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@gseguin
gseguin committed Sep 15, 2011
2 parents 139ab13 + c541ceb commit 7dc20cd
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150 changes: 150 additions & 0 deletions docs/pages/dynamic-samples/category.php
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<?php
// This is a demo script that takes a single 'id' query param argument and
// returns its associated data as HTML, or, if called via XmlHttpRequest,
// returns its data as JSON.

// In the real-world, this category data would be looked
// up on the fly from some database. For this sample, we
// are just using some static in-memory data.

$category_data = array(
animals => array(
name => "Animals",
description => "All your favorites from aardvarks to zebras.",
items => array(
array(
name => "Pets",
),
array(
name => "Farm Animals",
),
array(
name => "Wild Animals",
)
)
),
colors => array(
name => "Colors",
description => "Fresh colors from the magic rainbow.",
items => array(
array(
name => "Blue",
),
array(
name => "Green",
),
array(
name => "Orange",
),
array(
name => "Purple",
),
array(
name => "Red",
),
array(
name => "Yellow",
),
array(
name => "Violet",
)
)
),
vehicles => array(
name => "Vehicles",
description => "Everything from cars to planes.",
items => array(
array(
name => "Cars",
),
array(
name => "Planes",
),
array(
name => "Construction",
)
)
)
);

// Get the name of the category to display from
// the query params for the script.

$category_name = '';
if ( $_GET[ 'id' ] ) {
$category_name = $_GET[ 'id' ];
}

// Now get the category data, by name, from our in-memory
// dictionary. This is the part where a script normally fetches
// the data from a database.

$category_obj = $category_data[ $category_name ];

// Now figure out how the script is being called. If it's being
// called via XmlHttpRequest, then send the data back as JSON.
// If not, then send it back as a list in an HTML document.

if( $_SERVER[ "HTTP_X_REQUESTED_WITH" ] && $_SERVER[ "HTTP_X_REQUESTED_WITH" ] ==="XMLHttpRequest" ) {
// Data should be written out as JSON.
header("Content-type: application/json");
if ( !$category_obj ) {
echo 'null';
} else {
echo '{"name":"' . $category_obj[ 'name' ]
. '","description":"' . $category_obj[ 'description' ]
. '","items":[';

$arr = $category_obj[ 'items' ];
$count = count($arr);
for ( $i = 0; $i < $count; $i++ ) {
if ( $i ) {
echo ",";
}
echo '{"name":"' . $arr[ $i ][ 'name' ] . '"}';
}
echo "]}";
}
} else {
// Data should be written out as HTML.
header("Content-type: text/html");
?>
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>Vehicles</title>
<link rel="stylesheet" href="../../../themes/default/">
<script src="../../../js/jquery.js"></script>
<script src="../../../js/"></script>
</head>
<body>
<div data-role="page" data-add-back-btn="true">
<div data-role="header"><h1><?php if ( $category_obj ) { echo $category_obj['name']; } else { echo "No Match"; } ?></h1></div>
<div data-role="content">
<?php
if ( !$category_obj ) {
?>
<p>No matches found.</p>
<?php
} else {
?>
<p><?php echo $catgory_object['description']; ?></p>
<ul data-role="listview" data-inset="true">
<?php
$arr = $category_obj[ 'items' ];
$count = count($arr);
for ( $i = 0; $i < $count; $i++ ) {
echo "\t\t\t<li>" . $arr[ $i ][ 'name' ] . "</li>\n";
}
?>
</ul>
<?php
}
?>
</div>
</div>
</body>
</html>
<?php }
210 changes: 68 additions & 142 deletions docs/pages/dynamic-samples/sample-reuse-page-external.html
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Expand Up @@ -7,164 +7,90 @@
<link rel="stylesheet" href="../../../themes/default/">
<script src="../../../js/jquery.js"></script>
<script src="../../../js/"></script>
<script>
<script type="text/javascript">

// Some sample categorized data. This data is in-memory
// for demonstration purposes, but could be loaded dynamically
// via ajax.
var categoryData = {
animals: {
name: "Animals",
description: "All your favorites from aardvarks to zebras.",
items: [
{
name: "Pets",
},
{
name: "Farm Animals",
},
{
name: "Wild Animals",
}
]
},
colors: {
name: "Colors",
description: "Fresh colors from the magic rainbow.",
items: [
{
name: "Blue",
},
{
name: "Green",
},
{
name: "Orange",
},
{
name: "Purple",
},
{
name: "Red",
},
{
name: "Yellow",
},
{
name: "Violet",
}
]
},
vehicles: {
name: "Vehicles",
description: "Everything from cars to planes.",
items: [
{
name: "Cars",
},
{
name: "Planes",
},
{
name: "Construction",
}
]
}
};

// Load the data for a specific category, based on
// Load the JSON data for a specific category, based on
// the URL passed in. Generate markup for the items in the
// category, inject it into an embedded page, and then make
// that page the current active page.
function showCategory( url, options )
{
var categoryName = url.replace(/^.*\/|\.html$/g, ""),

// Get the object that represents the category we
// are interested in. Note, that at this point we could
// instead fire off an ajax request to fetch the data, but
// for the purposes of this sample, it's already in memory.
category = categoryData[ categoryName ],

// The pages we use to display our content are already in
// the DOM. The id of the page we are going to write our
// content into is category-items
pageSelector = "#category-items";

if ( category ) {
// Get the page we are going to dump our content into.
var $page = $( pageSelector ),

// Get the header for the page.
$header = $page.children( ":jqmData(role=header)" ),

// Get the content area element for the page.
$content = $page.children( ":jqmData(role=content)" ),

// The markup we are going to inject into the content
// area of the page.
markup = "<p>" + category.description + "</p><ul data-role='listview' data-inset='true'>",

// The array of items for this category.
cItems = category.items,

// The number of items in the category.
numItems = cItems.length;

// Generate a list item for each item in the category
// and add it to our markup.
for ( var i = 0; i < numItems; i++ ) {
markup += "<li>" + cItems[i].name + "</li>";
$.getJSON( url, function( category ) {
if ( category ) {
// Get the page we are going to dump our content into.
var $page = $( "#category-items" ),

// Get the header for the page.
$header = $page.children( ":jqmData(role=header)" ),

// Get the content area element for the page.
$content = $page.children( ":jqmData(role=content)" ),

// The markup we are going to inject into the content
// area of the page.
markup = "<p>" + category.description + "</p><ul data-role='listview' data-inset='true'>",

// The array of items for this category.
cItems = category.items,

// The number of items in the category.
numItems = cItems.length;

// Generate a list item for each item in the category
// and add it to our markup.
for ( var i = 0; i < numItems; i++ ) {
markup += "<li>" + cItems[i].name + "</li>";
}
markup += "</ul>";

// Find the h1 element in our header and inject the name of
// the category into it.
$header.find( "h1" ).html( category.name );

// Inject the category items markup into the content element.
$content.html( markup );

// Pages are lazily enhanced. We call page() on the page
// element to make sure it is always enhanced before we
// attempt to enhance the listview markup we just injected.
// Subsequent calls to page() are ignored since a page/widget
// can only be enhanced once.
$page.page();

// Enhance the listview we just injected.
$content.find( ":jqmData(role=listview)" ).listview();

// We don't want the data-url of the page we just modified
// to be the url that shows up in the browser's location field,
// so set the dataUrl option to the URL for the category
// we just loaded.
options.dataUrl = url;

// Now call changePage() and tell it to switch to
// the page we just modified.
$.mobile.changePage( $page, options );
}
markup += "</ul>";

// Find the h1 element in our header and inject the name of
// the category into it.
$header.find( "h1" ).html( category.name );

// Inject the category items markup into the content element.
$content.html( markup );

// Pages are lazily enhanced. We call page() on the page
// element to make sure it is always enhanced before we
// attempt to enhance the listview markup we just injected.
// Subsequent calls to page() are ignored since a page/widget
// can only be enhanced once.
$page.page();

// Enhance the listview we just injected.
$content.find( ":jqmData(role=listview)" ).listview();

// We don't want the data-url of the page we just modified
// to be the url that shows up in the browser's location field,
// so set the dataUrl option to the URL for the category
// we just loaded.
options.dataUrl = url;

// Now call changePage() and tell it to switch to
// the page we just modified.
$.mobile.changePage( $page, options );
}
});
}


// Listen for any attempts to call changepage.
$(document).bind( "pagebeforechange", function( e, data ) {
// We only want to handle changepage calls where the caller is
// asking us to load a page by URL.
var u = data.toPage;
if ( typeof u === "string" ) {
if ( typeof data.toPage === "string" ) {
// We are being asked to load a page by URL, but we only
// want to handle URLs that request the data for a specific
// category.

if ( $.mobile.path.isExternal( u ) && u.match( /\/([^\/\.]+\.html)/ ) ) {

var u = $.mobile.path.parseUrl( data.toPage );
if ( u.pathname.search("category.php") !== -1 ) {
// We're being asked to display the items for a specific category.
// Call our internal method that builds the content for the category
// on the fly based on our in-memory category data structure.
showCategory( u, data.options );

showCategory( u.href, data.options );

// Make sure to tell changepage we've handled this call so it doesn't
// have to do anything.
e.preventDefault();
}
}
Expand All @@ -179,13 +105,13 @@
<div data-role="content">
<h2>Select a Category Below:</h2>
<ul data-role="listview" data-inset="true">
<li><a href="animals.html">Animals</a></li>
<li><a href="colors.html">Colors</a></li>
<li><a href="vehicles.html">Vehicles</a></li>
<li><a href="category.php?id=animals">Animals</a></li>
<li><a href="category.php?id=colors">Colors</a></li>
<li><a href="category.php?id=vehicles">Vehicles</a></li>
</ul>
</div>
</div>
<div id="category-items" data-role="page">
<div id="category-items" data-role="page" data-add-back-btn="true">
<div data-role="header"><h1></h1></div>
<div data-role="content"></div>
</div>
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