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https://github.com/flynx/ImageGrid.git
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added .reveal(..) + tweaking and refactoring...
Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
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566f833ae6
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@ -279,7 +279,7 @@ var BaseBrowserPrototype = {
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//
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// NOTE: this can't be a map/dict as we need both order manipulation
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// and nested structures which would overcomplicate things, as
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// a compromise we use .item_index below for item identification.
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// a compromise we use .item_key_index below for item identification.
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__items: null,
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get items(){
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this.__items
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@ -305,15 +305,15 @@ var BaseBrowserPrototype = {
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// XXX can we make the format here simpler with less level
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// of indirection??
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// ...currently to go down a path we need to:
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// this.item_index.A.sublist.item_index.B.sublist...
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// this.item_key_index.A.sublist.item_key_index.B.sublist...
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// would be nice to be closer to:
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// this.A.B...
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__item_index: null,
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get item_index(){
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get item_key_index(){
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this.__item_index
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|| this.make()
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return this.__item_index },
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set item_index(value){
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set item_key_index(value){
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this.__item_index = value },
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@ -398,7 +398,7 @@ var BaseBrowserPrototype = {
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//
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// The resulting item is stored in:
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// .items
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// .item_index (keyed via .id or JSONified .value)
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// .item_key_index (keyed via .id or JSONified .value)
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//
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// Each of the above structures is reset on each call to .make(..)
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//
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@ -479,7 +479,7 @@ var BaseBrowserPrototype = {
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// Make .items and .item_index...
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// Make .items and .item_key_index...
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//
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// .make()
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// .make(options)
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@ -491,7 +491,7 @@ var BaseBrowserPrototype = {
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// For more doc on item construction see: .__init__(..)
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//
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//
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// NOTE: each call to this will reset both .items and .item_index
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// NOTE: each call to this will reset both .items and .item_key_index
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// NOTE: for items with repeating values there is no way to correctly
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// identify an item thus no state is maintained between .make(..)
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// calls for such items...
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@ -742,13 +742,6 @@ var BaseBrowserPrototype = {
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// XXX item API...
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//
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// .get()
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// .get(id)
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// .get(index)
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// .get(path)
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// -> item
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// -> undefined
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//
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// XXX add path support...
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// XXX add literal item support (???)
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// XXX do not get .subtree elements of a .collapsed item...
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@ -822,12 +815,12 @@ var BaseBrowserPrototype = {
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var k = this.__value2key__(key)
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// direct match...
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if(k in this.item_index){
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return this.item_index[k]
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if(k in this.item_key_index){
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return this.item_key_index[k]
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}
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// query nested...
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var nested = Object.values(this.item_index)
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var nested = Object.values(this.item_key_index)
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.filter(function(e){
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return e.sublist instanceof Browser })
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while(nested.length > 0){
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@ -842,6 +835,17 @@ var BaseBrowserPrototype = {
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return undefined
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},
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// Get item...
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//
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// .get()
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// .get(id)
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// .get(index)
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// .get(path)
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// -> item
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// -> undefined
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//
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// options format: the same as for .map(..).
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//
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// XXX this is not too fast for indexing very long lists...
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get: function(key, options){
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key = key == null ? 0 : key
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@ -853,29 +857,34 @@ var BaseBrowserPrototype = {
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[key]
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: key
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options = options || {}
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var iterateCollapsed = options.iterateAll || options.iterateCollapsed
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// get path...
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if(key instanceof Array){
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var res = this.item_index[key.shift()]
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var res = this.item_key_index[key.shift()]
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return key.length == 0 ?
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res
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// nested...
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: options.iterateCollapsed || !res.collapsed ?
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: iterateCollapsed || !res.collapsed ?
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res.sublist.get(key, options)
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: undefined }
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// search...
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// get index...
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// XXX getting an element by index is o(n) and not o(1)...
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// ...unless we cache .sublists() not sure if this can be
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// made better in the general case...
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var i = 0
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var res
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var Stop = new Error()
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var Stop = new Error('.get(..): Result found exception.')
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try {
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this.map(function(e){
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res = key == i ?
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e
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: res
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if(res){
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throw Stop
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}
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throw Stop }
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i++
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}, options)
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} catch(e){
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if(e === Stop){
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@ -886,6 +895,27 @@ var BaseBrowserPrototype = {
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return res
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},
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// Like .get(.., {iterateCollapsed: true}) but will expand all the
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// path items to reveal the target...
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reveal: function(key, options){
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// get the item...
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var res = this.get(key, Object.assign({iterateCollapsed: true}, options))
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// expand the path up...
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var cur = res.parent
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while(cur && cur.parent instanceof Browser){
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delete (cur.parent.item_key_index[cur.id]
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|| cur.parent.items
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.filter(function(e){
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return e.sublist === cur })
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.shift()).collapsed
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cur = cur.parent }
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// re-render...
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this.render()
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return res
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},
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// Extended map...
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