/*
* Copyright 2007 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.user.client.ui;
/**
* Tests a {@link TextArea}.
*/
public class TextAreaTest extends TextBoxBaseTestBase {
/**
* Most browsers strip \r from newlines, but IE adds them in. IE's TextRange
* also truncates the \r\n from the end of the selected range. This test is
* designed to work on all browsers and verifies that the newlines are
* accounted for in all browsers.
*/
public void testNewline() {
testNewline("Hello World\r\n\r\n\r\n\r\n\r\n", 15, 6, 15);
testNewline("Hello\r\n\r\n\r\n\r\nWorld, My name is John.", 7, 3, 15);
testNewline("\r\n\r\n\r\n\r\n\r\nHello World", 4, 4, 13);
testNewline("\r\n\r\n\r\n\r\n\r\n", 2, 2, 4);
}
@Override
protected TextBoxBase createTextBoxBase() {
return new TextArea();
}
/**
* Test the handling of newline characters.
*
* @param text the text to test
* @param cursorPos the cursor position within the newlines
* @param startRange the start of a range that includes newlines
* @param endRange the end of a range that includes newlines
*/
private void testNewline(String text, int cursorPos, int startRange,
int endRange) {
TextBoxBase box = createTextBoxBase();
RootPanel.get().add(box);
// Browsers will manipulate the text when attached to the DOM, so we need
// to get the new value. Safari 4 delays the manipulation if the text was
// set before attaching the TextArea to the DOM, so we attach first and set
// the text second.
box.setText(text);
text = box.getText();
// Position the cursor in the newlines
box.setCursorPos(cursorPos);
assertEquals(cursorPos, box.getCursorPos());
// Select newlines
box.setSelectionRange(startRange, endRange - startRange);
assertEquals(text.substring(startRange, endRange), box.getSelectedText());
RootPanel.get().remove(box);
}
}