daggerheart/module/applications/sheets/items/weapon.mjs

import DaggerheartSheet from '../daggerheart-sheet.mjs';

const { ItemSheetV2 } = foundry.applications.sheets;
export default class WeaponSheet extends DaggerheartSheet(ItemSheetV2) {
    static DEFAULT_OPTIONS = {
        tag: 'form',
        classes: ['daggerheart', 'sheet', 'item', 'dh-style', 'weapon'],
        position: { width: 600 },
        form: {
            handler: this.updateForm,
            submitOnChange: true,
            closeOnSubmit: false
        }
    };

    static PARTS = {
        header: { template: 'systems/daggerheart/templates/sheets/items/weapon/header.hbs' },
        tabs: { template: 'systems/daggerheart/templates/sheets/global/tabs/tab-navigation.hbs' },
        description: { template: 'systems/daggerheart/templates/sheets/global/tabs/tab-description.hbs' },
        settings: {
            template: 'systems/daggerheart/templates/sheets/items/weapon/settings.hbs',
            scrollable: ['.settings']
        }
    };

    static TABS = {
        description: {
            active: true,
            cssClass: '',
            group: 'primary',
            id: 'description',
            icon: null,
            label: 'DAGGERHEART.Sheets.Feature.Tabs.Description'
        },
        settings: {
            active: false,
            cssClass: '',
            group: 'primary',
            id: 'settings',
            icon: null,
            label: 'DAGGERHEART.Sheets.Feature.Tabs.Settings'
        }
    };

    async _prepareContext(_options) {
        const context = await super._prepareContext(_options);
        context.document = this.document;
        context.config = CONFIG.daggerheart;
        context.tabs = super._getTabs(this.constructor.TABS);

        return context;
    }

    static async updateForm(event, _, formData) {
        await this.document.update(formData.object);
        this.render();
    }
}