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beginning work on ScrollToFrame

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git-svn-id: svn://10.0.0.236/trunk@21408 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
buster%netscape.com
1999-02-20 21:29:27 +00:00
parent 8a7091809c
commit 4df8a07f61
3 changed files with 59 additions and 14 deletions
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32
mozilla/editor/base/nsEditor.cpp
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@@ -56,7 +56,7 @@
#include "SplitElementTxn.h"
#include "JoinElementTxn.h"
static NS_DEFINE_IID(kIContentIID, NS_ICONTENT_IID);
static NS_DEFINE_IID(kIDOMTextIID, NS_IDOMTEXT_IID);
static NS_DEFINE_IID(kIDOMElementIID, NS_IDOMELEMENT_IID);
static NS_DEFINE_IID(kIDOMNodeIID, NS_IDOMNODE_IID);
@@ -652,7 +652,6 @@ nsEditor::EndTransaction()
nsresult nsEditor::ScrollIntoView(PRBool aScrollToBegin)
{
nsresult result;
/*
if (mPresShell)
{
nsCOMPtr<nsIDOMSelection> selection;
@@ -660,11 +659,30 @@ nsresult nsEditor::ScrollIntoView(PRBool aScrollToBegin)
if (NS_SUCCEEDED(result) && selection)
{
// get the content of the start of the selection
// get its layout object
// get its frame
// scroll that frame into view
mPresShell->
*/
nsCOMPtr<nsIDOMNode>startNode;
PRInt32 offset;
result = selection->GetAnchorNodeAndOffset(getter_AddRefs(startNode), &offset);
if (NS_SUCCEEDED(result) && startNode)
{ // get the content from the node
nsCOMPtr<nsIContent>startContent;
result = startNode->QueryInterface(kIContentIID, getter_AddRefs(startContent));
if (NS_SUCCEEDED(result) && startContent)
{ // get its frame
nsIFrame *frame=nsnull;
result = mPresShell->GetPrimaryFrameFor(startContent, &frame);
if (NS_SUCCEEDED(result) && frame)
{ // scroll that frame into view
result = mPresShell->ScrollFrameIntoView(frame,
0, NS_PRESSHELL_SCROLL_TOP |NS_PRESSHELL_SCROLL_ANYWHERE,
0, NS_PRESSHELL_SCROLL_LEFT|NS_PRESSHELL_SCROLL_ANYWHERE);
}
}
}
}
}
else {
result = NS_ERROR_NOT_INITIALIZED;
}
return result;
}