org.eclipse.mylyn.internal.gerrit.ui.operations.BranchProposalProvider.java Source code

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Here is the source code for org.eclipse.mylyn.internal.gerrit.ui.operations.BranchProposalProvider.java

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/*******************************************************************************
 * Copyright (c) 2015 Tasktop Technologies and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Tasktop Technologies - initial API and implementation
 *******************************************************************************/

package org.eclipse.mylyn.internal.gerrit.ui.operations;

import java.util.SortedSet;

import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.fieldassist.IContentProposal;
import org.eclipse.jface.fieldassist.IContentProposalProvider;

import com.google.common.collect.Sets;

public class BranchProposalProvider implements IContentProposalProvider {

    private final SortedSet<String> proposals;

    public BranchProposalProvider(SortedSet<String> proposals) {
        this.proposals = Sets.newTreeSet(proposals);
    }

    @Override
    public IContentProposal[] getProposals(String contents, int position) {
        Assert.isLegal(contents != null);
        Assert.isLegal(position >= 0);

        SortedSet<BranchContentProposal> branches = Sets.<BranchContentProposal>newTreeSet();
        String searchText = contents.toLowerCase();
        addMatchingProposals(branches, searchText);

        return branches.toArray(new BranchContentProposal[0]);
    }

    private void addMatchingProposals(SortedSet<BranchContentProposal> branches, String searchText) {
        for (String branchProposal : proposals) {
            if (branchProposal.toLowerCase().contains(searchText)) {
                branches.add(new BranchContentProposal(branchProposal));
            }
        }
    }

}