0
+ − 1 /* External client, raw Xlib version.
+ − 2 Copyright (C) 1993, 1994 Sun Microsystems, Inc.
+ − 3
+ − 4 This library is free software; you can redistribute it and/or
+ − 5 modify it under the terms of the GNU Library General Public
+ − 6 License as published by the Free Software Foundation; either
+ − 7 version 2 of the License, or (at your option) any later version.
+ − 8
+ − 9 This library is distributed in the hope that it will be useful,
+ − 10 but WITHOUT ANY WARRANTY; without even the implied warranty of
+ − 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ − 12 Library General Public License for more details.
+ − 13
+ − 14 You should have received a copy of the GNU Library General Public
+ − 15 License along with this library; if not, write to
+ − 16 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ − 17 Boston, MA 02111-1307, USA. */
+ − 18
+ − 19 /* Synched up with: Not in FSF. */
+ − 20
+ − 21 /* Written by Ben Wing, February 1994. */
+ − 22
+ − 23 #include <X11/Xlib.h>
+ − 24 #include <X11/Xresource.h>
+ − 25 #include <X11/Xutil.h>
+ − 26 #include "extw-Xlib.h"
+ − 27
+ − 28 /* this is not a perfect solution, but otherwise we have to include all
+ − 29 of the Xt junk */
+ − 30
+ − 31 #define XtGeometryNo 1
+ − 32
+ − 33 #if (XlibSpecificationRelease < 5)
+ − 34 # define XPointer char *
+ − 35 #endif
+ − 36
+ − 37 static int context_inited;
+ − 38 static XContext focus_context;
+ − 39
+ − 40 /* does the specified window have the focus, given that the pointer just
+ − 41 entered (or left) the window (according to enter_p)? This question
+ − 42 does not have an obvious answer in X. (Basically, X sucks.) */
+ − 43
+ − 44 static int
+ − 45 window_has_focus_p (Display *display, Window win, int enter_p)
+ − 46 {
+ − 47 Window focuswin;
+ − 48 int dummy;
+ − 49
+ − 50 XGetInputFocus(display, &focuswin, &dummy);
+ − 51 if (focuswin == PointerRoot)
+ − 52 return enter_p;
+ − 53 if (focuswin == win)
+ − 54 return True;
+ − 55 if (!enter_p)
+ − 56 return False;
+ − 57 do
+ − 58 {
+ − 59 Status st;
+ − 60 Window root_win, parent_win;
+ − 61 Window *child_win;
2108
+ − 62 unsigned int nchild;
0
+ − 63
2108
+ − 64 st = XQueryTree (display, win, &root_win, &parent_win, &child_win,
+ − 65 &nchild);
0
+ − 66 if (!st)
+ − 67 return False;
+ − 68 XFree((XPointer)child_win);
+ − 69 if (parent_win == focuswin)
+ − 70 return True;
+ − 71 if (parent_win == root_win)
+ − 72 return False;
+ − 73 win = parent_win;
+ − 74 }
+ − 75 while (1);
+ − 76 }
+ − 77
2108
+ − 78
0
+ − 79 /* External entry points when using XLib directly */
+ − 80
+ − 81 void ExternalClientInitialize (Display *display, Window win);
+ − 82 void
+ − 83 ExternalClientInitialize (Display *display, Window win)
+ − 84 {
+ − 85 extw_initialize_atoms(display);
+ − 86 extw_which_side = extw_client_send;
+ − 87 if (!context_inited)
+ − 88 {
+ − 89 focus_context = XUniqueContext();
+ − 90 context_inited = 1;
+ − 91 }
+ − 92 XSaveContext(display, win, focus_context, 0);
+ − 93 XSelectInput(display, win, EnterWindowMask | LeaveWindowMask |
+ − 94 FocusChangeMask);
+ − 95 }
+ − 96
+ − 97 void ExternalClientEventHandler (Display *display, Window win, XEvent *event);
+ − 98 void
+ − 99 ExternalClientEventHandler (Display *display, Window win, XEvent *event)
+ − 100 {
+ − 101 if (win != event->xany.window)
+ − 102 return;
2108
+ − 103
0
+ − 104 if (event->type == ClientMessage &&
+ − 105 event->xclient.message_type == a_EXTW_NOTIFY &&
+ − 106 event->xclient.data.l[0] == extw_shell_send)
+ − 107 switch (event->xclient.data.l[1]) {
+ − 108 case extw_notify_gm:
+ − 109 /* for the moment, just refuse geometry requests. */
+ − 110 extw_send_notify_3(display, win, extw_notify_gm, XtGeometryNo, 0, 0);
+ − 111 break;
2108
+ − 112
0
+ − 113 case extw_notify_init:
+ − 114 extw_send_notify_3(display, win, extw_notify_init, EXTW_TYPE_XLIB, 0, 0);
+ − 115 break;
2108
+ − 116
0
+ − 117 case extw_notify_end:
+ − 118 XClearArea(display, win, 0, 0, 0, 0, True);
+ − 119 break;
+ − 120 }
+ − 121 else
+ − 122 {
+ − 123 int focus_status;
+ − 124 XPointer current_focus;
+ − 125
+ − 126 if (event->type == FocusIn)
+ − 127 focus_status = 1;
+ − 128 else if (event->type == FocusOut)
+ − 129 focus_status = 0;
+ − 130 else if (event->type == EnterNotify &&
+ − 131 event->xcrossing.detail != NotifyInferior)
+ − 132 focus_status = window_has_focus_p(display, win, 1);
+ − 133 else if (event->type == LeaveNotify &&
+ − 134 event->xcrossing.detail != NotifyInferior)
+ − 135 focus_status = window_has_focus_p(display, win, 0);
+ − 136 else
+ − 137 return;
+ − 138 XFindContext(display, win, focus_context, ¤t_focus);
+ − 139 if (focus_status != (int) current_focus)
+ − 140 {
+ − 141 XSaveContext(display, win, focus_context, (XPointer) focus_status);
+ − 142 extw_send_notify_3(display, win, focus_status ?
+ − 143 extw_notify_focus_in : extw_notify_focus_out,
+ − 144 0, 0, 0);
+ − 145 }
+ − 146 }
+ − 147 }