Best Puppeteer-sharp code snippet using PuppeteerSharp.MediaFeatureValue
Page.cs
Source: Page.cs
...754 /// ]]>755 /// </code>756 /// </example>757 /// <returns>Emulate features task</returns>758 public Task EmulateMediaFeaturesAsync(IEnumerable<MediaFeatureValue> features)759 => Client.SendAsync("Emulation.setEmulatedMedia", new EmulationSetEmulatedMediaFeatureRequest { Features = features });760 /// <summary>761 /// Sets the viewport.762 /// In the case of multiple pages in a single browser, each page can have its own viewport size.763 /// <see cref="SetViewportAsync(ViewPortOptions)"/> will resize the page. A lot of websites don't expect phones to change size, so you should set the viewport before navigating to the page.764 /// </summary>765 /// <example>766 ///<![CDATA[767 /// using(var page = await browser.NewPageAsync())768 /// {769 /// await page.SetViewPortAsync(new ViewPortOptions770 /// {771 /// Width = 640, 772 /// Height = 480, ...
EmulateMediaFeaturesTests.cs
Source: EmulateMediaFeaturesTests.cs
...12 }13 [Fact]14 public async Task ShouldWork()15 {16 await Page.EmulateMediaFeaturesAsync(new MediaFeatureValue[] {17 new MediaFeatureValue { MediaFeature = MediaFeature.PrefersReducedMotion, Value = "reduce" },18 });19 Assert.True(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-reduced-motion: reduce)').matches"));20 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-reduced-motion: no-preference)').matches"));21 await Page.EmulateMediaFeaturesAsync(new MediaFeatureValue[] {22 new MediaFeatureValue { MediaFeature = MediaFeature.PrefersColorScheme, Value = "light" },23 });24 Assert.True(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));25 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));26 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: no-preference)').matches"));27 await Page.EmulateMediaFeaturesAsync(new MediaFeatureValue[] {28 new MediaFeatureValue { MediaFeature = MediaFeature.PrefersColorScheme, Value = "dark" },29 });30 Assert.True(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));31 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));32 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: no-preference)').matches"));33 await Page.EmulateMediaFeaturesAsync(new MediaFeatureValue[] {34 new MediaFeatureValue { MediaFeature = MediaFeature.PrefersReducedMotion, Value = "reduce" },35 new MediaFeatureValue { MediaFeature = MediaFeature.PrefersColorScheme, Value = "light" },36 });37 Assert.True(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-reduced-motion: reduce)').matches"));38 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-reduced-motion: no-preference)').matches"));39 Assert.True(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));40 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));41 Assert.False(await Page.EvaluateFunctionAsync<bool>("() => matchMedia('(prefers-color-scheme: no-preference)').matches"));42 }43 }44}...
MediaFeature.cs
Source: MediaFeature.cs
...3using Newtonsoft.Json.Converters;4namespace PuppeteerSharp5{6 /// <summary>7 /// Meadia Feature. See <see cref="Page.EmulateMediaFeaturesAsync(System.Collections.Generic.IEnumerable{MediaFeatureValue})"/>8 /// </summary>9 [JsonConverter(typeof(StringEnumConverter))]10 public enum MediaFeature11 {12 /// <summary>13 /// prefers-color-scheme media feature.14 /// </summary>15 [EnumMember(Value = "prefers-color-scheme")]16 PrefersColorScheme,17 /// <summary>18 /// prefers-reduced-motion media feature.19 /// </summary>20 [EnumMember(Value = "prefers-reduced-motion")]21 PrefersReducedMotion...
MediaFeatureValue.cs
Source: MediaFeatureValue.cs
1using Newtonsoft.Json;2namespace PuppeteerSharp3{4 /// <summary>5 /// Media Feature. <see cref="Page.EmulateMediaFeaturesAsync(System.Collections.Generic.IEnumerable{MediaFeatureValue})"/>6 /// </summary>7 public class MediaFeatureValue8 {9 /// <summary>10 /// The CSS media feature name. Supported names are `'prefers-colors-scheme'` and `'prefers-reduced-motion'`.11 /// </summary>12 [JsonProperty(PropertyName = "name")]13 public MediaFeature MediaFeature { get; set; }14 /// <summary>15 /// The value for the given CSS media feature.16 /// </summary>17 public string Value { get; set; }18 }19}...
EmulationSetEmulatedMediaFeatureRequest.cs
...4namespace PuppeteerSharp.Messaging5{6 internal class EmulationSetEmulatedMediaFeatureRequest7 {8 public IEnumerable<MediaFeatureValue> Features { get; set; }9 }10}...
MediaFeatureValue
Using AI Code Generation
1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3 Args = new string[] { "--start-maximized" }4});5var page = await browser.NewPageAsync();6var mediaFeatureValue = await page.EvaluateFunctionHandleAsync(@"(feature) => {7 return window.matchMedia(feature).matches;8}", "screen and (max-width: 600px)");9var value = await mediaFeatureValue.JsonValueAsync();10Console.WriteLine(value);11await browser.CloseAsync();12var browser = await Puppeteer.LaunchAsync(new LaunchOptions13{14 Args = new string[] { "--start-maximized" }15});16var page = await browser.NewPageAsync();17var mediaFeatureValue = await page.EvaluateFunctionHandleAsync(@"(feature) => {18 return window.matchMedia(feature).matches;19}", "screen and (max-width: 600px)");20var value = await mediaFeatureValue.JsonValueAsync();21Console.WriteLine(value);22await browser.CloseAsync();23var browser = await Puppeteer.LaunchAsync(new LaunchOptions24{25 Args = new string[] { "--start-maximized" }26});27var page = await browser.NewPageAsync();28var mediaFeatureValue = await page.EvaluateFunctionHandleAsync(@"(feature) => {29 return window.matchMedia(feature).matches;30}", "screen and (max-width: 600px)");31var value = await mediaFeatureValue.JsonValueAsync();32Console.WriteLine(value);33await browser.CloseAsync();34var browser = await Puppeteer.LaunchAsync(new LaunchOptions35{36 Args = new string[] { "--start-maximized" }37});38var page = await browser.NewPageAsync();39var mediaFeatureValue = await page.EvaluateFunctionHandleAsync(@"(feature) => {
MediaFeatureValue
Using AI Code Generation
1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });2var page = await browser.NewPageAsync();3var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => window.matchMedia('(prefers-color-scheme: dark)').matches");4Console.WriteLine(mediaFeatureValue.Matches);5await browser.CloseAsync();6var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });7var page = await browser.NewPageAsync();8var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => window.matchMedia('(prefers-color-scheme: dark)').media");9Console.WriteLine(mediaFeatureValue.Media);10await browser.CloseAsync();11var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });12var page = await browser.NewPageAsync();13var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => window.matchMedia('(prefers-color-scheme: dark)').media");14Console.WriteLine(mediaFeatureValue.Media);15await browser.CloseAsync();16var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });17var page = await browser.NewPageAsync();18var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => window.matchMedia('(prefers-color-scheme: dark)')");19Console.WriteLine(mediaFeatureValue);20await browser.CloseAsync();21var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });22var page = await browser.NewPageAsync();23var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => window.matchMedia('(prefers-color-scheme: dark)')");24Console.WriteLine(mediaFeatureValue);25await browser.CloseAsync();
MediaFeatureValue
Using AI Code Generation
1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 var task = RunAsync();9 task.Wait();10 }11 static async Task RunAsync()12 {13 var browser = await Puppeteer.LaunchAsync(new LaunchOptions14 {15 });16 var page = await browser.NewPageAsync();17 await page.WaitForSelectorAsync("input[title='Search']");18 await page.TypeAsync("input[title='Search']", "puppeteer");19 await page.Keyboard.PressAsync("Enter");20 await page.WaitForNavigationAsync();21 await page.ScreenshotAsync("screenshot.png");22 var media = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => matchMedia('screen and (min-width: 640px)').matches");23 Console.WriteLine(media);24 await browser.CloseAsync();25 }26 }27}28var media = await page.EvaluateFunctionAsync<MediaFeatureValue>("() => matchMedia('screen and (min-width: 640px)').matches");29 at PuppeteerSharp.Helpers.JsonHelper.ToObject[T](String json)30 at PuppeteerSharp.Page.EvaluateFunctionAsync[T](String pageFunction, Object[] args)31 at PuppeteerSharp_Console.Program.RunAsync() in C:\Users\gurneet.kaur\source\repos\PuppeteerSharp_Console\PuppeteerSharp_Console\Program.cs:line 3632 at PuppeteerSharp_Console.Program.Main(String[] args) in C:\Users\gurneet.kaur\source\repos\PuppeteerSharp_Console\PuppeteerSharp_Console\Program.cs:line 10
MediaFeatureValue
Using AI Code Generation
1var options = new LaunchOptions { Headless = true };2var browser = await Puppeteer.LaunchAsync(options);3var page = await browser.NewPageAsync();4var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("window.matchMedia(\"(prefers-color-scheme: dark)\")");5Console.WriteLine(mediaFeatureValue.Features["prefers-color-scheme"]);6await browser.CloseAsync();7var options = new LaunchOptions { Headless = true };8var browser = await Puppeteer.LaunchAsync(options);9var page = await browser.NewPageAsync();10var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("window.matchMedia(\"(prefers-color-scheme: dark)\")");11Console.WriteLine(mediaFeatureValue.Features["prefers-color-scheme"]);12await browser.CloseAsync();13var options = new LaunchOptions { Headless = true };14var browser = await Puppeteer.LaunchAsync(options);15var page = await browser.NewPageAsync();16var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("window.matchMedia(\"(prefers-color-scheme: dark)\")");17Console.WriteLine(mediaFeatureValue.Features["prefers-color-scheme"]);18await browser.CloseAsync();19var options = new LaunchOptions { Headless = true };20var browser = await Puppeteer.LaunchAsync(options);21var page = await browser.NewPageAsync();22var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("window.matchMedia(\"(prefers-color-scheme: dark)\")");23Console.WriteLine(mediaFeatureValue.Features["prefers-color-scheme"]);24await browser.CloseAsync();25var options = new LaunchOptions { Headless = true };26var browser = await Puppeteer.LaunchAsync(options);27var page = await browser.NewPageAsync();
MediaFeatureValue
Using AI Code Generation
1var browserFetcher = new BrowserFetcher();2await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision),6 Args = new string[] { "--start-maximized" }7});8var page = await browser.NewPageAsync();9await page.SetViewportAsync(new ViewPortOptions { Width = 1920, Height = 1080 });10var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("(feature) => window.matchMedia(feature).matches", "(max-width: 1000px)");11if (mediaFeatureValue.Value)12{13 Assert.Pass();14}15{16 Assert.Fail();17}18var browserFetcher = new BrowserFetcher();19await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);20var browser = await Puppeteer.LaunchAsync(new LaunchOptions21{22 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision),23 Args = new string[] { "--start-maximized" }24});25var page = await browser.NewPageAsync();26await page.SetViewportAsync(new ViewPortOptions { Width = 1920, Height = 1080 });27var mediaFeatureValue = await page.EvaluateFunctionAsync<MediaFeatureValue>("(feature) => window.matchMedia(feature).matches", "(min-width: 1000px)");28if (mediaFeatureValue.Value)29{30 Assert.Pass();31}32{33 Assert.Fail();34}
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You can close the page using CloseAsync:
var page = browser.NewPageAsync();
////
await page.CloseAsync();
An using
block will also close the page:
using (var page = await new browser.PageAsync())
{
///
}
Puppeteer-Sharp v2.0.3+ also supports await using
blocks
await using (var page = await new browser.PageAsync())
{
///
}
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