423 lines
17 KiB
JavaScript
423 lines
17 KiB
JavaScript
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import * as __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__ from "@wordpress/interactivity";
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/******/ // The require scope
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/******/ var __webpack_require__ = {};
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/******/
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/************************************************************************/
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/******/ /* webpack/runtime/define property getters */
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/******/ (() => {
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/******/ // define getter functions for harmony exports
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/******/ __webpack_require__.d = (exports, definition) => {
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/******/ for(var key in definition) {
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
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/******/ }
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/******/ }
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/******/ };
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/******/ })();
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/******/
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/******/ /* webpack/runtime/hasOwnProperty shorthand */
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/******/ (() => {
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/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
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/******/ })();
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/******/
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/************************************************************************/
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var __webpack_exports__ = {};
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;// CONCATENATED MODULE: external "@wordpress/interactivity"
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var x = (y) => {
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var x = {}; __webpack_require__.d(x, y); return x
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}
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var y = (x) => (() => (x))
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const interactivity_namespaceObject = x({ ["getContext"]: () => (__WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.getContext), ["getElement"]: () => (__WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.getElement), ["store"]: () => (__WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__.store) });
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;// CONCATENATED MODULE: ./node_modules/@wordpress/block-library/build-module/image/view.js
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/**
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* WordPress dependencies
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*/
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/**
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* Tracks whether user is touching screen; used to differentiate behavior for
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* touch and mouse input.
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*
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* @type {boolean}
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*/
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let isTouching = false;
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/**
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* Tracks the last time the screen was touched; used to differentiate behavior
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* for touch and mouse input.
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*
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* @type {number}
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*/
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let lastTouchTime = 0;
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/**
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* Stores the image reference of the currently opened lightbox.
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*
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* @type {HTMLElement}
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*/
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let imageRef;
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/**
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* Stores the button reference of the currently opened lightbox.
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*
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* @type {HTMLElement}
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*/
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let buttonRef;
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const {
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state,
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actions,
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callbacks
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} = (0,interactivity_namespaceObject.store)('core/image', {
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state: {
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currentImage: {},
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get overlayOpened() {
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return state.currentImage.currentSrc;
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},
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get roleAttribute() {
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return state.overlayOpened ? 'dialog' : null;
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},
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get ariaModal() {
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return state.overlayOpened ? 'true' : null;
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},
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get enlargedSrc() {
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return state.currentImage.uploadedSrc || 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';
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},
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get imgStyles() {
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return state.overlayOpened && `${state.currentImage.imgStyles?.replace(/;$/, '')}; object-fit:cover;`;
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}
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},
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actions: {
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showLightbox() {
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const ctx = (0,interactivity_namespaceObject.getContext)();
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// Bails out if the image has not loaded yet.
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if (!ctx.imageRef?.complete) {
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return;
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}
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// Stores the positons of the scroll to fix it until the overlay is
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// closed.
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state.scrollTopReset = document.documentElement.scrollTop;
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state.scrollLeftReset = document.documentElement.scrollLeft;
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// Moves the information of the expaned image to the state.
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ctx.currentSrc = ctx.imageRef.currentSrc;
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imageRef = ctx.imageRef;
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buttonRef = ctx.buttonRef;
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state.currentImage = ctx;
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state.overlayEnabled = true;
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// Computes the styles of the overlay for the animation.
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callbacks.setOverlayStyles();
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},
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hideLightbox() {
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if (state.overlayEnabled) {
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// Waits until the close animation has completed before allowing a
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// user to scroll again. The duration of this animation is defined in
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// the `styles.scss` file, but in any case we should wait a few
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// milliseconds longer than the duration, otherwise a user may scroll
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// too soon and cause the animation to look sloppy.
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setTimeout(function () {
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// Delays before changing the focus. Otherwise the focus ring will
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// appear on Firefox before the image has finished animating, which
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// looks broken.
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buttonRef.focus({
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preventScroll: true
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});
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// Resets the current image to mark the overlay as closed.
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state.currentImage = {};
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imageRef = null;
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buttonRef = null;
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}, 450);
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// Starts the overlay closing animation. The showClosingAnimation
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// class is used to avoid showing it on page load.
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state.showClosingAnimation = true;
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state.overlayEnabled = false;
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}
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},
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handleKeydown(event) {
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if (state.overlayEnabled) {
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// Focuses the close button when the user presses the tab key.
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if (event.key === 'Tab') {
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event.preventDefault();
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const {
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ref
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} = (0,interactivity_namespaceObject.getElement)();
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ref.querySelector('button').focus();
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}
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// Closes the lightbox when the user presses the escape key.
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if (event.key === 'Escape') {
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actions.hideLightbox();
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}
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}
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},
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handleTouchMove(event) {
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// On mobile devices, prevents triggering the scroll event because
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// otherwise the page jumps around when it resets the scroll position.
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// This also means that closing the lightbox requires that a user
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// perform a simple tap. This may be changed in the future if there is a
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// better alternative to override or reset the scroll position during
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// swipe actions.
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if (state.overlayEnabled) {
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event.preventDefault();
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}
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},
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handleTouchStart() {
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isTouching = true;
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},
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handleTouchEnd() {
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// Waits a few milliseconds before resetting to ensure that pinch to
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// zoom works consistently on mobile devices when the lightbox is open.
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lastTouchTime = Date.now();
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isTouching = false;
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},
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handleScroll() {
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// Prevents scrolling behaviors that trigger content shift while the
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// lightbox is open. It would be better to accomplish through CSS alone,
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// but using overflow: hidden is currently the only way to do so and
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// that causes a layout to shift and prevents the zoom animation from
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// working in some cases because it's not possible to account for the
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// layout shift when doing the animation calculations. Instead, it uses
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// JavaScript to prevent and reset the scrolling behavior.
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if (state.overlayOpened) {
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// Avoids overriding the scroll behavior on mobile devices because
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// doing so breaks the pinch to zoom functionality, and users should
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// be able to zoom in further on the high-res image.
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if (!isTouching && Date.now() - lastTouchTime > 450) {
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// It doesn't rely on `event.preventDefault()` to prevent scrolling
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// because the scroll event can't be canceled, so it resets the
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// position instead.
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window.scrollTo(state.scrollLeftReset, state.scrollTopReset);
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}
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}
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}
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},
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callbacks: {
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setOverlayStyles() {
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if (!imageRef) return;
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let {
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naturalWidth,
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naturalHeight,
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offsetWidth: originalWidth,
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offsetHeight: originalHeight
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} = imageRef;
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let {
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x: screenPosX,
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y: screenPosY
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} = imageRef.getBoundingClientRect();
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// Natural ratio of the image clicked to open the lightbox.
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const naturalRatio = naturalWidth / naturalHeight;
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// Original ratio of the image clicked to open the lightbox.
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let originalRatio = originalWidth / originalHeight;
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// If it has object-fit: contain, recalculates the original sizes
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// and the screen position without the blank spaces.
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if (state.currentImage.scaleAttr === 'contain') {
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if (naturalRatio > originalRatio) {
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const heightWithoutSpace = originalWidth / naturalRatio;
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// Recalculates screen position without the top space.
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screenPosY += (originalHeight - heightWithoutSpace) / 2;
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originalHeight = heightWithoutSpace;
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} else {
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const widthWithoutSpace = originalHeight * naturalRatio;
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// Recalculates screen position without the left space.
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screenPosX += (originalWidth - widthWithoutSpace) / 2;
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originalWidth = widthWithoutSpace;
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}
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}
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originalRatio = originalWidth / originalHeight;
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// Typically, it uses the image's full-sized dimensions. If those
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// dimensions have not been set (i.e. an external image with only one
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// size), the image's dimensions in the lightbox are the same
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// as those of the image in the content.
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let imgMaxWidth = parseFloat(state.currentImage.targetWidth !== 'none' ? state.currentImage.targetWidth : naturalWidth);
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let imgMaxHeight = parseFloat(state.currentImage.targetHeight !== 'none' ? state.currentImage.targetHeight : naturalHeight);
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// Ratio of the biggest image stored in the database.
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let imgRatio = imgMaxWidth / imgMaxHeight;
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let containerMaxWidth = imgMaxWidth;
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let containerMaxHeight = imgMaxHeight;
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let containerWidth = imgMaxWidth;
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let containerHeight = imgMaxHeight;
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// Checks if the target image has a different ratio than the original
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// one (thumbnail). Recalculates the width and height.
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if (naturalRatio.toFixed(2) !== imgRatio.toFixed(2)) {
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if (naturalRatio > imgRatio) {
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// If the width is reached before the height, it keeps the maxWidth
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// and recalculates the height unless the difference between the
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// maxHeight and the reducedHeight is higher than the maxWidth,
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// where it keeps the reducedHeight and recalculate the width.
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const reducedHeight = imgMaxWidth / naturalRatio;
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if (imgMaxHeight - reducedHeight > imgMaxWidth) {
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imgMaxHeight = reducedHeight;
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imgMaxWidth = reducedHeight * naturalRatio;
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} else {
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imgMaxHeight = imgMaxWidth / naturalRatio;
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}
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} else {
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// If the height is reached before the width, it keeps the maxHeight
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// and recalculate the width unlesss the difference between the
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// maxWidth and the reducedWidth is higher than the maxHeight, where
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// it keeps the reducedWidth and recalculate the height.
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const reducedWidth = imgMaxHeight * naturalRatio;
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if (imgMaxWidth - reducedWidth > imgMaxHeight) {
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imgMaxWidth = reducedWidth;
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imgMaxHeight = reducedWidth / naturalRatio;
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} else {
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imgMaxWidth = imgMaxHeight * naturalRatio;
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}
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}
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containerWidth = imgMaxWidth;
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containerHeight = imgMaxHeight;
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imgRatio = imgMaxWidth / imgMaxHeight;
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// Calculates the max size of the container.
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if (originalRatio > imgRatio) {
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containerMaxWidth = imgMaxWidth;
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containerMaxHeight = containerMaxWidth / originalRatio;
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} else {
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containerMaxHeight = imgMaxHeight;
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containerMaxWidth = containerMaxHeight * originalRatio;
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}
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}
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// If the image has been pixelated on purpose, it keeps that size.
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if (originalWidth > containerWidth || originalHeight > containerHeight) {
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containerWidth = originalWidth;
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containerHeight = originalHeight;
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}
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// Calculates the final lightbox image size and the scale factor.
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// MaxWidth is either the window container (accounting for padding) or
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// the image resolution.
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let horizontalPadding = 0;
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if (window.innerWidth > 480) {
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horizontalPadding = 80;
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} else if (window.innerWidth > 1920) {
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horizontalPadding = 160;
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}
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const verticalPadding = 80;
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const targetMaxWidth = Math.min(window.innerWidth - horizontalPadding, containerWidth);
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const targetMaxHeight = Math.min(window.innerHeight - verticalPadding, containerHeight);
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const targetContainerRatio = targetMaxWidth / targetMaxHeight;
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if (originalRatio > targetContainerRatio) {
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// If targetMaxWidth is reached before targetMaxHeight.
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containerWidth = targetMaxWidth;
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containerHeight = containerWidth / originalRatio;
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} else {
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// If targetMaxHeight is reached before targetMaxWidth.
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containerHeight = targetMaxHeight;
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containerWidth = containerHeight * originalRatio;
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}
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const containerScale = originalWidth / containerWidth;
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const lightboxImgWidth = imgMaxWidth * (containerWidth / containerMaxWidth);
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const lightboxImgHeight = imgMaxHeight * (containerHeight / containerMaxHeight);
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// As of this writing, using the calculations above will render the
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// lightbox with a small, erroneous whitespace on the left side of the
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// image in iOS Safari, perhaps due to an inconsistency in how browsers
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// handle absolute positioning and CSS transformation. In any case,
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// adding 1 pixel to the container width and height solves the problem,
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// though this can be removed if the issue is fixed in the future.
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state.overlayStyles = `
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:root {
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--wp--lightbox-initial-top-position: ${screenPosY}px;
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--wp--lightbox-initial-left-position: ${screenPosX}px;
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--wp--lightbox-container-width: ${containerWidth + 1}px;
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--wp--lightbox-container-height: ${containerHeight + 1}px;
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--wp--lightbox-image-width: ${lightboxImgWidth}px;
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--wp--lightbox-image-height: ${lightboxImgHeight}px;
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--wp--lightbox-scale: ${containerScale};
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--wp--lightbox-scrollbar-width: ${window.innerWidth - document.documentElement.clientWidth}px;
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}
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`;
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},
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setButtonStyles() {
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const ctx = (0,interactivity_namespaceObject.getContext)();
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const {
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ref
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} = (0,interactivity_namespaceObject.getElement)();
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ctx.imageRef = ref;
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const {
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naturalWidth,
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naturalHeight,
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offsetWidth,
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offsetHeight
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} = ref;
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// If the image isn't loaded yet, it can't calculate where the button
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// should be.
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if (naturalWidth === 0 || naturalHeight === 0) {
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return;
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}
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const figure = ref.parentElement;
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const figureWidth = ref.parentElement.clientWidth;
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// It needs special handling for the height because a caption will cause
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// the figure to be taller than the image, which means it needs to
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// account for that when calculating the placement of the button in the
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||
|
|
// top right corner of the image.
|
||
|
|
let figureHeight = ref.parentElement.clientHeight;
|
||
|
|
const caption = figure.querySelector('figcaption');
|
||
|
|
if (caption) {
|
||
|
|
const captionComputedStyle = window.getComputedStyle(caption);
|
||
|
|
if (!['absolute', 'fixed'].includes(captionComputedStyle.position)) {
|
||
|
|
figureHeight = figureHeight - caption.offsetHeight - parseFloat(captionComputedStyle.marginTop) - parseFloat(captionComputedStyle.marginBottom);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
const buttonOffsetTop = figureHeight - offsetHeight;
|
||
|
|
const buttonOffsetRight = figureWidth - offsetWidth;
|
||
|
|
|
||
|
|
// In the case of an image with object-fit: contain, the size of the
|
||
|
|
// <img> element can be larger than the image itself, so it needs to
|
||
|
|
// calculate where to place the button.
|
||
|
|
if (ctx.scaleAttr === 'contain') {
|
||
|
|
// Natural ratio of the image.
|
||
|
|
const naturalRatio = naturalWidth / naturalHeight;
|
||
|
|
// Offset ratio of the image.
|
||
|
|
const offsetRatio = offsetWidth / offsetHeight;
|
||
|
|
if (naturalRatio >= offsetRatio) {
|
||
|
|
// If it reaches the width first, it keeps the width and compute the
|
||
|
|
// height.
|
||
|
|
const referenceHeight = offsetWidth / naturalRatio;
|
||
|
|
ctx.imageButtonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16;
|
||
|
|
ctx.imageButtonRight = buttonOffsetRight + 16;
|
||
|
|
} else {
|
||
|
|
// If it reaches the height first, it keeps the height and compute
|
||
|
|
// the width.
|
||
|
|
const referenceWidth = offsetHeight * naturalRatio;
|
||
|
|
ctx.imageButtonTop = buttonOffsetTop + 16;
|
||
|
|
ctx.imageButtonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
ctx.imageButtonTop = buttonOffsetTop + 16;
|
||
|
|
ctx.imageButtonRight = buttonOffsetRight + 16;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
setOverlayFocus() {
|
||
|
|
if (state.overlayEnabled) {
|
||
|
|
// Moves the focus to the dialog when it opens.
|
||
|
|
const {
|
||
|
|
ref
|
||
|
|
} = (0,interactivity_namespaceObject.getElement)();
|
||
|
|
ref.focus();
|
||
|
|
}
|
||
|
|
},
|
||
|
|
initTriggerButton() {
|
||
|
|
const ctx = (0,interactivity_namespaceObject.getContext)();
|
||
|
|
const {
|
||
|
|
ref
|
||
|
|
} = (0,interactivity_namespaceObject.getElement)();
|
||
|
|
ctx.buttonRef = ref;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}, {
|
||
|
|
lock: true
|
||
|
|
});
|
||
|
|
|