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jquery.mobile.navigation.js
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jquery.mobile.navigation.js
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/*
* jQuery Mobile Framework : core utilities for auto ajax navigation, base tag mgmt,
* Copyright (c) jQuery Project
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*/
( function( $, undefined ) {
//define vars for interal use
var $window = $( window ),
$html = $( 'html' ),
$head = $( 'head' ),
//url path helpers for use in relative url management
path = {
// This scary looking regular expression parses an absolute URL or its relative
// variants (protocol, site, document, query, and hash), into the various
// components (protocol, host, path, query, fragment, etc that make up the
// URL as well as some other commonly used sub-parts. When used with RegExp.exec()
// or String.match, it parses the URL into a results array that looks like this:
//
// [0]: http://jblas:password@mycompany.com:8080/mail/inbox?msg=1234&type=unread#msg-content
// [1]: http://jblas:password@mycompany.com:8080/mail/inbox?msg=1234&type=unread
// [2]: http://jblas:password@mycompany.com:8080/mail/inbox
// [3]: http://jblas:password@mycompany.com:8080
// [4]: http:
// [5]: jblas:password@mycompany.com:8080
// [6]: jblas:password
// [7]: jblas
// [8]: password
// [9]: mycompany.com:8080
// [10]: mycompany.com
// [11]: 8080
// [12]: /mail/inbox
// [13]: /mail/
// [14]: inbox
// [15]: ?msg=1234&type=unread
// [16]: #msg-content
//
urlParseRE: /^(((([^:\/#\?]+:)?(?:\/\/((?:(([^:@\/#\?]+)(?:\:([^:@\/#\?]+))?)@)?(([^:\/#\?]+)(?:\:([0-9]+))?))?)?)?((\/?(?:[^\/\?#]+\/+)*)([^\?#]*)))?(\?[^#]+)?)(#.*)?/,
//Parse a URL into a structure that allows easy access to
//all of the URL components by name.
parseUrl: function( url ) {
// If we're passed an object, we'll assume that it is
// a parsed url object and just return it back to the caller.
if ( typeof url === "object" ) {
return url;
}
var u = url || "",
matches = path.urlParseRE.exec( url ),
results;
if ( matches ) {
// Create an object that allows the caller to access the sub-matches
// by name. Note that IE returns an empty string instead of undefined,
// like all other browsers do, so we normalize everything so its consistent
// no matter what browser we're running on.
results = {
href: matches[0] || "",
hrefNoHash: matches[1] || "",
hrefNoSearch: matches[2] || "",
domain: matches[3] || "",
protocol: matches[4] || "",
authority: matches[5] || "",
username: matches[7] || "",
password: matches[8] || "",
host: matches[9] || "",
hostname: matches[10] || "",
port: matches[11] || "",
pathname: matches[12] || "",
directory: matches[13] || "",
filename: matches[14] || "",
search: matches[15] || "",
hash: matches[16] || ""
};
}
return results || {};
},
//Turn relPath into an asbolute path. absPath is
//an optional absolute path which describes what
//relPath is relative to.
makePathAbsolute: function( relPath, absPath ) {
if ( relPath && relPath.charAt( 0 ) === "/" ) {
return relPath;
}
relPath = relPath || "";
absPath = absPath ? absPath.replace( /^\/|(\/[^\/]*|[^\/]+)$/g, "" ) : "";
var absStack = absPath ? absPath.split( "/" ) : [],
relStack = relPath.split( "/" );
for ( var i = 0; i < relStack.length; i++ ) {
var d = relStack[ i ];
switch ( d ) {
case ".":
break;
case "..":
if ( absStack.length ) {
absStack.pop();
}
break;
default:
absStack.push( d );
break;
}
}
return "/" + absStack.join( "/" );
},
//Returns true if both urls have the same domain.
isSameDomain: function( absUrl1, absUrl2 ) {
return path.parseUrl( absUrl1 ).domain === path.parseUrl( absUrl2 ).domain;
},
//Returns true for any relative variant.
isRelativeUrl: function( url ) {
// All relative Url variants have one thing in common, no protocol.
return path.parseUrl( url ).protocol === "";
},
//Returns true for an absolute url.
isAbsoluteUrl: function( url ) {
return path.parseUrl( url ).protocol !== "";
},
//Turn the specified realtive URL into an absolute one. This function
//can handle all relative variants (protocol, site, document, query, fragment).
makeUrlAbsolute: function( relUrl, absUrl ) {
if ( !path.isRelativeUrl( relUrl ) ) {
return relUrl;
}
var relObj = path.parseUrl( relUrl ),
absObj = path.parseUrl( absUrl ),
protocol = relObj.protocol || absObj.protocol,
authority = relObj.authority || absObj.authority,
hasPath = relObj.pathname !== "",
pathname = path.makePathAbsolute( relObj.pathname || absObj.filename, absObj.pathname ),
search = relObj.search || ( !hasPath && absObj.search ) || "",
hash = relObj.hash;
return protocol + "//" + authority + pathname + search + hash;
},
//Add search (aka query) params to the specified url.
addSearchParams: function( url, params ) {
var u = path.parseUrl( url ),
p = ( typeof params === "object" ) ? $.param( params ) : params,
s = u.search || "?";
return u.hrefNoSearch + s + ( s.charAt( s.length - 1 ) !== "?" ? "&" : "" ) + p + ( u.hash || "" );
},
convertUrlToDataUrl: function( absUrl ) {
var u = path.parseUrl( absUrl );
if ( path.isEmbeddedPage( u ) ) {
// For embedded pages, remove the dialog hash key as in getFilePath(),
// otherwise the Data Url won't match the id of the embedded Page.
return u.hash.split( dialogHashKey )[0].replace( /^#/, "" );
} else if ( path.isSameDomain( u, documentBase ) ) {
return u.hrefNoHash.replace( documentBase.domain, "" );
}
return absUrl;
},
//get path from current hash, or from a file path
get: function( newPath ) {
if( newPath === undefined ) {
if( $.support.pushState && !location.hash ){
newPath = location.href;
}
else{
newPath = location.hash;
}
}
return path.stripHash( newPath );
// Todo Todo Todo: this return used to apply the following: .replace( /[^\/]*\.[^\/*]+$/, '' ).
// It doesn't work with pushstate, but WHY was it there???
},
//return the substring of a filepath before the sub-page key, for making a server request
getFilePath: function( path ) {
var splitkey = '&' + $.mobile.subPageUrlKey;
return path && path.split( splitkey )[0].split( dialogHashKey )[0];
},
//set location hash to path
set: function( path ) {
location.hash = path;
},
//test if a given url (string) is a path
//NOTE might be exceptionally naive
isPath: function( url ) {
return ( /\// ).test( url );
},
//return a url path with the window's location protocol/hostname/pathname removed
clean: function( url ) {
return url.replace( documentBase.domain, "" );
},
//just return the url without an initial #
stripHash: function( url ) {
return url.replace( /^#/, "" );
},
//remove the preceding hash, any query params, and dialog notations
cleanHash: function( hash ) {
return path.stripHash( hash.replace( /\?.*$/, "" ).replace( dialogHashKey, "" ) );
},
//check whether a url is referencing the same domain, or an external domain or different protocol
//could be mailto, etc
isExternal: function( url ) {
var u = path.parseUrl( url );
return u.protocol && u.domain !== documentUrl.domain ? true : false;
},
hasProtocol: function( url ) {
return ( /^(:?\w+:)/ ).test( url );
},
isEmbeddedPage: function( url ) {
var u = path.parseUrl( url );
//if the path is absolute, then we need to compare the url against
//both the documentUrl and the documentBase. The main reason for this
//is that links embedded within external documents will refer to the
//application document, whereas links embedded within the application
//document will be resolved against the document base.
if ( u.protocol !== "" ) {
return ( u.hash && ( u.hrefNoHash === documentUrl.hrefNoHash || ( documentBaseDiffers && u.hrefNoHash === documentBase.hrefNoHash ) ) );
}
return (/^#/).test( u.href );
}
},
//will be defined when a link is clicked and given an active class
$activeClickedLink = null,
//urlHistory is purely here to make guesses at whether the back or forward button was clicked
//and provide an appropriate transition
urlHistory = {
//array of pages that are visited during a single page load. each has a url and optional transition
stack: [],
//maintain an index number for the active page in the stack
activeIndex: 0,
//get active
getActive: function() {
return urlHistory.stack[ urlHistory.activeIndex ];
},
getPrev: function() {
return urlHistory.stack[ urlHistory.activeIndex - 1 ];
},
getNext: function() {
return urlHistory.stack[ urlHistory.activeIndex + 1 ];
},
// addNew is used whenever a new page is added
addNew: function( url, transition, title, storedTo ) {
//if there's forward history, wipe it
if( urlHistory.getNext() ) {
urlHistory.clearForward();
}
urlHistory.stack.push( {url : url, transition: transition, title: title, page: storedTo } );
urlHistory.activeIndex = urlHistory.stack.length - 1;
},
//wipe urls ahead of active index
clearForward: function() {
urlHistory.stack = urlHistory.stack.slice( 0, urlHistory.activeIndex + 1 );
},
directHashChange: function( opts ) {
var back , forward, newActiveIndex;
// check if url isp in history and if it's ahead or behind current page
$.each( urlHistory.stack, function( i, historyEntry ) {
//if the url is in the stack, it's a forward or a back
if( opts.currentUrl === historyEntry.url ) {
//define back and forward by whether url is older or newer than current page
back = i < urlHistory.activeIndex;
forward = !back;
newActiveIndex = i;
}
});
// save new page index, null check to prevent falsey 0 result
this.activeIndex = newActiveIndex !== undefined ? newActiveIndex : this.activeIndex;
if( back ) {
opts.isBack();
} else if( forward ) {
opts.isForward();
}
},
//disable hashchange event listener internally to ignore one change
//toggled internally when location.hash is updated to match the url of a successful page load
ignoreNextHashChange: false,
//start with popstate disabled
ignoreNextPopState: true
},
//define first selector to receive focus when a page is shown
focusable = "[tabindex],a,button:visible,select:visible,input",
//queue to hold simultanious page transitions
pageTransitionQueue = [],
//indicates whether or not page is in process of transitioning
isPageTransitioning = false,
//nonsense hash change key for dialogs, so they create a history entry
dialogHashKey = "&ui-state=dialog",
//existing base tag?
$base = $head.children( "base" ),
//tuck away the original document URL minus any fragment.
documentUrl = path.parseUrl( location.href ),
//if the document has an embedded base tag, documentBase is set to its
//initial value. If a base tag does not exist, then we default to the documentUrl.
documentBase = $base.length ? path.parseUrl( path.makeUrlAbsolute( $base.attr( "href" ), documentUrl.href ) ) : documentUrl,
//cache the comparison once.
documentBaseDiffers = ( documentUrl.hrefNoHash !== documentBase.hrefNoHash );
//base element management, defined depending on dynamic base tag support
var base = $.support.dynamicBaseTag ? {
//define base element, for use in routing asset urls that are referenced in Ajax-requested markup
element: ( $base.length ? $base : $( "<base>", { href: documentBase.hrefNoHash } ).prependTo( $head ) ),
//set the generated BASE element's href attribute to a new page's base path
set: function( href ) {
base.element.attr( "href", path.makeUrlAbsolute( href, documentBase ) );
},
//set the generated BASE element's href attribute to a new page's base path
reset: function() {
base.element.attr( "href", documentBase.hrefNoHash );
}
} : undefined;
/*
internal utility functions
--------------------------------------*/
//direct focus to the page title, or otherwise first focusable element
function reFocus( page ) {
var lastClicked = page.jqmData( "lastClicked" );
if( lastClicked && lastClicked.length ) {
lastClicked.focus();
}
else {
var pageTitle = page.find( ".ui-title:eq(0)" );
if( pageTitle.length ) {
pageTitle.focus();
}
else{
page.find( focusable ).eq( 0 ).focus();
}
}
}
//remove active classes after page transition or error
function removeActiveLinkClass( forceRemoval ) {
if( !!$activeClickedLink && ( !$activeClickedLink.closest( '.ui-page-active' ).length || forceRemoval ) ) {
$activeClickedLink.removeClass( $.mobile.activeBtnClass );
}
$activeClickedLink = null;
}
function releasePageTransitionLock() {
isPageTransitioning = false;
if( pageTransitionQueue.length > 0 ) {
$.mobile.changePage.apply( null, pageTransitionQueue.pop() );
}
}
//function for transitioning between two existing pages
function transitionPages( toPage, fromPage, transition, reverse ) {
//get current scroll distance
var currScroll = $.support.scrollTop ? $window.scrollTop() : true,
toScroll = toPage.data( "lastScroll" ) || $.mobile.defaultHomeScroll,
screenHeight = getScreenHeight();
//if scrolled down, scroll to top
if( currScroll ){
window.scrollTo( 0, $.mobile.defaultHomeScroll );
}
//if the Y location we're scrolling to is less than 10px, let it go for sake of smoothness
if( toScroll < $.mobile.minScrollBack ){
toScroll = 0;
}
if( fromPage ) {
//set as data for returning to that spot
fromPage
.height( screenHeight + currScroll )
.jqmData( "lastScroll", currScroll )
.jqmData( "lastClicked", $activeClickedLink );
//trigger before show/hide events
fromPage.data( "page" )._trigger( "beforehide", null, { nextPage: toPage } );
}
toPage
.height( screenHeight + toScroll )
.data( "page" )._trigger( "beforeshow", null, { prevPage: fromPage || $( "" ) } );
//clear page loader
$.mobile.hidePageLoadingMsg();
//find the transition handler for the specified transition. If there
//isn't one in our transitionHandlers dictionary, use the default one.
//call the handler immediately to kick-off the transition.
var th = $.mobile.transitionHandlers[transition || "none"] || $.mobile.defaultTransitionHandler,
promise = th( transition, reverse, toPage, fromPage );
promise.done(function() {
//reset toPage height bac
toPage.height( "" );
//jump to top or prev scroll, sometimes on iOS the page has not rendered yet.
if( toScroll ){
$.mobile.silentScroll( toScroll );
$( document ).one( "silentscroll", function() { reFocus( toPage ); } );
}
else{
reFocus( toPage );
}
//trigger show/hide events
if( fromPage ) {
fromPage.height("").data( "page" )._trigger( "hide", null, { nextPage: toPage } );
}
//trigger pageshow, define prevPage as either fromPage or empty jQuery obj
toPage.data( "page" )._trigger( "show", null, { prevPage: fromPage || $( "" ) } );
});
return promise;
}
//simply set the active page's minimum height to screen height, depending on orientation
function getScreenHeight(){
var orientation = jQuery.event.special.orientationchange.orientation(),
port = orientation === "portrait",
winMin = port ? 480 : 320,
screenHeight = port ? screen.availHeight : screen.availWidth,
winHeight = Math.max( winMin, $( window ).height() ),
pageMin = Math.min( screenHeight, winHeight );
return pageMin;
}
//simply set the active page's minimum height to screen height, depending on orientation
function resetActivePageHeight(){
$( "." + $.mobile.activePageClass ).css( "min-height", getScreenHeight() );
}
//shared page enhancements
function enhancePage( $page, role ) {
// If a role was specified, make sure the data-role attribute
// on the page element is in sync.
if( role ) {
$page.attr( "data-" + $.mobile.ns + "role", role );
}
//run page plugin
$page.page();
}
/* exposed $.mobile methods */
//animation complete callback
$.fn.animationComplete = function( callback ) {
if( $.support.cssTransitions ) {
return $( this ).one( 'webkitAnimationEnd', callback );
}
else{
// defer execution for consistency between webkit/non webkit
setTimeout( callback, 0 );
return $( this );
}
};
//update location.hash, with or without triggering hashchange event
//TODO - deprecate this one at 1.0
$.mobile.updateHash = path.set;
//expose path object on $.mobile
$.mobile.path = path;
//expose base object on $.mobile
$.mobile.base = base;
//url stack, useful when plugins need to be aware of previous pages viewed
//TODO: deprecate this one at 1.0
$.mobile.urlstack = urlHistory.stack;
//history stack
$.mobile.urlHistory = urlHistory;
//default non-animation transition handler
$.mobile.noneTransitionHandler = function( name, reverse, $toPage, $fromPage ) {
if ( $fromPage ) {
$fromPage.removeClass( $.mobile.activePageClass );
}
$toPage.addClass( $.mobile.activePageClass );
return $.Deferred().resolve( name, reverse, $toPage, $fromPage ).promise();
};
//default handler for unknown transitions
$.mobile.defaultTransitionHandler = $.mobile.noneTransitionHandler;
//transition handler dictionary for 3rd party transitions
$.mobile.transitionHandlers = {
none: $.mobile.defaultTransitionHandler
};
//enable cross-domain page support
$.mobile.allowCrossDomainPages = false;
//return the original document url
$.mobile.getDocumentUrl = function(asParsedObject) {
return asParsedObject ? $.extend( {}, documentUrl ) : documentUrl.href;
};
//return the original document base url
$.mobile.getDocumentBase = function(asParsedObject) {
return asParsedObject ? $.extend( {}, documentBase ) : documentBase.href;
};
// Load a page into the DOM.
$.mobile.loadPage = function( url, options ) {
// This function uses deferred notifications to let callers
// know when the page is done loading, or if an error has occurred.
var deferred = $.Deferred(),
// The default loadPage options with overrides specified by
// the caller.
settings = $.extend( {}, $.mobile.loadPage.defaults, options ),
// The DOM element for the page after it has been loaded.
page = null,
// If the reloadPage option is true, and the page is already
// in the DOM, dupCachedPage will be set to the page element
// so that it can be removed after the new version of the
// page is loaded off the network.
dupCachedPage = null,
// The absolute version of the URL passed into the function. This
// version of the URL may contain dialog/subpage params in it.
absUrl = path.makeUrlAbsolute( url, documentBase.hrefNoHash );
// If the caller provided data, and we're using "get" request,
// append the data to the URL.
if ( settings.data && settings.type === "get" ) {
absUrl = path.addSearchParams( absUrl, settings.data );
settings.data = undefined;
}
// The absolute version of the URL minus any dialog/subpage params.
// In otherwords the real URL of the page to be loaded.
var fileUrl = path.getFilePath( absUrl ),
// The version of the Url actually stored in the data-url attribute of
// the page. For embedded pages, it is just the id of the page. For pages
// within the same domain as the document base, it is the site relative
// path. For cross-domain pages (Phone Gap only) the entire absolute Url
// used to load the page.
dataUrl = path.convertUrlToDataUrl( absUrl );
// Make sure we have a pageContainer to work with.
settings.pageContainer = settings.pageContainer || $.mobile.pageContainer;
// Check to see if the page already exists in the DOM.
page = settings.pageContainer.children( ":jqmData(url='" + dataUrl + "')" );
// Reset base to the default document base.
if ( base ) {
base.reset();
}
// If the page we are interested in is already in the DOM,
// and the caller did not indicate that we should force a
// reload of the file, we are done. Otherwise, track the
// existing page as a duplicated.
if ( page.length ) {
if ( !settings.reloadPage ) {
enhancePage( page, settings.role );
deferred.resolve( absUrl, options, page );
return deferred.promise();
}
dupCachedPage = page;
}
if ( settings.showLoadMsg ) {
$.mobile.showPageLoadingMsg();
}
// Load the new page.
$.ajax({
url: fileUrl,
type: settings.type,
data: settings.data,
dataType: "html",
success: function( html ) {
//pre-parse html to check for a data-url,
//use it as the new fileUrl, base path, etc
var all = $( "<div></div>" ),
//page title regexp
newPageTitle = html.match( /<title[^>]*>([^<]*)/ ) && RegExp.$1,
// TODO handle dialogs again
pageElemRegex = new RegExp( ".*(<[^>]+\\bdata-" + $.mobile.ns + "role=[\"']?page[\"']?[^>]*>).*" ),
dataUrlRegex = new RegExp( "\\bdata-" + $.mobile.ns + "url=[\"']?([^\"'>]*)[\"']?" );
// data-url must be provided for the base tag so resource requests can be directed to the
// correct url. loading into a temprorary element makes these requests immediately
if( pageElemRegex.test( html )
&& RegExp.$1
&& dataUrlRegex.test( RegExp.$1 )
&& RegExp.$1 ) {
url = fileUrl = path.getFilePath( RegExp.$1 );
}
if ( base ) {
base.set( fileUrl );
}
//workaround to allow scripts to execute when included in page divs
all.get( 0 ).innerHTML = html;
page = all.find( ":jqmData(role='page'), :jqmData(role='dialog')" ).first();
if ( newPageTitle && !page.jqmData( "title" ) ) {
page.jqmData( "title", newPageTitle );
}
//rewrite src and href attrs to use a base url
if( !$.support.dynamicBaseTag ) {
var newPath = path.get( fileUrl );
page.find( "[src], link[href], a[rel='external'], :jqmData(ajax='false'), a[target]" ).each(function() {
var thisAttr = $( this ).is( '[href]' ) ? 'href' :
$(this).is('[src]') ? 'src' : 'action',
thisUrl = $( this ).attr( thisAttr );
// XXX_jblas: We need to fix this so that it removes the document
// base URL, and then prepends with the new page URL.
//if full path exists and is same, chop it - helps IE out
thisUrl = thisUrl.replace( location.protocol + '//' + location.host + location.pathname, '' );
if( !/^(\w+:|#|\/)/.test( thisUrl ) ) {
$( this ).attr( thisAttr, newPath + thisUrl );
}
});
}
//append to page and enhance
page
.attr( "data-" + $.mobile.ns + "url", path.convertUrlToDataUrl( fileUrl ) )
.appendTo( settings.pageContainer );
enhancePage( page, settings.role );
// Enhancing the page may result in new dialogs/sub pages being inserted
// into the DOM. If the original absUrl refers to a sub-page, that is the
// real page we are interested in.
if ( absUrl.indexOf( "&" + $.mobile.subPageUrlKey ) > -1 ) {
page = settings.pageContainer.children( ":jqmData(url='" + dataUrl + "')" );
}
// Remove loading message.
if ( settings.showLoadMsg ) {
$.mobile.hidePageLoadingMsg();
}
deferred.resolve( absUrl, options, page, dupCachedPage );
},
error: function() {
//set base back to current path
if( base ) {
base.set( path.get() );
}
// Remove loading message.
if ( settings.showLoadMsg ) {
$.mobile.hidePageLoadingMsg();
//show error message
$( "<div class='ui-loader ui-overlay-shadow ui-body-e ui-corner-all'><h1>"+ $.mobile.pageLoadErrorMessage +"</h1></div>" )
.css({ "display": "block", "opacity": 0.96, "top": $window.scrollTop() + 100 })
.appendTo( settings.pageContainer )
.delay( 800 )
.fadeOut( 400, function() {
$( this ).remove();
});
}
deferred.reject( absUrl, options );
}
});
return deferred.promise();
};
$.mobile.loadPage.defaults = {
type: "get",
data: undefined,
reloadPage: false,
role: undefined, // By default we rely on the role defined by the @data-role attribute.
showLoadMsg: true,
pageContainer: undefined
};
// Show a specific page in the page container.
$.mobile.changePage = function( toPage, options ) {
// XXX: REMOVE_BEFORE_SHIPPING_1.0
// This is temporary code that makes changePage() compatible with previous alpha versions.
if ( typeof options !== "object" ) {
var opts = null;
// Map old-style call signature for form submit to the new options object format.
if ( typeof toPage === "object" && toPage.url && toPage.type ) {
opts = {
type: toPage.type,
data: toPage.data,
forcePageLoad: true
};
toPage = toPage.url;
}
// The arguments passed into the function need to be re-mapped
// to the new options object format.
var len = arguments.length;
if ( len > 1 ) {
var argNames = [ "transition", "reverse", "changeHash", "fromHashChange" ], i;
for ( i = 1; i < len; i++ ) {
var a = arguments[ i ];
if ( typeof a !== "undefined" ) {
opts = opts || {};
opts[ argNames[ i - 1 ] ] = a;
}
}
}
// If an options object was created, then we know changePage() was called
// with an old signature.
if ( opts ) {
return $.mobile.changePage( toPage, opts );
}
}
// XXX: REMOVE_BEFORE_SHIPPING_1.0
// If we are in the midst of a transition, queue the current request.
// We'll call changePage() once we're done with the current transition to
// service the request.
if( isPageTransitioning ) {
pageTransitionQueue.unshift( arguments );
return;
}
// Set the isPageTransitioning flag to prevent any requests from
// entering this method while we are in the midst of loading a page
// or transitioning.
isPageTransitioning = true;
var settings = $.extend( {}, $.mobile.changePage.defaults, options );
// Make sure we have a pageContainer to work with.
settings.pageContainer = settings.pageContainer || $.mobile.pageContainer;
// If the caller passed us a url, call loadPage()
// to make sure it is loaded into the DOM. We'll listen
// to the promise object it returns so we know when
// it is done loading or if an error ocurred.
if ( typeof toPage == "string" ) {
$.mobile.loadPage( toPage, settings )
.done(function( url, options, newPage, dupCachedPage ) {
isPageTransitioning = false;
options.duplicateCachedPage = dupCachedPage;
$.mobile.changePage( newPage, options );
})
.fail(function( url, options ) {
// XXX_jblas: Fire off changepagefailed notificaiton.
isPageTransitioning = false;
//clear out the active button state
removeActiveLinkClass( true );
//release transition lock so navigation is free again
releasePageTransitionLock();
settings.pageContainer.trigger("changepagefailed");
});
return;
}
// The caller passed us a real page DOM element. Update our
// internal state and then trigger a transition to the page.
var mpc = settings.pageContainer,
fromPage = $.mobile.activePage,
url = toPage.jqmData( "url" ),
fileUrl = path.getFilePath( url ),
active = urlHistory.getActive(),
activeIsInitialPage = urlHistory.activeIndex === 0,
historyDir = 0,
pageTitle = document.title,
isDialog = settings.role === "dialog" || toPage.jqmData( "role" ) === "dialog";
// Let listeners know we're about to change the current page.
mpc.trigger( "beforechangepage" );
// If we are trying to transition to the same page that we are currently on ignore the request.
// an illegal same page request is defined by the current page being the same as the url, as long as there's history
// and toPage is not an array or object (those are allowed to be "same")
//
// XXX_jblas: We need to remove this at some point when we allow for transitions
// to the same page.
if( fromPage && fromPage[0] === toPage[0] ) {
isPageTransitioning = false;
mpc.trigger( "changepage" );
return;
}
// We need to make sure the page we are given has already been enhanced.
enhancePage( toPage, settings.role );
// If the changePage request was sent from a hashChange event, check to see if the
// page is already within the urlHistory stack. If so, we'll assume the user hit
// the forward/back button and will try to match the transition accordingly.
if( settings.fromHashChange ) {
urlHistory.directHashChange({
currentUrl: url,
isBack: function() { historyDir = -1; },
isForward: function() { historyDir = 1; }
});
}
// Kill the keyboard.
// XXX_jblas: We need to stop crawling the entire document to kill focus. Instead,
// we should be tracking focus with a live() handler so we already have
// the element in hand at this point.
$( document.activeElement || "" ).add( "input:focus, textarea:focus, select:focus" ).blur();
// If we're displaying the page as a dialog, we don't want the url
// for the dialog content to be used in the hash. Instead, we want
// to append the dialogHashKey to the url of the current page.
if ( isDialog && active ) {
//if pushState is enabled, we only need to set the hash to the dialogkey + something random
url = ( $.support.pushState ? "" : active.url ) + dialogHashKey + ( Math.random().toString().slice(2,6) );
}
// Set the location hash.
if( settings.changeHash !== false && url ) {
//disable hash listening temporarily
urlHistory.ignoreNextHashChange = true;
//update hash and history
path.set( url );
}
//if title element wasn't found, try the page div data attr too
var newPageTitle = toPage.jqmData( "title" ) || toPage.children(":jqmData(role='header')").find(".ui-title" ).text();
if( !!newPageTitle && pageTitle == document.title ) {
pageTitle = newPageTitle;
}
//add page to history stack if it's not back or forward
if( !historyDir ) {
urlHistory.addNew( url, settings.transition, pageTitle, toPage );
}
//set page title
document.title = urlHistory.getActive().title;
//set "toPage" as activePage
$.mobile.activePage = toPage;
// Make sure we have a transition defined.
settings.transition = settings.transition
|| ( ( historyDir && !activeIsInitialPage ) ? active.transition : undefined )
|| ( settings.role === "dialog" ? $.mobile.defaultDialogTransition : $.mobile.defaultPageTransition );
// If we're navigating back in the URL history, set reverse accordingly.
settings.reverse = settings.reverse || historyDir < 0;
transitionPages( toPage, fromPage, settings.transition, settings.reverse )
.done(function() {
removeActiveLinkClass();
//if there's a duplicateCachedPage, remove it from the DOM now that it's hidden
if ( settings.duplicateCachedPage ) {
settings.duplicateCachedPage.remove();
}
//remove initial build class (only present on first pageshow)
$html.removeClass( "ui-mobile-rendering" );
releasePageTransitionLock();
// Let listeners know we're all done changing the current page.
mpc.trigger( "changepage" );
});
};
$.mobile.changePage.defaults = {
transition: undefined,
reverse: false,
changeHash: true,
fromHashChange: false,
role: undefined, // By default we rely on the role defined by the @data-role attribute.
duplicateCachedPage: undefined,
pageContainer: undefined
};
/* Event Bindings - hashchange, submit, and click */
function findClosestLink( ele )
{
while ( ele ) {
if ( ele.nodeName.toLowerCase() == "a" ) {
break;
}
ele = ele.parentNode;
}
return ele;
}
// The base URL for any given element depends on the page it resides in.
function getClosestBaseUrl( ele )
{
// Find the closest page and extract out its url.
var url = $( ele ).closest( ".ui-page" ).jqmData( "url" ),
base = documentBase.hrefNoHash;
if ( !url || !path.isPath( url ) ) {
url = base;
}
return path.makeUrlAbsolute( url, base);
}
//The following event bindings should be bound after mobileinit has been triggered
//the following function is called in the init file
$.mobile._registerInternalEvents = function(){
//bind to form submit events, handle with Ajax
$( "form" ).live('submit', function( event ) {
var $this = $( this );
if( !$.mobile.ajaxEnabled ||
$this.is( ":jqmData(ajax='false')" ) ) {
return;
}
var type = $this.attr( "method" ),
target = $this.attr( "target" ),
url = $this.attr( "action" );
// If no action is specified, browsers default to using the
// URL of the document containing the form. Since we dynamically
// pull in pages from external documents, the form should submit
// to the URL for the source document of the page containing
// the form.
if ( !url ) {
// Get the @data-url for the page containing the form.
url = getClosestBaseUrl( $this );
if ( url === documentBase.hrefNoHash ) {
// The url we got back matches the document base,
// which means the page must be an internal/embedded page,
// so default to using the actual document url as a browser
// would.
url = documentUrl.hrefNoSearch;
}
}