private async void Group_DragEnter(object sender, DragEventArgs e)
{
FrameworkElement senderElement = sender as FrameworkElement;
DebugHelper.Assert(senderElement != null);
IDatabaseGroupViewModel groupVm = senderElement.DataContext as IDatabaseGroupViewModel;
DebugHelper.Assert(groupVm != null);
IKeePassGroup thisGroup = groupVm.Node as IKeePassGroup;
DebugHelper.Assert(thisGroup != null);
DragOperationDeferral deferral = e.GetDeferral();
string text = await e.DataView.GetTextAsync();
if (!String.IsNullOrWhiteSpace(text) && thisGroup.CanAdopt(text))
{
e.AcceptedOperation = DataPackageOperation.Move;
e.Handled = true;
}
deferral.Complete();
}
/// <summary>
/// Handler for DragEnter events on breadcrumbs. Updates the AcceptedOperation
/// property of <paramref name="e"/> based on the drop target.
/// </summary>
/// <param name="sender">The element receiving the DragEnter event.</param>
/// <param name="e">DragEventArgs for the drag.</param>
private async void Breadcrumb_DragEnter(object sender, DragEventArgs e)
{
// Get the group we are currently over...
FrameworkElement senderElement = sender as FrameworkElement;
DebugHelper.Assert(senderElement != null);
Breadcrumb thisBreadcrumb = senderElement.DataContext as Breadcrumb;
DebugHelper.Assert(thisBreadcrumb != null);
IKeePassGroup thisGroup = thisBreadcrumb.Group;
DebugHelper.Assert(thisGroup != null);
// Update the DataPackageOperation of the drag event based on whether
// we are dragging a node over a group (generally, yes).
DragOperationDeferral deferral = e.GetDeferral();
string text = await e.DataView.GetTextAsync();
if (!String.IsNullOrWhiteSpace(text) && thisGroup.CanAdopt(text))
{
e.AcceptedOperation = DataPackageOperation.Move;
e.Handled = true;
}
deferral.Complete();
}
private async void Group_Drop(object sender, DragEventArgs e)
{
FrameworkElement senderElement = sender as FrameworkElement;
DebugHelper.Assert(senderElement != null);
IDatabaseGroupViewModel groupVm = senderElement.DataContext as IDatabaseGroupViewModel;
DebugHelper.Assert(groupVm != null);
IKeePassGroup thisGroup = groupVm.Node as IKeePassGroup;
DebugHelper.Assert(thisGroup != null);
DragOperationDeferral deferral = e.GetDeferral();
string encodedUuid = await e.DataView.GetTextAsync();
if (thisGroup.TryAdopt(encodedUuid))
{
DebugHelper.Trace($"Successfully moved node {encodedUuid} to new parent {thisGroup.Uuid.EncodedValue}");
e.AcceptedOperation = DataPackageOperation.Move;
}
else
{
DebugHelper.Trace($"WARNING: Unable to locate dropped node {encodedUuid}");
e.AcceptedOperation = DataPackageOperation.None;
}
e.Handled = true;
deferral.Complete();
}
private async void UserControl_Drop(object sender, DragEventArgs e)
{
if (e.DataView.Contains(StandardDataFormats.Text) == false)
{
return;
}
// We need to take a Deferral as we won't be able to confirm the end of the operation synchronously.
DragOperationDeferral def = e.GetDeferral();
string unique_id = await e.DataView.GetTextAsync(StandardDataFormats.Text) as string;
if (unique_id == null)
{
throw new Exception("TabbedFrame drop operation failed. Did not receive a unique ID.");
}
e.AcceptedOperation = DataPackageOperation.Move;
def.Complete();
Navigator.MoveTab(unique_id, this.ViewModel);
// A drop should activate the TabbedFrame too.
Navigator.ShellData.ActiveFrameIndex = ViewModel.Index;
}
/// <summary>
/// Handler for drop events on breadcrumbs. Moves the dropped node into the target group,
/// if appropriate.
/// </summary>
/// <param name="sender">The element receiving the drop event.</param>
/// <param name="e">DragEventArgs for the drop.</param>
private async void Breadcrumb_Drop(object sender, DragEventArgs e)
{
// First get the group we are dropping onto...
FrameworkElement senderElement = sender as FrameworkElement;
DebugHelper.Assert(senderElement != null);
Breadcrumb thisBreadcrumb = senderElement.DataContext as Breadcrumb;
DebugHelper.Assert(thisBreadcrumb != null);
IKeePassGroup thisGroup = thisBreadcrumb.Group;
DebugHelper.Assert(thisGroup != null);
DragOperationDeferral deferral = e.GetDeferral();
// Get the UUID of the dropped node - if possible, move it into this group.
string encodedUuid = await e.DataView.GetTextAsync();
if (thisGroup.TryAdopt(encodedUuid))
{
DebugHelper.Trace($"Successfully moved node {encodedUuid} to new parent {thisGroup.Uuid.EncodedValue}");
e.AcceptedOperation = DataPackageOperation.Move;
}
else
{
DebugHelper.Trace($"WARNING: Unable to locate dropped node {encodedUuid}");
e.AcceptedOperation = DataPackageOperation.None;
}
e.Handled = true;
deferral.Complete();
}
private async void ListViewOnDragEnter(object sender, DragEventArgs dragEventArgs)
{
var listView = sender as ListView;
if (listView == null)
{
return;
}
_lastScrollMode = ScrollViewer.GetVerticalScrollMode(listView);
ScrollViewer.SetVerticalScrollMode(listView, ScrollMode.Disabled);
Tuple <ListViewItem, int> currentOverItemAndIndex = GetCurrentOverItemAndIndex(dragEventArgs, listView);
ListViewItem currentOverListViewItem = currentOverItemAndIndex.Item1;
if (currentOverListViewItem == null)
{
return;
}
DragOperationDeferral dragOperationDeferral = dragEventArgs.GetDeferral();
BitmapImage bitmapImage = await(await currentOverListViewItem.RenderTargetBitmapBuffer()).ToBitmapImage();
dragEventArgs.DragUIOverride?.SetContentFromBitmapImage(bitmapImage);
foreach (GroupedItem groupedItem in _dragGroupedItems)
{
groupedItem.Group?.Remove(groupedItem);
groupedItem.Group = null;
}
dragEventArgs.Handled = true;
dragOperationDeferral.Complete();
}
public async void dropimg(object sender, DragEventArgs e)
{
DragOperationDeferral defer = e.GetDeferral();
try
{
DataPackageView data_view = e.DataView;
string str = await clipboard(data_view);
clipboard_substitution(str);
}
finally
{
defer.Complete();
}
}
private void LeftEpisodeList_Drop(object sender, DragEventArgs e)
{
DragOperationDeferral def = e.GetDeferral();
if (e.Data.Properties.TryGetValue("episodes", out object items))
{
Point pos = e.GetPosition(LeftEpisodeList.ItemsPanelRoot);
ListViewItem lvi = (ListViewItem)LeftEpisodeList.ContainerFromIndex(0);
int index = 0;
if (lvi != null)
{
double itemHeight = lvi.ActualHeight + lvi.Margin.Top + lvi.Margin.Bottom;
index = Math.Min(LeftEpisodeList.Items.Count - 1, (int)(pos.Y / itemHeight));
ListViewItem targetItem = (ListViewItem)LeftEpisodeList.ContainerFromIndex(index);
Point positionInItem = e.GetPosition(targetItem);
if (positionInItem.Y > itemHeight / 2)
{
index++;
}
index = Math.Min(LeftEpisodeList.Items.Count, index);
}
IList <object> objects = (IList <object>)items;
if (objects.Count > 0)
{
PlexViewModel.SelectedShow.MarkDirty();
}
foreach (object o in objects)
{
Episode episode = (Episode)o;
PlexViewModel.RightSeason.RemoveEpisode(episode);
PlexViewModel.LeftSeason.InsertEpisode(index++, episode);
}
e.AcceptedOperation = DataPackageOperation.Move;
}
def.Complete();
}
private async void dragGrid4_DragStarting(UIElement sender, DragStartingEventArgs args)
{
args.Data.SetText(sourceTextBlock4.Text);
// 获取异步操作对象
DragOperationDeferral deferral = args.GetDeferral();
// 将 dragGrid4 截图，并以此创建一个 SoftwareBitmap 对象
RenderTargetBitmap rtb = new RenderTargetBitmap();
await rtb.RenderAsync(dragGrid4);
IBuffer buffer = await rtb.GetPixelsAsync();
SoftwareBitmap bitmap = SoftwareBitmap.CreateCopyFromBuffer(buffer, BitmapPixelFormat.Bgra8, rtb.PixelWidth, rtb.PixelHeight, BitmapAlphaMode.Premultiplied);
// drag 过程中的 ui 为指定的 SoftwareBitmap
args.DragUI.SetContentFromSoftwareBitmap(bitmap);
// 完成异步操作
deferral.Complete();
}
private async void dropGrid4_DragEnter(object sender, DragEventArgs e)
{
e.AcceptedOperation = DataPackageOperation.Copy;
e.DragUIOverride.Caption = "我是文本";
// 获取异步操作对象
DragOperationDeferral deferral = e.GetDeferral();
RenderTargetBitmap rtb = new RenderTargetBitmap();
await rtb.RenderAsync(dragGrid);
IBuffer buffer = await rtb.GetPixelsAsync();
SoftwareBitmap bitmap = SoftwareBitmap.CreateCopyFromBuffer(buffer, BitmapPixelFormat.Bgra8, rtb.PixelWidth, rtb.PixelHeight, BitmapAlphaMode.Premultiplied);
// drag 到 drop 区域后，drag 过程中的 ui 改为指定的 SoftwareBitmap
e.DragUIOverride.SetContentFromSoftwareBitmap(bitmap);
// 完成异步操作
deferral.Complete();
targetTextBlock4.Text += e.Modifiers;
targetTextBlock4.Text += Environment.NewLine;
}
private void ListBox_OnDrop(object sender, DragEventArgs e)
{
// If the item being dropped is a layer...
if (e.DataView != null && e.DataView.Properties != null && e.DataView.Properties.Any(x => x.Key == "item" && x.Value is Layer))
{
try
{
// Start doing work for the drop.
DragOperationDeferral deferral = e.GetDeferral();
// Get the layer that is being moved.
KeyValuePair <string, object> draggedItem = e.Data.Properties.FirstOrDefault(x => x.Key == "item");
Layer draggedLayer = draggedItem.Value as Layer;
// Find the source and destination views.
ListView destinationList = sender as ListView;
ListView sourceList = _originListView;
// Remove the layer and re-add it.
((LayerCollection)sourceList.ItemsSource).Remove(draggedLayer);
((LayerCollection)destinationList.ItemsSource).Add(draggedLayer);
// Finish the drop.
deferral.Complete();
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
}
}
else
{
// Don't allow other things to be dropped (e.g. files from the desktop).
e.AcceptedOperation = DataPackageOperation.None;
}
}
private async void ListView_Drop(object sender, DragEventArgs e)
{
ListView target = (ListView)sender;
if (e.DataView.Contains(StandardDataFormats.Text))
{
DragOperationDeferral def = e.GetDeferral();
string s = await e.DataView.GetTextAsync();
var site = Newtonsoft.Json.JsonConvert.DeserializeObject <SiteMetaWithKey>(s);
// Find the insertion index:
Windows.Foundation.Point pos = e.GetPosition(target.ItemsPanelRoot);
// Find which ListView is the target, find height of first item
ListViewItem sampleItem;
if (target.Name == "EnabledSitesListView")
{
sampleItem = (ListViewItem)NotEnabledSitesListView.ContainerFromIndex(0);
}
else
{
sampleItem = (ListViewItem)EnabledSitesListView.ContainerFromIndex(0);
}
// Adjust ItemHeight for margins
double itemHeight = sampleItem.ActualHeight + sampleItem.Margin.Top + sampleItem.Margin.Bottom;
// Find index based on dividing number of items by height of each item
int index = Math.Min(target.Items.Count - 1, (int)(pos.Y / itemHeight));
// Find the item that we want to drop
ListViewItem targetItem = (ListViewItem)target.ContainerFromIndex(index);
// Figure out if to insert above or below
Windows.Foundation.Point positionInItem = e.GetPosition(targetItem);
if (positionInItem.Y > itemHeight / 2)
{
index++;
}
// Don't go out of bounds
index = Math.Min(target.Items.Count, index);
// Find correct source list
if (target.Name == "EnabledSitesListView")
{
EnabledSites.Insert(index, site);
foreach (var item in NotEnabledSites)
{
if (item.Key == site.Key)
{
NotEnabledSites.Remove(item);
break;
}
}
}
else if (target.Name == "NotEnabledSitesListView")
{
NotEnabledSites.Insert(index, site);
foreach (var item in EnabledSites)
{
if (item.Key == site.Key)
{
EnabledSites.Remove(item);
break;
}
}
}
e.AcceptedOperation = DataPackageOperation.Move;
def.Complete();
}
}
private async void ListView_Drop(object sender, DragEventArgs e)
{
ListView target = (ListView)sender;
if (e.DataView.Contains(StandardDataFormats.Text))
{
DragOperationDeferral def = e.GetDeferral();
string s = await e.DataView.GetTextAsync();
string[] items = s.Split('\n');
foreach (string item in items)
{
// Create Contact object from string, add to existing target ListView
string[] info = item.Split(" ", 3);
Contact temp = new Contact(info[0], info[1], info[2]);
// Find the insertion index:
Windows.Foundation.Point pos = e.GetPosition(target.ItemsPanelRoot);
// If the target ListView has items in it, use the heigh of the first item
// to find the insertion index.
int index = 0;
if (target.Items.Count != 0)
{
// Get a reference to the first item in the ListView
ListViewItem sampleItem = (ListViewItem)target.ContainerFromIndex(0);
// Adjust itemHeight for margins
double itemHeight = sampleItem.ActualHeight + sampleItem.Margin.Top + sampleItem.Margin.Bottom;
// Find index based on dividing number of items by height of each item
index = Math.Min(target.Items.Count - 1, (int)(pos.Y / itemHeight));
// Find the item being dropped on top of.
ListViewItem targetItem = (ListViewItem)target.ContainerFromIndex(index);
// If the drop position is more than half-way down the item being dropped on
// top of, increment the insertion index so the dropped item is inserted
// below instead of above the item being dropped on top of.
Windows.Foundation.Point positionInItem = e.GetPosition(targetItem);
if (positionInItem.Y > itemHeight / 2)
{
index++;
}
// Don't go out of bounds
index = Math.Min(target.Items.Count, index);
}
// Only other case is if the target ListView has no items (the dropped item will be
// the first). In that case, the insertion index will remain zero.
// Find correct source list
if (target.Name == "DragDropListView")
{
// Find the ItemsSource for the target ListView and insert
contacts1.Insert(index, temp);
//Go through source list and remove the items that are being moved
foreach (Contact contact in DragDropListView2.Items)
{
if (contact.FirstName == temp.FirstName && contact.LastName == temp.LastName && contact.Company == temp.Company)
{
contacts2.Remove(contact);
break;
}
}
}
else if (target.Name == "DragDropListView2")
{
contacts2.Insert(index, temp);
foreach (Contact contact in DragDropListView.Items)
{
if (contact.FirstName == temp.FirstName && contact.LastName == temp.LastName && contact.Company == temp.Company)
{
contacts1.Remove(contact);
break;
}
}
}
}
e.AcceptedOperation = DataPackageOperation.Move;
def.Complete();
}
}
private async void ListView_Drop(object sender, DragEventArgs e)
{
ListView target = (ListView)sender;
if (e.DataView.Contains(StandardDataFormats.Text))
{
DragOperationDeferral def = e.GetDeferral();
string s = await e.DataView.GetTextAsync();
string[] items = s.Split('\n');
foreach (string item in items)
{
// Create Contact object from string, add to existing target ListView
string[] info = item.Split(" ", 3);
Contact temp = new Contact(info[0], info[1], info[2]);
// Find the insertion index:
Windows.Foundation.Point pos = e.GetPosition(target.ItemsPanelRoot);
// Find which ListView is the target, find height of first item
ListViewItem sampleItem;
if (target.Name == "DragDropListView")
{
sampleItem = (ListViewItem)DragDropListView2.ContainerFromIndex(0);
}
// Only other case is target = DragDropListView2
else
{
sampleItem = (ListViewItem)DragDropListView.ContainerFromIndex(0);
}
// Adjust ItemHeight for margins
double itemHeight = sampleItem.ActualHeight + sampleItem.Margin.Top + sampleItem.Margin.Bottom;
// Find index based on dividing number of items by height of each item
int index = Math.Min(target.Items.Count - 1, (int)(pos.Y / itemHeight));
// Find the item that we want to drop
ListViewItem targetItem = (ListViewItem)target.ContainerFromIndex(index);;
// Figure out if to insert above or below
Windows.Foundation.Point positionInItem = e.GetPosition(targetItem);
if (positionInItem.Y > itemHeight / 2)
{
index++;
}
// Don't go out of bounds
index = Math.Min(target.Items.Count, index);
// Find correct source list
if (target.Name == "DragDropListView")
{
// Find the ItemsSource for the target ListView and insert
contacts1.Insert(index, temp);
//Go through source list and remove the items that are being moved
foreach (Contact contact in DragDropListView2.Items)
{
if (contact.FirstName == temp.FirstName && contact.LastName == temp.LastName && contact.Company == temp.Company)
{
contacts2.Remove(contact);
break;
}
}
}
else if (target.Name == "DragDropListView2")
{
contacts2.Insert(index, temp);
foreach (Contact contact in DragDropListView.Items)
{
if (contact.FirstName == temp.FirstName && contact.LastName == temp.LastName && contact.Company == temp.Company)
{
contacts1.Remove(contact);
break;
}
}
}
}
e.AcceptedOperation = DataPackageOperation.Move;
def.Complete();
}
}
private void CanvasControl_Drop(object sender, DragEventArgs e)
{
DragOperationDeferral def = e.GetDeferral();
def.Complete();
if (App.Model.Drop.Clip != null)
{
Point p = e.GetPosition(CanvasControl);
//Main：主剪辑
if (p.Y < App.Setting.Space + App.Setting.RulerSpace)
{
MediaClip clip = App.Model.Drop.Clip.Clone();
TimeSpan postion = App.Model.ScreenToCanvas((float)p.X); //当前时间
TimeSpan postiondouble = postion + postion; //双倍当前时间（为了与以后的start+end做比较计算）
if (App.Model.MediaComposition.Clips.Count == 0) //轨道是空的
{
App.Model.MediaComposition.Clips.Add(clip);
}
else if (App.Model.MediaComposition.Clips.Count == 1)//轨道上只有一个
{
var First = App.Model.MediaComposition.Clips.First();
if (postiondouble < First.StartTimeInComposition + First.EndTimeInComposition)
{
App.Model.MediaComposition.Clips.Insert(0, clip);
}
else
{
App.Model.MediaComposition.Clips.Insert(1, clip);
}
}
else//轨道上有多个
{
//判断是否超出第一个剪辑的结束时间
MediaClip First = App.Model.MediaComposition.Clips.FirstOrDefault();
if (postiondouble < First.StartTimeInComposition + First.EndTimeInComposition)
{
App.Model.MediaComposition.Clips.Insert(0, clip);
}
//循环，寻找中间落脚点在哪里
TimeSpan OldStartAndEnd = TimeSpan.Zero;
for (int i = 1; i < App.Model.MediaComposition.Clips.Count; i++)
{
MediaClip Current = App.Model.MediaComposition.Clips[i];
//是否处于前一个媒体剪辑与后一个媒体剪辑的中点之间
if (postiondouble > OldStartAndEnd && postiondouble < Current.StartTimeInComposition + Current.EndTimeInComposition)
{
App.Model.MediaComposition.Clips.Insert(i, clip);
}
OldStartAndEnd = Current.StartTimeInComposition + Current.EndTimeInComposition;//新旧交替
}
//判断是否超出最后一个剪辑的结束时间
MediaClip Last = App.Model.MediaComposition.Clips.LastOrDefault();
if (postiondouble > Last.StartTimeInComposition + Last.EndTimeInComposition)
{
App.Model.MediaComposition.Clips.Insert(App.Model.MediaComposition.Clips.Count, clip);
}
}
//设此媒体剪辑为当前媒体剪辑当前
App.Model.Current = clip;
App.Model.OverlayCurrent = null;
}
else
{
//OverlayMove：覆盖移动
for (int i = 0; i < App.Model.MediaComposition.OverlayLayers.Count; i++)
{
float top = App.Setting.RulerSpace + App.Setting.Space + i * App.Setting.OverlaySpace; //顶部
float height = App.Setting.OverlaySpace; //高度
float bottom = top + height; //底部
if (p.Y > top && p.Y < bottom)
{
App.Model.OverlayIndex = i;
MediaClip clip = App.Model.Drop.Clip.Clone();
MediaOverlay Overlay = new MediaOverlay(clip);
Overlay.Position = new Rect(100, 0, 666, 222);
App.Model.MediaComposition.OverlayLayers[i].Overlays.Add(Overlay);
Overlay.Delay = App.Model.ScreenToCanvas((float)p.X);
App.Model.Current = null;
App.Model.OverlayCurrent = Overlay;
App.Model.AudioCurrent = null;
}
}
}
App.Model.MediaPlayer.Source = MediaSource.CreateFromMediaStreamSource
(
App.Model.MediaComposition.GeneratePreviewMediaStreamSource(0, 0)
);
this.MediaPlayerElement.SetMediaPlayer(App.Model.MediaPlayer);
App.Model.Refresh++;//画布刷新
App.Model.Drop = null;
}
}
public static IDisposable ToDisposable(this DragOperationDeferral d) => new Disposable(d.Complete);
