nsresult
nsXULTooltipListener::FindTooltip(nsIContent* aTarget, nsIContent** aTooltip)
{
if (!aTarget)
return NS_ERROR_NULL_POINTER;
// before we go on, make sure that target node still has a window
nsCOMPtr<nsIDocument> document = aTarget->GetDocument();
if (!document) {
NS_WARNING("Unable to retrieve the tooltip node document.");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsPIDOMWindow> window = document->GetWindow();
if (!window) {
return NS_OK;
}
PRBool closed;
window->GetClosed(&closed);
if (closed) {
return NS_OK;
}
nsAutoString tooltipText;
aTarget->GetAttr(kNameSpaceID_None, nsGkAtoms::tooltiptext, tooltipText);
if (!tooltipText.IsEmpty()) {
// specifying tooltiptext means we will always use the default tooltip
nsIRootBox* rootBox = nsIRootBox::GetRootBox(document->GetPrimaryShell());
NS_ENSURE_STATE(rootBox);
*aTooltip = rootBox->GetDefaultTooltip();
if (*aTooltip) {
NS_ADDREF(*aTooltip);
(*aTooltip)->SetAttr(kNameSpaceID_None, nsGkAtoms::label, tooltipText, PR_TRUE);
}
return NS_OK;
}
nsAutoString tooltipId;
aTarget->GetAttr(kNameSpaceID_None, nsGkAtoms::tooltip, tooltipId);
// if tooltip == _child, look for first <tooltip> child
if (tooltipId.EqualsLiteral("_child")) {
GetImmediateChild(aTarget, nsGkAtoms::tooltip, aTooltip);
return NS_OK;
}
if (!tooltipId.IsEmpty()) {
// tooltip must be an id, use getElementById to find it
nsCOMPtr<nsIDOMDocument> domDocument =
do_QueryInterface(document);
if (!domDocument) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDOMElement> tooltipEl;
domDocument->GetElementById(tooltipId, getter_AddRefs(tooltipEl));
if (tooltipEl) {
#ifdef MOZ_XUL
mNeedTitletip = PR_FALSE;
#endif
CallQueryInterface(tooltipEl, aTooltip);
return NS_OK;
}
}
#ifdef MOZ_XUL
// titletips should just use the default tooltip
if (mIsSourceTree && mNeedTitletip) {
nsIRootBox* rootBox = nsIRootBox::GetRootBox(document->GetPrimaryShell());
NS_ENSURE_STATE(rootBox);
NS_IF_ADDREF(*aTooltip = rootBox->GetDefaultTooltip());
}
#endif
return NS_OK;
}
//
// LaunchPopup
//
// Given the element on which the event was triggered and the mouse locations in
// Client and widget coordinates, popup a new window showing the appropriate
// content.
//
// aTargetContent is the target of the mouse event aEvent that triggered the
// popup. mElement is the element that the popup menu is attached to.
// aTargetContent may be equal to mElement or it may be a descendant.
//
// This looks for an attribute on |mElement| of the appropriate popup type
// (popup, context) and uses that attribute's value as an ID for
// the popup content in the document.
//
nsresult
nsXULPopupListener::LaunchPopup(nsIDOMEvent* aEvent, nsIContent* aTargetContent)
{
nsresult rv = NS_OK;
nsAutoString type(NS_LITERAL_STRING("popup"));
if (mIsContext)
type.AssignLiteral("context");
nsAutoString identifier;
mElement->GetAttribute(type, identifier);
if (identifier.IsEmpty()) {
if (type.EqualsLiteral("popup"))
mElement->GetAttribute(NS_LITERAL_STRING("menu"), identifier);
else if (type.EqualsLiteral("context"))
mElement->GetAttribute(NS_LITERAL_STRING("contextmenu"), identifier);
if (identifier.IsEmpty())
return rv;
}
// Try to find the popup content and the document.
nsCOMPtr<nsIContent> content = do_QueryInterface(mElement);
nsCOMPtr<nsIDocument> document = content->GetDocument();
// Turn the document into a DOM document so we can use getElementById
nsCOMPtr<nsIDOMDocument> domDocument = do_QueryInterface(document);
if (!domDocument) {
NS_ERROR("Popup attached to an element that isn't in XUL!");
return NS_ERROR_FAILURE;
}
// Handle the _child case for popups and context menus
nsCOMPtr<nsIDOMElement> popupElement;
if (identifier.EqualsLiteral("_child")) {
nsCOMPtr<nsIContent> popup;
GetImmediateChild(content, nsGkAtoms::menupopup, getter_AddRefs(popup));
if (popup)
popupElement = do_QueryInterface(popup);
else {
nsCOMPtr<nsIDOMDocumentXBL> nsDoc(do_QueryInterface(domDocument));
nsCOMPtr<nsIDOMNodeList> list;
nsDoc->GetAnonymousNodes(mElement, getter_AddRefs(list));
if (list) {
PRUint32 ctr,listLength;
nsCOMPtr<nsIDOMNode> node;
list->GetLength(&listLength);
for (ctr = 0; ctr < listLength; ctr++) {
list->Item(ctr, getter_AddRefs(node));
nsCOMPtr<nsIContent> childContent(do_QueryInterface(node));
if (childContent->NodeInfo()->Equals(nsGkAtoms::menupopup,
kNameSpaceID_XUL)) {
popupElement = do_QueryInterface(childContent);
break;
}
}
}
}
}
else if (NS_FAILED(rv = domDocument->GetElementById(identifier,
getter_AddRefs(popupElement)))) {
// Use getElementById to obtain the popup content and gracefully fail if
// we didn't find any popup content in the document.
NS_ERROR("GetElementById had some kind of spasm.");
return rv;
}
// return if no popup was found or the popup is the element itself.
if ( !popupElement || popupElement == mElement)
return NS_OK;
// Submenus can't be used as context menus or popups, bug 288763.
// Similar code also in nsXULTooltipListener::GetTooltipFor.
nsCOMPtr<nsIContent> popup = do_QueryInterface(popupElement);
nsIContent* parent = popup->GetParent();
if (parent) {
nsIFrame* frame = parent->GetPrimaryFrame();
if (frame && frame->GetType() == nsGkAtoms::menuFrame)
return NS_OK;
}
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
if (!pm)
return NS_OK;
// For left-clicks, if the popup has an position attribute, or both the
// popupanchor and popupalign attributes are used, anchor the popup to the
// element, otherwise just open it at the screen position where the mouse
// was clicked. Context menus always open at the mouse position.
mPopupContent = popup;
if (!mIsContext &&
(mPopupContent->HasAttr(kNameSpaceID_None, nsGkAtoms::position) ||
(mPopupContent->HasAttr(kNameSpaceID_None, nsGkAtoms::popupanchor) &&
mPopupContent->HasAttr(kNameSpaceID_None, nsGkAtoms::popupalign)))) {
pm->ShowPopup(mPopupContent, content, EmptyString(), 0, 0,
PR_FALSE, PR_TRUE, PR_FALSE, aEvent);
}
else {
PRInt32 xPos = 0, yPos = 0;
nsCOMPtr<nsIDOMMouseEvent> mouseEvent = do_QueryInterface(aEvent);
mouseEvent->GetScreenX(&xPos);
mouseEvent->GetScreenY(&yPos);
pm->ShowPopupAtScreen(mPopupContent, xPos, yPos, mIsContext, aEvent);
}
return NS_OK;
}