From 8d8cfa1c4cafd2462ece5244ab39272e8db600b9 Mon Sep 17 00:00:00 2001
From: Argo Zhang <argo@live.ca>
Date: Thu, 27 Nov 2025 12:19:25 +0800
Subject: [PATCH 1/2] =?UTF-8?q?feat:=20=E5=A2=9E=E5=8A=A0=E6=89=93?=
 =?UTF-8?q?=E5=8D=B0=E5=9B=9E=E8=B0=83=E6=96=B9=E6=B3=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../PdfReader.razor.cs                        | 21 +++++++++-
 .../PdfReader.razor.js                        | 41 ++++++++++++++++++-
 2 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.cs b/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.cs
index ad3cfc36..9283384e 100644
--- a/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.cs
+++ b/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.cs
@@ -110,11 +110,17 @@ public partial class PdfReader
     public string? MoreButtonIcon { get; set; }
 
     /// <summary>
-    /// 点击下载按钮回调方法 默认 null 使用组件内置下载功能
+    /// 点击下载按钮回调方法 默认 null
     /// </summary>
     [Parameter]
     public Func<Task>? OnDownloadAsync { get; set; }
 
+    /// <summary>
+    /// 正在打印回调方法 默认 null
+    /// </summary>
+    [Parameter]
+    public Func<Task>? OnPrintingAsync { get; set; }
+
     private string? ClassString => CssBuilder.Default("bb-pdf-reader")
         .AddClassFromAttributes(AdditionalAttributes)
         .Build();
@@ -347,4 +353,17 @@ public async Task PageChanged(uint pageIndex)
             await OnPageChangedAsync(pageIndex);
         }
     }
+
+    /// <summary>
+    /// 正在打印回调方法
+    /// </summary>
+    /// <returns></returns>
+    [JSInvokable]
+    public async Task Printing()
+    {
+        if (OnPrintingAsync != null)
+        {
+            await OnPrintingAsync();
+        }
+    }
 }
diff --git a/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.js b/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.js
index e7b77a5f..ef6a768c 100644
--- a/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.js
+++ b/src/components/BootstrapBlazor.PdfReader/PdfReader.razor.js
@@ -127,7 +127,7 @@ const addEventListener = (el, pdfViewer, eventBus, invoke, options) => {
         }
 
         if (options.triggerPagesInit === true) {
-            await invoke.invokeMethodAsync("pagesInit", numPages);
+            await invoke.invokeMethodAsync("PagesInit", numPages);
         }
     });
 
@@ -139,6 +139,12 @@ const addEventListener = (el, pdfViewer, eventBus, invoke, options) => {
         if (options.triggerPagesLoaded === true) {
             await invoke.invokeMethodAsync("PagesLoaded", e.pagesCount);
         }
+
+        const controls = el.querySelector(".bb-view-controls");
+        EventHandler.on(controls, "click", ".bb-view-print", e => {
+            printPdf(options.url);
+            await invoke.invokeMethodAsync("Printing");
+        });
     })
 
     eventBus.on("pagechanging", async evt => {
@@ -276,6 +282,31 @@ const makeThumb = async page => {
     return canvas;
 }
 
+const printPdf = url => {
+    let iframe = document.querySelector(".bb-view-print-iframe");
+    if (iframe) {
+        iframe.remove();
+    }
+
+    iframe = document.createElement("iframe");
+    iframe.classList = "bb-view-print-iframe";
+    iframe.style.position = "fixed";
+    iframe.style.right = "100%";
+    iframe.style.bottom = "100%";
+    iframe.src = url;
+
+    iframe.onload = () => {
+        iframe.contentWindow.addEventListener('afterprint', function () {
+            document.body.removeChild(iframe);
+        });
+
+        iframe.contentWindow.focus();
+        iframe.contentWindow.print();
+    };
+
+    document.body.appendChild(iframe);
+}
+
 export function dispose(id) {
     Data.remove(id);
 
@@ -304,5 +335,13 @@ export function dispose(id) {
         if (thumbnailsContainer) {
             EventHandler.off(thumbnailsContainer, "click");
         }
+
+        const controls = el.querySelector(".bb-view-controls");
+        EventHandler.off(controls, "click");
+
+        const iframe = document.querySelector('.bb-view-print-iframe');
+        if (iframe) {
+            iframe.remove();
+        }
     }
 }

From 6a4fa90482661577a1c979fa9ae038ce1cc44488 Mon Sep 17 00:00:00 2001
From: Argo Zhang <argo@live.ca>
Date: Thu, 27 Nov 2025 12:21:25 +0800
Subject: [PATCH 2/2] feat(PdfReader): add OnPrintingAsync parameter

---
 .../BootstrapBlazor.PdfReader/BootstrapBlazor.PdfReader.csproj  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/components/BootstrapBlazor.PdfReader/BootstrapBlazor.PdfReader.csproj b/src/components/BootstrapBlazor.PdfReader/BootstrapBlazor.PdfReader.csproj
index 155c9517..b8f6709e 100644
--- a/src/components/BootstrapBlazor.PdfReader/BootstrapBlazor.PdfReader.csproj
+++ b/src/components/BootstrapBlazor.PdfReader/BootstrapBlazor.PdfReader.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <Version>10.0.1-beta07</Version>
+    <Version>10.0.1-beta08</Version>
   </PropertyGroup>
   
   <PropertyGroup>