jquery-mobile/js/jquery.mobile.core.js

/*!
 * jQuery Mobile v@VERSION
 * http://jquerymobile.com/
 *
 * Copyright 2010, jQuery Project
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 */

(function( $, window, undefined ) {

	// jQuery.mobile configurable options
	$.extend( $.mobile, {

		// Namespace used framework-wide for data-attrs. Default is no namespace
		ns: "",

		// Define the url parameter used for referencing widget-generated sub-pages.
		// Translates to to example.html&ui-page=subpageIdentifier
		// hash segment before &ui-page= is used to make Ajax request
		subPageUrlKey: "ui-page",

		// Anchor links with a data-rel, or pages with a	 data-role, that match these selectors will be untrackable in history
		// (no change in URL, not bookmarkable)
		nonHistorySelectors: "dialog",

		// Class assigned to page currently in view, and during transitions
		activePageClass: "ui-page-active",

		// Class used for "active" button state, from CSS framework
		activeBtnClass: "ui-btn-active",

		// Automatically handle clicks and form submissions through Ajax, when same-domain
		ajaxEnabled: true,

		// When enabled, clicks and taps that result in Ajax page changes will happen slightly sooner on touch devices.
		// Also, it will prevent the address bar from appearing on platforms like iOS during page transitions.
		// This option has no effect on non-touch devices, but enabling it may interfere with jQuery plugins that bind to click events
		useFastClick: true,

		// Automatically load and show pages based on location.hash
		hashListeningEnabled: true,

		// Set default page transition - 'none' for no transitions
		defaultPageTransition: "slide",

		// Minimum scroll distance that will be remembered when returning to a page
		minScrollBack: screen.height / 2,

		// Set default dialog transition - 'none' for no transitions
		defaultDialogTransition: "pop",

		// Show loading message during Ajax requests
		// if false, message will not appear, but loading classes will still be toggled on html el
		loadingMessage: "loading",

		// Error response message - appears when an Ajax page request fails
		pageLoadErrorMessage: "Error Loading Page",

		// Support conditions that must be met in order to proceed
		// default enhanced qualifications are media query support OR IE 7+
		gradeA: function(){
			return $.support.mediaquery || $.mobile.browser.ie && $.mobile.browser.ie >= 7;
		},

		// TODO might be useful upstream in jquery itself ?
		keyCode: {
			ALT: 18,
			BACKSPACE: 8,
			CAPS_LOCK: 20,
			COMMA: 188,
			COMMAND: 91,
			COMMAND_LEFT: 91, // COMMAND
			COMMAND_RIGHT: 93,
			CONTROL: 17,
			DELETE: 46,
			DOWN: 40,
			END: 35,
			ENTER: 13,
			ESCAPE: 27,
			HOME: 36,
			INSERT: 45,
			LEFT: 37,
			MENU: 93, // COMMAND_RIGHT
			NUMPAD_ADD: 107,
			NUMPAD_DECIMAL: 110,
			NUMPAD_DIVIDE: 111,
			NUMPAD_ENTER: 108,
			NUMPAD_MULTIPLY: 106,
			NUMPAD_SUBTRACT: 109,
			PAGE_DOWN: 34,
			PAGE_UP: 33,
			PERIOD: 190,
			RIGHT: 39,
			SHIFT: 16,
			SPACE: 32,
			TAB: 9,
			UP: 38,
			WINDOWS: 91 // COMMAND
		},

		// Scroll page vertically: scroll to 0 to hide iOS address bar, or pass a Y value
		silentScroll: function( ypos ) {
			if ( $.type( ypos ) !== "number" ) {
				ypos = $.mobile.defaultHomeScroll;
			}

			// prevent scrollstart and scrollstop events
			$.event.special.scrollstart.enabled = false;

			setTimeout(function() {
				window.scrollTo( 0, ypos );
				$( document ).trigger( "silentscroll", { x: 0, y: ypos });
			}, 20 );

			setTimeout(function() {
				$.event.special.scrollstart.enabled = true;
			}, 150 );
		},

		// Take a data attribute property, prepend the namespace
		// and then camel case the attribute string
		nsNormalize: function( prop ) {
			if ( !prop ) {
				return;
			}

			return $.camelCase( $.mobile.ns + prop );
		}
	});

	// Mobile version of data and removeData and hasData methods
	// ensures all data is set and retrieved using jQuery Mobile's data namespace
	$.fn.jqmData = function( prop, value ) {
		return this.data( prop ? $.mobile.nsNormalize( prop ) : prop, value );
	};

	$.jqmData = function( elem, prop, value ) {
		return $.data( elem, $.mobile.nsNormalize( prop ), value );
	};

	$.fn.jqmRemoveData = function( prop ) {
		return this.removeData( $.mobile.nsNormalize( prop ) );
	};

	$.jqmRemoveData = function( elem, prop ) {
		return $.removeData( elem, $.mobile.nsNormalize( prop ) );
	};

	$.jqmHasData = function( elem, prop ) {
		return $.hasData( elem, $.mobile.nsNormalize( prop ) );
	};

	// Monkey-patching Sizzle to filter the :jqmData selector
	var oldFind = $.find;

	$.find = function( selector, context, ret, extra ) {
		selector = selector.replace(/:jqmData\(([^)]*)\)/g, "[data-" + ( $.mobile.ns || "" ) + "$1]");

		return oldFind.call( this, selector, context, ret, extra );
	};

	$.extend( $.find, oldFind );

	$.find.matches = function( expr, set ) {
		return $.find( expr, null, null, set );
	};

	$.find.matchesSelector = function( node, expr ) {
		return $.find( expr, null, null, [ node ] ).length > 0;
	};
})( jQuery, this );