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# git-gui tree browser
# Copyright (C) 2006, 2007 Shawn Pearce
class browser {
field w
field browser_commit
field browser_path
field browser_files {}
field browser_status {Starting...}
field browser_stack {}
field browser_busy 1
constructor new {commit} {
global cursor_ptr M1B
make_toplevel top w
wm title $top "[appname] ([reponame]): File Browser"
set browser_commit $commit
set browser_path $browser_commit:
label $w.path \
-textvariable @browser_path \
-anchor w \
-justify left \
-borderwidth 1 \
-relief sunken \
-font font_uibold
pack $w.path -anchor w -side top -fill x
frame $w.list
set w_list $w.list.l
text $w_list -background white -borderwidth 0 \
-cursor $cursor_ptr \
-state disabled \
-wrap none \
-height 20 \
-width 70 \
-xscrollcommand [list $w.list.sbx set] \
-yscrollcommand [list $w.list.sby set]
$w_list tag conf in_sel \
-background [$w_list cget -foreground] \
-foreground [$w_list cget -background]
scrollbar $w.list.sbx -orient h -command [list $w_list xview]
scrollbar $w.list.sby -orient v -command [list $w_list yview]
pack $w.list.sbx -side bottom -fill x
pack $w.list.sby -side right -fill y
pack $w_list -side left -fill both -expand 1
pack $w.list -side top -fill both -expand 1
label $w.status \
-textvariable @browser_status \
-anchor w \
-justify left \
-borderwidth 1 \
-relief sunken
pack $w.status -anchor w -side bottom -fill x
bind $w_list <Button-1> "[cb _click 0 @%x,%y];break"
bind $w_list <Double-Button-1> "[cb _click 1 @%x,%y];break"
bind $w_list <$M1B-Up> "[cb _parent] ;break"
bind $w_list <$M1B-Left> "[cb _parent] ;break"
bind $w_list <Up> "[cb _move -1] ;break"
bind $w_list <Down> "[cb _move 1] ;break"
bind $w_list <$M1B-Right> "[cb _enter] ;break"
bind $w_list <Return> "[cb _enter] ;break"
bind $w_list <Prior> "[cb _page -1] ;break"
bind $w_list <Next> "[cb _page 1] ;break"
bind $w_list <Left> break
bind $w_list <Right> break
bind $w_list <Visibility> [list focus $w_list]
bind $w_list <Destroy> [list delete_this $this]
set w $w_list
_ls $this $browser_commit
return $this
}
method _move {dir} {
if {$browser_busy} return
set lno [lindex [split [$w index in_sel.first] .] 0]
incr lno $dir
if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
$w tag remove in_sel 0.0 end
$w tag add in_sel $lno.0 [expr {$lno + 1}].0
$w see $lno.0
}
}
method _page {dir} {
if {$browser_busy} return
$w yview scroll $dir pages
set lno [expr {int(
[lindex [$w yview] 0]
* [llength $browser_files]
+ 1)}]
if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
$w tag remove in_sel 0.0 end
$w tag add in_sel $lno.0 [expr {$lno + 1}].0
$w see $lno.0
}
}
method _parent {} {
if {$browser_busy} return
set info [lindex $browser_files 0]
if {[lindex $info 0] eq {parent}} {
set parent [lindex $browser_stack end-1]
set browser_stack [lrange $browser_stack 0 end-2]
if {$browser_stack eq {}} {
regsub {:.*$} $browser_path {:} browser_path
} else {
regsub {/[^/]+$} $browser_path {} browser_path
}
set browser_status "Loading $browser_path..."
_ls $this [lindex $parent 0] [lindex $parent 1]
}
}
method _enter {} {
if {$browser_busy} return
set lno [lindex [split [$w index in_sel.first] .] 0]
set info [lindex $browser_files [expr {$lno - 1}]]
if {$info ne {}} {
switch -- [lindex $info 0] {
parent {
_parent $this
}
tree {
set name [lindex $info 2]
set escn [escape_path $name]
set browser_status "Loading $escn..."
append browser_path $escn
_ls $this [lindex $info 1] $name
}
blob {
set name [lindex $info 2]
set p {}
foreach n $browser_stack {
append p [lindex $n 1]
}
append p $name
blame::new $browser_commit $p
}
}
}
}
method _click {was_double_click pos} {
if {$browser_busy} return
set lno [lindex [split [$w index $pos] .] 0]
focus $w
if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
$w tag remove in_sel 0.0 end
$w tag add in_sel $lno.0 [expr {$lno + 1}].0
if {$was_double_click} {
_enter $this
}
}
}
method _ls {tree_id {name {}}} {
set browser_buffer {}
set browser_files {}
set browser_busy 1
$w conf -state normal
$w tag remove in_sel 0.0 end
$w delete 0.0 end
if {$browser_stack ne {}} {
$w image create end \
-align center -padx 5 -pady 1 \
-name icon0 \
-image file_uplevel
$w insert end {[Up To Parent]}
lappend browser_files parent
}
lappend browser_stack [list $tree_id $name]
$w conf -state disabled
set cmd [list git ls-tree -z $tree_id]
set fd [open "| $cmd" r]
fconfigure $fd -blocking 0 -translation binary -encoding binary
fileevent $fd readable [cb _read $fd]
}
method _read {fd} {
append browser_buffer [read $fd]
set pck [split $browser_buffer "\0"]
set browser_buffer [lindex $pck end]
set n [llength $browser_files]
$w conf -state normal
foreach p [lrange $pck 0 end-1] {
set info [split $p "\t"]
set path [lindex $info 1]
set info [split [lindex $info 0] { }]
set type [lindex $info 1]
set object [lindex $info 2]
switch -- $type {
blob {
set image file_mod
}
tree {
set image file_dir
append path /
}
default {
set image file_question
}
}
if {$n > 0} {$w insert end "\n"}
$w image create end \
-align center -padx 5 -pady 1 \
-name icon[incr n] \
-image $image
$w insert end [escape_path $path]
lappend browser_files [list $type $object $path]
}
$w conf -state disabled
if {[eof $fd]} {
close $fd
set browser_status Ready.
set browser_busy 0
unset browser_buffer
if {$n > 0} {
$w tag add in_sel 1.0 2.0
focus -force $w
}
}
} ifdeleted {
catch {close $fd}
}
}
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