redoc/lib/options.js

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'use strict';
import {isFunction, isString} from 'angular2/src/facade/lang';
import {BrowserDomAdapter} from 'angular2/platform/browser';
import {global} from 'angular2/src/facade/lang';
var defaults = {
scrollYOffset: 0,
disableLazySchemas: false,
debugMode: global.redocDebugMode
};
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var OPTION_NAMES = new Set(['scrollYOffset', 'disableLazySchemas']);
@Reflect.metadata('parameters', [[BrowserDomAdapter]])
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export default class OptionsManager {
constructor() {
this._options = defaults;
this.dom = new BrowserDomAdapter();
}
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get options() {
return this._options;
}
set options(opts) {
this._options = Object.assign(this._options, opts);
}
parseOptions(el) {
let parsedOpts;
let attributesMap = this.dom.attributeMap(el);
parsedOpts = {};
Array.from(attributesMap.keys())
//camelCasify
.map(k => ({
attrName: k,
name: k.replace(/-(.)/g, (m, $1) => $1.toUpperCase())
})
)
.filter(option => OPTION_NAMES.has(option.name))
.forEach(option => {
parsedOpts[option.name] = attributesMap.get(option.attrName);
});
this.options = parsedOpts;
this._normalizeOptions();
}
_normalizeOptions() {
// modify scrollYOffset to always be a function
if (!isFunction(this._options.scrollYOffset)) {
if (isFinite(this._options.scrollYOffset)) {
// if number specified create function that returns this value
let numberOffset = parseFloat(this._options.scrollYOffset);
this.options.scrollYOffset = () => numberOffset;
} else {
// if selector or node function that returns bottom offset of this node
let el = this._options.scrollYOffset;
if (!(el instanceof Node)) {
el = this.dom.query(el);
}
if (!el) {
this._options.scrollYOffset = () => 0;
} else {
this._options.scrollYOffset = () => el.offsetTop + el.offsetHeight;
}
}
}
if (isString(this._options.disableLazySchemas)) this._options.disableLazySchemas = true;
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}
}