/**
* This is called when we receive any registered events on the control.
* We've only registered for drop, dragover and click events.
*/
NS_IMETHODIMP
nsFileControlFrame::BrowseMouseListener::HandleEvent(nsIDOMEvent* aEvent)
{
NS_ASSERTION(mFrame, "We should have been unregistered");
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("click")) {
if (!ShouldProcessMouseClick(aEvent))
return NS_OK;
nsHTMLInputElement* input =
nsHTMLInputElement::FromContent(mFrame->GetContent());
return input ? input->FireAsyncClickHandler() : NS_OK;
}
bool defaultPrevented = false;
aEvent->GetPreventDefault(&defaultPrevented);
if (defaultPrevented) {
return NS_OK;
}
nsCOMPtr<nsIDOMDragEvent> dragEvent = do_QueryInterface(aEvent);
if (!dragEvent || !IsValidDropData(dragEvent)) {
return NS_OK;
}
if (eventType.EqualsLiteral("dragover")) {
// Prevent default if we can accept this drag data
aEvent->PreventDefault();
return NS_OK;
}
if (eventType.EqualsLiteral("drop")) {
aEvent->StopPropagation();
aEvent->PreventDefault();
nsIContent* content = mFrame->GetContent();
NS_ASSERTION(content, "The frame has no content???");
nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
NS_ASSERTION(inputElement, "No input element for this file upload control frame!");
nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
dragEvent->GetDataTransfer(getter_AddRefs(dataTransfer));
nsCOMPtr<nsIDOMFileList> fileList;
dataTransfer->GetFiles(getter_AddRefs(fileList));
inputElement->SetFiles(fileList, true);
inputElement->FireChangeEventIfNeeded();
}
return NS_OK;
}
/**
* This is called when we receive any registered events on the control.
* We've only registered for drop, dragover and click events, and click events
* already call MouseClick() for us. Here, we handle file drops.
*/
NS_IMETHODIMP
nsFileControlFrame::BrowseMouseListener::HandleEvent(nsIDOMEvent* aEvent)
{
NS_ASSERTION(mFrame, "We should have been unregistered");
nsCOMPtr<nsIDOMNSUIEvent> uiEvent = do_QueryInterface(aEvent);
NS_ENSURE_STATE(uiEvent);
PRBool defaultPrevented = PR_FALSE;
uiEvent->GetPreventDefault(&defaultPrevented);
if (defaultPrevented) {
return NS_OK;
}
nsCOMPtr<nsIDOMDragEvent> dragEvent = do_QueryInterface(aEvent);
if (!dragEvent || !IsValidDropData(dragEvent)) {
return NS_OK;
}
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("dragover")) {
// Prevent default if we can accept this drag data
aEvent->PreventDefault();
return NS_OK;
}
if (eventType.EqualsLiteral("drop")) {
aEvent->StopPropagation();
aEvent->PreventDefault();
nsIContent* content = mFrame->GetContent();
NS_ASSERTION(content, "The frame has no content???");
nsHTMLInputElement* inputElement = nsHTMLInputElement::FromContent(content);
NS_ASSERTION(inputElement, "No input element for this file upload control frame!");
nsCOMPtr<nsIDOMDataTransfer> dataTransfer;
dragEvent->GetDataTransfer(getter_AddRefs(dataTransfer));
nsCOMPtr<nsIDOMFileList> fileList;
dataTransfer->GetFiles(getter_AddRefs(fileList));
PRBool oldState = mFrame->mTextFrame->GetFireChangeEventState();
mFrame->mTextFrame->SetFireChangeEventState(PR_TRUE);
inputElement->SetFiles(fileList, true);
mFrame->mTextFrame->SetFireChangeEventState(oldState);
mFrame->mTextFrame->CheckFireOnChange();
}
return NS_OK;
}