subproc

[chiark-tcl-applet.git] / example

diff --git a/example b/example
index 57e87083d5bf1a19d295895efac94dbd50749e6a..b719c50409dae9a48ce7b4e60c42ab5da791c125 100755 (executable)
--- a/example
+++ b/example
@@ -1,14 +1,93 @@
-#!/usr/bin/wish8.4
+#!/usr/bin/wish8.4 -f
+# -*- Tcl -*-
 
 source applet.tcl
+source subproc.tcl
 
-#----- specifics -----
+#----- menu -----
+
+foreach b {1 3} {
+    applet::setup-button-menu $b
+}
 
 .m1 add command -command { msel; puts hi } -label hi
 .m3 add command -command { msel; puts boo } -label boo
 
-image create bitmap ims -file /usr/share/ghostscript/8.71/lib/gs_s.xbm   
-setimage ims
+#image create bitmap ims -file gs_s.xbm   
+#image create bitmap ims -file /usr/share/ghostscript/8.71/lib/gs_s.xbm   
+#setimage ims
+#setimage ims
+
+applet::setup-tooltip { puts VIS } { puts INVIS }
+applet::tooltip-set "line\nanother"
+
+fconfigure stdout -buffering line
+
+set status none
+
+proc innerwindow-destroying {} {
+    global status
+    puts "DESTROYING $status"
+    switch -exact $status {
+       none { }
+       old { }
+       default { kill $status; set status old }
+    }
+}
+
+proc innerwindow-ready {} {
+    global status
+    puts "READY $status"
+    switch -exact $status {
+       none {
+           run-child
+       }
+       old {
+           # wait for it to die
+       }
+       default {
+           error "unexpected state $status"
+       }
+    }
+    puts "READY-done $status"
+}
+
+set ratelimit 0
+
+proc run-child {} {
+    global status ratelimit
+
+    puts "RUN-CHILD $status"
+    set now [clock seconds]
+    lappend ratelimit $now
+    while {[lindex $ratelimit 0] < {$now - 10}} {
+       set ratelimit [lrange $ratelimit 1 end]
+    }
+    if {[llength $ratelimit] > 10} {
+       puts stderr "crashing repeatedly, quitting $ratelimit"
+       exit 127
+    }
+
+    set status none
+    set status [subproc::fork child-died {
+       execl xacpi-simple [list -into [winfo id .i.i.b.c]]
+    }]
+    puts "FORKED $status"
+}
+
+proc child-died {how how2} {
+    puts "DIED $how $how2"
+    global status
+    switch -exact $status {
+       old {
+           set status none
+           run-child
+       }
+       default {
+           set status none
+           innerwindow-resetup-required "child died"
+       }
+    }
+}
 
-setuptooltip
-settooltip "line\nanother"
+setupinnerwindow 40