chapter: A Complete Webapp
==================
CACHE MANIFEST
CACHE:
# jQuery Mobile's files
jquery.js
jquery.mobile.js
jquery.mobile.css
images/ajax-loader.png
images/icons-18-black.png
images/icons-18-white.png
images/icons-36-black.png
images/icons-36-white.png
# HTML documents
# index.html is always cached implicitly
feedback.html
# Custom script and CSS
index.js
index.css
# Custom images
logo.png
sponsors.png
background.png
# We don't need to cache iOS icons or launch image as the
# platform will cache it by itself
NETWORK:
# We will go to the network only for the JSON file
# and the script that will receive the feedback
# replace mobilexweb.com with your own domain
http://mobilexweb.com/jqmbook/sessions.json
http://mobilexweb.com/jqmbook/feedback.php
====================================
====================================
/* Some styles for header */
.ui-header {
background-color: #69C;
background-image: url('images/background.png');
background-position: top right;
background-repeat: no-repeat
}
/* Some styles for offline installation process */
#console, #consoleInstall {
background-color: #FF6;
border-radius: 10px;
-webkit-border-radius: 10px;
padding: 5px;
margin: 0;
text-align: center;
border: 1px solid #CCC;
font-size: small;
}
/* Home's content area */
#home [data-role=content] {
background-color: white;
text-align: center;
}
/* Buttons */
.openWithoutInstall {
margin-top: 50px;
display: block;
}
/* Navbar text */
[data-role=navbar] .ui-btn-text {
font-size: smaller;
}
====================================
{
"slots":
[
// Some slots are special times –opening, breaks, lunch, etc.-
{ "id": 1, "time": "09:00", "message": "Opening" },
// Some slots are session times
{ "id": 2, "time": "09:20"}
],
"sessions":
[
{ "id": 1, "title": "A great session", "timeId": 2,
"description": "...", "speaker": "...", "room": "..." }
]
}
====================================
var data;
$(document).bind("mobileinit", function() {
if (navigator.platform=="iPhone" || navigator.platform=="iPad" ||
navigator.platform=="iPod" || navigator.platform=="iPad" ||
navigator.platform=="iPhone Simulator" ) {
// It's an iOS device, we check if we are in chrome-less mode
if (!navigator.standalone) {
showIOSInvitation();
}
}
/* We capture the sessions page load to check dynamic session data */
$("#sessions").live("pageshow", function() {
if (window.localStorage!=undefined) {
// HTML5 Local Storage is available
if (window.localStorage.getItem("data")!=undefined &&
window.localStorage.getItem("data")!=null) {
// We first load the offline stored session
// information while checking updates
showSessions(window.localStorage.getItem("data"));
$("#console").html("Checking data update");
} else {
// There is no local storage cache
$("#console").html("Downloading session data...");
}
} else {
// No HTML5 Local Storage, downloading JSON every time
$("#console").html("Downloading session data...");
}
loadSessionsAjax();
});
});
function showIOSInvitation() {
setTimeout(function() {
// We hide the saving information until the whole webapp is downloaded
$("#install").hide();
// We open the iOS instructions for adding to the homepage
$.mobile.changePage($("#ios"), {transition: "slideup",
changeHash: false});
}, 100);
// We capture HTML5 Application Cache events to provide useful information
if (window.applicationCache!=undefined) {
window.applicationCache.addEventListener('checking', function() {
$("#consoleInstall").html("Checking version");
});
window.applicationCache.addEventListener('downloading', function() {
$("#consoleInstall").html("Downloading application.
Please wait...");
});
window.applicationCache.addEventListener('cached', function() {
$("#consoleInstall").html("Application downloaded");
$("#install").show();
});
window.applicationCache.addEventListener('updateready', function() {
$("#consoleInstall").html("Application downloaded");
$("#install").show();
});
window.applicationCache.addEventListener('noupdate', function() {
$("#consoleInstall").html("Application downloaded");
$("#install").show();
});
window.applicationCache.addEventListener('error', function(e) {
$("#consoleInstall").html("There was an error downloading this
app");
});
window.applicationCache.addEventListener('obsolete', function(e) {
$("#consoleInstall").html("There was an error downloading this
app");
});
}
}
function loadSessionsAjax() {
// We bring the JSON as text so it's easy to store in Local Storage
$.ajax(/*"http://www.mobilexweb.com/congress/*/"sessions.json", {
complete: function(xhr) {
if (window.localStorage!=undefined) {
if (window.localStorage.getItem("data")!=undefined &&
window.localStorage.getItem("data")!=null) {
if (xhr.responseText==window.localStorage.getItem("data")) {
// The new session downloaded is the same as the
// one in screen
$("#console").html("Schedule is updated");
} else {
// There is an update on the session data
if (confirm("There is an update in the schedule
available, do you want to load it now?")) {
$("#console").html("Schedule is updated");
showSessions(xhr.responseText);
} else {
$("#console").html("Schedule will be
updated later");
}
}
} else {
// Local Storage is available but no previous
// cache found
$("#console").html("Schedule is updated");
showSessions(xhr.responseText);
}
} else {
// No Local Storage, show the info without saving
$("#console").html("Schedule is updated");
showSessions(xhr.responseText);
}
},
dataType: 'text',
error: function() {
$("#console").html("Schedule update could not be downloaded");
}
});
}
var isFirstLoad = true;
function showSessions(string) {
if (window.JSON!=undefined) {
data = JSON.parse(string);
} else {
data = eval("(" + string + ")");
}
if (window.localStorage!=undefined) {
// Save the new data as string
window.localStorage.setItem("data", string);
}
$("#slots").html("");
var html = "";
for (var i=0; i" +
data.slots[i].time + ": " + data.slots[i].message + "";
} else {
// This is a normal slot with sessions
html += "
";
}
}
$("#slots").html(html);
if (isFirstLoad) {
$("#slots").listview();
isFirstLoad = false;
} else {
$("#slots").listview('refresh');
}
}
function showDetails(index) {
$("#details h1").html("Sessions of " + data.slots[index].time);
var html = ""
for (var i=0; i";
html += "
" + data.sessions[i].title + "
";
html +="
" + data.sessions[i].room + "
";
html += "
Speaker/s: " + data.sessions[i].speaker;
html += "
";
html += "
" + data.sessions[i].description + "
";
html += "";
}
}
// We provide the information to the details page
$("#sessionInfo").html(html);
$("#sessionInfo div").collapsible();
// We change to the details page
$.mobile.changePage($("#details"));
}
function refresh() {
$("#console").html("Verifying...");
loadSessionsAjax();
}
function openWithoutInstallation() {
// We remove the dialog-like iOS installation page
$.mobile.changePage($("#home"), {transition:"slideup", reverse:true});
}
==================