Files
openarchival/OpenArchival.Blazor/Components/CustomComponents/UploadDropBox.razor

104 lines
3.2 KiB
Plaintext

@inject ISnackbar Snackbar
<style>
.file-upload-input {
position: absolute;
width: 100%;
height: 100%;
overflow: hidden;
z-index: 10;
opacity: 0;
}
</style>
<MudStack Style="width: 100%">
<MudFileUpload T="IReadOnlyList<IBrowserFile>"
@ref="@_fileUpload"
OnFilesChanged="OnInputFileChanged"
AppendMultipleFiles
Hidden="@false"
InputClass="file-upload-input"
tabindex="-1"
@ondrop="@ClearDragClass"
@ondragenter="@SetDragClass"
@ondragleave="@ClearDragClass"
@ondragend="@ClearDragClass">
<ActivatorContent>
<MudPaper Height="300px"
Outlined="true"
Class="@_dragClass">
<MudText Typo="Typo.h6">
Drag and drop files here or click
</MudText>
@foreach (var file in _fileNames)
{
<MudChip T="string"
Color="Color.Dark"
Text="@file"
tabindex="-1" />
}
</MudPaper>
</ActivatorContent>
</MudFileUpload>
<MudToolBar Gutters="@false"
Class="relative d-flex justify-end gap-4">
<MudButton Color="Color.Primary"
OnClick="@OpenFilePickerAsync"
Variant="Variant.Filled">
Open file picker
</MudButton>
<MudButton Color="Color.Primary"
Disabled="@(!_fileNames.Any())"
OnClick="@Upload"
Variant="Variant.Filled">
Upload
</MudButton>
<MudButton Color="Color.Error"
Disabled="@(!_fileNames.Any())"
OnClick="@ClearAsync"
Variant="Variant.Filled">
Clear
</MudButton>
</MudToolBar>
</MudStack>
@code {
#nullable enable
private const string DefaultDragClass = "relative rounded-lg border-2 border-dashed pa-4 mt-4 mud-width-full mud-height-full";
private string _dragClass = DefaultDragClass;
private readonly List<string> _fileNames = new();
private MudFileUpload<IReadOnlyList<IBrowserFile>>? _fileUpload;
private async Task ClearAsync()
{
await (_fileUpload?.ClearAsync() ?? Task.CompletedTask);
_fileNames.Clear();
ClearDragClass();
}
private Task OpenFilePickerAsync()
=> _fileUpload?.OpenFilePickerAsync() ?? Task.CompletedTask;
private void OnInputFileChanged(InputFileChangeEventArgs e)
{
ClearDragClass();
var files = e.GetMultipleFiles();
foreach (var file in files)
{
_fileNames.Add(file.Name);
}
}
private void Upload()
{
// Upload the files here
Snackbar.Configuration.PositionClass = Defaults.Classes.Position.TopCenter;
Snackbar.Add("TODO: Upload your files!");
}
private void SetDragClass()
=> _dragClass = $"{DefaultDragClass} mud-border-primary";
private void ClearDragClass()
=> _dragClass = DefaultDragClass;
}