feat(ImageCropper): add Preview parameter #6177
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Reviewer's GuideThe PR adds real-time preview support to the ImageCropper component by introducing a Preview parameter in the options and updating the ImageCroppers demo to leverage this feature, while also cleaning up markup and refactoring sample variables. Sequence Diagram for Real-time Crop Preview UpdatesequenceDiagram
actor User
participant ImageCropperComponent
participant PreviewDOMElements
User->>ImageCropperComponent: Adjusts crop selection (e.g., drag, resize)
activate ImageCropperComponent
ImageCropperComponent->>ImageCropperComponent: Processes crop data change
Note over ImageCropperComponent: Uses Options.Preview CSS selector
ImageCropperComponent->>PreviewDOMElements: Update preview image/style
activate PreviewDOMElements
PreviewDOMElements-->>User: Display updated real-time preview
deactivate PreviewDOMElements
deactivate ImageCropperComponent
Class Diagram for ImageCropperOption UpdateclassDiagram
class ImageCropperOption {
+AspectRatio: float
+IsRound: bool
+Preview: string #40;new#41;
#40;...other existing properties...#41;
}
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Contributor
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Hey @ArgoZhang - I've reviewed your changes - here's some feedback:
- Consider renaming
_roundOptions1and_roundOptions2to more descriptive names (e.g._rectPreviewOptionsand_roundPreviewOptions) to clarify their intended use. - The demo repeats nearly identical preview
<div>s; extracting that into a loop or a small reusable component would reduce duplication and make future size/style changes easier.
Here's what I looked at during the review
- 🟡 General issues: 1 issue found
- 🟢 Security: all looks good
- 🟢 Testing: all looks good
- 🟢 Complexity: all looks good
- 🟢 Documentation: all looks good
Help me be more useful! Please click 👍 or 👎 on each comment and I'll use the feedback to improve your reviews.
| private string? _base64String2; | ||
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| private readonly ImageCropperOption _roundOptions = new() { IsRound = true, Radius = "50%", AspectRatio = 3/4f }; | ||
| private readonly ImageCropperOption _roundOptions1 = new() { AspectRatio = 16 / 9f, Preview = ".bb-cropper-preview1" }; |
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suggestion: Rename _roundOptions1 to better reflect its use
Since this object is for the standard cropper, a name like _normalOptions would improve clarity.
Suggested implementation:
private readonly ImageCropperOption _normalOptions = new() { AspectRatio = 16 / 9f, Preview = ".bb-cropper-preview1" };If there are any usages of _roundOptions1 elsewhere in this file (or in the corresponding .razor file), they should also be renamed to _normalOptions for consistency.
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fixes #6176
Summary By Copilot
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☑️ Self Check before Merge
Summary by Sourcery
Introduce a Preview option in the ImageCropper component and enhance the sample page to showcase dynamic preview panels for both rectangular and round cropping.
New Features:
Enhancements: