27 lines
770 B
JavaScript
27 lines
770 B
JavaScript
|
define([
|
||
|
|
'Core/defaultValue'
|
||
|
|
], function(
|
||
|
|
defaultValue) {
|
||
|
|
'use strict';
|
||
|
|
|
||
|
|
var canvasCount = 0;
|
||
|
|
|
||
|
|
function createCanvas(width, height) {
|
||
|
|
width = defaultValue(width, 1);
|
||
|
|
height = defaultValue(height, 1);
|
||
|
|
|
||
|
|
var canvas = document.createElement('canvas');
|
||
|
|
canvas.id = 'canvas' + canvasCount++;
|
||
|
|
canvas.setAttribute('width', width);
|
||
|
|
canvas.setAttribute('clientWidth', width);
|
||
|
|
canvas.setAttribute('height', height);
|
||
|
|
canvas.setAttribute('clientHeight', height);
|
||
|
|
canvas.innerHTML = 'To view this web page, upgrade your browser; it does not support the HTML5 canvas element.';
|
||
|
|
document.body.appendChild(canvas);
|
||
|
|
|
||
|
|
return canvas;
|
||
|
|
}
|
||
|
|
|
||
|
|
return createCanvas;
|
||
|
|
});
|