1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
|
import * as __WEBPACK_EXTERNAL_MODULE__wordpress_interactivity_8e89b257__ from "@wordpress/interactivity";
/******/ // The require scope
/******/ var __webpack_require__ = {};
/******/
/************************************************************************/
/******/ /* webpack/runtime/define property getters */
/******/ (() => {
/******/ // define getter functions for harmony exports
/******/ __webpack_require__.d = (exports, definition) => {
/******/ for(var key in definition) {
/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
/******/ }
/******/ }
/******/ };
/******/ })();
/******/
/******/ /* webpack/runtime/hasOwnProperty shorthand */
/******/ (() => {
/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
/******/ })();
/******/
/************************************************************************/
var __webpack_exports__ = {};
;// CONCATENATED MODULE: external "@wordpress/interactivity"
var x = (y) => {
var x = {}; __webpack_require__.d(x, y); return x
}
var y = (x) => (() => (x))
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) });
;// CONCATENATED MODULE: ./node_modules/@wordpress/block-library/build-module/image/view.js
/**
* WordPress dependencies
*/
/**
* Tracks whether user is touching screen; used to differentiate behavior for
* touch and mouse input.
*
* @type {boolean}
*/
let isTouching = false;
/**
* Tracks the last time the screen was touched; used to differentiate behavior
* for touch and mouse input.
*
* @type {number}
*/
let lastTouchTime = 0;
/**
* Stores the image reference of the currently opened lightbox.
*
* @type {HTMLElement}
*/
let imageRef;
/**
* Stores the button reference of the currently opened lightbox.
*
* @type {HTMLElement}
*/
let buttonRef;
const {
state,
actions,
callbacks
} = (0,interactivity_namespaceObject.store)('core/image', {
state: {
currentImage: {},
get overlayOpened() {
return state.currentImage.currentSrc;
},
get roleAttribute() {
return state.overlayOpened ? 'dialog' : null;
},
get ariaModal() {
return state.overlayOpened ? 'true' : null;
},
get enlargedSrc() {
return state.currentImage.uploadedSrc || 'data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=';
},
get imgStyles() {
return state.overlayOpened && `${state.currentImage.imgStyles?.replace(/;$/, '')}; object-fit:cover;`;
}
},
actions: {
showLightbox() {
const ctx = (0,interactivity_namespaceObject.getContext)();
// Bails out if the image has not loaded yet.
if (!ctx.imageRef?.complete) {
return;
}
// Stores the positons of the scroll to fix it until the overlay is
// closed.
state.scrollTopReset = document.documentElement.scrollTop;
state.scrollLeftReset = document.documentElement.scrollLeft;
// Moves the information of the expaned image to the state.
ctx.currentSrc = ctx.imageRef.currentSrc;
imageRef = ctx.imageRef;
buttonRef = ctx.buttonRef;
state.currentImage = ctx;
state.overlayEnabled = true;
// Computes the styles of the overlay for the animation.
callbacks.setOverlayStyles();
},
hideLightbox() {
if (state.overlayEnabled) {
// Waits until the close animation has completed before allowing a
// user to scroll again. The duration of this animation is defined in
// the `styles.scss` file, but in any case we should wait a few
// milliseconds longer than the duration, otherwise a user may scroll
// too soon and cause the animation to look sloppy.
setTimeout(function () {
// Delays before changing the focus. Otherwise the focus ring will
// appear on Firefox before the image has finished animating, which
// looks broken.
buttonRef.focus({
preventScroll: true
});
// Resets the current image to mark the overlay as closed.
state.currentImage = {};
imageRef = null;
buttonRef = null;
}, 450);
// Starts the overlay closing animation. The showClosingAnimation
// class is used to avoid showing it on page load.
state.showClosingAnimation = true;
state.overlayEnabled = false;
}
},
handleKeydown(event) {
if (state.overlayEnabled) {
// Focuses the close button when the user presses the tab key.
if (event.key === 'Tab') {
event.preventDefault();
const {
ref
} = (0,interactivity_namespaceObject.getElement)();
ref.querySelector('button').focus();
}
// Closes the lightbox when the user presses the escape key.
if (event.key === 'Escape') {
actions.hideLightbox();
}
}
},
handleTouchMove(event) {
// On mobile devices, prevents triggering the scroll event because
// otherwise the page jumps around when it resets the scroll position.
// This also means that closing the lightbox requires that a user
// perform a simple tap. This may be changed in the future if there is a
// better alternative to override or reset the scroll position during
// swipe actions.
if (state.overlayEnabled) {
event.preventDefault();
}
},
handleTouchStart() {
isTouching = true;
},
handleTouchEnd() {
// Waits a few milliseconds before resetting to ensure that pinch to
// zoom works consistently on mobile devices when the lightbox is open.
lastTouchTime = Date.now();
isTouching = false;
},
handleScroll() {
// Prevents scrolling behaviors that trigger content shift while the
// lightbox is open. It would be better to accomplish through CSS alone,
// but using overflow: hidden is currently the only way to do so and
// that causes a layout to shift and prevents the zoom animation from
// working in some cases because it's not possible to account for the
// layout shift when doing the animation calculations. Instead, it uses
// JavaScript to prevent and reset the scrolling behavior.
if (state.overlayOpened) {
// Avoids overriding the scroll behavior on mobile devices because
// doing so breaks the pinch to zoom functionality, and users should
// be able to zoom in further on the high-res image.
if (!isTouching && Date.now() - lastTouchTime > 450) {
// It doesn't rely on `event.preventDefault()` to prevent scrolling
// because the scroll event can't be canceled, so it resets the
// position instead.
window.scrollTo(state.scrollLeftReset, state.scrollTopReset);
}
}
}
},
callbacks: {
setOverlayStyles() {
if (!imageRef) return;
let {
naturalWidth,
naturalHeight,
offsetWidth: originalWidth,
offsetHeight: originalHeight
} = imageRef;
let {
x: screenPosX,
y: screenPosY
} = imageRef.getBoundingClientRect();
// Natural ratio of the image clicked to open the lightbox.
const naturalRatio = naturalWidth / naturalHeight;
// Original ratio of the image clicked to open the lightbox.
let originalRatio = originalWidth / originalHeight;
// If it has object-fit: contain, recalculates the original sizes
// and the screen position without the blank spaces.
if (state.currentImage.scaleAttr === 'contain') {
if (naturalRatio > originalRatio) {
const heightWithoutSpace = originalWidth / naturalRatio;
// Recalculates screen position without the top space.
screenPosY += (originalHeight - heightWithoutSpace) / 2;
originalHeight = heightWithoutSpace;
} else {
const widthWithoutSpace = originalHeight * naturalRatio;
// Recalculates screen position without the left space.
screenPosX += (originalWidth - widthWithoutSpace) / 2;
originalWidth = widthWithoutSpace;
}
}
originalRatio = originalWidth / originalHeight;
// Typically, it uses the image's full-sized dimensions. If those
// dimensions have not been set (i.e. an external image with only one
// size), the image's dimensions in the lightbox are the same
// as those of the image in the content.
let imgMaxWidth = parseFloat(state.currentImage.targetWidth !== 'none' ? state.currentImage.targetWidth : naturalWidth);
let imgMaxHeight = parseFloat(state.currentImage.targetHeight !== 'none' ? state.currentImage.targetHeight : naturalHeight);
// Ratio of the biggest image stored in the database.
let imgRatio = imgMaxWidth / imgMaxHeight;
let containerMaxWidth = imgMaxWidth;
let containerMaxHeight = imgMaxHeight;
let containerWidth = imgMaxWidth;
let containerHeight = imgMaxHeight;
// Checks if the target image has a different ratio than the original
// one (thumbnail). Recalculates the width and height.
if (naturalRatio.toFixed(2) !== imgRatio.toFixed(2)) {
if (naturalRatio > imgRatio) {
// If the width is reached before the height, it keeps the maxWidth
// and recalculates the height unless the difference between the
// maxHeight and the reducedHeight is higher than the maxWidth,
// where it keeps the reducedHeight and recalculate the width.
const reducedHeight = imgMaxWidth / naturalRatio;
if (imgMaxHeight - reducedHeight > imgMaxWidth) {
imgMaxHeight = reducedHeight;
imgMaxWidth = reducedHeight * naturalRatio;
} else {
imgMaxHeight = imgMaxWidth / naturalRatio;
}
} else {
// If the height is reached before the width, it keeps the maxHeight
// and recalculate the width unlesss the difference between the
// maxWidth and the reducedWidth is higher than the maxHeight, where
// it keeps the reducedWidth and recalculate the height.
const reducedWidth = imgMaxHeight * naturalRatio;
if (imgMaxWidth - reducedWidth > imgMaxHeight) {
imgMaxWidth = reducedWidth;
imgMaxHeight = reducedWidth / naturalRatio;
} else {
imgMaxWidth = imgMaxHeight * naturalRatio;
}
}
containerWidth = imgMaxWidth;
containerHeight = imgMaxHeight;
imgRatio = imgMaxWidth / imgMaxHeight;
// Calculates the max size of the container.
if (originalRatio > imgRatio) {
containerMaxWidth = imgMaxWidth;
containerMaxHeight = containerMaxWidth / originalRatio;
} else {
containerMaxHeight = imgMaxHeight;
containerMaxWidth = containerMaxHeight * originalRatio;
}
}
// If the image has been pixelated on purpose, it keeps that size.
if (originalWidth > containerWidth || originalHeight > containerHeight) {
containerWidth = originalWidth;
containerHeight = originalHeight;
}
// Calculates the final lightbox image size and the scale factor.
// MaxWidth is either the window container (accounting for padding) or
// the image resolution.
let horizontalPadding = 0;
if (window.innerWidth > 480) {
horizontalPadding = 80;
} else if (window.innerWidth > 1920) {
horizontalPadding = 160;
}
const verticalPadding = 80;
const targetMaxWidth = Math.min(window.innerWidth - horizontalPadding, containerWidth);
const targetMaxHeight = Math.min(window.innerHeight - verticalPadding, containerHeight);
const targetContainerRatio = targetMaxWidth / targetMaxHeight;
if (originalRatio > targetContainerRatio) {
// If targetMaxWidth is reached before targetMaxHeight.
containerWidth = targetMaxWidth;
containerHeight = containerWidth / originalRatio;
} else {
// If targetMaxHeight is reached before targetMaxWidth.
containerHeight = targetMaxHeight;
containerWidth = containerHeight * originalRatio;
}
const containerScale = originalWidth / containerWidth;
const lightboxImgWidth = imgMaxWidth * (containerWidth / containerMaxWidth);
const lightboxImgHeight = imgMaxHeight * (containerHeight / containerMaxHeight);
// As of this writing, using the calculations above will render the
// lightbox with a small, erroneous whitespace on the left side of the
// image in iOS Safari, perhaps due to an inconsistency in how browsers
// handle absolute positioning and CSS transformation. In any case,
// adding 1 pixel to the container width and height solves the problem,
// though this can be removed if the issue is fixed in the future.
state.overlayStyles = `
:root {
--wp--lightbox-initial-top-position: ${screenPosY}px;
--wp--lightbox-initial-left-position: ${screenPosX}px;
--wp--lightbox-container-width: ${containerWidth + 1}px;
--wp--lightbox-container-height: ${containerHeight + 1}px;
--wp--lightbox-image-width: ${lightboxImgWidth}px;
--wp--lightbox-image-height: ${lightboxImgHeight}px;
--wp--lightbox-scale: ${containerScale};
--wp--lightbox-scrollbar-width: ${window.innerWidth - document.documentElement.clientWidth}px;
}
`;
},
setButtonStyles() {
const ctx = (0,interactivity_namespaceObject.getContext)();
const {
ref
} = (0,interactivity_namespaceObject.getElement)();
ctx.imageRef = ref;
const {
naturalWidth,
naturalHeight,
offsetWidth,
offsetHeight
} = ref;
// If the image isn't loaded yet, it can't calculate where the button
// should be.
if (naturalWidth === 0 || naturalHeight === 0) {
return;
}
const figure = ref.parentElement;
const figureWidth = ref.parentElement.clientWidth;
// It needs special handling for the height because a caption will cause
// the figure to be taller than the image, which means it needs to
// account for that when calculating the placement of the button in the
// top right corner of the image.
let figureHeight = ref.parentElement.clientHeight;
const caption = figure.querySelector('figcaption');
if (caption) {
const captionComputedStyle = window.getComputedStyle(caption);
if (!['absolute', 'fixed'].includes(captionComputedStyle.position)) {
figureHeight = figureHeight - caption.offsetHeight - parseFloat(captionComputedStyle.marginTop) - parseFloat(captionComputedStyle.marginBottom);
}
}
const buttonOffsetTop = figureHeight - offsetHeight;
const buttonOffsetRight = figureWidth - offsetWidth;
// In the case of an image with object-fit: contain, the size of the
// <img> element can be larger than the image itself, so it needs to
// calculate where to place the button.
if (ctx.scaleAttr === 'contain') {
// Natural ratio of the image.
const naturalRatio = naturalWidth / naturalHeight;
// Offset ratio of the image.
const offsetRatio = offsetWidth / offsetHeight;
if (naturalRatio >= offsetRatio) {
// If it reaches the width first, it keeps the width and compute the
// height.
const referenceHeight = offsetWidth / naturalRatio;
ctx.imageButtonTop = (offsetHeight - referenceHeight) / 2 + buttonOffsetTop + 16;
ctx.imageButtonRight = buttonOffsetRight + 16;
} else {
// If it reaches the height first, it keeps the height and compute
// the width.
const referenceWidth = offsetHeight * naturalRatio;
ctx.imageButtonTop = buttonOffsetTop + 16;
ctx.imageButtonRight = (offsetWidth - referenceWidth) / 2 + buttonOffsetRight + 16;
}
} else {
ctx.imageButtonTop = buttonOffsetTop + 16;
ctx.imageButtonRight = buttonOffsetRight + 16;
}
},
setOverlayFocus() {
if (state.overlayEnabled) {
// Moves the focus to the dialog when it opens.
const {
ref
} = (0,interactivity_namespaceObject.getElement)();
ref.focus();
}
},
initTriggerButton() {
const ctx = (0,interactivity_namespaceObject.getContext)();
const {
ref
} = (0,interactivity_namespaceObject.getElement)();
ctx.buttonRef = ref;
}
}
}, {
lock: true
});
|