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173d001b86
This "upgrades" various nsLayoutUtils functions which take as inputs a set of coordinates and a frame that the coordinates are relative to, to accept a RelativeTo object instead of a frame. Most of the patch is just dumb propagation, but the few places where we use an explicit ViewportType::Visual are important. There are probably a few other places I've overlooked, but this seems to cover the important ones that come up commonly. There are undoubtedly other functions into which we can propagate RelativeTo, in this patch I've propagated it as far as necessary for my needs in this bug (mainly GetTransformToAncestor() and GetEventCoordinatesRelativeTo()). Differential Revision: https://phabricator.services.mozilla.com/D68919
274 lines
10 KiB
C++
274 lines
10 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsNumberControlFrame.h"
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#include "mozilla/BasicEvents.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/FloatingPoint.h"
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#include "mozilla/PresShell.h"
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#include "HTMLInputElement.h"
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#include "nsGkAtoms.h"
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#include "nsNameSpaceManager.h"
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#include "nsStyleConsts.h"
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#include "nsContentUtils.h"
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#include "nsContentCreatorFunctions.h"
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#include "nsCSSPseudoElements.h"
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#ifdef ACCESSIBILITY
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# include "mozilla/a11y/AccTypes.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::dom;
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nsIFrame* NS_NewNumberControlFrame(PresShell* aPresShell,
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ComputedStyle* aStyle) {
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return new (aPresShell)
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nsNumberControlFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(nsNumberControlFrame)
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NS_QUERYFRAME_HEAD(nsNumberControlFrame)
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NS_QUERYFRAME_ENTRY(nsNumberControlFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsTextControlFrame)
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nsNumberControlFrame::nsNumberControlFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsTextControlFrame(aStyle, aPresContext, kClassID) {}
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void nsNumberControlFrame::DestroyFrom(nsIFrame* aDestructRoot,
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PostDestroyData& aPostDestroyData) {
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aPostDestroyData.AddAnonymousContent(mOuterWrapper.forget());
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nsTextControlFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
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}
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already_AddRefed<Element> nsNumberControlFrame::MakeAnonymousElement(
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Element* aParent, nsAtom* aTagName, PseudoStyleType aPseudoType) {
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// Get the NodeInfoManager and tag necessary to create the anonymous divs.
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Document* doc = mContent->GetComposedDoc();
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RefPtr<Element> resultElement = doc->CreateHTMLElement(aTagName);
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resultElement->SetPseudoElementType(aPseudoType);
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if (aPseudoType == PseudoStyleType::mozNumberSpinDown ||
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aPseudoType == PseudoStyleType::mozNumberSpinUp) {
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resultElement->SetAttr(kNameSpaceID_None, nsGkAtoms::aria_hidden,
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NS_LITERAL_STRING("true"), false);
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}
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if (aParent) {
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aParent->AppendChildTo(resultElement, false);
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}
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return resultElement.forget();
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}
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nsresult nsNumberControlFrame::CreateAnonymousContent(
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nsTArray<ContentInfo>& aElements) {
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// We create an anonymous tree for our input element that is structured as
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// follows:
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//
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// input
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// div - outer wrapper with "display:flex" by default
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// div - editor root
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// div - spin box wrapping up/down arrow buttons
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// div - spin up (up arrow button)
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// div - spin down (down arrow button)
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// div - placeholder
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// div - preview div
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//
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// If you change this, be careful to change the destruction order in
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// nsNumberControlFrame::DestroyFrom.
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// Create the anonymous outer wrapper:
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mOuterWrapper = MakeAnonymousElement(nullptr, nsGkAtoms::div,
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PseudoStyleType::mozNumberWrapper);
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// We want to do this now, rather than on the caller, so that the
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// AppendChildTo calls below know that they are anonymous already. This is
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// important for the NODE_IS_EDITABLE flag handling, for example.
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mOuterWrapper->SetIsNativeAnonymousRoot();
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aElements.AppendElement(mOuterWrapper);
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nsTArray<ContentInfo> nestedContent;
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nsTextControlFrame::CreateAnonymousContent(nestedContent);
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for (auto& content : nestedContent) {
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// The root goes inside the container.
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if (content.mContent == mRootNode) {
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mOuterWrapper->AppendChildTo(content.mContent, false);
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} else {
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// The rest (placeholder and preview), directly under us.
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aElements.AppendElement(std::move(content));
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}
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}
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if (StyleDisplay()->mAppearance == StyleAppearance::Textfield) {
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// The author has elected to hide the spinner by setting this
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// -moz-appearance. We will reframe if it changes.
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return NS_OK;
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}
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// Create the ::-moz-number-spin-box pseudo-element:
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mSpinBox = MakeAnonymousElement(mOuterWrapper, nsGkAtoms::div,
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PseudoStyleType::mozNumberSpinBox);
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// Create the ::-moz-number-spin-up pseudo-element:
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mSpinUp = MakeAnonymousElement(mSpinBox, nsGkAtoms::div,
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PseudoStyleType::mozNumberSpinUp);
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// Create the ::-moz-number-spin-down pseudo-element:
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mSpinDown = MakeAnonymousElement(mSpinBox, nsGkAtoms::div,
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PseudoStyleType::mozNumberSpinDown);
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return NS_OK;
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}
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/* static */
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nsNumberControlFrame* nsNumberControlFrame::GetNumberControlFrameForTextField(
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nsIFrame* aFrame) {
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// If aFrame is the anon text field for an <input type=number> then we expect
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// the frame of its mContent's grandparent to be that input's frame. We
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// have to check for this via the content tree because we don't know whether
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// extra frames will be wrapped around any of the elements between aFrame and
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// the nsNumberControlFrame that we're looking for (e.g. flex wrappers).
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nsIContent* content = aFrame->GetContent();
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if (content->IsInNativeAnonymousSubtree() && content->GetParent() &&
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content->GetParent()->GetParent()) {
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nsIContent* grandparent = content->GetParent()->GetParent();
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if (grandparent->IsHTMLElement(nsGkAtoms::input) &&
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grandparent->AsElement()->AttrValueIs(
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kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::number,
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eCaseMatters)) {
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return do_QueryFrame(grandparent->GetPrimaryFrame());
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}
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}
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return nullptr;
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}
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/* static */
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nsNumberControlFrame* nsNumberControlFrame::GetNumberControlFrameForSpinButton(
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nsIFrame* aFrame) {
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// If aFrame is a spin button for an <input type=number> then we expect the
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// frame of its mContent's great-grandparent to be that input's frame. We
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// have to check for this via the content tree because we don't know whether
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// extra frames will be wrapped around any of the elements between aFrame and
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// the nsNumberControlFrame that we're looking for (e.g. flex wrappers).
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nsIContent* content = aFrame->GetContent();
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if (content->IsInNativeAnonymousSubtree() && content->GetParent() &&
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content->GetParent()->GetParent() &&
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content->GetParent()->GetParent()->GetParent()) {
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nsIContent* greatgrandparent =
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content->GetParent()->GetParent()->GetParent();
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if (greatgrandparent->IsHTMLElement(nsGkAtoms::input) &&
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greatgrandparent->AsElement()->AttrValueIs(
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kNameSpaceID_None, nsGkAtoms::type, nsGkAtoms::number,
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eCaseMatters)) {
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return do_QueryFrame(greatgrandparent->GetPrimaryFrame());
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}
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}
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return nullptr;
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}
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int32_t nsNumberControlFrame::GetSpinButtonForPointerEvent(
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WidgetGUIEvent* aEvent) const {
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MOZ_ASSERT(aEvent->mClass == eMouseEventClass, "Unexpected event type");
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if (!mSpinBox) {
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// we don't have a spinner
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return eSpinButtonNone;
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}
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if (aEvent->mOriginalTarget == mSpinUp) {
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return eSpinButtonUp;
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}
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if (aEvent->mOriginalTarget == mSpinDown) {
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return eSpinButtonDown;
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}
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if (aEvent->mOriginalTarget == mSpinBox) {
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// In the case that the up/down buttons are hidden (display:none) we use
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// just the spin box element, spinning up if the pointer is over the top
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// half of the element, or down if it's over the bottom half. This is
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// important to handle since this is the state things are in for the
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// default UA style sheet. See the comment in forms.css for why.
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LayoutDeviceIntPoint absPoint = aEvent->mRefPoint;
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nsPoint point = nsLayoutUtils::GetEventCoordinatesRelativeTo(
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aEvent, absPoint, RelativeTo{mSpinBox->GetPrimaryFrame()});
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if (point != nsPoint(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE)) {
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if (point.y < mSpinBox->GetPrimaryFrame()->GetSize().height / 2) {
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return eSpinButtonUp;
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}
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return eSpinButtonDown;
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}
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}
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return eSpinButtonNone;
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}
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void nsNumberControlFrame::SpinnerStateChanged() const {
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MOZ_ASSERT(mSpinUp && mSpinDown,
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"We should not be called when we have no spinner");
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nsIFrame* spinUpFrame = mSpinUp->GetPrimaryFrame();
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if (spinUpFrame && spinUpFrame->IsThemed()) {
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spinUpFrame->InvalidateFrame();
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}
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nsIFrame* spinDownFrame = mSpinDown->GetPrimaryFrame();
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if (spinDownFrame && spinDownFrame->IsThemed()) {
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spinDownFrame->InvalidateFrame();
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}
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}
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bool nsNumberControlFrame::SpinnerUpButtonIsDepressed() const {
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return HTMLInputElement::FromNode(mContent)
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->NumberSpinnerUpButtonIsDepressed();
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}
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bool nsNumberControlFrame::SpinnerDownButtonIsDepressed() const {
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return HTMLInputElement::FromNode(mContent)
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->NumberSpinnerDownButtonIsDepressed();
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}
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#define STYLES_DISABLING_NATIVE_THEMING \
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NS_AUTHOR_SPECIFIED_BORDER_OR_BACKGROUND | NS_AUTHOR_SPECIFIED_PADDING
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bool nsNumberControlFrame::ShouldUseNativeStyleForSpinner() const {
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MOZ_ASSERT(mSpinUp && mSpinDown,
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"We should not be called when we have no spinner");
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nsIFrame* spinUpFrame = mSpinUp->GetPrimaryFrame();
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nsIFrame* spinDownFrame = mSpinDown->GetPrimaryFrame();
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return spinUpFrame &&
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spinUpFrame->StyleDisplay()->mAppearance ==
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StyleAppearance::SpinnerUpbutton &&
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!PresContext()->HasAuthorSpecifiedRules(
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spinUpFrame, STYLES_DISABLING_NATIVE_THEMING) &&
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spinDownFrame &&
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spinDownFrame->StyleDisplay()->mAppearance ==
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StyleAppearance::SpinnerDownbutton &&
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!PresContext()->HasAuthorSpecifiedRules(
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spinDownFrame, STYLES_DISABLING_NATIVE_THEMING);
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}
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void nsNumberControlFrame::AppendAnonymousContentTo(
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nsTArray<nsIContent*>& aElements, uint32_t aFilter) {
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if (mOuterWrapper) {
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aElements.AppendElement(mOuterWrapper);
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}
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if (mPlaceholderDiv) {
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aElements.AppendElement(mPlaceholderDiv);
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}
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if (mPreviewDiv) {
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aElements.AppendElement(mPreviewDiv);
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}
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}
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#ifdef ACCESSIBILITY
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a11y::AccType nsNumberControlFrame::AccessibleType() {
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return a11y::eHTMLSpinnerType;
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}
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#endif
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