/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Michael Zucchi <notzed@ximian.com>
*
* Copyright 2004 Ximian, Inc. (www.ximian.com)
*
* 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 Street #330, Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include <glib.h>
#include <gtk/gtkmenu.h>
#include <gtk/gtkmenuitem.h>
#include <gtk/gtkimagemenuitem.h>
#include <gtk/gtkcheckmenuitem.h>
#include <gtk/gtkradiomenuitem.h>
#include <gtk/gtkseparatormenuitem.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkimage.h>
#include "e-popup.h"
#include <e-util/e-icon-factory.h>
#include <libgnome/gnome-i18n.h>
struct _EPopupFactory {
struct _EPopupFactory *next, *prev;
char *menuid;
EPopupFactoryFunc factory;
void *factory_data;
};
/* Used for the "activate" signal callback data to re-map to the api */
struct _item_node {
struct _item_node *next;
EPopupItem *item;
struct _menu_node *menu;
};
/* Stores all the items added */
struct _menu_node {
struct _menu_node *next, *prev;
EPopup *popup;
GSList *menu;
EPopupItemsFunc freefunc;
void *data;
struct _item_node *items;
};
struct _EPopupPrivate {
EDList menus;
};
static GObjectClass *ep_parent;
static void
ep_init(GObject *o)
{
EPopup *emp = (EPopup *)o;
struct _EPopupPrivate *p;
p = emp->priv = g_malloc0(sizeof(struct _EPopupPrivate));
e_dlist_init(&p->menus);
}
static void
ep_finalise(GObject *o)
{
EPopup *emp = (EPopup *)o;
struct _EPopupPrivate *p = emp->priv;
struct _menu_node *mnode, *nnode;
mnode = (struct _menu_node *)p->menus.head;
nnode = mnode->next;
while (nnode) {
struct _item_node *inode;
if (mnode->freefunc)
mnode->freefunc(emp, mnode->menu, mnode->data);
/* free item activate callback data */
inode = mnode->items;
while (inode) {
struct _item_node *nnode = inode->next;
g_free(inode);
inode = nnode;
}
g_free(mnode);
mnode = nnode;
nnode = nnode->next;
}
if (emp->target)
e_popup_target_free(emp, emp->target);
g_free(emp->menuid);
g_free(p);
((GObjectClass *)ep_parent)->finalize(o);
}
static void
ep_target_free(EPopup *ep, EPopupTarget *t)
{
g_free(t);
g_object_unref(ep);
}
static void
ep_class_init(GObjectClass *klass)
{
printf("EPopup class init %p '%s'\n", klass, g_type_name(((GObjectClass *)klass)->g_type_class.g_type));
klass->finalize = ep_finalise;
((EPopupClass *)klass)->target_free = ep_target_free;
}
static void
ep_base_init(GObjectClass *klass)
{
e_dlist_init(&((EPopupClass *)klass)->factories);
}
/**
* e_popup_get_type:
*
* Standard GObject type function.
*
* Return value: The EPopup object type.
**/
GType
e_popup_get_type(void)
{
static GType type = 0;
if (type == 0) {
static const GTypeInfo info = {
sizeof(EPopupClass),
(GBaseInitFunc)ep_base_init, NULL,
(GClassInitFunc)ep_class_init, NULL, NULL,
sizeof(EPopup), 0,
(GInstanceInitFunc)ep_init
};
ep_parent = g_type_class_ref(G_TYPE_OBJECT);
type = g_type_register_static(G_TYPE_OBJECT, "EPopup", &info, 0);
}
return type;
}
/**
* e_popup_new - Create an targetless popup menu manager.
* @menuid: Unique ID for this menu.
*
* Create a targetless popup menu object. This can be used as a
* helper for creating popup menu's with no target. Such popup menu's
* wont be very pluggable.
*
* Return value: A new EPopup.
**/
EPopup *e_popup_new(const char *menuid)
{
EPopup *ep = g_object_new(e_popup_get_type(), NULL);
e_popup_construct(ep, menuid);
return ep;
}
/**
* e_popup_construct:
* @ep: An instantiated but uninitialised EPopup.
* @menuid: The menu identifier.
*
* Construct the base popup instance with standard parameters.
*
* Return value: Returns @ep.
**/
EPopup *e_popup_construct(EPopup *ep, const char *menuid)
{
ep->menuid = g_strdup(menuid);
return ep;
}
/**
* e_popup_add_items:
* @emp: An EPopup derived object.
* @items: A list of EPopupItem's to add to the current popup menu.
* @freefunc: A function which will be called when the items are no
* longer needed.
* @data: user-data passed to @freefunc, and passed to all activate
* methods.
*
* Add new EPopupItems to the menus. Any with the same path
* will override previously defined menu items, at menu building
* time. This may be called any number of times before the menu is
* built to create a complex heirarchy of menus.
**/
void
e_popup_add_items(EPopup *emp, GSList *items, EPopupItemsFunc freefunc, void *data)
{
struct _menu_node *node;
node = g_malloc0(sizeof(*node));
node->menu = items;
node->freefunc = freefunc;
node->data = data;
node->popup = emp;
e_dlist_addtail(&emp->priv->menus, (EDListNode *)node);
}
static void
ep_add_static_items(EPopup *emp)
{
struct _EPopupFactory *f;
EPopupClass *klass = (EPopupClass *)G_OBJECT_GET_CLASS(emp);
if (emp->menuid == NULL || emp->target == NULL)
return;
/* setup the menu itself */
f = (struct _EPopupFactory *)klass->factories.head;
while (f->next) {
if (f->menuid == NULL
|| !strcmp(f->menuid, emp->menuid)) {
f->factory(emp, f->factory_data);
}
f = f->next;
}
}
static int
ep_cmp(const void *ap, const void *bp)
{
struct _item_node *a = *((void **)ap);
struct _item_node *b = *((void **)bp);
return strcmp(a->item->path, b->item->path);
}
static void
ep_activate(GtkWidget *w, struct _item_node *inode)
{
EPopupItem *item = inode->item;
guint32 type = item->type & E_POPUP_TYPE_MASK;
/* this is a bit hackish, use the item->type to transmit the
active state, presumes we can write to this memory ... The
alternative is the EMenu idea of different callbacks, but
thats painful for breaking type-safety on callbacks */
if (type == E_POPUP_TOGGLE || type == E_POPUP_RADIO) {
if (gtk_check_menu_item_get_active((GtkCheckMenuItem *)w))
item->type |= E_POPUP_ACTIVE;
else
item->type &= ~E_POPUP_ACTIVE;
}
item->activate(inode->menu->popup, item, inode->menu->data);
}
/**
* e_popup_create:
* @emp: An EPopup derived object.
* @target: popup target, if set, then factories will be invoked.
* This is then owned by the menu.
* @mask: If supplied, overrides the target specified mask or provides
* a mask if no target is supplied. Used to enable or show menu
* items.
*
* All of the menu items registered on @emp are sorted by path, and
* then converted into a menu heirarchy.
*
*
* Return value: A GtkMenu which can be popped up when ready.
**/
GtkMenu *
e_popup_create_menu(EPopup *emp, EPopupTarget *target, guint32 mask)
{
struct _EPopupPrivate *p = emp->priv;
struct _menu_node *mnode, *nnode;
GPtrArray *items = g_ptr_array_new();
GSList *l;
GString *ppath = g_string_new("");
GtkMenu *topmenu;
GHashTable *menu_hash = g_hash_table_new(g_str_hash, g_str_equal),
*group_hash = g_hash_table_new(g_str_hash, g_str_equal);
int i;
emp->target = target;
ep_add_static_items(emp);
if (target && mask == 0)
mask = target->mask;
/* FIXME: need to override old ones with new names */
mnode = (struct _menu_node *)p->menus.head;
nnode = mnode->next;
while (nnode) {
for (l=mnode->menu; l; l = l->next) {
struct _item_node *inode = g_malloc0(sizeof(*inode));
inode->item = l->data;
inode->menu = mnode;
inode->next = mnode->items;
mnode->items = inode;
g_ptr_array_add(items, inode);
}
mnode = nnode;
nnode = nnode->next;
}
qsort(items->pdata, items->len, sizeof(items->pdata[0]), ep_cmp);
topmenu = (GtkMenu *)gtk_menu_new();
for (i=0;i<items->len;i++) {
GtkWidget *label;
struct _item_node *inode = items->pdata[i];
struct _EPopupItem *item = inode->item;
GtkMenu *thismenu;
GtkMenuItem *menuitem;
char *tmp;
/* for bar's, the mask is exclusive or */
if (item->visible) {
if ((item->type & E_POPUP_TYPE_MASK) == E_POPUP_BAR) {
if ((item->visible & mask) == item->visible)
continue;
} else if (item->visible & mask)
continue;
}
g_string_truncate(ppath, 0);
tmp = strrchr(item->path, '/');
if (tmp) {
g_string_append_len(ppath, item->path, tmp-item->path);
thismenu = g_hash_table_lookup(menu_hash, ppath->str);
g_assert(thismenu != NULL);
} else {
thismenu = topmenu;
}
switch (item->type & E_POPUP_TYPE_MASK) {
case E_POPUP_ITEM:
if (item->image) {
GdkPixbuf *pixbuf;
GtkWidget *image;
/* work-around e-icon-factory not doing GTK_STOCK stuff */
if (strncmp((char *)item->image, "gtk-", 4) == 0) {
image = gtk_image_new_from_stock((char *)item->image, GTK_ICON_SIZE_MENU);
} else {
pixbuf = e_icon_factory_get_icon((char *)item->image, E_ICON_SIZE_MENU);
image = gtk_image_new_from_pixbuf(pixbuf);
g_object_unref(pixbuf);
}
gtk_widget_show(image);
menuitem = (GtkMenuItem *)gtk_image_menu_item_new();
gtk_image_menu_item_set_image((GtkImageMenuItem *)menuitem, image);
} else {
menuitem = (GtkMenuItem *)gtk_menu_item_new();
}
break;
case E_POPUP_TOGGLE:
menuitem = (GtkMenuItem *)gtk_check_menu_item_new();
gtk_check_menu_item_set_active((GtkCheckMenuItem *)menuitem, item->type & E_POPUP_ACTIVE);
break;
case E_POPUP_RADIO:
menuitem = (GtkMenuItem *)gtk_radio_menu_item_new(g_hash_table_lookup(group_hash, ppath->str));
/* FIXME: need to strdup the string */
g_hash_table_insert(group_hash, ppath->str, gtk_radio_menu_item_get_group((GtkRadioMenuItem *)menuitem));
gtk_check_menu_item_set_active((GtkCheckMenuItem *)menuitem, item->type & E_POPUP_ACTIVE);
break;
case E_POPUP_IMAGE:
menuitem = (GtkMenuItem *)gtk_image_menu_item_new();
gtk_image_menu_item_set_image((GtkImageMenuItem *)menuitem, item->image);
break;
case E_POPUP_SUBMENU: {
GtkMenu *submenu = (GtkMenu *)gtk_menu_new();
g_hash_table_insert(menu_hash, item->path, submenu);
menuitem = (GtkMenuItem *)gtk_menu_item_new();
gtk_menu_item_set_submenu(menuitem, (GtkWidget *)submenu);
break; }
case E_POPUP_BAR:
/* TODO: double-bar, end-bar stuff? */
menuitem = (GtkMenuItem *)gtk_separator_menu_item_new();
break;
default:
continue;
}
if (item->label) {
label = gtk_label_new_with_mnemonic(_(item->label));
gtk_misc_set_alignment((GtkMisc *)label, 0.0, 0.5);
gtk_widget_show(label);
gtk_container_add((GtkContainer *)menuitem, label);
}
if (item->activate)
g_signal_connect(menuitem, "activate", G_CALLBACK(ep_activate), inode);
gtk_menu_shell_append((GtkMenuShell *)thismenu, (GtkWidget *)menuitem);
if (item->enable & mask)
gtk_widget_set_sensitive((GtkWidget *)menuitem, FALSE);
gtk_widget_show((GtkWidget *)menuitem);
}
g_string_free(ppath, TRUE);
g_ptr_array_free(items, TRUE);
g_hash_table_destroy(menu_hash);
g_hash_table_destroy(group_hash);
return topmenu;
}
static void
ep_popup_done(GtkWidget *w, EPopup *emp)
{
gtk_widget_destroy(w);
if (emp->target) {
e_popup_target_free(emp, emp->target);
emp->target = NULL;
}
g_object_unref(emp);
}
/**
* e_popup_create_menu_once:
* @emp: EPopup, once the menu is shown, this cannot be
* considered a valid pointer.
* @target: If set, the target of the selection. Static menu
* items will be added. The target will be freed once complete.
* @mask: Enable/disable and visibility mask.
*
* Like popup_create_menu, but automatically sets up the menu
* so that it is destroyed once a selection takes place, and
* the EPopup is unreffed. This is the normal entry point as it
* automates most memory management for popup menus.
*
* Return value: A menu, to popup.
**/
GtkMenu *
e_popup_create_menu_once(EPopup *emp, EPopupTarget *target, guint32 mask)
{
GtkMenu *menu;
menu = e_popup_create_menu(emp, target, mask);
g_signal_connect(menu, "selection_done", G_CALLBACK(ep_popup_done), emp);
return menu;
}
/* ********************************************************************** */
/**
* e_popup_class_add_factory:
* @klass: The EPopup derived class which you're interested in.
* @menuid: The identifier of the menu you're interested in, or NULL
* to be called for all menus on this class.
* @func: The factory called when the menu @menuid is being created.
* @data: User-data for the factory callback.
*
* This is a class-static method used to register factory callbacks
* against specific menu's.
*
* The factory method will be invoked before the menu is created.
* This way, the factory may add any additional menu items it wishes
* based on the context supplied in the @target.
*
* Return value: A handle to the factory which can be used to remove
* it later.
**/
EPopupFactory *
e_popup_class_add_factory(EPopupClass *klass, const char *menuid, EPopupFactoryFunc func, void *data)
{
struct _EPopupFactory *f = g_malloc0(sizeof(*f));
f->menuid = g_strdup(menuid);
f->factory = func;
f->factory_data = data;
e_dlist_addtail(&klass->factories, (EDListNode *)f);
return f;
}
/**
* e_popup_class_remove_factory:
* @klass: The EPopup derived class.
* @f: The factory handle returned by e_popup_class_add_factory().
*
* Remove a popup menu factory. If it has not been added, or it has
* already been removed, then the result is undefined (i.e. it will
* crash).
*
* Generally factories are static for the life of the application, and
* so do not need to be removed.
**/
void
e_popup_class_remove_factory(EPopupClass *klass, EPopupFactory *f)
{
e_dlist_remove((EDListNode *)f);
g_free(f->menuid);
g_free(f);
}
/**
* e_popup_target_new:
* @ep: An EPopup derived object.
* @type: type, defined by the implementing class.
* @size: The size of memory to allocate for the target. It must be
* equal or greater than the size of EPopupTarget.
*
* Allocate a new popup target suitable for this popup type.
**/
void *e_popup_target_new(EPopup *ep, int type, size_t size)
{
EPopupTarget *t;
g_assert(size >= sizeof(EPopupTarget));
t = g_malloc0(size);
t->popup = ep;
g_object_ref(ep);
t->type = type;
return t;
}
/**
* e_popup_target_free:
* @ep: An EPopup derived object.
* @o: The target, previously allocated by e_popup_target_new().
*
* Free the target against @ep. Note that targets are automatically
* freed if they are passed to the menu creation functions, so this is
* only required if you are using the target for other purposes.
**/
void
e_popup_target_free(EPopup *ep, void *o)
{
EPopupTarget *t = o;
((EPopupClass *)G_OBJECT_GET_CLASS(ep))->target_free(ep, t);
}
/* ********************************************************************** */
/* Popup menu plugin handler */
/*
<e-plugin
class="org.gnome.mail.plugin.popup:1.0"
id="org.gnome.mail.plugin.popup.item:1.0"
type="shlib"
location="/opt/gnome2/lib/camel/1.0/libcamelimap.so"
name="imap"
description="IMAP4 and IMAP4v1 mail store">
<hook class="org.gnome.mail.popupMenu:1.0"
handler="HandlePopup">
<menu id="any" target="select">
<item
type="item|toggle|radio|image|submenu|bar"
active
path="foo/bar"
label="label"
icon="foo"
visible="select_one"
activate="ep_view_emacs"/>
</menu>
</extension>
*/
static void *emph_parent_class;
#define emph ((EPopupHook *)eph)
/* must have 1:1 correspondence with e-popup types in order */
static const EPluginHookTargetKey emph_item_types[] = {
{ "item", E_POPUP_ITEM },
{ "toggle", E_POPUP_TOGGLE },
{ "radio", E_POPUP_RADIO },
{ "image", E_POPUP_IMAGE },
{ "submenu", E_POPUP_SUBMENU },
{ "bar", E_POPUP_BAR },
{ 0 }
};
static void
emph_popup_activate(EPopup *ep, EPopupItem *item, void *data)
{
EPopupHook *hook = data;
e_plugin_invoke(hook->hook.plugin, (char *)item->user_data, ep->target);
}
static void
emph_popup_factory(EPopup *emp, void *data)
{
struct _EPopupHookMenu *menu = data;
printf("popup factory called %s mask %08x\n", menu->id?menu->id:"all menus", emp->target->mask);
/* If we're disabled, then don't add the menu's. */
if (emp->target->type != menu->target_type
|| !menu->hook->hook.plugin->enabled)
return;
if (menu->items)
e_popup_add_items(emp, menu->items, NULL, menu->hook);
}
static void
emph_free_item(struct _EPopupItem *item)
{
g_free(item->path);
g_free(item->label);
g_free(item->image);
g_free(item->user_data);
g_free(item);
}
static void
emph_free_menu(struct _EPopupHookMenu *menu)
{
g_slist_foreach(menu->items, (GFunc)emph_free_item, NULL);
g_slist_free(menu->items);
g_free(menu->id);
g_free(menu);
}
static struct _EPopupItem *
emph_construct_item(EPluginHook *eph, EPopupHookMenu *menu, xmlNodePtr root, EPopupHookTargetMap *map)
{
struct _EPopupItem *item;
printf(" loading menu item\n");
item = g_malloc0(sizeof(*item));
if ((item->type = e_plugin_hook_id(root, emph_item_types, "type")) == -1
|| item->type == E_POPUP_IMAGE)
goto error;
item->path = e_plugin_xml_prop(root, "path");
item->label = e_plugin_xml_prop_domain(root, "label", eph->plugin->domain);
item->image = e_plugin_xml_prop(root, "icon");
item->visible = e_plugin_hook_mask(root, map->mask_bits, "visible");
item->enable = e_plugin_hook_mask(root, map->mask_bits, "enable");
item->user_data = e_plugin_xml_prop(root, "activate");
item->activate = emph_popup_activate;
if (item->user_data == NULL)
goto error;
printf(" path=%s\n", item->path);
printf(" label=%s\n", item->label);
return item;
error:
printf("error!\n");
emph_free_item(item);
return NULL;
}
static struct _EPopupHookMenu *
emph_construct_menu(EPluginHook *eph, xmlNodePtr root)
{
struct _EPopupHookMenu *menu;
xmlNodePtr node;
EPopupHookTargetMap *map;
EPopupHookClass *klass = (EPopupHookClass *)G_OBJECT_GET_CLASS(eph);
char *tmp;
printf(" loading menu\n");
menu = g_malloc0(sizeof(*menu));
menu->hook = (EPopupHook *)eph;
tmp = xmlGetProp(root, "target");
if (tmp == NULL)
goto error;
map = g_hash_table_lookup(klass->target_map, tmp);
xmlFree(tmp);
if (map == NULL)
goto error;
menu->target_type = map->id;
menu->id = e_plugin_xml_prop(root, "id");
node = root->children;
while (node) {
if (0 == strcmp(node->name, "item")) {
struct _EPopupItem *item;
item = emph_construct_item(eph, menu, node, map);
if (item)
menu->items = g_slist_append(menu->items, item);
}
node = node->next;
}
return menu;
error:
emph_free_menu(menu);
return NULL;
}
static int
emph_construct(EPluginHook *eph, EPlugin *ep, xmlNodePtr root)
{
xmlNodePtr node;
EPopupClass *klass;
printf("loading popup hook\n");
if (((EPluginHookClass *)emph_parent_class)->construct(eph, ep, root) == -1)
return -1;
klass = ((EPopupHookClass *)G_OBJECT_GET_CLASS(eph))->popup_class;
node = root->children;
while (node) {
if (strcmp(node->name, "menu") == 0) {
struct _EPopupHookMenu *menu;
menu = emph_construct_menu(eph, node);
if (menu) {
e_popup_class_add_factory(klass, menu->id, emph_popup_factory, menu);
emph->menus = g_slist_append(emph->menus, menu);
}
}
node = node->next;
}
eph->plugin = ep;
return 0;
}
static void
emph_finalise(GObject *o)
{
EPluginHook *eph = (EPluginHook *)o;
g_slist_foreach(emph->menus, (GFunc)emph_free_menu, NULL);
g_slist_free(emph->menus);
((GObjectClass *)emph_parent_class)->finalize(o);
}
static void
emph_class_init(EPluginHookClass *klass)
{
((GObjectClass *)klass)->finalize = emph_finalise;
klass->construct = emph_construct;
/* this is actually an abstract implementation but list it anyway */
klass->id = "org.gnome.evolution.popup:1.0";
printf("EPopupHook: init class %p '%s'\n", klass, g_type_name(((GObjectClass *)klass)->g_type_class.g_type));
((EPopupHookClass *)klass)->target_map = g_hash_table_new(g_str_hash, g_str_equal);
((EPopupHookClass *)klass)->popup_class = g_type_class_ref(e_popup_get_type());
}
/**
* e_popup_hook_get_type:
*
* Standard GObject function to get the object type. Used to subclass
* EPopupHook.
*
* Return value: The type of the popup hook class.
**/
GType
e_popup_hook_get_type(void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof(EPopupHookClass), NULL, NULL, (GClassInitFunc) emph_class_init, NULL, NULL,
sizeof(EPopupHook), 0, (GInstanceInitFunc) NULL,
};
emph_parent_class = g_type_class_ref(e_plugin_hook_get_type());
type = g_type_register_static(e_plugin_hook_get_type(), "EPopupHook", &info, 0);
}
return type;
}
/**
* e_popup_hook_class_add_target_map:
* @klass: The derived EPopupHook class.
* @map: A map used to describe a single EPopupTarget type for this
* class.
*
* Add a target map to a concrete derived class of EPopup. The target
* map enumerates a single target type and the enable mask bit names,
* so that the type can be loaded automatically by the EPopup class.
**/
void e_popup_hook_class_add_target_map(EPopupHookClass *klass, const EPopupHookTargetMap *map)
{
g_hash_table_insert(klass->target_map, (void *)map->type, (void *)map);
}
