262 lines
7.2 KiB
C++
262 lines
7.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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//
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// Eric Vaughan
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// Netscape Communications
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//
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// See documentation in associated header file
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//
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#include "nsGrippyFrame.h"
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#include "nsScrollbarButtonFrame.h"
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#include "nsIStyleContext.h"
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#include "nsIPresContext.h"
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#include "nsIContent.h"
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#include "nsCOMPtr.h"
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#include "nsHTMLIIDs.h"
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#include "nsUnitConversion.h"
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#include "nsINameSpaceManager.h"
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#include "nsHTMLAtoms.h"
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#include "nsXULAtoms.h"
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//#include "nsSliderFrame.h"
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#include "nsIDOMElement.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocument.h"
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#include "nsHTMLParts.h"
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#include "nsIPresShell.h"
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#include "nsIView.h"
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#include "nsIViewManager.h"
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#include "nsHTMLContainerFrame.h"
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//
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// NS_NewToolbarFrame
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//
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// Creates a new Toolbar frame and returns it in |aNewFrame|
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//
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nsresult
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NS_NewGrippyFrame ( nsIPresShell* aPresShell, nsIFrame** aNewFrame )
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{
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NS_PRECONDITION(aNewFrame, "null OUT ptr");
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if (nsnull == aNewFrame) {
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return NS_ERROR_NULL_POINTER;
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}
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nsGrippyFrame* it = new (aPresShell) nsGrippyFrame (aPresShell);
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if (nsnull == it)
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return NS_ERROR_OUT_OF_MEMORY;
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*aNewFrame = it;
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return NS_OK;
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} // NS_NewGrippyFrame
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nsGrippyFrame::nsGrippyFrame(nsIPresShell* aShell):nsButtonBoxFrame(aShell),mCollapsed(PR_FALSE)
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{
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}
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void
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nsGrippyFrame::MouseClicked (nsIPresContext* aPresContext, nsGUIEvent* aEvent)
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{
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nsButtonBoxFrame::MouseClicked(aPresContext, aEvent);
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nsIFrame* splitter;
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nsScrollbarButtonFrame::GetParentWithTag(nsXULAtoms::splitter, this, splitter);
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if (splitter == nsnull)
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return;
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// get the splitters content node
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nsCOMPtr<nsIContent> content;
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splitter->GetContent(getter_AddRefs(content));
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nsString a(NS_LITERAL_STRING("collapsed"));
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nsString value;
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if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttr(kNameSpaceID_None, nsXULAtoms::state, value))
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{
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if (value.Equals(NS_LITERAL_STRING("collapsed")))
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a.Assign(NS_LITERAL_STRING("open"));
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}
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content->SetAttr(kNameSpaceID_None, nsXULAtoms::state, a, PR_TRUE);
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}
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/*
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void
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nsGrippyFrame::MouseClicked(nsIPresContext* aPresContext)
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{
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nsString style;
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if (mCollapsed) {
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style = mCollapsedChildStyle;
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} else {
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// when clicked see if we are in a splitter.
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nsIFrame* splitter;
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nsScrollbarButtonFrame::GetParentWithTag(nsXULAtoms::splitter, this, splitter);
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if (splitter == nsnull)
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return;
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// get the splitters content node
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nsCOMPtr<nsIContent> content;
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splitter->GetContent(getter_AddRefs(content));
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// get the collapse attribute. If the attribute is not set collapse
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// the child before otherwise collapse the child after
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PRBool before = PR_TRUE;
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nsString value;
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if (NS_CONTENT_ATTR_HAS_VALUE == content->GetAttr(kNameSpaceID_None, nsXULAtoms::collapse, value))
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{
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if (value=="after")
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before = PR_FALSE;
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}
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// find the child just in the box just before the splitter. If we are not currently collapsed then
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// then get the childs style attribute and store it. Then set the child style attribute to be display none.
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// if we are already collapsed then set the child's style back to our stored value.
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nsIFrame* child = GetChildBeforeAfter(splitter,before);
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if (child == nsnull)
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return;
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child->GetContent(getter_AddRefs(mCollapsedChild));
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style = "visibility: collapse";
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mCollapsedChildStyle = "";
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mCollapsedChild->GetAttr(kNameSpaceID_None, nsHTMLAtoms::style, mCollapsedChildStyle);
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}
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mCollapsedChild->SetAttr(kNameSpaceID_None, nsHTMLAtoms::style, style, PR_TRUE);
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mCollapsed = !mCollapsed;
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}
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*/
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nsIFrame*
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nsGrippyFrame::GetChildBeforeAfter(nsIPresContext* aPresContext, nsIFrame* start, PRBool before)
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{
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nsIFrame* parent = nsnull;
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start->GetParent(&parent);
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PRInt32 index = IndexOf(aPresContext, parent,start);
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PRInt32 count = CountFrames(aPresContext, parent);
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if (index == -1)
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return nsnull;
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if (before) {
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if (index == 0) {
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return nsnull;
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}
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return GetChildAt(aPresContext, parent, index-1);
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}
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if (index == count-1)
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return nsnull;
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return GetChildAt(aPresContext, parent, index+1);
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}
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PRInt32
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nsGrippyFrame::IndexOf(nsIPresContext* aPresContext, nsIFrame* parent, nsIFrame* child)
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{
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PRInt32 count = 0;
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nsIFrame* childFrame;
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parent->FirstChild(aPresContext, nsnull, &childFrame);
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while (nsnull != childFrame)
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{
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if (childFrame == child)
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return count;
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nsresult rv = childFrame->GetNextSibling(&childFrame);
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NS_ASSERTION(rv == NS_OK,"failed to get next child");
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count++;
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}
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return -1;
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}
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PRInt32
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nsGrippyFrame::CountFrames(nsIPresContext* aPresContext, nsIFrame* aFrame)
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{
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PRInt32 count = 0;
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nsIFrame* childFrame;
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aFrame->FirstChild(aPresContext, nsnull, &childFrame);
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while (nsnull != childFrame)
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{
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nsresult rv = childFrame->GetNextSibling(&childFrame);
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NS_ASSERTION(rv == NS_OK,"failed to get next child");
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count++;
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}
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return count;
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}
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nsIFrame*
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nsGrippyFrame::GetChildAt(nsIPresContext* aPresContext, nsIFrame* parent, PRInt32 index)
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{
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PRInt32 count = 0;
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nsIFrame* childFrame;
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parent->FirstChild(aPresContext, nsnull, &childFrame);
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while (nsnull != childFrame)
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{
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if (count == index)
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return childFrame;
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nsresult rv = childFrame->GetNextSibling(&childFrame);
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NS_ASSERTION(rv == NS_OK,"failed to get next child");
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count++;
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}
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return nsnull;
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}
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#ifdef DEBUG
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NS_IMETHODIMP
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nsGrippyFrame::GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("Grippy"), aResult);
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}
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#endif
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