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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 com.google.android.droiddriver.helpers;
import com.google.android.droiddriver.DroidDriver;
import com.google.android.droiddriver.UiElement;
import com.google.android.droiddriver.exceptions.ElementNotFoundException;
import com.google.android.droiddriver.finders.Finder;
import com.google.android.droiddriver.scroll.Direction.PhysicalDirection;
import com.google.android.droiddriver.scroll.Scroller;
/**
* Helper for Scroller.
*/
public class ScrollerHelper {
private final DroidDriver driver;
private final Finder containerFinder;
private final Scroller scroller;
public ScrollerHelper(Scroller scroller, DroidDriver driver, Finder containerFinder) {
this.scroller = scroller;
this.driver = driver;
this.containerFinder = containerFinder;
}
/**
* Scrolls {@code containerFinder} in both directions if necessary to find
* {@code itemFinder}, which is a descendant of {@code containerFinder}.
*
* @param itemFinder Finder for the desired item; relative to
* {@code containerFinder}
* @return the UiElement matching {@code itemFinder}
* @throws ElementNotFoundException If no match is found
*/
public UiElement scrollTo(Finder itemFinder) {
return scroller.scrollTo(driver, containerFinder, itemFinder);
}
/**
* Scrolls {@code containerFinder} in {@code direction} if necessary to find
* {@code itemFinder}, which is a descendant of {@code containerFinder}.
*
* @param itemFinder Finder for the desired item; relative to
* {@code containerFinder}
* @param direction specifies where the view port will move instead of the finger
* @return the UiElement matching {@code itemFinder}
* @throws ElementNotFoundException If no match is found
*/
public UiElement scrollTo(Finder itemFinder, PhysicalDirection direction) {
return scroller.scrollTo(driver, containerFinder, itemFinder, direction);
}
/**
* Scrolls to {@code itemFinder} and returns true, otherwise returns false.
*
* @param itemFinder Finder for the desired item
* @return true if successful, otherwise false
*/
public boolean canScrollTo(Finder itemFinder) {
try {
scrollTo(itemFinder);
return true;
} catch (ElementNotFoundException e) {
return false;
}
}
}
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