1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_vcl.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski #include <stdio.h>
28*b1cdbd2cSJim Jagielski #include <stdlib.h>
29*b1cdbd2cSJim Jagielski #include <string.h>
30*b1cdbd2cSJim Jagielski #include <unistd.h>
31*b1cdbd2cSJim Jagielski
32*b1cdbd2cSJim Jagielski #include <X11/Xlib.h>
33*b1cdbd2cSJim Jagielski #include <X11/Xutil.h>
34*b1cdbd2cSJim Jagielski #include <X11/Xatom.h>
35*b1cdbd2cSJim Jagielski #include "FWS.hxx"
36*b1cdbd2cSJim Jagielski
37*b1cdbd2cSJim Jagielski static Atom fwsIconAtom;
38*b1cdbd2cSJim Jagielski
39*b1cdbd2cSJim Jagielski static Atom FWS_CLIENT;
40*b1cdbd2cSJim Jagielski static Atom FWS_COMM_WINDOW;
41*b1cdbd2cSJim Jagielski static Atom FWS_PROTOCOLS;
42*b1cdbd2cSJim Jagielski static Atom FWS_STACK_UNDER;
43*b1cdbd2cSJim Jagielski static Atom FWS_PARK_ICONS;
44*b1cdbd2cSJim Jagielski static Atom FWS_PASS_ALL_INPUT;
45*b1cdbd2cSJim Jagielski static Atom FWS_PASSES_INPUT;
46*b1cdbd2cSJim Jagielski static Atom FWS_HANDLES_FOCUS;
47*b1cdbd2cSJim Jagielski
48*b1cdbd2cSJim Jagielski static Atom FWS_REGISTER_WINDOW;
49*b1cdbd2cSJim Jagielski static Atom FWS_STATE_CHANGE;
50*b1cdbd2cSJim Jagielski static Atom FWS_UNSEEN_STATE;
51*b1cdbd2cSJim Jagielski static Atom FWS_NORMAL_STATE;
52*b1cdbd2cSJim Jagielski static Atom WM_PROTOCOLS;
53*b1cdbd2cSJim Jagielski static Atom WM_CHANGE_STATE;
54*b1cdbd2cSJim Jagielski
55*b1cdbd2cSJim Jagielski static Bool fwsStackUnder;
56*b1cdbd2cSJim Jagielski static Bool fwsParkIcons;
57*b1cdbd2cSJim Jagielski static Bool fwsPassesInput;
58*b1cdbd2cSJim Jagielski static Bool fwsHandlesFocus;
59*b1cdbd2cSJim Jagielski
60*b1cdbd2cSJim Jagielski static Window fwsCommWindow;
61*b1cdbd2cSJim Jagielski
62*b1cdbd2cSJim Jagielski /*************************************<->***********************************
63*b1cdbd2cSJim Jagielski *
64*b1cdbd2cSJim Jagielski * WMSupportsFWS() -
65*b1cdbd2cSJim Jagielski *
66*b1cdbd2cSJim Jagielski * Initialize our atoms and determine if the current window manager is
67*b1cdbd2cSJim Jagielski * providing FWS extension support.
68*b1cdbd2cSJim Jagielski *
69*b1cdbd2cSJim Jagielski *************************************<->***********************************/
70*b1cdbd2cSJim Jagielski
71*b1cdbd2cSJim Jagielski Bool
WMSupportsFWS(Display * display,int screen)72*b1cdbd2cSJim Jagielski WMSupportsFWS (Display *display, int screen)
73*b1cdbd2cSJim Jagielski {
74*b1cdbd2cSJim Jagielski unsigned int i;
75*b1cdbd2cSJim Jagielski Atom protocol;
76*b1cdbd2cSJim Jagielski Atom propType;
77*b1cdbd2cSJim Jagielski int propFormat;
78*b1cdbd2cSJim Jagielski unsigned long propItems;
79*b1cdbd2cSJim Jagielski unsigned long propBytesAfter;
80*b1cdbd2cSJim Jagielski unsigned char *propData;
81*b1cdbd2cSJim Jagielski char propName[64];
82*b1cdbd2cSJim Jagielski
83*b1cdbd2cSJim Jagielski FWS_CLIENT = XInternAtom(display, "_SUN_FWS_CLIENT", False);
84*b1cdbd2cSJim Jagielski FWS_COMM_WINDOW = XInternAtom(display, "_SUN_FWS_COMM_WINDOW", False);
85*b1cdbd2cSJim Jagielski FWS_PROTOCOLS = XInternAtom(display, "_SUN_FWS_PROTOCOLS", False);
86*b1cdbd2cSJim Jagielski FWS_STACK_UNDER = XInternAtom(display, "_SUN_FWS_STACK_UNDER", False);
87*b1cdbd2cSJim Jagielski FWS_PARK_ICONS = XInternAtom(display, "_SUN_FWS_PARK_ICONS", False);
88*b1cdbd2cSJim Jagielski FWS_PASS_ALL_INPUT = XInternAtom(display, "_SUN_FWS_PASS_ALL_INPUT", False);
89*b1cdbd2cSJim Jagielski FWS_PASSES_INPUT = XInternAtom(display, "_SUN_FWS_PASSES_INPUT", False);
90*b1cdbd2cSJim Jagielski FWS_HANDLES_FOCUS = XInternAtom(display, "_SUN_FWS_HANDLES_FOCUS", False);
91*b1cdbd2cSJim Jagielski FWS_REGISTER_WINDOW= XInternAtom(display, "_SUN_FWS_REGISTER_WINDOW",False);
92*b1cdbd2cSJim Jagielski FWS_STATE_CHANGE = XInternAtom(display, "_SUN_FWS_STATE_CHANGE", False);
93*b1cdbd2cSJim Jagielski FWS_UNSEEN_STATE = XInternAtom(display, "_SUN_FWS_UNSEEN_STATE", False);
94*b1cdbd2cSJim Jagielski FWS_NORMAL_STATE = XInternAtom(display, "_SUN_FWS_NORMAL_STATE", False);
95*b1cdbd2cSJim Jagielski WM_PROTOCOLS = XInternAtom(display, "WM_PROTOCOLS", False);
96*b1cdbd2cSJim Jagielski WM_CHANGE_STATE = XInternAtom(display, "WM_CHANGE_STATE", False);
97*b1cdbd2cSJim Jagielski
98*b1cdbd2cSJim Jagielski snprintf (propName, sizeof(propName), "_SUN_FWS_NEXT_ICON_%d", screen);
99*b1cdbd2cSJim Jagielski fwsIconAtom = XInternAtom(display, propName, False);
100*b1cdbd2cSJim Jagielski
101*b1cdbd2cSJim Jagielski if (XGetWindowProperty (display, DefaultRootWindow (display),
102*b1cdbd2cSJim Jagielski FWS_COMM_WINDOW, 0, 1,
103*b1cdbd2cSJim Jagielski False, AnyPropertyType, &propType,
104*b1cdbd2cSJim Jagielski &propFormat, &propItems,
105*b1cdbd2cSJim Jagielski &propBytesAfter, &propData) != Success)
106*b1cdbd2cSJim Jagielski return False;
107*b1cdbd2cSJim Jagielski
108*b1cdbd2cSJim Jagielski if (propFormat != 32 ||
109*b1cdbd2cSJim Jagielski propItems != 1 ||
110*b1cdbd2cSJim Jagielski propBytesAfter != 0)
111*b1cdbd2cSJim Jagielski {
112*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
113*b1cdbd2cSJim Jagielski fprintf (stderr, "Bad FWS_COMM_WINDOW property on root window.\n");
114*b1cdbd2cSJim Jagielski #endif
115*b1cdbd2cSJim Jagielski XFree (propData);
116*b1cdbd2cSJim Jagielski return False;
117*b1cdbd2cSJim Jagielski }
118*b1cdbd2cSJim Jagielski
119*b1cdbd2cSJim Jagielski fwsCommWindow = *(Window *) propData;
120*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
121*b1cdbd2cSJim Jagielski fprintf (stderr, "Using fwsCommWindow = 0x%lx.\n", fwsCommWindow);
122*b1cdbd2cSJim Jagielski #endif
123*b1cdbd2cSJim Jagielski XFree (propData);
124*b1cdbd2cSJim Jagielski
125*b1cdbd2cSJim Jagielski
126*b1cdbd2cSJim Jagielski if (XGetWindowProperty (display, DefaultRootWindow (display),
127*b1cdbd2cSJim Jagielski FWS_PROTOCOLS, 0, 10,
128*b1cdbd2cSJim Jagielski False, AnyPropertyType, &propType,
129*b1cdbd2cSJim Jagielski &propFormat, &propItems,
130*b1cdbd2cSJim Jagielski &propBytesAfter, &propData) != Success)
131*b1cdbd2cSJim Jagielski {
132*b1cdbd2cSJim Jagielski return False;
133*b1cdbd2cSJim Jagielski }
134*b1cdbd2cSJim Jagielski
135*b1cdbd2cSJim Jagielski if (propFormat != 32 ||
136*b1cdbd2cSJim Jagielski propBytesAfter != 0)
137*b1cdbd2cSJim Jagielski {
138*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
139*b1cdbd2cSJim Jagielski fprintf (stderr, "Bad FWS_PROTOCOLS property on root window.\n");
140*b1cdbd2cSJim Jagielski #endif
141*b1cdbd2cSJim Jagielski XFree (propData);
142*b1cdbd2cSJim Jagielski return False;
143*b1cdbd2cSJim Jagielski }
144*b1cdbd2cSJim Jagielski
145*b1cdbd2cSJim Jagielski for (i = 0; i < propItems; ++i)
146*b1cdbd2cSJim Jagielski {
147*b1cdbd2cSJim Jagielski protocol = ((Atom *) propData)[i];
148*b1cdbd2cSJim Jagielski if (protocol == FWS_STACK_UNDER)
149*b1cdbd2cSJim Jagielski {
150*b1cdbd2cSJim Jagielski fwsStackUnder = True;
151*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
152*b1cdbd2cSJim Jagielski fprintf (stderr, "Using fwsStackUnder.\n");
153*b1cdbd2cSJim Jagielski #endif
154*b1cdbd2cSJim Jagielski }
155*b1cdbd2cSJim Jagielski else
156*b1cdbd2cSJim Jagielski if (protocol == FWS_PARK_ICONS)
157*b1cdbd2cSJim Jagielski {
158*b1cdbd2cSJim Jagielski fwsParkIcons = True;
159*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
160*b1cdbd2cSJim Jagielski fprintf (stderr, "Using fwsParkIcons.\n");
161*b1cdbd2cSJim Jagielski #endif
162*b1cdbd2cSJim Jagielski }
163*b1cdbd2cSJim Jagielski else
164*b1cdbd2cSJim Jagielski if (protocol == FWS_PASSES_INPUT)
165*b1cdbd2cSJim Jagielski {
166*b1cdbd2cSJim Jagielski fwsPassesInput = True;
167*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
168*b1cdbd2cSJim Jagielski fprintf (stderr, "Using fwsPassesInput.\n");
169*b1cdbd2cSJim Jagielski #endif
170*b1cdbd2cSJim Jagielski }
171*b1cdbd2cSJim Jagielski else
172*b1cdbd2cSJim Jagielski if (protocol == FWS_HANDLES_FOCUS)
173*b1cdbd2cSJim Jagielski {
174*b1cdbd2cSJim Jagielski fwsHandlesFocus = True;
175*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
176*b1cdbd2cSJim Jagielski fprintf (stderr, "Using fwsHandlesFocus.\n");
177*b1cdbd2cSJim Jagielski #endif
178*b1cdbd2cSJim Jagielski }
179*b1cdbd2cSJim Jagielski }
180*b1cdbd2cSJim Jagielski
181*b1cdbd2cSJim Jagielski XFree (propData);
182*b1cdbd2cSJim Jagielski return True;
183*b1cdbd2cSJim Jagielski }
184*b1cdbd2cSJim Jagielski
185*b1cdbd2cSJim Jagielski /*************************************<->***********************************
186*b1cdbd2cSJim Jagielski *
187*b1cdbd2cSJim Jagielski * newHandler() -
188*b1cdbd2cSJim Jagielski *
189*b1cdbd2cSJim Jagielski * Handle X errors (temporarily) to record the occurance of BadWindow
190*b1cdbd2cSJim Jagielski * errors without crashing. Used to detect the FWS_COMM_WINDOW root window
191*b1cdbd2cSJim Jagielski * property containing an old or obsolete window id.
192*b1cdbd2cSJim Jagielski *
193*b1cdbd2cSJim Jagielski *************************************<->***********************************/
194*b1cdbd2cSJim Jagielski
195*b1cdbd2cSJim Jagielski extern "C" {
196*b1cdbd2cSJim Jagielski
197*b1cdbd2cSJim Jagielski static Bool badWindowFound;
198*b1cdbd2cSJim Jagielski static int (* oldHandler) (Display *, XErrorEvent *);
199*b1cdbd2cSJim Jagielski
200*b1cdbd2cSJim Jagielski static int
newHandler(Display * display,XErrorEvent * xerror)201*b1cdbd2cSJim Jagielski newHandler (Display *display, XErrorEvent *xerror)
202*b1cdbd2cSJim Jagielski {
203*b1cdbd2cSJim Jagielski if (xerror->error_code != BadWindow)
204*b1cdbd2cSJim Jagielski (*oldHandler)(display, xerror);
205*b1cdbd2cSJim Jagielski else
206*b1cdbd2cSJim Jagielski badWindowFound = True;
207*b1cdbd2cSJim Jagielski
208*b1cdbd2cSJim Jagielski return 0;
209*b1cdbd2cSJim Jagielski }
210*b1cdbd2cSJim Jagielski
211*b1cdbd2cSJim Jagielski }
212*b1cdbd2cSJim Jagielski
213*b1cdbd2cSJim Jagielski /*************************************<->***********************************
214*b1cdbd2cSJim Jagielski *
215*b1cdbd2cSJim Jagielski * RegisterFwsWindow() -
216*b1cdbd2cSJim Jagielski *
217*b1cdbd2cSJim Jagielski * Send a client message to the FWS_COMM_WINDOW indicating the existance
218*b1cdbd2cSJim Jagielski * of a new FWS client window. Be careful to avoid BadWindow errors on
219*b1cdbd2cSJim Jagielski * the XSendEvent in case the FWS_COMM_WINDOW root window property had
220*b1cdbd2cSJim Jagielski * old/obsolete junk in it.
221*b1cdbd2cSJim Jagielski *
222*b1cdbd2cSJim Jagielski *************************************<->***********************************/
223*b1cdbd2cSJim Jagielski
224*b1cdbd2cSJim Jagielski Bool
RegisterFwsWindow(Display * display,Window window)225*b1cdbd2cSJim Jagielski RegisterFwsWindow (Display *display, Window window)
226*b1cdbd2cSJim Jagielski {
227*b1cdbd2cSJim Jagielski XClientMessageEvent msg;
228*b1cdbd2cSJim Jagielski
229*b1cdbd2cSJim Jagielski msg.type = ClientMessage;
230*b1cdbd2cSJim Jagielski msg.window = fwsCommWindow;
231*b1cdbd2cSJim Jagielski msg.message_type = FWS_REGISTER_WINDOW;
232*b1cdbd2cSJim Jagielski msg.format = 32;
233*b1cdbd2cSJim Jagielski msg.data.l[0] = window;
234*b1cdbd2cSJim Jagielski
235*b1cdbd2cSJim Jagielski XSync (display, False);
236*b1cdbd2cSJim Jagielski badWindowFound = False;
237*b1cdbd2cSJim Jagielski oldHandler = XSetErrorHandler (newHandler);
238*b1cdbd2cSJim Jagielski
239*b1cdbd2cSJim Jagielski XSendEvent (display, fwsCommWindow, False, NoEventMask,
240*b1cdbd2cSJim Jagielski (XEvent *) &msg);
241*b1cdbd2cSJim Jagielski XSync (display, False);
242*b1cdbd2cSJim Jagielski
243*b1cdbd2cSJim Jagielski XSetErrorHandler (oldHandler);
244*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
245*b1cdbd2cSJim Jagielski if (badWindowFound)
246*b1cdbd2cSJim Jagielski fprintf (stderr, "No FWS client window to register with.\n");
247*b1cdbd2cSJim Jagielski #endif
248*b1cdbd2cSJim Jagielski
249*b1cdbd2cSJim Jagielski return !badWindowFound;
250*b1cdbd2cSJim Jagielski }
251*b1cdbd2cSJim Jagielski
252*b1cdbd2cSJim Jagielski /*************************************<->***********************************
253*b1cdbd2cSJim Jagielski *
254*b1cdbd2cSJim Jagielski * AddFwsProtocols -
255*b1cdbd2cSJim Jagielski *
256*b1cdbd2cSJim Jagielski * Add the FWS protocol atoms to the WMProtocols property for the window.
257*b1cdbd2cSJim Jagielski *
258*b1cdbd2cSJim Jagielski *************************************<->***********************************/
259*b1cdbd2cSJim Jagielski
260*b1cdbd2cSJim Jagielski void
AddFwsProtocols(Display * display,Window window)261*b1cdbd2cSJim Jagielski AddFwsProtocols (Display *display, Window window)
262*b1cdbd2cSJim Jagielski {
263*b1cdbd2cSJim Jagielski #define MAX_FWS_PROTOS 10
264*b1cdbd2cSJim Jagielski
265*b1cdbd2cSJim Jagielski Atom fwsProtocols[ MAX_FWS_PROTOS ];
266*b1cdbd2cSJim Jagielski int nProtos = 0;
267*b1cdbd2cSJim Jagielski
268*b1cdbd2cSJim Jagielski fwsProtocols[ nProtos++ ] = FWS_CLIENT;
269*b1cdbd2cSJim Jagielski fwsProtocols[ nProtos++ ] = FWS_STACK_UNDER;
270*b1cdbd2cSJim Jagielski fwsProtocols[ nProtos++ ] = FWS_STATE_CHANGE;
271*b1cdbd2cSJim Jagielski fwsProtocols[ nProtos++ ] = FWS_PASS_ALL_INPUT;
272*b1cdbd2cSJim Jagielski XChangeProperty (display, window, WM_PROTOCOLS,
273*b1cdbd2cSJim Jagielski XA_ATOM, 32, PropModeAppend,
274*b1cdbd2cSJim Jagielski (unsigned char *) fwsProtocols, nProtos);
275*b1cdbd2cSJim Jagielski }
276*b1cdbd2cSJim Jagielski
277