The Tor Browser / file comparison
comparison: widget/qt/nsIdleServiceQt.cpp
widget/qt/nsIdleServiceQt.cpp
- changeset 0
- 6474c204b198
equal
deleted
inserted
replaced
| -1:000000000000 | 0:fa7cfda1008d |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* vim:expandtab:shiftwidth=4:tabstop=4: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #ifdef MOZ_X11 | |
| 9 #include "mozilla/X11Util.h" | |
| 10 #endif | |
| 11 #include "nsIdleServiceQt.h" | |
| 12 #include "nsIServiceManager.h" | |
| 13 #include "nsDebug.h" | |
| 14 #include "prlink.h" | |
| 15 | |
| 16 #if defined(MOZ_X11) | |
| 17 typedef bool (*_XScreenSaverQueryExtension_fn)(Display* dpy, int* event_base, | |
| 18 int* error_base); | |
| 19 | |
| 20 typedef XScreenSaverInfo* (*_XScreenSaverAllocInfo_fn)(void); | |
| 21 | |
| 22 typedef void (*_XScreenSaverQueryInfo_fn)(Display* dpy, Drawable drw, | |
| 23 XScreenSaverInfo *info); | |
| 24 | |
| 25 static _XScreenSaverQueryExtension_fn _XSSQueryExtension = nullptr; | |
| 26 static _XScreenSaverAllocInfo_fn _XSSAllocInfo = nullptr; | |
| 27 static _XScreenSaverQueryInfo_fn _XSSQueryInfo = nullptr; | |
| 28 #endif | |
| 29 | |
| 30 static bool sInitialized = false; | |
| 31 | |
| 32 NS_IMPL_ISUPPORTS_INHERITED0(nsIdleServiceQt, nsIdleService) | |
| 33 | |
| 34 nsIdleServiceQt::nsIdleServiceQt() | |
| 35 #if defined(MOZ_X11) | |
| 36 : mXssInfo(nullptr) | |
| 37 #endif | |
| 38 { | |
| 39 } | |
| 40 | |
| 41 static void Initialize() | |
| 42 { | |
| 43 sInitialized = true; | |
| 44 | |
| 45 #if defined(MOZ_X11) | |
| 46 // This will leak - See comments in ~nsIdleServiceQt(). | |
| 47 PRLibrary* xsslib = PR_LoadLibrary("libXss.so.1"); | |
| 48 if (!xsslib) { | |
| 49 return; | |
| 50 } | |
| 51 | |
| 52 _XSSQueryExtension = (_XScreenSaverQueryExtension_fn) | |
| 53 PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryExtension"); | |
| 54 _XSSAllocInfo = (_XScreenSaverAllocInfo_fn) | |
| 55 PR_FindFunctionSymbol(xsslib, "XScreenSaverAllocInfo"); | |
| 56 _XSSQueryInfo = (_XScreenSaverQueryInfo_fn) | |
| 57 PR_FindFunctionSymbol(xsslib, "XScreenSaverQueryInfo"); | |
| 58 #endif | |
| 59 } | |
| 60 | |
| 61 nsIdleServiceQt::~nsIdleServiceQt() | |
| 62 { | |
| 63 #if defined(MOZ_X11) | |
| 64 if (mXssInfo) | |
| 65 XFree(mXssInfo); | |
| 66 | |
| 67 // It is not safe to unload libXScrnSaver until each display is closed because | |
| 68 // the library registers callbacks through XESetCloseDisplay (Bug 397607). | |
| 69 // (Also the library and its functions are scoped for the file not the object.) | |
| 70 #if 0 | |
| 71 if (xsslib) { | |
| 72 PR_UnloadLibrary(xsslib); | |
| 73 xsslib = nullptr; | |
| 74 } | |
| 75 #endif | |
| 76 #endif | |
| 77 } | |
| 78 | |
| 79 bool | |
| 80 nsIdleServiceQt::PollIdleTime(uint32_t *aIdleTime) | |
| 81 { | |
| 82 #if defined(MOZ_X11) | |
| 83 // Ask xscreensaver about idle time: | |
| 84 *aIdleTime = 0; | |
| 85 | |
| 86 // We might not have a display (cf. in xpcshell) | |
| 87 Display *dplay = mozilla::DefaultXDisplay(); | |
| 88 if (!dplay) { | |
| 89 return false; | |
| 90 } | |
| 91 | |
| 92 if (!sInitialized) { | |
| 93 Initialize(); | |
| 94 } | |
| 95 if (!_XSSQueryExtension || !_XSSAllocInfo || !_XSSQueryInfo) { | |
| 96 return false; | |
| 97 } | |
| 98 | |
| 99 int event_base, error_base; | |
| 100 if (_XSSQueryExtension(dplay, &event_base, &error_base)) { | |
| 101 if (!mXssInfo) | |
| 102 mXssInfo = _XSSAllocInfo(); | |
| 103 if (!mXssInfo) | |
| 104 return false; | |
| 105 | |
| 106 _XSSQueryInfo(dplay, RootWindowOfScreen(DefaultScreenOfDisplay(mozilla::DefaultXDisplay())), mXssInfo); | |
| 107 *aIdleTime = mXssInfo->idle; | |
| 108 return true; | |
| 109 } | |
| 110 #endif | |
| 111 | |
| 112 return false; | |
| 113 } | |
| 114 | |
| 115 bool | |
| 116 nsIdleServiceQt::UsePollMode() | |
| 117 { | |
| 118 #if defined(MOZ_X11) | |
| 119 return false; | |
| 120 #endif | |
| 121 return true; | |
| 122 } | |
| 123 |
