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/*
* Copyright (C) 2006-2018 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "TextControlInnerElements.h"
#include "CSSPrimitiveValue.h"
#include "CSSToLengthConversionData.h"
#include "Document.h"
#include "EventNames.h"
#include "Frame.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "LocalizedStrings.h"
#include "MouseEvent.h"
#include "PlatformMouseEvent.h"
#include "RenderSearchField.h"
#include "RenderTextControl.h"
#include "RenderView.h"
#include "ScriptController.h"
#include "ShadowRoot.h"
#include "StyleResolver.h"
#include "TextEvent.h"
#include "TextEventInputType.h"
#include <wtf/IsoMallocInlines.h>
#include <wtf/Ref.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(TextControlInnerContainer);
WTF_MAKE_ISO_ALLOCATED_IMPL(TextControlInnerElement);
WTF_MAKE_ISO_ALLOCATED_IMPL(TextControlInnerTextElement);
WTF_MAKE_ISO_ALLOCATED_IMPL(TextControlPlaceholderElement);
WTF_MAKE_ISO_ALLOCATED_IMPL(SearchFieldResultsButtonElement);
WTF_MAKE_ISO_ALLOCATED_IMPL(SearchFieldCancelButtonElement);
using namespace HTMLNames;
TextControlInnerContainer::TextControlInnerContainer(Document& document)
: HTMLDivElement(divTag, document)
{
setHasCustomStyleResolveCallbacks();
}
Ref<TextControlInnerContainer> TextControlInnerContainer::create(Document& document)
{
return adoptRef(*new TextControlInnerContainer(document));
}
RenderPtr<RenderElement> TextControlInnerContainer::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
return createRenderer<RenderTextControlInnerContainer>(*this, WTFMove(style));
}
static inline bool isStrongPasswordTextField(const Element* element)
{
return is<HTMLInputElement>(element) && downcast<HTMLInputElement>(element)->hasAutoFillStrongPasswordButton();
}
Optional<Style::ElementStyle> TextControlInnerContainer::resolveCustomStyle(const RenderStyle& parentStyle, const RenderStyle*)
{
auto elementStyle = resolveStyle(&parentStyle);
if (isStrongPasswordTextField(shadowHost())) {
elementStyle.renderStyle->setFlexWrap(FlexWrap::Wrap);
elementStyle.renderStyle->setOverflowX(Overflow::Hidden);
elementStyle.renderStyle->setOverflowY(Overflow::Hidden);
}
return elementStyle;
}
TextControlInnerElement::TextControlInnerElement(Document& document)
: HTMLDivElement(divTag, document)
{
setHasCustomStyleResolveCallbacks();
}
Ref<TextControlInnerElement> TextControlInnerElement::create(Document& document)
{
return adoptRef(*new TextControlInnerElement(document));
}
Optional<Style::ElementStyle> TextControlInnerElement::resolveCustomStyle(const RenderStyle&, const RenderStyle* shadowHostStyle)
{
auto newStyle = RenderStyle::createPtr();
newStyle->inheritFrom(*shadowHostStyle);
newStyle->setFlexGrow(1);
newStyle->setMinWidth(Length { 0, Fixed }); // Needed for correct shrinking.
newStyle->setDisplay(DisplayType::Block);
newStyle->setDirection(TextDirection::LTR);
// We don't want the shadow DOM to be editable, so we set this block to read-only in case the input itself is editable.
newStyle->setUserModify(UserModify::ReadOnly);
if (isStrongPasswordTextField(shadowHost())) {
newStyle->setFlexShrink(0);
newStyle->setTextOverflow(TextOverflow::Clip);
newStyle->setOverflowX(Overflow::Hidden);
newStyle->setOverflowY(Overflow::Hidden);
// Set "flex-basis: 1em". Note that CSSPrimitiveValue::computeLengthInt() only needs the element's
// style to calculate em lengths. Since the element might not be in a document, just pass nullptr
// for the root element style, the parent element style, and the render view.
auto emSize = CSSPrimitiveValue::create(1, CSSUnitType::CSS_EMS);
int pixels = emSize->computeLength<int>(CSSToLengthConversionData { newStyle.get(), nullptr, nullptr, nullptr, 1.0, WTF::nullopt });
newStyle->setFlexBasis(Length { pixels, Fixed });
}
return { WTFMove(newStyle) };
}
// MARK: TextControlInnerTextElement
inline TextControlInnerTextElement::TextControlInnerTextElement(Document& document)
: HTMLDivElement(divTag, document)
{
setHasCustomStyleResolveCallbacks();
}
Ref<TextControlInnerTextElement> TextControlInnerTextElement::create(Document& document)
{
return adoptRef(*new TextControlInnerTextElement(document));
}
void TextControlInnerTextElement::defaultEventHandler(Event& event)
{
// FIXME: In the future, we should add a way to have default event listeners.
// Then we would add one to the text field's inner div, and we wouldn't need this subclass.
// Or possibly we could just use a normal event listener.
if (event.isBeforeTextInsertedEvent()) {
// A TextControlInnerTextElement can have no host if its been detached,
// but kept alive by an EditCommand. In this case, an undo/redo can
// cause events to be sent to the TextControlInnerTextElement. To
// prevent an infinite loop, we must check for this case before sending
// the event up the chain.
if (auto host = makeRefPtr(shadowHost()))
host->defaultEventHandler(event);
}
if (!event.defaultHandled())
HTMLDivElement::defaultEventHandler(event);
}
RenderPtr<RenderElement> TextControlInnerTextElement::createElementRenderer(RenderStyle&& style, const RenderTreePosition&)
{
return createRenderer<RenderTextControlInnerBlock>(*this, WTFMove(style));
}
RenderTextControlInnerBlock* TextControlInnerTextElement::renderer() const
{
return downcast<RenderTextControlInnerBlock>(HTMLDivElement::renderer());
}
Optional<Style::ElementStyle> TextControlInnerTextElement::resolveCustomStyle(const RenderStyle&, const RenderStyle* shadowHostStyle)
{
auto style = downcast<HTMLTextFormControlElement>(*shadowHost()).createInnerTextStyle(*shadowHostStyle);
return { makeUnique<RenderStyle>(WTFMove(style)) };
}
// MARK: TextControlPlaceholderElement
inline TextControlPlaceholderElement::TextControlPlaceholderElement(Document& document)
: HTMLDivElement(divTag, document)
{
static MainThreadNeverDestroyed<const AtomString> placeholderName("placeholder", AtomString::ConstructFromLiteral);
setPseudo(placeholderName);
setHasCustomStyleResolveCallbacks();
}
Ref<TextControlPlaceholderElement> TextControlPlaceholderElement::create(Document& document)
{
return adoptRef(*new TextControlPlaceholderElement(document));
}
Optional<Style::ElementStyle> TextControlPlaceholderElement::resolveCustomStyle(const RenderStyle& parentStyle, const RenderStyle* shadowHostStyle)
{
auto style = resolveStyle(&parentStyle);
auto& controlElement = downcast<HTMLTextFormControlElement>(*containingShadowRoot()->host());
style.renderStyle->setDisplay(controlElement.isPlaceholderVisible() ? DisplayType::Block : DisplayType::None);
if (is<HTMLInputElement>(controlElement)) {
auto& inputElement = downcast<HTMLInputElement>(controlElement);
style.renderStyle->setTextOverflow(inputElement.shouldTruncateText(*shadowHostStyle) ? TextOverflow::Ellipsis : TextOverflow::Clip);
}
return style;
}
// MARK: SearchFieldResultsButtonElement
inline SearchFieldResultsButtonElement::SearchFieldResultsButtonElement(Document& document)
: HTMLDivElement(divTag, document)
{
}
Ref<SearchFieldResultsButtonElement> SearchFieldResultsButtonElement::create(Document& document)
{
return adoptRef(*new SearchFieldResultsButtonElement(document));
}
void SearchFieldResultsButtonElement::defaultEventHandler(Event& event)
{
// On mousedown, bring up a menu, if needed
auto input = makeRefPtr(downcast<HTMLInputElement>(shadowHost()));
if (input && event.type() == eventNames().mousedownEvent && is<MouseEvent>(event) && downcast<MouseEvent>(event).button() == LeftButton) {
input->focus();
input->select();
#if !PLATFORM(IOS_FAMILY)
document().updateStyleIfNeeded();
if (auto* renderer = input->renderer()) {
auto& searchFieldRenderer = downcast<RenderSearchField>(*renderer);
if (searchFieldRenderer.popupIsVisible())
searchFieldRenderer.hidePopup();
else if (input->maxResults() > 0)
searchFieldRenderer.showPopup();
}
#endif
event.setDefaultHandled();
}
if (!event.defaultHandled())
HTMLDivElement::defaultEventHandler(event);
}
#if !PLATFORM(IOS_FAMILY)
bool SearchFieldResultsButtonElement::willRespondToMouseClickEvents()
{
return true;
}
#endif
// MARK: SearchFieldCancelButtonElement
inline SearchFieldCancelButtonElement::SearchFieldCancelButtonElement(Document& document)
: HTMLDivElement(divTag, document)
{
static MainThreadNeverDestroyed<const AtomString> webkitSearchCancelButtonName("-webkit-search-cancel-button", AtomString::ConstructFromLiteral);
static MainThreadNeverDestroyed<const AtomString> buttonName("button", AtomString::ConstructFromLiteral);
setHasCustomStyleResolveCallbacks();
setPseudo(webkitSearchCancelButtonName);
#if !PLATFORM(IOS_FAMILY)
setAttributeWithoutSynchronization(aria_labelAttr, AXSearchFieldCancelButtonText());
#endif
setAttributeWithoutSynchronization(roleAttr, buttonName);
}
Ref<SearchFieldCancelButtonElement> SearchFieldCancelButtonElement::create(Document& document)
{
return adoptRef(*new SearchFieldCancelButtonElement(document));
}
Optional<Style::ElementStyle> SearchFieldCancelButtonElement::resolveCustomStyle(const RenderStyle& parentStyle, const RenderStyle*)
{
auto elementStyle = resolveStyle(&parentStyle);
auto& inputElement = downcast<HTMLInputElement>(*shadowHost());
elementStyle.renderStyle->setVisibility(elementStyle.renderStyle->visibility() == Visibility::Hidden || inputElement.value().isEmpty() ? Visibility::Hidden : Visibility::Visible);
return elementStyle;
}
void SearchFieldCancelButtonElement::defaultEventHandler(Event& event)
{
RefPtr<HTMLInputElement> input(downcast<HTMLInputElement>(shadowHost()));
if (!input || input->isDisabledOrReadOnly()) {
if (!event.defaultHandled())
HTMLDivElement::defaultEventHandler(event);
return;
}
if (event.type() == eventNames().mousedownEvent && is<MouseEvent>(event) && downcast<MouseEvent>(event).button() == LeftButton) {
input->focus();
input->select();
event.setDefaultHandled();
}
if (event.type() == eventNames().clickEvent) {
input->setValueForUser(emptyString());
input->onSearch();
event.setDefaultHandled();
}
if (!event.defaultHandled())
HTMLDivElement::defaultEventHandler(event);
}
#if !PLATFORM(IOS_FAMILY)
bool SearchFieldCancelButtonElement::willRespondToMouseClickEvents()
{
const RefPtr<HTMLInputElement> input = downcast<HTMLInputElement>(shadowHost());
if (input && !input->isDisabledOrReadOnly())
return true;
return HTMLDivElement::willRespondToMouseClickEvents();
}
#endif
}