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Diffstat (limited to 'util/fbcompose/ServerAutoApp.cc')
-rw-r--r-- | util/fbcompose/ServerAutoApp.cc | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/util/fbcompose/ServerAutoApp.cc b/util/fbcompose/ServerAutoApp.cc new file mode 100644 index 0000000..1f42575 --- /dev/null +++ b/util/fbcompose/ServerAutoApp.cc | |||
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1 | /** ServerAutoApp.cc file for the fluxbox compositor. */ | ||
2 | |||
3 | // Copyright (c) 2011 Gediminas Liktaras (gliktaras at gmail dot com) | ||
4 | // | ||
5 | // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
6 | // of this software and associated documentation files (the "Software"), to deal | ||
7 | // in the Software without restriction, including without limitation the rights | ||
8 | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
9 | // copies of the Software, and to permit persons to whom the Software is | ||
10 | // furnished to do so, subject to the following conditions: | ||
11 | // | ||
12 | // The above copyright notice and this permission notice shall be included in | ||
13 | // all copies or substantial portions of the Software. | ||
14 | // | ||
15 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
16 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
17 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
18 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
19 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
20 | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
21 | // THE SOFTWARE. | ||
22 | |||
23 | |||
24 | #ifdef HAVE_CONFIG_H | ||
25 | #include "config.h" | ||
26 | #endif // HAVE_CONFIG_H | ||
27 | |||
28 | #include "ServerAutoApp.hh" | ||
29 | |||
30 | #include "Atoms.hh" | ||
31 | #include "CompositorConfig.hh" | ||
32 | #include "Constants.hh" | ||
33 | |||
34 | #include <X11/extensions/Xcomposite.h> | ||
35 | #include <X11/Xlib.h> | ||
36 | #include <X11/Xutil.h> | ||
37 | |||
38 | #include <sstream> | ||
39 | |||
40 | #ifdef HAVE_CTIME | ||
41 | #include <ctime> | ||
42 | #else | ||
43 | #ifdef HAVE_TIME_H | ||
44 | #include <time.h> | ||
45 | #endif // HAVE_TIME_H | ||
46 | #endif // HAVE_CTIME | ||
47 | |||
48 | #include <csignal> | ||
49 | |||
50 | using namespace FbCompositor; | ||
51 | |||
52 | |||
53 | //--- CONSTANTS ---------------------------------------------------------------- | ||
54 | |||
55 | // How many microseconds to sleep before restarting the event loop. | ||
56 | const int SLEEP_TIME = 10000; | ||
57 | |||
58 | |||
59 | //--- CONSTRUCTORS AND DESTRUCTORS --------------------------------------------- | ||
60 | |||
61 | // Constructor. | ||
62 | ServerAutoApp::ServerAutoApp(const CompositorConfig &config) : | ||
63 | App(config.displayName().c_str()) { | ||
64 | |||
65 | if (config.renderingMode() != RM_ServerAuto) { | ||
66 | throw InitException("ServerAutoApp provides only the \"serverauto\" renderer."); | ||
67 | } | ||
68 | initComposite(); | ||
69 | initScreens(); | ||
70 | |||
71 | XFlush(display()); | ||
72 | |||
73 | signal(SIGINT, handleSignal_ServerAuto); | ||
74 | signal(SIGTERM, handleSignal_ServerAuto); | ||
75 | } | ||
76 | |||
77 | // Destructor. | ||
78 | ServerAutoApp::~ServerAutoApp() { } | ||
79 | |||
80 | |||
81 | //--- INITIALIZATION FUNCTIONS ------------------------------------------------- | ||
82 | |||
83 | // Initialize Composite extension. | ||
84 | void ServerAutoApp::initComposite() { | ||
85 | int event_base; | ||
86 | int error_base; | ||
87 | int major_ver; | ||
88 | int minor_ver; | ||
89 | |||
90 | if (!XCompositeQueryExtension(display(), &event_base, &error_base)) { | ||
91 | throw InitException("Composite extension not found."); | ||
92 | } | ||
93 | if (!XCompositeQueryVersion(display(), &major_ver, &minor_ver)) { | ||
94 | throw InitException("Could not query the version of the Composite extension."); | ||
95 | } | ||
96 | if ((major_ver < 0) || ((major_ver == 0) && (minor_ver < 1))) { | ||
97 | std::stringstream ss; | ||
98 | ss << "Unsupported Composite extension version found (required >=0.1, got " | ||
99 | << major_ver << "." << minor_ver << ")."; | ||
100 | throw InitException(ss.str()); | ||
101 | } | ||
102 | } | ||
103 | |||
104 | // Prepare screens. | ||
105 | void ServerAutoApp::initScreens() { | ||
106 | int screen_count = XScreenCount(display()); | ||
107 | |||
108 | for (int i = 0; i < screen_count; i++) { | ||
109 | XCompositeRedirectSubwindows(display(), XRootWindow(display(), i), CompositeRedirectAutomatic); | ||
110 | |||
111 | Atom cm_atom = Atoms::compositingSelectionAtom(i); | ||
112 | Window cur_owner = XGetSelectionOwner(display(), cm_atom); | ||
113 | if (cur_owner != None) { | ||
114 | // TODO: More detailed message - what is the other program? | ||
115 | throw InitException("Another compositing manager is running."); | ||
116 | } | ||
117 | |||
118 | cur_owner = XCreateSimpleWindow(display(), XRootWindow(display(), i), -10, -10, 1, 1, 0, None, None); | ||
119 | XmbSetWMProperties(display(), cur_owner, APP_NAME, APP_NAME, NULL, 0, NULL, NULL, NULL); | ||
120 | XSetSelectionOwner(display(), cm_atom, cur_owner, CurrentTime); | ||
121 | } | ||
122 | } | ||
123 | |||
124 | |||
125 | //--- EVENT LOOP --------------------------------------------------------------- | ||
126 | |||
127 | // Enters the event loop. | ||
128 | void ServerAutoApp::eventLoop() { | ||
129 | timespec sleep_timespec = { 0, SLEEP_TIME * 1000 }; | ||
130 | while (!done()) { | ||
131 | nanosleep(&sleep_timespec, NULL); | ||
132 | } | ||
133 | } | ||
134 | |||
135 | |||
136 | //--- VARIOUS HANDLERS --------------------------------------------------------- | ||
137 | |||
138 | // Custom signal handler for ServerAuto mode. | ||
139 | void FbCompositor::handleSignal_ServerAuto(int sig) { | ||
140 | if ((sig == SIGINT) || (sig == SIGTERM)) { | ||
141 | FbTk::App::instance()->end(); | ||
142 | } | ||
143 | } | ||