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updated attr/action pre-caching...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2018-01-19 01:21:56 +03:00
parent a6d31b4042
commit 8b2a135b9d
1 changed files with 23 additions and 6 deletions
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29
ui (gen4)/features/core.js
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@ -19,6 +19,7 @@
* base life-cycle events (start/stop/..)
* - serialization
* base methods to handle loading, serialization and cloning...
* - cache
* - util
* - journal
* action journaling and undo/redo functionality
@ -560,6 +561,8 @@ module.Serialization = ImageGridFeatures.Feature({
// XXX should this be in actions.js???
// XXX should we invalidate the cache automatically???
// XXX the cache can also be saved to localStorage and loaded until either
// the version changes or the feature list...
var CacheActions = actions.Actions({
config: {
// Enable/disable caching...
@ -573,6 +576,12 @@ var CacheActions = actions.Actions({
// number - delay pre-caching by number milliseconds
// false - pre-caching disabled
'pre-cache': 0,
// Cache chunk length in ms...
//
// Caching is done in a series of chunks set by this separated by
// timeouts set by .config['pre-cache'] to let other stuff run...
'pre-cache-chunk': 8,
},
// XXX should these be actions???
@ -584,6 +593,7 @@ var CacheActions = actions.Actions({
var l = cache[title] = cache[title] || lister.call(this)
return l
},
// XXX revise naming...
// XXX is this too broad??
preCache: function(){
if(this.config.cache){
@ -592,7 +602,8 @@ var CacheActions = actions.Actions({
},
_preCache: function(t){
if(this.config.cache){
var t = t || this.config['pre-cache']
var t = t || this.config['pre-cache'] || 0
var c = this.config['pre-cache-chunk'] || 8
var done = 0
var attrs = []
for(var k in this){
@ -601,15 +612,21 @@ var CacheActions = actions.Actions({
var l = attrs.length
var tick = function(){
// XXX is this the right way to go???
this.showProgress
&& this.showProgress('Caching', done++, l)
var a = Date.now()
var b = a
if(attrs.length == 0){
return
}
this[attrs.pop()]
while(b - a < c){
this[attrs.pop()]
b = Date.now()
// XXX is this the right way to go???
this.showProgress
&& this.showProgress('Caching', done++, l)
}
setTimeout(tick, t)
}.bind(this)