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widget: [API] rename scrollbar update method to update

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This matches the convention of other state update methods. While here, remove useless
dimensions return. The update doesn't draw anything, so there are no dimensions involved.

Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
This commit is contained in:
Chris Waldon
2023-12-07 12:12:32 -05:00
parent c458eb30f0
commit e32417353a
2 changed files with 4 additions and 6 deletions
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widget/list.go
+3 -5
View File
@@ -29,8 +29,8 @@ type Scrollbar struct {
oldDragPos float32
}
// Layout updates the internal state of the scrollbar based on events
// since the previous call to Layout. The provided axis will be used to
// Update updates the internal state of the scrollbar based on events
// since the previous call to Update. The provided axis will be used to
// normalize input event coordinates and constraints into an axis-
// independent format. viewportStart is the position of the beginning
// of the scrollable viewport relative to the underlying content expressed
@@ -39,7 +39,7 @@ type Scrollbar struct {
// as a value in the range [0,1]. For example, if viewportStart is 0.25
// and viewportEnd is .5, the viewport described by the scrollbar is
// currently showing the second quarter of the underlying content.
func (s *Scrollbar) Layout(gtx layout.Context, axis layout.Axis, viewportStart, viewportEnd float32) layout.Dimensions {
func (s *Scrollbar) Update(gtx layout.Context, axis layout.Axis, viewportStart, viewportEnd float32) {
// Calculate the length of the major axis of the scrollbar. This is
// the length of the track within which pointer events occur, and is
// used to scale those interactions.
@@ -137,8 +137,6 @@ func (s *Scrollbar) Layout(gtx layout.Context, axis layout.Axis, viewportStart,
// Process events from the indicator so that hover is
// detected properly.
_ = s.indicator.Update(gtx)
return layout.Dimensions{}
}
// AddTrack configures the track click listener for the scrollbar to use
widget/material/list.go
+1 -1
View File
@@ -144,7 +144,7 @@ func (s ScrollbarStyle) Layout(gtx layout.Context, axis layout.Axis, viewportSta
gtx.Constraints.Min = convert(gtx.Constraints.Min)
gtx.Constraints.Max = gtx.Constraints.Min
s.Scrollbar.Layout(gtx, axis, viewportStart, viewportEnd)
s.Scrollbar.Update(gtx, axis, viewportStart, viewportEnd)
// Darken indicator if hovered.
if s.Scrollbar.IndicatorHovered() {