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move imagery and stylesheet collection-handling code out of the Appli…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| package net.systemeD.potlatch2.collections { | ||
|
|
||
| import flash.events.EventDispatcher; | ||
| import flash.events.Event; | ||
| import flash.net.*; | ||
| import net.systemeD.halcyon.DebugURLRequest; | ||
| import net.systemeD.halcyon.Map; | ||
| import net.systemeD.potlatch2.FunctionKeyManager; | ||
| import net.systemeD.potlatch2.Yahoo; | ||
| import mx.collections.ArrayCollection; | ||
|
|
||
| /* | ||
| There's lots of further tidying we can do: | ||
| - remove all the horrid Yahoo stuff | ||
| - remove the backreferences to _map and send events instead | ||
| but this will do for now and help remove the clutter from potlatch2.mxml. | ||
| */ | ||
|
|
||
| public class Imagery extends EventDispatcher { | ||
|
|
||
| private static const GLOBAL_INSTANCE:Imagery = new Imagery(); | ||
| public static function instance():Imagery { return GLOBAL_INSTANCE; } | ||
|
|
||
| public var collection:Array=[]; | ||
| public var selected:Object={}; | ||
| private var _yahooDefault:Boolean=false; | ||
| private var _map:Map; | ||
| private var _yahoo:Yahoo; | ||
|
|
||
| /* Load catalogue file */ | ||
|
|
||
| public function init(map:Map,yahoo:Yahoo,yahooDefault:Boolean):void { | ||
| _map = map; | ||
| _yahoo = yahoo; | ||
| _yahooDefault = yahooDefault; | ||
| var request:DebugURLRequest = new DebugURLRequest("imagery.xml"); | ||
| var loader:URLLoader = new URLLoader(); | ||
| loader.addEventListener(Event.COMPLETE, onImageryLoad); | ||
| loader.load(request.request); | ||
| } | ||
|
|
||
| private function onImageryLoad(event:Event):void { | ||
| var xml:XML = new XML(URLLoader(event.target).data); | ||
| var saved:Object; | ||
| if (SharedObject.getLocal("user_state").data['background_url']) { | ||
| saved={ name: SharedObject.getLocal("user_state").data['background_name'], | ||
| url: SharedObject.getLocal("user_state").data['background_url' ] }; | ||
| } else { | ||
| saved={ url: ''}; | ||
| } | ||
|
|
||
| var isSet:Boolean=false; | ||
| var backgroundSet:Boolean = false; | ||
|
|
||
| collection=new Array( | ||
| { name: "None", url: "" }, | ||
| { name: "Yahoo", url: "yahoo", sourcetag: "Yahoo" } ); | ||
| for each(var set:XML in xml.set) { | ||
| var obj:Object={}; | ||
| var a:XML; | ||
| for each (a in set.@*) { obj[a.name().localName]=a.toString(); } | ||
| for each (a in set.* ) { obj[a.name() ]=a.toString(); } | ||
| collection.push(obj); | ||
| if ((obj.url ==saved.url) || | ||
| (obj.name==saved.name && obj.name!='Custom')) { isSet=true; } | ||
| } | ||
|
|
||
| if (!isSet && saved.name && saved.url && saved.url!='' && saved.url!='yahoo') { | ||
| collection.push(saved); | ||
| isSet=true; | ||
| } | ||
|
|
||
| for each (var bg:Object in collection) { | ||
| if (bg.name==saved.name || bg.url==saved.url) { | ||
| setBackground(bg); | ||
| backgroundSet = true; | ||
| } | ||
| } | ||
|
|
||
| // For most contributors it's useful to set the background to yahoo by default, I reckon, but lets make it a config | ||
| if (!backgroundSet && _yahooDefault) { | ||
| setBackground(collection[1]); | ||
| } | ||
| FunctionKeyManager.instance().registerListener('Background imagery', | ||
| function(o:String):void { setBackground(findBackgroundWithName(o)); }); | ||
| dispatchEvent(new Event("collection_changed")); | ||
| } | ||
|
|
||
| public function setBackground(bg:Object):void { | ||
| if (bg.url=='yahoo') { _map.setBackground({url:''}); _yahoo.show(); } | ||
| else { _map.setBackground(bg ); _yahoo.hide(); } | ||
| selected=bg; | ||
| var obj:SharedObject = SharedObject.getLocal("user_state"); | ||
| obj.setProperty('background_url' ,String(bg.url)); | ||
| obj.setProperty('background_name',String(bg.name)); | ||
| obj.flush(); | ||
| } | ||
|
|
||
| private function findBackgroundWithName(name:String):Object { | ||
| for each (var bg:Object in collection) { | ||
| if (bg.name==name) { return bg; } | ||
| } | ||
| return { url:'' }; | ||
| } | ||
|
|
||
| [Bindable(event="collection_changed")] | ||
| public function getAvailableImagery():ArrayCollection { | ||
| var available:Array=[]; | ||
| for each (var bg:Object in collection) { | ||
| if (bg.minlon) { | ||
| // if there's a bbox, check the current viewport intersects it | ||
| if (((_map.edge_l>bg.minlon && _map.edge_l<bg.maxlon) || | ||
| (_map.edge_r>bg.minlon && _map.edge_r<bg.maxlon) || | ||
| (_map.edge_l<bg.minlon && _map.edge_r>bg.maxlon)) && | ||
| ((_map.edge_b>bg.minlat && _map.edge_b<bg.maxlat) || | ||
| (_map.edge_t>bg.minlat && _map.edge_t<bg.maxlat) || | ||
| (_map.edge_b<bg.minlat && _map.edge_t>bg.maxlat))) { | ||
| available.push(bg); | ||
| } | ||
| } else { | ||
| // if there's no bbox (i.e. global set), include it anyway | ||
| available.push(bg); | ||
| } | ||
| } | ||
| return new ArrayCollection(available); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| package net.systemeD.potlatch2.collections { | ||
|
|
||
| import flash.events.EventDispatcher; | ||
| import flash.events.Event; | ||
| import flash.net.*; | ||
| import net.systemeD.halcyon.DebugURLRequest; | ||
| import net.systemeD.halcyon.Map; | ||
| import net.systemeD.potlatch2.FunctionKeyManager; | ||
| import net.systemeD.potlatch2.Yahoo; | ||
| import mx.collections.ArrayCollection; | ||
|
|
||
| public class Stylesheets extends EventDispatcher { | ||
|
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| private static const GLOBAL_INSTANCE:Stylesheets = new Stylesheets(); | ||
| public static function instance():Stylesheets { return GLOBAL_INSTANCE; } | ||
|
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| public var collection:Array=[]; | ||
| public var selected:Object={}; | ||
| private var _map:Map; | ||
|
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| /* Load catalogue file */ | ||
|
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||
| public function init(map:Map):void { | ||
| _map=map; | ||
| var request:DebugURLRequest = new DebugURLRequest("stylesheets.xml"); | ||
| var loader:URLLoader = new URLLoader(); | ||
| loader.addEventListener(Event.COMPLETE, onStylesheetsLoad); | ||
| loader.load(request.request); | ||
| } | ||
|
|
||
| private function onStylesheetsLoad(event:Event):void { | ||
| var xml:XML = new XML(URLLoader(event.target).data); | ||
| var saved_url:String = SharedObject.getLocal("user_state").data['stylesheet_url']; | ||
| var saved_name:String= SharedObject.getLocal("user_state").data['stylesheet_name']; | ||
| var isInMenu:Boolean=false, isSet:Boolean=false; | ||
|
|
||
| // first, build the menu from the stylesheet list. | ||
| // Also ensure the saved_url is in the menu (might be either saved from before, or supplied via loaderInfo) | ||
| collection=new Array(); | ||
| for each(var set:XML in xml.stylesheet) { | ||
| var obj:Object={}; | ||
| for (var a:String in set.children()) { | ||
| obj[set.child(a).name()]=set.child(a); | ||
| } | ||
| collection.push(obj); | ||
| if (obj.url==saved_url || (obj.name==saved_name && obj.name!='Custom')) { isInMenu=true; } | ||
| } | ||
| if (saved_url && !isInMenu) { collection.push({ name:saved_name, url:saved_url }); } | ||
|
|
||
| // pick a stylesheet to be set. It should be the saved one, if it is in the menu | ||
| // or alternatively the first one on the menu, | ||
| // or finally try 'potlatch.css' | ||
| for each (var ss:Object in collection) { | ||
| if (ss.name==saved_name || ss.url==saved_url) { | ||
| setStylesheet(ss.name, ss.url); | ||
| isSet = true; | ||
| break; | ||
| } | ||
| } | ||
| if (!isSet) { | ||
| if(collection.length > 0) { | ||
| var s:Object = collection[0]; | ||
| setStylesheet(s.name, s.url); | ||
| } else { | ||
| //hit and hope. FIXME should this be an error state? | ||
| collection.push({ name:'Potlatch', url:'potlatch.css'}); | ||
| setStylesheet('Potlatch','potlatch.css'); | ||
| } | ||
| } | ||
| FunctionKeyManager.instance().registerListener('Map style', | ||
| function(o:String):void { setStylesheet(o,findStylesheetURLWithName(o)); }); | ||
| dispatchEvent(new Event("collection_changed")); | ||
| } | ||
|
|
||
| public function setStylesheet(name:String,url:String):void { | ||
| _map.setStyle(url); | ||
| var obj:SharedObject = SharedObject.getLocal("user_state"); | ||
| obj.setProperty("stylesheet_url",url); | ||
| obj.setProperty("stylesheet_name",name); | ||
| obj.flush(); | ||
| } | ||
|
|
||
| private function findStylesheetURLWithName(name:String):String { | ||
| for each (var ss:Object in collection) { | ||
| if (ss.name==name) { return ss.url; } | ||
| } | ||
| return ''; | ||
| } | ||
|
|
||
| [Bindable(event="collection_changed")] | ||
| public function getCollection():ArrayCollection { | ||
| return new ArrayCollection(collection); | ||
| } | ||
|
|
||
| } | ||
| } |
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