forked from mirrors/gecko-dev
51758cfc9b
Same rg + sed shenanigans as the first patch. There were two that could fail, both due to OOM: * HTMLInputElement::AfterSetAttr: If we fail (only in the type=range case) we end up with an old value without it being clamped by min/max/step. * HTMLBodyElement::AfterSetAttr: If we fail we won't peek up the DocShell's frame margins and styling could be incorrect. That seems better than having to deal with broken states after we've already set the attribute. Depends on D176069 Differential Revision: https://phabricator.services.mozilla.com/D176070
104 lines
4.2 KiB
C++
104 lines
4.2 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 "nsCOMPtr.h"
|
|
#include "mozilla/dom/Event.h"
|
|
#include "mozilla/dom/XULTooltipElement.h"
|
|
#include "mozilla/dom/NodeInfo.h"
|
|
#include "mozilla/EventDispatcher.h"
|
|
#include "nsContentCreatorFunctions.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsCTooltipTextProvider.h"
|
|
#include "nsITooltipTextProvider.h"
|
|
#include "nsServiceManagerUtils.h"
|
|
#include "nsThreadUtils.h"
|
|
|
|
namespace mozilla::dom {
|
|
|
|
nsXULElement* NS_NewXULTooltipElement(
|
|
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo) {
|
|
RefPtr<mozilla::dom::NodeInfo> nodeInfo(aNodeInfo);
|
|
auto* nim = nodeInfo->NodeInfoManager();
|
|
RefPtr<XULTooltipElement> tooltip =
|
|
new (nim) XULTooltipElement(nodeInfo.forget());
|
|
NS_ENSURE_SUCCESS(tooltip->Init(), nullptr);
|
|
return tooltip;
|
|
}
|
|
|
|
nsresult XULTooltipElement::Init() {
|
|
// Create the default child label node that will contain the text of the
|
|
// tooltip.
|
|
RefPtr<mozilla::dom::NodeInfo> nodeInfo;
|
|
nodeInfo = mNodeInfo->NodeInfoManager()->GetNodeInfo(
|
|
nsGkAtoms::description, nullptr, kNameSpaceID_XUL, nsINode::ELEMENT_NODE);
|
|
nsCOMPtr<Element> description;
|
|
nsresult rv = NS_NewXULElement(getter_AddRefs(description), nodeInfo.forget(),
|
|
dom::NOT_FROM_PARSER);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
description->SetAttr(kNameSpaceID_None, nsGkAtoms::_class,
|
|
u"tooltip-label"_ns, false);
|
|
ErrorResult error;
|
|
AppendChild(*description, error);
|
|
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
void XULTooltipElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
|
|
const nsAttrValue* aValue,
|
|
const nsAttrValue* aOldValue,
|
|
nsIPrincipal* aSubjectPrincipal,
|
|
bool aNotify) {
|
|
if (aNameSpaceID == kNameSpaceID_None && aName == nsGkAtoms::label) {
|
|
// When the label attribute of this node changes propagate the text down
|
|
// into child description element.
|
|
nsCOMPtr<nsIContent> description = GetFirstChild();
|
|
if (description && description->IsXULElement(nsGkAtoms::description)) {
|
|
nsAutoString value;
|
|
if (aValue) {
|
|
aValue->ToString(value);
|
|
}
|
|
nsContentUtils::AddScriptRunner(NS_NewRunnableFunction(
|
|
"XULTooltipElement::AfterSetAttr", [description, value]() {
|
|
Element* descriptionElement = description->AsElement();
|
|
descriptionElement->SetTextContent(value, IgnoreErrors());
|
|
}));
|
|
}
|
|
}
|
|
return nsXULElement::AfterSetAttr(aNameSpaceID, aName, aValue, aOldValue,
|
|
aSubjectPrincipal, aNotify);
|
|
}
|
|
|
|
nsresult XULTooltipElement::PostHandleEvent(EventChainPostVisitor& aVisitor) {
|
|
if (aVisitor.mEvent->mMessage == eXULPopupShowing &&
|
|
aVisitor.mEvent->IsTrusted() && !aVisitor.mEvent->DefaultPrevented() &&
|
|
AttrValueIs(kNameSpaceID_None, nsGkAtoms::page, nsGkAtoms::_true,
|
|
eCaseMatters) &&
|
|
!AttrValueIs(kNameSpaceID_None, nsGkAtoms::titletip, nsGkAtoms::_true,
|
|
eCaseMatters)) {
|
|
// When the tooltip node has the "page" attribute set to "true" the
|
|
// tooltip text provider is used to find the tooltip text from page where
|
|
// mouse is hovering over.
|
|
nsCOMPtr<nsITooltipTextProvider> textProvider =
|
|
do_GetService(NS_DEFAULTTOOLTIPTEXTPROVIDER_CONTRACTID);
|
|
nsString text;
|
|
nsString direction;
|
|
bool shouldChange = false;
|
|
if (textProvider) {
|
|
textProvider->GetNodeText(GetTriggerNode(), getter_Copies(text),
|
|
getter_Copies(direction), &shouldChange);
|
|
}
|
|
if (shouldChange) {
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::label, text, true);
|
|
SetAttr(kNameSpaceID_None, nsGkAtoms::direction, direction, true);
|
|
} else {
|
|
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
aVisitor.mEvent->PreventDefault();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla::dom
|