/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * e-search-bar.c * * Copyright (C) 2000, 2001 Ximian, Inc. * * Authors: * Chris Lahey * Ettore Perazzoli * Jon Trowbridge * * This library 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 library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #include #include #include #include #include #include #include #include #include #include #include "e-search-bar.h" #include "e-dropdown-button.h" enum { QUERY_CHANGED, MENU_ACTIVATED, LAST_SIGNAL }; static gint esb_signals [LAST_SIGNAL] = { 0, }; static GtkHBoxClass *parent_class = NULL; /* The arguments we take */ enum { ARG_0, ARG_OPTION_CHOICE, ARG_SUBOPTION_CHOICE, ARG_TEXT, }; /* Signals. */ static void emit_query_changed (ESearchBar *esb) { if (esb->pending_change) { gtk_idle_remove (esb->pending_change); esb->pending_change = 0; } gtk_signal_emit (GTK_OBJECT (esb), esb_signals [QUERY_CHANGED]); } static void emit_menu_activated (ESearchBar *esb, int item) { gtk_signal_emit (GTK_OBJECT (esb), esb_signals [MENU_ACTIVATED], item); } /* Callbacks. */ static void menubar_activated_cb (GtkWidget *widget, ESearchBar *esb) { int id; id = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (widget), "EsbMenuId")); emit_menu_activated (esb, id); } static void entry_activated_cb (GtkWidget *widget, ESearchBar *esb) { emit_query_changed (esb); } static void subitem_activated_cb (GtkWidget *widget, ESearchBar *esb) { gint id, subid; id = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (widget), "EsbItemId")); subid = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (widget), "EsbSubitemId")); esb->option_choice = id; esb->suboption_choice = subid; emit_query_changed (esb); } static void activate_by_subitems (ESearchBar *esb, gint item_id, ESearchBarSubitem *subitems) { if (subitems == NULL) { /* This item uses the entry. */ if (esb->entry == NULL) { esb->entry = gtk_entry_new(); gtk_object_ref (GTK_OBJECT (esb->entry)); gtk_signal_connect (GTK_OBJECT (esb->entry), "activate", GTK_SIGNAL_FUNC (entry_activated_cb), esb); gtk_widget_show(esb->entry); esb->suboption_choice = 0; } if (esb->suboption_choice >= 0) { if (esb->suboption != NULL) { gtk_container_remove (GTK_CONTAINER (esb->entry_box), esb->suboption); } gtk_container_add (GTK_CONTAINER (esb->entry_box), esb->entry); } gtk_entry_set_text (GTK_ENTRY (esb->entry), ""); esb->suboption_choice = -1; } else { GtkWidget *menu; GtkWidget *menu_item; gint i; if (esb->suboption == NULL) { esb->suboption = gtk_option_menu_new (); gtk_object_ref (GTK_OBJECT (esb->suboption)); gtk_widget_show (esb->suboption); } esb->suboption_menu = menu = gtk_menu_new (); for (i = 0; subitems[i].id != -1; ++i) { if (subitems[i].text) { char *str; if (subitems[i].translate) str = _(subitems[i].text); else str = subitems[i].text; menu_item = gtk_menu_item_new_with_label (str); } else { menu_item = gtk_menu_item_new (); gtk_widget_set_sensitive (menu_item, FALSE); } gtk_object_set_data (GTK_OBJECT (menu_item), "EsbItemId", GINT_TO_POINTER (item_id)); gtk_object_set_data (GTK_OBJECT (menu_item), "EsbSubitemId", GINT_TO_POINTER (subitems[i].id)); gtk_signal_connect (GTK_OBJECT (menu_item), "activate", GTK_SIGNAL_FUNC (subitem_activated_cb), esb); gtk_widget_show (menu_item); gtk_menu_append (GTK_MENU (menu), menu_item); } gtk_option_menu_remove_menu (GTK_OPTION_MENU (esb->suboption)); gtk_option_menu_set_menu (GTK_OPTION_MENU (esb->suboption), menu); if (esb->entry != NULL) { gtk_container_remove (GTK_CONTAINER (esb->entry_box), esb->entry); } gtk_container_add (GTK_CONTAINER (esb->entry_box), esb->suboption); esb->suboption_choice = subitems[0].id; } if (esb->activate_button) { gtk_widget_set_sensitive (esb->activate_button, subitems == NULL); } } static void option_activated_cb (GtkWidget *widget, ESearchBar *esb) { int id; id = GPOINTER_TO_INT (gtk_object_get_data (GTK_OBJECT (widget), "EsbChoiceId")); activate_by_subitems (esb, id, gtk_object_get_data (GTK_OBJECT (widget), "EsbChoiceSubitems")); esb->option_choice = id; emit_query_changed (esb); } static void activate_button_clicked_cb (GtkWidget *widget, ESearchBar *esb) { emit_query_changed (esb); } /* Widgetry creation. */ /* This function exists to fix the irreparable GtkOptionMenu stupidity. In fact, this lame-ass widget adds a 1-pixel-wide empty border around the button for no reason. So we have add a 1-pixel-wide border around the the buttons we have in the search bar to make things look right. This is done through an event box. */ static GtkWidget * put_in_spacer_widget (GtkWidget *widget) { GtkWidget *holder; holder = gtk_event_box_new (); gtk_container_set_border_width (GTK_CONTAINER (holder), 1); gtk_container_add (GTK_CONTAINER (holder), widget); return holder; } static ESearchBarSubitem * copy_subitems (ESearchBarSubitem *subitems) { gint i, N; ESearchBarSubitem *copy; if (subitems == NULL) return NULL; for (N=0; subitems[N].id != -1; ++N); copy = g_new (ESearchBarSubitem, N+1); for (i=0; idropdown_menu; GtkWidget *item; if (items->text) { char *str; str = _(items->text); if (str == items->text) { /* It may be english string, or utf8 rule name */ item = e_utf8_gtk_menu_item_new_with_label (GTK_MENU (menu), str); } else item = gtk_menu_item_new_with_label (str); } else { item = gtk_menu_item_new(); gtk_widget_set_sensitive (item, FALSE); } gtk_widget_show (item); gtk_menu_append (GTK_MENU (menu), item); gtk_object_set_data (GTK_OBJECT (item), "EsbMenuId", GINT_TO_POINTER (items->id)); gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (menubar_activated_cb), esb); } static void set_dropdown (ESearchBar *esb, ESearchBarItem *items) { GtkWidget *menu; GtkWidget *dropdown; int i; menu = esb->dropdown_menu = gtk_menu_new (); for (i = 0; items[i].id != -1; i++) add_dropdown (esb, items + i); gtk_widget_show_all (menu); dropdown = e_dropdown_button_new (_("Sear_ch"), GTK_MENU (menu)); gtk_widget_show (dropdown); if (esb->dropdown_holder == NULL) { /* See the comment in `put_in_spacer_widget()' to understand why we have to do this. */ esb->dropdown_holder = put_in_spacer_widget (dropdown); esb->dropdown = dropdown; gtk_widget_show (esb->dropdown_holder); gtk_box_pack_start (GTK_BOX (esb), esb->dropdown_holder, FALSE, FALSE, 0); } else { gtk_widget_destroy (esb->dropdown); esb->dropdown = dropdown; gtk_container_add (GTK_CONTAINER (esb->dropdown_holder), esb->dropdown); } } /* Frees an array of subitem information */ static void free_subitems (ESearchBarSubitem *subitems) { ESearchBarSubitem *s; g_assert (subitems != NULL); for (s = subitems; s->id != -1; s++) { if (s->text) g_free (s->text); } g_free (subitems); } /* Callback used when an option item is destroyed. We have to destroy its * suboption items. */ static void option_item_destroy_cb (GtkObject *object, gpointer data) { ESearchBarSubitem *subitems; subitems = data; g_assert (subitems != NULL); free_subitems (subitems); gtk_object_set_data (object, "EsbChoiceSubitems", NULL); } static void set_option (ESearchBar *esb, ESearchBarItem *items) { GtkWidget *menu; GtkRequisition dropdown_requisition; GtkRequisition option_requisition; int i; if (esb->option) { gtk_widget_destroy (esb->option_menu); } else { esb->option = gtk_option_menu_new (); gtk_widget_show (esb->option); gtk_box_pack_start (GTK_BOX (esb), esb->option, FALSE, FALSE, 0); } esb->option_menu = menu = gtk_menu_new (); for (i = 0; items[i].id != -1; i++) { GtkWidget *item; ESearchBarSubitem *subitems = NULL; if (items[i].text) { char *str; str = _(items[i].text); if (str == items[i].text) { /* It may be english string, or utf8 rule name */ item = e_utf8_gtk_menu_item_new_with_label (GTK_MENU (menu), str); } else item = gtk_menu_item_new_with_label (str); } else { item = gtk_menu_item_new (); gtk_widget_set_sensitive (item, FALSE); } gtk_menu_append (GTK_MENU (menu), item); gtk_object_set_data (GTK_OBJECT (item), "EsbChoiceId", GINT_TO_POINTER(items[i].id)); if (items[i].subitems != NULL) { subitems = copy_subitems (items[i].subitems); gtk_object_set_data (GTK_OBJECT (item), "EsbChoiceSubitems", subitems); gtk_signal_connect (GTK_OBJECT (item), "destroy", GTK_SIGNAL_FUNC (option_item_destroy_cb), subitems); } if (i == 0) activate_by_subitems (esb, items[i].id, subitems); gtk_signal_connect (GTK_OBJECT (item), "activate", GTK_SIGNAL_FUNC (option_activated_cb), esb); } gtk_widget_show_all (menu); gtk_option_menu_set_menu (GTK_OPTION_MENU (esb->option), menu); gtk_option_menu_set_history (GTK_OPTION_MENU (esb->option), 0); gtk_widget_set_sensitive (esb->option, TRUE); /* Set the minimum height of this widget to that of the dropdown button, for a better look. */ g_assert (esb->dropdown != NULL); gtk_widget_size_request (esb->dropdown, &dropdown_requisition); gtk_widget_size_request (esb->option, &option_requisition); gtk_container_set_border_width (GTK_CONTAINER (esb->dropdown), GTK_CONTAINER (esb->option)->border_width); } static void add_activate_button (ESearchBar *esb) { GtkWidget *label; GtkWidget *holder; label = gtk_label_new (_("Find Now")); gtk_widget_show (label); /* See the comment in `put_in_spacer_widget()' to understand why we have to do this. */ esb->activate_button = gtk_button_new (); gtk_widget_show (esb->activate_button); gtk_container_add (GTK_CONTAINER (esb->activate_button), label); holder = put_in_spacer_widget (esb->activate_button); gtk_widget_show (holder); gtk_signal_connect (GTK_OBJECT (esb->activate_button), "clicked", GTK_SIGNAL_FUNC (activate_button_clicked_cb), esb); gtk_box_pack_start (GTK_BOX (esb), holder, FALSE, FALSE, 0); } static int find_id (GtkWidget *menu, int idin, const char *type, GtkWidget **widget) { GList *l = GTK_MENU_SHELL (menu)->children; int row = -1, i = 0, id; if (widget) *widget = NULL; while (l) { id = GPOINTER_TO_INT (gtk_object_get_data (l->data, type)); if (id == idin) { row = i; if (widget) *widget = l->data; break; } i++; l = l->next; } return row; } /* GtkObject methods. */ static void impl_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) { ESearchBar *esb = E_SEARCH_BAR (object); switch (arg_id) { case ARG_OPTION_CHOICE: GTK_VALUE_ENUM (*arg) = e_search_bar_get_option_choice (esb); break; case ARG_SUBOPTION_CHOICE: GTK_VALUE_ENUM (*arg) = e_search_bar_get_suboption_choice (esb); break; case ARG_TEXT: GTK_VALUE_STRING (*arg) = e_search_bar_get_text (esb); break; default: arg->type = GTK_TYPE_INVALID; break; } } static void impl_set_arg (GtkObject *object, GtkArg *arg, guint arg_id) { ESearchBar *esb = E_SEARCH_BAR(object); switch (arg_id) { case ARG_OPTION_CHOICE: e_search_bar_set_option_choice (esb, GTK_VALUE_ENUM (*arg)); break; case ARG_SUBOPTION_CHOICE: e_search_bar_set_suboption_choice (esb, GTK_VALUE_ENUM (*arg)); break; case ARG_TEXT: e_search_bar_set_text (esb, GTK_VALUE_STRING (*arg)); break; default: break; } } static void impl_destroy (GtkObject *object) { ESearchBar *esb = E_SEARCH_BAR (object); g_return_if_fail (object != NULL); g_return_if_fail (E_IS_SEARCH_BAR (object)); /* These two we do need to unref, because we explicitly hold references to them. */ if (esb->entry) gtk_object_unref (GTK_OBJECT (esb->entry)); if (esb->suboption) gtk_object_unref (GTK_OBJECT (esb->suboption)); if (esb->pending_change) { gtk_idle_remove (esb->pending_change); esb->pending_change = 0; } if (GTK_OBJECT_CLASS (parent_class)->destroy) GTK_OBJECT_CLASS (parent_class)->destroy (object); } static void class_init (ESearchBarClass *klass) { GtkObjectClass *object_class; object_class = GTK_OBJECT_CLASS (klass); parent_class = gtk_type_class (gtk_hbox_get_type ()); object_class->set_arg = impl_set_arg; object_class->get_arg = impl_get_arg; object_class->destroy = impl_destroy; klass->set_menu = set_dropdown; klass->set_option = set_option; gtk_object_add_arg_type ("ESearchBar::option_choice", GTK_TYPE_ENUM, GTK_ARG_READWRITE, ARG_OPTION_CHOICE); gtk_object_add_arg_type ("ESearchBar::suboption_choice", GTK_TYPE_ENUM, GTK_ARG_READWRITE, ARG_SUBOPTION_CHOICE); gtk_object_add_arg_type ("ESearchBar::text", GTK_TYPE_STRING, GTK_ARG_READWRITE, ARG_TEXT); esb_signals [QUERY_CHANGED] = gtk_signal_new ("query_changed", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (ESearchBarClass, query_changed), gtk_marshal_NONE__NONE, GTK_TYPE_NONE, 0); esb_signals [MENU_ACTIVATED] = gtk_signal_new ("menu_activated", GTK_RUN_LAST, object_class->type, GTK_SIGNAL_OFFSET (ESearchBarClass, menu_activated), gtk_marshal_NONE__INT, GTK_TYPE_NONE, 1, GTK_TYPE_INT); gtk_object_class_add_signals (object_class, esb_signals, LAST_SIGNAL); } static void init (ESearchBar *esb) { esb->dropdown = NULL; esb->option = NULL; esb->entry = NULL; esb->option_choice = 0; esb->suboption_choice = 0; } /* Object construction. */ static gint idle_change_hack (gpointer ptr) { ESearchBar *esb = E_SEARCH_BAR (ptr); esb->pending_change = 0; emit_query_changed (esb); return FALSE; } void e_search_bar_construct (ESearchBar *search_bar, ESearchBarItem *menu_items, ESearchBarItem *option_items) { g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); g_return_if_fail (menu_items != NULL); g_return_if_fail (option_items != NULL); gtk_box_set_spacing (GTK_BOX (search_bar), 1); e_search_bar_set_menu (search_bar, menu_items); search_bar->entry_box = gtk_hbox_new (0, FALSE); e_search_bar_set_option (search_bar, option_items); gtk_widget_show (search_bar->entry_box); gtk_box_pack_start (GTK_BOX(search_bar), search_bar->entry_box, TRUE, TRUE, 0); add_activate_button (search_bar); /* * If the default choice for the option menu has subitems, then we need to * activate the search immediately. However, the developer won't have * connected to the changed signal until after the object is constructed, * so we can't emit here. Thus we launch a one-shot idle function that will * emit the changed signal, so that the proper callback will get invoked. */ if (search_bar->suboption_choice >= 0) { gtk_widget_set_sensitive (search_bar->activate_button, FALSE); search_bar->pending_change = gtk_idle_add (idle_change_hack, search_bar); } } void e_search_bar_set_menu (ESearchBar *search_bar, ESearchBarItem *menu_items) { g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); g_return_if_fail (menu_items != NULL); ((ESearchBarClass *)((GtkObject *)search_bar)->klass)->set_menu (search_bar, menu_items); } void e_search_bar_add_menu (ESearchBar *search_bar, ESearchBarItem *menu_item) { g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); g_return_if_fail (menu_item != NULL); add_dropdown (search_bar, menu_item); } void e_search_bar_set_option (ESearchBar *search_bar, ESearchBarItem *option_items) { g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); g_return_if_fail (option_items != NULL); ((ESearchBarClass *)((GtkObject *)search_bar)->klass)->set_option (search_bar, option_items); } /** * e_search_bar_set_suboption: * @search_bar: A search bar. * @option_id: Identifier of the main option menu item under which the subitems * are to be set. * @subitems: Array of subitem information. * * Sets the items for the secondary option menu of a search bar. **/ void e_search_bar_set_suboption (ESearchBar *search_bar, int option_id, ESearchBarSubitem *subitems) { int row; GtkWidget *item; ESearchBarSubitem *old_subitems; ESearchBarSubitem *new_subitems; g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); row = find_id (search_bar->option_menu, option_id, "EsbChoiceId", &item); g_return_if_fail (row != -1); g_assert (item != NULL); old_subitems = gtk_object_get_data (GTK_OBJECT (item), "EsbChoiceSubitems"); if (old_subitems) { /* This was connected in set_option() */ gtk_signal_disconnect_by_data (GTK_OBJECT (item), old_subitems); free_subitems (old_subitems); gtk_object_set_data (GTK_OBJECT (item), "EsbChoiceSubitems", NULL); } if (subitems) { new_subitems = copy_subitems (subitems); gtk_object_set_data (GTK_OBJECT (item), "EsbChoiceSubitems", new_subitems); gtk_signal_connect (GTK_OBJECT (item), "destroy", GTK_SIGNAL_FUNC (option_item_destroy_cb), new_subitems); } else new_subitems = NULL; if (search_bar->option_choice == option_id) activate_by_subitems (search_bar, option_id, new_subitems); } GtkWidget * e_search_bar_new (ESearchBarItem *menu_items, ESearchBarItem *option_items) { GtkWidget *widget; g_return_val_if_fail (menu_items != NULL, NULL); g_return_val_if_fail (option_items != NULL, NULL); widget = GTK_WIDGET (gtk_type_new (e_search_bar_get_type ())); e_search_bar_construct (E_SEARCH_BAR (widget), menu_items, option_items); return widget; } void e_search_bar_set_menu_sensitive (ESearchBar *esb, int id, gboolean state) { int row; GtkWidget *widget; row = find_id (esb->dropdown_menu, id, "EsbMenuId", &widget); if (row != -1) gtk_widget_set_sensitive (widget, state); } GtkType e_search_bar_get_type (void) { static GtkType type = 0; if (!type) { static const GtkTypeInfo info = { "ESearchBar", sizeof (ESearchBar), sizeof (ESearchBarClass), (GtkClassInitFunc) class_init, (GtkObjectInitFunc) init, /* reserved_1 */ NULL, /* reserved_2 */ NULL, (GtkClassInitFunc) NULL, }; type = gtk_type_unique (gtk_hbox_get_type (), &info); } return type; } /** * e_search_bar_set_option_choice: * @search_bar: A search bar. * @id: Identifier of the item to set. * * Sets the active item in the options menu of a search bar. **/ void e_search_bar_set_option_choice (ESearchBar *search_bar, int id) { int row; g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); row = find_id (search_bar->option_menu, id, "EsbChoiceId", NULL); g_return_if_fail (row != -1); search_bar->option_choice = id; gtk_option_menu_set_history (GTK_OPTION_MENU (search_bar->option), row); emit_query_changed (search_bar); } /** * e_search_bar_get_option_choice: * @search_bar: A search bar. * * Queries the currently selected item in the options menu of a search bar. * * Return value: Identifier of the selected item in the options menu. **/ int e_search_bar_get_option_choice (ESearchBar *search_bar) { g_return_val_if_fail (search_bar != NULL, -1); g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), -1); return search_bar->option_choice; } void e_search_bar_set_suboption_choice (ESearchBar *search_bar, int id) { int row; g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); row = find_id (search_bar->suboption_menu, id, "EsbSubitemId", NULL); g_return_if_fail (row != -1); search_bar->suboption_choice = id; gtk_option_menu_set_history (GTK_OPTION_MENU (search_bar->suboption), row); emit_query_changed (search_bar); } /** * e_search_bar_get_suboption_choice: * @search_bar: A search bar. * * Queries the currently selected item in the suboptions menu of a search bar. * * Return value: Identifier of the selected item in the suboptions menu. * If the search bar currently contains an entry rather than a a suboption menu, * a value less than zero is returned. **/ int e_search_bar_get_suboption_choice (ESearchBar *search_bar) { g_return_val_if_fail (search_bar != NULL, -1); g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), -1); return search_bar->suboption_choice; } /** * e_search_bar_set_text: * @search_bar: A search bar. * @text: Text to set in the search bar's entry line. * * Sets the text string inside the entry line of a search bar. **/ void e_search_bar_set_text (ESearchBar *search_bar, const char *text) { g_return_if_fail (search_bar != NULL); g_return_if_fail (E_IS_SEARCH_BAR (search_bar)); e_utf8_gtk_editable_set_text (GTK_EDITABLE (search_bar->entry), text); emit_query_changed (search_bar); } /** * e_search_bar_get_text: * @search_bar: A search bar. * * Queries the text of the entry line in a search bar. * * Return value: The text string that is in the entry line of the search bar. * This must be freed using g_free(). If a suboption menu is active instead * of an entry, NULL is returned. **/ char * e_search_bar_get_text (ESearchBar *search_bar) { g_return_val_if_fail (search_bar != NULL, NULL); g_return_val_if_fail (E_IS_SEARCH_BAR (search_bar), NULL); return search_bar->suboption_choice < 0 ? e_utf8_gtk_editable_get_text (GTK_EDITABLE (search_bar->entry)) : NULL; }