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 {R0lGODlhEAAQAIYAAPwCBFRWVFxaXNza3OTi3Nze3Ly2tJyanPz+/Ozq7GxubNzSxMzOzMTGxHRybDQyNLy+vHRydHx6fKSipISChIyKjGxqbERCRCwuLLy6vGRiZExKTCQiJAwKDLSytLy2rJSSlHx+fDw6PKyqrBQWFPTu5Ozm3LyulLS2tCQmJAQCBPTq3Ozi1MSynCwqLAQGBOTazOzizOzezLyqjBweHNzSvOzaxKyurHRuZNzOtLymhDw+PIyCdOzWvOTOpLyidNzKtOTStLyifMTCtMS+rLyedAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAAAALAAAAAAQABAAAAfZgACCAAEChYeGg4oCAwQFjgYBBwGKggEECJkICQoIkwADCwwNDY2mDA4Lng8QDhESsLARExQVDhYXGBkWExIaGw8cHR4SCQQfFQ8eFgUgIQEiwiMSBMYfGB4atwEXDyQd0wQlJicPKAHoFyIpJCoeDgMrLC0YKBsX6i4kL+4OMDEyZijr5oLGNxUqUCioEcPGDAwjPNyI6MEDChQjcOSwsUDHgw07RIgI4KCkAgs8cvTw8eOBogAxQtXIASTISiEuBwUYMoRIixYnZggpUgTDywdIkWJIitRPIAAh/mhDcmVhdGVkIGJ5IEJNUFRvR0lGIFBybyB2ZXJzaW9uIDIuNQ0KqSBEZXZlbENvciAxOTk3LDE5OTguIEFsbCByaWdodHMgcmVzZXJ2ZWQuDQpodHRwOi8vd3d3LmRldmVsY29yLmNvbQA7}
   9image create photo ::browser::img_tree    -data {R0lGODlhEAAQAIYAAPwCBAQCBExKTBwWHMzKzOzq7ERCRExGTCwqLARqnAQ+ZHR2dKyqrNTOzHx2fCQiJMTi9NTu9HzC3AxmnAQ+XPTm7Dy67DymzITC3IzG5AxypHRydKymrMzOzOzu7BweHByy9AyGtFyy1IzG3NTu/ARupFRSVByazBR6rAyGvFyuzJTK3MTm9BR+tAxWhHS61MTi7Pz+/IymvCxulBRelAx2rHS63Pz6/PTy9PTu9Nza3ISitBRupFSixNTS1CxqnDQyNMzGzOTi5MTCxMTGxGxubGxqbLy2vLSutGRiZLy6vLSytKyurDQuNFxaXKSipDw6PAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAAAALAAAAAAQABAAAAfDgACCAAECg4eIAAMEBQYHCImDBgkKCwwNBQIBBw4Bhw8QERITFJYEFQUFnoIPFhcYoRkaFBscHR4Ggh8gIRciEiMQJBkltCa6JyUoKSkXKhIrLCQYuQAPLS4TEyUhKb0qLzDVAjEFMjMuNBMoNcw21QY3ODkFOjs82RM1PfDzFRU3fOggcM7Fj2pAgggRokOHDx9DhhAZUqQaISBGhjwMEvEIkiIHEgUAkgSJkiNLmFSMJChAEydPGBSBwvJQgAc0/QQCACH+aENyZWF0ZWQgYnkgQk1QVG9HSUYgUHJvIHZlcnNpb24gMi41DQqpIERldmVsQ29yIDE5OTcsMTk5OC4gQWxsIHJpZ2h0cyByZXNlcnZlZC4NCmh0dHA6Ly93d3cuZGV2ZWxjb3IuY29tADs=}
  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        $w_list tag conf in_sel \
  51                -background [$w_list cget -foreground] \
  52                -foreground [$w_list cget -background]
  53        scrollbar $w.list.sbx -orient h -command [list $w_list xview]
  54        scrollbar $w.list.sby -orient v -command [list $w_list yview]
  55        pack $w.list.sbx -side bottom -fill x
  56        pack $w.list.sby -side right -fill y
  57        pack $w_list -side left -fill both -expand 1
  58        pack $w.list -side top -fill both -expand 1
  59
  60        label $w.status \
  61                -textvariable @browser_status \
  62                -anchor w \
  63                -justify left \
  64                -borderwidth 1 \
  65                -relief sunken
  66        pack $w.status -anchor w -side bottom -fill x
  67
  68        bind $w_list <Button-1>        "[cb _click 0 @%x,%y];break"
  69        bind $w_list <Double-Button-1> "[cb _click 1 @%x,%y];break"
  70        bind $w_list <$M1B-Up>         "[cb _parent]        ;break"
  71        bind $w_list <$M1B-Left>       "[cb _parent]        ;break"
  72        bind $w_list <Up>              "[cb _move -1]       ;break"
  73        bind $w_list <Down>            "[cb _move  1]       ;break"
  74        bind $w_list <$M1B-Right>      "[cb _enter]         ;break"
  75        bind $w_list <Return>          "[cb _enter]         ;break"
  76        bind $w_list <Prior>           "[cb _page -1]       ;break"
  77        bind $w_list <Next>            "[cb _page  1]       ;break"
  78        bind $w_list <Left>            break
  79        bind $w_list <Right>           break
  80
  81        bind $w_list <Visibility> [list focus $w_list]
  82        set w $w_list
  83        if {$path ne {}} {
  84                _ls $this $browser_commit:$path $path
  85        } else {
  86                _ls $this $browser_commit $path
  87        }
  88        return $this
  89}
  90
  91method _move {dir} {
  92        if {$browser_busy} return
  93        set lno [lindex [split [$w index in_sel.first] .] 0]
  94        incr lno $dir
  95        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
  96                $w tag remove in_sel 0.0 end
  97                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
  98                $w see $lno.0
  99        }
 100}
 101
 102method _page {dir} {
 103        if {$browser_busy} return
 104        $w yview scroll $dir pages
 105        set lno [expr {int(
 106                  [lindex [$w yview] 0]
 107                * [llength $browser_files]
 108                + 1)}]
 109        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
 110                $w tag remove in_sel 0.0 end
 111                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
 112                $w see $lno.0
 113        }
 114}
 115
 116method _parent {} {
 117        if {$browser_busy} return
 118        set info [lindex $browser_files 0]
 119        if {[lindex $info 0] eq {parent}} {
 120                set parent [lindex $browser_stack end-1]
 121                set browser_stack [lrange $browser_stack 0 end-2]
 122                if {$browser_stack eq {}} {
 123                        regsub {:.*$} $browser_path {:} browser_path
 124                } else {
 125                        regsub {/[^/]+$} $browser_path {} browser_path
 126                }
 127                set browser_status "Loading $browser_path..."
 128                _ls $this [lindex $parent 0] [lindex $parent 1]
 129        }
 130}
 131
 132method _enter {} {
 133        if {$browser_busy} return
 134        set lno [lindex [split [$w index in_sel.first] .] 0]
 135        set info [lindex $browser_files [expr {$lno - 1}]]
 136        if {$info ne {}} {
 137                switch -- [lindex $info 0] {
 138                parent {
 139                        _parent $this
 140                }
 141                tree {
 142                        set name [lindex $info 2]
 143                        set escn [escape_path $name]
 144                        set browser_status "Loading $escn..."
 145                        append browser_path $escn
 146                        _ls $this [lindex $info 1] $name
 147                }
 148                blob {
 149                        set name [lindex $info 2]
 150                        set p {}
 151                        foreach n $browser_stack {
 152                                append p [lindex $n 1]
 153                        }
 154                        append p $name
 155                        blame::new $browser_commit $p
 156                }
 157                }
 158        }
 159}
 160
 161method _click {was_double_click pos} {
 162        if {$browser_busy} return
 163        set lno [lindex [split [$w index $pos] .] 0]
 164        focus $w
 165
 166        if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
 167                $w tag remove in_sel 0.0 end
 168                $w tag add in_sel $lno.0 [expr {$lno + 1}].0
 169                if {$was_double_click} {
 170                        _enter $this
 171                }
 172        }
 173}
 174
 175method _ls {tree_id {name {}}} {
 176        set ls_buf {}
 177        set browser_files {}
 178        set browser_busy 1
 179
 180        $w conf -state normal
 181        $w tag remove in_sel 0.0 end
 182        $w delete 0.0 end
 183        if {$browser_stack ne {}} {
 184                $w image create end \
 185                        -align center -padx 5 -pady 1 \
 186                        -name icon0 \
 187                        -image ::browser::img_parent
 188                $w insert end {[Up To Parent]}
 189                lappend browser_files parent
 190        }
 191        lappend browser_stack [list $tree_id $name]
 192        $w conf -state disabled
 193
 194        set fd [git_read ls-tree -z $tree_id]
 195        fconfigure $fd -blocking 0 -translation binary -encoding binary
 196        fileevent $fd readable [cb _read $fd]
 197}
 198
 199method _read {fd} {
 200        append ls_buf [read $fd]
 201        set pck [split $ls_buf "\0"]
 202        set ls_buf [lindex $pck end]
 203
 204        set n [llength $browser_files]
 205        $w conf -state normal
 206        foreach p [lrange $pck 0 end-1] {
 207                set tab [string first "\t" $p]
 208                if {$tab == -1} continue
 209
 210                set info [split [string range $p 0 [expr {$tab - 1}]] { }]
 211                set path [string range $p [expr {$tab + 1}] end]
 212                set type   [lindex $info 1]
 213                set object [lindex $info 2]
 214
 215                switch -- $type {
 216                blob {
 217                        scan [lindex $info 0] %o mode
 218                        if {$mode == 0120000} {
 219                                set image ::browser::img_symlink
 220                        } elseif {($mode & 0100) != 0} {
 221                                set image ::browser::img_xblob
 222                        } else {
 223                                set image ::browser::img_rblob
 224                        }
 225                }
 226                tree {
 227                        set image ::browser::img_tree
 228                        append path /
 229                }
 230                default {
 231                        set image ::browser::img_unknown
 232                }
 233                }
 234
 235                if {$n > 0} {$w insert end "\n"}
 236                $w image create end \
 237                        -align center -padx 5 -pady 1 \
 238                        -name icon[incr n] \
 239                        -image $image
 240                $w insert end [escape_path $path]
 241                lappend browser_files [list $type $object $path]
 242        }
 243        $w conf -state disabled
 244
 245        if {[eof $fd]} {
 246                close $fd
 247                set browser_status Ready.
 248                set browser_busy 0
 249                set ls_buf {}
 250                if {$n > 0} {
 251                        $w tag add in_sel 1.0 2.0
 252                        focus -force $w
 253                }
 254        }
 255} ifdeleted {
 256        catch {close $fd}
 257}
 258
 259}
 260
 261class browser_open {
 262
 263field w              ; # widget path
 264field w_rev          ; # mega-widget to pick the initial revision
 265
 266constructor dialog {} {
 267        make_toplevel top w
 268        wm title $top "[appname] ([reponame]): Browse Branch Files"
 269        if {$top ne {.}} {
 270                wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
 271        }
 272
 273        label $w.header \
 274                -text {Browse Branch Files} \
 275                -font font_uibold
 276        pack $w.header -side top -fill x
 277
 278        frame $w.buttons
 279        button $w.buttons.browse -text Browse \
 280                -default active \
 281                -command [cb _open]
 282        pack $w.buttons.browse -side right
 283        button $w.buttons.cancel -text {Cancel} \
 284                -command [list destroy $w]
 285        pack $w.buttons.cancel -side right -padx 5
 286        pack $w.buttons -side bottom -fill x -pady 10 -padx 10
 287
 288        set w_rev [::choose_rev::new $w.rev {Revision}]
 289        $w_rev bind_listbox <Double-Button-1> [cb _open]
 290        pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
 291
 292        bind $w <Visibility> [cb _visible]
 293        bind $w <Key-Escape> [list destroy $w]
 294        bind $w <Key-Return> [cb _open]\;break
 295        tkwait window $w
 296}
 297
 298method _open {} {
 299        if {[catch {$w_rev commit_or_die} err]} {
 300                return
 301        }
 302        set name [$w_rev get]
 303        destroy $w
 304        browser::new $name
 305}
 306
 307method _visible {} {
 308        grab $w
 309        $w_rev focus_filter
 310}
 311
 312}