foundryvtt-frostgrave/module/item/item-sheet.js

/**
 * Extend the basic ItemSheet with some very simple modifications
 * @extends {ItemSheet}
 */
export class frostgraveItemSheet extends ItemSheet {
  /** @override */
  static get defaultOptions() {
    return mergeObject(super.defaultOptions, {
      classes: ["foundryvtt-frostgrave", "sheet", "item"],
      width: 450,
      height: 500,
      tabs: [{
        navSelector: ".sheet-tabs",
        contentSelector: ".sheet-body",
        initial: "attributes",
      }, ],
    });
  }

  /** @override */
  get template() {
    const path = "systems/foundryvtt-frostgrave/templates/item";
    // Return a single sheet for all item types.
    // return `${path}/item-sheet.html`;

    // Alternatively, you could use the following return statement to do a
    // unique item sheet by type, like `weapon-sheet.html`.
    return `${path}/item-${this.item.data.type}-sheet.html`;
  }

  /* -------------------------------------------- */

  /** @override */
  getData() {
    const data = super.getData();
    
    let formData = duplicate(data.data)
    console.log("ITEM", formData);

    return formData;
  }

  /* -------------------------------------------- */

  /** @override */
  setPosition(options = {}) {
    const position = super.setPosition(options);
    const sheetBody = this.element.find(".sheet-body");
    const bodyHeight = position.height - 192;
    sheetBody.css("height", bodyHeight);
    return position;
  }

  /* -------------------------------------------- */

  /** @override */
  activateListeners(html) {
    super.activateListeners(html);

    // Everything below here is only needed if the sheet is editable
    if (!this.options.editable) return;

    // Roll handlers, click handlers, etc. would go here.
  }
}