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ladybird/Userland/Libraries/LibWeb/HTML/HTMLBRElement.cpp

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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/*
LibWeb: Let <br> elements have style At the very least, we need to respect `<br style="display: none">`
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* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
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* SPDX-License-Identifier: BSD-2-Clause
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
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*/
LibWeb: Let <br> elements have style At the very least, we need to respect `<br style="display: none">`
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#include <LibWeb/DOM/Document.h>
LibWeb: Move HTML object model stuff into LibWeb/HTML/ Take a hint from SVG and more all the HTML classes into HTML instead of mixing them with the DOM classes.
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#include <LibWeb/HTML/HTMLBRElement.h>
LibWeb: Rename LayoutNode classes and move them into Layout namespace Bring the names of various boxes closer to spec language. This should hopefully make things easier to understand and hack on. :^) Some notable changes: - LayoutNode -> Layout::Node - LayoutBox -> Layout::Box - LayoutBlock -> Layout::BlockBox - LayoutReplaced -> Layout::ReplacedBox - LayoutDocument -> Layout::InitialContainingBlockBox - LayoutText -> Layout::TextNode - LayoutInline -> Layout::InlineNode Note that this is not strictly a "box tree" as we also hang inline/text nodes in the same tree, and they don't generate boxes. (Instead, they contribute line box fragments to their containing block!)
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#include <LibWeb/Layout/BreakNode.h>
LibHTML: Implement the <br> element for line breaking The <br> element will produce a special LayoutBreak node in the layout tree, which forces a break in the line layout whenever encountered. This patch also makes LayoutBlock use the current line-height as the minimum effective height for each line box. This ensures that having multiple <br> elements in a row doesn't create 0-height line boxes.
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LibWeb: Move HTML classes into the Web::HTML namespace
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namespace Web::HTML {
LibWeb: Move everything into the Web namespace
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LibWeb: Move QualifiedName into the Web::DOM namespace
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HTMLBRElement::HTMLBRElement(DOM::Document& document, DOM::QualifiedName qualified_name)
LibWeb: Use move semantics for QualifiedName more often
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: HTMLElement(document, move(qualified_name))
LibHTML: Implement the <br> element for line breaking The <br> element will produce a special LayoutBreak node in the layout tree, which forces a break in the line layout whenever encountered. This patch also makes LayoutBlock use the current line-height as the minimum effective height for each line box. This ensures that having multiple <br> elements in a row doesn't create 0-height line boxes.
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{
}
Libraries: Use default constructors/destructors in LibWeb https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
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HTMLBRElement::~HTMLBRElement() = default;
LibHTML: Implement the <br> element for line breaking The <br> element will produce a special LayoutBreak node in the layout tree, which forces a break in the line layout whenever encountered. This patch also makes LayoutBlock use the current line-height as the minimum effective height for each line box. This ensures that having multiple <br> elements in a row doesn't create 0-height line boxes.
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LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
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JS::ThrowCompletionOr<void> HTMLBRElement::initialize(JS::Realm& realm)
LibWeb: Move setting of Web object prototypes to initialize() This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
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{
LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
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MUST_OR_THROW_OOM(Base::initialize(realm));
LibWeb: Move setting of Web object prototypes to initialize() This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
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set_prototype(&Bindings::ensure_web_prototype<Bindings::HTMLBRElementPrototype>(realm, "HTMLBRElement"));
LibJS+Everywhere: Allow Cell::initialize overrides to throw OOM errors Note that as of this commit, there aren't any such throwers, and the call site in Heap::allocate will drop exceptions on the floor. This commit only serves to change the declaration of the overrides, make sure they return an empty value, and to propagate OOM errors frm their base initialize invocations.
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return {};
LibWeb: Move setting of Web object prototypes to initialize() This needs to happen before prototype/constructor intitialization can be made lazy. Otherwise, GC could run during the C++ constructor and try to collect the object currently being created.
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}
LibWeb: Make the layout tree GC-allocated This removes a set of complex reference cycles between DOM, layout tree and browsing context. It also makes lifetimes much easier to reason about, as the DOM and layout trees are now free to keep each other alive.
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JS::GCPtr<Layout::Node> HTMLBRElement::create_layout_node(NonnullRefPtr<CSS::StyleProperties> style)
LibHTML: Implement the <br> element for line breaking The <br> element will produce a special LayoutBreak node in the layout tree, which forces a break in the line layout whenever encountered. This patch also makes LayoutBlock use the current line-height as the minimum effective height for each line box. This ensures that having multiple <br> elements in a row doesn't create 0-height line boxes.
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{
LibWeb: Make the layout tree GC-allocated This removes a set of complex reference cycles between DOM, layout tree and browsing context. It also makes lifetimes much easier to reason about, as the DOM and layout trees are now free to keep each other alive.
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return heap().allocate_without_realm<Layout::BreakNode>(document(), *this, move(style));
LibHTML: Implement the <br> element for line breaking The <br> element will produce a special LayoutBreak node in the layout tree, which forces a break in the line layout whenever encountered. This patch also makes LayoutBlock use the current line-height as the minimum effective height for each line box. This ensures that having multiple <br> elements in a row doesn't create 0-height line boxes.
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}
LibWeb: Move everything into the Web namespace
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}
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