The Tor Browser: layout/xul/tree/nsTreeColFrame.h@7e26c7da4463

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "mozilla/Attributes.h"

     7 #include "nsBoxFrame.h"

     9 class nsITreeBoxObject;

    11 nsIFrame* NS_NewTreeColFrame(nsIPresShell* aPresShell,

    12                              nsStyleContext* aContext);

    14 class nsTreeColFrame : public nsBoxFrame

    15 {

    16 public:

    17   NS_DECL_FRAMEARENA_HELPERS

    19   nsTreeColFrame(nsIPresShell* aPresShell,

    20                  nsStyleContext* aContext):

    21     nsBoxFrame(aPresShell, aContext) {}

    23   virtual void Init(nsIContent*      aContent,

    24                     nsIFrame*        aParent,

    25                     nsIFrame*        aPrevInFlow) MOZ_OVERRIDE;

    27   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;

    29   virtual void BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,

    30                                            const nsRect&           aDirtyRect,

    31                                            const nsDisplayListSet& aLists) MOZ_OVERRIDE;

    33   virtual nsresult AttributeChanged(int32_t aNameSpaceID,

    34                                     nsIAtom* aAttribute,

    35                                     int32_t aModType) MOZ_OVERRIDE;

    37   virtual void SetBounds(nsBoxLayoutState& aBoxLayoutState, const nsRect& aRect,

    38                          bool aRemoveOverflowArea = false) MOZ_OVERRIDE;

    40   friend nsIFrame* NS_NewTreeColFrame(nsIPresShell* aPresShell,

    41                                       nsStyleContext* aContext);

    43 protected:

    44   virtual ~nsTreeColFrame();

    46   /**

    47    * @return the tree box object of the tree this column belongs to, or nullptr.

    48    */

    49   nsITreeBoxObject* GetTreeBoxObject();

    51   /**

    52    * Helper method that gets the nsITreeColumns object this column belongs to

    53    * and calls InvalidateColumns() on it.

    54    */

    55   void InvalidateColumns(bool aCanWalkFrameTree = true);

    56 };

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