Open only one dialog from ribbon

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I have a ribbon with Login button, which opens the login dialog. I want to limit number of dialogs to one. I'm using function: displayDialogAsync(startAddress, options, callback)

All I found is:

An Office Add-in task pane can have only one dialog box open at any time. Multiple dialogs can be open at the same time from Add-in Commands (custom ribbon buttons or menu items).

But I want to use ribbon button. So is there a way to do it? (maybe global variable or smth)

office-addins office-js ms-office javascript
1 Answers

You are going to need a global indicator, but each dialog is a completely separate instance of the JavaScript runtime, so a global variable won't work. You need to use LocalStorage. Try creating a LocalStorage key with a name like isDialogOpen. Your code checks its value before it opens the dialog. If it is false, your code opens the dialog and sets it to true.

user_61900310
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