| /** |
| * @license |
| * Copyright (c) 2017 The Polymer Project Authors. All rights reserved. |
| * This code may only be used under the BSD style license found at |
| * http://polymer.github.io/LICENSE.txt |
| * The complete set of authors may be found at |
| * http://polymer.github.io/AUTHORS.txt |
| * The complete set of contributors may be found at |
| * http://polymer.github.io/CONTRIBUTORS.txt |
| * Code distributed by Google as part of the polymer project is also |
| * subject to an additional IP rights grant found at |
| * http://polymer.github.io/PATENTS.txt |
| */ |
| import { AttributeCommitter, BooleanAttributePart, EventPart, NodePart, PropertyCommitter } from './parts.js'; |
| /** |
| * Creates Parts when a template is instantiated. |
| */ |
| export class DefaultTemplateProcessor { |
| /** |
| * Create parts for an attribute-position binding, given the event, attribute |
| * name, and string literals. |
| * |
| * @param element The element containing the binding |
| * @param name The attribute name |
| * @param strings The string literals. There are always at least two strings, |
| * event for fully-controlled bindings with a single expression. |
| */ |
| handleAttributeExpressions(element, name, strings, options) { |
| const prefix = name[0]; |
| if (prefix === '.') { |
| const committer = new PropertyCommitter(element, name.slice(1), strings); |
| return committer.parts; |
| } |
| if (prefix === '@') { |
| return [new EventPart(element, name.slice(1), options.eventContext)]; |
| } |
| if (prefix === '?') { |
| return [new BooleanAttributePart(element, name.slice(1), strings)]; |
| } |
| const committer = new AttributeCommitter(element, name, strings); |
| return committer.parts; |
| } |
| /** |
| * Create parts for a text-position binding. |
| * @param templateFactory |
| */ |
| handleTextExpression(options) { |
| return new NodePart(options); |
| } |
| } |
| export const defaultTemplateProcessor = new DefaultTemplateProcessor(); |
| //# sourceMappingURL=default-template-processor.js.map |
