--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2000, 2003 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ *
+ * Contributors:
+ * IBM Corporation - initial API and implementation
+ * Jérôme Nègre - adaptation of ListEditor to add the search button
+ *******************************************************************************/
+package net.sourceforge.phpeclipse.news.pref;
+
+import java.util.ArrayList;
+
+import net.sourceforge.phpeclipse.news.Channel;
+import net.sourceforge.phpeclipse.news.Plugin;
+import net.sourceforge.phpeclipse.news.search.SearchDialog;
+
+import org.eclipse.jface.dialogs.IDialogConstants;
+import org.eclipse.jface.dialogs.InputDialog;
+import org.eclipse.jface.preference.FieldEditor;
+import org.eclipse.jface.resource.JFaceResources;
+import org.eclipse.jface.util.Assert;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+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.Control;
+import org.eclipse.swt.widgets.List;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.swt.widgets.Widget;
+
+public class SiteListEditor extends FieldEditor {
+ /**
+ * The list widget; <code>null</code> if none
+ * (before creation or after disposal).
+ */
+ private List list;
+ private ArrayList channels;
+ /**
+ * The button box containing the Add, Remove, Up, and Down buttons;
+ * <code>null</code> if none (before creation or after disposal).
+ */
+ private Composite buttonBox;
+ /**
+ * The Add button.
+ */
+ private Button addButton;
+ /**
+ * The Search button.
+ */
+ private Button searchButton;
+ /**
+ * The Remove button.
+ */
+ private Button removeButton;
+ /**
+ * The Up button.
+ */
+ private Button upButton;
+ /**
+ * The Down button.
+ */
+ private Button downButton;
+ /**
+ * The selection listener.
+ */
+ private SelectionListener selectionListener;
+ /**
+ * Notifies that the Add button has been pressed.
+ */
+ private void addPressed() {
+ setPresentsDefaultValue(false);
+ Channel input = getNewInputChannel();
+ if (input != null) {
+ int index = list.getSelectionIndex();
+ if (index >= 0) {
+ list.add(input.getTitle(), index + 1);
+ channels.add(index + 1, input);
+ } else {
+ list.add(input.getTitle(), 0);
+ channels.add(0, input);
+ }
+ selectionChanged();
+ }
+ }
+
+ /**
+ * Notifies that the Search button has been pressed.
+ */
+ private void searchPressed() {
+ setPresentsDefaultValue(false);
+ SearchDialog sd = new SearchDialog(SiteListEditor.this
+ .getShell());
+ sd.open();
+ Channel[] inputs = sd.getChannels();
+ for(int i=0; i<inputs.length; i++) {
+ int index = list.getSelectionIndex();
+ if (index >= 0) {
+ list.add(inputs[i].getTitle(), index + 1);
+ channels.add(index + 1, inputs[i]);
+ } else {
+ list.add(inputs[i].getTitle(), 0);
+ channels.add(0, inputs[i]);
+ }
+ }
+ selectionChanged();
+ }
+
+
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ protected void adjustForNumColumns(int numColumns) {
+ Control control = getLabelControl();
+ ((GridData) control.getLayoutData()).horizontalSpan = numColumns;
+ ((GridData) list.getLayoutData()).horizontalSpan = numColumns - 1;
+ }
+ /**
+ * Creates the Add, Remove, Up, and Down button in the given button box.
+ *
+ * @param buttonBox the box for the buttons
+ */
+ private void createButtons(Composite buttonBox) {
+ addButton = createPushButton(buttonBox, "ListEditor.add");//$NON-NLS-1$
+ //TODO use my bundle ?
+ searchButton = createPushButton(buttonBox, "Search (experimental)");
+ removeButton = createPushButton(buttonBox, "ListEditor.remove");//$NON-NLS-1$
+ upButton = createPushButton(buttonBox, "ListEditor.up");//$NON-NLS-1$
+ downButton = createPushButton(buttonBox, "ListEditor.down");//$NON-NLS-1$
+ }
+ /**
+ * Helper method to create a push button.
+ *
+ * @param parent the parent control
+ * @param key the resource name used to supply the button's label text
+ */
+ private Button createPushButton(Composite parent, String key) {
+ Button button = new Button(parent, SWT.PUSH);
+ button.setText(JFaceResources.getString(key));
+ button.setFont(parent.getFont());
+ GridData data = new GridData(GridData.FILL_HORIZONTAL);
+ data.heightHint = convertVerticalDLUsToPixels(button,
+ IDialogConstants.BUTTON_HEIGHT);
+ int widthHint = convertHorizontalDLUsToPixels(button,
+ IDialogConstants.BUTTON_WIDTH);
+ data.widthHint = Math.max(widthHint, button.computeSize(SWT.DEFAULT,
+ SWT.DEFAULT, true).x);
+ button.setLayoutData(data);
+ button.addSelectionListener(getSelectionListener());
+ return button;
+ }
+ /**
+ * Creates a selection listener.
+ */
+ public void createSelectionListener() {
+ selectionListener = new SelectionAdapter() {
+ public void widgetSelected(SelectionEvent event) {
+ Widget widget = event.widget;
+ if (widget == addButton) {
+ addPressed();
+ } else if (widget == searchButton) {
+ searchPressed();
+ } else if (widget == removeButton) {
+ removePressed();
+ } else if (widget == upButton) {
+ upPressed();
+ } else if (widget == downButton) {
+ downPressed();
+ } else if (widget == list) {
+ selectionChanged();
+ }
+ }
+ };
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ protected void doFillIntoGrid(Composite parent, int numColumns) {
+ Control control = getLabelControl(parent);
+ GridData gd = new GridData();
+ gd.horizontalSpan = numColumns;
+ control.setLayoutData(gd);
+ list = getListControl(parent);
+ gd = new GridData(GridData.FILL_HORIZONTAL);
+ gd.verticalAlignment = GridData.FILL;
+ gd.horizontalSpan = numColumns - 1;
+ gd.grabExcessHorizontalSpace = true;
+ list.setLayoutData(gd);
+ buttonBox = getButtonBoxControl(parent);
+ gd = new GridData();
+ gd.verticalAlignment = GridData.BEGINNING;
+ buttonBox.setLayoutData(gd);
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ protected void doLoad() {
+ if (list != null) {
+ channels = ChannelStore.getChannels();
+ for (int i = 0; i < channels.size(); i++) {
+ list.add(((Channel)channels.get(i)).getTitle());
+ }
+ }
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ protected void doLoadDefault() {
+ if (list != null) {
+ list.removeAll();
+ channels = ChannelStore.getDefaultChannels();
+ for (int i = 0; i < channels.size(); i++) {
+ list.add(((Channel)channels.get(i)).getTitle());
+ }
+ setPresentsDefaultValue(false);
+ }
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ protected void doStore() {
+ ChannelStore.saveReadStatus(Plugin.getDefault().getChannelList());
+ ChannelStore.setChannels(channels);
+ Plugin.getDefault().updateChannelList();
+ }
+ /**
+ * Notifies that the Down button has been pressed.
+ */
+ private void downPressed() {
+ swap(false);
+ }
+ /**
+ * Returns this field editor's button box containing the Add, Remove,
+ * Up, and Down button.
+ *
+ * @param parent the parent control
+ * @return the button box
+ */
+ public Composite getButtonBoxControl(Composite parent) {
+ if (buttonBox == null) {
+ buttonBox = new Composite(parent, SWT.NULL);
+ GridLayout layout = new GridLayout();
+ layout.marginWidth = 0;
+ buttonBox.setLayout(layout);
+ createButtons(buttonBox);
+ buttonBox.addDisposeListener(new DisposeListener() {
+ public void widgetDisposed(DisposeEvent event) {
+ addButton = null;
+ searchButton = null;
+ removeButton = null;
+ upButton = null;
+ downButton = null;
+ buttonBox = null;
+ }
+ });
+ } else {
+ checkParent(buttonBox, parent);
+ }
+ selectionChanged();
+ return buttonBox;
+ }
+ /**
+ * Returns this field editor's list control.
+ *
+ * @param parent the parent control
+ * @return the list control
+ */
+ public List getListControl(Composite parent) {
+ if (list == null) {
+ list = new List(parent, SWT.BORDER | SWT.SINGLE | SWT.V_SCROLL
+ | SWT.H_SCROLL);
+ list.setFont(parent.getFont());
+ list.addSelectionListener(getSelectionListener());
+ list.addDisposeListener(new DisposeListener() {
+ public void widgetDisposed(DisposeEvent event) {
+ list = null;
+ }
+ });
+ } else {
+ checkParent(list, parent);
+ }
+ return list;
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ public int getNumberOfControls() {
+ return 2;
+ }
+ /**
+ * Returns this field editor's selection listener.
+ * The listener is created if nessessary.
+ *
+ * @return the selection listener
+ */
+ private SelectionListener getSelectionListener() {
+ if (selectionListener == null)
+ createSelectionListener();
+ return selectionListener;
+ }
+ /**
+ * Returns this field editor's shell.
+ * <p>
+ * This method is internal to the framework; subclassers should not call
+ * this method.
+ * </p>
+ *
+ * @return the shell
+ */
+ protected Shell getShell() {
+ if (addButton == null)
+ return null;
+ return addButton.getShell();
+ }
+ /**
+ * Notifies that the Remove button has been pressed.
+ */
+ private void removePressed() {
+ setPresentsDefaultValue(false);
+ int index = list.getSelectionIndex();
+ if (index >= 0) {
+ list.remove(index);
+ channels.remove(index);
+ selectionChanged();
+ }
+ }
+ /**
+ * Notifies that the list selection has changed.
+ */
+ private void selectionChanged() {
+ int index = list.getSelectionIndex();
+ int size = list.getItemCount();
+ removeButton.setEnabled(index >= 0);
+ upButton.setEnabled(size > 1 && index > 0);
+ downButton.setEnabled(size > 1 && index >= 0 && index < size - 1);
+ }
+ /* (non-Javadoc)
+ * Method declared on FieldEditor.
+ */
+ public void setFocus() {
+ if (list != null) {
+ list.setFocus();
+ }
+ }
+ /**
+ * Moves the currently selected item up or down.
+ *
+ * @param up <code>true</code> if the item should move up,
+ * and <code>false</code> if it should move down
+ */
+ private void swap(boolean up) {
+ setPresentsDefaultValue(false);
+ int index = list.getSelectionIndex();
+ int target = up ? index - 1 : index + 1;
+ if (index >= 0) {
+ //list widget
+ String[] selection = list.getSelection();
+ Assert.isTrue(selection.length == 1);
+ list.remove(index);
+ list.add(selection[0], target);
+ list.setSelection(target);
+ //channels arrayList
+ Object obj = channels.remove(index);
+ channels.add(target, obj);
+ }
+ selectionChanged();
+ }
+ /**
+ * Notifies that the Up button has been pressed.
+ */
+ private void upPressed() {
+ swap(true);
+ }
+ /*
+ * @see FieldEditor.setEnabled(boolean,Composite).
+ */
+ public void setEnabled(boolean enabled, Composite parent) {
+ super.setEnabled(enabled, parent);
+ getListControl(parent).setEnabled(enabled);
+ addButton.setEnabled(enabled);
+ removeButton.setEnabled(enabled);
+ upButton.setEnabled(enabled);
+ downButton.setEnabled(enabled);
+ }
+
+ /*
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ */
+
+ /**
+ * Creates a site list field editor.
+ *
+ * @param name the name of the preference this field editor works on
+ * @param labelText the label text of the field editor
+ * @param parent the parent of the field editor's control
+ */
+ protected SiteListEditor(String name, String labelText, Composite parent) {
+ init(name, labelText);
+ createControl(parent);
+ }
+ /**
+ * Creates and returns a new item for the list.
+ *
+ * @return a new item
+ */
+ protected Channel getNewInputChannel() {
+ InputDialog dialog;
+ dialog = new InputDialog(this.getShell(), "All The News",
+ "Enter new site name", "", null);
+ dialog.open();
+ if ("".equals(dialog.getValue()) || dialog.getValue() == null)
+ return null;
+ String title = dialog.getValue();
+ dialog = new InputDialog(this.getShell(), "All The News",
+ "Enter new site URL", "", null);
+ dialog.open();
+ if ("".equals(dialog.getValue()) || dialog.getValue() == null)
+ return null;
+ String url = dialog.getValue();
+ return new Channel(title, url);
+ }
+}
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git://git.phpeclipse.com / phpeclipse.git / blobdiff