gecko-dev/dom/xul/XULTextElement.cpp
Emilio Cobos Álvarez 2a31521cee Bug 1801157 - Fix dynamic value change of label/description with accesskey. r=smaug
While at it move GetAttributeChangeHint to relevant implementations.

Differential Revision: https://phabricator.services.mozilla.com/D162335
2022-11-17 21:51:40 +00:00

50 lines
1.9 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "mozilla/dom/Element.h"
#include "mozilla/dom/ToJSValue.h"
#include "nsCOMPtr.h"
#include "nsChangeHint.h"
#include "nsIContent.h"
#include "nsPresContext.h"
#include "nsIScrollableFrame.h"
#include "mozilla/dom/MutationEventBinding.h"
#include "mozilla/dom/XULTextElement.h"
#include "mozilla/dom/XULTextElementBinding.h"
namespace mozilla::dom {
nsChangeHint XULTextElement::GetAttributeChangeHint(const nsAtom* aAttribute,
int32_t aModType) const {
const bool reframe = [&] {
if (aAttribute == nsGkAtoms::value) {
// If we have an accesskey we need to recompute our -moz-label-content.
// Otherwise this is handled by either the attribute text node, or
// nsTextBoxFrame for crop="center".
return aModType == MutationEvent_Binding::ADDITION ||
aModType == MutationEvent_Binding::REMOVAL ||
HasAttr(nsGkAtoms::accesskey);
}
if (aAttribute == nsGkAtoms::crop || aAttribute == nsGkAtoms::accesskey) {
// value attr + crop="center" still uses nsTextBoxFrame. accesskey
// requires reframing as per the above comment.
return HasAttr(nsGkAtoms::value);
}
return false;
}();
if (reframe) {
return nsChangeHint_ReconstructFrame;
}
return nsXULElement::GetAttributeChangeHint(aAttribute, aModType);
}
JSObject* XULTextElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return XULTextElement_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace mozilla::dom