mirror of https://github.com/anoshenko/rui.git
62 lines
1.9 KiB
Go
62 lines
1.9 KiB
Go
package rui
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import "strings"
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// Constants which represent [View] specific focus events properties
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const (
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// FocusEvent is the constant for "focus-event" property tag.
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//
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// Used by `View`.
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// Occur when the view takes input focus.
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//
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// General listener format:
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// `func(View)`.
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//
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// where:
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// view - Interface of a view which generated this event.
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//
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// Allowed listener formats:
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// `func()`.
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FocusEvent PropertyName = "focus-event"
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// LostFocusEvent is the constant for "lost-focus-event" property tag.
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//
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// Used by `View`.
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// Occur when the View lost input focus.
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//
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// General listener format:
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// `func(view rui.View)`.
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//
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// where:
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// view - Interface of a view which generated this event.
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//
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// Allowed listener formats:
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// `func()`.
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LostFocusEvent PropertyName = "lost-focus-event"
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)
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func focusEventsHtml(view View, buffer *strings.Builder) {
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if view.Focusable() {
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for _, tag := range []PropertyName{FocusEvent, LostFocusEvent} {
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if js, ok := eventJsFunc[tag]; ok {
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buffer.WriteString(js.jsEvent)
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buffer.WriteString(`="`)
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buffer.WriteString(js.jsFunc)
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buffer.WriteString(`(this, event)" `)
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}
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}
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}
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}
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// GetFocusListeners returns a FocusListener list. If there are no listeners then the empty list is returned
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// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
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func GetFocusListeners(view View, subviewID ...string) []func(View) {
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return getNoArgEventListeners[View](view, subviewID, FocusEvent)
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}
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// GetLostFocusListeners returns a LostFocusListener list. If there are no listeners then the empty list is returned
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// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
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func GetLostFocusListeners(view View, subviewID ...string) []func(View) {
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return getNoArgEventListeners[View](view, subviewID, LostFocusEvent)
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}
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