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1 // jqm.page.params.js - version 0.1
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2 // Copyright (c) 2011, Kin Blas
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3 // All rights reserved.
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4 //
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5 // Redistribution and use in source and binary forms, with or without
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6 // modification, are permitted provided that the following conditions are met:
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7 // * Redistributions of source code must retain the above copyright
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8 // notice, this list of conditions and the following disclaimer.
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9 // * Redistributions in binary form must reproduce the above copyright
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10 // notice, this list of conditions and the following disclaimer in the
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11 // documentation and/or other materials provided with the distribution.
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12 // * Neither the name of the <organization> nor the
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13 // names of its contributors may be used to endorse or promote products
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14 // derived from this software without specific prior written permission.
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15 //
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16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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19 // DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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20 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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21 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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22 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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23 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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25 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26
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27 (function( $, window, undefined ) {
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28
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29 // Given a query string, convert all the name/value pairs
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30 // into a property/value object. If a name appears more than
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31 // once in a query string, the value is automatically turned
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32 // into an array.
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33 function queryStringToObject( qstr )
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34 {
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35 var result = {},
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36 nvPairs = ( ( qstr || "" ).replace( /^\?/, "" ).split( /&/ ) ),
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37 i, pair, n, v;
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38
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39 for ( i = 0; i < nvPairs.length; i++ ) {
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40 var pstr = nvPairs[ i ];
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41 if ( pstr ) {
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42 pair = pstr.split( /=/ );
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43 n = pair[ 0 ];
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44 v = pair[ 1 ];
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45 if ( result[ n ] === undefined ) {
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46 result[ n ] = v;
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47 } else {
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48 if ( typeof result[ n ] !== "object" ) {
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49 result[ n ] = [ result[ n ] ];
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50 }
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51 result[ n ].push( v );
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52 }
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53 }
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54 }
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55
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56 return result;
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57 }
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58
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59 // The idea here is to listen for any pagebeforechange notifications from
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60 // jQuery Mobile, and then muck with the toPage and options so that query
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61 // params can be passed to embedded/internal pages. So for example, if a
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62 // changePage() request for a URL like:
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63 //
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64 // http://mycompany.com/myapp/#page-1?foo=1&bar=2
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65 //
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66 // is made, the page that will actually get shown is:
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67 //
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68 // http://mycompany.com/myapp/#page-1
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69 //
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70 // The browser's location will still be updated to show the original URL.
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71 // The query params for the embedded page are also added as a property/value
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72 // object on the options object. You can access it from your page notifications
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73 // via data.options.pageData.
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74 $( document ).bind( "pagebeforechange", function( e, data ) {
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75
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76 // We only want to handle the case where we are being asked
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77 // to go to a page by URL, and only if that URL is referring
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78 // to an internal page by id.
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79
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80 if ( typeof data.toPage === "string" ) {
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81 var u = $.mobile.path.parseUrl( data.toPage );
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82 if ( $.mobile.path.isEmbeddedPage( u ) ) {
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83 // The request is for an internal page, if the hash
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84 // contains query (search) params, strip them off the
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85 // toPage URL and then set options.dataUrl appropriately
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86 // so the location.hash shows the originally requested URL
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87 // that hash the query params in the hash.
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88
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89 var u2 = $.mobile.path.parseUrl( u.hash.replace( /^#/, "" ) );
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90 if ( u2.search ) {
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91 if ( !data.options.dataUrl ) {
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92 data.options.dataUrl = data.toPage;
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93 }
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94 data.options.pageData = queryStringToObject( u2.search );
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95 data.toPage = u.hrefNoHash + "#" + u2.pathname;
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96 }
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97 }
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98 }
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99 });
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100
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101 })( jQuery, window );
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102
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103
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104
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105
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106 // http://stackoverflow.com/a/8295488
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107 $(document).bind("pagebeforechange", function( event, data ) {
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108 $.mobile.pageData = (data && data.options && data.options.pageData)
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109 ? data.options.pageData
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110 : {};
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111 });
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