /** * e_config_add_items: * @config: An initialised implementing instance of EConfig. * @items: A list of EConfigItem's to add to the configuration manager. * @freefunc: If supplied, called to free the item list (and/or items) * once they are no longer needed. * @data: Data for the callback methods. * * Add new EConfigItems to the configuration window. Nothing will be * done with them until the widget is built. * * TODO: perhaps commit and abort should just be signals. **/ void e_config_add_items (EConfig *ec, GSList *items, EConfigItemsFunc freefunc, gpointer data) { struct _menu_node *node; node = g_malloc (sizeof (*node)); node->menu = items; node->free = freefunc; node->data = data; ec->priv->menus = g_list_append (ec->priv->menus, node); } /** * e_config_add_page_check: * @config: Initialised implemeting instance of EConfig. * @pageid: pageid to check. * @func: checking callback. * @data: user-data for the callback. * * Add a page-checking function callback. It will be called to validate the * data in the given page or pages. If @pageid is NULL then it will be called * to validate every page, or the whole configuration window. * * In the latter case, the pageid in the callback will be either the * specific page being checked, or NULL when the whole config window * is being checked. * * The page check function is used to validate input before allowing * the assistant to continue or the notebook to close. **/ void e_config_add_page_check (EConfig *ec, const gchar *pageid, EConfigCheckFunc func, gpointer data) { struct _check_node *cn; cn = g_slice_new0 (struct _check_node); cn->pageid = g_strdup (pageid); cn->func = func; cn->data = data; ec->priv->checks = g_list_append (ec->priv->checks, cn); } static void ec_add_static_items (EConfig *config) { EConfigClass *class; GList *link; class = E_CONFIG_GET_CLASS (config); for (link = class->factories; link != NULL; link = link->next) { EConfigFactory *factory = link->data; if (factory->id == NULL || strcmp (factory->id, config->id) == 0) factory->func (config, factory->user_data); } } static gint ep_cmp (gconstpointer ap, gconstpointer bp) { struct _widget_node *a = *((gpointer *) ap); struct _widget_node *b = *((gpointer *) bp); return strcmp (a->item->path, b->item->path); } static void ec_widget_destroyed (GtkWidget *widget, struct _widget_node *node) { /* Use our own function instead of gtk_widget_destroyed() * so it's easier to trap EConfig widgets in a debugger. */ node->widget = NULL; } static void ec_rebuild (EConfig *config) { EConfigPrivate *p = config->priv; struct _widget_node *sectionnode = NULL, *pagenode = NULL; GtkWidget *book = NULL, *page = NULL, *section = NULL, *root = NULL; gint pageno = 0, sectionno = 0, itemno = 0; gint n_visible_widgets = 0; GList *link; d (printf ("target changed, rebuilding:\n")); /* TODO: This code is pretty complex, and will probably just * become more complex with time. It could possibly be split * into the two base types, but there would be a lot of code * duplication */ /* because rebuild destroys pages, and destroying active page causes crashes */ for (link = p->widgets; link != NULL; link = g_list_next (link)) { struct _widget_node *wn = link->data; struct _EConfigItem *item = wn->item; const gchar *translated_label = NULL; GtkWidget *w; d (printf (" '%s'\n", item->path)); if (item->label != NULL) translated_label = gettext (item->label); /* If the last section doesn't contain any visible widgets, hide it */ if (sectionnode != NULL && sectionnode->frame != NULL && (item->type == E_CONFIG_PAGE || item->type == E_CONFIG_SECTION || item->type == E_CONFIG_SECTION_TABLE)) { if ((sectionnode->empty = (itemno == 0 || n_visible_widgets == 0))) { if (sectionnode->real_frame) gtk_widget_hide (sectionnode->real_frame); if (sectionnode->frame) gtk_widget_hide (sectionnode->frame); sectionno--; } else { if (sectionnode->real_frame) gtk_widget_show (sectionnode->real_frame); if (sectionnode->frame) gtk_widget_show (sectionnode->frame); } d (printf ("%s section '%s' [sections=%d]\n", sectionnode->empty?"hiding":"showing", sectionnode->item->path, sectionno)); } /* If the last page doesn't contain anything, hide it */ if (pagenode != NULL && pagenode->frame != NULL && item->type == E_CONFIG_PAGE) { if ((pagenode->empty = sectionno == 0)) { gtk_widget_hide (pagenode->frame); pageno--; } else gtk_widget_show (pagenode->frame); d (printf ("%s page '%s' [section=%d]\n", pagenode->empty?"hiding":"showing", pagenode->item->path, pageno)); } /* Now process the item */ switch (item->type) { case E_CONFIG_BOOK: /* This is used by the defining code to mark the * type of the config window. It is cross-checked * with the code's defined type. */ if (root != NULL) { g_warning ("EConfig book redefined at: %s", item->path); break; } if (wn->widget == NULL) { if (item->factory) { root = item->factory ( config, item, NULL, wn->widget, 0, wn->context->data); } else { root = gtk_notebook_new (); gtk_notebook_set_show_border (GTK_NOTEBOOK (root), FALSE); gtk_widget_show (root); } config->widget = root; wn->widget = root; } else { root = wn->widget; } book = root; page = NULL; pagenode = NULL; section = NULL; sectionnode = NULL; pageno = 0; sectionno = 0; break; case E_CONFIG_PAGE: /* The page is a VBox, stored in the notebook. */ sectionno = 0; if (root == NULL) { g_warning ("EConfig page defined before container widget: %s", item->path); break; } if (item->factory) { page = item->factory ( config, item, root, wn->frame, pageno, wn->context->data); wn->frame = page; if (page) gtk_notebook_reorder_child ((GtkNotebook *) book, page, pageno); if (page) sectionno = 1; } else if (wn->widget == NULL) { w = gtk_label_new_with_mnemonic (translated_label); gtk_widget_show (w); page = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12); gtk_container_set_border_width ((GtkContainer *) page, 12); gtk_widget_show (page); gtk_notebook_insert_page ((GtkNotebook *) book, page, w, pageno); gtk_container_child_set (GTK_CONTAINER (book), page, "tab-fill", FALSE, "tab-expand", FALSE, NULL); wn->frame = page; } else page = wn->widget; d (printf ("page %d:%s widget %p\n", pageno, item->path, page)); if (wn->widget && wn->widget != page) { d (printf ("destroy old widget for page '%s' (%p)\n", item->path, wn->widget)); gtk_widget_destroy (wn->widget); } pageno++; pagenode = wn; section = NULL; sectionnode = NULL; wn->widget = page; if (page) g_signal_connect ( page, "destroy", G_CALLBACK (ec_widget_destroyed), wn); break; case E_CONFIG_SECTION: case E_CONFIG_SECTION_TABLE: /* The section factory is always called with * the parent vbox object. Even for assistant pages. */ if (page == NULL) { /*g_warning("EConfig section '%s' has no parent page", item->path);*/ section = NULL; wn->widget = NULL; wn->frame = NULL; goto nopage; } itemno = 0; n_visible_widgets = 0; d (printf ("Building section %s - '%s' - %s factory\n", item->path, item->label, item->factory ? "with" : "without")); if (item->factory) { /* For sections, we pass an extra argument to the usual EConfigItemFactoryFunc. * If this is an automatically-generated section, that extra argument (real_frame from * EConfigItemSectionFactoryFunc) will contain the actual GtkFrame upon returning. */ EConfigItemSectionFactoryFunc factory = (EConfigItemSectionFactoryFunc) item->factory; section = factory ( config, item, page, wn->widget, 0, wn->context->data, &wn->real_frame); wn->frame = section; if (section) itemno = 1; if (factory != config_hook_section_factory) { /* This means there is a section that came from a user-specified factory, * so we don't know what is inside the section. In that case, we increment * n_visible_widgets so that the section will not get hidden later (we don't know * if the section is empty or not, so we cannot decide to hide it). * * For automatically-generated sections, we use a special config_hook_section_factory() - * see config_hook_construct_item(). */ n_visible_widgets++; d (printf (" n_visible_widgets++ because there is a section factory -> frame=%p\n", section)); } if (section && ((item->type == E_CONFIG_SECTION && !GTK_IS_BOX (section)) || (item->type == E_CONFIG_SECTION_TABLE && !GTK_IS_TABLE (section)))) g_warning ("EConfig section type is wrong"); } else { GtkWidget *frame; GtkWidget *label = NULL; if (wn->frame) { d (printf ("Item %s, clearing generated section widget\n", wn->item->path)); gtk_widget_destroy (wn->frame); wn->widget = NULL; wn->frame = NULL; } if (translated_label != NULL) { gchar *txt = g_markup_printf_escaped ("%s", translated_label); label = g_object_new ( gtk_label_get_type (), "label", txt, "use_markup", TRUE, "xalign", 0.0, NULL); g_free (txt); } if (item->type == E_CONFIG_SECTION) section = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6); else { section = gtk_table_new (1, 1, FALSE); gtk_table_set_col_spacings ((GtkTable *) section, 6); gtk_table_set_row_spacings ((GtkTable *) section, 6); } frame = g_object_new ( gtk_frame_get_type (), "shadow_type", GTK_SHADOW_NONE, "label_widget", label, "child", g_object_new (gtk_alignment_get_type (), "left_padding", 12, "top_padding", 6, "child", section, NULL), NULL); gtk_widget_show_all (frame); gtk_box_pack_start ((GtkBox *) page, frame, FALSE, FALSE, 0); wn->frame = frame; } nopage: if (wn->widget && wn->widget != section) { d (printf ("destroy old widget for section '%s'\n", item->path)); gtk_widget_destroy (wn->widget); } d (printf ("Item %s, setting section widget\n", wn->item->path)); sectionno++; wn->widget = section; if (section) g_signal_connect ( section, "destroy", G_CALLBACK (ec_widget_destroyed), wn); sectionnode = wn; break; case E_CONFIG_ITEM: case E_CONFIG_ITEM_TABLE: /* generated sections never retain their widgets on a rebuild */ if (sectionnode && sectionnode->item->factory == NULL) wn->widget = NULL; /* ITEMs are called with the section parent. * The type depends on the section type, * either a GtkTable, or a GtkVBox */ w = NULL; if (section == NULL) { wn->widget = NULL; wn->frame = NULL; g_warning ("EConfig item has no parent section: %s", item->path); } else if ((item->type == E_CONFIG_ITEM && !GTK_IS_BOX (section)) || (item->type == E_CONFIG_ITEM_TABLE && !GTK_IS_TABLE (section))) g_warning ("EConfig item parent type is incorrect: %s", item->path); else if (item->factory) w = item->factory ( config, item, section, wn->widget, 0, wn->context->data); if (wn->widget && wn->widget != w) { d (printf ("destroy old widget for item '%s'\n", item->path)); gtk_widget_destroy (wn->widget); } wn->widget = w; if (w) { g_signal_connect ( w, "destroy", G_CALLBACK (ec_widget_destroyed), wn); itemno++; if (gtk_widget_get_visible (w)) n_visible_widgets++; } break; } } /* If the last section doesn't contain any visible widgets, hide it */ if (sectionnode != NULL && sectionnode->frame != NULL) { d (printf ("Section %s - %d visible widgets (frame=%p)\n", sectionnode->item->path, n_visible_widgets, sectionnode->frame)); if ((sectionnode->empty = (itemno == 0 || n_visible_widgets == 0))) { if (sectionnode->real_frame) gtk_widget_hide (sectionnode->real_frame); if (sectionnode->frame) gtk_widget_hide (sectionnode->frame); sectionno--; } else { if (sectionnode->real_frame) gtk_widget_show (sectionnode->real_frame); if (sectionnode->frame) gtk_widget_show (sectionnode->frame); } d (printf ("%s section '%s' [sections=%d]\n", sectionnode->empty?"hiding":"showing", sectionnode->item->path, sectionno)); } /* If the last page doesn't contain anything, hide it */ if (pagenode != NULL && pagenode->frame != NULL) { if ((pagenode->empty = sectionno == 0)) { gtk_widget_hide (pagenode->frame); pageno--; } else gtk_widget_show (pagenode->frame); d (printf ("%s page '%s' [section=%d]\n", pagenode->empty?"hiding":"showing", pagenode->item->path, pageno)); } if (book) { /* make this depend on flags?? */ if (gtk_notebook_get_n_pages ((GtkNotebook *) book) == 1) { gtk_notebook_set_show_tabs ((GtkNotebook *) book, FALSE); gtk_notebook_set_show_border ((GtkNotebook *) book, FALSE); } } } /** * e_config_set_target: * @config: An initialised EConfig. * @target: A target allocated from @config. * * Sets the target object for the config window. Generally the target * is set only once, and will supply its own "changed" signal which * can be used to drive the modal. This is a virtual method so that * the implementing class can connect to the changed signal and * initiate a e_config_target_changed() call where appropriate. **/ void e_config_set_target (EConfig *config, EConfigTarget *target) { if (config->target != target) E_CONFIG_GET_CLASS (config)->set_target (config, target); } static void ec_widget_destroy (GtkWidget *w, EConfig *ec) { if (ec->target) { e_config_target_free (ec, ec->target); ec->target = NULL; } g_object_unref (ec); } /** * e_config_create_widget: * @config: An initialised EConfig object. * * Create the #GtkNotebook described by @config. * * This object will be self-driving, but will not close itself once * complete. * * Unless reffed otherwise, the management object @config will be * finalized when the widget is. * * Return value: The widget, also available in @config.widget **/ GtkWidget * e_config_create_widget (EConfig *config) { EConfigPrivate *p = config->priv; GPtrArray *items = g_ptr_array_new (); GList *link; GSList *l; gint i; g_return_val_if_fail (config->target != NULL, NULL); ec_add_static_items (config); /* FIXME: need to override old ones with new names */ link = p->menus; while (link != NULL) { struct _menu_node *mnode = link->data; for (l = mnode->menu; l; l = l->next) { struct _EConfigItem *item = l->data; struct _widget_node *wn = g_malloc0 (sizeof (*wn)); wn->item = item; wn->context = mnode; wn->config = config; g_ptr_array_add (items, wn); } link = g_list_next (link); } qsort (items->pdata, items->len, sizeof (items->pdata[0]), ep_cmp); for (i = 0; i < items->len; i++) p->widgets = g_list_append (p->widgets, items->pdata[i]); g_ptr_array_free (items, TRUE); ec_rebuild (config); /* auto-unref it */ g_signal_connect ( config->widget, "destroy", G_CALLBACK (ec_widget_destroy), config); /* FIXME: for some reason ec_rebuild puts the widget on page 1, this is just to override that */ gtk_notebook_set_current_page ((GtkNotebook *) config->widget, 0); return config->widget; } static void ec_call_page_check (EConfig *config) { if (config->window) { if (e_config_page_check (config, NULL)) { gtk_dialog_set_response_sensitive ((GtkDialog *) config->window, GTK_RESPONSE_OK, TRUE); } else { gtk_dialog_set_response_sensitive ((GtkDialog *) config->window, GTK_RESPONSE_OK, FALSE); } } } static gboolean ec_idle_handler_for_rebuild (gpointer data) { EConfig *config = (EConfig *) data; ec_rebuild (config); ec_call_page_check (config); return FALSE; } /** * e_config_target_changed: * @config: an #EConfig * @how: an enum value indicating how the target has changed * * Indicate that the target has changed. This may be called by the * self-aware target itself, or by the driving code. If @how is * %E_CONFIG_TARGET_CHANGED_REBUILD, then the entire configuration * widget may be recreated based on the changed target. * * This is used to sensitise Assistant next/back buttons and the Apply * button for the Notebook mode. **/ void e_config_target_changed (EConfig *config, e_config_target_change_t how) { if (how == E_CONFIG_TARGET_CHANGED_REBUILD) { g_idle_add (ec_idle_handler_for_rebuild, config); } else { ec_call_page_check (config); } /* virtual method/signal? */ } /** * e_config_abort: * @config: an #EConfig * * Signify that the stateful configuration changes must be discarded * to all listeners. This is used by self-driven assistant or notebook, or * may be used by code using the widget directly. **/ void e_config_abort (EConfig *config) { g_return_if_fail (E_IS_CONFIG (config)); g_signal_emit (config, signals[ABORT], 0); } /** * e_config_commit: * @config: an #EConfig * * Signify that the stateful configuration changes should be saved. * This is used by the self-driven assistant or notebook, or may be used * by code driving the widget directly. **/ void e_config_commit (EConfig *config) { g_return_if_fail (E_IS_CONFIG (config)); g_signal_emit (config, signals[COMMIT], 0); } /** * e_config_page_check: * @config: an #EConfig * @pageid: the path of the page item * * Check that a given page is complete. If @pageid is NULL, then check * the whole config. No check is made that the page actually exists. * * Return value: FALSE if the data is inconsistent/incomplete. **/ gboolean e_config_page_check (EConfig *config, const gchar *pageid) { GList *link; link = config->priv->checks; while (link != NULL) { struct _check_node *node = link->data; if ((pageid == NULL || node->pageid == NULL || strcmp (node->pageid, pageid) == 0) && !node->func (config, pageid, node->data)) { return FALSE; } link = g_list_next (link); } return TRUE; } /* ********************************************************************** */ /** * e_config_class_add_factory: * @klass: Implementing class pointer. * @id: The name of the configuration window you're interested in. * This may be NULL to be called for all windows. * @func: An EConfigFactoryFunc to call when the window @id is being created. * @user_data: Callback data. * * Add a config factory which will be called to add_items() any * extra items's if wants to, to the current Config window. * * TODO: Make the id a pattern? * * Return value: A handle to the factory. **/ EConfigFactory * e_config_class_add_factory (EConfigClass *klass, const gchar *id, EConfigFactoryFunc func, gpointer user_data) { EConfigFactory *factory; g_return_val_if_fail (E_IS_CONFIG_CLASS (klass), NULL); g_return_val_if_fail (func != NULL, NULL); factory = g_slice_new0 (EConfigFactory); factory->id = g_strdup (id); factory->func = func; factory->user_data = user_data; klass->factories = g_list_append (klass->factories, factory); return factory; } /** * e_config_target_new: * @config: an #EConfig * @type: type, up to implementor * @size: size of object to allocate * * Allocate a new config target suitable for this class. Implementing * classes will define the actual content of the target. **/ gpointer e_config_target_new (EConfig *config, gint type, gsize size) { EConfigTarget *target; if (size < sizeof (EConfigTarget)) { g_warning ("Size is less than size of EConfigTarget\n"); size = sizeof (EConfigTarget); } target = g_malloc0 (size); target->config = g_object_ref (config); target->type = type; return target; } /** * e_config_target_free: * @config: an #EConfig * @target: the target to free * * Free a target. The implementing class can override this method to * free custom targets. **/ void e_config_target_free (EConfig *config, gpointer target) { E_CONFIG_GET_CLASS (config)->target_free ( config, (EConfigTarget *) target); } /* ********************************************************************** */ /* Config menu plugin handler */ /* * * * * * * */ static const EPluginHookTargetKey config_hook_item_types[] = { { "book", E_CONFIG_BOOK }, { "page", E_CONFIG_PAGE }, { "section", E_CONFIG_SECTION }, { "section_table", E_CONFIG_SECTION_TABLE }, { "item", E_CONFIG_ITEM }, { "item_table", E_CONFIG_ITEM_TABLE }, { NULL }, }; G_DEFINE_TYPE ( EConfigHook, e_config_hook, E_TYPE_PLUGIN_HOOK) static void config_hook_commit (EConfig *ec, EConfigHookGroup *group) { if (group->commit && group->hook->hook.plugin->enabled) e_plugin_invoke (group->hook->hook.plugin, group->commit, ec->target); } static void config_hook_abort (EConfig *ec, EConfigHookGroup *group) { if (group->abort && group->hook->hook.plugin->enabled) e_plugin_invoke (group->hook->hook.plugin, group->abort, ec->target); } static gboolean config_hook_check (EConfig *ec, const gchar *pageid, gpointer data) { EConfigHookGroup *group = data; EConfigHookPageCheckData hdata; if (!group->hook->hook.plugin->enabled) return TRUE; hdata.config = ec; hdata.target = ec->target; hdata.pageid = pageid ? pageid:""; return GPOINTER_TO_INT (e_plugin_invoke (group->hook->hook.plugin, group->check, &hdata)); } static void config_hook_factory (EConfig *config, gpointer data) { EConfigHookGroup *group = data; d (printf ("config factory called %s\n", group->id ? group->id:"all menus")); if (config->target->type != group->target_type || !group->hook->hook.plugin->enabled) return; if (group->items) { e_config_add_items (config, group->items, NULL, group); g_signal_connect ( config, "abort", G_CALLBACK (config_hook_abort), group); g_signal_connect ( config, "commit", G_CALLBACK (config_hook_commit), group); } if (group->check) e_config_add_page_check (config, NULL, config_hook_check, group); } static void config_hook_free_item (struct _EConfigItem *item) { g_free (item->path); g_free (item->label); g_free (item->user_data); g_free (item); } static void config_hook_free_group (EConfigHookGroup *group) { g_slist_foreach (group->items, (GFunc) config_hook_free_item, NULL); g_slist_free (group->items); g_free (group->id); g_free (group); } static GtkWidget * config_hook_widget_factory (EConfig *config, EConfigItem *item, GtkWidget *parent, GtkWidget *old, gint position, gpointer data) { EConfigHookGroup *group = data; EConfigHookItemFactoryData factory_data; EPlugin *plugin; factory_data.config = config; factory_data.item = item; factory_data.target = config->target; factory_data.parent = parent; factory_data.old = old; factory_data.position = position; plugin = group->hook->hook.plugin; return e_plugin_invoke (plugin, item->user_data, &factory_data); } static GtkWidget * config_hook_section_factory (EConfig *config, EConfigItem *item, GtkWidget *parent, GtkWidget *old, gint position, gpointer data, GtkWidget **real_frame) { EConfigHookGroup *group = data; GtkWidget *label = NULL; GtkWidget *widget; EPlugin *plugin; if (item->label != NULL) { const gchar *translated; gchar *markup; translated = gettext (item->label); markup = g_markup_printf_escaped ("%s", translated); label = gtk_label_new (markup); gtk_label_set_use_markup (GTK_LABEL (label), TRUE); gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5); gtk_widget_show (label); g_free (markup); } widget = gtk_frame_new (NULL); gtk_frame_set_label_widget (GTK_FRAME (widget), label); gtk_frame_set_shadow_type (GTK_FRAME (widget), GTK_SHADOW_NONE); gtk_box_pack_start (GTK_BOX (parent), widget, FALSE, FALSE, 0); *real_frame = widget; /* This is why we have a custom factory for sections. * When the plugin is disabled the frame is invisible. */ plugin = group->hook->hook.plugin; g_object_bind_property ( plugin, "enabled", widget, "visible", G_BINDING_SYNC_CREATE); parent = widget; widget = gtk_alignment_new (0.0, 0.0, 1.0, 1.0); gtk_alignment_set_padding (GTK_ALIGNMENT (widget), 6, 0, 12, 0); gtk_container_add (GTK_CONTAINER (parent), widget); gtk_widget_show (widget); parent = widget; switch (item->type) { case E_CONFIG_SECTION: widget = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6); break; case E_CONFIG_SECTION_TABLE: widget = gtk_table_new (1, 1, FALSE); gtk_table_set_col_spacings (GTK_TABLE (widget), 6); gtk_table_set_row_spacings (GTK_TABLE (widget), 6); break; default: g_return_val_if_reached (NULL); } gtk_container_add (GTK_CONTAINER (parent), widget); gtk_widget_show (widget); return widget; } static struct _EConfigItem * config_hook_construct_item (EPluginHook *eph, EConfigHookGroup *menu, xmlNodePtr root, EConfigHookTargetMap *map) { struct _EConfigItem *item; d (printf (" loading config item\n")); item = g_malloc0 (sizeof (*item)); if ((item->type = e_plugin_hook_id (root, config_hook_item_types, "type")) == -1) goto error; item->path = e_plugin_xml_prop (root, "path"); item->label = e_plugin_xml_prop_domain (root, "label", eph->plugin->domain); item->user_data = e_plugin_xml_prop (root, "factory"); if (item->path == NULL || (item->label == NULL && item->user_data == NULL)) goto error; if (item->user_data) item->factory = config_hook_widget_factory; else if (item->type == E_CONFIG_SECTION) item->factory = (EConfigItemFactoryFunc) config_hook_section_factory; else if (item->type == E_CONFIG_SECTION_TABLE) item->factory = (EConfigItemFactoryFunc) config_hook_section_factory; d (printf (" path=%s label=%s factory=%s\n", item->path, item->label, (gchar *) item->user_data)); return item; error: d (printf ("error!\n")); config_hook_free_item (item); return NULL; } static EConfigHookGroup * config_hook_construct_menu (EPluginHook *eph, xmlNodePtr root) { EConfigHookGroup *menu; xmlNodePtr node; EConfigHookTargetMap *map; EConfigHookClass *class; gchar *tmp; class = E_CONFIG_HOOK_GET_CLASS (eph); d (printf (" loading menu\n")); menu = g_malloc0 (sizeof (*menu)); tmp = (gchar *) xmlGetProp (root, (const guchar *)"target"); if (tmp == NULL) goto error; map = g_hash_table_lookup (class->target_map, tmp); xmlFree (tmp); if (map == NULL) goto error; menu->target_type = map->id; menu->id = e_plugin_xml_prop (root, "id"); if (menu->id == NULL) { g_warning ( "Plugin '%s' missing 'id' field in group for '%s'\n", eph->plugin->name, E_PLUGIN_HOOK_CLASS (class)->id); goto error; } menu->check = e_plugin_xml_prop (root, "check"); menu->commit = e_plugin_xml_prop (root, "commit"); menu->abort = e_plugin_xml_prop (root, "abort"); menu->hook = (EConfigHook *) eph; node = root->children; while (node) { if (0 == strcmp ((gchar *) node->name, "item")) { struct _EConfigItem *item; item = config_hook_construct_item (eph, menu, node, map); if (item) menu->items = g_slist_append (menu->items, item); } node = node->next; } return menu; error: config_hook_free_group (menu); return NULL; } static gint config_hook_construct (EPluginHook *eph, EPlugin *ep, xmlNodePtr root) { xmlNodePtr node; EConfigClass *class; EConfigHook *config_hook; config_hook = (EConfigHook *) eph; d (printf ("loading config hook\n")); if (((EPluginHookClass *) e_config_hook_parent_class)->construct (eph, ep, root) == -1) return -1; class = E_CONFIG_HOOK_GET_CLASS (eph)->config_class; node = root->children; while (node) { if (strcmp ((gchar *) node->name, "group") == 0) { EConfigHookGroup *group; group = config_hook_construct_menu (eph, node); if (group) { e_config_class_add_factory (class, group->id, config_hook_factory, group); config_hook->groups = g_slist_append (config_hook->groups, group); } } node = node->next; } eph->plugin = ep; return 0; } static void config_hook_finalize (GObject *object) { EConfigHook *config_hook = (EConfigHook *) object; g_slist_free_full ( config_hook->groups, (GDestroyNotify) config_hook_free_group); /* Chain up to parent's finalize() method. */ G_OBJECT_CLASS (e_config_hook_parent_class)->finalize (object); } static void e_config_hook_class_init (EConfigHookClass *class) { GObjectClass *object_class; EPluginHookClass *plugin_hook_class; object_class = G_OBJECT_CLASS (class); object_class->finalize = config_hook_finalize; plugin_hook_class = E_PLUGIN_HOOK_CLASS (class); plugin_hook_class->construct = config_hook_construct; /* this is actually an abstract implementation but list it anyway */ plugin_hook_class->id = "org.gnome.evolution.config:1.0"; class->target_map = g_hash_table_new (g_str_hash, g_str_equal); class->config_class = g_type_class_ref (e_config_get_type ()); } static void e_config_hook_init (EConfigHook *hook) { } /** * e_config_hook_class_add_target_map: * * @hook_class: The dervied #EConfigHook class. * @map: A map used to describe a single EConfigTarget type for this class. * * Add a targe tmap to a concrete derived class of EConfig. The * target map enumates the target types available for the implenting * class. **/ void e_config_hook_class_add_target_map (EConfigHookClass *hook_class, const EConfigHookTargetMap *map) { g_hash_table_insert ( hook_class->target_map, (gpointer) map->type, (gpointer) map); }