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JavaScript - File Download Using Javascript
Can anyone give me the code for the following:
Suppose there is a hyperlink for file downloading in a html document. If I click on the link a new pop up window will come up which will be in the form of a typical file download popup window and will ask me to either "open" or "save" or "cancel" or "more info" (just as it happens in a typical file download process where a file download popup is being thrown). Also my file(the file can be in any format---.doc,.pdf,.exe or whatever)resides in my local hard drive and when I click on the hyper link the file download popup will comeup and will give me the 4 options as mentioned above.It wont just display the content of the file to be opened in new popup window.It will explicitly give the 4 options for any type of file to be downloaded thru the hyperlink. This coding is to be done only and only with HTML and JAVASCRIPT . Can anyone help me by providing code for the above task. Similar Tutorialshi, I have a website which is available on internet and uses lot of javascript code. Someone recently reported a bug and I fixed it in a javascript file. Now I want to move this updated js file on my server. but I am confused, how will this fix now be downloaded on every user's browser when they access website the next time? Is the download to client machine dependent on browser settings? could it be possible that some customer machine has latest file and some do not. How do I force file to download on client machine independent of client browser settings? thank u I want to have another go at Javascript. I have several books on the subject but I find that my eyesight is a major problem. Therefore I want to try an on-line solution, preferably free. I have Googled, but there are so many that I am almost dizzy with the choices. Perhaps someone could recommend one. Not too fussy visually. My knowledge is VERY basic. Frank Hi Guys, I am trying to create a way for my users to download some code dynamically from my web page via a file download. Below is the code that i have written so far. It seems to be dying on the iframe but i'm not sure why. Here is my jquery trigger which is inside my onreadystate function. Code: $('#export_txt').click(function(e){
alert(LPAjax.ajaxurl + "/download.php");
$.generateFile({
action : "download_txt",
filename : "exportme.txt",
content : $("#ticket_window").html(),
script : LPAjax.ajaxurl + "/download.php"
});
e.preventDefault();
});
and here is the code i am using to process the post. Code: (function($){
// Creating a jQuery plugin:
$.generateFile = function(options){
options = options || {};
if(!options.script || !options.filename || !options.content){
throw new Error("Please enter all the required config options!");
}
alert("Inside Function");
// Creating a 1 by 1 px invisible iframe:
var iframe = $('<iframe>',{
width:1,
height:1,
frameborder:0,
css:{
display:'none'
}
}).appendTo('body');
var formHTML = '<form action="" method="post">'+
'<input type="hidden" name="filename" />'+
'<input type="hidden" name="content" />'+
'</form>';
// Giving IE a chance to build the DOM in
// the iframe with a short timeout:
setTimeout(function(){
// The body element of the iframe document:
var body = (iframe.prop('contentDocument') !== undefined) ?
iframe.prop('contentDocument').body :
iframe.prop('document').body; // IE
alert(" We are almost there");
body = $(body);
// Adding the form to the body:
body.html(formHTML);
alert("added form to page");
var form = body.find('form');
form.attr('action',options.script);
form.find('input[name=filename]').val(options.filename);
form.find('input[name=content]').val(options.content);
alert("submitting form");
// Submitting the form to download.php. This will
// cause the file download dialog box to appear.
form.submit();
},50);
};
})(jQuery);
it seems to be dying on this line. Code: var body = (iframe.prop('contentDocument') !== undefined)
Any suggestions? Thanks in advance. All -- I have a JavaScript config file called gameSetting.js which contains a bunch of variables which configures a particular game. I also have a shared JavaScript library which uses the variables in gameSetting.js, which I include like so: <script type="text/javascript" src="gameSetting.js" ></script> <script type="text/javascript" src="gameLibrary.js" ></script> In gameSetting.js I have: $(document).ready(function() { // call some functions / classes in gameLibrary.js } in Firefox, Safari, and Chrome, this works fine. However, in IE, when it's parsing gameSetting.js, it complains that the functions that live in gameLibrary.js aren't defined. When it gets to parsing gameLibrary.js, the variables in gameSetting.js are reported as not being defined. I've tried dynamically bootstrapping the gameLibrary file using this function in document.ready for dynamic load... $.getScript("gameLibrary.js"); However, the same problem still happens in IE, where when it parses the files individually it's not taking into context the file/variables that came before, so it's not an out of load order problem. My options a 1) collapsing all the functions in gameLibrary.js and variables in gameSetting.js into one file. However, this is not practical because this is dealing with literally hundreds of games, and having a gameLibrary.js in ONE location for ONE update is what makes most logical sense. 2) figure out a way to get this to work where variables in file1 are accessible to file2 in IE (as it seems they are in other browsers). jQuery seems to be able to have multiple plugins that all refer to the based jQuery-1.3.2.js, so I know there is a way to get this to work. Help appreciated. Nero Hi there, On this website: http://www.lutanho.net/stroke/online.html it's allowed to "copy the games to your PC and play them offline". That's nice but how do I do that? I've tried to download/copy the game "WordGrid" to my PC but it didn't work. Help would be appreciated. Thanks in advance........... Hi, i want to bring image download link to download a single image using like <a href="./images/sam.png">Download</a> when i click the download link it need to download plz help how can i download can finished Thanking you Hey guys I've a download page with a button 'DOWNLOAD NOW'. When the button is clicked visitors will have to wait for the download to starts (doesn't redirect). What I want is that sometimes it takes very long for the DL to start after clicking the button, for instance 10 seconds. Hence I want to show a simple preloader WHEN the button is click, while waiting for the browser to stop loading and download to start, AND hide the preloader when browser stop loading and download started. I can get this code to take two separate sections of a file which are not beside each other and write them into another file. It always comes up as a single full line of the code instead of the sections I want. The code includes the student number first name last name and three results of assignments. I want the code to write the student number and three results of all the students into a file and then work out the average of the student results. Can you help? Code: try{
while (in.hasNextLine())
{
String line = in.nextLine();
out.println( line);
int i=0;
if(!Character.isDigit(line.charAt(i))) { i++; }
studentStringNumber = line.substring(0, i);
String stringResult = line.substring(i);
studentStringNumber = studentStringNumber.trim();
stringResults = stringResults.trim();
double stringResultsValue = Double.parseDouble(stringResults.trim());
stringResults = in.nextLine();
studentStringNumber = in.nextLine();
studentNumber = Integer.parseInt(studentStringNumber);
if(in.hasNextInt())
{
int value = in.nextInt();
}
results = Double.parseDouble(stringResults);
if(in.hasNextDouble())
{
double value = in.nextDouble();
}
Scanner lineScanner = new Scanner(line);
studentStringNumber = lineScanner.next();
while(!lineScanner.hasNextDouble())
{
studentStringNumber = studentStringNumber+ " " +lineScanner.next();
}
stringResultsValue = lineScanner.nextDouble();
}
}
Hi i am using javascript for the first time and i have a problem .I have 2 files html and javascript file in seperate but i donot know how to make them work .the code is down below .Thanks in advance for help. HTML <!DOCTYPE html> <html> <head> <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script> <meta name="description" content="Instagram API - usage" /> <meta charset=utf-8 /> <title></title> </head> <body> <input id="lat_input" type="number" value="60.221374"/> <input id="lng_input" type="number" value="24.805391"/> <button id="search_location">Search</button><br/> <button id="get_popular">Get popular</button> <div id="images"></div> </body> </html> Javascript file // API DOCUMENTATION: // Instagram Developer Documentation var clientId = 'e7538f47e197479d8d32a63ae3ae4cd2'; $('#search_location').click(function () { getMediaByLocation($('#lat_input').val(), $('#lng_input').val()); }); $('#get_popular').click(function () { getPopularImages(); }); function getMediaByLocation(lat, lng) { var o = { lat: lat, lng: lng, client_id: clientId }; $.getJSON('https://api.instagram.com/v1/media/search?callback=?', o, function (response) { processImages(response.data); }); } function getPopularImages() { var o = { client_id: clientId }; $.getJSON('https://api.instagram.com/v1/media/popular?callback=?', o, function (response) { processImages(response.data); }); } function processImages(array) { $('#images').empty(); $.each(array, function (index, element) { var fs = $('<fieldset>').appendTo('#images'); $('<img>').attr('src', element.images.low_resolution.url).appendTo(fs); if (element.caption) { $('<pre>').text(element.caption.text).appendTo(fs); } $.each(element.comments.data, function (index, comment) { $('<pre>').text('Comment from ' + comment.from.full_name + ': ' + comment.text).appendTo(fs); }); }); } Does anyone know how to accomplish this? I got the html file to show but none of the text in the file will show.
Hi, I have the following code snippet: test.html ====== <script language="javascript" type="text/javascript"> var testVariable = "test"; </script> <script language="javascript" type="text/javascript" src="test.js"> </script> test.js ===== var testVariable = window.top.testVariable; In firefox, I'm able to access testvariable defined within test.html in test.js. But in chrome, test.js couldnot get the window.top.testVariable field defined in test.html. Can any one please let me know how i can make it work in chrome?. Am i missing something here?. Dear All I have a .js file in which i have pasted Urdu text and HTML tags like function urdutext() { innerHTML.right_column='HTML tags & urdu text';} The .js file contains about eighty lines of urdu text and some HTML tags in betweeen. But when i run this file alone in my browser it displays half of the file and the rest of the lines remain undisplayed. and when i use this file in my web page and when i click a button to display the urdu text, it dispays nothing in my web page. I know the reason but i cant solve it my self. The reason is that the .js file does not get fully uploaded and hence the file remains open and the syntax become wrong. And that is the reason it does not display anything in the web page. So i want ut help. Any one can help and would take my best wishes. Regards Sajad Bhatt Ok, I am currently working on an announcements portlet for a dashboard that my team is creating. What is desired is to be able to have this portlet access a stored text file (file can be edited so content is subject to change) that will have all the information needed for these announcements. The JavaScript will then write it into a html file. I am a novice at html, and javascript; and i was hoping that if anyone had any advice, ideas, or a helpful link that could point me in the right direction I would much appreciate it. This is code use to save XML file using Javascipt but it can't not save full Processing Instruction, example we have PI is <?xml version="1.0" encoding="utf8"> when run the code then PI is saved with <?xml version="1.0"> and sometime it doesn't word. Please help me fix, thanks PHP Code: function SaveXML(xmlDoc,filename) { var outputXML = xmlDoc.xml; var mfObj = new ActiveXObject("Scripting.FileSystemObject"); var absPath = getPath(); var file = mfObj.CreateTextFile(absPath + filename, true); file.Write(outputXML); file.Close(); } function getPath() { var path = document.location; var str = new String(path); var end = str.lastIndexOf("/"); var absolutePath = str.substring(8, end) + "/"; absolutePath = absolutePath.replace(/%20/g, " "); return absolutePath; } Hello, I am looking for a way to tell from javascript if a file exists (on the server). I don't mind doing this with a .php script, if I have to, but the javascript still needs to know if the file exists. I thought the following javascript code might work: Code: var file_exists = <?php echo file_exists("OpenTokSessionId.txt"); ?>;
but it didn't. PHP parsed the php code, but it didn't assign the result value to the Javascript variable like its supposed to (or at least, it didn't seem to). When I looked at the page source after I uploaded it to the server, that line of code now looked like this: Code: var file_exists = ; Note that my server is setup to pass files with an .html or .htm extension to the php engine. That is why this kind of stuff can be done. But for some reason, php doesn't seem to be able to output bool values. I tried the following .php script, which I loaded directly in my browser, but it didn't output anything: PHP Code: <?php function fileExists() { return file_exists("OpenTokSessionId.txt")) } echo fileExists(); ?> So I changed it to the following, and it outputted "File does not exist.", which is the expected result: PHP Code: <?php function fileExists() { if (file_exists("OpenTokSessionId.txt")) echo "File exists."; else echo "File does not exist."; } fileExists(); ?> i m trying to extract data from an xml file and display data on Google maps but when i try to run my code In IE - Access denied error is display (while accessing the xml file) Mozilla - code is working fine but displays following error - Error: xmlDoc.getElementsByTagName("lat")[1] is undefined Source File: file:///I:/BE%20Project%20Data/coding/Myexample/exam2.html Line: 48 HTML file- <html> <head> <title>Google Maps JavaScript API v3 Example: Fusion Tables Layer</title> <link href="http://code.google.com/apis/maps/documentation/javascript/examples/default.css" rel="stylesheet" type="text/css" /> <style type="text/css"> html { height: 100% } body { height: 100%; margin: 0px; padding: 0px } #map_canvas { height: 500px;width: 800px } </style> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript"> function initialize() { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("GET","agridata.xml",false); xmlhttp.send(); xmlDoc=xmlhttp.responseXML; var latlng = new google.maps.LatLng(48.75028,-94.91667); var mapOpts = { zoom: 5, center: latlng, mapTypeId: google.maps.MapTypeId.ROADMAP, }; var map = new google.maps.Map(document.getElementById("map_canvas"),mapOpts); var l1=xmlDoc.getElementsByTagName("lat")[1].childNodes[0].nodeValue; var l2=xmlDoc.getElementsByTagName("lng")[1].childNodes[0].nodeValue; var pt = new google.maps.LatLng(parseFloat(l1), parseFloat(l2)); var marker = new google.maps.Marker({ position: pt, map: map, title: 'Just a simple marker'}); } </script> </head> <body onload="initialize();"> <h1>output</h1> <div id="map_canvas"></div> </body> </html> XML file - <?xml version="1.0"?> <markers> <marker> <lat>52.09667</lat> <lng>-173.50056</lng> <state>Alaska</state> <county>Aleutian</county> </marker> <marker> <lat>48.75028</lat> <lng>-94.91667</lng> <state>Minnesota</state> <county>Lake of woods</county> </marker> <marker> <lat>52.09667</lat> <lng>-173.50056</lng> <state>Washington</state> <county>Stevans</county> </marker> </markers> do let me know the reason behind the undefined error and ACCESS DENIED error ... i have tried modification in the security setting of the browser but error is not solved yet ... thks Im coding a chat system, but the main thing which I cannot get working which is stopping me from doing this is displaying the data from the database. I have made a test XML document for the time being so that I can get the JavaScript/AJAX working properly, then I will figure out why my PHP isnt generating the XML file properly. Here is my XML document: Code: <?xml version="1.0" ?> <root> <message id="0"> <sender>martynball</sender> <receiver>someoneelse</receiver> <time>154375342</time> <text>Testing an XML document and seeing if the JavaScript will display it properly. If so then there is a problem with the PHP.</text> </message> </root> And here is my JavaScript/AJAX, for some reason there is NOTHING being displayed in the div which has the correct ID. Code: <script type="text/javascript">
function getXmlHttpRequestObject()
{
if (window.XMLHttpRequest)
{
// code for IE7+, Firefox, Chrome, Opera, Safari
return new XMLHttpRequest();
}
if (window.ActiveXObject)
{
// code for IE6, IE5
return new ActiveXObject("Microsoft.XMLHTTP");
}
return null;
}
//Make variables for later use
var lastMess = 0;
var sendReq = getXmlHttpRequestObject();
var receiveReq = getXmlHttpRequestObject();
var mTimer;
function getMessage() {
if (receiveReq.readyState == 4 || receiveReq.readyState == 0) {
//var url = "scripts/get_data.php?uid=<?=$_SESSION['uid']?>&m=" + lastMess + "&chat=1";
var url = "testXMLdoc.xml";
receiveReq.open("GET", url, true);
receiveReq.onreadystatechange = manageMessage;
receiveReq.send(null);
lastMess++;
}
}
function manageMessage() {
if (receiveReq.readyState == 4) {
var xmldoc = receiveReq.responseText;
var chat_div = document.getElementById('chat');
var msg_nodes = xmldoc.getElementByTagName("message");
var n_msg = message_nodes.length;
for (i = 0; i < n_msg; i++) {
var sender_node = msg_node[i].getElementByTagName["sender"];
var receiver_node = msg_node[i].getElementByTagName["receiver"];
var time_node = msg_node[i].getElementByTagName["time"];
var text_node = msg_node[i].getElementByTagName["text"];
chat_div.innerHTML = "He <br />" + sender_node[0].firstChild.nodeValue + "<br />";
chat_div.innerHTML = reciever_node[0].firstChild.nodeValue + "<br />";
chat_div.innerHTML =time_node[0].firstChild.nodeValue + "<br />";
chat_div.innerHTML = text_node[0].firstChild.nodeValue + "<br />";
}
}
}
</script>
Also, I put a alert under the manageMessage() function before the IF statement and that gets displayed. I want to make an rpg with a username and password login without a database, I was thinking, maybe i could make it when the user presses "sign up" the webpage creates a new file in the same directory that stores all their information. I researched it and realised it wasn't cross browser compatible. Therefore I came up with an idea to store all the users' information in a array. What i want to do is that when the user presses "sign up" it adds that user to the array and the html file overwrites itself so the new user is saved into the array Any ideas? I'm trying to include an HTML/CSS Navigation Bar in a JavaScript file for easy editing (instead of going from page to page changing the same thing). This is the HTML & CSS I want to include in the JavaScript file: <a style="border-left: 1px solid white; padding: 5px" class=menu href="Index.html" title="Home"> Home</a><a class=menu href="menu1.html" title="Portfolio"> Portfolio</a><a class=menu href="menu2.html" title="About Us"> About Us</a><a class=menu href="menu3.html" title="Media"> Media</a><a class=menu href="menu4.html" title="Store"> Store</a><a class=menu href="menu5.html" title="Contact Us"> Contact Us</a> -If this isn't possible to do in JavaScript, then what language can I do it in? Thank you for reading. |
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