Chris@76: // This file contains javascript associated with a autosuggest control
Chris@76: function smc_AutoSuggest(oOptions)
Chris@76: {
Chris@76: 	this.opt = oOptions;
Chris@76: 
Chris@76: 	// Store the handle to the text box.
Chris@76: 	this.oTextHandle = document.getElementById(this.opt.sControlId);
Chris@76: 	this.oRealTextHandle = null;
Chris@76: 
Chris@76: 	this.oSuggestDivHandle = null;
Chris@76: 	this.sLastSearch = '';
Chris@76: 	this.sLastDirtySearch = '';
Chris@76: 	this.oSelectedDiv = null;
Chris@76: 	this.aCache = [];
Chris@76: 	this.aDisplayData = [];
Chris@76: 
Chris@76: 	this.sRetrieveURL = 'sRetrieveURL' in this.opt ? this.opt.sRetrieveURL : '%scripturl%action=suggest;suggest_type=%suggest_type%;search=%search%;%sessionVar%=%sessionID%;xml;time=%time%';
Chris@76: 
Chris@76: 	// How many objects can we show at once?
Chris@76: 	this.iMaxDisplayQuantity = 'iMaxDisplayQuantity' in this.opt ? this.opt.iMaxDisplayQuantity : 15;
Chris@76: 
Chris@76: 	// How many characters shall we start searching on?
Chris@76: 	this.iMinimumSearchChars = 'iMinimumSearchChars' in this.opt ? this.opt.iMinimumSearchChars : 3;
Chris@76: 
Chris@76: 	// Should selected items be added to a list?
Chris@76: 	this.bItemList = 'bItemList' in this.opt ? this.opt.bItemList : false;
Chris@76: 
Chris@76: 	// Are there any items that should be added in advance?
Chris@76: 	this.aListItems = 'aListItems' in this.opt ? this.opt.aListItems : [];
Chris@76: 
Chris@76: 	this.sItemTemplate = 'sItemTemplate' in this.opt ? this.opt.sItemTemplate : '<input type="hidden" name="%post_name%[]" value="%item_id%" /><a href="%item_href%" class="extern" onclick="window.open(this.href, \'_blank\'); return false;">%item_name%</a>&nbsp;<img src="%images_url%/pm_recipient_delete.gif" alt="%delete_text%" title="%delete_text%" onclick="return %self%.deleteAddedItem(%item_id%);" />';
Chris@76: 
Chris@76: 	this.sTextDeleteItem = 'sTextDeleteItem' in this.opt ? this.opt.sTextDeleteItem : '';
Chris@76: 
Chris@76: 	this.oCallback = {};
Chris@76: 	this.bDoAutoAdd = false;
Chris@76: 	this.iItemCount = 0;
Chris@76: 
Chris@76: 	this.oHideTimer = null;
Chris@76: 	this.bPositionComplete = false;
Chris@76: 
Chris@76: 	this.oXmlRequestHandle = null;
Chris@76: 
Chris@76: 	// Just make sure the page is loaded before calling the init.
Chris@76: 	addLoadEvent(this.opt.sSelf + '.init();');
Chris@76: }
Chris@76: 
Chris@76: smc_AutoSuggest.prototype.init = function()
Chris@76: {
Chris@76: 	if (!window.XMLHttpRequest)
Chris@76: 		return false;
Chris@76: 
Chris@76: 	// Create a div that'll contain the results later on.
Chris@76: 	this.oSuggestDivHandle = document.createElement('div');
Chris@76: 	this.oSuggestDivHandle.className = 'auto_suggest_div';
Chris@76: 	document.body.appendChild(this.oSuggestDivHandle);
Chris@76: 
Chris@76: 	// Create a backup text input.
Chris@76: 	this.oRealTextHandle = document.createElement('input');
Chris@76: 	this.oRealTextHandle.type = 'hidden';
Chris@76: 	this.oRealTextHandle.name = this.oTextHandle.name;
Chris@76: 	this.oRealTextHandle.value = this.oTextHandle.value;
Chris@76: 	this.oTextHandle.form.appendChild(this.oRealTextHandle);
Chris@76: 
Chris@76: 	// Disable autocomplete in any browser by obfuscating the name.
Chris@76: 	this.oTextHandle.name = 'dummy_' + Math.floor(Math.random() * 1000000);
Chris@76: 	this.oTextHandle.autocomplete = 'off';
Chris@76: 
Chris@76: 	this.oTextHandle.instanceRef = this;
Chris@76: 
Chris@76: 	var fOnKeyDown = function (oEvent) {
Chris@76: 		return this.instanceRef.handleKey(oEvent);
Chris@76: 	};
Chris@76: 	is_opera ? this.oTextHandle.onkeypress = fOnKeyDown : this.oTextHandle.onkeydown = fOnKeyDown;
Chris@76: 
Chris@76: 	this.oTextHandle.onkeyup = function (oEvent) {
Chris@76: 		return this.instanceRef.autoSuggestUpdate(oEvent);
Chris@76: 	};
Chris@76: 
Chris@76: 	this.oTextHandle.onchange = function (oEvent) {
Chris@76: 		return this.instanceRef.autoSuggestUpdate(oEvent);
Chris@76: 	};
Chris@76: 
Chris@76: 	this.oTextHandle.onblur = function (oEvent) {
Chris@76: 		return this.instanceRef.autoSuggestHide(oEvent);
Chris@76: 	};
Chris@76: 
Chris@76: 	this.oTextHandle.onfocus = function (oEvent) {
Chris@76: 		return this.instanceRef.autoSuggestUpdate(oEvent);
Chris@76: 	};
Chris@76: 
Chris@76: 	if (this.bItemList)
Chris@76: 	{
Chris@76: 		if ('sItemListContainerId' in this.opt)
Chris@76: 			this.oItemList = document.getElementById(this.opt.sItemListContainerId);
Chris@76: 		else
Chris@76: 		{
Chris@76: 			this.oItemList = document.createElement('div');
Chris@76: 			this.oTextHandle.parentNode.insertBefore(this.oItemList, this.oTextHandle.nextSibling);
Chris@76: 		}
Chris@76: 	}
Chris@76: 
Chris@76: 	if (this.aListItems.length > 0)
Chris@76: 		for (var i = 0, n = this.aListItems.length; i < n; i++)
Chris@76: 			this.addItemLink(this.aListItems[i].sItemId, this.aListItems[i].sItemName);
Chris@76: 
Chris@76: 	return true;
Chris@76: }
Chris@76: 
Chris@76: // Was it an enter key - if so assume they are trying to select something.
Chris@76: smc_AutoSuggest.prototype.handleKey = function(oEvent)
Chris@76: {
Chris@76: 	// Grab the event object, one way or the other
Chris@76: 	if (!oEvent)
Chris@76: 		oEvent = window.event;
Chris@76: 
Chris@76: 	// Get the keycode of the key that was pressed.
Chris@76: 	var iKeyPress = 0;
Chris@76: 	if ('keyCode' in oEvent)
Chris@76: 		iKeyPress = oEvent.keyCode;
Chris@76: 	else if ('which' in oEvent)
Chris@76: 		iKeyPress = oEvent.which;
Chris@76: 
Chris@76: 	switch (iKeyPress)
Chris@76: 	{
Chris@76: 		// Tab.
Chris@76: 		case 9:
Chris@76: 			if (this.aDisplayData.length > 0)
Chris@76: 			{
Chris@76: 				if (this.oSelectedDiv != null)
Chris@76: 					this.itemClicked(this.oSelectedDiv);
Chris@76: 				else
Chris@76: 					this.handleSubmit();
Chris@76: 			}
Chris@76: 
Chris@76: 			// Continue to the next control.
Chris@76: 			return true;
Chris@76: 		break;
Chris@76: 
Chris@76: 		// Enter.
Chris@76: 		case 13:
Chris@76: 			if (this.aDisplayData.length > 0 && this.oSelectedDiv != null)
Chris@76: 			{
Chris@76: 				this.itemClicked(this.oSelectedDiv);
Chris@76: 
Chris@76: 				// Do our best to stop it submitting the form!
Chris@76: 				return false;
Chris@76: 			}
Chris@76: 			else
Chris@76: 				return true;
Chris@76: 
Chris@76: 		break;
Chris@76: 
Chris@76: 		// Up/Down arrow?
Chris@76: 		case 38:
Chris@76: 		case 40:
Chris@76: 			if (this.aDisplayData.length && this.oSuggestDivHandle.style.visibility != 'hidden')
Chris@76: 			{
Chris@76: 				// Loop through the display data trying to find our entry.
Chris@76: 				var bPrevHandle = false;
Chris@76: 				var oToHighlight = null;
Chris@76: 				for (var i = 0; i < this.aDisplayData.length; i++)
Chris@76: 				{
Chris@76: 					// If we're going up and yet the top one was already selected don't go around.
Chris@76: 					if (this.oSelectedDiv != null && this.oSelectedDiv == this.aDisplayData[i] && i == 0 && iKeyPress == 38)
Chris@76: 					{
Chris@76: 						oToHighlight = this.oSelectedDiv;
Chris@76: 						break;
Chris@76: 					}
Chris@76: 					// If nothing is selected and we are going down then we select the first one.
Chris@76: 					if (this.oSelectedDiv == null && iKeyPress == 40)
Chris@76: 					{
Chris@76: 						oToHighlight = this.aDisplayData[i];
Chris@76: 						break;
Chris@76: 					}
Chris@76: 
Chris@76: 					// If the previous handle was the actual previously selected one and we're hitting down then this is the one we want.
Chris@76: 					if (bPrevHandle != false && bPrevHandle == this.oSelectedDiv && iKeyPress == 40)
Chris@76: 					{
Chris@76: 						oToHighlight = this.aDisplayData[i];
Chris@76: 						break;
Chris@76: 					}
Chris@76: 					// If we're going up and this is the previously selected one then we want the one before, if there was one.
Chris@76: 					if (bPrevHandle != false && this.aDisplayData[i] == this.oSelectedDiv && iKeyPress == 38)
Chris@76: 					{
Chris@76: 						oToHighlight = bPrevHandle;
Chris@76: 						break;
Chris@76: 					}
Chris@76: 					// Make the previous handle this!
Chris@76: 					bPrevHandle = this.aDisplayData[i];
Chris@76: 				}
Chris@76: 
Chris@76: 				// If we don't have one to highlight by now then it must be the last one that we're after.
Chris@76: 				if (oToHighlight == null)
Chris@76: 					oToHighlight = bPrevHandle;
Chris@76: 
Chris@76: 				// Remove any old highlighting.
Chris@76: 				if (this.oSelectedDiv != null)
Chris@76: 					this.itemMouseOut(this.oSelectedDiv);
Chris@76: 				// Mark what the selected div now is.
Chris@76: 				this.oSelectedDiv = oToHighlight;
Chris@76: 				this.itemMouseOver(this.oSelectedDiv);
Chris@76: 			}
Chris@76: 		break;
Chris@76: 	}
Chris@76: 	return true;
Chris@76: }
Chris@76: 
Chris@76: // Functions for integration.
Chris@76: smc_AutoSuggest.prototype.registerCallback = function(sCallbackType, sCallback)
Chris@76: {
Chris@76: 	switch (sCallbackType)
Chris@76: 	{
Chris@76: 		case 'onBeforeAddItem':
Chris@76: 			this.oCallback.onBeforeAddItem = sCallback;
Chris@76: 			break;
Chris@76: 
Chris@76: 		case 'onAfterAddItem':
Chris@76: 			this.oCallback.onAfterAddItem = sCallback;
Chris@76: 			break;
Chris@76: 
Chris@76: 		case 'onAfterDeleteItem':
Chris@76: 			this.oCallback.onAfterDeleteItem = sCallback;
Chris@76: 			break;
Chris@76: 
Chris@76: 		case 'onBeforeUpdate':
Chris@76: 			this.oCallback.onBeforeUpdate = sCallback;
Chris@76: 			break;
Chris@76: 	}
Chris@76: }
Chris@76: 
Chris@76: // User hit submit?
Chris@76: smc_AutoSuggest.prototype.handleSubmit = function()
Chris@76: {
Chris@76: 	var bReturnValue = true;
Chris@76: 	var oFoundEntry = null;
Chris@76: 
Chris@76: 	// Do we have something that matches the current text?
Chris@76: 	for (var i = 0; i < this.aCache.length; i++)
Chris@76: 	{
Chris@76: 		if (this.sLastSearch.toLowerCase() == this.aCache[i].sItemName.toLowerCase().substr(0, this.sLastSearch.length))
Chris@76: 		{
Chris@76: 			// Exact match?
Chris@76: 			if (this.sLastSearch.length == this.aCache[i].sItemName.length)
Chris@76: 			{
Chris@76: 				// This is the one!
Chris@76: 				oFoundEntry = {
Chris@76: 					sItemId: this.aCache[i].sItemId,
Chris@76: 					sItemName: this.aCache[i].sItemName
Chris@76: 				};
Chris@76: 				break;
Chris@76: 			}
Chris@76: 
Chris@76: 			// Not an exact match, but it'll do for now.
Chris@76: 			else
Chris@76: 			{
Chris@76: 				// If we have two matches don't find anything.
Chris@76: 				if (oFoundEntry != null)
Chris@76: 					bReturnValue = false;
Chris@76: 				else
Chris@76: 					oFoundEntry = {
Chris@76: 						sItemId: this.aCache[i].sItemId,
Chris@76: 						sItemName: this.aCache[i].sItemName
Chris@76: 					};
Chris@76: 			}
Chris@76: 		}
Chris@76: 	}
Chris@76: 
Chris@76: 	if (oFoundEntry == null || bReturnValue == false)
Chris@76: 		return bReturnValue;
Chris@76: 	else
Chris@76: 	{
Chris@76: 		this.addItemLink(oFoundEntry.sItemId, oFoundEntry.sItemName, true);
Chris@76: 		return false;
Chris@76: 	}
Chris@76: }
Chris@76: 
Chris@76: // Positions the box correctly on the window.
Chris@76: smc_AutoSuggest.prototype.positionDiv = function()
Chris@76: {
Chris@76: 	// Only do it once.
Chris@76: 	if (this.bPositionComplete)
Chris@76: 		return true;
Chris@76: 
Chris@76: 	this.bPositionComplete = true;
Chris@76: 
Chris@76: 	// Put the div under the text box.
Chris@76: 	var aParentPos = smf_itemPos(this.oTextHandle);
Chris@76: 
Chris@76: 	this.oSuggestDivHandle.style.left = aParentPos[0] + 'px';
Chris@76: 	this.oSuggestDivHandle.style.top = (aParentPos[1] + this.oTextHandle.offsetHeight) + 'px';
Chris@76: 	this.oSuggestDivHandle.style.width = this.oTextHandle.style.width;
Chris@76: 
Chris@76: 	return true;
Chris@76: }
Chris@76: 
Chris@76: // Do something after clicking an item.
Chris@76: smc_AutoSuggest.prototype.itemClicked = function(oCurElement)
Chris@76: {
Chris@76: 	// Is there a div that we are populating?
Chris@76: 	if (this.bItemList)
Chris@76: 		this.addItemLink(oCurElement.sItemId, oCurElement.innerHTML);
Chris@76: 
Chris@76: 	// Otherwise clear things down.
Chris@76: 	else
Chris@76: 		this.oTextHandle.value = oCurElement.innerHTML.php_unhtmlspecialchars();
Chris@76: 
Chris@76: 	this.oRealTextHandle.value = this.oTextHandle.value;
Chris@76: 	this.autoSuggestActualHide();
Chris@76: 	this.oSelectedDiv = null;
Chris@76: }
Chris@76: 
Chris@76: // Remove the last searched for name from the search box.
Chris@76: smc_AutoSuggest.prototype.removeLastSearchString = function ()
Chris@76: {
Chris@76: 	// Remove the text we searched for from the div.
Chris@76: 	var sTempText = this.oTextHandle.value.toLowerCase();
Chris@76: 	var iStartString = sTempText.indexOf(this.sLastSearch.toLowerCase());
Chris@76: 	// Just attempt to remove the bits we just searched for.
Chris@76: 	if (iStartString != -1)
Chris@76: 	{
Chris@76: 		while (iStartString > 0)
Chris@76: 		{
Chris@76: 			if (sTempText.charAt(iStartString - 1) == '"' || sTempText.charAt(iStartString - 1) == ',' || sTempText.charAt(iStartString - 1) == ' ')
Chris@76: 			{
Chris@76: 				iStartString--;
Chris@76: 				if (sTempText.charAt(iStartString - 1) == ',')
Chris@76: 					break;
Chris@76: 			}
Chris@76: 			else
Chris@76: 				break;
Chris@76: 		}
Chris@76: 
Chris@76: 		// Now remove anything from iStartString upwards.
Chris@76: 		this.oTextHandle.value = this.oTextHandle.value.substr(0, iStartString);
Chris@76: 	}
Chris@76: 	// Just take it all.
Chris@76: 	else
Chris@76: 		this.oTextHandle.value = '';
Chris@76: }
Chris@76: 
Chris@76: // Add a result if not already done.
Chris@76: smc_AutoSuggest.prototype.addItemLink = function (sItemId, sItemName, bFromSubmit)
Chris@76: {
Chris@76: 	// Increase the internal item count.
Chris@76: 	this.iItemCount ++;
Chris@76: 
Chris@76: 	// If there's a callback then call it.
Chris@76: 	if ('oCallback' in this && 'onBeforeAddItem' in this.oCallback && typeof(this.oCallback.onBeforeAddItem) == 'string')
Chris@76: 	{
Chris@76: 		// If it returns false the item must not be added.
Chris@76: 		if (!eval(this.oCallback.onBeforeAddItem + '(' + this.opt.sSelf + ', \'' + sItemId + '\');'))
Chris@76: 			return;
Chris@76: 	}
Chris@76: 
Chris@76: 	var oNewDiv = document.createElement('div');
Chris@76: 	oNewDiv.id = 'suggest_' + this.opt.sSuggestId + '_' + sItemId;
Chris@76: 	setInnerHTML(oNewDiv, this.sItemTemplate.replace(/%post_name%/g, this.opt.sPostName).replace(/%item_id%/g, sItemId).replace(/%item_href%/g, smf_prepareScriptUrl(smf_scripturl) + this.opt.sURLMask.replace(/%item_id%/g, sItemId)).replace(/%item_name%/g, sItemName).replace(/%images_url%/g, smf_images_url).replace(/%self%/g, this.opt.sSelf).replace(/%delete_text%/g, this.sTextDeleteItem));
Chris@76: 	this.oItemList.appendChild(oNewDiv);
Chris@76: 
Chris@76: 	// If there's a registered callback, call it.
Chris@76: 	if ('oCallback' in this && 'onAfterAddItem' in this.oCallback && typeof(this.oCallback.onAfterAddItem) == 'string')
Chris@76: 		eval(this.oCallback.onAfterAddItem + '(' + this.opt.sSelf + ', \'' + oNewDiv.id + '\', ' + this.iItemCount + ');');
Chris@76: 
Chris@76: 	// Clear the div a bit.
Chris@76: 	this.removeLastSearchString();
Chris@76: 
Chris@76: 	// If we came from a submit, and there's still more to go, turn on auto add for all the other things.
Chris@76: 	this.bDoAutoAdd = this.oTextHandle.value != '' && bFromSubmit;
Chris@76: 
Chris@76: 	// Update the fellow..
Chris@76: 	this.autoSuggestUpdate();
Chris@76: }
Chris@76: 
Chris@76: // Delete an item that has been added, if at all?
Chris@76: smc_AutoSuggest.prototype.deleteAddedItem = function (sItemId)
Chris@76: {
Chris@76: 	var oDiv = document.getElementById('suggest_' + this.opt.sSuggestId + '_' + sItemId);
Chris@76: 
Chris@76: 	// Remove the div if it exists.
Chris@76: 	if (typeof(oDiv) == 'object' && oDiv != null)
Chris@76: 	{
Chris@76: 		oDiv.parentNode.removeChild(document.getElementById('suggest_' + this.opt.sSuggestId + '_' + sItemId));
Chris@76: 
Chris@76: 		// Decrease the internal item count.
Chris@76: 		this.iItemCount --;
Chris@76: 
Chris@76: 		// If there's a registered callback, call it.
Chris@76: 		if ('oCallback' in this && 'onAfterDeleteItem' in this.oCallback && typeof(this.oCallback.onAfterDeleteItem) == 'string')
Chris@76: 			eval(this.oCallback.onAfterDeleteItem + '(' + this.opt.sSelf + ', ' + this.iItemCount + ');');
Chris@76: 	}
Chris@76: 
Chris@76: 	return false;
Chris@76: }
Chris@76: 
Chris@76: // Hide the box.
Chris@76: smc_AutoSuggest.prototype.autoSuggestHide = function ()
Chris@76: {
Chris@76: 	// Delay to allow events to propogate through....
Chris@76: 	this.oHideTimer = setTimeout(this.opt.sSelf + '.autoSuggestActualHide();', 250);
Chris@76: }
Chris@76: 
Chris@76: // Do the actual hiding after a timeout.
Chris@76: smc_AutoSuggest.prototype.autoSuggestActualHide = function()
Chris@76: {
Chris@76: 	this.oSuggestDivHandle.style.display = 'none';
Chris@76: 	this.oSuggestDivHandle.style.visibility = 'hidden';
Chris@76: 	this.oSelectedDiv = null;
Chris@76: }
Chris@76: 
Chris@76: // Show the box.
Chris@76: smc_AutoSuggest.prototype.autoSuggestShow = function()
Chris@76: {
Chris@76: 	if (this.oHideTimer)
Chris@76: 	{
Chris@76: 		clearTimeout(this.oHideTimer);
Chris@76: 		this.oHideTimer = false;
Chris@76: 	}
Chris@76: 
Chris@76: 	this.positionDiv();
Chris@76: 
Chris@76: 	this.oSuggestDivHandle.style.visibility = 'visible';
Chris@76: 	this.oSuggestDivHandle.style.display = '';
Chris@76: }
Chris@76: 
Chris@76: // Populate the actual div.
Chris@76: smc_AutoSuggest.prototype.populateDiv = function(aResults)
Chris@76: {
Chris@76: 	// Cannot have any children yet.
Chris@76: 	while (this.oSuggestDivHandle.childNodes.length > 0)
Chris@76: 	{
Chris@76: 		// Tidy up the events etc too.
Chris@76: 		this.oSuggestDivHandle.childNodes[0].onmouseover = null;
Chris@76: 		this.oSuggestDivHandle.childNodes[0].onmouseout = null;
Chris@76: 		this.oSuggestDivHandle.childNodes[0].onclick = null;
Chris@76: 
Chris@76: 		this.oSuggestDivHandle.removeChild(this.oSuggestDivHandle.childNodes[0]);
Chris@76: 	}
Chris@76: 
Chris@76: 	// Something to display?
Chris@76: 	if (typeof(aResults) == 'undefined')
Chris@76: 	{
Chris@76: 		this.aDisplayData = [];
Chris@76: 		return false;
Chris@76: 	}
Chris@76: 
Chris@76: 	var aNewDisplayData = [];
Chris@76: 	for (var i = 0; i < (aResults.length > this.iMaxDisplayQuantity ? this.iMaxDisplayQuantity : aResults.length); i++)
Chris@76: 	{
Chris@76: 		// Create the sub element
Chris@76: 		var oNewDivHandle = document.createElement('div');
Chris@76: 		oNewDivHandle.sItemId = aResults[i].sItemId;
Chris@76: 		oNewDivHandle.className = 'auto_suggest_item';
Chris@76: 		oNewDivHandle.innerHTML = aResults[i].sItemName;
Chris@76: 		//oNewDivHandle.style.width = this.oTextHandle.style.width;
Chris@76: 
Chris@76: 		this.oSuggestDivHandle.appendChild(oNewDivHandle);
Chris@76: 
Chris@76: 		// Attach some events to it so we can do stuff.
Chris@76: 		oNewDivHandle.instanceRef = this;
Chris@76: 		oNewDivHandle.onmouseover = function (oEvent)
Chris@76: 		{
Chris@76: 			this.instanceRef.itemMouseOver(this);
Chris@76: 		}
Chris@76: 		oNewDivHandle.onmouseout = function (oEvent)
Chris@76: 		{
Chris@76: 			this.instanceRef.itemMouseOut(this);
Chris@76: 		}
Chris@76: 		oNewDivHandle.onclick = function (oEvent)
Chris@76: 		{
Chris@76: 			this.instanceRef.itemClicked(this);
Chris@76: 		}
Chris@76: 
Chris@76: 
Chris@76: 		aNewDisplayData[i] = oNewDivHandle;
Chris@76: 	}
Chris@76: 
Chris@76: 	this.aDisplayData = aNewDisplayData;
Chris@76: 
Chris@76: 	return true;
Chris@76: }
Chris@76: 
Chris@76: // Refocus the element.
Chris@76: smc_AutoSuggest.prototype.itemMouseOver = function (oCurElement)
Chris@76: {
Chris@76: 	this.oSelectedDiv = oCurElement;
Chris@76: 	oCurElement.className = 'auto_suggest_item_hover';
Chris@76: }
Chris@76: 
Chris@76: // Onfocus the element
Chris@76: smc_AutoSuggest.prototype.itemMouseOut = function (oCurElement)
Chris@76: {
Chris@76: 	oCurElement.className = 'auto_suggest_item';
Chris@76: }
Chris@76: 
Chris@76: smc_AutoSuggest.prototype.onSuggestionReceived = function (oXMLDoc)
Chris@76: {
Chris@76: 	var sQuoteText = '';
Chris@76: 	var aItems = oXMLDoc.getElementsByTagName('item');
Chris@76: 	this.aCache = [];
Chris@76: 	for (var i = 0; i < aItems.length; i++)
Chris@76: 	{
Chris@76: 		this.aCache[i] = {
Chris@76: 			sItemId: aItems[i].getAttribute('id'),
Chris@76: 			sItemName: aItems[i].childNodes[0].nodeValue
Chris@76: 		};
Chris@76: 
Chris@76: 		// If we're doing auto add and we find the exact person, then add them!
Chris@76: 		if (this.bDoAutoAdd && this.sLastSearch == this.aCache[i].sItemName)
Chris@76: 		{
Chris@76: 			var oReturnValue = {
Chris@76: 				sItemId: this.aCache[i].sItemId,
Chris@76: 				sItemName: this.aCache[i].sItemName
Chris@76: 			};
Chris@76: 			this.aCache = [];
Chris@76: 			return this.addItemLink(oReturnValue.sItemId, oReturnValue.sItemName, true);
Chris@76: 		}
Chris@76: 	}
Chris@76: 
Chris@76: 	// Check we don't try to keep auto updating!
Chris@76: 	this.bDoAutoAdd = false;
Chris@76: 
Chris@76: 	// Populate the div.
Chris@76: 	this.populateDiv(this.aCache);
Chris@76: 
Chris@76: 	// Make sure we can see it - if we can.
Chris@76: 	if (aItems.length == 0)
Chris@76: 		this.autoSuggestHide();
Chris@76: 	else
Chris@76: 		this.autoSuggestShow();
Chris@76: 
Chris@76: 	return true;
Chris@76: }
Chris@76: 
Chris@76: // Get a new suggestion.
Chris@76: smc_AutoSuggest.prototype.autoSuggestUpdate = function ()
Chris@76: {
Chris@76: 	// If there's a callback then call it.
Chris@76: 	if ('onBeforeUpdate' in this.oCallback && typeof(this.oCallback.onBeforeUpdate) == 'string')
Chris@76: 	{
Chris@76: 		// If it returns false the item must not be added.
Chris@76: 		if (!eval(this.oCallback.onBeforeUpdate + '(' + this.opt.sSelf + ');'))
Chris@76: 			return false;
Chris@76: 	}
Chris@76: 
Chris@76: 	this.oRealTextHandle.value = this.oTextHandle.value;
Chris@76: 
Chris@76: 	if (isEmptyText(this.oTextHandle))
Chris@76: 	{
Chris@76: 		this.aCache = [];
Chris@76: 
Chris@76: 		this.populateDiv();
Chris@76: 
Chris@76: 		this.autoSuggestHide();
Chris@76: 
Chris@76: 		return true;
Chris@76: 	}
Chris@76: 
Chris@76: 	// Nothing changed?
Chris@76: 	if (this.oTextHandle.value == this.sLastDirtySearch)
Chris@76: 		return true;
Chris@76: 	this.sLastDirtySearch = this.oTextHandle.value;
Chris@76: 
Chris@76: 	// We're only actually interested in the last string.
Chris@76: 	var sSearchString = this.oTextHandle.value.replace(/^("[^"]+",[ ]*)+/, '').replace(/^([^,]+,[ ]*)+/, '');
Chris@76: 	if (sSearchString.substr(0, 1) == '"')
Chris@76: 		sSearchString = sSearchString.substr(1);
Chris@76: 
Chris@76: 	// Stop replication ASAP.
Chris@76: 	var sRealLastSearch = this.sLastSearch;
Chris@76: 	this.sLastSearch = sSearchString;
Chris@76: 
Chris@76: 	// Either nothing or we've completed a sentance.
Chris@76: 	if (sSearchString == '' || sSearchString.substr(sSearchString.length - 1) == '"')
Chris@76: 	{
Chris@76: 		this.populateDiv();
Chris@76: 		return true;
Chris@76: 	}
Chris@76: 
Chris@76: 	// Nothing?
Chris@76: 	if (sRealLastSearch == sSearchString)
Chris@76: 		return true;
Chris@76: 
Chris@76: 	// Too small?
Chris@76: 	else if (sSearchString.length < this.iMinimumSearchChars)
Chris@76: 	{
Chris@76: 		this.aCache = [];
Chris@76: 		this.autoSuggestHide();
Chris@76: 		return true;
Chris@76: 	}
Chris@76: 	else if (sSearchString.substr(0, sRealLastSearch.length) == sRealLastSearch)
Chris@76: 	{
Chris@76: 		// Instead of hitting the server again, just narrow down the results...
Chris@76: 		var aNewCache = [];
Chris@76: 		var j = 0;
Chris@76: 		var sLowercaseSearch = sSearchString.toLowerCase();
Chris@76: 		for (var k = 0; k < this.aCache.length; k++)
Chris@76: 		{
Chris@76: 			if (this.aCache[k].sItemName.substr(0, sSearchString.length).toLowerCase() == sLowercaseSearch)
Chris@76: 				aNewCache[j++] = this.aCache[k];
Chris@76: 		}
Chris@76: 
Chris@76: 		this.aCache = [];
Chris@76: 		if (aNewCache.length != 0)
Chris@76: 		{
Chris@76: 			this.aCache = aNewCache;
Chris@76: 			// Repopulate.
Chris@76: 			this.populateDiv(this.aCache);
Chris@76: 
Chris@76: 			// Check it can be seen.
Chris@76: 			this.autoSuggestShow();
Chris@76: 
Chris@76: 			return true;
Chris@76: 		}
Chris@76: 	}
Chris@76: 
Chris@76: 	// In progress means destroy!
Chris@76: 	if (typeof(this.oXmlRequestHandle) == 'object' && this.oXmlRequestHandle != null)
Chris@76: 		this.oXmlRequestHandle.abort();
Chris@76: 
Chris@76: 	// Clean the text handle.
Chris@76: 	sSearchString = sSearchString.php_to8bit().php_urlencode();
Chris@76: 
Chris@76: 	// Get the document.
Chris@76: 	this.tmpMethod = getXMLDocument;
Chris@76: 	this.oXmlRequestHandle = this.tmpMethod(this.sRetrieveURL.replace(/%scripturl%/g, smf_prepareScriptUrl(smf_scripturl)).replace(/%suggest_type%/g, this.opt.sSearchType).replace(/%search%/g, sSearchString).replace(/%sessionVar%/g, this.opt.sSessionVar).replace(/%sessionID%/g, this.opt.sSessionId).replace(/%time%/g, new Date().getTime()), this.onSuggestionReceived);
Chris@76: 	delete this.tmpMethod;
Chris@76: 
Chris@76: 	return true;
Chris@76: }