Files
marechai/Marechai/Pages/Computers/Search.razor.cs

105 lines
3.4 KiB
C#

/******************************************************************************
// MARECHAI: Master repository of computing history artifacts information
// ----------------------------------------------------------------------------
//
// Author(s) : Natalia Portillo <claunia@claunia.com>
//
// --[ License ] --------------------------------------------------------------
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2003-2020 Natalia Portillo
*******************************************************************************/
using System.Collections.Generic;
using System.Threading.Tasks;
using Marechai.ViewModels;
using Microsoft.AspNetCore.Components;
namespace Marechai.Pages.Computers
{
public partial class Search
{
char? _character;
List<MachineViewModel> _computers;
bool _loaded;
string _startingCharacter;
int? _year;
[Parameter]
public int? Year
{
get => _year;
set
{
if(_year == value)
return;
_year = value;
_loaded = false;
}
}
[Parameter]
public string StartingCharacter
{
get => _startingCharacter;
set
{
if(_startingCharacter == value)
return;
_startingCharacter = value;
_loaded = false;
}
}
protected override async Task OnAfterRenderAsync(bool firstRender)
{
if(_loaded)
return;
_character = null;
if(!string.IsNullOrWhiteSpace(StartingCharacter) &&
StartingCharacter.Length == 1)
{
_character = StartingCharacter[0];
// ToUpper()
if(_character >= 'a' &&
_character <= 'z')
_character -= (char)32;
// Check if not letter or number
if(_character < '0' ||
(_character > '9' && _character < 'A') ||
_character > 'Z')
_character = null;
}
if(_character.HasValue)
_computers = await Service.GetComputersByLetterAsync(_character.Value);
if(Year.HasValue &&
_computers is null)
_computers = await Service.GetComputersByYearAsync(Year.Value);
_computers ??= await Service.GetComputersAsync();
_loaded = true;
StateHasChanged();
}
}
}