termux-app/terminal-view/src/main/java/com/termux/view/TerminalViewClient.java

package com.termux.view;

import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.ScaleGestureDetector;

import com.termux.terminal.TerminalSession;

/**
 * Input and scale listener which may be set on a {@link TerminalView} through
 * {@link TerminalView#setOnKeyListener(TerminalViewClient)}.
 * <p/>
 */
public interface TerminalViewClient {

    /**
     * Callback function on scale events according to {@link ScaleGestureDetector#getScaleFactor()}.
     */
    float onScale(float scale);

    /**
     * On a single tap on the terminal if terminal mouse reporting not enabled.
     */
    void onSingleTapUp(MotionEvent e);

    boolean shouldBackButtonBeMappedToEscape();

    boolean shouldEnforeCharBasedInput();

    boolean shouldUseCtrlSpaceWorkaround();

    void copyModeChanged(boolean copyMode);

    boolean onKeyDown(int keyCode, KeyEvent e, TerminalSession session);

    boolean onKeyUp(int keyCode, KeyEvent e);

    boolean readControlKey();

    boolean readAltKey();

    boolean onCodePoint(int codePoint, boolean ctrlDown, TerminalSession session);

    boolean onLongPress(MotionEvent event);

}