Rename Tabs

[efendioglukdz]

Is there any possibility to rename an active Tab?

[lvaroqui]

I'm not sure what you mean, but you provide the tab name through the title API.

And you can find the active tab with the find_active_focus API.

[efendioglukdz]

Imagine I am writing a texteditor with files to open. Each opened new file is open on seperate Tab. So the tab would be called unnamed.txt initially but after save as it gets another name, so the name of the tab must change too

[lvaroqui]

That's what the title API is for, you can provide any title you like for the tab with it!

[lvaroqui]

Something like this:

struct FileTab {
    title: String,
    content: String,
}

impl egui_dock::TabViewer for TabViewer {
    type Tab = FileTab;

    fn ui(&mut self, ui: &mut egui::Ui, tab: &mut Self::Tab) {
        egui::TextEdit::multiline(&mut self.content);
    }

    fn title(&mut self, tab: &mut Self::Tab) -> egui::WidgetText {
        self.title.into()
    }
}

[Adanos020]

I'd just like to add that by default TabViewer::id returns an ID derived from TabViewer::title. This means that if your tab's title changes in runtime, its ID will also change, which can lead to weird issues like your tab losing focus.

So, if you want your tab titles to change, you have to override TabViewer::id and derive the returned ID on something that doesn't change :)