/*
* Copyright 2012 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;
import com.google.gwt.regexp.shared.MatchResult;
import com.google.gwt.regexp.shared.RegExp;
import com.google.gwt.user.client.Window.Navigator;
import junit.framework.Assert;
/**
* Calculates the sizes for Window extras such as border, menu, tool bar, and stores the original
* sizes to restore at the end of test.
*/
public final class ResizeHelper {
private static int extraWidth;
private static int extraHeight;
static {
// FF4 on win can start in 'almost' fullscreen when the window title bar
// is hidden but accounted incorrectly, so, move the window and resize to
// smaller size first, to take it out of 'full screen mode'.
Window.moveTo(10, 10);
Window.resizeTo(700, 500);
extraWidth = 700 - Window.getClientWidth();
extraHeight = 500 - Window.getClientHeight();
}
public static void resizeBy(int width, int height) {
Window.resizeBy(width, height);
}
public static void resizeTo(int width, int height) {
Window.resizeTo(width, height);
}
public static void assertSize(int width, int height) {
Assert.assertEquals(width, Window.getClientWidth() + extraWidth);
Assert.assertEquals(height, Window.getClientHeight() + extraHeight);
}
public static boolean isResizeSupported() {
String userAgent = Navigator.getUserAgent();
if (userAgent.contains("Chrome")) {
return false; // All versions of Chrome are upsupported
}
if (userAgent.contains("Firefox")) {
RegExp versionRegExp = RegExp.compile("Firefox[\\/\\s](\\d+)\\.\\d+", "ig");
MatchResult result = versionRegExp.exec(userAgent);
if (result != null) {
int version = Integer.parseInt(result.getGroup(1));
return version < 7; // Resize is unsupported for Firefox 7 and newer.
}
}
return true;
}
}