feat: support bindings for the 'role' attribute

Closes #630
This commit is contained in:
Pawel Kozlowski
2015-02-12 21:34:20 +01:00
parent 1846ce8c68
commit 92afad6ebc
2 changed files with 56 additions and 1 deletions

View File

@ -1,4 +1,4 @@
import {int, isPresent, isBlank, Type, BaseException, StringWrapper, RegExpWrapper, stringify} from 'angular2/src/facade/lang';
import {int, isPresent, isBlank, Type, BaseException, StringWrapper, RegExpWrapper, isString, stringify} from 'angular2/src/facade/lang';
import {Element, DOM} from 'angular2/src/facade/dom';
import {ListWrapper, List, MapWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
@ -81,6 +81,18 @@ function styleSetterFactory(styleName:string, stylesuffix:string) {
return setterFn;
}
const ROLE_ATTR = 'role';
function roleSetter(element:Element, value) {
if (isString(value)) {
DOM.setAttribute(element, ROLE_ATTR, value);
} else {
DOM.removeAttribute(element, ROLE_ATTR);
if (isPresent(value)) {
throw new BaseException("Invalid role attribute, only string values are allowed, got '" + stringify(value) + "'");
}
}
}
/**
* Creates the ElementBinders and adds watches to the
* ProtoChangeDetector.
@ -155,6 +167,8 @@ export class ElementBinderBuilder extends CompileStep {
if (StringWrapper.startsWith(property, ARIA_PREFIX)) {
setterFn = ariaSetterFactory(property);
} else if (StringWrapper.equals(property, ROLE_ATTR)) {
setterFn = roleSetter;
} else if (StringWrapper.startsWith(property, CLASS_PREFIX)) {
setterFn = classSetterFactory(StringWrapper.substring(property, CLASS_PREFIX.length));
} else if (StringWrapper.startsWith(property, STYLE_PREFIX)) {