97 lines
2.1 KiB
Java
97 lines
2.1 KiB
Java
/*
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* Copyright 2013 serso aka se.solovyev
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Contact details
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*
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* Email: se.solovyev@gmail.com
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* Site: http://se.solovyev.org
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*/
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package org.solovyev.android.wizard;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import java.util.List;
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public final class ListWizardFlow implements WizardFlow {
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@Nonnull
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private final List<? extends WizardStep> steps;
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public ListWizardFlow(@Nonnull List<? extends WizardStep> steps) {
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this.steps = steps;
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}
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@Nullable
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@Override
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public WizardStep getStepByName(@Nonnull final String name) {
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for (WizardStep step : steps) {
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if (step.getName().equals(name)) {
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return step;
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}
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}
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return null;
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}
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@Nullable
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@Override
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public WizardStep getNextStep(@Nonnull WizardStep step) {
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final int i = steps.indexOf(step);
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if (i >= 0 && i + 1 < steps.size()) {
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return steps.get(i + 1);
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} else {
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return null;
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}
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}
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@Nullable
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@Override
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public WizardStep getPrevStep(@Nonnull WizardStep step) {
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final int i = steps.indexOf(step);
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if (i >= 1) {
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return steps.get(i - 1);
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} else {
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return null;
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}
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}
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@Nonnull
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@Override
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public WizardStep getFirstStep() {
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return steps.get(0);
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}
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@Nonnull
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public WizardStep getStepAt(int position) {
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return steps.get(position);
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}
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public int getPositionFor(@Nonnull WizardStep step) {
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for (int i = 0; i < steps.size(); i++) {
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if (steps.get(i).equals(step)) {
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return i;
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}
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}
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return -1;
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}
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public int getCount() {
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return steps.size();
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}
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}
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