| <!DOCTYPE html> |
| <body> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| 'use strict'; |
| // TODO(loonybear): Once WPT supports tests with page zoom in / out, move this |
| // test to WPT. |
| // https://github.com/web-platform-tests/wpt/issues/12725# |
| |
| const srcs = [ |
| "resources/green.jpg", |
| "resources/green.png", |
| "resources/green-circle.svg" |
| ]; |
| const ZOOM_MULTIPLER = 1.2; |
| |
| function round(n) { |
| return Math.round(n * 100) / 100; |
| } |
| |
| for (var src of srcs) { |
| var img = document.createElement('IMG'); |
| img.intrinsicSize = '400 x 500'; |
| var intrinsic_width = 400; |
| var intrinsic_height = 500; |
| var expected_width = intrinsic_width; |
| var expected_height = intrinsic_height; |
| document.body.appendChild(img); |
| img.addEventListener('load', promise_test(async() => { |
| if (window.eventSender) { |
| var expected_dpr = window.devicePixelRatio; |
| for (var i = 0; i < 3; i++) { |
| eventSender.zoomPageOut(); |
| expected_width *= ZOOM_MULTIPLER; |
| expected_height *= ZOOM_MULTIPLER; |
| expected_dpr /= ZOOM_MULTIPLER; |
| |
| assert_equals(img.width, Math.round(expected_width), 'width (zoomout)'); |
| assert_equals(img.height, Math.round(expected_height), 'height (zoomout)'); |
| assert_equals(img.naturalWidth, intrinsic_width, 'naturalWidth (zoomout)'); |
| assert_equals(img.naturalHeight, intrinsic_height, 'naturalHeight (zoomout)'); |
| assert_equals(round(window.devicePixelRatio), round(expected_dpr), 'devicePixelRatio'); |
| } |
| for (var i = 0; i < 3; i++) { |
| eventSender.zoomPageIn(); |
| expected_width /= ZOOM_MULTIPLER; |
| expected_height /= ZOOM_MULTIPLER; |
| expected_dpr *= ZOOM_MULTIPLER; |
| |
| assert_equals(img.width, Math.round(expected_width), 'width (zoomin)'); |
| assert_equals(img.height, Math.round(expected_height), 'height (zoomin)'); |
| assert_equals(img.naturalWidth, intrinsic_width, 'naturalWidth (zoomin)'); |
| assert_equals(img.naturalHeight, intrinsic_height, 'naturalHeight (zoomin)'); |
| assert_equals(round(window.devicePixelRatio), round(expected_dpr), 'devicePixelRatio'); |
| } |
| } |
| }, 'Test image ' + src + 'with different zoom in and zoom out')); |
| img.src = src; |
| } |
| </script> |
| </body> |
