lib/choose_rev.tcl

   1 # git-gui revision chooser
   2 # Copyright (C) 2006, 2007 Shawn Pearce
   3
   4 class choose_rev {
   5
   6 image create photo ::choose_rev::img_find -data {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}
   7
   8 field w               ; # our megawidget path
   9 field w_list          ; # list of currently filtered specs
  10 field w_filter        ; # filter entry for $w_list
  11
  12 field c_expr        {}; # current revision expression
  13 field filter          ; # current filter string
  14 field revtype     head; # type of revision chosen
  15 field cur_specs [list]; # list of specs for $revtype
  16 field spec_head       ; # list of all head specs
  17 field spec_trck       ; # list of all tracking branch specs
  18 field spec_tag        ; # list of all tag specs
  19 field tip_data        ; # array of tip commit info by refname
  20
  21 field tooltip_wm        {} ; # Current tooltip toplevel, if open
  22 field tooltip_t         {} ; # Text widget in $tooltip_wm
  23 field tooltip_timer     {} ; # Current timer event for our tooltip
  24
  25 proc new {path {title {}}} {
  26         return [_new $path 0 $title]
  27 }
  28
  29 proc new_unmerged {path {title {}}} {
  30         return [_new $path 1 $title]
  31 }
  32
  33 constructor _new {path unmerged_only title} {
  34         global current_branch is_detached
  35
  36         set w $path
  37
  38         if {$title ne {}} {
  39                 labelframe $w -text $title
  40         } else {
  41                 frame $w
  42         }
  43         bind $w <Destroy> [cb _delete %W]
  44
  45         if {$is_detached} {
  46                 radiobutton $w.detachedhead_r \
  47                         -anchor w \
  48                         -text {This Detached Checkout} \
  49                         -value HEAD \
  50                         -variable @revtype
  51                 grid $w.detachedhead_r -sticky we -padx {0 5} -columnspan 2
  52         }
  53
  54         radiobutton $w.expr_r \
  55                 -text {Revision Expression:} \
  56                 -value expr \
  57                 -variable @revtype
  58         entry $w.expr_t \
  59                 -borderwidth 1 \
  60                 -relief sunken \
  61                 -width 50 \
  62                 -textvariable @c_expr \
  63                 -validate key \
  64                 -validatecommand [cb _validate %d %S]
  65         grid $w.expr_r $w.expr_t -sticky we -padx {0 5}
  66
  67         frame $w.types
  68         radiobutton $w.types.head_r \
  69                 -text {Local Branch} \
  70                 -value head \
  71                 -variable @revtype
  72         pack $w.types.head_r -side left
  73         radiobutton $w.types.trck_r \
  74                 -text {Tracking Branch} \
  75                 -value trck \
  76                 -variable @revtype
  77         pack $w.types.trck_r -side left
  78         radiobutton $w.types.tag_r \
  79                 -text {Tag} \
  80                 -value tag \
  81                 -variable @revtype
  82         pack $w.types.tag_r -side left
  83         set w_filter $w.types.filter
  84         entry $w_filter \
  85                 -borderwidth 1 \
  86                 -relief sunken \
  87                 -width 12 \
  88                 -textvariable @filter \
  89                 -validate key \
  90                 -validatecommand [cb _filter %P]
  91         pack $w_filter -side right
  92         pack [label $w.types.filter_icon \
  93                 -image ::choose_rev::img_find \
  94                 ] -side right
  95         grid $w.types -sticky we -padx {0 5} -columnspan 2
  96
  97         frame $w.list
  98         set w_list $w.list.l
  99         listbox $w_list \
 100                 -font font_diff \
 101                 -width 50 \
 102                 -height 10 \
 103                 -selectmode browse \
 104                 -exportselection false \
 105                 -xscrollcommand [cb _sb_set $w.list.sbx h] \
 106                 -yscrollcommand [cb _sb_set $w.list.sby v]
 107         pack $w_list -fill both -expand 1
 108         grid $w.list -sticky nswe -padx {20 5} -columnspan 2
 109         bind $w_list <Any-Motion>  [cb _show_tooltip @%x,%y]
 110         bind $w_list <Any-Enter>   [cb _hide_tooltip]
 111         bind $w_list <Any-Leave>   [cb _hide_tooltip]
 112         bind $w_list <Destroy>     [cb _hide_tooltip]
 113
 114         grid columnconfigure $w 1 -weight 1
 115         if {$is_detached} {
 116                 grid rowconfigure $w 3 -weight 1
 117         } else {
 118                 grid rowconfigure $w 2 -weight 1
 119         }
 120
 121         trace add variable @revtype write [cb _select]
 122         bind $w_filter <Key-Return> [list focus $w_list]\;break
 123         bind $w_filter <Key-Down>   [list focus $w_list]
 124
 125         set fmt list
 126         append fmt { %(refname)}
 127         append fmt { [list}
 128         append fmt { %(objecttype)}
 129         append fmt { %(objectname)}
 130         append fmt { [concat %(taggername) %(authorname)]}
 131         append fmt { [concat %(taggerdate) %(authordate)]}
 132         append fmt { %(subject)}
 133         append fmt {] [list}
 134         append fmt { %(*objecttype)}
 135         append fmt { %(*objectname)}
 136         append fmt { %(*authorname)}
 137         append fmt { %(*authordate)}
 138         append fmt { %(*subject)}
 139         append fmt {]}
 140         set all_refn [list]
 141         set fr_fd [git_read for-each-ref \
 142                 --tcl \
 143                 --sort=-taggerdate \
 144                 --format=$fmt \
 145                 refs/heads \
 146                 refs/remotes \
 147                 refs/tags \
 148                 ]
 149         fconfigure $fr_fd -translation lf -encoding utf-8
 150         while {[gets $fr_fd line] > 0} {
 151                 set line [eval $line]
 152                 if {[lindex $line 1 0] eq {tag}} {
 153                         if {[lindex $line 2 0] eq {commit}} {
 154                                 set sha1 [lindex $line 2 1]
 155                         } else {
 156                                 continue
 157                         }
 158                 } elseif {[lindex $line 1 0] eq {commit}} {
 159                         set sha1 [lindex $line 1 1]
 160                 } else {
 161                         continue
 162                 }
 163                 set refn [lindex $line 0]
 164                 set tip_data($refn) [lrange $line 1 end]
 165                 lappend cmt_refn($sha1) $refn
 166                 lappend all_refn $refn
 167         }
 168         close $fr_fd
 169
 170         if {$unmerged_only} {
 171                 set fr_fd [git_read rev-list --all ^$::HEAD]
 172                 while {[gets $fr_fd sha1] > 0} {
 173                         if {[catch {set rlst $cmt_refn($sha1)}]} continue
 174                         foreach refn $rlst {
 175                                 set inc($refn) 1
 176                         }
 177                 }
 178                 close $fr_fd
 179         } else {
 180                 foreach refn $all_refn {
 181                         set inc($refn) 1
 182                 }
 183         }
 184
 185         set spec_head [list]
 186         foreach name [load_all_heads] {
 187                 set refn refs/heads/$name
 188                 if {[info exists inc($refn)]} {
 189                         lappend spec_head [list $name $refn]
 190                 }
 191         }
 192
 193         set spec_trck [list]
 194         foreach spec [all_tracking_branches] {
 195                 set refn [lindex $spec 0]
 196                 if {[info exists inc($refn)]} {
 197                         regsub ^refs/(heads|remotes)/ $refn {} name
 198                         lappend spec_trck [concat $name $spec]
 199                 }
 200         }
 201
 202         set spec_tag [list]
 203         foreach name [load_all_tags] {
 204                 set refn refs/tags/$name
 205                 if {[info exists inc($refn)]} {
 206                         lappend spec_tag [list $name $refn]
 207                 }
 208         }
 209
 210                   if {$is_detached}             { set revtype HEAD
 211         } elseif {[llength $spec_head] > 0} { set revtype head
 212         } elseif {[llength $spec_trck] > 0} { set revtype trck
 213         } elseif {[llength $spec_tag ] > 0} { set revtype tag
 214         } else {                              set revtype expr
 215         }
 216
 217         if {$revtype eq {head} && $current_branch ne {}} {
 218                 set i 0
 219                 foreach spec $spec_head {
 220                         if {[lindex $spec 0] eq $current_branch} {
 221                                 $w_list selection clear 0 end
 222                                 $w_list selection set $i
 223                                 break
 224                         }
 225                         incr i
 226                 }
 227         }
 228
 229         return $this
 230 }
 231
 232 method none {text} {
 233         if {![winfo exists $w.none_r]} {
 234                 radiobutton $w.none_r \
 235                         -anchor w \
 236                         -value none \
 237                         -variable @revtype
 238                 grid $w.none_r -sticky we -padx {0 5} -columnspan 2
 239         }
 240         $w.none_r configure -text $text
 241 }
 242
 243 method get {} {
 244         switch -- $revtype {
 245         head -
 246         trck -
 247         tag  {
 248                 set i [$w_list curselection]
 249                 if {$i ne {}} {
 250                         return [lindex $cur_specs $i 0]
 251                 } else {
 252                         return {}
 253                 }
 254         }
 255
 256         HEAD { return HEAD                     }
 257         expr { return $c_expr                  }
 258         none { return {}                       }
 259         default { error "unknown type of revision" }
 260         }
 261 }
 262
 263 method pick_tracking_branch {} {
 264         set revtype trck
 265 }
 266
 267 method focus_filter {} {
 268         if {[$w_filter cget -state] eq {normal}} {
 269                 focus $w_filter
 270         }
 271 }
 272
 273 method bind_listbox {event script}  {
 274         bind $w_list $event $script
 275 }
 276
 277 method get_local_branch {} {
 278         if {$revtype eq {head}} {
 279                 return [_expr $this]
 280         } else {
 281                 return {}
 282         }
 283 }
 284
 285 method get_tracking_branch {} {
 286         set i [$w_list curselection]
 287         if {$i eq {} || $revtype ne {trck}} {
 288                 return {}
 289         }
 290         return [lrange [lindex $cur_specs $i] 1 end]
 291 }
 292
 293 method get_commit {} {
 294         set e [_expr $this]
 295         if {$e eq {}} {
 296                 return {}
 297         }
 298         return [git rev-parse --verify "$e^0"]
 299 }
 300
 301 method commit_or_die {} {
 302         if {[catch {set new [get_commit $this]} err]} {
 303
 304                 # Cleanup the not-so-friendly error from rev-parse.
 305                 #
 306                 regsub {^fatal:\s*} $err {} err
 307                 if {$err eq {Needed a single revision}} {
 308                         set err {}
 309                 }
 310
 311                 set top [winfo toplevel $w]
 312                 set msg "Invalid revision: [get $this]\n\n$err"
 313                 tk_messageBox \
 314                         -icon error \
 315                         -type ok \
 316                         -title [wm title $top] \
 317                         -parent $top \
 318                         -message $msg
 319                 error $msg
 320         }
 321         return $new
 322 }
 323
 324 method _expr {} {
 325         switch -- $revtype {
 326         head -
 327         trck -
 328         tag  {
 329                 set i [$w_list curselection]
 330                 if {$i ne {}} {
 331                         return [lindex $cur_specs $i 1]
 332                 } else {
 333                         error "No revision selected."
 334                 }
 335         }
 336
 337         expr {
 338                 if {$c_expr ne {}} {
 339                         return $c_expr
 340                 } else {
 341                         error "Revision expression is empty."
 342                 }
 343         }
 344         HEAD { return HEAD                     }
 345         none { return {}                       }
 346         default { error "unknown type of revision"      }
 347         }
 348 }
 349
 350 method _validate {d S} {
 351         if {$d == 1} {
 352                 if {[regexp {\s} $S]} {
 353                         return 0
 354                 }
 355                 if {[string length $S] > 0} {
 356                         set revtype expr
 357                 }
 358         }
 359         return 1
 360 }
 361
 362 method _filter {P} {
 363         if {[regexp {\s} $P]} {
 364                 return 0
 365         }
 366         _rebuild $this $P
 367         return 1
 368 }
 369
 370 method _select {args} {
 371         _rebuild $this $filter
 372         focus_filter $this
 373 }
 374
 375 method _rebuild {pat} {
 376         set ste normal
 377         switch -- $revtype {
 378         head { set new $spec_head }
 379         trck { set new $spec_trck }
 380         tag  { set new $spec_tag  }
 381         expr -
 382         HEAD -
 383         none {
 384                 set new [list]
 385                 set ste disabled
 386         }
 387         }
 388
 389         if {[$w_list cget -state] eq {disabled}} {
 390                 $w_list configure -state normal
 391         }
 392         $w_list delete 0 end
 393
 394         if {$pat ne {}} {
 395                 set pat *${pat}*
 396         }
 397         set cur_specs [list]
 398         foreach spec $new {
 399                 set txt [lindex $spec 0]
 400                 if {$pat eq {} || [string match $pat $txt]} {
 401                         lappend cur_specs $spec
 402                         $w_list insert end $txt
 403                 }
 404         }
 405         if {$cur_specs ne {}} {
 406                 $w_list selection clear 0 end
 407                 $w_list selection set 0
 408         }
 409
 410         if {[$w_filter cget -state] ne $ste} {
 411                 $w_list   configure -state $ste
 412                 $w_filter configure -state $ste
 413         }
 414 }
 415
 416 method _delete {current} {
 417         if {$current eq $w} {
 418                 delete_this
 419         }
 420 }
 421
 422 method _sb_set {sb orient first last} {
 423         set old_focus [focus -lastfor $w]
 424
 425         if {$first == 0 && $last == 1} {
 426                 if {[winfo exists $sb]} {
 427                         destroy $sb
 428                         if {$old_focus ne {}} {
 429                                 update
 430                                 focus $old_focus
 431                         }
 432                 }
 433                 return
 434         }
 435
 436         if {![winfo exists $sb]} {
 437                 if {$orient eq {h}} {
 438                         scrollbar $sb -orient h -command [list $w_list xview]
 439                         pack $sb -fill x -side bottom -before $w_list
 440                 } else {
 441                         scrollbar $sb -orient v -command [list $w_list yview]
 442                         pack $sb -fill y -side right -before $w_list
 443                 }
 444                 if {$old_focus ne {}} {
 445                         update
 446                         focus $old_focus
 447                 }
 448         }
 449         $sb set $first $last
 450 }
 451
 452 method _show_tooltip {pos} {
 453         if {$tooltip_wm ne {}} {
 454                 _open_tooltip $this
 455         } elseif {$tooltip_timer eq {}} {
 456                 set tooltip_timer [after 1000 [cb _open_tooltip]]
 457         }
 458 }
 459
 460 method _open_tooltip {} {
 461         global remote_url
 462
 463         set tooltip_timer {}
 464         set pos_x [winfo pointerx $w_list]
 465         set pos_y [winfo pointery $w_list]
 466         if {[winfo containing $pos_x $pos_y] ne $w_list} {
 467                 _hide_tooltip $this
 468                 return
 469         }
 470
 471         set pos @[join [list \
 472                 [expr {$pos_x - [winfo rootx $w_list]}] \
 473                 [expr {$pos_y - [winfo rooty $w_list]}]] ,]
 474         set lno [$w_list index $pos]
 475         if {$lno eq {}} {
 476                 _hide_tooltip $this
 477                 return
 478         }
 479
 480         set spec [lindex $cur_specs $lno]
 481         set refn [lindex $spec 1]
 482         if {$refn eq {}} {
 483                 _hide_tooltip $this
 484                 return
 485         }
 486
 487         if {$tooltip_wm eq {}} {
 488                 set tooltip_wm [toplevel $w_list.tooltip -borderwidth 1]
 489                 wm overrideredirect $tooltip_wm 1
 490                 wm transient $tooltip_wm [winfo toplevel $w_list]
 491                 set tooltip_t $tooltip_wm.label
 492                 text $tooltip_t \
 493                         -takefocus 0 \
 494                         -highlightthickness 0 \
 495                         -relief flat \
 496                         -borderwidth 0 \
 497                         -wrap none \
 498                         -background lightyellow \
 499                         -foreground black
 500                 $tooltip_t tag conf section_header -font font_uibold
 501                 bind $tooltip_wm <Escape> [cb _hide_tooltip]
 502                 pack $tooltip_t
 503         } else {
 504                 $tooltip_t conf -state normal
 505                 $tooltip_t delete 0.0 end
 506         }
 507
 508         set data $tip_data($refn)
 509         if {[lindex $data 0 0] eq {tag}} {
 510                 set tag  [lindex $data 0]
 511                 if {[lindex $data 1 0] eq {commit}} {
 512                         set cmit [lindex $data 1]
 513                 } else {
 514                         set cmit {}
 515                 }
 516         } elseif {[lindex $data 0 0] eq {commit}} {
 517                 set tag  {}
 518                 set cmit [lindex $data 0]
 519         }
 520
 521         $tooltip_t insert end "[lindex $spec 0]\n"
 522
 523         if {$tag ne {}} {
 524                 $tooltip_t insert end "\n"
 525                 $tooltip_t insert end "tag" section_header
 526                 $tooltip_t insert end "  [lindex $tag 1]\n"
 527                 $tooltip_t insert end [lindex $tag 2]
 528                 $tooltip_t insert end " ([lindex $tag 3])\n"
 529                 $tooltip_t insert end [lindex $tag 4]
 530                 $tooltip_t insert end "\n"
 531         }
 532
 533         if {$cmit ne {}} {
 534                 $tooltip_t insert end "\n"
 535                 $tooltip_t insert end "commit" section_header
 536                 $tooltip_t insert end "  [lindex $cmit 1]\n"
 537                 $tooltip_t insert end [lindex $cmit 2]
 538                 $tooltip_t insert end " ([lindex $cmit 3])\n"
 539                 $tooltip_t insert end [lindex $cmit 4]
 540         }
 541
 542         if {[llength $spec] > 2} {
 543                 $tooltip_t insert end "\n"
 544                 $tooltip_t insert end "remote" section_header
 545                 $tooltip_t insert end "  [lindex $spec 2]\n"
 546                 $tooltip_t insert end "url"
 547                 $tooltip_t insert end " $remote_url([lindex $spec 2])\n"
 548                 $tooltip_t insert end "branch"
 549                 $tooltip_t insert end " [lindex $spec 3]"
 550         }
 551
 552         $tooltip_t conf -state disabled
 553         _position_tooltip $this
 554 }
 555
 556 method _position_tooltip {} {
 557         set max_h [lindex [split [$tooltip_t index end] .] 0]
 558         set max_w 0
 559         for {set i 1} {$i <= $max_h} {incr i} {
 560                 set c [lindex [split [$tooltip_t index "$i.0 lineend"] .] 1]
 561                 if {$c > $max_w} {set max_w $c}
 562         }
 563         $tooltip_t conf -width $max_w -height $max_h
 564
 565         set req_w [winfo reqwidth  $tooltip_t]
 566         set req_h [winfo reqheight $tooltip_t]
 567         set pos_x [expr {[winfo pointerx .] +  5}]
 568         set pos_y [expr {[winfo pointery .] + 10}]
 569
 570         set g "${req_w}x${req_h}"
 571         if {$pos_x >= 0} {append g +}
 572         append g $pos_x
 573         if {$pos_y >= 0} {append g +}
 574         append g $pos_y
 575
 576         wm geometry $tooltip_wm $g
 577         raise $tooltip_wm
 578 }
 579
 580 method _hide_tooltip {} {
 581         if {$tooltip_wm ne {}} {
 582                 destroy $tooltip_wm
 583                 set tooltip_wm {}
 584         }
 585         if {$tooltip_timer ne {}} {
 586                 after cancel $tooltip_timer
 587                 set tooltip_timer {}
 588         }
 589 }
 590
 591 }