pjs/xpfe/components/winhooks/nsWindowsHooksUtil.h

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9.8 KiB
C

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bill Law <law@netscape.com>
* Dean Tessman <dean_tessman@hotmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include <windows.h>
// Where Mozilla stores its own registry values.
const char * const mozillaKeyName = "Software\\Mozilla\\Desktop";
static const char shortcutSuffix[] = " -url \"%1\"";
static const char chromeSuffix[] = " -chrome \"%1\"";
static const char iconSuffix[] = ",0";
// Returns the (fully-qualified) name of this executable.
static nsCString thisApplication() {
static nsCAutoString result;
if ( result.IsEmpty() ) {
char buffer[MAX_PATH] = { 0 };
DWORD len = ::GetModuleFileName( NULL, buffer, sizeof buffer );
len = ::GetShortPathName( buffer, buffer, sizeof buffer );
result = buffer;
ToUpperCase(result);
}
return result;
}
// Returns the "short" name of this application (in upper case). This is for
// use as a StartMenuInternet value.
static nsCString shortAppName() {
static nsCAutoString result;
if ( result.IsEmpty() ) {
// Find last backslash in thisApplication().
nsCAutoString thisApp( thisApplication() );
PRInt32 n = thisApp.RFind( "\\" );
if ( n != kNotFound ) {
// Use what comes after the last backslash.
result = (const char*)thisApp.get() + n + 1;
} else {
// Use entire string.
result = thisApp;
}
}
return result;
}
// RegistryEntry
//
// Generic registry entry (no saving of previous values). Each is comprised of:
// o A base HKEY
// o A subkey name.
// o An optional value name (empty for the "default" value).
// o The registry setting we'd like this entry to have when set.
struct RegistryEntry {
HKEY baseKey; // e.g., HKEY_CURRENT_USER
PRBool isNull; // i.e., should use ::RegDeleteValue
nsCString keyName; // Key name.
nsCString valueName; // Value name (can be empty, which implies NULL).
nsCString setting; // What we set it to (UTF-8). This had better be
// nsString to avoid extra string copies, but
// this code is not performance-critical.
RegistryEntry( HKEY baseKey, const char* keyName, const char* valueName, const char* setting )
: baseKey( baseKey ), isNull( setting == 0 ), keyName( keyName ), valueName( valueName ), setting( setting ? setting : "" ) {
}
PRBool isAlreadySet() const;
nsresult set();
nsresult reset();
nsCString currentSetting( PRBool *currentUndefined = 0 ) const;
// Return value name in proper form for passing to ::Reg functions
// (i.e., emptry string is converted to a NULL pointer).
const char* valueNameArg() const {
return valueName.IsEmpty() ? NULL : valueName.get();
}
nsCString fullName() const;
};
// BoolRegistryEntry
//
// These are used to store the "windows integration" preferences.
// You can query the value via operator void* (i.e., if ( boolPref )... ).
// These are stored under HKEY_LOCAL_MACHINE\Software\Mozilla\Desktop.
// Set sets the stored value to "1". Reset deletes it (which implies 0).
struct BoolRegistryEntry : public RegistryEntry {
BoolRegistryEntry( const char *name )
: RegistryEntry( HKEY_LOCAL_MACHINE, mozillaKeyName, name, "1" ) {
}
operator PRBool();
};
// SavedRegistryEntry
//
// Like a plain RegistryEntry, but set/reset save/restore the
// it had before we set it.
struct SavedRegistryEntry : public RegistryEntry {
SavedRegistryEntry( HKEY baseKey, const char *keyName, const char *valueName, const char *setting )
: RegistryEntry( baseKey, keyName, valueName, setting ) {
}
nsresult set();
nsresult reset();
};
// ProtocolRegistryEntry
//
// For setting entries for a given Internet Shortcut protocol.
// The key name is calculated as
// HKEY_LOCAL_MACHINE\Software\Classes\protocol\shell\open\command.
// The setting is this executable (with appropriate suffix).
// Set/reset are trickier in this case.
struct ProtocolRegistryEntry : public SavedRegistryEntry {
nsCString protocol;
ProtocolRegistryEntry( const char* protocol )
: SavedRegistryEntry( HKEY_LOCAL_MACHINE, "", "", thisApplication().get() ),
protocol( protocol ) {
keyName = "Software\\Classes\\";
keyName += protocol;
keyName += "\\shell\\open\\command";
// Append appropriate suffix to setting.
if ( this->protocol.Equals( "chrome" ) || this->protocol.Equals( "MozillaXUL" ) ) {
// Use "-chrome" command line flag.
setting += chromeSuffix;
} else {
// Use standard "-url" command line flag.
setting += shortcutSuffix;
}
}
nsresult set();
nsresult reset();
};
// ProtocolIconRegistryEntry
//
// For setting icon entries for a given Internet Shortcut protocol.
// The key name is calculated as
// HKEY_LOCAL_MACHINE\Software\Classes\protocol\DefaultIcon.
// The setting is this executable (with appropriate suffix).
struct ProtocolIconRegistryEntry : public SavedRegistryEntry {
nsCString protocol;
ProtocolIconRegistryEntry( const char* aprotocol )
: SavedRegistryEntry( HKEY_LOCAL_MACHINE, "", "", thisApplication().get() ),
protocol( aprotocol ) {
keyName = NS_LITERAL_CSTRING("Software\\Classes\\") + protocol + NS_LITERAL_CSTRING("\\DefaultIcon");
// Append appropriate suffix to setting.
setting += iconSuffix;
}
};
// DDERegistryEntry
//
// Like a protocol registry entry, but for the shell\open\ddeexec subkey.
//
// We need to remove this subkey entirely to ensure we work properly with
// various programs on various platforms (see Bugzilla bugs 59078, 58770, etc.).
//
// We don't try to save everything, though. We do save the known useful info
// under the ddeexec subkey:
// ddeexec\@
// ddeexec\NoActivateHandler
// ddeexec\Application\@
// ddeexec\Topic\@
//
// set/reset save/restore these values and remove/restore the ddeexec subkey
struct DDERegistryEntry : public SavedRegistryEntry {
DDERegistryEntry( const char *protocol )
: SavedRegistryEntry( HKEY_LOCAL_MACHINE, "", "", 0 ),
activate( HKEY_LOCAL_MACHINE, "", "NoActivateHandler", 0 ),
app( HKEY_LOCAL_MACHINE, "", "", 0 ),
topic( HKEY_LOCAL_MACHINE, "", "", 0 ) {
// Derive keyName from protocol.
keyName = "Software\\Classes\\";
keyName += protocol;
keyName += "\\shell\\open\\ddeexec";
// Set subkey names.
activate.keyName = keyName;
app.keyName = keyName;
app.keyName += "\\Application";
topic.keyName = keyName;
topic.keyName += "\\Topic";
}
nsresult set();
nsresult reset();
SavedRegistryEntry activate, app, topic;
};
// FileTypeRegistryEntry
//
// For setting entries relating to a file extension (or extensions).
// This object itself is for the "file type" associated with the extension.
// Set/reset manage the mapping from extension to the file type, as well.
// The description is taken from defDescKey if available. Otherwise desc
// is used.
struct FileTypeRegistryEntry : public ProtocolRegistryEntry {
nsCString fileType;
const char **ext;
nsCString desc;
nsCString defDescKey;
nsCString iconFile;
FileTypeRegistryEntry ( const char **ext, const char *fileType,
const char *desc, const char *defDescKey, const char *iconFile )
: ProtocolRegistryEntry( fileType ),
fileType( fileType ),
ext( ext ),
desc( desc ),
defDescKey(defDescKey),
iconFile(iconFile) {
}
nsresult set();
nsresult reset();
};
// EditableFileTypeRegistryEntry
//
// Extends FileTypeRegistryEntry by setting an additional handler for an "edit" command.
struct EditableFileTypeRegistryEntry : public FileTypeRegistryEntry {
EditableFileTypeRegistryEntry( const char **ext, const char *fileType,
const char *desc, const char *defDescKey, const char *iconFile )
: FileTypeRegistryEntry( ext, fileType, desc, defDescKey, iconFile ) {
}
nsresult set();
};