Examples with ViewController com.codename1.rad.controllers.ViewController used on opensource projects

Example 1 with ViewController

use of com.codename1.rad.controllers.ViewController in project CodeRAD by shannah.

the class FormController method tryCloneAndReplaceCurrentForm.

/**
 * Tries to {@link #cloneAndReplace(FormController)} the current FormController
 * @return True if it succeeds.  False if it fails.  It will fail either the current form doesn't have a form controller,
 * or there is no current form.
 */
public static boolean tryCloneAndReplaceCurrentForm() {
    Form currentForm = CN.getCurrentForm();
    if (currentForm == null) {
        return false;
    }
    ViewController bc = ViewController.getViewController(currentForm);
    if (bc == null)
        return false;
    FormController fc = bc.getFormController();
    if (fc == null)
        return false;
    try {
        cloneAndReplace(fc);
        return true;
    } catch (Exception ex) {
        return false;
    }
}

Example 2 with ViewController

use of com.codename1.rad.controllers.ViewController in project CodeRAD by shannah.

the class ActionSupport method dispatchEvent.

/**
 * Dispatches an event, first using the source's action support,
 * if it implements EventProducer interface.  If event not consumed,
 * it will find the nearest ViewController and dispatch the event
 * up the controller chain. Latter also requires that event is ControllerEvent
 * @param evt
 */
public static void dispatchEvent(ActionEvent evt) {
    if (evt.isConsumed()) {
        return;
    }
    Object source = evt.getSource();
    if (source instanceof EventProducer) {
        EventProducer ep = (EventProducer) source;
        ep.getActionSupport().fireActionEvent(evt);
    }
    if (evt.isConsumed()) {
        return;
    }
    if (evt instanceof ControllerEvent) {
        if (source instanceof Component) {
            Component cmp = (Component) source;
            ViewController controller = ViewController.getViewController(cmp);
            if (controller != null) {
                controller.dispatchEvent((ControllerEvent) evt);
            }
        } else if (source instanceof Controller) {
            Controller ctrl = (Controller) source;
            ctrl.dispatchEvent((ControllerEvent) evt);
        }
    }
}

Example 3 with ViewController

use of com.codename1.rad.controllers.ViewController in project CodeRAD by shannah.

the class ApplicationController method getCurrentFormController.

public FormController getCurrentFormController() {
    Form f = CN.getCurrentForm();
    if (f == null) {
        return null;
    }
    ViewController vc = ViewController.getViewController(f);
    if (vc == null) {
        return null;
    }
    return vc.getFormController();
}

Example 4 with ViewController

use of com.codename1.rad.controllers.ViewController in project CodenameOne by codenameone.

the class RADActionBoundUIIDSample method start.

public void start() {
    if (current != null) {
        current.show();
        return;
    }
    Form hi = new Form("Toggled Actions Sample", new BorderLayout());
    // Create a tag fo the online status property.
    Tag TAG_ONLINE = new Tag("online");
    // Create an action that will indicte the online/offline status
    ActionNode status = UI.action(// on state of TAG_ONLINE property.
    UI.label(person -> {
        if (person.isFalsey(TAG_ONLINE)) {
            return "Offline";
        } else {
            return "Online";
        }
    }), // Depending on state of TAG_ONLINE property
    UI.uiid(person -> {
        if (person.isFalsey(TAG_ONLINE)) {
            return "LoggedOutStatusButton";
        } else {
            return "LoggedInStatusButton";
        }
    }), // Icon for the action
    UI.icon(FontImage.MATERIAL_PERSON), // define it to always return true so action is always visible.
    UI.condition(person -> {
        return true;
    }));
    // A User entity we use for the models.
    class User extends Entity {
    }
    entityTypeBuilder(User.class).Boolean(TAG_ONLINE).string(Thing.name).factory(cls -> {
        return new User();
    }).build();
    // Create an entity list that will hold several users.
    EntityList el = new EntityList();
    for (int i = 0; i < 200; i++) {
        User u = new User();
        u.set(Thing.name, "User " + i);
        u.set(TAG_ONLINE, i % 2 == 0);
        el.add(u);
    }
    // The ListNode is a wrapper that will be passed to our View so that
    // they can access our action.
    ListNode node = new ListNode(// for each row.
    UI.actions(ProfileListView.ACCOUNT_LIST_ROW_ACTIONS, status));
    // Use a ProfileListView to display all of the users
    // https://shannah.github.io/CodeRAD/javadoc/com/codename1/rad/ui/entityviews/ProfileListView.html
    ProfileListView plv = new ProfileListView(el, node, 8);
    plv.setScrollableY(true);
    // In order to respond to events raised by the action, our view needs to be wrapped
    // in a controller.  Normally our form would have a FormViewController so we could
    // just use FormController, but this sample is compressed to be inside
    // a single method here so we'll create a dedicated ViewController for the list
    ViewController ctrl = new ViewController(null);
    ctrl.setView(plv);
    ctrl.addActionListener(status, evt -> {
        // The action was pressed by the user
        // Update the model's online status
        User u = (User) evt.getEntity();
        u.set(TAG_ONLINE, u.isFalsey(TAG_ONLINE));
    // This will trigger a property change in the model which will update the view.
    });
    hi.add(CENTER, plv);
    hi.show();
}

Example 5 with ViewController

use of com.codename1.rad.controllers.ViewController in project CodenameOne by codenameone.

the class RADEntityListAddRemoveInvalidateSample method start.

public void start() {
    if (current != null) {
        current.show();
        return;
    }
    // An entity for the rows our our list view.
    class Person extends Entity {
    }
    entityTypeBuilder(Person.class).string(Thing.name).factory(cls -> {
        return new Person();
    }).build();
    // A remove row action that will be added to each row
    ActionNode removeRow = UI.action(UI.icon(FontImage.MATERIAL_DELETE));
    // An internal list we will use to store the rows of the entitylist
    ArrayList internalList = new ArrayList();
    EntityList profileList = new EntityList() {

        /**
         * Override createInternalList() so that we can use our own data structure
         * for storing this list.  This is contrived to allow us to test the
         * invalidate() method.
         */
        @Override
        protected List createInternalList() {
            return internalList;
        }
    };
    // A list node to wrap our action and pass it to our view
    ListNode node = new ListNode(// of the list.
    UI.actions(ProfileListView.ACCOUNT_LIST_ROW_ACTIONS, removeRow));
    // A ProfileListView to render the list.
    // See https://shannah.github.io/CodeRAD/javadoc/com/codename1/rad/ui/entityviews/ProfileListView.html
    ProfileListView listView = new ProfileListView(profileList, node, 10);
    listView.setScrollableY(true);
    // Create a controller for the ProfileListView so that we can handle actions fired by the view.
    // Normally we'd do this in the FormController but since this sample doesn't have one
    // we create a ViewController for the ProfileListView directly.
    ViewController controller = new ViewController(null);
    controller.setView(listView);
    // Button to add rows to the list
    Button addRow = new Button(FontImage.MATERIAL_ADD);
    // Button to clear the list
    Button clear = new Button("Clear");
    addRow.addActionListener(evt -> {
        // "Add" button clicked.
        // Create new person and add to the list
        Person p = new Person();
        p.set(Thing.name, "Row " + profileList.size());
        profileList.add(p);
    // This will trigger an EntityAddedEvent which will allow
    // the ProfileListView to synchronize
    });
    clear.addActionListener(evt -> {
        // "Clear" button clicked
        // We could have called profileList.clear()
        // but this would send EntityRemoved events for each row removed
        // which is inefficient.  Instead we'll clear the elements in
        // the internal list directly, and then call invalidate()
        // so that the ProfileListView knows to resynchronize its state.
        internalList.clear();
        profileList.invalidate();
    });
    controller.addActionListener(removeRow, evt -> {
        // The "Remove" button was clicked on a row.
        profileList.remove(evt.getEntity());
    });
    Form hi = new Form("Hi World", new BorderLayout());
    hi.add(NORTH, GridLayout.encloseIn(2, clear, addRow));
    hi.add(CENTER, listView);
    hi.show();
}