src/main/java/com/google/gerrit/client/changes/ChangeTable.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 static com.google.gerrit.client.FormatUtil.mediumFormat;

 import com.google.gerrit.client.Gerrit;
 import com.google.gerrit.client.Link;
 import com.google.gerrit.client.SignedInListener;
 import com.google.gerrit.client.data.AccountInfoCache;
 import com.google.gerrit.client.data.ChangeInfo;
 import com.google.gerrit.client.reviewdb.Account;
 import com.google.gerrit.client.reviewdb.Change;
 import com.google.gerrit.client.rpc.GerritCallback;
 import com.google.gerrit.client.ui.AccountDashboardLink;
 import com.google.gerrit.client.ui.ChangeLink;
 import com.google.gerrit.client.ui.FancyFlexTable;
 import com.google.gerrit.client.ui.ProjectOpenLink;
 import com.google.gwt.user.client.Event;
 import com.google.gwt.user.client.ui.AbstractImagePrototype;
 import com.google.gwt.user.client.ui.Image;
 import com.google.gwt.user.client.ui.SourcesTableEvents;
 import com.google.gwt.user.client.ui.TableListener;
 import com.google.gwt.user.client.ui.Widget;
 import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
 import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
 import com.google.gwtjsonrpc.client.VoidResult;

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

 public class ChangeTable extends FancyFlexTable<ChangeInfo> {
   private static final String S_C_ID = "C_ID";
   private static final String S_C_SUBJECT = "C_SUBJECT";
   private static final String S_C_PROJECT = "C_PROJECT";
   private static final String S_C_LAST_UPDATE = "C_LAST_UPDATE";
   private static final String S_SECTION_HEADER = "SectionHeader";
   private static final String S_EMPTY_SECTION = "EmptySection";

   private static final int C_STAR = 1;
   private static final int C_ID = 2;
   private static final int C_SUBJECT = 3;
   private static final int C_OWNER = 4;
   private static final int C_PROJECT = 5;
   private static final int C_LAST_UPDATE = 6;
   private static final int COLUMNS = 7;

   private final List<Section> sections;
   private final SignedInListener signedInListener;
   private AccountInfoCache accountCache = AccountInfoCache.empty();

   public ChangeTable() {
     sections = new ArrayList<Section>();
     table.setText(0, C_STAR, "");
     table.setText(0, C_ID, Util.C.changeTableColumnID());
     table.setText(0, C_SUBJECT, Util.C.changeTableColumnSubject());
     table.setText(0, C_OWNER, Util.C.changeTableColumnOwner());
     table.setText(0, C_PROJECT, Util.C.changeTableColumnProject());
     table.setText(0, C_LAST_UPDATE, Util.C.changeTableColumnLastUpdate());

     final FlexCellFormatter fmt = table.getFlexCellFormatter();
     fmt.addStyleName(0, C_STAR, S_ICON_HEADER);
     fmt.addStyleName(0, C_ID, S_C_ID);
     for (int i = C_ID; i < COLUMNS; i++) {
       fmt.addStyleName(0, i, S_DATA_HEADER);
     }

     table.addTableListener(new TableListener() {
       public void onCellClicked(SourcesTableEvents sender, int row, int cell) {
         if (cell == C_STAR) {
           onStarClick(row);
         } else if (cell == C_OWNER) {
           // Don't do anything.
         } else if (getRowItem(row) != null) {
           movePointerTo(row);
         }
       }
     });

     signedInListener = new SignedInListener() {
       public void onSignIn() {
         if (table.getRowCount() <= sections.size()) {
           // There are no data rows in this table, so star status is
           // simply not relevant to the caller.
           //
           return;
         }

         Util.LIST_SVC.myStarredChangeIds(new GerritCallback<Set<Change.Id>>() {
           public void onSuccess(final Set<Change.Id> result) {
             final FlexCellFormatter fmt = table.getFlexCellFormatter();
             final int max = table.getRowCount();
             for (int row = 0; row < max; row++) {
               final ChangeInfo c = getRowItem(row);
               if (c != null) {
                 c.setStarred(result.contains(c.getId()));
                 setStar(row, c);
               }
             }
           }
         });
       }

       public void onSignOut() {
         final FlexCellFormatter fmt = table.getFlexCellFormatter();
         final int max = table.getRowCount();
         for (int row = 0; row < max; row++) {
           if (getRowItem(row) != null) {
             table.clearCell(row, C_STAR);
           }
         }
       }
     };
   }

   protected void onStarClick(final int row) {
     final ChangeInfo c = getRowItem(row);
     if (c != null && Gerrit.isSignedIn()) {
       final boolean prior = c.isStarred();
       c.setStarred(!prior);
       setStar(row, c);

       final ToggleStarRequest req = new ToggleStarRequest();
       req.toggle(c.getId(), c.isStarred());
       Util.LIST_SVC.toggleStars(req, new GerritCallback<VoidResult>() {
         public void onSuccess(final VoidResult result) {
         }

         @Override
         public void onFailure(final Throwable caught) {
           super.onFailure(caught);
           c.setStarred(prior);
           setStar(row, c);
         }
       });
     }
   }

   @Override
   protected Object getRowItemKey(final ChangeInfo item) {
     return item.getId();
   }

   @Override
   protected boolean onKeyPress(final char keyCode, final int modifiers) {
     if (super.onKeyPress(keyCode, modifiers)) {
       return true;
     }
     if (modifiers == 0) {
       switch (keyCode) {
         case 's':
           onStarClick(getCurrentRow());
           return true;
       }
     }
     return false;
   }

   @Override
   protected void onOpenItem(final ChangeInfo c) {
     Gerrit.display(Link.toChange(c), new ChangeScreen(c));
   }

   @Override
   public void onLoad() {
     super.onLoad();
     Gerrit.addSignedInListener(signedInListener);
   }

   @Override
   public void onUnload() {
     Gerrit.removeSignedInListener(signedInListener);
     super.onUnload();
   }

   private void insertNoneRow(final int row) {
     insertRow(row);
     table.setText(row, 0, Util.C.changeTableNone());
     final FlexCellFormatter fmt = table.getFlexCellFormatter();
     fmt.setColSpan(row, 0, COLUMNS);
     fmt.setStyleName(row, 0, S_EMPTY_SECTION);
   }

   private void insertChangeRow(final int row) {
     insertRow(row);
     applyDataRowStyle(row);
   }

   @Override
   protected void applyDataRowStyle(final int row) {
     super.applyDataRowStyle(row);
     final CellFormatter fmt = table.getCellFormatter();
     fmt.addStyleName(row, C_STAR, S_ICON_CELL);
     for (int i = C_ID; i < COLUMNS; i++) {
       fmt.addStyleName(row, i, S_DATA_CELL);
     }
     fmt.addStyleName(row, C_ID, S_C_ID);
     fmt.addStyleName(row, C_SUBJECT, S_C_SUBJECT);
     fmt.addStyleName(row, C_PROJECT, S_C_PROJECT);
     fmt.addStyleName(row, C_LAST_UPDATE, S_C_LAST_UPDATE);
   }

   private void populateChangeRow(final int row, final ChangeInfo c) {
     final String idstr = String.valueOf(c.getId().get());
     table.setWidget(row, C_ARROW, null);
     if (Gerrit.isSignedIn()) {
       setStar(row, c);
     }
     table.setWidget(row, C_ID, new TableChangeLink(idstr, c));

     String s = c.getSubject();
     if (s.length() > 80) {
       s = s.substring(0, 80);
     }
     if (c.getStatus() != null && c.getStatus() != Change.Status.NEW) {
       s += " (" + c.getStatus().name() + ")";
     }
     table.setWidget(row, C_SUBJECT, new TableChangeLink(s, c));
     table.setWidget(row, C_OWNER, link(c.getOwner()));
     table.setWidget(row, C_PROJECT,
         new ProjectOpenLink(c.getProject().getKey()));
     table.setText(row, C_LAST_UPDATE, mediumFormat(c.getLastUpdatedOn()));
     setRowItem(row, c);
   }

   private AccountDashboardLink link(final Account.Id id) {
     return AccountDashboardLink.link(accountCache, id);
   }

   private void setStar(final int row, final ChangeInfo c) {
     final AbstractImagePrototype star;
     if (c.isStarred()) {
       star = Gerrit.ICONS.starFilled();
     } else {
       star = Gerrit.ICONS.starOpen();
     }

     final Widget i = table.getWidget(row, C_STAR);
     if (i instanceof Image) {
       star.applyTo((Image) i);
     } else {
       table.setWidget(row, C_STAR, star.createImage());
     }
   }

   public void addSection(final Section s) {
     assert s.parent == null;

     if (s.titleText != null) {
       s.titleRow = table.getRowCount();
       table.setText(s.titleRow, 0, s.titleText);
       final FlexCellFormatter fmt = table.getFlexCellFormatter();
       fmt.setColSpan(s.titleRow, 0, COLUMNS);
       fmt.addStyleName(s.titleRow, 0, S_SECTION_HEADER);
     } else {
       s.titleRow = -1;
     }

     s.parent = this;
     s.dataBegin = table.getRowCount();
     insertNoneRow(s.dataBegin);
     sections.add(s);
   }

   public void setAccountInfoCache(final AccountInfoCache aic) {
     assert aic != null;
     accountCache = aic;
   }

   private int insertRow(final int beforeRow) {
     for (final Section s : sections) {
       boolean dirty = false;
       if (beforeRow <= s.titleRow) {
         s.titleRow++;
       }
       if (beforeRow < s.dataBegin) {
         s.dataBegin++;
       }
     }
     return table.insertRow(beforeRow);
   }

   private void removeRow(final int row) {
     for (final Section s : sections) {
       if (row < s.titleRow) {
         s.titleRow--;
       }
       if (row < s.dataBegin) {
         s.dataBegin--;
       }
     }
     table.removeRow(row);
   }

   private final class TableChangeLink extends ChangeLink {
     private TableChangeLink(final String text, final ChangeInfo c) {
       super(text, c);
     }

     @Override
     protected void onClick(final Event event) {
       movePointerTo(id);
       super.onClick(event);
     }
   }

   public static class Section {
     String titleText;

     ChangeTable parent;
     int titleRow = -1;
     int dataBegin;
     int rows;

     public Section() {
       this(null);
     }

     public Section(final String titleText) {
       setTitleText(titleText);
     }

     public void setTitleText(final String text) {
       titleText = text;
       if (titleRow >= 0) {
         parent.table.setText(titleRow, 0, titleText);
       }
     }

     public void display(final List<ChangeInfo> changeList) {
       final int sz = changeList != null ? changeList.size() : 0;
       final boolean hadData = rows > 0;

       if (hadData) {
         while (sz < rows) {
           parent.removeRow(dataBegin);
           rows--;
         }
       }

       if (sz == 0) {
         if (hadData) {
           parent.insertNoneRow(dataBegin);
         }
       } else {
         if (!hadData) {
           parent.removeRow(dataBegin);
         }

         while (rows < sz) {
           parent.insertChangeRow(dataBegin + rows);
           rows++;
         }
         for (int i = 0; i < sz; i++) {
           parent.populateChangeRow(dataBegin + i, changeList.get(i));
         }
       }
     }
   }
 }
	// 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 static com.google.gerrit.client.FormatUtil.mediumFormat;

	import com.google.gerrit.client.Gerrit;
	import com.google.gerrit.client.Link;
	import com.google.gerrit.client.SignedInListener;
	import com.google.gerrit.client.data.AccountInfoCache;
	import com.google.gerrit.client.data.ChangeInfo;
	import com.google.gerrit.client.reviewdb.Account;
	import com.google.gerrit.client.reviewdb.Change;
	import com.google.gerrit.client.rpc.GerritCallback;
	import com.google.gerrit.client.ui.AccountDashboardLink;
	import com.google.gerrit.client.ui.ChangeLink;
	import com.google.gerrit.client.ui.FancyFlexTable;
	import com.google.gerrit.client.ui.ProjectOpenLink;
	import com.google.gwt.user.client.Event;
	import com.google.gwt.user.client.ui.AbstractImagePrototype;
	import com.google.gwt.user.client.ui.Image;
	import com.google.gwt.user.client.ui.SourcesTableEvents;
	import com.google.gwt.user.client.ui.TableListener;
	import com.google.gwt.user.client.ui.Widget;
	import com.google.gwt.user.client.ui.FlexTable.FlexCellFormatter;
	import com.google.gwt.user.client.ui.HTMLTable.CellFormatter;
	import com.google.gwtjsonrpc.client.VoidResult;

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

	public class ChangeTable extends FancyFlexTable<ChangeInfo> {
	private static final String S_C_ID = "C_ID";
	private static final String S_C_SUBJECT = "C_SUBJECT";
	private static final String S_C_PROJECT = "C_PROJECT";
	private static final String S_C_LAST_UPDATE = "C_LAST_UPDATE";
	private static final String S_SECTION_HEADER = "SectionHeader";
	private static final String S_EMPTY_SECTION = "EmptySection";

	private static final int C_STAR = 1;
	private static final int C_ID = 2;
	private static final int C_SUBJECT = 3;
	private static final int C_OWNER = 4;
	private static final int C_PROJECT = 5;
	private static final int C_LAST_UPDATE = 6;
	private static final int COLUMNS = 7;

	private final List<Section> sections;
	private final SignedInListener signedInListener;
	private AccountInfoCache accountCache = AccountInfoCache.empty();

	public ChangeTable() {
	sections = new ArrayList<Section>();
	table.setText(0, C_STAR, "");
	table.setText(0, C_ID, Util.C.changeTableColumnID());
	table.setText(0, C_SUBJECT, Util.C.changeTableColumnSubject());
	table.setText(0, C_OWNER, Util.C.changeTableColumnOwner());
	table.setText(0, C_PROJECT, Util.C.changeTableColumnProject());
	table.setText(0, C_LAST_UPDATE, Util.C.changeTableColumnLastUpdate());

	final FlexCellFormatter fmt = table.getFlexCellFormatter();
	fmt.addStyleName(0, C_STAR, S_ICON_HEADER);
	fmt.addStyleName(0, C_ID, S_C_ID);
	for (int i = C_ID; i < COLUMNS; i++) {
	fmt.addStyleName(0, i, S_DATA_HEADER);
	}

	table.addTableListener(new TableListener() {
	public void onCellClicked(SourcesTableEvents sender, int row, int cell) {
	if (cell == C_STAR) {
	onStarClick(row);
	} else if (cell == C_OWNER) {
	// Don't do anything.
	} else if (getRowItem(row) != null) {
	movePointerTo(row);
	}
	}
	});

	signedInListener = new SignedInListener() {
	public void onSignIn() {
	if (table.getRowCount() <= sections.size()) {
	// There are no data rows in this table, so star status is
	// simply not relevant to the caller.
	//
	return;
	}

	Util.LIST_SVC.myStarredChangeIds(new GerritCallback<Set<Change.Id>>() {
	public void onSuccess(final Set<Change.Id> result) {
	final FlexCellFormatter fmt = table.getFlexCellFormatter();
	final int max = table.getRowCount();
	for (int row = 0; row < max; row++) {
	final ChangeInfo c = getRowItem(row);
	if (c != null) {
	c.setStarred(result.contains(c.getId()));
	setStar(row, c);
	}
	}
	}
	});
	}

	public void onSignOut() {
	final FlexCellFormatter fmt = table.getFlexCellFormatter();
	final int max = table.getRowCount();
	for (int row = 0; row < max; row++) {
	if (getRowItem(row) != null) {
	table.clearCell(row, C_STAR);
	}
	}
	}
	};
	}

	protected void onStarClick(final int row) {
	final ChangeInfo c = getRowItem(row);
	if (c != null && Gerrit.isSignedIn()) {
	final boolean prior = c.isStarred();
	c.setStarred(!prior);
	setStar(row, c);

	final ToggleStarRequest req = new ToggleStarRequest();
	req.toggle(c.getId(), c.isStarred());
	Util.LIST_SVC.toggleStars(req, new GerritCallback<VoidResult>() {
	public void onSuccess(final VoidResult result) {
	}

	@Override
	public void onFailure(final Throwable caught) {
	super.onFailure(caught);
	c.setStarred(prior);
	setStar(row, c);
	}
	});
	}
	}

	@Override
	protected Object getRowItemKey(final ChangeInfo item) {
	return item.getId();
	}

	@Override
	protected boolean onKeyPress(final char keyCode, final int modifiers) {
	if (super.onKeyPress(keyCode, modifiers)) {
	return true;
	}
	if (modifiers == 0) {
	switch (keyCode) {
	case 's':
	onStarClick(getCurrentRow());
	return true;
	}
	}
	return false;
	}

	@Override
	protected void onOpenItem(final ChangeInfo c) {
	Gerrit.display(Link.toChange(c), new ChangeScreen(c));
	}

	@Override
	public void onLoad() {
	super.onLoad();
	Gerrit.addSignedInListener(signedInListener);
	}

	@Override
	public void onUnload() {
	Gerrit.removeSignedInListener(signedInListener);
	super.onUnload();
	}

	private void insertNoneRow(final int row) {
	insertRow(row);
	table.setText(row, 0, Util.C.changeTableNone());
	final FlexCellFormatter fmt = table.getFlexCellFormatter();
	fmt.setColSpan(row, 0, COLUMNS);
	fmt.setStyleName(row, 0, S_EMPTY_SECTION);
	}

	private void insertChangeRow(final int row) {
	insertRow(row);
	applyDataRowStyle(row);
	}

	@Override
	protected void applyDataRowStyle(final int row) {
	super.applyDataRowStyle(row);
	final CellFormatter fmt = table.getCellFormatter();
	fmt.addStyleName(row, C_STAR, S_ICON_CELL);
	for (int i = C_ID; i < COLUMNS; i++) {
	fmt.addStyleName(row, i, S_DATA_CELL);
	}
	fmt.addStyleName(row, C_ID, S_C_ID);
	fmt.addStyleName(row, C_SUBJECT, S_C_SUBJECT);
	fmt.addStyleName(row, C_PROJECT, S_C_PROJECT);
	fmt.addStyleName(row, C_LAST_UPDATE, S_C_LAST_UPDATE);
	}

	private void populateChangeRow(final int row, final ChangeInfo c) {
	final String idstr = String.valueOf(c.getId().get());
	table.setWidget(row, C_ARROW, null);
	if (Gerrit.isSignedIn()) {
	setStar(row, c);
	}
	table.setWidget(row, C_ID, new TableChangeLink(idstr, c));

	String s = c.getSubject();
	if (s.length() > 80) {
	s = s.substring(0, 80);
	}
	if (c.getStatus() != null && c.getStatus() != Change.Status.NEW) {
	s += " (" + c.getStatus().name() + ")";
	}
	table.setWidget(row, C_SUBJECT, new TableChangeLink(s, c));
	table.setWidget(row, C_OWNER, link(c.getOwner()));
	table.setWidget(row, C_PROJECT,
	new ProjectOpenLink(c.getProject().getKey()));
	table.setText(row, C_LAST_UPDATE, mediumFormat(c.getLastUpdatedOn()));
	setRowItem(row, c);
	}

	private AccountDashboardLink link(final Account.Id id) {
	return AccountDashboardLink.link(accountCache, id);
	}

	private void setStar(final int row, final ChangeInfo c) {
	final AbstractImagePrototype star;
	if (c.isStarred()) {
	star = Gerrit.ICONS.starFilled();
	} else {
	star = Gerrit.ICONS.starOpen();
	}

	final Widget i = table.getWidget(row, C_STAR);
	if (i instanceof Image) {
	star.applyTo((Image) i);
	} else {
	table.setWidget(row, C_STAR, star.createImage());
	}
	}

	public void addSection(final Section s) {
	assert s.parent == null;

	if (s.titleText != null) {
	s.titleRow = table.getRowCount();
	table.setText(s.titleRow, 0, s.titleText);
	final FlexCellFormatter fmt = table.getFlexCellFormatter();
	fmt.setColSpan(s.titleRow, 0, COLUMNS);
	fmt.addStyleName(s.titleRow, 0, S_SECTION_HEADER);
	} else {
	s.titleRow = -1;
	}

	s.parent = this;
	s.dataBegin = table.getRowCount();
	insertNoneRow(s.dataBegin);
	sections.add(s);
	}

	public void setAccountInfoCache(final AccountInfoCache aic) {
	assert aic != null;
	accountCache = aic;
	}

	private int insertRow(final int beforeRow) {
	for (final Section s : sections) {
	boolean dirty = false;
	if (beforeRow <= s.titleRow) {
	s.titleRow++;
	}
	if (beforeRow < s.dataBegin) {
	s.dataBegin++;
	}
	}
	return table.insertRow(beforeRow);
	}

	private void removeRow(final int row) {
	for (final Section s : sections) {
	if (row < s.titleRow) {
	s.titleRow--;
	}
	if (row < s.dataBegin) {
	s.dataBegin--;
	}
	}
	table.removeRow(row);
	}

	private final class TableChangeLink extends ChangeLink {
	private TableChangeLink(final String text, final ChangeInfo c) {
	super(text, c);
	}

	@Override
	protected void onClick(final Event event) {
	movePointerTo(id);
	super.onClick(event);
	}
	}

	public static class Section {
	String titleText;

	ChangeTable parent;
	int titleRow = -1;
	int dataBegin;
	int rows;

	public Section() {
	this(null);
	}

	public Section(final String titleText) {
	setTitleText(titleText);
	}

	public void setTitleText(final String text) {
	titleText = text;
	if (titleRow >= 0) {
	parent.table.setText(titleRow, 0, titleText);
	}
	}

	public void display(final List<ChangeInfo> changeList) {
	final int sz = changeList != null ? changeList.size() : 0;
	final boolean hadData = rows > 0;

	if (hadData) {
	while (sz < rows) {
	parent.removeRow(dataBegin);
	rows--;
	}
	}

	if (sz == 0) {
	if (hadData) {
	parent.insertNoneRow(dataBegin);
	}
	} else {
	if (!hadData) {
	parent.removeRow(dataBegin);
	}

	while (rows < sz) {
	parent.insertChangeRow(dataBegin + rows);
	rows++;
	}
	for (int i = 0; i < sz; i++) {
	parent.populateChangeRow(dataBegin + i, changeList.get(i));
	}
	}
	}
	}
	}