Address Issue 352: Ctrl-Backspace in editable text fields

indra/llui/lltexteditor.cpp

@@ -1814,6 +1814,33 @@ void LLTextEditor::removeChar()
 	}
 }
 
+// Remove a word (set of characters up to next space/punctuation) from the text
+void LLTextEditor::removeWord(bool prev)
+{
+	const U32 pos(mCursorPos);
+	if (prev ? pos > 0 : static_cast<S32>(pos) < getLength())
+	{
+		U32 new_pos(prev ? prevWordPos(pos) : nextWordPos(pos));
+		if (new_pos == pos) // Other character we don't jump over
+			new_pos = prev ? prevWordPos(new_pos-1) : nextWordPos(new_pos+1);
+
+		const U32 diff(labs(pos - new_pos));
+		if (prev)
+		{
+			remove(new_pos, diff, false);
+			setCursorPos(new_pos);
+		}
+		else
+		{
+			remove(pos, diff, false);
+		}
+	}
+	else
+	{
+		reportBadKeystroke();
+	}
+}
+
 // Add a single character to the text
 S32 LLTextEditor::addChar(S32 pos, llwchar wc)
 {
@@ -2447,7 +2474,10 @@ BOOL LLTextEditor::handleSpecialKey(const KEY key, const MASK mask, BOOL* return
 		else
 		if( 0 < mCursorPos )
 		{
-			removeCharOrTab();
+			if (mask == MASK_CONTROL)
+				removeWord(true);
+			else
+				removeCharOrTab();
 		}
 		else
 		{
@@ -2455,6 +2485,12 @@ BOOL LLTextEditor::handleSpecialKey(const KEY key, const MASK mask, BOOL* return
 		}
 		break;
 
+	case KEY_DELETE:
+		if (getEnabled() && mask == MASK_CONTROL)
+		{
+			removeWord(false);
+		}
+		break;
 
 	case KEY_RETURN:
 		if (mask == MASK_NONE)