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some tweaks + moved to Array.prototype.compact()...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2014-03-22 16:03:38 +04:00
parent b774788c34
commit 40aa86ff9f
1 changed files with 33 additions and 9 deletions
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42
ui/data4.js
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@ -134,23 +134,47 @@ var DataPrototype = {
/******************************************************* Utils ***/
// Compact a sparse list...
compactSparseList: function(list){
return list.filter(function(){return true})
},
// Make a sparse list of image gids...
//
// This will use this.order as the base for ordering the list.
//
// If target is given then it will get updated with the input gids.
makeSparseImages: function(gids, target){
//
// NOTE: this can be used to re-sort sections of a target ribbon,
// but care must be taken not to overwrite existing data...
// NOTE: if target is given some items in it might get pushed out
// by the new gids, especially if target is out of sync with
// .order, this can be avoided by setting keep_target_items
// (see next for more info).
// Another way to deal with this is to .makeSparseImages(target)
// before using it as a target.
// NOTE: if keep_target_items is set items that are overwritten in
// the target will get pushed to gids.
// This flag has no effect if target is an empty list (default).
makeSparseImages: function(gids, target, keep_target_items){
target = target == null ? [] : target
keep_target_items = keep_target_items == null ? false : keep_target_items
order = this.order
// avoid directly updating self...
if(gids === target){
gids = gids.slice()
}
gids.forEach(function(e){
i = order.indexOf(e)
if(i >= 0){
var o = target[i]
// save overwritten target items if keep_target_items
// is set...
if(keep_target_items
&& o != null
// if the items is already in gids, forget it...
// NOTE: this is to avoid juggling loops...
&& gids.indexOf(o) < 0){
gids.push(o)
}
target[i] = e
}
})
@ -442,7 +466,7 @@ var DataPrototype = {
for(var k in ribbons){
this.makeSparseImages(ribbons[k], res)
}
list = this.compactSparseList(res)
list = res.compact()
target = null
// filter out the unloaded gids from given list...
@ -462,7 +486,7 @@ var DataPrototype = {
// get the ribbon gids...
if(list == null){
list = this.ribbons[this.getRibbon(target)]
list = list != null ? this.compactSparseList(list) : []
list = list != null ? list.compact() : []
}
if(count == null){
@ -1044,7 +1068,7 @@ var DataPrototype = {
}
// compact ribbons...
for(var k in this.ribbons){
res.ribbons[k] = this.compactSparseList(this.ribbons[k])
res.ribbons[k] = this.ribbons[k].compact()
}
if(mode == 'string' || mode == 'str'){
res = JSON.stringify(res)