| 1 |
import { IE11OrLess } from './BrowserInfo.js'; |
| 2 |
import Sortable from './Sortable.js'; |
| 3 |
|
| 4 |
const captureMode = { |
| 5 |
capture: false, |
| 6 |
passive: false |
| 7 |
}; |
| 8 |
|
| 9 |
function on(el, event, fn) { |
| 10 |
el.addEventListener(event, fn, !IE11OrLess && captureMode); |
| 11 |
} |
| 12 |
|
| 13 |
|
| 14 |
function off(el, event, fn) { |
| 15 |
el.removeEventListener(event, fn, !IE11OrLess && captureMode); |
| 16 |
} |
| 17 |
|
| 18 |
function matches(/**HTMLElement*/el, /**String*/selector) { |
| 19 |
if (!selector) return; |
| 20 |
|
| 21 |
selector[0] === '>' && (selector = selector.substring(1)); |
| 22 |
|
| 23 |
if (el) { |
| 24 |
try { |
| 25 |
if (el.matches) { |
| 26 |
return el.matches(selector); |
| 27 |
} else if (el.msMatchesSelector) { |
| 28 |
return el.msMatchesSelector(selector); |
| 29 |
} else if (el.webkitMatchesSelector) { |
| 30 |
return el.webkitMatchesSelector(selector); |
| 31 |
} |
| 32 |
} catch(_) { |
| 33 |
return false; |
| 34 |
} |
| 35 |
} |
| 36 |
|
| 37 |
return false; |
| 38 |
} |
| 39 |
|
| 40 |
function getParentOrHost(el) { |
| 41 |
return (el.host && el !== document && el.host.nodeType) |
| 42 |
? el.host |
| 43 |
: el.parentNode; |
| 44 |
} |
| 45 |
|
| 46 |
function closest(/**HTMLElement*/el, /**String*/selector, /**HTMLElement*/ctx, includeCTX) { |
| 47 |
if (el) { |
| 48 |
ctx = ctx || document; |
| 49 |
|
| 50 |
do { |
| 51 |
if ( |
| 52 |
selector != null && |
| 53 |
( |
| 54 |
selector[0] === '>' ? |
| 55 |
el.parentNode === ctx && matches(el, selector) : |
| 56 |
matches(el, selector) |
| 57 |
) || |
| 58 |
includeCTX && el === ctx |
| 59 |
) { |
| 60 |
return el; |
| 61 |
} |
| 62 |
|
| 63 |
if (el === ctx) break; |
| 64 |
/* jshint boss:true */ |
| 65 |
} while (el = getParentOrHost(el)); |
| 66 |
} |
| 67 |
|
| 68 |
return null; |
| 69 |
} |
| 70 |
|
| 71 |
const R_SPACE = /\s+/g; |
| 72 |
|
| 73 |
function toggleClass(el, name, state) { |
| 74 |
if (el && name) { |
| 75 |
if (el.classList) { |
| 76 |
el.classList[state ? 'add' : 'remove'](name); |
| 77 |
} |
| 78 |
else { |
| 79 |
let className = (' ' + el.className + ' ').replace(R_SPACE, ' ').replace(' ' + name + ' ', ' '); |
| 80 |
el.className = (className + (state ? ' ' + name : '')).replace(R_SPACE, ' '); |
| 81 |
} |
| 82 |
} |
| 83 |
} |
| 84 |
|
| 85 |
|
| 86 |
function css(el, prop, val) { |
| 87 |
let style = el && el.style; |
| 88 |
|
| 89 |
if (style) { |
| 90 |
if (val === void 0) { |
| 91 |
if (document.defaultView && document.defaultView.getComputedStyle) { |
| 92 |
val = document.defaultView.getComputedStyle(el, ''); |
| 93 |
} |
| 94 |
else if (el.currentStyle) { |
| 95 |
val = el.currentStyle; |
| 96 |
} |
| 97 |
|
| 98 |
return prop === void 0 ? val : val[prop]; |
| 99 |
} |
| 100 |
else { |
| 101 |
if (!(prop in style) && prop.indexOf('webkit') === -1) { |
| 102 |
prop = '-webkit-' + prop; |
| 103 |
} |
| 104 |
|
| 105 |
style[prop] = val + (typeof val === 'string' ? '' : 'px'); |
| 106 |
} |
| 107 |
} |
| 108 |
} |
| 109 |
|
| 110 |
function matrix(el, selfOnly) { |
| 111 |
let appliedTransforms = ''; |
| 112 |
if (typeof(el) === 'string') { |
| 113 |
appliedTransforms = el; |
| 114 |
} else { |
| 115 |
do { |
| 116 |
let transform = css(el, 'transform'); |
| 117 |
|
| 118 |
if (transform && transform !== 'none') { |
| 119 |
appliedTransforms = transform + ' ' + appliedTransforms; |
| 120 |
} |
| 121 |
/* jshint boss:true */ |
| 122 |
} while (!selfOnly && (el = el.parentNode)); |
| 123 |
} |
| 124 |
|
| 125 |
const matrixFn = window.DOMMatrix || window.WebKitCSSMatrix || window.CSSMatrix || window.MSCSSMatrix; |
| 126 |
/*jshint -W056 */ |
| 127 |
return matrixFn && (new matrixFn(appliedTransforms)); |
| 128 |
} |
| 129 |
|
| 130 |
|
| 131 |
function find(ctx, tagName, iterator) { |
| 132 |
if (ctx) { |
| 133 |
let list = ctx.getElementsByTagName(tagName), i = 0, n = list.length; |
| 134 |
|
| 135 |
if (iterator) { |
| 136 |
for (; i < n; i++) { |
| 137 |
iterator(list[i], i); |
| 138 |
} |
| 139 |
} |
| 140 |
|
| 141 |
return list; |
| 142 |
} |
| 143 |
|
| 144 |
return []; |
| 145 |
} |
| 146 |
|
| 147 |
|
| 148 |
|
| 149 |
function getWindowScrollingElement() { |
| 150 |
let scrollingElement = document.scrollingElement; |
| 151 |
|
| 152 |
if (scrollingElement) { |
| 153 |
return scrollingElement |
| 154 |
} else { |
| 155 |
return document.documentElement |
| 156 |
} |
| 157 |
} |
| 158 |
|
| 159 |
|
| 160 |
/** |
| 161 |
* Returns the "bounding client rect" of given element |
| 162 |
* @param {HTMLElement} el The element whose boundingClientRect is wanted |
| 163 |
* @param {[Boolean]} relativeToContainingBlock Whether the rect should be relative to the containing block of (including) the container |
| 164 |
* @param {[Boolean]} relativeToNonStaticParent Whether the rect should be relative to the relative parent of (including) the contaienr |
| 165 |
* @param {[Boolean]} undoScale Whether the container's scale() should be undone |
| 166 |
* @param {[HTMLElement]} container The parent the element will be placed in |
| 167 |
* @return {Object} The boundingClientRect of el, with specified adjustments |
| 168 |
*/ |
| 169 |
function getRect(el, relativeToContainingBlock, relativeToNonStaticParent, undoScale, container) { |
| 170 |
if (!el.getBoundingClientRect && el !== window) return; |
| 171 |
|
| 172 |
let elRect, |
| 173 |
top, |
| 174 |
left, |
| 175 |
bottom, |
| 176 |
right, |
| 177 |
height, |
| 178 |
width; |
| 179 |
|
| 180 |
if (el !== window && el.parentNode && el !== getWindowScrollingElement()) { |
| 181 |
elRect = el.getBoundingClientRect(); |
| 182 |
top = elRect.top; |
| 183 |
left = elRect.left; |
| 184 |
bottom = elRect.bottom; |
| 185 |
right = elRect.right; |
| 186 |
height = elRect.height; |
| 187 |
width = elRect.width; |
| 188 |
} else { |
| 189 |
top = 0; |
| 190 |
left = 0; |
| 191 |
bottom = window.innerHeight; |
| 192 |
right = window.innerWidth; |
| 193 |
height = window.innerHeight; |
| 194 |
width = window.innerWidth; |
| 195 |
} |
| 196 |
|
| 197 |
if ((relativeToContainingBlock || relativeToNonStaticParent) && el !== window) { |
| 198 |
// Adjust for translate() |
| 199 |
container = container || el.parentNode; |
| 200 |
|
| 201 |
// solves #1123 (see: https://stackoverflow.com/a/37953806/6088312) |
| 202 |
// Not needed on <= IE11 |
| 203 |
if (!IE11OrLess) { |
| 204 |
do { |
| 205 |
if ( |
| 206 |
container && |
| 207 |
container.getBoundingClientRect && |
| 208 |
( |
| 209 |
css(container, 'transform') !== 'none' || |
| 210 |
relativeToNonStaticParent && |
| 211 |
css(container, 'position') !== 'static' |
| 212 |
) |
| 213 |
) { |
| 214 |
let containerRect = container.getBoundingClientRect(); |
| 215 |
|
| 216 |
// Set relative to edges of padding box of container |
| 217 |
top -= containerRect.top + parseInt(css(container, 'border-top-width')); |
| 218 |
left -= containerRect.left + parseInt(css(container, 'border-left-width')); |
| 219 |
bottom = top + elRect.height; |
| 220 |
right = left + elRect.width; |
| 221 |
|
| 222 |
break; |
| 223 |
} |
| 224 |
/* jshint boss:true */ |
| 225 |
} while (container = container.parentNode); |
| 226 |
} |
| 227 |
} |
| 228 |
|
| 229 |
if (undoScale && el !== window) { |
| 230 |
// Adjust for scale() |
| 231 |
let elMatrix = matrix(container || el), |
| 232 |
scaleX = elMatrix && elMatrix.a, |
| 233 |
scaleY = elMatrix && elMatrix.d; |
| 234 |
|
| 235 |
if (elMatrix) { |
| 236 |
top /= scaleY; |
| 237 |
left /= scaleX; |
| 238 |
|
| 239 |
width /= scaleX; |
| 240 |
height /= scaleY; |
| 241 |
|
| 242 |
bottom = top + height; |
| 243 |
right = left + width; |
| 244 |
} |
| 245 |
} |
| 246 |
|
| 247 |
return { |
| 248 |
top: top, |
| 249 |
left: left, |
| 250 |
bottom: bottom, |
| 251 |
right: right, |
| 252 |
width: width, |
| 253 |
height: height |
| 254 |
}; |
| 255 |
} |
| 256 |
|
| 257 |
/** |
| 258 |
* Returns the content rect of the element (bounding rect minus border and padding) |
| 259 |
* @param {HTMLElement} el |
| 260 |
*/ |
| 261 |
function getContentRect(el) { |
| 262 |
let rect = getRect(el); |
| 263 |
const paddingLeft = parseInt(css(el, 'padding-left')), |
| 264 |
paddingTop = parseInt(css(el, 'padding-top')), |
| 265 |
paddingRight = parseInt(css(el, 'padding-right')), |
| 266 |
paddingBottom = parseInt(css(el, 'padding-bottom')); |
| 267 |
rect.top += paddingTop + parseInt(css(el, 'border-top-width')); |
| 268 |
rect.left += paddingLeft + parseInt(css(el, 'border-left-width')); |
| 269 |
// Client Width/Height includes padding only |
| 270 |
rect.width = el.clientWidth - paddingLeft - paddingRight; |
| 271 |
rect.height = el.clientHeight - paddingTop - paddingBottom; |
| 272 |
rect.bottom = rect.top + rect.height; |
| 273 |
rect.right = rect.left + rect.width; |
| 274 |
return rect; |
| 275 |
} |
| 276 |
|
| 277 |
/** |
| 278 |
* Checks if a side of an element is scrolled past a side of its parents |
| 279 |
* @param {HTMLElement} el The element who's side being scrolled out of view is in question |
| 280 |
* @param {String} elSide Side of the element in question ('top', 'left', 'right', 'bottom') |
| 281 |
* @param {String} parentSide Side of the parent in question ('top', 'left', 'right', 'bottom') |
| 282 |
* @return {HTMLElement} The parent scroll element that the el's side is scrolled past, or null if there is no such element |
| 283 |
*/ |
| 284 |
function isScrolledPast(el, elSide, parentSide) { |
| 285 |
let parent = getParentAutoScrollElement(el, true), |
| 286 |
elSideVal = getRect(el)[elSide]; |
| 287 |
|
| 288 |
/* jshint boss:true */ |
| 289 |
while (parent) { |
| 290 |
let parentSideVal = getRect(parent)[parentSide], |
| 291 |
visible; |
| 292 |
|
| 293 |
if (parentSide === 'top' || parentSide === 'left') { |
| 294 |
visible = elSideVal >= parentSideVal; |
| 295 |
} else { |
| 296 |
visible = elSideVal <= parentSideVal; |
| 297 |
} |
| 298 |
|
| 299 |
if (!visible) return parent; |
| 300 |
|
| 301 |
if (parent === getWindowScrollingElement()) break; |
| 302 |
|
| 303 |
parent = getParentAutoScrollElement(parent, false); |
| 304 |
} |
| 305 |
|
| 306 |
return false; |
| 307 |
} |
| 308 |
|
| 309 |
|
| 310 |
|
| 311 |
/** |
| 312 |
* Gets nth child of el, ignoring hidden children, sortable's elements (does not ignore clone if it's visible) |
| 313 |
* and non-draggable elements |
| 314 |
* @param {HTMLElement} el The parent element |
| 315 |
* @param {Number} childNum The index of the child |
| 316 |
* @param {Object} options Parent Sortable's options |
| 317 |
* @return {HTMLElement} The child at index childNum, or null if not found |
| 318 |
*/ |
| 319 |
function getChild(el, childNum, options, includeDragEl) { |
| 320 |
let currentChild = 0, |
| 321 |
i = 0, |
| 322 |
children = el.children; |
| 323 |
|
| 324 |
while (i < children.length) { |
| 325 |
if ( |
| 326 |
children[i].style.display !== 'none' && |
| 327 |
children[i] !== Sortable.ghost && |
| 328 |
(includeDragEl || children[i] !== Sortable.dragged) && |
| 329 |
closest(children[i], options.draggable, el, false) |
| 330 |
) { |
| 331 |
if (currentChild === childNum) { |
| 332 |
return children[i]; |
| 333 |
} |
| 334 |
currentChild++; |
| 335 |
} |
| 336 |
|
| 337 |
i++; |
| 338 |
} |
| 339 |
return null; |
| 340 |
} |
| 341 |
|
| 342 |
/** |
| 343 |
* Gets the last child in the el, ignoring ghostEl or invisible elements (clones) |
| 344 |
* @param {HTMLElement} el Parent element |
| 345 |
* @param {selector} selector Any other elements that should be ignored |
| 346 |
* @return {HTMLElement} The last child, ignoring ghostEl |
| 347 |
*/ |
| 348 |
function lastChild(el, selector) { |
| 349 |
let last = el.lastElementChild; |
| 350 |
|
| 351 |
while ( |
| 352 |
last && |
| 353 |
( |
| 354 |
last === Sortable.ghost || |
| 355 |
css(last, 'display') === 'none' || |
| 356 |
selector && !matches(last, selector) |
| 357 |
) |
| 358 |
) { |
| 359 |
last = last.previousElementSibling; |
| 360 |
} |
| 361 |
|
| 362 |
return last || null; |
| 363 |
} |
| 364 |
|
| 365 |
|
| 366 |
/** |
| 367 |
* Returns the index of an element within its parent for a selected set of |
| 368 |
* elements |
| 369 |
* @param {HTMLElement} el |
| 370 |
* @param {selector} selector |
| 371 |
* @return {number} |
| 372 |
*/ |
| 373 |
function index(el, selector) { |
| 374 |
let index = 0; |
| 375 |
|
| 376 |
if (!el || !el.parentNode) { |
| 377 |
return -1; |
| 378 |
} |
| 379 |
|
| 380 |
/* jshint boss:true */ |
| 381 |
while (el = el.previousElementSibling) { |
| 382 |
if ((el.nodeName.toUpperCase() !== 'TEMPLATE') && el !== Sortable.clone && (!selector || matches(el, selector))) { |
| 383 |
index++; |
| 384 |
} |
| 385 |
} |
| 386 |
|
| 387 |
return index; |
| 388 |
} |
| 389 |
|
| 390 |
/** |
| 391 |
* Returns the scroll offset of the given element, added with all the scroll offsets of parent elements. |
| 392 |
* The value is returned in real pixels. |
| 393 |
* @param {HTMLElement} el |
| 394 |
* @return {Array} Offsets in the format of [left, top] |
| 395 |
*/ |
| 396 |
function getRelativeScrollOffset(el) { |
| 397 |
let offsetLeft = 0, |
| 398 |
offsetTop = 0, |
| 399 |
winScroller = getWindowScrollingElement(); |
| 400 |
|
| 401 |
if (el) { |
| 402 |
do { |
| 403 |
let elMatrix = matrix(el), |
| 404 |
scaleX = elMatrix.a, |
| 405 |
scaleY = elMatrix.d; |
| 406 |
|
| 407 |
offsetLeft += el.scrollLeft * scaleX; |
| 408 |
offsetTop += el.scrollTop * scaleY; |
| 409 |
} while (el !== winScroller && (el = el.parentNode)); |
| 410 |
} |
| 411 |
|
| 412 |
return [offsetLeft, offsetTop]; |
| 413 |
} |
| 414 |
|
| 415 |
/** |
| 416 |
* Returns the index of the object within the given array |
| 417 |
* @param {Array} arr Array that may or may not hold the object |
| 418 |
* @param {Object} obj An object that has a key-value pair unique to and identical to a key-value pair in the object you want to find |
| 419 |
* @return {Number} The index of the object in the array, or -1 |
| 420 |
*/ |
| 421 |
function indexOfObject(arr, obj) { |
| 422 |
for (let i in arr) { |
| 423 |
if (!arr.hasOwnProperty(i)) continue; |
| 424 |
for (let key in obj) { |
| 425 |
if (obj.hasOwnProperty(key) && obj[key] === arr[i][key]) return Number(i); |
| 426 |
} |
| 427 |
} |
| 428 |
return -1; |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
function getParentAutoScrollElement(el, includeSelf) { |
| 433 |
// skip to window |
| 434 |
if (!el || !el.getBoundingClientRect) return getWindowScrollingElement(); |
| 435 |
|
| 436 |
let elem = el; |
| 437 |
let gotSelf = false; |
| 438 |
do { |
| 439 |
// we don't need to get elem css if it isn't even overflowing in the first place (performance) |
| 440 |
if (elem.clientWidth < elem.scrollWidth || elem.clientHeight < elem.scrollHeight) { |
| 441 |
let elemCSS = css(elem); |
| 442 |
if ( |
| 443 |
elem.clientWidth < elem.scrollWidth && (elemCSS.overflowX == 'auto' || elemCSS.overflowX == 'scroll') || |
| 444 |
elem.clientHeight < elem.scrollHeight && (elemCSS.overflowY == 'auto' || elemCSS.overflowY == 'scroll') |
| 445 |
) { |
| 446 |
if (!elem.getBoundingClientRect || elem === document.body) return getWindowScrollingElement(); |
| 447 |
|
| 448 |
if (gotSelf || includeSelf) return elem; |
| 449 |
gotSelf = true; |
| 450 |
} |
| 451 |
} |
| 452 |
/* jshint boss:true */ |
| 453 |
} while (elem = elem.parentNode); |
| 454 |
|
| 455 |
return getWindowScrollingElement(); |
| 456 |
} |
| 457 |
|
| 458 |
function extend(dst, src) { |
| 459 |
if (dst && src) { |
| 460 |
for (let key in src) { |
| 461 |
if (src.hasOwnProperty(key)) { |
| 462 |
dst[key] = src[key]; |
| 463 |
} |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
return dst; |
| 468 |
} |
| 469 |
|
| 470 |
|
| 471 |
function isRectEqual(rect1, rect2) { |
| 472 |
return Math.round(rect1.top) === Math.round(rect2.top) && |
| 473 |
Math.round(rect1.left) === Math.round(rect2.left) && |
| 474 |
Math.round(rect1.height) === Math.round(rect2.height) && |
| 475 |
Math.round(rect1.width) === Math.round(rect2.width); |
| 476 |
} |
| 477 |
|
| 478 |
|
| 479 |
let _throttleTimeout; |
| 480 |
function throttle(callback, ms) { |
| 481 |
return function () { |
| 482 |
if (!_throttleTimeout) { |
| 483 |
let args = arguments, |
| 484 |
_this = this; |
| 485 |
|
| 486 |
if (args.length === 1) { |
| 487 |
callback.call(_this, args[0]); |
| 488 |
} else { |
| 489 |
callback.apply(_this, args); |
| 490 |
} |
| 491 |
|
| 492 |
_throttleTimeout = setTimeout(function () { |
| 493 |
_throttleTimeout = void 0; |
| 494 |
}, ms); |
| 495 |
} |
| 496 |
}; |
| 497 |
} |
| 498 |
|
| 499 |
|
| 500 |
function cancelThrottle() { |
| 501 |
clearTimeout(_throttleTimeout); |
| 502 |
_throttleTimeout = void 0; |
| 503 |
} |
| 504 |
|
| 505 |
|
| 506 |
function scrollBy(el, x, y) { |
| 507 |
el.scrollLeft += x; |
| 508 |
el.scrollTop += y; |
| 509 |
} |
| 510 |
|
| 511 |
|
| 512 |
function clone(el) { |
| 513 |
let Polymer = window.Polymer; |
| 514 |
let $ = window.jQuery || window.Zepto; |
| 515 |
|
| 516 |
if (Polymer && Polymer.dom) { |
| 517 |
return Polymer.dom(el).cloneNode(true); |
| 518 |
} |
| 519 |
else if ($) { |
| 520 |
return $(el).clone(true)[0]; |
| 521 |
} |
| 522 |
else { |
| 523 |
return el.cloneNode(true); |
| 524 |
} |
| 525 |
} |
| 526 |
|
| 527 |
|
| 528 |
function setRect(el, rect) { |
| 529 |
css(el, 'position', 'absolute'); |
| 530 |
css(el, 'top', rect.top); |
| 531 |
css(el, 'left', rect.left); |
| 532 |
css(el, 'width', rect.width); |
| 533 |
css(el, 'height', rect.height); |
| 534 |
} |
| 535 |
|
| 536 |
function unsetRect(el) { |
| 537 |
css(el, 'position', ''); |
| 538 |
css(el, 'top', ''); |
| 539 |
css(el, 'left', ''); |
| 540 |
css(el, 'width', ''); |
| 541 |
css(el, 'height', ''); |
| 542 |
} |
| 543 |
|
| 544 |
function getChildContainingRectFromElement(container, options, ghostEl) { |
| 545 |
const rect = {}; |
| 546 |
|
| 547 |
Array.from(container.children).forEach(child => { |
| 548 |
if (!closest(child, options.draggable, container, false) || child.animated || child === ghostEl) return; |
| 549 |
const childRect = getRect(child); |
| 550 |
rect.left = Math.min(rect.left ?? Infinity, childRect.left); |
| 551 |
rect.top = Math.min(rect.top ?? Infinity, childRect.top); |
| 552 |
rect.right = Math.max(rect.right ?? -Infinity, childRect.right); |
| 553 |
rect.bottom = Math.max(rect.bottom ?? -Infinity, childRect.bottom); |
| 554 |
}); |
| 555 |
rect.width = rect.right - rect.left; |
| 556 |
rect.height = rect.bottom - rect.top; |
| 557 |
rect.x = rect.left; |
| 558 |
rect.y = rect.top; |
| 559 |
return rect; |
| 560 |
} |
| 561 |
|
| 562 |
const expando = 'Sortable' + (new Date).getTime(); |
| 563 |
|
| 564 |
|
| 565 |
export { |
| 566 |
on, |
| 567 |
off, |
| 568 |
matches, |
| 569 |
getParentOrHost, |
| 570 |
closest, |
| 571 |
toggleClass, |
| 572 |
css, |
| 573 |
matrix, |
| 574 |
find, |
| 575 |
getWindowScrollingElement, |
| 576 |
getRect, |
| 577 |
isScrolledPast, |
| 578 |
getChild, |
| 579 |
lastChild, |
| 580 |
index, |
| 581 |
getRelativeScrollOffset, |
| 582 |
indexOfObject, |
| 583 |
getParentAutoScrollElement, |
| 584 |
extend, |
| 585 |
isRectEqual, |
| 586 |
throttle, |
| 587 |
cancelThrottle, |
| 588 |
scrollBy, |
| 589 |
clone, |
| 590 |
setRect, |
| 591 |
unsetRect, |
| 592 |
getContentRect, |
| 593 |
getChildContainingRectFromElement, |
| 594 |
expando |
| 595 |
}; |
| 596 |
|
