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refatoring and simplification...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2019-02-01 06:08:48 +03:00
parent 08d5d4bad9
commit a6eebf4aae
1 changed files with 34 additions and 29 deletions
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63
ui (gen4)/lib/widget/browse2.js
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@ -84,6 +84,7 @@ Items.group = function(...items){
return this return this
} }
// XXX add support for lists of items (a-la .group(..))
Items.nest = function(item, list, options){ Items.nest = function(item, list, options){
options = options || {} options = options || {}
options.sublist = list options.sublist = list
@ -280,10 +281,6 @@ var BaseBrowserPrototype = {
sublist, sublist,
]) ])
: sublist }, : sublist },
// Render nested list header...
// XXX should this be a renderer or an option to .renderItem(..)???
renderNestedHeader: function(item, i, options){
return this.renderItem(...arguments) },
// Render list item... // Render list item...
// NOTE: to skip rendering an item/list return null... // NOTE: to skip rendering an item/list return null...
renderItem: function(item, i, options){ renderItem: function(item, i, options){
@ -353,19 +350,18 @@ var BaseBrowserPrototype = {
// XXX should we always render the nested list here, // XXX should we always render the nested list here,
// only rendering it empty if collapsed??? // only rendering it empty if collapsed???
: item.sublist ? : item.sublist ?
(item.collapsed ? that.renderNested(
// collapsed item... that.renderItem(item, i, options),
that.renderNestedHeader(item, i, options) // collapsed...
// expanded item (grouped)... (item.collapsed ?
: that.renderNested( null
that.renderNestedHeader(item, i, options), // renderable...
item.sublist.render instanceof Function ? :item.sublist.render instanceof Function ?
// renderable... item.sublist.render(context)
item.sublist.render(context) // list of items...
// list of items... : item.sublist.map(_render)),
: item.sublist.map(_render), item,
item, options)
options))
// basic item... // basic item...
: that.renderItem(item, i, options)) }) : that.renderItem(item, i, options)) })
.filter(function(e){ .filter(function(e){
@ -535,18 +531,27 @@ var TextBrowserPrototype = {
: value }, : value },
renderNested: function(header, sublist, item, options){ renderNested: function(header, sublist, item, options){
var that = this var that = this
var nested = sublist var nested = sublist
.flat() && sublist
.map(function(e){ .flat()
return e instanceof Array ? .map(function(e){
e.map(function(e){ return (that.options.renderIndent || ' ') + e }) return e instanceof Array ?
: e }) e.map(function(e){
.flat() return (that.options.renderIndent || ' ') + e })
return header ? : e })
[header, nested] .flat()
: nested }, return (
renderNestedHeader: function(item, i, options){ // expanded...
return this.renderItem(...arguments) + (item.collapsed ? ' >' : ' v') }, header && nested ?
[
header + ' v',
nested,
]
// collapsed...
: header ?
[ header + ' >' ]
// headerless...
: nested )},
} }
var TextBrowser = var TextBrowser =