esprima
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ECMAScript parsing infrastructure for multipurpose analysis
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JavaScript
/*
* jQuery Mobile Framework 1.0
* http://jquerymobile.com
*
* Copyright 2011 (c) jQuery Project
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
*/
/*!
* jQuery UI Widget @VERSION
*
* Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Widget
*/
(function( $, undefined ) {
// jQuery 1.4+
if ( $.cleanData ) {
var _cleanData = $.cleanData;
$.cleanData = function( elems ) {
for ( var i = 0, elem; (elem = elems[i]) != null; i++ ) {
$( elem ).triggerHandler( "remove" );
}
_cleanData( elems );
};
} else {
var _remove = $.fn.remove;
$.fn.remove = function( selector, keepData ) {
return this.each(function() {
if ( !keepData ) {
if ( !selector || $.filter( selector, [ this ] ).length ) {
$( "*", this ).add( [ this ] ).each(function() {
$( this ).triggerHandler( "remove" );
});
}
}
return _remove.call( $(this), selector, keepData );
});
};
}
$.widget = function( name, base, prototype ) {
var namespace = name.split( "." )[ 0 ],
fullName;
name = name.split( "." )[ 1 ];
fullName = namespace + "-" + name;
if ( !prototype ) {
prototype = base;
base = $.Widget;
}
// create selector for plugin
$.expr[ ":" ][ fullName ] = function( elem ) {
return !!$.data( elem, name );
};
$[ namespace ] = $[ namespace ] || {};
$[ namespace ][ name ] = function( options, element ) {
// allow instantiation without initializing for simple inheritance
if ( arguments.length ) {
this._createWidget( options, element );
}
};
var basePrototype = new base();
// we need to make the options hash a property directly on the new instance
// otherwise we'll modify the options hash on the prototype that we're
// inheriting from
// $.each( basePrototype, function( key, val ) {
// if ( $.isPlainObject(val) ) {
// basePrototype[ key ] = $.extend( {}, val );
// }
// });
basePrototype.options = $.extend( true, {}, basePrototype.options );
$[ namespace ][ name ].prototype = $.extend( true, basePrototype, {
namespace: namespace,
widgetName: name,
widgetEventPrefix: $[ namespace ][ name ].prototype.widgetEventPrefix || name,
widgetBaseClass: fullName
}, prototype );
$.widget.bridge( name, $[ namespace ][ name ] );
};
$.widget.bridge = function( name, object ) {
$.fn[ name ] = function( options ) {
var isMethodCall = typeof options === "string",
args = Array.prototype.slice.call( arguments, 1 ),
returnValue = this;
// allow multiple hashes to be passed on init
options = !isMethodCall && args.length ?
$.extend.apply( null, [ true, options ].concat(args) ) :
options;
// prevent calls to internal methods
if ( isMethodCall && options.charAt( 0 ) === "_" ) {
return returnValue;
}
if ( isMethodCall ) {
this.each(function() {
var instance = $.data( this, name );
if ( !instance ) {
throw "cannot call methods on " + name + " prior to initialization; " +
"attempted to call method '" + options + "'";
}
if ( !$.isFunction( instance[options] ) ) {
throw "no such method '" + options + "' for " + name + " widget instance";
}
var methodValue = instance[ options ].apply( instance, args );
if ( methodValue !== instance && methodValue !== undefined ) {
returnValue = methodValue;
return false;
}
});
} else {
this.each(function() {
var instance = $.data( this, name );
if ( instance ) {
instance.option( options || {} )._init();
} else {
$.data( this, name, new object( options, this ) );
}
});
}
return returnValue;
};
};
$.Widget = function( options, element ) {
// allow instantiation without initializing for simple inheritance
if ( arguments.length ) {
this._createWidget( options, element );
}
};
$.Widget.prototype = {
widgetName: "widget",
widgetEventPrefix: "",
options: {
disabled: false
},
_createWidget: function( options, element ) {
// $.widget.bridge stores the plugin instance, but we do it anyway
// so that it's stored even before the _create function runs
$.data( element, this.widgetName, this );
this.element = $( element );
this.options = $.extend( true, {},
this.options,
this._getCreateOptions(),
options );
var self = this;
this.element.bind( "remove." + this.widgetName, function() {
self.destroy();
});
this._create();
this._trigger( "create" );
this._init();
},
_getCreateOptions: function() {
var options = {};
if ( $.metadata ) {
options = $.metadata.get( element )[ this.widgetName ];
}
return options;
},
_create: function() {},
_init: function() {},
destroy: function() {
this.element
.unbind( "." + this.widgetName )
.removeData( this.widgetName );
this.widget()
.unbind( "." + this.widgetName )
.removeAttr( "aria-disabled" )
.removeClass(
this.widgetBaseClass + "-disabled " +
"ui-state-disabled" );
},
widget: function() {
return this.element;
},
option: function( key, value ) {
var options = key;
if ( arguments.length === 0 ) {
// don't return a reference to the internal hash
return $.extend( {}, this.options );
}
if (typeof key === "string" ) {
if ( value === undefined ) {
return this.options[ key ];
}
options = {};
options[ key ] = value;
}
this._setOptions( options );
return this;
},
_setOptions: function( options ) {
var self = this;
$.each( options, function( key, value ) {
self._setOption( key, value );
});
return this;
},
_setOption: function( key, value ) {
this.options[ key ] = value;
if ( key === "disabled" ) {
this.widget()
[ value ? "addClass" : "removeClass"](
this.widgetBaseClass + "-disabled" + " " +
"ui-state-disabled" )
.attr( "aria-disabled", value );
}
return this;
},
enable: function() {
return this._setOption( "disabled", false );
},
disable: function() {
return this._setOption( "disabled", true );
},
_trigger: function( type, event, data ) {
var callback = this.options[ type ];
event = $.Event( event );
event.type = ( type === this.widgetEventPrefix ?
type :
this.widgetEventPrefix + type ).toLowerCase();
data = data || {};
// copy original event properties over to the new event
// this would happen if we could call $.event.fix instead of $.Event
// but we don't have a way to force an event to be fixed multiple times
if ( event.originalEvent ) {
for ( var i = $.event.props.length, prop; i; ) {
prop = $.event.props[ --i ];
event[ prop ] = event.originalEvent[ prop ];
}
}
this.element.trigger( event, data );
return !( $.isFunction(callback) &&
callback.call( this.element[0], event, data ) === false ||
event.isDefaultPrevented() );
}
};
})( jQuery );
/*
* widget factory extentions for mobile
*/
(function( $, undefined ) {
$.widget( "mobile.widget", {
// decorate the parent _createWidget to trigger `widgetinit` for users
// who wish to do post post `widgetcreate` alterations/additions
//
// TODO create a pull request for jquery ui to trigger this event
// in the original _createWidget
_createWidget: function() {
$.Widget.prototype._createWidget.apply( this, arguments );
this._trigger( 'init' );
},
_getCreateOptions: function() {
var elem = this.element,
options = {};
$.each( this.options, function( option ) {
var value = elem.jqmData( option.replace( /[A-Z]/g, function( c ) {
return "-" + c.toLowerCase();
})
);
if ( value !== undefined ) {
options[ option ] = value;
}
});
return options;
},
enhanceWithin: function( target ) {
// TODO remove dependency on the page widget for the keepNative.
// Currently the keepNative value is defined on the page prototype so
// the method is as well
var page = $(target).closest(":jqmData(role='page')").data( "page" ),
keepNative = (page && page.keepNativeSelector()) || "";
$( this.options.initSelector, target ).not( keepNative )[ this.widgetName ]();
}
});
})( jQuery );
/*
* a workaround for window.matchMedia
*/
(function( $, undefined ) {
var $window = $( window ),
$html = $( "html" );
/* $.mobile.media method: pass a CSS media type or query and get a bool return
note: this feature relies on actual media query support for media queries, though types will work most anywhere
examples:
$.mobile.media('screen') //>> tests for screen media type
$.mobile.media('screen and (min-width: 480px)') //>> tests for screen media type with window width > 480px
$.mobile.media('@media screen and (-webkit-min-device-pixel-ratio: 2)') //>> tests for webkit 2x pixel ratio (iPhone 4)
*/
$.mobile.media = (function() {
// TODO: use window.matchMedia once at least one UA implements it
var cache = {},
testDiv = $( "<div id='jquery-mediatest'>" ),
fakeBody = $( "<body>" ).append( testDiv );
return function( query ) {
if ( !( query in cache ) ) {
var styleBlock = document.createElement( "style" ),
cssrule = "@media " + query + " { #jquery-mediatest { position:absolute; } }";
//must set type for IE!
styleBlock.type = "text/css";
if ( styleBlock.styleSheet ){
styleBlock.styleSheet.cssText = cssrule;
} else {
styleBlock.appendChild( document.createTextNode(cssrule) );
}
$html.prepend( fakeBody ).prepend( styleBlock );
cache[ query ] = testDiv.css( "position" ) === "absolute";
fakeBody.add( styleBlock ).remove();
}
return cache[ query ];
};
})();
})(jQuery);
/*
* support tests
*/
(function( $, undefined ) {
var fakeBody = $( "<body>" ).prependTo( "html" ),
fbCSS = fakeBody[ 0 ].style,
vendors = [ "Webkit", "Moz", "O" ],
webos = "palmGetResource" in window, //only used to rule out scrollTop
operamini = window.operamini && ({}).toString.call( window.operamini ) === "[object OperaMini]",
bb = window.blackberry; //only used to rule out box shadow, as it's filled opaque on BB
// thx Modernizr
function propExists( prop ) {
var uc_prop = prop.charAt( 0 ).toUpperCase() + prop.substr( 1 ),
props = ( prop + " " + vendors.join( uc_prop + " " ) + uc_prop ).split( " " );
for ( var v in props ){
if ( fbCSS[ props[ v ] ] !== undefined ) {
return true;
}
}
}
// Test for dynamic-updating base tag support ( allows us to avoid href,src attr rewriting )
function baseTagTest() {
var fauxBase = location.protocol + "//" + location.host + location.pathname + "ui-dir/",
base = $( "head base" ),
fauxEle = null,
href = "",
link, rebase;
if ( !base.length ) {
base = fauxEle = $( "<base>", { "href": fauxBase }).appendTo( "head" );
} else {
href = base.attr( "href" );
}
link = $( "<a href='testurl' />" ).prependTo( fakeBody );
rebase = link[ 0 ].href;
base[ 0 ].href = href || location.pathname;
if ( fauxEle ) {
fauxEle.remove();
}
return rebase.indexOf( fauxBase ) === 0;
}
// non-UA-based IE version check by James Padolsey, modified by jdalton - from http://gist.github.com/527683
// allows for inclusion of IE 6+, including Windows Mobile 7
$.mobile.browser = {};
$.mobile.browser.ie = (function() {
var v = 3,
div = document.createElement( "div" ),
a = div.all || [];
while ( div.innerHTML = "<!--[if gt IE " + ( ++v ) + "]><br><![endif]-->", a[ 0 ] );
return v > 4 ? v : !v;
})();
$.extend( $.support, {
orientation: "orientation" in window && "onorientationchange" in window,
touch: "ontouchend" in document,
cssTransitions: "WebKitTransitionEvent" in window,
pushState: "pushState" in history && "replaceState" in history,
mediaquery: $.mobile.media( "only all" ),
cssPseudoElement: !!propExists( "content" ),
touchOverflow: !!propExists( "overflowScrolling" ),
boxShadow: !!propExists( "boxShadow" ) && !bb,
scrollTop: ( "pageXOffset" in window || "scrollTop" in document.documentElement || "scrollTop" in fakeBody[ 0 ] ) && !webos && !operamini,
dynamicBaseTag: baseTagTest()
});
fakeBody.remove();
// $.mobile.ajaxBlacklist is used to override ajaxEnabled on platforms that have known conflicts with hash history updates (BB5, Symbian)
// or that generally work better browsing in regular http for full page refreshes (Opera Mini)
// Note: This detection below is used as a last resort.
// We recommend only using these detection methods when all other more reliable/forward-looking approaches are not possible
var nokiaLTE7_3 = (function(){
var ua = window.navigator.userAgent;
//The following is an attempt to match Nokia browsers that are running Symbian/s60, with webkit, version 7.3 or older
return ua.indexOf( "Nokia" ) > -1 &&
( ua.indexOf( "Symbian/3" ) > -1 || ua.indexOf( "Series60/5" ) > -1 ) &&
ua.indexOf( "AppleWebKit" ) > -1 &&
ua.match( /(BrowserNG|NokiaBrowser)\/7\.[0-3]/ );
})();
$.mobile.ajaxBlacklist =
// BlackBerry browsers, pre-webkit
window.blackberry && !window.WebKitPoint ||
// Opera Mini
operamini ||
// Symbian webkits pre 7.3
nokiaLTE7_3;
// Lastly, this workaround is the only way we've found so far to get pre 7.3 Symbian webkit devices
// to render the stylesheets when they're referenced before this script, as we'd recommend doing.
// This simply reappends the CSS in place, which for some reason makes it apply
if ( nokiaLTE7_3 ) {
$(function() {
$( "head link[rel='stylesheet']" ).attr( "rel", "alternate stylesheet" ).attr( "rel", "stylesheet" );
});
}
// For ruling out shadows via css
if ( !$.support.boxShadow ) {
$( "html" ).addClass( "ui-mobile-nosupport-boxshadow" );
}
})( jQuery );
/*
* "mouse" plugin
*/
// This plugin is an experiment for abstracting away the touch and mouse
// events so that developers don't have to worry about which method of input
// the device their document is loaded on supports.
//
// The idea here is to allow the developer to register listeners for the
// basic mouse events, such as mousedown, mousemove, mouseup, and click,
// and the plugin will take care of registering the correct listeners
// behind the scenes to invoke the listener at the fastest possible time
// for that device, while still retaining the order of event firing in
// the traditional mouse environment, should multiple handlers be registered
// on the same element for different events.
//
// The current version exposes the following virtual events to jQuery bind methods:
// "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel"
(function( $, window, document, undefined ) {
var dataPropertyName = "virtualMouseBindings",
touchTargetPropertyName = "virtualTouchID",
virtualEventNames = "vmouseover vmousedown vmousemove vmouseup vclick vmouseout vmousecancel".split( " " ),
touchEventProps = "clientX clientY pageX pageY screenX screenY".split( " " ),
activeDocHandlers = {},
resetTimerID = 0,
startX = 0,
startY = 0,
didScroll = false,
clickBlockList = [],
blockMouseTriggers = false,
blockTouchTriggers = false,
eventCaptureSupported = "addEventListener" in document,
$document = $( document ),
nextTouchID = 1,
lastTouchID = 0;
$.vmouse = {
moveDistanceThreshold: 10,
clickDistanceThreshold: 10,
resetTimerDuration: 1500
};
function getNativeEvent( event ) {
while ( event && typeof event.originalEvent !== "undefined" ) {
event = event.originalEvent;
}
return event;
}
function createVirtualEvent( event, eventType ) {
var t = event.type,
oe, props, ne, prop, ct, touch, i, j;
event = $.Event(event);
event.type = eventType;
oe = event.originalEvent;
props = $.event.props;
// copy original event properties over to the new event
// this would happen if we could call $.event.fix instead of $.Event
// but we don't have a way to force an event to be fixed multiple times
if ( oe ) {
for ( i = props.length, prop; i; ) {
prop = props[ --i ];
event[ prop ] = oe[ prop ];
}
}
// make sure that if the mouse and click virtual events are generated
// without a .which one is defined
if ( t.search(/mouse(down|up)|click/) > -1 && !event.which ){
event.which = 1;
}
if ( t.search(/^touch/) !== -1 ) {
ne = getNativeEvent( oe );
t = ne.touches;
ct = ne.changedTouches;
touch = ( t && t.length ) ? t[0] : ( (ct && ct.length) ? ct[ 0 ] : undefined );
if ( touch ) {
for ( j = 0, len = touchEventProps.length; j < len; j++){
prop = touchEventProps[ j ];
event[ prop ] = touch[ prop ];
}
}
}
return event;
}
function getVirtualBindingFlags( element ) {
var flags = {},
b, k;
while ( element ) {
b = $.data( element, dataPropertyName );
for ( k in b ) {
if ( b[ k ] ) {
flags[ k ] = flags.hasVirtualBinding = true;
}
}
element = element.parentNode;
}
return flags;
}
function getClosestElementWithVirtualBinding( element, eventType ) {
var b;
while ( element ) {
b = $.data( element, dataPropertyName );
if ( b && ( !eventType || b[ eventType ] ) ) {
return element;
}
element = element.parentNode;
}
return null;
}
function enableTouchBindings() {
blockTouchTriggers = false;
}
function disableTouchBindings() {
blockTouchTriggers = true;
}
function enableMouseBindings() {
lastTouchID = 0;
clickBlockList.length = 0;
blockMouseTriggers = false;
// When mouse bindings are enabled, our
// touch bindings are disabled.
disableTouchBindings();
}
function disableMouseBindings() {
// When mouse bindings are disabled, our
// touch bindings are enabled.
enableTouchBindings();
}
function startResetTimer() {
clearResetTimer();
resetTimerID = setTimeout(function(){
resetTimerID = 0;
enableMouseBindings();
}, $.vmouse.resetTimerDuration );
}
function clearResetTimer() {
if ( resetTimerID ){
clearTimeout( resetTimerID );
resetTimerID = 0;
}
}
function triggerVirtualEvent( eventType, event, flags ) {
var ve;
if ( ( flags && flags[ eventType ] ) ||
( !flags && getClosestElementWithVirtualBinding( event.target, eventType ) ) ) {
ve = createVirtualEvent( event, eventType );
$( event.target).trigger( ve );
}
return ve;
}
function mouseEventCallback( event ) {
var touchID = $.data(event.target, touchTargetPropertyName);
if ( !blockMouseTriggers && ( !lastTouchID || lastTouchID !== touchID ) ){
var ve = triggerVirtualEvent( "v" + event.type, event );
if ( ve ) {
if ( ve.isDefaultPrevented() ) {
event.preventDefault();
}
if ( ve.isPropagationStopped() ) {
event.stopPropagation();
}
if ( ve.isImmediatePropagationStopped() ) {
event.stopImmediatePropagation();
}
}
}
}
function handleTouchStart( event ) {
var touches = getNativeEvent( event ).touches,
target, flags;
if ( touches && touches.length === 1 ) {
target = event.target;
flags = getVirtualBindingFlags( target );
if ( flags.hasVirtualBinding ) {
lastTouchID = nextTouchID++;
$.data( target, touchTargetPropertyName, lastTouchID );
clearResetTimer();
disableMouseBindings();
didScroll = false;
var t = getNativeEvent( event ).touches[ 0 ];
startX = t.pageX;
startY = t.pageY;
triggerVirtualEvent( "vmouseover", event, flags );
triggerVirtualEvent( "vmousedown", event, flags );
}
}
}
function handleScroll( event ) {
if ( blockTouchTriggers ) {
return;
}
if ( !didScroll ) {
triggerVirtualEvent( "vmousecancel", event, getVirtualBindingFlags( event.target ) );
}
didScroll = true;
startResetTimer();
}
function handleTouchMove( event ) {
if ( blockTouchTriggers ) {
return;
}
var t = getNativeEvent( event ).touches[ 0 ],
didCancel = didScroll,
moveThreshold = $.vmouse.moveDistanceThreshold;
didScroll = didScroll ||
( Math.abs(t.pageX - startX) > moveThreshold ||
Math.abs(t.pageY - startY) > moveThreshold ),
flags = getVirtualBindingFlags( event.target );
if ( didScroll && !didCancel ) {
triggerVirtualEvent( "vmousecancel", event, flags );
}
triggerVirtualEvent( "vmousemove", event, flags );
startResetTimer();
}
function handleTouchEnd( event ) {
if ( blockTouchTriggers ) {
return;
}
disableTouchBindings();
var flags = getVirtualBindingFlags( event.target ),
t;
triggerVirtualEvent( "vmouseup", event, flags );
if ( !didScroll ) {
var ve = triggerVirtualEvent( "vclick", event, flags );
if ( ve && ve.isDefaultPrevented() ) {
// The target of the mouse events that follow the touchend
// event don't necessarily match the target used during the
// touch. This means we need to rely on coordinates for blocking
// any click that is generated.
t = getNativeEvent( event ).changedTouches[ 0 ];
clickBlockList.push({
touchID: lastTouchID,
x: t.clientX,
y: t.clientY
});
// Prevent any mouse events that follow from triggering
// virtual event notifications.
blockMouseTriggers = true;
}
}
triggerVirtualEvent( "vmouseout", event, flags);
didScroll = false;
startResetTimer();
}
function hasVirtualBindings( ele ) {
var bindings = $.data( ele, dataPropertyName ),
k;
if ( bindings ) {
for ( k in bindings ) {
if ( bindings[ k ] ) {
return true;
}
}
}
return false;
}
function dummyMouseHandler(){}
function getSpecialEventObject( eventType ) {
var realType = eventType.substr( 1 );
return {
setup: function( data, namespace ) {
// If this is the first virtual mouse binding for this element,
// add a bindings object to its data.
if ( !hasVirtualBindings( this ) ) {
$.data( this, dataPropertyName, {});
}
// If setup is called, we know it is the first binding for this
// eventType, so initialize the count for the eventType to zero.
var bindings = $.data( this, dataPropertyName );
bindings[ eventType ] = true;
// If this is the first virtual mouse event for this type,
// register a global handler on the document.
activeDocHandlers[ eventType ] = ( activeDocHandlers[ eventType ] || 0 ) + 1;
if ( activeDocHandlers[ eventType ] === 1 ) {
$document.bind( realType, mouseEventCallback );
}
// Some browsers, like Opera Mini, won't dispatch mouse/click events
// for elements unless they actually have handlers registered on them.
// To get around this, we register dummy handlers on the elements.
$( this ).bind( realType, dummyMouseHandler );
// For now, if event capture is not supported, we rely on mouse handlers.
if ( eventCaptureSupported ) {
// If this is the first virtual mouse binding for the document,
// register our touchstart handler on the document.
activeDocHandlers[ "touchstart" ] = ( activeDocHandlers[ "touchstart" ] || 0) + 1;
if (activeDocHandlers[ "touchstart" ] === 1) {
$document.bind( "touchstart", handleTouchStart )
.bind( "touchend", handleTouchEnd )
// On touch platforms, touching the screen and then dragging your finger
// causes the window content to scroll after some distance threshold is
// exceeded. On these platforms, a scroll prevents a click event from being
// dispatched, and on some platforms, even the touchend is suppressed. To
// mimic the suppression of the click event, we need to watch for a scroll
// event. Unfortunately, some platforms like iOS don't dispatch scroll
// events until *AFTER* the user lifts their finger (touchend). This means
// we need to watch both scroll and touchmove events to figure out whether
// or not a scroll happenens before the touchend event is fired.
.bind( "touchmove", handleTouchMove )
.bind( "scroll", handleScroll );
}
}
},
teardown: function( data, namespace ) {
// If this is the last virtual binding for this eventType,
// remove its global handler from the document.
--activeDocHandlers[ eventType ];
if ( !activeDocHandlers[ eventType ] ) {
$document.unbind( realType, mouseEventCallback );
}
if ( eventCaptureSupported ) {
// If this is the last virtual mouse binding in existence,
// remove our document touchstart listener.
--activeDocHandlers[ "touchstart" ];
if ( !activeDocHandlers[ "touchstart" ] ) {
$document.unbind( "touchstart", handleTouchStart )
.unbind( "touchmove", handleTouchMove )
.unbind( "touchend", handleTouchEnd )
.unbind( "scroll", handleScroll );
}
}
var $this = $( this ),
bindings = $.data( this, dataPropertyName );
// teardown may be called when an element was
// removed from the DOM. If this is the case,
// jQuery core may have already stripped the element
// of any data bindings so we need to check it before
// using it.
if ( bindings ) {
bindings[ eventType ] = false;
}
// Unregister the dummy event handler.
$this.unbind( realType, dummyMouseHandler );
// If this is the last virtual mouse binding on the
// element, remove the binding data from the element.
if ( !hasVirtualBindings( this ) ) {
$this.removeData( dataPropertyName );
}
}
};
}
// Expose our custom events to the jQuery bind/unbind mechanism.
for ( var i = 0; i < virtualEventNames.length; i++ ){
$.event.special[ virtualEventNames[ i ] ] = getSpecialEventObject( virtualEventNames[ i ] );
}
// Add a capture click handler to block clicks.
// Note that we require event capture support for this so if the device
// doesn't support it, we punt for now and rely solely on mouse events.
if ( eventCaptureSupported ) {
document.addEventListener( "click", function( e ){
var cnt = clickBlockList.length,
target = e.target,
x, y, ele, i, o, touchID;
if ( cnt ) {
x = e.clientX;
y = e.clientY;
threshold = $.vmouse.clickDistanceThreshold;
// The idea here is to run through the clickBlockList to see if
// the current click event is in the proximity of one of our
// vclick events that had preventDefault() called on it. If we find
// one, then we block the click.
//
// Why do we have to rely on proximity?
//
// Because the target of the touch event that triggered the vclick
// can be different from the target of the click event synthesized
// by the browser. The target of a mouse/click event that is syntehsized
// from a touch event seems to be implementation specific. For example,
// some browsers will fire mouse/click events for a link that is near
// a touch event, even though the target of the touchstart/touchend event
// says the user touched outside the link. Also, it seems that with most
// browsers, the target of the mouse/click event is not calculated until the
// time it is dispatched, so if you replace an element that you touched
// with another element, the target of the mouse/click will be the new
// element underneath that point.
//
// Aside from proximity, we also check to see if the target and any
// of its ancestors were the ones that blocked a click. This is necessary
// because of the strange mouse/click target calculation done in the
// Android 2.1 browser, where if you click on an element, and there is a
// mouse/click handler on one of its ancestors, the target will be the
// innermost child of the touched element, even if that child is no where
// near the point of touch.
ele = target;
while ( ele ) {
for ( i = 0; i < cnt; i++ ) {
o = clickBlockList[ i ];
touchID = 0;
if ( ( ele === target && Math.abs( o.x - x ) < threshold && Math.abs( o.y - y ) < threshold ) ||
$.data( ele, touchTargetPropertyName ) === o.touchID ) {
// XXX: We may want to consider removing matches from the block list
// instead of waiting for the reset timer to fire.
e.preventDefault();
e.stopPropagation();
return;
}
}
ele = ele.parentNode;
}
}
}, true);
}
})( jQuery, window, document );
/*
* "events" plugin - Handles events
*/
(function( $, window, undefined ) {
// add new event shortcuts
$.each( ( "touchstart touchmove touchend orientationchange throttledresize " +
"tap taphold swipe swipeleft swiperight scrollstart scrollstop" ).split( " " ), function( i, name ) {
$.fn[ name ] = function( fn ) {
return fn ? this.bind( name, fn ) : this.trigger( name );
};
$.attrFn[ name ] = true;
});
var supportTouch = $.support.touch,
scrollEvent = "touchmove scroll",
touchStartEvent = supportTouch ? "touchstart" : "mousedown",
touchStopEvent = supportTouch ? "touchend" : "mouseup",
touchMoveEvent = supportTouch ? "touchmove" : "mousemove";
function triggerCustomEvent( obj, eventType, event ) {
var originalType = event.type;
event.type = eventType;
$.event.handle.call( obj, event );
event.type = originalType;
}
// also handles scrollstop
$.event.special.scrollstart = {
enabled: true,
setup: function() {
var thisObject = this,
$this = $( thisObject ),
scrolling,
timer;
function trigger( event, state ) {
scrolling = state;
triggerCustomEvent( thisObject, scrolling ? "scrollstart" : "scrollstop", event );
}
// iPhone triggers scroll after a small delay; use touchmove instead
$this.bind( scrollEvent, function( event ) {
if ( !$.event.special.scrollstart.enabled ) {
return;
}
if ( !scrolling ) {
trigger( event, true );
}
clearTimeout( timer );
timer = setTimeout(function() {
trigger( event, false );
}, 50 );
});
}
};
// also handles taphold
$.event.special.tap = {
setup: function() {
var thisObject = this,
$this = $( thisObject );
$this.bind( "vmousedown", function( event ) {
if ( event.which && event.which !== 1 ) {
return false;
}
var origTarget = event.target,
origEvent = event.originalEvent,
timer;
function clearTapTimer() {
clearTimeout( timer );
}
function clearTapHandlers() {
clearTapTimer();
$this.unbind( "vclick", clickHandler )
.unbind( "vmouseup", clearTapTimer )
.unbind( "vmousecancel", clearTapHandlers );
}
function clickHandler(event) {
clearTapHandlers();
// ONLY trigger a 'tap' event if the start target is
// the same as the stop target.
if ( origTarget == event.target ) {
triggerCustomEvent( thisObject, "tap", event );
}
}
$this.bind( "vmousecancel", clearTapHandlers )
.bind( "vmouseup", clearTapTimer )
.bind( "vclick", clickHandler );
timer = setTimeout(function() {
triggerCustomEvent( thisObject, "taphold", $.Event( "taphold" ) );
}, 750 );
});
}
};
// also handles swipeleft, swiperight
$.event.special.swipe = {
scrollSupressionThreshold: 10, // More than this horizontal displacement, and we will suppress scrolling.
durationThreshold: 1000, // More time than this, and it isn't a swipe.
horizontalDistanceThreshold: 30, // Swipe horizontal displacement must be more than this.
verticalDistanceThreshold: 75, // Swipe vertical displacement must be less than this.
setup: function() {
var thisObject = this,
$this = $( thisObject );
$this.bind( touchStartEvent, function( event ) {
var data = event.originalEvent.touches ?
event.originalEvent.touches[ 0 ] : event,
start = {
time: ( new Date() ).getTime(),
coords: [ data.pageX, data.pageY ],
origin: $( event.target )
},
stop;
function moveHandler( event ) {
if ( !start ) {
return;
}
var data = event.originalEvent.touches ?
event.originalEvent.touches[ 0 ] : event;
stop = {
time: ( new Date() ).getTime(),
coords: [ data.pageX, data.pageY ]
};
// prevent scrolling
if ( Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.scrollSupressionThreshold ) {
event.preventDefault();
}
}
$this.bind( touchMoveEvent, moveHandler )
.one( touchStopEvent, function( event ) {
$this.unbind( touchMoveEvent, moveHandler );
if ( start && stop ) {
if ( stop.time - start.time < $.event.special.swipe.durationThreshold &&
Math.abs( start.coords[ 0 ] - stop.coords[ 0 ] ) > $.event.special.swipe.horizontalDistanceThreshold &&
Math.abs( start.coords[ 1 ] - stop.coords[ 1 ] ) < $.event.special.swipe.verticalDistanceThreshold ) {
start.origin.trigger( "swipe" )
.trigger( start.coords[0] > stop.coords[ 0 ] ? "swipeleft" : "swiperight" );
}
}
start = stop = undefined;
});
});
}
};
(function( $, window ) {
// "Cowboy" Ben Alman
var win = $( window ),
special_event,
get_orientation,
last_orientation;
$.event.special.orientationchange = special_event = {
setup: function() {
// If the event is supported natively, return false so that jQuery
// will bind to the event using DOM methods.
if ( $.support.orientation && $.mobile.orientationChangeEnabled ) {
return false;
}
// Get the current orientation to avoid initial double-triggering.
last_orientation = get_orientation();
// Because the orientationchange event doesn't exist, simulate the
// event by testing window dimensions on resize.
win.bind( "throttledresize", handler );
},
teardown: function(){
// If the event is not supported natively, return false so that
// jQuery will unbind the event using DOM methods.
if ( $.support.orientation && $.mobile.orientationChangeEnabled ) {
return false;
}
// Because the orientationchange event doesn't exist, unbind the
// resize event handler.
win.unbind( "throttledresize", handler );
},
add: function( handleObj ) {
// Save a reference to the bound event handler.
var old_handler = handleObj.handler;
handleObj.handler = function( event ) {
// Modify event object, adding the .orientation property.
event.orientation = get_orientation();
// Call the originally-bound event handler and return its result.
return old_handler.apply( this, arguments );
};
}
};
// If the event is not supported natively, this handler will be bound to
// the window resize event to simulate the orientationchange event.
function handler() {
// Get the current orientation.
var orientation = get_orientation();
if ( orientation !== last_orientation ) {
// The orientation has changed, so trigger the orientationchange event.
last_orientation = orientation;
win.trigger( "orientationchange" );
}
}
// Get the current page orientation. This method is exposed publicly, should it
// be needed, as jQuery.event.special.orientationchange.orientation()
$.event.special.orientationchange.orientation = get_orientation = function() {
var isPortrait = true, elem = document.documentElement;
// prefer window orientation to the calculation based on screensize as
// the actual screen resize takes place before or after the orientation change event
// has been fired depending on implementation (eg android 2.3 is before, iphone after).
// More testing is required to determine if a more reliable method of determining the new screensize
// is possible when orientationchange is fired. (eg, use media queries + element + opacity)
if ( $.support.orientation ) {
// if the window orientation registers as 0 or 180 degrees report
// portrait, otherwise landscape
isPortrait = window.orientation % 180 == 0;
} else {
isPortrait = elem && elem.clientWidth / elem.clientHeight < 1.1;
}
return isPortrait ? "portrait" : "landscape";
};
})( jQuery, window );
// throttled resize event
(function() {
$.event.special.throttledresize = {
setup: function() {
$( this ).bind( "resize", handler );
},
teardown: function(){
$( this ).unbind( "resize", handler );
}
};
var throttle = 250,
handler = function() {
curr = ( new Date() ).getTime();
diff = curr - lastCall;
if ( diff >= throttle ) {
lastCall = curr;
$( this ).trigger( "throttledresize" );
} else {
if ( heldCall ) {
clearTimeout( heldCall );
}
// Promise a held call will still execute
heldCall = setTimeout( handler, throttle - diff );
}
},
lastCall = 0,
heldCall,
curr,
diff;
})();
$.each({
scrollstop: "scrollstart",
taphold: "tap",
swipeleft: "swipe",
swiperight: "swipe"
}, function( event, sourceEvent ) {
$.event.special[ event ] = {
setup: function() {
$( this ).bind( sourceEvent, $.noop );
}
};
});
})( jQuery, this );
// Script: jQuery hashchange event
//
// *Version: 1.3, Last updated: 7/21/2010*
//
// Project Home - http://benalman.com/projects/jquery-hashchange-plugin/
// GitHub - http://github.com/cowboy/jquery-hashchange/
// Source - http://github.com/cowboy/jquery-hashchange/raw/master/jquery.ba-hashchange.js
// (Minified) - http://github.com/cowboy/jquery-hashchange/raw/master/jquery.ba-hashchange.min.js (0.8kb gzipped)
//
// About: License
//
// Copyright (c) 2010 "Cowboy" Ben Alman,
// Dual licensed under the MIT and GPL licenses.
// http://benalman.com/about/license/
//
// About: Examples
//
// These working examples, complete with fully commented code, illustrate a few
// ways in which this plugin can be used.
//
// hashchange event - http://benalman.com/code/projects/jquery-hashchange/examples/hashchange/
// document.domain - http://benalman.com/code/projects/jquery-hashchange/examples/document_domain/
//
// About: Support and Testing
//
// Information about what version or versions of jQuery this plugin has been
// tested with, what browsers it has been tested in, and where the unit tests
// reside (so you can test it yourself).
//
// jQuery Versions - 1.2.6, 1.3.2, 1.4.1, 1.4.2
// Browsers Tested - Internet Explorer 6-8, Firefox 2-4, Chrome 5-6, Safari 3.2-5,
// Opera 9.6-10.60, iPhone 3.1, Android 1.6-2.2, BlackBerry 4.6-5.
// Unit Tests - http://benalman.com/code/projects/jquery-hashchange/unit/
//
// About: Known issues
//
// While this jQuery hashchange event implementation is quite stable and
// robust, there are a few unfortunate browser bugs surrounding expected
// hashchange event-based behaviors, independent of any JavaScript
// window.onhashchange abstraction. See the following examples for more
// information:
//
// Chrome: Back Button - http://benalman.com/code/projects/jquery-hashchange/examples/bug-chrome-back-button/
// Firefox: Remote XMLHttpRequest - http://benalman.com/code/projects/jquery-hashchange/examples/bug-firefox-remote-xhr/
// WebKit: Back Button in an Iframe - http://benalman.com/code/projects/jquery-hashchange/examples/bug-webkit-hash-iframe/
// Safari: Back Button from a different domain - http://benalman.com/code/projects/jquery-hashchange/examples/bug-safari-back-from-diff-domain/
//
// Also note that should a browser natively support the window.onhashchange
// event, but not report that it does, the fallback polling loop will be used.
//
// About: Release History
//
// 1.3 - (7/21/2010) Reorganized IE6/7 Iframe code to make it more
// "removable" for mobile-only development. Added IE6/7 document.title
// support. Attempted to make Iframe as hidden as possible by using
// techniques from http://www.paciellogroup.com/blog/?p=604. Added
// support for the "shortcut" format $(window).hashchange( fn ) and
// $(window).hashchange() like jQuery provides for built-in events.
// Renamed jQuery.hashchangeDelay to <jQuery.fn.hashchange.delay> and
// lowered its default value to 50. Added <jQuery.fn.hashchange.domain>
// and <jQuery.fn.hashchange.src> properties plus document-domain.html
// file to address access denied issues when setting document.domain in
// IE6/7.
// 1.2 - (2/11/2010) Fixed a bug where coming back to a page using this plugin
// from a page on another domain would cause an error in Safari 4. Also,
// IE6/7 Iframe is now inserted after the body (this actually works),
// which prevents the page from scrolling when the event is first bound.
// Event can also now be bound before DOM ready, but it won't be usable
// before then in IE6/7.
// 1.1 - (1/21/2010) Incorporated document.documentMode test to fix IE8 bug
// where browser version is incorrectly reported as 8.0, despite
// inclusion of the X-UA-Compatible IE=EmulateIE7 meta tag.
// 1.0 - (1/9/2010) Initial Release. Broke out the jQuery BBQ event.special
// window.onhashchange functionality into a separate plugin for users
// who want just the basic event & back button support, without all the
// extra awesomeness that BBQ provides. This plugin will be included as
// part of jQuery BBQ, but also be available separately.
(function($,window,undefined){
'$:nomunge'; // Used by YUI compressor.
// Reused string.
var str_hashchange = 'hashchange',
// Method / object references.
doc = document,
fake_onhashchange,
special = $.event.special,
// Does the browser support window.onhashchange? Note that IE8 running in
// IE7 compatibility mode reports true for 'onhashchange' in window, even
// though the event isn't supported, so also test document.documentMode.
doc_mode = doc.documentMode,
supports_onhashchange = 'on' + str_hashchange in window && ( doc_mode === undefined || doc_mode > 7 );
// Get location.hash (or what you'd expect location.hash to be) sans any
// leading #. Thanks for making this necessary, Firefox!
function get_fragment( url ) {
url = url || location.href;
return '#' + url.replace( /^[^#]*#?(.*)$/, '$1' );
};
// Method: jQuery.fn.hashchange
//
// Bind a handler to the window.onhashchange event or trigger all bound
// window.onhashchange event handlers. This behavior is consistent with
// jQuery's built-in event handlers.
//
// Usage:
//
// > jQuery(window).hashchange( [ handler ] );
//
// Arguments:
//
// handler - (Function) Optional handler to be bound to the hashchange
// event. This is a "shortcut" for the more verbose form:
// jQuery(window).bind( 'hashchange', handler ). If handler is omitted,
// all bound window.onhashchange event handlers will be triggered. This
// is a shortcut for the more verbose
// jQuery(window).trigger( 'hashchange' ). These forms are described in
// the <hashchange event> section.
//
// Returns:
//
// (jQuery) The initial jQuery collection of elements.
// Allow the "shortcut" format $(elem).hashchange( fn ) for binding and
// $(elem).hashchange() for triggering, like jQuery does for built-in events.
$.fn[ str_hashchange ] = function( fn ) {
return fn ? this.bind( str_hashchange, fn ) : this.trigger( str_hashchange );
};
// Property: jQuery.fn.hashchange.delay
//
// The numeric interval (in milliseconds) at which the <hashchange event>
// polling loop executes. Defaults to 50.
// Property: jQuery.fn.hashchange.domain
//
// If you're setting document.domain in your JavaScript, and you want hash
// history to work in IE6/7, not only must this property be set, but you must
// also set document.domain BEFORE jQuery is loaded into the page. This
// property is only applicable if you are supporting IE6/7 (or IE8 operating
// in "IE7 compatibility" mode).
//
// In addition, the <jQuery.fn.hashchange.src> property must be set to the
// path of the included "document-domain.html" file, which can be renamed or
// modified if necessary (note that the document.domain specified must be the
// same in both your main JavaScript as well as in this file).
//
// Usage:
//
// jQuery.fn.hashchange.domain = document.domain;
// Property: jQuery.fn.hashchange.src
//
// If, for some reason, you need to specify an Iframe src file (for example,
// when setting document.domain as in <jQuery.fn.hashchange.domain>), you can
// do so using this property. Note that when using this property, history
// won't be recorded in IE6/7 until the Iframe src file loads. This property
// is only applicable if you are supporting IE6/7 (or IE8 operating in "IE7
// compatibility" mode).
//
// Usage:
//
// jQuery.fn.hashchange.src = 'path/to/file.html';
$.fn[ str_hashchange ].delay = 50;
/*
$.fn[ str_hashchange ].domain = null;
$.fn[ str_hashchange ].src = null;
*/
// Event: hashchange event
//
// Fired when location.hash changes. In browsers that support it, the native
// HTML5 window.onhashchange event is used, otherwise a polling loop is
// initialized, running every <jQuery.fn.hashchange.delay> milliseconds to
// see if the hash has changed. In IE6/7 (and IE8 operating in "IE7
// compatibility" mode), a hidden Iframe is created to allow the back button
// and hash-based history to work.
//
// Usage as described in <jQuery.fn.hashchange>:
//
// > // Bind an event handler.
// > jQuery(window).hashchange( function(e) {
// > var hash = location.hash;
// > ...
// > });
// >
// > // Manually trigger the event handler.
// > jQuery(window).hashchange();
//
// A more verbose usage that allows for event namespacing:
//
// > // Bind an event handler.
// > jQuery(window).bind( 'hashchange', function(e) {
// > var hash = location.hash;
// > ...
// > });
// >
// > // Manually trigger the event handler.
// > jQuery(window).trigger( 'hashchange' );
//
// Additional Notes:
//
// * The polling loop and Iframe are not created until at least one handler
// is actually bound to the 'hashchange' event.
// * If you need the bound handler(s) to execute immediately, in cases where
// a location.hash exists on page load, via bookmark or page refresh for
// example, use jQuery(window).hashchange() or the more verbose
// jQuery(window).trigger( 'hashchange' ).
// * The event can be bound before DOM ready, but since it won't be usable
// before then in IE6/7 (due to the necessary Iframe), recommended usage is
// to bind it inside a DOM ready handler.
// Override existing $.event.special.hashchange methods (allowing this plugin
// to be defined after jQuery BBQ in BBQ's source code).
special[ str_hashchange ] = $.extend( special[ str_hashchange ], {
// Called only when the first 'hashchange' event is bound to window.
setup: function() {
// If window.onhashchange is supported natively, there's nothing to do..
if ( supports_onhashchange ) { return false; }
// Otherwise, we need to create our own. And we don't want to call this
// until the user binds to the event, just in case they never do, since it
// will create a polling loop and possibly even a hidden Iframe.
$( fake_onhashchange.start );
},
// Called only when the last 'hashchange' event is unbound from window.
teardown: function() {
// If window.onhashchange is supported natively, there's nothing to do..
if ( supports_onhashchange ) { return false; }
// Otherwise, we need to stop ours (if possible).
$( fake_onhashchange.stop );
}
});
// fake_onhashchange does all the work of triggering the window.onhashchange
// event for browsers that don't natively support it, including creating a
// polling loop to watch for hash changes and in IE 6/7 creating a hidden
// Iframe to enable back and forward.
fake_onhashchange = (function(){
var self = {},
timeout_id,
// Remember the initial hash so it doesn't get triggered immediately.
last_hash = get_fragment(),
fn_retval = function(val){ return val; },
history_set = fn_retval,
history_get = fn_retval;
// Start the polling loop.
self.start = function() {
timeout_id || poll();
};
// Stop the polling loop.
self.stop = function() {
timeout_id && clearTimeout( timeout_id );
timeout_id = undefined;
};
// This polling loop checks every $.fn.hashchange.delay milliseconds to see
// if location.hash has changed, and triggers the 'hashchange' event on
// window when necessary.
function poll() {
var hash = get_fragment(),
history_hash = history_get( last_hash );
if ( hash !== last_hash ) {
history_set( last_hash = hash, history_hash );
$(window).trigger( str_hashchange );
} else if ( history_hash !== last_hash ) {
location.href = location.href.replace( /#.*/, '' ) + history_hash;
}
timeout_id = setTimeout( poll, $.fn[ str_hashchange ].delay );
};
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
// vvvvvvvvvvvvvvvvvvv REMOVE IF NOT SUPPORTING IE6/7/8 vvvvvvvvvvvvvvvvvvv
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
$.browser.msie && !supports_onhashchange && (function(){
// Not only do IE6/7 need the "magical" Iframe treatment, but so does IE8
// when running in "IE7 compatibility" mode.
var iframe,
iframe_src;
// When the event is bound and polling starts in IE 6/7, create a hidden
// Iframe for history handling.
self.start = function(){
if ( !iframe ) {
iframe_src = $.fn[ str_hashchange ].src;
iframe_src = iframe_src && iframe_src + get_fragment();
// Create hidden Iframe. Attempt to make Iframe as hidden as possible
// by using techniques from http://www.paciellogroup.com/blog/?p=604.
iframe = $('<iframe tabindex="-1" title="empty"/>').hide()
// When Iframe has completely loaded, initialize the history and
// start polling.
.one( 'load', function(){
iframe_src || history_set( get_fragment() );
poll();
})
// Load Iframe src if specified, otherwise nothing.
.attr( 'src', iframe_src || 'javascript:0' )
// Append Iframe after the end of the body to prevent unnecessary
// i