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/*******************************************************************************
* Copyright (c) 2004 - 2005 University Of British Columbia and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* University Of British Columbia - initial API and implementation
*******************************************************************************/
package org.eclipse.mylar.tasklist.ui.views;
import java.util.Date;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.mylar.core.MylarPlugin;
import org.eclipse.mylar.tasklist.MylarTasklistPlugin;
import org.eclipse.mylar.tasklist.contribution.DatePicker;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.TitleEvent;
import org.eclipse.swt.browser.TitleListener;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.jface.dialogs.MessageDialog;
/**
* @author Ken Sueda
* @author Wesley Coelho (Extended to allow URL input)
*/
public class TaskInputDialog extends Dialog {
private static final String LABEL_SHELL = "New Task";
private static final String LABEL_DESCRIPTION = "Description:";
private String taskName = "";
private String priority = "P3";
private String taskURL = "http://";
private Date reminderDate = null;
private Text taskNameTextWidget = null;
private Text issueURLTextWidget = null;
private Button getDescButton = null;
public TaskInputDialog(Shell parentShell) {
super(parentShell);
}
protected Control createDialogArea(Composite parent) {
Composite composite = (Composite) super.createDialogArea(parent);
GridLayout gl = new GridLayout(4, false);
composite.setLayout(gl);
GridData data = new GridData(GridData.GRAB_HORIZONTAL
| GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
| GridData.VERTICAL_ALIGN_CENTER);
data.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH + 100);
composite.setLayoutData(data);
Label taskNameLabel = new Label(composite, SWT.WRAP);
taskNameLabel.setText(LABEL_DESCRIPTION);
taskNameLabel.setFont(parent.getFont());
taskNameTextWidget = new Text(composite, SWT.SINGLE | SWT.BORDER);
taskNameTextWidget.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
| GridData.HORIZONTAL_ALIGN_FILL));
final Combo c = new Combo(composite, SWT.NO_BACKGROUND | SWT.MULTI
| SWT.V_SCROLL | SWT.READ_ONLY | SWT.DROP_DOWN);
c.setItems(TaskListView.PRIORITY_LEVELS);
c.setText(priority);
c.addSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent e) {
priority = c.getText();
}
public void widgetDefaultSelected(SelectionEvent e) {
widgetSelected(e);
}
});
final DatePicker datePicker = new DatePicker(composite, SWT.NULL);
datePicker.setDateText("<reminder>");
datePicker.addPickerSelectionListener(new SelectionListener() {
public void widgetSelected(SelectionEvent arg0) {
reminderDate = datePicker.getDate().getTime();
}
public void widgetDefaultSelected(SelectionEvent arg0) {
// ignore
}
});
Label urlLabel = new Label(composite, SWT.WRAP);
urlLabel.setText("Web Link:");
urlLabel.setFont(parent.getFont());
issueURLTextWidget = new Text(composite, SWT.SINGLE | SWT.BORDER);
issueURLTextWidget.setText(getDefaultIssueURL());
GridData urlData = new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL);
urlData.horizontalSpan = 2;
issueURLTextWidget.setLayoutData(urlData);
getDescButton = new Button(composite, SWT.PUSH);
getDescButton.setText("Get Description");
getDescButton.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_FILL));
setButtonStatus();
issueURLTextWidget.addKeyListener(new KeyListener() {
public void keyPressed(KeyEvent e) {
setButtonStatus();
}
public void keyReleased(KeyEvent e) {
setButtonStatus();
}
});
getDescButton.addSelectionListener(new SelectionListener(){
public void widgetSelected(SelectionEvent e) {
String desc = retrieveTaskDescription(issueURLTextWidget.getText());
if (!desc.equals("")){
taskNameTextWidget.setText(desc);
}
}
public void widgetDefaultSelected(SelectionEvent e) {
}
});
return composite;
}
/**Sets the Get Description button enabled or not depending on whether there is a URL specified*/
protected void setButtonStatus(){
String url = issueURLTextWidget.getText();
if (url.length() > 10 && (url.startsWith("http://") || url.startsWith("https://"))){
String defaultPrefix = MylarPlugin.getDefault().getPreferenceStore().getString(MylarTasklistPlugin.DEFAULT_URL_PREFIX);
if (url.equals(defaultPrefix)){
getDescButton.setEnabled(false);
}
else{
getDescButton.setEnabled(true);
}
}
else{
getDescButton.setEnabled(false);
}
}
/**
* Returns the default URL text for the task by first
* checking the contents of the clipboard and then using
* the default prefix preference if that fails
*/
protected String getDefaultIssueURL(){
String clipboardText = getClipboardText();
if ((clipboardText.startsWith("http://") || clipboardText.startsWith("https://") && clipboardText.length() > 10)){
return clipboardText;
}
String defaultPrefix = MylarPlugin.getDefault().getPreferenceStore().getString(MylarTasklistPlugin.DEFAULT_URL_PREFIX);
if (!defaultPrefix.equals("")){
return defaultPrefix;
}
return taskURL;
}
/**
* Attempts to set the task description to the title from
* the specified url
*/
protected String retrieveTaskDescription(final String url){
try {
final Shell shell = new Shell(Display.getDefault());
shell.setVisible(false);
Browser browser = new Browser(shell, SWT.NONE);
browser.setUrl(url);
browser.addTitleListener(new TitleListener(){
//Determines when to ignore the second call to changed()
boolean ignore = false;
public void changed(TitleEvent event) {
if (!ignore){
if (event.title.equals(url)){
return;
}
else{
ignore = true;
if (event.title.equals(url + "/") ||
event.title.equals("Object not found!") ||
event.title.equals("No page to display") ||
event.title.equals("Cannot find server") ||
event.title.equals("Invalid Bug ID")){ //Last one is bugzilla-specific
MessageDialog.openError(Display.getDefault().getActiveShell(), "Task Description Error", "Could not retrieve a description from the specified web page.");
}
else{
taskNameTextWidget.setText(event.title);
}
}
}
}
});
} catch (RuntimeException e) {
MylarPlugin.fail(e, "could not open task web page", false);
}
return new String();
}
/**
* Returns the contents of the clipboard or "" if
* no text content was available
*/
protected String getClipboardText(){
Clipboard clipboard = new Clipboard(Display.getDefault());
TextTransfer transfer = TextTransfer.getInstance();
String contents = (String) clipboard.getContents(transfer);
if (contents != null){
return contents;
}
else{
return new String();
}
}
public String getSelectedPriority() {
return priority;
}
public String getTaskname() {
return taskName;
}
public Date getReminderDate() {
return reminderDate;
}
public String getIssueURL(){
return taskURL;
}
protected void buttonPressed(int buttonId) {
if (buttonId == IDialogConstants.OK_ID) {
taskName = taskNameTextWidget.getText();
taskURL = issueURLTextWidget.getText();
} else {
taskName = null;
}
super.buttonPressed(buttonId);
}
protected void configureShell(Shell shell) {
super.configureShell(shell);
shell.setText(LABEL_SHELL);
}
}
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