Merge branch 'maint' of git://repo.or.cz/git-gui into maint
[git/git.git] / git-gui / lib / browser.tcl
1 # git-gui tree browser
2 # Copyright (C) 2006, 2007 Shawn Pearce
3
4 class browser {
5
6 image create photo ::browser::img_parent -data {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}
7 image create photo ::browser::img_rblob -data {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}
8 image create photo ::browser::img_xblob -data {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}
9 image create photo ::browser::img_tree -data {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}
10 image create photo ::browser::img_symlink -data {R0lGODlhEAAQAIQAAPwCBCwqLLSytLy+vERGRFRWVDQ2NKSmpAQCBKyurMTGxISChJyanHR2dIyKjGxubHRydGRmZIyOjFxeXHx6fAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAEAAAAALAAAAAAQABAAAAVbICACwWieY1CibCCsrBkMb0zchSEcNYskCtqBBzshFkOGQFk0IRqOxqPBODRHCMhCQKteRc9FI/KQWGOIyFYgkDC+gPR4snCcfRGKOIKIgSMQE31+f4OEYCZ+IQAh/mhDcmVhdGVkIGJ5IEJNUFRvR0lGIFBybyB2ZXJzaW9uIDIuNQ0KqSBEZXZlbENvciAxOTk3LDE5OTguIEFsbCByaWdodHMgcmVzZXJ2ZWQuDQpodHRwOi8vd3d3LmRldmVsY29yLmNvbQA7}
11 image create photo ::browser::img_unknown -data {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}
12
13 field w
14 field browser_commit
15 field browser_path
16 field browser_files {}
17 field browser_status {Starting...}
18 field browser_stack {}
19 field browser_busy 1
20
21 field ls_buf {}; # Buffered record output from ls-tree
22
23 constructor new {commit {path {}}} {
24 global cursor_ptr M1B
25 make_toplevel top w
26 wm title $top "[appname] ([reponame]): File Browser"
27
28 set browser_commit $commit
29 set browser_path $browser_commit:$path
30
31 label $w.path \
32 -textvariable @browser_path \
33 -anchor w \
34 -justify left \
35 -borderwidth 1 \
36 -relief sunken \
37 -font font_uibold
38 pack $w.path -anchor w -side top -fill x
39
40 frame $w.list
41 set w_list $w.list.l
42 text $w_list -background white -borderwidth 0 \
43 -cursor $cursor_ptr \
44 -state disabled \
45 -wrap none \
46 -height 20 \
47 -width 70 \
48 -xscrollcommand [list $w.list.sbx set] \
49 -yscrollcommand [list $w.list.sby set]
50 rmsel_tag $w_list
51 scrollbar $w.list.sbx -orient h -command [list $w_list xview]
52 scrollbar $w.list.sby -orient v -command [list $w_list yview]
53 pack $w.list.sbx -side bottom -fill x
54 pack $w.list.sby -side right -fill y
55 pack $w_list -side left -fill both -expand 1
56 pack $w.list -side top -fill both -expand 1
57
58 label $w.status \
59 -textvariable @browser_status \
60 -anchor w \
61 -justify left \
62 -borderwidth 1 \
63 -relief sunken
64 pack $w.status -anchor w -side bottom -fill x
65
66 bind $w_list <Button-1> "[cb _click 0 @%x,%y];break"
67 bind $w_list <Double-Button-1> "[cb _click 1 @%x,%y];break"
68 bind $w_list <$M1B-Up> "[cb _parent] ;break"
69 bind $w_list <$M1B-Left> "[cb _parent] ;break"
70 bind $w_list <Up> "[cb _move -1] ;break"
71 bind $w_list <Down> "[cb _move 1] ;break"
72 bind $w_list <$M1B-Right> "[cb _enter] ;break"
73 bind $w_list <Return> "[cb _enter] ;break"
74 bind $w_list <Prior> "[cb _page -1] ;break"
75 bind $w_list <Next> "[cb _page 1] ;break"
76 bind $w_list <Left> break
77 bind $w_list <Right> break
78
79 bind $w_list <Visibility> [list focus $w_list]
80 set w $w_list
81 if {$path ne {}} {
82 _ls $this $browser_commit:$path $path
83 } else {
84 _ls $this $browser_commit $path
85 }
86 return $this
87 }
88
89 method _move {dir} {
90 if {$browser_busy} return
91 set lno [lindex [split [$w index in_sel.first] .] 0]
92 incr lno $dir
93 if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
94 $w tag remove in_sel 0.0 end
95 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
96 $w see $lno.0
97 }
98 }
99
100 method _page {dir} {
101 if {$browser_busy} return
102 $w yview scroll $dir pages
103 set lno [expr {int(
104 [lindex [$w yview] 0]
105 * [llength $browser_files]
106 + 1)}]
107 if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
108 $w tag remove in_sel 0.0 end
109 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
110 $w see $lno.0
111 }
112 }
113
114 method _parent {} {
115 if {$browser_busy} return
116 set info [lindex $browser_files 0]
117 if {[lindex $info 0] eq {parent}} {
118 set parent [lindex $browser_stack end-1]
119 set browser_stack [lrange $browser_stack 0 end-2]
120 if {$browser_stack eq {}} {
121 regsub {:.*$} $browser_path {:} browser_path
122 } else {
123 regsub {/[^/]+$} $browser_path {} browser_path
124 }
125 set browser_status "Loading $browser_path..."
126 _ls $this [lindex $parent 0] [lindex $parent 1]
127 }
128 }
129
130 method _enter {} {
131 if {$browser_busy} return
132 set lno [lindex [split [$w index in_sel.first] .] 0]
133 set info [lindex $browser_files [expr {$lno - 1}]]
134 if {$info ne {}} {
135 switch -- [lindex $info 0] {
136 parent {
137 _parent $this
138 }
139 tree {
140 set name [lindex $info 2]
141 set escn [escape_path $name]
142 set browser_status "Loading $escn..."
143 append browser_path $escn
144 _ls $this [lindex $info 1] $name
145 }
146 blob {
147 set name [lindex $info 2]
148 set p {}
149 foreach n $browser_stack {
150 append p [lindex $n 1]
151 }
152 append p $name
153 blame::new $browser_commit $p
154 }
155 }
156 }
157 }
158
159 method _click {was_double_click pos} {
160 if {$browser_busy} return
161 set lno [lindex [split [$w index $pos] .] 0]
162 focus $w
163
164 if {[lindex $browser_files [expr {$lno - 1}]] ne {}} {
165 $w tag remove in_sel 0.0 end
166 $w tag add in_sel $lno.0 [expr {$lno + 1}].0
167 if {$was_double_click} {
168 _enter $this
169 }
170 }
171 }
172
173 method _ls {tree_id {name {}}} {
174 set ls_buf {}
175 set browser_files {}
176 set browser_busy 1
177
178 $w conf -state normal
179 $w tag remove in_sel 0.0 end
180 $w delete 0.0 end
181 if {$browser_stack ne {}} {
182 $w image create end \
183 -align center -padx 5 -pady 1 \
184 -name icon0 \
185 -image ::browser::img_parent
186 $w insert end {[Up To Parent]}
187 lappend browser_files parent
188 }
189 lappend browser_stack [list $tree_id $name]
190 $w conf -state disabled
191
192 set fd [git_read ls-tree -z $tree_id]
193 fconfigure $fd -blocking 0 -translation binary -encoding binary
194 fileevent $fd readable [cb _read $fd]
195 }
196
197 method _read {fd} {
198 append ls_buf [read $fd]
199 set pck [split $ls_buf "\0"]
200 set ls_buf [lindex $pck end]
201
202 set n [llength $browser_files]
203 $w conf -state normal
204 foreach p [lrange $pck 0 end-1] {
205 set tab [string first "\t" $p]
206 if {$tab == -1} continue
207
208 set info [split [string range $p 0 [expr {$tab - 1}]] { }]
209 set path [string range $p [expr {$tab + 1}] end]
210 set type [lindex $info 1]
211 set object [lindex $info 2]
212
213 switch -- $type {
214 blob {
215 scan [lindex $info 0] %o mode
216 if {$mode == 0120000} {
217 set image ::browser::img_symlink
218 } elseif {($mode & 0100) != 0} {
219 set image ::browser::img_xblob
220 } else {
221 set image ::browser::img_rblob
222 }
223 }
224 tree {
225 set image ::browser::img_tree
226 append path /
227 }
228 default {
229 set image ::browser::img_unknown
230 }
231 }
232
233 if {$n > 0} {$w insert end "\n"}
234 $w image create end \
235 -align center -padx 5 -pady 1 \
236 -name icon[incr n] \
237 -image $image
238 $w insert end [escape_path $path]
239 lappend browser_files [list $type $object $path]
240 }
241 $w conf -state disabled
242
243 if {[eof $fd]} {
244 close $fd
245 set browser_status Ready.
246 set browser_busy 0
247 set ls_buf {}
248 if {$n > 0} {
249 $w tag add in_sel 1.0 2.0
250 focus -force $w
251 }
252 }
253 } ifdeleted {
254 catch {close $fd}
255 }
256
257 }
258
259 class browser_open {
260
261 field w ; # widget path
262 field w_rev ; # mega-widget to pick the initial revision
263
264 constructor dialog {} {
265 make_toplevel top w
266 wm title $top "[appname] ([reponame]): Browse Branch Files"
267 if {$top ne {.}} {
268 wm geometry $top "+[winfo rootx .]+[winfo rooty .]"
269 }
270
271 label $w.header \
272 -text {Browse Branch Files} \
273 -font font_uibold
274 pack $w.header -side top -fill x
275
276 frame $w.buttons
277 button $w.buttons.browse -text Browse \
278 -default active \
279 -command [cb _open]
280 pack $w.buttons.browse -side right
281 button $w.buttons.cancel -text {Cancel} \
282 -command [list destroy $w]
283 pack $w.buttons.cancel -side right -padx 5
284 pack $w.buttons -side bottom -fill x -pady 10 -padx 10
285
286 set w_rev [::choose_rev::new $w.rev {Revision}]
287 $w_rev bind_listbox <Double-Button-1> [cb _open]
288 pack $w.rev -anchor nw -fill both -expand 1 -pady 5 -padx 5
289
290 bind $w <Visibility> [cb _visible]
291 bind $w <Key-Escape> [list destroy $w]
292 bind $w <Key-Return> [cb _open]\;break
293 tkwait window $w
294 }
295
296 method _open {} {
297 if {[catch {$w_rev commit_or_die} err]} {
298 return
299 }
300 set name [$w_rev get]
301 destroy $w
302 browser::new $name
303 }
304
305 method _visible {} {
306 grab $w
307 $w_rev focus_filter
308 }
309
310 }