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Changing selection in the tree.

This commit is contained in:
hyatt%netscape.com 1999-02-23 02:39:44 +00:00
Родитель 8ef606dbd7
Коммит d6fb7c48ab
1 изменённых файлов: 58 добавлений и 52 удалений
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110
layout/xul/base/src/nsTreeCellFrame.cpp
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@ -163,10 +163,10 @@ nsTreeCellFrame::HandleEvent(nsIPresContext& aPresContext,
if(nsEventStatus_eConsumeNoDefault != aEventStatus) {
aEventStatus = nsEventStatus_eConsumeDoDefault;
if (aEvent->message == NS_MOUSE_LEFT_BUTTON_DOWN)
HandleMouseDownEvent(aPresContext, aEvent, aEventStatus);
else if (aEvent->message == NS_MOUSE_LEFT_DOUBLECLICK)
HandleDoubleClickEvent(aPresContext, aEvent, aEventStatus);
if (aEvent->message == NS_MOUSE_LEFT_BUTTON_DOWN)
HandleMouseDownEvent(aPresContext, aEvent, aEventStatus);
else if (aEvent->message == NS_MOUSE_LEFT_DOUBLECLICK)
HandleDoubleClickEvent(aPresContext, aEvent, aEventStatus);
}
return NS_OK;
@ -184,11 +184,11 @@ nsTreeCellFrame::HandleMouseDownEvent(nsIPresContext& aPresContext,
else
{
// Perform a selection
if (((nsMouseEvent *)aEvent)->isShift)
mTreeFrame->RangedSelection(aPresContext, this); // Applying a ranged selection.
else if (((nsMouseEvent *)aEvent)->isControl)
mTreeFrame->ToggleSelection(aPresContext, this); // Applying a toggle selection.
else mTreeFrame->SetSelection(aPresContext, this); // Doing a single selection only.
if (((nsMouseEvent *)aEvent)->isShift)
mTreeFrame->RangedSelection(aPresContext, this); // Applying a ranged selection.
else if (((nsMouseEvent *)aEvent)->isControl)
mTreeFrame->ToggleSelection(aPresContext, this); // Applying a toggle selection.
else mTreeFrame->SetSelection(aPresContext, this); // Doing a single selection only.
}
return NS_OK;
}
@ -201,53 +201,52 @@ nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
if (!mIsHeader)
{
// Perform an expand/collapse
// Iterate up the chain to the row and then to the item.
nsCOMPtr<nsIContent> pTreeItemContent;
mContent->GetParent(*getter_AddRefs(pTreeItemContent));
// Take the tree item content and toggle the value of its open attribute.
nsString attrValue;
// Iterate up the chain to the row and then to the item.
nsCOMPtr<nsIContent> pTreeItemContent;
mContent->GetParent(*getter_AddRefs(pTreeItemContent));
// Take the tree item content and toggle the value of its open attribute.
nsString attrValue;
nsCOMPtr<nsIAtom> kOpenAtom ( dont_AddRef(NS_NewAtom("open")) );
nsresult result = pTreeItemContent->GetAttribute(nsXULAtoms::nameSpaceID, kOpenAtom, attrValue);
attrValue.ToLowerCase();
PRBool isExpanded = (result == NS_CONTENT_ATTR_NO_VALUE ||
(result == NS_CONTENT_ATTR_HAS_VALUE && attrValue=="true"));
if (isExpanded)
{
// We're collapsing and need to remove frames from the flow.
pTreeItemContent->UnsetAttribute(nsXULAtoms::nameSpaceID, kOpenAtom, PR_FALSE);
}
else
{
// We're expanding and need to add frames to the flow.
pTreeItemContent->SetAttribute(nsXULAtoms::nameSpaceID, kOpenAtom, "true", PR_FALSE);
}
{
// We're collapsing and need to remove frames from the flow.
pTreeItemContent->UnsetAttribute(nsXULAtoms::nameSpaceID, kOpenAtom, PR_FALSE);
}
else
{
// We're expanding and need to add frames to the flow.
pTreeItemContent->SetAttribute(nsXULAtoms::nameSpaceID, kOpenAtom, "true", PR_FALSE);
}
// Ok, try out the hack of doing frame reconstruction
nsCOMPtr<nsIPresShell> pShell;
aPresContext.GetShell(getter_AddRefs(pShell));
nsCOMPtr<nsIStyleSet> pStyleSet;
pShell->GetStyleSet(getter_AddRefs(pStyleSet));
nsCOMPtr<nsIDocument> pDocument;
pShell->GetDocument(getter_AddRefs(pDocument));
nsCOMPtr<nsIContent> pRoot ( dont_AddRef(pDocument->GetRootContent()) );
if (pRoot) {
nsIFrame* docElementFrame;
nsIFrame* parentFrame;
// Ok, try out the hack of doing frame reconstruction
nsCOMPtr<nsIPresShell> pShell;
aPresContext.GetShell(getter_AddRefs(pShell));
nsCOMPtr<nsIStyleSet> pStyleSet;
pShell->GetStyleSet(getter_AddRefs(pStyleSet));
nsCOMPtr<nsIDocument> pDocument;
pShell->GetDocument(getter_AddRefs(pDocument));
nsCOMPtr<nsIContent> pRoot ( dont_AddRef(pDocument->GetRootContent()) );
if (pRoot) {
nsIFrame* docElementFrame;
nsIFrame* parentFrame;
// Get the frame that corresponds to the document element
pShell->GetPrimaryFrameFor(pRoot, &docElementFrame);
if (nsnull != docElementFrame) {
docElementFrame->GetParent(&parentFrame);
// Get the frame that corresponds to the document element
pShell->GetPrimaryFrameFor(pRoot, &docElementFrame);
if (nsnull != docElementFrame) {
docElementFrame->GetParent(&parentFrame);
pShell->EnterReflowLock();
pStyleSet->ReconstructFrames(&aPresContext, pRoot,
parentFrame, docElementFrame);
pShell->ExitReflowLock();
}
pShell->EnterReflowLock();
pStyleSet->ReconstructFrames(&aPresContext, pRoot,
parentFrame, docElementFrame);
pShell->ExitReflowLock();
}
}
}
return NS_OK;
}
@ -256,17 +255,24 @@ nsTreeCellFrame::HandleDoubleClickEvent(nsIPresContext& aPresContext,
void
nsTreeCellFrame::Select(nsIPresContext& aPresContext, PRBool isSelected, PRBool notifyForReflow)
{
nsCOMPtr<nsIAtom> kSelectedAtom ( dont_AddRef(NS_NewAtom("selected")) );
if (isSelected)
nsCOMPtr<nsIAtom> kSelectedCellAtom(dont_AddRef(NS_NewAtom("selectedcell")));
nsCOMPtr<nsIAtom> kSelectedAtom(dont_AddRef(NS_NewAtom("selected")));
nsIContent* pParentContent;
mContent->GetParent(pParentContent);
if (isSelected)
{
// We're selecting the node.
mContent->SetAttribute(nsXULAtoms::nameSpaceID, kSelectedAtom, "true", notifyForReflow);
mContent->SetAttribute(nsXULAtoms::nameSpaceID, kSelectedCellAtom, "true", notifyForReflow);
pParentContent->SetAttribute(nsXULAtoms::nameSpaceID, kSelectedAtom, "true", notifyForReflow);
}
else
{
// We're unselecting the node.
mContent->UnsetAttribute(nsXULAtoms::nameSpaceID, kSelectedAtom, notifyForReflow);
// We're deselecting the node.
mContent->UnsetAttribute(nsXULAtoms::nameSpaceID, kSelectedCellAtom, notifyForReflow);
pParentContent->UnsetAttribute(nsXULAtoms::nameSpaceID, kSelectedAtom, notifyForReflow);
}
NS_IF_RELEASE(pParentContent);
}