89becff57d
Backed out changeset d68dcf2ef372 (bug 1165515) Backed out changeset 7c3b45a47811 (bug 1165515) Backed out changeset b668b617bef2 (bug 1165515) Backed out changeset d0916e1283a2 (bug 1165515) Backed out changeset ac4dc7489942 (bug 1165515) Backed out changeset e9632ce8bc65 (bug 1165515) Backed out changeset c16d215cc7e4 (bug 1165515) Backed out changeset e4d474f3c51a (bug 1165515) Backed out changeset d87680bf9f7c (bug 1165515) Backed out changeset b3c0a45ba99e (bug 1165515) Backed out changeset 9370fa197674 (bug 1165515) Backed out changeset 50970d668ca1 (bug 1165515) Backed out changeset ffa4eb6d24b9 (bug 1165515) Backed out changeset 5fcf1203cc1d (bug 1165515)
131 lines
3.8 KiB
C++
131 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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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 <gtk/gtk.h>
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#include "nsIdleServiceGTK.h"
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#include "nsIServiceManager.h"
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#include "nsDebug.h"
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#include "prlink.h"
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#include "mozilla/Logging.h"
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static PRLogModuleInfo* sIdleLog = nullptr;
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typedef bool (*_XScreenSaverQueryExtension_fn)(Display* dpy, int* event_base,
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int* error_base);
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typedef XScreenSaverInfo* (*_XScreenSaverAllocInfo_fn)(void);
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typedef void (*_XScreenSaverQueryInfo_fn)(Display* dpy, Drawable drw,
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XScreenSaverInfo *info);
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static bool sInitialized = false;
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static _XScreenSaverQueryExtension_fn _XSSQueryExtension = nullptr;
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static _XScreenSaverAllocInfo_fn _XSSAllocInfo = nullptr;
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static _XScreenSaverQueryInfo_fn _XSSQueryInfo = nullptr;
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NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceGTK, nsIdleService)
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static void Initialize()
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{
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if (!GDK_IS_X11_DISPLAY(gdk_display_get_default()))
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return;
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// This will leak - See comments in ~nsIdleServiceGTK().
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PRLibrary* xsslib = PR_LoadLibrary("libXss.so.1");
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if (!xsslib) // ouch.
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{
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("Failed to find libXss.so!\n"));
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return;
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}
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_XSSQueryExtension = (_XScreenSaverQueryExtension_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryExtension");
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_XSSAllocInfo = (_XScreenSaverAllocInfo_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverAllocInfo");
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_XSSQueryInfo = (_XScreenSaverQueryInfo_fn)
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PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryInfo");
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if (!_XSSQueryExtension)
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("Failed to get XSSQueryExtension!\n"));
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if (!_XSSAllocInfo)
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("Failed to get XSSAllocInfo!\n"));
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if (!_XSSQueryInfo)
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("Failed to get XSSQueryInfo!\n"));
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sInitialized = true;
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}
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nsIdleServiceGTK::nsIdleServiceGTK()
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: mXssInfo(nullptr)
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{
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if (!sIdleLog)
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sIdleLog = PR_NewLogModule("nsIIdleService");
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Initialize();
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}
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nsIdleServiceGTK::~nsIdleServiceGTK()
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{
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if (mXssInfo)
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XFree(mXssInfo);
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// It is not safe to unload libXScrnSaver until each display is closed because
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// the library registers callbacks through XESetCloseDisplay (Bug 397607).
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// (Also the library and its functions are scoped for the file not the object.)
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#if 0
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if (xsslib) {
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PR_UnloadLibrary(xsslib);
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xsslib = nullptr;
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}
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#endif
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}
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bool
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nsIdleServiceGTK::PollIdleTime(uint32_t *aIdleTime)
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{
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if (!sInitialized) {
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// For some reason, we could not find xscreensaver.
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return false;
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}
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// Ask xscreensaver about idle time:
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*aIdleTime = 0;
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// We might not have a display (cf. in xpcshell)
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Display *dplay = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
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if (!dplay) {
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("No display found!\n"));
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return false;
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}
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if (!_XSSQueryExtension || !_XSSAllocInfo || !_XSSQueryInfo) {
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return false;
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}
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int event_base, error_base;
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if (_XSSQueryExtension(dplay, &event_base, &error_base))
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{
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if (!mXssInfo)
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mXssInfo = _XSSAllocInfo();
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if (!mXssInfo)
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return false;
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_XSSQueryInfo(dplay, GDK_ROOT_WINDOW(), mXssInfo);
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*aIdleTime = mXssInfo->idle;
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return true;
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}
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// If we get here, we couldn't get to XScreenSaver:
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MOZ_LOG(sIdleLog, PR_LOG_WARNING, ("XSSQueryExtension returned false!\n"));
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return false;
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}
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bool
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nsIdleServiceGTK::UsePollMode()
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{
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return sInitialized;
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}
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