mirror of
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Rebuild docsify and delete docs caching code
This commit is contained in:
659
docs/lib/plugins/zoom-image.js
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659
docs/lib/plugins/zoom-image.js
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@@ -0,0 +1,659 @@
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(function () {
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/*! medium-zoom 1.0.6 | MIT License | https://github.com/francoischalifour/medium-zoom */
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var _extends = Object.assign || function (target) {
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var arguments$1 = arguments;
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for (var i = 1; i < arguments.length; i++) {
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var source = arguments$1[i];
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for (var key in source) {
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if (Object.prototype.hasOwnProperty.call(source, key)) {
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target[key] = source[key];
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}
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}
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}
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return target;
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};
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var isSupported = function isSupported(node) {
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return node.tagName === 'IMG';
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};
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/* eslint-disable-next-line no-prototype-builtins */
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var isNodeList = function isNodeList(selector) {
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return NodeList.prototype.isPrototypeOf(selector);
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};
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var isNode = function isNode(selector) {
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return selector && selector.nodeType === 1;
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};
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var isSvg = function isSvg(image) {
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var source = image.currentSrc || image.src;
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return source.substr(-4).toLowerCase() === '.svg';
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};
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var getImagesFromSelector = function getImagesFromSelector(selector) {
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try {
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if (Array.isArray(selector)) {
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return selector.filter(isSupported);
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}
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if (isNodeList(selector)) {
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// Do not use spread operator or Array.from() for IE support
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return [].slice.call(selector).filter(isSupported);
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}
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if (isNode(selector)) {
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return [selector].filter(isSupported);
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}
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if (typeof selector === 'string') {
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// Do not use spread operator or Array.from() for IE support
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return [].slice.call(document.querySelectorAll(selector)).filter(isSupported);
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}
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return [];
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} catch (err) {
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throw new TypeError('The provided selector is invalid.\n' + 'Expects a CSS selector, a Node element, a NodeList or an array.\n' + 'See: https://github.com/francoischalifour/medium-zoom');
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}
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};
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var createOverlay = function createOverlay(background) {
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var overlay = document.createElement('div');
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overlay.classList.add('medium-zoom-overlay');
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overlay.style.background = background;
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return overlay;
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};
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var cloneTarget = function cloneTarget(template) {
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var _template$getBounding = template.getBoundingClientRect(),
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top = _template$getBounding.top,
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left = _template$getBounding.left,
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width = _template$getBounding.width,
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height = _template$getBounding.height;
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var clone = template.cloneNode();
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var scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
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var scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft || 0;
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clone.removeAttribute('id');
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clone.style.position = 'absolute';
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clone.style.top = top + scrollTop + 'px';
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clone.style.left = left + scrollLeft + 'px';
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clone.style.width = width + 'px';
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clone.style.height = height + 'px';
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clone.style.transform = '';
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return clone;
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};
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var createCustomEvent = function createCustomEvent(type, params) {
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var eventParams = _extends({
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bubbles: false,
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cancelable: false,
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detail: undefined
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}, params);
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if (typeof window.CustomEvent === 'function') {
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return new CustomEvent(type, eventParams);
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}
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var customEvent = document.createEvent('CustomEvent');
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customEvent.initCustomEvent(type, eventParams.bubbles, eventParams.cancelable, eventParams.detail);
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return customEvent;
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};
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var mediumZoom = function mediumZoom(selector) {
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var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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/**
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* Ensure the compatibility with IE11 if no Promise polyfill are used.
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*/
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var Promise = window.Promise || function Promise(fn) {
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function noop() {}
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fn(noop, noop);
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};
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var _handleClick = function _handleClick(event) {
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var target = event.target;
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if (target === overlay) {
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close();
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return;
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}
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if (images.indexOf(target) === -1) {
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return;
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}
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toggle({ target: target });
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};
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var _handleScroll = function _handleScroll() {
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if (isAnimating || !active.original) {
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return;
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}
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var currentScroll = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
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if (Math.abs(scrollTop - currentScroll) > zoomOptions.scrollOffset) {
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setTimeout(close, 150);
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}
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};
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var _handleKeyUp = function _handleKeyUp(event) {
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var key = event.key || event.keyCode;
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// Close if escape key is pressed
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if (key === 'Escape' || key === 'Esc' || key === 27) {
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close();
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}
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};
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var update = function update() {
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var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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var newOptions = options;
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if (options.background) {
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overlay.style.background = options.background;
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}
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if (options.container && options.container instanceof Object) {
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newOptions.container = _extends({}, zoomOptions.container, options.container);
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}
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if (options.template) {
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var template = isNode(options.template) ? options.template : document.querySelector(options.template);
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newOptions.template = template;
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}
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zoomOptions = _extends({}, zoomOptions, newOptions);
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images.forEach(function (image) {
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image.dispatchEvent(createCustomEvent('medium-zoom:update', {
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detail: { zoom: zoom }
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}));
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});
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return zoom;
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};
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var clone = function clone() {
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var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
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return mediumZoom(_extends({}, zoomOptions, options));
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};
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var attach = function attach() {
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var arguments$1 = arguments;
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for (var _len = arguments.length, selectors = Array(_len), _key = 0; _key < _len; _key++) {
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selectors[_key] = arguments$1[_key];
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}
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var newImages = selectors.reduce(function (imagesAccumulator, currentSelector) {
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return [].concat(imagesAccumulator, getImagesFromSelector(currentSelector));
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}, []);
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newImages.filter(function (newImage) {
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return images.indexOf(newImage) === -1;
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}).forEach(function (newImage) {
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images.push(newImage);
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newImage.classList.add('medium-zoom-image');
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});
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eventListeners.forEach(function (_ref) {
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var type = _ref.type,
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listener = _ref.listener,
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options = _ref.options;
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newImages.forEach(function (image) {
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image.addEventListener(type, listener, options);
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});
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});
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return zoom;
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};
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var detach = function detach() {
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var arguments$1 = arguments;
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for (var _len2 = arguments.length, selectors = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
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selectors[_key2] = arguments$1[_key2];
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}
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if (active.zoomed) {
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close();
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}
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var imagesToDetach = selectors.length > 0 ? selectors.reduce(function (imagesAccumulator, currentSelector) {
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return [].concat(imagesAccumulator, getImagesFromSelector(currentSelector));
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}, []) : images;
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imagesToDetach.forEach(function (image) {
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image.classList.remove('medium-zoom-image');
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image.dispatchEvent(createCustomEvent('medium-zoom:detach', {
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detail: { zoom: zoom }
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}));
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});
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images = images.filter(function (image) {
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return imagesToDetach.indexOf(image) === -1;
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});
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return zoom;
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};
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var on = function on(type, listener) {
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var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
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images.forEach(function (image) {
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image.addEventListener('medium-zoom:' + type, listener, options);
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});
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eventListeners.push({ type: 'medium-zoom:' + type, listener: listener, options: options });
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return zoom;
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};
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var off = function off(type, listener) {
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var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
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images.forEach(function (image) {
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image.removeEventListener('medium-zoom:' + type, listener, options);
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});
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eventListeners = eventListeners.filter(function (eventListener) {
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return !(eventListener.type === 'medium-zoom:' + type && eventListener.listener.toString() === listener.toString());
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});
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return zoom;
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};
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var open = function open() {
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var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
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target = _ref2.target;
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var _animate = function _animate() {
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var container = {
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width: document.documentElement.clientWidth,
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height: document.documentElement.clientHeight,
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left: 0,
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top: 0,
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right: 0,
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bottom: 0
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};
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var viewportWidth = void 0;
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var viewportHeight = void 0;
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if (zoomOptions.container) {
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if (zoomOptions.container instanceof Object) {
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// The container is given as an object with properties like width, height, left, top
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container = _extends({}, container, zoomOptions.container);
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// We need to adjust custom options like container.right or container.bottom
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viewportWidth = container.width - container.left - container.right - zoomOptions.margin * 2;
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viewportHeight = container.height - container.top - container.bottom - zoomOptions.margin * 2;
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} else {
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// The container is given as an element
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var zoomContainer = isNode(zoomOptions.container) ? zoomOptions.container : document.querySelector(zoomOptions.container);
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var _zoomContainer$getBou = zoomContainer.getBoundingClientRect(),
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_width = _zoomContainer$getBou.width,
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_height = _zoomContainer$getBou.height,
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_left = _zoomContainer$getBou.left,
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_top = _zoomContainer$getBou.top;
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container = _extends({}, container, {
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width: _width,
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height: _height,
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left: _left,
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top: _top
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});
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}
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}
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viewportWidth = viewportWidth || container.width - zoomOptions.margin * 2;
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viewportHeight = viewportHeight || container.height - zoomOptions.margin * 2;
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var zoomTarget = active.zoomedHd || active.original;
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var naturalWidth = isSvg(zoomTarget) ? viewportWidth : zoomTarget.naturalWidth || viewportWidth;
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var naturalHeight = isSvg(zoomTarget) ? viewportHeight : zoomTarget.naturalHeight || viewportHeight;
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var _zoomTarget$getBoundi = zoomTarget.getBoundingClientRect(),
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top = _zoomTarget$getBoundi.top,
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left = _zoomTarget$getBoundi.left,
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width = _zoomTarget$getBoundi.width,
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height = _zoomTarget$getBoundi.height;
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var scaleX = Math.min(naturalWidth, viewportWidth) / width;
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var scaleY = Math.min(naturalHeight, viewportHeight) / height;
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var scale = Math.min(scaleX, scaleY);
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var translateX = (-left + (viewportWidth - width) / 2 + zoomOptions.margin + container.left) / scale;
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var translateY = (-top + (viewportHeight - height) / 2 + zoomOptions.margin + container.top) / scale;
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var transform = 'scale(' + scale + ') translate3d(' + translateX + 'px, ' + translateY + 'px, 0)';
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active.zoomed.style.transform = transform;
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if (active.zoomedHd) {
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active.zoomedHd.style.transform = transform;
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}
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};
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return new Promise(function (resolve) {
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if (target && images.indexOf(target) === -1) {
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resolve(zoom);
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return;
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}
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var _handleOpenEnd = function _handleOpenEnd() {
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isAnimating = false;
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active.zoomed.removeEventListener('transitionend', _handleOpenEnd);
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active.original.dispatchEvent(createCustomEvent('medium-zoom:opened', {
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detail: { zoom: zoom }
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}));
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resolve(zoom);
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};
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if (active.zoomed) {
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resolve(zoom);
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return;
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}
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if (target) {
|
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// The zoom was triggered manually via a click
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active.original = target;
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} else if (images.length > 0) {
|
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var _images = images;
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active.original = _images[0];
|
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} else {
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resolve(zoom);
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return;
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}
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active.original.dispatchEvent(createCustomEvent('medium-zoom:open', {
|
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detail: { zoom: zoom }
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}));
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|
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scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop || 0;
|
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isAnimating = true;
|
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active.zoomed = cloneTarget(active.original);
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|
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document.body.appendChild(overlay);
|
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|
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if (zoomOptions.template) {
|
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var template = isNode(zoomOptions.template) ? zoomOptions.template : document.querySelector(zoomOptions.template);
|
||||
active.template = document.createElement('div');
|
||||
active.template.appendChild(template.content.cloneNode(true));
|
||||
|
||||
document.body.appendChild(active.template);
|
||||
}
|
||||
|
||||
document.body.appendChild(active.zoomed);
|
||||
|
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window.requestAnimationFrame(function () {
|
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document.body.classList.add('medium-zoom--opened');
|
||||
});
|
||||
|
||||
active.original.classList.add('medium-zoom-image--hidden');
|
||||
active.zoomed.classList.add('medium-zoom-image--opened');
|
||||
|
||||
active.zoomed.addEventListener('click', close);
|
||||
active.zoomed.addEventListener('transitionend', _handleOpenEnd);
|
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|
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if (active.original.getAttribute('data-zoom-src')) {
|
||||
active.zoomedHd = active.zoomed.cloneNode();
|
||||
|
||||
// Reset the `scrset` property or the HD image won't load.
|
||||
active.zoomedHd.removeAttribute('srcset');
|
||||
active.zoomedHd.removeAttribute('sizes');
|
||||
|
||||
active.zoomedHd.src = active.zoomed.getAttribute('data-zoom-src');
|
||||
|
||||
active.zoomedHd.onerror = function () {
|
||||
clearInterval(getZoomTargetSize);
|
||||
console.warn('Unable to reach the zoom image target ' + active.zoomedHd.src);
|
||||
active.zoomedHd = null;
|
||||
_animate();
|
||||
};
|
||||
|
||||
// We need to access the natural size of the full HD
|
||||
// target as fast as possible to compute the animation.
|
||||
var getZoomTargetSize = setInterval(function () {
|
||||
if ( active.zoomedHd.complete) {
|
||||
clearInterval(getZoomTargetSize);
|
||||
active.zoomedHd.classList.add('medium-zoom-image--opened');
|
||||
active.zoomedHd.addEventListener('click', close);
|
||||
document.body.appendChild(active.zoomedHd);
|
||||
_animate();
|
||||
}
|
||||
}, 10);
|
||||
} else if (active.original.hasAttribute('srcset')) {
|
||||
// If an image has a `srcset` attribuet, we don't know the dimensions of the
|
||||
// zoomed (HD) image (like when `data-zoom-src` is specified).
|
||||
// Therefore the approach is quite similar.
|
||||
active.zoomedHd = active.zoomed.cloneNode();
|
||||
|
||||
// Resetting the sizes attribute tells the browser to load the
|
||||
// image best fitting the current viewport size, respecting the `srcset`.
|
||||
active.zoomedHd.removeAttribute('sizes');
|
||||
|
||||
// In Firefox, the `loading` attribute needs to be set to `eager` (default
|
||||
// value) for the load event to be fired.
|
||||
active.zoomedHd.removeAttribute('loading');
|
||||
|
||||
// Wait for the load event of the hd image. This will fire if the image
|
||||
// is already cached.
|
||||
var loadEventListener = active.zoomedHd.addEventListener('load', function () {
|
||||
active.zoomedHd.removeEventListener('load', loadEventListener);
|
||||
active.zoomedHd.classList.add('medium-zoom-image--opened');
|
||||
active.zoomedHd.addEventListener('click', close);
|
||||
document.body.appendChild(active.zoomedHd);
|
||||
_animate();
|
||||
});
|
||||
} else {
|
||||
_animate();
|
||||
}
|
||||
});
|
||||
};
|
||||
|
||||
var close = function close() {
|
||||
return new Promise(function (resolve) {
|
||||
if (isAnimating || !active.original) {
|
||||
resolve(zoom);
|
||||
return;
|
||||
}
|
||||
|
||||
var _handleCloseEnd = function _handleCloseEnd() {
|
||||
active.original.classList.remove('medium-zoom-image--hidden');
|
||||
document.body.removeChild(active.zoomed);
|
||||
if (active.zoomedHd) {
|
||||
document.body.removeChild(active.zoomedHd);
|
||||
}
|
||||
document.body.removeChild(overlay);
|
||||
active.zoomed.classList.remove('medium-zoom-image--opened');
|
||||
if (active.template) {
|
||||
document.body.removeChild(active.template);
|
||||
}
|
||||
|
||||
isAnimating = false;
|
||||
active.zoomed.removeEventListener('transitionend', _handleCloseEnd);
|
||||
|
||||
active.original.dispatchEvent(createCustomEvent('medium-zoom:closed', {
|
||||
detail: { zoom: zoom }
|
||||
}));
|
||||
|
||||
active.original = null;
|
||||
active.zoomed = null;
|
||||
active.zoomedHd = null;
|
||||
active.template = null;
|
||||
|
||||
resolve(zoom);
|
||||
};
|
||||
|
||||
isAnimating = true;
|
||||
document.body.classList.remove('medium-zoom--opened');
|
||||
active.zoomed.style.transform = '';
|
||||
|
||||
if (active.zoomedHd) {
|
||||
active.zoomedHd.style.transform = '';
|
||||
}
|
||||
|
||||
// Fade out the template so it's not too abrupt
|
||||
if (active.template) {
|
||||
active.template.style.transition = 'opacity 150ms';
|
||||
active.template.style.opacity = 0;
|
||||
}
|
||||
|
||||
active.original.dispatchEvent(createCustomEvent('medium-zoom:close', {
|
||||
detail: { zoom: zoom }
|
||||
}));
|
||||
|
||||
active.zoomed.addEventListener('transitionend', _handleCloseEnd);
|
||||
});
|
||||
};
|
||||
|
||||
var toggle = function toggle() {
|
||||
var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
|
||||
target = _ref3.target;
|
||||
|
||||
if (active.original) {
|
||||
return close();
|
||||
}
|
||||
|
||||
return open({ target: target });
|
||||
};
|
||||
|
||||
var getOptions = function getOptions() {
|
||||
return zoomOptions;
|
||||
};
|
||||
|
||||
var getImages = function getImages() {
|
||||
return images;
|
||||
};
|
||||
|
||||
var getZoomedImage = function getZoomedImage() {
|
||||
return active.original;
|
||||
};
|
||||
|
||||
var images = [];
|
||||
var eventListeners = [];
|
||||
var isAnimating = false;
|
||||
var scrollTop = 0;
|
||||
var zoomOptions = options;
|
||||
var active = {
|
||||
original: null,
|
||||
zoomed: null,
|
||||
zoomedHd: null,
|
||||
template: null
|
||||
|
||||
// If the selector is omitted, it's replaced by the options
|
||||
};if (Object.prototype.toString.call(selector) === '[object Object]') {
|
||||
zoomOptions = selector;
|
||||
} else if (selector || typeof selector === 'string' // to process empty string as a selector
|
||||
) {
|
||||
attach(selector);
|
||||
}
|
||||
|
||||
// Apply the default option values
|
||||
zoomOptions = _extends({
|
||||
margin: 0,
|
||||
background: '#fff',
|
||||
scrollOffset: 40,
|
||||
container: null,
|
||||
template: null
|
||||
}, zoomOptions);
|
||||
|
||||
var overlay = createOverlay(zoomOptions.background);
|
||||
|
||||
document.addEventListener('click', _handleClick);
|
||||
document.addEventListener('keyup', _handleKeyUp);
|
||||
document.addEventListener('scroll', _handleScroll);
|
||||
window.addEventListener('resize', close);
|
||||
|
||||
var zoom = {
|
||||
open: open,
|
||||
close: close,
|
||||
toggle: toggle,
|
||||
update: update,
|
||||
clone: clone,
|
||||
attach: attach,
|
||||
detach: detach,
|
||||
on: on,
|
||||
off: off,
|
||||
getOptions: getOptions,
|
||||
getImages: getImages,
|
||||
getZoomedImage: getZoomedImage
|
||||
};
|
||||
|
||||
return zoom;
|
||||
};
|
||||
|
||||
function styleInject(css, ref) {
|
||||
if ( ref === void 0 ) { ref = {}; }
|
||||
var insertAt = ref.insertAt;
|
||||
|
||||
if (!css || typeof document === 'undefined') { return; }
|
||||
|
||||
var head = document.head || document.getElementsByTagName('head')[0];
|
||||
var style = document.createElement('style');
|
||||
style.type = 'text/css';
|
||||
|
||||
if (insertAt === 'top') {
|
||||
if (head.firstChild) {
|
||||
head.insertBefore(style, head.firstChild);
|
||||
} else {
|
||||
head.appendChild(style);
|
||||
}
|
||||
} else {
|
||||
head.appendChild(style);
|
||||
}
|
||||
|
||||
if (style.styleSheet) {
|
||||
style.styleSheet.cssText = css;
|
||||
} else {
|
||||
style.appendChild(document.createTextNode(css));
|
||||
}
|
||||
}
|
||||
|
||||
var css = ".medium-zoom-overlay{position:fixed;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity .3s;will-change:opacity}.medium-zoom--opened .medium-zoom-overlay{cursor:pointer;cursor:zoom-out;opacity:1}.medium-zoom-image{cursor:pointer;cursor:zoom-in;transition:transform .3s cubic-bezier(.2,0,.2,1)!important}.medium-zoom-image--hidden{visibility:hidden}.medium-zoom-image--opened{position:relative;cursor:pointer;cursor:zoom-out;will-change:transform}";
|
||||
styleInject(css);
|
||||
|
||||
/* eslint-disable no-unused-vars */
|
||||
|
||||
var matchesSelector =
|
||||
Element.prototype.matches ||
|
||||
Element.prototype.webkitMatchesSelector ||
|
||||
Element.prototype.msMatchesSelector;
|
||||
|
||||
function install(hook) {
|
||||
var zoom;
|
||||
|
||||
hook.doneEach(function (_) {
|
||||
var elms = Array.apply(
|
||||
null,
|
||||
document.querySelectorAll(
|
||||
'.markdown-section img:not(.emoji):not([data-no-zoom])'
|
||||
)
|
||||
);
|
||||
|
||||
elms = elms.filter(function (elm) { return matchesSelector.call(elm, 'a img') === false; });
|
||||
|
||||
if (zoom) {
|
||||
zoom.detach();
|
||||
}
|
||||
|
||||
zoom = mediumZoom(elms);
|
||||
});
|
||||
}
|
||||
|
||||
$docsify.plugins = [].concat(install, $docsify.plugins);
|
||||
|
||||
}());
|
||||
Reference in New Issue
Block a user