Store want/have in URL/local storage

src/scripts/models/item_page.coffee

@@ -5,11 +5,12 @@ Copyright (c) 2014-2015 by Redwood Labs
 All rights reserved.
 ###
 
-BaseModel     = require './base_model'
-CraftingPlan  = require './crafting_plan'
-CraftingTable = require './crafting_table'
-{Event}       = require '../constants'
-ModPack       = require './mod_pack'
+BaseModel       = require './base_model'
+CraftingPlan    = require './crafting_plan'
+CraftingTable   = require './crafting_table'
+{Event}         = require '../constants'
+InventoryParser = require './inventory_parser'
+ModPack         = require './mod_pack'
 
 ########################################################################################################################
 
@@ -22,22 +23,27 @@ module.exports = class ItemPage extends BaseModel
         attributes.table   ?= new CraftingTable plan:attributes.plan
         super attributes, options
 
+        @_parser = new InventoryParser
+
         @modPack.on Event.change, => @_consumeParams()
         @on Event.change + ':params', => @_consumeParams()
 
     # Private Methods ##############################################################################
 
     _consumeParams: ->
+        logger.debug "consuming params: #{util.inspect(@params)}"
         return unless @params?
 
         @plan.want.clear()
-        if not @params?.name?
+        if not @params.inventoryText?
             @params = null
         else
-            item = @modPack.findItemByName @params.name, enableAsNeeded:true
-            return unless item? and item.isCraftable
+            inventory = @_parser.parse @params.inventoryText
 
-            quantity = if @params.quantity? then parseInt(@params.quantity) else 1
-            @plan.want.add item.slug, quantity
+            inventory.each (stack)=>
+                item = @modPack.findItemByName stack.slug, enableAsNeeded:true
+                return unless item? and item.isCraftable
+                @plan.want.add stack.slug, stack.quantity
+                inventory.remove stack.slug
 
-            @params = null
+            if inventory.isEmpty then @params = null