101 lines
2.0 KiB
Go
101 lines
2.0 KiB
Go
package widgets
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import (
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"time"
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"fyne.io/fyne/v2"
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"fyne.io/fyne/v2/lang"
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"fyne.io/fyne/v2/theme"
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"fyne.io/fyne/v2/widget"
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"github.com/dweymouth/supersonic/ui/util"
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)
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// SearchEntry is a search entry widget that will issue a search command
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// (aka call OnSearched) when a short span of time has elapsed since
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// the user typed into the widget.
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type SearchEntry struct {
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widget.Entry
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OnSearched func(string)
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}
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func NewSearchEntry() *SearchEntry {
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sf := &SearchEntry{}
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sf.ExtendBaseWidget(sf)
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sf.Init()
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return sf
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}
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// For use only by extending widgets
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func (sf *SearchEntry) Init() {
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sf.PlaceHolder = lang.L("Search")
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sf.ActionItem = NewClearTextButton(func() {
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sf.SetText("")
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})
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debounceFunc := util.NewDebouncer(200*time.Millisecond, func() {
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sf.sendSearch(sf.Entry.Text)
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})
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sf.Entry.OnChanged = func(_ string) {
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if sf.updateActionButton() {
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sf.ActionItem.Refresh()
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}
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debounceFunc()
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}
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}
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func (s *SearchEntry) TypedKey(e *fyne.KeyEvent) {
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if e.Name == fyne.KeyEscape {
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s.SetText("")
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fyne.CurrentApp().Driver().CanvasForObject(s).Unfocus()
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return
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}
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s.Entry.TypedKey(e)
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}
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func (s *SearchEntry) Refresh() {
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s.updateActionButton()
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s.Entry.Refresh()
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}
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func (s *SearchEntry) MinSize() fyne.Size {
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return fyne.NewSize(200, s.Entry.MinSize().Height)
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}
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func (s *SearchEntry) updateActionButton() bool {
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btn := s.ActionItem.(*clearTextButton)
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oldResouce := btn.Resource
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if s.Text == "" {
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btn.Resource = theme.SearchIcon()
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} else {
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btn.Resource = theme.ContentClearIcon()
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}
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return oldResouce != btn.Resource
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}
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var _ fyne.Tappable = (*clearTextButton)(nil)
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type clearTextButton struct {
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widget.Icon
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OnTapped func()
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}
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func (s *SearchEntry) sendSearch(text string) {
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if s.OnSearched != nil {
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s.OnSearched(text)
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}
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}
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func NewClearTextButton(onTapped func()) *clearTextButton {
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c := &clearTextButton{OnTapped: onTapped}
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c.ExtendBaseWidget(c)
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c.Resource = theme.SearchIcon()
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return c
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}
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func (c *clearTextButton) Tapped(*fyne.PointEvent) {
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if c.OnTapped != nil {
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c.OnTapped()
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}
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}
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