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https://github.com/RGBCube/serenity
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LibWeb: Use HashMap::try_ensure_capacity in StyleComputer
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parent
6debd967ba
commit
eacfcac932
7 changed files with 53 additions and 33 deletions
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@ -6,6 +6,7 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Error.h>
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#include <AK/Optional.h>
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#include <AK/TemporaryChange.h>
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#include <LibWeb/DOM/Document.h>
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@ -147,12 +148,12 @@ void TreeBuilder::insert_node_into_inline_or_block_ancestor(Layout::Node& node,
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}
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}
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void TreeBuilder::create_pseudo_element_if_needed(DOM::Element& element, CSS::Selector::PseudoElement pseudo_element, AppendOrPrepend mode)
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ErrorOr<void> TreeBuilder::create_pseudo_element_if_needed(DOM::Element& element, CSS::Selector::PseudoElement pseudo_element, AppendOrPrepend mode)
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{
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auto& document = element.document();
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auto& style_computer = document.style_computer();
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auto pseudo_element_style = style_computer.compute_style(element, pseudo_element);
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auto pseudo_element_style = TRY(style_computer.compute_style(element, pseudo_element));
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auto pseudo_element_content = pseudo_element_style->content();
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auto pseudo_element_display = pseudo_element_style->display();
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// ::before and ::after only exist if they have content. `content: normal` computes to `none` for them.
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@ -160,11 +161,11 @@ void TreeBuilder::create_pseudo_element_if_needed(DOM::Element& element, CSS::Se
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if (pseudo_element_display.is_none()
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|| pseudo_element_content.type == CSS::ContentData::Type::Normal
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|| pseudo_element_content.type == CSS::ContentData::Type::None)
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return;
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return {};
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auto pseudo_element_node = DOM::Element::create_layout_node_for_display_type(document, pseudo_element_display, pseudo_element_style, nullptr);
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if (!pseudo_element_node)
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return;
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return {};
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pseudo_element_node->set_generated(true);
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// FIXME: Handle images, and multiple values
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@ -181,20 +182,22 @@ void TreeBuilder::create_pseudo_element_if_needed(DOM::Element& element, CSS::Se
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element.set_pseudo_element_node({}, pseudo_element, pseudo_element_node);
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insert_node_into_inline_or_block_ancestor(*pseudo_element_node, pseudo_element_display, mode);
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return {};
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}
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void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context& context)
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ErrorOr<void> TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context& context)
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{
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// If the parent doesn't have a layout node, we don't need one either.
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if (dom_node.parent_or_shadow_host() && !dom_node.parent_or_shadow_host()->layout_node())
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return;
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return {};
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Optional<TemporaryChange<bool>> has_svg_root_change;
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if (dom_node.is_svg_container()) {
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has_svg_root_change.emplace(context.has_svg_root, true);
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} else if (dom_node.requires_svg_container() && !context.has_svg_root) {
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return;
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return {};
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}
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auto& document = dom_node.document();
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@ -210,7 +213,7 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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style = element.computed_css_values();
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display = style->display();
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if (display.is_none())
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return;
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return {};
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layout_node = element.create_layout_node(*style);
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} else if (is<DOM::Document>(dom_node)) {
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style = style_computer.create_document_style();
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@ -225,7 +228,7 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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}
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if (!layout_node)
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return;
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return {};
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if (!dom_node.parent_or_shadow_host()) {
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m_layout_root = layout_node;
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@ -240,10 +243,11 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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if ((dom_node.has_children() || shadow_root) && layout_node->can_have_children()) {
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push_parent(verify_cast<NodeWithStyle>(*layout_node));
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if (shadow_root)
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create_layout_tree(*shadow_root, context);
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verify_cast<DOM::ParentNode>(dom_node).for_each_child([&](auto& dom_child) {
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create_layout_tree(dom_child, context);
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});
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TRY(create_layout_tree(*shadow_root, context));
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// This is the same as verify_cast<DOM::ParentNode>(dom_node).for_each_child
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for (auto* node = verify_cast<DOM::ParentNode>(dom_node).first_child(); node; node = node->next_sibling())
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TRY(create_layout_tree(*node, context));
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pop_parent();
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}
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@ -251,15 +255,15 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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if (is<DOM::Element>(dom_node)) {
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auto& element = static_cast<DOM::Element&>(dom_node);
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push_parent(verify_cast<NodeWithStyle>(*layout_node));
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create_pseudo_element_if_needed(element, CSS::Selector::PseudoElement::Before, AppendOrPrepend::Prepend);
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create_pseudo_element_if_needed(element, CSS::Selector::PseudoElement::After, AppendOrPrepend::Append);
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TRY(create_pseudo_element_if_needed(element, CSS::Selector::PseudoElement::Before, AppendOrPrepend::Prepend));
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TRY(create_pseudo_element_if_needed(element, CSS::Selector::PseudoElement::After, AppendOrPrepend::Append));
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pop_parent();
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}
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if (is<ListItemBox>(*layout_node)) {
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auto& element = static_cast<DOM::Element&>(dom_node);
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int child_index = layout_node->parent()->index_of_child<ListItemBox>(*layout_node).value();
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auto marker_style = style_computer.compute_style(element, CSS::Selector::PseudoElement::Marker);
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auto marker_style = TRY(style_computer.compute_style(element, CSS::Selector::PseudoElement::Marker));
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auto list_item_marker = document.heap().allocate_without_realm<ListItemMarkerBox>(document, layout_node->computed_values().list_style_type(), child_index + 1, *marker_style);
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static_cast<ListItemBox&>(*layout_node).set_marker(list_item_marker);
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element.set_pseudo_element_node({}, CSS::Selector::PseudoElement::Marker, list_item_marker);
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@ -269,9 +273,9 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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if (is<HTML::HTMLProgressElement>(dom_node)) {
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auto& progress = static_cast<HTML::HTMLProgressElement&>(dom_node);
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if (!progress.using_system_appearance()) {
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auto bar_style = style_computer.compute_style(progress, CSS::Selector::PseudoElement::ProgressBar);
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auto bar_style = TRY(style_computer.compute_style(progress, CSS::Selector::PseudoElement::ProgressBar));
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bar_style->set_property(CSS::PropertyID::Display, CSS::IdentifierStyleValue::create(CSS::ValueID::InlineBlock));
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auto value_style = style_computer.compute_style(progress, CSS::Selector::PseudoElement::ProgressValue);
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auto value_style = TRY(style_computer.compute_style(progress, CSS::Selector::PseudoElement::ProgressValue));
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value_style->set_property(CSS::PropertyID::Display, CSS::IdentifierStyleValue::create(CSS::ValueID::Block));
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auto position = progress.position();
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value_style->set_property(CSS::PropertyID::Width, CSS::PercentageStyleValue::create(CSS::Percentage(position >= 0 ? round_to<int>(100 * position) : 0)));
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@ -294,7 +298,7 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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auto& input_element = static_cast<HTML::HTMLInputElement&>(dom_node);
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if (auto placeholder_value = input_element.placeholder_value(); placeholder_value.has_value()) {
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auto placeholder_style = style_computer.compute_style(input_element, CSS::Selector::PseudoElement::Placeholder);
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auto placeholder_style = TRY(style_computer.compute_style(input_element, CSS::Selector::PseudoElement::Placeholder));
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auto placeholder = DOM::Element::create_layout_node_for_display_type(document, placeholder_style->display(), placeholder_style, nullptr);
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auto* text = document.heap().allocate<DOM::Text>(document.realm(), document, *placeholder_value);
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@ -311,6 +315,8 @@ void TreeBuilder::create_layout_tree(DOM::Node& dom_node, TreeBuilder::Context&
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input_element.set_pseudo_element_node({}, CSS::Selector::PseudoElement::Placeholder, placeholder);
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}
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}
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return {};
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}
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JS::GCPtr<Layout::Node> TreeBuilder::build(DOM::Node& dom_node)
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@ -318,7 +324,7 @@ JS::GCPtr<Layout::Node> TreeBuilder::build(DOM::Node& dom_node)
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VERIFY(dom_node.is_document());
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Context context;
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create_layout_tree(dom_node, context);
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MUST(create_layout_tree(dom_node, context)); // FIXME propagate errors
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if (auto* root = dom_node.document().layout_node())
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fixup_tables(*root);
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