'display_next' doesn't work when a whole conversation is (marked as) deleted

[the0ne]

'display_next' doesn't work when a whole conversation is (marked as) deleted.

[alecpl]

Confirmed.

[alecpl]

The behavior is controlled by this code:

    this.check_display_next = function () {
        return this.env.display_next && (this.preview_id || !this.env.contentframe);
    };

This means that it will attempt to display the next message in two cases:

• when a message is currently being displayed
• when there's no content preview frame

So, it does not look like a bug.

The message won't be displayed also in case if you select a single message with Ctrl key and then delete it. So, we'll have to consider whether we want to open the next message no matter if any message is currently previewed. Which means we remove these extra conditions (the right side of &&).

For example Thunderbird does display next in any case, but it also always have some content in the preview frame.

[the0ne]

I agree that in the code it might not be a bug.

It still 'feels' like a bug from user perspective as it's really confusing that - depending on the conditions - displaying the next message sometimes works and sometimes not.