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some refactoring...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2013-11-25 05:20:27 +04:00
parent 05a7e6bf56
commit 8385ba422a
1 changed files with 56 additions and 55 deletions
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111
ui/data.js
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@ -517,58 +517,6 @@ function getGIDBefore(gid, ribbon, search, data){
}
// Get "count" of GIDs starting with a given gid ("from")
//
// NOTE: this will not include the 'from' GID in the resulting list,
// unless inclusive is set to true.
// NOTE: count can be either negative or positive, this will indicate
// load direction...
// NOTE: this can calculate the ribbon number where the image is located.
// NOTE: if an image can be in more than one ribbon, one MUST suply the
// correct ribbon number...
//
// XXX do we need more checking???
// XXX Race condition: when this is called while DATA is not yet fully
// loaded (old data), the from gid will not be present in
// DATA.ribbons...
function getImageGIDs(from, count, ribbon, inclusive){
if(count == 0){
return []
}
// ribbon default value...
// XXX Race condition: if DATA is not yet loaded this can return
// ribbon == null...
if(ribbon == null){
$(DATA.ribbons).each(function(i, e){
if(e.indexOf(from) >= 0){
ribbon = i
return false
}
})
}
ribbon = DATA.ribbons[ribbon]
// ribbon this is empty or non-existant...
// XXX need to check when can we get a ribbon == undefined case...
// ...race?
//if(ribbon == null){
// // XXX
//}
if(ribbon == null || ribbon.length == 0){
return []
}
if(count > 0){
var c = inclusive == null ? 1 : 0
var start = ribbon.indexOf(from) + c
return ribbon.slice(start, start + count)
} else {
var c = inclusive == null ? 0 : 1
var end = ribbon.indexOf(from)
return ribbon.slice((Math.abs(count) >= end ? 0 : end + count + c), end + c)
}
}
// Base URL interface...
//
// NOTE: changing a base URL will trigger a baseURLChanged event...
@ -1298,6 +1246,59 @@ function updateImages(size){
}
*/
// Get "count" of GIDs starting with a given gid ("from")
//
// NOTE: this will not include the 'from' GID in the resulting list,
// unless inclusive is set to true.
// NOTE: count can be either negative or positive, this will indicate
// load direction...
// NOTE: this can calculate the ribbon number where the image is located.
// NOTE: if an image can be in more than one ribbon, one MUST suply the
// correct ribbon number...
//
// XXX do we need more checking???
// XXX Race condition: when this is called while DATA is not yet fully
// loaded (old data), the from gid will not be present in
// DATA.ribbons...
function getGIDsAfter(from, count, ribbon, inclusive){
if(count == 0){
return []
}
// ribbon default value...
// XXX Race condition: if DATA is not yet loaded this can return
// ribbon == null...
if(ribbon == null){
$(DATA.ribbons).each(function(i, e){
if(e.indexOf(from) >= 0){
ribbon = i
return false
}
})
}
ribbon = DATA.ribbons[ribbon]
// ribbon this is empty or non-existant...
// XXX need to check when can we get a ribbon == undefined case...
// ...race?
//if(ribbon == null){
// // XXX
//}
if(ribbon == null || ribbon.length == 0){
return []
}
if(count > 0){
var c = inclusive == null ? 1 : 0
var start = ribbon.indexOf(from) + c
return ribbon.slice(start, start + count)
} else {
var c = inclusive == null ? 0 : 1
var end = ribbon.indexOf(from)
return ribbon.slice((Math.abs(count) >= end ? 0 : end + count + c), end + c)
}
}
// Get a sub-ribbon of count elements around a given gid
//
// +- ribbon count
@ -1489,7 +1490,7 @@ function rollImages(n, ribbon, extend, no_compensate_shift){
var from = n > 0 ? getImageGID(ribbon.find('.image').last())
: getImageGID(ribbon.find('.image').first())
var gids = getImageGIDs(from, n, r)
var gids = getGIDsAfter(from, n, r)
if(gids.length == 0){
return $([])
}
@ -1587,8 +1588,8 @@ function preCacheRibbonImages(ribbon){
var first = getImageGID(images.first())
var last = getImageGID(images.last())
var gids = getImageGIDs(first, -cache_frame_size)
.concat(getImageGIDs(last, cache_frame_size))
var gids = getGIDsAfter(first, -cache_frame_size)
.concat(getGIDsAfter(last, cache_frame_size))
var cache = []
IMAGE_CACHE[i] = cache