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useFocusWithin-test.internal.js
Source:useFocusWithin-test.internal.js 
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @emails react-core8 */9'use strict';10import {createEventTarget, setPointerEvent} from 'dom-event-testing-library';11let React;12let ReactFeatureFlags;13let ReactDOM;14let useFocusWithin;15let ReactTestRenderer;16let act;17let Scheduler;18function initializeModules(hasPointerEvents) {19 setPointerEvent(hasPointerEvents);20 jest.resetModules();21 ReactFeatureFlags = require('shared/ReactFeatureFlags');22 ReactFeatureFlags.enableScopeAPI = true;23 ReactFeatureFlags.enableCreateEventHandleAPI = true;24 React = require('react');25 ReactDOM = require('react-dom');26 ReactTestRenderer = require('react-test-renderer');27 Scheduler = require('scheduler');28 act = ReactTestRenderer.unstable_concurrentAct;29 // TODO: This import throws outside of experimental mode. Figure out better30 // strategy for gated imports.31 if (__EXPERIMENTAL__) {32 useFocusWithin = require('react-interactions/events/focus').useFocusWithin;33 }34}35const forcePointerEvents = true;36const table = [[forcePointerEvents], [!forcePointerEvents]];37describe.each(table)(`useFocus`, hasPointerEvents => {38 let container;39 let container2;40 beforeEach(() => {41 initializeModules(hasPointerEvents);42 container = document.createElement('div');43 document.body.appendChild(container);44 container2 = document.createElement('div');45 document.body.appendChild(container2);46 });47 afterEach(() => {48 ReactDOM.render(null, container);49 document.body.removeChild(container);50 document.body.removeChild(container2);51 container = null;52 container2 = null;53 });54 describe('disabled', () => {55 let onFocusWithinChange, onFocusWithinVisibleChange, ref;56 const componentInit = () => {57 onFocusWithinChange = jest.fn();58 onFocusWithinVisibleChange = jest.fn();59 ref = React.createRef();60 const Component = () => {61 const focusWithinRef = useFocusWithin(ref, {62 disabled: true,63 onFocusWithinChange,64 onFocusWithinVisibleChange,65 });66 return <div ref={focusWithinRef} />;67 };68 ReactDOM.render(<Component />, container);69 Scheduler.unstable_flushAll();70 };71 // @gate experimental72 it('prevents custom events being dispatched', () => {73 componentInit();74 const target = createEventTarget(ref.current);75 target.focus();76 target.blur();77 expect(onFocusWithinChange).not.toBeCalled();78 expect(onFocusWithinVisibleChange).not.toBeCalled();79 });80 });81 describe('onFocusWithinChange', () => {82 let onFocusWithinChange, ref, innerRef, innerRef2;83 const Component = ({show}) => {84 const focusWithinRef = useFocusWithin(ref, {85 onFocusWithinChange,86 });87 return (88 <div ref={focusWithinRef}>89 {show && <input ref={innerRef} />}90 <div ref={innerRef2} />91 </div>92 );93 };94 const componentInit = () => {95 onFocusWithinChange = jest.fn();96 ref = React.createRef();97 innerRef = React.createRef();98 innerRef2 = React.createRef();99 ReactDOM.render(<Component show={true} />, container);100 Scheduler.unstable_flushAll();101 };102 // @gate experimental103 it('is called after "blur" and "focus" events on focus target', () => {104 componentInit();105 const target = createEventTarget(ref.current);106 target.focus();107 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);108 expect(onFocusWithinChange).toHaveBeenCalledWith(true);109 target.blur({relatedTarget: container});110 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);111 expect(onFocusWithinChange).toHaveBeenCalledWith(false);112 });113 // @gate experimental114 it('is called after "blur" and "focus" events on descendants', () => {115 componentInit();116 const target = createEventTarget(innerRef.current);117 target.focus();118 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);119 expect(onFocusWithinChange).toHaveBeenCalledWith(true);120 target.blur({relatedTarget: container});121 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);122 expect(onFocusWithinChange).toHaveBeenCalledWith(false);123 });124 // @gate experimental125 it('is only called once when focus moves within and outside the subtree', () => {126 componentInit();127 const node = ref.current;128 const innerNode1 = innerRef.current;129 const innerNode2 = innerRef.current;130 const target = createEventTarget(node);131 const innerTarget1 = createEventTarget(innerNode1);132 const innerTarget2 = createEventTarget(innerNode2);133 // focus shifts into subtree134 innerTarget1.focus();135 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);136 expect(onFocusWithinChange).toHaveBeenCalledWith(true);137 // focus moves around subtree138 innerTarget1.blur({relatedTarget: innerNode2});139 innerTarget2.focus();140 innerTarget2.blur({relatedTarget: node});141 target.focus();142 target.blur({relatedTarget: innerNode1});143 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);144 // focus shifts outside subtree145 innerTarget1.blur({relatedTarget: container});146 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);147 expect(onFocusWithinChange).toHaveBeenCalledWith(false);148 });149 });150 describe('onFocusWithinVisibleChange', () => {151 let onFocusWithinVisibleChange, ref, innerRef, innerRef2;152 const Component = ({show}) => {153 const focusWithinRef = useFocusWithin(ref, {154 onFocusWithinVisibleChange,155 });156 return (157 <div ref={focusWithinRef}>158 {show && <input ref={innerRef} />}159 <div ref={innerRef2} />160 </div>161 );162 };163 const componentInit = () => {164 onFocusWithinVisibleChange = jest.fn();165 ref = React.createRef();166 innerRef = React.createRef();167 innerRef2 = React.createRef();168 ReactDOM.render(<Component show={true} />, container);169 Scheduler.unstable_flushAll();170 };171 // @gate experimental172 it('is called after "focus" and "blur" on focus target if keyboard was used', () => {173 componentInit();174 const target = createEventTarget(ref.current);175 const containerTarget = createEventTarget(container);176 // use keyboard first177 containerTarget.keydown({key: 'Tab'});178 target.focus();179 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);180 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);181 target.blur({relatedTarget: container});182 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);183 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);184 });185 // @gate experimental186 it('is called after "focus" and "blur" on descendants if keyboard was used', () => {187 componentInit();188 const innerTarget = createEventTarget(innerRef.current);189 const containerTarget = createEventTarget(container);190 // use keyboard first191 containerTarget.keydown({key: 'Tab'});192 innerTarget.focus();193 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);194 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);195 innerTarget.blur({relatedTarget: container});196 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);197 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);198 });199 // @gate experimental200 it('is called if non-keyboard event is dispatched on target previously focused with keyboard', () => {201 componentInit();202 const node = ref.current;203 const innerNode1 = innerRef.current;204 const innerNode2 = innerRef2.current;205 const target = createEventTarget(node);206 const innerTarget1 = createEventTarget(innerNode1);207 const innerTarget2 = createEventTarget(innerNode2);208 // use keyboard first209 target.focus();210 target.keydown({key: 'Tab'});211 target.blur({relatedTarget: innerNode1});212 innerTarget1.focus();213 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);214 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);215 // then use pointer on the next target, focus should no longer be visible216 innerTarget2.pointerdown();217 innerTarget1.blur({relatedTarget: innerNode2});218 innerTarget2.focus();219 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);220 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);221 // then use keyboard again222 innerTarget2.keydown({key: 'Tab', shiftKey: true});223 innerTarget2.blur({relatedTarget: innerNode1});224 innerTarget1.focus();225 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(3);226 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);227 // then use pointer on the target, focus should no longer be visible228 innerTarget1.pointerdown();229 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(4);230 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);231 // onFocusVisibleChange should not be called again232 innerTarget1.blur({relatedTarget: container});233 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(4);234 });235 // @gate experimental236 it('is not called after "focus" and "blur" events without keyboard', () => {237 componentInit();238 const innerTarget = createEventTarget(innerRef.current);239 innerTarget.pointerdown();240 innerTarget.pointerup();241 innerTarget.blur({relatedTarget: container});242 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(0);243 });244 // @gate experimental245 it('is only called once when focus moves within and outside the subtree', () => {246 componentInit();247 const node = ref.current;248 const innerNode1 = innerRef.current;249 const innerNode2 = innerRef2.current;250 const target = createEventTarget(node);251 const innerTarget1 = createEventTarget(innerNode1);252 const innerTarget2 = createEventTarget(innerNode2);253 // focus shifts into subtree254 innerTarget1.focus();255 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);256 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);257 // focus moves around subtree258 innerTarget1.blur({relatedTarget: innerNode2});259 innerTarget2.focus();260 innerTarget2.blur({relatedTarget: node});261 target.focus();262 target.blur({relatedTarget: innerNode1});263 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);264 // focus shifts outside subtree265 innerTarget1.blur({relatedTarget: container});266 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);267 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);268 });269 });270 // @gate experimental271 it('should correctly handle focus visibility when typing into an input', () => {272 const onFocusWithinVisibleChange = jest.fn();273 const ref = React.createRef();274 const inputRef = React.createRef();275 const Component = () => {276 const focusWithinRef = useFocusWithin(ref, {277 onFocusWithinVisibleChange,278 });279 return (280 <div ref={focusWithinRef}>281 <input ref={inputRef} type="text" />282 </div>283 );284 };285 act(() => {286 ReactDOM.render(<Component />, container);287 });288 const target = createEventTarget(inputRef.current);289 // focus the target290 target.pointerdown();291 target.focus();292 target.keydown({key: 'a'});293 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(0);294 });295 describe('onBeforeBlurWithin', () => {296 let onBeforeBlurWithin, onAfterBlurWithin, ref, innerRef, innerRef2;297 beforeEach(() => {298 onBeforeBlurWithin = jest.fn();299 onAfterBlurWithin = jest.fn(e => {300 e.persist();301 });302 ref = React.createRef();303 innerRef = React.createRef();304 innerRef2 = React.createRef();305 });306 // @gate experimental307 it('is called after a focused element is unmounted', () => {308 const Component = ({show}) => {309 const focusWithinRef = useFocusWithin(ref, {310 onBeforeBlurWithin,311 onAfterBlurWithin,312 });313 return (314 <div ref={focusWithinRef}>315 {show && <input ref={innerRef} />}316 <div ref={innerRef2} />317 </div>318 );319 };320 ReactDOM.render(<Component show={true} />, container);321 Scheduler.unstable_flushAll();322 const inner = innerRef.current;323 const target = createEventTarget(inner);324 target.keydown({key: 'Tab'});325 target.focus();326 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);327 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);328 ReactDOM.render(<Component show={false} />, container);329 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);330 expect(onAfterBlurWithin).toHaveBeenCalledTimes(1);331 expect(onAfterBlurWithin).toHaveBeenCalledWith(332 expect.objectContaining({relatedTarget: inner}),333 );334 });335 // @gate experimental336 it('is called after a nested focused element is unmounted', () => {337 const Component = ({show}) => {338 const focusWithinRef = useFocusWithin(ref, {339 onBeforeBlurWithin,340 onAfterBlurWithin,341 });342 return (343 <div ref={focusWithinRef}>344 {show && (345 <div>346 <input ref={innerRef} />347 </div>348 )}349 <div ref={innerRef2} />350 </div>351 );352 };353 ReactDOM.render(<Component show={true} />, container);354 Scheduler.unstable_flushAll();355 const inner = innerRef.current;356 const target = createEventTarget(inner);357 target.keydown({key: 'Tab'});358 target.focus();359 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);360 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);361 ReactDOM.render(<Component show={false} />, container);362 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);363 expect(onAfterBlurWithin).toHaveBeenCalledTimes(1);364 expect(onAfterBlurWithin).toHaveBeenCalledWith(365 expect.objectContaining({relatedTarget: inner}),366 );367 });368 // @gate experimental369 it('is called after many elements are unmounted', () => {370 const buttonRef = React.createRef();371 const inputRef = React.createRef();372 const Component = ({show}) => {373 const focusWithinRef = useFocusWithin(ref, {374 onBeforeBlurWithin,375 onAfterBlurWithin,376 });377 return (378 <div ref={focusWithinRef}>379 {show && <button>Press me!</button>}380 {show && <button>Press me!</button>}381 {show && <input ref={inputRef} />}382 {show && <button>Press me!</button>}383 {!show && <button ref={buttonRef}>Press me!</button>}384 {show && <button>Press me!</button>}385 <button>Press me!</button>386 <button>Press me!</button>387 </div>388 );389 };390 ReactDOM.render(<Component show={true} />, container);391 Scheduler.unstable_flushAll();392 inputRef.current.focus();393 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);394 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);395 ReactDOM.render(<Component show={false} />, container);396 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);397 expect(onAfterBlurWithin).toHaveBeenCalledTimes(1);398 });399 // @gate experimental400 it('is called after a nested focused element is unmounted (with scope query)', () => {401 const TestScope = React.unstable_Scope;402 const testScopeQuery = (type, props) => true;403 let targetNodes;404 let targetNode;405 const Component = ({show}) => {406 const scopeRef = React.useRef(null);407 const focusWithinRef = useFocusWithin(scopeRef, {408 onBeforeBlurWithin(event) {409 const scope = scopeRef.current;410 targetNode = innerRef.current;411 targetNodes = scope.DO_NOT_USE_queryAllNodes(testScopeQuery);412 },413 });414 return (415 <TestScope ref={focusWithinRef}>416 {show && <input ref={innerRef} />}417 </TestScope>418 );419 };420 ReactDOM.render(<Component show={true} />, container);421 Scheduler.unstable_flushAll();422 const inner = innerRef.current;423 const target = createEventTarget(inner);424 target.keydown({key: 'Tab'});425 target.focus();426 ReactDOM.render(<Component show={false} />, container);427 Scheduler.unstable_flushAll();428 expect(targetNodes).toEqual([targetNode]);429 });430 // @gate experimental431 it('is called after a focused suspended element is hidden', () => {432 const Suspense = React.Suspense;433 let suspend = false;434 let resolve;435 const promise = new Promise(resolvePromise => (resolve = resolvePromise));436 function Child() {437 if (suspend) {438 throw promise;439 } else {440 return <input ref={innerRef} />;441 }442 }443 const Component = ({show}) => {444 const focusWithinRef = useFocusWithin(ref, {445 onBeforeBlurWithin,446 onAfterBlurWithin,447 });448 return (449 <div ref={focusWithinRef}>450 <Suspense fallback="Loading...">451 <Child />452 </Suspense>453 </div>454 );455 };456 const root = ReactDOM.createRoot(container2);457 act(() => {458 root.render(<Component />);459 });460 jest.runAllTimers();461 expect(container2.innerHTML).toBe('<div><input></div>');462 const inner = innerRef.current;463 const target = createEventTarget(inner);464 target.keydown({key: 'Tab'});465 target.focus();466 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);467 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);468 suspend = true;469 act(() => {470 root.render(<Component />);471 });472 jest.runAllTimers();473 expect(container2.innerHTML).toBe(474 '<div><input style="display: none;">Loading...</div>',475 );476 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);477 expect(onAfterBlurWithin).toHaveBeenCalledTimes(1);478 resolve();479 });480 // @gate experimental481 it('is called after a focused suspended element is hidden then shown', () => {482 const Suspense = React.Suspense;483 let suspend = false;484 let resolve;485 const promise = new Promise(resolvePromise => (resolve = resolvePromise));486 const buttonRef = React.createRef();487 function Child() {488 if (suspend) {489 throw promise;490 } else {491 return <input ref={innerRef} />;492 }493 }494 const Component = ({show}) => {495 const focusWithinRef = useFocusWithin(ref, {496 onBeforeBlurWithin,497 onAfterBlurWithin,498 });499 return (500 <div ref={focusWithinRef}>501 <Suspense fallback={<button ref={buttonRef}>Loading...</button>}>502 <Child />503 </Suspense>504 </div>505 );506 };507 const root = ReactDOM.createRoot(container2);508 act(() => {509 root.render(<Component />);510 });511 jest.runAllTimers();512 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);513 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);514 suspend = true;515 act(() => {516 root.render(<Component />);517 });518 jest.runAllTimers();519 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);520 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);521 act(() => {522 root.render(<Component />);523 });524 jest.runAllTimers();525 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);526 expect(onAfterBlurWithin).toHaveBeenCalledTimes(0);527 buttonRef.current.focus();528 suspend = false;529 act(() => {530 root.render(<Component />);531 });532 jest.runAllTimers();533 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);534 expect(onAfterBlurWithin).toHaveBeenCalledTimes(1);535 resolve();536 });537 });...
jquery.ui.position.js
Source:jquery.ui.position.js
1/*!2 * jQuery UI Position 1.10.43 * http://jqueryui.com4 *5 * Copyright 2014 jQuery Foundation and other contributors6 * Released under the MIT license.7 * http://jquery.org/license8 *9 * http://api.jqueryui.com/position/10 */11(function( $, undefined ) {12$.ui = $.ui || {};13var cachedScrollbarWidth,14 max = Math.max,15 abs = Math.abs,16 round = Math.round,17 rhorizontal = /left|center|right/,18 rvertical = /top|center|bottom/,19 roffset = /[\+\-]\d+(\.[\d]+)?%?/,20 rposition = /^\w+/,21 rpercent = /%$/,22 _position = $.fn.position;23function getOffsets( offsets, width, height ) {24 return [25 parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),26 parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )27 ];28}29function parseCss( element, property ) {30 return parseInt( $.css( element, property ), 10 ) || 0;31}32function getDimensions( elem ) {33 var raw = elem[0];34 if ( raw.nodeType === 9 ) {35 return {36 width: elem.width(),37 height: elem.height(),38 offset: { top: 0, left: 0 }39 };40 }41 if ( $.isWindow( raw ) ) {42 return {43 width: elem.width(),44 height: elem.height(),45 offset: { top: elem.scrollTop(), left: elem.scrollLeft() }46 };47 }48 if ( raw.preventDefault ) {49 return {50 width: 0,51 height: 0,52 offset: { top: raw.pageY, left: raw.pageX }53 };54 }55 return {56 width: elem.outerWidth(),57 height: elem.outerHeight(),58 offset: elem.offset()59 };60}61$.position = {62 scrollbarWidth: function() {63 if ( cachedScrollbarWidth !== undefined ) {64 return cachedScrollbarWidth;65 }66 var w1, w2,67 div = $( "<div style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'><div style='height:100px;width:auto;'></div></div>" ),68 innerDiv = div.children()[0];69 $( "body" ).append( div );70 w1 = innerDiv.offsetWidth;71 div.css( "overflow", "scroll" );72 w2 = innerDiv.offsetWidth;73 if ( w1 === w2 ) {74 w2 = div[0].clientWidth;75 }76 div.remove();77 return (cachedScrollbarWidth = w1 - w2);78 },79 getScrollInfo: function( within ) {80 var overflowX = within.isWindow || within.isDocument ? "" :81 within.element.css( "overflow-x" ),82 overflowY = within.isWindow || within.isDocument ? "" :83 within.element.css( "overflow-y" ),84 hasOverflowX = overflowX === "scroll" ||85 ( overflowX === "auto" && within.width < within.element[0].scrollWidth ),86 hasOverflowY = overflowY === "scroll" ||87 ( overflowY === "auto" && within.height < within.element[0].scrollHeight );88 return {89 width: hasOverflowY ? $.position.scrollbarWidth() : 0,90 height: hasOverflowX ? $.position.scrollbarWidth() : 091 };92 },93 getWithinInfo: function( element ) {94 var withinElement = $( element || window ),95 isWindow = $.isWindow( withinElement[0] ),96 isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9;97 return {98 element: withinElement,99 isWindow: isWindow,100 isDocument: isDocument,101 offset: withinElement.offset() || { left: 0, top: 0 },102 scrollLeft: withinElement.scrollLeft(),103 scrollTop: withinElement.scrollTop(),104 width: isWindow ? withinElement.width() : withinElement.outerWidth(),105 height: isWindow ? withinElement.height() : withinElement.outerHeight()106 };107 }108};109$.fn.position = function( options ) {110 if ( !options || !options.of ) {111 return _position.apply( this, arguments );112 }113 // make a copy, we don't want to modify arguments114 options = $.extend( {}, options );115 var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,116 target = $( options.of ),117 within = $.position.getWithinInfo( options.within ),118 scrollInfo = $.position.getScrollInfo( within ),119 collision = ( options.collision || "flip" ).split( " " ),120 offsets = {};121 dimensions = getDimensions( target );122 if ( target[0].preventDefault ) {123 // force left top to allow flipping124 options.at = "left top";125 }126 targetWidth = dimensions.width;127 targetHeight = dimensions.height;128 targetOffset = dimensions.offset;129 // clone to reuse original targetOffset later130 basePosition = $.extend( {}, targetOffset );131 // force my and at to have valid horizontal and vertical positions132 // if a value is missing or invalid, it will be converted to center133 $.each( [ "my", "at" ], function() {134 var pos = ( options[ this ] || "" ).split( " " ),135 horizontalOffset,136 verticalOffset;137 if ( pos.length === 1) {138 pos = rhorizontal.test( pos[ 0 ] ) ?139 pos.concat( [ "center" ] ) :140 rvertical.test( pos[ 0 ] ) ?141 [ "center" ].concat( pos ) :142 [ "center", "center" ];143 }144 pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";145 pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";146 // calculate offsets147 horizontalOffset = roffset.exec( pos[ 0 ] );148 verticalOffset = roffset.exec( pos[ 1 ] );149 offsets[ this ] = [150 horizontalOffset ? horizontalOffset[ 0 ] : 0,151 verticalOffset ? verticalOffset[ 0 ] : 0152 ];153 // reduce to just the positions without the offsets154 options[ this ] = [155 rposition.exec( pos[ 0 ] )[ 0 ],156 rposition.exec( pos[ 1 ] )[ 0 ]157 ];158 });159 // normalize collision option160 if ( collision.length === 1 ) {161 collision[ 1 ] = collision[ 0 ];162 }163 if ( options.at[ 0 ] === "right" ) {164 basePosition.left += targetWidth;165 } else if ( options.at[ 0 ] === "center" ) {166 basePosition.left += targetWidth / 2;167 }168 if ( options.at[ 1 ] === "bottom" ) {169 basePosition.top += targetHeight;170 } else if ( options.at[ 1 ] === "center" ) {171 basePosition.top += targetHeight / 2;172 }173 atOffset = getOffsets( offsets.at, targetWidth, targetHeight );174 basePosition.left += atOffset[ 0 ];175 basePosition.top += atOffset[ 1 ];176 return this.each(function() {177 var collisionPosition, using,178 elem = $( this ),179 elemWidth = elem.outerWidth(),180 elemHeight = elem.outerHeight(),181 marginLeft = parseCss( this, "marginLeft" ),182 marginTop = parseCss( this, "marginTop" ),183 collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) + scrollInfo.width,184 collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) + scrollInfo.height,185 position = $.extend( {}, basePosition ),186 myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );187 if ( options.my[ 0 ] === "right" ) {188 position.left -= elemWidth;189 } else if ( options.my[ 0 ] === "center" ) {190 position.left -= elemWidth / 2;191 }192 if ( options.my[ 1 ] === "bottom" ) {193 position.top -= elemHeight;194 } else if ( options.my[ 1 ] === "center" ) {195 position.top -= elemHeight / 2;196 }197 position.left += myOffset[ 0 ];198 position.top += myOffset[ 1 ];199 // if the browser doesn't support fractions, then round for consistent results200 if ( !$.support.offsetFractions ) {201 position.left = round( position.left );202 position.top = round( position.top );203 }204 collisionPosition = {205 marginLeft: marginLeft,206 marginTop: marginTop207 };208 $.each( [ "left", "top" ], function( i, dir ) {209 if ( $.ui.position[ collision[ i ] ] ) {210 $.ui.position[ collision[ i ] ][ dir ]( position, {211 targetWidth: targetWidth,212 targetHeight: targetHeight,213 elemWidth: elemWidth,214 elemHeight: elemHeight,215 collisionPosition: collisionPosition,216 collisionWidth: collisionWidth,217 collisionHeight: collisionHeight,218 offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],219 my: options.my,220 at: options.at,221 within: within,222 elem : elem223 });224 }225 });226 if ( options.using ) {227 // adds feedback as second argument to using callback, if present228 using = function( props ) {229 var left = targetOffset.left - position.left,230 right = left + targetWidth - elemWidth,231 top = targetOffset.top - position.top,232 bottom = top + targetHeight - elemHeight,233 feedback = {234 target: {235 element: target,236 left: targetOffset.left,237 top: targetOffset.top,238 width: targetWidth,239 height: targetHeight240 },241 element: {242 element: elem,243 left: position.left,244 top: position.top,245 width: elemWidth,246 height: elemHeight247 },248 horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",249 vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"250 };251 if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {252 feedback.horizontal = "center";253 }254 if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {255 feedback.vertical = "middle";256 }257 if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {258 feedback.important = "horizontal";259 } else {260 feedback.important = "vertical";261 }262 options.using.call( this, props, feedback );263 };264 }265 elem.offset( $.extend( position, { using: using } ) );266 });267};268$.ui.position = {269 fit: {270 left: function( position, data ) {271 var within = data.within,272 withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,273 outerWidth = within.width,274 collisionPosLeft = position.left - data.collisionPosition.marginLeft,275 overLeft = withinOffset - collisionPosLeft,276 overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,277 newOverRight;278 // element is wider than within279 if ( data.collisionWidth > outerWidth ) {280 // element is initially over the left side of within281 if ( overLeft > 0 && overRight <= 0 ) {282 newOverRight = position.left + overLeft + data.collisionWidth - outerWidth - withinOffset;283 position.left += overLeft - newOverRight;284 // element is initially over right side of within285 } else if ( overRight > 0 && overLeft <= 0 ) {286 position.left = withinOffset;287 // element is initially over both left and right sides of within288 } else {289 if ( overLeft > overRight ) {290 position.left = withinOffset + outerWidth - data.collisionWidth;291 } else {292 position.left = withinOffset;293 }294 }295 // too far left -> align with left edge296 } else if ( overLeft > 0 ) {297 position.left += overLeft;298 // too far right -> align with right edge299 } else if ( overRight > 0 ) {300 position.left -= overRight;301 // adjust based on position and margin302 } else {303 position.left = max( position.left - collisionPosLeft, position.left );304 }305 },306 top: function( position, data ) {307 var within = data.within,308 withinOffset = within.isWindow ? within.scrollTop : within.offset.top,309 outerHeight = data.within.height,310 collisionPosTop = position.top - data.collisionPosition.marginTop,311 overTop = withinOffset - collisionPosTop,312 overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,313 newOverBottom;314 // element is taller than within315 if ( data.collisionHeight > outerHeight ) {316 // element is initially over the top of within317 if ( overTop > 0 && overBottom <= 0 ) {318 newOverBottom = position.top + overTop + data.collisionHeight - outerHeight - withinOffset;319 position.top += overTop - newOverBottom;320 // element is initially over bottom of within321 } else if ( overBottom > 0 && overTop <= 0 ) {322 position.top = withinOffset;323 // element is initially over both top and bottom of within324 } else {325 if ( overTop > overBottom ) {326 position.top = withinOffset + outerHeight - data.collisionHeight;327 } else {328 position.top = withinOffset;329 }330 }331 // too far up -> align with top332 } else if ( overTop > 0 ) {333 position.top += overTop;334 // too far down -> align with bottom edge335 } else if ( overBottom > 0 ) {336 position.top -= overBottom;337 // adjust based on position and margin338 } else {339 position.top = max( position.top - collisionPosTop, position.top );340 }341 }342 },343 flip: {344 left: function( position, data ) {345 var within = data.within,346 withinOffset = within.offset.left + within.scrollLeft,347 outerWidth = within.width,348 offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,349 collisionPosLeft = position.left - data.collisionPosition.marginLeft,350 overLeft = collisionPosLeft - offsetLeft,351 overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,352 myOffset = data.my[ 0 ] === "left" ?353 -data.elemWidth :354 data.my[ 0 ] === "right" ?355 data.elemWidth :356 0,357 atOffset = data.at[ 0 ] === "left" ?358 data.targetWidth :359 data.at[ 0 ] === "right" ?360 -data.targetWidth :361 0,362 offset = -2 * data.offset[ 0 ],363 newOverRight,364 newOverLeft;365 if ( overLeft < 0 ) {366 newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth - outerWidth - withinOffset;367 if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {368 position.left += myOffset + atOffset + offset;369 }370 }371 else if ( overRight > 0 ) {372 newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset + atOffset + offset - offsetLeft;373 if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {374 position.left += myOffset + atOffset + offset;375 }376 }377 },378 top: function( position, data ) {379 var within = data.within,380 withinOffset = within.offset.top + within.scrollTop,381 outerHeight = within.height,382 offsetTop = within.isWindow ? within.scrollTop : within.offset.top,383 collisionPosTop = position.top - data.collisionPosition.marginTop,384 overTop = collisionPosTop - offsetTop,385 overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,386 top = data.my[ 1 ] === "top",387 myOffset = top ?388 -data.elemHeight :389 data.my[ 1 ] === "bottom" ?390 data.elemHeight :391 0,392 atOffset = data.at[ 1 ] === "top" ?393 data.targetHeight :394 data.at[ 1 ] === "bottom" ?395 -data.targetHeight :396 0,397 offset = -2 * data.offset[ 1 ],398 newOverTop,399 newOverBottom;400 if ( overTop < 0 ) {401 newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight - outerHeight - withinOffset;402 if ( ( position.top + myOffset + atOffset + offset) > overTop && ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) ) {403 position.top += myOffset + atOffset + offset;404 }405 }406 else if ( overBottom > 0 ) {407 newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset + offset - offsetTop;408 if ( ( position.top + myOffset + atOffset + offset) > overBottom && ( newOverTop > 0 || abs( newOverTop ) < overBottom ) ) {409 position.top += myOffset + atOffset + offset;410 }411 }412 }413 },414 flipfit: {415 left: function() {416 $.ui.position.flip.left.apply( this, arguments );417 $.ui.position.fit.left.apply( this, arguments );418 },419 top: function() {420 $.ui.position.flip.top.apply( this, arguments );421 $.ui.position.fit.top.apply( this, arguments );422 }423 }424};425// fraction support test426(function () {427 var testElement, testElementParent, testElementStyle, offsetLeft, i,428 body = document.getElementsByTagName( "body" )[ 0 ],429 div = document.createElement( "div" );430 //Create a "fake body" for testing based on method used in jQuery.support431 testElement = document.createElement( body ? "div" : "body" );432 testElementStyle = {433 visibility: "hidden",434 width: 0,435 height: 0,436 border: 0,437 margin: 0,438 background: "none"439 };440 if ( body ) {441 $.extend( testElementStyle, {442 position: "absolute",443 left: "-1000px",444 top: "-1000px"445 });446 }447 for ( i in testElementStyle ) {448 testElement.style[ i ] = testElementStyle[ i ];449 }450 testElement.appendChild( div );451 testElementParent = body || document.documentElement;452 testElementParent.insertBefore( testElement, testElementParent.firstChild );453 div.style.cssText = "position: absolute; left: 10.7432222px;";454 offsetLeft = $( div ).offset().left;455 $.support.offsetFractions = offsetLeft > 10 && offsetLeft < 11;456 testElement.innerHTML = "";457 testElementParent.removeChild( testElement );458})();...
position.js
Source:position.js
1/*!2 * jQuery UI Position 1.12.13 * http://jqueryui.com4 *5 * Copyright jQuery Foundation and other contributors6 * Released under the MIT license.7 * http://jquery.org/license8 *9 * http://api.jqueryui.com/position/10 */11//>>label: Position12//>>group: Core13//>>description: Positions elements relative to other elements.14//>>docs: http://api.jqueryui.com/position/15//>>demos: http://jqueryui.com/position/16( function( factory ) {17 if ( typeof define === "function" && define.amd ) {18 // AMD. Register as an anonymous module.19 define( [ "jquery", "./version" ], factory );20 } else {21 // Browser globals22 factory( jQuery );23 }24}( function( $ ) {25( function() {26var cachedScrollbarWidth,27 max = Math.max,28 abs = Math.abs,29 rhorizontal = /left|center|right/,30 rvertical = /top|center|bottom/,31 roffset = /[\+\-]\d+(\.[\d]+)?%?/,32 rposition = /^\w+/,33 rpercent = /%$/,34 _position = $.fn.position;35function getOffsets( offsets, width, height ) {36 return [37 parseFloat( offsets[ 0 ] ) * ( rpercent.test( offsets[ 0 ] ) ? width / 100 : 1 ),38 parseFloat( offsets[ 1 ] ) * ( rpercent.test( offsets[ 1 ] ) ? height / 100 : 1 )39 ];40}41function parseCss( element, property ) {42 return parseInt( $.css( element, property ), 10 ) || 0;43}44function getDimensions( elem ) {45 var raw = elem[ 0 ];46 if ( raw.nodeType === 9 ) {47 return {48 width: elem.width(),49 height: elem.height(),50 offset: { top: 0, left: 0 }51 };52 }53 if ( $.isWindow( raw ) ) {54 return {55 width: elem.width(),56 height: elem.height(),57 offset: { top: elem.scrollTop(), left: elem.scrollLeft() }58 };59 }60 if ( raw.preventDefault ) {61 return {62 width: 0,63 height: 0,64 offset: { top: raw.pageY, left: raw.pageX }65 };66 }67 return {68 width: elem.outerWidth(),69 height: elem.outerHeight(),70 offset: elem.offset()71 };72}73$.position = {74 scrollbarWidth: function() {75 if ( cachedScrollbarWidth !== undefined ) {76 return cachedScrollbarWidth;77 }78 var w1, w2,79 div = $( "<div " +80 "style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'>" +81 "<div style='height:100px;width:auto;'></div></div>" ),82 innerDiv = div.children()[ 0 ];83 $( "body" ).append( div );84 w1 = innerDiv.offsetWidth;85 div.css( "overflow", "scroll" );86 w2 = innerDiv.offsetWidth;87 if ( w1 === w2 ) {88 w2 = div[ 0 ].clientWidth;89 }90 div.remove();91 return ( cachedScrollbarWidth = w1 - w2 );92 },93 getScrollInfo: function( within ) {94 var overflowX = within.isWindow || within.isDocument ? "" :95 within.element.css( "overflow-x" ),96 overflowY = within.isWindow || within.isDocument ? "" :97 within.element.css( "overflow-y" ),98 hasOverflowX = overflowX === "scroll" ||99 ( overflowX === "auto" && within.width < within.element[ 0 ].scrollWidth ),100 hasOverflowY = overflowY === "scroll" ||101 ( overflowY === "auto" && within.height < within.element[ 0 ].scrollHeight );102 return {103 width: hasOverflowY ? $.position.scrollbarWidth() : 0,104 height: hasOverflowX ? $.position.scrollbarWidth() : 0105 };106 },107 getWithinInfo: function( element ) {108 var withinElement = $( element || window ),109 isWindow = $.isWindow( withinElement[ 0 ] ),110 isDocument = !!withinElement[ 0 ] && withinElement[ 0 ].nodeType === 9,111 hasOffset = !isWindow && !isDocument;112 return {113 element: withinElement,114 isWindow: isWindow,115 isDocument: isDocument,116 offset: hasOffset ? $( element ).offset() : { left: 0, top: 0 },117 scrollLeft: withinElement.scrollLeft(),118 scrollTop: withinElement.scrollTop(),119 width: withinElement.outerWidth(),120 height: withinElement.outerHeight()121 };122 }123};124$.fn.position = function( options ) {125 if ( !options || !options.of ) {126 return _position.apply( this, arguments );127 }128 // Make a copy, we don't want to modify arguments129 options = $.extend( {}, options );130 var atOffset, targetWidth, targetHeight, targetOffset, basePosition, dimensions,131 target = $( options.of ),132 within = $.position.getWithinInfo( options.within ),133 scrollInfo = $.position.getScrollInfo( within ),134 collision = ( options.collision || "flip" ).split( " " ),135 offsets = {};136 dimensions = getDimensions( target );137 if ( target[ 0 ].preventDefault ) {138 // Force left top to allow flipping139 options.at = "left top";140 }141 targetWidth = dimensions.width;142 targetHeight = dimensions.height;143 targetOffset = dimensions.offset;144 // Clone to reuse original targetOffset later145 basePosition = $.extend( {}, targetOffset );146 // Force my and at to have valid horizontal and vertical positions147 // if a value is missing or invalid, it will be converted to center148 $.each( [ "my", "at" ], function() {149 var pos = ( options[ this ] || "" ).split( " " ),150 horizontalOffset,151 verticalOffset;152 if ( pos.length === 1 ) {153 pos = rhorizontal.test( pos[ 0 ] ) ?154 pos.concat( [ "center" ] ) :155 rvertical.test( pos[ 0 ] ) ?156 [ "center" ].concat( pos ) :157 [ "center", "center" ];158 }159 pos[ 0 ] = rhorizontal.test( pos[ 0 ] ) ? pos[ 0 ] : "center";160 pos[ 1 ] = rvertical.test( pos[ 1 ] ) ? pos[ 1 ] : "center";161 // Calculate offsets162 horizontalOffset = roffset.exec( pos[ 0 ] );163 verticalOffset = roffset.exec( pos[ 1 ] );164 offsets[ this ] = [165 horizontalOffset ? horizontalOffset[ 0 ] : 0,166 verticalOffset ? verticalOffset[ 0 ] : 0167 ];168 // Reduce to just the positions without the offsets169 options[ this ] = [170 rposition.exec( pos[ 0 ] )[ 0 ],171 rposition.exec( pos[ 1 ] )[ 0 ]172 ];173 } );174 // Normalize collision option175 if ( collision.length === 1 ) {176 collision[ 1 ] = collision[ 0 ];177 }178 if ( options.at[ 0 ] === "right" ) {179 basePosition.left += targetWidth;180 } else if ( options.at[ 0 ] === "center" ) {181 basePosition.left += targetWidth / 2;182 }183 if ( options.at[ 1 ] === "bottom" ) {184 basePosition.top += targetHeight;185 } else if ( options.at[ 1 ] === "center" ) {186 basePosition.top += targetHeight / 2;187 }188 atOffset = getOffsets( offsets.at, targetWidth, targetHeight );189 basePosition.left += atOffset[ 0 ];190 basePosition.top += atOffset[ 1 ];191 return this.each( function() {192 var collisionPosition, using,193 elem = $( this ),194 elemWidth = elem.outerWidth(),195 elemHeight = elem.outerHeight(),196 marginLeft = parseCss( this, "marginLeft" ),197 marginTop = parseCss( this, "marginTop" ),198 collisionWidth = elemWidth + marginLeft + parseCss( this, "marginRight" ) +199 scrollInfo.width,200 collisionHeight = elemHeight + marginTop + parseCss( this, "marginBottom" ) +201 scrollInfo.height,202 position = $.extend( {}, basePosition ),203 myOffset = getOffsets( offsets.my, elem.outerWidth(), elem.outerHeight() );204 if ( options.my[ 0 ] === "right" ) {205 position.left -= elemWidth;206 } else if ( options.my[ 0 ] === "center" ) {207 position.left -= elemWidth / 2;208 }209 if ( options.my[ 1 ] === "bottom" ) {210 position.top -= elemHeight;211 } else if ( options.my[ 1 ] === "center" ) {212 position.top -= elemHeight / 2;213 }214 position.left += myOffset[ 0 ];215 position.top += myOffset[ 1 ];216 collisionPosition = {217 marginLeft: marginLeft,218 marginTop: marginTop219 };220 $.each( [ "left", "top" ], function( i, dir ) {221 if ( $.ui.position[ collision[ i ] ] ) {222 $.ui.position[ collision[ i ] ][ dir ]( position, {223 targetWidth: targetWidth,224 targetHeight: targetHeight,225 elemWidth: elemWidth,226 elemHeight: elemHeight,227 collisionPosition: collisionPosition,228 collisionWidth: collisionWidth,229 collisionHeight: collisionHeight,230 offset: [ atOffset[ 0 ] + myOffset[ 0 ], atOffset [ 1 ] + myOffset[ 1 ] ],231 my: options.my,232 at: options.at,233 within: within,234 elem: elem235 } );236 }237 } );238 if ( options.using ) {239 // Adds feedback as second argument to using callback, if present240 using = function( props ) {241 var left = targetOffset.left - position.left,242 right = left + targetWidth - elemWidth,243 top = targetOffset.top - position.top,244 bottom = top + targetHeight - elemHeight,245 feedback = {246 target: {247 element: target,248 left: targetOffset.left,249 top: targetOffset.top,250 width: targetWidth,251 height: targetHeight252 },253 element: {254 element: elem,255 left: position.left,256 top: position.top,257 width: elemWidth,258 height: elemHeight259 },260 horizontal: right < 0 ? "left" : left > 0 ? "right" : "center",261 vertical: bottom < 0 ? "top" : top > 0 ? "bottom" : "middle"262 };263 if ( targetWidth < elemWidth && abs( left + right ) < targetWidth ) {264 feedback.horizontal = "center";265 }266 if ( targetHeight < elemHeight && abs( top + bottom ) < targetHeight ) {267 feedback.vertical = "middle";268 }269 if ( max( abs( left ), abs( right ) ) > max( abs( top ), abs( bottom ) ) ) {270 feedback.important = "horizontal";271 } else {272 feedback.important = "vertical";273 }274 options.using.call( this, props, feedback );275 };276 }277 elem.offset( $.extend( position, { using: using } ) );278 } );279};280$.ui.position = {281 fit: {282 left: function( position, data ) {283 var within = data.within,284 withinOffset = within.isWindow ? within.scrollLeft : within.offset.left,285 outerWidth = within.width,286 collisionPosLeft = position.left - data.collisionPosition.marginLeft,287 overLeft = withinOffset - collisionPosLeft,288 overRight = collisionPosLeft + data.collisionWidth - outerWidth - withinOffset,289 newOverRight;290 // Element is wider than within291 if ( data.collisionWidth > outerWidth ) {292 // Element is initially over the left side of within293 if ( overLeft > 0 && overRight <= 0 ) {294 newOverRight = position.left + overLeft + data.collisionWidth - outerWidth -295 withinOffset;296 position.left += overLeft - newOverRight;297 // Element is initially over right side of within298 } else if ( overRight > 0 && overLeft <= 0 ) {299 position.left = withinOffset;300 // Element is initially over both left and right sides of within301 } else {302 if ( overLeft > overRight ) {303 position.left = withinOffset + outerWidth - data.collisionWidth;304 } else {305 position.left = withinOffset;306 }307 }308 // Too far left -> align with left edge309 } else if ( overLeft > 0 ) {310 position.left += overLeft;311 // Too far right -> align with right edge312 } else if ( overRight > 0 ) {313 position.left -= overRight;314 // Adjust based on position and margin315 } else {316 position.left = max( position.left - collisionPosLeft, position.left );317 }318 },319 top: function( position, data ) {320 var within = data.within,321 withinOffset = within.isWindow ? within.scrollTop : within.offset.top,322 outerHeight = data.within.height,323 collisionPosTop = position.top - data.collisionPosition.marginTop,324 overTop = withinOffset - collisionPosTop,325 overBottom = collisionPosTop + data.collisionHeight - outerHeight - withinOffset,326 newOverBottom;327 // Element is taller than within328 if ( data.collisionHeight > outerHeight ) {329 // Element is initially over the top of within330 if ( overTop > 0 && overBottom <= 0 ) {331 newOverBottom = position.top + overTop + data.collisionHeight - outerHeight -332 withinOffset;333 position.top += overTop - newOverBottom;334 // Element is initially over bottom of within335 } else if ( overBottom > 0 && overTop <= 0 ) {336 position.top = withinOffset;337 // Element is initially over both top and bottom of within338 } else {339 if ( overTop > overBottom ) {340 position.top = withinOffset + outerHeight - data.collisionHeight;341 } else {342 position.top = withinOffset;343 }344 }345 // Too far up -> align with top346 } else if ( overTop > 0 ) {347 position.top += overTop;348 // Too far down -> align with bottom edge349 } else if ( overBottom > 0 ) {350 position.top -= overBottom;351 // Adjust based on position and margin352 } else {353 position.top = max( position.top - collisionPosTop, position.top );354 }355 }356 },357 flip: {358 left: function( position, data ) {359 var within = data.within,360 withinOffset = within.offset.left + within.scrollLeft,361 outerWidth = within.width,362 offsetLeft = within.isWindow ? within.scrollLeft : within.offset.left,363 collisionPosLeft = position.left - data.collisionPosition.marginLeft,364 overLeft = collisionPosLeft - offsetLeft,365 overRight = collisionPosLeft + data.collisionWidth - outerWidth - offsetLeft,366 myOffset = data.my[ 0 ] === "left" ?367 -data.elemWidth :368 data.my[ 0 ] === "right" ?369 data.elemWidth :370 0,371 atOffset = data.at[ 0 ] === "left" ?372 data.targetWidth :373 data.at[ 0 ] === "right" ?374 -data.targetWidth :375 0,376 offset = -2 * data.offset[ 0 ],377 newOverRight,378 newOverLeft;379 if ( overLeft < 0 ) {380 newOverRight = position.left + myOffset + atOffset + offset + data.collisionWidth -381 outerWidth - withinOffset;382 if ( newOverRight < 0 || newOverRight < abs( overLeft ) ) {383 position.left += myOffset + atOffset + offset;384 }385 } else if ( overRight > 0 ) {386 newOverLeft = position.left - data.collisionPosition.marginLeft + myOffset +387 atOffset + offset - offsetLeft;388 if ( newOverLeft > 0 || abs( newOverLeft ) < overRight ) {389 position.left += myOffset + atOffset + offset;390 }391 }392 },393 top: function( position, data ) {394 var within = data.within,395 withinOffset = within.offset.top + within.scrollTop,396 outerHeight = within.height,397 offsetTop = within.isWindow ? within.scrollTop : within.offset.top,398 collisionPosTop = position.top - data.collisionPosition.marginTop,399 overTop = collisionPosTop - offsetTop,400 overBottom = collisionPosTop + data.collisionHeight - outerHeight - offsetTop,401 top = data.my[ 1 ] === "top",402 myOffset = top ?403 -data.elemHeight :404 data.my[ 1 ] === "bottom" ?405 data.elemHeight :406 0,407 atOffset = data.at[ 1 ] === "top" ?408 data.targetHeight :409 data.at[ 1 ] === "bottom" ?410 -data.targetHeight :411 0,412 offset = -2 * data.offset[ 1 ],413 newOverTop,414 newOverBottom;415 if ( overTop < 0 ) {416 newOverBottom = position.top + myOffset + atOffset + offset + data.collisionHeight -417 outerHeight - withinOffset;418 if ( newOverBottom < 0 || newOverBottom < abs( overTop ) ) {419 position.top += myOffset + atOffset + offset;420 }421 } else if ( overBottom > 0 ) {422 newOverTop = position.top - data.collisionPosition.marginTop + myOffset + atOffset +423 offset - offsetTop;424 if ( newOverTop > 0 || abs( newOverTop ) < overBottom ) {425 position.top += myOffset + atOffset + offset;426 }427 }428 }429 },430 flipfit: {431 left: function() {432 $.ui.position.flip.left.apply( this, arguments );433 $.ui.position.fit.left.apply( this, arguments );434 },435 top: function() {436 $.ui.position.flip.top.apply( this, arguments );437 $.ui.position.fit.top.apply( this, arguments );438 }439 }440};441} )();442return $.ui.position;...
FocusWithin-test.internal.js
Source:FocusWithin-test.internal.js
1/**2 * Copyright (c) Facebook, Inc. and its affiliates.3 *4 * This source code is licensed under the MIT license found in the5 * LICENSE file in the root directory of this source tree.6 *7 * @emails react-core8 */9'use strict';10import {createEventTarget, setPointerEvent} from 'dom-event-testing-library';11let React;12let ReactFeatureFlags;13let ReactDOM;14let FocusWithinResponder;15let useFocusWithin;16let Scheduler;17const initializeModules = hasPointerEvents => {18 setPointerEvent(hasPointerEvents);19 jest.resetModules();20 ReactFeatureFlags = require('shared/ReactFeatureFlags');21 ReactFeatureFlags.enableDeprecatedFlareAPI = true;22 React = require('react');23 ReactDOM = require('react-dom');24 FocusWithinResponder = require('react-interactions/events/focus')25 .FocusWithinResponder;26 useFocusWithin = require('react-interactions/events/focus').useFocusWithin;27 Scheduler = require('scheduler');28};29const forcePointerEvents = true;30const table = [[forcePointerEvents], [!forcePointerEvents]];31describe.each(table)('FocusWithin responder', hasPointerEvents => {32 let container;33 if (!__EXPERIMENTAL__) {34 it("empty test so Jest doesn't complain", () => {});35 return;36 }37 beforeEach(() => {38 initializeModules();39 container = document.createElement('div');40 document.body.appendChild(container);41 });42 afterEach(() => {43 ReactDOM.render(null, container);44 document.body.removeChild(container);45 container = null;46 });47 describe('disabled', () => {48 let onFocusWithinChange, onFocusWithinVisibleChange, ref;49 beforeEach(() => {50 onFocusWithinChange = jest.fn();51 onFocusWithinVisibleChange = jest.fn();52 ref = React.createRef();53 const Component = () => {54 const listener = useFocusWithin({55 disabled: true,56 onFocusWithinChange,57 onFocusWithinVisibleChange,58 });59 return <div ref={ref} DEPRECATED_flareListeners={listener} />;60 };61 ReactDOM.render(<Component />, container);62 });63 it('prevents custom events being dispatched', () => {64 const target = createEventTarget(ref.current);65 target.focus();66 target.blur();67 expect(onFocusWithinChange).not.toBeCalled();68 expect(onFocusWithinVisibleChange).not.toBeCalled();69 });70 });71 describe('onFocusWithinChange', () => {72 let onFocusWithinChange, ref, innerRef, innerRef2;73 const Component = ({show}) => {74 const listener = useFocusWithin({75 onFocusWithinChange,76 });77 return (78 <div ref={ref} DEPRECATED_flareListeners={listener}>79 {show && <input ref={innerRef} />}80 <div ref={innerRef2} />81 </div>82 );83 };84 beforeEach(() => {85 onFocusWithinChange = jest.fn();86 ref = React.createRef();87 innerRef = React.createRef();88 innerRef2 = React.createRef();89 ReactDOM.render(<Component show={true} />, container);90 });91 it('is called after "blur" and "focus" events on focus target', () => {92 const target = createEventTarget(ref.current);93 target.focus();94 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);95 expect(onFocusWithinChange).toHaveBeenCalledWith(true);96 target.blur({relatedTarget: container});97 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);98 expect(onFocusWithinChange).toHaveBeenCalledWith(false);99 });100 it('is called after "blur" and "focus" events on descendants', () => {101 const target = createEventTarget(innerRef.current);102 target.focus();103 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);104 expect(onFocusWithinChange).toHaveBeenCalledWith(true);105 target.blur({relatedTarget: container});106 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);107 expect(onFocusWithinChange).toHaveBeenCalledWith(false);108 });109 it('is only called once when focus moves within and outside the subtree', () => {110 const node = ref.current;111 const innerNode1 = innerRef.current;112 const innerNode2 = innerRef.current;113 const target = createEventTarget(node);114 const innerTarget1 = createEventTarget(innerNode1);115 const innerTarget2 = createEventTarget(innerNode2);116 // focus shifts into subtree117 innerTarget1.focus();118 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);119 expect(onFocusWithinChange).toHaveBeenCalledWith(true);120 // focus moves around subtree121 innerTarget1.blur({relatedTarget: innerNode2});122 innerTarget2.focus();123 innerTarget2.blur({relatedTarget: node});124 target.focus();125 target.blur({relatedTarget: innerNode1});126 expect(onFocusWithinChange).toHaveBeenCalledTimes(1);127 // focus shifts outside subtree128 innerTarget1.blur({relatedTarget: container});129 expect(onFocusWithinChange).toHaveBeenCalledTimes(2);130 expect(onFocusWithinChange).toHaveBeenCalledWith(false);131 });132 });133 describe('onFocusWithinVisibleChange', () => {134 let onFocusWithinVisibleChange, ref, innerRef, innerRef2;135 const Component = ({show}) => {136 const listener = useFocusWithin({137 onFocusWithinVisibleChange,138 });139 return (140 <div ref={ref} DEPRECATED_flareListeners={listener}>141 {show && <input ref={innerRef} />}142 <div ref={innerRef2} />143 </div>144 );145 };146 beforeEach(() => {147 onFocusWithinVisibleChange = jest.fn();148 ref = React.createRef();149 innerRef = React.createRef();150 innerRef2 = React.createRef();151 ReactDOM.render(<Component show={true} />, container);152 });153 it('is called after "focus" and "blur" on focus target if keyboard was used', () => {154 const target = createEventTarget(ref.current);155 const containerTarget = createEventTarget(container);156 // use keyboard first157 containerTarget.keydown({key: 'Tab'});158 target.focus();159 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);160 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);161 target.blur({relatedTarget: container});162 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);163 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);164 });165 it('is called after "focus" and "blur" on descendants if keyboard was used', () => {166 const innerTarget = createEventTarget(innerRef.current);167 const containerTarget = createEventTarget(container);168 // use keyboard first169 containerTarget.keydown({key: 'Tab'});170 innerTarget.focus();171 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);172 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);173 innerTarget.blur({relatedTarget: container});174 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);175 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);176 });177 it('is called if non-keyboard event is dispatched on target previously focused with keyboard', () => {178 const node = ref.current;179 const innerNode1 = innerRef.current;180 const innerNode2 = innerRef2.current;181 const target = createEventTarget(node);182 const innerTarget1 = createEventTarget(innerNode1);183 const innerTarget2 = createEventTarget(innerNode2);184 // use keyboard first185 target.focus();186 target.keydown({key: 'Tab'});187 target.blur({relatedTarget: innerNode1});188 innerTarget1.focus();189 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);190 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);191 // then use pointer on the next target, focus should no longer be visible192 innerTarget2.pointerdown();193 innerTarget1.blur({relatedTarget: innerNode2});194 innerTarget2.focus();195 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);196 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);197 // then use keyboard again198 innerTarget2.keydown({key: 'Tab', shiftKey: true});199 innerTarget2.blur({relatedTarget: innerNode1});200 innerTarget1.focus();201 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(3);202 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);203 // then use pointer on the target, focus should no longer be visible204 innerTarget1.pointerdown();205 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(4);206 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);207 // onFocusVisibleChange should not be called again208 innerTarget1.blur({relatedTarget: container});209 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(4);210 });211 it('is not called after "focus" and "blur" events without keyboard', () => {212 const innerTarget = createEventTarget(innerRef.current);213 innerTarget.pointerdown();214 innerTarget.pointerup();215 innerTarget.blur({relatedTarget: container});216 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(0);217 });218 it('is only called once when focus moves within and outside the subtree', () => {219 const node = ref.current;220 const innerNode1 = innerRef.current;221 const innerNode2 = innerRef2.current;222 const target = createEventTarget(node);223 const innerTarget1 = createEventTarget(innerNode1);224 const innerTarget2 = createEventTarget(innerNode2);225 // focus shifts into subtree226 innerTarget1.focus();227 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);228 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(true);229 // focus moves around subtree230 innerTarget1.blur({relatedTarget: innerNode2});231 innerTarget2.focus();232 innerTarget2.blur({relatedTarget: node});233 target.focus();234 target.blur({relatedTarget: innerNode1});235 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(1);236 // focus shifts outside subtree237 innerTarget1.blur({relatedTarget: container});238 expect(onFocusWithinVisibleChange).toHaveBeenCalledTimes(2);239 expect(onFocusWithinVisibleChange).toHaveBeenCalledWith(false);240 });241 });242 describe('onBeforeBlurWithin', () => {243 let onBeforeBlurWithin, onBlurWithin, ref, innerRef, innerRef2;244 beforeEach(() => {245 onBeforeBlurWithin = jest.fn();246 onBlurWithin = jest.fn();247 ref = React.createRef();248 innerRef = React.createRef();249 innerRef2 = React.createRef();250 });251 it('is called after a focused element is unmounted', () => {252 const Component = ({show}) => {253 const listener = useFocusWithin({254 onBeforeBlurWithin,255 onBlurWithin,256 });257 return (258 <div ref={ref} DEPRECATED_flareListeners={listener}>259 {show && <input ref={innerRef} />}260 <div ref={innerRef2} />261 </div>262 );263 };264 ReactDOM.render(<Component show={true} />, container);265 const inner = innerRef.current;266 const target = createEventTarget(inner);267 target.keydown({key: 'Tab'});268 target.focus();269 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);270 expect(onBlurWithin).toHaveBeenCalledTimes(0);271 ReactDOM.render(<Component show={false} />, container);272 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);273 expect(onBlurWithin).toHaveBeenCalledTimes(1);274 expect(onBlurWithin).toHaveBeenCalledWith(275 expect.objectContaining({isTargetAttached: false}),276 );277 });278 it('is called after a nested focused element is unmounted', () => {279 const Component = ({show}) => {280 const listener = useFocusWithin({281 onBeforeBlurWithin,282 onBlurWithin,283 });284 return (285 <div ref={ref} DEPRECATED_flareListeners={listener}>286 {show && (287 <div>288 <input ref={innerRef} />289 </div>290 )}291 <div ref={innerRef2} />292 </div>293 );294 };295 ReactDOM.render(<Component show={true} />, container);296 const inner = innerRef.current;297 const target = createEventTarget(inner);298 target.keydown({key: 'Tab'});299 target.focus();300 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);301 expect(onBlurWithin).toHaveBeenCalledTimes(0);302 ReactDOM.render(<Component show={false} />, container);303 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);304 expect(onBlurWithin).toHaveBeenCalledTimes(1);305 expect(onBlurWithin).toHaveBeenCalledWith(306 expect.objectContaining({isTargetAttached: false}),307 );308 });309 it.experimental(310 'is called after a focused suspended element is hidden',311 () => {312 const Suspense = React.Suspense;313 let suspend = false;314 let resolve;315 let promise = new Promise(resolvePromise => (resolve = resolvePromise));316 function Child() {317 if (suspend) {318 throw promise;319 } else {320 return <input ref={innerRef} />;321 }322 }323 const Component = ({show}) => {324 const listener = useFocusWithin({325 onBeforeBlurWithin,326 onBlurWithin,327 });328 return (329 <div DEPRECATED_flareListeners={listener}>330 <Suspense fallback="Loading...">331 <Child />332 </Suspense>333 </div>334 );335 };336 const container2 = document.createElement('div');337 document.body.appendChild(container2);338 let root = ReactDOM.createRoot(container2);339 root.render(<Component />);340 Scheduler.unstable_flushAll();341 jest.runAllTimers();342 expect(container2.innerHTML).toBe('<div><input></div>');343 const inner = innerRef.current;344 const target = createEventTarget(inner);345 target.keydown({key: 'Tab'});346 target.focus();347 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(0);348 expect(onBlurWithin).toHaveBeenCalledTimes(0);349 suspend = true;350 root.render(<Component />);351 Scheduler.unstable_flushAll();352 jest.runAllTimers();353 expect(container2.innerHTML).toBe(354 '<div><input style="display: none;">Loading...</div>',355 );356 expect(onBeforeBlurWithin).toHaveBeenCalledTimes(1);357 expect(onBlurWithin).toHaveBeenCalledTimes(1);358 resolve();359 document.body.removeChild(container2);360 },361 );362 });363 it('expect displayName to show up for event component', () => {364 expect(FocusWithinResponder.displayName).toBe('FocusWithin');365 });...
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