Add drag & drop support for effects between different sheets

Also refactor some effect related functionality into the DS4ActiveEffect class

src/module/active-effect.ts

@@ -4,6 +4,7 @@
 
 import { DS4Actor } from "./actor/actor";
 import { getGame } from "./helpers";
+import { DS4Item } from "./item/item";
 
 declare global {
     interface DocumentClassConfig {
@@ -12,6 +13,7 @@ declare global {
 }
 
 type PromisedType<T> = T extends Promise<infer U> ? U : T;
+
 export class DS4ActiveEffect extends ActiveEffect {
     /**
      * A fallback icon that can be used if no icon is defined for the effect.
@@ -23,6 +25,38 @@ export class DS4ActiveEffect extends ActiveEffect {
      */
     protected source: PromisedType<ReturnType<typeof fromUuid>> | undefined = undefined;
 
+    /**
+     * Whether or not this effect is currently surpressed.
+     */
+    get isSurpressed(): boolean {
+        const originatingItem = this.originatingItem;
+        if (!originatingItem) {
+            return false;
+        }
+        return originatingItem.isNonEquippedEuipable();
+    }
+
+    /**
+     * The item which this effect originates from if it has been transferred from an item to an actor.
+     */
+    get originatingItem(): DS4Item | undefined {
+        if (!(this.parent instanceof DS4Actor)) {
+            return;
+        }
+        const [, , , itemId] = this.data.origin?.split(".") ?? [];
+        if (!itemId) {
+            return;
+        }
+        return this.parent.items.get(itemId);
+    }
+
+    /**
+     * The number of times this effect should be applied.
+     */
+    get factor(): number {
+        return this.originatingItem?.activeEffectFactor ?? 1;
+    }
+
     /** @override */
     apply(actor: DS4Actor, change: foundry.data.ActiveEffectData["changes"][number]): unknown {
         change.value = Roll.replaceFormulaData(change.value, actor.data);
@@ -54,4 +88,21 @@ export class DS4ActiveEffect extends ActiveEffect {
         }
         return this.source;
     }
+
+    /**
+     * Create a new {@link DS4ActiveEffect} using default data.
+     *
+     * @param context The context for the creation of the effect, requiring a parent {@link DS4Actor} or {@link DS4Item}.
+     * @returns A promise that resolved to the created effect or udifined of the creation was prevented.
+     */
+    static async createDefault(
+        context: DocumentModificationContext & { parent: DS4Actor | DS4Item },
+    ): Promise<DS4ActiveEffect | undefined> {
+        const createData = {
+            label: getGame().i18n.localize(`DS4.NewEffectLabel`),
+            icon: this.FALLBACK_ICON,
+        };
+
+        return this.create(createData, context);
+    }
 }

src/module/actor/actor.ts

@@ -6,7 +6,6 @@
 import { ModifiableDataBaseTotal } from "../common/common-data";
 import { DS4 } from "../config";
 import { getGame } from "../helpers";
-import { DS4Item } from "../item/item";
 import { DS4ArmorDataProperties, DS4ShieldDataProperties } from "../item/item-data-properties";
 import { ItemType } from "../item/item-data-source";
 import { createCheckRoll } from "../rolls/check-factory";
@@ -85,20 +84,16 @@ export class DS4Actor extends Actor {
     applyActiveEffectsFiltered(predicate: (change: foundry.data.ActiveEffectData["changes"][number]) => boolean): void {
         const overrides: Record<string, unknown> = {};
 
-        // Organize non-disabled effects by their application priority
+        // Organize non-disabled and -surpressed effects by their application priority
         const changes: (foundry.data.ActiveEffectData["changes"][number] & { effect: ActiveEffect })[] =
             this.effects.reduce(
                 (changes: (foundry.data.ActiveEffectData["changes"][number] & { effect: ActiveEffect })[], e) => {
-                    if (e.data.disabled) return changes;
-                    const item = this.getOriginatingItemOfActiveEffect(e);
-                    if (item?.isNonEquippedEuipable()) return changes;
-
-                    const factor = item?.activeEffectFactor ?? 1;
+                    if (e.data.disabled || e.isSurpressed) return changes;
 
                     const newChanges = e.data.changes.filter(predicate).flatMap((c) => {
                         const changeSource = c.toObject();
                         changeSource.priority = changeSource.priority ?? changeSource.mode * 10;
-                        return Array(factor).fill({ ...changeSource, effect: e });
+                        return Array(e.factor).fill({ ...changeSource, effect: e });
                     });
 
                     return changes.concat(newChanges);
@@ -117,10 +112,6 @@ export class DS4Actor extends Actor {
         this.overrides = foundry.utils.expandObject({ ...foundry.utils.flattenObject(this.overrides), ...overrides });
     }
 
-    protected getOriginatingItemOfActiveEffect(effect: ActiveEffect): DS4Item | undefined {
-        return this.items.find((item) => item.uuid === effect.data.origin);
-    }
-
     /**
      * Apply transformations to the Actor data after effects have been applied to the base data.
      * @override
@@ -184,8 +175,6 @@ export class DS4Actor extends Actor {
                 ];
             case "creature":
                 return ["weapon", "armor", "shield", "equipment", "loot", "spell", "specialCreatureAbility"];
-            default:
-                return [];
         }
     }
 

src/module/actor/sheets/actor-sheet.ts

@@ -27,6 +27,7 @@ export class DS4ActorSheet extends ActorSheet<ActorSheet.Options, DS4ActorSheetD
             tabs: [{ navSelector: ".sheet-tabs", contentSelector: ".sheet-body", initial: "values" }],
             dragDrop: [
                 { dragSelector: ".item-list .item", dropSelector: null },
+                { dragSelector: ".effect-list .effect", dropSelector: null },
                 { dragSelector: ".ds4-check", dropSelector: null },
             ],
             width: 650,
@@ -202,12 +203,7 @@ export class DS4ActorSheet extends ActorSheet<ActorSheet.Options, DS4ActorSheetD
      * @param event - The originating click event
      */
     protected onCreateEffect(): void {
-        const effectData = {
-            label: getGame().i18n.localize(`DS4.NewEffectLabel`),
-            icon: "icons/svg/aura.svg",
-            origin: this.actor.uuid,
-        };
-        ActiveEffect.create(effectData, { parent: this.actor });
+        DS4ActiveEffect.createDefault({ parent: this.actor });
     }
 
     /**

src/module/item/item-sheet.ts

@@ -4,6 +4,7 @@
 //
 // SPDX-License-Identifier: MIT
 
+import { DS4ActiveEffect } from "../active-effect";
 import { DS4 } from "../config";
 import { getGame } from "../helpers";
 import notifications from "../ui/notifications";
@@ -97,14 +98,8 @@ export class DS4ItemSheet extends ItemSheet<ItemSheet.Options, DS4ItemSheetData>
     /**
      * Create a new ActiveEffect for the item using default data.
      */
-    protected async createActiveEffect(): Promise<ActiveEffect | undefined> {
-        const createData = {
-            label: getGame().i18n.localize(`DS4.NewEffectLabel`),
-            icon: "icons/svg/aura.svg",
-            origin: this.item.uuid,
-        };
-
-        return ActiveEffect.create(createData, { parent: this.item });
+    protected createActiveEffect(): void {
+        DS4ActiveEffect.createDefault({ parent: this.item });
     }
 }
 

src/templates/sheets/actor/tabs/effects.hbs

@@ -7,7 +7,7 @@ SPDX-License-Identifier: MIT
 
 <div class="tab effects" data-group="primary" data-tab="effects">
     {{#unless (isEmpty data.effects)}}
-    <ol class="ds4-embedded-document-list ds4-embedded-document-list--effect">
+    <ol class="ds4-embedded-document-list ds4-embedded-document-list--effect effect-list">
         {{> systems/ds4/templates/sheets/actor/components/effect-list-header.hbs}}
         {{#each enrichedEffects as |effectData id| }}
         {{> systems/ds4/templates/sheets/actor/components/effect-list-entry.hbs effectData=effectData}}