40 lines
1.4 KiB
TypeScript
40 lines
1.4 KiB
TypeScript
import {RegExpWrapper, StringWrapper, isPresent} from 'angular2/src/facade/lang';
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import {DOM} from 'angular2/src/dom/dom_adapter';
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import {Parser} from 'angular2/src/change_detection/change_detection';
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import {CompileStep} from './compile_step';
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import {CompileElement} from './compile_element';
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import {CompileControl} from './compile_control';
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/**
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* Parses interpolations in direct text child nodes of the current element.
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*/
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export class TextInterpolationParser implements CompileStep {
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constructor(public _parser: Parser) {}
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process(parent: CompileElement, current: CompileElement, control: CompileControl) {
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if (!current.compileChildren) {
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return;
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}
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var element = current.element;
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var childNodes = DOM.childNodes(DOM.templateAwareRoot(element));
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for (var i = 0; i < childNodes.length; i++) {
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var node = childNodes[i];
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if (DOM.isTextNode(node)) {
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var textNode = <Text>node;
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var text = DOM.nodeValue(textNode);
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var expr = this._parser.parseInterpolation(text, current.elementDescription);
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if (isPresent(expr)) {
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DOM.setText(textNode, ' ');
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if (current.element === current.inheritedProtoView.rootElement) {
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current.inheritedProtoView.bindRootText(textNode, expr);
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} else {
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current.bindElement().bindText(textNode, expr);
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}
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}
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}
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}
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}
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}
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