Java Code Examples for net.sourceforge.htmlunit.corejs.javascript.Context#throwAsScriptRuntimeEx()

/**
 * Sets minimum number of characters in this text area.
 * @param minLength minimum number of characters in this text area.
 */
@JsxSetter({CHROME, FF, FF68, FF60})
public void setMinLength(final String minLength) {
    try {
        final int i = Integer.parseInt(minLength);

        if (i < 0) {
            throw Context.throwAsScriptRuntimeEx(
                new NumberFormatException("New value for minLength '" + minLength + "' is smaller than zero."));
        }
        getDomNodeOrDie().setAttribute("minLength", minLength);
    }
    catch (final NumberFormatException e) {
        getDomNodeOrDie().setAttribute("minLength", "0");
    }
}
 

/**
 * Replaces a state.
 * @param object the state object
 * @param title the title
 * @param url an optional URL
 */
@JsxFunction
public void replaceState(final Object object, final String title, final String url) {
    final WebWindow w = getWindow().getWebWindow();
    try {
        URL newStateUrl = null;
        final HtmlPage page = (HtmlPage) w.getEnclosedPage();
        if (StringUtils.isNotBlank(url)) {
            newStateUrl = page.getFullyQualifiedUrl(url);
        }
        w.getHistory().replaceState(object, newStateUrl);
    }
    catch (final MalformedURLException e) {
        Context.throwAsScriptRuntimeEx(e);
    }
}
 

/**
 * Sets maximum number of characters in this text area.
 * @param maxLength maximum number of characters in this text area.
 */
@JsxSetter
public void setMaxLength(final String maxLength) {
    try {
        final int i = Integer.parseInt(maxLength);

        if (i < 0 && getBrowserVersion().hasFeature(JS_TEXT_AREA_SET_MAXLENGTH_NEGATIVE_THROWS_EXCEPTION)) {
            throw Context.throwAsScriptRuntimeEx(
                new NumberFormatException("New value for maxLength '" + maxLength + "' is smaller than zero."));
        }
        getDomNodeOrDie().setAttribute("maxLength", maxLength);
    }
    catch (final NumberFormatException e) {
        getDomNodeOrDie().setAttribute("maxLength", "0");
    }
}
 

/**
 * Creates a modal dialog box that displays the specified HTML document.
 * @param url the URL of the document to load and display
 * @param arguments object to be made available via <tt>window.dialogArguments</tt> in the dialog window
 * @param features string that specifies the window ornaments for the dialog window
 * @return the value of the {@code returnValue} property as set by the modal dialog's window
 * @see <a href="http://msdn.microsoft.com/en-us/library/ms536759.aspx">MSDN Documentation</a>
 * @see <a href="https://developer.mozilla.org/en/DOM/window.showModalDialog">Mozilla Documentation</a>
 */
@JsxFunction(IE)
public Object showModalDialog(final String url, final Object arguments, final String features) {
    final WebWindow webWindow = getWebWindow();
    final WebClient client = webWindow.getWebClient();
    try {
        final URL completeUrl = ((HtmlPage) getDomNodeOrDie()).getFullyQualifiedUrl(url);
        final DialogWindow dialog = client.openDialogWindow(completeUrl, webWindow, arguments);
        // TODO: Theoretically, we shouldn't return until the dialog window has been close()'ed...
        // But we have to return so that the window can be close()'ed...
        // Maybe we can use Rhino's continuation support to save state and restart when
        // the dialog window is close()'ed? Would only work in interpreted mode, though.
        final ScriptableObject jsDialog = dialog.getScriptableObject();
        return jsDialog.get("returnValue", jsDialog);
    }
    catch (final IOException e) {
        throw Context.throwAsScriptRuntimeEx(e);
    }
}
 

/**
 * Replaces all child elements of this element with the supplied value.
 * @param value the new value for the contents of this element
 */
@JsxSetter({CHROME, FF})
public void setInnerHTML(final Object value) {
    final DomNode domNode;
    try {
        domNode = getDomNodeOrDie();
    }
    catch (final IllegalStateException e) {
        Context.throwAsScriptRuntimeEx(e);
        return;
    }

    domNode.removeAllChildren();

    final boolean addChildForNull = getBrowserVersion().hasFeature(JS_INNER_HTML_ADD_CHILD_FOR_NULL_VALUE);
    if ((value == null && addChildForNull) || (value != null && !"".equals(value))) {

        final String valueAsString = Context.toString(value);
        parseHtmlSnippet(domNode, valueAsString);
    }
}
 

/**
 * Closes the document implicitly, i.e. flushes the <tt>document.write</tt> buffer (IE only).
 */
private void implicitCloseIfNecessary() {
    if (!writeInCurrentDocument_) {
        try {
            close();
        }
        catch (final IOException e) {
            throw Context.throwAsScriptRuntimeEx(e);
        }
    }
}
 

/**
 * {@inheritDoc}
 */
@Override
public boolean hasInstance(final Scriptable instance) {
    if (getPrototype() == null) {
        // to handle cases like "x instanceof HTMLElement",
        // but HTMLElement is not in the prototype chain of any element
        final Object prototype = get("prototype", this);
        if (!(prototype instanceof ScriptableObject)) {
            Context.throwAsScriptRuntimeEx(new Exception("Null prototype"));
        }
        return ((ScriptableObject) prototype).hasInstance(instance);
    }

    return super.hasInstance(instance);
}
 

/**
 * Deletes an existing rule.
 * @param position the position of the rule to be deleted
 * @see <a href="http://msdn.microsoft.com/en-us/library/ms531195(v=VS.85).aspx">MSDN</a>
 */
@JsxFunction({IE, CHROME})
public void removeRule(final int position) {
    try {
        initCssRules();
        wrapped_.deleteRule(fixIndex(position));
        refreshCssRules();
    }
    catch (final DOMException e) {
        throw Context.throwAsScriptRuntimeEx(e);
    }
}
 

/**
 * Returns the Data URL.
 *
 * @param type an optional type
 * @return the dataURL
 */
public String toDataURL(String type) {
    try {
        if (type == null) {
            type = "image/png";
        }
        return "data:" + type + ";base64," + getRenderingBackend().encodeToString(type);
    }
    catch (final IOException ioe) {
        throw Context.throwAsScriptRuntimeEx(ioe);
    }
}
 

/**
 * JavaScript function "back".
 */
@JsxFunction
public void back() {
    try {
        getWindow().getWebWindow().getHistory().back();
    }
    catch (final IOException e) {
        Context.throwAsScriptRuntimeEx(e);
    }
}
 

/**
 * {@inheritDoc}
 */
@Override
public void setParentScope(final Scriptable scope) {
    super.setParentScope(scope);
    try {
        final FunctionObject functionObject = new FunctionObject("next", getClass().getDeclaredMethod("next"),
                scope);
        defineProperty("next", functionObject, ScriptableObject.DONTENUM);
    }
    catch (final Exception e) {
        Context.throwAsScriptRuntimeEx(e);
    }
}
 

/**
 * {@inheritDoc}
 */
@Override
public SimpleScriptable makeScriptableFor(final DomNode domNode) {
    final SimpleScriptable scriptable;

    // TODO: cleanup, getScriptObject() should be used!!!
    if (domNode instanceof DomElement && !(domNode instanceof HtmlElement)) {
        if (domNode instanceof SvgElement) {
            final Class<? extends HtmlUnitScriptable> javaScriptClass
                = ((JavaScriptEngine) getWindow().getWebWindow().getWebClient()
                    .getJavaScriptEngine()).getJavaScriptClass(domNode.getClass());
            try {
                scriptable = (SimpleScriptable) javaScriptClass.newInstance();
            }
            catch (final Exception e) {
                throw Context.throwAsScriptRuntimeEx(e);
            }
        }
        else {
            scriptable = new Element();
        }
    }
    else if (domNode instanceof DomAttr) {
        scriptable = new Attr();
    }
    else {
        return super.makeScriptableFor(domNode);
    }

    scriptable.setPrototype(getPrototype(scriptable.getClass()));
    scriptable.setParentScope(getParentScope());
    scriptable.setDomNode(domNode);
    return scriptable;
}
 

/**
 * Sets the {@code shape} attribute.
 * @param shape {@code shape} attribute
 */
@JsxSetter
public void setShape(final String shape) {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Returns the {@code relList} attribute.
 * @return the {@code relList} attribute
 */
@JsxGetter(FF)
public DOMTokenList getRelList() {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Returns the {@code mimeType} attribute.
 * @return the {@code mimeType} attribute
 */
@JsxGetter(IE)
public String getMimeType() {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Returns the {@code Methods} attribute.
 * @return the {@code Methods} attribute
 */
@JsxGetter(propertyName = "Methods", value = IE)
public String getMethods() {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Sets the {@code mimeType} attribute.
 * @param mimeType {@code mimeType} attribute
 */
@JsxSetter(IE)
public void setMimeType(final String mimeType) {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Sets the {@code Methods} attribute.
 * @param methods {@code Methods} attribute
 */
@JsxSetter(propertyName = "Methods", value = IE)
public void setMethods(final String methods) {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * Returns the {@code shape} attribute.
 * @return the {@code shape} attribute
 */
@JsxGetter
public String getShape() {
    throw Context.throwAsScriptRuntimeEx(new UnsupportedOperationException());
}
 

/**
 * The JavaScript constructor. It seems it is not possible to do it from JavaScript code.
 */
@JsxConstructor({CHROME, FF, EDGE})
public void jConstructor() {
    Context.throwAsScriptRuntimeEx(new IllegalArgumentException("Illegal Constructor"));
}