Mouse lock in Flash export?

Flash Player 11.2 introduced the long-awaited mouse lock feature. How can we make use of that feature in Unity Flash games?

 

Custom ActionScript code.

 

Here is an example of a script that will (in fullscreen mode) lock the cursor and enable mouse look.

Code (csharp):

1.  
2. using UnityEngine;
3. using System.Collections;
4. using UnityEngine.Flash;
5.  
6. public class MouseLock : MonoBehaviour
7. {
8.     public MonoBehaviour MouseLook;
9.  
10.     // Use this for initialization
11.     void Start () {
12.  
13.         //Add a fullscreen button to your GUI using Flash display object (I just use a sprite here).
14.         ActionScript.Import("flash.display.Sprite");
15.        
16.         ActionScript.Import("com.unity.UnityNative");
17.         ActionScript.Import("flash.display.Stage");
18.         ActionScript.Import("flash.events.MouseEvent");
19.        
20.         ActionScript.Statement("var spr:Sprite = new Sprite()");
21.         ActionScript.Statement("UnityNative.stage.addChild(spr)");
22.  
23.         ActionScript.Statement("spr.graphics.beginFill(0xFF0000)");
24.         ActionScript.Statement("spr.graphics.drawRect(0,0,200,40)");
25.         ActionScript.Statement("spr.graphics.endFill()");
26.  
27.         ActionScript.Statement("spr.addEventListener(MouseEvent.CLICK, HandleFullScreenButtonClicked)");
28.     }
29.  
30.     [NotRenamed]
31.     public void HandleFullScreenButtonClicked(object @flashEvent)
32.     {
33.         ActionScript.Import("com.unity.UnityNative");
34.         ActionScript.Import("flash.display.Stage");
35.         ActionScript.Import("flash.display.StageDisplayState");
36.  
37.         var fullScreen = ActionScript.Expression<bool>("UnityNative.stage.displayState == StageDisplayState.FULL_SCREEN");
38.         if (fullScreen)
39.         {
40.             ActionScript.Statement("UnityNative.stage.mouseLock = false");
41.  
42.             ActionScript.Statement("UnityNative.stage.displayState = StageDisplayState.NORMAL");
43.  
44.             MouseLook.enabled = false;
45.         }
46.         else
47.         {
48.             ActionScript.Statement("UnityNative.stage.displayState = StageDisplayState.FULL_SCREEN");
49.  
50.             ActionScript.Statement("UnityNative.stage.mouseLock = true");
51.  
52.             MouseLook.enabled = true;
53.         }
54.     }
55.  
56.     // Update is called once per frame
57.     void Update () {
58.    
59.     }
60. }
61.  

Just attach the script to a game object and link up an instance of MouseLook.