com.google.gerrit.client.admin.PaginatedProjectScreen.java Source code

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Here is the source code for com.google.gerrit.client.admin.PaginatedProjectScreen.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.admin;

import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.ui.Hyperlink;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gwt.http.client.URL;

abstract class PaginatedProjectScreen extends ProjectScreen {
    protected int pageSize;
    protected String match = "";
    protected int start;

    PaginatedProjectScreen(Project.NameKey toShow) {
        super(toShow);
        pageSize = Gerrit.getUserPreferences().changesPerPage();
    }

    protected void parseToken(String token) {
        for (String kvPair : token.split("[,;&/?]")) {
            String[] kv = kvPair.split("=", 2);
            if (kv.length != 2 || kv[0].isEmpty()) {
                continue;
            }

            if ("filter".equals(kv[0])) {
                match = URL.decodeQueryString(kv[1]);
            }

            if ("skip".equals(kv[0]) && URL.decodeQueryString(kv[1]).matches("^[\\d]+")) {
                start = Integer.parseInt(URL.decodeQueryString(kv[1]));
            }
        }
    }

    protected void parseToken() {
        parseToken(getToken());
    }

    protected String getTokenForScreen(String filter, int skip) {
        String token = getScreenToken();
        if (filter != null && !filter.isEmpty()) {
            token += "?filter=" + URL.encodeQueryString(filter);
        }
        if (skip > 0) {
            if (token.contains("?filter=")) {
                token += ",";
            } else {
                token += "?";
            }
            token += "skip=" + skip;
        }
        return token;
    }

    protected abstract String getScreenToken();

    protected void setupNavigationLink(Hyperlink link, String filter, int skip) {
        link.setTargetHistoryToken(getTokenForScreen(filter, skip));
        link.setVisible(true);
    }
}