build/modules/block-library/image
view.js
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view.js.map
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view.min.asset.php
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view.min.js
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view.min.js.map
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view.js in Gutenberg 23.2.0, at build/modules/block-library/image/view.js
| 1 | // packages/block-library/build-module/image/view.mjs |
| 2 | import { |
| 3 | store, |
| 4 | getContext, |
| 5 | getElement, |
| 6 | getConfig, |
| 7 | withSyncEvent, |
| 8 | withScope |
| 9 | } from "@wordpress/interactivity"; |
| 10 | |
| 11 | // packages/block-library/build-module/image/constants.mjs |
| 12 | var IMAGE_PRELOAD_DELAY = 200; |
| 13 | |
| 14 | // packages/block-library/build-module/image/view.mjs |
| 15 | var isTouching = false; |
| 16 | var lastTouchTime = 0; |
| 17 | var touchStartEvent = { |
| 18 | startX: 0, |
| 19 | startY: 0, |
| 20 | startTime: 0 |
| 21 | }; |
| 22 | var focusableSelectors = [ |
| 23 | ".wp-lightbox-close-button", |
| 24 | ".wp-lightbox-navigation-button" |
| 25 | ]; |
| 26 | function getImageSrc({ uploadedSrc }) { |
| 27 | return uploadedSrc || "data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs="; |
| 28 | } |
| 29 | function getImageSrcset({ lightboxSrcset }) { |
| 30 | return lightboxSrcset || ""; |
| 31 | } |
| 32 | var { state, actions, callbacks } = store( |
| 33 | "core/image", |
| 34 | { |
| 35 | state: { |
| 36 | selectedImageId: null, |
| 37 | selectedGalleryId: null, |
| 38 | preloadTimers: /* @__PURE__ */ new Map(), |
| 39 | preloadedImageIds: /* @__PURE__ */ new Set(), |
| 40 | get galleryImages() { |
| 41 | if (!state.selectedGalleryId) { |
| 42 | return [state.selectedImageId]; |
| 43 | } |
| 44 | return Object.entries(state.metadata).filter( |
| 45 | ([, value]) => value.galleryId === state.selectedGalleryId |
| 46 | ).sort(([, a], [, b]) => { |
| 47 | const orderA = a.order ?? 0; |
| 48 | const orderB = b.order ?? 0; |
| 49 | return orderA - orderB; |
| 50 | }).map(([key]) => key); |
| 51 | }, |
| 52 | get selectedImageIndex() { |
| 53 | return state.galleryImages.findIndex( |
| 54 | (id) => id === state.selectedImageId |
| 55 | ); |
| 56 | }, |
| 57 | get selectedImage() { |
| 58 | return state.metadata[state.selectedImageId]; |
| 59 | }, |
| 60 | get hasNavigationIcon() { |
| 61 | const { navigationButtonType } = state.selectedImage; |
| 62 | return navigationButtonType === "icon" || navigationButtonType === "both"; |
| 63 | }, |
| 64 | get hasNavigationText() { |
| 65 | const { navigationButtonType } = state.selectedImage; |
| 66 | return navigationButtonType === "text" || navigationButtonType === "both"; |
| 67 | }, |
| 68 | get thisImage() { |
| 69 | const { imageId } = getContext(); |
| 70 | return state.metadata[imageId]; |
| 71 | }, |
| 72 | get hasNavigation() { |
| 73 | return state.galleryImages.length > 1; |
| 74 | }, |
| 75 | get hasNextImage() { |
| 76 | return state.selectedImageIndex + 1 < state.galleryImages.length; |
| 77 | }, |
| 78 | get hasPreviousImage() { |
| 79 | return state.selectedImageIndex - 1 >= 0; |
| 80 | }, |
| 81 | get overlayOpened() { |
| 82 | return state.selectedImageId !== null; |
| 83 | }, |
| 84 | get roleAttribute() { |
| 85 | return state.overlayOpened ? "dialog" : null; |
| 86 | }, |
| 87 | get ariaModal() { |
| 88 | return state.overlayOpened ? "true" : null; |
| 89 | }, |
| 90 | get ariaLabel() { |
| 91 | return state.selectedImage.customAriaLabel || getConfig().defaultAriaLabel; |
| 92 | }, |
| 93 | get closeButtonAriaLabel() { |
| 94 | return state.hasNavigationText ? void 0 : getConfig().closeButtonText; |
| 95 | }, |
| 96 | get prevButtonAriaLabel() { |
| 97 | return state.hasNavigationText ? void 0 : getConfig().prevButtonText; |
| 98 | }, |
| 99 | get nextButtonAriaLabel() { |
| 100 | return state.hasNavigationText ? void 0 : getConfig().nextButtonText; |
| 101 | }, |
| 102 | get enlargedSrc() { |
| 103 | return getImageSrc(state.selectedImage); |
| 104 | }, |
| 105 | get enlargedSrcset() { |
| 106 | return getImageSrcset(state.selectedImage); |
| 107 | }, |
| 108 | get figureStyles() { |
| 109 | return state.overlayOpened && `${state.selectedImage.figureStyles?.replace( |
| 110 | /margin[^;]*;?/g, |
| 111 | "" |
| 112 | )};`; |
| 113 | }, |
| 114 | get imgStyles() { |
| 115 | return state.overlayOpened && `${state.selectedImage.imgStyles?.replace( |
| 116 | /;$/, |
| 117 | "" |
| 118 | )}; object-fit:cover;`; |
| 119 | }, |
| 120 | get isContentHidden() { |
| 121 | const ctx = getContext(); |
| 122 | return state.overlayEnabled && state.selectedImageId === ctx.imageId; |
| 123 | }, |
| 124 | get isContentVisible() { |
| 125 | const ctx = getContext(); |
| 126 | return !state.overlayEnabled && state.selectedImageId === ctx.imageId; |
| 127 | } |
| 128 | }, |
| 129 | actions: { |
| 130 | showLightbox() { |
| 131 | const { imageId } = getContext(); |
| 132 | if (!state.metadata[imageId].imageRef?.complete) { |
| 133 | return; |
| 134 | } |
| 135 | state.scrollTopReset = document.documentElement.scrollTop; |
| 136 | state.scrollLeftReset = document.documentElement.scrollLeft; |
| 137 | state.selectedImageId = imageId; |
| 138 | const { galleryId } = getContext("core/gallery") || {}; |
| 139 | state.selectedGalleryId = galleryId || null; |
| 140 | state.overlayEnabled = true; |
| 141 | callbacks.setOverlayStyles(); |
| 142 | }, |
| 143 | hideLightbox() { |
| 144 | if (state.overlayEnabled) { |
| 145 | state.overlayEnabled = false; |
| 146 | setTimeout(function() { |
| 147 | state.selectedImage.buttonRef.focus({ |
| 148 | preventScroll: true |
| 149 | }); |
| 150 | state.selectedImageId = null; |
| 151 | state.selectedGalleryId = null; |
| 152 | }, 450); |
| 153 | } |
| 154 | }, |
| 155 | showPreviousImage: withSyncEvent((event) => { |
| 156 | event.stopPropagation(); |
| 157 | const nextIndex = state.hasPreviousImage ? state.selectedImageIndex - 1 : state.galleryImages.length - 1; |
| 158 | state.selectedImageId = state.galleryImages[nextIndex]; |
| 159 | callbacks.setOverlayStyles(); |
| 160 | }), |
| 161 | showNextImage: withSyncEvent((event) => { |
| 162 | event.stopPropagation(); |
| 163 | const nextIndex = state.hasNextImage ? state.selectedImageIndex + 1 : 0; |
| 164 | state.selectedImageId = state.galleryImages[nextIndex]; |
| 165 | callbacks.setOverlayStyles(); |
| 166 | }), |
| 167 | handleKeydown: withSyncEvent((event) => { |
| 168 | if (state.overlayEnabled) { |
| 169 | if (event.key === "Escape") { |
| 170 | actions.hideLightbox(); |
| 171 | } else if (event.key === "ArrowLeft") { |
| 172 | actions.showPreviousImage(event); |
| 173 | } else if (event.key === "ArrowRight") { |
| 174 | actions.showNextImage(event); |
| 175 | } else if (event.key === "Tab") { |
| 176 | const focusableElements = Array.from( |
| 177 | document.querySelectorAll(focusableSelectors) |
| 178 | ); |
| 179 | const firstFocusableElement = focusableElements[0]; |
| 180 | const lastFocusableElement = focusableElements[focusableElements.length - 1]; |
| 181 | if (event.shiftKey && event.target === firstFocusableElement) { |
| 182 | event.preventDefault(); |
| 183 | lastFocusableElement.focus(); |
| 184 | } else if (!event.shiftKey && event.target === lastFocusableElement) { |
| 185 | event.preventDefault(); |
| 186 | firstFocusableElement.focus(); |
| 187 | } |
| 188 | } |
| 189 | } |
| 190 | }), |
| 191 | handleTouchMove: withSyncEvent((event) => { |
| 192 | if (state.overlayEnabled) { |
| 193 | event.preventDefault(); |
| 194 | } |
| 195 | }), |
| 196 | handleTouchStart(event) { |
| 197 | isTouching = true; |
| 198 | const t = event.touches && event.touches[0]; |
| 199 | if (t) { |
| 200 | touchStartEvent.startX = t.clientX; |
| 201 | touchStartEvent.startY = t.clientY; |
| 202 | touchStartEvent.startTime = Date.now(); |
| 203 | } |
| 204 | }, |
| 205 | handleTouchEnd: withSyncEvent((event) => { |
| 206 | const touchEndEvent = event.changedTouches && event.changedTouches[0] || event.touches && event.touches[0]; |
| 207 | const now = Date.now(); |
| 208 | if (touchEndEvent && state.overlayEnabled) { |
| 209 | const deltaX = touchEndEvent.clientX - touchStartEvent.startX; |
| 210 | const deltaY = touchEndEvent.clientY - touchStartEvent.startY; |
| 211 | const absDeltaX = Math.abs(deltaX); |
| 212 | const absDeltaY = Math.abs(deltaY); |
| 213 | const elapsedMs = now - touchStartEvent.startTime; |
| 214 | const isHorizontalSwipe = ( |
| 215 | // Swipe distance is greater than 50px |
| 216 | absDeltaX > 50 && // Horizontal movement is much larger than the vertical movement |
| 217 | absDeltaX > absDeltaY * 1.5 && // Fast action of less than 800ms |
| 218 | elapsedMs < 800 |
| 219 | ); |
| 220 | if (isHorizontalSwipe) { |
| 221 | event.preventDefault(); |
| 222 | if (deltaX < 0) { |
| 223 | actions.showNextImage(event); |
| 224 | } else { |
| 225 | actions.showPreviousImage(event); |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | lastTouchTime = now; |
| 230 | isTouching = false; |
| 231 | }), |
| 232 | handleScroll() { |
| 233 | if (state.overlayOpened) { |
| 234 | if (!isTouching && Date.now() - lastTouchTime > 450) { |
| 235 | window.scrollTo( |
| 236 | state.scrollLeftReset, |
| 237 | state.scrollTopReset |
| 238 | ); |
| 239 | } |
| 240 | } |
| 241 | }, |
| 242 | preloadImage() { |
| 243 | const { imageId } = getContext(); |
| 244 | if (state.preloadedImageIds.has(imageId)) { |
| 245 | return; |
| 246 | } |
| 247 | const imageMetadata = state.metadata[imageId]; |
| 248 | const imageLink = document.createElement("link"); |
| 249 | imageLink.rel = "preload"; |
| 250 | imageLink.as = "image"; |
| 251 | imageLink.href = getImageSrc(imageMetadata); |
| 252 | const srcset = getImageSrcset(imageMetadata); |
| 253 | if (srcset) { |
| 254 | imageLink.setAttribute("imagesrcset", srcset); |
| 255 | imageLink.setAttribute("imagesizes", "100vw"); |
| 256 | } |
| 257 | document.head.appendChild(imageLink); |
| 258 | state.preloadedImageIds.add(imageId); |
| 259 | }, |
| 260 | preloadImageWithDelay() { |
| 261 | const { imageId } = getContext(); |
| 262 | actions.cancelPreload(); |
| 263 | const timerId = setTimeout( |
| 264 | withScope(() => { |
| 265 | actions.preloadImage(); |
| 266 | state.preloadTimers.delete(imageId); |
| 267 | }), |
| 268 | IMAGE_PRELOAD_DELAY |
| 269 | ); |
| 270 | state.preloadTimers.set(imageId, timerId); |
| 271 | }, |
| 272 | cancelPreload() { |
| 273 | const { imageId } = getContext(); |
| 274 | if (state.preloadTimers.has(imageId)) { |
| 275 | clearTimeout(state.preloadTimers.get(imageId)); |
| 276 | state.preloadTimers.delete(imageId); |
| 277 | } |
| 278 | } |
| 279 | }, |
| 280 | callbacks: { |
| 281 | setOverlayStyles() { |
| 282 | if (!state.overlayEnabled) { |
| 283 | return; |
| 284 | } |
| 285 | let { |
| 286 | naturalWidth, |
| 287 | naturalHeight, |
| 288 | offsetWidth: originalWidth, |
| 289 | offsetHeight: originalHeight |
| 290 | } = state.selectedImage.imageRef; |
| 291 | let { x: screenPosX, y: screenPosY } = state.selectedImage.imageRef.getBoundingClientRect(); |
| 292 | const naturalRatio = naturalWidth / naturalHeight; |
| 293 | let originalRatio = originalWidth / originalHeight; |
| 294 | if (state.selectedImage.scaleAttr === "contain") { |
| 295 | if (naturalRatio > originalRatio) { |
| 296 | const heightWithoutSpace = originalWidth / naturalRatio; |
| 297 | screenPosY += (originalHeight - heightWithoutSpace) / 2; |
| 298 | originalHeight = heightWithoutSpace; |
| 299 | } else { |
| 300 | const widthWithoutSpace = originalHeight * naturalRatio; |
| 301 | screenPosX += (originalWidth - widthWithoutSpace) / 2; |
| 302 | originalWidth = widthWithoutSpace; |
| 303 | } |
| 304 | } |
| 305 | originalRatio = originalWidth / originalHeight; |
| 306 | let imgMaxWidth = parseFloat( |
| 307 | state.selectedImage.targetWidth && state.selectedImage.targetWidth !== "none" ? state.selectedImage.targetWidth : naturalWidth |
| 308 | ); |
| 309 | let imgMaxHeight = parseFloat( |
| 310 | state.selectedImage.targetHeight && state.selectedImage.targetHeight !== "none" ? state.selectedImage.targetHeight : naturalHeight |
| 311 | ); |
| 312 | let imgRatio = imgMaxWidth / imgMaxHeight; |
| 313 | let containerMaxWidth = imgMaxWidth; |
| 314 | let containerMaxHeight = imgMaxHeight; |
| 315 | let containerWidth = imgMaxWidth; |
| 316 | let containerHeight = imgMaxHeight; |
| 317 | if (naturalRatio.toFixed(2) !== imgRatio.toFixed(2)) { |
| 318 | if (naturalRatio > imgRatio) { |
| 319 | const reducedHeight = imgMaxWidth / naturalRatio; |
| 320 | if (imgMaxHeight - reducedHeight > imgMaxWidth) { |
| 321 | imgMaxHeight = reducedHeight; |
| 322 | imgMaxWidth = reducedHeight * naturalRatio; |
| 323 | } else { |
| 324 | imgMaxHeight = imgMaxWidth / naturalRatio; |
| 325 | } |
| 326 | } else { |
| 327 | const reducedWidth = imgMaxHeight * naturalRatio; |
| 328 | if (imgMaxWidth - reducedWidth > imgMaxHeight) { |
| 329 | imgMaxWidth = reducedWidth; |
| 330 | imgMaxHeight = reducedWidth / naturalRatio; |
| 331 | } else { |
| 332 | imgMaxWidth = imgMaxHeight * naturalRatio; |
| 333 | } |
| 334 | } |
| 335 | containerWidth = imgMaxWidth; |
| 336 | containerHeight = imgMaxHeight; |
| 337 | imgRatio = imgMaxWidth / imgMaxHeight; |
| 338 | if (originalRatio > imgRatio) { |
| 339 | containerMaxWidth = imgMaxWidth; |
| 340 | containerMaxHeight = containerMaxWidth / originalRatio; |
| 341 | } else { |
| 342 | containerMaxHeight = imgMaxHeight; |
| 343 | containerMaxWidth = containerMaxHeight * originalRatio; |
| 344 | } |
| 345 | } |
| 346 | if (originalWidth > containerWidth || originalHeight > containerHeight) { |
| 347 | containerWidth = originalWidth; |
| 348 | containerHeight = originalHeight; |
| 349 | } |
| 350 | let horizontalPadding = 0; |
| 351 | let verticalPadding = 160; |
| 352 | if (480 < window.innerWidth) { |
| 353 | horizontalPadding = 80; |
| 354 | verticalPadding = 160; |
| 355 | } |
| 356 | if (960 < window.innerWidth) { |
| 357 | horizontalPadding = state.hasNavigation ? 320 : 80; |
| 358 | verticalPadding = 80; |
| 359 | } |
| 360 | const targetMaxWidth = Math.min( |
| 361 | window.innerWidth - horizontalPadding, |
| 362 | containerWidth |
| 363 | ); |
| 364 | const targetMaxHeight = Math.min( |
| 365 | window.innerHeight - verticalPadding, |
| 366 | containerHeight |
| 367 | ); |
| 368 | const targetContainerRatio = targetMaxWidth / targetMaxHeight; |
| 369 | if (originalRatio > targetContainerRatio) { |
| 370 | containerWidth = targetMaxWidth; |
| 371 | containerHeight = containerWidth / originalRatio; |
| 372 | } else { |
| 373 | containerHeight = targetMaxHeight; |
| 374 | containerWidth = containerHeight * originalRatio; |
| 375 | } |
| 376 | const containerScale = originalWidth / containerWidth; |
| 377 | const lightboxImgWidth = imgMaxWidth * (containerWidth / containerMaxWidth); |
| 378 | const lightboxImgHeight = imgMaxHeight * (containerHeight / containerMaxHeight); |
| 379 | state.overlayStyles = ` |
| 380 | --wp--lightbox-initial-top-position: ${screenPosY}px; |
| 381 | --wp--lightbox-initial-left-position: ${screenPosX}px; |
| 382 | --wp--lightbox-container-width: ${containerWidth + 1}px; |
| 383 | --wp--lightbox-container-height: ${containerHeight + 1}px; |
| 384 | --wp--lightbox-image-width: ${lightboxImgWidth}px; |
| 385 | --wp--lightbox-image-height: ${lightboxImgHeight}px; |
| 386 | --wp--lightbox-scale: ${containerScale}; |
| 387 | --wp--lightbox-scrollbar-width: ${window.innerWidth - document.documentElement.clientWidth}px; |
| 388 | `; |
| 389 | }, |
| 390 | setButtonStyles() { |
| 391 | const { ref } = getElement(); |
| 392 | if (!ref) { |
| 393 | return; |
| 394 | } |
| 395 | const { imageId } = getContext(); |
| 396 | state.metadata[imageId].imageRef = ref; |
| 397 | state.metadata[imageId].currentSrc = ref.currentSrc; |
| 398 | const { |
| 399 | naturalWidth, |
| 400 | naturalHeight, |
| 401 | offsetWidth, |
| 402 | offsetHeight |
| 403 | } = ref; |
| 404 | if (naturalWidth === 0 || naturalHeight === 0) { |
| 405 | return; |
| 406 | } |
| 407 | const figure = ref.parentElement; |
| 408 | const figureWidth = ref.parentElement.clientWidth; |
| 409 | let figureHeight = ref.parentElement.clientHeight; |
| 410 | const caption = figure.querySelector("figcaption"); |
| 411 | if (caption) { |
| 412 | const captionComputedStyle = window.getComputedStyle(caption); |
| 413 | if (!["absolute", "fixed"].includes( |
| 414 | captionComputedStyle.position |
| 415 | )) { |
| 416 | figureHeight = figureHeight - caption.offsetHeight - parseFloat(captionComputedStyle.marginTop) - parseFloat(captionComputedStyle.marginBottom); |
| 417 | } |
| 418 | } |
| 419 | const buttonOffsetTop = figureHeight - offsetHeight; |
| 420 | const buttonOffsetRight = figureWidth - offsetWidth; |
| 421 | let buttonTop = buttonOffsetTop + 16; |
| 422 | let buttonRight = buttonOffsetRight + 16; |
| 423 | if (state.metadata[imageId].scaleAttr === "contain") { |
| 424 | const naturalRatio = naturalWidth / naturalHeight; |
| 425 | const offsetRatio = offsetWidth / offsetHeight; |
| 426 | if (naturalRatio >= offsetRatio) { |
| 427 | const referenceHeight = offsetWidth / naturalRatio; |
| 428 | buttonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16; |
| 429 | buttonRight = buttonOffsetRight + 16; |
| 430 | } else { |
| 431 | const referenceWidth = offsetHeight * naturalRatio; |
| 432 | buttonTop = buttonOffsetTop + 16; |
| 433 | buttonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16; |
| 434 | } |
| 435 | } |
| 436 | 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 | } |
| 459 | } |
| 460 | }, |
| 461 | { lock: true } |
| 462 | ); |
| 463 | //# sourceMappingURL=view.js.map |
| 464 |