Day 37: NSResponder actions (5)
A few days ago I showed how I initialized all my actions, and keep in mind I stored all of them in a dictionary. Today I’ll go from toolbar actions to a full toolbar. We start with this dictionary of actions we already have but note that we probably have actions we don’t want in our toolbar. I gave action a -showInToolbar method that subclasses override, similarly there is an -isSelectable method. Below is a quick outline of my MSToolbarConstructor class:
- (NSArray *)allActions
{
return [[actions allValues] filterUsingBlock:^(id object) {
return [object showInToolbar];
}];
}
- (NSArray *)toolbarAllowedItemIdentifiers:(NSToolbar *)toolbar
{
return [[[self allActions] valueForKey:@"identifier"]
arrayByAddingObjectsFromArray:[self standardToolbarIdentifiers]];
}
- (NSArray *)toolbarSelectableItemIdentifiers:(NSToolbar *)toolbar
{
return [[[self allActions] filterUsingBlock:^(id object) {
return [object isSelectable];
}] valueForKey:@"identifier"];
}
- (NSToolbarItem *)toolbar:(NSToolbar *)toolbar
itemForItemIdentifier:(NSString *)itemIdentifier
willBeInsertedIntoToolbar:(BOOL)flag
{
return [[actions valueForKey:itemIdentifier]
toolbarItemWithSize:[toolbar sizeMode]];
}
Keep in mind that this series about NSResponder-based actions is not as much to share individual tips (I presume you know how to use NSToolbarItem) but more to outline the a particular line of thought I’ve followed for my app. I hope that you find it somehow thought-provoking, even if you disagree. And of course if you do, I’d love to hear from you.
