2020-01-18 11:38:21 +03:00
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/*
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2022-03-10 16:02:25 +03:00
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* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
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2020-01-18 11:38:21 +03:00
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*
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2021-04-22 11:24:48 +03:00
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* SPDX-License-Identifier: BSD-2-Clause
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2020-01-18 11:38:21 +03:00
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*/
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2022-04-09 10:28:38 +03:00
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#include <LibGfx/Font/FontDatabase.h>
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2021-11-18 17:01:28 +03:00
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#include <LibWeb/HTML/BrowsingContext.h>
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2020-11-22 17:53:01 +03:00
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#include <LibWeb/Layout/ImageBox.h>
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2022-03-10 16:02:25 +03:00
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#include <LibWeb/Painting/ImagePaintable.h>
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2019-10-05 23:07:45 +03:00
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2020-11-22 17:53:01 +03:00
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namespace Web::Layout {
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2020-03-07 12:27:02 +03:00
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2022-04-01 20:58:27 +03:00
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ImageBox::ImageBox(DOM::Document& document, DOM::Element& element, NonnullRefPtr<CSS::StyleProperties> style, ImageLoader const& image_loader)
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2020-11-22 17:53:01 +03:00
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: ReplacedBox(document, element, move(style))
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2020-06-13 23:22:54 +03:00
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, m_image_loader(image_loader)
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2019-10-05 23:07:45 +03:00
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{
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2021-05-30 13:36:53 +03:00
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browsing_context().register_viewport_client(*this);
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2019-10-05 23:07:45 +03:00
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}
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2020-11-22 17:53:01 +03:00
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ImageBox::~ImageBox()
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2019-10-05 23:07:45 +03:00
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{
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2021-05-30 13:36:53 +03:00
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browsing_context().unregister_viewport_client(*this);
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2019-10-05 23:07:45 +03:00
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}
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2020-11-22 17:53:01 +03:00
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int ImageBox::preferred_width() const
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2020-06-13 23:22:54 +03:00
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{
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2020-11-22 16:46:36 +03:00
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return dom_node().attribute(HTML::AttributeNames::width).to_int().value_or(m_image_loader.width());
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2020-06-13 23:22:54 +03:00
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}
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2020-11-22 17:53:01 +03:00
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int ImageBox::preferred_height() const
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2020-06-13 23:22:54 +03:00
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{
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2020-11-22 16:46:36 +03:00
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return dom_node().attribute(HTML::AttributeNames::height).to_int().value_or(m_image_loader.height());
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2020-06-13 23:22:54 +03:00
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}
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2020-11-22 17:53:01 +03:00
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void ImageBox::prepare_for_replaced_layout()
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2019-10-05 23:07:45 +03:00
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{
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2020-08-12 14:47:55 +03:00
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if (!m_image_loader.has_loaded_or_failed()) {
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set_intrinsic_width(0);
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set_intrinsic_height(0);
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2020-07-22 02:36:07 +03:00
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} else {
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2020-08-12 14:47:55 +03:00
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if (m_image_loader.width()) {
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set_intrinsic_width(m_image_loader.width());
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}
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if (m_image_loader.height()) {
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set_intrinsic_height(m_image_loader.height());
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}
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if (m_image_loader.width() && m_image_loader.height()) {
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2021-10-14 19:48:49 +03:00
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set_intrinsic_aspect_ratio((float)m_image_loader.width() / (float)m_image_loader.height());
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2020-08-12 14:47:55 +03:00
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} else {
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set_intrinsic_aspect_ratio({});
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2020-08-12 14:47:55 +03:00
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}
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2020-07-22 02:36:07 +03:00
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}
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if (renders_as_alt_text()) {
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2021-06-24 20:53:42 +03:00
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auto& image_element = verify_cast<HTML::HTMLImageElement>(dom_node());
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2020-12-29 20:25:13 +03:00
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auto& font = Gfx::FontDatabase::default_font();
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2020-06-13 23:22:54 +03:00
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auto alt = image_element.alt();
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2019-10-06 15:13:54 +03:00
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if (alt.is_empty())
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2020-06-13 23:22:54 +03:00
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alt = image_element.src();
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2021-11-03 12:25:01 +03:00
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set_intrinsic_width(font.width(alt) + 16);
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2022-03-27 02:58:52 +03:00
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set_intrinsic_height(font.pixel_size() + 16);
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2020-07-22 02:36:07 +03:00
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}
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if (!has_intrinsic_width() && !has_intrinsic_height()) {
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2022-03-10 01:53:41 +03:00
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// FIXME: Do something.
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2019-10-06 00:20:35 +03:00
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}
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2019-10-05 23:07:45 +03:00
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}
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2020-11-22 17:53:01 +03:00
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bool ImageBox::renders_as_alt_text() const
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2019-10-06 00:20:35 +03:00
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{
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2020-11-22 16:46:36 +03:00
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if (is<HTML::HTMLImageElement>(dom_node()))
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2020-06-22 22:41:10 +03:00
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return !m_image_loader.has_image();
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2020-06-13 23:22:54 +03:00
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return false;
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2019-10-06 00:20:35 +03:00
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}
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2020-03-07 12:27:02 +03:00
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2021-09-08 12:12:22 +03:00
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void ImageBox::browsing_context_did_set_viewport_rect(Gfx::IntRect const& viewport_rect)
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2020-06-14 20:32:23 +03:00
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{
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2022-04-10 21:16:09 +03:00
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m_image_loader.set_visible_in_viewport(paint_box() && viewport_rect.to_type<float>().intersects(paint_box()->absolute_rect()));
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2020-06-14 20:32:23 +03:00
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}
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2022-03-11 00:38:08 +03:00
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RefPtr<Painting::Paintable> ImageBox::create_paintable() const
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2022-03-10 16:02:25 +03:00
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{
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return Painting::ImagePaintable::create(*this);
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}
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2020-03-07 12:27:02 +03:00
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}
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