gecko-dev/xpcom/ds/nsIProperties.idl

/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
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 * for the specific language governing rights and limitations under the
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
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 * the Initial Developer. All Rights Reserved.
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 * Contributor(s):
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or 
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#include "nsISupports.idl"

[scriptable, uuid(61c1b3c0-b1bf-11d3-93b6-00104ba0fd40)]
interface nsIProperties : nsISupports
{
    /**
     * Defines a new property. 
     * @return NS_ERROR_FAILURE if a property with that name already
     * exists.
     */
    void define(in string prop, in nsISupports initialValue);

    /**
     * Undefines a property.
     * @return NS_ERROR_FAILURE if a property with that name doesn't
     * already exist.
     */
    void undefine(in string prop);

    /**
     * Gets a property with a given name. 
     * @return NS_ERROR_FAILURE if a property with that name doesn't
     * exist.
     */
    void get(in string prop, in nsIIDRef uuid, 
             [iid_is(uuid),retval] out nsQIResult result);

    /**
     * Sets a property with a given name to a given value. 
     * @return NS_ERROR_FAILURE if a property with that name doesn't
     * exist.
     */
    void set(in string prop, in nsISupports value);

    /**
     * Returns true if the property with the given name exists.
     */
    boolean has(in string prop);
};

%{C++

#define NS_PROPERTIES_CID                            \
{ /* 4de2bc90-b1bf-11d3-93b6-00104ba0fd40 */         \
    0x4de2bc90,                                      \
    0xb1bf,                                          \
    0x11d3,                                          \
    {0x93, 0xb6, 0x00, 0x10, 0x4b, 0xa0, 0xfd, 0x40} \
}

#define NS_PROPERTIES_CONTRACTID    "@mozilla.org/properties;1"
#define NS_PROPERTIES_CLASSNAME "Properties"

#include "nsIComponentManager.h"

inline nsresult
NS_NewIProperties(nsISupports* outer, nsIProperties* *result)
{
    static NS_DEFINE_CID(kPropertiesCID, NS_PROPERTIES_CID);
    return nsComponentManager::CreateInstance(kPropertiesCID, 
                                              outer,
                                              NS_GET_IID(nsIProperties),
                                              (void**)result);
}

%}