/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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 pivot.demos.dnd;
import java.io.File;
import java.io.IOException;
import java.util.Comparator;
import pivot.collections.Dictionary;
import pivot.collections.List;
import pivot.collections.ListListener;
import pivot.collections.Sequence;
import pivot.io.FileList;
import pivot.io.Folder;
import pivot.wtk.Application;
import pivot.wtk.Button;
import pivot.wtk.ButtonPressListener;
import pivot.wtk.Component;
import pivot.wtk.ComponentKeyListener;
import pivot.wtk.Display;
import pivot.wtk.DropAction;
import pivot.wtk.DropTarget;
import pivot.wtk.Keyboard;
import pivot.wtk.Manifest;
import pivot.wtk.MessageType;
import pivot.wtk.Prompt;
import pivot.wtk.PushButton;
import pivot.wtk.Span;
import pivot.wtk.TableView;
import pivot.wtk.Window;
import pivot.wtkx.WTKXSerializer;
public class FileDropTargetDemo implements Application {
private Window window = null;
private FileList fileList = null;
private TableView fileTableView = null;
private PushButton uploadButton = null;
public void startup(Display display, Dictionary<String, String> properties)
throws Exception {
WTKXSerializer wtkxSerializer = new WTKXSerializer();
window = new Window((Component)wtkxSerializer.readObject(getClass().getResource("file_drop_target_demo.wtkx")));
fileTableView = (TableView)wtkxSerializer.getObjectByName("fileTableView");
fileList = new FileList();
fileTableView.setTableData(fileList);
fileList.getListListeners().add(new ListListener<File>() {
public void itemInserted(List<File> list, int index) {
uploadButton.setEnabled(list.getLength() > 0);
}
public void itemsRemoved(List<File> list, int index, Sequence<File> files) {
uploadButton.setEnabled(list.getLength() > 0);
if (fileTableView.isFocused()
&& index < list.getLength()) {
fileTableView.setSelectedIndex(index);
}
}
public void itemUpdated(List<File> list, int index, File previousFile) {
// No-op
}
public void comparatorChanged(List<File> fileList, Comparator<File> previousComparator) {
// No-op
}
});
fileTableView.getComponentKeyListeners().add(new ComponentKeyListener() {
public boolean keyTyped(Component component, char character) {
return false;
}
public boolean keyPressed(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
if (keyCode == Keyboard.KeyCode.DELETE
|| keyCode == Keyboard.KeyCode.BACKSPACE) {
Sequence<Span> selectedRanges = fileTableView.getSelectedRanges();
for (int i = selectedRanges.getLength() - 1; i >= 0; i--) {
Span range = selectedRanges.get(i);
int index = range.getStart();
int count = range.getEnd() - index + 1;
fileList.remove(index, count);
}
}
return false;
}
public boolean keyReleased(Component component, int keyCode, Keyboard.KeyLocation keyLocation) {
return false;
}
});
fileTableView.setDropTarget(new DropTarget() {
public DropAction dragEnter(Component component, Manifest dragContent,
int supportedDropActions, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsFileList()
&& DropAction.COPY.isSelected(supportedDropActions)) {
dropAction = DropAction.COPY;
}
return dropAction;
}
public void dragExit(Component component) {
}
public DropAction dragMove(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsFileList() ? DropAction.COPY : null);
}
public DropAction userDropActionChange(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsFileList() ? DropAction.COPY : null);
}
public DropAction drop(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsFileList()) {
try {
FileList tableData = (FileList)fileTableView.getTableData();
FileList fileList = dragContent.getFileList();
for (File file : fileList) {
if (file instanceof Folder) {
tableData.add((Folder)file);
} else {
tableData.add(file);
}
}
dropAction = DropAction.COPY;
} catch(IOException exception) {
System.err.println(exception);
}
}
dragExit(component);
return dropAction;
}
});
uploadButton = (PushButton)wtkxSerializer.getObjectByName("uploadButton");
uploadButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
Prompt.prompt(MessageType.INFO, "Pretending to upload...", window);
}
});
window.setTitle("File Drop Target Demo");
window.setMaximized(true);
window.open(display);
}
public boolean shutdown(boolean optional) throws Exception {
if (window != null) {
window.close();
}
window = null;
return false;
}
public void suspend() {
}
public void resume() {
}
}