| // Copyright (C) 2008 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.changes; |
| |
| import com.google.gerrit.client.data.ChangeInfo; |
| import com.google.gerrit.client.data.SingleListChangeInfo; |
| import com.google.gerrit.client.ui.Screen; |
| import com.google.gwt.user.client.ui.HorizontalPanel; |
| import com.google.gwt.user.client.ui.Hyperlink; |
| |
| import java.util.List; |
| |
| |
| public abstract class AllSingleListScreen extends Screen { |
| protected static final String MIN_SORTKEY = ""; |
| protected static final String MAX_SORTKEY = "z"; |
| |
| protected static final int pageSize = 25; |
| private ChangeTable table; |
| private ChangeTable.Section section; |
| protected Hyperlink prev; |
| protected Hyperlink next; |
| protected List<ChangeInfo> changes; |
| |
| protected final String anchorPrefix; |
| protected boolean useLoadPrev; |
| protected String pos; |
| |
| public AllSingleListScreen(final String title, final String anchorToken, |
| final String positionToken) { |
| super(title); |
| anchorPrefix = anchorToken; |
| useLoadPrev = positionToken.startsWith("p,"); |
| pos = positionToken.substring(2); |
| } |
| |
| @Override |
| public Object getScreenCacheToken() { |
| return anchorPrefix; |
| } |
| |
| @Override |
| public Screen recycleThis(final Screen newScreen) { |
| final AllSingleListScreen o = (AllSingleListScreen) newScreen; |
| useLoadPrev = o.useLoadPrev; |
| pos = o.pos; |
| return this; |
| } |
| |
| @Override |
| public void onLoad() { |
| if (table == null) { |
| table = new ChangeTable(); |
| section = new ChangeTable.Section(); |
| |
| table.addSection(section); |
| table.setSavePointerId(anchorPrefix); |
| add(table); |
| |
| prev = new Hyperlink(Util.C.pagedChangeListPrev(), true, ""); |
| prev.setVisible(false); |
| |
| next = new Hyperlink(Util.C.pagedChangeListNext(), true, ""); |
| next.setVisible(false); |
| |
| final HorizontalPanel buttons = new HorizontalPanel(); |
| buttons.setStyleName("gerrit-ChangeTable-PrevNextLinks"); |
| buttons.add(prev); |
| buttons.add(next); |
| add(buttons); |
| } |
| |
| super.onLoad(); |
| |
| if (useLoadPrev) { |
| loadPrev(); |
| } else { |
| loadNext(); |
| } |
| } |
| |
| protected abstract void loadPrev(); |
| |
| protected abstract void loadNext(); |
| |
| protected void display(final SingleListChangeInfo result) { |
| changes = result.getChanges(); |
| |
| if (!changes.isEmpty()) { |
| final ChangeInfo f = changes.get(0); |
| final ChangeInfo l = changes.get(changes.size() - 1); |
| |
| prev.setTargetHistoryToken(anchorPrefix + ",p," + f.getSortKey()); |
| next.setTargetHistoryToken(anchorPrefix + ",n," + l.getSortKey()); |
| |
| if (useLoadPrev) { |
| prev.setVisible(!result.isAtEnd()); |
| next.setVisible(!MIN_SORTKEY.equals(pos)); |
| } else { |
| prev.setVisible(!MAX_SORTKEY.equals(pos)); |
| next.setVisible(!result.isAtEnd()); |
| } |
| } |
| |
| table.setAccountInfoCache(result.getAccounts()); |
| section.display(result.getChanges()); |
| table.finishDisplay(true); |
| } |
| } |