NS_IMETHODIMP
nsHTMLEditorEventListener::MouseDown(nsIDOMEvent* aMouseEvent)
{
NS_ENSURE_TRUE(mEditor, NS_ERROR_NOT_AVAILABLE);
nsCOMPtr<nsIDOMMouseEvent> mouseEvent ( do_QueryInterface(aMouseEvent) );
if (!mouseEvent) {
//non-ui event passed in. bad things.
return NS_OK;
}
nsHTMLEditor* htmlEditor = GetHTMLEditor();
// Detect only "context menu" click
//XXX This should be easier to do!
// But eDOMEvents_contextmenu and NS_CONTEXTMENU is not exposed in any event interface :-(
PRUint16 buttonNumber;
nsresult res = mouseEvent->GetButton(&buttonNumber);
NS_ENSURE_SUCCESS(res, res);
PRBool isContextClick = buttonNumber == 2;
PRInt32 clickCount;
res = mouseEvent->GetDetail(&clickCount);
NS_ENSURE_SUCCESS(res, res);
nsCOMPtr<nsIDOMEventTarget> target;
nsCOMPtr<nsIDOMNSEvent> internalEvent = do_QueryInterface(aMouseEvent);
res = internalEvent->GetExplicitOriginalTarget(getter_AddRefs(target));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(target, NS_ERROR_NULL_POINTER);
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(target);
if (isContextClick || (buttonNumber == 0 && clickCount == 2))
{
nsCOMPtr<nsISelection> selection;
mEditor->GetSelection(getter_AddRefs(selection));
NS_ENSURE_TRUE(selection, NS_OK);
// Get location of mouse within target node
nsCOMPtr<nsIDOMNSUIEvent> uiEvent = do_QueryInterface(aMouseEvent);
NS_ENSURE_TRUE(uiEvent, NS_ERROR_FAILURE);
nsCOMPtr<nsIDOMNode> parent;
PRInt32 offset = 0;
res = uiEvent->GetRangeParent(getter_AddRefs(parent));
NS_ENSURE_SUCCESS(res, res);
NS_ENSURE_TRUE(parent, NS_ERROR_FAILURE);
res = uiEvent->GetRangeOffset(&offset);
NS_ENSURE_SUCCESS(res, res);
// Detect if mouse point is within current selection for context click
PRBool nodeIsInSelection = PR_FALSE;
if (isContextClick)
{
PRBool isCollapsed;
selection->GetIsCollapsed(&isCollapsed);
if (!isCollapsed)
{
PRInt32 rangeCount;
res = selection->GetRangeCount(&rangeCount);
NS_ENSURE_SUCCESS(res, res);
for (PRInt32 i = 0; i < rangeCount; i++)
{
nsCOMPtr<nsIDOMRange> range;
res = selection->GetRangeAt(i, getter_AddRefs(range));
if (NS_FAILED(res) || !range)
continue;//don't bail yet, iterate through them all
nsCOMPtr<nsIDOMNSRange> nsrange(do_QueryInterface(range));
if (NS_FAILED(res) || !nsrange)
continue;//don't bail yet, iterate through them all
res = nsrange->IsPointInRange(parent, offset, &nodeIsInSelection);
// Done when we find a range that we are in
if (nodeIsInSelection)
break;
}
}
}
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(target);
if (node && !nodeIsInSelection)
{
if (!element)
{
if (isContextClick)
{
// Set the selection to the point under the mouse cursor:
selection->Collapse(parent, offset);
}
else
{
// Get enclosing link if in text so we can select the link
nsCOMPtr<nsIDOMElement> linkElement;
res = htmlEditor->GetElementOrParentByTagName(NS_LITERAL_STRING("href"), node, getter_AddRefs(linkElement));
NS_ENSURE_SUCCESS(res, res);
if (linkElement)
element = linkElement;
}
}
// Select entire element clicked on if NOT within an existing selection
// and not the entire body, or table-related elements
if (element)
{
nsCOMPtr<nsIDOMNode> selectAllNode =
htmlEditor->FindUserSelectAllNode(element);
if (selectAllNode)
{
nsCOMPtr<nsIDOMElement> newElement = do_QueryInterface(selectAllNode);
if (newElement)
{
node = selectAllNode;
element = newElement;
}
}
if (isContextClick && !nsHTMLEditUtils::IsImage(node))
{
selection->Collapse(parent, offset);
}
else
{
htmlEditor->SelectElement(element);
}
}
}
// HACK !!! Context click places the caret but the context menu consumes
// the event; so we need to check resizing state ourselves
htmlEditor->CheckSelectionStateForAnonymousButtons(selection);
// Prevent bubbling if we changed selection or
// for all context clicks
if (element || isContextClick)
{
#ifndef XP_OS2
mouseEvent->PreventDefault();
#endif
return NS_OK;
}
}
else if (!isContextClick && buttonNumber == 0 && clickCount == 1)
{
// if the target element is an image, we have to display resizers
PRInt32 clientX, clientY;
mouseEvent->GetClientX(&clientX);
mouseEvent->GetClientY(&clientY);
htmlEditor->MouseDown(clientX, clientY, element, aMouseEvent);
}
return nsEditorEventListener::MouseDown(aMouseEvent);
}
nsresult
nsHTMLEditorMouseListener::MouseDown(nsIDOMEvent* aMouseEvent)
{
nsCOMPtr<nsIDOMMouseEvent> mouseEvent ( do_QueryInterface(aMouseEvent) );
if (!mouseEvent) {
//non-ui event passed in. bad things.
return NS_OK;
}
// Don't do anything special if not an HTML editor
nsCOMPtr<nsIHTMLEditor> htmlEditor = do_QueryInterface(mEditor);
if (htmlEditor)
{
// Detect only "context menu" click
//XXX This should be easier to do!
// But eDOMEvents_contextmenu and NS_CONTEXTMENU is not exposed in any event interface :-(
PRUint16 buttonNumber;
nsresult res = mouseEvent->GetButton(&buttonNumber);
if (NS_FAILED(res)) return res;
PRBool isContextClick;
#if defined(XP_MAC) || defined(XP_MACOSX)
// Ctrl+Click for context menu
res = mouseEvent->GetCtrlKey(&isContextClick);
if (NS_FAILED(res)) return res;
#else
// Right mouse button for Windows, UNIX
isContextClick = buttonNumber == 2;
#endif
PRInt32 clickCount;
res = mouseEvent->GetDetail(&clickCount);
if (NS_FAILED(res)) return res;
nsCOMPtr<nsIDOMEventTarget> target;
nsCOMPtr<nsIDOMNSEvent> internalEvent = do_QueryInterface(aMouseEvent);
res = internalEvent->GetExplicitOriginalTarget(getter_AddRefs(target));
if (NS_FAILED(res)) return res;
if (!target) return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(target);
if (isContextClick || (buttonNumber == 0 && clickCount == 2))
{
nsCOMPtr<nsISelection> selection;
mEditor->GetSelection(getter_AddRefs(selection));
if (!selection) return NS_OK;
// Get location of mouse within target node
nsCOMPtr<nsIDOMNSUIEvent> uiEvent = do_QueryInterface(aMouseEvent);
if (!uiEvent) return NS_ERROR_FAILURE;
nsCOMPtr<nsIDOMNode> parent;
PRInt32 offset = 0;
res = uiEvent->GetRangeParent(getter_AddRefs(parent));
if (NS_FAILED(res)) return res;
if (!parent) return NS_ERROR_FAILURE;
res = uiEvent->GetRangeOffset(&offset);
if (NS_FAILED(res)) return res;
// Detect if mouse point is within current selection for context click
PRBool nodeIsInSelection = PR_FALSE;
if (isContextClick)
{
PRBool isCollapsed;
selection->GetIsCollapsed(&isCollapsed);
if (!isCollapsed)
{
PRInt32 rangeCount;
res = selection->GetRangeCount(&rangeCount);
if (NS_FAILED(res)) return res;
for (PRInt32 i = 0; i < rangeCount; i++)
{
nsCOMPtr<nsIDOMRange> range;
res = selection->GetRangeAt(i, getter_AddRefs(range));
if (NS_FAILED(res) || !range)
continue;//dont bail yet, iterate through them all
nsCOMPtr<nsIDOMNSRange> nsrange(do_QueryInterface(range));
if (NS_FAILED(res) || !nsrange)
continue;//dont bail yet, iterate through them all
res = nsrange->IsPointInRange(parent, offset, &nodeIsInSelection);
// Done when we find a range that we are in
if (nodeIsInSelection)
break;
}
}
}
nsCOMPtr<nsIDOMNode> node = do_QueryInterface(target);
if (node && !nodeIsInSelection)
{
if (!element)
{
if (isContextClick)
{
// Set the selection to the point under the mouse cursor:
selection->Collapse(parent, offset);
}
else
{
// Get enclosing link if in text so we can select the link
nsCOMPtr<nsIDOMElement> linkElement;
res = htmlEditor->GetElementOrParentByTagName(NS_LITERAL_STRING("href"), node, getter_AddRefs(linkElement));
if (NS_FAILED(res)) return res;
if (linkElement)
element = linkElement;
}
}
// Select entire element clicked on if NOT within an existing selection
// and not the entire body, or table-related elements
if (element)
{
nsCOMPtr<nsIDOMNode> selectAllNode = mHTMLEditor->FindUserSelectAllNode(element);
if (selectAllNode)
{
nsCOMPtr<nsIDOMElement> newElement = do_QueryInterface(selectAllNode);
if (newElement)
{
node = selectAllNode;
element = newElement;
}
}
// XXX: should we call nsHTMLEditUtils::IsTableElement here?
// that also checks for thead, tbody, tfoot
if (nsTextEditUtils::IsBody(node) ||
nsHTMLEditUtils::IsTableCellOrCaption(node) ||
nsHTMLEditUtils::IsTableRow(node) ||
nsHTMLEditUtils::IsTable(node))
{
// This will place caret just inside table cell or at start of body
selection->Collapse(parent, offset);
}
else
{
htmlEditor->SelectElement(element);
}
}
}
// HACK !!! Context click places the caret but the context menu consumes
// the event; so we need to check resizing state ourselves
htmlEditor->CheckSelectionStateForAnonymousButtons(selection);
// Prevent bubbling if we changed selection or
// for all context clicks
if (element || isContextClick)
{
#ifndef XP_OS2
mouseEvent->PreventDefault();
#endif
return NS_OK;
}
}
else if (!isContextClick && buttonNumber == 0 && clickCount == 1)
{
// if the target element is an image, we have to display resizers
nsCOMPtr<nsIHTMLObjectResizer> objectResizer = do_QueryInterface(htmlEditor);
PRInt32 clientX, clientY;
mouseEvent->GetClientX(&clientX);
mouseEvent->GetClientY(&clientY);
objectResizer->MouseDown(clientX, clientY, element);
}
}
return nsTextEditorMouseListener::MouseDown(aMouseEvent);
}
