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// packages/block-library/build-module/image/view.mjs |
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import { |
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store, |
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getContext, |
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getElement, |
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withSyncEvent, |
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withScope |
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} from "@wordpress/interactivity"; |
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|
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// packages/block-library/build-module/image/constants.mjs |
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var IMAGE_PRELOAD_DELAY = 200; |
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|
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// packages/block-library/build-module/image/view.mjs |
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var isTouching = false; |
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var lastTouchTime = 0; |
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function getImageSrc({ uploadedSrc }) { |
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return uploadedSrc || "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs="; |
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} |
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function getImageSrcset({ lightboxSrcset }) { |
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return lightboxSrcset || ""; |
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} |
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var { state, actions, callbacks } = store( |
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"core/image", |
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{ |
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state: { |
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currentImageId: null, |
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preloadTimers: /* @__PURE__ */ new Map(), |
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preloadedImageIds: /* @__PURE__ */ new Set(), |
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get currentImage() { |
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return state.metadata[state.currentImageId]; |
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}, |
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get overlayOpened() { |
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return state.currentImageId !== null; |
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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 getImageSrc(state.currentImage); |
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}, |
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get enlargedSrcset() { |
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return getImageSrcset(state.currentImage); |
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}, |
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get figureStyles() { |
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return state.overlayOpened && `${state.currentImage.figureStyles?.replace( |
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/margin[^;]*;?/g, |
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"" |
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)};`; |
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}, |
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get imgStyles() { |
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return state.overlayOpened && `${state.currentImage.imgStyles?.replace( |
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/;$/, |
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"" |
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)}; object-fit:cover;`; |
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}, |
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get imageButtonRight() { |
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const { imageId } = getContext(); |
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return state.metadata[imageId].imageButtonRight; |
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}, |
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get imageButtonTop() { |
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const { imageId } = getContext(); |
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return state.metadata[imageId].imageButtonTop; |
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}, |
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get isContentHidden() { |
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const ctx = getContext(); |
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return state.overlayEnabled && state.currentImageId === ctx.imageId; |
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}, |
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get isContentVisible() { |
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const ctx = getContext(); |
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return !state.overlayEnabled && state.currentImageId === ctx.imageId; |
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} |
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}, |
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actions: { |
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showLightbox() { |
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const { imageId } = getContext(); |
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if (!state.metadata[imageId].imageRef?.complete) { |
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return; |
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} |
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state.scrollTopReset = document.documentElement.scrollTop; |
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state.scrollLeftReset = document.documentElement.scrollLeft; |
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state.overlayEnabled = true; |
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state.currentImageId = imageId; |
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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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state.overlayEnabled = false; |
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setTimeout(function() { |
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state.currentImage.buttonRef.focus({ |
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preventScroll: true |
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}); |
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state.currentImageId = null; |
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}, 450); |
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} |
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}, |
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handleKeydown: withSyncEvent((event) => { |
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if (state.overlayEnabled) { |
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if (event.key === "Tab") { |
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event.preventDefault(); |
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const { ref } = getElement(); |
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ref.querySelector("button").focus(); |
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} |
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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: withSyncEvent((event) => { |
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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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lastTouchTime = Date.now(); |
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isTouching = false; |
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}, |
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handleScroll() { |
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if (state.overlayOpened) { |
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if (!isTouching && Date.now() - lastTouchTime > 450) { |
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window.scrollTo( |
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state.scrollLeftReset, |
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state.scrollTopReset |
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); |
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} |
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} |
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}, |
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preloadImage() { |
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const { imageId } = getContext(); |
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if (state.preloadedImageIds.has(imageId)) { |
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return; |
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} |
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const imageMetadata = state.metadata[imageId]; |
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const imageLink = document.createElement("link"); |
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imageLink.rel = "preload"; |
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imageLink.as = "image"; |
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imageLink.href = getImageSrc(imageMetadata); |
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const srcset = getImageSrcset(imageMetadata); |
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if (srcset) { |
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imageLink.setAttribute("imagesrcset", srcset); |
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imageLink.setAttribute("imagesizes", "100vw"); |
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} |
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document.head.appendChild(imageLink); |
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state.preloadedImageIds.add(imageId); |
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}, |
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preloadImageWithDelay() { |
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const { imageId } = getContext(); |
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actions.cancelPreload(); |
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const timerId = setTimeout( |
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withScope(() => { |
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actions.preloadImage(); |
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state.preloadTimers.delete(imageId); |
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}), |
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IMAGE_PRELOAD_DELAY |
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); |
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state.preloadTimers.set(imageId, timerId); |
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}, |
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cancelPreload() { |
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const { imageId } = getContext(); |
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if (state.preloadTimers.has(imageId)) { |
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clearTimeout(state.preloadTimers.get(imageId)); |
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state.preloadTimers.delete(imageId); |
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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 (!state.overlayEnabled) { |
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return; |
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} |
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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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} = state.currentImage.imageRef; |
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let { x: screenPosX, y: screenPosY } = state.currentImage.imageRef.getBoundingClientRect(); |
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const naturalRatio = naturalWidth / naturalHeight; |
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let originalRatio = originalWidth / originalHeight; |
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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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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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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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let imgMaxWidth = parseFloat( |
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state.currentImage.targetWidth !== "none" ? state.currentImage.targetWidth : naturalWidth |
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); |
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let imgMaxHeight = parseFloat( |
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state.currentImage.targetHeight !== "none" ? state.currentImage.targetHeight : naturalHeight |
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); |
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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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if (naturalRatio.toFixed(2) !== imgRatio.toFixed(2)) { |
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if (naturalRatio > imgRatio) { |
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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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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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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 (originalWidth > containerWidth || originalHeight > containerHeight) { |
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containerWidth = originalWidth; |
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containerHeight = originalHeight; |
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} |
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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( |
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window.innerWidth - horizontalPadding, |
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containerWidth |
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); |
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const targetMaxHeight = Math.min( |
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window.innerHeight - verticalPadding, |
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containerHeight |
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); |
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const targetContainerRatio = targetMaxWidth / targetMaxHeight; |
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if (originalRatio > targetContainerRatio) { |
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containerWidth = targetMaxWidth; |
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containerHeight = containerWidth / originalRatio; |
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} else { |
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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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state.overlayStyles = ` |
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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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setButtonStyles() { |
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const { ref } = getElement(); |
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if (!ref) { |
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return; |
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} |
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const { imageId } = getContext(); |
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state.metadata[imageId].imageRef = ref; |
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state.metadata[imageId].currentSrc = ref.currentSrc; |
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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 (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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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( |
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captionComputedStyle.position |
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)) { |
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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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let imageButtonTop = buttonOffsetTop + 16; |
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let imageButtonRight = buttonOffsetRight + 16; |
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if (state.metadata[imageId].scaleAttr === "contain") { |
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const naturalRatio = naturalWidth / naturalHeight; |
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const offsetRatio = offsetWidth / offsetHeight; |
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if (naturalRatio >= offsetRatio) { |
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const referenceHeight = offsetWidth / naturalRatio; |
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imageButtonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16; |
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imageButtonRight = buttonOffsetRight + 16; |
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} else { |
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const referenceWidth = offsetHeight * naturalRatio; |
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imageButtonTop = buttonOffsetTop + 16; |
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imageButtonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16; |
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} |
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} |
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state.metadata[imageId].imageButtonTop = imageButtonTop; |
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state.metadata[imageId].imageButtonRight = imageButtonRight; |
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}, |
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setOverlayFocus() { |
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if (state.overlayEnabled) { |
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const { ref } = 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 { imageId } = getContext(); |
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const { ref } = getElement(); |
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state.metadata[imageId].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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//# sourceMappingURL=view.js.map |
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|
