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/* -*- 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 "nsNumberControlFrame.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/EventStates.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/PresShell.h"
#include "HTMLInputElement.h"
#include "nsGkAtoms.h"
#include "nsNameSpaceManager.h"
#include "nsStyleConsts.h"
#include "nsContentUtils.h"
#include "nsContentCreatorFunctions.h"
#include "nsCSSPseudoElements.h"
#ifdef ACCESSIBILITY
# include "mozilla/a11y/AccTypes.h"
#endif
using namespace mozilla;
using namespace mozilla::dom;
nsIFrame* NS_NewNumberControlFrame(PresShell* aPresShell,
ComputedStyle* aStyle) {
return new (aPresShell)
nsNumberControlFrame(aStyle, aPresShell->GetPresContext());
}
NS_IMPL_FRAMEARENA_HELPERS(nsNumberControlFrame)
NS_QUERYFRAME_HEAD(nsNumberControlFrame)
NS_QUERYFRAME_ENTRY(nsNumberControlFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsTextControlFrame)
nsNumberControlFrame::nsNumberControlFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: nsTextControlFrame(aStyle, aPresContext, kClassID) {}
void nsNumberControlFrame::DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) {
aPostDestroyData.AddAnonymousContent(mOuterWrapper.forget());
nsTextControlFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
}
nsresult nsNumberControlFrame::CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) {
// We create an anonymous tree for our input element that is structured as
// follows:
//
// input
// div - outer wrapper with "display:flex" by default
// div - editor root
// div - spin box wrapping up/down arrow buttons
// div - spin up (up arrow button)
// div - spin down (down arrow button)
// div - placeholder
// div - preview div
//
// If you change this, be careful to change the destruction order in
// nsNumberControlFrame::DestroyFrom.
// Create the anonymous outer wrapper:
mOuterWrapper = MakeAnonElement(PseudoStyleType::mozComplexControlWrapper);
// We want to do this now, rather than on the caller, so that the
// AppendChildTo calls below know that they are anonymous already. This is
// important for the NODE_IS_EDITABLE flag handling, for example.
mOuterWrapper->SetIsNativeAnonymousRoot();
aElements.AppendElement(mOuterWrapper);
nsTArray<ContentInfo> nestedContent;
nsTextControlFrame::CreateAnonymousContent(nestedContent);
for (auto& content : nestedContent) {
// The root goes inside the container.
if (content.mContent == mRootNode) {
mOuterWrapper->AppendChildTo(content.mContent, false);
} else {
// The rest (placeholder and preview), directly under us.
aElements.AppendElement(std::move(content));
}
}
if (StyleDisplay()->EffectiveAppearance() == StyleAppearance::Textfield) {
// The author has elected to hide the spinner by setting this
// -moz-appearance. We will reframe if it changes.
return NS_OK;
}
// Create the ::-moz-number-spin-box pseudo-element:
mSpinBox = MakeAnonElement(PseudoStyleType::mozNumberSpinBox, mOuterWrapper);
// Create the ::-moz-number-spin-up pseudo-element:
mSpinUp = MakeAnonElement(PseudoStyleType::mozNumberSpinUp, mSpinBox);
// Create the ::-moz-number-spin-down pseudo-element:
mSpinDown = MakeAnonElement(PseudoStyleType::mozNumberSpinDown, mSpinBox);
return NS_OK;
}
/* static */
nsNumberControlFrame* nsNumberControlFrame::GetNumberControlFrameForTextField(
nsIFrame* aFrame) {
// If aFrame is the anon text field for an <input type=number> then we expect
// the frame of its mContent's grandparent to be that input's frame. We
// have to check for this via the content tree because we don't know whether
// extra frames will be wrapped around any of the elements between aFrame and
// the nsNumberControlFrame that we're looking for (e.g. flex wrappers).
nsIContent* content = aFrame->GetContent();
if (content->IsInNativeAnonymousSubtree() && content->GetParent() &&
content->GetParent()->GetParent()) {
nsIContent* grandparent = content->GetParent()->GetParent();
if (grandparent->IsHTMLElement(nsGkAtoms::input) &&
grandparent->AsElement()->AttrValueIs(
kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::number,
eCaseMatters)) {
return do_QueryFrame(grandparent->GetPrimaryFrame());
}
}
return nullptr;
}
/* static */
nsNumberControlFrame* nsNumberControlFrame::GetNumberControlFrameForSpinButton(
nsIFrame* aFrame) {
// If aFrame is a spin button for an <input type=number> then we expect the
// frame of its mContent's great-grandparent to be that input's frame. We
// have to check for this via the content tree because we don't know whether
// extra frames will be wrapped around any of the elements between aFrame and
// the nsNumberControlFrame that we're looking for (e.g. flex wrappers).
nsIContent* content = aFrame->GetContent();
if (content->IsInNativeAnonymousSubtree() && content->GetParent() &&
content->GetParent()->GetParent() &&
content->GetParent()->GetParent()->GetParent()) {
nsIContent* greatgrandparent =
content->GetParent()->GetParent()->GetParent();
if (greatgrandparent->IsHTMLElement(nsGkAtoms::input) &&
greatgrandparent->AsElement()->AttrValueIs(
kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::number,
eCaseMatters)) {
return do_QueryFrame(greatgrandparent->GetPrimaryFrame());
}
}
return nullptr;
}
int32_t nsNumberControlFrame::GetSpinButtonForPointerEvent(
WidgetGUIEvent* aEvent) const {
MOZ_ASSERT(aEvent->mClass == eMouseEventClass, "Unexpected event type");
if (!mSpinBox) {
// we don't have a spinner
return eSpinButtonNone;
}
if (aEvent->mOriginalTarget == mSpinUp) {
return eSpinButtonUp;
}
if (aEvent->mOriginalTarget == mSpinDown) {
return eSpinButtonDown;
}
if (aEvent->mOriginalTarget == mSpinBox) {
// In the case that the up/down buttons are hidden (display:none) we use
// just the spin box element, spinning up if the pointer is over the top
// half of the element, or down if it's over the bottom half. This is
// important to handle since this is the state things are in for the
// default UA style sheet. See the comment in forms.css for why.
LayoutDeviceIntPoint absPoint = aEvent->mRefPoint;
nsPoint point = nsLayoutUtils::GetEventCoordinatesRelativeTo(
aEvent, absPoint, RelativeTo{mSpinBox->GetPrimaryFrame()});
if (point != nsPoint(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE)) {
if (point.y < mSpinBox->GetPrimaryFrame()->GetSize().height / 2) {
return eSpinButtonUp;
}
return eSpinButtonDown;
}
}
return eSpinButtonNone;
}
void nsNumberControlFrame::SpinnerStateChanged() const {
MOZ_ASSERT(mSpinUp && mSpinDown,
"We should not be called when we have no spinner");
nsIFrame* spinUpFrame = mSpinUp->GetPrimaryFrame();
if (spinUpFrame && spinUpFrame->IsThemed()) {
spinUpFrame->InvalidateFrame();
}
nsIFrame* spinDownFrame = mSpinDown->GetPrimaryFrame();
if (spinDownFrame && spinDownFrame->IsThemed()) {
spinDownFrame->InvalidateFrame();
}
}
bool nsNumberControlFrame::SpinnerUpButtonIsDepressed() const {
return HTMLInputElement::FromNode(mContent)
->NumberSpinnerUpButtonIsDepressed();
}
bool nsNumberControlFrame::SpinnerDownButtonIsDepressed() const {
return HTMLInputElement::FromNode(mContent)
->NumberSpinnerDownButtonIsDepressed();
}
#define STYLES_DISABLING_NATIVE_THEMING \
NS_AUTHOR_SPECIFIED_BORDER_OR_BACKGROUND | NS_AUTHOR_SPECIFIED_PADDING
bool nsNumberControlFrame::ShouldUseNativeStyleForSpinner() const {
MOZ_ASSERT(mSpinUp && mSpinDown,
"We should not be called when we have no spinner");
nsIFrame* spinUpFrame = mSpinUp->GetPrimaryFrame();
nsIFrame* spinDownFrame = mSpinDown->GetPrimaryFrame();
return spinUpFrame &&
spinUpFrame->StyleDisplay()->EffectiveAppearance() ==
StyleAppearance::SpinnerUpbutton &&
!PresContext()->HasAuthorSpecifiedRules(
spinUpFrame, STYLES_DISABLING_NATIVE_THEMING) &&
spinDownFrame &&
spinDownFrame->StyleDisplay()->EffectiveAppearance() ==
StyleAppearance::SpinnerDownbutton &&
!PresContext()->HasAuthorSpecifiedRules(
spinDownFrame, STYLES_DISABLING_NATIVE_THEMING);
}
void nsNumberControlFrame::AppendAnonymousContentTo(
nsTArray<nsIContent*>& aElements, uint32_t aFilter) {
if (mOuterWrapper) {
aElements.AppendElement(mOuterWrapper);
}
if (mPlaceholderDiv) {
aElements.AppendElement(mPlaceholderDiv);
}
if (mPreviewDiv) {
aElements.AppendElement(mPreviewDiv);
}
}
#ifdef ACCESSIBILITY
a11y::AccType nsNumberControlFrame::AccessibleType() {
return a11y::eHTMLSpinnerType;
}
#endif
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