gecko-dev/accessible/jsat/Constants.jsm

60 строки
1.5 KiB
JavaScript

const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
this.EXPORTED_SYMBOLS = ["Roles", "Events", "Relations",
"Filters", "States", "Prefilters"];
function ConstantsMap(aObject, aPrefix, aMap = {}, aModifier = null) {
let offset = aPrefix.length;
for (var name in aObject) {
if (name.indexOf(aPrefix) === 0) {
aMap[name.slice(offset)] = aModifier ?
aModifier(aObject[name]) : aObject[name];
}
}
return aMap;
}
XPCOMUtils.defineLazyGetter(
this, "Roles",
function() {
return ConstantsMap(Ci.nsIAccessibleRole, "ROLE_");
});
XPCOMUtils.defineLazyGetter(
this, "Events",
function() {
return ConstantsMap(Ci.nsIAccessibleEvent, "EVENT_");
});
XPCOMUtils.defineLazyGetter(
this, "Relations",
function() {
return ConstantsMap(Ci.nsIAccessibleRelation, "RELATION_");
});
XPCOMUtils.defineLazyGetter(
this, "Prefilters",
function() {
return ConstantsMap(Ci.nsIAccessibleTraversalRule, "PREFILTER_");
});
XPCOMUtils.defineLazyGetter(
this, "Filters",
function() {
return ConstantsMap(Ci.nsIAccessibleTraversalRule, "FILTER_");
});
XPCOMUtils.defineLazyGetter(
this, "States",
function() {
let statesMap = ConstantsMap(Ci.nsIAccessibleStates, "STATE_", {},
(val) => { return { base: val, extended: 0 }; });
ConstantsMap(Ci.nsIAccessibleStates, "EXT_STATE_", statesMap,
(val) => { return { base: 0, extended: val }; });
return statesMap;
});