# Sebastian Hammer, Adam Dickmeiss
#
# $Log: client.tcl,v $
-# Revision 1.46 1995-06-19 13:06:06 adam
+# Revision 1.49 1995-06-20 14:16:42 adam
+# More work on cancel mechanism.
+#
+# Revision 1.48 1995/06/20 08:07:23 adam
+# New setting: failInfo.
+# Working on better cancel mechanism.
+#
+# Revision 1.47 1995/06/19 14:05:29 adam
+# Bug fix: asked for SUTRS.
+#
+# Revision 1.46 1995/06/19 13:06:06 adam
# New define: IR_TCL_VERSION.
#
# Revision 1.45 1995/06/19 08:08:44 adam
set setNo 0
set lastSetNo 0
set cancelFlag 0
-set searchEnable 0
set scanEnable 0
set fullMarcSeq 0
set displayFormat 1
set popupMarcdf 0
set textWrap word
+set delayRequest {}
set queryTypes {Simple}
set queryButtons { { {I 0} {I 1} {I 2} } }
}
proc dputs {m} {
-# puts $m
+ puts $m
}
proc set-display-format {f} {
proc cancel-operation {} {
global cancelFlag
global busy
+ global delayRequest
- set cancelFlag 1
if {$busy} {
- show-status Canceling 0 {}
+ set cancelFlag 1
+ set delayRequest {}
+ show-status Cancel 0 1
}
}
proc show-status {status b sb} {
global busy
- global searchEnable
global scanEnable
global setOffset
global setMax
.scan-window.bot.2 configure -state normal
.scan-window.bot.4 configure -state normal
}
- set searchEnable 1
} else {
.top.service configure -state disabled
.mid.search configure -state disabled
.scan-window.bot.2 configure -state disabled
.scan-window.bot.4 configure -state disabled
}
- set searchEnable 0
}
}
}
proc fail-response {target} {
+ set c [lindex [z39 failInfo] 0]
+ set m [lindex [z39 failInfo] 1]
close-target
- tkerror "Target connection closed or protocol error"
+ tkerror "$m ($c)"
}
proc connect-response {target base} {
}
}
-proc search-request {} {
+proc search-request {bflag} {
global setNo
global profile
global hostid
global busy
global cancelFlag
- global searchEnable
+ global delayRequest
set target $hostid
- if {$searchEnable == 0} {
+ dputs "search-request"
+ show-message {}
+ if {!$bflag && $busy} {
+ dputs "busy: search-request ignored"
+ return
+ }
+ if {$cancelFlag} {
+ dputs "cancelFlag"
+ show-status {Searching} 1 0
+ set delayRequest {search-request 1}
return
}
+ set delayRequest {}
+
set query [index-query]
if {$query==""} {
return
}
incr setNo
ir-set z39.$setNo z39
- z39.$setNo preferredRecordSyntax SUTRS
if {[lindex $profile($target) 10] == 1} {
z39.$setNo setName $setNo
global curIndexEntry
global queryButtonsFind
global queryInfoFind
+ global cancelFlag
+ global delayRequest
+
+ dputs "scan-request"
+ if {$cancelFlag} {
+ dputs "cancelFlag"
+ show-status {Scanning} 1 0
+ set delayRequest scan-request
+ return
+ }
+ set delayRequest {}
set target $hostid
set scanView 0
proc scan-response {attr start toget} {
global cancelFlag
+ global delayRequest
global scanTerm
global scanView
dputs toget=$toget
if {![winfo exists .scan-window]} {
+ if {$cancelFlag} {
+ set cancelFlag 0
+ dputs "Handling cancel"
+ if {$delayRequest != ""} {
+ eval $delayRequest
+ }
+ return
+ }
show-status {Ready} 0 1
- set cancelFlag 0
return
}
set nScanTerm [$w.top.entry get]
}
}
if {$cancelFlag} {
- show-status {Ready} 0 1
+ dputs "Handling cancel"
set cancelFlag 0
+ if {$delayRequest != ""} {
+ eval $delayRequest
+ }
return
}
+ set delayRequest {}
if {$toget > 0 && $m > 1 && $m < $toget} {
set ntoget [expr $toget - $m + 1]
dputs ntoget=$ntoget
proc scan-down {attr} {
global scanView
+ global cancelFlag
+ global delayRequest
+
+ dputs {scan-down}
+ if {$cancelFlag} {
+ dputs "cancelFlag"
+ show-status {Scanning down} 1 0
+ set delayRequest [list scan-down $attr]
+ return
+ }
+ set delayRequest {}
set w .scan-window
set scanView [expr $scanView + 5]
proc scan-up {attr} {
global scanView
+ global cancelFlag
+ global delayRequest
+
+ dputs {scan-up}
+ if {$cancelFlag} {
+ dputs "cancelFlag"
+ show-status {Scanning up} 1 0
+ set delayRequest [list scan-up $attr]
+ return
+ }
+ set delayRequest {}
set w .scan-window
set scanView [expr $scanView - 5]
global setMax
global cancelFlag
global busy
+ global delayRequest
dputs "In search-response"
+ if {$cancelFlag} {
+ dputs "Handling cancel"
+ set cancelFlag 0
+ if {$delayRequest != ""} {
+ eval $delayRequest
+ }
+ return
+ }
+ set delayRequest {}
init-title-lines
set setMax [z39.$setNo resultCount]
show-message "${setMax} hits"
}
set setOffset 1
show-status {Ready} 0 1
- if {$cancelFlag} {
- set cancelFlag 0
- return
- }
z39 callback {present-response}
z39.$setNo present $setOffset 1
show-status {Retrieving} 1 0
global setNo
global setOffset
global setMax
+ global busy
+ global cancelFlag
+ global delayRequest
- dputs "setOffset=$setOffset"
dputs "present-more"
+ if {$cancelFlag} {
+ show-status {Retrieving} 1 0
+ set delayRequest "present-more $number"
+ return
+ }
+ set delayRequest {}
+
if {$setNo == 0} {
dputs "setNo=$setNo"
return
global setOffset
global setMax
global cancelFlag
+ global delayRequest
dputs "In present-response"
set no [z39.$setNo numberOfRecordsReturned]
dputs "Returned $no records, setOffset $setOffset"
add-title-lines $setNo $no $setOffset
set setOffset [expr $setOffset + $no]
+ if {$cancelFlag} {
+ dputs "Handling cancel"
+ set cancelFlag 0
+ if {$delayRequest != ""} {
+ eval $delayRequest
+ }
+ return
+ }
set status [z39.$setNo responseStatus]
if {[lindex $status 0] == "NSD"} {
show-status {Ready} 0 1
tkerror "NSD$code: $msg: $addinfo"
return
}
- if {$cancelFlag} {
- show-status {Ready} 0 1
- set cancelFlag 0
- return
- }
if {$no > 0 && $setOffset <= $setMax} {
dputs "present-request from ${setOffset}"
set toGet [expr $setMax - $setOffset + 1]
pack $w.$i -side top -fill x -padx 2 -pady 2
bind $w.$i.e <Left> [list left-cursor $w.$i.e]
bind $w.$i.e <Right> [list right-cursor $w.$i.e]
- bind $w.$i.e <Return> search-request
+ bind $w.$i.e <Return> {search-request 0}
}
} else {
pack $w.$i.l -side left
-command [list present-more 10]
.top.service.m.present add command -label "All" \
-command [list present-more {}]
-.top.service.m add command -label "Search" -command {search-request}
+.top.service.m add command -label "Search" -command {search-request 0}
.top.service.m add command -label "Scan" -command {scan-request}
.top.service configure -state disabled
index-lines .lines 1 $queryButtonsFind [lindex $queryInfo 0] activate-index
-button .mid.search -width 7 -text {Search} -command search-request \
+button .mid.search -width 7 -text {Search} -command {search-request 0} \
-state disabled
button .mid.scan -width 7 -text {Scan} \
-command scan-request -state disabled