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/**
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* Expand subdirectories withing filebrowser, using http requests to the server
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* This code is very dependant on the exact HTML of the table it works upon.
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* The trigger should be the first cell, and should contain an anchor referencing
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* the file URL, and an empty tag where the +/- symbol can be displayed
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*
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* @author dman
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* $Id: filebrowser.js,v 1.1.2.2 2006/09/23 01:01:42 dman Exp $
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*/
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if (isJsEnabled()) {
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addLoadEvent(filebrowserAutoAttach);
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}
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/**
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* Attaches the expand behaviour to the filebrowser row.
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*/
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function filebrowserAutoAttach() {
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filebrowserAutoAttachTo('span');
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filebrowserAutoAttachTo('td');
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}
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function filebrowserAutoAttachTo(tagName) {
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var cells = document.getElementsByTagName(tagName);
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if(!cells)return;
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for (var i = 0; cell = cells[i]; i++) {
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if(!cell) continue
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marker = cell.firstChild;
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if(marker)marker = marker.nextSibling;
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if(marker && ! hasClass(marker, 'expando')){ marker = 0 }
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if (hasClass(cell, 'fileBrowserExpand')) {
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cell.onclick = expand_filebrowser;
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if(marker){
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marker.innerHTML = '+';
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marker.setAttribute('title','expand');
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} // else alert("No Marker ... "+cell.outerHTML)
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}
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if (hasClass(cell, 'fileBrowserContract')) {
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cell.onclick = contract_filebrowser;
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if(marker){
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marker.innerHTML = '-';
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marker.setAttribute('title','contract');
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}
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}
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if (hasClass(cell, 'fileBrowserUp')) {
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cell.onclick = shiftup_filebrowser;
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if(marker){
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marker.innerHTML = '^';
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marker.setAttribute('title','up');
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}
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}
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if (hasClass(cell, 'fileBrowserToggle')) {
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cell.onclick = toggle_filebrowser;
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}
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}
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}
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/**
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* Event handler. ID the context, set a progress bar and make the request
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*/
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function expand_filebrowser(trigger){
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trigger = trigger? trigger : this;
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if(trigger.target){trigger=trigger.target;}
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// work up to the td this click came from. That's the trigger we hinge on.
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while ((trigger.nodeName!='TD')&&(trigger.nodeName!='SPAN')&&(trigger=trigger.parentNode)){;}
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var link = trigger.firstChild;
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var uri = link.getAttribute('href')+'&d='+new Date();
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// date suffix avoids some abberant http request caching
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var row = trigger.parentNode;
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var rowid = trigger.id + '_row';
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row.id = rowid;
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wrapperid = trigger.id+'_content';
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if($(wrapperid)) contract_filebrowser(trigger); // remove an old one?
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// Create space to put the new stuff into
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// This is done differently for LIs vs TRs
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switch(row.nodeName){
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case 'LI' :
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wrapper = document.createElement('div');
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row.appendChild(wrapper);
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break;
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case 'TR' :
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tr = document.createElement('tr');
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tr.setAttribute('id',trigger.id+'_content_row')
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if(after = row.nextSibling)
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row.parentNode.insertBefore(tr,after);
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else
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row.parentNode.appendChild(tr);
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td = document.createElement('td');
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tr.appendChild(td);
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// layout goes hoopy if I depend too much on accurate colspans in IE
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wrapper = document.createElement('td');
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wrapper.setAttribute('colSpan',row.childNodes.length-1);
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tr.appendChild(wrapper);
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break;
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}
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wrapper.setAttribute('id',wrapperid);
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trigger.progress = add_progress_bar(wrapper);
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wrapper.trigger = trigger;
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// window.open(uri,'new');
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trigger.onclick = null; // prevent double-click
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HTTPGet(uri, display_subdirectory, wrapperid)
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}
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function add_progress_bar(wrapper){
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wrapper.progress = new progressBar('uploadprogress');
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wrapper.progress.setProgress(-1, '');
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wrapper.progress.element.style.width = '100%';
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wrapper.progress.element.style.height = wrapper.offsetHeight/2 +'px';
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wrapper.style.height = '10px';
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wrapper.appendChild(wrapper.progress.element);
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return wrapper.progress;
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}
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/**
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* Content has arrived, place it inline
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*/
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function display_subdirectory(response, handle, wrapperid){
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wrapper = $(wrapperid)
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if(!wrapper){alert("No "+wrapperid+" to put directory listing in.\nSomething went wrong with the formatting.");return;}
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if(wrapper.progress)
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removeNode(wrapper.progress.element);
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wrapper.progress = null;
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wrapper.style.height = 'auto'; // needed to allow it to expand again
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try{
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if(response) wrapper.innerHTML = response;
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else alert("Bad (null) response from request")
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} catch(e) {
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clipboardData.setData("Text", response);
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alert( "Unable to insert response in the document. The returned HTML may not be valid to put there.\nThe problem HTML was copied to clipboard for reference." );
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}
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if(wrapper.trigger){
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wrapper.trigger.className = 'fileBrowserContract list_expander';
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}
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// Need to do this again to apply events to the new markup
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filebrowserAutoAttach();
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if(typeof(toggleTreeAutoAttach)=='function')toggleTreeAutoAttach();
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return;
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}
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/**
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* Event handler for clicking '-' - remove the subdir content and toggle action back to 'expand'
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*/
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function contract_filebrowser(trigger){
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trigger = trigger? trigger : this;
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if(trigger.target){trigger=trigger.target;}
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while ((trigger.nodeName!='TD')&&(trigger.nodeName!='SPAN')&&(trigger=trigger.parentNode)){;}
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var row = trigger.parentNode;
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if(wrapper = $(trigger.id+'_content')) // li version
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wrapper.parentNode.removeChild(wrapper);
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if(wrapper = $(trigger.id+'_content_row')) // table version
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wrapper.parentNode.removeChild(wrapper);
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trigger.className = 'fileBrowserExpand list_expander';
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filebrowserAutoAttach()
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}
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function toggle_filebrowser(trigger){
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trigger = trigger? trigger : this;
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if(trigger.target){trigger=trigger.target;}
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// work up to the tr, and down to the first td (in case trigger was launched from another cell)
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while ((trigger.nodeName!='TR')&&(trigger.nodeName!='LI')&&(trigger=trigger.parentNode)){;}
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// now scan the current row to find the right trigger that holds the expando code
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expando = trigger.firstChild;
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while (expando){
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if (hasClass(expando, 'fileBrowserExpand')) {expand_filebrowser(expando)}
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else if (hasClass(expando, 'fileBrowserContract')) {contract_filebrowser(expando)}
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expando = expando.nextSibling;
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}
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}
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/**
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* Tricky. Replace the container of the trigger with a list of this items parents.
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*/
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function shiftup_filebrowser(trigger){
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trigger = trigger? trigger : this;
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if(trigger.target){trigger=trigger.target;}
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while ((trigger.nodeName!='TD')&&(trigger=trigger.parentNode)){;}
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var link = trigger.firstChild;
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var uri = link.getAttribute('href')+'&d='+new Date();
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// Now find current containing table
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var container = trigger;
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while ((container.nodeName!='TABLE')&&(container=container.parentNode)){;}
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container=container.parentNode;
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wrapperid = container.getAttribute('id');
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if(! wrapperid){
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wrapperid = 'up-target'
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container.setAttribute('id',wrapperid);
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}
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p = new progressBar('uploadprogress');
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p.setProgress(-1, '');
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p.element.style.width = '100%';
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container.appendChild(p.element);
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container.progress = p;
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trigger.onclick = null; // prevent double-click
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HTTPGet(uri, display_subdirectory, wrapperid)
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}
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