Examples with PageChangeListener org.openhab.core.io.rest.sitemap.internal.PageChangeListener used on opensource projects

Example 1 with PageChangeListener

use of org.openhab.core.io.rest.sitemap.internal.PageChangeListener in project openhab-core by openhab.

the class SitemapSubscriptionService method receive.

@Override
public void receive(Event event) {
    if (event instanceof ItemStatePredictedEvent) {
        ItemStatePredictedEvent prediction = (ItemStatePredictedEvent) event;
        Item item = itemUIRegistry.get(prediction.getItemName());
        if (item instanceof GroupItem) {
            // members and predictions aren't really possible in that case (or at least would be highly complex).
            return;
        }
        for (PageChangeListener pageChangeListener : pageChangeListeners.values()) {
            if (prediction.isConfirmation()) {
                pageChangeListener.keepCurrentState(item);
            } else {
                pageChangeListener.changeStateTo(item, prediction.getPredictedState());
            }
        }
    } else if (event instanceof ChannelDescriptionChangedEvent) {
        ChannelDescriptionChangedEvent channelDescriptionChangedEvent = (ChannelDescriptionChangedEvent) event;
        channelDescriptionChangedEvent.getLinkedItemNames().forEach(itemName -> {
            for (PageChangeListener pageChangeListener : pageChangeListeners.values()) {
                pageChangeListener.descriptionChanged(itemName);
            }
        });
    }
}

Example 2 with PageChangeListener

use of org.openhab.core.io.rest.sitemap.internal.PageChangeListener in project openhab-core by openhab.

the class SitemapSubscriptionService method deactivate.

@Deactivate
protected void deactivate() {
    pageOfSubscription.clear();
    callbacks.clear();
    creationInstants.clear();
    for (PageChangeListener listener : pageChangeListeners.values()) {
        listener.dispose();
    }
    pageChangeListeners.clear();
}

Example 3 with PageChangeListener

use of org.openhab.core.io.rest.sitemap.internal.PageChangeListener in project openhab-core by openhab.

the class SitemapSubscriptionService method removeCallbackFromListener.

private void removeCallbackFromListener(String sitemapPage, SitemapSubscriptionCallback callback) {
    PageChangeListener oldListener = pageChangeListeners.get(sitemapPage);
    if (oldListener != null) {
        oldListener.removeCallback(callback);
        if (!pageOfSubscription.values().contains(sitemapPage)) {
            // no other callbacks are left here, so we can safely dispose the listener
            oldListener.dispose();
            pageChangeListeners.remove(sitemapPage);
        }
    }
}

Example 4 with PageChangeListener

use of org.openhab.core.io.rest.sitemap.internal.PageChangeListener in project openhab-core by openhab.

the class SitemapSubscriptionService method removeSubscription.

/**
 * Removes an existing subscription
 *
 * @param subscriptionId the id of the subscription to remove
 */
public void removeSubscription(String subscriptionId) {
    creationInstants.remove(subscriptionId);
    callbacks.remove(subscriptionId);
    String sitemapPage = pageOfSubscription.remove(subscriptionId);
    if (sitemapPage != null && !pageOfSubscription.values().contains(sitemapPage)) {
        // this was the only subscription listening on this page, so we can dispose the listener
        PageChangeListener listener = pageChangeListeners.remove(sitemapPage);
        if (listener != null) {
            listener.dispose();
        }
    }
    logger.debug("Removed subscription with id {} ({} active subscriptions)", subscriptionId, callbacks.size());
}

Example 5 with PageChangeListener

use of org.openhab.core.io.rest.sitemap.internal.PageChangeListener in project openhab-core by openhab.

the class SitemapSubscriptionService method addCallbackToListener.

private void addCallbackToListener(String sitemapName, String pageId, SitemapSubscriptionCallback callback) {
    PageChangeListener listener = pageChangeListeners.get(getValue(sitemapName, pageId));
    if (listener == null) {
        // there is no listener for this page yet, so let's try to create one
        listener = new PageChangeListener(sitemapName, pageId, itemUIRegistry, collectWidgets(sitemapName, pageId));
        pageChangeListeners.put(getValue(sitemapName, pageId), listener);
    }
    listener.addCallback(callback);
}