| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| /// @assertion void addEventListener(String type, EventListener listener, |
| /// [bool useCapture]) |
| /// Register an event handler of a specific event type on the EventTarget. |
| /// @description Checks that listener for standard event can be added |
| |
| import "dart:html"; |
| |
| main() { |
| CanvasElement canvas = new CanvasElement(); |
| CanvasRenderingContext2D ctx = canvas.context2D |
| ..fillStyle = "rgb(200,0,0)" |
| ..fillRect(10, 10, 55, 50); |
| document.body?.append(canvas); |
| |
| //Create a new image element from the data URI. |
| ImageElement img = new ImageElement(); |
| img.src = canvas.toDataUrl("image/jpeg", 0.95); |
| // The Data Uri would look similar to |
| // 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA |
| // AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO |
| // 9TXL0Y4OHwAAAABJRU5ErkJggg==' |
| |
| document.body?.children.add(img); |
| } |
