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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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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/. */
+
+//
+// nsMenuPopupFrame
+//
+
+#ifndef nsMenuPopupFrame_h__
+#define nsMenuPopupFrame_h__
+
+#include "mozilla/Attributes.h"
+#include "nsIAtom.h"
+#include "nsGkAtoms.h"
+#include "nsCOMPtr.h"
+#include "nsMenuFrame.h"
+
+#include "nsBoxFrame.h"
+#include "nsMenuParent.h"
+
+#include "nsITimer.h"
+
+#include "Units.h"
+
+class nsIWidget;
+
+// XUL popups can be in several different states. When opening a popup, the
+// state changes as follows:
+// ePopupClosed - initial state
+// ePopupShowing - during the period when the popupshowing event fires
+// ePopupOpening - between the popupshowing event and being visible. Creation
+// of the child frames, layout and reflow occurs in this
+// state. The popup is stored in the popup manager's list of
+// open popups during this state.
+// ePopupVisible - layout is done and the popup's view and widget are made
+// visible. The popup is visible on screen but may be
+// transitioning. The popupshown event has not yet fired.
+// ePopupShown - the popup has been shown and is fully ready. This state is
+// assigned just before the popupshown event fires.
+// When closing a popup:
+// ePopupHidden - during the period when the popuphiding event fires and
+// the popup is removed.
+// ePopupClosed - the popup's widget is made invisible.
+enum nsPopupState {
+ // state when a popup is not open
+ ePopupClosed,
+ // state from when a popup is requested to be shown to after the
+ // popupshowing event has been fired.
+ ePopupShowing,
+ // state while a popup is waiting to be laid out and positioned
+ ePopupPositioning,
+ // state while a popup is open but the widget is not yet visible
+ ePopupOpening,
+ // state while a popup is visible and waiting for the popupshown event
+ ePopupVisible,
+ // state while a popup is open and visible on screen
+ ePopupShown,
+ // state from when a popup is requested to be hidden to when it is closed.
+ ePopupHiding,
+ // state which indicates that the popup was hidden without firing the
+ // popuphiding or popuphidden events. It is used when executing a menu
+ // command because the menu needs to be hidden before the command event
+ // fires, yet the popuphiding and popuphidden events are fired after. This
+ // state can also occur when the popup is removed because the document is
+ // unloaded.
+ ePopupInvisible
+};
+
+enum ConsumeOutsideClicksResult {
+ ConsumeOutsideClicks_ParentOnly = 0, // Only consume clicks on the parent anchor
+ ConsumeOutsideClicks_True = 1, // Always consume clicks
+ ConsumeOutsideClicks_Never = 2 // Never consume clicks
+};
+
+// How a popup may be flipped. Flipping to the outside edge is like how
+// a submenu would work. The entire popup is flipped to the opposite side
+// of the anchor.
+enum FlipStyle {
+ FlipStyle_None = 0,
+ FlipStyle_Outside = 1,
+ FlipStyle_Inside = 2
+};
+
+// Values for the flip attribute
+enum FlipType {
+ FlipType_Default = 0,
+ FlipType_None = 1, // don't try to flip or translate to stay onscreen
+ FlipType_Both = 2, // flip in both directions
+ FlipType_Slide = 3 // allow the arrow to "slide" instead of resizing
+};
+
+enum MenuPopupAnchorType {
+ MenuPopupAnchorType_Node = 0, // anchored to a node
+ MenuPopupAnchorType_Point = 1, // unanchored and positioned at a screen point
+ MenuPopupAnchorType_Rect = 2, // anchored at a screen rectangle
+};
+
+// values are selected so that the direction can be flipped just by
+// changing the sign
+#define POPUPALIGNMENT_NONE 0
+#define POPUPALIGNMENT_TOPLEFT 1
+#define POPUPALIGNMENT_TOPRIGHT -1
+#define POPUPALIGNMENT_BOTTOMLEFT 2
+#define POPUPALIGNMENT_BOTTOMRIGHT -2
+
+#define POPUPALIGNMENT_LEFTCENTER 16
+#define POPUPALIGNMENT_RIGHTCENTER -16
+#define POPUPALIGNMENT_TOPCENTER 17
+#define POPUPALIGNMENT_BOTTOMCENTER 18
+
+// The constants here are selected so that horizontally and vertically flipping
+// can be easily handled using the two flip macros below.
+#define POPUPPOSITION_UNKNOWN -1
+#define POPUPPOSITION_BEFORESTART 0
+#define POPUPPOSITION_BEFOREEND 1
+#define POPUPPOSITION_AFTERSTART 2
+#define POPUPPOSITION_AFTEREND 3
+#define POPUPPOSITION_STARTBEFORE 4
+#define POPUPPOSITION_ENDBEFORE 5
+#define POPUPPOSITION_STARTAFTER 6
+#define POPUPPOSITION_ENDAFTER 7
+#define POPUPPOSITION_OVERLAP 8
+#define POPUPPOSITION_AFTERPOINTER 9
+#define POPUPPOSITION_SELECTION 10
+
+#define POPUPPOSITION_HFLIP(v) (v ^ 1)
+#define POPUPPOSITION_VFLIP(v) (v ^ 2)
+
+nsIFrame* NS_NewMenuPopupFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+class nsView;
+class nsMenuPopupFrame;
+
+// this class is used for dispatching popupshown events asynchronously.
+class nsXULPopupShownEvent : public mozilla::Runnable,
+ public nsIDOMEventListener
+{
+public:
+ nsXULPopupShownEvent(nsIContent *aPopup, nsPresContext* aPresContext)
+ : mPopup(aPopup), mPresContext(aPresContext)
+ {
+ }
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_NSIRUNNABLE
+ NS_DECL_NSIDOMEVENTLISTENER
+
+ void CancelListener();
+
+protected:
+ virtual ~nsXULPopupShownEvent() { }
+
+private:
+ nsCOMPtr<nsIContent> mPopup;
+ RefPtr<nsPresContext> mPresContext;
+};
+
+class nsMenuPopupFrame final : public nsBoxFrame, public nsMenuParent,
+ public nsIReflowCallback
+{
+public:
+ NS_DECL_QUERYFRAME_TARGET(nsMenuPopupFrame)
+ NS_DECL_QUERYFRAME
+ NS_DECL_FRAMEARENA_HELPERS
+
+ explicit nsMenuPopupFrame(nsStyleContext* aContext);
+
+ // nsMenuParent interface
+ virtual nsMenuFrame* GetCurrentMenuItem() override;
+ NS_IMETHOD SetCurrentMenuItem(nsMenuFrame* aMenuItem) override;
+ virtual void CurrentMenuIsBeingDestroyed() override;
+ NS_IMETHOD ChangeMenuItem(nsMenuFrame* aMenuItem,
+ bool aSelectFirstItem,
+ bool aFromKey) override;
+
+ // as popups are opened asynchronously, the popup pending state is used to
+ // prevent multiple requests from attempting to open the same popup twice
+ nsPopupState PopupState() { return mPopupState; }
+ void SetPopupState(nsPopupState aPopupState) { mPopupState = aPopupState; }
+
+ NS_IMETHOD SetActive(bool aActiveFlag) override { return NS_OK; } // We don't care.
+ virtual bool IsActive() override { return false; }
+ virtual bool IsMenuBar() override { return false; }
+
+ /*
+ * When this popup is open, should clicks outside of it be consumed?
+ * Return true if the popup should rollup on an outside click,
+ * but consume that click so it can't be used for anything else.
+ * Return false to allow clicks outside the popup to activate content
+ * even when the popup is open.
+ * ---------------------------------------------------------------------
+ *
+ * Should clicks outside of a popup be eaten?
+ *
+ * Menus Autocomplete Comboboxes
+ * Mac Eat No Eat
+ * Win No No Eat
+ * Unix Eat No Eat
+ *
+ */
+ ConsumeOutsideClicksResult ConsumeOutsideClicks();
+
+ virtual bool IsContextMenu() override { return mIsContextMenu; }
+
+ virtual bool MenuClosed() override { return true; }
+
+ virtual void LockMenuUntilClosed(bool aLock) override;
+ virtual bool IsMenuLocked() override { return mIsMenuLocked; }
+
+ nsIWidget* GetWidget();
+
+ // The dismissal listener gets created and attached to the window.
+ void AttachedDismissalListener();
+
+ // Overridden methods
+ virtual void Init(nsIContent* aContent,
+ nsContainerFrame* aParent,
+ nsIFrame* aPrevInFlow) override;
+
+ virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+ nsIAtom* aAttribute,
+ int32_t aModType) override;
+
+ virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+
+ // returns true if the popup is a panel with the noautohide attribute set to
+ // true. These panels do not roll up automatically.
+ bool IsNoAutoHide() const;
+
+ nsPopupLevel PopupLevel() const
+ {
+ return PopupLevel(IsNoAutoHide());
+ }
+
+ void EnsureWidget();
+
+ nsresult CreateWidgetForView(nsView* aView);
+ uint8_t GetShadowStyle();
+
+ virtual void SetInitialChildList(ChildListID aListID,
+ nsFrameList& aChildList) override;
+
+ virtual bool IsLeaf() const override;
+
+ // layout, position and display the popup as needed
+ void LayoutPopup(nsBoxLayoutState& aState, nsIFrame* aParentMenu,
+ nsIFrame* aAnchor, bool aSizedToPopup);
+
+ nsView* GetRootViewForPopup(nsIFrame* aStartFrame);
+
+ // Set the position of the popup either relative to the anchor aAnchorFrame
+ // (or the frame for mAnchorContent if aAnchorFrame is null), anchored at a
+ // rectangle, or at a specific point if a screen position is set. The popup
+ // will be adjusted so that it is on screen. If aIsMove is true, then the
+ // popup is being moved, and should not be flipped. If aNotify is true, then
+ // a popuppositioned event is sent.
+ nsresult SetPopupPosition(nsIFrame* aAnchorFrame, bool aIsMove,
+ bool aSizedToPopup, bool aNotify);
+
+ bool HasGeneratedChildren() { return mGeneratedChildren; }
+ void SetGeneratedChildren() { mGeneratedChildren = true; }
+
+ // called when the Enter key is pressed while the popup is open. This will
+ // just pass the call down to the current menu, if any. If a current menu
+ // should be opened as a result, this method should return the frame for
+ // that menu, or null if no menu should be opened. Also, calling Enter will
+ // reset the current incremental search string, calculated in
+ // FindMenuWithShortcut.
+ nsMenuFrame* Enter(mozilla::WidgetGUIEvent* aEvent);
+
+ nsPopupType PopupType() const { return mPopupType; }
+ bool IsMenu() override { return mPopupType == ePopupTypeMenu; }
+ bool IsOpen() override { return mPopupState == ePopupOpening ||
+ mPopupState == ePopupVisible ||
+ mPopupState == ePopupShown; }
+ bool IsVisible() { return mPopupState == ePopupVisible ||
+ mPopupState == ePopupShown; }
+
+ // Return true if the popup is for a menulist.
+ bool IsMenuList();
+
+ bool IsMouseTransparent() { return mMouseTransparent; }
+
+ static nsIContent* GetTriggerContent(nsMenuPopupFrame* aMenuPopupFrame);
+ void ClearTriggerContent() { mTriggerContent = nullptr; }
+
+ // returns true if the popup is in a content shell, or false for a popup in
+ // a chrome shell
+ bool IsInContentShell() { return mInContentShell; }
+
+ // the Initialize methods are used to set the anchor position for
+ // each way of opening a popup.
+ void InitializePopup(nsIContent* aAnchorContent,
+ nsIContent* aTriggerContent,
+ const nsAString& aPosition,
+ int32_t aXPos, int32_t aYPos,
+ MenuPopupAnchorType aAnchorType,
+ bool aAttributesOverride);
+
+ void InitializePopupAtRect(nsIContent* aTriggerContent,
+ const nsAString& aPosition,
+ const nsIntRect& aRect,
+ bool aAttributesOverride);
+
+ /**
+ * @param aIsContextMenu if true, then the popup is
+ * positioned at a slight offset from aXPos/aYPos to ensure the
+ * (presumed) mouse position is not over the menu.
+ */
+ void InitializePopupAtScreen(nsIContent* aTriggerContent,
+ int32_t aXPos, int32_t aYPos,
+ bool aIsContextMenu);
+
+ void InitializePopupWithAnchorAlign(nsIContent* aAnchorContent,
+ nsAString& aAnchor,
+ nsAString& aAlign,
+ int32_t aXPos, int32_t aYPos);
+
+ // indicate that the popup should be opened
+ void ShowPopup(bool aIsContextMenu);
+ // indicate that the popup should be hidden. The new state should either be
+ // ePopupClosed or ePopupInvisible.
+ void HidePopup(bool aDeselectMenu, nsPopupState aNewState);
+
+ // locate and return the menu frame that should be activated for the
+ // supplied key event. If doAction is set to true by this method,
+ // then the menu's action should be carried out, as if the user had pressed
+ // the Enter key. If doAction is false, the menu should just be highlighted.
+ // This method also handles incremental searching in menus so the user can
+ // type the first few letters of an item/s name to select it.
+ nsMenuFrame* FindMenuWithShortcut(nsIDOMKeyEvent* aKeyEvent, bool& doAction);
+
+ void ClearIncrementalString() { mIncrementalString.Truncate(); }
+ static bool IsWithinIncrementalTime(DOMTimeStamp time) {
+ return !sTimeoutOfIncrementalSearch || time - sLastKeyTime <= sTimeoutOfIncrementalSearch;
+ }
+
+ virtual nsIAtom* GetType() const override { return nsGkAtoms::menuPopupFrame; }
+
+#ifdef DEBUG_FRAME_DUMP
+ virtual nsresult GetFrameName(nsAString& aResult) const override
+ {
+ return MakeFrameName(NS_LITERAL_STRING("MenuPopup"), aResult);
+ }
+#endif
+
+ void EnsureMenuItemIsVisible(nsMenuFrame* aMenuFrame);
+
+ void ChangeByPage(bool aIsUp);
+
+ // Move the popup to the screen coordinate |aPos| in CSS pixels.
+ // If aUpdateAttrs is true, and the popup already has left or top attributes,
+ // then those attributes are updated to the new location.
+ // The frame may be destroyed by this method.
+ void MoveTo(const mozilla::CSSIntPoint& aPos, bool aUpdateAttrs);
+
+ void MoveToAnchor(nsIContent* aAnchorContent,
+ const nsAString& aPosition,
+ int32_t aXPos, int32_t aYPos,
+ bool aAttributesOverride);
+
+ bool GetAutoPosition();
+ void SetAutoPosition(bool aShouldAutoPosition);
+ void SetConsumeRollupEvent(uint32_t aConsumeMode);
+
+ nsIScrollableFrame* GetScrollFrame(nsIFrame* aStart);
+
+ void SetOverrideConstraintRect(mozilla::LayoutDeviceIntRect aRect) {
+ mOverrideConstraintRect = ToAppUnits(aRect, PresContext()->AppUnitsPerCSSPixel());
+ }
+
+ // For a popup that should appear anchored at the given rect, determine
+ // the screen area that it is constrained by. This will be the available
+ // area of the screen the popup should be displayed on. Content popups,
+ // however, will also be constrained by the content area, given by
+ // aRootScreenRect. All coordinates are in app units.
+ // For non-toplevel popups (which will always be panels), we will also
+ // constrain them to the available screen rect, ie they will not fall
+ // underneath the taskbar, dock or other fixed OS elements.
+ // This operates in device pixels.
+ mozilla::LayoutDeviceIntRect
+ GetConstraintRect(const mozilla::LayoutDeviceIntRect& aAnchorRect,
+ const mozilla::LayoutDeviceIntRect& aRootScreenRect,
+ nsPopupLevel aPopupLevel);
+
+ // Determines whether the given edges of the popup may be moved, where
+ // aHorizontalSide and aVerticalSide are one of the NS_SIDE_* constants, or
+ // 0 for no movement in that direction. aChange is the distance to move on
+ // those sides. If will be reset to 0 if the side cannot be adjusted at all
+ // in that direction. For example, a popup cannot be moved if it is anchored
+ // on a particular side.
+ //
+ // Later, when bug 357725 is implemented, we can make this adjust aChange by
+ // the amount that the side can be resized, so that minimums and maximums
+ // can be taken into account.
+ void CanAdjustEdges(int8_t aHorizontalSide,
+ int8_t aVerticalSide,
+ mozilla::LayoutDeviceIntPoint& aChange);
+
+ // Return true if the popup is positioned relative to an anchor.
+ bool IsAnchored() const { return mAnchorType != MenuPopupAnchorType_Point; }
+
+ // Return the anchor if there is one.
+ nsIContent* GetAnchor() const { return mAnchorContent; }
+
+ // Return the screen coordinates in CSS pixels of the popup,
+ // or (-1, -1, 0, 0) if anchored.
+ nsIntRect GetScreenAnchorRect() const { return mScreenRect; }
+
+ mozilla::LayoutDeviceIntPoint GetLastClientOffset() const
+ {
+ return mLastClientOffset;
+ }
+
+ // Return the alignment of the popup
+ int8_t GetAlignmentPosition() const;
+
+ // Return the offset applied to the alignment of the popup
+ nscoord GetAlignmentOffset() const { return mAlignmentOffset; }
+
+ // Clear the mPopupShownDispatcher, remove the listener and return true if
+ // mPopupShownDispatcher was non-null.
+ bool ClearPopupShownDispatcher()
+ {
+ if (mPopupShownDispatcher) {
+ mPopupShownDispatcher->CancelListener();
+ mPopupShownDispatcher = nullptr;
+ return true;
+ }
+
+ return false;
+ }
+
+ void ShowWithPositionedEvent() {
+ mPopupState = ePopupPositioning;
+ mShouldAutoPosition = true;
+ }
+
+ // nsIReflowCallback
+ virtual bool ReflowFinished() override;
+ virtual void ReflowCallbackCanceled() override;
+
+protected:
+
+ // returns the popup's level.
+ nsPopupLevel PopupLevel(bool aIsNoAutoHide) const;
+
+ // redefine to tell the box system not to move the views.
+ virtual uint32_t GetXULLayoutFlags() override;
+
+ void InitPositionFromAnchorAlign(const nsAString& aAnchor,
+ const nsAString& aAlign);
+
+ // return the position where the popup should be, when it should be
+ // anchored at anchorRect. aHFlip and aVFlip will be set if the popup may be
+ // flipped in that direction if there is not enough space available.
+ nsPoint AdjustPositionForAnchorAlign(nsRect& anchorRect,
+ FlipStyle& aHFlip, FlipStyle& aVFlip);
+
+ // For popups that are going to align to their selected item, get the frame of
+ // the selected item.
+ nsIFrame* GetSelectedItemForAlignment();
+
+ // check if the popup will fit into the available space and resize it. This
+ // method handles only one axis at a time so is called twice, once for
+ // horizontal and once for vertical. All arguments are specified for this
+ // one axis. All coordinates are in app units relative to the screen.
+ // aScreenPoint - the point where the popup should appear
+ // aSize - the size of the popup
+ // aScreenBegin - the left or top edge of the screen
+ // aScreenEnd - the right or bottom edge of the screen
+ // aAnchorBegin - the left or top edge of the anchor rectangle
+ // aAnchorEnd - the right or bottom edge of the anchor rectangle
+ // aMarginBegin - the left or top margin of the popup
+ // aMarginEnd - the right or bottom margin of the popup
+ // aOffsetForContextMenu - the additional offset to add for context menus
+ // aFlip - how to flip or resize the popup when there isn't space
+ // aFlipSide - pointer to where current flip mode is stored
+ nscoord FlipOrResize(nscoord& aScreenPoint, nscoord aSize,
+ nscoord aScreenBegin, nscoord aScreenEnd,
+ nscoord aAnchorBegin, nscoord aAnchorEnd,
+ nscoord aMarginBegin, nscoord aMarginEnd,
+ nscoord aOffsetForContextMenu, FlipStyle aFlip,
+ bool aIsOnEnd, bool* aFlipSide);
+
+ // check if the popup can fit into the available space by "sliding" (i.e.,
+ // by having the anchor arrow slide along one axis and only resizing if that
+ // can't provide the requested size). Only one axis can be slid - the other
+ // axis is "flipped" as normal. This method can handle either axis, but is
+ // only called for the sliding axis. All coordinates are in app units
+ // relative to the screen.
+ // aScreenPoint - the point where the popup should appear
+ // aSize - the size of the popup
+ // aScreenBegin - the left or top edge of the screen
+ // aScreenEnd - the right or bottom edge of the screen
+ // aOffset - the amount by which the arrow must be slid such that it is
+ // still aligned with the anchor.
+ // Result is the new size of the popup, which will typically be the same
+ // as aSize, unless aSize is greater than the screen width/height.
+ nscoord SlideOrResize(nscoord& aScreenPoint, nscoord aSize,
+ nscoord aScreenBegin, nscoord aScreenEnd,
+ nscoord *aOffset);
+
+ // Move the popup to the position specified in its |left| and |top| attributes.
+ void MoveToAttributePosition();
+
+ /**
+ * Return whether the popup direction should be RTL.
+ * If the popup has an anchor, its direction is the anchor direction.
+ * Otherwise, its the general direction of the UI.
+ *
+ * Return whether the popup direction should be RTL.
+ */
+ bool IsDirectionRTL() const {
+ return mAnchorContent && mAnchorContent->GetPrimaryFrame()
+ ? mAnchorContent->GetPrimaryFrame()->StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL
+ : StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL;
+ }
+
+ // Create a popup view for this frame. The view is added a child of the root
+ // view, and is initially hidden.
+ void CreatePopupView();
+
+ nsString mIncrementalString; // for incremental typing navigation
+
+ // the content that the popup is anchored to, if any, which may be in a
+ // different document than the popup.
+ nsCOMPtr<nsIContent> mAnchorContent;
+
+ // the content that triggered the popup, typically the node where the mouse
+ // was clicked. It will be cleared when the popup is hidden.
+ nsCOMPtr<nsIContent> mTriggerContent;
+
+ nsMenuFrame* mCurrentMenu; // The current menu that is active.
+
+ RefPtr<nsXULPopupShownEvent> mPopupShownDispatcher;
+
+ // The popup's screen rectangle in app units.
+ nsIntRect mUsedScreenRect;
+
+ // A popup's preferred size may be different than its actual size stored in
+ // mRect in the case where the popup was resized because it was too large
+ // for the screen. The preferred size mPrefSize holds the full size the popup
+ // would be before resizing. Computations are performed using this size.
+ nsSize mPrefSize;
+
+ // The position of the popup, in CSS pixels.
+ // The screen coordinates, if set to values other than -1,
+ // override mXPos and mYPos.
+ int32_t mXPos;
+ int32_t mYPos;
+ nsIntRect mScreenRect;
+
+ // If the panel prefers to "slide" rather than resize, then the arrow gets
+ // positioned at this offset (along either the x or y axis, depending on
+ // mPosition)
+ nscoord mAlignmentOffset;
+
+ // The value of the client offset of our widget the last time we positioned
+ // ourselves. We store this so that we can detect when it changes but the
+ // position of our widget didn't change.
+ mozilla::LayoutDeviceIntPoint mLastClientOffset;
+
+ nsPopupType mPopupType; // type of popup
+ nsPopupState mPopupState; // open state of the popup
+
+ // popup alignment relative to the anchor node
+ int8_t mPopupAlignment;
+ int8_t mPopupAnchor;
+ int8_t mPosition;
+
+ // One of PopupBoxObject::ROLLUP_DEFAULT/ROLLUP_CONSUME/ROLLUP_NO_CONSUME
+ uint8_t mConsumeRollupEvent;
+ FlipType mFlip; // Whether to flip
+
+ struct ReflowCallbackData {
+ ReflowCallbackData() :
+ mPosted(false),
+ mAnchor(nullptr),
+ mSizedToPopup(false)
+ {}
+ void MarkPosted(nsIFrame* aAnchor, bool aSizedToPopup) {
+ mPosted = true;
+ mAnchor = aAnchor;
+ mSizedToPopup = aSizedToPopup;
+ }
+ void Clear() {
+ mPosted = false;
+ mAnchor = nullptr;
+ mSizedToPopup = false;
+ }
+ bool mPosted;
+ nsIFrame* mAnchor;
+ bool mSizedToPopup;
+ };
+ ReflowCallbackData mReflowCallbackData;
+
+ bool mIsOpenChanged; // true if the open state changed since the last layout
+ bool mIsContextMenu; // true for context menus
+ // true if we need to offset the popup to ensure it's not under the mouse
+ bool mAdjustOffsetForContextMenu;
+ bool mGeneratedChildren; // true if the contents have been created
+
+ bool mMenuCanOverlapOSBar; // can we appear over the taskbar/menubar?
+ bool mShouldAutoPosition; // Should SetPopupPosition be allowed to auto position popup?
+ bool mInContentShell; // True if the popup is in a content shell
+ bool mIsMenuLocked; // Should events inside this menu be ignored?
+ bool mMouseTransparent; // True if this is a popup is transparent to mouse events
+
+ // the flip modes that were used when the popup was opened
+ bool mHFlip;
+ bool mVFlip;
+
+ // How the popup is anchored.
+ MenuPopupAnchorType mAnchorType;
+
+ nsRect mOverrideConstraintRect;
+
+ static int8_t sDefaultLevelIsTop;
+
+ static DOMTimeStamp sLastKeyTime;
+
+ // If 0, never timed out. Otherwise, the value is in milliseconds.
+ static uint32_t sTimeoutOfIncrementalSearch;
+}; // class nsMenuPopupFrame
+
+#endif