嵌入在WPF中的浏览器不处理指针事件

时间:2014-05-20 00:32:33

标签: wpf winforms browser touch

我在Windows 7 WPF应用程序中托管WebBrowser控件。

现在我遇到了在此浏览器中运行的javascript的问题。 DOM pointer事件未触发。当我单击DOM对象时,mousedownclick事件会触发,但pointerdown事件不会触发,即使在Internet Explorer 11中查看同一页面时它也会触发。

如何激活DOM pointerdown事件?

以下是我在浏览器中看到的内容:

Browser image

这是我在WPF应用程序中看到的内容:

WPF Image

这是我正在测试的HTML文档:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=11">
    <script type="text/javascript" src="./scripts/jquery.min.js"></script>
    <title>Raw test page</title>
    <style type="text/css">
        #mouseTarget{
            border: 2px solid purple;
            background: steelblue;
            font-weight: bold;
            width: 300px;
            height: 100px;
        }
    </style>
</head>
<body>
    <div id="mouseTarget">Mouse Target</div>
    <div id="logOutput"></div>
    <script type="text/javascript">
        var logOutput = function (text) {
            $("<div></div>").text(text).appendTo($("#logOutput"));
        };
        var mouseTarget = document.getElementById('mouseTarget');
        mouseTarget.addEventListener('pointerdown', function () {
            logOutput('pointerdown event received');
        }, false);
        mouseTarget.addEventListener('mousedown', function () {
            logOutput('mousedown event received');
        }, false);
        mouseTarget.addEventListener('click', function () {
            logOutput('click event received');
        }, false);
    </script>
</body>
</html>

1 个答案:

答案 0 :(得分:1)

编辑:很抱歉,似乎设置不足以FIRE指针事件。它只是识别触摸事件,但仍然只触发鼠标事件。非常烦人......


问题是WebBrowser控件不像通常的IE实例那样。首先,它默认使用传统的后备IE7模式。其他要点是传统输入模型等等。

我个人有问题将browserMode设置为IE10但指针事件根本不起作用。问题是,WebBrowser控件假装支持我订阅的PointerEvents,但是由于启用了传统输入模型,这些并没有被解雇。

您可以在应用程序中为该应用程序动态设置这些策略:

private void SetBrowserCompatibilityMode()
    {
        // http://msdn.microsoft.com/en-us/library/ee330720(v=vs.85).aspx

        // FeatureControl settings are per-process
        var fileName = Path.GetFileName(Process.GetCurrentProcess().MainModule.FileName);

        if (String.Compare(fileName, "devenv.exe", true) == 0) // make sure we're not running inside Visual Studio
            return;

        using (var key = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_BROWSER_EMULATION",
            RegistryKeyPermissionCheck.ReadWriteSubTree))
        {
            // Webpages containing standards-based !DOCTYPE directives are displayed in IE10 Standards mode.
            UInt32 mode = 10000; // 10000; or 11000 if IE11 is explicitly supported as well
            key.SetValue(fileName, mode, RegistryValueKind.DWord);
        }

        using (var key = Registry.CurrentUser.CreateSubKey(@"Software\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_NINPUT_LEGACYMODE",
            RegistryKeyPermissionCheck.ReadWriteSubTree))
        {
            // disable Legacy Input Model
            UInt32 mode = 0;
            key.SetValue(fileName, mode, RegistryValueKind.DWord);
        }

    }

请参阅:C# WebBrowser PanningMode