/*
* FindOutputPane.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.output.find;
import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.dom.client.TableRowElement;
import com.google.gwt.event.dom.client.*;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.Widget;
import com.google.inject.Inject;
import org.rstudio.core.client.CodeNavigationTarget;
import org.rstudio.core.client.dom.DomUtils;
import org.rstudio.core.client.events.EnsureVisibleEvent;
import org.rstudio.core.client.events.HasSelectionCommitHandlers;
import org.rstudio.core.client.events.SelectionCommitEvent;
import org.rstudio.core.client.events.SelectionCommitHandler;
import org.rstudio.core.client.widget.*;
import org.rstudio.core.client.widget.events.SelectionChangedHandler;
import org.rstudio.studio.client.workbench.commands.Commands;
import org.rstudio.studio.client.workbench.ui.WorkbenchPane;
import org.rstudio.studio.client.workbench.views.output.find.model.FindResult;
import java.util.ArrayList;
public class FindOutputPane extends WorkbenchPane
implements FindOutputPresenter.Display,
HasSelectionCommitHandlers<CodeNavigationTarget>
{
@Inject
public FindOutputPane(Commands commands)
{
super("Find Results");
commands_ = commands;
ensureWidget();
}
@Override
protected Toolbar createMainToolbar()
{
Toolbar toolbar = new Toolbar();
searchLabel_ = new Label();
toolbar.addLeftWidget(searchLabel_);
stopSearch_ = new ToolbarButton(
commands_.interruptR().getImageResource(),
(ClickHandler) null);
stopSearch_.setVisible(false);
toolbar.addRightWidget(stopSearch_);
return toolbar;
}
@Override
protected Widget createMainWidget()
{
context_ = new FindResultContext();
FindOutputResources resources = GWT.create(FindOutputResources.class);
resources.styles().ensureInjected();
table_ = new FastSelectTable<FindResult, CodeNavigationTarget, Object>(
new FindOutputCodec(resources),
resources.styles().selectedRow(),
true,
false);
FontSizer.applyNormalFontSize(table_);
table_.addStyleName(resources.styles().findOutput());
table_.addClickHandler(new ClickHandler()
{
@Override
public void onClick(ClickEvent event)
{
if (event.getNativeButton() != NativeEvent.BUTTON_LEFT)
return;
if (dblClick_.checkForDoubleClick(event.getNativeEvent()))
fireSelectionCommitted();
}
private final DoubleClickState dblClick_ = new DoubleClickState();
});
table_.addKeyDownHandler(new KeyDownHandler()
{
@Override
public void onKeyDown(KeyDownEvent event)
{
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER)
fireSelectionCommitted();
event.stopPropagation();
event.preventDefault();
}
});
container_ = new SimplePanel();
container_.setSize("100%", "100%");
statusPanel_ = new StatusPanel();
statusPanel_.setSize("100%", "100%");
scrollPanel_ = new ScrollPanel(table_);
scrollPanel_.setSize("100%", "100%");
container_.setWidget(scrollPanel_);
return container_;
}
private void fireSelectionCommitted()
{
ArrayList<CodeNavigationTarget> values = table_.getSelectedValues();
if (values.size() == 1)
SelectionCommitEvent.fire(this, values.get(0));
}
@Override
public void addMatches(ArrayList<FindResult> findResults)
{
int matchesToAdd = Math.min(findResults.size(), MAX_COUNT - matchCount_);
if (matchesToAdd > 0)
{
matchCount_ += matchesToAdd;
if (matchCount_ > 0 && container_.getWidget() != scrollPanel_)
container_.setWidget(scrollPanel_);
table_.addItems(findResults.subList(0, matchesToAdd), false);
}
if (matchesToAdd != findResults.size())
showOverflow();
}
@Override
public void clearMatches()
{
context_.reset();
table_.clear();
overflow_ = false;
matchCount_ = 0;
statusPanel_.setStatusText("");
container_.setWidget(statusPanel_);
}
@Override
public void showSearchCompleted()
{
if (matchCount_ == 0)
statusPanel_.setStatusText("(No results found)");
}
@Override
public void ensureVisible(boolean activate)
{
fireEvent(new EnsureVisibleEvent(activate));
}
@Override
public HasClickHandlers getStopSearchButton()
{
return stopSearch_;
}
@Override
public void setStopSearchButtonVisible(boolean visible)
{
stopSearch_.setVisible(visible);
}
@Override
public void ensureSelectedRowIsVisible()
{
ArrayList<TableRowElement> rows = table_.getSelectedRows();
if (rows.size() > 0)
{
DomUtils.ensureVisibleVert(scrollPanel_.getElement(),
rows.get(0),
20);
}
}
@Override
public HandlerRegistration addSelectionChangedHandler(SelectionChangedHandler handler)
{
return table_.addSelectionChangedHandler(handler);
}
@Override
public void showOverflow()
{
if (overflow_)
return;
overflow_ = true;
ArrayList<FindResult> items = new ArrayList<FindResult>();
items.add(null);
table_.addItems(items, false);
}
@Override
public void updateSearchLabel(String query, String path)
{
SafeHtmlBuilder builder = new SafeHtmlBuilder();
builder.appendEscaped("Results for ")
.appendHtmlConstant("<strong>")
.appendEscaped(query)
.appendHtmlConstant("</strong>")
.appendEscaped(" in ")
.appendEscaped(path);
searchLabel_.getElement().setInnerHTML(builder.toSafeHtml().asString());
}
@Override
public void clearSearchLabel()
{
searchLabel_.setText("");
}
@Override
public HandlerRegistration addSelectionCommitHandler(SelectionCommitHandler<CodeNavigationTarget> handler)
{
return addHandler(handler, SelectionCommitEvent.getType());
}
private class StatusPanel extends HorizontalCenterPanel
{
public StatusPanel()
{
super(new Label(), 50);
label_ = (Label)getWidget();
}
public void setStatusText(String status)
{
label_.setText(status);
}
private final Label label_;
}
private FastSelectTable<FindResult, CodeNavigationTarget, Object> table_;
private FindResultContext context_;
private final Commands commands_;
private Label searchLabel_;
private ToolbarButton stopSearch_;
private SimplePanel container_;
private ScrollPanel scrollPanel_;
private StatusPanel statusPanel_;
private boolean overflow_ = false;
private int matchCount_;
// This must be the same as MAX_COUNT in SessionFind.cpp
private static final int MAX_COUNT = 1000;
}