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feat(compiler): Add support for setting attributes to Component host element

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Fixes #1008
Fixes #1009
Closes #1052
This commit is contained in:
Marc Laval
2015-03-23 14:13:32 +01:00
parent f995b07876
commit 58dd75a1c8
5 changed files with 256 additions and 116 deletions
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115
modules/angular2/src/core/compiler/pipeline/element_binder_builder.js vendored
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@ -1,5 +1,4 @@
import {int, isPresent, isBlank, Type, BaseException, StringWrapper, RegExpWrapper, isString, stringify} from 'angular2/src/facade/lang';
import {DOM} from 'angular2/src/dom/dom_adapter';
import {int, isPresent, isBlank} from 'angular2/src/facade/lang';
import {ListWrapper, List, MapWrapper, StringMapWrapper} from 'angular2/src/facade/collection';
import {reflector} from 'angular2/src/reflection/reflection';
@ -11,88 +10,8 @@ import {DirectiveMetadata} from '../directive_metadata';
import {CompileStep} from './compile_step';
import {CompileElement} from './compile_element';
import {CompileControl} from './compile_control';
import {dashCaseToCamelCase, camelCaseToDashCase} from './util';
var DOT_REGEXP = RegExpWrapper.create('\\.');
const ATTRIBUTE_PREFIX = 'attr.';
var attributeSettersCache = StringMapWrapper.create();
function _isValidAttributeValue(attrName:string, value: any) {
if (attrName == "role") {
return isString(value);
} else {
return isPresent(value);
}
}
function attributeSetterFactory(attrName:string) {
var setterFn = StringMapWrapper.get(attributeSettersCache, attrName);
var dashCasedAttributeName;
if (isBlank(setterFn)) {
dashCasedAttributeName = camelCaseToDashCase(attrName);
setterFn = function(element, value) {
if (_isValidAttributeValue(dashCasedAttributeName, value)) {
DOM.setAttribute(element, dashCasedAttributeName, stringify(value));
} else {
DOM.removeAttribute(element, dashCasedAttributeName);
if (isPresent(value)) {
throw new BaseException("Invalid " + dashCasedAttributeName + " attribute, only string values are allowed, got '" + stringify(value) + "'");
}
}
};
StringMapWrapper.set(attributeSettersCache, attrName, setterFn);
}
return setterFn;
}
const CLASS_PREFIX = 'class.';
var classSettersCache = StringMapWrapper.create();
function classSetterFactory(className:string) {
var setterFn = StringMapWrapper.get(classSettersCache, className);
if (isBlank(setterFn)) {
setterFn = function(element, value) {
if (value) {
DOM.addClass(element, className);
} else {
DOM.removeClass(element, className);
}
};
StringMapWrapper.set(classSettersCache, className, setterFn);
}
return setterFn;
}
const STYLE_PREFIX = 'style.';
var styleSettersCache = StringMapWrapper.create();
function styleSetterFactory(styleName:string, stylesuffix:string) {
var cacheKey = styleName + stylesuffix;
var setterFn = StringMapWrapper.get(styleSettersCache, cacheKey);
var dashCasedStyleName;
if (isBlank(setterFn)) {
dashCasedStyleName = camelCaseToDashCase(styleName);
setterFn = function(element, value) {
var valAsStr;
if (isPresent(value)) {
valAsStr = stringify(value);
DOM.setStyle(element, dashCasedStyleName, valAsStr + stylesuffix);
} else {
DOM.removeStyle(element, dashCasedStyleName);
}
};
StringMapWrapper.set(classSettersCache, cacheKey, setterFn);
}
return setterFn;
}
import {dashCaseToCamelCase} from './util';
import {setterFactory} from '../property_setter_factory'
/**
* Creates the ElementBinders and adds watches to the
@ -178,28 +97,7 @@ export class ElementBinderBuilder extends CompileStep {
_bindElementProperties(protoView, compileElement) {
MapWrapper.forEach(compileElement.propertyBindings, (expression, property) => {
var setterFn, styleParts, styleSuffix;
if (StringWrapper.startsWith(property, ATTRIBUTE_PREFIX)) {
setterFn = attributeSetterFactory(StringWrapper.substring(property, ATTRIBUTE_PREFIX.length));
} 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);
styleSuffix = styleParts.length > 2 ? ListWrapper.get(styleParts, 2) : '';
setterFn = styleSetterFactory(ListWrapper.get(styleParts, 1), styleSuffix);
} else if (StringWrapper.equals(property, 'innerHtml')) {
setterFn = (element, value) => DOM.setInnerHTML(element, value);
} else {
property = this._resolvePropertyName(property);
var propertySetterFn = reflector.setter(property);
setterFn = function(receiver, value) {
if (DOM.hasProperty(receiver, property)) {
return propertySetterFn(receiver, value);
}
}
}
var setterFn = setterFactory(property);
protoView.bindElementProperty(expression.ast, property, setterFn);
});
}
@ -263,9 +161,4 @@ export class ElementBinderBuilder extends CompileStep {
_splitBindConfig(bindConfig:string) {
return ListWrapper.map(bindConfig.split('|'), (s) => s.trim());
}
_resolvePropertyName(attrName:string) {
var mappedPropName = StringMapWrapper.get(DOM.attrToPropMap, attrName);
return isPresent(mappedPropName) ? mappedPropName : attrName;
}
}