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tenfourfox/layout/forms/nsNumberControlFrame.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "HTMLInputElement.h"
#include "ICUUtils.h"
#include "nsIFocusManager.h"
#include "nsIPresShell.h"
#include "nsFocusManager.h"
#include "nsFontMetrics.h"
#include "nsFormControlFrame.h"
#include "nsGkAtoms.h"
#include "nsNameSpaceManager.h"
#include "nsThemeConstants.h"
#include "mozilla/BasicEvents.h"
#include "mozilla/EventStates.h"
#include "nsContentUtils.h"
#include "nsContentCreatorFunctions.h"
#include "nsContentList.h"
#include "nsStyleSet.h"
#include "nsIDOMMutationEvent.h"
#include "nsThreadUtils.h"
#include "mozilla/FloatingPoint.h"
#ifdef ACCESSIBILITY
#include "mozilla/a11y/AccTypes.h"
#endif
using namespace mozilla;
using namespace mozilla::dom;
nsIFrame*
NS_NewNumberControlFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsNumberControlFrame(aContext);
}
NS_IMPL_FRAMEARENA_HELPERS(nsNumberControlFrame)
NS_QUERYFRAME_HEAD(nsNumberControlFrame)
NS_QUERYFRAME_ENTRY(nsNumberControlFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_ENTRY(nsITextControlFrame)
NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame)
nsNumberControlFrame::nsNumberControlFrame(nsStyleContext* aContext)
: nsContainerFrame(aContext)
, mHandlingInputEvent(false)
{
}
void
nsNumberControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
NS_ASSERTION(!GetPrevContinuation() && !GetNextContinuation(),
"nsNumberControlFrame should not have continuations; if it does we "
"need to call RegUnregAccessKey only for the first");
nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
nsContentUtils::DestroyAnonymousContent(&mOuterWrapper);
nsContainerFrame::DestroyFrom(aDestructRoot);
}
nscoord
nsNumberControlFrame::GetMinISize(nsRenderingContext* aRenderingContext)
{
nscoord result;
DISPLAY_MIN_WIDTH(this, result);
nsIFrame* kid = mFrames.FirstChild();
if (kid) { // display:none?
result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
kid,
nsLayoutUtils::MIN_ISIZE);
} else {
result = 0;
}
return result;
}
nscoord
nsNumberControlFrame::GetPrefISize(nsRenderingContext* aRenderingContext)
{
nscoord result;
DISPLAY_PREF_WIDTH(this, result);
nsIFrame* kid = mFrames.FirstChild();
if (kid) { // display:none?
result = nsLayoutUtils::IntrinsicForContainer(aRenderingContext,
kid,
nsLayoutUtils::PREF_ISIZE);
} else {
result = 0;
}
return result;
}
void
nsNumberControlFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsNumberControlFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
NS_ASSERTION(mOuterWrapper, "Outer wrapper div must exist!");
NS_ASSERTION(!GetPrevContinuation() && !GetNextContinuation(),
"nsNumberControlFrame should not have continuations; if it does we "
"need to call RegUnregAccessKey only for the first");
NS_ASSERTION(!mFrames.FirstChild() ||
!mFrames.FirstChild()->GetNextSibling(),
"We expect at most one direct child frame");
if (mState & NS_FRAME_FIRST_REFLOW) {
nsFormControlFrame::RegUnRegAccessKey(this, true);
}
const WritingMode myWM = aReflowState.GetWritingMode();
// The ISize of our content box, which is the available ISize
// for our anonymous content:
const nscoord contentBoxISize = aReflowState.ComputedISize();
nscoord contentBoxBSize = aReflowState.ComputedBSize();
// Figure out our border-box sizes as well (by adding borderPadding to
// content-box sizes):
const nscoord borderBoxISize = contentBoxISize +
aReflowState.ComputedLogicalBorderPadding().IStartEnd(myWM);
nscoord borderBoxBSize;
if (contentBoxBSize != NS_INTRINSICSIZE) {
borderBoxBSize = contentBoxBSize +
aReflowState.ComputedLogicalBorderPadding().BStartEnd(myWM);
} // else, we'll figure out borderBoxBSize after we resolve contentBoxBSize.
nsIFrame* outerWrapperFrame = mOuterWrapper->GetPrimaryFrame();
if (!outerWrapperFrame) { // display:none?
if (contentBoxBSize == NS_INTRINSICSIZE) {
contentBoxBSize = 0;
borderBoxBSize =
aReflowState.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
} else {
NS_ASSERTION(outerWrapperFrame == mFrames.FirstChild(), "huh?");
nsHTMLReflowMetrics wrappersDesiredSize(aReflowState);
WritingMode wrapperWM = outerWrapperFrame->GetWritingMode();
LogicalSize availSize = aReflowState.ComputedSize(wrapperWM);
availSize.BSize(wrapperWM) = NS_UNCONSTRAINEDSIZE;
nsHTMLReflowState wrapperReflowState(aPresContext, aReflowState,
outerWrapperFrame, availSize);
// Convert wrapper margin into my own writing-mode (in case it differs):
LogicalMargin wrapperMargin =
wrapperReflowState.ComputedLogicalMargin().ConvertTo(myWM, wrapperWM);
// offsets of wrapper frame within this frame:
LogicalPoint
wrapperOffset(myWM,
aReflowState.ComputedLogicalBorderPadding().IStart(myWM) +
wrapperMargin.IStart(myWM),
aReflowState.ComputedLogicalBorderPadding().BStart(myWM) +
wrapperMargin.BStart(myWM));
nsReflowStatus childStatus;
// We initially reflow the child with a dummy containerSize; positioning
// will be fixed later.
const nsSize dummyContainerSize;
ReflowChild(outerWrapperFrame, aPresContext, wrappersDesiredSize,
wrapperReflowState, myWM, wrapperOffset, dummyContainerSize, 0,
childStatus);
MOZ_ASSERT(NS_FRAME_IS_FULLY_COMPLETE(childStatus),
"We gave our child unconstrained available block-size, "
"so it should be complete");
nscoord wrappersMarginBoxBSize =
wrappersDesiredSize.BSize(myWM) + wrapperMargin.BStartEnd(myWM);
if (contentBoxBSize == NS_INTRINSICSIZE) {
// We are intrinsically sized -- we should shrinkwrap the outer wrapper's
// block-size:
contentBoxBSize = wrappersMarginBoxBSize;
// Make sure we obey min/max-bsize in the case when we're doing intrinsic
// sizing (we get it for free when we have a non-intrinsic
// aReflowState.ComputedBSize()). Note that we do this before
// adjusting for borderpadding, since ComputedMaxBSize and
// ComputedMinBSize are content heights.
contentBoxBSize =
NS_CSS_MINMAX(contentBoxBSize,
aReflowState.ComputedMinBSize(),
aReflowState.ComputedMaxBSize());
borderBoxBSize = contentBoxBSize +
aReflowState.ComputedLogicalBorderPadding().BStartEnd(myWM);
}
// Center child in block axis
nscoord extraSpace = contentBoxBSize - wrappersMarginBoxBSize;
wrapperOffset.B(myWM) += std::max(0, extraSpace / 2);
// Needed in FinishReflowChild, for logical-to-physical conversion:
nsSize borderBoxSize = LogicalSize(myWM, borderBoxISize, borderBoxBSize).
GetPhysicalSize(myWM);
// Place the child
FinishReflowChild(outerWrapperFrame, aPresContext, wrappersDesiredSize,
&wrapperReflowState, myWM, wrapperOffset,
borderBoxSize, 0);
nsSize contentBoxSize =
LogicalSize(myWM, contentBoxISize, contentBoxBSize).
GetPhysicalSize(myWM);
aDesiredSize.SetBlockStartAscent(
wrappersDesiredSize.BlockStartAscent() +
outerWrapperFrame->BStart(aReflowState.GetWritingMode(),
contentBoxSize));
}
LogicalSize logicalDesiredSize(myWM, borderBoxISize, borderBoxBSize);
aDesiredSize.SetSize(myWM, logicalDesiredSize);
aDesiredSize.SetOverflowAreasToDesiredBounds();
if (outerWrapperFrame) {
ConsiderChildOverflow(aDesiredSize.mOverflowAreas, outerWrapperFrame);
}
FinishAndStoreOverflow(&aDesiredSize);
aStatus = NS_FRAME_COMPLETE;
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
}
void
nsNumberControlFrame::SyncDisabledState()
{
EventStates eventStates = mContent->AsElement()->State();
if (eventStates.HasState(NS_EVENT_STATE_DISABLED)) {
mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::disabled, EmptyString(),
true);
} else {
mTextField->UnsetAttr(kNameSpaceID_None, nsGkAtoms::disabled, true);
}
}
nsresult
nsNumberControlFrame::AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType)
{
// nsGkAtoms::disabled is handled by SyncDisabledState
if (aNameSpaceID == kNameSpaceID_None) {
if (aAttribute == nsGkAtoms::placeholder ||
aAttribute == nsGkAtoms::readonly ||
aAttribute == nsGkAtoms::tabindex) {
if (aModType == nsIDOMMutationEvent::REMOVAL) {
mTextField->UnsetAttr(aNameSpaceID, aAttribute, true);
} else {
MOZ_ASSERT(aModType == nsIDOMMutationEvent::ADDITION ||
aModType == nsIDOMMutationEvent::MODIFICATION);
nsAutoString value;
mContent->GetAttr(aNameSpaceID, aAttribute, value);
mTextField->SetAttr(aNameSpaceID, aAttribute, value, true);
}
}
}
return nsContainerFrame::AttributeChanged(aNameSpaceID, aAttribute,
aModType);
}
void
nsNumberControlFrame::ContentStatesChanged(EventStates aStates)
{
if (aStates.HasState(NS_EVENT_STATE_DISABLED)) {
nsContentUtils::AddScriptRunner(new SyncDisabledStateEvent(this));
}
}
nsITextControlFrame*
nsNumberControlFrame::GetTextFieldFrame()
{
return do_QueryFrame(GetAnonTextControl()->GetPrimaryFrame());
}
class FocusTextField : public nsRunnable
{
public:
FocusTextField(nsIContent* aNumber, nsIContent* aTextField)
: mNumber(aNumber),
mTextField(aTextField)
{}
NS_IMETHODIMP Run() override
{
if (mNumber->AsElement()->State().HasState(NS_EVENT_STATE_FOCUS)) {
HTMLInputElement::FromContent(mTextField)->Focus();
}
return NS_OK;
}
private:
nsCOMPtr<nsIContent> mNumber;
nsCOMPtr<nsIContent> mTextField;
};
nsresult
nsNumberControlFrame::MakeAnonymousElement(Element** aResult,
nsTArray<ContentInfo>& aElements,
nsIAtom* aTagName,
nsCSSPseudoElements::Type aPseudoType,
nsStyleContext* aParentContext)
{
// Get the NodeInfoManager and tag necessary to create the anonymous divs.
nsCOMPtr<nsIDocument> doc = mContent->GetComposedDoc();
RefPtr<Element> resultElement = doc->CreateHTMLElement(aTagName);
// If we legitimately fail this assertion and need to allow
// non-pseudo-element anonymous children, then we'll need to add a branch
// that calls ResolveStyleFor((*aResult)->AsElement(), aParentContext)") to
// set newStyleContext.
NS_ASSERTION(aPseudoType != nsCSSPseudoElements::ePseudo_NotPseudoElement,
"Expecting anonymous children to all be pseudo-elements");
// Associate the pseudo-element with the anonymous child
RefPtr<nsStyleContext> newStyleContext =
PresContext()->StyleSet()->ResolvePseudoElementStyle(mContent->AsElement(),
aPseudoType,
aParentContext,
resultElement);
if (!aElements.AppendElement(ContentInfo(resultElement, newStyleContext))) {
return NS_ERROR_OUT_OF_MEMORY;
}
if (aPseudoType == nsCSSPseudoElements::ePseudo_mozNumberSpinDown ||
aPseudoType == nsCSSPseudoElements::ePseudo_mozNumberSpinUp) {
resultElement->SetAttr(kNameSpaceID_None, nsGkAtoms::role,
NS_LITERAL_STRING("button"), false);
}
resultElement.forget(aResult);
return NS_OK;
}
nsresult
nsNumberControlFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
nsresult rv;
// We create an anonymous tree for our input element that is structured as
// follows:
//
// input
// div - outer wrapper with "display:flex" by default
// input - text input field
// div - spin box wrapping up/down arrow buttons
// div - spin up (up arrow button)
// div - spin down (down arrow button)
//
// If you change this, be careful to change the destruction order in
// nsNumberControlFrame::DestroyFrom.
// Create the anonymous outer wrapper:
rv = MakeAnonymousElement(getter_AddRefs(mOuterWrapper),
aElements,
nsGkAtoms::div,
nsCSSPseudoElements::ePseudo_mozNumberWrapper,
mStyleContext);
NS_ENSURE_SUCCESS(rv, rv);
ContentInfo& outerWrapperCI = aElements.LastElement();
// Create the ::-moz-number-text pseudo-element:
rv = MakeAnonymousElement(getter_AddRefs(mTextField),
outerWrapperCI.mChildren,
nsGkAtoms::input,
nsCSSPseudoElements::ePseudo_mozNumberText,
outerWrapperCI.mStyleContext);
NS_ENSURE_SUCCESS(rv, rv);
mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::type,
NS_LITERAL_STRING("text"), PR_FALSE);
HTMLInputElement* content = HTMLInputElement::FromContent(mContent);
HTMLInputElement* textField = HTMLInputElement::FromContent(mTextField);
// Initialize the text field value:
nsAutoString value;
content->GetValue(value);
SetValueOfAnonTextControl(value);
// If we're readonly, make sure our anonymous text control is too:
nsAutoString readonly;
if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::readonly, readonly)) {
mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::readonly, readonly, false);
}
// Propogate our tabindex:
int32_t tabIndex;
content->GetTabIndex(&tabIndex);
textField->SetTabIndex(tabIndex);
// Initialize the text field's placeholder, if ours is set:
nsAutoString placeholder;
if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::placeholder, placeholder)) {
mTextField->SetAttr(kNameSpaceID_None, nsGkAtoms::placeholder, placeholder, false);
}
if (mContent->AsElement()->State().HasState(NS_EVENT_STATE_FOCUS)) {
// We don't want to focus the frame but the text field.
RefPtr<FocusTextField> focusJob = new FocusTextField(mContent, mTextField);
nsContentUtils::AddScriptRunner(focusJob);
}
if (StyleDisplay()->mAppearance == NS_THEME_TEXTFIELD) {
// The author has elected to hide the spinner by setting this
// -moz-appearance. We will reframe if it changes.
return rv;
}
// Create the ::-moz-number-spin-box pseudo-element:
rv = MakeAnonymousElement(getter_AddRefs(mSpinBox),
outerWrapperCI.mChildren,
nsGkAtoms::div,
nsCSSPseudoElements::ePseudo_mozNumberSpinBox,
outerWrapperCI.mStyleContext);
NS_ENSURE_SUCCESS(rv, rv);
ContentInfo& spinBoxCI = outerWrapperCI.mChildren.LastElement();
// Create the ::-moz-number-spin-up pseudo-element:
rv = MakeAnonymousElement(getter_AddRefs(mSpinUp),
spinBoxCI.mChildren,
nsGkAtoms::div,
nsCSSPseudoElements::ePseudo_mozNumberSpinUp,
spinBoxCI.mStyleContext);
NS_ENSURE_SUCCESS(rv, rv);
// Create the ::-moz-number-spin-down pseudo-element:
rv = MakeAnonymousElement(getter_AddRefs(mSpinDown),
spinBoxCI.mChildren,
nsGkAtoms::div,
nsCSSPseudoElements::ePseudo_mozNumberSpinDown,
spinBoxCI.mStyleContext);
SyncDisabledState();
return rv;
}
nsIAtom*
nsNumberControlFrame::GetType() const
{
return nsGkAtoms::numberControlFrame;
}
NS_IMETHODIMP
nsNumberControlFrame::GetEditor(nsIEditor **aEditor)
{
return GetTextFieldFrame()->GetEditor(aEditor);
}
NS_IMETHODIMP
nsNumberControlFrame::SetSelectionStart(int32_t aSelectionStart)
{
return GetTextFieldFrame()->SetSelectionStart(aSelectionStart);
}
NS_IMETHODIMP
nsNumberControlFrame::SetSelectionEnd(int32_t aSelectionEnd)
{
return GetTextFieldFrame()->SetSelectionEnd(aSelectionEnd);
}
NS_IMETHODIMP
nsNumberControlFrame::SetSelectionRange(int32_t aSelectionStart,
int32_t aSelectionEnd,
SelectionDirection aDirection)
{
return GetTextFieldFrame()->SetSelectionRange(aSelectionStart, aSelectionEnd,
aDirection);
}
NS_IMETHODIMP
nsNumberControlFrame::GetSelectionRange(int32_t* aSelectionStart,
int32_t* aSelectionEnd,
SelectionDirection* aDirection)
{
return GetTextFieldFrame()->GetSelectionRange(aSelectionStart, aSelectionEnd,
aDirection);
}
NS_IMETHODIMP
nsNumberControlFrame::GetOwnedSelectionController(nsISelectionController** aSelCon)
{
return GetTextFieldFrame()->GetOwnedSelectionController(aSelCon);
}
nsFrameSelection*
nsNumberControlFrame::GetOwnedFrameSelection()
{
return GetTextFieldFrame()->GetOwnedFrameSelection();
}
nsresult
nsNumberControlFrame::GetPhonetic(nsAString& aPhonetic)
{
return GetTextFieldFrame()->GetPhonetic(aPhonetic);
}
nsresult
nsNumberControlFrame::EnsureEditorInitialized()
{
return GetTextFieldFrame()->EnsureEditorInitialized();
}
nsresult
nsNumberControlFrame::ScrollSelectionIntoView()
{
return GetTextFieldFrame()->ScrollSelectionIntoView();
}
void
nsNumberControlFrame::SetFocus(bool aOn, bool aRepaint)
{
GetTextFieldFrame()->SetFocus(aOn, aRepaint);
}
nsresult
nsNumberControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
{
return GetTextFieldFrame()->SetFormProperty(aName, aValue);
}
HTMLInputElement*
nsNumberControlFrame::GetAnonTextControl()
{
return mTextField ? HTMLInputElement::FromContent(mTextField) : nullptr;
}
/* 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->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->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->originalTarget == mSpinUp) {
return eSpinButtonUp;
}
if (aEvent->originalTarget == mSpinDown) {
return eSpinButtonDown;
}
if (aEvent->originalTarget == 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->refPoint;
nsPoint point =
nsLayoutUtils::GetEventCoordinatesRelativeTo(aEvent,
absPoint, 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::FromContent(mContent)->
NumberSpinnerUpButtonIsDepressed();
}
bool
nsNumberControlFrame::SpinnerDownButtonIsDepressed() const
{
return HTMLInputElement::FromContent(mContent)->
NumberSpinnerDownButtonIsDepressed();
}
bool
nsNumberControlFrame::IsFocused() const
{
// Normally this depends on the state of our anonymous text control (which
// takes focus for us), but in the case that it does not have a frame we will
// have focus ourself.
return mTextField->AsElement()->State().HasState(NS_EVENT_STATE_FOCUS) ||
mContent->AsElement()->State().HasState(NS_EVENT_STATE_FOCUS);
}
void
nsNumberControlFrame::HandleFocusEvent(WidgetEvent* aEvent)
{
if (aEvent->originalTarget != mTextField) {
// Move focus to our text field
RefPtr<HTMLInputElement> textField = HTMLInputElement::FromContent(mTextField);
textField->Focus();
}
}
nsresult
nsNumberControlFrame::HandleSelectCall()
{
RefPtr<HTMLInputElement> textField = HTMLInputElement::FromContent(mTextField);
return textField->Select();
}
#define STYLES_DISABLING_NATIVE_THEMING \
NS_AUTHOR_SPECIFIED_BACKGROUND | \
NS_AUTHOR_SPECIFIED_PADDING | \
NS_AUTHOR_SPECIFIED_BORDER
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()->mAppearance == NS_THEME_SPINNER_UP_BUTTON &&
!PresContext()->HasAuthorSpecifiedRules(spinUpFrame,
STYLES_DISABLING_NATIVE_THEMING) &&
spinDownFrame &&
spinDownFrame->StyleDisplay()->mAppearance == NS_THEME_SPINNER_DOWN_BUTTON &&
!PresContext()->HasAuthorSpecifiedRules(spinDownFrame,
STYLES_DISABLING_NATIVE_THEMING);
}
void
nsNumberControlFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter)
{
// Only one direct anonymous child:
if (mOuterWrapper) {
aElements.AppendElement(mOuterWrapper);
}
}
void
nsNumberControlFrame::SetValueOfAnonTextControl(const nsAString& aValue)
{
if (mHandlingInputEvent) {
// We have been called while our HTMLInputElement is processing a DOM
// 'input' event targeted at our anonymous text control. Our
// HTMLInputElement has taken the value of our anon text control and
// called SetValueInternal on itself to keep its own value in sync. As a
// result SetValueInternal has called us. In this one case we do not want
// to update our anon text control, especially since aValue will be the
// sanitized value, and only the internal value should be sanitized (not
// the value shown to the user, and certainly we shouldn't change it as
// they type).
return;
}
// Init to aValue so that we set aValue as the value of our text control if
// aValue isn't a valid number (in which case the HTMLInputElement's validity
// state will be set to invalid) or if aValue can't be localized:
nsAutoString localizedValue(aValue);
#ifdef ENABLE_INTL_API
// Try and localize the value we will set:
Decimal val = HTMLInputElement::StringToDecimal(aValue);
if (val.isFinite()) {
ICUUtils::LanguageTagIterForContent langTagIter(mContent);
ICUUtils::LocalizeNumber(val.toDouble(), langTagIter, localizedValue);
}
#endif
// We need to update the value of our anonymous text control here. Note that
// this must be its value, and not its 'value' attribute (the default value),
// since the default value is ignored once a user types into the text
// control.
HTMLInputElement::FromContent(mTextField)->SetValue(localizedValue);
}
void
nsNumberControlFrame::GetValueOfAnonTextControl(nsAString& aValue)
{
if (!mTextField) {
aValue.Truncate();
return;
}
HTMLInputElement::FromContent(mTextField)->GetValue(aValue);
#ifdef ENABLE_INTL_API
// Here we need to de-localize any number typed in by the user. That is, we
// need to convert it from the number format of the user's language, region,
// etc. to the format that the HTML 5 spec defines to be a "valid
// floating-point number":
//
// http://www.whatwg.org/specs/web-apps/current-work/multipage/common-microsyntaxes.html#floating-point-numbers
//
// This is necessary to allow the number that we return to be parsed by
// functions like HTMLInputElement::StringToDecimal (the HTML-5-conforming
// parsing function) which don't know how to handle numbers that are
// formatted differently (for example, with non-ASCII digits, with grouping
// separator characters or with a decimal separator character other than
// '.').
ICUUtils::LanguageTagIterForContent langTagIter(mContent);
double value = ICUUtils::ParseNumber(aValue, langTagIter);
if (!IsFinite(value)) {
aValue.Truncate();
return;
}
if (value == HTMLInputElement::StringToDecimal(aValue).toDouble()) {
// We want to preserve the formatting of the number as typed in by the user
// whenever possible. Since the localized serialization parses to the same
// number as the de-localized serialization, we can do that. This helps
// prevent normalization of input such as "2e2" (which would otherwise be
// converted to "200"). Content relies on this.
//
// Typically we will only get here for locales in which numbers are
// formatted in the same way as they are for HTML5's "valid floating-point
// number" format.
return;
}
// We can't preserve the formatting, otherwise functions such as
// HTMLInputElement::StringToDecimal would incorrectly process the number
// input by the user. For example, "12.345" with lang=de de-localizes as
// 12345, but HTMLInputElement::StringToDecimal would mistakenly parse it as
// 12.345. Another example would be "12,345" with lang=de which de-localizes
// as 12.345, but HTMLInputElement::StringToDecimal would parse it to NaN.
aValue.Truncate();
aValue.AppendFloat(value);
#endif
}
bool
nsNumberControlFrame::AnonTextControlIsEmpty()
{
if (!mTextField) {
return true;
}
nsAutoString value;
HTMLInputElement::FromContent(mTextField)->GetValue(value);
return value.IsEmpty();
}
Element*
nsNumberControlFrame::GetPseudoElement(nsCSSPseudoElements::Type aType)
{
if (aType == nsCSSPseudoElements::ePseudo_mozNumberWrapper) {
return mOuterWrapper;
}
if (aType == nsCSSPseudoElements::ePseudo_mozNumberText) {
return mTextField;
}
if (aType == nsCSSPseudoElements::ePseudo_mozNumberSpinBox) {
// Might be null.
return mSpinBox;
}
if (aType == nsCSSPseudoElements::ePseudo_mozNumberSpinUp) {
// Might be null.
return mSpinUp;
}
if (aType == nsCSSPseudoElements::ePseudo_mozNumberSpinDown) {
// Might be null.
return mSpinDown;
}
return nsContainerFrame::GetPseudoElement(aType);
}
#ifdef ACCESSIBILITY
a11y::AccType
nsNumberControlFrame::AccessibleType()
{
return a11y::eHTMLSpinnerType;
}
#endif
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