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Aurelia Gist
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| <template> | |
| <p>Hit edit and you'll see two items added to the form instead of one.</p> | |
| <div if.bind="!editing"> | |
| <h2>${items.length} items!</h2> | |
| <ul> | |
| <li repeat.for="item of items"> | |
| ${item.name} | |
| </li> | |
| </ul> | |
| <button click.delegate="toggleEditing()">Edit</button> | |
| </div> | |
| <div if.bind="editing"> | |
| <ul> | |
| <li repeat.for="item of items"> | |
| <input type="text" value.bind="item.name"> | |
| </li> | |
| </ul> | |
| <button click.delegate="toggleEditing()">Save</button> | |
| </div> | |
| </template> |
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| import { Repeat } from 'aurelia-templating-resources'; | |
| Repeat.prototype.itemsChanged = function() { | |
| this._unsubscribeCollection(); | |
| if (!this.scope) { | |
| return; | |
| } | |
| var items = this.items; | |
| this.strategy = this.strategyLocator.getStrategy(items); | |
| if (!this.strategy) { | |
| throw new Error('Value for \'' + this.sourceExpression + '\' is non-repeatable'); | |
| } | |
| if (!this.isOneTime && !this._observeInnerCollection()) { | |
| this._observeCollection(); | |
| } | |
| this.ignoreMutation = true; | |
| this.strategy.instanceChanged(this, items); | |
| this.observerLocator.taskQueue.queueMicroTask(() => { | |
| this.ignoreMutation = false; | |
| }) | |
| }; | |
| Repeat.prototype.handleCollectionMutated = function(collection, changes) { | |
| if (!this.collectionObserver) { | |
| return; | |
| } | |
| if (this.ignoreMutation) { | |
| return; | |
| } | |
| this.strategy.instanceMutated(this, collection, changes); | |
| }; | |
| export class App { | |
| constructor () { | |
| this.items = []; | |
| this.editing = false; | |
| } | |
| // Toggle the edit form | |
| toggleEditing () { | |
| this.editing = !this.editing; | |
| // Also add a new item | |
| if (this.editing) { | |
| this.items.push({}); // NOTE: This is where things go wrong | |
| // this.items = [...this.items, {}] | |
| } | |
| } | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| </head> | |
| <body aurelia-app> | |
| <h1>Loading...</h1> | |
| <script src="https://jdanyow.github.io/rjs-bundle/node_modules/requirejs/require.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/config.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/aurelia.js"></script> | |
| <script src="https://jdanyow.github.io/rjs-bundle/bundles/babel.js"></script> | |
| <script> | |
| require(['aurelia-bootstrapper']); | |
| </script> | |
| </body> | |
| </html> |
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