Market now can update package to newer version

src/core/BaseModel.coffee

@@ -32,10 +32,10 @@ class BaseModel
     render: (p) ->
         _GUI.loadScheme p, @, @host
 
-    quit: () ->
+    quit: (force) ->
         evt = new _GUI.BaseEvent("exit")
-        @onexit(evt)
-        if not evt.prevent
+        @onexit(evt) if not force
+        if force or not evt.prevent
             delete @.observable
             @dialog.quit() if @dialog
             _PM.kill @

src/core/api.coffee

@@ -42,6 +42,46 @@ class FormatedString
         args = arguments
         @values[i] = args[i] for i in [0..args.length - 1]
 
+class Version
+    constructor:(@string) ->
+        arr = @string.split "-"
+        br =
+            "r": 3,
+            "b": 2,
+            "a": 1
+        @branch = 3
+        @branch = br[arr[1]] if arr.length is 2 and br[arr[1]]
+        mt = arr[0].match /\d+/g
+        throw new Error __("Version string is in invalid format: {0}", @string) if not mt
+        @major = 0
+        @minor = 0
+        @patch = 0
+        @major = Number mt[0] if mt.length >= 1
+        @minor = Number mt[1]  if mt.length >= 2
+        @patch = Number mt[2] if mt.length >= 3
+    
+    # this function return 
+    #   0 if the version is unchanged
+    #   1 if the current version is newer
+    #   -1 if the current version is older
+    compare: (o) ->
+        other = o.__v()
+        return 1 if @branch > other.branch
+        return -1 if @branch < other.branch
+        return 0 if @major is other.major and @minor is other.minor and @patch is other.patch
+        return 1 if @major > other.major
+        return -1 if @major < other.major
+        return 1 if @minor > other.minor
+        return -1 if @minor < other.minor
+        return 1 if @patch > other.patch
+        return -1
+    nt: (o) ->
+        return (@compare o) is 1
+    ot: (o) ->
+        return (@compare o) is -1
+    __v: () -> @
+    toString: () -> @string
+
 Object.defineProperty Object.prototype, '__',
     value: () ->
         return @toString()
@@ -53,7 +93,8 @@ String.prototype.hash = () ->
     i = this.length
     hash = (hash * 33) ^ this.charCodeAt(--i) while i
     hash >>> 0
-
+String.prototype.__v = () ->
+    return new Version @
 String.prototype.asBase64 = () ->
     tmp = encodeURIComponent this
     return btoa ( tmp.replace /%([0-9A-F]{2})/g, (match, p1) ->

src/core/core.coffee

@@ -103,11 +103,11 @@ self.OS or=
                 delete _PM.processes[app.name][i]
                 _PM.processes[app.name].splice i, 1
         
-        killAll: (app) ->
+        killAll: (app, force) ->
             return unless _PM.processes[app]
             tmp = []
             tmp.push a for a in _PM.processes[app]
-            a.quit() for a in tmp
+            a.quit(force) for a in tmp
 
     cleanup: ->
         console.log "Clean up system"

src/core/gui.coffee

@@ -133,11 +133,14 @@ self.OS.GUI =
 
     forceLaunch: (app, args) ->
         console.log "This method is used for developing only, please use the launch method instead"
-        _PM.killAll app
-        ($ _OS.APP[app].style).remove() if _OS.APP[app] and _OS.APP[app].style
-        _OS.APP[app] = undefined
+        _GUI.unloadApp app
         _GUI.launch app, args
 
+    unloadApp: (app) ->
+        _PM.killAll app, true
+        ($ _OS.APP[app].style).remove() if _OS.APP[app] and _OS.APP[app].style
+        _OS.APP[app] = undefined
+    
     loadApp: (app, ok, err) ->
         path = "os://packages/#{app}"
         path = _OS.setting.system.packages[app].path if _OS.setting.system.packages[app].path