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@ArgoZhang ArgoZhang commented Feb 22, 2025

add IHtml2Image service

Summary of the changes (Less than 80 chars)

简单描述你更改了什么, 不超过80个字符;如果有关联 Issue 请在下方填写相关编号

Description

fixes #5418

Regression?

  • Yes
  • No

[If yes, specify the version the behavior has regressed from]

[是否影响老版本]

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  • Medium
  • Low

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Verification

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  • Automated

Packaging changes reviewed?

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  • No
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☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

  • Doc is updated/provided or not needed
  • Demo is updated/provided or not needed
  • Merge the latest code from the main branch

Summary by Sourcery

This pull request introduces a new service, IHtml2Image, that allows exporting HTML elements as images. It includes the service implementation, interface definition, options, a demo page, and necessary configurations.

New Features:

  • Introduces the IHtml2Image service for exporting HTML elements as images.
  • Adds a new demo page for the IHtml2Image service.

Enhancements:

  • Updates the menu to include a link to the new Html2Image demo page.

Build:

  • Adds the html2image library as a dependency.

@bb-auto bb-auto bot added the enhancement New feature or request label Feb 22, 2025
@bb-auto bb-auto bot added this to the v9.3.0 milestone Feb 22, 2025
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sourcery-ai bot commented Feb 22, 2025

Reviewer's Guide by Sourcery

This pull request introduces the IHtml2Image service, which allows exporting HTML elements to images. It includes the service implementation, a demo page, documentation updates, and localization support.

Sequence diagram for Html2Image service usage

sequenceDiagram
    participant RazorComponent as Component
    participant IHtml2Image as Service
    participant DefaultHtml2ImageService as Implementation
    participant IJSRuntime as JSRuntime

    Component->>Service: GetDataAsync(selector, options)
    Service->>Implementation: GetDataAsync(selector, options)
    Implementation->>JSRuntime: LoadModuleByName("html2image")
    alt jsModule is null
        JSRuntime-->>Implementation: jsModule
    end
    Implementation->>JSRuntime: InvokeAsync("execute", selector, "toPng", options)
    JSRuntime-->>Implementation: data
    Implementation-->>Service: data
    Service-->>Component: data
Loading

Updated class diagram for Html2Image service

classDiagram
  class IHtml2Image {
    +GetDataAsync(string selector, Html2ImageOptions options) Task~string~
    +GetStreamAsync(string selector, Html2ImageOptions options) Task~Stream~
  }
  class DefaultHtml2ImageService {
    -runtime: IJSRuntime
    -logger: ILogger~DefaultHtml2ImageService~
    -jsModule: JSModule
    +GetDataAsync(string selector, Html2ImageOptions options) Task~string~
    +GetStreamAsync(string selector, Html2ImageOptions options) Task~Stream~
    -Execute(string selector, string methodName, Html2ImageOptions options) Task~string~
    -ToBlob(string selector, Html2ImageOptions options) Task~Stream~
  }
  class Html2ImageOptions {
    +IncludeStyleProperties: List~string~
  }

  IHtml2Image <|-- DefaultHtml2ImageService
Loading

File-Level Changes

Change Details Files
Added IHtml2Image service and its default implementation.
  • Added IHtml2Image interface.
  • Added DefaultHtml2ImageService class implementing the IHtml2Image interface.
  • Registered IHtml2Image service in AddBootstrapBlazor extension method.
  • Created Html2ImageOptions class for configuring the image export.
  • Added javascript module html2image.js to handle the conversion using html-to-image library.
  • Added html-to-image library to wwwroot/lib folder.
src/BootstrapBlazor/Extensions/BootstrapBlazorServiceCollectionExtensions.cs
src/BootstrapBlazor/Services/DefaultHtml2ImageService.cs
src/BootstrapBlazor/Services/IHtml2Image.cs
src/BootstrapBlazor/Options/Html2ImageOptions.cs
src/BootstrapBlazor/wwwroot/modules/html2image.js
src/BootstrapBlazor/wwwroot/lib/html2image/html-to-image.js
Implemented a demo page for the IHtml2Image service.
  • Created Html2Images.razor component to demonstrate the usage of IHtml2Image service.
  • Added a button to trigger the image export.
  • Displayed a sample table to be converted into an image.
  • Displayed the generated image using an img tag.
  • Added a route /html2image for the demo page.
src/BootstrapBlazor.Server/Components/Samples/Html2Images.razor.cs
src/BootstrapBlazor.Server/Components/Samples/Html2Images.razor
Added Html2Image menu item to the documentation.
  • Added a new menu item for Html2Image under the Services section.
  • Set the IsNew flag to true for the Html2Image menu item.
  • Updated the URL for the Html2Image menu item to 'html2image'.
src/BootstrapBlazor.Server/Extensions/MenusLocalizerExtensions.cs
Updated localization files with Html2Image related keys.
  • Added Html2ImageTitle, Html2ImageIntro, Html2ImageElementTitle, Html2ImageElementIntro, Html2ImageButtonText keys to en-US.json.
  • Added Html2ImageTitle, Html2ImageIntro, Html2ImageElementTitle, Html2ImageElementIntro, Html2ImageButtonText keys to zh-CN.json.
src/BootstrapBlazor.Server/Locales/en-US.json
src/BootstrapBlazor.Server/Locales/zh-CN.json
Updated documentation files with Html2Image related keys.
  • Added Html2ImageTitle, Html2ImageIntro, Html2ImageElementTitle, Html2ImageElementIntro, Html2ImageButtonText keys to docs.json.
src/BootstrapBlazor.Server/docs.json

Assessment against linked issues

Issue Objective Addressed Explanation
#5418 Implement an IHtml2Image service to export rendered components or elements as images.
#5418 Provide methods for exporting as a stream and as a Base64 string.

Possibly linked issues


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Hey @ArgoZhang - I've reviewed your changes - here's some feedback:

Overall Comments:

  • Consider adding a try-catch block around the runtime.LoadModuleByName call in DefaultHtml2ImageService.cs to handle potential module loading failures more gracefully.
  • The new razor component Html2Images.razor.cs is missing a summary for the class.
Here's what I looked at during the review
  • 🟡 General issues: 1 issue found
  • 🟢 Security: all looks good
  • 🟢 Testing: all looks good
  • 🟡 Complexity: 1 issue found
  • 🟢 Documentation: all looks good

Sourcery is free for open source - if you like our reviews please consider sharing them ✨
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.

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codecov bot commented Feb 22, 2025

Codecov Report

Attention: Patch coverage is 2.56410% with 38 lines in your changes missing coverage. Please review.

Project coverage is 99.87%. Comparing base (fabdb3f) to head (a638f5c).
Report is 1 commits behind head on main.

Files with missing lines Patch % Lines
...otstrapBlazor/Services/DefaultHtml2ImageService.cs 0.00% 37 Missing ⚠️
src/BootstrapBlazor/Options/Html2ImageOptions.cs 0.00% 1 Missing ⚠️
Additional details and impacted files
@@             Coverage Diff             @@
##              main    #5421      +/-   ##
===========================================
- Coverage   100.00%   99.87%   -0.13%     
===========================================
  Files          644      646       +2     
  Lines        29359    29398      +39     
  Branches      4128     4133       +5     
===========================================
+ Hits         29359    29360       +1     
- Misses           0       38      +38     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

@ArgoZhang ArgoZhang merged commit 4065f44 into main Feb 22, 2025
4 of 6 checks passed
@ArgoZhang ArgoZhang deleted the feat-theme branch February 22, 2025 02:25
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feat(IHtml2Image): add IHtml2Image service

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