How to import Clipboard.js library into Google App Script? - javascript

Since manipulating clipboard is forbidden in Google App, I want to find a workaround by using Clipboard.js library.
My questions are:
1. How should I import a Clipboard.js library to Google App Script?
2. And how to call the functions in other pages (eg. trying to call the function calculateWeight() from BMI.gs in index.html?
What I've tried:
I've tried to paste the source code of the Clipboard.js into a file called Clipboard.js.html and put everything inside the tag.
What I want achieve:
Copy a text string with a click on the "COPY" button.
>>what I want to achieve
I've spent a few hours looking for solutions but still can't find related info. Any help would be greatly appreciated. Thank you!

Your script can have more than one html file, and per the HTML Services: Best Practices, you should have your HTML, CSS and (client side) Javascript in separate files. So in your case your index.html file will be all the HTML code and will have a couple lines added. It could start as shown below:
<!DOCTYPE html>
<html>
<head>
<script src="//cdnjs.cloudflare.com/ajax/libs/clipboard.js/1.4.0/clipboard.min.js"></script>
<?!= include('myCSS'); ?>
<title>Give it a Title</title>
</head>
<body>
...
All the Body stuff
...
</body>
<?!= include('myScript'); ?>
</html>
At the top of this is a line to include clipboard JS from a hosted location. I found that via a web search for clipboard.js. This is where I get access to the clipboard.js library There is a line right underneath this:
<?!= include('myCSS'); ?>
In a server side file (.gs file) I have the following so that I can include other HTML files from the one I load in my doGet() function:
function include(filename) {
return HtmlService.createTemplateFromFile(filename).evaluate()
.getContent();
}
I am loading the HTML in my doGet using this code to use Templated HTML:
function doGet(passed) {
if(passed.parameter.festival && passed.parameter.year){
passedParameter = passed.parameter.festival + ' ' + passed.parameter.year;
}
var result=HtmlService.createTemplateFromFile('index').evaluate()
.setTitle('My Title')
.setWidth(1285)
.setXFrameOptionsMode(HtmlService.XFrameOptionsMode.ALLOWALL);
return result;
}
Under the File pull-down you create a new HTML file called myCSS and add your CSS there:
<style>
h1 {
color: #0F6B5E;
font-size: 300%;
text-align:center;
vertical-align: middle;
font-family: 'Raleway', sans-serif;
font-weight:bold;
padding-top: 0.5em;
padding-bottom: 0.5em;
}
</style>
Create a new HTML file called myScript and add the screipt you want used in your HTML page here. This is the Client Side script as opposed to SErver Side script, which is all in the Script files. (HTML files will show the .html extension in the list of files while server side Script files will have .gs) If your calculateWeight() function is used to calculate and display items in the HTML page, then place it in this file:
<script>
//Script to load after the page has loaded
$(function() {
google.script.run.withSuccessHandler(showMenuYear).withFailureHandler(loadFailed).getDropDownContent();
});
calculateWeight() {
//code goes here
}
function showMenuYear(menuItems) {
var list = $('#optionListYear');
var desiredValue = '<?!= passedParameter ?>';
list.find('option').remove(); // remove existing contents
list.append('<option value="-1">Select a Festival and Year</option>');
for (var i = 0; i < menuItems.length ; i++) {
list.append('<option value=' + menuItems[i].sheetrow + '>' + menuItems[i].fullFestival + '</option>');
if (menuItems[i].fullFestival === desiredValue){
list.val(menuItems[i].sheetrow);
}
}
setFormList();
}
function setFormList() {
// alert('In setFormList ');
// alert($('#optionListYear').val());
var replacement = document.getElementById("OverallGrid");
replacement.innerHTML = "Retrieving Registrations...";
if ($('#optionListYear').val() === "-1") {
// if(passedData.year && passedData.festival){replacement.innerHTML = passedData.festival & " " & passedData.year;};
replacement.innerHTML = "Select a Festival/Year above.";
return;
}
google.script.run.withSuccessHandler(showRegistrationsTable).withFailureHandler(loadFailed).getValidRegistrations($('#optionListYear').val());
}
function loadFailed(error){
var replacement = document.getElementById("OverallGrid");
var displayMessage = "Error loading data: " + error.name + ' ' + error.message;
if (error.message.includes("is missing (perhaps it was deleted?)") ) {
displayMessage = "You do not have access to these registrations."
}
replacement.innerHTML = displayMessage;
}
</script>
In this code, the lines starting with google.script.run will run a Server Side function, passing a variable to the function if needed. If Successful, the Client side function defined in withSuccessHandler(successFunction) will be used with any returned data being passed. So in my example the showMenuYear(menuItems) function is run on the Client side with menuItems being set to the returned value from the Server side function getDropDownContent(). If the Server side returns an error, the loadFailed(error) function is executed. This all comes from the line:
google.script.run.withSuccessHandler(showMenuYear).withFailureHandler(loadFailed).getDropDownContent();

Related

how to append html page inside current page using google web app?

I know how to include CSS or JS files using app script in a web script. but that way includes files content on page lode.
My question is it possible to include partial html page inside the currently opened page?
app script to include CSS or JS
/* #Include JavaScript & CSS & HTML-Partial-Views */
function include(filename) {
return HtmlService.createHtmlOutputFromFile(filename).getContent();
}
and I use like this
<?!= include('Css'); ?>
and here is my attempt.
html
<button onclick="getList("users")">show some html content</button>
<div id="users"></div>
<script>
function getList(users){
var listUsers = google.script.run.showHtml(users);
// how to return showHtml result [list of users]
for (var i; i <= listUsers.length; 1++)
{
document.querySelector("#users").innerHTML += <div>listUsers[i]</div>;
}
}
</script>
gs
function users(sheetName, pageName){
// get users from sheet
var ss= SpreadsheetApp.openById("435yh35h45b35nh6hg5bwh455j");
var dataSheet = ss.getSheetByName(sheetName);
var dataRange = dataSheet.getDataRange().getValues();
return dataRange;
}
From one of the code snippets
// how to return showHtml result [list of users]
Try this:
<button onclick="getList('users')">show some html content</button>
<div id="users"></div>
<script>
function getList(users){
var listUsers = google.script.run
.withSuccessHandler((listUsers) => {
let list = '';
for (var i; i < listUsers.length; i++) {
list += `<div>${listUsers[i]}</div>\n`;
}
document.querySelector("#users").innerHTML = list;
})
.showHtml(users);
}
</script>
Changes done
Replaced "users" by 'users'
Added withSuccessHandler with an arrow function as callback.
The arrow function build a string using a for statement (because it was used in the original code) including a div tag using a template literal.

How to render HTML file using JavaScript [duplicate]

I want home.html to load in <div id="content">.
<div id="topBar"> HOME </div>
<div id ="content"> </div>
<script>
function load_home(){
document.getElementById("content").innerHTML='<object type="type/html" data="home.html" ></object>';
}
</script>
This works fine when I use Firefox. When I use Google Chrome, it asks for plug-in. How do I get it working in Google Chrome?
I finally found the answer to my problem. The solution is
function load_home() {
document.getElementById("content").innerHTML='<object type="text/html" data="home.html" ></object>';
}
Fetch API
function load_home (e) {
(e || window.event).preventDefault();
fetch("http://www.yoursite.com/home.html" /*, options */)
.then((response) => response.text())
.then((html) => {
document.getElementById("content").innerHTML = html;
})
.catch((error) => {
console.warn(error);
});
}
XHR API
function load_home (e) {
(e || window.event).preventDefault();
var con = document.getElementById('content')
, xhr = new XMLHttpRequest();
xhr.onreadystatechange = function (e) {
if (xhr.readyState == 4 && xhr.status == 200) {
con.innerHTML = xhr.responseText;
}
}
xhr.open("GET", "http://www.yoursite.com/home.html", true);
xhr.setRequestHeader('Content-type', 'text/html');
xhr.send();
}
based on your constraints you should use ajax and make sure that your javascript is loaded before the markup that calls the load_home() function
Reference - davidwalsh
MDN - Using Fetch
JSFIDDLE demo
You can use the jQuery load function:
<div id="topBar">
HOME
</div>
<div id ="content">
</div>
<script>
$(document).ready( function() {
$("#load_home").on("click", function() {
$("#content").load("content.html");
});
});
</script>
Sorry. Edited for the on click instead of on load.
Fetching HTML the modern Javascript way
This approach makes use of modern Javascript features like async/await and the fetch API. It downloads HTML as text and then feeds it to the innerHTML of your container element.
/**
* #param {String} url - address for the HTML to fetch
* #return {String} the resulting HTML string fragment
*/
async function fetchHtmlAsText(url) {
return await (await fetch(url)).text();
}
// this is your `load_home() function`
async function loadHome() {
const contentDiv = document.getElementById("content");
contentDiv.innerHTML = await fetchHtmlAsText("home.html");
}
The await (await fetch(url)).text() may seem a bit tricky, but it's easy to explain. It has two asynchronous steps and you could rewrite that function like this:
async function fetchHtmlAsText(url) {
const response = await fetch(url);
return await response.text();
}
See the fetch API documentation for more details.
I saw this and thought it looked quite nice so I ran some tests on it.
It may seem like a clean approach, but in terms of performance it is lagging by 50% compared by the time it took to load a page with jQuery load function or using the vanilla javascript approach of XMLHttpRequest which were roughly similar to each other.
I imagine this is because under the hood it gets the page in the exact same fashion but it also has to deal with constructing a whole new HTMLElement object as well.
In summary I suggest using jQuery. The syntax is about as easy to use as it can be and it has a nicely structured call back for you to use. It is also relatively fast. The vanilla approach may be faster by an unnoticeable few milliseconds, but the syntax is confusing. I would only use this in an environment where I didn't have access to jQuery.
Here is the code I used to test - it is fairly rudimentary but the times came back very consistent across multiple tries so I would say precise to around +- 5ms in each case. Tests were run in Chrome from my own home server:
<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
</head>
<body>
<div id="content"></div>
<script>
/**
* Test harness to find out the best method for dynamically loading a
* html page into your app.
*/
var test_times = {};
var test_page = 'testpage.htm';
var content_div = document.getElementById('content');
// TEST 1 = use jQuery to load in testpage.htm and time it.
/*
function test_()
{
var start = new Date().getTime();
$(content_div).load(test_page, function() {
alert(new Date().getTime() - start);
});
}
// 1044
*/
// TEST 2 = use <object> to load in testpage.htm and time it.
/*
function test_()
{
start = new Date().getTime();
content_div.innerHTML = '<object type="text/html" data="' + test_page +
'" onload="alert(new Date().getTime() - start)"></object>'
}
//1579
*/
// TEST 3 = use httpObject to load in testpage.htm and time it.
function test_()
{
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
{
content_div.innerHTML = xmlHttp.responseText;
alert(new Date().getTime() - start);
}
};
start = new Date().getTime();
xmlHttp.open("GET", test_page, true); // true for asynchronous
xmlHttp.send(null);
// 1039
}
// Main - run tests
test_();
</script>
</body>
</html>
try
async function load_home(){
content.innerHTML = await (await fetch('home.html')).text();
}
async function load_home() {
let url = 'https://kamil-kielczewski.github.io/fractals/mandelbulb.html'
content.innerHTML = await (await fetch(url)).text();
}
<div id="topBar"> HOME </div>
<div id="content"> </div>
When using
$("#content").load("content.html");
Then remember that you can not "debug" in chrome locally, because XMLHttpRequest cannot load -- This does NOT mean that it does not work, it just means that you need to test your code on same domain aka. your server
You can use the jQuery :
$("#topBar").on("click",function(){
$("#content").load("content.html");
});
$("button").click(function() {
$("#target_div").load("requesting_page_url.html");
});
or
document.getElementById("target_div").innerHTML='<object type="text/html" data="requesting_page_url.html"></object>';
<script>
var insertHtml = function (selector, argHtml) {
$(document).ready(function(){
$(selector).load(argHtml);
});
var targetElem = document.querySelector(selector);
targetElem.innerHTML = html;
};
var sliderHtml="snippets/slider.html";//url of slider html
var items="snippets/menuItems.html";
insertHtml("#main",sliderHtml);
insertHtml("#main2",items);
</script>
this one worked for me when I tried to add a snippet of HTML to my main.html.
Please don't forget to add ajax in your code
pass class or id as a selector and the link to the HTML snippet as argHtml
There is this plugin on github that load content into an element. Here is the repo
https://github.com/abdi0987/ViaJS
load html form a remote page ( where we have CORS access )
parse the result-html for a specific portion of the page
insert that part of the page in a div on current-page
//load page via jquery-ajax
$.ajax({
url: "https://stackoverflow.com/questions/17636528/how-do-i-load-an-html-page-in-a-div-using-javascript",
context: document.body
}).done(function(data) {
//the previous request fails beceaus we dont have CORS on this url.... just for illlustration...
//get a list of DOM-Nodes
var dom_nodes = $($.parseHTML(data));
//find the question-header
var content = dom_nodes.find('#question-header');
//create a new div and set the question-header as it's content
var newEl = document.createElement("div");
$(newEl).html(content.html());
//on our page, insert it in div with id 'inserthere'
$("[id$='inserthere']").append(newEl);
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<p>part-result from other page:</p>
<div id="inserthere"></div>
Use this simple code
<div w3-include-HTML="content.html"></div>
<script>w3.includeHTML();</script>
</body>```
This is usually needed when you want to include header.php or whatever page.
In Javascript it's easy especially if you have HTML page and don't want to use php include function but at all you should write php function and add it as Javascript function in script tag.
In this case you should write it without function followed by name Just. Script rage the function word and start the include header.php
i.e convert the php include function to Javascript function in script tag and place all your content in that included file.
I use jquery, I found it easier
$(function() {
$("#navigation").load("navbar.html");
});
in a separate file and then load javascript file on html page
showhide.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function showHide(switchTextDiv, showHideDiv)
{
var std = document.getElementById(switchTextDiv);
var shd = document.getElementById(showHideDiv);
if (shd.style.display == "block")
{
shd.style.display = "none";
std.innerHTML = "<span style=\"display: block; background-color: yellow\">Show</span>";
}
else
{
if (shd.innerHTML.length <= 0)
{
shd.innerHTML = "<object width=\"100%\" height=\"100%\" type=\"text/html\" data=\"showhide_embedded.html\"></object>";
}
shd.style.display = "block";
std.innerHTML = "<span style=\"display: block; background-color: yellow\">Hide</span>";
}
}
</script>
</head>
<body>
<a id="switchTextDiv1" href="javascript:showHide('switchTextDiv1', 'showHideDiv1')">
<span style="display: block; background-color: yellow">Show</span>
</a>
<div id="showHideDiv1" style="display: none; width: 100%; height: 300px"></div>
</body>
</html>
showhide_embedded.html
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript">
function load()
{
var ts = document.getElementById("theString");
ts.scrollIntoView(true);
}
</script>
</head>
<body onload="load()">
<pre>
some text 1
some text 2
some text 3
some text 4
some text 5
<span id="theString" style="background-color: yellow">some text 6 highlight</span>
some text 7
some text 8
some text 9
</pre>
</body>
</html>
If your html file resides locally then go for iframe instead of the tag. tags do not work cross-browser, and are mostly used for Flash
For ex : <iframe src="home.html" width="100" height="100"/>

Google App Script Bounded to Spreadsheet

what I' trying to accomplish is a Google Spreadsheet for a project management. I've got lots of cells in a grid where a user should select either the item was completed or not. Now this spreadsheet would be available only to a Project Manager. The way I imagined the process would work was that Project Manager selects particular cells and assigns them to a technician's email address. Script would then generate mobile friendly html UI and send it to the technician (I thought of Google forms but I want to create more customized UI). Technician would then select a checkbox after completing a task which would at the same time update the spreadsheet. Next time technician would open the UI it would populate all the checkboxes that previously were selected.
The only way I've found that I could make it work was a google script web app bounded to a spreadsheet. I've created a test HTML file and .gs file:
.html file
<head>
<base target="_top">
<link rel="stylesheet" href="https://ssl.gstatic.com/docs/script/css/add-ons1.css">
</head>
<body>
<h1> Web App Test </h1>
<input type="button" value="Click Me" id="buttonclicked" onclick="getSomeData()"/>
<div id="output" class="current">output</div>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js">
</script>
<script>
function getSomeData()
{
google.script.run
.withSuccessHandler(onSuccess)
.withFailureHandler(showError)
.testForWebApp();
myLog("in WebAppTest.html getSomeData()");
}
function onSuccess(testParam)
{
var div = document.getElementById('output');
if (sectionName == null)
div.innerHTML = "<p style='color:red;'>You didn't hit the script</p>";
else
div.innerHTML = "<p style='color:white;'>" + testParam + "</p>";
}
function showError()
{
var div = document.getElementById('output');
div.innerHTML = "<p style='color:red;'>You didn't hit the script</p>";
}
</script>
</body>
and .gs file:
function doGet()
{
return HtmlService.createHtmlOutputFromFile('WebAppTest')
.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function testForWebApp()
{
myLog("In testForWebApp()");
var msg = "Yep you hit the script!";
return msg;
}
function myLog(log)
{
//log = 'test';
Logger.log(log);
var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
var sheet = spreadsheet.getSheetByName('log');
var lastRow = sheet.getLastRow();
sheet.insertRowBefore(1);
var newLogDateRange = sheet.getRange(1, 1);
var newLogTextRange = sheet.getRange(1, 2);
var now = new Date();
newLogDateRange.setValue(now);
newLogTextRange.setValue(log)
}
When I published the app and followed the generated link I saw my html page with a Click Me button. The click event ran the getSomeData() function which called google.script.run function. The server side .testForWebApp() gotten executed because I've gotten a log entry from myLog() but the .withSuccessHandler or .withFailureHandler were never called. At the same time the myLog() that should be executed after google.script.run never run either.
I definitely don't understand how it works and suspect that if I publish a script as a web app the HTML is not bounded to the script anymore, but I couldn't find any information about it online.
Thanks for your help.
Firstly, you cannot call server-side myLog() function from your client side javascript unless you call it using google.script.run.myLog() Therefore
myLog("in WebAppTest.html getSomeData()");
in your getSomeData() doesnt log anything in your google sheet
Secondly, this code in function onSuccess(testParam)
if (sectionName == null)
is causing your function to terminate prematurely, since there is no variable called sectionName defined.
Note: You can monitor all these errors in the console of your web browser.
Below is the modified code that should work as you intend it to
Final code:
Web App Test
output
function getSomeData()
{
google.script.run
.withSuccessHandler(onSuccess)
.withFailureHandler(showError)
.testForWebApp();
console.log("in WebAppTest.html getSomeData()"); //Log it on the browser console
}
function onSuccess(testParam)
{
var div = document.getElementById('output');
if (testParam == null) // Changed it to testParam from sectionName, to check the value returned from testWebApp()
div.innerHTML = "<p style='color:red;'>You didn't hit the script</p>";
else
div.innerHTML = "<p style='color:black;'>Success:" + testParam + "</p>";
}
function showError()
{
var div = document.getElementById('output');
div.innerHTML = "<p style='color:red;'>You didn't hit the script</p>";
}
Edit
One last note, the below code would make the return text invisible as the text and background color would be the same color (white):
div.innerHTML = "<p style='color:white;'>Success:" + testParam + "</p>";
hence changed the text color to black in the final code
Hope that helps!
Try redeploying the web app, but under a new project version.

Javascript: The value of the property is null or undefined, not a Function object

Okay, Stumped. I just use code to show possibilities to customers (am self-employed).
Trying to show get-selected-text-from-IE11-Browser. Don't need cross-Browser and expert stuff just yet (if customer goes ahead).
Have tried to write a javascript function to get the selected text from the browser. This has worked fine when called direct (put function into Console via F12 facility) and this returns the selection. But when calling from Context Menu HTM script it fails with the mentioned error. The code to get the selected text comes from another context menu script that works fine when all the code is in the one HTM script (cmGoogleMapSelection_1.htm). I was just trying to be a little more efficient with reuse and learn a little more myself. I will return to in-line code if I can't resolve the issue (with help from your marvellous selves).
Keep getting the following error reported in the HTM script :
The value of the property 'myGetSelectedText' is null or undefined, not a Function object.
Have read a number of posts and tried to ensure that I have covered their suggestions. Still stumped, any help appreciated.
The code, first the 'function', then the 'script'; both script file and function file are in the same local file folder (please excuse the Debug code - gulp):
fn_myGetSelectedText.js:
function myGetSelectedText(pDefault) {
var zDbug = 1;
var zDbugMsg = "Debug: ";
var zSelection = "";
if (zDbug) {alert(zDbugMsg + "Starting Function 'myGetSelectedText' from fn_myGetSelectedText.js");}
zSelection = "" + window.getSelection().toString();
if (zDbug) {alert(zDbugMsg + " Selection= '" + zSelection + "'");}
if (zSelection == "") {
zSelection = pDefault;
alert(zDbugMsg + "Null selection, using: " + zDefault + " !");
}
return zSelection;
}//EndOf: Function -----
cmGoogleMapSelection_2.htm:
<!-- saved from url=(0016)http://localhost -->
<script type="text/javascript" src="fn_myGetSelectedText.js"></script>
<script type="text/javascript">
//- zDbug: 0 = false = no messages; 1 = true = show messages -----
var zDbug = 1;
var zDbugMsg = "Debug: ";
if (zDbug) {alert(zDbugMsg + "Starting cmGoogleMap_Selection2.htm V14");}
//- Google Maps stem URL & default location -----
var zMaps = "http://maps.google.co.uk/maps?hl=en&q=";
var zDefault = "+London";
var zSelection = myGetSelectedText(zDefault); //- Error occurs here <<<<<<<<<<<
if (zDbug) {alert(zDbugMsg + " Selection= '" + zSelection + "'");}
//- Build Maps URL -----
var zGo = zMaps + zSelection;
//- Open new Maps window -----
if (zDbug) {alert(zDbugMsg + "Issuing Window.Open on URL: " + zGo);}
window.open(zGo, "_blank");
//- Close this window -----
window.close()
</script>
<!-- Just to put something into the main code window so I know which one it is -->
<style>
p {font-family: "Lucida Console"; color: Red; font-size: 16pt;}
</style>
<p> >>-- Map Selected Text Function --<< <br>
>>-- . . 'myGetSelectedText' . . --<< </p>
I am hoping like heck that I haven't missed a bracket somewhere - embarrassing!
Other stuff: Windows 10 Pro (fully updated); 64 bit IE11; just javascript; Compatibility View OFF; Registry Keys/Values pointing where they should (cloned from working version).
While browser downloads fn_myGetSelectedText.js file from the internet, it does not stop parsing other code in your HTML. There's concurrent downloading of assets going on while browser parses the DOM.
when browser reaches this line var zSelection = myGetSelectedText(); it does not see myGetSelectedText defined on the window object at that moment thus throws out error.
What you want to do is wrap your script/code in your HTML into DOMContentLoaded event and call it once page load completes.
<script>
document.addEventListener("DOMContentLoaded", function(event) {
console.log("DOM fully loaded and parsed");
});
</script>
reference: https://developer.mozilla.org/en-US/docs/Web/Events/DOMContentLoaded
My guess would be that in your called function, pDefault is undefined, because you aren't passing a variable when you do the call.
So, this line: var zSelection = myGetSelectedText();
Should become: var zSelection = myGetSelectedText(zDefault);
HTH,
Jim

External Javascript File Fetch?

I am currently using this code:
var wordRandomizer = {
run: function (targetElem) {
var markup = this.createMarkup();
targetElem.appendChild(markup);
},
createMarkup: function () {
var that = this;
var frag = document.createDocumentFragment();
this.elem = document.createElement('span');
var button = document.createElement('button');
button.innerText = 'Change Item';
button.addEventListener('click', function () {
that.changeItem();
});
frag.appendChild(this.elem);
frag.appendChild(button);
return frag;
},
changeItem: function () {
var rand = this.getRandInt(1, this.items.length) - 1;
console.log(rand);
this.elem.innerText = this.items[rand];
},
getRandInt: function (min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
},
items: ['itemA', 'itemB', 'itemC', 'itemD']
};
wordRandomizer.run(document.body);
I code is a button which when pressed grabs one of the items in the list. However, I don't want the items to show on the same page as the generator as people simply look at the source code. How can I make it so once the button is pressed it grabs the random item from another location where people cannot view them all using the source code.
If it helps, you can see the code in action here - http://jsbin.com/ESOdELU/1/edit
I will give you a solution using PHP since it is a free scripting language and is the most likely to be supported by a host or default web server...
For starters, here is the code to include jquery and the basic AJAX script
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/JavaScript">
$(document).ready(function(){
$("#generate").click(function(){
$("#madlibs p").load("script.php");
});
});
</script>
Here is the code for script.php
<?php
header("Cache-Control: no-cache");
// For testing you can use an inline array like the lines below
// Just remove the comment slashes "//" from the beginning of the line
// and comment out the external declarations
//$actors = array('Denzel Washington','Michael J. Fox','Jim Carey','Boris Kodjoe');
//$roles = array('Mental Patient','Homeless Musician','Drag Queen Detective','Tormented Mathematician');
// In production, you would put these in a text file or a database.
// For $actors, put an entry on each line of a text file and save it as 'leads.txt'
// Do the same with a separate file for $roles (roles.txt).
$actors = file("leads.txt");
$roles = file("roles.txt");
// This selects a random element of each array on the fly
echo $prefixes[rand(0,count($actors)-1)] . " stars as a "
. $suffixes[rand(0,count($roles)-1)] . " in the next blockbuster film.";
// Example output:
// Michael J. Fox stars as a Tormented Mathematician in the next blockbuster film.
?>
Put this in the body of your page and be sure to style everything up for display.
<body>
<div id="madlibs"><p> </p></div>
<button id="generate">Surprise Me!</button>
</body>
A couple of notes:
- You can include your basic layout HTML in the script.php file and then would only need the ID of the DIV in which you will be displaying the result $("#madlibs")
You can use any server side language to achieve the same result, just swap out the external file call to the appropriate name and extension (.asp, .cfm, etc.)
Here is a link to the original tutorial that helped me with a similar project:
http://www.sitepoint.com/ajax-jquery/
I hope this helps. Sorry, but I couldn't come up with a purely Java of JavaScript solution on lunch.

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