git-gui/lib/blame.tcl

   1 # git-gui blame viewer
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 class blame {
   5
   6 image create photo ::blame::img_back_arrow -data {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}
   7
   8 # Persistent data (survives loads)
   9 #
  10 field history {}; # viewer history: {commit path}
  11 field header    ; # array commit,key -> header field
  12
  13 # Tk UI control paths
  14 #
  15 field w          ; # top window in this viewer
  16 field w_back     ; # our back button
  17 field w_path     ; # label showing the current file path
  18 field w_columns  ; # list of all column widgets in the viewer
  19 field w_line     ; # text column: all line numbers
  20 field w_amov     ; # text column: annotations + move tracking
  21 field w_asim     ; # text column: annotations (simple computation)
  22 field w_file     ; # text column: actual file data
  23 field w_cviewer  ; # pane showing commit message
  24 field finder     ; # find mini-dialog frame
  25 field gotoline   ; # line goto mini-dialog frame
  26 field status     ; # status mega-widget instance
  27 field status_operation ; # operation displayed by status mega-widget
  28 field old_height ; # last known height of $w.file_pane
  29
  30
  31 # Tk UI colors
  32 #
  33 variable active_color #c0edc5
  34 variable group_colors {
  35         #d6d6d6
  36         #e1e1e1
  37         #ececec
  38 }
  39
  40 # Current blame data; cleared/reset on each load
  41 #
  42 field commit               ; # input commit to blame
  43 field path                 ; # input filename to view in $commit
  44
  45 field current_fd        {} ; # background process running
  46 field highlight_line    -1 ; # current line selected
  47 field highlight_column  {} ; # current commit column selected
  48 field highlight_commit  {} ; # sha1 of commit selected
  49
  50 field total_lines       0  ; # total length of file
  51 field blame_lines       0  ; # number of lines computed
  52 field amov_data            ; # list of {commit origfile origline}
  53 field asim_data            ; # list of {commit origfile origline}
  54
  55 field r_commit             ; # commit currently being parsed
  56 field r_orig_line          ; # original line number
  57 field r_final_line         ; # final line number
  58 field r_line_count         ; # lines in this region
  59
  60 field tooltip_wm        {} ; # Current tooltip toplevel, if open
  61 field tooltip_t         {} ; # Text widget in $tooltip_wm
  62 field tooltip_timer     {} ; # Current timer event for our tooltip
  63 field tooltip_commit    {} ; # Commit(s) in tooltip
  64
  65 constructor new {i_commit i_path i_jump} {
  66         global cursor_ptr M1B M1T have_tk85 use_ttk NS
  67         variable active_color
  68         variable group_colors
  69
  70         set commit $i_commit
  71         set path   $i_path
  72
  73         make_toplevel top w
  74         wm title $top [mc "%s (%s): File Viewer" [appname] [reponame]]
  75
  76         set font_w [font measure font_diff "0"]
  77
  78         gold_frame $w.header
  79         tlabel $w.header.commit_l \
  80                 -text [mc "Commit:"] \
  81                 -background gold \
  82                 -foreground black \
  83                 -anchor w \
  84                 -justify left
  85         set w_back $w.header.commit_b
  86         tlabel $w_back \
  87                 -image ::blame::img_back_arrow \
  88                 -borderwidth 0 \
  89                 -relief flat \
  90                 -state disabled \
  91                 -background gold \
  92                 -foreground black \
  93                 -activebackground gold
  94         bind $w_back <Button-1> "
  95                 if {\[$w_back cget -state\] eq {normal}} {
  96                         [cb _history_menu]
  97                 }
  98                 "
  99         tlabel $w.header.commit \
 100                 -textvariable @commit \
 101                 -background gold \
 102                 -foreground black \
 103                 -anchor w \
 104                 -justify left
 105         tlabel $w.header.path_l \
 106                 -text [mc "File:"] \
 107                 -background gold \
 108                 -foreground black \
 109                 -anchor w \
 110                 -justify left
 111         set w_path $w.header.path
 112         tlabel $w_path \
 113                 -background gold \
 114                 -foreground black \
 115                 -anchor w \
 116                 -justify left
 117         pack $w.header.commit_l -side left
 118         pack $w_back -side left
 119         pack $w.header.commit -side left
 120         pack $w_path -fill x -side right
 121         pack $w.header.path_l -side right
 122
 123         panedwindow $w.file_pane -orient vertical -borderwidth 0 -sashwidth 3
 124         frame $w.file_pane.out -relief flat -borderwidth 1
 125         frame $w.file_pane.cm -relief sunken -borderwidth 1
 126         $w.file_pane add $w.file_pane.out \
 127                 -sticky nsew \
 128                 -minsize 100 \
 129                 -height 100 \
 130                 -width 100
 131         $w.file_pane add $w.file_pane.cm \
 132                 -sticky nsew \
 133                 -minsize 25 \
 134                 -height 25 \
 135                 -width 100
 136
 137         set w_line $w.file_pane.out.linenumber_t
 138         text $w_line \
 139                 -takefocus 0 \
 140                 -highlightthickness 0 \
 141                 -padx 0 -pady 0 \
 142                 -background white \
 143                 -foreground black \
 144                 -borderwidth 0 \
 145                 -state disabled \
 146                 -wrap none \
 147                 -height 40 \
 148                 -width 6 \
 149                 -font font_diff
 150         $w_line tag conf linenumber -justify right -rmargin 5
 151
 152         set w_amov $w.file_pane.out.amove_t
 153         text $w_amov \
 154                 -takefocus 0 \
 155                 -highlightthickness 0 \
 156                 -padx 0 -pady 0 \
 157                 -background white \
 158                 -foreground black \
 159                 -borderwidth 0 \
 160                 -state disabled \
 161                 -wrap none \
 162                 -height 40 \
 163                 -width 5 \
 164                 -font font_diff
 165         $w_amov tag conf author_abbr -justify right -rmargin 5
 166         $w_amov tag conf curr_commit
 167         $w_amov tag conf prior_commit -foreground blue -underline 1
 168         $w_amov tag bind prior_commit \
 169                 <Button-1> \
 170                 "[cb _load_commit $w_amov @amov_data @%x,%y];break"
 171
 172         set w_asim $w.file_pane.out.asimple_t
 173         text $w_asim \
 174                 -takefocus 0 \
 175                 -highlightthickness 0 \
 176                 -padx 0 -pady 0 \
 177                 -background white \
 178                 -foreground black \
 179                 -borderwidth 0 \
 180                 -state disabled \
 181                 -wrap none \
 182                 -height 40 \
 183                 -width 4 \
 184                 -font font_diff
 185         $w_asim tag conf author_abbr -justify right
 186         $w_asim tag conf curr_commit
 187         $w_asim tag conf prior_commit -foreground blue -underline 1
 188         $w_asim tag bind prior_commit \
 189                 <Button-1> \
 190                 "[cb _load_commit $w_asim @asim_data @%x,%y];break"
 191
 192         set w_file $w.file_pane.out.file_t
 193         text $w_file \
 194                 -takefocus 0 \
 195                 -highlightthickness 0 \
 196                 -padx 0 -pady 0 \
 197                 -background white \
 198                 -foreground black \
 199                 -borderwidth 0 \
 200                 -state disabled \
 201                 -wrap none \
 202                 -height 40 \
 203                 -width 80 \
 204                 -xscrollcommand [list $w.file_pane.out.sbx set] \
 205                 -font font_diff
 206         if {$have_tk85} {
 207                 $w_file configure -inactiveselectbackground darkblue
 208         }
 209         $w_file tag conf found \
 210                 -background yellow
 211
 212         set w_columns [list $w_amov $w_asim $w_line $w_file]
 213
 214         ${NS}::scrollbar $w.file_pane.out.sbx \
 215                 -orient h \
 216                 -command [list $w_file xview]
 217         ${NS}::scrollbar $w.file_pane.out.sby \
 218                 -orient v \
 219                 -command [list scrollbar2many $w_columns yview]
 220         eval grid $w_columns $w.file_pane.out.sby -sticky nsew
 221         grid conf \
 222                 $w.file_pane.out.sbx \
 223                 -column 0 \
 224                 -columnspan [expr {[llength $w_columns] + 1}] \
 225                 -sticky we
 226         grid columnconfigure \
 227                 $w.file_pane.out \
 228                 [expr {[llength $w_columns] - 1}] \
 229                 -weight 1
 230         grid rowconfigure $w.file_pane.out 0 -weight 1
 231
 232         set finder [::searchbar::new \
 233                 $w.file_pane.out.ff $w_file \
 234                 -column 0 \
 235                 -columnspan [expr {[llength $w_columns] + 1}] \
 236                 ]
 237
 238         set gotoline [::linebar::new \
 239                 $w.file_pane.out.lf $w_file \
 240                 -column 0 \
 241                 -columnspan [expr {[llength $w_columns] + 1}] \
 242                 ]
 243
 244         set w_cviewer $w.file_pane.cm.t
 245         text $w_cviewer \
 246                 -background white \
 247                 -foreground black \
 248                 -borderwidth 0 \
 249                 -state disabled \
 250                 -wrap none \
 251                 -height 10 \
 252                 -width 80 \
 253                 -xscrollcommand [list $w.file_pane.cm.sbx set] \
 254                 -yscrollcommand [list $w.file_pane.cm.sby set] \
 255                 -font font_diff
 256         $w_cviewer tag conf still_loading \
 257                 -font font_uiitalic \
 258                 -justify center
 259         $w_cviewer tag conf header_key \
 260                 -tabs {3c} \
 261                 -background $active_color \
 262                 -font font_uibold
 263         $w_cviewer tag conf header_val \
 264                 -background $active_color \
 265                 -font font_ui
 266         $w_cviewer tag raise sel
 267         ${NS}::scrollbar $w.file_pane.cm.sbx \
 268                 -orient h \
 269                 -command [list $w_cviewer xview]
 270         ${NS}::scrollbar $w.file_pane.cm.sby \
 271                 -orient v \
 272                 -command [list $w_cviewer yview]
 273         pack $w.file_pane.cm.sby -side right -fill y
 274         pack $w.file_pane.cm.sbx -side bottom -fill x
 275         pack $w_cviewer -expand 1 -fill both
 276
 277         set status [::status_bar::new $w.status]
 278         set status_operation {}
 279
 280         menu $w.ctxm -tearoff 0
 281         $w.ctxm add command \
 282                 -label [mc "Copy Commit"] \
 283                 -command [cb _copycommit]
 284         $w.ctxm add separator
 285         $w.ctxm add command \
 286                 -label [mc "Find Text..."] \
 287                 -accelerator F7 \
 288                 -command [cb _show_finder]
 289         $w.ctxm add command \
 290                 -label [mc "Goto Line..."] \
 291                 -accelerator "Ctrl-G" \
 292                 -command [cb _show_linebar]
 293         menu $w.ctxm.enc
 294         build_encoding_menu $w.ctxm.enc [cb _setencoding]
 295         $w.ctxm add cascade \
 296                 -label [mc "Encoding"] \
 297                 -menu $w.ctxm.enc
 298         $w.ctxm add command \
 299                 -label [mc "Do Full Copy Detection"] \
 300                 -command [cb _fullcopyblame]
 301         $w.ctxm add separator
 302         $w.ctxm add command \
 303                 -label [mc "Show History Context"] \
 304                 -command [cb _gitkcommit]
 305         $w.ctxm add command \
 306                 -label [mc "Blame Parent Commit"] \
 307                 -command [cb _blameparent]
 308
 309         foreach i $w_columns {
 310                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 311                         $i tag conf color$g -background [lindex $group_colors $g]
 312                 }
 313
 314                 if {$i eq $w_file} {
 315                         $w_file tag raise found
 316                 }
 317                 $i tag raise sel
 318
 319                 $i conf -cursor $cursor_ptr
 320                 $i conf -yscrollcommand \
 321                         "[list ::searchbar::scrolled $finder]
 322                          [list many2scrollbar $w_columns yview $w.file_pane.out.sby]"
 323                 bind $i <Button-1> "
 324                         [cb _hide_tooltip]
 325                         [cb _click $i @%x,%y]
 326                         focus $i
 327                 "
 328                 bind $i <Any-Motion>  [cb _show_tooltip $i @%x,%y]
 329                 bind $i <Any-Enter>   [cb _hide_tooltip]
 330                 bind $i <Any-Leave>   [cb _hide_tooltip]
 331                 bind $i <Deactivate>  [cb _hide_tooltip]
 332                 bind_button3 $i "
 333                         [cb _hide_tooltip]
 334                         set cursorX %x
 335                         set cursorY %y
 336                         set cursorW %W
 337                         tk_popup $w.ctxm %X %Y
 338                 "
 339                 bind $i <Shift-Tab> "[list focus $w_cviewer];break"
 340                 bind $i <Tab>       "[cb _focus_search $w_cviewer];break"
 341         }
 342
 343         foreach i [concat $w_columns $w_cviewer] {
 344                 bind $i <Key-Up>        {catch {%W yview scroll -1 units};break}
 345                 bind $i <Key-Down>      {catch {%W yview scroll  1 units};break}
 346                 bind $i <Key-Left>      {catch {%W xview scroll -1 units};break}
 347                 bind $i <Key-Right>     {catch {%W xview scroll  1 units};break}
 348                 bind $i <Key-k>         {catch {%W yview scroll -1 units};break}
 349                 bind $i <Key-j>         {catch {%W yview scroll  1 units};break}
 350                 bind $i <Key-h>         {catch {%W xview scroll -1 units};break}
 351                 bind $i <Key-l>         {catch {%W xview scroll  1 units};break}
 352                 bind $i <Control-Key-b> {catch {%W yview scroll -1 pages};break}
 353                 bind $i <Control-Key-f> {catch {%W yview scroll  1 pages};break}
 354         }
 355
 356         bind $w_cviewer <Shift-Tab> "[cb _focus_search $w_file];break"
 357         bind $w_cviewer <Tab>       "[list focus $w_file];break"
 358         bind $w_cviewer <Button-1>   [list focus $w_cviewer]
 359         bind $w_file    <Visibility> [cb _focus_search $w_file]
 360         bind $top       <F7>         [cb _show_finder]
 361         bind $top       <Key-slash>  [cb _show_finder]
 362         bind $top    <Control-Key-s> [cb _show_finder]
 363         bind $top       <Escape>     [list searchbar::hide $finder]
 364         bind $top       <F3>         [list searchbar::find_next $finder]
 365         bind $top       <Shift-F3>   [list searchbar::find_prev $finder]
 366         bind $top    <Control-Key-g> [cb _show_linebar]
 367         catch { bind $top <Shift-Key-XF86_Switch_VT_3> [list searchbar::find_prev $finder] }
 368
 369         grid configure $w.header -sticky ew
 370         grid configure $w.file_pane -sticky nsew
 371         grid configure $w.status -sticky ew
 372         grid columnconfigure $top 0 -weight 1
 373         grid rowconfigure $top 0 -weight 0
 374         grid rowconfigure $top 1 -weight 1
 375         grid rowconfigure $top 2 -weight 0
 376
 377         set req_w [winfo reqwidth  $top]
 378         set req_h [winfo reqheight $top]
 379         set scr_w [expr {[winfo screenwidth $top] - 40}]
 380         set scr_h [expr {[winfo screenheight $top] - 120}]
 381         set opt_w [expr {$font_w * (80 + 5*3 + 3)}]
 382         if {$req_w < $opt_w} {set req_w $opt_w}
 383         if {$req_w > $scr_w} {set req_w $scr_w}
 384         set opt_h [expr {$req_w*4/3}]
 385         if {$req_h < $scr_h} {set req_h $scr_h}
 386         if {$req_h > $opt_h} {set req_h $opt_h}
 387         set g "${req_w}x${req_h}"
 388         wm geometry $top $g
 389         update
 390
 391         set old_height [winfo height $w.file_pane]
 392         $w.file_pane sash place 0 \
 393                 [lindex [$w.file_pane sash coord 0] 0] \
 394                 [expr {int($old_height * 0.80)}]
 395         bind $w.file_pane <Configure> \
 396         "if {{$w.file_pane} eq {%W}} {[cb _resize %h]}"
 397
 398         wm protocol $top WM_DELETE_WINDOW "destroy $top"
 399         bind $top <Destroy> [cb _handle_destroy %W]
 400
 401         _load $this $i_jump
 402 }
 403
 404 method _focus_search {win} {
 405         if {[searchbar::visible $finder]} {
 406                 focus [searchbar::editor $finder]
 407         } else {
 408                 focus $win
 409         }
 410 }
 411
 412 method _handle_destroy {win} {
 413         if {$win eq $w} {
 414                 _kill $this
 415                 delete_this
 416         }
 417 }
 418
 419 method _kill {} {
 420         if {$current_fd ne {}} {
 421                 kill_file_process $current_fd
 422                 catch {close $current_fd}
 423                 set current_fd {}
 424         }
 425 }
 426
 427 method _load {jump} {
 428         variable group_colors
 429
 430         _hide_tooltip $this
 431
 432         if {$total_lines != 0 || $current_fd ne {}} {
 433                 _kill $this
 434
 435                 foreach i $w_columns {
 436                         $i conf -state normal
 437                         $i delete 0.0 end
 438                         foreach g [$i tag names] {
 439                                 if {[regexp {^g[0-9a-f]{40}$} $g]} {
 440                                         $i tag delete $g
 441                                 }
 442                         }
 443                         $i conf -state disabled
 444                 }
 445
 446                 $w_cviewer conf -state normal
 447                 $w_cviewer delete 0.0 end
 448                 $w_cviewer conf -state disabled
 449
 450                 set highlight_line -1
 451                 set highlight_column {}
 452                 set highlight_commit {}
 453                 set total_lines 0
 454         }
 455
 456         if {$history eq {}} {
 457                 $w_back conf -state disabled
 458         } else {
 459                 $w_back conf -state normal
 460         }
 461
 462         # Index 0 is always empty.  There is never line 0 as
 463         # we use only 1 based lines, as that matches both with
 464         # git-blame output and with Tk's text widget.
 465         #
 466         set amov_data [list [list]]
 467         set asim_data [list [list]]
 468
 469         $status show [mc "Reading %s..." "$commit:[escape_path $path]"]
 470         $w_path conf -text [escape_path $path]
 471
 472         set do_textconv 0
 473         if {![is_config_false gui.textconv] && [git-version >= 1.7.2]} {
 474                 set filter [gitattr $path diff set]
 475                 set textconv [get_config [join [list diff $filter textconv] .]]
 476                 if {$filter ne {set} && $textconv ne {}} {
 477                         set do_textconv 1
 478                 }
 479         }
 480         if {$commit eq {}} {
 481                 if {$do_textconv ne 0} {
 482                         set fd [open_cmd_pipe $textconv $path]
 483                 } else {
 484                         set fd [open $path r]
 485                 }
 486                 fconfigure $fd -eofchar {}
 487         } else {
 488                 if {$do_textconv ne 0} {
 489                         set fd [git_read cat-file --textconv "$commit:$path"]
 490                 } else {
 491                         set fd [git_read cat-file blob "$commit:$path"]
 492                 }
 493         }
 494         fconfigure $fd \
 495                 -blocking 0 \
 496                 -translation lf \
 497                 -encoding [get_path_encoding $path]
 498         fileevent $fd readable [cb _read_file $fd $jump]
 499         set current_fd $fd
 500 }
 501
 502 method _history_menu {} {
 503         set m $w.backmenu
 504         if {[winfo exists $m]} {
 505                 $m delete 0 end
 506         } else {
 507                 menu $m -tearoff 0
 508         }
 509
 510         for {set i [expr {[llength $history] - 1}]
 511                 } {$i >= 0} {incr i -1} {
 512                 set e [lindex $history $i]
 513                 set c [lindex $e 0]
 514                 set f [lindex $e 1]
 515
 516                 if {[regexp {^[0-9a-f]{40}$} $c]} {
 517                         set t [string range $c 0 8]...
 518                 } elseif {$c eq {}} {
 519                         set t {Working Directory}
 520                 } else {
 521                         set t $c
 522                 }
 523                 if {![catch {set summary $header($c,summary)}]} {
 524                         append t " $summary"
 525                         if {[string length $t] > 70} {
 526                                 set t [string range $t 0 66]...
 527                         }
 528                 }
 529
 530                 $m add command -label $t -command [cb _goback $i]
 531         }
 532         set X [winfo rootx $w_back]
 533         set Y [expr {[winfo rooty $w_back] + [winfo height $w_back]}]
 534         tk_popup $m $X $Y
 535 }
 536
 537 method _goback {i} {
 538         set dat [lindex $history $i]
 539         set history [lrange $history 0 [expr {$i - 1}]]
 540         set commit [lindex $dat 0]
 541         set path [lindex $dat 1]
 542         _load $this [lrange $dat 2 5]
 543 }
 544
 545 method _read_file {fd jump} {
 546         if {$fd ne $current_fd} {
 547                 catch {close $fd}
 548                 return
 549         }
 550
 551         foreach i $w_columns {$i conf -state normal}
 552         while {[gets $fd line] >= 0} {
 553                 regsub "\r\$" $line {} line
 554                 incr total_lines
 555                 lappend amov_data {}
 556                 lappend asim_data {}
 557
 558                 if {$total_lines > 1} {
 559                         foreach i $w_columns {$i insert end "\n"}
 560                 }
 561
 562                 $w_line insert end "$total_lines" linenumber
 563                 $w_file insert end "$line"
 564         }
 565
 566         set ln_wc [expr {[string length $total_lines] + 2}]
 567         if {[$w_line cget -width] < $ln_wc} {
 568                 $w_line conf -width $ln_wc
 569         }
 570
 571         foreach i $w_columns {$i conf -state disabled}
 572
 573         if {[eof $fd]} {
 574                 fconfigure $fd -blocking 1; # enable error reporting on close
 575                 if {[catch {close $fd} err]} {
 576                         tk_messageBox -icon error -title [mc Error] \
 577                                 -message $err
 578                 }
 579
 580                 # If we don't force Tk to update the widgets *right now*
 581                 # none of our jump commands will cause a change in the UI.
 582                 #
 583                 update
 584
 585                 if {[llength $jump] == 1} {
 586                         set highlight_line [lindex $jump 0]
 587                         $w_file see "$highlight_line.0"
 588                 } elseif {[llength $jump] == 4} {
 589                         set highlight_column [lindex $jump 0]
 590                         set highlight_line [lindex $jump 1]
 591                         $w_file xview moveto [lindex $jump 2]
 592                         $w_file yview moveto [lindex $jump 3]
 593                 }
 594
 595                 _exec_blame $this $w_asim @asim_data \
 596                         [list] \
 597                         [mc "Loading copy/move tracking annotations..."]
 598         }
 599 } ifdeleted { catch {close $fd} }
 600
 601 method _exec_blame {cur_w cur_d options cur_s} {
 602         lappend options --incremental --encoding=utf-8
 603         if {$commit eq {}} {
 604                 lappend options --contents $path
 605         } else {
 606                 lappend options $commit
 607         }
 608
 609         # We may recurse in from another call to _exec_blame and already have
 610         # a status operation.
 611         if {$status_operation == {}} {
 612                 set status_operation [$status start \
 613                         $cur_s \
 614                         [mc "lines annotated"]]
 615         } else {
 616                 $status_operation restart $cur_s
 617         }
 618
 619         lappend options -- $path
 620         set fd [eval git_read --nice blame $options]
 621         fconfigure $fd -blocking 0 -translation lf -encoding utf-8
 622         fileevent $fd readable [cb _read_blame $fd $cur_w $cur_d]
 623         set current_fd $fd
 624         set blame_lines 0
 625 }
 626
 627 method _read_blame {fd cur_w cur_d} {
 628         upvar #0 $cur_d line_data
 629         variable group_colors
 630
 631         if {$fd ne $current_fd} {
 632                 catch {close $fd}
 633                 return
 634         }
 635
 636         $cur_w conf -state normal
 637         while {[gets $fd line] >= 0} {
 638                 if {[regexp {^([a-z0-9]{40}) (\d+) (\d+) (\d+)$} $line line \
 639                         cmit original_line final_line line_count]} {
 640                         set r_commit     $cmit
 641                         set r_orig_line  $original_line
 642                         set r_final_line $final_line
 643                         set r_line_count $line_count
 644                 } elseif {[string match {filename *} $line]} {
 645                         set file [string range $line 9 end]
 646                         set n    $r_line_count
 647                         set lno  $r_final_line
 648                         set oln  $r_orig_line
 649                         set cmit $r_commit
 650
 651                         if {[regexp {^0{40}$} $cmit]} {
 652                                 set commit_abbr work
 653                                 set commit_type curr_commit
 654                         } elseif {$cmit eq $commit} {
 655                                 set commit_abbr this
 656                                 set commit_type curr_commit
 657                         } else {
 658                                 set commit_type prior_commit
 659                                 set commit_abbr [string range $cmit 0 3]
 660                         }
 661
 662                         set author_abbr {}
 663                         set a_name {}
 664                         catch {set a_name $header($cmit,author)}
 665                         while {$a_name ne {}} {
 666                                 if {$author_abbr ne {}
 667                                         && [string index $a_name 0] eq {'}} {
 668                                         regsub {^'[^']+'\s+} $a_name {} a_name
 669                                 }
 670                                 if {![regexp {^([[:upper:]])} $a_name _a]} break
 671                                 append author_abbr $_a
 672                                 unset _a
 673                                 if {![regsub \
 674                                         {^[[:upper:]][^\s]*\s+} \
 675                                         $a_name {} a_name ]} break
 676                         }
 677                         if {$author_abbr eq {}} {
 678                                 set author_abbr { |}
 679                         } else {
 680                                 set author_abbr [string range $author_abbr 0 3]
 681                         }
 682                         unset a_name
 683
 684                         set first_lno $lno
 685                         while {
 686                            $first_lno > 1
 687                         && $cmit eq [lindex $line_data [expr {$first_lno - 1}] 0]
 688                         && $file eq [lindex $line_data [expr {$first_lno - 1}] 1]
 689                         } {
 690                                 incr first_lno -1
 691                         }
 692
 693                         set color {}
 694                         if {$first_lno < $lno} {
 695                                 foreach g [$w_file tag names $first_lno.0] {
 696                                         if {[regexp {^color[0-9]+$} $g]} {
 697                                                 set color $g
 698                                                 break
 699                                         }
 700                                 }
 701                         } else {
 702                                 set i [lsort [concat \
 703                                         [$w_file tag names "[expr {$first_lno - 1}].0"] \
 704                                         [$w_file tag names "[expr {$lno + $n}].0"] \
 705                                         ]]
 706                                 for {set g 0} {$g < [llength $group_colors]} {incr g} {
 707                                         if {[lsearch -sorted -exact $i color$g] == -1} {
 708                                                 set color color$g
 709                                                 break
 710                                         }
 711                                 }
 712                         }
 713                         if {$color eq {}} {
 714                                 set color color0
 715                         }
 716
 717                         while {$n > 0} {
 718                                 set lno_e "$lno.0 lineend + 1c"
 719                                 if {[lindex $line_data $lno] ne {}} {
 720                                         set g [lindex $line_data $lno 0]
 721                                         foreach i $w_columns {
 722                                                 $i tag remove g$g $lno.0 $lno_e
 723                                         }
 724                                 }
 725                                 lset line_data $lno [list $cmit $file $oln]
 726
 727                                 $cur_w delete $lno.0 "$lno.0 lineend"
 728                                 if {$lno == $first_lno} {
 729                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 730                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 731                                         $cur_w insert $lno.0 $author_abbr author_abbr
 732                                 } else {
 733                                         $cur_w insert $lno.0 { |}
 734                                 }
 735
 736                                 foreach i $w_columns {
 737                                         if {$cur_w eq $w_amov} {
 738                                                 for {set g 0} \
 739                                                         {$g < [llength $group_colors]} \
 740                                                         {incr g} {
 741                                                         $i tag remove color$g $lno.0 $lno_e
 742                                                 }
 743                                                 $i tag add $color $lno.0 $lno_e
 744                                         }
 745                                         $i tag add g$cmit $lno.0 $lno_e
 746                                 }
 747
 748                                 if {$highlight_column eq $cur_w} {
 749                                         if {$highlight_line == -1
 750                                          && [lindex [$w_file yview] 0] == 0} {
 751                                                 $w_file see $lno.0
 752                                                 set highlight_line $lno
 753                                         }
 754                                         if {$highlight_line == $lno} {
 755                                                 _showcommit $this $cur_w $lno
 756                                         }
 757                                 }
 758
 759                                 incr n -1
 760                                 incr lno
 761                                 incr oln
 762                                 incr blame_lines
 763                         }
 764
 765                         while {
 766                            $cmit eq [lindex $line_data $lno 0]
 767                         && $file eq [lindex $line_data $lno 1]
 768                         } {
 769                                 $cur_w delete $lno.0 "$lno.0 lineend"
 770
 771                                 if {$lno == $first_lno} {
 772                                         $cur_w insert $lno.0 $commit_abbr $commit_type
 773                                 } elseif {$lno == [expr {$first_lno + 1}]} {
 774                                         $cur_w insert $lno.0 $author_abbr author_abbr
 775                                 } else {
 776                                         $cur_w insert $lno.0 { |}
 777                                 }
 778
 779                                 if {$cur_w eq $w_amov} {
 780                                         foreach i $w_columns {
 781                                                 for {set g 0} \
 782                                                         {$g < [llength $group_colors]} \
 783                                                         {incr g} {
 784                                                         $i tag remove color$g $lno.0 $lno_e
 785                                                 }
 786                                                 $i tag add $color $lno.0 $lno_e
 787                                         }
 788                                 }
 789
 790                                 incr lno
 791                         }
 792
 793                 } elseif {[regexp {^([a-z-]+) (.*)$} $line line key data]} {
 794                         set header($r_commit,$key) $data
 795                 }
 796         }
 797         $cur_w conf -state disabled
 798
 799         if {[eof $fd]} {
 800                 close $fd
 801                 if {$cur_w eq $w_asim} {
 802                         # Switches for original location detection
 803                         set threshold [get_config gui.copyblamethreshold]
 804                         set original_options [list "-C$threshold"]
 805
 806                         if {![is_config_true gui.fastcopyblame]} {
 807                                 # thorough copy search; insert before the threshold
 808                                 set original_options [linsert $original_options 0 -C]
 809                         }
 810                         if {[git-version >= 1.5.3]} {
 811                                 lappend original_options -w ; # ignore indentation changes
 812                         }
 813
 814                         _exec_blame $this $w_amov @amov_data \
 815                                 $original_options \
 816                                 [mc "Loading original location annotations..."]
 817                 } else {
 818                         set current_fd {}
 819                         $status_operation stop [mc "Annotation complete."]
 820                         set status_operation {}
 821                 }
 822         } else {
 823                 $status_operation update $blame_lines $total_lines
 824         }
 825 } ifdeleted { catch {close $fd} }
 826
 827 method _find_commit_bound {data_list start_idx delta} {
 828         upvar #0 $data_list line_data
 829         set pos $start_idx
 830         set limit       [expr {[llength $line_data] - 1}]
 831         set base_commit [lindex $line_data $pos 0]
 832
 833         while {$pos > 0 && $pos < $limit} {
 834                 set new_pos [expr {$pos + $delta}]
 835                 if {[lindex $line_data $new_pos 0] ne $base_commit} {
 836                         return $pos
 837                 }
 838
 839                 set pos $new_pos
 840         }
 841
 842         return $pos
 843 }
 844
 845 method _fullcopyblame {} {
 846         if {$current_fd ne {}} {
 847                 tk_messageBox \
 848                         -icon error \
 849                         -type ok \
 850                         -title [mc "Busy"] \
 851                         -message [mc "Annotation process is already running."]
 852
 853                 return
 854         }
 855
 856         # Switches for original location detection
 857         set threshold [get_config gui.copyblamethreshold]
 858         set original_options [list -C -C "-C$threshold"]
 859
 860         if {[git-version >= 1.5.3]} {
 861                 lappend original_options -w ; # ignore indentation changes
 862         }
 863
 864         # Find the line range
 865         set pos @$::cursorX,$::cursorY
 866         set lno [lindex [split [$::cursorW index $pos] .] 0]
 867         set min_amov_lno [_find_commit_bound $this @amov_data $lno -1]
 868         set max_amov_lno [_find_commit_bound $this @amov_data $lno 1]
 869         set min_asim_lno [_find_commit_bound $this @asim_data $lno -1]
 870         set max_asim_lno [_find_commit_bound $this @asim_data $lno 1]
 871
 872         if {$min_asim_lno < $min_amov_lno} {
 873                 set min_amov_lno $min_asim_lno
 874         }
 875
 876         if {$max_asim_lno > $max_amov_lno} {
 877                 set max_amov_lno $max_asim_lno
 878         }
 879
 880         lappend original_options -L "$min_amov_lno,$max_amov_lno"
 881
 882         # Clear lines
 883         for {set i $min_amov_lno} {$i <= $max_amov_lno} {incr i} {
 884                 lset amov_data $i [list ]
 885         }
 886
 887         # Start the back-end process
 888         _exec_blame $this $w_amov @amov_data \
 889                 $original_options \
 890                 [mc "Running thorough copy detection..."]
 891 }
 892
 893 method _click {cur_w pos} {
 894         set lno [lindex [split [$cur_w index $pos] .] 0]
 895         _showcommit $this $cur_w $lno
 896 }
 897
 898 method _setencoding {enc} {
 899         force_path_encoding $path $enc
 900         _load $this [list \
 901                 $highlight_column \
 902                 $highlight_line \
 903                 [lindex [$w_file xview] 0] \
 904                 [lindex [$w_file yview] 0] \
 905                 ]
 906 }
 907
 908 method _load_commit {cur_w cur_d pos} {
 909         upvar #0 $cur_d line_data
 910         set lno [lindex [split [$cur_w index $pos] .] 0]
 911         set dat [lindex $line_data $lno]
 912         if {$dat ne {}} {
 913                 _load_new_commit $this  \
 914                         [lindex $dat 0] \
 915                         [lindex $dat 1] \
 916                         [list [lindex $dat 2]]
 917         }
 918 }
 919
 920 method _load_new_commit {new_commit new_path jump} {
 921         lappend history [list \
 922                 $commit $path \
 923                 $highlight_column \
 924                 $highlight_line \
 925                 [lindex [$w_file xview] 0] \
 926                 [lindex [$w_file yview] 0] \
 927                 ]
 928
 929         set commit $new_commit
 930         set path   $new_path
 931         _load $this $jump
 932 }
 933
 934 method _showcommit {cur_w lno} {
 935         global repo_config
 936         variable active_color
 937
 938         if {$highlight_commit ne {}} {
 939                 foreach i $w_columns {
 940                         $i tag conf g$highlight_commit -background {}
 941                         $i tag lower g$highlight_commit
 942                 }
 943         }
 944
 945         if {$cur_w eq $w_asim} {
 946                 set dat [lindex $asim_data $lno]
 947                 set highlight_column $w_asim
 948         } else {
 949                 set dat [lindex $amov_data $lno]
 950                 set highlight_column $w_amov
 951         }
 952
 953         $w_cviewer conf -state normal
 954         $w_cviewer delete 0.0 end
 955
 956         if {$dat eq {}} {
 957                 set cmit {}
 958                 $w_cviewer insert end [mc "Loading annotation..."] still_loading
 959         } else {
 960                 set cmit [lindex $dat 0]
 961                 set file [lindex $dat 1]
 962
 963                 foreach i $w_columns {
 964                         $i tag conf g$cmit -background $active_color
 965                         $i tag raise g$cmit
 966                         if {$i eq $w_file} {
 967                                 $w_file tag raise found
 968                         }
 969                         $i tag raise sel
 970                 }
 971
 972                 set author_name {}
 973                 set author_email {}
 974                 set author_time {}
 975                 catch {set author_name $header($cmit,author)}
 976                 catch {set author_email $header($cmit,author-mail)}
 977                 catch {set author_time [format_date $header($cmit,author-time)]}
 978
 979                 set committer_name {}
 980                 set committer_email {}
 981                 set committer_time {}
 982                 catch {set committer_name $header($cmit,committer)}
 983                 catch {set committer_email $header($cmit,committer-mail)}
 984                 catch {set committer_time [format_date $header($cmit,committer-time)]}
 985
 986                 if {[catch {set msg $header($cmit,message)}]} {
 987                         set msg {}
 988                         catch {
 989                                 set fd [git_read cat-file commit $cmit]
 990                                 fconfigure $fd -encoding binary -translation lf
 991                                 # By default commits are assumed to be in utf-8
 992                                 set enc utf-8
 993                                 while {[gets $fd line] > 0} {
 994                                         if {[string match {encoding *} $line]} {
 995                                                 set enc [string tolower [string range $line 9 end]]
 996                                         }
 997                                 }
 998                                 set msg [read $fd]
 999                                 close $fd
1000
1001                                 set enc [tcl_encoding $enc]
1002                                 if {$enc ne {}} {
1003                                         set msg [encoding convertfrom $enc $msg]
1004                                 }
1005                                 set msg [string trim $msg]
1006                         }
1007                         set header($cmit,message) $msg
1008                 }
1009
1010                 $w_cviewer insert end "commit $cmit\n" header_key
1011                 $w_cviewer insert end [strcat [mc "Author:"] "\t"] header_key
1012                 $w_cviewer insert end "$author_name $author_email" header_val
1013                 $w_cviewer insert end "  $author_time\n" header_val
1014
1015                 $w_cviewer insert end [strcat [mc "Committer:"] "\t"] header_key
1016                 $w_cviewer insert end "$committer_name $committer_email" header_val
1017                 $w_cviewer insert end "  $committer_time\n" header_val
1018
1019                 if {$file ne $path} {
1020                         $w_cviewer insert end [strcat [mc "Original File:"] "\t"] header_key
1021                         $w_cviewer insert end "[escape_path $file]\n" header_val
1022                 }
1023
1024                 $w_cviewer insert end "\n$msg"
1025         }
1026         $w_cviewer conf -state disabled
1027
1028         set highlight_line $lno
1029         set highlight_commit $cmit
1030
1031         if {[lsearch -exact $tooltip_commit $highlight_commit] != -1} {
1032                 _hide_tooltip $this
1033         }
1034 }
1035
1036 method _get_click_amov_info {} {
1037         set pos @$::cursorX,$::cursorY
1038         set lno [lindex [split [$::cursorW index $pos] .] 0]
1039         return [lindex $amov_data $lno]
1040 }
1041
1042 method _copycommit {} {
1043         set dat [_get_click_amov_info $this]
1044         if {$dat ne {}} {
1045                 clipboard clear
1046                 clipboard append \
1047                         -format STRING \
1048                         -type STRING \
1049                         -- [lindex $dat 0]
1050         }
1051 }
1052
1053 method _format_offset_date {base offset} {
1054         set exval [expr {$base + $offset*24*60*60}]
1055         return [clock format $exval -format {%Y-%m-%d}]
1056 }
1057
1058 method _gitkcommit {} {
1059         global nullid
1060
1061         set dat [_get_click_amov_info $this]
1062         if {$dat ne {}} {
1063                 set cmit [lindex $dat 0]
1064
1065                 # If the line belongs to the working copy, use HEAD instead
1066                 if {$cmit eq $nullid} {
1067                         if {[catch {set cmit [git rev-parse --verify HEAD]} err]} {
1068                                 error_popup [strcat [mc "Cannot find HEAD commit:"] "\n\n$err"]
1069                                 return;
1070                         }
1071                 }
1072
1073                 set radius [get_config gui.blamehistoryctx]
1074                 set cmdline [list --select-commit=$cmit]
1075
1076                 if {$radius > 0} {
1077                         set author_time {}
1078                         set committer_time {}
1079
1080                         catch {set author_time $header($cmit,author-time)}
1081                         catch {set committer_time $header($cmit,committer-time)}
1082
1083                         if {$committer_time eq {}} {
1084                                 set committer_time $author_time
1085                         }
1086
1087                         set after_time [_format_offset_date $this $committer_time [expr {-$radius}]]
1088                         set before_time [_format_offset_date $this $committer_time $radius]
1089
1090                         lappend cmdline --after=$after_time --before=$before_time
1091                 }
1092
1093                 lappend cmdline $cmit
1094
1095                 set base_rev "HEAD"
1096                 if {$commit ne {}} {
1097                         set base_rev $commit
1098                 }
1099
1100                 if {$base_rev ne $cmit} {
1101                         lappend cmdline $base_rev
1102                 }
1103
1104                 do_gitk $cmdline
1105         }
1106 }
1107
1108 method _blameparent {} {
1109         global nullid
1110
1111         set dat [_get_click_amov_info $this]
1112         if {$dat ne {}} {
1113                 set cmit [lindex $dat 0]
1114                 set new_path [lindex $dat 1]
1115
1116                 # Allow using Blame Parent on lines modified in the working copy
1117                 if {$cmit eq $nullid} {
1118                         set parent_ref "HEAD"
1119                 } else {
1120                         set parent_ref "$cmit^"
1121                 }
1122                 if {[catch {set cparent [git rev-parse --verify $parent_ref]} err]} {
1123                         error_popup [strcat [mc "Cannot find parent commit:"] "\n\n$err"]
1124                         return;
1125                 }
1126
1127                 _kill $this
1128
1129                 # Generate a diff between the commit and its parent,
1130                 # and use the hunks to update the line number.
1131                 # Request zero context to simplify calculations.
1132                 if {$cmit eq $nullid} {
1133                         set diffcmd [list diff-index --unified=0 $cparent -- $new_path]
1134                 } else {
1135                         set diffcmd [list diff-tree --unified=0 $cparent $cmit -- $new_path]
1136                 }
1137                 if {[catch {set fd [eval git_read $diffcmd]} err]} {
1138                         $status_operation stop [mc "Unable to display parent"]
1139                         error_popup [strcat [mc "Error loading diff:"] "\n\n$err"]
1140                         return
1141                 }
1142
1143                 set r_orig_line [lindex $dat 2]
1144
1145                 fconfigure $fd \
1146                         -blocking 0 \
1147                         -encoding binary \
1148                         -translation binary
1149                 fileevent $fd readable [cb _read_diff_load_commit \
1150                         $fd $cparent $new_path $r_orig_line]
1151                 set current_fd $fd
1152         }
1153 }
1154
1155 method _read_diff_load_commit {fd cparent new_path tline} {
1156         if {$fd ne $current_fd} {
1157                 catch {close $fd}
1158                 return
1159         }
1160
1161         while {[gets $fd line] >= 0} {
1162                 if {[regexp {^@@ -(\d+)(,(\d+))? \+(\d+)(,(\d+))? @@} $line line \
1163                         old_line osz old_size new_line nsz new_size]} {
1164
1165                         if {$osz eq {}} { set old_size 1 }
1166                         if {$nsz eq {}} { set new_size 1 }
1167
1168                         if {$new_line <= $tline} {
1169                                 if {[expr {$new_line + $new_size}] > $tline} {
1170                                         # Target line within the hunk
1171                                         set line_shift [expr {
1172                                                 ($new_size-$old_size)*($tline-$new_line)/$new_size
1173                                                 }]
1174                                 } else {
1175                                         set line_shift [expr {$new_size-$old_size}]
1176                                 }
1177
1178                                 set r_orig_line [expr {$r_orig_line - $line_shift}]
1179                         }
1180                 }
1181         }
1182
1183         if {[eof $fd]} {
1184                 close $fd
1185                 set current_fd {}
1186
1187                 _load_new_commit $this  \
1188                         $cparent        \
1189                         $new_path       \
1190                         [list $r_orig_line]
1191         }
1192 } ifdeleted { catch {close $fd} }
1193
1194 method _show_tooltip {cur_w pos} {
1195         if {$tooltip_wm ne {}} {
1196                 _open_tooltip $this $cur_w
1197         } elseif {$tooltip_timer eq {}} {
1198                 set tooltip_timer [after 1000 [cb _open_tooltip $cur_w]]
1199         }
1200 }
1201
1202 method _open_tooltip {cur_w} {
1203         set tooltip_timer {}
1204         set pos_x [winfo pointerx $cur_w]
1205         set pos_y [winfo pointery $cur_w]
1206         if {[winfo containing $pos_x $pos_y] ne $cur_w} {
1207                 _hide_tooltip $this
1208                 return
1209         }
1210
1211         if {$tooltip_wm ne "$cur_w.tooltip"} {
1212                 _hide_tooltip $this
1213
1214                 set tooltip_wm [toplevel $cur_w.tooltip -borderwidth 1]
1215                 catch {wm attributes $tooltip_wm -type tooltip}
1216                 wm overrideredirect $tooltip_wm 1
1217                 wm transient $tooltip_wm [winfo toplevel $cur_w]
1218                 set tooltip_t $tooltip_wm.label
1219                 text $tooltip_t \
1220                         -takefocus 0 \
1221                         -highlightthickness 0 \
1222                         -relief flat \
1223                         -borderwidth 0 \
1224                         -wrap none \
1225                         -background lightyellow \
1226                         -foreground black
1227                 $tooltip_t tag conf section_header -font font_uibold
1228                 pack $tooltip_t
1229         } else {
1230                 $tooltip_t conf -state normal
1231                 $tooltip_t delete 0.0 end
1232         }
1233
1234         set pos @[join [list \
1235                 [expr {$pos_x - [winfo rootx $cur_w]}] \
1236                 [expr {$pos_y - [winfo rooty $cur_w]}]] ,]
1237         set lno [lindex [split [$cur_w index $pos] .] 0]
1238         if {$cur_w eq $w_amov} {
1239                 set dat [lindex $amov_data $lno]
1240                 set org {}
1241         } else {
1242                 set dat [lindex $asim_data $lno]
1243                 set org [lindex $amov_data $lno]
1244         }
1245
1246         if {$dat eq {}} {
1247                 _hide_tooltip $this
1248                 return
1249         }
1250
1251         set cmit [lindex $dat 0]
1252         set tooltip_commit [list $cmit]
1253
1254         set author_name {}
1255         set summary     {}
1256         set author_time {}
1257         catch {set author_name $header($cmit,author)}
1258         catch {set summary     $header($cmit,summary)}
1259         catch {set author_time [format_date $header($cmit,author-time)]}
1260
1261         $tooltip_t insert end "commit $cmit\n"
1262         $tooltip_t insert end "$author_name  $author_time\n"
1263         $tooltip_t insert end "$summary"
1264
1265         if {$org ne {} && [lindex $org 0] ne $cmit} {
1266                 set save [$tooltip_t get 0.0 end]
1267                 $tooltip_t delete 0.0 end
1268
1269                 set cmit [lindex $org 0]
1270                 set file [lindex $org 1]
1271                 lappend tooltip_commit $cmit
1272
1273                 set author_name {}
1274                 set summary     {}
1275                 set author_time {}
1276                 catch {set author_name $header($cmit,author)}
1277                 catch {set summary     $header($cmit,summary)}
1278                 catch {set author_time [format_date $header($cmit,author-time)]}
1279
1280                 $tooltip_t insert end [strcat [mc "Originally By:"] "\n"] section_header
1281                 $tooltip_t insert end "commit $cmit\n"
1282                 $tooltip_t insert end "$author_name  $author_time\n"
1283                 $tooltip_t insert end "$summary\n"
1284
1285                 if {$file ne $path} {
1286                         $tooltip_t insert end [strcat [mc "In File:"] " "] section_header
1287                         $tooltip_t insert end "$file\n"
1288                 }
1289
1290                 $tooltip_t insert end "\n"
1291                 $tooltip_t insert end [strcat [mc "Copied Or Moved Here By:"] "\n"] section_header
1292                 $tooltip_t insert end $save
1293         }
1294
1295         $tooltip_t conf -state disabled
1296         _position_tooltip $this
1297
1298         # On MacOS raising a window causes it to acquire focus.
1299         # Tk 8.5 on MacOS seems to properly support wm transient,
1300         # so we can safely counter the effect there.
1301         if {$::have_tk85 && [is_MacOSX]} {
1302                 update
1303                 if {$w eq {}} {
1304                         raise .
1305                 } else {
1306                         raise $w
1307                 }
1308         }
1309 }
1310
1311 method _position_tooltip {} {
1312         set max_h [lindex [split [$tooltip_t index end] .] 0]
1313         set max_w 0
1314         for {set i 1} {$i <= $max_h} {incr i} {
1315                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
1316                 if {$c > $max_w} {set max_w $c}
1317         }
1318         $tooltip_t conf -width $max_w -height $max_h
1319
1320         set req_w [winfo reqwidth  $tooltip_t]
1321         set req_h [winfo reqheight $tooltip_t]
1322         set pos_x [expr {[winfo pointerx .] +  5}]
1323         set pos_y [expr {[winfo pointery .] + 10}]
1324
1325         set g "${req_w}x${req_h}"
1326         if {[tk windowingsystem] eq "win32" || $pos_x >= 0} {append g +}
1327         append g $pos_x
1328         if {[tk windowingsystem] eq "win32" || $pos_y >= 0} {append g +}
1329         append g $pos_y
1330
1331         wm geometry $tooltip_wm $g
1332         if {![is_MacOSX]} {
1333                 raise $tooltip_wm
1334         }
1335 }
1336
1337 method _hide_tooltip {} {
1338         if {$tooltip_wm ne {}} {
1339                 destroy $tooltip_wm
1340                 set tooltip_wm {}
1341                 set tooltip_commit {}
1342         }
1343         if {$tooltip_timer ne {}} {
1344                 after cancel $tooltip_timer
1345                 set tooltip_timer {}
1346         }
1347 }
1348
1349 method _resize {new_height} {
1350         set diff [expr {$new_height - $old_height}]
1351         if {$diff == 0} return
1352
1353         set my [expr {[winfo height $w.file_pane] - 25}]
1354         set o [$w.file_pane sash coord 0]
1355         set ox [lindex $o 0]
1356         set oy [expr {[lindex $o 1] + $diff}]
1357         if {$oy < 0}   {set oy 0}
1358         if {$oy > $my} {set oy $my}
1359         $w.file_pane sash place 0 $ox $oy
1360
1361         set old_height $new_height
1362 }
1363
1364 method _show_finder {} {
1365         linebar::hide $gotoline
1366         searchbar::show $finder
1367 }
1368
1369 method _show_linebar {} {
1370         searchbar::hide $finder
1371         linebar::show $gotoline
1372 }
1373
1374 }