From 9e3c08db40b8916968b9f30096c7be3f00ce9647 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:44:51 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- dom/html/reftests/toblob-todataurl/dataurl.js | 56 +++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 dom/html/reftests/toblob-todataurl/dataurl.js (limited to 'dom/html/reftests/toblob-todataurl/dataurl.js') diff --git a/dom/html/reftests/toblob-todataurl/dataurl.js b/dom/html/reftests/toblob-todataurl/dataurl.js new file mode 100644 index 0000000000..8ffba1fa8e --- /dev/null +++ b/dom/html/reftests/toblob-todataurl/dataurl.js @@ -0,0 +1,56 @@ +function init() { + function end() { + document.documentElement.className = ''; + } + + function next() { + compressAndDisplay(original, end); + } + + var original = getImageFromDataUrl(sample); + setImgLoadListener(original, next); +} + +function compressAndDisplay(image, next) { + var canvas = document.createElement('canvas'); + canvas.width = image.naturalWidth; + canvas.height = image.naturalHeight; + var ctx = canvas.getContext('2d'); + ctx.drawImage(image, 0, 0); + + var dataUrl; + // I want to test passing undefined as well + if ('quality' in window) { + dataUrl = canvas.toDataURL('image/jpeg', quality); + } else { + dataUrl = canvas.toDataURL('image/jpeg'); + } + + var img = getImageFromDataUrl(dataUrl); + setImgLoadListener(img, next); + document.body.appendChild(img); +} + +function setImgLoadListener(img, func) { + if (img.complete) { + func.call(img, { target: img}); + } else { + img.addEventListener('load', func); + } +} + +function naturalDimensionsHandler(e) { + var img = e.target; + img.width = img.naturalWidth; + img.height = img.naturalHeight; +} + +function getImageFromDataUrl(url) { + var img = document.createElement('img'); + img.src = url; + setImgLoadListener(img, naturalDimensionsHandler); + + return img; +} + +init(); -- cgit v1.2.3