| 1 | /** |
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| 2 | * Abstract model class of the players MCV pattern, extended by all models. |
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| 3 | * |
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| 4 | * @author Jeroen Wijering |
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| 5 | * @version 1.4 |
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| 6 | **/ |
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| 7 | |
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| 8 | |
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| 9 | import com.jeroenwijering.players.*; |
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| 10 | |
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| 11 | |
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| 12 | class com.jeroenwijering.players.AbstractModel { |
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| 13 | |
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| 14 | |
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| 15 | /** a list of all registered views **/ |
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| 16 | private var registeredViews:Array; |
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| 17 | /** a reference to the controller **/ |
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| 18 | private var controller:AbstractController; |
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| 19 | /** reference to the config array **/ |
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| 20 | private var config:Object; |
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| 21 | /** reference to the feed array **/ |
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| 22 | private var feeder:Object; |
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| 23 | /** item that's currently playing **/ |
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| 24 | private var currentItem:Number; |
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| 25 | /** url of the item that's currently used by this model **/ |
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| 26 | private var currentURL:String; |
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| 27 | /** array with extensions used by a model **/ |
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| 28 | private var mediatypes:Array; |
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| 29 | /** boolean to check if a model is currently active **/ |
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| 30 | private var isActive:Boolean; |
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| 31 | /** current playhead position **/ |
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| 32 | private var currentPosition:Number; |
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| 33 | |
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| 34 | |
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| 35 | /** Constructor. **/ |
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| 36 | function AbstractModel(vws:Array,ctr:AbstractController, |
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| 37 | cfg:Object,fed:Object) { |
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| 38 | registeredViews = vws; |
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| 39 | controller = ctr; |
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| 40 | config = cfg; |
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| 41 | feeder = fed; |
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| 42 | }; |
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| 43 | |
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| 44 | |
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| 45 | /** Receive changes from the PlayerController. **/ |
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| 46 | public function getChange(typ:String,prm:Number):Void { |
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| 47 | trace("model: "+typ+": "+prm); |
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| 48 | switch(typ) { |
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| 49 | case "item": |
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| 50 | setItem(prm); |
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| 51 | break; |
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| 52 | case "start": |
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| 53 | if(isActive == true) { setStart(prm); } |
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| 54 | break; |
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| 55 | case "pause": |
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| 56 | if(isActive == true) { setPause(prm); } |
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| 57 | break; |
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| 58 | case "stop": |
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| 59 | if(isActive == true) { setStop(); } |
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| 60 | break; |
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| 61 | case "volume": |
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| 62 | setVolume(prm); |
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| 63 | break; |
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| 64 | default: |
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| 65 | trace("Model: incompatible change received"); |
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| 66 | break; |
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| 67 | } |
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| 68 | }; |
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| 69 | |
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| 70 | |
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| 71 | /** Set new item and check if the model should be the active one. **/ |
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| 72 | private function setItem(idx:Number) { |
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| 73 | currentItem = idx; |
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| 74 | var fnd:Boolean = false; |
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| 75 | for (var i=0; i<mediatypes.length; i++) { |
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| 76 | if(feeder.feed[idx]["type"] == mediatypes[i]) { |
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| 77 | fnd = true; |
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| 78 | } |
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| 79 | } |
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| 80 | if(feeder.feed[idx]["start"] > 0) { |
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| 81 | currentPosition = feeder.feed[idx]["start"]; |
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| 82 | } |
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| 83 | if(fnd == true) { |
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| 84 | isActive = true; |
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| 85 | sendUpdate("item",idx); |
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| 86 | } else { |
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| 87 | isActive = false; |
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| 88 | } |
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| 89 | }; |
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| 90 | |
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| 91 | |
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| 92 | /** Start function. **/ |
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| 93 | private function setStart(prm:Number) {}; |
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| 94 | |
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| 95 | |
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| 96 | /** Pause function. **/ |
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| 97 | private function setPause(prm:Number) {}; |
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| 98 | |
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| 99 | |
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| 100 | /** Stop function. **/ |
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| 101 | private function setStop() {}; |
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| 102 | |
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| 103 | |
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| 104 | /** Set volume and pass through if active. **/ |
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| 105 | private function setVolume(vol:Number) { |
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| 106 | if(isActive == true) { sendUpdate("volume",vol); } |
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| 107 | }; |
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| 108 | |
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| 109 | |
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| 110 | /** Send updates to the views. **/ |
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| 111 | private function sendUpdate(typ:String,prm:Number,pr2:Number) { |
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| 112 | for(var i=0; i<registeredViews.length; i++) { |
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| 113 | registeredViews[i].getUpdate(typ,prm,pr2); |
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| 114 | } |
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| 115 | if(typ == 'size') { |
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| 116 | controller.getEvent(typ,prm,pr2); |
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| 117 | } |
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| 118 | }; |
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| 119 | |
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| 120 | |
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| 121 | /** Send a "complete" event directly to the controller. **/ |
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| 122 | private function sendCompleteEvent() { |
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| 123 | controller.getEvent("complete"); |
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| 124 | }; |
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| 125 | |
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| 126 | |
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| 127 | } |
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