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added data.clear(..) to data.js...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2014-10-28 13:02:56 +03:00
parent a4449b88d0
commit 2f2a6a0045
2 changed files with 117 additions and 2 deletions
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108
ui (gen4)/data.js
View File

@ -253,6 +253,114 @@ module.DataPrototype = {
return gid
},
// Clear elements from data...
//
// Clear all data:
// .clear('*')
// .clear('all')
// -> data
//
// Clear empty ribbons:
// .clear('empty')
// -> data
//
// Clear gid(s) form data:
// .clear(gid)
// .clear([gid, gid, ..])
// -> data
//
//
// Two extra argumants are considered:
// - deep - if set to true (default), when cleared a ribbon all
// images within that ribbon will also be cleared.
// - clear_empty
// - if true (default), empty ribbons will be removed
// after all gids are cleared.
// this is equivalent to calling:
// .clear('empty')
//
//
// NOTE: at this point this will not set .base and .current but this
// will reset them to null if a base ribbon or current image is
// cleared...
// thus setting appropriate .base and .current values is the
// responsibility of the caller.
//
// XXX not sure this should be here...
// XXX should this reset .base and .current to appropriate values
// other than null?
// XXX should this return this or the removed gids???
clear: function(gids, deep, clear_empty){
// defaults...
deep = deep == null ? true : false
clear_empty = clear_empty == null ? true : false
if(gids == null){
return this
}
// clear all data...
if(gids == '*' || gids == 'all'){
this._reset()
// clear empty ribbons only...
} else if(gids == 'empty'){
for(var r in this.ribbons){
if(this.ribbons[r].len() == 0){
this.clear(r)
}
}
// clear gids...
} else {
gids = gids.constructor === Array ? gids : [gids]
var that = this
gids.forEach(function(gid){
var r = that.ribbon_order.indexOf(gid)
var i = that.order.indexOf(gid)
// gid is a ribbon...
if(r >= 0){
// clear from order...
that.ribbon_order.splice(r, 1)
// clear from ribbons...
var images = that.ribbons[gid]
delete that.ribbons[gid]
// remove ribbon images...
if(deep){
images.forEach(function(gid){ that.clear(gid) })
}
if(that.base == gid){
that.base = null
}
// gid is an image...
} else if(i >= 0) {
// remove from order...
that.order.splice(i, 1)
// remove from ribbons...
Object.keys(that.ribbons).forEach(function(r){
that.ribbons[r].splice(i, 1)
})
if(that.current == gid){
that.current = null
}
}
})
// cleanup...
if(clear_empty){
this.clear('empty')
}
}
return this
},
/*********************************************** Introspection ***/

7
ui (gen4)/viewer.js
View File

@ -472,6 +472,7 @@ actions.Actions(Client, {
// is resized and recentered...
this.ribbons.preventTransitions()
// XXX should we use this.reload() here???
return function(){
// XXX do a partial load...
// XXX
@ -484,8 +485,14 @@ actions.Actions(Client, {
}],
reload: [
function(){
this.ribbons.preventTransitions()
return function(){
this.ribbons.updateData(this.data)
this.focusImage()
this.ribbons.restoreTransitions()
}
}],
clear: [
// XXX do we need to delete the ribbons???