Examples with ScriptElement elemental.html.ScriptElement used on opensource projects

Example 1 with ScriptElement

use of elemental.html.ScriptElement in project flow by vaadin.

the class ResourceLoader method inlineScript.

/**
 * Inlines a script and notify a listener when the script is loaded. Calling
 * this method when the script is currently loading or already loaded
 * doesn't cause the script to be loaded again, but the listener will still
 * be notified when appropriate.
 *
 * @param scriptContents
 *            the script contents to inline
 * @param resourceLoadListener
 *            listener to notify when script is loaded
 */
public void inlineScript(String scriptContents, final ResourceLoadListener resourceLoadListener) {
    ResourceLoadEvent event = new ResourceLoadEvent(this, scriptContents);
    if (loadedResources.has(scriptContents)) {
        if (resourceLoadListener != null) {
            resourceLoadListener.onLoad(event);
        }
        return;
    }
    if (addListener(scriptContents, resourceLoadListener, loadListeners)) {
        ScriptElement scriptElement = getDocument().createScriptElement();
        scriptElement.setTextContent(scriptContents);
        scriptElement.setType("text/javascript");
        addOnloadHandler(scriptElement, new SimpleLoadListener(), event);
        getHead().appendChild(scriptElement);
    }
}

Example 2 with ScriptElement

use of elemental.html.ScriptElement in project flow by vaadin.

the class ResourceLoader method loadScript.

private void loadScript(String scriptUrl, ResourceLoadListener resourceLoadListener, boolean async, boolean defer, String type) {
    final String url = WidgetUtil.getAbsoluteUrl(scriptUrl);
    ResourceLoadEvent event = new ResourceLoadEvent(this, url);
    if (loadedResources.has(url)) {
        if (resourceLoadListener != null) {
            resourceLoadListener.onLoad(event);
        }
        return;
    }
    if (addListener(url, resourceLoadListener, loadListeners)) {
        ScriptElement scriptTag = Browser.getDocument().createScriptElement();
        scriptTag.setSrc(url);
        scriptTag.setType(type);
        scriptTag.setAsync(async);
        scriptTag.setDefer(defer);
        addOnloadHandler(scriptTag, new SimpleLoadListener(), event);
        getHead().appendChild(scriptTag);
    }
}

Example 3 with ScriptElement

use of elemental.html.ScriptElement in project flow by vaadin.

the class ResourceLoader method initLoadedResourcesFromDom.

/**
 * Populates the resource loader with the scripts currently added to the
 * page.
 */
private void initLoadedResourcesFromDom() {
    Document document = Browser.getDocument();
    // detect already loaded scripts and stylesheets
    NodeList scripts = document.getElementsByTagName("script");
    for (int i = 0; i < scripts.getLength(); i++) {
        ScriptElement element = (ScriptElement) scripts.item(i);
        String src = element.getSrc();
        if (src != null && src.length() != 0) {
            loadedResources.add(src);
        }
    }
    NodeList links = document.getElementsByTagName("link");
    for (int i = 0; i < links.getLength(); i++) {
        LinkElement linkElement = (LinkElement) links.item(i);
        String rel = linkElement.getRel();
        String href = linkElement.getHref();
        if (("stylesheet".equalsIgnoreCase(rel) || "import".equalsIgnoreCase(rel)) && href != null && href.length() != 0) {
            loadedResources.add(href);
        }
    }
}