I am using UIWebView in iPhone and loaded one HTML page from resources.
Following is my HTML page code:
<html>
<head>
<title></title>
<SCRIPT language="JavaScript">
function callme(id)
{
var input = 'input'+id;
document.getElementById(input).value = document.getElementById('code').value;
}
</SCRIPT>
</head>
<body>
<input type=hidden id='code' name='code'>
<a href="#" id="click1" name="click1" onclick='callme(1);'>Click1</a>
<input type="text" id="input1" name="input1">
</br>
<a href="#" id="click2" name="click2" onclick='callme(2);'>Click2</a>
<input type=text id="input2" name="input2">
</br>
<a href="#" id="click3" name="click3" onclick='callme(3);'>Click3</a>
<input type=text id=input3 name=input3>
</body>
</html>
I have inject some Javascript on page using following code:
[webView stringByEvaluatingJavaScriptFromString:#"var field1 = document.getElementById('code'); field1.value='Code010203';"];
What I want is when user click on link first injected script should run and then onclick event's function(callme(1) or 2 or 3) for link(Click1,Click2 or Click3) should execute.
function callme(id)
{
injectedCode();
var input = 'input'+id;
document.getElementById(input).value = document.getElementById('code').value;
}
where injected code is:
[webView stringByEvaluatingJavaScriptFromString:#"var field1; function injectedCode() {field1 = document.getElementById('code'); field1.value='Code010203';}"];
I'm not 100% sure I understand your question.
If you want the click event to run the injected code, would this approach work for you :
(this is the injected code below)
document.querySelector("#click1").onclick = function() {
// do your new stuff here
clickMe(1);
};
You could make this generic with a bit of effort e.g.
document.querySelector("a[id^=click]").onclick = function() {
// do your new stuff here
var clickMeArg = this.id.substring("click".length);
clickMe(parseInt(clickMeArg, 10));
};
Related
I'm writing a web app under google sheets and can't get an input field to work. What am I doing wrong?
everything works but uname is always empty (not undefined).
edit: I'm adding the full code after simplifying it as much as I could.
In the log I get "name" regardless of the input I type in.
In the file code.gs:
function doGet () {
var participant = {};
var templ = HtmlService.createTemplateFromFile('out');
return templ.evaluate();;
}
function formSubmit(name) {
Logger.log("name " + name);
}
In out.html
<!DOCTYPE html>
<html>
<head>
<base target ="_top">
</head>
<body dir="rtl"; background-color: #92a8d1;>
<label> Name 1 </label> <input type="text" id="firstname"><br>
<label> Name 2 </label> <input type="text" id="lastname"> <br><br>
<button type="button" id="send">Send</button>
<script>
document.getElementById("send").addEventListener("click", getData());
function getData(){
var uname = document.getElementById("firstname").value;
google.script.run.formSubmit(uname);
}
</script>
</body>
</html>
You want to retrieve the value of <input type="text" id="firstname"> when the button is clicked.
In your current situation, when you see the log with the script editor, only name is retrieved. This is your current issue.
You want to know the reason of the issue.
If my understanding is correct, how about this answer? Please think of this as just one of several possible answers.
Modification points:
In your script, document.getElementById("send").addEventListener("click", getData()); is used. In this case, when the HTML is loaded, getData() is run by () of getData(). By this, uname becomes "" and "" is sent to formSubmit(uname), then, when you see the log, you see name. And also, in this case, even when the button is clicked, google.script.run.formSubmit(uname); cannot be run. I think that this is the reason of the issue of your script in your question.
In order to avoid this, please modify your script as follows.
Modified script:
From:
document.getElementById("send").addEventListener("click", getData());
To:
document.getElementById("send").addEventListener("click", getData);
By the above modification for your script, when sample is inputted to "Name 1" and click "Send" button, you can see name sample at the log with the script editor.
Reference:
addEventListener()
If I misunderstood your question and this was not the result you want, I apologize.
Here's an example form that you can probably use to accomplish your needs. This form is used as a simple receipt collection system. You can actually take and upload images from a mobile device with it. I also has text and button input types and upload a form node.
Code.gs
var receiptImageFolderId='';
var SSID='';
function onOpen() {
SpreadsheetApp.getUi().createMenu('Receipt Collection')
.addItem('Run as Dialog', 'showAsDialog')
.addItem('Run as Sidebar', 'showAsSidebar')
.addToUi();
var sh=SpreadsheetApp.getActive().getSheetByName("Sheet1");
sh.getRange(sh.getLastRow()+1,1).activate();
}
function uploadTheForm(theForm) {
var rObj={};
rObj['vendor']=theForm.vendor;
rObj['amount']=theForm.amount;
rObj['date']=theForm.date;
rObj['notes']=theForm.notes
var fileBlob=theForm.receipt;
var fldr = DriveApp.getFolderById(receiptImageFolderId);
rObj['file']=fldr.createFile(fileBlob);
rObj['filetype']=fileBlob.getContentType();
Logger.log(JSON.stringify(rObj));
var cObj=formatFileName(rObj);
Logger.log(JSON.stringify(cObj));
var ss=SpreadsheetApp.openById(SSID);
ss.getSheetByName('Sheet1').appendRow([cObj.date,cObj.vendor,cObj.amount,cObj.notes,cObj.file.getUrl()]);
var html=Utilities.formatString('<br />FileName: %s',cObj.file.getName());
return html;
}
function formatFileName(rObj) {
if(rObj) {
Logger.log(JSON.stringify(rObj));
var mA=rObj.date.split('-');
var name=Utilities.formatString('%s_%s_%s.%s',Utilities.formatDate(new Date(mA[0],mA[1]-1,mA[2]),Session.getScriptTimeZone(),"yyyyMMdd"),rObj.vendor,rObj.amount,rObj.filetype.split('/')[1]);
rObj.file.setName(name);
}else{
throw('Invalid or No File in formatFileName() upload.gs');
}
return rObj;
}
function doGet() {
var output=HtmlService.createHtmlOutputFromFile('receipts').setTitle('thehtml');
return output.setXFrameOptionsMode(HtmlService.XFrameOptionsMode.ALLOWALL).addMetaTag('viewport', 'width=360, initial-scale=1');
}
function showAsDialog() {
var ui=HtmlService.createHtmlOutputFromFile('thehtml');
SpreadsheetApp.getUi().showModelessDialog(ui, 'Receipts')
}
function showAsSidebar() {
var ui=HtmlService.createHtmlOutputFromFile('thehtml');
SpreadsheetApp.getUi().showSidebar(ui);
}
function initForm() {
var datestring=Utilities.formatDate(new Date(),Session.getScriptTimeZone(), "yyyy-MM-dd")
return {date:datestring};
}
The Html:
<!DOCTYPE html>
<html>
<head>
<base target="_top">
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script>
$(function(){
google.script.run
.withSuccessHandler(function(rObj){
$('#dt').val(rObj.date);
})
.initForm();
});
function fileUploadJs(frmData) {
var amt=$('#amt').val();
var vndr=$('#vndr').val();
var img=$('#img').val();
if(!amt){
window.alert('No amount provided');
$('#amt').focus();
return;
}
if(!vndr) {
window.alert('No vendor provided');
$('#vndr').focus();
return;
}
if(!img) {
window.alert('No image chosen');
$('#img').focus();
}
document.getElementById('status').style.display ='inline';
google.script.run
.withSuccessHandler(function(hl){
document.getElementById('status').innerHTML=hl;
})
.uploadTheForm(frmData)
}
console.log('My Code');
</script>
<style>
input,textarea{margin:5px 5px 5px 0;}
</style>
</head>
<body>
<h3 id="main-heading">Receipt Information</h3>
<div id="formDiv">
<form id="myForm">
<br /><input type="date" name="date" id="dt"/>
<br /><input type="number" name="amount" placeholder="Amount" id="amt" />
<br /><input type="text" name="vendor" placeholder="Vendor" id="vndr"/>
<br /><textarea name="notes" cols="40" rows="2" placeholder="NOTES"></textarea>
<br/>Receipt Image
<br /><input type="file" name="receipt" id="img" />
<br /><input type="button" value="Submit" onclick="fileUploadJs(this.parentNode)" />
</form>
</div>
<div id="status" style="display: none">
<!-- div will be filled with innerHTML after form submission. -->
Uploading. Please wait...
</div>
</body>
</html>
Here's what the dialog looks like:
I'm attempting to create a page with a simple input form, use that to create the URL required and display the resulting page in a div all in one go. When I sent the user directly to the created URL from clicking submit that worked perfectly, but I can't seem to get it to do anything with the following code:
<head>
<script src="jquery-1.12.0.min.js"></script>
</head>
<form id="theForm">
<input id='subj'/>
<input type='submit'/>
</form>
<script>
var theForm = document.getElementById('theForm');
var theInput = document.getElementById('subj');
var show;
theForm.onsubmit = function(e){
show = "www.someurl.com/" + encodeURIComponent(theInput.value);
return show;
$('#display').load(show);
}
</script>
<div id="display"></div>
I've changed three things and got the code to work:
1. Changed the div to an iFrame
2. Added an "action" attribute to the form and set it to "#" so that the program doesn't exit the webpage upon clicking the form.
3. Removed the "encodeURIComponent" command from the code, because it didn't work with it..
This is my example:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<form id="theForm" action="#">
<input id='subj'/>
<input type='submit'/>
</form>
<iframe id="display"></iframe>
<script>
var theForm = document.getElementById('theForm');
var theInput = document.getElementById('subj');
var show;
theForm.onsubmit = function(e){
var show = "http://someUrl.com/" + (theInput.value);
console.log(show);
document.getElementById("display").src= show;
}
</script>
</body>
</html>
Disclaimer: I am not looking for someone to code this for me just some pointers to help me fix this problem :)
I have the following web page that allows me to add fields dynamically to a form. The current page works. What I want to do is figure out how to make the javascript at the bottom of the page more generic. example I want to pass the templet id and the target id to the function without hard coding the templet id and the target id into the script. Here is the code that I have and works just fine.
I want to make the morefields function so that I can reuse. I want to pass to the function the template and the target. example function moreFields ( templete, target). this way I can use the same function without editing over and over in different web pages. if you look in to the moreFields function you will see that it is hard coded for "readroot" and "writeroot" I want to change the function so it will take parameters and do the same thing it is doing now.
<HTML>
<HEAD>
<META NAME="generator" CONTENT=
"HTML Tidy for Linux/x86 (vers 25 March 2009), see www.w3.org">
<TITLE></TITLE>
<STYLE TYPE="text/css">
div.c1 {display: none}
</STYLE>
</HEAD>
<BODY >
<DIV ID="readroot" CLASS="c1">
Variable Name <INPUT NAME="VarName"><BR>
</DIV>
<FORM METHOD="post" ACTION="/cgi-bin/show_params.cgi">
Function Name: <INPUT NAME="CFunction"> <BR>
Function Alias: <INPUT NAME="AFunction"><BR>
<BR>
<SPAN ID="writeroot"></SPAN>
Function return: <INPUT NAME="AFunction"><BR>
<INPUT TYPE="button" ID="AddMoreFields" VALUE="Give me more fields!" ONCLICK= "moreFields()"> <INPUT TYPE="submit" VALUE="Send form">
</FORM>
<SCRIPT >
var counter = 0;
function moreFields() {
counter++;
var newFields = document.getElementById("readroot").cloneNode(true);
newFields.id = '';
newFields.style.display = 'block';
var newField = newFields.childNodes;
for (var i=0;i<newField.length;i++) {
var theName = newField[i].name
if (theName)
newField[i].name = theName + counter;
}
var insertHere = document.getElementById("writeroot");
insertHere.parentNode.insertBefore(newFields,insertHere);
}
window.onload = moreFields()
</SCRIPT>
</BODY>
</HTML>
Say I have this text box:
<input type="text" id="myText" placeholder="Enter Name Here">
Upon pressing a button, I would like to send the value entered into this div:
<div id="text2"></div>
I'm not entirely sure how to do this. Do I create a function and call it to the div? How would I do that?
Could someone clear this up for me? Thanks.
Add an onclick to your button:
<input type="button" id="somebutton" onclick="addText()">
Then write the javascript:
function addText()
{
document.getElementById('text2').innerHTML = document.getElementById('myText').value;
}
Solution using onclick event:
<input type="text" id="myText" placeholder="Enter Name Here">
<div id="text2"></div>
<button id="copyName" onclick="document.querySelector('#text2').innerHTML = document.querySelector('#myText').value" value="Copy Name"></button>
JSFiddle: http://jsfiddle.net/3kjqfh6x/1/
You can manipulate the content inside the div from javascript code. Your button should trigger a function (using the onclick event), which would access the specific div within the DOM (using the getElementById function) and change its contents.
Basically, you'd want to do the following:
<!DOCTYPE html>
<html>
<script>
function changeContent() {
document.getElementById("myDiv").innerHTML = "Hi there!";
}
</script>
<body>
<div id="myDiv"></div>
<button type="button" onclick="changeContent()">click me</button>
</body>
</html>
Mark D,
You need to include javascript to handle the button click, and in the function that the button calls, you should send the value into the div. You can call $("#myText").val() to get the text of the text box, and $("#txtDiv").text(txtToAppend) to append it to the div. Please look at the following code snippet for an example.
function submitTxt() {
$("#txtDiv").text($("#myText").val())
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" id="myText" placeholder="Enter Name Here">
<button onclick = "submitTxt()"> Submit </button>
<div id="txtDiv"> </div>
HTML could be:
<input type='text' id='myText' placeholder='Enter Name Here' />
<input type='button' id='btn' value='click here' />
<div id='text2'></div>
JavaScript should be external:
//<![CDATA[
var pre = onload; // previous onload? - window can only have one onload property using this style of Event delegation
onload = function(){
if(pre)pre();
var doc = document, bod = doc.body;
function E(e){
return doc.getElementById(e);
}
var text2 = E('text2'); // example of Element stored in variable
E('btn').onclick = function(){
text2.innerHTML = E('myText').value;
}
}
//]]>
I would recommend using a library like jQuery to do this. It would simplify the event handling and dom manipulation. None the less, I will include vanilla JS and jQuery examples.
Assuming the HTML in the body looks like this:
<form>
<input id="myText" type="text" placeholder="Enter Name Here">
<br>
<input type="submit" id="myButton">
</form>
<div id="text2"></div>
The Vanilla JS example:
//Get reference to button
var myButton = document.getElementById('myButton');
//listen for click event and handle click with callback
myButton.addEventListener('click', function(e){
e.preventDefault(); //stop page request
//grab div and input reference
var myText = document.getElementById("myText");
var myDiv = document.getElementById("text2");
//set div with input text
myDiv.innerHTML = myText.value;
});
When possible avoid using inline onclick property, this can make your code more manageable in the long run.
This is the jQuery Version:
//Handles button click
$('#myButton').click(function(e){
e.preventDefault(); //stop page request
var myText = $('#myText').val(); //gets input value
$('#text2').html(myText); //sets div to input value
});
The jQuery example assumes that you have/are adding the library in a script tag.
I am beginner to html. I have two text boxes say t1 and t2 If t1 is filled with some data then then other text box t2 should be disable. Please let me know hot to do it. Thanks in advance
Based on your simple scenario description, here's an implementation that works cross-browser and without any third-party javascript library:
<html>
<head>
<script type="text/javascript">
window.onload = function(){
var t1 = document.getElementById("t1");
var t2 = document.getElementById("t2");
t1.onchange = function(){
t2.disabled = t1.value.length > 0;
}
}
</script>
</head>
<body>
<form>
t1:<input type="text" id="t1" name="t1" /><br/>
t2:<input type="text" id="t2" name="t2" />
</form>
</body>
</html>
<head>
<script type="text/javascript">
function verify(){
var t1 = document.getElementById ('first');
var t2 = document.getElementById ('second');
if (t1.value != '') {
t2.setAttribute('disabled','disabled');
return true;
}
if (t2.value != '') {
t1.setAttribute('disabled','disabled');
return true;
}
}
</script>
</head>
<body>
...
<input type="text" id="first" onblur="verify()">
<input type="text" id="second" onblur="verify()">
...
</body>
You can't achieve this with plain HTML.
Following the guidelines of progressive enhancement, you should first implement a server side check in whatever form handler you are using to process the submitted data.
Then you can consider adding JavaScript for a client side check. Something along the lines of:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Disabling form controls</title>
</head>
<body>
<form id="myForm" action="http://example.com/">
<div>
<input name="t1">
<input name="t2">
</div>
</form>
<script type="text/javascript">
(function () {
var t1 = document.forms.myForm.elements.t1;
var t2 = document.forms.myForm.elements.t2;
var handler = function handler() {
t2.disabled = (t1.value !== "");
};
t1.onchange = handler;
}());
</script>
</body>
</html>
(Although I would use a library such as YUI or jQuery to add event handlers in a fashion that is better protected from overwriting in a crossbrowser compatible way).
You might want some tutorials on JavaScript and the DOM so that this makes sense.