Examples of com.vaadin.client.ComponentConnector

com.vaadin.client.ComponentConnector
An interface used by client-side widgets or paintable parts to receive updates from the corresponding server-side components in the form of {@link UIDL}. Updates can be sent back to the server using the {@link ApplicationConnection#updateVariable()} methods.

final public class VDragSourceIs extends VAcceptCriterion {


    @Override
    protected boolean accept(VDragEvent drag, UIDL configuration) {
        try {
            ComponentConnector component = drag.getTransferable()
                    .getDragSource();
            int c = configuration.getIntAttribute("c");
            for (int i = 0; i < c; i++) {
                String requiredPid = configuration
                        .getStringAttribute("component" + i);
                VDropHandler currentDropHandler = VDragAndDropManager.get()
                        .getCurrentDropHandler();
                ComponentConnector paintable = (ComponentConnector) ConnectorMap
                        .get(currentDropHandler.getApplicationConnection())
                        .getConnector(requiredPid);
                if (paintable == component) {
                    return true;
                }

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@AcceptCriterion(SourceIsTarget.class)
final public class VSourceIsTarget extends VAcceptCriterion {


    @Override
    protected boolean accept(VDragEvent drag, UIDL configuration) {
        ComponentConnector dragSource = drag.getTransferable().getDragSource();
        ComponentConnector paintable = VDragAndDropManager.get()
                .getCurrentDropHandler().getConnector();


        return paintable == dragSource;
    }

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                // just capture something to prevent text selection in IE
                Event.setCapture(RootPanel.getBodyElement());
            }


            private void addActiveDragSourceStyleName() {
                ComponentConnector dragSource = currentDrag.getTransferable()
                        .getDragSource();
                dragSource.getWidget().addStyleName(
                        ACTIVE_DRAG_SOURCE_STYLENAME);
            }
        };


        final int eventType = Event.as(startEvent).getTypeInt();

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                    /*
                     * Clean active source class name deferred until response is
                     * handled. E.g. hidden on start, removed in drophandler ->
                     * would flicker in case removed eagerly.
                     */
                    final ComponentConnector dragSource = currentDrag
                            .getTransferable().getDragSource();
                    final ApplicationConnection client = currentDropHandler
                            .getApplicationConnection();
                    Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
                        @Override

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    private void doRequest(DragEventType drop) {
        if (currentDropHandler == null) {
            return;
        }
        ComponentConnector paintable = currentDropHandler.getConnector();
        ApplicationConnection client = currentDropHandler
                .getApplicationConnection();
        /*
         * For drag events we are using special id that are routed to
         * "drag service" which then again finds the corresponding DropHandler

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    protected ApplicationConnection getCurrentDragApplicationConnection() {
        if (currentDrag == null) {
            return null;
        }


        final ComponentConnector dragSource = currentDrag.getTransferable()
                .getDragSource();
        if (dragSource == null) {
            return null;
        }
        return dragSource.getConnection();
    }

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        while (tabCount-- > index) {
            getWidget().removeTab(index);
        }


        for (int i = 0; i < getWidget().getTabCount(); i++) {
            ComponentConnector p = getWidget().getTab(i);
            // null for PlaceHolder widgets
            if (p != null) {
                oldWidgets.remove(p.getWidget());
            }
        }


        // Detach any old tab widget, should be max 1
        for (Iterator<Widget> iterator = oldWidgets.iterator(); iterator

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    @Override
    protected boolean accept(VDragEvent drag, UIDL configuration) {
        try {
            String pid = configuration.getStringAttribute("s");
            ComponentConnector dragSource = drag.getTransferable()
                    .getDragSource();
            String pid2 = dragSource.getConnectorId();
            if (pid2.equals(pid)) {
                Object searchedId = drag.getTransferable().getData("itemId");
                String[] stringArrayAttribute = configuration
                        .getStringArrayAttribute("keys");
                for (String string : stringArrayAttribute) {

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    /**
     * (Re-)render the content of the active tab.
     */
    protected void renderContent() {
        ComponentConnector contentConnector = null;
        if (!getChildComponents().isEmpty()) {
            contentConnector = getChildComponents().get(0);
        }


        if (null != contentConnector) {
            getWidget().renderContent(contentConnector.getWidget());
        } else {
            getWidget().renderContent(null);
        }
    }

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        try {


            String pid = configuration.getStringAttribute("s");
            VDropHandler currentDropHandler = VDragAndDropManager.get()
                    .getCurrentDropHandler();
            ComponentConnector dropHandlerConnector = currentDropHandler
                    .getConnector();


            String pid2 = dropHandlerConnector.getConnectorId();
            if (pid2.equals(pid)) {
                Object searchedId = drag.getDropDetails().get("itemIdOver");
                String[] stringArrayAttribute = configuration
                        .getStringArrayAttribute("keys");
                for (String string : stringArrayAttribute) {

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com.vaadin.client.ui.AbstractSingleComponentContainerConnector

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