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#include "e.h"
#define DBUS_MENU_IFACE "com.canonical.dbusmenu"
struct _E_DBusMenu_Ctx
{
Eldbus_Proxy *proxy;
E_DBusMenu_Item *root_menu;
void *data;
E_DBusMenu_Pop_Request_Cb pop_request_cb;
E_DBusMenu_Update_Cb update_cb;
Eina_Bool hacks E_BITFIELD;
};
static const char *Menu_Item_Type_Names[] =
{
"standard", "separator"
};
static const char *Menu_Item_Toggle_Type_Names[] =
{
"", "checkmark", "radio"
};
static const char *Menu_Item_Dispostion_Names[] =
{
"normal", "informative", "warning", "alert"
};
static const char *Menu_Item_Event_Names[] =
{
"clicked", "hovered", "opened", "closed"
};
static void proxy_init(E_DBusMenu_Ctx *ctx);
static int
id_find(const char *text, const char *array_of_names[], unsigned max)
{
unsigned int i;
for (i = 0; i < max; i++)
{
if (strcmp(text, array_of_names[i])) continue;
return i;
}
return 0;
}
static void
dbus_menu_prop_dict_cb(void *data, const void *key, Eldbus_Message_Iter *var)
{
E_DBusMenu_Item *m = data;
if (!strcmp(key, "label"))
{
const char *label;
Eina_Strbuf *label_buf = eina_strbuf_new();
int i;
eldbus_message_iter_arguments_get(var, "s", &label);
for (i = 0; label[i]; i++)
{
if (label[i] != '_')
{
eina_strbuf_append_char(label_buf, label[i]);
continue;
}
if (label[i + 1] == '_')
{
eina_strbuf_append_char(label_buf, label[i]);
i++;
continue;
}
}
eina_stringshare_replace(&m->label, eina_strbuf_string_get(label_buf));
eina_strbuf_free(label_buf);
}
else if (!strcmp(key, "type"))
{
const char *type;
eldbus_message_iter_arguments_get(var, "s", &type);
m->type = id_find(type, Menu_Item_Type_Names, E_DBUSMENU_ITEM_TYPE_LAST);
}
else if (!strcmp(key, "icon-data"))
{
Eldbus_Message_Iter *array;
int size;
const unsigned char *img_data;
eldbus_message_iter_arguments_get(var, "ay", &array);
eldbus_message_iter_fixed_array_get(array, 'y', &img_data, &size);
if (!size) return;
m->icon_data = malloc(sizeof(unsigned char) * size);
EINA_SAFETY_ON_FALSE_RETURN(m->icon_data);
memcpy(m->icon_data, img_data, size);
m->icon_data_size = size;
}
else if (!strcmp(key, "icon-name"))
{
const char *icon_name;
eldbus_message_iter_arguments_get(var, "s", &icon_name);
eina_stringshare_replace(&m->icon_name, icon_name);
}
else if (!strcmp(key, "toggle-type"))
{
const char *toggle_type;
eldbus_message_iter_arguments_get(var, "s", &toggle_type);
m->toggle_type = id_find(toggle_type, Menu_Item_Toggle_Type_Names,
E_DBUSMENU_ITEM_TOGGLE_TYPE_LAST);
}
else if (!strcmp(key, "toggle-state"))
{
int state;
eldbus_message_iter_arguments_get(var, "i", &state);
if (state == 1) m->toggle_state = EINA_TRUE;
else m->toggle_state = EINA_FALSE;
}
else if (!strcmp(key, "children-display"))
{
const char *display;
eldbus_message_iter_arguments_get(var, "s", &display);
if (!strcmp(display, "submenu")) m->is_submenu = EINA_TRUE;
else m->is_submenu = EINA_FALSE;
}
else if (!strcmp(key, "disposition"))
{
const char *disposition;
eldbus_message_iter_arguments_get(var, "s", &disposition);
m->disposition = id_find(disposition, Menu_Item_Dispostion_Names,
E_DBUSMENU_ITEM_DISPOSTION_LAST);
}
else if (!strcmp(key, "enabled"))
eldbus_message_iter_arguments_get(var, "b", &m->enabled);
else if (!strcmp(key, "visible"))
eldbus_message_iter_arguments_get(var, "b", &m->visible);
}
static E_DBusMenu_Item *
parse_layout(Eldbus_Message_Iter *layout, E_DBusMenu_Item *parent, E_DBusMenu_Ctx *ctx)
{
Eldbus_Message_Iter *menu_item_prop, *sub_menu_items_prop, *var;
E_DBusMenu_Item *m = calloc(1, sizeof(E_DBusMenu_Item));
EINA_SAFETY_ON_NULL_RETURN_VAL(m, NULL);
m->references = 1;
m->ctx = ctx;
m->enabled = EINA_TRUE;
m->visible = EINA_TRUE;
if (!eldbus_message_iter_arguments_get(layout, "ia{sv}av", &m->id,
&menu_item_prop, &sub_menu_items_prop))
{
ERR("Error reading message");
free(m);
return NULL;
}
eldbus_message_iter_dict_iterate(menu_item_prop, "sv", dbus_menu_prop_dict_cb, m);
while (eldbus_message_iter_get_and_next(sub_menu_items_prop, 'v', &var))
{
Eldbus_Message_Iter *st;
if (!eldbus_message_iter_arguments_get(var, "(ia{sv}av)", &st))
{
ERR("Error readding message.");
continue;
}
parse_layout(st, m, ctx);
}
if (!parent) return m;
parent->sub_items = eina_inlist_append(parent->sub_items, EINA_INLIST_GET(m));
m->parent = parent;
return NULL;
}
static void
dbus_menu_free(E_DBusMenu_Item *m)
{
Eina_Inlist *inlist;
E_DBusMenu_Item *child;
EINA_INLIST_FOREACH_SAFE(m->sub_items, inlist, child)
{
e_dbusmenu_item_unref(child);
}
EINA_INLIST_FREE(m->sub_items, child)
{
m->sub_items = eina_inlist_remove
(m->sub_items, EINA_INLIST_GET(child));
child->parent = NULL;
}
if (m->icon_name) eina_stringshare_del(m->icon_name);
if (m->label) eina_stringshare_del(m->label);
if (m->parent) m->parent->sub_items = eina_inlist_remove
(m->parent->sub_items, EINA_INLIST_GET(m));
if (m->icon_data_size) free(m->icon_data);
free(m);
}
static Eina_Bool
attempt_hacks(E_DBusMenu_Ctx *ctx)
{
/* https://phab.enlightenment.org/T3139 */
Eldbus_Object *obj;
Eldbus_Connection *conn;
const char *bus, *p;
int n;
char buf[1024] = {0}, buf2[1024 + 12] = {0};
if (ctx->hacks) return EINA_FALSE;
obj = eldbus_proxy_object_get(ctx->proxy);
conn = eldbus_object_connection_get(obj);
bus = eldbus_object_bus_name_get(obj);
if (bus[0] != ':') return EINA_FALSE;
/* if this is a qt5 app, menu bus is $bus + 2
* ...probably
*/
p = strchr(bus + 1, '.');
if (!p) return EINA_FALSE;
p++;
if (!p[0]) return EINA_FALSE;
n = strtol(p, NULL, 10);
if (n == -1) return EINA_FALSE;
n += 2;
if ((unsigned int)(p - bus) > sizeof(buf) - 1) return EINA_FALSE;
strncpy(buf, bus, p - bus);
snprintf(buf2, sizeof(buf2), "%s%d", buf, n);
E_FREE_FUNC(ctx->root_menu, e_dbusmenu_item_unref);
eldbus_proxy_unref(ctx->proxy);
eldbus_object_unref(obj);
obj = eldbus_object_get(conn, buf2, "/MenuBar");
ctx->proxy = eldbus_proxy_get(obj, DBUS_MENU_IFACE);
proxy_init(ctx);
ctx->hacks = 1;
return EINA_TRUE;
}
static void
layout_get_cb(void *data, const Eldbus_Message *msg, Eldbus_Pending *pending EINA_UNUSED)
{
E_DBusMenu_Item *m;
const char *error, *error_msg;
Eldbus_Message_Iter *layout;
unsigned revision;
E_DBusMenu_Ctx *ctx = data;
if (eldbus_message_error_get(msg, &error, &error_msg))
{
ERR("%s %s", error, error_msg);
return;
}
if (!eldbus_message_arguments_get(msg, "u(ia{sv}av)", &revision, &layout))
{
ERR("Error reading message");
return;
}
m = parse_layout(layout, NULL, ctx);
m->revision = revision;
if (m->is_submenu && (!m->parent) && (!m->sub_items))
{
if (attempt_hacks(ctx))
{
e_dbusmenu_item_unref(m);
return;
}
}
if (ctx->update_cb) ctx->update_cb(ctx->data, m);
if (ctx->root_menu) e_dbusmenu_item_unref(ctx->root_menu);
ctx->root_menu = m;
}
static E_DBusMenu_Item *
dbus_menu_find(E_DBusMenu_Ctx *ctx, int id)
{
E_DBusMenu_Item *m;
if (!ctx)
return NULL;
EINA_INLIST_FOREACH(ctx->root_menu, m)
{
E_DBusMenu_Item *child, *found;
if (m->id == id) return m;
EINA_INLIST_FOREACH(m->sub_items, child)
{
found = dbus_menu_find(ctx, id);
if (found) return found;
}
}
return NULL;
}
static void
menu_pop_request(void *data, const Eldbus_Message *msg)
{
E_DBusMenu_Ctx *ctx = data;
int id;
unsigned timestamp;
E_DBusMenu_Item *m;
if (!eldbus_message_arguments_get(msg, "iu", &id, &timestamp))
{
ERR("Error reading values.");
return;
}
m = dbus_menu_find(ctx, id);
if (!m) return;
if (ctx->pop_request_cb) ctx->pop_request_cb(ctx->data, m);
}
static void
prop_changed_cb(void *data EINA_UNUSED, const Eldbus_Message *msg)
{
const char *interface, *propname;
Eldbus_Message_Iter *variant, *array;
if (!eldbus_message_arguments_get(msg, "ssv", &interface, &propname, &variant))
{
ERR("Error getting values");
return;
}
if (strcmp(propname, "IconThemePath")) return;
if (!eldbus_message_iter_arguments_get(variant, "as", &array))
{
//TODO
}
}
static void
layout_update(E_DBusMenu_Ctx *ctx)
{
Eldbus_Message *msg;
Eldbus_Message_Iter *main_iter, *array;
msg = eldbus_proxy_method_call_new(ctx->proxy, "GetLayout");
main_iter = eldbus_message_iter_get(msg);
eldbus_message_iter_arguments_append(main_iter, "iias", 0, -1, &array);
eldbus_message_iter_container_close(main_iter, array);
eldbus_proxy_send(ctx->proxy, msg, layout_get_cb, ctx, -1);
}
static void
layout_updated_cb(void *data, const Eldbus_Message *msg EINA_UNUSED)
{
E_DBusMenu_Ctx *ctx = data;
layout_update(ctx);
}
static void
proxy_init(E_DBusMenu_Ctx *ctx)
{
layout_update(ctx);
eldbus_proxy_signal_handler_add(ctx->proxy,
"ItemActivationRequested",
menu_pop_request, ctx);
eldbus_proxy_properties_changed_callback_add(ctx->proxy,
prop_changed_cb, ctx);
eldbus_proxy_signal_handler_add(ctx->proxy, "ItemsPropertiesUpdated",
layout_updated_cb, ctx);
eldbus_proxy_signal_handler_add(ctx->proxy, "LayoutUpdated",
layout_updated_cb, ctx);
}
E_API E_DBusMenu_Ctx *
e_dbusmenu_load(Eldbus_Connection *conn, const char *bus, const char *path, const void *data)
{
Eldbus_Object *obj;
E_DBusMenu_Ctx *ctx;
EINA_SAFETY_ON_NULL_RETURN_VAL(bus, NULL);
EINA_SAFETY_ON_NULL_RETURN_VAL(path, NULL);
ctx = calloc(1, sizeof(E_DBusMenu_Ctx));
EINA_SAFETY_ON_NULL_RETURN_VAL(ctx, NULL);
ctx->data = (void *)data;
eldbus_connection_ref(conn);
obj = eldbus_object_get(conn, bus, path);
ctx->proxy = eldbus_proxy_get(obj, DBUS_MENU_IFACE);
proxy_init(ctx);
return ctx;
}
E_API void
e_dbusmenu_event_send(E_DBusMenu_Item *m, E_DBusMenu_Item_Event event)
{
Eldbus_Message *msg;
Eldbus_Message_Iter *main_iter, *var;
unsigned int timestamp = (unsigned int)time(NULL);
EINA_SAFETY_ON_NULL_RETURN(m);
EINA_SAFETY_ON_FALSE_RETURN(event < E_DBUSMENU_ITEM_EVENT_LAST);
EINA_SAFETY_ON_NULL_RETURN(m->ctx);
m->ctx->proxy = eldbus_proxy_ref(m->ctx->proxy);
msg = eldbus_proxy_method_call_new(m->ctx->proxy, "Event");
main_iter = eldbus_message_iter_get(msg);
eldbus_message_iter_arguments_append(main_iter, "is", m->id,
Menu_Item_Event_Names[event]);
var = eldbus_message_iter_container_new(main_iter, 'v', "s");
/* dummy data */
eldbus_message_iter_arguments_append(var, "s", "");
eldbus_message_iter_container_close(main_iter, var);
eldbus_message_iter_arguments_append(main_iter, "u", timestamp);
eldbus_proxy_send(m->ctx->proxy, msg, NULL, NULL, -1);
}
E_API void
e_dbusmenu_item_ref(E_DBusMenu_Item *m)
{
m->references++;
}
E_API void
e_dbusmenu_item_unref(E_DBusMenu_Item *m)
{
m->references--;
if (m->references == 0) dbus_menu_free(m);
}
E_API void
e_dbusmenu_unload(E_DBusMenu_Ctx *ctx)
{
Eldbus_Connection *conn;
Eldbus_Object *obj;
EINA_SAFETY_ON_NULL_RETURN(ctx);
if (ctx->root_menu) e_dbusmenu_item_unref(ctx->root_menu);
obj = eldbus_proxy_object_get(ctx->proxy);
conn = eldbus_object_connection_get(obj);
eldbus_proxy_unref(ctx->proxy);
eldbus_object_unref(obj);
eldbus_connection_unref(conn);
free(ctx);
}
E_API void
e_dbusmenu_pop_request_cb_set(E_DBusMenu_Ctx *ctx, E_DBusMenu_Pop_Request_Cb cb)
{
EINA_SAFETY_ON_NULL_RETURN(ctx);
ctx->pop_request_cb = cb;
}
E_API void
e_dbusmenu_update_cb_set(E_DBusMenu_Ctx *ctx, E_DBusMenu_Update_Cb cb)
{
EINA_SAFETY_ON_NULL_RETURN(ctx);
ctx->update_cb = cb;
}