egwcorelib/EgwCoreLib.Razor/PdfDisplay.razor.cs

using Microsoft.AspNetCore.Components;
using Microsoft.Extensions.Options;
using Microsoft.JSInterop;
using System.Diagnostics.CodeAnalysis;
using System.Xml.Linq;
using ZXingBlazor.Components;

namespace EgwCoreLib.Razor
{
    public partial class PdfDisplay
    {
        #region Public Properties

        /// <summary>
        /// URL del documento da mostrare
        /// </summary>
        [Parameter]
        public string PdfUrl { get; set; } = "";

        /// <summary>
        /// Larghezza desiderata
        /// </summary>
        [Parameter]
        public string Width { get; set; } = "100%";


        /// <summary>
        /// Elenco altezze ammesse
        /// </summary>
        [Parameter]
        public Dictionary<string, string> HeightList
        {
            get => hList;
            set
            {
                if (hList != value && value.Count > 0)
                {
                    hList = value;
                }
            }
        }


        private Dictionary<string, string> hList { get; set; } = new Dictionary<string, string>() { { "200", "200px" }, { "400", "400px" }, { "600", "600px" } };


        protected override void OnInitialized()
        {
            // in base a quanti ne ho preso ultima o in mezzo...
            int numSkip = HeightList.Count() > 3 ? 2 : 0;

            Height = HeightList.Skip(numSkip).FirstOrDefault().Value;
        }

        #endregion Public Properties

        #region Protected Methods

        protected override async Task OnAfterRenderAsync(bool firstRender)
        {
            try
            {
                if (!firstRender) return;

                module = await JS.InvokeAsync<IJSObjectReference>("import", "./_content/EgwCoreLib.Razor/PdfDisplay.razor.js");
                isMobile = await JS.InvokeAsync<bool>("isDevice");
            }
            catch
            { }
        }

        #endregion Protected Methods

        #region Private Fields

        private IJSObjectReference? module;

        #endregion Private Fields

        #region Private Properties

        private string Height { get; set; } = "600px";

        /// <summary>
        /// Boolean Mobile vs Desktop
        /// </summary>
        private bool isMobile { get; set; }

        [Inject]
        [NotNull]
        private IJSRuntime? JS { get; set; }

        #endregion Private Properties
    }
}