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hyatt%netscape.com 1999-08-24 09:57:11 +00:00
parent 78bda58ee6
commit 04b1b1dc8f
4 changed files with 89 additions and 11 deletions
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74
layout/xul/base/src/nsTreeCellFrame.cpp
View File

@ -255,10 +255,8 @@ nsTreeCellFrame::HandleMouseExitEvent(nsIPresContext& aPresContext,
return NS_OK;
}
nsresult
nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
void
nsTreeCellFrame::ToggleOpenClose()
{
if (!mIsHeader)
{
@ -272,7 +270,7 @@ nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
nsCOMPtr<nsIDOMElement> treeItem( do_QueryInterface(treeItemContent) );
NS_ASSERTION(treeItem, "not a DOM element");
if (! treeItem)
return NS_ERROR_UNEXPECTED;
return;
// Take the tree item content and toggle the value of its open attribute.
nsAutoString attrValue;
@ -290,6 +288,72 @@ nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
treeItem->SetAttribute("open", "true");
}
}
}
void
nsTreeCellFrame::Open()
{
if (!mIsHeader)
{
// Perform an expand/collapse
// Iterate up the chain to the row and then to the item.
nsCOMPtr<nsIContent> treeItemContent;
nsCOMPtr<nsIContent> treeRowContent;
mContent->GetParent(*getter_AddRefs(treeRowContent));
treeRowContent->GetParent(*getter_AddRefs(treeItemContent));
nsCOMPtr<nsIDOMElement> treeItem( do_QueryInterface(treeItemContent) );
NS_ASSERTION(treeItem, "not a DOM element");
if (! treeItem)
return;
// Take the tree item content and toggle the value of its open attribute.
nsAutoString attrValue;
nsresult result = treeItem->GetAttribute("open", attrValue);
attrValue.ToLowerCase();
PRBool isExpanded = (attrValue=="true");
if (!isExpanded) {
// We're expanding and need to add frames to the flow.
treeItem->SetAttribute("open", "true");
}
}
}
void
nsTreeCellFrame::Close()
{
if (!mIsHeader)
{
// Perform an expand/collapse
// Iterate up the chain to the row and then to the item.
nsCOMPtr<nsIContent> treeItemContent;
nsCOMPtr<nsIContent> treeRowContent;
mContent->GetParent(*getter_AddRefs(treeRowContent));
treeRowContent->GetParent(*getter_AddRefs(treeItemContent));
nsCOMPtr<nsIDOMElement> treeItem( do_QueryInterface(treeItemContent) );
NS_ASSERTION(treeItem, "not a DOM element");
if (! treeItem)
return;
// Take the tree item content and toggle the value of its open attribute.
nsAutoString attrValue;
nsresult result = treeItem->GetAttribute("open", attrValue);
attrValue.ToLowerCase();
PRBool isExpanded = (attrValue=="true");
if (isExpanded) {
// We're expanding and need to add frames to the flow.
treeItem->RemoveAttribute("open");
}
}
}
nsresult
nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
nsGUIEvent* aEvent,
nsEventStatus& aEventStatus)
{
ToggleOpenClose();
return NS_OK;
}

4
layout/xul/base/src/nsTreeCellFrame.h
View File

@ -52,6 +52,10 @@ public:
void SetAllowEvents(PRBool allowEvents) { mAllowEvents = allowEvents; };
void ToggleOpenClose();
void Open();
void Close();
protected:
nsTreeCellFrame();
virtual ~nsTreeCellFrame();

16
layout/xul/base/src/nsTreeFrame.cpp
View File

@ -142,7 +142,10 @@ nsTreeFrame::HandleEvent(nsIPresContext& aPresContext,
nsKeyEvent* keyEvent = (nsKeyEvent*)aEvent;
PRUint32 keyCode = keyEvent->keyCode;
if (keyCode == NS_VK_UP ||
keyCode == NS_VK_DOWN) {
keyCode == NS_VK_DOWN ||
keyCode == NS_VK_LEFT ||
keyCode == NS_VK_RIGHT ||
keyCode == NS_VK_ENTER) {
// Get our treechildren child frame.
nsTreeRowGroupFrame* treeRowGroup = nsnull;
@ -204,8 +207,15 @@ nsTreeFrame::HandleEvent(nsIPresContext& aPresContext,
if (!cellFrame)
return NS_OK; // No cell. Whatever. Bail.
// We got it! Perform the selection.
SetSelection(aPresContext, cellFrame);
// We got it! Perform the selection on an up/down.
if (keyCode == NS_VK_UP || keyCode == NS_VK_DOWN)
SetSelection(aPresContext, cellFrame);
else if (keyCode == NS_VK_ENTER || keyCode == NS_VK_RETURN)
cellFrame->ToggleOpenClose();
else if (keyCode == NS_VK_LEFT)
cellFrame->Close();
else if (keyCode == NS_VK_RIGHT)
cellFrame->Open();
}
}
return NS_OK;

6
layout/xul/base/src/nsTreeRowGroupFrame.cpp
View File

@ -650,15 +650,15 @@ nsTreeRowGroupFrame::ReflowAfterRowLayout(nsIPresContext& aPresContext,
mScrollbar = nsnull;
}
}
ComputeVisibleRowCount(mRowCount, mContent); // XXX This sucks! Needs to be cheap!
if (mShouldHaveScrollbar && (mRowGroupHeight != NS_UNCONSTRAINEDSIZE) &&
mIsFull) {
// Ensure the scrollbar has been created.
if (!mScrollbar)
CreateScrollbar(aPresContext);
ComputeVisibleRowCount(mRowCount, mContent); // XXX This sucks! Needs to be cheap!
// Set the maxpos of the scrollbar.
nsCOMPtr<nsIContent> scrollbarContent;
mScrollbar->GetContent(getter_AddRefs(scrollbarContent));