1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
|
# Included from top-level .conf file
milter = yes; # Enable milter mode
timeout = 120s; # Needed for Milter usually
upstream "local" {
import $ from 'jquery';
import {hideElem} from '../utils/dom.js';
function getDefaultSvgBoundsIfUndefined(svgXml, src) {
const DefaultSize = 300;
const MaxSize = 99999;
const svg = svgXml.documentElement;
const width = svg?.width?.baseVal;
const height = svg?.height?.baseVal;
if (width === undefined || height === undefined) {
return null; // in case some svg is invalid or doesn't have the width/height
}
if (width.unitType === SVGLength.SVG_LENGTHTYPE_PERCENTAGE || height.unitType === SVGLength.SVG_LENGTHTYPE_PERCENTAGE) {
const img = new Image();
img.src = src;
if (img.width > 1 && img.width < MaxSize && img.height > 1 && img.height < MaxSize) {
return {
width: img.width,
height: img.height
};
}
if (svg.hasAttribute('viewBox')) {
const viewBox = svg.viewBox.baseVal;
return {
width: DefaultSize,
height: DefaultSize * viewBox.width / viewBox.height
};
}
return {
width: DefaultSize,
height: DefaultSize
};
}
return null;
}
export function initImageDiff() {
function createContext(image1, image2) {
const size1 = {
width: image1 && image1.width || 0,
height: image1 && image1.height || 0
};
const size2 = {
width: image2 && image2.width || 0,
height: image2 && image2.height || 0
};
const max = {
width: Math.max(size2.width, size1.width),
height: Math.max(size2.height, size1.height)
};
return {
image1: $(image1),
image2: $(image2),
size1,
size2,
max,
ratio: [
Math.floor(max.width - size1.width) / 2,
Math.floor(max.height - size1.height) / 2,
Math.floor(max.width - size2.width) / 2,
Math.floor(max.height - size2.height) / 2
]
};
}
$('.image-diff:not([data-image-diff-loaded])').each(function() {
const $container = $(this);
$container.attr('data-image-diff-loaded', 'true');
// the container may be hidden by "viewed" checkbox, so use the parent's width for reference
const diffContainerWidth = Math.max($container.closest('.diff-file-box').width() - 300, 100);
const pathAfter = $container.data('path-after');
const pathBefore = $container.data('path-before');
const imageInfos = [{
loaded: false,
path: pathAfter,
$image: $container.find('img.image-after'),
$boundsInfo: $container.find('.bounds-info-after')
}, {
loaded: false,
path: pathBefore,
$image: $container.find('img.image-before'),
$boundsInfo: $container.find('.bounds-info-before')
}];
for (const info of imageInfos) {
if (info.$image.length > 0) {
$.ajax({
url: info.path,
success: (data, _, jqXHR) => {
info.$image.on('load', () => {
info.loaded = true;
setReadyIfLoaded();
}).on('error', () => {
info.loaded = true;
setReadyIfLoaded();
info.$boundsInfo.text('(image error)');
});
info.$image.attr('src', info.path);
if (jqXHR.getResponseHeader('Content-Type') === 'image/svg+xml') {
const bounds = getDefaultSvgBoundsIfUndefined(data, info.path);
if (bounds) {
info.$image.attr('width', bounds.width);
info.$image.attr('height', bounds.height);
hideElem(info.$boundsInfo);
}
}
}
});
} else {
info.loaded = true;
setReadyIfLoaded();
}
}
function setReadyIfLoaded() {
if (imageInfos[0].loaded && imageInfos[1].loaded) {
initViews(imageInfos[0].$image, imageInfos[1].$image);
}
}
function initViews($imageAfter, $imageBefore) {
initSideBySide(createContext($imageAfter[0], $imageBefore[0]));
if ($imageAfter.length > 0 && $imageBefore.length > 0) {
initSwipe(createContext($imageAfter[1], $imageBefore[1]));
initOverlay(createContext($imageAfter[2], $imageBefore[2]));
}
$container.find('> .image-diff-tabs').removeClass('is-loading');
}
function initSideBySide(sizes) {
let factor = 1;
if (sizes.max.width > (diffContainerWidth - 24) / 2) {
factor = (diffContainerWidth - 24) / 2 / sizes.max.width;
}
const widthChanged = sizes.image1.length !== 0 && sizes.image2.length !== 0 && sizes.image1[0].naturalWidth !== sizes.image2[0].naturalWidth;
const heightChanged = sizes.image1.length !== 0 && sizes.image2.length !== 0 && sizes.image1[0].naturalHeight !== sizes.image2[0].naturalHeight;
if (sizes.image1.length !== 0) {
$container.find('.bounds-info-after .bounds-info-width').text(`${sizes.image1[0].naturalWidth}px`).addClass(widthChanged ? 'green' : '');
$container.find('.bounds-info-after .bounds-info-height').text(`${sizes.image1[0].naturalHeight}px`).addClass(heightChanged ? 'green' : '');
}
if (sizes.image2.length !== 0) {
$container.find('.bounds-info-before .bounds-info-width').text(`${sizes.image2[0].naturalWidth}px`).addClass(widthChanged ? 'red' : '');
$container.find('.bounds-info-before .bounds-info-height').text(`${sizes.image2[0].naturalHeight}px`).addClass(heightChanged ? 'red' : '');
}
sizes.image1.css({
width: sizes.size1.width * factor,
height: sizes.size1.height * factor
});
sizes.image1.parent().css({
margin: `10px auto`,
width: sizes.size1.width * factor + 2,
height: sizes.size1.height * factor + 2
});
sizes.image2.css({
width: sizes.size2.width * factor,
height: sizes.size2.height * factor
});
sizes.image2.parent().css({
margin: `10px auto`,
width: sizes.size2.width * factor + 2,
height: sizes.size2.height * factor + 2
});
}
function initSwipe(sizes) {
let factor = 1;
if (sizes.max.width > diffContainerWidth - 12) {
factor = (diffContainerWidth - 12) / sizes.max.width;
}
sizes.image1.css({
width: sizes.size1.width * factor,
height: sizes.size1.height * factor
});
sizes.image1.parent().css({
margin: `0px ${sizes.ratio[0] * factor}px`,
width: sizes.size1.width * factor + 2,
height: sizes.size1.height * factor + 2
});
sizes.image1.parent().parent().css({
padding: `${sizes.ratio[1] * factor}px 0 0 0`,
width: sizes.max.width * factor + 2
});
sizes.image2.css({
width: sizes.size2.width * factor,
height: sizes.size2.height * factor
});
sizes.image2.parent().css({
margin: `${sizes.ratio[3] * factor}px ${sizes.ratio[2] * factor}px`,
width: sizes.size2.width * factor + 2,
height: sizes.size2.height * factor + 2
});
sizes.image2.parent().parent().css({
width: sizes.max.width * factor + 2,
height: sizes.max.height * factor + 2
});
$container.find('.diff-swipe').css({
width: sizes.max.width * factor + 2,
height: sizes.max.height * factor + 30 /* extra height for inner "position: absolute" elements */,
});
$container.find('.swipe-bar').on('mousedown', function(e) {
e.preventDefault();
const $swipeBar = $(this);
const $swipeFrame = $swipeBar.parent();
const width = $swipeFrame.width() - $swipeBar.width() - 2;
$(document).on('mousemove.diff-swipe', (e2) => {
e2.preventDefault();
const value = Math.max(0, Math.min(e2.clientX - $swipeFrame.offset().left, width));
$swipeBar.css({
left: value
});
$container.find('.swipe-container').css({
width: $swipeFrame.width() - value
});
$(document).on('mouseup.diff-swipe', () => {
$(document).off('.diff-swipe');
});
});
});
}
function initOverlay(sizes) {
let factor = 1;
if (sizes.max.width > diffContainerWidth - 12) {
factor = (diffContainerWidth - 12) / sizes.max.width;
}
sizes.image1.css({
width: sizes.size1.width * factor,
height: sizes.size1.height * factor
});
sizes.image2.css({
width: sizes.size2.width * factor,
height: sizes.size2.height * factor
});
sizes.image1.parent().css({
margin: `${sizes.ratio[1] * factor}px ${sizes.ratio[0] * factor}px`,
width: sizes.size1.width * factor + 2,
height: sizes.size1.height * factor + 2
});
sizes.image2.parent().css({
margin: `${sizes.ratio[3] * factor}px ${sizes.ratio[2] * factor}px`,
width: sizes.size2.width * factor + 2,
height: sizes.size2.height * factor + 2
});
// some inner elements are `position: absolute`, so the container's height must be large enough
// the "css(width, height)" is somewhat hacky and not easy to understand, it could be improved in the future
sizes.image2.parent().parent().css({
width: sizes.max.width * factor + 2,
height: sizes.max.height * factor + 2,
});
const $range = $container.find("input[type='range']");
const onInput = () => sizes.image1.parent().css({
opacity: $range.val() / 100
});
$range.on('input', onInput);
onInput();
}
});
}
|
