src/main/java/com/google/gerrit/client/changes/ChangeScreen.java - gerrit - Git at Google

 // 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.FormatUtil;
 import com.google.gerrit.client.data.AccountInfoCache;
 import com.google.gerrit.client.data.ChangeDetail;
 import com.google.gerrit.client.data.ChangeInfo;
 import com.google.gerrit.client.data.GitwebLink;
 import com.google.gerrit.client.reviewdb.Change;
 import com.google.gerrit.client.reviewdb.ChangeMessage;
 import com.google.gerrit.client.reviewdb.PatchSet;
 import com.google.gerrit.client.rpc.Common;
 import com.google.gerrit.client.rpc.ScreenLoadCallback;
 import com.google.gerrit.client.ui.ComplexDisclosurePanel;
 import com.google.gerrit.client.ui.ExpandAllCommand;
 import com.google.gerrit.client.ui.LinkMenuBar;
 import com.google.gerrit.client.ui.RefreshListener;
 import com.google.gerrit.client.ui.Screen;
 import com.google.gwt.i18n.client.LocaleInfo;
 import com.google.gwt.user.client.ui.Anchor;
 import com.google.gwt.user.client.ui.DisclosurePanel;
 import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.InlineLabel;
 import com.google.gwt.user.client.ui.Panel;
 import com.google.gwt.user.client.ui.Widget;

 import java.sql.Timestamp;
 import java.util.List;


 public class ChangeScreen extends Screen {
   private Change.Id changeId;
   private ChangeInfo changeInfo;
   private boolean refreshOnSignIn;

   private ChangeDescriptionBlock descriptionBlock;
   private DisclosurePanel dependenciesPanel;
   private ChangeTable dependencies;
   private ChangeTable.Section dependsOn;
   private ChangeTable.Section neededBy;

   private DisclosurePanel approvalsPanel;
   private ApprovalTable approvals;

   private FlowPanel patchSetPanels;

   private DisclosurePanel messagesPanel;
   private Panel messagesContent;

   public ChangeScreen(final Change.Id toShow) {
     changeId = toShow;
   }

   public ChangeScreen(final ChangeInfo c) {
     this(c.getId());
     changeInfo = c;
   }

   @Override
   public Object getScreenCacheToken() {
     return getClass();
   }

   @Override
   public Screen recycleThis(final Screen newScreen) {
     final ChangeScreen s = (ChangeScreen) newScreen;
     changeId = s.changeId;
     changeInfo = s.changeInfo;
     return this;
   }

   @Override
   public void onSignIn() {
     if (refreshOnSignIn) {
       refresh();
     }
   }

   @Override
   public void onSignOut() {
   }

   @Override
   public void onLoad() {
     if (descriptionBlock == null) {
       initUI();
     }

     displayTitle(changeInfo != null ? changeInfo.getSubject() : null);
     super.onLoad();

     refresh();
   }

   public void refresh() {
     Util.DETAIL_SVC.changeDetail(changeId,
         new ScreenLoadCallback<ChangeDetail>() {
           public void onSuccess(final ChangeDetail r) {
             // TODO Actually we want to cancel the RPC if detached.
             if (isAttached()) {
               display(r);
             }
           }
         });
   }

   private void initUI() {
     addStyleName("gerrit-ChangeScreen");

     descriptionBlock = new ChangeDescriptionBlock();
     add(descriptionBlock);

     dependencies = new ChangeTable();
     dependsOn = new ChangeTable.Section(Util.C.changeScreenDependsOn());
     neededBy = new ChangeTable.Section(Util.C.changeScreenNeededBy());
     dependencies.addSection(dependsOn);
     dependencies.addSection(neededBy);

     dependenciesPanel = new DisclosurePanel(Util.C.changeScreenDependencies());
     dependenciesPanel.setContent(dependencies);
     dependenciesPanel.setWidth("95%");
     add(dependenciesPanel);

     approvals = new ApprovalTable();
     approvalsPanel = new DisclosurePanel(Util.C.changeScreenApprovals());
     approvalsPanel.setContent(wrap(approvals));
     dependenciesPanel.setWidth("95%");
     add(approvalsPanel);

     patchSetPanels = new FlowPanel();
     add(patchSetPanels);

     messagesContent = new FlowPanel();
     messagesContent.setStyleName("gerrit-ChangeMessages");
     messagesPanel = new DisclosurePanel(Util.C.changeScreenMessages());
     messagesPanel.setContent(messagesContent);
     add(messagesPanel);
   }

   private void displayTitle(final String subject) {
     final StringBuilder titleBuf = new StringBuilder();
     if (LocaleInfo.getCurrentLocale().isRTL()) {
       if (subject != null) {
         titleBuf.append(subject);
         titleBuf.append(" :");
       }
       titleBuf.append(Util.M.changeScreenTitleId(changeId.get()));
     } else {
       titleBuf.append(Util.M.changeScreenTitleId(changeId.get()));
       if (subject != null) {
         titleBuf.append(": ");
         titleBuf.append(subject);
       }
     }
     setTitleText(titleBuf.toString());
   }

   private void display(final ChangeDetail detail) {
     displayTitle(detail.getChange().getSubject());

     refreshOnSignIn = !detail.getChange().getStatus().isClosed();
     dependencies.setAccountInfoCache(detail.getAccounts());
     approvals.setAccountInfoCache(detail.getAccounts());

     descriptionBlock.display(detail.getChange(), detail
         .getCurrentPatchSetDetail().getInfo(), detail.getAccounts());
     dependsOn.display(detail.getDependsOn());
     neededBy.display(detail.getNeededBy());
     approvals.display(detail.getChange(), detail.getMissingApprovals(), detail
         .getApprovals());

     addPatchSets(detail);
     addMessages(detail);

     // If any dependency change is still open, show our dependency list.
     //
     boolean depsOpen = false;
     if (!detail.getChange().getStatus().isClosed()
         && detail.getDependsOn() != null) {
       for (final ChangeInfo ci : detail.getDependsOn()) {
         if (ci.getStatus() != Change.Status.MERGED) {
           depsOpen = true;
           break;
         }
       }
     }

     dependenciesPanel.setOpen(depsOpen);
     approvalsPanel.setOpen(true);
   }

   private void addPatchSets(final ChangeDetail detail) {
     patchSetPanels.clear();

     final PatchSet currps = detail.getCurrentPatchSet();
     final GitwebLink gw = Common.getGerritConfig().getGitwebLink();
     for (final PatchSet ps : detail.getPatchSets()) {
       final ComplexDisclosurePanel panel =
           new ComplexDisclosurePanel(Util.M.patchSetHeader(ps.getPatchSetId()),
               ps == currps);
       final PatchSetPanel psp = new PatchSetPanel(detail, ps);
       panel.setContent(psp);

       if (gw != null) {
         final Anchor revlink =
             new Anchor(ps.getRevision().get(), false, gw.toRevision(detail
                 .getChange().getDest().getParentKey(), ps));
         revlink.addStyleName("gerrit-PatchSetLink");
         panel.getHeader().add(revlink);
       }

       if (ps == currps) {
         psp.ensureLoaded(detail.getCurrentPatchSetDetail());
         psp.addRefreshListener(new RefreshListener() {
           public void onSuggestRefresh() {
             refresh();
           }
         });
       } else {
         panel.addEventHandler(psp);
       }
       add(panel);
       patchSetPanels.add(panel);
     }
   }

   private void addMessages(final ChangeDetail detail) {
     messagesContent.clear();

     final AccountInfoCache accts = detail.getAccounts();
     final List<ChangeMessage> msgList = detail.getMessages();
     if (msgList.size() > 1) {
       messagesContent.add(messagesMenuBar());
     }

     final long AGE = 7 * 24 * 60 * 60 * 1000L;
     final Timestamp aged = new Timestamp(System.currentTimeMillis() - AGE);

     for (int i = 0; i < msgList.size(); i++) {
       final ChangeMessage msg = msgList.get(i);
       final MessagePanel mp = new MessagePanel(msg);
       final String panelHeader;
       final ComplexDisclosurePanel panel;

       if (msg.getAuthor() != null) {
         panelHeader = FormatUtil.nameEmail(accts.get(msg.getAuthor()));
       } else {
         panelHeader = Util.C.messageNoAuthor();
       }

       if (i == msgList.size() - 1) {
         mp.isRecent = true;
       } else {
         // TODO Instead of opening messages by strict age, do it by "unread"?
         mp.isRecent = msg.getWrittenOn().after(aged);
       }

       panel = new ComplexDisclosurePanel(panelHeader, mp.isRecent);
       panel.getHeader().add(
           new InlineLabel(Util.M.messageWrittenOn(FormatUtil.mediumFormat(msg
               .getWrittenOn()))));
       panel.setContent(mp);
       messagesContent.add(panel);
     }

     if (msgList.size() > 1) {
       messagesContent.add(messagesMenuBar());
     }
     messagesPanel.setOpen(msgList.size() > 0);
     messagesPanel.setVisible(msgList.size() > 0);
   }

   private LinkMenuBar messagesMenuBar() {
     final Panel c = messagesContent;
     final LinkMenuBar m = new LinkMenuBar();
     m.addItem(Util.C.messageExpandRecent(), new ExpandAllCommand(c, true) {
       @Override
       protected void expand(final ComplexDisclosurePanel w) {
         final MessagePanel mp = (MessagePanel) w.getContent();
         w.setOpen(mp.isRecent);
       }
     });
     m.addItem(Util.C.messageExpandAll(), new ExpandAllCommand(c, true));
     m.addItem(Util.C.messageCollapseAll(), new ExpandAllCommand(c, false));
     m.lastInGroup();
     return m;
   }

   private static FlowPanel wrap(final Widget w) {
     final FlowPanel p = new FlowPanel();
     p.add(w);
     return p;
   }
 }
	// 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.FormatUtil;
	import com.google.gerrit.client.data.AccountInfoCache;
	import com.google.gerrit.client.data.ChangeDetail;
	import com.google.gerrit.client.data.ChangeInfo;
	import com.google.gerrit.client.data.GitwebLink;
	import com.google.gerrit.client.reviewdb.Change;
	import com.google.gerrit.client.reviewdb.ChangeMessage;
	import com.google.gerrit.client.reviewdb.PatchSet;
	import com.google.gerrit.client.rpc.Common;
	import com.google.gerrit.client.rpc.ScreenLoadCallback;
	import com.google.gerrit.client.ui.ComplexDisclosurePanel;
	import com.google.gerrit.client.ui.ExpandAllCommand;
	import com.google.gerrit.client.ui.LinkMenuBar;
	import com.google.gerrit.client.ui.RefreshListener;
	import com.google.gerrit.client.ui.Screen;
	import com.google.gwt.i18n.client.LocaleInfo;
	import com.google.gwt.user.client.ui.Anchor;
	import com.google.gwt.user.client.ui.DisclosurePanel;
	import com.google.gwt.user.client.ui.FlowPanel;
	import com.google.gwt.user.client.ui.InlineLabel;
	import com.google.gwt.user.client.ui.Panel;
	import com.google.gwt.user.client.ui.Widget;

	import java.sql.Timestamp;
	import java.util.List;


	public class ChangeScreen extends Screen {
	private Change.Id changeId;
	private ChangeInfo changeInfo;
	private boolean refreshOnSignIn;

	private ChangeDescriptionBlock descriptionBlock;
	private DisclosurePanel dependenciesPanel;
	private ChangeTable dependencies;
	private ChangeTable.Section dependsOn;
	private ChangeTable.Section neededBy;

	private DisclosurePanel approvalsPanel;
	private ApprovalTable approvals;

	private FlowPanel patchSetPanels;

	private DisclosurePanel messagesPanel;
	private Panel messagesContent;

	public ChangeScreen(final Change.Id toShow) {
	changeId = toShow;
	}

	public ChangeScreen(final ChangeInfo c) {
	this(c.getId());
	changeInfo = c;
	}

	@Override
	public Object getScreenCacheToken() {
	return getClass();
	}

	@Override
	public Screen recycleThis(final Screen newScreen) {
	final ChangeScreen s = (ChangeScreen) newScreen;
	changeId = s.changeId;
	changeInfo = s.changeInfo;
	return this;
	}

	@Override
	public void onSignIn() {
	if (refreshOnSignIn) {
	refresh();
	}
	}

	@Override
	public void onSignOut() {
	}

	@Override
	public void onLoad() {
	if (descriptionBlock == null) {
	initUI();
	}

	displayTitle(changeInfo != null ? changeInfo.getSubject() : null);
	super.onLoad();

	refresh();
	}

	public void refresh() {
	Util.DETAIL_SVC.changeDetail(changeId,
	new ScreenLoadCallback<ChangeDetail>() {
	public void onSuccess(final ChangeDetail r) {
	// TODO Actually we want to cancel the RPC if detached.
	if (isAttached()) {
	display(r);
	}
	}
	});
	}

	private void initUI() {
	addStyleName("gerrit-ChangeScreen");

	descriptionBlock = new ChangeDescriptionBlock();
	add(descriptionBlock);

	dependencies = new ChangeTable();
	dependsOn = new ChangeTable.Section(Util.C.changeScreenDependsOn());
	neededBy = new ChangeTable.Section(Util.C.changeScreenNeededBy());
	dependencies.addSection(dependsOn);
	dependencies.addSection(neededBy);

	dependenciesPanel = new DisclosurePanel(Util.C.changeScreenDependencies());
	dependenciesPanel.setContent(dependencies);
	dependenciesPanel.setWidth("95%");
	add(dependenciesPanel);

	approvals = new ApprovalTable();
	approvalsPanel = new DisclosurePanel(Util.C.changeScreenApprovals());
	approvalsPanel.setContent(wrap(approvals));
	dependenciesPanel.setWidth("95%");
	add(approvalsPanel);

	patchSetPanels = new FlowPanel();
	add(patchSetPanels);

	messagesContent = new FlowPanel();
	messagesContent.setStyleName("gerrit-ChangeMessages");
	messagesPanel = new DisclosurePanel(Util.C.changeScreenMessages());
	messagesPanel.setContent(messagesContent);
	add(messagesPanel);
	}

	private void displayTitle(final String subject) {
	final StringBuilder titleBuf = new StringBuilder();
	if (LocaleInfo.getCurrentLocale().isRTL()) {
	if (subject != null) {
	titleBuf.append(subject);
	titleBuf.append(" :");
	}
	titleBuf.append(Util.M.changeScreenTitleId(changeId.get()));
	} else {
	titleBuf.append(Util.M.changeScreenTitleId(changeId.get()));
	if (subject != null) {
	titleBuf.append(": ");
	titleBuf.append(subject);
	}
	}
	setTitleText(titleBuf.toString());
	}

	private void display(final ChangeDetail detail) {
	displayTitle(detail.getChange().getSubject());

	refreshOnSignIn = !detail.getChange().getStatus().isClosed();
	dependencies.setAccountInfoCache(detail.getAccounts());
	approvals.setAccountInfoCache(detail.getAccounts());

	descriptionBlock.display(detail.getChange(), detail
	.getCurrentPatchSetDetail().getInfo(), detail.getAccounts());
	dependsOn.display(detail.getDependsOn());
	neededBy.display(detail.getNeededBy());
	approvals.display(detail.getChange(), detail.getMissingApprovals(), detail
	.getApprovals());

	addPatchSets(detail);
	addMessages(detail);

	// If any dependency change is still open, show our dependency list.
	//
	boolean depsOpen = false;
	if (!detail.getChange().getStatus().isClosed()
	&& detail.getDependsOn() != null) {
	for (final ChangeInfo ci : detail.getDependsOn()) {
	if (ci.getStatus() != Change.Status.MERGED) {
	depsOpen = true;
	break;
	}
	}
	}

	dependenciesPanel.setOpen(depsOpen);
	approvalsPanel.setOpen(true);
	}

	private void addPatchSets(final ChangeDetail detail) {
	patchSetPanels.clear();

	final PatchSet currps = detail.getCurrentPatchSet();
	final GitwebLink gw = Common.getGerritConfig().getGitwebLink();
	for (final PatchSet ps : detail.getPatchSets()) {
	final ComplexDisclosurePanel panel =
	new ComplexDisclosurePanel(Util.M.patchSetHeader(ps.getPatchSetId()),
	ps == currps);
	final PatchSetPanel psp = new PatchSetPanel(detail, ps);
	panel.setContent(psp);

	if (gw != null) {
	final Anchor revlink =
	new Anchor(ps.getRevision().get(), false, gw.toRevision(detail
	.getChange().getDest().getParentKey(), ps));
	revlink.addStyleName("gerrit-PatchSetLink");
	panel.getHeader().add(revlink);
	}

	if (ps == currps) {
	psp.ensureLoaded(detail.getCurrentPatchSetDetail());
	psp.addRefreshListener(new RefreshListener() {
	public void onSuggestRefresh() {
	refresh();
	}
	});
	} else {
	panel.addEventHandler(psp);
	}
	add(panel);
	patchSetPanels.add(panel);
	}
	}

	private void addMessages(final ChangeDetail detail) {
	messagesContent.clear();

	final AccountInfoCache accts = detail.getAccounts();
	final List<ChangeMessage> msgList = detail.getMessages();
	if (msgList.size() > 1) {
	messagesContent.add(messagesMenuBar());
	}

	final long AGE = 7 * 24 * 60 * 60 * 1000L;
	final Timestamp aged = new Timestamp(System.currentTimeMillis() - AGE);

	for (int i = 0; i < msgList.size(); i++) {
	final ChangeMessage msg = msgList.get(i);
	final MessagePanel mp = new MessagePanel(msg);
	final String panelHeader;
	final ComplexDisclosurePanel panel;

	if (msg.getAuthor() != null) {
	panelHeader = FormatUtil.nameEmail(accts.get(msg.getAuthor()));
	} else {
	panelHeader = Util.C.messageNoAuthor();
	}

	if (i == msgList.size() - 1) {
	mp.isRecent = true;
	} else {
	// TODO Instead of opening messages by strict age, do it by "unread"?
	mp.isRecent = msg.getWrittenOn().after(aged);
	}

	panel = new ComplexDisclosurePanel(panelHeader, mp.isRecent);
	panel.getHeader().add(
	new InlineLabel(Util.M.messageWrittenOn(FormatUtil.mediumFormat(msg
	.getWrittenOn()))));
	panel.setContent(mp);
	messagesContent.add(panel);
	}

	if (msgList.size() > 1) {
	messagesContent.add(messagesMenuBar());
	}
	messagesPanel.setOpen(msgList.size() > 0);
	messagesPanel.setVisible(msgList.size() > 0);
	}

	private LinkMenuBar messagesMenuBar() {
	final Panel c = messagesContent;
	final LinkMenuBar m = new LinkMenuBar();
	m.addItem(Util.C.messageExpandRecent(), new ExpandAllCommand(c, true) {
	@Override
	protected void expand(final ComplexDisclosurePanel w) {
	final MessagePanel mp = (MessagePanel) w.getContent();
	w.setOpen(mp.isRecent);
	}
	});
	m.addItem(Util.C.messageExpandAll(), new ExpandAllCommand(c, true));
	m.addItem(Util.C.messageCollapseAll(), new ExpandAllCommand(c, false));
	m.lastInGroup();
	return m;
	}

	private static FlowPanel wrap(final Widget w) {
	final FlowPanel p = new FlowPanel();
	p.add(w);
	return p;
	}
	}