css/FontLoader.idl

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 */

[
    Conditional=FONT_LOAD_EVENTS,
    V8EnabledAtRuntime=fontLoadEvents,
    ActiveDOMObject,
    EventTarget,
    GenerateIsReachable=ImplDocument,
] interface FontLoader {

    attribute EventListener onloading;
    attribute EventListener onloadingdone;
    attribute EventListener onloadstart;
    attribute EventListener onload;
    attribute EventListener onerror;

    boolean checkFont(in DOMString font, in [Optional=DefaultIsNullString] DOMString text);
    void loadFont(in Dictionary params);
    void notifyWhenFontsReady(in [Callback] VoidCallback callback);
    readonly attribute boolean loading;

    void addEventListener(in DOMString type,
                          in EventListener listener,
                          in [Optional] boolean useCapture);
    void removeEventListener(in DOMString type,
                             in EventListener listener,
                             in [Optional] boolean useCapture);
    boolean dispatchEvent(in Event evt)
        raises(EventException);
};