在 GeckoFX 中添加功能 [英] adding functions in GeckoFX
问题描述
我正在 C# Winform 中制作类似 Steam 的程序启动器，而对于 UI，我正在使用 HTML 和 Gecko
我想知道是否可以添加我自己的 javascript 或 onclick() 函数并将其连接到我的 Windows Form C# 应用程序中例如，我需要在按钮 (HTML) 中添加一个函数来激活 c# 中启动程序的函数(它是一个获取应用程序名称并启动该应用程序的函数).
I am making an steam like program launcher in C# Winform and for UI I'm using HTML and Gecko
I am wondering if it is possible to add my own javascript or onclick() function and wire that in my Windows Form C# app
for example, I need to add a function in button (HTML) to activate function in c# that launches a program (it's a function that gets app name and launches that app).
推荐答案
这个 示例 展示了从 JavaScript 到 C# 通信的两种不同方式.
This example shows two different ways one can communicate from javascript to C#.
- 第一种方法是使用(哈顿方法)消息泵.
- 第二种方式是使用javascript改变当前文档的
location，使用C#来处理和取消导航.
- The first way is by using the (Hatton method) message pump.
- the second way is by using javascript to change
locationof the current document and using C# to handle and cancel the navigation.
示例 HTML:
<html>
<body>
</body>
<script type='text/javascript'>
/* Begin (Hatton) method of communicating from javascript to C# */
alert('javascript : about call message C# (Hatton) method');
event = document.createEvent('MessageEvent');
var origin = window.location.protocol + '//' + window.location.host;
event.initMessageEvent ('callMe', true, true, 'some data', origin, 1234, window, null);
document.dispatchEvent (event);
alert('javascript : message sent to C# (Hatton) method');
/* End (Hatton) method of communicating from javascript to C# */
/* Begin javascript changing location.href method */
alert('javascript : about call message C# location changed method');
location.href='http://somehost//someevent.php?somedata';
alert('javascript : message sent to C# location changed method');
/* End javascript changing location.href method */
</script>
</html>
示例.cs 代码:
using System;
using System.IO;
using System.Windows.Forms;
using Gecko;
namespace Example6
{
static class Example6
{
private static GeckoWebBrowser _browser;
[STAThread]
static void Main()
{
// Don't use XULRunnerLocator.GetXULRunnerLocation() in production software.
string firefox14Path = XULRunnerLocator.GetXULRunnerLocation();
Xpcom.Initialize(firefox14Path);
var form = new Form();
_browser = new GeckoWebBrowser { Dock = DockStyle.Fill };
_browser.Navigating += InstallCustomEventListener;
_browser.Navigating += ListenForFakeNavigationMessages;
_browser.Navigate("file://" + Path.Combine(Environment.CurrentDirectory, "Example6.html"));
form.Controls.Add(_browser);
Application.Run(form);
}
#region Hatton method
static void InstallCustomEventListener(object sender, GeckoNavigatingEventArgs e)
{
_browser.Navigating -= InstallCustomEventListener;
_browser.AddMessageEventListener("callMe", ((string p) =>
MessageBox.Show(String.Format("C# : Got Message '{0}' from javascript", p))));
}
#endregion
#region location changed method
static void ListenForFakeNavigationMessages(object sender, GeckoNavigatingEventArgs e)
{
const string id = "http://somehost//someevent.php?";
var uri = e.Uri.AbsoluteUri;
if (uri.Contains(id))
{
MessageBox.Show(String.Format("C# : Got Message '{0}' from javascscript", uri.Substring(id.Length)));
// This is a fake navigating event - cancel it.
e.Cancel = true;
}
}
#endregion
}
}
另请参阅示例 4
这篇关于在 GeckoFX 中添加功能的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
