UIInput + Mac web player build issue

[rav3n256]

I've been building a web player build using ngui 2.5.1 and everything is working properly.  When I tried on a mac book running mountain lion, I'm still able to input text, but the backspace doesn't work at all.  I'm running the build on safari with a web player build that was built using unity 4.1.2f1.  Has anyone else had this issue?  Also, any suggestion to fix this.  If more information is needed, I'm happy to provide it.

Cheers

[ArenMook]

It's a bug in Unity.

[rav3n256]

Well, that sucks.  Is there any way to get around this for now till unity decides to fix this?

[ArenMook]

None I am aware of.

[marasto]

Hi,

do you know if that issue will be fixed soon or not ?
in the meanwhile could I suggest as a workaround to map a combination like ctrl+b or cmd+b to mimic the backspace behavior ? (potentially customizable in UICamera) ?

[ArenMook]

The more bugs you submit on the issue, the faster it will get fixed... that's all I know.

Building with an earlier version of Unity, such as 3.5.7 also doesn't exhibit this issue.

[marasto]

Hi,

I had post on another thread a potential workaround. If Arenmock would like to give that a try it could be great. However I honestly prefer that  Unity guys fix that issue

[marasto]

Hot fix workaround (tested on OSX, if someone would like to check on windows is more than welcome).
All the fixes are in UICamera.cs
Hope that help

ciao!!

1. private string lastInputEvents = System.String.Empty;
2.  
3. void OnGUI ()
4.         {
5. #if UNITY_EDITOR
6.                 if (debug && lastHit.collider != null)
7.                 {
8.                         GUILayout.Label("Last Hit: " + NGUITools.GetHierarchy(lastHit.collider.gameObject).Replace("\"", ""));
9.                 }
10. #endif
11. #if UNITY_WEBPLAYER
12.                 if(inputHasFocus && (Input.imeCompositionMode != IMECompositionMode.Off)) {
13.                         //get last reported input                      
14.                         if(Event.current.isKey ) {
15.                                 if(Event.current.keyCode == KeyCode.Backspace) {
16.                                         //CHECK IF BACKSPACE IS ALREADY IN THE INPUT STRING
17.                                         if(Input.inputString.LastIndexOf('\b') == -1) {
18.                                                 //backspace or delete not reported so add the backspace char for the next update
19.                                                 lastInputEvents += '\b';                                               
20.                                         }
21.                                 }
22.                         }
23.                 }
24. #endif
25.         }
26.  

Update() method

1. ...
2. ...
3. ...
4.  
5. // Forward the input to the selected object
6.                 if (mSel != null)
7.                 {
8.                         string input = Input.inputString;
9.                         //Merge the input string. Backspace always come first and the other characters
10.                         //if the backspace is found in the current string no \b will be added so in practicve lastInputEvents will be always empty
11.                         //if no backspace is found and a backspace has been reported, this will be added to lastInputEvents
12.                         //next update the string will be notified and changed
13.                         lastInputEvents += input;
14.  
15.                         // Adding support for some macs only having the "Delete" key instead of "Backspace"
16.                         if (useKeyboard && Input.GetKeyDown(KeyCode.Delete) && lastInputEvents.LastIndexOf('\b') == -1) lastInputEvents += '\b';
17.                        
18.                         if(lastInputEvents.Length > 0)
19.                         {
20.                                 if (!stickyTooltip && mTooltip != null) ShowTooltip(false);
21.                                 Notify(mSel, "OnInput", lastInputEvents);
22.                                 //Nullify all the inputs
23.                                 lastInputEvents = System.String.Empty;
24.                         }
25.                 }
26.                 else {
27.                         inputHasFocus = false;                 
28.                 }
29.  

selectObject property

1. ...
2. ...
3. ...
4. mSel = value;
5. //reset the last reported keys events
6. current.lastInputEvents = System.String.Empty;
7.  
8. ...
9. ...
10. ...
11.  

[erick_zeppelin]

Thanks marasto, that works 

I reported this bug to Unity, waiting to fix it.

[rterranova]

In the last section of code under "selectObject property" do those lines of code in the Update function also?  At the bottom of Update?

[rterranova]

NM, I figured it out!

[rterranova]

Ok, maybe I spoke to soon.  Im getting multiple delete message when hitting the delete key.  This causing the mulitple characters to be deleted at one time. 

I put these lines

mSel = value;
//reset the last reported keys events
current.lastInputEvents = System.String.Empty;

in the selectObject set function.  But I get a null object error on the current.lastInputEvents line.

This happens on the Unity Editor

Any help would be great!

[Dougomite]

Looks like the formatting got a bit messed up. That 'current' is part of the above comment.

1. mSel = value;
2. //reset the last reported keys events current.
3. lastInputEvents = System.String.Empty;

That looks to be correct.

[pmerlaud]

Hi all,

I had the same issue and got something working using the hotfix posted by marasto.

First, instead of declaring

1. private string lastInputEvents = System.String.Empty;

I had to declare it as

1. private static string lastInputEvents = System.String.Empty;

(otherwise I had an error "An object reference is required to access non-static member `UICamera.lastInputEvents`")

I was also getting multiple deletes using the Unity Editor, so I put the #if UNITY_WEBPLAYER ... #endif section of code (in the OnGUI function) in an if condition to check if the runtime platform is the OSX Web Player. OnGUI() now looks like :

1. void OnGUI ()
2.     {
3. #if UNITY_EDITOR
4.         if (debug && lastHit.collider != null)
5.         {
6.             GUILayout.Label("Last Hit: " + NGUITools.GetHierarchy(lastHit.collider.gameObject).Replace("\"", ""));
7.         }
8. #endif
9.                
10. #if UNITY_WEBPLAYER
11.                 if(Application.platform == RuntimePlatform.OSXWebPlayer)
12.                 {
13.                 if(inputHasFocus && (Input.imeCompositionMode != IMECompositionMode.Off)) {
14.                     //get last reported input                  
15.                     if(Event.current.isKey ) {
16.                         if(Event.current.keyCode == KeyCode.Backspace) {
17.                             //CHECK IF BACKSPACE IS ALREADY IN THE INPUT STRING
18.                             if(Input.inputString.LastIndexOf('\b') == -1) {
19.                                 //backspace or delete not reported so add the backspace char for the next update
20.                                 lastInputEvents += '\b';                                               
21.                             }
22.                         }
23.                     }
24.                 }
25.        
26.             }
27. #endif
28.         }

It's working like a charm now !

[ArenMook]

Just a quick note, Jonas fixed this properly on the Unity's side, so you will see it fixed in a later version of Unity.