1 files changed, 248 insertions, 0 deletions
diff --git a/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/tasklist/ui/wizards/TaskDataExportWizardPage.java b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/tasklist/ui/wizards/TaskDataExportWizardPage.java
new file mode 100644
index 000000000..ac6c9ab0e
--- /dev/null
+++ b/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/tasklist/ui/wizards/TaskDataExportWizardPage.java
@@ -0,0 +1,248 @@
+package org.eclipse.mylar.tasklist.ui.wizards;
+
+import org.eclipse.jface.dialogs.IDialogSettings;
+import org.eclipse.jface.wizard.WizardPage;
+import org.eclipse.mylar.core.MylarPlugin;
+import org.eclipse.mylar.tasklist.MylarTasklistPlugin;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.ModifyEvent;
+import org.eclipse.swt.events.ModifyListener;
+import org.eclipse.swt.events.SelectionAdapter;
+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.Composite;
+import org.eclipse.swt.widgets.DirectoryDialog;
+import org.eclipse.swt.widgets.Group;
+import org.eclipse.swt.widgets.Text;
+
+/**
+ * Wizard Page for the Task Data Export Wizard
+ * 
+ * @author Wesley Coelho
+ */
+public class TaskDataExportWizardPage extends WizardPage {
+
+	private final static String PAGE_TITLE = "Export Mylar Task Data";
+	
+	//Control fields
+	private Button taskListCheckBox = null;
+	private Button taskActivationHistoryCheckBox = null;
+	private Button taskContextsCheckBox = null;;
+	private Button browseButton = null;
+	private Text destDirText = null; 
+	private Button overwriteCheckBox = null;
+	
+	//Key values for the dialog settings object
+	private final static String SETTINGS_SAVED = "Settings saved";
+	private final static String TASKLIST_SETTING = "Tasklist setting";
+	private final static String ACTIVATION_HISTORY_SETTING = "Activation history setting";
+	private final static String CONTEXTS_SETTING = "Contexts setting";
+	private final static String DEST_DIR_SETTING = "Destination directory setting";
+	private final static String OVERWRITE_SETTING = "Overwrite setting";
+	
+
+	public TaskDataExportWizardPage(){
+		super("org.eclipse.mylar.tasklist.exportPage", PAGE_TITLE, 
+				MylarTasklistPlugin.imageDescriptorFromPlugin(MylarTasklistPlugin.PLUGIN_ID, "icons/wizban/banner-export.gif"));
+		
+		setPageComplete(false);
+	}
+	
+	
+	/**
+	 * Create the widgets on the page
+	 */
+	public void createControl(Composite parent) {
+		try {
+			Composite container = new Composite(parent, SWT.NONE);
+			GridLayout layout = new GridLayout(1, false);
+			container.setLayout(layout);
+			
+			createFileSelectionControl(container);
+			createExportDirectoryControl(container);
+			
+			overwriteCheckBox = createCheckBox(container, "Overwrite existing files without warning");
+			
+			initSettings();
+			
+			setControl(container);
+			
+			setPageComplete(validate());
+		} catch (RuntimeException e) {
+			MylarPlugin.fail(e, "Could not create export wizard page", true);
+		} 
+	}
+
+	/**
+	 * Create widgets for selecting the data files to export
+	 */
+	private void createFileSelectionControl(Composite parent){
+		Group group = new Group(parent, SWT.SHADOW_ETCHED_IN);	
+		GridLayout gl = new GridLayout(1, false);
+		group.setLayout(gl);
+		GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
+		group.setLayoutData(gridData);
+		group.setText("Select data to export:");
+		
+		taskListCheckBox = createCheckBox(group, "Task List");
+		taskActivationHistoryCheckBox = createCheckBox(group, "Task Activation History");
+		taskContextsCheckBox = createCheckBox(group, "Task Contexts");
+	}
+	
+	/**
+	 * Create widgets for specifying the destination directory
+	 */
+	private void createExportDirectoryControl(Composite parent) {
+		Group destDirGroup= new Group(parent, SWT.SHADOW_ETCHED_IN);
+		destDirGroup.setText("Export destination folder");
+		destDirGroup.setLayout(new GridLayout(2, false));
+		destDirGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+		
+		destDirText = new Text(destDirGroup, SWT.BORDER);		
+		destDirText.setEditable(false);
+		destDirText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
+		destDirText.addModifyListener(new ModifyListener(){
+			public void modifyText(ModifyEvent e) {
+				controlChanged();
+			}
+		});
+		
+		
+		browseButton = new Button(destDirGroup, SWT.PUSH);
+		browseButton.setText("Browse...");
+		if (!MylarPlugin.getContextManager().hasActiveContext()) {
+			browseButton.setEnabled(true);
+		} else {
+			browseButton.setEnabled(false);
+		}
+		browseButton.addSelectionListener(new SelectionAdapter() {
+			public void widgetSelected(SelectionEvent e) {
+				DirectoryDialog dialog = new DirectoryDialog(getShell());
+				dialog.setText("Folder Selection");
+				dialog.setMessage("Specify the destination folder for task data");
+				String dir = destDirText.getText();
+				dir = dir.replaceAll("\\\\", "/");
+				dialog.setFilterPath(dir);
+
+				dir = dialog.open();
+				if(dir == null || dir.equals(""))
+					return;
+				destDirText.setText(dir);
+			}
+		});        
+	}	
+	
+	
+	/**
+	 * Initializes controls with values from the Dialog Settings object
+	 */
+	protected void initSettings(){
+		IDialogSettings settings = getDialogSettings();
+		
+		if (settings.get(SETTINGS_SAVED) == null){
+			//Set default values
+			taskListCheckBox.setSelection(true);
+			taskActivationHistoryCheckBox.setSelection(true);
+			taskContextsCheckBox.setSelection(true);
+			destDirText.setText("");
+			overwriteCheckBox.setSelection(true);
+		}
+		else{
+			//Retrieve previous values from the dialog settings
+			taskListCheckBox.setSelection(settings.getBoolean(TASKLIST_SETTING));
+			taskActivationHistoryCheckBox.setSelection(settings.getBoolean(ACTIVATION_HISTORY_SETTING));
+			taskContextsCheckBox.setSelection(settings.getBoolean(CONTEXTS_SETTING));
+			String directory = settings.get(DEST_DIR_SETTING);
+			if(directory != null){
+				destDirText.setText(settings.get(DEST_DIR_SETTING));
+			}	
+			overwriteCheckBox.setSelection(settings.getBoolean(OVERWRITE_SETTING));
+		}
+	}
+	
+	/**
+	 * Saves the control values in the dialog settings to be used as
+	 * defaults the next time the page is opened
+	 */
+	public void saveSettings(){
+		IDialogSettings settings = getDialogSettings();
+		
+		settings.put(TASKLIST_SETTING, taskListCheckBox.getSelection());
+		settings.put(ACTIVATION_HISTORY_SETTING, taskActivationHistoryCheckBox.getSelection());
+		settings.put(CONTEXTS_SETTING, taskContextsCheckBox.getSelection());
+		settings.put(DEST_DIR_SETTING, destDirText.getText());
+		settings.put(OVERWRITE_SETTING, overwriteCheckBox.getSelection());
+
+		settings.put(SETTINGS_SAVED, SETTINGS_SAVED);
+	}
+	
+	/** Convenience method for creating a new checkbox */
+	protected Button createCheckBox(Composite parent, String text){
+		Button newButton= new Button(parent, SWT.CHECK);
+		newButton.setText(text);
+		
+		newButton.addSelectionListener(new SelectionListener(){
+
+			public void widgetSelected(SelectionEvent e) {
+				controlChanged();
+			}
+
+			public void widgetDefaultSelected(SelectionEvent e) {
+				//No action required
+			}
+		});
+		
+		return newButton;
+	}
+	
+	/** Called to indicate that a control's value has changed */
+	public void controlChanged(){
+		setPageComplete(validate());
+	}
+
+	/** Returns true if the information entered by the user is valid */
+	protected boolean validate(){
+		
+		//Check that at least one type of data has been selected
+		if (!taskListCheckBox.getSelection() && 
+				!taskActivationHistoryCheckBox.getSelection() && 
+				!taskContextsCheckBox.getSelection()){
+			return false;
+		}
+		
+		//Check that a destination dir has been specified
+		if (destDirText.getText().equals("")){
+			return false;
+		}
+		
+		return true;
+	}
+	
+	/** Returns the directory where data files are to be saved */
+	public String getDestinationDirectory(){
+		return destDirText.getText();
+	}
+	
+	/** True if the user wants to export the task list */
+	public boolean exportTaskList(){
+		return taskListCheckBox.getSelection();
+	}
+	
+	/** True if the user wants to export task activation history */
+	public boolean exportActivationHistory(){
+		return taskActivationHistoryCheckBox.getSelection();
+	}
+	
+	/** True if the user wants to export task context files */
+	public boolean exportTaskContexts(){
+		return taskContextsCheckBox.getSelection();
+	}
+	
+	/** True if the user wants to overwrite files by default*/
+	public boolean overwrite(){
+		return overwriteCheckBox.getSelection();
+	}
+}