feat(Print): support cavas html element #6203
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #6203 +/- ##
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Coverage 100.00% 100.00%
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Files 704 704
Lines 31100 31100
Branches 4394 4394
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Hits 31100 31100
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Reviewer's GuideRefactored the PrintButton component to modularize print logic, hide the modal during printing, and add full support for rendering and restoring canvas elements by moving them into placeholders before print and back after. Sequence Diagram for Enhanced Print Process with Canvas SupportsequenceDiagram
actor User
participant PrintScript as "PrintButton.razor.js"
participant DOM
participant BrowserPrint as "Browser Print Service"
User->>PrintScript: Clicks PrintButton, triggers print(el)
PrintScript->>DOM: Hide associated modal
PrintScript->>PrintScript: Call createPrintContent(modalBody)
activate PrintScript
PrintScript->>DOM: Get canvas elements from modalBody
loop For each canvas in modalBody
PrintScript->>DOM: Create placeholder for canvas (via createCanvasPlaceholder)
PrintScript->>DOM: Move canvas to print view (via moveCanvas)
end
PrintScript->>DOM: Create printContainer with content & modified canvases
deactivate PrintScript
PrintScript->>DOM: Append printContainer to document body
PrintScript->>BrowserPrint: window.print()
BrowserPrint-->>User: Show Print Dialog
User-->>BrowserPrint: Interact with Print Dialog (Confirm/Cancel)
PrintScript->>PrintScript: Call restoreCanvas(printContainer)
activate PrintScript
loop For each canvas in printContainer
PrintScript->>DOM: Move canvas back to original DOM placeholder (via moveCanvas)
PrintScript->>DOM: Remove original DOM placeholder
end
deactivate PrintScript
PrintScript->>DOM: Remove printContainer from document body
PrintScript->>DOM: Show associated modal
Updated Class Diagram for PrintButton.razor.js ModuleclassDiagram
class PrintButtonModule {
<<JavaScript Module: PrintButton.razor.js>>
+init(id): void
+print(el): void
+createPrintContent(content): HTMLDivElement
+createCanvasPlaceholder(canvas: HTMLCanvasElement): void
+moveCanvas(canvas: HTMLCanvasElement, target: HTMLElement): void
+restoreCanvas(printContentEl: HTMLDivElement): void
+dispose(id): void
}
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fixes #6202
Summary By Copilot
Regression?
Risk
Verification
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☑️ Self Check before Merge
Summary by Sourcery
Enable the PrintButton component to correctly render and print canvas elements by moving them into a temporary print container and restoring the original canvases after printing.
New Features:
Bug Fixes:
Enhancements: