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feat: support binding to aria-* attributes

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Closes #643
This commit is contained in:
Pawel Kozlowski
2015-02-13 16:32:49 +01:00
parent 6d45153b67
commit 1846ce8c68
5 changed files with 96 additions and 1 deletions
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24
modules/angular2/src/core/compiler/pipeline/element_binder_builder.js vendored
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@ -18,6 +18,26 @@ import {CompileControl} from './compile_control';
var DOT_REGEXP = RegExpWrapper.create('\\.');
const ARIA_PREFIX = 'aria-';
var ariaSettersCache = StringMapWrapper.create();
function ariaSetterFactory(attrName:string) {
var setterFn = StringMapWrapper.get(ariaSettersCache, attrName);
if (isBlank(setterFn)) {
setterFn = function(element:Element, value) {
if (isPresent(value)) {
DOM.setAttribute(element, attrName, stringify(value));
} else {
DOM.removeAttribute(element, attrName);
}
};
StringMapWrapper.set(ariaSettersCache, attrName, setterFn);
}
return setterFn;
}
const CLASS_PREFIX = 'class.';
var classSettersCache = StringMapWrapper.create();
@ -133,7 +153,9 @@ export class ElementBinderBuilder extends CompileStep {
MapWrapper.forEach(compileElement.propertyBindings, (expression, property) => {
var setterFn, styleParts, styleSuffix;
if (StringWrapper.startsWith(property, CLASS_PREFIX)) {
if (StringWrapper.startsWith(property, ARIA_PREFIX)) {
setterFn = ariaSetterFactory(property);
} else if (StringWrapper.startsWith(property, CLASS_PREFIX)) {
setterFn = classSetterFactory(StringWrapper.substring(property, CLASS_PREFIX.length));
} else if (StringWrapper.startsWith(property, STYLE_PREFIX)) {
styleParts = StringWrapper.split(property, DOT_REGEXP);