| /* |
| * 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.scroll; |
| |
| |
| import io.appium.droiddriver.DroidDriver; |
| import io.appium.droiddriver.UiElement; |
| import io.appium.droiddriver.finders.Finder; |
| import io.appium.droiddriver.scroll.Direction.DirectionConverter; |
| import io.appium.droiddriver.scroll.Direction.PhysicalDirection; |
| |
| /** |
| * An abstract base class for implementing the <a |
| * href="http://en.wikipedia.org/wiki/Decorator_pattern">decorator pattern</a>, |
| * forwarding calls to all methods of {@link ScrollStepStrategy} to delegate. |
| */ |
| public abstract class ForwardingScrollStepStrategy implements ScrollStepStrategy { |
| |
| protected ForwardingScrollStepStrategy() {} |
| |
| /** |
| * Returns the backing delegate instance that methods are forwarded to. |
| */ |
| protected abstract ScrollStepStrategy delegate(); |
| |
| public boolean scroll(DroidDriver driver, Finder containerFinder, PhysicalDirection direction) { |
| return delegate().scroll(driver, containerFinder, direction); |
| } |
| |
| @Override |
| public final DirectionConverter getDirectionConverter() { |
| return delegate().getDirectionConverter(); |
| } |
| |
| @Override |
| public void beginScrolling(DroidDriver driver, Finder containerFinder, Finder itemFinder, |
| PhysicalDirection direction) { |
| delegate().beginScrolling(driver, containerFinder, itemFinder, direction); |
| } |
| |
| @Override |
| public void endScrolling(DroidDriver driver, Finder containerFinder, Finder itemFinder, |
| PhysicalDirection direction) { |
| delegate().endScrolling(driver, containerFinder, itemFinder, direction); |
| } |
| |
| @Override |
| public void doScroll(UiElement container, PhysicalDirection direction) { |
| delegate().doScroll(container, direction); |
| } |
| } |