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[dynui] Generalise mechanisms for looking up user interface items

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Generalise the ability to look up a dynamic user interface item by
index or by shortcut key, to allow for reuse of this code for
interactive forms.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2024-06-20 14:16:18 -07:00
parent 5719cde838
commit c8e50bb0fd
3 changed files with 52 additions and 32 deletions
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38
src/core/dynui.c
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@@ -131,6 +131,7 @@ struct dynamic_item * add_dynui_item ( struct dynamic_ui *dynui,
}
strcpy ( text_copy, text );
item->text = text_copy;
item->index = dynui->count++;
item->shortcut = shortcut;
item->is_default = is_default;
@@ -180,3 +181,40 @@ struct dynamic_ui * find_dynui ( const char *name ) {
return NULL;
}
/**
* Find dynamic user interface item by index
*
* @v dynui Dynamic user interface
* @v index Index
* @ret item User interface item, or NULL if not found
*/
struct dynamic_item * dynui_item ( struct dynamic_ui *dynui,
unsigned int index ) {
struct dynamic_item *item;
list_for_each_entry ( item, &dynui->items, list ) {
if ( index-- == 0 )
return item;
}
return NULL;
}
/**
* Find dynamic user interface item by shortcut key
*
* @v dynui Dynamic user interface
* @v key Shortcut key
* @ret item User interface item, or NULL if not found
*/
struct dynamic_item * dynui_shortcut ( struct dynamic_ui *dynui, int key ) {
struct dynamic_item *item;
list_for_each_entry ( item, &dynui->items, list ) {
if ( key && ( key == item->shortcut ) )
return item;
}
return NULL;
}