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Expose InteractiveViewer onInteraction-methods #594

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Expose InteractiveViewer onInteraction-methods #594

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15 changes: 15 additions & 0 deletions packages/pdfx/lib/src/viewer/pinch/pdf_view_pinch.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,9 @@ class PdfViewPinch extends StatefulWidget {
this.onPageChanged,
this.onDocumentLoaded,
this.onDocumentError,
this.onInteractionStart,
this.onInteractionUpdate,
this.onInteractionEnd,
this.builders = const PdfViewPinchBuilders<DefaultBuilderOptions>(
options: DefaultBuilderOptions(),
),
Expand Down Expand Up @@ -76,6 +79,15 @@ class PdfViewPinch extends StatefulWidget {
/// Pdf widget page background decoration
final BoxDecoration backgroundDecoration;

/// Called when the user starts a pan or scale gesture on the widget.
final GestureScaleStartCallback? onInteractionStart;

/// Called when the user ends a pan or scale gesture on the widget.
final GestureScaleEndCallback? onInteractionEnd;

/// Called when the user updates a pan or scale gesture on the widget.
final GestureScaleUpdateCallback? onInteractionUpdate;

/// Default page builder
@override
State<PdfViewPinch> createState() => _PdfViewPinchState();
Expand Down Expand Up @@ -564,6 +576,9 @@ class _PdfViewPinchState extends State<PdfViewPinch>
_reLayout(viewSize);
final docSize = _docSize ?? const Size(10, 10); // dummy size
return InteractiveViewer(
onInteractionStart: widget.onInteractionStart,
onInteractionEnd: widget.onInteractionEnd,
onInteractionUpdate: widget.onInteractionUpdate,
transformationController: _controller,
scrollControls: InteractiveViewerScrollControls.scrollPans,
constrained: false,
Expand Down