Examples of com.vaadin.terminal.gwt.client.ApplicationConnection

com.vaadin.terminal.gwt.client.ApplicationConnection
This is the client side communication "engine", managing client-server communication with its server side counterpart {@link AbstractCommunicationManager}. Client-side widgets receive updates from the corresponding server-side components as calls to {@link Paintable#updateFromUIDL(UIDL,ApplicationConnection)} (not to beconfused with the server side interface {@link com.vaadin.terminal.Paintable}). Any client-side changes (typically resulting from user actions) are sent back to the server as variable changes (see {@link #updateVariable()}). TODO document better Entry point classes (widgetsets) define onModuleLoad().

        return getApplicationConnection().hasEventListeners(paintable,
                clickEventIdentifier);
    }


    protected void fireClick(NativeEvent event) {
        ApplicationConnection client = getApplicationConnection();
        String pid = getApplicationConnection().getPid(paintable);


        MouseEventDetails mouseDetails = new MouseEventDetails(event);


        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("mouseDetails", mouseDetails.serialize());
        client.updateVariable(pid, clickEventIdentifier, parameters, true);


    }

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    private void doRequest(DragEventType drop) {
        if (currentDropHandler == null) {
            return;
        }
        Paintable paintable = currentDropHandler.getPaintable();
        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
         * on server side.
         * 
         * TODO add rest of the data in Transferable
         * 
         * TODO implement partial updates to Transferable (currently the whole
         * Transferable is sent on each request)
         */
        visitId++;
        client.updateVariable(DD_SERVICE, "visitId", visitId, false);
        client.updateVariable(DD_SERVICE, "eventId", currentDrag.getEventId(),
                false);
        client.updateVariable(DD_SERVICE, "dhowner", paintable, false);


        VTransferable transferable = currentDrag.getTransferable();


        client.updateVariable(DD_SERVICE, "component",
                transferable.getDragSource(), false);


        client.updateVariable(DD_SERVICE, "type", drop.ordinal(), false);


        if (currentDrag.getCurrentGwtEvent() != null) {
            try {
                MouseEventDetails mouseEventDetails = new MouseEventDetails(
                        currentDrag.getCurrentGwtEvent());
                currentDrag.getDropDetails().put("mouseEvent",
                        mouseEventDetails.serialize());
            } catch (Exception e) {
                // NOP, (at least oophm on Safari) can't serialize html dd event
                // to mouseevent
            }
        } else {
            currentDrag.getDropDetails().put("mouseEvent", null);
        }
        client.updateVariable(DD_SERVICE, "evt", currentDrag.getDropDetails(),
                false);


        client.updateVariable(DD_SERVICE, "tra", transferable.getVariableMap(),
                true);


    }

View Full Code Here

        return getApplicationConnection().hasEventListeners(paintable,
                clickEventIdentifier);
    }


    protected void fireClick(NativeEvent event) {
        ApplicationConnection client = getApplicationConnection();
        String pid = getApplicationConnection().getPid(paintable);


        MouseEventDetails mouseDetails = new MouseEventDetails(event,
                getRelativeToElement());


        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("mouseDetails", mouseDetails.serialize());
        client.updateVariable(pid, clickEventIdentifier, parameters, true);


    }

View Full Code Here


    protected abstract Paintable getChildComponent(Element element);


    @Override
    protected void fireClick(NativeEvent event) {
        ApplicationConnection client = getApplicationConnection();
        String pid = getApplicationConnection().getPid(paintable);


        MouseEventDetails mouseDetails = new MouseEventDetails(event,
                getRelativeToElement());
        Paintable childComponent = getChildComponent((Element) event
                .getEventTarget().cast());


        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("mouseDetails", mouseDetails.serialize());
        parameters.put("component", childComponent);


        client.updateVariable(pid, clickEventIdentifier, parameters, true);
    }

View Full Code Here

                     * handled. E.g. hidden on start, removed in drophandler ->
                     * would flicker in case removed eagerly.
                     */
                    final Paintable dragSource = currentDrag.getTransferable()
                            .getDragSource();
                    final ApplicationConnection client = currentDropHandler
                            .getApplicationConnection();
                    Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
                        public boolean execute() {
                            if (!client.hasActiveRequest()) {
                                removeActiveDragSourceStyleName(dragSource);
                                return false;
                            }
                            return true;
                        }

View Full Code Here

    private void doRequest(DragEventType drop) {
        if (currentDropHandler == null) {
            return;
        }
        Paintable paintable = currentDropHandler.getPaintable();
        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
         * on server side.
         * 
         * TODO add rest of the data in Transferable
         * 
         * TODO implement partial updates to Transferable (currently the whole
         * Transferable is sent on each request)
         */
        visitId++;
        client.updateVariable(DD_SERVICE, "visitId", visitId, false);
        client.updateVariable(DD_SERVICE, "eventId", currentDrag.getEventId(),
                false);
        client.updateVariable(DD_SERVICE, "dhowner", paintable, false);


        VTransferable transferable = currentDrag.getTransferable();


        client.updateVariable(DD_SERVICE, "component",
                transferable.getDragSource(), false);


        client.updateVariable(DD_SERVICE, "type", drop.ordinal(), false);


        if (currentDrag.getCurrentGwtEvent() != null) {
            try {
                MouseEventDetails mouseEventDetails = new MouseEventDetails(
                        currentDrag.getCurrentGwtEvent());
                currentDrag.getDropDetails().put("mouseEvent",
                        mouseEventDetails.serialize());
            } catch (Exception e) {
                // NOP, (at least oophm on Safari) can't serialize html dd event
                // to mouseevent
            }
        } else {
            currentDrag.getDropDetails().put("mouseEvent", null);
        }
        client.updateVariable(DD_SERVICE, "evt", currentDrag.getDropDetails(),
                false);


        client.updateVariable(DD_SERVICE, "tra", transferable.getVariableMap(),
                true);


    }

View Full Code Here

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