Add API to create new widgets

runelite-api/src/main/java/net/runelite/api/ScriptID.java

@@ -52,4 +52,12 @@ public final class ScriptID
 	 * </ul>
 	 */
 	public static final int RUNELITE_CHATBOX_INPUT_INIT = 10001;
+
+	/**
+	 * Does nothing
+	 *
+	 * This is used to eat events when you want a menu action attached to it
+	 * because you need an op listener attached to it for it to work
+	 */
+	public static final int NULL = 10003;
 }

runelite-api/src/main/java/net/runelite/api/WidgetType.java

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2018 Abex
+ * 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;
+
+public final class WidgetType
+{
+	public static final int GRAPHIC = 5;
+}

runelite-api/src/main/java/net/runelite/api/widgets/Widget.java

@@ -267,6 +267,11 @@ public interface Widget
 	 */
 	void setHidden(boolean hidden);
 
+	/**
+	 * The index of this widget in it's parent's children array
+	 */
+	int getIndex();
+
 	/**
 	 * Gets the location the widget is being drawn on the canvas.
 	 * <p>
@@ -354,14 +359,46 @@ public interface Widget
 	 */
 	boolean contains(Point point);
 
+	/**
+	 * Gets the amount of pixels the widget is scrolled in the X axis
+	 */
 	int getScrollX();
 
+	/**
+	 * Sets the amount of pixels the widget is scrolled in the X axis
+	 */
 	void setScrollX(int scrollX);
 
+	/**
+	 * Gets the amount of pixels the widget is scrolled in the Y axis
+	 */
 	int getScrollY();
 
+	/**
+	 * sets the amount of pixels the widget is scrolled in the Y axis
+	 */
 	void setScrollY(int scrollY);
 
+	/**
+	 * Gets the size of the widget's viewport in the X axis
+	 */
+	int getScrollWidth();
+
+	/**
+	 * Sets the size of the widget's viewport in the X axis
+	 */
+	void setScrollWidth(int width);
+
+	/**
+	 * Gets the size of the widget's viewport in the Y axis
+	 */
+	int getScrollHeight();
+
+	/**
+	 * Sets the size of the widget's viewport in the Y axis
+	 */
+	void setScrollHeight(int height);
+
 	/**
 	 * Gets the original x-axis coordinate.
 	 *
@@ -452,4 +489,53 @@ public interface Widget
 	 * @return the actions
 	 */
 	String[] getActions();
+
+	/**
+	 * Creates a dynamic widget child
+	 *
+	 * @param index the index of the new widget in the children list or -1 to append to the back
+	 * @param type  the type of the widget
+	 */
+	Widget createChild(int index, int type);
+
+	/**
+	 * Creates a menu action on the widget
+	 *
+	 * @param index The index of the menu
+	 * @param action The string to be displayed next to the widget's name in the context menu
+	 */
+	void setAction(int index, String action);
+
+	/**
+	 * Sets a script to be ran when the a menu action is clicked.
+	 * hasListener must be true for this to take effect
+	 *
+	 * @param args A ScriptID, then the args for the script
+	 */
+	void setOnOpListener(Object ...args);
+
+	/**
+	 * If this widget has any listeners on it
+	 */
+	boolean hasListener();
+
+	/**
+	 * Sets if the widget has any listeners. This should be called whenever a setXListener function is called
+	 */
+	void setHasListener(boolean hasListener);
+
+	/**
+	 * This is true if the widget is from an if3 interface, or is dynamically created
+	 */
+	boolean isIf3();
+
+	/**
+	 * Recomputes this widget's x/y/w/h, excluding scroll
+	 */
+	void revalidate();
+
+	/**
+	 * Recomputes this widget's group's x/y/w/h including scroll
+	 */
+	void revalidateScroll();
 }