com.google.gerrit.client.ui.HighlightSuggestion.java Source code

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Here is the source code for com.google.gerrit.client.ui.HighlightSuggestion.java

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// Copyright (C) 2015 The Android Open Source Project
//
// 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.gerrit.client.ui;

import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;

/** A {@code Suggestion} with highlights. */
public class HighlightSuggestion implements Suggestion {

    private final String keyword;
    private final String value;

    public HighlightSuggestion(String keyword, String value) {
        this.keyword = keyword;
        this.value = value;
    }

    @Override
    public String getDisplayString() {
        int start = 0;
        int keyLen = keyword.length();
        SafeHtmlBuilder builder = new SafeHtmlBuilder();
        for (;;) {
            int index = value.indexOf(keyword, start);
            if (index == -1) {
                builder.appendEscaped(value.substring(start));
                break;
            }
            builder.appendEscaped(value.substring(start, index));
            builder.appendHtmlConstant("<strong>");
            start = index + keyLen;
            builder.appendEscaped(value.substring(index, start));
            builder.appendHtmlConstant("</strong>");
        }
        return builder.toSafeHtml().asString();
    }

    @Override
    public String getReplacementString() {
        return value;
    }
}