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/*
* Copyright 2000-2014 Vaadin Ltd.
*
* 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.vaadin.tests.components.table;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import java.util.Arrays;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;
import com.vaadin.testbench.By;
import com.vaadin.testbench.commands.TestBenchCommandExecutor;
import com.vaadin.tests.tb3.MultiBrowserTest;
public class UnnecessaryScrollbarWhenZoomingTest extends MultiBrowserTest {
private ZoomLevelSetter zoomSetter;
private int zoomOutIterations = 3;
private int zoomInIterations = 3;
@Before
public void init() {
testBench().resizeViewPortTo(995, 400);
DesiredCapabilities capabilities = getDesiredCapabilities();
if (BrowserUtil.isChrome(capabilities)
|| BrowserUtil.isPhantomJS(capabilities)) {
zoomSetter = new ChromeZoomLevelSetter(driver);
} else {
zoomSetter = new NonChromeZoomLevelSetter(driver);
}
zoomSetter.resetZoom();
openTestURL();
// IE sometimes has trouble waiting long enough.
new WebDriverWait(getDriver(), 30).until(ExpectedConditions
.presenceOfElementLocated(By
.cssSelector(".v-table-body-wrapper")));
}
@Test
public void testInitial() {
testExtraScrollbarsNotShown();
}
@Test
public void testZoomingIn() {
for (int i = 0; i < zoomInIterations; i++) {
zoomSetter.increaseZoom();
testExtraScrollbarsNotShown();
}
}
@Test
public void testZoomingOut() throws InterruptedException {
for (int i = 0; i < zoomOutIterations; i++) {
zoomSetter.decreaseZoom();
testExtraScrollbarsNotShown();
}
}
@After
public void resetZoomLevel() {
zoomSetter.resetZoom();
}
private void testExtraScrollbarsNotShown() {
// wait a bit for the layout
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
Assert.fail();
}
WebElement element = findElement(By
.cssSelector(".v-table-body-wrapper"));
assertNotNull("There must be a table", element);
String overflow = element.getCssValue("overflow");
// As long as the overflow is hidden, there will not be scroll bars.
if (!"hidden".equals(overflow)) {
// compare scroll width to offset width. True if scrolling.
String detectHorizontalScroll = "return arguments[0].scrollWidth > arguments[0].clientWidth";
Boolean horizontal = (Boolean) ((TestBenchCommandExecutor) getDriver())
.executeScript(detectHorizontalScroll, element);
assertEquals("there must be no horizontal scrollbar", false,
horizontal);
String detectVerticalScroll = "return arguments[0].scrollHeight > arguments[0].clientHeight";
Boolean vertical = (Boolean) ((TestBenchCommandExecutor) getDriver())
.executeScript(detectVerticalScroll, element);
assertEquals("there must be no vertical scrollbar", false, vertical);
}
}
interface ZoomLevelSetter {
public void increaseZoom();
public void decreaseZoom();
public void resetZoom();
}
/*
* A class for setting the zoom levels by sending keys such as ctrl and +.
*/
class NonChromeZoomLevelSetter implements ZoomLevelSetter {
private WebDriver driver;
public NonChromeZoomLevelSetter(WebDriver driver) {
this.driver = driver;
}
@Override
public void increaseZoom() {
getElement().sendKeys(Keys.chord(Keys.CONTROL, Keys.ADD));
}
@Override
public void decreaseZoom() {
getElement().sendKeys(Keys.chord(Keys.CONTROL, Keys.SUBTRACT));
}
@Override
public void resetZoom() {
getElement().sendKeys(Keys.chord(Keys.CONTROL, "0"));
}
private WebElement getElement() {
return driver.findElement(By.tagName("html"));
}
}
/*
* A class for setting the zoom levels using JavaScript. This setter is used
* for browsers for which the method of sending the keys ctrl and + does not
* work.
*/
class ChromeZoomLevelSetter implements ZoomLevelSetter {
private JavascriptExecutor js;
private int currentZoomIndex = 2;
private int[] zoomLevels = { 70, 80, 90, 100, 110, 120, 130 };
public ChromeZoomLevelSetter(WebDriver driver) {
js = (JavascriptExecutor) driver;
}
@Override
public void increaseZoom() {
currentZoomIndex++;
if (currentZoomIndex >= zoomLevels.length) {
currentZoomIndex = zoomLevels.length - 1;
}
js.executeScript("document.body.style.zoom='"
+ zoomLevels[currentZoomIndex] + "%'");
}
@Override
public void decreaseZoom() {
currentZoomIndex--;
if (currentZoomIndex < 0) {
currentZoomIndex = 0;
}
js.executeScript("document.body.style.zoom='"
+ zoomLevels[currentZoomIndex] + "%'");
}
@Override
public void resetZoom() {
js.executeScript("document.body.style.zoom='100%'");
currentZoomIndex = Arrays.binarySearch(zoomLevels, 100);
}
}
}
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