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path: root/src/io/appium/droiddriver/actions/TextAction.java
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/*
 * Copyright (C) 2013 DroidDriver committers
 *
 * 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.appium.droiddriver.actions;

import android.annotation.SuppressLint;
import android.os.Build;
import android.os.SystemClock;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.ViewConfiguration;
import io.appium.droiddriver.UiElement;
import io.appium.droiddriver.exceptions.ActionException;
import io.appium.droiddriver.util.Preconditions;
import io.appium.droiddriver.util.Strings;

/** An action to type text. */
public class TextAction extends KeyAction {

  @SuppressLint("InlinedApi")
  @SuppressWarnings("deprecation")
  private static final KeyCharacterMap KEY_CHAR_MAP =
      Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB
          ? KeyCharacterMap.load(KeyCharacterMap.BUILT_IN_KEYBOARD)
          : KeyCharacterMap.load(KeyCharacterMap.VIRTUAL_KEYBOARD);
  // KeyRepeatDelay is a good heuristic for KeyInjectionDelay.
  private static long keyInjectionDelayMillis = ViewConfiguration.getKeyRepeatDelay();
  private final String text;

  /** Defaults timeoutMillis to 100. */
  public TextAction(String text) {
    this(text, 100L, false);
  }

  public TextAction(String text, long timeoutMillis, boolean checkFocused) {
    super(timeoutMillis, checkFocused);
    this.text = Preconditions.checkNotNull(text);
  }

  public static long getKeyInjectionDelayMillis() {
    return keyInjectionDelayMillis;
  }

  public static void setKeyInjectionDelayMillis(long keyInjectionDelayMillis) {
    TextAction.keyInjectionDelayMillis = keyInjectionDelayMillis;
  }

  @Override
  public boolean perform(InputInjector injector, UiElement element) {
    maybeCheckFocused(element);

    // TODO: recycle events?
    KeyEvent[] events = KEY_CHAR_MAP.getEvents(text.toCharArray());

    if (events != null) {
      for (KeyEvent event : events) {
        // We have to change the time of an event before injecting it because
        // all KeyEvents returned by KeyCharacterMap.getEvents() have the same
        // time stamp and the system rejects too old events. Hence, it is
        // possible for an event to become stale before it is injected if it
        // takes too long to inject the preceding ones.
        KeyEvent modifiedEvent = KeyEvent.changeTimeRepeat(event, SystemClock.uptimeMillis(), 0);
        if (!injector.injectInputEvent(modifiedEvent)) {
          throw new ActionException("Failed to inject " + event);
        }
        SystemClock.sleep(keyInjectionDelayMillis);
      }
    } else {
      throw new ActionException("The given text is not supported: " + text);
    }
    return true;
  }

  @Override
  public String toString() {
    return Strings.toStringHelper(this).addValue(text).toString();
  }
}