renderer_base.js 24 KB

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  1. /**
  2. * DevExtreme (core/renderer_base.js)
  3. * Version: 19.1.16
  4. * Build date: Tue Oct 18 2022
  5. *
  6. * Copyright (c) 2012 - 2022 Developer Express Inc. ALL RIGHTS RESERVED
  7. * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
  8. */
  9. "use strict";
  10. var dataUtils = require("./element_data");
  11. var domAdapter = require("./dom_adapter");
  12. var windowUtils = require("./utils/window");
  13. var window = windowUtils.getWindow();
  14. var typeUtils = require("./utils/type");
  15. var styleUtils = require("./utils/style");
  16. var sizeUtils = require("./utils/size");
  17. var htmlParser = require("./utils/html_parser");
  18. var renderer = function(selector, context) {
  19. return new initRender(selector, context)
  20. };
  21. var initRender = function(selector, context) {
  22. if (!selector) {
  23. this.length = 0;
  24. return this
  25. }
  26. if ("string" === typeof selector) {
  27. if ("body" === selector) {
  28. this[0] = context ? context.body : domAdapter.getBody();
  29. this.length = 1;
  30. return this
  31. }
  32. context = context || domAdapter.getDocument();
  33. if ("<" === selector[0]) {
  34. this[0] = domAdapter.createElement(selector.slice(1, -1), context);
  35. this.length = 1;
  36. return this
  37. } [].push.apply(this, domAdapter.querySelectorAll(context, selector));
  38. return this
  39. } else {
  40. if (domAdapter.isNode(selector) || typeUtils.isWindow(selector)) {
  41. this[0] = selector;
  42. this.length = 1;
  43. return this
  44. } else {
  45. if (Array.isArray(selector)) {
  46. [].push.apply(this, selector);
  47. return this
  48. }
  49. }
  50. }
  51. return renderer(selector.toArray ? selector.toArray() : [selector])
  52. };
  53. renderer.fn = {
  54. dxRenderer: true
  55. };
  56. initRender.prototype = renderer.fn;
  57. var repeatMethod = function(methodName, args) {
  58. for (var i = 0; i < this.length; i++) {
  59. var item = renderer(this[i]);
  60. item[methodName].apply(item, args)
  61. }
  62. return this
  63. };
  64. var setAttributeValue = function(element, attrName, value) {
  65. if (void 0 !== value && null !== value) {
  66. domAdapter.setAttribute(element, attrName, value)
  67. } else {
  68. domAdapter.removeAttribute(element, attrName)
  69. }
  70. };
  71. initRender.prototype.show = function() {
  72. return this.toggle(true)
  73. };
  74. initRender.prototype.hide = function() {
  75. return this.toggle(false)
  76. };
  77. initRender.prototype.toggle = function(value) {
  78. if (this[0]) {
  79. this.toggleClass("dx-state-invisible", !value)
  80. }
  81. return this
  82. };
  83. initRender.prototype.attr = function(attrName, value) {
  84. if (this.length > 1 && arguments.length > 1) {
  85. return repeatMethod.call(this, "attr", arguments)
  86. }
  87. if (!this[0]) {
  88. if (typeUtils.isObject(attrName) || void 0 !== value) {
  89. return this
  90. } else {
  91. return
  92. }
  93. }
  94. if (!this[0].getAttribute) {
  95. return this.prop(attrName, value)
  96. }
  97. if ("string" === typeof attrName && 1 === arguments.length) {
  98. var result = this[0].getAttribute(attrName);
  99. return null == result ? void 0 : result
  100. } else {
  101. if (typeUtils.isPlainObject(attrName)) {
  102. for (var key in attrName) {
  103. this.attr(key, attrName[key])
  104. }
  105. } else {
  106. setAttributeValue(this[0], attrName, value)
  107. }
  108. }
  109. return this
  110. };
  111. initRender.prototype.removeAttr = function(attrName) {
  112. this[0] && domAdapter.removeAttribute(this[0], attrName);
  113. return this
  114. };
  115. initRender.prototype.prop = function(propName, value) {
  116. if (!this[0]) {
  117. return this
  118. }
  119. if ("string" === typeof propName && 1 === arguments.length) {
  120. return this[0][propName]
  121. } else {
  122. if (typeUtils.isPlainObject(propName)) {
  123. for (var key in propName) {
  124. this.prop(key, propName[key])
  125. }
  126. } else {
  127. domAdapter.setProperty(this[0], propName, value)
  128. }
  129. }
  130. return this
  131. };
  132. initRender.prototype.addClass = function(className) {
  133. return this.toggleClass(className, true)
  134. };
  135. initRender.prototype.removeClass = function(className) {
  136. return this.toggleClass(className, false)
  137. };
  138. initRender.prototype.hasClass = function(className) {
  139. if (!this[0] || void 0 === this[0].className) {
  140. return false
  141. }
  142. var classNames = className.split(" ");
  143. for (var i = 0; i < classNames.length; i++) {
  144. if (this[0].classList) {
  145. if (this[0].classList.contains(classNames[i])) {
  146. return true
  147. }
  148. } else {
  149. var _className = typeUtils.isString(this[0].className) ? this[0].className : domAdapter.getAttribute(this[0], "class");
  150. if ((_className || "").split(" ").indexOf(classNames[i]) >= 0) {
  151. return true
  152. }
  153. }
  154. }
  155. return false
  156. };
  157. initRender.prototype.toggleClass = function(className, value) {
  158. if (this.length > 1) {
  159. return repeatMethod.call(this, "toggleClass", arguments)
  160. }
  161. if (!this[0] || !className) {
  162. return this
  163. }
  164. value = void 0 === value ? !this.hasClass(className) : value;
  165. var classNames = className.split(" ");
  166. for (var i = 0; i < classNames.length; i++) {
  167. domAdapter.setClass(this[0], classNames[i], value)
  168. }
  169. return this
  170. };
  171. ["width", "height", "outerWidth", "outerHeight", "innerWidth", "innerHeight"].forEach(function(methodName) {
  172. var partialName = methodName.toLowerCase().indexOf("width") >= 0 ? "Width" : "Height";
  173. var propName = partialName.toLowerCase();
  174. var isOuter = 0 === methodName.indexOf("outer");
  175. var isInner = 0 === methodName.indexOf("inner");
  176. initRender.prototype[methodName] = function(value) {
  177. if (this.length > 1 && arguments.length > 0) {
  178. return repeatMethod.call(this, methodName, arguments)
  179. }
  180. var element = this[0];
  181. if (!element) {
  182. return
  183. }
  184. if (typeUtils.isWindow(element)) {
  185. return isOuter ? element["inner" + partialName] : domAdapter.getDocumentElement()["client" + partialName]
  186. }
  187. if (domAdapter.isDocument(element)) {
  188. var documentElement = domAdapter.getDocumentElement();
  189. var body = domAdapter.getBody();
  190. return Math.max(body["scroll" + partialName], body["offset" + partialName], documentElement["scroll" + partialName], documentElement["offset" + partialName], documentElement["client" + partialName])
  191. }
  192. if (0 === arguments.length || "boolean" === typeof value) {
  193. var include = {
  194. paddings: isInner || isOuter,
  195. borders: isOuter,
  196. margins: value
  197. };
  198. return sizeUtils.getSize(element, propName, include)
  199. }
  200. if (void 0 === value || null === value) {
  201. return this
  202. }
  203. if (typeUtils.isNumeric(value)) {
  204. var elementStyles = window.getComputedStyle(element);
  205. var sizeAdjustment = sizeUtils.getElementBoxParams(propName, elementStyles);
  206. var isBorderBox = "border-box" === elementStyles.boxSizing;
  207. value = Number(value);
  208. if (isOuter) {
  209. value -= isBorderBox ? 0 : sizeAdjustment.border + sizeAdjustment.padding
  210. } else {
  211. if (isInner) {
  212. value += isBorderBox ? sizeAdjustment.border : -sizeAdjustment.padding
  213. } else {
  214. if (isBorderBox) {
  215. value += sizeAdjustment.border + sizeAdjustment.padding
  216. }
  217. }
  218. }
  219. }
  220. value += typeUtils.isNumeric(value) ? "px" : "";
  221. domAdapter.setStyle(element, propName, value);
  222. return this
  223. }
  224. });
  225. initRender.prototype.html = function(value) {
  226. if (!arguments.length) {
  227. return this[0].innerHTML
  228. }
  229. this.empty();
  230. if ("string" === typeof value && !htmlParser.isTablePart(value) || "number" === typeof value) {
  231. this[0].innerHTML = value;
  232. return this
  233. }
  234. return this.append(htmlParser.parseHTML(value))
  235. };
  236. var appendElements = function(element, nextSibling) {
  237. if (!this[0] || !element) {
  238. return
  239. }
  240. if ("string" === typeof element) {
  241. element = htmlParser.parseHTML(element)
  242. } else {
  243. if (element.nodeType) {
  244. element = [element]
  245. } else {
  246. if (typeUtils.isNumeric(element)) {
  247. element = [domAdapter.createTextNode(element)]
  248. }
  249. }
  250. }
  251. for (var i = 0; i < element.length; i++) {
  252. var item = element[i];
  253. var container = this[0];
  254. var wrapTR = "TABLE" === container.tagName && "TR" === item.tagName;
  255. if (wrapTR && container.tBodies && container.tBodies.length) {
  256. container = container.tBodies[0]
  257. }
  258. domAdapter.insertElement(container, item.nodeType ? item : item[0], nextSibling)
  259. }
  260. };
  261. var setCss = function(name, value) {
  262. if (!this[0] || !this[0].style) {
  263. return
  264. }
  265. if (null === value || "number" === typeof value && isNaN(value)) {
  266. return
  267. }
  268. name = styleUtils.styleProp(name);
  269. for (var i = 0; i < this.length; i++) {
  270. this[i].style[name] = styleUtils.normalizeStyleProp(name, value)
  271. }
  272. };
  273. initRender.prototype.css = function(name, value) {
  274. if (typeUtils.isString(name)) {
  275. if (2 === arguments.length) {
  276. setCss.call(this, name, value)
  277. } else {
  278. if (!this[0]) {
  279. return
  280. }
  281. name = styleUtils.styleProp(name);
  282. var result = window.getComputedStyle(this[0])[name] || this[0].style[name];
  283. return typeUtils.isNumeric(result) ? result.toString() : result
  284. }
  285. } else {
  286. if (typeUtils.isPlainObject(name)) {
  287. for (var key in name) {
  288. setCss.call(this, key, name[key])
  289. }
  290. }
  291. }
  292. return this
  293. };
  294. initRender.prototype.prepend = function(element) {
  295. if (arguments.length > 1) {
  296. for (var i = 0; i < arguments.length; i++) {
  297. this.prepend(arguments[i])
  298. }
  299. return this
  300. }
  301. appendElements.apply(this, [element, this[0].firstChild]);
  302. return this
  303. };
  304. initRender.prototype.append = function(element) {
  305. if (arguments.length > 1) {
  306. for (var i = 0; i < arguments.length; i++) {
  307. this.append(arguments[i])
  308. }
  309. return this
  310. }
  311. appendElements.apply(this, [element]);
  312. return this
  313. };
  314. initRender.prototype.prependTo = function(element) {
  315. if (this.length > 1) {
  316. for (var i = this.length - 1; i >= 0; i--) {
  317. renderer(this[i]).prependTo(element)
  318. }
  319. return this
  320. }
  321. element = renderer(element);
  322. if (element[0]) {
  323. domAdapter.insertElement(element[0], this[0], element[0].firstChild)
  324. }
  325. return this
  326. };
  327. initRender.prototype.appendTo = function(element) {
  328. if (this.length > 1) {
  329. return repeatMethod.call(this, "appendTo", arguments)
  330. }
  331. domAdapter.insertElement(renderer(element)[0], this[0]);
  332. return this
  333. };
  334. initRender.prototype.insertBefore = function(element) {
  335. if (element && element[0]) {
  336. domAdapter.insertElement(element[0].parentNode, this[0], element[0])
  337. }
  338. return this
  339. };
  340. initRender.prototype.insertAfter = function(element) {
  341. if (element && element[0]) {
  342. domAdapter.insertElement(element[0].parentNode, this[0], element[0].nextSibling)
  343. }
  344. return this
  345. };
  346. initRender.prototype.before = function(element) {
  347. if (this[0]) {
  348. domAdapter.insertElement(this[0].parentNode, element[0], this[0])
  349. }
  350. return this
  351. };
  352. initRender.prototype.after = function(element) {
  353. if (this[0]) {
  354. domAdapter.insertElement(this[0].parentNode, element[0], this[0].nextSibling)
  355. }
  356. return this
  357. };
  358. initRender.prototype.wrap = function(wrapper) {
  359. if (this[0]) {
  360. var wrap = renderer(wrapper);
  361. wrap.insertBefore(this);
  362. wrap.append(this)
  363. }
  364. return this
  365. };
  366. initRender.prototype.wrapInner = function(wrapper) {
  367. var contents = this.contents();
  368. if (contents.length) {
  369. contents.wrap(wrapper)
  370. } else {
  371. this.append(wrapper)
  372. }
  373. return this
  374. };
  375. initRender.prototype.replaceWith = function(element) {
  376. if (!(element && element[0])) {
  377. return
  378. }
  379. if (element.is(this)) {
  380. return this
  381. }
  382. element.insertBefore(this);
  383. this.remove();
  384. return element
  385. };
  386. initRender.prototype.remove = function() {
  387. if (this.length > 1) {
  388. return repeatMethod.call(this, "remove", arguments)
  389. }
  390. dataUtils.cleanDataRecursive(this[0], true);
  391. domAdapter.removeElement(this[0]);
  392. return this
  393. };
  394. initRender.prototype.detach = function() {
  395. if (this.length > 1) {
  396. return repeatMethod.call(this, "detach", arguments)
  397. }
  398. domAdapter.removeElement(this[0]);
  399. return this
  400. };
  401. initRender.prototype.empty = function() {
  402. if (this.length > 1) {
  403. return repeatMethod.call(this, "empty", arguments)
  404. }
  405. dataUtils.cleanDataRecursive(this[0]);
  406. domAdapter.setText(this[0], "");
  407. return this
  408. };
  409. initRender.prototype.clone = function() {
  410. var result = [];
  411. for (var i = 0; i < this.length; i++) {
  412. result.push(this[i].cloneNode(true))
  413. }
  414. return renderer(result)
  415. };
  416. initRender.prototype.text = function(value) {
  417. if (!arguments.length) {
  418. var result = "";
  419. for (var i = 0; i < this.length; i++) {
  420. result += this[i] && this[i].textContent || ""
  421. }
  422. return result
  423. }
  424. var text = typeUtils.isFunction(value) ? value() : value;
  425. dataUtils.cleanDataRecursive(this[0], false);
  426. domAdapter.setText(this[0], typeUtils.isDefined(text) ? text : "");
  427. return this
  428. };
  429. initRender.prototype.val = function(value) {
  430. if (1 === arguments.length) {
  431. return this.prop("value", typeUtils.isDefined(value) ? value : "")
  432. }
  433. return this.prop("value")
  434. };
  435. initRender.prototype.contents = function() {
  436. if (!this[0]) {
  437. return renderer()
  438. }
  439. var result = [];
  440. result.push.apply(result, this[0].childNodes);
  441. return renderer(result)
  442. };
  443. initRender.prototype.find = function(selector) {
  444. var result = renderer();
  445. if (!selector) {
  446. return result
  447. }
  448. var nodes = [];
  449. var i;
  450. if ("string" === typeof selector) {
  451. selector = selector.trim();
  452. for (i = 0; i < this.length; i++) {
  453. var element = this[i];
  454. if (domAdapter.isElementNode(element)) {
  455. var elementId = element.getAttribute("id");
  456. var queryId = elementId || "dx-query-children";
  457. if (!elementId) {
  458. setAttributeValue(element, "id", queryId)
  459. }
  460. queryId = "[id='" + queryId + "'] ";
  461. var querySelector = queryId + selector.replace(/([^\\])(,)/g, "$1, " + queryId);
  462. nodes.push.apply(nodes, domAdapter.querySelectorAll(element, querySelector));
  463. setAttributeValue(element, "id", elementId)
  464. } else {
  465. if (domAdapter.isDocument(element)) {
  466. nodes.push.apply(nodes, domAdapter.querySelectorAll(element, selector))
  467. }
  468. }
  469. }
  470. } else {
  471. for (i = 0; i < this.length; i++) {
  472. selector = domAdapter.isNode(selector) ? selector : selector[0];
  473. if (this[i] !== selector && this[i].contains(selector)) {
  474. nodes.push(selector)
  475. }
  476. }
  477. }
  478. return result.add(nodes)
  479. };
  480. var isVisible = function(_, element) {
  481. if (!element.nodeType) {
  482. return true
  483. }
  484. return !!(element.offsetWidth || element.offsetHeight || element.getClientRects().length)
  485. };
  486. initRender.prototype.filter = function(selector) {
  487. if (!selector) {
  488. return renderer()
  489. }
  490. if (":visible" === selector) {
  491. return this.filter(isVisible)
  492. } else {
  493. if (":hidden" === selector) {
  494. return this.filter(function(_, element) {
  495. return !isVisible(_, element)
  496. })
  497. }
  498. }
  499. var result = [];
  500. for (var i = 0; i < this.length; i++) {
  501. var item = this[i];
  502. if (domAdapter.isElementNode(item) && "string" === typeUtils.type(selector)) {
  503. domAdapter.elementMatches(item, selector) && result.push(item)
  504. } else {
  505. if (domAdapter.isNode(selector) || typeUtils.isWindow(selector)) {
  506. selector === item && result.push(item)
  507. } else {
  508. if (typeUtils.isFunction(selector)) {
  509. selector.call(item, i, item) && result.push(item)
  510. } else {
  511. for (var j = 0; j < selector.length; j++) {
  512. selector[j] === item && result.push(item)
  513. }
  514. }
  515. }
  516. }
  517. }
  518. return renderer(result)
  519. };
  520. initRender.prototype.not = function(selector) {
  521. var result = [];
  522. var nodes = this.filter(selector).toArray();
  523. for (var i = 0; i < this.length; i++) {
  524. if (nodes.indexOf(this[i]) === -1) {
  525. result.push(this[i])
  526. }
  527. }
  528. return renderer(result)
  529. };
  530. initRender.prototype.is = function(selector) {
  531. return !!this.filter(selector).length
  532. };
  533. initRender.prototype.children = function(selector) {
  534. var result = [];
  535. for (var i = 0; i < this.length; i++) {
  536. var nodes = this[i] ? this[i].childNodes : [];
  537. for (var j = 0; j < nodes.length; j++) {
  538. if (domAdapter.isElementNode(nodes[j])) {
  539. result.push(nodes[j])
  540. }
  541. }
  542. }
  543. result = renderer(result);
  544. return selector ? result.filter(selector) : result
  545. };
  546. initRender.prototype.siblings = function() {
  547. var element = this[0];
  548. if (!element || !element.parentNode) {
  549. return renderer()
  550. }
  551. var result = [];
  552. var parentChildNodes = element.parentNode.childNodes || [];
  553. for (var i = 0; i < parentChildNodes.length; i++) {
  554. var node = parentChildNodes[i];
  555. if (domAdapter.isElementNode(node) && node !== element) {
  556. result.push(node)
  557. }
  558. }
  559. return renderer(result)
  560. };
  561. initRender.prototype.each = function(callback) {
  562. for (var i = 0; i < this.length; i++) {
  563. if (false === callback.call(this[i], i, this[i])) {
  564. break
  565. }
  566. }
  567. };
  568. initRender.prototype.index = function(element) {
  569. if (!element) {
  570. return this.parent().children().index(this)
  571. }
  572. element = renderer(element);
  573. return this.toArray().indexOf(element[0])
  574. };
  575. initRender.prototype.get = function(index) {
  576. return this[index < 0 ? this.length + index : index]
  577. };
  578. initRender.prototype.eq = function(index) {
  579. index = index < 0 ? this.length + index : index;
  580. return renderer(this[index])
  581. };
  582. initRender.prototype.first = function() {
  583. return this.eq(0)
  584. };
  585. initRender.prototype.last = function() {
  586. return this.eq(-1)
  587. };
  588. initRender.prototype.parent = function(selector) {
  589. if (!this[0]) {
  590. return renderer()
  591. }
  592. var result = renderer(this[0].parentNode);
  593. return !selector || result.is(selector) ? result : renderer()
  594. };
  595. initRender.prototype.parents = function(selector) {
  596. var result = [];
  597. var parent = this.parent();
  598. while (parent && parent[0] && !domAdapter.isDocument(parent[0])) {
  599. if (domAdapter.isElementNode(parent[0])) {
  600. if (!selector || selector && parent.is(selector)) {
  601. result.push(parent.get(0))
  602. }
  603. }
  604. parent = parent.parent()
  605. }
  606. return renderer(result)
  607. };
  608. initRender.prototype.closest = function(selector) {
  609. if (this.is(selector)) {
  610. return this
  611. }
  612. var parent = this.parent();
  613. while (parent && parent.length) {
  614. if (parent.is(selector)) {
  615. return parent
  616. }
  617. parent = parent.parent()
  618. }
  619. return renderer()
  620. };
  621. initRender.prototype.next = function(selector) {
  622. if (!this[0]) {
  623. return renderer()
  624. }
  625. var next = renderer(this[0].nextSibling);
  626. if (!arguments.length) {
  627. return next
  628. }
  629. while (next && next.length) {
  630. if (next.is(selector)) {
  631. return next
  632. }
  633. next = next.next()
  634. }
  635. return renderer()
  636. };
  637. initRender.prototype.prev = function() {
  638. if (!this[0]) {
  639. return renderer()
  640. }
  641. return renderer(this[0].previousSibling)
  642. };
  643. initRender.prototype.add = function(selector) {
  644. var targets = renderer(selector);
  645. var result = this.toArray();
  646. for (var i = 0; i < targets.length; i++) {
  647. var target = targets[i];
  648. if (result.indexOf(target) === -1) {
  649. result.push(target)
  650. }
  651. }
  652. return renderer(result)
  653. };
  654. var emptyArray = [];
  655. initRender.prototype.splice = function() {
  656. return renderer(emptyArray.splice.apply(this, arguments))
  657. };
  658. initRender.prototype.slice = function() {
  659. return renderer(emptyArray.slice.apply(this, arguments))
  660. };
  661. initRender.prototype.toArray = function() {
  662. return emptyArray.slice.call(this)
  663. };
  664. var getWindowByElement = function(element) {
  665. return typeUtils.isWindow(element) ? element : element.defaultView
  666. };
  667. initRender.prototype.offset = function() {
  668. if (!this[0]) {
  669. return
  670. }
  671. if (!this[0].getClientRects().length) {
  672. return {
  673. top: 0,
  674. left: 0
  675. }
  676. }
  677. var rect = this[0].getBoundingClientRect();
  678. var win = getWindowByElement(this[0].ownerDocument);
  679. var docElem = this[0].ownerDocument.documentElement;
  680. return {
  681. top: rect.top + win.pageYOffset - docElem.clientTop,
  682. left: rect.left + win.pageXOffset - docElem.clientLeft
  683. }
  684. };
  685. initRender.prototype.offsetParent = function() {
  686. if (!this[0]) {
  687. return renderer()
  688. }
  689. var offsetParent = renderer(this[0].offsetParent);
  690. while (offsetParent[0] && "static" === offsetParent.css("position")) {
  691. offsetParent = renderer(offsetParent[0].offsetParent)
  692. }
  693. offsetParent = offsetParent[0] ? offsetParent : renderer(domAdapter.getDocumentElement());
  694. return offsetParent
  695. };
  696. initRender.prototype.position = function() {
  697. if (!this[0]) {
  698. return
  699. }
  700. var offset;
  701. var marginTop = parseFloat(this.css("marginTop"));
  702. var marginLeft = parseFloat(this.css("marginLeft"));
  703. if ("fixed" === this.css("position")) {
  704. offset = this[0].getBoundingClientRect();
  705. return {
  706. top: offset.top - marginTop,
  707. left: offset.left - marginLeft
  708. }
  709. }
  710. offset = this.offset();
  711. var offsetParent = this.offsetParent();
  712. var parentOffset = {
  713. top: 0,
  714. left: 0
  715. };
  716. if ("HTML" !== offsetParent[0].nodeName) {
  717. parentOffset = offsetParent.offset()
  718. }
  719. parentOffset = {
  720. top: parentOffset.top + parseFloat(offsetParent.css("borderTopWidth")),
  721. left: parentOffset.left + parseFloat(offsetParent.css("borderLeftWidth"))
  722. };
  723. return {
  724. top: offset.top - parentOffset.top - marginTop,
  725. left: offset.left - parentOffset.left - marginLeft
  726. }
  727. };
  728. [{
  729. name: "scrollLeft",
  730. offsetProp: "pageXOffset",
  731. scrollWindow: function(win, value) {
  732. win.scrollTo(value, win.pageYOffset)
  733. }
  734. }, {
  735. name: "scrollTop",
  736. offsetProp: "pageYOffset",
  737. scrollWindow: function(win, value) {
  738. win.scrollTo(win.pageXOffset, value)
  739. }
  740. }].forEach(function(directionStrategy) {
  741. var propName = directionStrategy.name;
  742. initRender.prototype[propName] = function(value) {
  743. if (!this[0]) {
  744. return
  745. }
  746. var window = getWindowByElement(this[0]);
  747. if (void 0 === value) {
  748. return window ? window[directionStrategy.offsetProp] : this[0][propName]
  749. }
  750. if (window) {
  751. directionStrategy.scrollWindow(window, value)
  752. } else {
  753. this[0][propName] = value
  754. }
  755. return this
  756. }
  757. });
  758. initRender.prototype.data = function(key, value) {
  759. if (!this[0]) {
  760. return
  761. }
  762. if (arguments.length < 2) {
  763. return dataUtils.data.call(renderer, this[0], key)
  764. }
  765. dataUtils.data.call(renderer, this[0], key, value);
  766. return this
  767. };
  768. initRender.prototype.removeData = function(key) {
  769. this[0] && dataUtils.removeData(this[0], key);
  770. return this
  771. };
  772. var rendererWrapper = function() {
  773. return renderer.apply(this, arguments)
  774. };
  775. Object.defineProperty(rendererWrapper, "fn", {
  776. enumerable: true,
  777. configurable: true,
  778. get: function() {
  779. return renderer.fn
  780. },
  781. set: function(value) {
  782. renderer.fn = value
  783. }
  784. });
  785. module.exports = {
  786. set: function(strategy) {
  787. renderer = strategy
  788. },
  789. get: function() {
  790. return rendererWrapper
  791. }
  792. };