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Diffstat (limited to 'git-gui/lib/browser.tcl')
| -rw-r--r-- | git-gui/lib/browser.tcl | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/git-gui/lib/browser.tcl b/git-gui/lib/browser.tcl new file mode 100644 index 0000000000..e612247c9e --- /dev/null +++ b/git-gui/lib/browser.tcl @@ -0,0 +1,242 @@ +# 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 + +field ls_buf {}; # Buffered record output from ls-tree + +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] + 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 ls_buf {} + 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 ls_buf [read $fd] + set pck [split $ls_buf "\0"] + set ls_buf [lindex $pck end] + + set n [llength $browser_files] + $w conf -state normal + foreach p [lrange $pck 0 end-1] { + set tab [string first "\t" $p] + if {$tab == -1} continue + + set info [split [string range $p 0 [expr {$tab - 1}]] { }] + set path [string range $p [expr {$tab + 1}] end] + 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 $fd + set browser_status Ready. + set browser_busy 0 + set ls_buf {} + if {$n > 0} { + $w tag add in_sel 1.0 2.0 + focus -force $w + } + } +} ifdeleted { + catch {close $fd} +} + +} |