Andrew's git - gitweb.git/blob - git-gui/lib/browser.tcl

   1# git-gui tree browser
   2# Copyright (C) 2006, 2007 Shawn Pearce
   3
   4class browser {
   5
   6image create photo ::browser::img_parent  -data {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}
   7image create photo ::browser::img_rblob   -data {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}
   8image create photo ::browser::img_xblob   -data {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}
   9image create photo ::browser::img_tree    -data {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}
  10image create photo ::browser::img_symlink -data {R0lGODlhEAAQAIQAAPwCBCwqLLSytLy+vERGRFRWVDQ2NKSmpAQCBKyurMTGxISChJyanHR2dIyKjGxubHRydGRmZIyOjFxeXHx6fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAAAALAAAAAAQABAAAAVbICACwWieY1CibCCsrBkMb0zchSEcNYskCtqBBzshFkOGQFk0IRqOxqPBODRHCMhCQKteRc9FI/KQWGOIyFYgkDC+gPR4snCcfRGKOIKIgSMQE31+f4OEYCZ+IQAh/mhDcmVhdGVkIGJ5IEJNUFRvR0lGIFBybyB2ZXJzaW9uIDIuNQ0KqSBEZXZlbENvciAxOTk3LDE5OTguIEFsbCByaWdodHMgcmVzZXJ2ZWQuDQpodHRwOi8vd3d3LmRldmVsY29yLmNvbQA7}
  11image create photo ::browser::img_unknown -data {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}
  12
  13field w
  14field browser_commit
  15field browser_path
  16field browser_files  {}
  17field browser_status {Starting...}
  18field browser_stack  {}
  19field browser_busy   1
  20
  21field ls_buf     {}; # Buffered record output from ls-tree
  22
  23constructor new {commit {path {}}} {
  24        global cursor_ptr M1B
  25        make_toplevel top w
  26        wm title $top "[appname] ([reponame]): File Browser"
  27
  28        set browser_commit $commit
  29        set browser_path $browser_commit:$path
  30
  31        label $w.path \
  32                -textvariable @browser_path \
  33                -anchor w \
  34                -justify left \
  35                -borderwidth 1 \
  36                -relief sunken \
  37                -font font_uibold
  38        pack $w.path -anchor w -side top -fill x
  39
  40        frame $w.list
  41        set w_list $w.list.l
  42        text $w_list -background white -borderwidth 0 \
  43                -cursor $cursor_ptr \
  44                -state disabled \
  45                -wrap none \
  46                -height 20 \
  47                -width 70 \
  48                -xscrollcommand [list $w.list.sbx set] \
  49                -yscrollcommand [list $w.list.sby set]
  50        rmsel_tag $w_list
  51        scrollbar $w.list.sbx -orient h -command [list $w_list xview]
  52        scrollbar $w.list.sby -orient v -command [list $w_list yview]
  53        pack $w.list.sbx -side bottom -fill x
  54        pack $w.list.sby -side right -fill y
  55        pack $w_list -side left -fill both -expand 1
  56        pack $w.list -side top -fill both -expand 1
  57
  58        label $w.status \
  59                -textvariable @browser_status \
  60                -anchor w \
  61                -justify left \
  62                -borderwidth 1 \
  63                -relief sunken
  64        pack $w.status -anchor w -side bottom -fill x
  65
  66        bind $w_list <Button-1>        "[cb _click 0 @%x,%y];break"
  67        bind $w_list <Double-Button-1> "[cb _click 1 @%x,%y];break"
  68        bind $w_list <$M1B-Up>         "[cb _parent]        ;break"
  69        bind $w_list <$M1B-Left>       "[cb _parent]        ;break"
  70        bind $w_list <Up>              "[cb _move -1]       ;break"
  71        bind $w_list <Down>            "[cb _move  1]       ;break"
  72        bind $w_list <$M1B-Right>      "[cb _enter]         ;break"
  73        bind $w_list <Return>          "[cb _enter]         ;break"
  74        bind $w_list <Prior>           "[cb _page -1]       ;break"
  75        bind $w_list <Next>            "[cb _page  1]       ;break"
  76        bind $w_list <Left>            break
  77        bind $w_list <Right>           break
  78
  79        bind $w_list <Visibility> [list focus $w_list]
  80        set w $w_list
  81        if {$path ne {}} {
  82                _ls $this $browser_commit:$path $path
  83        } else {
  84                _ls $this $browser_commit $path
  85        }
  86        return $this
  87}
  88
  89method _move {dir} {
  90        if {$browser_busy} return
  91        set lno [lindex [split [$w index in_sel.first] .] 0]
  92        incr lno $dir
  93        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
  94                $w tag remove in_sel 0.0 end
  95                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
  96                $w see $lno.0
  97        }
  98}
  99
 100method _page {dir} {
 101        if {$browser_busy} return
 102        $w yview scroll $dir pages
 103        set lno [expr {int(
 104                  [lindex [$w yview] 0]
 105                * [llength $browser_files]
 106                + 1)}]
 107        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
 108                $w tag remove in_sel 0.0 end
 109                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
 110                $w see $lno.0
 111        }
 112}
 113
 114method _parent {} {
 115        if {$browser_busy} return
 116        set info [lindex $browser_files 0]
 117        if {[lindex $info 0] eq {parent}} {
 118                set parent [lindex $browser_stack end-1]
 119                set browser_stack [lrange $browser_stack 0 end-2]
 120                if {$browser_stack eq {}} {
 121                        regsub {:.*$} $browser_path {:} browser_path
 122                } else {
 123                        regsub {/[^/]+$} $browser_path {} browser_path
 124                }
 125                set browser_status "Loading $browser_path..."
 126                _ls $this [lindex $parent 0] [lindex $parent 1]
 127        }
 128}
 129
 130method _enter {} {
 131        if {$browser_busy} return
 132        set lno [lindex [split [$w index in_sel.first] .] 0]
 133        set info [lindex $browser_files [expr {$lno - 1}]]
 134        if {$info ne {}} {
 135                switch -- [lindex $info 0] {
 136                parent {
 137                        _parent $this
 138                }
 139                tree {
 140                        set name [lindex $info 2]
 141                        set escn [escape_path $name]
 142                        set browser_status "Loading $escn..."
 143                        append browser_path $escn
 144                        _ls $this [lindex $info 1] $name
 145                }
 146                blob {
 147                        set name [lindex $info 2]
 148                        set p {}
 149                        foreach n $browser_stack {
 150                                append p [lindex $n 1]
 151                        }
 152                        append p $name
 153                        blame::new $browser_commit $p
 154                }
 155                }
 156        }
 157}
 158
 159method _click {was_double_click pos} {
 160        if {$browser_busy} return
 161        set lno [lindex [split [$w index $pos] .] 0]
 162        focus $w
 163
 164        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
 165                $w tag remove in_sel 0.0 end
 166                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
 167                if {$was_double_click} {
 168                        _enter $this
 169                }
 170        }
 171}
 172
 173method _ls {tree_id {name {}}} {
 174        set ls_buf {}
 175        set browser_files {}
 176        set browser_busy 1
 177
 178        $w conf -state normal
 179        $w tag remove in_sel 0.0 end
 180        $w delete 0.0 end
 181        if {$browser_stack ne {}} {
 182                $w image create end \
 183                        -align center -padx 5 -pady 1 \
 184                        -name icon0 \
 185                        -image ::browser::img_parent
 186                $w insert end {[Up To Parent]}
 187                lappend browser_files parent
 188        }
 189        lappend browser_stack [list $tree_id $name]
 190        $w conf -state disabled
 191
 192        set fd [git_read ls-tree -z $tree_id]
 193        fconfigure $fd -blocking 0 -translation binary -encoding binary
 194        fileevent $fd readable [cb _read $fd]
 195}
 196
 197method _read {fd} {
 198        append ls_buf [read $fd]
 199        set pck [split $ls_buf "\0"]
 200        set ls_buf [lindex $pck end]
 201
 202        set n [llength $browser_files]
 203        $w conf -state normal
 204        foreach p [lrange $pck 0 end-1] {
 205                set tab [string first "\t" $p]
 206                if {$tab == -1} continue
 207
 208                set info [split [string range $p 0 [expr {$tab - 1}]] { }]
 209                set path [string range $p [expr {$tab + 1}] end]
 210                set type   [lindex $info 1]
 211                set object [lindex $info 2]
 212
 213                switch -- $type {
 214                blob {
 215                        scan [lindex $info 0] %o mode
 216                        if {$mode == 0120000} {
 217                                set image ::browser::img_symlink
 218                        } elseif {($mode & 0100) != 0} {
 219                                set image ::browser::img_xblob
 220                        } else {
 221                                set image ::browser::img_rblob
 222                        }
 223                }
 224                tree {
 225                        set image ::browser::img_tree
 226                        append path /
 227                }
 228                default {
 229                        set image ::browser::img_unknown
 230                }
 231                }
 232
 233                if {$n > 0} {$w insert end "\n"}
 234                $w image create end \
 235                        -align center -padx 5 -pady 1 \
 236                        -name icon[incr n] \
 237                        -image $image
 238                $w insert end [escape_path $path]
 239                lappend browser_files [list $type $object $path]
 240        }
 241        $w conf -state disabled
 242
 243        if {[eof $fd]} {
 244                close $fd
 245                set browser_status Ready.
 246                set browser_busy 0
 247                set ls_buf {}
 248                if {$n > 0} {
 249                        $w tag add in_sel 1.0 2.0
 250                        focus -force $w
 251                }
 252        }
 253} ifdeleted {
 254        catch {close $fd}
 255}
 256
 257}
 258
 259class browser_open {
 260
 261field w              ; # widget path
 262field w_rev          ; # mega-widget to pick the initial revision
 263
 264constructor dialog {} {
 265        make_toplevel top w
 266        wm title $top "[appname] ([reponame]): Browse Branch Files"
 267        if {$top ne {.}} {
 268                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
 269        }
 270
 271        label $w.header \
 272                -text {Browse Branch Files} \
 273                -font font_uibold
 274        pack $w.header -side top -fill x
 275
 276        frame $w.buttons
 277        button $w.buttons.browse -text Browse \
 278                -default active \
 279                -command [cb _open]
 280        pack $w.buttons.browse -side right
 281        button $w.buttons.cancel -text {Cancel} \
 282                -command [list destroy $w]
 283        pack $w.buttons.cancel -side right -padx 5
 284        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
 285
 286        set w_rev [::choose_rev::new $w.rev {Revision}]
 287        $w_rev bind_listbox <Double-Button-1> [cb _open]
 288        pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
 289
 290        bind $w <Visibility> [cb _visible]
 291        bind $w <Key-Escape> [list destroy $w]
 292        bind $w <Key-Return> [cb _open]\;break
 293        tkwait window $w
 294}
 295
 296method _open {} {
 297        if {[catch {$w_rev commit_or_die} err]} {
 298                return
 299        }
 300        set name [$w_rev get]
 301        destroy $w
 302        browser::new $name
 303}
 304
 305method _visible {} {
 306        grab $w
 307        $w_rev focus_filter
 308}
 309
 310}