package er.ajax.mootools;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import com.webobjects.appserver.WOActionResults;
import com.webobjects.appserver.WOContext;
import com.webobjects.appserver.WOElement;
import com.webobjects.appserver.WORequest;
import com.webobjects.appserver.WOResponse;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSMutableArray;
import com.webobjects.foundation.NSMutableDictionary;
import er.ajax.AjaxComponent;
import er.ajax.AjaxOption;
import er.ajax.AjaxOptions;
import er.ajax.AjaxUtils;
import er.extensions.appserver.ERXWOContext;
import er.extensions.foundation.ERXStringUtilities;
import er.extensions.foundation.ERXValueUtilities;
public class MTAjaxAutoComplete extends AjaxComponent {
private static final long serialVersionUID = 1L;
public String divName;
public String fieldName;
public String indicatorName;
public MTAjaxAutoComplete(WOContext context) {
super(context);
}
@Override
protected void addRequiredWebResources(WOResponse res) {
MTAjaxUtils.addScriptResourceInHead(context(), res, "MooTools", MTAjaxUtils.MOOTOOLS_CORE_JS);
MTAjaxUtils.addScriptResourceInHead(context(), res, "MooTools", "scripts/plugins/autocomplete/AutoCompleter.js");
}
/**
* Overridden to set the IDs for the field and the div tag.
*/
@Override
public void awake() {
super.awake();
divName = safeElementID() + "_div";
fieldName = safeElementID() + "_field";
indicatorName = safeElementID() + "_indicator";
}
@Override
public void sleep() {
divName = null;
fieldName = null;
indicatorName = null;
super.sleep();
}
/**
* Overridden because the component is stateless
*/
@Override
public boolean isStateless() {
return true;
}
public String indicator() {
String indicator = (String)valueForBinding("indicator");
if (indicator == null && valueForBinding("indicatorFilename") != null) {
indicator = "'" + indicatorName + "'";
}
return indicator;
}
protected NSDictionary<String, String> createAjaxOptions() {
NSMutableArray<AjaxOption> ajaxOptionsArray = new NSMutableArray<AjaxOption>();
ajaxOptionsArray.addObject(new AjaxOption("tokens", AjaxOption.STRING_ARRAY));
ajaxOptionsArray.addObject(new AjaxOption("frequency", AjaxOption.NUMBER));
ajaxOptionsArray.addObject(new AjaxOption("minChars", AjaxOption.NUMBER));
ajaxOptionsArray.addObject(new AjaxOption("indicator", indicator(), AjaxOption.SCRIPT));
ajaxOptionsArray.addObject(new AjaxOption("updateElement", AjaxOption.SCRIPT));
ajaxOptionsArray.addObject(new AjaxOption("afterUpdateElement", AjaxOption.SCRIPT));
ajaxOptionsArray.addObject(new AjaxOption("onShow", AjaxOption.SCRIPT));
ajaxOptionsArray.addObject(new AjaxOption("fullSearch", AjaxOption.BOOLEAN));
ajaxOptionsArray.addObject(new AjaxOption("partialSearch", AjaxOption.BOOLEAN));
ajaxOptionsArray.addObject(new AjaxOption("defaultValue", AjaxOption.STRING));
ajaxOptionsArray.addObject(new AjaxOption("select", AjaxOption.STRING));
ajaxOptionsArray.addObject(new AjaxOption("autoSelect", AjaxOption.BOOLEAN));
ajaxOptionsArray.addObject(new AjaxOption("choices", AjaxOption.NUMBER));
ajaxOptionsArray.addObject(new AjaxOption("partialChars", AjaxOption.NUMBER));
ajaxOptionsArray.addObject(new AjaxOption("ignoreCase", AjaxOption.BOOLEAN));
ajaxOptionsArray.addObject(new AjaxOption("activateOnFocus", AjaxOption.BOOLEAN));
NSMutableDictionary<String, String> options = AjaxOption.createAjaxOptionsDictionary(ajaxOptionsArray, this);
return options;
}
/**
* Overridden to add the initialization javascript for the auto completer.
*/
@Override
public void appendToResponse(WOResponse res, WOContext ctx) {
super.appendToResponse(res, ctx);
boolean isDisabled = hasBinding("disabled") && ((Boolean) valueForBinding("disabled")).booleanValue();
if ( !isDisabled ) {
boolean isLocal = hasBinding("isLocal") && ((Boolean) valueForBinding("isLocal")).booleanValue();
if (isLocal) {
StringBuffer str = new StringBuffer();
boolean isLocalSharedList = hasBinding("isLocalSharedList") && ((Boolean) valueForBinding("isLocalSharedList")).booleanValue();
String listJS = null;
if (isLocalSharedList) {
String varName = (String) valueForBinding("localSharedVarName");
@SuppressWarnings("unchecked")
NSMutableDictionary<String, String> userInfo = ERXWOContext.contextDictionary();
if (userInfo.objectForKey(varName) == null) {
String ljs = listeJS();
AjaxUtils.addScriptCodeInHead(res, ctx, "var " + varName + " = " + ljs + ";");
userInfo.setObjectForKey(ljs, varName);
}
listJS = varName;
} else {
listJS = listeJS();
}
str.append("<script type=\"text/javascript\">\n// <![CDATA[\n");
str.append("new MTAutocompleter.Local('");
str.append(fieldName);
str.append("','");
str.append(divName);
str.append("',");
str.append(listJS);
str.append(',');
AjaxOptions.appendToBuffer(createAjaxOptions(), str, ctx);
str.append(");\n// ]]>\n</script>\n");
res.appendContentString(String.valueOf(str));
} else {
String actionUrl = AjaxUtils.ajaxComponentActionUrl(ctx);
AjaxUtils.appendScriptHeader(res);
res.appendContentString("new Request.Autocompleter('"+fieldName+"', '"+divName+"', '"+actionUrl+"', ");
AjaxOptions.appendToResponse(createAjaxOptions(), res, ctx);
res.appendContentString(");");
AjaxUtils.appendScriptFooter(res);
}
}
}
String listeJS() {
StringBuilder str = new StringBuilder();
str.append("new Array(");
@SuppressWarnings("unchecked")
NSArray<Object> list = (NSArray<Object>) valueForBinding("list");
int max = list.count();
String cnt = "";
boolean hasItem = hasBinding("item");
for (int i = 0; i < max; i++) {
Object ds = list.objectAtIndex(i);
if (i > 0) {
str.append(',');
}
str.append("\n\"");
if (hasItem) {
setValueForBinding(ds, "item");
}
Object displayValue = valueForBinding("displayString", valueForBinding("item", ds));
str.append(displayValue.toString());
// TODO: We should escape the javascript string delimiter (") to keep the javascript interpreter happy.
//str.append(displayValue.toString().replaceAll("\"", "\\\\\\\\\"")); // doesn't work
str.append(cnt);
str.append("\"");
}
str.append(')');
return String.valueOf(str);
}
public String stringValue() {
String strValue = null;
if (hasBinding("selection")) {
Object selection = valueForBinding("selection");
if (selection != null) {
if (hasBinding("displayString")) {
setValueForBinding(selection, "item");
strValue = displayStringForValue(valueForBinding("value"));
}
else {
strValue = String.valueOf(selection);
}
}
else
strValue = (String) valueForBinding("value");
}
else if (hasBinding("value")) {
strValue = (String) valueForBinding("value");
}
return strValue;
}
protected String displayStringForValue(Object value) {
Object displayValue = valueForBinding("displayString", valueForBinding("item", value));
String displayString = displayValue == null ? null : displayValue.toString();
return displayString;
}
protected int maxItems() {
int maxItems = ERXValueUtilities.intValueWithDefault(valueForBinding("maxItems"), 50);
return maxItems;
}
public void setStringValue(String strValue) {
if (hasBinding("selection")) {
Object selection = null;
if (strValue != null) {
@SuppressWarnings("unchecked")
NSArray<Object> values = (NSArray<Object>) valueForBinding("list");
int maxItems = maxItems();
int itemsCount = 0;
for(Enumeration<Object> e = values.objectEnumerator(); e.hasMoreElements() && itemsCount++ < maxItems;) {
Object value = e.nextElement();
setValueForBinding(value, "item");
String displayString = displayStringForValue(value);
if (ERXStringUtilities.stringEqualsString(displayString, strValue)) {
selection = value;
break;
}
}
}
setValueForBinding(selection, "selection");
}
setValueForBinding(strValue, "value");
}
protected void appendItemToResponse(Object value, WOElement child, boolean hasItem, WOResponse response, WOContext context) {
response.appendContentString("<li>");
if(hasItem && child != null) {
setValueForBinding(value, "item");
context._setCurrentComponent(parent());
child.appendToResponse(response, context);
context._setCurrentComponent(this);
} else {
if(hasItem) {
setValueForBinding(value, "item");
}
response.appendContentString(displayStringForValue(value));
}
response.appendContentString("</li>");
}
/**
* Handles the Ajax request. Checks for the form value in the edit field,
* pushes it up to the parent and pulls the "list" binding. The parent is
* responsible for returning a list with some items that match the current value.
*/
@Override
public WOActionResults handleRequest(WORequest request, WOContext context) {
// String inputString = request.contentString();
String fieldValue = context.request().stringFormValueForKey(fieldName);
setValueForBinding(fieldValue, "value");
WOResponse response = AjaxUtils.createResponse(request, context);
response.appendContentString("<ul>");
int maxItems = maxItems();
int itemsCount = 0;
Object values = valueForBinding("list");
WOElement child = _childTemplate();
boolean hasItem = hasBinding("item");
if (values instanceof NSArray) {
for(@SuppressWarnings("unchecked")
Enumeration<Object> valueEnum = ((NSArray<Object>)values).objectEnumerator(); valueEnum.hasMoreElements() && itemsCount++ < maxItems;) {
appendItemToResponse(valueEnum.nextElement(), child, hasItem, response, context);
}
}
else if (values instanceof List) {
for(@SuppressWarnings("unchecked")
Iterator<Object> iter = ((List<Object>)values).iterator(); iter.hasNext() && itemsCount++ < maxItems;) {
appendItemToResponse(iter.next(), child, hasItem, response, context);
}
}
response.appendContentString("</ul>");
return response;
}
public String zcontainerName() {
return "ZContainer" + divName;
}
}