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AngleSharp

, 3 Jul 2013 BSD
Bringing the DOM to C# with a HTML5/CSS3 parser written in C#.
Demo.zip
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
Settings.settings
ViewModels
Source.zip
Documents
using AngleSharp.Css;
using System;

namespace AngleSharp.DOM.Css
{
    /// <summary>
    /// Represents an @keyframes rule.
    /// </summary>
    [DOM("CSSKeyframesRule")]
    public sealed class CSSKeyframesRule : CSSRule
    {
        #region Constants

        internal const String RuleName = "keyframes";

        #endregion

        #region Members

        CSSRuleList _cssRules;
        String _name;

        #endregion

        #region ctor

        /// <summary>
        /// Creates a new @keyframes rule.
        /// </summary>
        internal CSSKeyframesRule()
        {
            _cssRules = new CSSRuleList();
            _type = CssRule.Keyframes;
        }

        #endregion

        #region Properties

        /// <summary>
        /// Gets or sets the name of the animation, used by the animation-name property.
        /// </summary>
        [DOM("name")]
        public String Name
        {
            get { return _name; }
            set { _name = value; }
        }

        /// <summary>
        /// Gets a CSSRuleList of the CSS rules in the media rule.
        /// </summary>
        [DOM("cssRules")]
        public CSSRuleList CssRules
        {
            get { return _cssRules; }
        }

        #endregion

        #region Methods

        /// <summary>
        /// Inserts a new keyframe rule into the current CSSKeyframesRule.
        /// </summary>
        /// <param name="rule">A string containing a keyframe in the same format as an entry of a @keyframes at-rule.</param>
        /// <returns>The current @keyframes rule.</returns>
        [DOM("appendRule")]
        public CSSKeyframesRule AppendRule(String rule)
        {
            var obj = CssParser.ParseKeyframeRule(rule);
            obj.ParentStyleSheet = _parent;
            obj.ParentRule = this;
            _cssRules.InsertAt(_cssRules.Length, obj);
            return this;
        }

        /// <summary>
        /// Deletes a keyframe rule from the current CSSKeyframesRule. 
        /// </summary>
        /// <param name="key">The index of the keyframe to be deleted, expressed as a string resolving as a number between 0 and 1.</param>
        /// <returns>The current @keyframes rule.</returns>
        [DOM("deleteRule")]
        public CSSKeyframesRule DeleteRule(String key)
        {
            for (int i = 0; i < _cssRules.Length; i++)
            {
                if ((_cssRules[i] as CSSKeyframeRule).KeyText.Equals(key, StringComparison.OrdinalIgnoreCase))
                {
                    _cssRules.RemoveAt(i);
                    break;
                }
            }

            return this;
        }

        /// <summary>
        /// Returns a keyframe rule corresponding to the given key.
        /// </summary>
        /// <param name="key">A string containing an index of the keyframe to be returned, resolving to a number between 0 and 1.</param>
        /// <returns>The keyframe or null.</returns>
        [DOM("findRule")]
        public CSSKeyframeRule FindRule(String key)
        {
            for (int i = 0; i < _cssRules.Length; i++)
            {
                var rule = _cssRules[i] as CSSKeyframeRule;

                if (rule.KeyText.Equals(key, StringComparison.OrdinalIgnoreCase))
                    return rule;
            }

            return null;
        }

        #endregion

        #region String representation

        /// <summary>
        /// Returns a CSS code representation of the rule.
        /// </summary>
        /// <returns>A string that contains the code.</returns>
        public override String ToCss()
        {
            return String.Format("@keyframes {0} {{{1}{2}}}", _name, Environment.NewLine, _cssRules.ToCss());
        }

        #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
Chief Technology Officer
Germany Germany
Florian is from Regensburg, 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.
 
Florian is also giving lectures in C#, HTML5 with CSS3 and JavaScript, and other topics. Having graduated from University with a Master's degree in theoretical physics he is currently busy doing his PhD in the field of High Performance Computing.
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