* fixed c&p when not editable
* fixed IAE when calling setText("")

bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/DefaultContent.java

diff --git a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/DefaultContent.java b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/DefaultContent.java
index cd75199..adf6652 100644
--- a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/DefaultContent.java
+++ b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/DefaultContent.java
@@ -907,7 +907,7 @@
 		TextChangedEvent textSet = TextChangedEvent.textSet(this);

 

 		for (TextChangeListener l : this.textListeners) {

-			l.textChanged(textSet);

+			l.textSet(textSet);

 		}

 	}

 

bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/StyledTextArea.java

diff --git a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/StyledTextArea.java b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/StyledTextArea.java
index bbc84da..f76c37d 100644
--- a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/StyledTextArea.java
+++ b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/StyledTextArea.java
@@ -130,15 +130,15 @@
 
 	private int lastTextChangeStart;
 
-	private int lastTextChangeNewLineCount;
+//	private int lastTextChangeNewLineCount;
 
 	private int lastTextChangeNewCharCount;
 
-	private int lastTextChangeReplaceLineCount;
+//	private int lastTextChangeReplaceLineCount;
 
 	private int lastTextChangeReplaceCharCount;
 
-	private int lastCharCount;
+//	private int lastCharCount;
 
 	/**
 	 * Create a new control
@@ -158,14 +158,15 @@
 	// }
 
 	void handleTextChanging(TextChangingEvent event) {
+		System.err.println("CHANGING: " + event);
 		if (event.replaceCharCount < 0) {
 			event.offset += event.replaceCharCount;
 			event.replaceCharCount *= -1;
 		}
 		 this.lastTextChangeStart = event.offset;
-		 this.lastTextChangeNewLineCount = event.newLineCount;
+//		 this.lastTextChangeNewLineCount = event.newLineCount;
 		 this.lastTextChangeNewCharCount = event.newCharCount;
-		 this.lastTextChangeReplaceLineCount = event.replaceLineCount;
+//		 this.lastTextChangeReplaceLineCount = event.replaceLineCount;
 		 this.lastTextChangeReplaceCharCount = event.replaceCharCount;
 
 		this.renderer.textChanging(event);
@@ -180,20 +181,27 @@
 
 	void handleTextSet(TextChangedEvent event) {
 		int newCharCount = getCharCount();
-		this.lastCharCount = newCharCount;
+//		this.lastCharCount = newCharCount;
+		if( this.caretOffsetProperty.get() > newCharCount ) {
+			setSelection(new TextSelection(newCharCount, 0));
+		}
+		
+		if (getSkin() instanceof StyledTextSkin) {
+			((StyledTextSkin) getSkin()).recalculateItems();
+		}
 	}
 
 	void handleTextChanged(TextChangedEvent event) {
 		// int firstLine = getContent().getLineAtOffset(lastTextChangeStart);
-				
+		
 		if (getSkin() instanceof StyledTextSkin) {
 			((StyledTextSkin) getSkin()).recalculateItems();
 		}
 		
 		updateSelection(this.lastTextChangeStart, this.lastTextChangeReplaceCharCount, this.lastTextChangeNewCharCount);
 		
-		this.lastCharCount += this.lastTextChangeNewCharCount;
-		this.lastCharCount -= this.lastTextChangeReplaceCharCount;
+//		this.lastCharCount += this.lastTextChangeNewCharCount;
+//		this.lastCharCount -= this.lastTextChangeReplaceCharCount;
 	}
 	
 	void updateSelection(int startOffset, int replacedLength, int newLength) {
@@ -1390,6 +1398,7 @@
 	 */
 	public void setSelection(@NonNull TextSelection selection) {
 		if (selection.length == 0) {
+			System.err.println("SETTING OFFSET: " + selection.offset);
 			setCaretOffset(selection.offset);
 		} else {
 			// this.caretOffsetProperty.set(selection.offset+selection.length);

bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/behavior/StyledTextBehavior.java

diff --git a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/behavior/StyledTextBehavior.java b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/behavior/StyledTextBehavior.java
index 2de97ba..b8198de 100644
--- a/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/behavior/StyledTextBehavior.java
+++ b/bundles/runtime/org.eclipse.fx.ui.controls/src/org/eclipse/fx/ui/controls/styledtext/behavior/StyledTextBehavior.java
@@ -261,14 +261,13 @@
 					break;
 				}
 			}
-		case C:
-			if( getControl().getEditable() ) {
-				if( event.isShortcutDown() ) {
-					getControl().copy();
-					event.consume();
-					break;
-				}
+		case C: {
+			if( event.isShortcutDown() ) {
+				getControl().copy();
+				event.consume();
+				break;
 			}
+		}
 		default:
 			if( getControl().getEditable() ) {
 				String text = event.getText();