oqtane.framework/Oqtane.Client/Modules/Controls/FileManager.razor
2020-03-02 10:23:21 -05:00

332 lines
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@namespace Oqtane.Modules.Controls
@inherits ModuleBase
@inject IFolderService FolderService
@inject IFileService FileService
@inject IJSRuntime jsRuntime
@if (folders != null)
{
<div class="container-fluid px-0">
<div class="row">
<div class="col">
<div>
<select class="form-control" @onchange="(e => FolderChanged(e))">
@if (string.IsNullOrEmpty(Folder))
{
<option value="-1">&lt;Select Folder&gt;</option>
}
@foreach (Folder folder in folders)
{
if (folder.FolderId == folderid)
{
<option value="@(folder.FolderId)" selected>@(new string('-', folder.Level * 2))@(folder.Name)</option>
}
else
{
<option value="@(folder.FolderId)">@(new string('-', folder.Level * 2))@(folder.Name)</option>
}
}
</select>
</div>
@if (showfiles)
{
<div>
<select class="form-control" @onchange="(e => FileChanged(e))">
<option value="-1">&lt;Select File&gt;</option>
@foreach (File file in files)
{
if (file.FileId == fileid)
{
<option value="@(file.FileId)" selected>@(file.Name)</option>
}
else
{
<option value="@(file.FileId)">@(file.Name)</option>
}
}
</select>
</div>
}
@if (haseditpermission)
{
<div>
@if (uploadmultiple)
{
<input type="file" id="@fileinputid" name="file" accept="@filter" multiple />
}
else
{
<input type="file" id="@fileinputid" name="file" accept="@filter" />
}
<span id="@progressinfoid"></span><progress id="@progressbarid" style="width: 150px; visibility: hidden;"></progress>
<span class="float-right">
<button type="button" class="btn btn-success" @onclick="UploadFile">Upload</button>
@if (showfiles && GetFileId() != -1)
{
<button type="button" class="btn btn-danger" @onclick="DeleteFile">Delete</button>
}
</span>
</div>
@((MarkupString)@message)
}
</div>
@if (@image != "")
{
<div class="col-auto">
@((MarkupString)@image)
</div>
}
</div>
</div>
}
@code {
[Parameter]
public string Folder { get; set; } // optional - for setting a specific folder by default
[Parameter]
public string FolderId { get; set; } // optional - for setting a specific folderid by default
[Parameter]
public string ShowFiles { get; set; } // optional - for indicating whether a list of files should be displayed - default is true
[Parameter]
public string FileId { get; set; } // optional - for setting a specific file by default
[Parameter]
public string Filter { get; set; } // optional - comma delimited list of file types that can be selected or uploaded ie. "jpg,gif"
[Parameter]
public string UploadMultiple { get; set; } // optional - enable multiple file uploads - default false
string id;
List<Folder> folders;
int folderid = -1;
List<File> files = new List<File>();
int fileid = -1;
bool showfiles = true;
string fileinputid = "";
string progressinfoid = "";
string progressbarid = "";
string filter = "*";
bool uploadmultiple = false;
bool haseditpermission = false;
string message = "";
string image = "";
protected override async Task OnInitializedAsync()
{
if (!string.IsNullOrEmpty(Folder))
{
folders = new List<Folder>();
folders.Add(new Folder { FolderId = -1, Name = Folder });
folderid = -1;
}
else
{
folders = await FolderService.GetFoldersAsync(ModuleState.SiteId);
if (!string.IsNullOrEmpty(FolderId))
{
folderid = int.Parse(FolderId);
}
}
if (!string.IsNullOrEmpty(FileId))
{
fileid = int.Parse(FileId);
await SetImage();
if (fileid != -1)
{
File file = await FileService.GetFileAsync(int.Parse(FileId));
if (file != null)
{
folderid = file.FolderId;
}
}
}
if (!string.IsNullOrEmpty(ShowFiles))
{
showfiles = bool.Parse(ShowFiles);
}
if (!string.IsNullOrEmpty(Filter))
{
filter = "." + Filter.Replace(",",",.");
}
await GetFiles();
// create unique id for component
id = Guid.NewGuid().ToString("N");
fileinputid = id + "FileInput";
progressinfoid = id + "ProgressInfo";
progressbarid = id + "ProgressBar";
if (!string.IsNullOrEmpty(UploadMultiple))
{
uploadmultiple = bool.Parse(UploadMultiple);
}
}
private async Task GetFiles()
{
haseditpermission = false;
if (!string.IsNullOrEmpty(Folder))
{
haseditpermission = UserSecurity.IsAuthorized(PageState.User, Constants.HostRole);
files = await FileService.GetFilesAsync(Folder);
}
else
{
Folder folder = folders.Where(item => item.FolderId == folderid).FirstOrDefault();
if (folder != null)
{
haseditpermission = UserSecurity.IsAuthorized(PageState.User, "Edit", folder.Permissions);
files = await FileService.GetFilesAsync(folderid);
}
else
{
haseditpermission = false;
files = new List<File>();
}
}
if (filter != "*")
{
List<File> filtered = new List<File>();
foreach (File file in files)
{
if (filter.ToUpper().IndexOf("." + file.Extension.ToUpper()) != -1)
{
filtered.Add(file);
}
}
files = filtered;
}
}
private async Task FolderChanged(ChangeEventArgs e)
{
message = "";
try
{
folderid = int.Parse((string)e.Value);
await GetFiles();
fileid = -1;
image = "";
StateHasChanged();
}
catch (Exception ex)
{
await logger.LogError(ex, "Error Loading Files {Error}", ex.Message);
message = "<br /><div class=\"alert alert-danger\" role=\"alert\">Error Loading Files</div>";
}
}
private async Task FileChanged(ChangeEventArgs e)
{
message = "";
fileid = int.Parse((string)e.Value);
await SetImage();
StateHasChanged();
}
private async Task SetImage()
{
image = "";
if (fileid != -1)
{
File file = await FileService.GetFileAsync(fileid);
if (file.ImageHeight != 0 && file.ImageWidth != 0)
{
int maxwidth = 200;
int maxheight = 200;
double ratioX = (double)maxwidth / (double)file.ImageWidth;
double ratioY = (double)maxheight / (double)file.ImageHeight;
double ratio = ratioX < ratioY ? ratioX : ratioY;
image = "<img src=\"" + ContentUrl(fileid) + "\" alt=\"" + file.Name +
"\" width=\"" + Convert.ToInt32(file.ImageWidth * ratio).ToString() +
"\" height=\"" + Convert.ToInt32(file.ImageHeight * ratio).ToString() + "\" />";
}
}
}
private async Task UploadFile()
{
var interop = new Interop(jsRuntime);
string[] upload = await interop.GetFiles(fileinputid);
if (upload.Length > 0)
{
try
{
string result;
if (!string.IsNullOrEmpty(Folder))
{
result = await FileService.UploadFilesAsync(Folder, upload, id);
}
else
{
result = await FileService.UploadFilesAsync(folderid, upload, id);
}
if (result == "")
{
await logger.LogInformation("File Upload Succeeded {Files}", upload);
message = "<br /><div class=\"alert alert-success\" role=\"alert\">File Upload Succeeded</div>";
await GetFiles();
if (upload.Length == 1)
{
File file = files.Where(item => item.Name == upload[0]).FirstOrDefault();
if (file != null)
{
fileid = file.FileId;
await SetImage();
}
}
StateHasChanged();
}
else
{
await logger.LogError("File Upload Failed For {Files}", result.Replace(",", ", "));
message = "<br /><div class=\"alert alert-danger\" role=\"alert\">File Upload Failed</div>";
}
}
catch (Exception ex)
{
await logger.LogError(ex, "File Upload Failed {Error}", ex.Message);
message = "<br /><div class=\"alert alert-danger\" role=\"alert\">File Upload Failed</div>";
}
}
else
{
message = "<br /><div class=\"alert alert-warning\" role=\"alert\">You Have Not Selected A File To Upload</div>";
}
}
private async Task DeleteFile()
{
message = "";
try
{
await FileService.DeleteFileAsync(fileid);
await logger.LogInformation("File Deleted {File}", fileid);
message = "<br /><div class=\"alert alert-success\" role=\"alert\">File Deleted</div>";
await GetFiles();
fileid = -1;
await SetImage();
StateHasChanged();
}
catch (Exception ex)
{
await logger.LogError(ex, "Error Deleting File {File} {Error}", fileid, ex.Message);
message = "<br /><div class=\"alert alert-danger\" role=\"alert\">Error Deleting File</div>";
}
}
public int GetFileId()
{
return fileid;
}
}