runelite-api: add event for dragging widget

runelite-api/src/main/java/net/runelite/api/events/DraggingWidgetChanged.java

@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2018, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.api.events;
+
+import lombok.Data;
+
+@Data
+public class DraggingWidgetChanged
+{
+	private boolean draggingWidget;
+}

runelite-mixins/src/main/java/net/runelite/mixins/RSClientMixin.java

@@ -55,6 +55,7 @@ import net.runelite.api.SpritePixels;
 import net.runelite.api.Varbits;
 import net.runelite.api.WidgetNode;
 import net.runelite.api.coords.LocalPoint;
+import net.runelite.api.events.DraggingWidgetChanged;
 import net.runelite.api.events.ExperienceChanged;
 import net.runelite.api.events.GameStateChanged;
 import net.runelite.api.events.GrandExchangeOfferChanged;
@@ -464,6 +465,15 @@ public abstract class RSClientMixin implements RSClient
 		return clanMemberManager != null && clanMemberManager.isMember(createName(name, getLoginType()));
 	}
 
+	@FieldHook("draggingWidget")
+	@Inject
+	public static void draggingWidgetChanged(int idx)
+	{
+		DraggingWidgetChanged draggingWidgetChanged = new DraggingWidgetChanged();
+		draggingWidgetChanged.setDraggingWidget(client.isDraggingWidget());
+		eventBus.post(draggingWidgetChanged);
+	}
+
 	@Inject
 	@Override
 	public SpritePixels createItemSprite(int itemId, int quantity, int border, int shadowColor, int stackable, boolean noted, int scale)