AngleSharp.Css 1.0.0-alpha-99

.NET 6.0 .NET Standard 2.0 .NET Framework 4.6.1
This is a prerelease version of AngleSharp.Css.
dotnet add package AngleSharp.Css --version 1.0.0-alpha-99
NuGet\Install-Package AngleSharp.Css -Version 1.0.0-alpha-99
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="AngleSharp.Css" Version="1.0.0-alpha-99" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add AngleSharp.Css --version 1.0.0-alpha-99
#r "nuget: AngleSharp.Css, 1.0.0-alpha-99"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install AngleSharp.Css as a Cake Addin
#addin nuget:?package=AngleSharp.Css&version=1.0.0-alpha-99&prerelease

// Install AngleSharp.Css as a Cake Tool
#tool nuget:?package=AngleSharp.Css&version=1.0.0-alpha-99&prerelease

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AngleSharp.Css

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AngleSharp.Css extends the core AngleSharp library with some more powerful CSS capabilities. This repository is the home of the source for the AngleSharp.Css NuGet package.

Basic Configuration

If you just want a configuration that works (as close as possible to real browsers) you should use the following code:

var config = Configuration.Default
    .WithCss(); // from AngleSharp.Css

This will register a parser for CSS related content. The CSS parsing options and more could be set with parameters of the WithCss method. Alternatively, all the (desired) parts may be registered individually as well. That mostly boils down to three elementary parts:

  • A CSS parser (implementing the ICssParser interface, e.g., CssParser)
  • A factory for creating CSS declarations (IDeclarationFactory)
  • The styling service that can handle CSS documents, see CssStylingService

For an interactive DOM (i.e., to handle style attribute changes in the HTML document) an observer needs to be registered as well.

Furthermore, for some CSSOM features (e.g., media queries) a render device is required.

var config = Configuration.Default
    .WithCss()
    .WithRenderDevice(new DefaultRenderDevice
    {
        DeviceHeight = 768,
        DeviceWidth = 1024,
    });

If no specific IRenderDevice (e.g., via creating an DefaultRenderDevice object) instance is created a default implementation will be set.

Going a bit further it is possible to Render the current document. This render tree information can then be used to retrieve or other information, e.g.,

var tree = document.DefaultView.Render();
var node = tree.Find(document.QuerySelector("div"));
await node.DownloadResources();

The previous snippet renders the current document. Afterwards it retrieves a particular render tree node, which is related to the first found div. Then all (CSS introduced) resources are downloaded for the node, if visible.

Advantages of AngleSharp.Css

The core library already contains the CSS selector parser and the most basic classes and interfaces for dealing with the CSSOM. AngleSharp.Css brings the following advantages and use cases to life:

  • Correct identification of edge cases
  • A live CSSOM model, i.e., callbacks and everything
  • Computing the styling of certain elements
  • Cascades of stylesheets
  • Validation (and property-based exposure) of CSS declarations
  • Responsive design considerations
  • Full access to the value with different converters

The main idea behind AngleSharp.Css is to expose the CSSOM as it would be in the browser (and potentially beyond, i.e., useful for being used by editors). Originally, most of the code found here was embedded in the AngleSharp.Core library, however, due to the overhead for HTML use cases it was decided to transfer the code into its own repository.

Features

  • Feature validators (e.g., for @supports)
  • Document functions (e.g., for domain)
  • Pseudo elements (e.g., ::before)
  • Declarations (e.g., display) incl. knowledge of their values
  • Dynamic DOM coupling (i.e., to react to style attribute changes)
  • CSS custom properties (also known as CSS variables) with extensibility
  • Media queries and all other commonly implemented rules
  • Calculated values (i.e., calc(20px + 50%))
  • Window-based declaration calculations, see window.GetComputedStyle

Participating

Participation in the project is highly welcome. For this project the same rules as for the AngleSharp core project may be applied.

If you have any question, concern, or spot an issue then please report it before opening a pull request. An initial discussion is appreciated regardless of the nature of the problem.

Live discussions can take place in our Gitter chat, which supports using GitHub accounts.

This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community.

For more information see the .NET Foundation Code of Conduct.

.NET Foundation

This project is supported by the .NET Foundation.

License

The MIT License (MIT)

Copyright (c) 2016 - 2022 AngleSharp

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 is compatible.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 is compatible.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 is compatible.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (30)

Showing the top 5 NuGet packages that depend on AngleSharp.Css:

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Omnia.Fx

Package Description

bunit.web The ID prefix of this package has been reserved for one of the owners of this package by NuGet.org.

bUnit.web is the web specific parts of bUnit, that enables you to easily test and verify the output of Blazor (web) component.

AngleSharp.Diffing

Provides a complete diffing model of HTML.

PnP.Framework

PnP Framework contains the PnP Provisioning engine and a ton of extension methods that will make you more productive while developing for Microsoft 365.

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Version Downloads Last updated
1.0.0-alpha-99 15,403 6/18/2023
1.0.0-alpha-98 467 6/18/2023
1.0.0-alpha-97 538 6/15/2023
0.17.0 4,485,229 1/15/2023
0.17.0-alpha-87 475 1/15/2023
0.17.0-alpha-86 488 1/15/2023
0.17.0-alpha-80 1,637 11/1/2022
0.17.0-alpha-78 20,645 6/2/2022
0.17.0-alpha-77 520 6/2/2022
0.17.0-alpha-76 492 6/1/2022
0.17.0-alpha-75 501 5/31/2022
0.16.4 8,538,806 2/15/2022
0.16.4-alpha-72 521 2/15/2022
0.16.4-alpha-68 723 2/10/2022
0.16.3 913,021 1/6/2022
0.16.3-alpha-65 531 1/6/2022
0.16.2 492,331 11/5/2021
0.16.2-alpha-62 1,808 11/26/2021
0.16.2-alpha-61 3,391 11/25/2021
0.16.2-alpha-60 3,434 11/25/2021
0.16.2-alpha-42 3,487 11/25/2021
0.16.2-alpha-35 574 11/6/2021
0.16.2-alpha-30 540 11/5/2021
0.16.2-alpha-29 611 11/4/2021
0.16.2-alpha-28 562 11/4/2021
0.16.1 3,321,684 8/10/2021
0.16.1-alpha-27 572 11/4/2021
0.16.1-alpha-24 586 8/10/2021
0.16.0 587,521 6/12/2021
0.16.0-alpha-23 600 6/30/2021
0.16.0-alpha-19 669 6/12/2021
0.15.1 6,795 6/12/2021
0.15.1-alpha-13 566 6/12/2021
0.15.1-alpha-11 69,789 5/10/2021
0.15.0 2,286,626 4/23/2021
0.15.0-alpha-7 580 4/23/2021
0.14.3-alpha-5 649 4/22/2021
0.14.3-alpha-4 601 4/22/2021
0.14.3-alpha-166 45,514 12/11/2020
0.14.3-alpha-165 5,640 6/23/2020
0.14.2 8,291,672 6/11/2020
0.14.2-alpha-163 766 6/11/2020
0.14.2-alpha-162 818 6/11/2020
0.14.1 3,131,665 5/4/2020
0.14.1-alpha-161 814 6/11/2020
0.14.0 569,611 4/8/2020
0.14.0-alpha-160 797 5/22/2020
0.14.0-alpha-154 913 4/6/2020
0.14.0-alpha-152 840 4/6/2020
0.14.0-alpha-149 943 4/4/2020
0.14.0-alpha-147 816 4/4/2020
0.14.0-alpha-145 855 4/4/2020
0.14.0-alpha-143 882 4/4/2020
0.14.0-alpha-139 979 3/31/2020
0.14.0-alpha-138 870 3/30/2020
0.13.0 592,910 9/6/2019
0.13.0-alpha-135 1,104 2/1/2020
0.13.0-alpha-131 833 9/6/2019
0.13.0-alpha-123 914 8/23/2019
0.13.0-alpha-121 877 8/23/2019
0.13.0-alpha-119 984 6/9/2019
0.13.0-alpha-117 839 5/28/2019
0.13.0-alpha-116 903 5/24/2019
0.13.0-alpha-115 908 5/20/2019
0.13.0-alpha-114 895 5/18/2019
0.13.0-alpha-113 926 5/18/2019
0.12.1 68,089 5/14/2019
0.12.0 1,165 5/12/2019
0.10.0 45,978 1/5/2019