Commit 9d8145f0 authored by troy%netscape.com's avatar troy%netscape.com
Browse files

Added GetAdditionalChildListName() as a way to discover additional 

named child lists at runtime
parent 081c78e6

layout/base/public/nsIFrame.h

+13 −0
Original line number Diff line number Diff line
@@ -204,6 +204,19 @@ public: 
  NS_IMETHOD  MoveTo(nscoord aX, nscoord aY) = 0;

  NS_IMETHOD  SizeTo(nscoord aWidth, nscoord aHeight) = 0;



  /**

   * Used to iterate the list of additional child list names. Returns the atom

   * name for the additional child list at the specified 0-based index, or a

   * NULL pointer if there are no more named child lists.

   *

   * Note that the list is only the additional named child lists and does not

   * include the unnamed principal child list.

   *

   * @return NS_ERROR_INVALID_ARG if the index is < 0 and NS_OK otherwise

   */

  NS_IMETHOD  GetAdditionalChildListName(PRInt32   aIndex,

                                         nsIAtom*& aListName) const = 0;



  /**

   * Get the first child frame from the specified child list.

   *

layout/generic/nsFrame.cpp

+8 −0
Original line number Diff line number Diff line
@@ -524,6 +524,14 @@ NS_IMETHODIMP nsFrame::SizeTo(nscoord aWidth, nscoord aHeight) 


// Child frame enumeration



NS_IMETHODIMP

nsFrame::GetAdditionalChildListName(PRInt32 aIndex, nsIAtom*& aListName) const

{

  NS_PRECONDITION(aIndex >= 0, "invalid index number");

  aListName = nsnull;

  return aIndex < 0 ? NS_ERROR_INVALID_ARG : NS_OK;

}



NS_IMETHODIMP nsFrame::FirstChild(nsIAtom* aListName, nsIFrame*& aFirstChild) const

{

  aFirstChild = nsnull;

layout/generic/nsFrame.h

+1 −0
Original line number Diff line number Diff line
@@ -133,6 +133,7 @@ public: 
  NS_IMETHOD  SetRect(const nsRect& aRect);

  NS_IMETHOD  MoveTo(nscoord aX, nscoord aY);

  NS_IMETHOD  SizeTo(nscoord aWidth, nscoord aHeight);

  NS_IMETHOD  GetAdditionalChildListName(PRInt32 aIndex, nsIAtom*& aListName) const;

  NS_IMETHOD  FirstChild(nsIAtom* aListName, nsIFrame*& aFirstChild) const;

  NS_IMETHOD  Paint(nsIPresContext&      aPresContext,

                    nsIRenderingContext& aRenderingContext,

layout/generic/nsIFrame.h

+13 −0
Original line number Diff line number Diff line
@@ -204,6 +204,19 @@ public: 
  NS_IMETHOD  MoveTo(nscoord aX, nscoord aY) = 0;

  NS_IMETHOD  SizeTo(nscoord aWidth, nscoord aHeight) = 0;



  /**

   * Used to iterate the list of additional child list names. Returns the atom

   * name for the additional child list at the specified 0-based index, or a

   * NULL pointer if there are no more named child lists.

   *

   * Note that the list is only the additional named child lists and does not

   * include the unnamed principal child list.

   *

   * @return NS_ERROR_INVALID_ARG if the index is < 0 and NS_OK otherwise

   */

  NS_IMETHOD  GetAdditionalChildListName(PRInt32   aIndex,

                                         nsIAtom*& aListName) const = 0;



  /**

   * Get the first child frame from the specified child list.

   *

layout/html/base/src/nsFrame.cpp

+8 −0
Original line number Diff line number Diff line
@@ -524,6 +524,14 @@ NS_IMETHODIMP nsFrame::SizeTo(nscoord aWidth, nscoord aHeight) 


// Child frame enumeration



NS_IMETHODIMP

nsFrame::GetAdditionalChildListName(PRInt32 aIndex, nsIAtom*& aListName) const

{

  NS_PRECONDITION(aIndex >= 0, "invalid index number");

  aListName = nsnull;

  return aIndex < 0 ? NS_ERROR_INVALID_ARG : NS_OK;

}



NS_IMETHODIMP nsFrame::FirstChild(nsIAtom* aListName, nsIFrame*& aFirstChild) const

{

  aFirstChild = nsnull;