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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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|
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;// CONCATENATED MODULE: external "@wordpress/interactivity" |
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var x = y => { var x = {}; __webpack_require__.d(x, y); return x; } |
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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: ./packages/block-library/src/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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|
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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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/** |
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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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/** |
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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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/** |
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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. |
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let figureHeight = ref.parentElement.clientHeight; |
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const caption = figure.querySelector('figcaption'); |
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if (caption) { |
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const captionComputedStyle = window.getComputedStyle(caption); |
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if (!['absolute', 'fixed'].includes(captionComputedStyle.position)) { |
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figureHeight = figureHeight - caption.offsetHeight - parseFloat(captionComputedStyle.marginTop) - parseFloat(captionComputedStyle.marginBottom); |
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} |
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} |
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const buttonOffsetTop = figureHeight - offsetHeight; |
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const buttonOffsetRight = figureWidth - offsetWidth; |
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|
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// In the case of an image with object-fit: contain, the size of the |
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// <img> element can be larger than the image itself, so it needs to |
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// calculate where to place the button. |
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if (ctx.scaleAttr === 'contain') { |
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// Natural ratio of the image. |
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const naturalRatio = naturalWidth / naturalHeight; |
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// Offset ratio of the image. |
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const offsetRatio = offsetWidth / offsetHeight; |
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if (naturalRatio >= offsetRatio) { |
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// If it reaches the width first, it keeps the width and compute the |
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// height. |
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const referenceHeight = offsetWidth / naturalRatio; |
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ctx.imageButtonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16; |
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ctx.imageButtonRight = buttonOffsetRight + 16; |
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} else { |
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// If it reaches the height first, it keeps the height and compute |
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// the width. |
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const referenceWidth = offsetHeight * naturalRatio; |
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ctx.imageButtonTop = buttonOffsetTop + 16; |
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ctx.imageButtonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16; |
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} |
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} else { |
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ctx.imageButtonTop = buttonOffsetTop + 16; |
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ctx.imageButtonRight = buttonOffsetRight + 16; |
| 398 |
} |
| 399 |
}, |
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setOverlayFocus() { |
| 401 |
if (state.overlayEnabled) { |
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// Moves the focus to the dialog when it opens. |
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const { |
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ref |
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} = (0,interactivity_namespaceObject.getElement)(); |
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ref.focus(); |
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} |
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}, |
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initTriggerButton() { |
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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.buttonRef = ref; |
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} |
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} |
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}, { |
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lock: true |
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}); |
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|
