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POJoomla 2.5 upload file dynamically
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11572792
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11770984
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1
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2012-07-20T04:12:17.200
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2012-08-02T04:18:51.190
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2012-07-23T17:14:10.037
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597607
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616
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text
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<p>I'm converting a Joomla 1.5 component to J2.5 I upload files dynamically. An iframe is filled with a form to do this, the iframe has an inner iframe to set the target of the form. After recieving the JSON answer, I use a function on the <code>onload</code> of the inner iframe to erase the iframe and display the uploaded image (using elements of the parent page). Everything works great on J1.5, but on J2.5 I recieve a <code>joomla.json</code> file to download, and seems like the form is not using the target.</p> <p>The function to display the form on the outter iframe is:</p> <pre><code>function showUploadImage(evt) { if (!document.getElementById("uploadIFrame")) { return false; } var frame = document.getElementById("uploadIFrame"); var doc = frame.contentDocument; var page; page = "\ <html> \ <head> \ <link rel='stylesheet' href='<?php echo JRoute::_(JURI::base().'/components/com_tutorial/css/base.css',false); ?>' type='text/css' /> \ <link rel='stylesheet' href='<?php echo JRoute::_(JURI::base().'components/com_tutorial/css/upframe.css',false); ?>' type='text/css' /> \ </head> \ <body>"; page += ' \ <div id="waitimage"></div> \ <form id="fileUploadForm" method="post" enctype="multipart/form-data" action="<?php echo JRoute::_('index.php?option=com_tutorial&view=edittutorial&task=savetutimage&tmpl=json&format=json&tutId='.$this->tutId); ?>" target="uploadTarget"> \ <label class="title" for="images"><?php echo JText::_("UPLOAD IMAGE"); ?></label> \ <div class="separator25"></div> \ <div id="pageimages"> \ <div id="newimgfields"> \ <div class="controw"> \ <label class="title" for="image"><?php echo JText::_('SELECT_FILE'); ?></label><input size="35" id="image" type="file" name="image" /> \ </div> \ <div class="controw"> \ <input type="submit" onclick="document.getElementById(\'waitimage\').innerHTML=\'<div class = &quot;mooloader&quot;></div>\';" value="<?php echo JText::_('UPLOAD_IMAGE'); ?>" /> \ </div> \ </div> \ </div> \ </form> \ <iframe id="uploadTarget" name="uploadTarget" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> \ '; page += "</body></html>"; // now write out the new contents if (doc == undefined || doc == null) doc = frame.contentWindow.document; doc.open(); doc.write(page); doc.close(); doc.getElementById("uploadTarget").onload = uploadDone; } </code></pre> <p>And the function executed on the "onload" is:</p> <pre><code>function uploadDone() { var frame = document.getElementById("uploadIFrame"); var doc = frame.contentDocument; var innerFrame = doc.getElementById("uploadTarget"); var ret = innerFrame.contentDocument.getElementsByTagName("body")[0].innerHTML; var data = eval("(" + JSON.decode(ret) + ")"); //var data = eval("("+ret+")"); if (data=="0"){ alert("<?php echo JText::_('ERROR_SAVE_IMAGE'); ?>"); } else if (data=="") { } else { var upImage = new Element('img',{ 'class':'tutmainthumb', 'id':'tutThumb', 'src':'components/com_tutorial/helpers/image.php?img='+data }); upImage.inject('tutImage','top'); $('uploadIFrame').dispose(); } } </code></pre>
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<javascript><forms><joomla2.5>
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Joomla 2.5 upload file dynamically
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