| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| import angular from 'angular'; |
| |
| /** |
| * If included, this decorates the default angular `<script>` tag so that it if a |
| * 'defer-to-preexisting-id' attribute is set, it will check the template cache and |
| * skip putting the contents of the `script` into the cache if there is already an |
| * element with that ID present. |
| * |
| * This allows us to include `<script type="ng-template" id="..." defer-to-preexisting-id="true">` blocks |
| * in HTML templates that work in the usual way, but with the extra "defer" attribute we can allow |
| * the template to be overridden by a `run` block (or other block) installing a custom HTML template |
| * under the same ID. (By default the `script` directive will always install the ID, on every |
| * directive processing on the template, meaning one cannot easily override the template.) |
| */ |
| |
| const MODULE_NAME = 'brooklyn.components.script-tag-non-overwrite'; |
| |
| angular.module(MODULE_NAME, []) |
| .decorator('scriptDirective', ['$delegate', '$templateCache', scriptTagDirectiveDecorator]); |
| |
| export default MODULE_NAME; |
| |
| const BROOKLYN_CONFIG = 'brooklyn.config'; |
| |
| function scriptTagDirectiveDecorator($delegate, $templateCache) { |
| let base = $delegate[0]; |
| return [ Object.assign({}, base, { compile: function(el, attr) { |
| let match = $templateCache.get(attr.id); |
| if (attr.deferToPreexistingId && !(match === null || typeof match === 'undefined')) { |
| // no-op if this ID is already in the cache (e.g. manually overridden) |
| return function() {}; |
| } |
| // otherwise do default behaviour |
| return base.compile(el, attr); |
| } }) ]; |
| } |