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Aurelia adjusted EventManger & Listener
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| <template> | |
| <require from="./my-canvas"></require> | |
| <select value.bind='drawInstruction'> | |
| <option repeat.for='draw of draws' value.bind='draw'>${draw}</option> | |
| </select> | |
| <my-canvas draw-instruction.bind='drawInstruction'></my-canvas> | |
| </template> |
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| // import './no-break-adjusted-events' | |
| export class App { | |
| draws = [ | |
| 'Arrow', | |
| 'Ellipse' | |
| ] | |
| } |
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| <!doctype html> | |
| <html> | |
| <head> | |
| <title>Aurelia</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1"> | |
| <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css"> | |
| <style> | |
| body { | |
| padding: 20px; | |
| } | |
| .form-component { | |
| display: block; | |
| margin-bottom: 20px; | |
| } | |
| </style> | |
| </head> | |
| <body aurelia-app> | |
| <h1>Loading...</h1> | |
| <script | |
| src="https://code.jquery.com/jquery-3.2.1.min.js" | |
| integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4=" | |
| crossorigin="anonymous"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/jcanvas/20.1.2/min/jcanvas.min.js"></script> | |
| <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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| <template css="display: block; width: ${size}px; height: ${size}px"> | |
| <canvas width.bind='size' height.bind='size' ref='canvas'></canvas> | |
| </template> |
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| import { bindable } from 'aurelia-framework'; | |
| export class MyCanvas { | |
| @bindable drawInstruction | |
| @bindable size = 300 | |
| canvas; // reference to canvas element will be assigned by framework | |
| bind() { | |
| this.$canvas = $(this.canvas); | |
| } | |
| drawInstructionChanged(newVal) { | |
| this.$canvas.clearCanvas() | |
| this['draw' + newVal] && this['draw' + newVal](); | |
| } | |
| drawArrow() { | |
| this.$canvas.drawLine({ | |
| strokeStyle: '#000', | |
| strokeWidth: 4, | |
| rounded: true, | |
| startArrow: true, | |
| arrowRadius: 15, | |
| arrowAngle: 90, | |
| x1: 100, y1: 100, | |
| x2: 150, y2: 125, | |
| x3: 200, y3: 75 | |
| }); | |
| } | |
| drawEllipse() { | |
| this.$canvas.drawEllipse({ | |
| fillStyle: '#c33', | |
| x: 150, y: 100, | |
| width: 200, height: 100 | |
| }); | |
| } | |
| } |
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