boilerplate

module/sheets/item-sheet.mjs

@@ -0,0 +1,63 @@
+/**
+ * Extend the basic ItemSheet with some very simple modifications
+ * @extends {ItemSheet}
+ */
+export class TotemItemSheet extends ItemSheet {
+
+  /** @override */
+  static get defaultOptions() {
+    return mergeObject(super.defaultOptions, {
+      classes: ["totem", "sheet", "item"],
+      width: 520,
+      height: 480,
+      tabs: [{ navSelector: ".sheet-tabs", contentSelector: ".sheet-body", initial: "description" }]
+    });
+  }
+
+  /** @override */
+  get template() {
+    const path = "systems/totem/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.type}-sheet.html`;
+  }
+
+  /* -------------------------------------------- */
+
+  /** @override */
+  getData() {
+    // Retrieve base data structure.
+    const context = super.getData();
+
+    // Use a safe clone of the item data for further operations.
+    const itemData = context.item;
+
+    // Retrieve the roll data for TinyMCE editors.
+    context.rollData = {};
+    let actor = this.object?.parent ?? null;
+    if (actor) {
+      context.rollData = actor.getRollData();
+    }
+
+    // Add the actor's data to context.data for easier access, as well as flags.
+    context.system = itemData.system;
+    context.flags = itemData.flags;
+
+    return context;
+  }
+
+  /* -------------------------------------------- */
+
+  /** @override */
+  activateListeners(html) {
+    super.activateListeners(html);
+
+    // Everything below here is only needed if the sheet is editable
+    if (!this.isEditable) return;
+
+    // Roll handlers, click handlers, etc. would go here.
+  }
+}