com.googlesource.gerrit.plugins.cookbook.client.ChangeScreenPreferencePanel.java Source code

Introduction

Here is the source code for com.googlesource.gerrit.plugins.cookbook.client.ChangeScreenPreferencePanel.java

Source

// 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.googlesource.gerrit.plugins.cookbook.client;

import com.google.gerrit.client.info.GeneralPreferences;
import com.google.gerrit.plugin.client.Plugin;
import com.google.gerrit.plugin.client.extension.Panel;
import com.google.gerrit.plugin.client.rpc.RestApi;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.VerticalPanel;

import java.util.Map;

public class ChangeScreenPreferencePanel extends VerticalPanel {
    private static final String DEFAULT = "DEFAULT";
    private static final String COOKBOOK = "COOKBOOK";
    private static final String OTHER = "OTHER";
    private static final String DEFAULT_URL_MATCH = "/c/(.*)";
    private static final String COOKBOOK_URL_TOKEN = "/x/" + Plugin.get().getName() + "/c/$1";

    static class Factory implements Panel.EntryPoint {
        @Override
        public void onLoad(Panel panel) {
            panel.setWidget(new ChangeScreenPreferencePanel());
        }
    }

    private Label savedLabel;
    private Timer hideTimer;

    ChangeScreenPreferencePanel() {
        new RestApi("accounts").id("self").view("preferences").get(new AsyncCallback<GeneralPreferences>() {
            @Override
            public void onSuccess(GeneralPreferences result) {
                display(result);
            }

            @Override
            public void onFailure(Throwable caught) {
                // never invoked
            }
        });
    }

    private void display(final GeneralPreferences info) {
        Label heading = new Label(Plugin.get().getName() + " plugin");
        heading.setStyleName("smallHeading");
        add(heading);
        HorizontalPanel p = new HorizontalPanel();
        add(p);

        Label label = new Label("Change Screen:");
        p.add(label);
        label.getElement().getStyle().setMarginRight(5, Unit.PX);
        label.getElement().getStyle().setMarginTop(2, Unit.PX);
        final ListBox box = new ListBox();
        p.add(box);
        savedLabel = new Label("Saved");
        savedLabel.getElement().getStyle().setMarginLeft(5, Unit.PX);
        savedLabel.getElement().getStyle().setMarginTop(2, Unit.PX);
        savedLabel.setVisible(false);
        p.add(savedLabel);

        box.addItem(DEFAULT, DEFAULT);
        box.addItem(COOKBOOK, COOKBOOK);

        String selected = DEFAULT;
        if (info.urlAliases().containsKey(DEFAULT_URL_MATCH)) {
            String token = info.urlAliases().get(DEFAULT_URL_MATCH);
            if (token.equals(COOKBOOK_URL_TOKEN)) {
                selected = COOKBOOK;
            } else if (!token.equals(DEFAULT_URL_MATCH)) {
                box.addItem(OTHER, OTHER);
                selected = OTHER;
            }
        }

        for (int i = 0; i < box.getItemCount(); i++) {
            if (selected.equals(box.getValue(i))) {
                box.setSelectedIndex(i);
                break;
            }
        }

        box.addChangeHandler(new ChangeHandler() {
            @Override
            public void onChange(ChangeEvent event) {
                savedLabel.setVisible(false);
                if (box.getSelectedValue().equals(OTHER)) {
                    return;
                }

                Map<String, String> urlAliases = info.urlAliases();
                if (box.getSelectedValue().equals(COOKBOOK)) {
                    urlAliases.put(DEFAULT_URL_MATCH, COOKBOOK_URL_TOKEN);
                } else {
                    urlAliases.remove(DEFAULT_URL_MATCH);
                }
                info.setUrlAliases(urlAliases);

                new RestApi("accounts").id("self").view("preferences").put(info,
                        new AsyncCallback<GeneralPreferences>() {
                            @Override
                            public void onSuccess(GeneralPreferences result) {
                                Plugin.get().refreshUserPreferences();
                                showSavedStatus();
                            }

                            @Override
                            public void onFailure(Throwable caught) {
                                // never invoked
                            }
                        });
            }
        });
    }

    private void showSavedStatus() {
        if (hideTimer != null) {
            hideTimer.cancel();
            hideTimer = null;
        }
        savedLabel.setVisible(true);
        hideTimer = new Timer() {
            @Override
            public void run() {
                savedLabel.setVisible(false);
                hideTimer = null;
            }
        };
        hideTimer.schedule(1000);
    }
}