xpcom/build/nsXULAppAPI.h
author Andreea Pavel <apavel@mozilla.com>
Fri, 11 Jan 2019 17:02:44 +0200
changeset 453480 3f76ed638d83ade10f10cfecd2919936335a4aea
parent 453470 4e94bbb9031517d9953adc24b6ff5646600df028
child 453535 c083f11eb58d510309b4e85578609dc8c2c7c902
permissions -rw-r--r--
Backed out 10 changesets (bug 1513057) for build bustages on a CLOSED TREE Backed out changeset 56329b5f1844 (bug 1513057) Backed out changeset 46411c5de3da (bug 1513057) Backed out changeset de65c456aad6 (bug 1513057) Backed out changeset f648b5f1a7c2 (bug 1513057) Backed out changeset 460bbf0849e1 (bug 1513057) Backed out changeset 86032a14d26f (bug 1513057) Backed out changeset a81f83df08d5 (bug 1513057) Backed out changeset edbda5ee5fd5 (bug 1513057) Backed out changeset c900ac2519f5 (bug 1513057) Backed out changeset 4e94bbb90315 (bug 1513057)

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef _nsXULAppAPI_h__
#define _nsXULAppAPI_h__

#include "nsID.h"
#include "xrecore.h"
#include "nsXPCOM.h"
#include "nsISupports.h"
#include "mozilla/Logging.h"
#include "mozilla/XREAppData.h"
#include "js/TypeDecls.h"

#include "mozilla/ArrayUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/Vector.h"
#include "mozilla/TimeStamp.h"
#include "XREChildData.h"
#include "XREShellData.h"

#if defined(MOZ_WIDGET_ANDROID)
#include <jni.h>
#endif

/**
 * A directory service key which provides the platform-correct "application
 * data" directory as follows, where $name and $vendor are as defined above and
 * $vendor is optional:
 *
 * Windows:
 *   HOME = Documents and Settings\$USER\Application Data
 *   UAppData = $HOME[\$vendor]\$name
 *
 * Unix:
 *   HOME = ~
 *   UAppData = $HOME/.[$vendor/]$name
 *
 * Mac:
 *   HOME = ~
 *   UAppData = $HOME/Library/Application Support/$name
 *
 * Note that the "profile" member above will change the value of UAppData as
 * follows:
 *
 * Windows:
 *   UAppData = $HOME\$profile
 *
 * Unix:
 *   UAppData = $HOME/.$profile
 *
 * Mac:
 *   UAppData = $HOME/Library/Application Support/$profile
 */
#define XRE_USER_APP_DATA_DIR "UAppData"

/**
 * A directory service key which provides a list of all enabled extension
 * directories and files (packed XPIs).  The list includes compatible
 * platform-specific extension subdirectories.
 *
 * @note The directory list will have no members when the application is
 *       launched in safe mode.
 */
#define XRE_EXTENSIONS_DIR_LIST "XREExtDL"

/**
 * A directory service key which provides the executable file used to
 * launch the current process.  This is the same value returned by the
 * XRE_GetBinaryPath function defined below.
 */
#define XRE_EXECUTABLE_FILE "XREExeF"

/**
 * A directory service key which specifies the profile
 * directory. Unlike the NS_APP_USER_PROFILE_50_DIR key, this key may
 * be available when the profile hasn't been "started", or after is
 * has been shut down. If the application is running without a
 * profile, such as when showing the profile manager UI, this key will
 * not be available. This key is provided by the XUL apprunner or by
 * the aAppDirProvider object passed to XRE_InitEmbedding.
 */
#define NS_APP_PROFILE_DIR_STARTUP "ProfDS"

/**
 * A directory service key which specifies the profile
 * directory. Unlike the NS_APP_USER_PROFILE_LOCAL_50_DIR key, this key may
 * be available when the profile hasn't been "started", or after is
 * has been shut down. If the application is running without a
 * profile, such as when showing the profile manager UI, this key will
 * not be available. This key is provided by the XUL apprunner or by
 * the aAppDirProvider object passed to XRE_InitEmbedding.
 */
#define NS_APP_PROFILE_LOCAL_DIR_STARTUP "ProfLDS"

/**
 * A directory service key which specifies the system extension
 * parent directory containing platform-specific extensions.
 * This key may not be available on all platforms.
 */
#define XRE_SYS_LOCAL_EXTENSION_PARENT_DIR "XRESysLExtPD"

/**
 * A directory service key which specifies the system extension
 * parent directory containing platform-independent extensions.
 * This key may not be available on all platforms.
 * Additionally, the directory may be equal to that returned by
 * XRE_SYS_LOCAL_EXTENSION_PARENT_DIR on some platforms.
 */
#define XRE_SYS_SHARE_EXTENSION_PARENT_DIR "XRESysSExtPD"

#if defined(XP_UNIX) || defined(XP_MACOSX)
/**
 * Directory service keys for the system-wide and user-specific
 * directories where native manifests used by the WebExtensions
 * native messaging and managed storage features are found.
 */
#define XRE_SYS_NATIVE_MANIFESTS "XRESysNativeManifests"
#define XRE_USER_NATIVE_MANIFESTS "XREUserNativeManifests"
#endif

/**
 * A directory service key which specifies the user system extension
 * parent directory.
 */
#define XRE_USER_SYS_EXTENSION_DIR "XREUSysExt"

/**
 * A directory service key which specifies a directory where temporary
 * system extensions can be loaded from during development.
 */
#define XRE_USER_SYS_EXTENSION_DEV_DIR "XRESysExtDev"

/**
 * A directory service key which specifies the distribution specific files for
 * the application.
 */
#define XRE_APP_DISTRIBUTION_DIR "XREAppDist"

/**
 * A directory service key which specifies the location for system add-ons.
 */
#define XRE_APP_FEATURES_DIR "XREAppFeat"

/**
 * A directory service key which specifies the location for app dir add-ons.
 * Should be a synonym for XCurProcD everywhere except in tests.
 */
#define XRE_ADDON_APP_DIR "XREAddonAppDir"

/**
 * A directory service key which provides the update directory. Callers should
 * fall back to appDir.
 * Windows:    If vendor name exists:
 *             ProgramData\<vendor name>\updates\
 *             <hash of the path to XRE_EXECUTABLE_FILE's parent directory>
 *
 *             If vendor name doesn't exist, but product name exists:
 *             ProgramData\<product name>\updates\
 *             <hash of the path to XRE_EXECUTABLE_FILE's parent directory>
 *
 *             If neither vendor nor product name exists:
 *             ProgramData\Mozilla\updates
 *
 * Mac:        ~/Library/Caches/Mozilla/updates/<absolute path to app dir>
 *
 * All others: Parent directory of XRE_EXECUTABLE_FILE.
 */
#define XRE_UPDATE_ROOT_DIR "UpdRootD"

/**
 * A directory service key which provides the *old* update directory. This
 * path should only be used when data needs to be migrated from the old update
 * directory.
 * Windows:    If vendor name exists:
 *             Documents and Settings\<User>\Local Settings\Application Data\
 *             <vendor name>\updates\
 *             <hash of the path to XRE_EXECUTABLE_FILE's parent directory>
 *
 *             If vendor name doesn't exist, but product name exists:
 *             Documents and Settings\<User>\Local Settings\Application Data\
 *             <product name>\updates\
 *             <hash of the path to XRE_EXECUTABLE_FILE's parent directory>
 *
 *             If neither vendor nor product name exists:
 *             Documents and Settings\<User>\Local Settings\Application Data\
 *             Mozilla\updates
 *
 * This path does not exist on other operating systems
 */
#define XRE_OLD_UPDATE_ROOT_DIR "OldUpdRootD"

/**
 * Begin an XUL application. Does not return until the user exits the
 * application.
 *
 * @param argc/argv Command-line parameters to pass to the application. On
 *                  Windows, these should be in UTF8. On unix-like platforms
 *                  these are in the "native" character set.
 *
 * @param aConfig  Information about the application to be run.
 *
 * @return         A native result code suitable for returning from main().
 *
 * @note           If the binary is linked against the standalone XPCOM glue,
 *                 XPCOMGlueStartup() should be called before this method.
 */
namespace mozilla {
struct BootstrapConfig;
}
XRE_API(int, XRE_main,
        (int argc, char* argv[], const mozilla::BootstrapConfig& aConfig))

/**
 * Given a path relative to the current working directory (or an absolute
 * path), return an appropriate nsIFile object.
 *
 * @note Pass UTF8 strings on Windows... native charset on other platforms.
 */
XRE_API(nsresult, XRE_GetFileFromPath, (const char* aPath, nsIFile** aResult))

/**
 * Get the path of the running application binary and store it in aResult.
 */
XRE_API(nsresult, XRE_GetBinaryPath, (nsIFile * *aResult))

/**
 * Get the static module built in to libxul.
 */
XRE_API(const mozilla::Module*, XRE_GetStaticModule, ())

/**
 * Lock a profile directory using platform-specific semantics.
 *
 * @param aDirectory  The profile directory to lock.
 * @param aLockObject An opaque lock object. The directory will remain locked
 *                    as long as the XPCOM reference is held.
 */
XRE_API(nsresult, XRE_LockProfileDirectory,
        (nsIFile * aDirectory, nsISupports** aLockObject))

/**
 * Initialize libXUL for embedding purposes.
 *
 * @param aLibXULDirectory   The directory in which the libXUL shared library
 *                           was found.
 * @param aAppDirectory      The directory in which the application components
 *                           and resources can be found. This will map to
 *                           the NS_OS_CURRENT_PROCESS_DIR directory service
 *                           key.
 * @param aAppDirProvider    A directory provider for the application. This
 *                           provider will be aggregated by a libxul provider
 *                           which will provide the base required GRE keys.
 *
 * @note This function must be called from the "main" thread.
 *
 * @note At the present time, this function may only be called once in
 * a given process. Use XRE_TermEmbedding to clean up and free
 * resources allocated by XRE_InitEmbedding.
 */

XRE_API(nsresult, XRE_InitEmbedding2,
        (nsIFile * aLibXULDirectory, nsIFile* aAppDirectory,
         nsIDirectoryServiceProvider* aAppDirProvider))

/**
 * Register static XPCOM component information.
 * This method may be called at any time before or after XRE_main or
 * XRE_InitEmbedding.
 */
XRE_API(nsresult, XRE_AddStaticComponent, (const mozilla::Module* aComponent))

/**
 * Register XPCOM components found in an array of files/directories.
 * This method may be called at any time before or after XRE_main or
 * XRE_InitEmbedding.
 *
 * @param aFiles An array of files or directories.
 * @param aFileCount the number of items in the aFiles array.
 * @note appdir/components is registered automatically.
 *
 * NS_APP_LOCATION specifies a location to search for binary XPCOM
 * components as well as component/chrome manifest files.
 *
 * NS_EXTENSION_LOCATION excludes binary XPCOM components but allows other
 * manifest instructions.
 *
 * NS_SKIN_LOCATION specifies a location to search for chrome manifest files
 * which are only allowed to register skin packages.
 */
enum NSLocationType {
  NS_APP_LOCATION,
  NS_EXTENSION_LOCATION,
  NS_SKIN_LOCATION,
  NS_BOOTSTRAPPED_LOCATION
};

XRE_API(nsresult, XRE_AddManifestLocation,
        (NSLocationType aType, nsIFile* aLocation))

/**
 * Register XPCOM components found in a JAR.
 * This is similar to XRE_AddManifestLocation except the file specified
 * must be a zip archive with a manifest named chrome.manifest
 * This method may be called at any time before or after XRE_main or
 * XRE_InitEmbedding.
 *
 * @param aFiles An array of files or directories.
 * @param aFileCount the number of items in the aFiles array.
 * @note appdir/components is registered automatically.
 *
 * NS_COMPONENT_LOCATION specifies a location to search for binary XPCOM
 * components as well as component/chrome manifest files.
 *
 * NS_SKIN_LOCATION specifies a location to search for chrome manifest files
 * which are only allowed to register skin packages.
 */
XRE_API(nsresult, XRE_AddJarManifestLocation,
        (NSLocationType aType, nsIFile* aLocation))

/**
 * Fire notifications to inform the toolkit about a new profile. This
 * method should be called after XRE_InitEmbedding if the embedder
 * wishes to run with a profile. Normally the embedder should call
 * XRE_LockProfileDirectory to lock the directory before calling this
 * method.
 *
 * @note There are two possibilities for selecting a profile:
 *
 * 1) Select the profile before calling XRE_InitEmbedding. The aAppDirProvider
 *    object passed to XRE_InitEmbedding should provide the
 *    NS_APP_USER_PROFILE_50_DIR key, and may also provide the following keys:
 *    - NS_APP_USER_PROFILE_LOCAL_50_DIR
 *    - NS_APP_PROFILE_DIR_STARTUP
 *    - NS_APP_PROFILE_LOCAL_DIR_STARTUP
 *    In this scenario XRE_NotifyProfile should be called immediately after
 *    XRE_InitEmbedding. Component registration information will be stored in
 *    the profile and JS components may be stored in the fastload cache.
 *
 * 2) Select a profile some time after calling XRE_InitEmbedding. In this case
 *    the embedder must install a directory service provider which provides
 *    NS_APP_USER_PROFILE_50_DIR and optionally
 *    NS_APP_USER_PROFILE_LOCAL_50_DIR. Component registration information
 *    will be stored in the application directory and JS components will not
 *    fastload.
 */
XRE_API(void, XRE_NotifyProfile, ())

/**
 * Terminate embedding started with XRE_InitEmbedding or XRE_InitEmbedding2
 */
XRE_API(void, XRE_TermEmbedding, ())

/**
 * Parse an INI file (application.ini or override.ini) into an existing
 * nsXREAppData structure.
 *
 * @param aINIFile The INI file to parse
 * @param aAppData The nsXREAppData structure to fill.
 */
XRE_API(nsresult, XRE_ParseAppData,
        (nsIFile * aINIFile, mozilla::XREAppData& aAppData))

enum GeckoProcessType {
#define GECKO_PROCESS_TYPE(enum_name, string_name, xre_name) \
  GeckoProcessType_##enum_name,
#include "mozilla/GeckoProcessTypes.h"
#undef GECKO_PROCESS_TYPE
  GeckoProcessType_End,
  GeckoProcessType_Invalid = GeckoProcessType_End
};

static const char* const kGeckoProcessTypeString[] = {
#define GECKO_PROCESS_TYPE(enum_name, string_name, xre_name) \
  string_name,
#include "mozilla/GeckoProcessTypes.h"
#undef GECKO_PROCESS_TYPE
};

static_assert(MOZ_ARRAY_LENGTH(kGeckoProcessTypeString) == GeckoProcessType_End,
              "Array length mismatch");

XRE_API(const char*, XRE_ChildProcessTypeToString,
        (GeckoProcessType aProcessType))

#if defined(MOZ_WIDGET_ANDROID)
struct XRE_AndroidChildFds {
  int mPrefsFd;
  int mPrefMapFd;
  int mIpcFd;
  int mCrashFd;
  int mCrashAnnotationFd;
};

XRE_API(void, XRE_SetAndroidChildFds,
        (JNIEnv * env, const XRE_AndroidChildFds& fds))
#endif  // defined(MOZ_WIDGET_ANDROID)

XRE_API(void, XRE_SetProcessType, (const char* aProcessTypeString))

// Used in the "master" parent process hosting the crash server
XRE_API(bool, XRE_TakeMinidumpForChild,
        (uint32_t aChildPid, nsIFile** aDump, uint32_t* aSequence))

// Used in child processes.
#if defined(XP_WIN)
// Uses uintptr_t, even though it's really a HANDLE, because including
// <windows.h> here caused compilation issues.
XRE_API(bool, XRE_SetRemoteExceptionHandler,
        (const char* aPipe, uintptr_t aCrashTimeAnnotationFile))
#else
XRE_API(bool, XRE_SetRemoteExceptionHandler, (const char* aPipe))
#endif

namespace mozilla {
namespace gmp {
class GMPLoader;
}  // namespace gmp
}  // namespace mozilla

XRE_API(nsresult, XRE_InitChildProcess,
        (int aArgc, char* aArgv[], const XREChildData* aChildData))

XRE_API(GeckoProcessType, XRE_GetProcessType, ())

/**
 * Returns true when called in the e10s parent process.  Does *NOT* return true
 * when called in the main process if e10s is disabled.
 */
XRE_API(bool, XRE_IsE10sParentProcess, ())

/**
 * Defines XRE_IsParentProcess, XRE_IsContentProcess, etc.
 *
 * XRE_IsParentProcess is unique in that it returns true when called in
 * the e10s parent process or called in the main process when e10s is
 * disabled.
 */
#define GECKO_PROCESS_TYPE(enum_name, string_name, xre_name) \
  XRE_API(bool, XRE_Is##xre_name##Process, ())
#include "mozilla/GeckoProcessTypes.h"
#undef GECKO_PROCESS_TYPE

/**
 * Returns true if the appshell should run its own native event loop. Returns
 * false if we should rely solely on the Gecko event loop.
 */
XRE_API(bool, XRE_UseNativeEventProcessing, ())

typedef void (*MainFunction)(void* aData);

XRE_API(nsresult, XRE_InitParentProcess,
        (int aArgc, char* aArgv[], MainFunction aMainFunction,
         void* aMainFunctionExtraData))

XRE_API(int, XRE_RunIPDLTest, (int aArgc, char* aArgv[]))

XRE_API(nsresult, XRE_RunAppShell, ())

XRE_API(nsresult, XRE_InitCommandLine, (int aArgc, char* aArgv[]))

XRE_API(nsresult, XRE_DeinitCommandLine, ())

class MessageLoop;

XRE_API(void, XRE_ShutdownChildProcess, ())

XRE_API(MessageLoop*, XRE_GetIOMessageLoop, ())

XRE_API(bool, XRE_SendTestShellCommand,
        (JSContext * aCx, JSString* aCommand, JS::Value* aCallback))
XRE_API(bool, XRE_ShutdownTestShell, ())

XRE_API(void, XRE_InstallX11ErrorHandler, ())

XRE_API(void, XRE_TelemetryAccumulate, (int aID, uint32_t aSample))

XRE_API(void, XRE_StartupTimelineRecord, (int aEvent, mozilla::TimeStamp aWhen))

XRE_API(void, XRE_InitOmnijar, (nsIFile * aGreOmni, nsIFile* aAppOmni))
XRE_API(void, XRE_StopLateWriteChecks, (void))

XRE_API(void, XRE_EnableSameExecutableForContentProc, ())

XRE_API(int, XRE_XPCShellMain,
        (int argc, char** argv, char** envp, const XREShellData* aShellData))

#ifdef LIBFUZZER
#include "FuzzerRegistry.h"

XRE_API(void, XRE_LibFuzzerSetDriver, (LibFuzzerDriver))

#endif  // LIBFUZZER

#endif  // _nsXULAppAPI_h__