/*
* BranchToolbarButton.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.studio.client.workbench.views.vcs;
import com.google.gwt.core.client.JsArrayString;
import com.google.gwt.event.logical.shared.HasValueChangeHandlers;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.MenuItem;
import com.google.inject.Inject;
import com.google.inject.Provider;
import org.rstudio.core.client.StringUtil;
import org.rstudio.core.client.WidgetHandlerRegistration;
import org.rstudio.core.client.widget.ScrollableToolbarPopupMenu;
import org.rstudio.core.client.widget.ToolbarButton;
import org.rstudio.core.client.widget.ToolbarPopupMenu;
import org.rstudio.studio.client.common.icons.StandardIcons;
import org.rstudio.studio.client.workbench.views.vcs.common.events.VcsRefreshEvent;
import org.rstudio.studio.client.workbench.views.vcs.common.events.VcsRefreshHandler;
import org.rstudio.studio.client.workbench.views.vcs.git.model.GitState;
public class BranchToolbarButton extends ToolbarButton
implements HasValueChangeHandlers<String>,
VcsRefreshHandler
{
protected class SwitchBranchCommand implements Command
{
public SwitchBranchCommand(String branchLabel, String branchValue)
{
branchLabel_ = branchLabel;
branchValue_ = branchValue;
}
@Override
public void execute()
{
setBranchCaption(branchLabel_);
ValueChangeEvent.fire(BranchToolbarButton.this, branchValue_);
}
private final String branchLabel_;
private final String branchValue_;
}
@Inject
public BranchToolbarButton(final Provider<GitState> pVcsState)
{
super("",
StandardIcons.INSTANCE.empty_command(),
new ScrollableToolbarPopupMenu());
pVcsState_ = pVcsState;
setTitle("Switch branch");
new WidgetHandlerRegistration(this)
{
@Override
protected HandlerRegistration doRegister()
{
return pVcsState.get().addVcsRefreshHandler(
BranchToolbarButton.this, true);
}
};
}
public void setBranchCaption(String caption)
{
if (StringUtil.isNullOrEmpty(caption))
caption = NO_BRANCH;
setText(caption);
}
@Override
public HandlerRegistration addValueChangeHandler(ValueChangeHandler<String> handler)
{
return addHandler(handler, ValueChangeEvent.getType());
}
@Override
public void onVcsRefresh(VcsRefreshEvent event)
{
ToolbarPopupMenu rootMenu = getMenu();
rootMenu.clearItems();
JsArrayString branches = pVcsState_.get().getBranchInfo()
.getBranches();
onBeforePopulateMenu(rootMenu);
for (int i = 0; i < branches.length(); i++)
{
String branch = branches.get(i);
final String branchLabel = branch.replaceFirst("^remotes/", "");
final String branchValue = branch.replaceFirst(" ->.*", "");
rootMenu.addItem(new MenuItem(branchLabel,
new SwitchBranchCommand(branchLabel,
branchValue)));
}
}
protected void onBeforePopulateMenu(ToolbarPopupMenu rootMenu)
{
}
protected final Provider<GitState> pVcsState_;
private static final String NO_BRANCH = "(No branch)";
}