DisplayInfoAsync(OneNote.Window owner, string text)
{
const MessageBoxIcon Icon = MessageBoxIcon.Information;
var parent = new Win32Window(owner);
await DisplayAsync(parent, text, Icon).ConfigureAwait(false);
}
/// <summary>
/// 用于显示窗体的方法
/// </summary>
/// <param name="control"> 表示传递给每个功能区用户界面 (UI) 控件的
/// 回调过程的对象. </param>
public void ShowForm(IRibbonControl control)
{
OneNote.Window context = control.Context as OneNote.Window;
CWin32WindowWrapper owner =
new CWin32WindowWrapper((IntPtr)context.WindowHandle);
TestForm form = new TestForm(applicationObject as OneNote.Application);
form.ShowDialog(owner);
form.Dispose();
form = null;
context = null;
owner = null;
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
}
public async void CreateNewPage(object sender, EventArgs e)
{
var settings = sender as IPageSettingsModel;
if (settings == null)
{
return;
}
int retryCount = 0, retryLimit = 4;
Func <OneNote.Window, string[], Task> modalDisplay = null;
OneNote.Window modalOwner = null;
string[] modalText = null;
var delay = TimeSpan.FromMilliseconds(250);
for (; ;) // BEGIN Retry pattern
{
try
{
await CreateNewPageAsync(settings).ConfigureAwait(false);
break;
}
catch (Exception ex)
{
modalOwner = Application.Windows.CurrentWindow;
if (Utils.ExceptionHandler.IsTransientError(ex))
{
if (++retryCount > retryLimit)
{
Utils.ExceptionHandler.HandleException(ex);
modalDisplay =
Utils.WinHelper.DisplayWarningAsync;
modalText = new[] {
"OneNote is busy.",
"Please try again in a moment."
};
break;
}
}
else
{
Utils.ExceptionHandler.HandleException(ex);
modalDisplay = Utils.WinHelper.DisplayErrorAsync;
modalText = new[] {
"OneNote API Error",
Utils.ExceptionHandler.FormatHResult(ex.HResult)
};
break;
}
}/* end catch */
Tracer.WriteWarnLine("Transient error, sleeping {0} ms . . .",
delay.Milliseconds);
await Task.Delay(delay).ConfigureAwait(false);
}// *END* Retry pattern
if (modalDisplay != null)
{
await modalDisplay(modalOwner, modalText).ConfigureAwait(false);
}
}
DisplayInfoAsync(OneNote.Window owner, string[] text)
{
var multiLineText = string.Join(Environment.NewLine, text);
await DisplayInfoAsync(owner, multiLineText).ConfigureAwait(false);
}
internal Win32Window(OneNote.Window context)
: this((IntPtr)context.WindowHandle)
{
}
/// <summary>
/// Find the OneNote main window from the given window context.
/// </summary>
/// <param name="context">Window context; typically an IRibbonControl reference.</param>
/// <returns>The window wrapper.</returns>
/// <remarks>
/// Call with
/// <![CDATA[
/// var owner = UIHelper.GetOwner((IRibbonControl)control.Context as Window);
/// ]]>
/// </remarks>
public static Win32WindowHandle GetOwner(One.Window context)
{
return(new Win32WindowHandle(Native.GetParent(Native.GetParent((IntPtr)context.WindowHandle))));
}
public async void CreateNewPage(object sender, EventArgs e)
{
var settings = sender as IPageSettingsModel;
if (settings == null)
{
return;
}
int retryCount = 0, retryLimit = 5;
Func <OneNote.Window, string[], Task> modalDisplay = null;
OneNote.Window modalOwner = null;
string[] modalText = null;
var latencyFactor = (StorageAccount.IsDefault) ? 1 : 10;
var delay = TimeSpan.FromMilliseconds(500 * latencyFactor);
var stopwatch = Stopwatch.StartNew();
for (; ;) // BEGIN Retry pattern
{
try
{
await CreateNewPageTask(settings).ConfigureAwait(false);
break;
}
catch (Exception ex)
{
modalOwner = Application.Windows.CurrentWindow;
if (Utils.ExceptionHandler.IsTransientError(ex))
{
if (++retryCount > retryLimit)
{
Utils.ExceptionHandler.HandleException(ex);
modalDisplay =
Utils.WinHelper.DisplayWarningAsync;
modalText = new[] {
"OneNote is busy.",
"Please try again in a moment."
};
break;
}
}
else
{
Utils.ExceptionHandler.HandleException(ex);
var errorMessage = new List <string>
{
"OneNote API Error",
Utils.ExceptionHandler.FormatHResult(ex.HResult)
};
if (App.IsErrorCode(ex.HResult))
{
errorMessage.Add(App.ErrorCodeTable[ex.HResult]);
}
modalDisplay = Utils.WinHelper.DisplayErrorAsync;
modalText = errorMessage.ToArray();
break;
}
}/* end catch */
Tracer.WriteWarnLine("Transient error, sleeping {0} ms . . .",
delay.TotalMilliseconds);
await Task.Delay(delay).ConfigureAwait(false);
}// *END* Retry pattern
stopwatch.Stop();
if (modalDisplay != null)
{
await modalDisplay(modalOwner, modalText).ConfigureAwait(false);
}
else
{
Tracer.WriteInfoLine("CreateNewPage elapsed time: {0} ms",
stopwatch.ElapsedMilliseconds.ToString("N0"));
}
}