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AngleSharp

, 3 Jul 2013 BSD
Bringing the DOM to C# with a HTML5/CSS3 parser written in C#.
AngleSharp
Css
Tokens
DOM
Collections
Css
Properties
Rules
Selector
Values
Enums
Exception
Html
Basic
Formatting
Forms
Frames
Head
Lists
Media
Objects
Semantic
Tables
Interfaces
Mathml
Objects
Svg
Various
Xml
Foundation
Attributes
Helpers
Mutations
Html
Tokens
Properties
Stream
Xml
Tokens
packages
ModernUI.WPF.1.0.4
lib
net40
FirstFloor.ModernUI.dll
Microsoft.Windows.Shell.dll
net45
FirstFloor.ModernUI.dll
ModernUI.WPF.1.0.4.nupkg
ModernUI.WPF.1.0.4.nuspec
OxyPlot.Core.2013.1.49.1
lib
portable-net4+sl4+wp71+win8
OxyPlot.dll
OxyPlot.Core.2013.1.49.1.nupkg
OxyPlot.Core.2013.1.49.1.nuspec
OxyPlot.Wpf.2013.1.49.1
lib
NET40
OxyPlot.Wpf.dll
OxyPlot.Xps.dll
NET45
OxyPlot.Wpf.dll
OxyPlot.Xps.dll
OxyPlot.Wpf.2013.1.49.1.nupkg
OxyPlot.Wpf.2013.1.49.1.nuspec
Samples
Logo.ico
Pages
Properties
ViewModels
Documents
using System;

namespace AngleSharp.DOM.Html
{
    /// <summary>
    /// Represents the HTML canvas element.
    /// </summary>
    public sealed class HTMLCanvasElement : HTMLElement
    {
        #region Constant

        /// <summary>
        /// The canvas tag.
        /// </summary>
        internal const string Tag = "canvas";

        #endregion

        #region ctor

        /// <summary>
        /// Creates a new HTML canvas element.
        /// </summary>
        internal HTMLCanvasElement()
        {
            _name = Tag;
        }

        #endregion

        #region Methods

        //TODO
        //http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#the-canvas-element

        //http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html

        /// <summary>
        /// Gets the drawing context.
        /// </summary>
        /// <param name="contextId">A context id like 2d.</param>
        /// <returns>An object that defines the drawing context.</returns>
        public RenderingContext GetContext(String contextId)
        {
            //TODO
            return null;
        }

        /// <summary>
        /// Gets an indicator if a context with the given parameters could be created.
        /// </summary>
        /// <param name="contextId">A context id like 2d.</param>
        /// <returns>True if the context is supported, otherwise false.</returns>
        public Boolean SupportsContext(String contextId)
        {
            //TODO
            return false;
        }

        /// <summary>
        /// Changes the context the element is related to the given one.
        /// </summary>
        /// <param name="context">The new context.</param>
        public void SetContext(RenderingContext context)
        {
            //TODO
        }

        /// <summary>
        /// Returns a Data URI with the bitmap data of the context.
        /// </summary>
        /// <param name="type">The type of image e.g image/png.</param>
        /// <returns>A data URI with the data if any.</returns>
        public String ToDataURL(String type = null)
        {
            //TODO
            return String.Empty;
        }

        /// <summary>
        /// Creates a BLOB out of the canvas pixel data and passes it
        /// to the given callback.
        /// </summary>
        /// <param name="callback">The callback function.</param>
        /// <param name="type">The type of object to create.</param>
        public void ToBlob(Action<Object> callback, String type = null)
        {
            //TODO
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets the displayed width of the canvas element.
        /// </summary>
        public UInt32 Width
        {
            get { return ToInteger(GetAttribute("width"), 300u); }
            set { SetAttribute("width", value.ToString()); }
        }

        /// <summary>
        /// Gets or sets the displayed height of the canvas element.
        /// </summary>
        public UInt32 Height
        {
            get { return ToInteger(GetAttribute("height"), 150u); }
            set { SetAttribute("height", value.ToString()); }
        }

        #endregion

        #region Internal properties

        /// <summary>
        /// Gets if the node is in the special category.
        /// </summary>
        protected internal override bool IsSpecial
        {
            get { return false; }
        }

        #endregion
    }
}

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License

This article, along with any associated source code and files, is licensed under The BSD License

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About the Author

Florian Rappl
Architect
Germany Germany
Florian lives in Munich, Germany. He started his programming career with Perl. After programming C/C++ for some years he discovered his favorite programming language C#. He did work at Siemens as a programmer until he decided to study Physics.

During his studies he worked as an IT consultant for various companies. After graduating with a PhD in theoretical particle Physics he is working as a senior technical consultant in the field of home automation and IoT.

Florian has been giving lectures in C#, HTML5 with CSS3 and JavaScript, software design, and other topics. He is regularly giving talks at user groups, conferences, and companies. He is actively contributing to open-source projects. Florian is the maintainer of AngleSharp, a completely managed browser engine.

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