Java Code Examples for com.google.gwt.user.client.ui.ListBox#getItemText()

protected void updateListBox(List<JsonObject> items, ListBox listBox, BiConsumer<ListBox, List<JsonObject>> updateTask) {
    List<String> selectedItems = null;

    int selectedIdx = listBox.getSelectedIndex();
    int itemsCount = listBox.getItemCount();

    if (selectedIdx >= 0) {
        selectedItems = new ArrayList<>();
        for (int i = selectedIdx; i < itemsCount; i++) {
            selectedItems.add(listBox.getItemText(i));
        }
    }

    updateTask.accept(listBox, items);

    if (selectedItems != null) {
        // re-set selection
        for (int i = 0; i < itemsCount; i++) {
            String item = listBox.getItemText(i);
            listBox.setItemSelected(i, selectedItems.contains(item));
        }
    }
}
 

protected static Set<String> moveSelectedItems(ListBox source, ListBox target) {
    final boolean[] sel = getSelectionBitmap(source);
    final Set<String> movedItems = new HashSet<>();
    for (int i = 0; i < sel.length; i++) {
        if (sel[i]) {
            final int optionIndex = i
                    - (sel.length - source.getItemCount());
            movedItems.add(source.getValue(optionIndex));

            // Move selection to another column
            final String text = source.getItemText(optionIndex);
            final String value = source.getValue(optionIndex);
            target.addItem(text, value);
            target.setItemSelected(target.getItemCount() - 1, true);
            source.removeItem(optionIndex);
        }
    }

    target.setFocus(true);

    return movedItems;
}
 

private Set<String> moveAllItems(ListBox source, ListBox target) {
    final Set<String> movedItems = new HashSet<String>();
    int size = source.getItemCount();
    for (int i = 0; i < size; i++) {
        movedItems.add(source.getValue(i));
        final String text = source.getItemText(i);
        final String value = source.getValue(i);
        target.addItem(text, value);
        target.setItemSelected(target.getItemCount() - 1, true);
    }
    target.setFocus(true);
    if (source.getItemCount() > 0) {
        target.setSelectedIndex(0);
    }
    source.clear();
    return movedItems;
}
 

/**
 * Creates a new property editor for selecting a Young Android asset.
 *
 * @param editor the editor that this property editor belongs to
 */
public YoungAndroidAssetSelectorPropertyEditor(final YaFormEditor editor) {
  Project project = Ode.getInstance().getProjectManager().getProject(editor.getProjectId());
  assetsFolder = ((YoungAndroidProjectNode) project.getRootNode()).getAssetsFolder();
  project.addProjectChangeListener(this);

  VerticalPanel selectorPanel = new VerticalPanel();
  assetsList = new ListBox();
  assetsList.setVisibleItemCount(10);
  assetsList.setWidth("100%");
  selectorPanel.add(assetsList);

  choices = new ListWithNone(MESSAGES.noneCaption(), new ListWithNone.ListBoxWrapper() {
    @Override
    public void addItem(String item) {
      assetsList.addItem(item);
    }

    @Override
    public String getItem(int index) {
      return assetsList.getItemText(index);
    }

    @Override
    public void removeItem(int index) {
      assetsList.removeItem(index);
    }

    @Override
    public void setSelectedIndex(int index) {
      assetsList.setSelectedIndex(index);
    }
  });

  // Fill choices with the assets.
  if (assetsFolder != null) {
    for (ProjectNode node : assetsFolder.getChildren()) {
      choices.addItem(node.getName());
    }
  }

  Button addButton = new Button(MESSAGES.addButton());
  addButton.setWidth("100%");
  addButton.addClickHandler(new ClickHandler() {
    @Override
    public void onClick(ClickEvent event) {
      FileUploadedCallback callback = new FileUploadedCallback() {
        @Override
        public void onFileUploaded(FolderNode folderNode, FileNode fileNode) {
          // At this point, the asset has been uploaded to the server, and
          // has even been added to the assetsFolder. We are all set!
          choices.selectValue(fileNode.getName());
          closeAdditionalChoiceDialog(true);
        }
      };
      FileUploadWizard uploader = new FileUploadWizard(assetsFolder, callback);
      uploader.show();
    }
  });
  selectorPanel.add(addButton);
  selectorPanel.setWidth("100%");

  // At this point, the editor hasn't finished loading.
  // Use a DeferredCommand to finish the initialization after the editor has finished loading.
  DeferredCommand.addCommand(new Command() {
    @Override
    public void execute() {
      if (editor.isLoadComplete()) {
        finishInitialization();
      } else {
        // Editor still hasn't finished loading.
        DeferredCommand.addCommand(this);
      }
    }
  });

  initAdditionalChoicePanel(selectorPanel);
}
 

/**
 * Creates a new property editor for selecting a component, where the
 * user chooses among components of one or more component types.
 *
 * @param editor the editor that this property editor belongs to
 * @param componentTypes types of component that can be selected, or null if
 *        all types of components can be selected.
 */
public YoungAndroidComponentSelectorPropertyEditor(final YaFormEditor editor,
    Set<String> componentTypes) {
  this.editor = editor;
  this.componentTypes = componentTypes;

  VerticalPanel selectorPanel = new VerticalPanel();
  componentsList = new ListBox();
  componentsList.setVisibleItemCount(10);
  componentsList.setWidth("100%");
  selectorPanel.add(componentsList);
  selectorPanel.setWidth("100%");

  choices = new ListWithNone(MESSAGES.noneCaption(), new ListWithNone.ListBoxWrapper() {
    @Override
    public void addItem(String item) {
      componentsList.addItem(item);
    }

    @Override
    public String getItem(int index) {
      return componentsList.getItemText(index);
    }

    @Override
    public void removeItem(int index) {
      componentsList.removeItem(index);
    }

    @Override
    public void setSelectedIndex(int index) {
      componentsList.setSelectedIndex(index);
    }
  });

  // At this point, the editor hasn't finished loading.
  // Use a DeferredCommand to finish the initialization after the editor has finished loading.
  DeferredCommand.addCommand(new Command() {
    @Override
    public void execute() {
      if (editor.isLoadComplete()) {
        finishInitialization();
      } else {
        // Editor still hasn't finished loading.
        DeferredCommand.addCommand(this);
      }
    }
  });

  initAdditionalChoicePanel(selectorPanel);
}
 

/**
    * Utility function to get the current text.
    */
   public static final String getSelectedText(ListBox list) {
int index = list.getSelectedIndex();
return (index >= 0) ? list.getItemText(index) : null;
   }