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Passing a value from a textbox to a child pop-up window
Hi folks,
I have a page written in php ,
This the textbox control - is placed between form tags.
This is the javascript that calls the function to open a pop-up child window
This is the code in the child window - its the only code there
I have a page written in php ,
This the textbox control - is placed between form tags.
<table align="center">
<tr><td><textarea id="myhtml" name="supoffers" cols="80" rows="20"></textarea></td></tr>
</table>
This is the javascript that calls the function to open a pop-up child window
<script type="text/javascript" language="javascript">
var passVariable;
function mkPreview()
{
var passVariable= document.getElementById("myhtml").value;
window.open('preview.html', 'Preview', 'width=600, height=600,left=70, top=70 scrollbars=yes resizable=yes menubar=no');
}
</script>
This is the code in the child window - its the only code there
<script>
document.write('opener.passVariable');
</script>
Do more with
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
Any chance we can get a single script with a complete example that we can copy and install on our servers?
http://sscce.org/
http://sscce.org/
You may need to use 'innerHTML' instead of 'value'.
var passVariable= document.getElementById("myhtml").innerHTML;
Here you go. The textbox id "myhtml" contains html coding that I wish t render in the child pop-up page so they can see the results of what they entered..
saveoff.php is the parent page - coding listed below.
preview.html is the child page (listed below saveoffer.php coding)
saveoffer.php
Preview.html
saveoff.php is the parent page - coding listed below.
preview.html is the child page (listed below saveoffer.php coding)
saveoffer.php
<?php
require_once ("Includes/dbconfig.php");
include("Includes/session.php");
// Create database connection
$databaseConnection = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
if ($databaseConnection->connect_error)
{
die("Database selection failed: " . $databaseConnection->connect_error);
}
$baderr= "";
// check button action section
// user has click preview button
if (isset($_POST['preview']))
{
// header ("Location:saveoffer.php");
}
// user has click clear button
if (isset($_POST['clear']))
{
header ("Location:saveoffer.php");
}
// user has click on cancel button
if (isset($_POST['cancel']))
{
header ("Location:menu.php");
}
// user has click on main menu button
if (isset($_POST['main']))
{
header ("Location:menu.php");
}
// user has click on the save button
if (isset($_POST['submit']))
{
// intialize error message
$baderr= "";
// section to pull values from form
// country
$country = $_POST["country"];
//get stdmarketing value from the lookuptable
$query = "select StdMarketLabel FROM countries where Country='$country'";
$result = $databaseConnection->query($query);
while($row = $result->fetch_assoc())
{
$countrylbl = $row["StdMarketLabel"];
}
//travel
$travel = $_POST["travel"];
$query = "select StdMarketLabel FROM traveltypes where travel='$travel'";
$result = $databaseConnection->query($query);
while($row = $result->fetch_assoc())
{
$travellbl = $row["StdMarketLabel"];
}
// pulling html code pasted into textarea
$rawoffer = $_POST['supoffers'];
$goodoffer = htmlentities($rawoffer,ENT_QUOTES);
$supplerid = $_SESSION["SupplierId"];
$sqlsupplierid = $_SESSION["MsId"];
$suppliername = $_SESSION["SupplierName"];
//check to make sure they have chosen atleast one tag
// start of new coding section
if (($country == 'None Selected' and $travel == 'None Selected') or ($goodoffer == ''))
{
$baderr = "ERRORS:<BR>YOU MUST SELECT AT ATLEAST ONE TAG FOR SEARCHING.<BR>YOU MUST ENTER HTML CODING.";
}else{
// end of new coding section
$baderr = "";
$databaseConnection = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
if ($databaseConnection->connect_error)
{
die("Database selection failed: " . $databaseConnection->connect_error);
}else{
// if they have chosen an option then insert record
$sql = "insert into supplierlibrary(RecId,Name,SupplierPk,CountryStdMarket,
Country,TravelStdMarket,Travel,CampMsgBody)
values($supplerid,'$suppliername', $sqlsupplierid,'$countrylbl','$country','$travellbl','$travel','$goodoffer')";
$res= $databaseConnection->query($sql);
if (!$res)
{
$baderr = "ERROR<BR>FAILED TO INSERT RECORD<br>ERROR CODE:".$sql ."<BR><BR>" .$databaseConnection->error;
echo "<h7 style='color:#e80c4d;'>$baderr</h7>";
// echo "ERROR FAILED TO INSERT RECORD";
// echo "<BR><BR>";
// echo "ERROR<BR>" .$sql ."<BR><BR>" .$databaseConnection->error;
// allowed back into coding
}else{
$baderr = "RECORD WAS SAVED SUCCESSFULLY";
echo "<h7 style='color:'red';alignment-adjust: 'middle'>$baderr</h7>";
// moved here on 07-03
header ("Location:saveoffer.php");
}
mysqli_close($databaseConnection);
$baderr = "";
}
}
} else {
// $baderr = "Username/password combination is incorrect. Please try again";
}
?>
<script type="text/javascript" language="javascript">
var passVariable;
function mkPreview() {
var passVariable = document.getElementById("myhtml").value;
// document.write(passVariable); ///this writes on parent page - saveoffer.php...but need it to do it on child page - preview page
window.open('preview.html', 'Preview', 'width=600, height=600,left=70, top=70 scrollbars=yes resizable=yes menubar=no');
}
</script>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Supplier Save Offer to Library</title>
<link href="Styles/StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body class="bodybg">
<form action="saveoffer.php" method="post">
<br><br>
<table align="center">
<tr><td>Select any of the following tags to be for searching later.<br>You MUST choose atleast one.</br:>:</td></tr>
<tr><td colspan="2"> <?php
if (isset($_POST['submit']))
{
echo "<h7 style='color:#e80c4d;'>$baderr</h7>";
} ?>
</td></tr>
<tr><td align="right">Country:</td>
<td align="left">
<select name="country">
<option value="None Selected" selected>Choose One</option>
<?php
$query = "select * FROM countries order by Country";
$result = $databaseConnection->query($query);
while($row = $result->fetch_assoc())
{
?><option value="<?php echo $row["Country"];?>"><?php echo $row["Country"];?></option>
<?php } ?>
</select>
</td>
<td align="right">Travel Type:</td>
<td align="left">
<select name="travel">
<option value="None Selected" selected>Choose One</option>
<?php
$query = "SELECT * FROM traveltypes order by Travel";
$result = $databaseConnection->query($query);
while($row = $result->fetch_assoc())
{
?>
<option value="<?php echo $row["Travel"];?>"><?php echo $row["Travel"];?></option>
<?php } ?>
</select>
</td></tr>
</table>
<br><br>
<table align="center">
<tr><td>Paste HTML Code in textbox below</td></tr></table>
<table align="center">
<tr><td align="center">
<input type="submit" name="submit" value="Save" src="images/Save.jpg"/></td>
<td align="center"><input type="submit" name="cancel" value="Cancel" src="images/Cancel.jpg"/></td>
<td align="center"><input type="submit" name="clear" value="Clear Form" src="images/Clear.jpg"/></td>
<td align="center"><input type="button" value="Preview Offer" onclick="javascript:mkPreview();" src="images/PreviewOffer.jpg"/></td>
<td align="center"> <input type="submit" name="main" value="Main Menu" src="images/MainMenu.jpg"/></td>
</td>
</tr></table>
<br>
<table align="center">
<tr><td><textarea id="myhtml" name="supoffers" cols="80" rows="20"></textarea></td></tr>
</table>
</form>
</body>
</html>
Preview.html
<script>
document.write(opener.passVariable);
</script>
You could try appending the desired value to the html page. So update the code as follows:
window.open('preview.html?data='+encodeURIComponent
Then on preview.html, try:
window.open('preview.html?data='+encodeURIComponent
Then on preview.html, try:
<script type="text/javascript">
function gup( name,context )
{
if(!context)
context=window.location.href;
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "(^|[\\?]|&(amp;)?)"+name+"=([^&#]*)";
var regex = new RegExp( regexS,"" );
var results = regex.exec( context );
if( results == null )
return "";
else
return decodeURIComponent(results[3]);
}
var data = gup('data', location.href);
alert( data );
</script>
I see what you are saying about innerHTML but I displayed the passVariable on the parent page - saveoffers - and it had what I had pasted into the textbox so it is getting the value. But if it is in keeping with good coding practice, I will change it.
>>I see what you are saying about innerHTML
You are working with a textarea, so what you had initially is fine (meaning using the "value" instead of "innerHTML". You would need the "innerHTML" if the element in question was not a form element (like a <div> or <p>).
You are working with a textarea, so what you had initially is fine (meaning using the "value" instead of "innerHTML". You would need the "innerHTML" if the element in question was not a form element (like a <div> or <p>).
I understand. I don't think sending the value of the textfield as part of the url string would be a good idea simply because it will contain html code and mostly because it could be very large. The whole purpose of the child page is to render the coding as if it was a web page. Any more thoughts anyone?
>>simply because it will contain html code
I don't know what you mean by that, but the suggestion given encodes the data using encodeURIComponent() first, so there will be no collision between data and special url characters - ex "=".
>>mostly because it could be very large.
That is a valid point. I thought you were editing html fragments (like a "small" div). Knowing that you are dealing with large content makes a difference.
I suggest that you don't "pass" anything:
Then in preview.html, you need to "reach into" the parent window and "retrieve" the desired value:
I don't know what you mean by that, but the suggestion given encodes the data using encodeURIComponent() first, so there will be no collision between data and special url characters - ex "=".
>>mostly because it could be very large.
That is a valid point. I thought you were editing html fragments (like a "small" div). Knowing that you are dealing with large content makes a difference.
I suggest that you don't "pass" anything:
<script type="text/javascript" language="javascript">
function mkPreview()
{
window.open('preview.html', 'Preview', 'width=600, height=600,left=70, top=70 scrollbars=yes resizable=yes menubar=no');
}
</script>
Then in preview.html, you need to "reach into" the parent window and "retrieve" the desired value:
<script type="text/javascript">
/*
//forms[0] refers to the first <form> element on the page. Thus, if you have TWO forms:
// <form ><!-- this form is to do site search --></form>
// <form ><!-- this form is your application's form --></form>
// given the order in which the <forms> are defined above, since the application form
// is defined second, then you would need to use forms[1] (forms is a zero based collection of
// references to <form> elements.)
// If there is only one <form> on the page, then use forms[0].
*/
document.write( window.opener.document.forms[0].supoffers.value );
</script>
I understand, sometimes its hard to verbalize in written form what one is trying to communicate. I never knew that about forms. Interesting.
Question, in referencing the forms[0], can the name of the actual page be a substitute for forms[0] as in the example below? I am going to give the code a try. More later and thank you.
Question, in referencing the forms[0], can the name of the actual page be a substitute for forms[0] as in the example below? I am going to give the code a try. More later and thank you.
document.write( window.opener.document.savoffer.php.supoffers.value );
>> can the name of the actual page be a substitute for forms[0]
No. The name of the file has no bearing in the DOM tree. If you don't know anything about DOM, do yourself a favor and read up on it. There should be plenty of articles out there on the subject. IMHO, understanding the DOM is essential to front end web development.
Given:
<form name="myForm" id="f1" method="post" action="#">
<table align="center">
<tr><td><textarea id="myhtml" name="supoffers" cols="80" rows="20"></textarea></td>
</table>
</form>
from the popup you could retrieve the value of supoffers by using the form's:
- id:
window.opener.document.for
window.opener.document.get
- name:
window.opener.document.myF
window.opener.document.for
window.opener.document.get
- index position of the form in the document as previously mentioned:
window.opener.document.for
If you have multiple fields, you can first store a reference to the form onto a variable and use that as a "shortcut" to dereference the fields - ex:
No. The name of the file has no bearing in the DOM tree. If you don't know anything about DOM, do yourself a favor and read up on it. There should be plenty of articles out there on the subject. IMHO, understanding the DOM is essential to front end web development.
Given:
<form name="myForm" id="f1" method="post" action="#">
<table align="center">
<tr><td><textarea id="myhtml" name="supoffers" cols="80" rows="20"></textarea></td>
</table>
</form>
from the popup you could retrieve the value of supoffers by using the form's:
- id:
window.opener.document.for
window.opener.document.get
- name:
window.opener.document.myF
window.opener.document.for
window.opener.document.get
- index position of the form in the document as previously mentioned:
window.opener.document.for
If you have multiple fields, you can first store a reference to the form onto a variable and use that as a "shortcut" to dereference the fields - ex:
var the_form = window.opener.forms["f1"];
// assuming you also have <input name="firstName"/><input name="lastName"/> in the <form>
document.write( the_form.firstName.value);
document.write( the_form.lastName.value);
document.write( the_form.supoffers.value);
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