testHelper.js (743B)
1 function paintCanvases() { 2 for (let canvas of document.getElementsByTagName("canvas")) { 3 canvas.width = 50; 4 canvas.height = 100; 5 6 let ctx = canvas.getContext("2d"); 7 ctx.fillStyle = 'blue'; 8 ctx.fillRect(0, 0, 25, 50); 9 10 ctx.fillStyle = 'green'; 11 ctx.fillRect(25, 0, 25, 50); 12 13 ctx.fillStyle = 'red'; 14 ctx.fillRect(0, 50, 25, 50); 15 16 ctx.fillStyle = 'yellow'; 17 ctx.fillRect(25, 50, 50, 50); 18 } 19 } 20 21 function populateElements(imageSource) { 22 let images = document.getElementsByTagName("img"); 23 for (var i = 0; i < images.length; i++) 24 images[i].src = imageSource; 25 26 paintCanvases(); 27 28 for (let video of document.getElementsByTagName("video")) 29 video.poster = "support/exif-orientation-6-ru.jpg"; 30 }