Stowage/ladybird
2
0
Fork 0
mirror of https://github.com/LadybirdBrowser/ladybird.git synced 2025-10-25 18:34:14 +00:00
Code Issues Projects Releases Packages Wiki Activity
ladybird/Libraries/LibWeb/Layout/LayoutImage.h

63 lines
2.4 KiB
C
Raw Normal View History

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.
2020-01-18 09:38:21 +01:00
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDER 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.
*/
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
#pragma once
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.
2020-07-26 15:08:16 +02:00
#include <LibWeb/HTML/HTMLImageElement.h>
LibWeb: Rename directory LibHTML => LibWeb Let's rename this to LibWeb since it aims to provide more parts of the web platform than just HTML. :^)
2020-03-07 10:32:51 +01:00
#include <LibWeb/Layout/LayoutReplaced.h>
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
LibWeb: Move everything into the Web namespace
2020-03-07 10:27:02 +01:00
namespace Web {
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
class LayoutImage : public LayoutReplaced {
public:
LibWeb: Make layout tree have non-const pointers to the DOM Const pointers into the DOM was a nice idea, but in practice, there are too many situations where the layout tree wants to some non-const thing to the DOM.
2020-07-28 19:48:57 +02:00
LayoutImage(DOM::Document&, DOM::Element&, NonnullRefPtr<CSS::StyleProperties>, const ImageLoader&);
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
virtual ~LayoutImage() override;
LibWeb: Basic support for display:inline-block with width:auto We now implement the somewhat fuzzy shrink-to-fit algorithm when laying out inline-block elements with both block and inline children. Shrink-to-fit works by doing two speculative layouts of the entire subtree inside the current block, to compute two things: 1. Preferred minimum width: If we made a line break at every chance we had, how wide would the widest line be? 2. Preferred width: We break only when explicitly told to (e.g "<br>") How wide would the widest line be? We then shrink the width of the inline-block element to an appropriate value based on the above, taking the available width in the containing block into consideration (sans all the box model fluff.) To make the speculative layouts possible, plumb a LayoutMode enum throughout the layout system since it needs to be respected in various places. Note that this is quite hackish and I'm sure there are smarter ways to do a lot of this. But it does kinda work! :^)
2020-05-26 21:53:10 +02:00
virtual void layout(LayoutMode = LayoutMode::Default) override;
LibWeb: Rename LayoutNode::render() to paint() "Paint" matches what we call this in the rest of the system. Let's not confuse things by mixing paint/render/draw all the time. I'm guilty of this in more places.. Also rename RenderingContext => PaintContext.
2020-06-18 21:35:44 +02:00
virtual void paint(PaintContext&, PaintPhase) override;
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
LibWeb: Move DOM classes into the Web::DOM namespace LibWeb keeps growing and the Web namespace is filling up fast. Let's put DOM stuff into Web::DOM, just like we already started doing with SVG stuff in Web::SVG.
2020-07-26 19:37:56 +02:00
const DOM::Element& node() const { return static_cast<const DOM::Element&>(LayoutReplaced::node()); }
LibHTML: Implement basic layout for inline <img alt> LayoutReplaced objects can now participate in inline layout. It's very hackish, but basically LayoutReplaced will just add itself to the last line in the containing block. This patch gets rid of the idea that only LayoutInline subclasses can be split into lines, by moving the split_into_lines() virtual up to LayoutNode and overriding it in LayoutReplaced.
2019-10-05 23:20:35 +02:00
bool renders_as_alt_text() const;
LibWeb: Move "visible in viewport" state tracking to ImageLoader This should technically apply to any LayoutImage, so let's just move it to ImageLoader.
2020-06-14 19:32:23 +02:00
void set_visible_in_viewport(Badge<LayoutDocument>, bool);
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
private:
LibHTML: Implement basic layout for inline <img alt> LayoutReplaced objects can now participate in inline layout. It's very hackish, but basically LayoutReplaced will just add itself to the last line in the containing block. This patch gets rid of the idea that only LayoutInline subclasses can be split into lines, by moving the split_into_lines() virtual up to LayoutNode and overriding it in LayoutReplaced.
2019-10-05 23:20:35 +02:00
virtual const char* class_name() const override { return "LayoutImage"; }
LibHTML: Add LayoutNode::is_image() and is<LayoutImage> helper
2019-12-18 20:52:36 +01:00
virtual bool is_image() const override { return true; }
LibWeb: Split out image loading logic from HTMLImageElement Since more DOM nodes are going to want to load images (<object>, ...) this patch splits out the image loading logic into an ImageLoader class and then HTMLImageElement simply has an ImageLoader. LayoutImage is then given a const ImageLoader& at construction and can then provide layout and rendering for many kinds of DOM nodes.
2020-06-13 22:22:54 +02:00
int preferred_width() const;
int preferred_height() const;
const ImageLoader& m_image_loader;
LibHTML: Flesh out <img> element with LayoutImage and LayoutReplaced This patch adds parsing of <img> into HTMLImageElement objects. It also adds LayoutImage and its parent class LayoutReplaced, which is going to represent CSS "replaced elements."
2019-10-05 22:07:45 +02:00
};
LibHTML: Add LayoutNode::is_image() and is<LayoutImage> helper
2019-12-18 20:52:36 +01:00
}
LibWeb: Move everything into the Web namespace
2020-03-07 10:27:02 +01:00
LibWeb: Switch to using AK::is and AK::downcast
2020-07-26 17:16:18 +02:00
AK_BEGIN_TYPE_TRAITS(Web::LayoutImage)
static bool is_type(const Web::LayoutNode& layout_node) { return layout_node.is_image(); }
AK_END_TYPE_TRAITS()
Reference in a new issue Copy permalink