forked from mirrors/gecko-dev
129 lines
3.8 KiB
C++
129 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* vim:expandtab:shiftwidth=4:tabstop=4:
|
|
*/
|
|
/* 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/. */
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "nsIdleServiceGTK.h"
|
|
#include "nsIServiceManager.h"
|
|
#include "nsDebug.h"
|
|
#include "prlink.h"
|
|
#include "mozilla/Logging.h"
|
|
|
|
using mozilla::LogLevel;
|
|
|
|
static mozilla::LazyLogModule sIdleLog("nsIIdleService");
|
|
|
|
typedef bool (*_XScreenSaverQueryExtension_fn)(Display* dpy, int* event_base,
|
|
int* error_base);
|
|
|
|
typedef XScreenSaverInfo* (*_XScreenSaverAllocInfo_fn)(void);
|
|
|
|
typedef void (*_XScreenSaverQueryInfo_fn)(Display* dpy, Drawable drw,
|
|
XScreenSaverInfo *info);
|
|
|
|
static bool sInitialized = false;
|
|
static _XScreenSaverQueryExtension_fn _XSSQueryExtension = nullptr;
|
|
static _XScreenSaverAllocInfo_fn _XSSAllocInfo = nullptr;
|
|
static _XScreenSaverQueryInfo_fn _XSSQueryInfo = nullptr;
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceGTK, nsIdleService)
|
|
|
|
static void Initialize()
|
|
{
|
|
if (!GDK_IS_X11_DISPLAY(gdk_display_get_default()))
|
|
return;
|
|
|
|
// This will leak - See comments in ~nsIdleServiceGTK().
|
|
PRLibrary* xsslib = PR_LoadLibrary("libXss.so.1");
|
|
if (!xsslib) // ouch.
|
|
{
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("Failed to find libXss.so!\n"));
|
|
return;
|
|
}
|
|
|
|
_XSSQueryExtension = (_XScreenSaverQueryExtension_fn)
|
|
PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryExtension");
|
|
_XSSAllocInfo = (_XScreenSaverAllocInfo_fn)
|
|
PR_FindFunctionSymbol(xsslib, "XScreenSaverAllocInfo");
|
|
_XSSQueryInfo = (_XScreenSaverQueryInfo_fn)
|
|
PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryInfo");
|
|
|
|
if (!_XSSQueryExtension)
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("Failed to get XSSQueryExtension!\n"));
|
|
if (!_XSSAllocInfo)
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("Failed to get XSSAllocInfo!\n"));
|
|
if (!_XSSQueryInfo)
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("Failed to get XSSQueryInfo!\n"));
|
|
|
|
sInitialized = true;
|
|
}
|
|
|
|
nsIdleServiceGTK::nsIdleServiceGTK()
|
|
: mXssInfo(nullptr)
|
|
{
|
|
Initialize();
|
|
}
|
|
|
|
nsIdleServiceGTK::~nsIdleServiceGTK()
|
|
{
|
|
if (mXssInfo)
|
|
XFree(mXssInfo);
|
|
|
|
// It is not safe to unload libXScrnSaver until each display is closed because
|
|
// the library registers callbacks through XESetCloseDisplay (Bug 397607).
|
|
// (Also the library and its functions are scoped for the file not the object.)
|
|
#if 0
|
|
if (xsslib) {
|
|
PR_UnloadLibrary(xsslib);
|
|
xsslib = nullptr;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
nsIdleServiceGTK::PollIdleTime(uint32_t *aIdleTime)
|
|
{
|
|
if (!sInitialized) {
|
|
// For some reason, we could not find xscreensaver.
|
|
return false;
|
|
}
|
|
|
|
// Ask xscreensaver about idle time:
|
|
*aIdleTime = 0;
|
|
|
|
// We might not have a display (cf. in xpcshell)
|
|
Display *dplay = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
|
|
if (!dplay) {
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("No display found!\n"));
|
|
return false;
|
|
}
|
|
|
|
if (!_XSSQueryExtension || !_XSSAllocInfo || !_XSSQueryInfo) {
|
|
return false;
|
|
}
|
|
|
|
int event_base, error_base;
|
|
if (_XSSQueryExtension(dplay, &event_base, &error_base))
|
|
{
|
|
if (!mXssInfo)
|
|
mXssInfo = _XSSAllocInfo();
|
|
if (!mXssInfo)
|
|
return false;
|
|
_XSSQueryInfo(dplay, GDK_ROOT_WINDOW(), mXssInfo);
|
|
*aIdleTime = mXssInfo->idle;
|
|
return true;
|
|
}
|
|
// If we get here, we couldn't get to XScreenSaver:
|
|
MOZ_LOG(sIdleLog, LogLevel::Warning, ("XSSQueryExtension returned false!\n"));
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
nsIdleServiceGTK::UsePollMode()
|
|
{
|
|
return sInitialized;
|
|
}
|