| 提交 | 用户 | 时间 | ||
| 58d006 | 1 | /* |
| A | 2 | * jQuery Mobile v1.4.5 |
| 3 | * http://jquerymobile.com | |
| 4 | * | |
| 5 | * Copyright 2010, 2014 jQuery Foundation, Inc. and other contributors | |
| 6 | * Released under the MIT license. | |
| 7 | * http://jquery.org/license | |
| 8 | * | |
| 9 | */ | |
| 10 | ||
| 11 | (function ( root, doc, factory ) { | |
| 12 | if ( typeof define === "function" && define.amd ) { | |
| 13 | // AMD. Register as an anonymous module. | |
| 14 | define( [ "jquery" ], function ( $ ) { | |
| 15 | factory( $, root, doc ); | |
| 16 | return $.mobile; | |
| 17 | }); | |
| 18 | } else { | |
| 19 | // Browser globals | |
| 20 | factory( root.jQuery, root, doc ); | |
| 21 | } | |
| 22 | }( this, document, function ( jQuery, window, document, undefined ) {// This plugin is an experiment for abstracting away the touch and mouse | |
| 23 | // events so that developers don't have to worry about which method of input | |
| 24 | // the device their document is loaded on supports. | |
| 25 | // | |
| 26 | // The idea here is to allow the developer to register listeners for the | |
| 27 | // basic mouse events, such as mousedown, mousemove, mouseup, and click, | |
| 28 | // and the plugin will take care of registering the correct listeners | |
| 29 | // behind the scenes to invoke the listener at the fastest possible time | |
| 30 | // for that device, while still retaining the order of event firing in | |
| 31 | // the traditional mouse environment, should multiple handlers be registered | |
| 32 | // on the same element for different events. | |
| 33 | // | |
| 34 | // The current version exposes the following virtual events to jQuery bind methods: | |
| 35 | // "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel" | |
| 36 | ||
| 37 | (function( $, window, document, undefined ) { | |
| 38 | ||
| 39 | var dataPropertyName = "virtualMouseBindings", | |
| 40 | touchTargetPropertyName = "virtualTouchID", | |
| 41 | virtualEventNames = "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel".split( " " ), | |
| 42 | touchEventProps = "clientX clientY pageX pageY screenX screenY".split( " " ), | |
| 43 | mouseHookProps = $.event.mouseHooks ? $.event.mouseHooks.props : [], | |
| 44 | mouseEventProps = $.event.props.concat( mouseHookProps ), | |
| 45 | activeDocHandlers = {}, | |
| 46 | resetTimerID = 0, | |
| 47 | startX = 0, | |
| 48 | startY = 0, | |
| 49 | didScroll = false, | |
| 50 | clickBlockList = [], | |
| 51 | blockMouseTriggers = false, | |
| 52 | blockTouchTriggers = false, | |
| 53 | eventCaptureSupported = "addEventListener" in document, | |
| 54 | $document = $( document ), | |
| 55 | nextTouchID = 1, | |
| 56 | lastTouchID = 0, threshold, | |
| 57 | i; | |
| 58 | ||
| 59 | $.vmouse = { | |
| 60 | moveDistanceThreshold: 10, | |
| 61 | clickDistanceThreshold: 10, | |
| 62 | resetTimerDuration: 1500 | |
| 63 | }; | |
| 64 | ||
| 65 | function getNativeEvent( event ) { | |
| 66 | ||
| 67 | while ( event && typeof event.originalEvent !== "undefined" ) { | |
| 68 | event = event.originalEvent; | |
| 69 | } | |
| 70 | return event; | |
| 71 | } | |
| 72 | ||
| 73 | function createVirtualEvent( event, eventType ) { | |
| 74 | ||
| 75 | var t = event.type, | |
| 76 | oe, props, ne, prop, ct, touch, i, j, len; | |
| 77 | ||
| 78 | event = $.Event( event ); | |
| 79 | event.type = eventType; | |
| 80 | ||
| 81 | oe = event.originalEvent; | |
| 82 | props = $.event.props; | |
| 83 | ||
| 84 | // addresses separation of $.event.props in to $.event.mouseHook.props and Issue 3280 | |
| 85 | // https://github.com/jquery/jquery-mobile/issues/3280 | |
| 86 | if ( t.search( /^(mouse|click)/ ) > -1 ) { | |
| 87 | props = mouseEventProps; | |
| 88 | } | |
| 89 | ||
| 90 | // copy original event properties over to the new event | |
| 91 | // this would happen if we could call $.event.fix instead of $.Event | |
| 92 | // but we don't have a way to force an event to be fixed multiple times | |
| 93 | if ( oe ) { | |
| 94 | for ( i = props.length, prop; i; ) { | |
| 95 | prop = props[ --i ]; | |
| 96 | event[ prop ] = oe[ prop ]; | |
| 97 | } | |
| 98 | } | |
| 99 | ||
| 100 | // make sure that if the mouse and click virtual events are generated | |
| 101 | // without a .which one is defined | |
| 102 | if ( t.search(/mouse(down|up)|click/) > -1 && !event.which ) { | |
| 103 | event.which = 1; | |
| 104 | } | |
| 105 | ||
| 106 | if ( t.search(/^touch/) !== -1 ) { | |
| 107 | ne = getNativeEvent( oe ); | |
| 108 | t = ne.touches; | |
| 109 | ct = ne.changedTouches; | |
| 110 | touch = ( t && t.length ) ? t[0] : ( ( ct && ct.length ) ? ct[ 0 ] : undefined ); | |
| 111 | ||
| 112 | if ( touch ) { | |
| 113 | for ( j = 0, len = touchEventProps.length; j < len; j++) { | |
| 114 | prop = touchEventProps[ j ]; | |
| 115 | event[ prop ] = touch[ prop ]; | |
| 116 | } | |
| 117 | } | |
| 118 | } | |
| 119 | ||
| 120 | return event; | |
| 121 | } | |
| 122 | ||
| 123 | function getVirtualBindingFlags( element ) { | |
| 124 | ||
| 125 | var flags = {}, | |
| 126 | b, k; | |
| 127 | ||
| 128 | while ( element ) { | |
| 129 | ||
| 130 | b = $.data( element, dataPropertyName ); | |
| 131 | ||
| 132 | for ( k in b ) { | |
| 133 | if ( b[ k ] ) { | |
| 134 | flags[ k ] = flags.hasVirtualBinding = true; | |
| 135 | } | |
| 136 | } | |
| 137 | element = element.parentNode; | |
| 138 | } | |
| 139 | return flags; | |
| 140 | } | |
| 141 | ||
| 142 | function getClosestElementWithVirtualBinding( element, eventType ) { | |
| 143 | var b; | |
| 144 | while ( element ) { | |
| 145 | ||
| 146 | b = $.data( element, dataPropertyName ); | |
| 147 | ||
| 148 | if ( b && ( !eventType || b[ eventType ] ) ) { | |
| 149 | return element; | |
| 150 | } | |
| 151 | element = element.parentNode; | |
| 152 | } | |
| 153 | return null; | |
| 154 | } | |
| 155 | ||
| 156 | function enableTouchBindings() { | |
| 157 | blockTouchTriggers = false; | |
| 158 | } | |
| 159 | ||
| 160 | function disableTouchBindings() { | |
| 161 | blockTouchTriggers = true; | |
| 162 | } | |
| 163 | ||
| 164 | function enableMouseBindings() { | |
| 165 | lastTouchID = 0; | |
| 166 | clickBlockList.length = 0; | |
| 167 | blockMouseTriggers = false; | |
| 168 | ||
| 169 | // When mouse bindings are enabled, our | |
| 170 | // touch bindings are disabled. | |
| 171 | disableTouchBindings(); | |
| 172 | } | |
| 173 | ||
| 174 | function disableMouseBindings() { | |
| 175 | // When mouse bindings are disabled, our | |
| 176 | // touch bindings are enabled. | |
| 177 | enableTouchBindings(); | |
| 178 | } | |
| 179 | ||
| 180 | function startResetTimer() { | |
| 181 | clearResetTimer(); | |
| 182 | resetTimerID = setTimeout( function() { | |
| 183 | resetTimerID = 0; | |
| 184 | enableMouseBindings(); | |
| 185 | }, $.vmouse.resetTimerDuration ); | |
| 186 | } | |
| 187 | ||
| 188 | function clearResetTimer() { | |
| 189 | if ( resetTimerID ) { | |
| 190 | clearTimeout( resetTimerID ); | |
| 191 | resetTimerID = 0; | |
| 192 | } | |
| 193 | } | |
| 194 | ||
| 195 | function triggerVirtualEvent( eventType, event, flags ) { | |
| 196 | var ve; | |
| 197 | ||
| 198 | if ( ( flags && flags[ eventType ] ) || | |
| 199 | ( !flags && getClosestElementWithVirtualBinding( event.target, eventType ) ) ) { | |
| 200 | ||
| 201 | ve = createVirtualEvent( event, eventType ); | |
| 202 | ||
| 203 | $( event.target).trigger( ve ); | |
| 204 | } | |
| 205 | ||
| 206 | return ve; | |
| 207 | } | |
| 208 | ||
| 209 | function mouseEventCallback( event ) { | |
| 210 | var touchID = $.data( event.target, touchTargetPropertyName ), | |
| 211 | ve; | |
| 212 | ||
| 213 | if ( !blockMouseTriggers && ( !lastTouchID || lastTouchID !== touchID ) ) { | |
| 214 | ve = triggerVirtualEvent( "v" + event.type, event ); | |
| 215 | if ( ve ) { | |
| 216 | if ( ve.isDefaultPrevented() ) { | |
| 217 | event.preventDefault(); | |
| 218 | } | |
| 219 | if ( ve.isPropagationStopped() ) { | |
| 220 | event.stopPropagation(); | |
| 221 | } | |
| 222 | if ( ve.isImmediatePropagationStopped() ) { | |
| 223 | event.stopImmediatePropagation(); | |
| 224 | } | |
| 225 | } | |
| 226 | } | |
| 227 | } | |
| 228 | ||
| 229 | function handleTouchStart( event ) { | |
| 230 | ||
| 231 | var touches = getNativeEvent( event ).touches, | |
| 232 | target, flags, t; | |
| 233 | ||
| 234 | if ( touches && touches.length === 1 ) { | |
| 235 | ||
| 236 | target = event.target; | |
| 237 | flags = getVirtualBindingFlags( target ); | |
| 238 | ||
| 239 | if ( flags.hasVirtualBinding ) { | |
| 240 | ||
| 241 | lastTouchID = nextTouchID++; | |
| 242 | $.data( target, touchTargetPropertyName, lastTouchID ); | |
| 243 | ||
| 244 | clearResetTimer(); | |
| 245 | ||
| 246 | disableMouseBindings(); | |
| 247 | didScroll = false; | |
| 248 | ||
| 249 | t = getNativeEvent( event ).touches[ 0 ]; | |
| 250 | startX = t.pageX; | |
| 251 | startY = t.pageY; | |
| 252 | ||
| 253 | triggerVirtualEvent( "vmouseover", event, flags ); | |
| 254 | triggerVirtualEvent( "vmousedown", event, flags ); | |
| 255 | } | |
| 256 | } | |
| 257 | } | |
| 258 | ||
| 259 | function handleScroll( event ) { | |
| 260 | if ( blockTouchTriggers ) { | |
| 261 | return; | |
| 262 | } | |
| 263 | ||
| 264 | if ( !didScroll ) { | |
| 265 | triggerVirtualEvent( "vmousecancel", event, getVirtualBindingFlags( event.target ) ); | |
| 266 | } | |
| 267 | ||
| 268 | didScroll = true; | |
| 269 | startResetTimer(); | |
| 270 | } | |
| 271 | ||
| 272 | function handleTouchMove( event ) { | |
| 273 | if ( blockTouchTriggers ) { | |
| 274 | return; | |
| 275 | } | |
| 276 | ||
| 277 | var t = getNativeEvent( event ).touches[ 0 ], | |
| 278 | didCancel = didScroll, | |
| 279 | moveThreshold = $.vmouse.moveDistanceThreshold, | |
| 280 | flags = getVirtualBindingFlags( event.target ); | |
| 281 | ||
| 282 | didScroll = didScroll || | |
| 283 | ( Math.abs( t.pageX - startX ) > moveThreshold || | |
| 284 | Math.abs( t.pageY - startY ) > moveThreshold ); | |
| 285 | ||
| 286 | if ( didScroll && !didCancel ) { | |
| 287 | triggerVirtualEvent( "vmousecancel", event, flags ); | |
| 288 | } | |
| 289 | ||
| 290 | triggerVirtualEvent( "vmousemove", event, flags ); | |
| 291 | startResetTimer(); | |
| 292 | } | |
| 293 | ||
| 294 | function handleTouchEnd( event ) { | |
| 295 | if ( blockTouchTriggers ) { | |
| 296 | return; | |
| 297 | } | |
| 298 | ||
| 299 | disableTouchBindings(); | |
| 300 | ||
| 301 | var flags = getVirtualBindingFlags( event.target ), | |
| 302 | ve, t; | |
| 303 | triggerVirtualEvent( "vmouseup", event, flags ); | |
| 304 | ||
| 305 | if ( !didScroll ) { | |
| 306 | ve = triggerVirtualEvent( "vclick", event, flags ); | |
| 307 | if ( ve && ve.isDefaultPrevented() ) { | |
| 308 | // The target of the mouse events that follow the touchend | |
| 309 | // event don't necessarily match the target used during the | |
| 310 | // touch. This means we need to rely on coordinates for blocking | |
| 311 | // any click that is generated. | |
| 312 | t = getNativeEvent( event ).changedTouches[ 0 ]; | |
| 313 | clickBlockList.push({ | |
| 314 | touchID: lastTouchID, | |
| 315 | x: t.clientX, | |
| 316 | y: t.clientY | |
| 317 | }); | |
| 318 | ||
| 319 | // Prevent any mouse events that follow from triggering | |
| 320 | // virtual event notifications. | |
| 321 | blockMouseTriggers = true; | |
| 322 | } | |
| 323 | } | |
| 324 | triggerVirtualEvent( "vmouseout", event, flags); | |
| 325 | didScroll = false; | |
| 326 | ||
| 327 | startResetTimer(); | |
| 328 | } | |
| 329 | ||
| 330 | function hasVirtualBindings( ele ) { | |
| 331 | var bindings = $.data( ele, dataPropertyName ), | |
| 332 | k; | |
| 333 | ||
| 334 | if ( bindings ) { | |
| 335 | for ( k in bindings ) { | |
| 336 | if ( bindings[ k ] ) { | |
| 337 | return true; | |
| 338 | } | |
| 339 | } | |
| 340 | } | |
| 341 | return false; | |
| 342 | } | |
| 343 | ||
| 344 | function dummyMouseHandler() {} | |
| 345 | ||
| 346 | function getSpecialEventObject( eventType ) { | |
| 347 | var realType = eventType.substr( 1 ); | |
| 348 | ||
| 349 | return { | |
| 350 | setup: function(/* data, namespace */) { | |
| 351 | // If this is the first virtual mouse binding for this element, | |
| 352 | // add a bindings object to its data. | |
| 353 | ||
| 354 | if ( !hasVirtualBindings( this ) ) { | |
| 355 | $.data( this, dataPropertyName, {} ); | |
| 356 | } | |
| 357 | ||
| 358 | // If setup is called, we know it is the first binding for this | |
| 359 | // eventType, so initialize the count for the eventType to zero. | |
| 360 | var bindings = $.data( this, dataPropertyName ); | |
| 361 | bindings[ eventType ] = true; | |
| 362 | ||
| 363 | // If this is the first virtual mouse event for this type, | |
| 364 | // register a global handler on the document. | |
| 365 | ||
| 366 | activeDocHandlers[ eventType ] = ( activeDocHandlers[ eventType ] || 0 ) + 1; | |
| 367 | ||
| 368 | if ( activeDocHandlers[ eventType ] === 1 ) { | |
| 369 | $document.bind( realType, mouseEventCallback ); | |
| 370 | } | |
| 371 | ||
| 372 | // Some browsers, like Opera Mini, won't dispatch mouse/click events | |
| 373 | // for elements unless they actually have handlers registered on them. | |
| 374 | // To get around this, we register dummy handlers on the elements. | |
| 375 | ||
| 376 | $( this ).bind( realType, dummyMouseHandler ); | |
| 377 | ||
| 378 | // For now, if event capture is not supported, we rely on mouse handlers. | |
| 379 | if ( eventCaptureSupported ) { | |
| 380 | // If this is the first virtual mouse binding for the document, | |
| 381 | // register our touchstart handler on the document. | |
| 382 | ||
| 383 | activeDocHandlers[ "touchstart" ] = ( activeDocHandlers[ "touchstart" ] || 0) + 1; | |
| 384 | ||
| 385 | if ( activeDocHandlers[ "touchstart" ] === 1 ) { | |
| 386 | $document.bind( "touchstart", handleTouchStart ) | |
| 387 | .bind( "touchend", handleTouchEnd ) | |
| 388 | ||
| 389 | // On touch platforms, touching the screen and then dragging your finger | |
| 390 | // causes the window content to scroll after some distance threshold is | |
| 391 | // exceeded. On these platforms, a scroll prevents a click event from being | |
| 392 | // dispatched, and on some platforms, even the touchend is suppressed. To | |
| 393 | // mimic the suppression of the click event, we need to watch for a scroll | |
| 394 | // event. Unfortunately, some platforms like iOS don't dispatch scroll | |
| 395 | // events until *AFTER* the user lifts their finger (touchend). This means | |
| 396 | // we need to watch both scroll and touchmove events to figure out whether | |
| 397 | // or not a scroll happenens before the touchend event is fired. | |
| 398 | ||
| 399 | .bind( "touchmove", handleTouchMove ) | |
| 400 | .bind( "scroll", handleScroll ); | |
| 401 | } | |
| 402 | } | |
| 403 | }, | |
| 404 | ||
| 405 | teardown: function(/* data, namespace */) { | |
| 406 | // If this is the last virtual binding for this eventType, | |
| 407 | // remove its global handler from the document. | |
| 408 | ||
| 409 | --activeDocHandlers[ eventType ]; | |
| 410 | ||
| 411 | if ( !activeDocHandlers[ eventType ] ) { | |
| 412 | $document.unbind( realType, mouseEventCallback ); | |
| 413 | } | |
| 414 | ||
| 415 | if ( eventCaptureSupported ) { | |
| 416 | // If this is the last virtual mouse binding in existence, | |
| 417 | // remove our document touchstart listener. | |
| 418 | ||
| 419 | --activeDocHandlers[ "touchstart" ]; | |
| 420 | ||
| 421 | if ( !activeDocHandlers[ "touchstart" ] ) { | |
| 422 | $document.unbind( "touchstart", handleTouchStart ) | |
| 423 | .unbind( "touchmove", handleTouchMove ) | |
| 424 | .unbind( "touchend", handleTouchEnd ) | |
| 425 | .unbind( "scroll", handleScroll ); | |
| 426 | } | |
| 427 | } | |
| 428 | ||
| 429 | var $this = $( this ), | |
| 430 | bindings = $.data( this, dataPropertyName ); | |
| 431 | ||
| 432 | // teardown may be called when an element was | |
| 433 | // removed from the DOM. If this is the case, | |
| 434 | // jQuery core may have already stripped the element | |
| 435 | // of any data bindings so we need to check it before | |
| 436 | // using it. | |
| 437 | if ( bindings ) { | |
| 438 | bindings[ eventType ] = false; | |
| 439 | } | |
| 440 | ||
| 441 | // Unregister the dummy event handler. | |
| 442 | ||
| 443 | $this.unbind( realType, dummyMouseHandler ); | |
| 444 | ||
| 445 | // If this is the last virtual mouse binding on the | |
| 446 | // element, remove the binding data from the element. | |
| 447 | ||
| 448 | if ( !hasVirtualBindings( this ) ) { | |
| 449 | $this.removeData( dataPropertyName ); | |
| 450 | } | |
| 451 | } | |
| 452 | }; | |
| 453 | } | |
| 454 | ||
| 455 | // Expose our custom events to the jQuery bind/unbind mechanism. | |
| 456 | ||
| 457 | for ( i = 0; i < virtualEventNames.length; i++ ) { | |
| 458 | $.event.special[ virtualEventNames[ i ] ] = getSpecialEventObject( virtualEventNames[ i ] ); | |
| 459 | } | |
| 460 | ||
| 461 | // Add a capture click handler to block clicks. | |
| 462 | // Note that we require event capture support for this so if the device | |
| 463 | // doesn't support it, we punt for now and rely solely on mouse events. | |
| 464 | if ( eventCaptureSupported ) { | |
| 465 | document.addEventListener( "click", function( e ) { | |
| 466 | var cnt = clickBlockList.length, | |
| 467 | target = e.target, | |
| 468 | x, y, ele, i, o, touchID; | |
| 469 | ||
| 470 | if ( cnt ) { | |
| 471 | x = e.clientX; | |
| 472 | y = e.clientY; | |
| 473 | threshold = $.vmouse.clickDistanceThreshold; | |
| 474 | ||
| 475 | // The idea here is to run through the clickBlockList to see if | |
| 476 | // the current click event is in the proximity of one of our | |
| 477 | // vclick events that had preventDefault() called on it. If we find | |
| 478 | // one, then we block the click. | |
| 479 | // | |
| 480 | // Why do we have to rely on proximity? | |
| 481 | // | |
| 482 | // Because the target of the touch event that triggered the vclick | |
| 483 | // can be different from the target of the click event synthesized | |
| 484 | // by the browser. The target of a mouse/click event that is synthesized | |
| 485 | // from a touch event seems to be implementation specific. For example, | |
| 486 | // some browsers will fire mouse/click events for a link that is near | |
| 487 | // a touch event, even though the target of the touchstart/touchend event | |
| 488 | // says the user touched outside the link. Also, it seems that with most | |
| 489 | // browsers, the target of the mouse/click event is not calculated until the | |
| 490 | // time it is dispatched, so if you replace an element that you touched | |
| 491 | // with another element, the target of the mouse/click will be the new | |
| 492 | // element underneath that point. | |
| 493 | // | |
| 494 | // Aside from proximity, we also check to see if the target and any | |
| 495 | // of its ancestors were the ones that blocked a click. This is necessary | |
| 496 | // because of the strange mouse/click target calculation done in the | |
| 497 | // Android 2.1 browser, where if you click on an element, and there is a | |
| 498 | // mouse/click handler on one of its ancestors, the target will be the | |
| 499 | // innermost child of the touched element, even if that child is no where | |
| 500 | // near the point of touch. | |
| 501 | ||
| 502 | ele = target; | |
| 503 | ||
| 504 | while ( ele ) { | |
| 505 | for ( i = 0; i < cnt; i++ ) { | |
| 506 | o = clickBlockList[ i ]; | |
| 507 | touchID = 0; | |
| 508 | ||
| 509 | if ( ( ele === target && Math.abs( o.x - x ) < threshold && Math.abs( o.y - y ) < threshold ) || | |
| 510 | $.data( ele, touchTargetPropertyName ) === o.touchID ) { | |
| 511 | // XXX: We may want to consider removing matches from the block list | |
| 512 | // instead of waiting for the reset timer to fire. | |
| 513 | e.preventDefault(); | |
| 514 | e.stopPropagation(); | |
| 515 | return; | |
| 516 | } | |
| 517 | } | |
| 518 | ele = ele.parentNode; | |
| 519 | } | |
| 520 | } | |
| 521 | }, true); | |
| 522 | } | |
| 523 | })( jQuery, window, document ); | |
| 524 | ||
| 525 | (function( $ ) { | |
| 526 | $.mobile = {}; | |
| 527 | }( jQuery )); | |
| 528 | ||
| 529 | (function( $, undefined ) { | |
| 530 | var support = { | |
| 531 | touch: "ontouchend" in document | |
| 532 | }; | |
| 533 | ||
| 534 | $.mobile.support = $.mobile.support || {}; | |
| 535 | $.extend( $.support, support ); | |
| 536 | $.extend( $.mobile.support, support ); | |
| 537 | }( jQuery )); | |
| 538 | ||
| 539 | ||
| 540 | (function( $, window, undefined ) { | |
| 541 | var $document = $( document ), | |
| 542 | supportTouch = $.mobile.support.touch, | |
| 543 | scrollEvent = "touchmove scroll", | |
| 544 | touchStartEvent = supportTouch ? "touchstart" : "mousedown", | |
| 545 | touchStopEvent = supportTouch ? "touchend" : "mouseup", | |
| 546 | touchMoveEvent = supportTouch ? "touchmove" : "mousemove"; | |
| 547 | ||
| 548 | // setup new event shortcuts | |
| 549 | $.each( ( "touchstart touchmove touchend " + | |
| 550 | "tap taphold " + | |
| 551 | "swipe swipeleft swiperight " + | |
| 552 | "scrollstart scrollstop" ).split( " " ), function( i, name ) { | |
| 553 | ||
| 554 | $.fn[ name ] = function( fn ) { | |
| 555 | return fn ? this.bind( name, fn ) : this.trigger( name ); | |
| 556 | }; | |
| 557 | ||
| 558 | // jQuery < 1.8 | |
| 559 | if ( $.attrFn ) { | |
| 560 | $.attrFn[ name ] = true; | |
| 561 | } | |
| 562 | }); | |
| 563 | ||
| 564 | function triggerCustomEvent( obj, eventType, event, bubble ) { | |
| 565 | var originalType = event.type; | |
| 566 | event.type = eventType; | |
| 567 | if ( bubble ) { | |
| 568 | $.event.trigger( event, undefined, obj ); | |
| 569 | } else { | |
| 570 | $.event.dispatch.call( obj, event ); | |
| 571 | } | |
| 572 | event.type = originalType; | |
| 573 | } | |
| 574 | ||
| 575 | // also handles scrollstop | |
| 576 | $.event.special.scrollstart = { | |
| 577 | ||
| 578 | enabled: true, | |
| 579 | setup: function() { | |
| 580 | ||
| 581 | var thisObject = this, | |
| 582 | $this = $( thisObject ), | |
| 583 | scrolling, | |
| 584 | timer; | |
| 585 | ||
| 586 | function trigger( event, state ) { | |
| 587 | scrolling = state; | |
| 588 | triggerCustomEvent( thisObject, scrolling ? "scrollstart" : "scrollstop", event ); | |
| 589 | } | |
| 590 | ||
| 591 | // iPhone triggers scroll after a small delay; use touchmove instead | |
| 592 | $this.bind( scrollEvent, function( event ) { | |
| 593 | ||
| 594 | if ( !$.event.special.scrollstart.enabled ) { | |
| 595 | return; | |
| 596 | } | |
| 597 | ||
| 598 | if ( !scrolling ) { | |
| 599 | trigger( event, true ); | |
| 600 | } | |
| 601 | ||
| 602 | clearTimeout( timer ); | |
| 603 | timer = setTimeout( function() { | |
| 604 | trigger( event, false ); | |
| 605 | }, 50 ); | |
| 606 | }); | |
| 607 | }, | |
| 608 | teardown: function() { | |
| 609 | $( this ).unbind( scrollEvent ); | |
| 610 | } | |
| 611 | }; | |
| 612 | ||
| 613 | // also handles taphold | |
| 614 | $.event.special.tap = { | |
| 615 | tapholdThreshold: 750, | |
| 616 | emitTapOnTaphold: true, | |
| 617 | setup: function() { | |
| 618 | var thisObject = this, | |
| 619 | $this = $( thisObject ), | |
| 620 | isTaphold = false; | |
| 621 | ||
| 622 | $this.bind( "vmousedown", function( event ) { | |
| 623 | isTaphold = false; | |
| 624 | if ( event.which && event.which !== 1 ) { | |
| 625 | return false; | |
| 626 | } | |
| 627 | ||
| 628 | var origTarget = event.target, | |
| 629 | timer; | |
| 630 | ||
| 631 | function clearTapTimer() { | |
| 632 | clearTimeout( timer ); | |
| 633 | } | |
| 634 | ||
| 635 | function clearTapHandlers() { | |
| 636 | clearTapTimer(); | |
| 637 | ||
| 638 | $this.unbind( "vclick", clickHandler ) | |
| 639 | .unbind( "vmouseup", clearTapTimer ); | |
| 640 | $document.unbind( "vmousecancel", clearTapHandlers ); | |
| 641 | } | |
| 642 | ||
| 643 | function clickHandler( event ) { | |
| 644 | clearTapHandlers(); | |
| 645 | ||
| 646 | // ONLY trigger a 'tap' event if the start target is | |
| 647 | // the same as the stop target. | |
| 648 | if ( !isTaphold && origTarget === event.target ) { | |
| 649 | triggerCustomEvent( thisObject, "tap", event ); | |
| 650 | } else if ( isTaphold ) { | |
| 651 | event.preventDefault(); | |
| 652 | } | |
| 653 | } | |
| 654 | ||
| 655 | $this.bind( "vmouseup", clearTapTimer ) | |
| 656 | .bind( "vclick", clickHandler ); | |
| 657 | $document.bind( "vmousecancel", clearTapHandlers ); | |
| 658 | ||
| 659 | timer = setTimeout( function() { | |
| 660 | if ( !$.event.special.tap.emitTapOnTaphold ) { | |
| 661 | isTaphold = true; | |
| 662 | } | |
| 663 | triggerCustomEvent( thisObject, "taphold", $.Event( "taphold", { target: origTarget } ) ); | |
| 664 | }, $.event.special.tap.tapholdThreshold ); | |
| 665 | }); | |
| 666 | }, | |
| 667 | teardown: function() { | |
| 668 | $( this ).unbind( "vmousedown" ).unbind( "vclick" ).unbind( "vmouseup" ); | |
| 669 | $document.unbind( "vmousecancel" ); | |
| 670 | } | |
| 671 | }; | |
| 672 | ||
| 673 | // Also handles swipeleft, swiperight | |
| 674 | $.event.special.swipe = { | |
| 675 | ||
| 676 | // More than this horizontal displacement, and we will suppress scrolling. | |
| 677 | scrollSupressionThreshold: 30, | |
| 678 | ||
| 679 | // More time than this, and it isn't a swipe. | |
| 680 | durationThreshold: 1000, | |
| 681 | ||
| 682 | // Swipe horizontal displacement must be more than this. | |
| 683 | horizontalDistanceThreshold: 30, | |
| 684 | ||
| 685 | // Swipe vertical displacement must be less than this. | |
| 686 | verticalDistanceThreshold: 30, | |
| 687 | ||
| 688 | getLocation: function ( event ) { | |
| 689 | var winPageX = window.pageXOffset, | |
| 690 | winPageY = window.pageYOffset, | |
| 691 | x = event.clientX, | |
| 692 | y = event.clientY; | |
| 693 | ||
| 694 | if ( event.pageY === 0 && Math.floor( y ) > Math.floor( event.pageY ) || | |
| 695 | event.pageX === 0 && Math.floor( x ) > Math.floor( event.pageX ) ) { | |
| 696 | ||
| 697 | // iOS4 clientX/clientY have the value that should have been | |
| 698 | // in pageX/pageY. While pageX/page/ have the value 0 | |
| 699 | x = x - winPageX; | |
| 700 | y = y - winPageY; | |
| 701 | } else if ( y < ( event.pageY - winPageY) || x < ( event.pageX - winPageX ) ) { | |
| 702 | ||
| 703 | // Some Android browsers have totally bogus values for clientX/Y | |
| 704 | // when scrolling/zooming a page. Detectable since clientX/clientY | |
| 705 | // should never be smaller than pageX/pageY minus page scroll | |
| 706 | x = event.pageX - winPageX; | |
| 707 | y = event.pageY - winPageY; | |
| 708 | } | |
| 709 | ||
| 710 | return { | |
| 711 | x: x, | |
| 712 | y: y | |
| 713 | }; | |
| 714 | }, | |
| 715 | ||
| 716 | start: function( event ) { | |
| 717 | var data = event.originalEvent.touches ? | |
| 718 | event.originalEvent.touches[ 0 ] : event, | |
| 719 | location = $.event.special.swipe.getLocation( data ); | |
| 720 | return { | |
| 721 | time: ( new Date() ).getTime(), | |
| 722 | coords: [ location.x, location.y ], | |
| 723 | origin: $( event.target ) | |
| 724 | }; | |
| 725 | }, | |
| 726 | ||
| 727 | stop: function( event ) { | |
| 728 | var data = event.originalEvent.touches ? | |
| 729 | event.originalEvent.touches[ 0 ] : event, | |
| 730 | location = $.event.special.swipe.getLocation( data ); | |
| 731 | return { | |
| 732 | time: ( new Date() ).getTime(), | |
| 733 | coords: [ location.x, location.y ] | |
| 734 | }; | |
| 735 | }, | |
| 736 | ||
| 737 | handleSwipe: function( start, stop, thisObject, origTarget ) { | |
| 738 | if ( stop.time - start.time < $.event.special.swipe.durationThreshold && | |
| 739 | Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.horizontalDistanceThreshold && | |
| 740 | Math.abs( start.coords[ 1 ] - stop.coords[ 1 ] ) < $.event.special.swipe.verticalDistanceThreshold ) { | |
| 741 | var direction = start.coords[0] > stop.coords[ 0 ] ? "swipeleft" : "swiperight"; | |
| 742 | ||
| 743 | triggerCustomEvent( thisObject, "swipe", $.Event( "swipe", { target: origTarget, swipestart: start, swipestop: stop }), true ); | |
| 744 | triggerCustomEvent( thisObject, direction,$.Event( direction, { target: origTarget, swipestart: start, swipestop: stop } ), true ); | |
| 745 | return true; | |
| 746 | } | |
| 747 | return false; | |
| 748 | ||
| 749 | }, | |
| 750 | ||
| 751 | // This serves as a flag to ensure that at most one swipe event event is | |
| 752 | // in work at any given time | |
| 753 | eventInProgress: false, | |
| 754 | ||
| 755 | setup: function() { | |
| 756 | var events, | |
| 757 | thisObject = this, | |
| 758 | $this = $( thisObject ), | |
| 759 | context = {}; | |
| 760 | ||
| 761 | // Retrieve the events data for this element and add the swipe context | |
| 762 | events = $.data( this, "mobile-events" ); | |
| 763 | if ( !events ) { | |
| 764 | events = { length: 0 }; | |
| 765 | $.data( this, "mobile-events", events ); | |
| 766 | } | |
| 767 | events.length++; | |
| 768 | events.swipe = context; | |
| 769 | ||
| 770 | context.start = function( event ) { | |
| 771 | ||
| 772 | // Bail if we're already working on a swipe event | |
| 773 | if ( $.event.special.swipe.eventInProgress ) { | |
| 774 | return; | |
| 775 | } | |
| 776 | $.event.special.swipe.eventInProgress = true; | |
| 777 | ||
| 778 | var stop, | |
| 779 | start = $.event.special.swipe.start( event ), | |
| 780 | origTarget = event.target, | |
| 781 | emitted = false; | |
| 782 | ||
| 783 | context.move = function( event ) { | |
| 784 | if ( !start || event.isDefaultPrevented() ) { | |
| 785 | return; | |
| 786 | } | |
| 787 | ||
| 788 | stop = $.event.special.swipe.stop( event ); | |
| 789 | if ( !emitted ) { | |
| 790 | emitted = $.event.special.swipe.handleSwipe( start, stop, thisObject, origTarget ); | |
| 791 | if ( emitted ) { | |
| 792 | ||
| 793 | // Reset the context to make way for the next swipe event | |
| 794 | $.event.special.swipe.eventInProgress = false; | |
| 795 | } | |
| 796 | } | |
| 797 | // prevent scrolling | |
| 798 | if ( Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.scrollSupressionThreshold ) { | |
| 799 | event.preventDefault(); | |
| 800 | } | |
| 801 | }; | |
| 802 | ||
| 803 | context.stop = function() { | |
| 804 | emitted = true; | |
| 805 | ||
| 806 | // Reset the context to make way for the next swipe event | |
| 807 | $.event.special.swipe.eventInProgress = false; | |
| 808 | $document.off( touchMoveEvent, context.move ); | |
| 809 | context.move = null; | |
| 810 | }; | |
| 811 | ||
| 812 | $document.on( touchMoveEvent, context.move ) | |
| 813 | .one( touchStopEvent, context.stop ); | |
| 814 | }; | |
| 815 | $this.on( touchStartEvent, context.start ); | |
| 816 | }, | |
| 817 | ||
| 818 | teardown: function() { | |
| 819 | var events, context; | |
| 820 | ||
| 821 | events = $.data( this, "mobile-events" ); | |
| 822 | if ( events ) { | |
| 823 | context = events.swipe; | |
| 824 | delete events.swipe; | |
| 825 | events.length--; | |
| 826 | if ( events.length === 0 ) { | |
| 827 | $.removeData( this, "mobile-events" ); | |
| 828 | } | |
| 829 | } | |
| 830 | ||
| 831 | if ( context ) { | |
| 832 | if ( context.start ) { | |
| 833 | $( this ).off( touchStartEvent, context.start ); | |
| 834 | } | |
| 835 | if ( context.move ) { | |
| 836 | $document.off( touchMoveEvent, context.move ); | |
| 837 | } | |
| 838 | if ( context.stop ) { | |
| 839 | $document.off( touchStopEvent, context.stop ); | |
| 840 | } | |
| 841 | } | |
| 842 | } | |
| 843 | }; | |
| 844 | $.each({ | |
| 845 | scrollstop: "scrollstart", | |
| 846 | taphold: "tap", | |
| 847 | swipeleft: "swipe.left", | |
| 848 | swiperight: "swipe.right" | |
| 849 | }, function( event, sourceEvent ) { | |
| 850 | ||
| 851 | $.event.special[ event ] = { | |
| 852 | setup: function() { | |
| 853 | $( this ).bind( sourceEvent, $.noop ); | |
| 854 | }, | |
| 855 | teardown: function() { | |
| 856 | $( this ).unbind( sourceEvent ); | |
| 857 | } | |
| 858 | }; | |
| 859 | }); | |
| 860 | ||
| 861 | })( jQuery, this ); | |
| 862 | ||
| 863 | ||
| 864 | })); | |
