--- /dev/null
+! Copyright (C) 2014 John Benediktsson
+! See http://factorcode.org/license.txt for BSD license
+
+USING: accessors debugger fry gopher gopher.private kernel
+models present ui ui.commands ui.gadgets ui.gadgets.borders
+ui.gadgets.buttons ui.gadgets.editors ui.gadgets.panes
+ui.gadgets.scrollers ui.gadgets.status-bar ui.gadgets.tracks
+ui.gestures ui.operations ui.tools.browser
+ui.tools.browser.history ui.tools.common urls ;
+
+IN: gopher-ui
+
+TUPLE: gopher-gadget < tool history output url-field ;
+
+{ 600 600 } gopher-gadget set-tool-dim
+
+M: gopher-gadget history-value
+ control-value ;
+
+M: gopher-gadget set-history-value
+ set-control-value ;
+
+M: gopher-gadget model-changed
+ [ value>> present ]
+ [ url-field>> editor>> set-editor-string ] bi* ;
+
+: show-gopher ( url gopher-gadget -- )
+ [ [ >url ] [ f ] if* ] dip
+ [
+ 2dup control-value =
+ [ 2drop ] [ nip history>> add-history ] if
+ ]
+ [ set-control-value ]
+ 2bi ;
+
+: <url-field> ( gopher-gadget -- field )
+ '[ >url _ show-gopher ] <action-field> ;
+
+: <gopher-pane> ( gopher-gadget -- gadget )
+ model>> [ '[ _ [ gopher. ] when* ] try ] <pane-control> ;
+
+: <gopher-toolbar> ( browser -- toolbar )
+ horizontal <track>
+ 0 >>fill
+ 1/2 >>align
+ { 5 5 } >>gap
+ over <toolbar> f track-add
+ swap url-field>> 1 track-add ;
+
+: <gopher-gadget> ( -- gadget )
+ vertical gopher-gadget new-track
+ f <model> >>model
+ dup <history> >>history
+ dup <url-field> >>url-field
+ dup <gopher-toolbar> { 3 3 } <border> { 1 0 } >>fill f track-add
+ dup <gopher-pane> { 3 3 } <border> { 1 1 } >>fill
+ <scroller> 1 track-add ;
+
+: open-gopher-window ( url -- )
+ <gopher-gadget>
+ [ "Gopher" open-status-window ]
+ [ show-gopher ] bi ;
+
+: com-clear ( gopher -- )
+ f swap set-control-value ;
+
+: com-gopher ( url -- )
+ [ gopher-gadget? ] find-window
+ [ [ raise-window ] [ gadget-child show-gopher ] bi ]
+ [ open-gopher-window ] if* ;
+
+gopher-gadget "toolbar" f {
+ { f com-back }
+ { f com-forward }
+ { f com-clear }
+} define-command-map
+
+gopher-gadget "scrolling" f {
+ { T{ key-down f f "UP" } com-scroll-up }
+ { T{ key-down f f "DOWN" } com-scroll-down }
+ { T{ key-down f f "PAGE_UP" } com-page-up }
+ { T{ key-down f f "PAGE_DOWN" } com-page-down }
+} define-command-map
+
+[ gopher-link? ] \ com-gopher H{ { +primary+ t } } define-operation