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diff --git a/dom/webidl/PopupBoxObject.webidl b/dom/webidl/PopupBoxObject.webidl
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+[Func="IsChromeOrXBL"]
+interface PopupBoxObject : BoxObject
+{
+  /**
+   *  This method is deprecated. Use openPopup or openPopupAtScreen instead.
+   */
+  void showPopup(Element? srcContent, Element popupContent,
+                 long xpos, long ypos,
+                 optional DOMString popupType = "",
+                 optional DOMString anchorAlignment = "",
+                 optional DOMString popupAlignment = "");
+
+  /**
+   *  Hide the popup if it is open. The cancel argument is used as a hint that
+   *  the popup is being closed because it has been cancelled, rather than
+   *  something being selected within the panel.
+   *
+   * @param cancel if true, then the popup is being cancelled.
+   */
+  void hidePopup(optional boolean cancel = false);
+
+  /**
+   * Allow the popup to automatically position itself.
+   */
+  attribute boolean autoPosition;
+
+  /**
+   * If keyboard navigation is enabled, the keyboard may be used to navigate
+   * the menuitems on the popup. Enabling keyboard navigation is the default
+   * behaviour and will install capturing key event listeners on the popup
+   * that do not propagate key events to the contents. If you wish to place
+   * elements in a popup which accept key events, such as textboxes, keyboard
+   * navigation should be disabled.
+   *
+   * Setting ignorekeys="true" on the popup element also disables keyboard
+   * navigation, and is recommended over calling this method.
+   */
+  void enableKeyboardNavigator(boolean enableKeyboardNavigator);
+
+  /**
+   * Enable automatic popup dismissal. This only has effect when called
+   * on an open popup.
+   */
+  void enableRollup(boolean enableRollup);
+
+  /**
+   * Control whether the event that caused the popup to be automatically
+   * dismissed ("rolled up") should be consumed, or dispatched as a
+   * normal event.  This should be set immediately before calling showPopup()
+   * if non-default behavior is desired.
+   */
+  const unsigned long ROLLUP_DEFAULT = 0;   /* widget/platform default */
+  const unsigned long ROLLUP_CONSUME = 1;   /* consume the rollup event */
+  const unsigned long ROLLUP_NO_CONSUME = 2; /* don't consume the rollup event */
+  void setConsumeRollupEvent(unsigned long consume);
+
+  /**
+   * Size the popup to the given dimensions
+   */
+  void sizeTo(long width, long height);
+
+  /**
+   * Move the popup to a point on screen in CSS pixels.
+   */
+  void moveTo(long left, long top);
+
+  /**
+   * Open the popup relative to a specified node at a specific location.
+   *
+   * The popup may be either anchored to another node or opened freely.
+   * To anchor a popup to a node, supply an anchor node and set the position
+   * to a string indicating the manner in which the popup should be anchored.
+   * Possible values for position are:
+   *    before_start, before_end, after_start, after_end,
+   *    start_before, start_after, end_before, end_after,
+   *    overlap, after_pointer
+   *
+   * The anchor node does not need to be in the same document as the popup.
+   *
+   * If the attributesOverride argument is true, the popupanchor, popupalign
+   * and position attributes on the popup node override the position value
+   * argument. If attributesOverride is false, the attributes are only used
+   * if position is empty.
+   *
+   * For an anchored popup, the x and y arguments may be used to offset the
+   * popup from its anchored position by some distance, measured in CSS pixels.
+   * x increases to the right and y increases down. Negative values may also
+   * be used to move to the left and upwards respectively.
+   *
+   * Unanchored popups may be created by supplying null as the anchor node.
+   * An unanchored popup appears at the position specified by x and y,
+   * relative to the viewport of the document containing the popup node. In
+   * this case, position and attributesOverride are ignored.
+   *
+   * @param anchorElement the node to anchor the popup to, may be null
+   * @param position manner is which to anchor the popup to node
+   * @param x horizontal offset
+   * @param y vertical offset
+   * @param isContextMenu true for context menus, false for other popups
+   * @param attributesOverride true if popup node attributes override position
+   * @param triggerEvent the event that triggered this popup (mouse click for example)
+   */
+  void openPopup(Element? anchorElement,
+                 optional DOMString position = "",
+                 long x,
+                 long y,
+                 boolean isContextMenu,
+                 boolean attributesOverride,
+                 Event? triggerEvent);
+
+  /**
+   * Open the popup at a specific screen position specified by x and y. This
+   * position may be adjusted if it would cause the popup to be off of the
+   * screen. The x and y coordinates are measured in CSS pixels, and like all
+   * screen coordinates, are given relative to the top left of the primary
+   * screen.
+   *
+   * @param isContextMenu true for context menus, false for other popups
+   * @param x horizontal screen position
+   * @param y vertical screen position
+   * @param triggerEvent the event that triggered this popup (mouse click for example)
+   */
+  void openPopupAtScreen(long x, long y,
+                         boolean isContextMenu,
+                         Event? triggerEvent);
+
+  /**
+   * Open the popup anchored at a specific screen rectangle. This function is
+   * similar to openPopup except that that rectangle of the anchor is supplied
+   * rather than an element. The anchor rectangle arguments are screen
+   * coordinates.
+   */
+  void openPopupAtScreenRect(optional DOMString position = "",
+                             long x,
+                             long y,
+                             long width,
+                             long height,
+                             boolean isContextMenu,
+                             boolean attributesOverride,
+                             Event? triggerEvent);
+
+  /**
+   * Returns the state of the popup:
+   *   closed - the popup is closed
+   *   open - the popup is open
+   *   showing - the popup is in the process of being shown
+   *   hiding - the popup is in the process of being hidden
+   */
+  readonly attribute DOMString popupState;
+
+  /**
+   * The node that triggered the popup. If the popup is not open, will return
+   * null.
+   */
+  readonly attribute Node? triggerNode;
+
+  /**
+   * Retrieve the anchor that was specified to openPopup or for menupopups in a
+   * menu, the parent menu.
+   */
+  readonly attribute Element? anchorNode;
+
+  /**
+   * Retrieve the screen rectangle of the popup, including the area occupied by
+   * any titlebar or borders present.
+   */
+  DOMRect getOuterScreenRect();
+
+  /**
+   * Move an open popup to the given anchor position. The arguments have the same
+   * meaning as the corresponding argument to openPopup. This method has no effect
+   * on popups that are not open.
+   */
+  void moveToAnchor(Element? anchorElement,
+                    optional DOMString position = "",
+                    long x, long y,
+                    boolean attributesOverride);
+
+  /** Returns the alignment position where the popup has appeared relative to its
+   *  anchor node or point, accounting for any flipping that occurred.
+   */
+  readonly attribute DOMString alignmentPosition;
+  readonly attribute long alignmentOffset;
+
+  void setConstraintRect(DOMRectReadOnly rect);
+};