224 lines
6.7 KiB
C++
224 lines
6.7 KiB
C++
/*
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* Copyright (C) 2004-2018 Apple Inc. All rights reserved.
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* Copyright (C) 2010 Google Inc. All rights reserved.
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* Copyright (C) 2012 Samsung Electronics. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include "config.h"
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#include "ImageInputType.h"
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#include "CachedImage.h"
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#include "DOMFormData.h"
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#include "HTMLFormElement.h"
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#include "HTMLImageLoader.h"
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#include "HTMLInputElement.h"
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#include "HTMLNames.h"
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#include "HTMLParserIdioms.h"
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#include "InputTypeNames.h"
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#include "MouseEvent.h"
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#include "RenderImage.h"
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#include <wtf/NeverDestroyed.h>
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namespace WebCore {
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using namespace HTMLNames;
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ImageInputType::ImageInputType(HTMLInputElement& element)
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: BaseButtonInputType(Type::Image, element)
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{
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}
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const AtomString& ImageInputType::formControlType() const
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{
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return InputTypeNames::image();
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}
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bool ImageInputType::isFormDataAppendable() const
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{
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return true;
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}
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bool ImageInputType::appendFormData(DOMFormData& formData, bool) const
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{
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ASSERT(element());
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if (!element()->isActivatedSubmit())
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return false;
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auto& name = element()->name();
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if (name.isEmpty()) {
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formData.append("x"_s, String::number(m_clickLocation.x()));
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formData.append("y"_s, String::number(m_clickLocation.y()));
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return true;
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}
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formData.append(makeString(name, ".x"), String::number(m_clickLocation.x()));
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formData.append(makeString(name, ".y"), String::number(m_clickLocation.y()));
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auto value = element()->value();
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if (!value.isEmpty())
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formData.append(name, value);
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return true;
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}
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void ImageInputType::handleDOMActivateEvent(Event& event)
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{
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ASSERT(element());
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Ref<HTMLInputElement> protectedElement(*element());
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if (protectedElement->isDisabledFormControl() || !protectedElement->form())
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return;
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Ref<HTMLFormElement> protectedForm(*protectedElement->form());
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protectedElement->setActivatedSubmit(true);
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m_clickLocation = IntPoint();
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if (event.underlyingEvent()) {
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Event& underlyingEvent = *event.underlyingEvent();
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if (is<MouseEvent>(underlyingEvent)) {
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MouseEvent& mouseEvent = downcast<MouseEvent>(underlyingEvent);
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if (!mouseEvent.isSimulated())
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m_clickLocation = IntPoint(mouseEvent.offsetX(), mouseEvent.offsetY());
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}
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}
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// Update layout before processing form actions in case the style changes
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// the Form or button relationships.
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protectedElement->document().updateLayoutIgnorePendingStylesheets();
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if (auto currentForm = protectedElement->form())
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currentForm->submitIfPossible(&event); // Event handlers can run.
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protectedElement->setActivatedSubmit(false);
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event.setDefaultHandled();
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}
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RenderPtr<RenderElement> ImageInputType::createInputRenderer(RenderStyle&& style)
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{
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ASSERT(element());
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return createRenderer<RenderImage>(*element(), WTFMove(style));
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}
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void ImageInputType::attributeChanged(const QualifiedName& name)
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{
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if (name == altAttr) {
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if (auto* element = this->element()) {
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auto* renderer = element->renderer();
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if (is<RenderImage>(renderer))
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downcast<RenderImage>(*renderer).updateAltText();
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}
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} else if (name == srcAttr) {
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if (auto* element = this->element()) {
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if (element->renderer())
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element->ensureImageLoader().updateFromElementIgnoringPreviousError();
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}
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}
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BaseButtonInputType::attributeChanged(name);
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}
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void ImageInputType::attach()
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{
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BaseButtonInputType::attach();
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ASSERT(element());
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HTMLImageLoader& imageLoader = element()->ensureImageLoader();
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imageLoader.updateFromElement();
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auto* renderer = downcast<RenderImage>(element()->renderer());
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if (!renderer)
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return;
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if (imageLoader.hasPendingBeforeLoadEvent())
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return;
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auto& imageResource = renderer->imageResource();
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imageResource.setCachedImage(imageLoader.image());
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// If we have no image at all because we have no src attribute, set
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// image height and width for the alt text instead.
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if (!imageLoader.image() && !imageResource.cachedImage())
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renderer->setImageSizeForAltText();
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}
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bool ImageInputType::shouldRespectAlignAttribute()
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{
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return true;
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}
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bool ImageInputType::canBeSuccessfulSubmitButton()
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{
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return true;
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}
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bool ImageInputType::shouldRespectHeightAndWidthAttributes()
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{
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return true;
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}
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unsigned ImageInputType::height() const
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{
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ASSERT(element());
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Ref<HTMLInputElement> element(*this->element());
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element->document().updateLayout();
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if (auto* renderer = element->renderer())
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return adjustForAbsoluteZoom(downcast<RenderBox>(*renderer).contentHeight(), *renderer);
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// Check the attribute first for an explicit pixel value.
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if (auto optionalHeight = parseHTMLNonNegativeInteger(element->attributeWithoutSynchronization(heightAttr)))
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return optionalHeight.value();
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// If the image is available, use its height.
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auto* imageLoader = element->imageLoader();
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if (imageLoader && imageLoader->image())
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return imageLoader->image()->imageSizeForRenderer(element->renderer(), 1).height().toUnsigned();
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return 0;
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}
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unsigned ImageInputType::width() const
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{
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ASSERT(element());
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Ref<HTMLInputElement> element(*this->element());
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element->document().updateLayout();
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if (auto* renderer = element->renderer())
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return adjustForAbsoluteZoom(downcast<RenderBox>(*renderer).contentWidth(), *renderer);
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// Check the attribute first for an explicit pixel value.
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if (auto optionalWidth = parseHTMLNonNegativeInteger(element->attributeWithoutSynchronization(widthAttr)))
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return optionalWidth.value();
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// If the image is available, use its width.
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auto* imageLoader = element->imageLoader();
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if (imageLoader && imageLoader->image())
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return imageLoader->image()->imageSizeForRenderer(element->renderer(), 1).width().toUnsigned();
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return 0;
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}
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String ImageInputType::resultForDialogSubmit() const
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{
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return makeString(m_clickLocation.x(), ',', m_clickLocation.y());
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}
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} // namespace WebCore
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