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// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you 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.thoughtworks.selenium.webdriven.commands;

import com.thoughtworks.selenium.webdriven.ElementFinder;
import com.thoughtworks.selenium.webdriven.JavascriptLibrary;
import com.thoughtworks.selenium.webdriven.SeleneseCommand;

import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.WebElement;

public class GetText extends SeleneseCommand {
  private final JavascriptLibrary library;
  private final ElementFinder finder;

  public GetText(JavascriptLibrary library, ElementFinder finder) {
    this.library = library;
    this.finder = finder;
  }

  @Override
  protected String handleSeleneseCommand(WebDriver driver, String locator, String ignored) {
    String getText = library.getSeleniumScript("getText.js");

    try {
      return (String) ((JavascriptExecutor) driver).executeScript(
          "return (" + getText + ")(arguments[0]);", locator);
    } catch (WebDriverException e) {
      // TODO(simon): remove fall back for IE driver
      WebElement element = finder.findElement(driver, locator);
      return element.getText();
    }
  }
}