io.github.seleniumquery.by.firstgen.css.pseudoclasses.PresentPseudoClass.java Source code

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Here is the source code for io.github.seleniumquery.by.firstgen.css.pseudoclasses.PresentPseudoClass.java

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/*
 * Copyright (c) 2015 seleniumQuery authors
 *
 * 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 io.github.seleniumquery.by.firstgen.css.pseudoclasses;

import io.github.seleniumquery.by.firstgen.xpath.component.ConditionSimpleComponent;
import org.openqa.selenium.StaleElementReferenceException;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;

/**
 * :present
 *
 * @author acdcjunior
 * @since 0.9.0
 */
public class PresentPseudoClass implements PseudoClass<ConditionSimpleComponent> {

    private static final String PRESENT_PSEUDO_CLASS_NO_COLON = "present";

    @Override
    public boolean isApplicable(String pseudoClassValue) {
        return PRESENT_PSEUDO_CLASS_NO_COLON.equals(pseudoClassValue);
    }

    @Override
    public boolean isPseudoClass(WebDriver driver, WebElement element, PseudoClassSelector pseudoClassSelector) {
        return isPresent(element);
    }

    public boolean isPresent(WebElement webElement) {
        try {
            // calling ANY method forces a staleness check
            webElement.isEnabled();
            // passed staleness check, thus present
            return true;
        } catch (StaleElementReferenceException expected) {
            // failed staleness check, so not present
            return false;
        }
    }

    @Override
    public ConditionSimpleComponent pseudoClassToXPath(PseudoClassSelector pseudoClassSelector) {
        return new ConditionSimpleComponent();
    }

}