OO-144: make possible to check only the visible length of string without...

OO-144: make possible to check only the visible length of string without subtle encoding issues (which are only databse relevant)

src/main/java/org/olat/core/gui/components/form/flexible/elements/TextElement.java

@@ -145,4 +145,11 @@ public interface TextElement extends FormItem{
 	 */
 	public void setMaxLength(int maxLength);
 	
+	/**
+	 * Check the visible length of the text (can be used for datas saved in XML file
+	 * but not for DB)
+	 * @param checkVisibleLength
+	 */
+	public void setCheckVisibleLength(boolean checkVisibleLength);
+	
 }
\ No newline at end of file

src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/AbstractTextElement.java

@@ -75,6 +75,7 @@ public abstract class AbstractTextElement extends FormItemImpl implements TextEl
 	private int notLongerLength;
 	protected int displaySize;
 	protected int maxlength = -1; //default no maxlength restriction
+	protected boolean checkVisibleLength = false;
 	private String notLongerThanErrorKey;
 	private String checkForOtherValue;
 	private String otherValueErrorKey;
@@ -204,7 +205,10 @@ public abstract class AbstractTextElement extends FormItemImpl implements TextEl
 		this.maxlength = maxLength;
 	}
 
-	
+	public void setCheckVisibleLength(boolean checkVisibleLength) {
+		this.checkVisibleLength = checkVisibleLength;
+	}
+
 	/**
 	 * @param errorKey
 	 * @return
@@ -245,7 +249,11 @@ public abstract class AbstractTextElement extends FormItemImpl implements TextEl
 	private boolean notLongerThan(){
 		boolean lengthError = false;
 		try {
-			if (value.length() > notLongerLength || value.getBytes("UTF-8").length > notLongerLength) {
+			if(checkVisibleLength) {
+				if (value.length() > notLongerLength) {
+					lengthError = true;
+				}
+			} else if (value.length() > notLongerLength || value.getBytes("UTF-8").length > notLongerLength) {
 				lengthError = true;
 			} 
 		} catch (UnsupportedEncodingException e) {

src/main/java/org/olat/course/editor/NodeConfigFormController.java

@@ -145,6 +145,7 @@ public class NodeConfigFormController extends FormBasicController {
 		// add the short title text input element
 		shortTitle = uifactory.addTextElement("nodeConfigForm.menutitle", "nodeConfigForm.menutitle", SHORT_TITLE_MAX_LENGTH, (menuTitle == null ? "": menuTitle), formLayout);
 		shortTitle.setMandatory(true);
+		shortTitle.setCheckVisibleLength(true);
 		
 		// add the title input text element
 		title = uifactory.addTextElement("nodeConfigForm.displaytitle", "nodeConfigForm.displaytitle", 255, (displayTitle==null? "": displayTitle), formLayout);