private void ResetInput()
{
SelectedFile = null;
UserInputBar.InputText = string.Empty;
UpdateSendButtonIcon();
AddedAttachmentDisplay.HideAttachment();
}
private async void UserInputBar_OnSendMessageButtonClicked()
{
if (string.IsNullOrEmpty(UserInputBar.InputText) && SelectedFile == null)
{
var filePicker = new FileOpenPicker();
filePicker.FileTypeFilter.Add("*"); // Without this the file picker throws an exception, this is not documented
SelectedFile = await filePicker.PickSingleFileAsync();
if (SelectedFile != null)
{
AddedAttachmentDisplay.ShowAttachment(SelectedFile.Name);
UpdateSendButtonIcon();
UserInputBar.FocusTextBox();
}
else
{
AddedAttachmentDisplay.HideAttachment();
}
}
else
{
bool sendMessageResult = await GetMainPageVm().SendMessage(UserInputBar.InputText, SelectedFile);
if (sendMessageResult)
{
ResetInput();
}
}
}
/// <summary>
/// Set file as attatchment in UI.
/// </summary>
/// <param name="file">Attatchment to set in UI and save</param>
private void SetSelectedFile(StorageFile file)
{
SelectedFile = file;
if (SelectedFile == null)
{
AddedAttachmentDisplay.HideAttachment();
}
else
{
AddedAttachmentDisplay.ShowAttachment(SelectedFile.Name);
}
UpdateSendButtonIcon();
}
private async void Grid_Drop(object sender, DragEventArgs e)
{
if (e.DataView.Contains(StandardDataFormats.StorageItems))
{
var storageItems = await e.DataView.GetStorageItemsAsync();
var storageItem = storageItems[0];
SelectedFile = storageItem as StorageFile;
if (SelectedFile != null)
{
AddedAttachmentDisplay.ShowAttachment(SelectedFile.Name);
UpdateSendButtonIcon();
}
}
}
private async void Grid_KeyDown(object sender, KeyRoutedEventArgs e)
{
if (e.Key == VirtualKey.V)
{
bool ctrl = CoreWindow.GetForCurrentThread().GetKeyState(VirtualKey.Control).HasFlag(CoreVirtualKeyStates.Down);
if (ctrl)
{
var dataPackageView = Clipboard.GetContent();
if (dataPackageView.Contains(StandardDataFormats.StorageItems))
{
var pastedFiles = await dataPackageView.GetStorageItemsAsync();
var pastedFile = pastedFiles[0];
SelectedFile = pastedFile as StorageFile;
AddedAttachmentDisplay.ShowAttachment(SelectedFile.Name);
UpdateSendButtonIcon();
}
else if (dataPackageView.Contains(StandardDataFormats.Bitmap))
{
RandomAccessStreamReference pastedBitmap = await dataPackageView.GetBitmapAsync();
var pastedBitmapStream = await pastedBitmap.OpenReadAsync();
var tmpFile = await ApplicationData.Current.TemporaryFolder.CreateFileAsync("Signal-Windows-Screenshot.png", CreationCollisionOption.GenerateUniqueName);
using (var tmpFileStream = await tmpFile.OpenAsync(FileAccessMode.ReadWrite))
{
BitmapDecoder decoder = await BitmapDecoder.CreateAsync(pastedBitmapStream);
var pixels = await decoder.GetPixelDataAsync();
BitmapEncoder encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, tmpFileStream);
encoder.SetPixelData(decoder.BitmapPixelFormat,
BitmapAlphaMode.Ignore, // Alpha is not used
decoder.OrientedPixelWidth,
decoder.OrientedPixelHeight,
decoder.DpiX, decoder.DpiY,
pixels.DetachPixelData());
await encoder.FlushAsync();
}
SelectedFile = tmpFile;
AddedAttachmentDisplay.ShowAttachment(SelectedFile.Name);
UpdateSendButtonIcon();
}
}
}
}
private void AddedAttachmentDisplay_OnCancelAttachmentButtonClicked()
{
AddedAttachmentDisplay.HideAttachment();
SelectedFile = null;
UpdateSendButtonIcon();
}
