public void Print(string html)
{
Window.Current.Content = ViewToPrint;
ViewToPrint.NavigateToString(html);
if (PrintDoc != null)
{
printDoc.GetPreviewPage -= PrintDoc_GetPreviewPage;
printDoc.Paginate -= PrintDoc_Paginate;
printDoc.AddPages -= PrintDoc_AddPages;
}
printDoc = new PrintDocument();
try
{
printDoc.GetPreviewPage += PrintDoc_GetPreviewPage;
printDoc.Paginate += PrintDoc_Paginate;
printDoc.AddPages += PrintDoc_AddPages;
var showprint = PrintManager.ShowPrintUIAsync();
}
catch (Exception e)
{
Debug.WriteLine(e.ToString());
}
PrintDoc = null;
GC.Collect();
}
#pragma warning disable CS1998
/// <summary>
/// Converts HTML to PNG
/// </summary>
/// <param name="html">HTML.</param>
/// <param name="fileName">File name.</param>
/// <param name="onComplete">On complete.</param>
public async void ToPng(string html, string fileName, Action <string> onComplete)
{
var rootPageRenderer = (Xamarin.Forms.Platform.UWP.PageRenderer)Platform.GetRenderer(Forms9Patch.RootPage._instance);
var size = new Size(8.5, 11);
var webView = new Windows.UI.Xaml.Controls.WebView
{
DefaultBackgroundColor = Windows.UI.Colors.White,
Width = (size.Width - 0.5) * 72 / 2,
Height = 10, // (size.Height - 0.5) * 72,
};
/*
* var transform = new TranslateTransform();
* transform.TransformPoint(new Windows.Foundation.Point(0, 0));
* webView.RenderTransform = transform;
*/
rootPageRenderer.Children.Add(webView);
webView.Visibility = Visibility.Visible;
webView.SetValue(PngFileNameProperty, fileName);
webView.SetValue(OnCompleteProperty, onComplete);
webView.SetValue(HtmlStringProperty, html);
webView.NavigationCompleted += NavigationCompleteA;
webView.NavigationFailed += WebView_NavigationFailed;
webView.NavigateToString(html);
}
public async Task<string> GetSchedule(string user)
{
StringBuilder sb = new StringBuilder();
try
{
UnityDataAccess uda = new UnityDataAccess();
// string sToken = await uda.GetToken(objUnityData.UnitySvcUser, objUnityData.UnitySvcPwd, user);
string strDate = DateTime.Now.ToString(@"MM/dd/yyyy");
string sJson = await uda.Magic("GetSchedule", objUnityData.UnityAppUser, objUnityData.UnityAppName, "", objUnityData.Token, strDate, "", "", "", "", "", "");
return sJson;
}
catch (Exception ex)
{
WebView wc = new WebView();
wc.NavigateToString(ex.Message);
Window.Current.Content = wc;
return "";
}
}
private static void OnHTMLTextChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
Windows.UI.Xaml.Controls.WebView wv = obj as Windows.UI.Xaml.Controls.WebView;
if (wv != null)
{
wv.NavigateToString((string)args.NewValue);
}
}
void Reload()
{
if (View.Url?.Contains(":") == true)
{
Result.Navigate(GetUri());
}
else
{
Result.NavigateToString(View.GetExecutableHtml().OrEmpty());
}
}
public override async Task Init()
{
_webView = new WebView
{
Name = "PrintWebView" + (instanceCount++).ToString("D3"),
DefaultBackgroundColor = Windows.UI.Colors.White,
Visibility = Visibility.Visible,
};
RootPanel.Children.Insert(0, _webView);
PrintContent = _webView;
_webView.NavigationCompleted += _webView_NavigationCompleted;;
if (_sourceWebView != null)
{
var contentSize = await _sourceWebView.WebViewContentSizeAsync();
_webView.Width = contentSize.Width;
_webView.Height = contentSize.Height;
Html = await _sourceWebView.GetHtml();
_webView.NavigateToString(Html);
}
else if (!string.IsNullOrWhiteSpace(Html))
{
_webView.Width = 96 * 8;
_webView.Height = 96 * 10.5;
var baseTag = $"<base href=\"{BaseUrl}\"></base>";
string htmlWithBaseTag;
var internalWebView = new Windows.UI.Xaml.Controls.WebView();
internalWebView.NavigationCompleted += async(sender, args) =>
{
var script = BaseInsertionScript.Replace("baseTag", baseTag);
await sender.InvokeScriptAsync("eval", new[] { script });
htmlWithBaseTag = await sender.InvokeScriptAsync("eval", new[] { "document.documentElement.outerHTML;" });
_webView.NavigateToString(!string.IsNullOrEmpty(htmlWithBaseTag) ? htmlWithBaseTag : Html);
};
internalWebView.NavigateToString(Html);
}
else if (!string.IsNullOrWhiteSpace(Url))
{
_webView.Width = 96 * 8;
_webView.Height = 96 * 10.5;
Uri uri = new Uri(Url, UriKind.RelativeOrAbsolute);
if (!uri.IsAbsoluteUri)
{
uri = new Uri(LocalScheme + Url, UriKind.RelativeOrAbsolute);
}
_webView.Source = uri;
}
}
private async void NavigationCompleteA(Windows.UI.Xaml.Controls.WebView webView, WebViewNavigationCompletedEventArgs args)
{
var contentSize = await webView.WebViewContentSizeAsync();
webView.NavigationCompleted -= NavigationCompleteA;
System.Diagnostics.Debug.WriteLine("A contentSize=[" + contentSize + "]");
System.Diagnostics.Debug.WriteLine("A webView.Size=[" + webView.Width + "," + webView.Height + "]");
webView.Width = contentSize.Width;
webView.Height = contentSize.Height;
webView.UpdateLayout();
webView.NavigationCompleted += NavigationCompleteB;
var html = (string)webView.GetValue(HtmlStringProperty);
webView.NavigateToString(html);
}
public async Task<string> GetSchedule(string user)
{
StringBuilder sb = new StringBuilder();
try
{
string strDate = DateTime.Now.ToString(@"MM/dd/yyyy");
string sJson = await UnityDataService.Magic(UnityDataAccessActions.GetSchedule, UnityDataService.UnityAppUser, UnityDataService.UnityAppName, "", UnityDataService.Token, strDate, "", "", "", "", "", "");
return sJson;
}
catch (Exception ex)
{
WebView wc = new WebView();
wc.NavigateToString(ex.Message);
Window.Current.Content = wc;
return "";
}
}
private static Task<string> GetUserAgent()
{
var tcs = new TaskCompletionSource<string>();
WebView webView = new WebView();
string htmlFragment =
@"<html>
<head>
<script type='text/javascript'>
function GetUserAgent()
{
return navigator.userAgent;
}
</script>
</head>
</html>";
webView.NavigationCompleted += async (sender, e) =>
{
try
{
//Invoke the javascript when the html load is complete
string result = await webView.InvokeScriptAsync("GetUserAgent", null);
//Set the task result
tcs.TrySetResult(result);
}
catch (Exception ex)
{
tcs.TrySetException(ex);
}
};
//Load Html
webView.NavigateToString(htmlFragment);
return tcs.Task;
}
/// <summary>
/// Установить агент.
/// </summary>
/// <returns>Агент.</returns>
public async Task SetDefaultBrowserAgent()
{
var tcs = new TaskCompletionSource<string>(TaskCreationOptions.None);
var ww = new WebView();
ww.NavigateToString(@"<html>
<head>
<script type='text/javascript'>
function getUserAgent()
{
return navigator.userAgent;
}
</script>
</head>
<body>
</body>
</html>");
ww.NavigationCompleted += async (sender1, e1) =>
{
try
{
var ua = await ww.InvokeScriptAsync("getUserAgent", new string[0]);
tcs.TrySetResult(ua);
}
catch (Exception ex)
{
tcs.TrySetException(ex);
}
};
var task = tcs.Task;
var tua = await task;
BrowserUserAgent = tua;
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="wv"></param>
public ChatBoxTool(WebView wv)
{
_chat_box = wv;
_chat_box.NavigateToString(_bastChatHtml);
}
public static void SetHtml(WebView webView, string html)
{
webView.NavigateToString(html);
}
private void GetUserAgent()
{
// Only get user agent if running on UI thread
if (CoreWindow.GetForCurrentThread() != null)
{
var dispatcher = CoreWindow.GetForCurrentThread().Dispatcher;
dispatcher.RunAsync(CoreDispatcherPriority.Normal, delegate()
{
// Create a new WebView and get user agent
WebView wv = new WebView();
wv.Visibility = Visibility.Collapsed;
wv.ScriptNotify += new NotifyEventHandler(UserAgentScriptNotify);
string html =
"<html><head><script type='text/javascript'>function GetUserAgent() {" +
"window.external.notify(navigator.userAgent);}" +
"</script></head>" +
"<body onload='GetUserAgent();'></body></html>";
wv.NavigateToString(html);
});
}
}
private void LoadWebContent(WebView browser, Item selectedItem)
{
#if WINDOWS_APP
if (AppSettings.MaximizeYoutubeVideos)
{
var youtubeLink = Regex.Match(selectedItem.Description, @"(https?:)?//w*\.?youtube.com/watch[^'\""<>]+").Value;
if (youtubeLink.Length > 0)
{
//Youtube videos get full screen
browser.Navigate(new Uri(youtubeLink));
return;
}
}
#endif
var bc = AppSettings.BackgroundColorOfDescription[0] == '#' ? AppSettings.BackgroundColorOfDescription : FetchBackgroundColor();
var fc = AppSettings.FontColorOfDescription[0] == '#' ? AppSettings.FontColorOfDescription : FetchFontColor();
string scriptOptions = string.Empty;
string disableHyperLinksJS = "<script type='text/javascript'>window.onload = function() { var anchors = document.getElementsByTagName(\"a\"); for (var i = 0; i < anchors.length; i++) { anchors[i].onclick = function() {return(false);}; }};</script>";
string disableOpeningHyperLinksInNewTabJS = "<script type='text/javascript'>window.onload = function() { var anchors = document.getElementsByTagName(\"a\"); for (var i = 0; i < anchors.length; i++) { anchors[i].target = \"_self\"; }};</script>";
string launchPhoneCallJS = @"<script type='text/javascript'> function callOutToCSharp(stringParameter){window.external.notify(stringParameter.toLocaleString());} window.onload = function() { var regex = /((\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4})/, replacement = '<input type=""button"" value=""$1"" onclick=""callOutToCSharp(\'launchPhoneCall:$1\');"" />'; function replaceText(el) { if (el.nodeType === 3) { if (regex.test(el.data)) { var temp_div = document.createElement('div'); temp_div.innerHTML = el.data.replace(regex, replacement); var nodes = temp_div.childNodes; while (nodes[0]) { el.parentNode.insertBefore(nodes[0],el); } el.parentNode.removeChild(el); } } else if (el.nodeType === 1) { for (var i = 0; i < el.childNodes.length; i++) { replaceText(el.childNodes[i]); } }} replaceText(document.body); } </script>";
if (AppSettings.DisableHyperLinksInItemDescriptionView)
scriptOptions = scriptOptions + disableHyperLinksJS;
if (AppSettings.DisableOpeningHyperLinksInNewTab)
scriptOptions = scriptOptions + disableOpeningHyperLinksInNewTabJS;
#if WINDOWS_PHONE_APP
if (AppSettings.EnableParsingPhoneNumbersPhone8X)
scriptOptions = scriptOptions + launchPhoneCallJS;
#endif
var webcontent = "<!doctype html><HTML>" +
"<HEAD>" +
"<meta name=\"viewport\" content=\"width=320, user-scrollable=no\" />"
+
scriptOptions
+
"<style type='text/css'>a img {border: 0;}</style>" +
"</HEAD>" +
"<BODY style=\"background-color:" + bc + ";color:" + fc + ";-ms-touch-action: pan-y;" + "\">" +
selectedItem.Description +
"</BODY>" +
"</HTML>";
browser.NavigateToString(webcontent);
}
