buildPopover method

Widget buildPopover(BuildContext context)

Implementation

Widget buildPopover(BuildContext context) {
  final theme = Theme.of(context);
  final surfaceOpacity = widget.surfaceOpacity ?? theme.surfaceOpacity;
  final surfaceBlur = widget.surfaceBlur ?? theme.surfaceBlur;
  return MouseRegion(
    hitTestBehavior: HitTestBehavior.translucent,
    onEnter: (_) {
      _hoverCount++;
    },
    onExit: (event) {
      int currentHoverCount = ++_hoverCount;
      Future.delayed(kDebounceDuration, () {
        if (currentHoverCount == _hoverCount && mounted) {
          close();
        }
      });
    },
    child: AnimatedBuilder(
        animation: _activeIndex,
        builder: (context, child) {
          return AnimatedValueBuilder<double>(
            value: _activeIndex.value.toDouble(),
            duration: const Duration(milliseconds: 300),
            curve: Curves.easeOutCubic,
            builder: (context, value, child) {
              int currentIndex = _activeIndex.value;
              List<Widget> children = [];
              if (currentIndex - 1 >= 0) {
                children.add(
                  Positioned(
                    top: 0,
                    left: 0,
                    child: Opacity(
                      opacity: (1 + value - currentIndex).clamp(0.0, 1.0),
                      child: FractionalTranslation(
                        translation: Offset(-value + currentIndex - 1, 0),
                        child: buildContent(currentIndex - 1),
                      ),
                    ),
                  ),
                );
              }
              if (currentIndex + 1 < widget.children.length) {
                children.add(
                  Positioned(
                    top: 0,
                    right: 0,
                    child: Opacity(
                      opacity: (1 - value + currentIndex).clamp(0.0, 1.0),
                      child: FractionalTranslation(
                        translation: Offset(-value + currentIndex + 1, 0),
                        child: buildContent(currentIndex + 1),
                      ),
                    ),
                  ),
                );
              }
              return OutlinedContainer(
                clipBehavior: Clip.antiAlias,
                borderRadius: theme.borderRadiusMd,
                surfaceOpacity: surfaceOpacity,
                surfaceBlur: surfaceBlur,
                child: Stack(
                  children: [
                    ...children,
                    FractionalTranslation(
                      translation: Offset(-value + currentIndex, 0),
                      child: buildContent(currentIndex),
                    ),
                  ],
                ),
              );
            },
          );
        }),
  );
}