src/main/java/com/google/gerrit/client/changes/PatchSetPanel.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.Gerrit;
 import com.google.gerrit.client.Link;
 import com.google.gerrit.client.SignedInListener;
 import com.google.gerrit.client.data.ApprovalType;
 import com.google.gerrit.client.data.ChangeDetail;
 import com.google.gerrit.client.data.PatchSetDetail;
 import com.google.gerrit.client.reviewdb.Account;
 import com.google.gerrit.client.reviewdb.ApprovalCategory;
 import com.google.gerrit.client.reviewdb.ApprovalCategoryValue;
 import com.google.gerrit.client.reviewdb.Branch;
 import com.google.gerrit.client.reviewdb.PatchSet;
 import com.google.gerrit.client.reviewdb.PatchSetInfo;
 import com.google.gerrit.client.reviewdb.Project;
 import com.google.gerrit.client.reviewdb.UserIdentity;
 import com.google.gerrit.client.rpc.Common;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.ui.RefreshListener;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.rpc.AsyncCallback;
 import com.google.gwt.user.client.ui.Button;
 import com.google.gwt.user.client.ui.ClickListener;
 import com.google.gwt.user.client.ui.Composite;
 import com.google.gwt.user.client.ui.DisclosureEvent;
 import com.google.gwt.user.client.ui.DisclosureHandler;
 import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.Grid;
 import com.google.gwt.user.client.ui.Panel;
 import com.google.gwt.user.client.ui.Widget;
 import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
 import com.google.gwtexpui.clippy.client.CopyableLabel;
 import com.google.gwtexpui.safehtml.client.SafeHtml;
 import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
 import com.google.gwtjsonrpc.client.VoidResult;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Set;

 class PatchSetPanel extends Composite implements DisclosureHandler {
   private static final int R_AUTHOR = 0;
   private static final int R_COMMITTER = 1;
   private static final int R_DOWNLOAD = 2;
   private static final int R_CNT = 3;

   private final ChangeDetail changeDetail;
   private final PatchSet patchSet;
   private final FlowPanel body;
   private List<RefreshListener> refreshListeners;

   private Grid infoTable;
   private Panel actionsPanel;
   private PatchTable patchTable;
   private SignedInListener signedInListener;

   PatchSetPanel(final ChangeDetail detail, final PatchSet ps) {
     changeDetail = detail;
     patchSet = ps;
     body = new FlowPanel();
     initWidget(body);
   }

   public void addRefreshListener(final RefreshListener r) {
     if (refreshListeners == null) {
       refreshListeners = new ArrayList<RefreshListener>();
     }
     if (!refreshListeners.contains(r)) {
       refreshListeners.add(r);
     }
   }

   public void removeRefreshListener(final RefreshListener r) {
     if (refreshListeners != null) {
       refreshListeners.remove(r);
     }
   }

   protected void fireOnSuggestRefresh() {
     if (refreshListeners != null) {
       for (final RefreshListener r : refreshListeners) {
         r.onSuggestRefresh();
       }
     }
   }

   @Override
   protected void onLoad() {
     super.onLoad();
     if (signedInListener != null) {
       Gerrit.addSignedInListener(signedInListener);
     }
   }

   @Override
   protected void onUnload() {
     if (signedInListener != null) {
       Gerrit.removeSignedInListener(signedInListener);
     }
     super.onUnload();
   }

   public void ensureLoaded(final PatchSetDetail detail) {
     infoTable = new Grid(R_CNT, 2);
     infoTable.setStyleName("gerrit-InfoBlock");
     infoTable.addStyleName("gerrit-PatchSetInfoBlock");

     initRow(R_AUTHOR, Util.C.patchSetInfoAuthor());
     initRow(R_COMMITTER, Util.C.patchSetInfoCommitter());
     initRow(R_DOWNLOAD, Util.C.patchSetInfoDownload());

     final CellFormatter itfmt = infoTable.getCellFormatter();
     itfmt.addStyleName(0, 0, "topmost");
     itfmt.addStyleName(0, 1, "topmost");
     itfmt.addStyleName(R_CNT - 1, 0, "bottomheader");
     itfmt.addStyleName(R_AUTHOR, 1, "useridentity");
     itfmt.addStyleName(R_COMMITTER, 1, "useridentity");
     itfmt.addStyleName(R_DOWNLOAD, 1, "command");

     final PatchSetInfo info = detail.getInfo();
     displayUserIdentity(R_AUTHOR, info.getAuthor());
     displayUserIdentity(R_COMMITTER, info.getCommitter());
     displayDownload();


     patchTable = new PatchTable();
     patchTable.setSavePointerId("patchTable "
         + changeDetail.getChange().getChangeId() + " "
         + patchSet.getPatchSetId());
     patchTable.display(info.getKey(), detail.getPatches());

     body.add(infoTable);

     actionsPanel = new FlowPanel();
     actionsPanel.setStyleName("gerrit-PatchSetActions");
     body.add(actionsPanel);
     signedInListener = new SignedInListener() {
       public void onSignIn() {
       }

       public void onSignOut() {
         actionsPanel.clear();
         actionsPanel.setVisible(false);
       }
     };
     Gerrit.addSignedInListener(signedInListener);
     if (Gerrit.isSignedIn() && changeDetail.isCurrentPatchSet(detail)) {
       populateCommentAction();
       populateActions(detail);
       if (changeDetail.canAbandon()) {
         populateAbandonAction();
       }
     }
     body.add(patchTable);
   }

   private void displayDownload() {
     final Branch.NameKey branchKey = changeDetail.getChange().getDest();
     final Project.NameKey projectKey = branchKey.getParentKey();
     final String projectName = projectKey.get();
     final FlowPanel downloads = new FlowPanel();

     if (Common.getGerritConfig().isUseRepoDownload()) {
       // This site prefers usage of the 'repo' tool, so suggest
       // that for easy fetch.
       //
       final StringBuilder r = new StringBuilder();
       r.append("repo download ");
       r.append(projectName);
       r.append(" ");
       r.append(changeDetail.getChange().getChangeId());
       r.append("/");
       r.append(patchSet.getPatchSetId());
       downloads.add(new CopyableLabel(r.toString()));
     }

     if (changeDetail.isAllowsAnonymous()
         && Common.getGerritConfig().getGitDaemonUrl() != null) {
       // Anonymous Git is claimed to be available, and this project
       // isn't secured. The anonymous Git daemon will be much more
       // efficient than our own SSH daemon, so prefer offering it.
       //
       final StringBuilder r = new StringBuilder();
       r.append("git pull ");
       r.append(Common.getGerritConfig().getGitDaemonUrl());
       r.append(projectName);
       r.append(" ");
       r.append(patchSet.getRefName());
       downloads.add(new CopyableLabel(r.toString()));

     } else if (Gerrit.isSignedIn() && Gerrit.getUserAccount() != null
         && Gerrit.getUserAccount().getSshUserName() != null
         && Gerrit.getUserAccount().getSshUserName().length() > 0) {
       // The user is signed in and anonymous access isn't allowed.
       // Use our SSH daemon URL as its the only way they can get
       // to the project (that we know of anyway).
       //
       final StringBuilder r = new StringBuilder();
       r.append("git pull ssh://");
       r.append(Gerrit.getUserAccount().getSshUserName());
       r.append("@");
       r.append(Window.Location.getHostName());
       r.append(":");
       r.append(Common.getGerritConfig().getSshdPort());
       r.append("/");
       r.append(projectName);
       r.append(" ");
       r.append(patchSet.getRefName());
       downloads.add(new CopyableLabel(r.toString()));
     }

     infoTable.setWidget(R_DOWNLOAD, 1, downloads);
   }

   private void displayUserIdentity(final int row, final UserIdentity who) {
     if (who == null) {
       infoTable.clearCell(row, 1);
       return;
     }

     final SafeHtmlBuilder m = new SafeHtmlBuilder();

     if (who.getName() != null) {
       final Account.Id aId = who.getAccount();
       if (aId != null) {
         m.openAnchor();
         m.setAttribute("href", "#" + Link.toAccountDashboard(aId));
       }
       m.append(who.getName());
       if (aId != null) {
         m.closeAnchor();
       }
     }

     if (who.getEmail() != null) {
       if (m.hasContent()) {
         m.append(' ');
       }
       m.append('<');
       m.append(who.getEmail());
       m.append('>');
     }

     if (who.getDate() != null) {
       if (m.hasContent()) {
         m.append(' ');
       }
       m.append(FormatUtil.mediumFormat(who.getDate()));
     }

     SafeHtml.set(infoTable, row, 1, m);
   }

   private void populateActions(final PatchSetDetail detail) {
     if (changeDetail.getChange().getStatus().isClosed()) {
       // Generic actions aren't allowed on closed changes.
       //
       return;
     }

     final Set<ApprovalCategory.Id> allowed = changeDetail.getCurrentActions();
     if (allowed == null) {
       // No set of actions, perhaps the user is not signed in?
       return;
     }

     for (final ApprovalType at : Common.getGerritConfig().getActionTypes()) {
       final ApprovalCategoryValue max = at.getMax();
       if (max == null || max.getValue() <= 0) {
         // No positive assertion, don't draw a button.
         continue;
       }
       if (!allowed.contains(at.getCategory().getId())) {
         // User isn't permitted to invoke this.
         continue;
       }

       final Button b =
           new Button(Util.M.patchSetAction(at.getCategory().getName(), detail
               .getPatchSet().getPatchSetId()));
       b.addClickListener(new ClickListener() {
         public void onClick(Widget sender) {
           b.setEnabled(false);
           Util.MANAGE_SVC.patchSetAction(max.getId(), patchSet.getId(),
               new GerritCallback<VoidResult>() {
                 public void onSuccess(VoidResult result) {
                   actionsPanel.remove(b);
                   fireOnSuggestRefresh();
                 }

                 @Override
                 public void onFailure(Throwable caught) {
                   b.setEnabled(true);
                   super.onFailure(caught);
                 }
               });
         }
       });
       actionsPanel.add(b);
     }
   }

   private void populateAbandonAction() {
     final Button b = new Button(Util.C.buttonAbandonChangeBegin());
     b.addClickListener(new ClickListener() {
       public void onClick(Widget sender) {
         new AbandonChangeDialog(patchSet.getId(), new AsyncCallback<Object>() {
           public void onSuccess(Object result) {
             actionsPanel.remove(b);
             fireOnSuggestRefresh();
           }

           public void onFailure(Throwable caught) {
           }
         }).center();
       }
     });
     actionsPanel.add(b);
   }

   private void populateCommentAction() {
     final Button b = new Button(Util.C.buttonPublishCommentsBegin());
     b.addClickListener(new ClickListener() {
       public void onClick(Widget sender) {
         Gerrit.display("change,publish," + patchSet.getId().toString(),
             new PublishCommentScreen(patchSet.getId()));
       }
     });
     actionsPanel.add(b);
   }

   public void onOpen(final DisclosureEvent event) {
     if (infoTable == null) {
       Util.DETAIL_SVC.patchSetDetail(patchSet.getId(),
           new GerritCallback<PatchSetDetail>() {
             public void onSuccess(final PatchSetDetail result) {
               ensureLoaded(result);
             }
           });
     }
   }

   public void onClose(final DisclosureEvent event) {
   }

   private void initRow(final int row, final String name) {
     infoTable.setText(row, 0, name);
     infoTable.getCellFormatter().addStyleName(row, 0, "header");
   }
 }
	// 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.Gerrit;
	import com.google.gerrit.client.Link;
	import com.google.gerrit.client.SignedInListener;
	import com.google.gerrit.client.data.ApprovalType;
	import com.google.gerrit.client.data.ChangeDetail;
	import com.google.gerrit.client.data.PatchSetDetail;
	import com.google.gerrit.client.reviewdb.Account;
	import com.google.gerrit.client.reviewdb.ApprovalCategory;
	import com.google.gerrit.client.reviewdb.ApprovalCategoryValue;
	import com.google.gerrit.client.reviewdb.Branch;
	import com.google.gerrit.client.reviewdb.PatchSet;
	import com.google.gerrit.client.reviewdb.PatchSetInfo;
	import com.google.gerrit.client.reviewdb.Project;
	import com.google.gerrit.client.reviewdb.UserIdentity;
	import com.google.gerrit.client.rpc.Common;
	import com.google.gerrit.client.rpc.GerritCallback;
	import com.google.gerrit.client.ui.RefreshListener;
	import com.google.gwt.user.client.Window;
	import com.google.gwt.user.client.rpc.AsyncCallback;
	import com.google.gwt.user.client.ui.Button;
	import com.google.gwt.user.client.ui.ClickListener;
	import com.google.gwt.user.client.ui.Composite;
	import com.google.gwt.user.client.ui.DisclosureEvent;
	import com.google.gwt.user.client.ui.DisclosureHandler;
	import com.google.gwt.user.client.ui.FlowPanel;
	import com.google.gwt.user.client.ui.Grid;
	import com.google.gwt.user.client.ui.Panel;
	import com.google.gwt.user.client.ui.Widget;
	import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
	import com.google.gwtexpui.clippy.client.CopyableLabel;
	import com.google.gwtexpui.safehtml.client.SafeHtml;
	import com.google.gwtexpui.safehtml.client.SafeHtmlBuilder;
	import com.google.gwtjsonrpc.client.VoidResult;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Set;

	class PatchSetPanel extends Composite implements DisclosureHandler {
	private static final int R_AUTHOR = 0;
	private static final int R_COMMITTER = 1;
	private static final int R_DOWNLOAD = 2;
	private static final int R_CNT = 3;

	private final ChangeDetail changeDetail;
	private final PatchSet patchSet;
	private final FlowPanel body;
	private List<RefreshListener> refreshListeners;

	private Grid infoTable;
	private Panel actionsPanel;
	private PatchTable patchTable;
	private SignedInListener signedInListener;

	PatchSetPanel(final ChangeDetail detail, final PatchSet ps) {
	changeDetail = detail;
	patchSet = ps;
	body = new FlowPanel();
	initWidget(body);
	}

	public void addRefreshListener(final RefreshListener r) {
	if (refreshListeners == null) {
	refreshListeners = new ArrayList<RefreshListener>();
	}
	if (!refreshListeners.contains(r)) {
	refreshListeners.add(r);
	}
	}

	public void removeRefreshListener(final RefreshListener r) {
	if (refreshListeners != null) {
	refreshListeners.remove(r);
	}
	}

	protected void fireOnSuggestRefresh() {
	if (refreshListeners != null) {
	for (final RefreshListener r : refreshListeners) {
	r.onSuggestRefresh();
	}
	}
	}

	@Override
	protected void onLoad() {
	super.onLoad();
	if (signedInListener != null) {
	Gerrit.addSignedInListener(signedInListener);
	}
	}

	@Override
	protected void onUnload() {
	if (signedInListener != null) {
	Gerrit.removeSignedInListener(signedInListener);
	}
	super.onUnload();
	}

	public void ensureLoaded(final PatchSetDetail detail) {
	infoTable = new Grid(R_CNT, 2);
	infoTable.setStyleName("gerrit-InfoBlock");
	infoTable.addStyleName("gerrit-PatchSetInfoBlock");

	initRow(R_AUTHOR, Util.C.patchSetInfoAuthor());
	initRow(R_COMMITTER, Util.C.patchSetInfoCommitter());
	initRow(R_DOWNLOAD, Util.C.patchSetInfoDownload());

	final CellFormatter itfmt = infoTable.getCellFormatter();
	itfmt.addStyleName(0, 0, "topmost");
	itfmt.addStyleName(0, 1, "topmost");
	itfmt.addStyleName(R_CNT - 1, 0, "bottomheader");
	itfmt.addStyleName(R_AUTHOR, 1, "useridentity");
	itfmt.addStyleName(R_COMMITTER, 1, "useridentity");
	itfmt.addStyleName(R_DOWNLOAD, 1, "command");

	final PatchSetInfo info = detail.getInfo();
	displayUserIdentity(R_AUTHOR, info.getAuthor());
	displayUserIdentity(R_COMMITTER, info.getCommitter());
	displayDownload();


	patchTable = new PatchTable();
	patchTable.setSavePointerId("patchTable "
	+ changeDetail.getChange().getChangeId() + " "
	+ patchSet.getPatchSetId());
	patchTable.display(info.getKey(), detail.getPatches());

	body.add(infoTable);

	actionsPanel = new FlowPanel();
	actionsPanel.setStyleName("gerrit-PatchSetActions");
	body.add(actionsPanel);
	signedInListener = new SignedInListener() {
	public void onSignIn() {
	}

	public void onSignOut() {
	actionsPanel.clear();
	actionsPanel.setVisible(false);
	}
	};
	Gerrit.addSignedInListener(signedInListener);
	if (Gerrit.isSignedIn() && changeDetail.isCurrentPatchSet(detail)) {
	populateCommentAction();
	populateActions(detail);
	if (changeDetail.canAbandon()) {
	populateAbandonAction();
	}
	}
	body.add(patchTable);
	}

	private void displayDownload() {
	final Branch.NameKey branchKey = changeDetail.getChange().getDest();
	final Project.NameKey projectKey = branchKey.getParentKey();
	final String projectName = projectKey.get();
	final FlowPanel downloads = new FlowPanel();

	if (Common.getGerritConfig().isUseRepoDownload()) {
	// This site prefers usage of the 'repo' tool, so suggest
	// that for easy fetch.
	//
	final StringBuilder r = new StringBuilder();
	r.append("repo download ");
	r.append(projectName);
	r.append(" ");
	r.append(changeDetail.getChange().getChangeId());
	r.append("/");
	r.append(patchSet.getPatchSetId());
	downloads.add(new CopyableLabel(r.toString()));
	}

	if (changeDetail.isAllowsAnonymous()
	&& Common.getGerritConfig().getGitDaemonUrl() != null) {
	// Anonymous Git is claimed to be available, and this project
	// isn't secured. The anonymous Git daemon will be much more
	// efficient than our own SSH daemon, so prefer offering it.
	//
	final StringBuilder r = new StringBuilder();
	r.append("git pull ");
	r.append(Common.getGerritConfig().getGitDaemonUrl());
	r.append(projectName);
	r.append(" ");
	r.append(patchSet.getRefName());
	downloads.add(new CopyableLabel(r.toString()));

	} else if (Gerrit.isSignedIn() && Gerrit.getUserAccount() != null
	&& Gerrit.getUserAccount().getSshUserName() != null
	&& Gerrit.getUserAccount().getSshUserName().length() > 0) {
	// The user is signed in and anonymous access isn't allowed.
	// Use our SSH daemon URL as its the only way they can get
	// to the project (that we know of anyway).
	//
	final StringBuilder r = new StringBuilder();
	r.append("git pull ssh://");
	r.append(Gerrit.getUserAccount().getSshUserName());
	r.append("@");
	r.append(Window.Location.getHostName());
	r.append(":");
	r.append(Common.getGerritConfig().getSshdPort());
	r.append("/");
	r.append(projectName);
	r.append(" ");
	r.append(patchSet.getRefName());
	downloads.add(new CopyableLabel(r.toString()));
	}

	infoTable.setWidget(R_DOWNLOAD, 1, downloads);
	}

	private void displayUserIdentity(final int row, final UserIdentity who) {
	if (who == null) {
	infoTable.clearCell(row, 1);
	return;
	}

	final SafeHtmlBuilder m = new SafeHtmlBuilder();

	if (who.getName() != null) {
	final Account.Id aId = who.getAccount();
	if (aId != null) {
	m.openAnchor();
	m.setAttribute("href", "#" + Link.toAccountDashboard(aId));
	}
	m.append(who.getName());
	if (aId != null) {
	m.closeAnchor();
	}
	}

	if (who.getEmail() != null) {
	if (m.hasContent()) {
	m.append(' ');
	}
	m.append('<');
	m.append(who.getEmail());
	m.append('>');
	}

	if (who.getDate() != null) {
	if (m.hasContent()) {
	m.append(' ');
	}
	m.append(FormatUtil.mediumFormat(who.getDate()));
	}

	SafeHtml.set(infoTable, row, 1, m);
	}

	private void populateActions(final PatchSetDetail detail) {
	if (changeDetail.getChange().getStatus().isClosed()) {
	// Generic actions aren't allowed on closed changes.
	//
	return;
	}

	final Set<ApprovalCategory.Id> allowed = changeDetail.getCurrentActions();
	if (allowed == null) {
	// No set of actions, perhaps the user is not signed in?
	return;
	}

	for (final ApprovalType at : Common.getGerritConfig().getActionTypes()) {
	final ApprovalCategoryValue max = at.getMax();
	if (max == null \|\| max.getValue() <= 0) {
	// No positive assertion, don't draw a button.
	continue;
	}
	if (!allowed.contains(at.getCategory().getId())) {
	// User isn't permitted to invoke this.
	continue;
	}

	final Button b =
	new Button(Util.M.patchSetAction(at.getCategory().getName(), detail
	.getPatchSet().getPatchSetId()));
	b.addClickListener(new ClickListener() {
	public void onClick(Widget sender) {
	b.setEnabled(false);
	Util.MANAGE_SVC.patchSetAction(max.getId(), patchSet.getId(),
	new GerritCallback<VoidResult>() {
	public void onSuccess(VoidResult result) {
	actionsPanel.remove(b);
	fireOnSuggestRefresh();
	}

	@Override
	public void onFailure(Throwable caught) {
	b.setEnabled(true);
	super.onFailure(caught);
	}
	});
	}
	});
	actionsPanel.add(b);
	}
	}

	private void populateAbandonAction() {
	final Button b = new Button(Util.C.buttonAbandonChangeBegin());
	b.addClickListener(new ClickListener() {
	public void onClick(Widget sender) {
	new AbandonChangeDialog(patchSet.getId(), new AsyncCallback<Object>() {
	public void onSuccess(Object result) {
	actionsPanel.remove(b);
	fireOnSuggestRefresh();
	}

	public void onFailure(Throwable caught) {
	}
	}).center();
	}
	});
	actionsPanel.add(b);
	}

	private void populateCommentAction() {
	final Button b = new Button(Util.C.buttonPublishCommentsBegin());
	b.addClickListener(new ClickListener() {
	public void onClick(Widget sender) {
	Gerrit.display("change,publish," + patchSet.getId().toString(),
	new PublishCommentScreen(patchSet.getId()));
	}
	});
	actionsPanel.add(b);
	}

	public void onOpen(final DisclosureEvent event) {
	if (infoTable == null) {
	Util.DETAIL_SVC.patchSetDetail(patchSet.getId(),
	new GerritCallback<PatchSetDetail>() {
	public void onSuccess(final PatchSetDetail result) {
	ensureLoaded(result);
	}
	});
	}
	}

	public void onClose(final DisclosureEvent event) {
	}

	private void initRow(final int row, final String name) {
	infoTable.setText(row, 0, name);
	infoTable.getCellFormatter().addStyleName(row, 0, "header");
	}
	}