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author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 23 Nov 2015 17:02:42 +0100
parents b05eb8708aee
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// jqm.page.params.js - version 0.1
// Copyright (c) 2011, Kin Blas
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the <organization> nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

(function( $, window, undefined ) {

// Given a query string, convert all the name/value pairs
// into a property/value object. If a name appears more than
// once in a query string, the value is automatically turned
// into an array.
function queryStringToObject( qstr )
{
	var result = {},
		nvPairs = ( ( qstr || "" ).replace( /^\?/, "" ).split( /&/ ) ),
		i, pair, n, v;

	for ( i = 0; i < nvPairs.length; i++ ) {
		var pstr = nvPairs[ i ];
		if ( pstr ) {
			pair = pstr.split( /=/ );
			n = pair[ 0 ];
			v = pair[ 1 ];
			if ( result[ n ] === undefined ) {
				result[ n ] = v;
			} else {
				if ( typeof result[ n ] !== "object" ) {
					result[ n ] = [ result[ n ] ];
				}
				result[ n ].push( v );
			}
		}
	}

	return result;
}

// The idea here is to listen for any pagebeforechange notifications from
// jQuery Mobile, and then muck with the toPage and options so that query
// params can be passed to embedded/internal pages. So for example, if a
// changePage() request for a URL like:
//
//    http://mycompany.com/myapp/#page-1?foo=1&bar=2
//
// is made, the page that will actually get shown is:
//
//    http://mycompany.com/myapp/#page-1
//
// The browser's location will still be updated to show the original URL.
// The query params for the embedded page are also added as a property/value
// object on the options object. You can access it from your page notifications
// via data.options.pageData.
$( document ).bind( "pagebeforechange", function( e, data ) {

	// We only want to handle the case where we are being asked
	// to go to a page by URL, and only if that URL is referring
	// to an internal page by id.

	if ( typeof data.toPage === "string" ) {
		var u = $.mobile.path.parseUrl( data.toPage );
		if ( $.mobile.path.isEmbeddedPage( u ) ) {
			// The request is for an internal page, if the hash
			// contains query (search) params, strip them off the
			// toPage URL and then set options.dataUrl appropriately
			// so the location.hash shows the originally requested URL
			// that hash the query params in the hash.

			var u2 = $.mobile.path.parseUrl( u.hash.replace( /^#/, "" ) );
			if ( u2.search ) {
				if ( !data.options.dataUrl ) {
					data.options.dataUrl = data.toPage;
				}
				data.options.pageData = queryStringToObject( u2.search );
				data.toPage = u.hrefNoHash + "#" + u2.pathname;
			}
		}
	}
});

})( jQuery, window );




// http://stackoverflow.com/a/8295488
$(document).bind("pagebeforechange", function( event, data ) {
  $.mobile.pageData = (data && data.options && data.options.pageData)
    ? data.options.pageData
    : {};

  $.mobile.pageData.active = data.toPage[0].id;
});