71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
var attributes = require('./attributes');
|
||
|
|
var sloppy = require('./sloppy');
|
||
|
|
var isApiWritable = require("./config").isApiWritable;
|
||
|
|
|
||
|
|
module.exports = function(spec, defaultConstructor, tagList, tagNameToImpl) {
|
||
|
|
var c = spec.ctor;
|
||
|
|
if (c) {
|
||
|
|
var props = spec.props || {};
|
||
|
|
|
||
|
|
if (spec.attributes) {
|
||
|
|
for (var n in spec.attributes) {
|
||
|
|
var attr = spec.attributes[n];
|
||
|
|
if (typeof attr !== 'object' || Array.isArray(attr)) attr = {type: attr};
|
||
|
|
if (!attr.name) attr.name = n.toLowerCase();
|
||
|
|
props[n] = attributes.property(attr);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
props.constructor = { value : c, writable: isApiWritable };
|
||
|
|
c.prototype = Object.create((spec.superclass || defaultConstructor).prototype, props);
|
||
|
|
if (spec.events) {
|
||
|
|
addEventHandlers(c, spec.events);
|
||
|
|
}
|
||
|
|
tagList[c.name] = c;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
c = defaultConstructor;
|
||
|
|
}
|
||
|
|
|
||
|
|
(spec.tags || spec.tag && [spec.tag] || []).forEach(function(tag) {
|
||
|
|
tagNameToImpl[tag] = c;
|
||
|
|
});
|
||
|
|
|
||
|
|
return c;
|
||
|
|
};
|
||
|
|
|
||
|
|
function EventHandlerBuilder(body, document, form, element) {
|
||
|
|
this.body = body;
|
||
|
|
this.document = document;
|
||
|
|
this.form = form;
|
||
|
|
this.element = element;
|
||
|
|
}
|
||
|
|
|
||
|
|
EventHandlerBuilder.prototype.build = sloppy.EventHandlerBuilder_build;
|
||
|
|
|
||
|
|
function EventHandlerChangeHandler(elt, name, oldval, newval) {
|
||
|
|
var doc = elt.ownerDocument || Object.create(null);
|
||
|
|
var form = elt.form || Object.create(null);
|
||
|
|
elt[name] = new EventHandlerBuilder(newval, doc, form, elt).build();
|
||
|
|
}
|
||
|
|
|
||
|
|
function addEventHandlers(c, eventHandlerTypes) {
|
||
|
|
var p = c.prototype;
|
||
|
|
eventHandlerTypes.forEach(function(type) {
|
||
|
|
// Define the event handler registration IDL attribute for this type
|
||
|
|
Object.defineProperty(p, "on" + type, {
|
||
|
|
get: function() {
|
||
|
|
return this._getEventHandler(type);
|
||
|
|
},
|
||
|
|
set: function(v) {
|
||
|
|
this._setEventHandler(type, v);
|
||
|
|
},
|
||
|
|
});
|
||
|
|
|
||
|
|
// Define special behavior for the content attribute as well
|
||
|
|
attributes.registerChangeHandler(c, "on" + type, EventHandlerChangeHandler);
|
||
|
|
});
|
||
|
|
}
|