mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
129 lines
4.0 KiB
C++
129 lines
4.0 KiB
C++
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/**
|
|
* A fake content node class so that the image frame for
|
|
* content: url(foo);
|
|
* in CSS can have an nsIImageLoadingContent but use an
|
|
* imgIRequest that's already been loaded from the style system.
|
|
*/
|
|
|
|
#include "nsContentCreatorFunctions.h"
|
|
#include "nsXMLElement.h"
|
|
#include "nsImageLoadingContent.h"
|
|
#include "imgIRequest.h"
|
|
#include "mozilla/BasicEvents.h"
|
|
#include "mozilla/EventDispatcher.h"
|
|
#include "mozilla/EventStates.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
class nsGenConImageContent final : public nsXMLElement,
|
|
public nsImageLoadingContent
|
|
{
|
|
public:
|
|
explicit nsGenConImageContent(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
|
|
: nsXMLElement(aNodeInfo)
|
|
{
|
|
// nsImageLoadingContent starts out broken, so we start out
|
|
// suppressed to match it.
|
|
AddStatesSilently(NS_EVENT_STATE_SUPPRESSED);
|
|
}
|
|
|
|
nsresult Init(imgRequestProxy* aImageRequest)
|
|
{
|
|
// No need to notify, since we have no frame.
|
|
return UseAsPrimaryRequest(aImageRequest, false, eImageLoadType_Normal);
|
|
}
|
|
|
|
// nsIContent overrides
|
|
virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
|
|
nsIContent* aBindingParent,
|
|
bool aCompileEventHandlers) override;
|
|
virtual void UnbindFromTree(bool aDeep, bool aNullParent) override;
|
|
virtual EventStates IntrinsicState() const override;
|
|
|
|
virtual nsresult PreHandleEvent(EventChainPreVisitor& aVisitor) override
|
|
{
|
|
MOZ_ASSERT(IsInNativeAnonymousSubtree());
|
|
if (aVisitor.mEvent->message == NS_LOAD ||
|
|
aVisitor.mEvent->message == NS_LOAD_ERROR) {
|
|
// Don't propagate the events to the parent.
|
|
return NS_OK;
|
|
}
|
|
return nsXMLElement::PreHandleEvent(aVisitor);
|
|
}
|
|
|
|
private:
|
|
virtual ~nsGenConImageContent();
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
};
|
|
|
|
NS_IMPL_ISUPPORTS_INHERITED(nsGenConImageContent,
|
|
nsXMLElement,
|
|
nsIImageLoadingContent,
|
|
imgINotificationObserver,
|
|
imgIOnloadBlocker)
|
|
|
|
nsresult
|
|
NS_NewGenConImageContent(nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
|
|
imgRequestProxy* aImageRequest)
|
|
{
|
|
NS_PRECONDITION(aImageRequest, "Must have request!");
|
|
nsGenConImageContent *it = new nsGenConImageContent(aNodeInfo);
|
|
if (!it)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
NS_ADDREF(*aResult = it);
|
|
nsresult rv = it->Init(aImageRequest);
|
|
if (NS_FAILED(rv))
|
|
NS_RELEASE(*aResult);
|
|
return rv;
|
|
}
|
|
|
|
nsGenConImageContent::~nsGenConImageContent()
|
|
{
|
|
DestroyImageLoadingContent();
|
|
}
|
|
|
|
nsresult
|
|
nsGenConImageContent::BindToTree(nsIDocument* aDocument, nsIContent* aParent,
|
|
nsIContent* aBindingParent,
|
|
bool aCompileEventHandlers)
|
|
{
|
|
nsresult rv;
|
|
rv = nsXMLElement::BindToTree(aDocument, aParent, aBindingParent,
|
|
aCompileEventHandlers);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsImageLoadingContent::BindToTree(aDocument, aParent, aBindingParent,
|
|
aCompileEventHandlers);
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
nsGenConImageContent::UnbindFromTree(bool aDeep, bool aNullParent)
|
|
{
|
|
nsImageLoadingContent::UnbindFromTree(aDeep, aNullParent);
|
|
nsXMLElement::UnbindFromTree(aDeep, aNullParent);
|
|
}
|
|
|
|
EventStates
|
|
nsGenConImageContent::IntrinsicState() const
|
|
{
|
|
EventStates state = nsXMLElement::IntrinsicState();
|
|
|
|
EventStates imageState = nsImageLoadingContent::ImageState();
|
|
if (imageState.HasAtLeastOneOfStates(NS_EVENT_STATE_BROKEN | NS_EVENT_STATE_USERDISABLED)) {
|
|
// We should never be in an error state; if the image fails to load, we
|
|
// just go to the suppressed state.
|
|
imageState |= NS_EVENT_STATE_SUPPRESSED;
|
|
imageState &= ~NS_EVENT_STATE_BROKEN;
|
|
}
|
|
imageState &= ~NS_EVENT_STATE_LOADING;
|
|
return state | imageState;
|
|
}
|