/*
 * Copyright 2000-2016 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.window;

import static com.vaadin.tests.components.window.BackspaceKeyWithModalOpened.BTN_NEXT_ID;
import static com.vaadin.tests.components.window.BackspaceKeyWithModalOpened.BTN_OPEN_MODAL_ID;
import static org.junit.Assert.assertEquals;
import static org.openqa.selenium.Keys.BACK_SPACE;
import static org.openqa.selenium.Keys.TAB;

import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.interactions.Actions;

import com.vaadin.testbench.By;
import com.vaadin.testbench.elements.ButtonElement;
import com.vaadin.testbench.elements.TextFieldElement;
import com.vaadin.tests.tb3.MultiBrowserTest;

public class BackspaceKeyWithModalOpenedTest extends MultiBrowserTest {

    /**
     * Tests that backspace in textfield does work
     */
    @Test
    public void testWithFocusOnInput() throws Exception {

        TextFieldElement textField = getTextField();

        // Try to delete characters in a text field.
        textField.sendKeys("textt");
        textField.sendKeys(BACK_SPACE);
        assertEquals("text", textField.getValue());
        checkButtonsCount();
    }

    /**
     * Tests that backspace action outside textfield is prevented
     */
    @Test
    public void testWithFocusOnModal() throws Exception {
        // Try to send back actions to the browser.
        new Actions(getDriver()).sendKeys(BACK_SPACE).perform();

        checkButtonsCount();
    }

    /**
     * Tests that backspace action in the bottom component is prevented
     */
    @Test
    public void testWithFocusOnBottom() throws Exception {
        TextFieldElement textField = getTextField();

        // tab in last field set focus on bottom component
        textField.sendKeys(TAB);

        // Try to send back actions to the browser.
        new Actions(getDriver()).sendKeys(BACK_SPACE).perform();

        checkButtonsCount();
    }

    private TextFieldElement getTextField() {
        return $(TextFieldElement.class).first();
    }

    @Before
    public void testSetup() {
        openTestURL();
        WebElement nextButton = driver.findElement(By.id(BTN_NEXT_ID));
        nextButton.click();

        WebElement openModalButton = driver
                .findElement(By.id(BTN_OPEN_MODAL_ID));
        openModalButton.click();
    }

    /**
     * If there was a back navigation due to the backspace the next button
     * would've been added again
     */
    private void checkButtonsCount() {
        assertEquals(2, $(ButtonElement.class).all().size());
    }
}