mirror of https://github.com/anoshenko/rui.git
89 lines
2.1 KiB
Go
89 lines
2.1 KiB
Go
package rui
|
|
|
|
// ListAdapter - the list data source
|
|
type ListAdapter interface {
|
|
// ListSize returns the number of elements in the list
|
|
ListSize() int
|
|
|
|
// ListItem creates a View of a list item at the given index
|
|
ListItem(index int, session Session) View
|
|
|
|
// IsListItemEnabled returns the status (enabled/disabled) of a list item at the given index
|
|
IsListItemEnabled(index int) bool
|
|
}
|
|
|
|
type textListAdapter struct {
|
|
items []string
|
|
views []View
|
|
params Params
|
|
}
|
|
|
|
type viewListAdapter struct {
|
|
items []View
|
|
}
|
|
|
|
// NewTextListAdapter create the new ListAdapter for a string list displaying. The second argument is parameters of a TextView item
|
|
func NewTextListAdapter(items []string, params Params) ListAdapter {
|
|
if items == nil {
|
|
return nil
|
|
}
|
|
adapter := new(textListAdapter)
|
|
adapter.items = items
|
|
if params != nil {
|
|
adapter.params = params
|
|
} else {
|
|
adapter.params = Params{}
|
|
}
|
|
adapter.views = make([]View, len(items))
|
|
return adapter
|
|
}
|
|
|
|
// NewTextListAdapter create the new ListAdapter for a view list displaying
|
|
func NewViewListAdapter(items []View) ListAdapter {
|
|
if items != nil {
|
|
adapter := new(viewListAdapter)
|
|
adapter.items = items
|
|
return adapter
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (adapter *textListAdapter) ListSize() int {
|
|
return len(adapter.items)
|
|
}
|
|
|
|
func (adapter *textListAdapter) ListItem(index int, session Session) View {
|
|
if index < 0 || index >= len(adapter.items) {
|
|
return nil
|
|
}
|
|
|
|
if adapter.views[index] == nil {
|
|
adapter.params[Text] = adapter.items[index]
|
|
adapter.views[index] = NewTextView(session, adapter.params)
|
|
}
|
|
|
|
return adapter.views[index]
|
|
}
|
|
|
|
func (adapter *textListAdapter) IsListItemEnabled(index int) bool {
|
|
return true
|
|
}
|
|
|
|
func (adapter *viewListAdapter) ListSize() int {
|
|
return len(adapter.items)
|
|
}
|
|
|
|
func (adapter *viewListAdapter) ListItem(index int, session Session) View {
|
|
if index >= 0 && index < len(adapter.items) {
|
|
return adapter.items[index]
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (adapter *viewListAdapter) IsListItemEnabled(index int) bool {
|
|
if index >= 0 && index < len(adapter.items) {
|
|
return !IsDisabled(adapter.items[index])
|
|
}
|
|
return true
|
|
}
|