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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.chromoting;
import android.view.MotionEvent;
/**
* This interface defines the methods used to customize input handling for
* a particular strategy. The implementing class is responsible for sending
* remote input events and defining implementation specific behavior.
*/
public interface InputStrategyInterface {
/**
* Called when a user tap has been detected.
*
* @param button The button value for the tap event.
* @return A boolean representing whether the event was handled.
*/
boolean onTap(int button);
/**
* Called when the user has put one or more fingers down on the screen for a period of time.
*
* @param button The button value for the tap event.
* @return A boolean representing whether the event was handled.
*/
boolean onPressAndHold(int button);
/**
* Called when a MotionEvent is received. This method allows the input strategy to store or
* react to specific MotionEvents as needed.
*
* @param event The original event for the current touch motion.
*/
void onMotionEvent(MotionEvent event);
/**
* Called when the user is attempting to scroll/pan the remote UI.
*
* @param distanceX The distance moved along the x-axis.
* @param distanceY The distance moved along the y-axis.
*/
void onScroll(float distanceX, float distanceY);
/**
* Called to update the remote cursor position.
*
* @param x The new x coordinate of the cursor.
* @param y The new y coordinate of the cursor.
*/
void injectCursorMoveEvent(int x, int y);
/**
* Returns the feedback animation type to use for a short press.
*
* @return The feedback to display when a short press occurs.
*/
DesktopView.InputFeedbackType getShortPressFeedbackType();
/**
* Returns the feedback animation type to use for a long press.
*
* @return The feedback to display when a long press occurs.
*/
DesktopView.InputFeedbackType getLongPressFeedbackType();
/**
* Indicates whether this input mode is an indirect input mode. Indirect input modes manipulate
* the cursor in a detached fashion (such as a trackpad) and direct input modes will update the
* cursor/screen position to match the location of the touch point.
*
* @return A boolean representing whether this input mode is indirect (true) or direct (false).
*/
boolean isIndirectInputMode();
}
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