Only make new line when shift+enter is pressed

I want to press only [ENTER] and NOT make a new line.

Therefore, I could use "Multi Line Submit" and achieve that.

However, I can no longer make a new line.

Is it possible to press [SHIFT+ENTER] to make a new line?

 

Well, I'm not sure I got the precise order of events here, but something like this might help you:
(There is a slight visible "selection" of text made.)

Code (csharp):

1.  
2. InputField inputfield;
3.  
4.     private void Awake()
5.     {
6.         inputfield = GetComponent<InputField>();
7.        
8.     }
9.  
10.     IEnumerator FieldFix()
11.     {
12.         print("Shift + Enter newline.");
13.         inputfield.ActivateInputField();
14.  
15.         yield return null;
16.  
17.         inputfield.text += "\n";
18.         inputfield.MoveTextEnd(false);
19.     }
20.     void Update () {
21.  
22.         if (EventSystem.current.currentSelectedGameObject == inputfield.gameObject)
23.         {
24.             if(Input.GetKey(KeyCode.LeftShift) && Input.GetKeyUp(KeyCode.Return))
25.             {
26.                 StartCoroutine(FieldFix());
27.             }
28.         }
29.    }

I'd suggest using TMP's option to not select all on focus (I am fairly sure that's an option*).

 

Figured out a solution.

I'll write about it here since someone else may be wondering this in the future.... hi future. May appear long but I explained probably more than needed.

I used playmaker and TextMeshPro - though you can just use the same logic to make a pure code and/or regular inputbox version if needed.


Create this c# script called InsertText

Code (CSharp):

1. using System;
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5. using HutongGames.PlayMaker;
6. using Tooltip = HutongGames.PlayMaker.TooltipAttribute;
7. using TMPro;
8.  
9. [ActionCategory("String")]
10. [Tooltip("Adds a string into a string based on integer")]
11.  
12.  
13. public class InsertText : FsmStateAction {
14.  
15.  
16.  
17.     public FsmString stringToChange;
18.     public FsmString stringToAdd;
19.     public FsmString newString = "";
20.     public FsmInt position;
21.  
22.  
23.     public override void OnEnter()
24.     {
25.         DoCommand();
26.     }
27.  
28.     void DoCommand()
29.     {
30.    
31.    
32.         newString.Value = stringToChange.Value.Insert(position.Value,stringToAdd.Value);
33.    
34.         Finish();
35.      
36.     }
37.  
38. }

1. Make your Input Field "Multi Line Submit"
   • Do not listen for submit or this may not work properly.
2. Download the playmaker ecosystem.
   • Download on that page is a link called "EcosystemBrowser Package"
3. Use the ecosystem to obtain "Get New Line Character"
   • You can optionally get this too , TextmeshPro Playmaker Actions by this guy
4. Action 1 (Start):
   1. Store the Newline Character
5. Action 2:
   1. Listen for Shift Key (Store bool)
   2. Listen for Enter Key (I used Rewired + Their included Playmaker Actions).
6. Action 3:
   1. Check if Shift Key bool is true or false.
      • [True] You can link to Action 4 below.
      • [False] You can link to your own actions. (This will be if only Enter and not Shift is pressed, AKA "submit")
7. Action 3:
   1. Get Inputfield Text
      • This can be done in many ways. However, I used the Get Textmesh Pro UGUI Text mentioned optionally above.
   2. Get Property -> [ TextMeshPro - InputFIeld ] caretPosition
   3. Insert Text (Action)
      • This is the action created from the script above.
      • String To Change = String obtained from 6.1
      • String To Add = Newline Variable from 1
      • New String = A new variable you create
      • Position = Int obtained from 6.2
   4. Int Add (Action)
      • Add to your created caretPostion variable
      • Make this 2.
        • If it's 1 it will usually just return the caret to the beginning of the input box.
   5. Set Property -> [ TextMeshPro - InputFIeld ] text->String
      • Set Value = "New String" in String in 6.3
8. Action 4:
   1. Wait (Action)
      • Set this to 0.05
      • FINISHED
      • Note: This action is completely necessary because otherwise the caret will not follow the newline and will stay in place regardless of text or line edits.
9. Action 5:
   1. Set Property -> [ TextMeshPro - InputFIeld ] caretPostion
      • Set Value = Int from 6.2 (that was modified in 6.4)
   2. Call Method -> [ TextMeshPro - InputFIeld ] ActivateInputField()
      • This is needed because pressing enter normally will unfocus the inputfield requiring you to re-select every single time.
10. Loop back to the state where you originally pressed enter.

You can now press Shift + Enter in TextMesh Pro to make a new line while Enter will do what you make it do.

Note: You probably have to disable "OnFocus - Select All" on the inputfield object too.

 

Thanks, It worked perfectly

 

I accomplished this by doing the following in my onSubmit method:

Code (CSharp):

1. if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift))
2. {
3.     InputField.text += '\n';
4.     InputField.ActivateInputField();
5.     InputField.caretPosition = InputField.text.Length;
6.     return;
7. }
8.  
9. // Do the thing you'd normally do on submit
10.  

This is obviously non-ideal as it's not a generic solution that can work for any and all inputfields.

Edit: and by the way I think this should be the default, built-in behavior of Multi-Line Submit inputfields. It's kind of silly that we have to code this ourselves

 

I was running into an issue where TMP would insert the invalid XML vertical tab character ( 0x0b ) after the OnSubmit event. Additionally I don't see any examples of inserting the newline character at caret positions so I've also included that below. Oh as an added bonus the active selection is replaced with the newline.

Code (CSharp):

1. private static readonly string tmpSubmitLineChar = string.Format( "{0}", ( char ) 0x0b );
2.  
3. public void OnMessageChanged( string value )
4. {
5.     inputMessage.SetTextWithoutNotify( inputMessage.text.Replace( tmpSubmitLineChar, string.Empty ) );
6.     buttonSubmit.interactable = !string.IsNullOrWhiteSpace( inputMessage.text );
7. }
8.  
9. public void MessageSubmit( string value )
10. {
11.     if( inputMessage.isFocused && ( Input.GetKey( KeyCode.LeftShift ) || Input.GetKey( KeyCode.RightShift ) ) )
12.     {
13.         int caret = inputMessage.selectionFocusPosition;
14.         int delete = inputMessage.selectionAnchorPosition - caret;
15.         string text = inputMessage.text;
16.  
17.         if( delete > 0 )
18.             text = text.Remove( caret, delete );
19.         text = text.Insert( caret, "\n" );
20.         inputMessage.SetTextWithoutNotify( text );
21.  
22.         inputMessage.ActivateInputField();
23.         inputMessage.selectionFocusPosition = caret;
24.         inputMessage.selectionAnchorPosition = caret;
25.         return;
26.     }
27.  
28.     MessageSubmit();
29. }

The TMP Input Field component is configured with a line type of 'Multi Line Submit' and supports line limits.

 

Another Simple Solution:

Code (CSharp):

1. private void Update()
2.         {
3.             if (TargetInput.isFocused)
4.             {
5.                 if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift))
6.                 {
7.                     TargetInput.lineType = InputField.LineType.MultiLineNewline;
8.                 }
9.                 else
10.                 {
11.                     TargetInput.lineType = InputField.LineType.MultiLineSubmit;
12.                 }
13.             }
14.         }