Detect Editing is Started in TextBlock

GoJS
1

Hello,

I want to set maxSize of textblock to something like

textBlock.maxSize = new go.Size(150,NaN); when user starts editing in textblock.

And on diagram.TextEdited event, I want to change maxSize property to

textBlock.maxSize = new go.Size(NaN, NaN).

When I am overriding textEditingTool.doStart method and setting initial config textBlock.maxSize = new go.Size(150,NaN); than it is showing me warnings like

Change not within a transaction: !d maxSize: Process old: Size(Infinity,Infinity) new: Size(150,Infinity)

Is there any other event, Where we can detect that editing inside textblock is started and we can change its property at run time?

2

During editing (i.e. during the operation of the TextEditingTool), the size of the edited TextBlock really doesn’t matter. It’s used for the initial sizing of the <textarea>, but once editing has started, the size of the <textarea> is independent of the TextBlock.

So I think you want to customize the text editor (not the TextBlock) not to have a particular width. That is set in the HTMLInfo.show function used by the default editor used by TextEditingTool. I suggest that you read GoJS HTML Interaction -- Northwoods Software and use a slightly modified version of the standard editor, which is given at https://gojs.net/latest/extensions/TextEditor.js and demo’ed at HTMLInfo Text Editor.