| /** |
| * @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 { removeNodes } from './dom.js'; |
| import { NodePart } from './parts.js'; |
| import { templateFactory } from './template-factory.js'; |
| export const parts = new WeakMap(); |
| /** |
| * Renders a template result or other value to a container. |
| * |
| * To update a container with new values, reevaluate the template literal and |
| * call `render` with the new result. |
| * |
| * @param result Any value renderable by NodePart - typically a TemplateResult |
| * created by evaluating a template tag like `html` or `svg`. |
| * @param container A DOM parent to render to. The entire contents are either |
| * replaced, or efficiently updated if the same result type was previous |
| * rendered there. |
| * @param options RenderOptions for the entire render tree rendered to this |
| * container. Render options must *not* change between renders to the same |
| * container, as those changes will not effect previously rendered DOM. |
| */ |
| export const render = (result, container, options) => { |
| let part = parts.get(container); |
| if (part === undefined) { |
| removeNodes(container, container.firstChild); |
| parts.set(container, part = new NodePart(Object.assign({ templateFactory }, options))); |
| part.appendInto(container); |
| } |
| part.setValue(result); |
| part.commit(); |
| }; |
| //# sourceMappingURL=render.js.map |
