Trilium/docs/Developer Guide/Developer Guide/Scripting/Widgets/Right pane widget.md

Right pane widget

• doRender must not be overridden, instead doRenderBody() has to be overridden.
• parentWidget() must be set to “rightPane”.
• widgetTitle() getter can optionally be overriden, otherwise the widget will be displayed as “Untitled widget”.

const template = `<div>Hi</div>`;

class ToDoListWidget extends api.RightPanelWidget {
    
    get widgetTitle() {
        return "Title goes here";
    }
        
    get parentWidget() { return "right-pane" }
    
    doRenderBody() {
        this.$body.empty().append($(template));
    }   
    
    async refreshWithNote(note) {
        this.toggleInt(false);                
        this.triggerCommand("reEvaluateRightPaneVisibility");
        this.toggleInt(true);
        this.triggerCommand("reEvaluateRightPaneVisibility");
    }
}

module.exports = new ToDoListWidget();

The implementation is in src/public/app/widgets/right_panel_widget.js.