feat(PdfReader): add load progress function (#7322)

* chore: bump version 10.1.4-beta05

* doc: 更新示例

* chore: bump version 10.0.14

* refactor: 更新示例

* chore: bump version 10.0.15

Author: ArgoZhang

src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj

@@ -63,7 +63,7 @@
     <PackageReference Include="BootstrapBlazor.OfficeViewer" Version="10.0.0" />
     <PackageReference Include="BootstrapBlazor.OnScreenKeyboard" Version="10.0.0" />
     <PackageReference Include="BootstrapBlazor.OpcDa" Version="10.0.0" />
-    <PackageReference Include="BootstrapBlazor.PdfReader" Version="10.0.12" />
+    <PackageReference Include="BootstrapBlazor.PdfReader" Version="10.0.15" />
     <PackageReference Include="BootstrapBlazor.PdfViewer" Version="10.0.0" />
     <PackageReference Include="BootstrapBlazor.Player" Version="10.0.1" />
     <PackageReference Include="BootstrapBlazor.RDKit" Version="10.0.0" />

src/BootstrapBlazor.Server/Components/Samples/PdfReaders.razor

@@ -38,9 +38,15 @@
                 <Switch @bind-Value="_showTwoPagesOneView"></Switch>
             </BootstrapInputGroup>
         </div>
+        <div class="col-12">
+            <Button Color="Color.Primary" OnClick="@(() => _url = "./samples/sample.pdf")" class="me-2">Sample-Url</Button>
+            <Button Color="Color.Primary" OnClick="@(() => _url = "./samples/sample2.pdf")" class="me-2">Sample2-Url</Button>
+            <Button Color="Color.Danger" OnClick="GetSampleStream" class="me-2">Sample-Stream</Button>
+            <Button Color="Color.Danger" OnClick="GetTestStream">Sample2-Stream</Button>
+        </div>
     </section>
     <PdfReader Url="@_url" EnableThumbnails="_enableThumbnails"
                ShowTwoPagesOneView="_showTwoPagesOneView" ShowDownload="_showDownload"
                ShowToolbar="_showToolbar" ShowPrint="_showPrint"
-               ViewHeight="600px" OnDownloadAsync="OnDownloadAsync"></PdfReader>
+               ViewHeight="600px" OnGetStreamAsync="OnGetStreamAsync"></PdfReader>
 </DemoBlock>

src/BootstrapBlazor.Server/Components/Samples/PdfReaders.razor.cs

@@ -21,11 +21,30 @@ public partial class PdfReaders
     private bool _enableThumbnails = true;
     private bool _showDownload = true;
     private bool _showToolbar = true;
-    private string _url = "./samples/sample.pdf";
+    private string _url = "sample.pdf";
+    private string _streamFileName = "";
 
-    private async Task OnDownloadAsync()
+    private async Task<Stream> OnGetStreamAsync()
     {
-        var file = Path.Combine(WebHostEnvironment.WebRootPath, "samples", "sample.pdf");
-        await DownloadService.DownloadFromFileAsync($"sample_{DateTime.Now:yyyyMMddHHmmss}.pdf", file);
+        await Task.Yield();
+        if (string.IsNullOrEmpty(_streamFileName))
+        {
+            return Stream.Null;
+        }
+
+        var stream = File.OpenRead(Path.Combine(WebHostEnvironment.WebRootPath, "samples", _streamFileName));
+        return stream;
+    }
+
+    private void GetTestStream()
+    {
+        _url = "";
+        _streamFileName = "sample2.pdf";
+    }
+
+    private void GetSampleStream()
+    {
+        _url = "";
+        _streamFileName = "sample.pdf";
     }
 }