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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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getConfig, |
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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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var touchStartEvent = { |
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startX: 0, |
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startY: 0, |
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startTime: 0 |
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}; |
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var focusableSelectors = [ |
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".wp-lightbox-close-button", |
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".wp-lightbox-navigation-button" |
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]; |
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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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selectedImageId: null, |
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selectedGalleryId: null, |
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preloadTimers: /* @__PURE__ */ new Map(), |
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preloadedImageIds: /* @__PURE__ */ new Set(), |
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get galleryImages() { |
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if (!state.selectedGalleryId) { |
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return [state.selectedImageId]; |
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} |
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return Object.entries(state.metadata).filter( |
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([, value]) => value.galleryId === state.selectedGalleryId |
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).sort(([, a], [, b]) => { |
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const orderA = a.order ?? 0; |
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const orderB = b.order ?? 0; |
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return orderA - orderB; |
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}).map(([key]) => key); |
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}, |
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get selectedImageIndex() { |
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return state.galleryImages.findIndex( |
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(id) => id === state.selectedImageId |
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); |
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}, |
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get selectedImage() { |
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return state.metadata[state.selectedImageId]; |
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}, |
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get hasNavigationIcon() { |
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const { navigationButtonType } = state.selectedImage; |
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return navigationButtonType === "icon" || navigationButtonType === "both"; |
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}, |
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get hasNavigationText() { |
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const { navigationButtonType } = state.selectedImage; |
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return navigationButtonType === "text" || navigationButtonType === "both"; |
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}, |
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get thisImage() { |
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const { imageId } = getContext(); |
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return state.metadata[imageId]; |
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}, |
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get hasNavigation() { |
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return state.galleryImages.length > 1; |
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}, |
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get hasNextImage() { |
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return state.selectedImageIndex + 1 < state.galleryImages.length; |
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}, |
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get hasPreviousImage() { |
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return state.selectedImageIndex - 1 >= 0; |
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}, |
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get overlayOpened() { |
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return state.selectedImageId !== 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 ariaLabel() { |
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return state.selectedImage.customAriaLabel || getConfig().defaultAriaLabel; |
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}, |
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get closeButtonAriaLabel() { |
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return state.hasNavigationText ? void 0 : getConfig().closeButtonText; |
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}, |
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get prevButtonAriaLabel() { |
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return state.hasNavigationText ? void 0 : getConfig().prevButtonText; |
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}, |
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get nextButtonAriaLabel() { |
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return state.hasNavigationText ? void 0 : getConfig().nextButtonText; |
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}, |
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get enlargedSrc() { |
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return getImageSrc(state.selectedImage); |
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}, |
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get enlargedSrcset() { |
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return getImageSrcset(state.selectedImage); |
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}, |
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get figureStyles() { |
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return state.overlayOpened && `${state.selectedImage.figureStyles?.replace( |
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/margin[^;]*;?/g, |
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"" |
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)};`; |
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}, |
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get imgStyles() { |
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return state.overlayOpened && `${state.selectedImage.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 isContentHidden() { |
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const ctx = getContext(); |
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return state.overlayEnabled && state.selectedImageId === 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.selectedImageId === 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.selectedImageId = imageId; |
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const { galleryId } = getContext("core/gallery") || {}; |
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state.selectedGalleryId = galleryId || null; |
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state.overlayEnabled = true; |
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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.selectedImage.buttonRef.focus({ |
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preventScroll: true |
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}); |
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state.selectedImageId = null; |
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state.selectedGalleryId = null; |
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}, 450); |
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} |
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}, |
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showPreviousImage: withSyncEvent((event) => { |
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event.stopPropagation(); |
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const nextIndex = state.hasPreviousImage ? state.selectedImageIndex - 1 : state.galleryImages.length - 1; |
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state.selectedImageId = state.galleryImages[nextIndex]; |
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callbacks.setOverlayStyles(); |
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}), |
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showNextImage: withSyncEvent((event) => { |
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event.stopPropagation(); |
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const nextIndex = state.hasNextImage ? state.selectedImageIndex + 1 : 0; |
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state.selectedImageId = state.galleryImages[nextIndex]; |
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callbacks.setOverlayStyles(); |
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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 === "Escape") { |
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actions.hideLightbox(); |
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} else if (event.key === "ArrowLeft") { |
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actions.showPreviousImage(event); |
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} else if (event.key === "ArrowRight") { |
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actions.showNextImage(event); |
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} else if (event.key === "Tab") { |
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const focusableElements = Array.from( |
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document.querySelectorAll(focusableSelectors) |
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); |
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const firstFocusableElement = focusableElements[0]; |
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const lastFocusableElement = focusableElements[focusableElements.length - 1]; |
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if (event.shiftKey && event.target === firstFocusableElement) { |
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event.preventDefault(); |
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lastFocusableElement.focus(); |
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} else if (!event.shiftKey && event.target === lastFocusableElement) { |
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event.preventDefault(); |
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firstFocusableElement.focus(); |
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} |
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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(event) { |
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isTouching = true; |
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const t = event.touches && event.touches[0]; |
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if (t) { |
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touchStartEvent.startX = t.clientX; |
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touchStartEvent.startY = t.clientY; |
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touchStartEvent.startTime = Date.now(); |
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} |
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}, |
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handleTouchEnd: withSyncEvent((event) => { |
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const touchEndEvent = event.changedTouches && event.changedTouches[0] || event.touches && event.touches[0]; |
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const now = Date.now(); |
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if (touchEndEvent && state.overlayEnabled) { |
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const deltaX = touchEndEvent.clientX - touchStartEvent.startX; |
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const deltaY = touchEndEvent.clientY - touchStartEvent.startY; |
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const absDeltaX = Math.abs(deltaX); |
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const absDeltaY = Math.abs(deltaY); |
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const elapsedMs = now - touchStartEvent.startTime; |
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const isHorizontalSwipe = ( |
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// Swipe distance is greater than 50px |
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absDeltaX > 50 && // Horizontal movement is much larger than the vertical movement |
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absDeltaX > absDeltaY * 1.5 && // Fast action of less than 800ms |
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elapsedMs < 800 |
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); |
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if (isHorizontalSwipe) { |
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event.preventDefault(); |
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if (deltaX < 0) { |
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actions.showNextImage(event); |
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} else { |
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actions.showPreviousImage(event); |
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} |
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} |
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} |
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lastTouchTime = 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.selectedImage.imageRef; |
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let { x: screenPosX, y: screenPosY } = state.selectedImage.imageRef.getBoundingClientRect(); |
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const naturalRatio = naturalWidth / naturalHeight; |
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let originalRatio = originalWidth / originalHeight; |
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if (state.selectedImage.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.selectedImage.targetWidth && state.selectedImage.targetWidth !== "none" ? state.selectedImage.targetWidth : naturalWidth |
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); |
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let imgMaxHeight = parseFloat( |
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state.selectedImage.targetHeight && state.selectedImage.targetHeight !== "none" ? state.selectedImage.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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let verticalPadding = 160; |
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if (480 < window.innerWidth) { |
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horizontalPadding = 80; |
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verticalPadding = 160; |
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} |
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if (960 < window.innerWidth) { |
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horizontalPadding = state.hasNavigation ? 320 : 80; |
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verticalPadding = 80; |
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} |
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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 buttonTop = buttonOffsetTop + 16; |
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let buttonRight = 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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buttonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16; |
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buttonRight = buttonOffsetRight + 16; |
| 430 |
} else { |
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const referenceWidth = offsetHeight * naturalRatio; |
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buttonTop = buttonOffsetTop + 16; |
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buttonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16; |
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} |
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} |
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state.metadata[imageId].buttonTop = buttonTop; |
| 437 |
state.metadata[imageId].buttonRight = buttonRight; |
| 438 |
}, |
| 439 |
setOverlayFocus() { |
| 440 |
if (state.overlayEnabled) { |
| 441 |
const { ref } = getElement(); |
| 442 |
ref.focus(); |
| 443 |
} |
| 444 |
}, |
| 445 |
setInertElements() { |
| 446 |
document.querySelectorAll("body > :not(.wp-lightbox-overlay)").forEach((el) => { |
| 447 |
if (state.overlayEnabled) { |
| 448 |
el.setAttribute("inert", ""); |
| 449 |
} else { |
| 450 |
el.removeAttribute("inert"); |
| 451 |
} |
| 452 |
}); |
| 453 |
}, |
| 454 |
initTriggerButton() { |
| 455 |
const { imageId } = getContext(); |
| 456 |
const { ref } = getElement(); |
| 457 |
state.metadata[imageId].buttonRef = ref; |
| 458 |
} |
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} |
| 460 |
}, |
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{ lock: true } |
| 462 |
); |
| 463 |
//# sourceMappingURL=view.js.map |
| 464 |
|
