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- /*
- @ITMillApache2LicenseForJavaFiles@
- */
-
- package com.vaadin.terminal.gwt.client.ui;
-
- import java.util.Iterator;
- import java.util.Vector;
-
- import com.google.gwt.user.client.DOM;
- import com.google.gwt.user.client.ui.FlowPanel;
- import com.google.gwt.user.client.ui.HTML;
- import com.google.gwt.user.client.ui.ListBox;
- import com.google.gwt.user.client.ui.Panel;
- import com.google.gwt.user.client.ui.Widget;
- import com.vaadin.terminal.gwt.client.UIDL;
-
- public class VTwinColSelect extends VOptionGroupBase {
-
- private static final String CLASSNAME = "i-select-twincol";
-
- private static final int VISIBLE_COUNT = 10;
-
- private static final int DEFAULT_COLUMN_COUNT = 10;
-
- private final ListBox options;
-
- private final ListBox selections;
-
- private final VButton add;
-
- private final VButton remove;
-
- private FlowPanel buttons;
-
- private Panel panel;
-
- private boolean widthSet = false;
-
- public VTwinColSelect() {
- super(CLASSNAME);
- options = new ListBox();
- options.addClickListener(this);
- selections = new ListBox();
- selections.addClickListener(this);
- options.setVisibleItemCount(VISIBLE_COUNT);
- selections.setVisibleItemCount(VISIBLE_COUNT);
- options.setStyleName(CLASSNAME + "-options");
- selections.setStyleName(CLASSNAME + "-selections");
- buttons = new FlowPanel();
- buttons.setStyleName(CLASSNAME + "-buttons");
- add = new VButton();
- add.setText(">>");
- add.addClickListener(this);
- remove = new VButton();
- remove.setText("<<");
- remove.addClickListener(this);
- panel = ((Panel) optionsContainer);
- panel.add(options);
- buttons.add(add);
- final HTML br = new HTML("<span/>");
- br.setStyleName(CLASSNAME + "-deco");
- buttons.add(br);
- buttons.add(remove);
- panel.add(buttons);
- panel.add(selections);
- }
-
- @Override
- protected void buildOptions(UIDL uidl) {
- final boolean enabled = !isDisabled() && !isReadonly();
- options.setMultipleSelect(isMultiselect());
- selections.setMultipleSelect(isMultiselect());
- options.setEnabled(enabled);
- selections.setEnabled(enabled);
- add.setEnabled(enabled);
- remove.setEnabled(enabled);
- options.clear();
- selections.clear();
- for (final Iterator i = uidl.getChildIterator(); i.hasNext();) {
- final UIDL optionUidl = (UIDL) i.next();
- if (optionUidl.hasAttribute("selected")) {
- selections.addItem(optionUidl.getStringAttribute("caption"),
- optionUidl.getStringAttribute("key"));
- } else {
- options.addItem(optionUidl.getStringAttribute("caption"),
- optionUidl.getStringAttribute("key"));
- }
- }
-
- int cols = -1;
- if (getColumns() > 0) {
- cols = getColumns();
- } else if (!widthSet) {
- cols = DEFAULT_COLUMN_COUNT;
- }
-
- if (cols >= 0) {
- options.setWidth(cols + "em");
- selections.setWidth(cols + "em");
- buttons.setWidth("3.5em");
- optionsContainer.setWidth((2 * cols + 4) + "em");
- }
- if (getRows() > 0) {
- options.setVisibleItemCount(getRows());
- selections.setVisibleItemCount(getRows());
-
- }
-
- }
-
- @Override
- protected Object[] getSelectedItems() {
- final Vector selectedItemKeys = new Vector();
- for (int i = 0; i < selections.getItemCount(); i++) {
- selectedItemKeys.add(selections.getValue(i));
- }
- return selectedItemKeys.toArray();
- }
-
- private boolean[] getItemsToAdd() {
- final boolean[] selectedIndexes = new boolean[options.getItemCount()];
- for (int i = 0; i < options.getItemCount(); i++) {
- if (options.isItemSelected(i)) {
- selectedIndexes[i] = true;
- } else {
- selectedIndexes[i] = false;
- }
- }
- return selectedIndexes;
- }
-
- private boolean[] getItemsToRemove() {
- final boolean[] selectedIndexes = new boolean[selections.getItemCount()];
- for (int i = 0; i < selections.getItemCount(); i++) {
- if (selections.isItemSelected(i)) {
- selectedIndexes[i] = true;
- } else {
- selectedIndexes[i] = false;
- }
- }
- return selectedIndexes;
- }
-
- @Override
- public void onClick(Widget sender) {
- super.onClick(sender);
- if (sender == add) {
- final boolean[] sel = getItemsToAdd();
- for (int i = 0; i < sel.length; i++) {
- if (sel[i]) {
- final int optionIndex = i
- - (sel.length - options.getItemCount());
- selectedKeys.add(options.getValue(optionIndex));
-
- // Move selection to another column
- final String text = options.getItemText(optionIndex);
- final String value = options.getValue(optionIndex);
- selections.addItem(text, value);
- selections.setItemSelected(selections.getItemCount() - 1,
- true);
- options.removeItem(optionIndex);
- }
- }
- client.updateVariable(id, "selected", selectedKeys.toArray(),
- isImmediate());
-
- } else if (sender == remove) {
- final boolean[] sel = getItemsToRemove();
- for (int i = 0; i < sel.length; i++) {
- if (sel[i]) {
- final int selectionIndex = i
- - (sel.length - selections.getItemCount());
- selectedKeys.remove(selections.getValue(selectionIndex));
-
- // Move selection to another column
- final String text = selections.getItemText(selectionIndex);
- final String value = selections.getValue(selectionIndex);
- options.addItem(text, value);
- options.setItemSelected(options.getItemCount() - 1, true);
- selections.removeItem(selectionIndex);
- }
- }
- client.updateVariable(id, "selected", selectedKeys.toArray(),
- isImmediate());
- } else if (sender == options) {
- // unselect all in other list, to avoid mistakes (i.e wrong button)
- final int c = selections.getItemCount();
- for (int i = 0; i < c; i++) {
- selections.setItemSelected(i, false);
- }
- } else if (sender == selections) {
- // unselect all in other list, to avoid mistakes (i.e wrong button)
- final int c = options.getItemCount();
- for (int i = 0; i < c; i++) {
- options.setItemSelected(i, false);
- }
- }
- }
-
- @Override
- public void setHeight(String height) {
- super.setHeight(height);
- if ("".equals(height)) {
- options.setHeight("");
- selections.setHeight("");
- } else {
- setFullHeightInternals();
- }
- }
-
- private void setFullHeightInternals() {
- options.setHeight("100%");
- selections.setHeight("100%");
- }
-
- @Override
- public void setWidth(String width) {
- super.setWidth(width);
- if (!"".equals(width) && width != null) {
- setRelativeInternalWidths();
- }
- }
-
- private void setRelativeInternalWidths() {
- DOM.setStyleAttribute(getElement(), "position", "relative");
- buttons.setWidth("15%");
- options.setWidth("42%");
- selections.setWidth("42%");
- widthSet = true;
- }
-
- @Override
- protected void setTabIndex(int tabIndex) {
- options.setTabIndex(tabIndex);
- selections.setTabIndex(tabIndex);
- add.setTabIndex(tabIndex);
- remove.setTabIndex(tabIndex);
- }
-
- public void focus() {
- options.setFocus(true);
- }
- }
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