public async Task Navigate(Type targetPage, IViewModel bindingContext)
{
IViewPage page = (IViewPage)Activator.CreateInstance(targetPage);
page.ViewModel = bindingContext;
await Application.Current.MainPage.Navigation.PushAsync((Page)page, true);
}
/// <summary>
/// 加载内容
/// </summary>
/// <param name="uri"></param>
/// <returns></returns>
protected virtual IViewPage LoadContent(Link link)
{
IModule vPageModule = this.Module.ModuleFramework.GetModule(link.ModuleName);
string vPageAssemblyName = this.CheckAndTrimEndExtension(vPageModule.MainAssemblyName, ".dll");
Uri vPageUri = new Uri(string.Format("/{0};Component/Pages/{1}", vPageAssemblyName, link.ViewPageLocation), System.UriKind.Relative);
IViewPage vPage = Application.LoadComponent(vPageUri) as IViewPage;
vPage.Module = this.Module;
return(vPage);
}
private void ViewPageBox_ViewPageChanged(ViewPageBox vPageBox, Link nLink, IViewPage vPage)
{
MainViewModuleViewModel mvmvm = this.DataContext as MainViewModuleViewModel;
foreach (LinkGroupViewModel lgvm in mvmvm.LinkGroupViewModels)
{
LinkViewModel selectLinkViewModel = lgvm.LinkViewModels.FirstOrDefault(lvm => lvm.ModuleName == nLink.ModuleName && lvm.ViewPageLocation == nLink.ViewPageLocation);
if (selectLinkViewModel != null)
{
this.SelectedLink = selectLinkViewModel;
break;
}
}
}
private void SetContent(Link nLink, IViewPage vPageModule)
{
vPageModule.ViewPageBox = this;
if (this.OnViewPageChanging != null)
{
this.OnViewPageChanging(this, vPageModule);
}
this.Content = vPageModule;
if (this.OnViewPageChanged != null)
{
this.OnViewPageChanged(this, nLink, vPageModule);
}
SetValue(IsViewPageLoadingPropertyKey, false);
}
public void QueuePageToCompile(IViewPage pageToCompile)
{
waiter.Reset();
compilePages.Enqueue(pageToCompile);
}
public void QueuePageToCompile(IViewPage pageToCompile)
{
compilePages.Enqueue(pageToCompile);
}
public void QueuePageToCompile(IViewPage pageToCompile)
{
compilePages.Enqueue(pageToCompile);
}
// --------------------------------------------------------------------------------------------------------------------
/// <summary>
/// Allows setting the 'Page' property using chained calls.
/// </summary>
public static T SetPage <T>(this T component, IViewPage page) where T : IWebViewComponent
{
component.Page = page; return((T)component);
}
/// <summary>
/// 当显示器里面link发生变化的时候执行
/// </summary>
/// <param name="oldLink"></param>
/// <param name="newLink"></param>
private void OnSourceChanged(Link oldLink, Link newLink)
{
if (newLink != null && newLink == oldLink)
{
return;
}
//启动加载界面
SetValue(IsViewPageLoadingPropertyKey, true);
//关闭前面没有结束的线程
if (this._cancellationTokenSource != null)
{
this._cancellationTokenSource.Cancel();
this._cancellationTokenSource = null;
}
IViewPage newViewPage = null;
if (newLink != null)
{
if (!this._viewModuleCache.TryGetValue(newLink, out newViewPage))
{
this._cancellationTokenSource = new CancellationTokenSource();
this.ContentLoader.Module = this.ModuleFramework.GetModule(newLink.ModuleName);//设置加载当前所用的模块
TaskScheduler scheduler = TaskScheduler.FromCurrentSynchronizationContext();
Task <IViewPage> task = this.ContentLoader.LoadContentAsync(newLink, this._cancellationTokenSource.Token);
task.ContinueWith(t =>
{
try
{
if (t.IsCanceled || this._cancellationTokenSource.IsCancellationRequested)
{
Debug.WriteLine("Cancelled navigation to '{0}'", newLink);
if (this._linkStack.Peek() == newLink && this.DisplayLink != this._linkStack.Peek())
{
this._linkStack.Pop();
}
}
else if (!t.IsFaulted && t.IsCompleted)
{
IViewPage viewModule = t.Result as IViewPage;
if (viewModule.Parameters == null)
{
viewModule.Parameters = new Dictionary <string, object>();
}
if (newLink.Parameters != null && newLink.Parameters.Count > 0)
{
foreach (string keyName in newLink.Parameters.Keys)
{
viewModule.Parameters.Add(keyName, newLink.Parameters[keyName]);
}
newLink.Parameters.Clear();
}
if (viewModule.Cached)
{
this._viewModuleCache[newLink] = viewModule;
}
if (this._linkStacked && viewModule.Stacked)
{
this._linkStack.Push(newLink);
}
SetContent(newLink, viewModule);
if (this.OnViewFailure != null)
{
this.OnViewFailure(this, newLink, oldLink);
}
}
}
catch (Exception ex)
{
if (this.OnViewFailure != null)
{
this.OnViewFailure(this, newLink, oldLink);
}
}
finally
{
this._cancellationTokenSource.Dispose();
this._cancellationTokenSource = null;
}
}, scheduler);
}
else
{
SetContent(newLink, newViewPage);
}
}
}
public IViewPage Push(IViewPage view)
{
Views.Push(view); return(view);
}
