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993c03acb1
Differential Revision: https://phabricator.services.mozilla.com/D31769 --HG-- extra : moz-landing-system : lando
333 lines
11 KiB
Plaintext
333 lines
11 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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native HKEY(HKEY);
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/**
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* This interface is designed to provide scriptable access to the Windows
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* registry system ("With Great Power Comes Great Responsibility"). The
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* interface represents a single key in the registry.
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*
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* This interface is highly Win32 specific.
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*/
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[scriptable, uuid(2555b930-d64f-437e-9be7-0a2cb252c1f4)]
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interface nsIWindowsRegKey : nsISupports
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{
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/**
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* Root keys. The values for these keys correspond to the values from
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* WinReg.h in the MS Platform SDK. The ROOT_KEY_ prefix corresponds to the
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* HKEY_ prefix in the MS Platform SDK.
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*
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* This interface is not restricted to using only these root keys.
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*/
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const unsigned long ROOT_KEY_CLASSES_ROOT = 0x80000000;
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const unsigned long ROOT_KEY_CURRENT_USER = 0x80000001;
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const unsigned long ROOT_KEY_LOCAL_MACHINE = 0x80000002;
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/**
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* Values for the mode parameter passed to the open and create methods.
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* The values defined here correspond to the REGSAM values defined in
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* WinNT.h in the MS Platform SDK, where ACCESS_ is replaced with KEY_.
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*
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* This interface is not restricted to using only these access types.
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*/
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const unsigned long ACCESS_BASIC = 0x00020000;
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const unsigned long ACCESS_QUERY_VALUE = 0x00000001;
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const unsigned long ACCESS_SET_VALUE = 0x00000002;
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const unsigned long ACCESS_CREATE_SUB_KEY = 0x00000004;
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const unsigned long ACCESS_ENUMERATE_SUB_KEYS = 0x00000008;
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const unsigned long ACCESS_NOTIFY = 0x00000010;
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const unsigned long ACCESS_READ = ACCESS_BASIC |
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ACCESS_QUERY_VALUE |
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ACCESS_ENUMERATE_SUB_KEYS |
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ACCESS_NOTIFY;
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const unsigned long ACCESS_WRITE = ACCESS_BASIC |
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ACCESS_SET_VALUE |
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ACCESS_CREATE_SUB_KEY;
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const unsigned long ACCESS_ALL = ACCESS_READ |
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ACCESS_WRITE;
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const unsigned long WOW64_32 = 0x00000200;
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const unsigned long WOW64_64 = 0x00000100;
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/**
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* Values for the type of a registry value. The numeric values of these
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* constants are taken directly from WinNT.h in the MS Platform SDK.
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* The Microsoft documentation should be consulted for the exact meaning of
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* these value types.
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*
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* This interface is somewhat restricted to using only these value types.
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* There is no method that is directly equivalent to RegQueryValueEx or
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* RegSetValueEx. In particular, this interface does not support the
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* REG_MULTI_SZ and REG_EXPAND_SZ value types. It is still possible to
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* enumerate values that have other types (i.e., getValueType may return a
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* type not defined below).
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*/
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const unsigned long TYPE_NONE = 0; // REG_NONE
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const unsigned long TYPE_STRING = 1; // REG_SZ
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const unsigned long TYPE_BINARY = 3; // REG_BINARY
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const unsigned long TYPE_INT = 4; // REG_DWORD
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const unsigned long TYPE_INT64 = 11; // REG_QWORD
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/**
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* This attribute exposes the native HKEY and is available to provide C++
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* consumers with the flexibility of making other Windows registry API calls
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* that are not exposed via this interface.
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*
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* It is possible to initialize this object by setting an HKEY on it. In
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* that case, it is the responsibility of the consumer setting the HKEY to
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* ensure that it is a valid HKEY.
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*
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* WARNING: Setting the key does not close the old key.
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*/
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[noscript] attribute HKEY key;
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/**
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* This method closes the key. If the key is already closed, then this
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* method does nothing.
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*/
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void close();
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/**
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* This method opens an existing key. This method fails if the key
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* does not exist.
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*
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* NOTE: On 32-bit Windows, it is valid to pass any HKEY as the rootKey
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* parameter of this function. However, for compatibility with 64-bit
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* Windows, that usage should probably be avoided in favor of openChild.
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*
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* @param rootKey
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* A root key defined above or any valid HKEY on 32-bit Windows.
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* @param relPath
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* A relative path from the given root key.
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* @param mode
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* Access mode, which is a bit-wise OR of the ACCESS_ values defined
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* above.
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*/
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void open(in unsigned long rootKey, in AString relPath, in unsigned long mode);
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/**
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* This method opens an existing key or creates a new key.
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*
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* NOTE: On 32-bit Windows, it is valid to pass any HKEY as the rootKey
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* parameter of this function. However, for compatibility with 64-bit
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* Windows, that usage should probably be avoided in favor of createChild.
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*
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* @param rootKey
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* A root key defined above or any valid HKEY on 32-bit Windows.
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* @param relPath
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* A relative path from the given root key.
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* @param mode
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* Access mode, which is a bit-wise OR of the ACCESS_ values defined
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* above.
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*/
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void create(in unsigned long rootKey, in AString relPath, in unsigned long mode);
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/**
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* This method opens a subkey relative to this key. This method fails if the
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* key does not exist.
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*
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* @return nsIWindowsRegKey for the newly opened subkey.
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*/
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nsIWindowsRegKey openChild(in AString relPath, in unsigned long mode);
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/**
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* This method opens or creates a subkey relative to this key.
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*
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* @return nsIWindowsRegKey for the newly opened or created subkey.
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*/
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nsIWindowsRegKey createChild(in AString relPath, in unsigned long mode);
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/**
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* This attribute returns the number of child keys.
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*/
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readonly attribute unsigned long childCount;
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/**
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* This method returns the name of the n'th child key.
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*
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* @param index
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* The index of the requested child key.
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*/
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AString getChildName(in unsigned long index);
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/**
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* This method checks to see if the key has a child by the given name.
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*
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* @param name
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* The name of the requested child key.
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*/
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boolean hasChild(in AString name);
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/**
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* This attribute returns the number of values under this key.
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*/
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readonly attribute unsigned long valueCount;
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/**
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* This method returns the name of the n'th value under this key.
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*
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* @param index
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* The index of the requested value.
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*/
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AString getValueName(in unsigned long index);
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/**
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* This method checks to see if the key has a value by the given name.
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*
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* @param name
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* The name of the requested value.
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*/
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boolean hasValue(in AString name);
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/**
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* This method removes a child key and all of its values. This method will
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* fail if the key has any children of its own.
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*
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* @param relPath
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* The relative path from this key to the key to be removed.
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*/
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void removeChild(in AString relPath);
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/**
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* This method removes the value with the given name.
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*
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* @param name
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* The name of the value to be removed.
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*/
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void removeValue(in AString name);
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/**
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* This method returns the type of the value with the given name. The return
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* value is one of the "TYPE_" constants defined above.
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*
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* @param name
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* The name of the value to query.
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*/
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unsigned long getValueType(in AString name);
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/**
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* This method reads the string contents of the named value as a Unicode
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* string.
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*
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* @param name
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* The name of the value to query. This parameter can be the empty
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* string to request the key's default value.
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*/
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AString readStringValue(in AString name);
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/**
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* This method reads the integer contents of the named value.
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*
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* @param name
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* The name of the value to query.
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*/
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unsigned long readIntValue(in AString name);
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/**
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* This method reads the 64-bit integer contents of the named value.
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*
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* @param name
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* The name of the value to query.
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*/
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unsigned long long readInt64Value(in AString name);
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/**
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* This method reads the binary contents of the named value under this key.
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*
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* JavaScript callers should take care with the result of this method since
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* it will be byte-expanded to form a JS string. (The binary data will be
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* treated as an ISO-Latin-1 character string, which it is not).
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*
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* @param name
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* The name of the value to query.
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*/
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ACString readBinaryValue(in AString name);
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/**
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* This method writes the unicode string contents of the named value. The
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* value will be created if it does not already exist.
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*
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* @param name
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* The name of the value to modify. This parameter can be the empty
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* string to modify the key's default value.
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* @param data
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* The data for the value to modify.
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*/
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void writeStringValue(in AString name, in AString data);
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/**
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* This method writes the integer contents of the named value. The value
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* will be created if it does not already exist.
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*
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* @param name
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* The name of the value to modify.
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* @param data
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* The data for the value to modify.
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*/
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void writeIntValue(in AString name, in unsigned long data);
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/**
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* This method writes the 64-bit integer contents of the named value. The
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* value will be created if it does not already exist.
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*
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* @param name
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* The name of the value to modify.
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* @param data
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* The data for the value to modify.
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*/
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void writeInt64Value(in AString name, in unsigned long long data);
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/**
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* This method writes the binary contents of the named value. The value will
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* be created if it does not already exist.
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*
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* JavaScript callers should take care with the value passed to this method
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* since it will be truncated from a JS string (unicode) to a ISO-Latin-1
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* string. (The binary data will be treated as an ISO-Latin-1 character
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* string, which it is not). So, JavaScript callers should only pass
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* character values in the range \u0000 to \u00FF, or else data loss will
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* occur.
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*
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* @param name
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* The name of the value to modify.
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* @param data
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* The data for the value to modify.
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*/
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void writeBinaryValue(in AString name, in ACString data);
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/**
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* This method starts watching the key to see if any of its values have
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* changed. The key must have been opened with mode including ACCESS_NOTIFY.
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* If recurse is true, then this key and any of its descendant keys are
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* watched. Otherwise, only this key is watched.
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*
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* @param recurse
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* Indicates whether or not to also watch child keys.
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*/
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void startWatching(in boolean recurse);
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/**
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* This method stops any watching of the key initiated by a call to
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* startWatching. This method does nothing if the key is not being watched.
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*/
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void stopWatching();
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/**
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* This method returns true if the key is being watched for changes (i.e.,
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* if startWatching() was called).
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*/
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boolean isWatching();
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/**
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* This method returns true if the key has changed and false otherwise.
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* This method will always return false if startWatching was not called.
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*/
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boolean hasChanged();
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};
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