Navigation Services support for REALbasic
TweetFollow Us on Twitter

Navigation Services support for REALbasic

Navigation Services support extended to Customization:

Version History
Navigation Services for MacOS 8, 9 and X.

Version 3.0, September 14, 2002
--added a new class: NavCustomization that allows the client to customize a
NavDialog Window. To allow this, NavReply was extended with an additional
call: IsFolder. NavCustomization depends on usage of a DITL resource, and
for this a new plugin was designed: ResourceEdit Plugin. See the
documentation for this plugin, to obtain the details.

NavDialog Plugin:

Yes a bunch of classes have been implemented to support the Navigation
Services, but they all make sense. Let's go over them one by one starting
with probably the most important one. Don't make the mistake that one does
the actual saving or opening of a folderItem. This plugin supports the
Navigation DialogWindows and their manipulations. These manipulations are
the key to set the NavServices to your own needs. And that's what it's all
about. But why this plugin when REALbasic currently support some of these
manipulations? Well, for one thing, this plugin tries to support almost
every aspect of the Navigation Services. The classes have been numerous to
provide easy support with little or no coding required in the REALbasic
environment.

NavDialog:
The class that calls one of the Navigation Services, i.e., putting up the
window. The class has different methods to call the NavDialog Window and
has properties that allows you to determine what file(s) should be listed
you can determine with the NavTypeList class. You can further manipulate
the appearance of items in the NavDialog Window with the NavDialogOptions
class. The NavDialogOptions are numerous, i.e., you can define an extended
popupMenu, listing categories of FileTypes. This means that while the
NavDialog is up, you can adjust the filtering of files. Another important
property of the NavDialog class is the NavUserAction class. This class
messages the final reply to the Navigation Services in the form of a
NavReply class.

NavReply:
An instance of the NavReply class is obtained via the NavUserAction class.
NavReply can return multiple folderItems, depending how the NavDialog Class
was set up. In addition, NavReply can be obtained from the NavDialog.reply
property. Retrieval of the Reply in this case can be hazardous,
specifically in the OSX environment. The reason is the immediate returning
from the methods defined in NavDialog. It may be a difficult concept, but
immediate returning means that additional code after calling a method of
the NavDialog instance is already executed, while the user has not done
anything yet with the NavDialog Window. It's the carbon way. The classical
way does not deal with the immediate returning; Your code halts at the
method until the user has done something with the window. It would be a
very good habit to use the UserAction class to obtain the instance of the
NavReply, and it'll also work in the classic environment.

NavTypeList:
This class is used to provide a list of fileTypes the NavDialog Window
should expose to the user. it is up to you to populate this list, while you
also can omit the NavTypeList. It is specifically important when your
application has its own signature. The creator type becomes very important
in a build.

NavDialogOptions:
This class is required to drive the NavDialog Window into a cetain state.
The class has numerous methods to set a banner or message in the Navdialog
window, changing captions, setting the windowModality of the NavDialog
(MacOSX). This class also has another class as property,
NavDialogOptionsFlags, which is automatically instantiated when you
instantiate the NavDialogOptions class.

NavDialogOptionFlags:
A class that manipulates the behavior of the NavDialog window. The property
names in principle provide information about the effect it will have.

NavUserAction:
A class that provide access to the user action. If the user accepts a
Navigation dialog, one of the events is being fired, and you as the
programmer can respond accordingly. Why not having defined these events as
events of the NavDialog Class? Well, you can keep one instance of the
NavDialog Class, and exchange instances of NavUserAction.

NavCallback:

NavCallback provides additional info and manipulates a NavDialog. When
subclassed, you can block opening, or saving or block creation of a new
folder. You can monitor what files are being selected by the client, such
that when the client cancels the Navdialog, you still know what the last
folderitem was that was selected. NavCallback is a natural enhancement of
the Navigation Services the MacOS provides.

NavCustomization:

This class is required when the client wants to add additional controls in
the Navdialog. The class relies on usage of a DITL and a DLOG resource.
DITL is a list of dialog items, each of the items has a unique id, starting
with 1 for the first item. Navigation services, however, will offset these
id's by the number of navDialog items present. NavCustomization has
numerous methods to influence responses to the NavDialog; the events
provide information required to implement the customized behavior of the
Navdialog. You need to utilize the ResourceEdit Plugin to take advantage.

Sincerely,

Alfred N. Van Hoek, Ph.D. http://homepage.mac.com/vanhoek/

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Latest Forum Discussions

See All

Six fantastic ways to spend National Vid...
As if anyone needed an excuse to play games today, I am about to give you one: it is National Video Games Day. A day for us to play games, like we no doubt do every day. Let’s not look a gift horse in the mouth. Instead, feast your eyes on this... | Read more »
Old School RuneScape players turn out in...
The sheer leap in technological advancements in our lifetime has been mind-blowing. We went from Commodore 64s to VR glasses in what feels like a heartbeat, but more importantly, the internet. It can be a dark mess, but it also brought hundreds of... | Read more »
Today's Best Mobile Game Discounts...
Every day, we pick out a curated list of the best mobile discounts on the App Store and post them here. This list won't be comprehensive, but it every game on it is recommended. Feel free to check out the coverage we did on them in the links below... | Read more »
Nintendo and The Pokémon Company's...
Unless you have been living under a rock, you know that Nintendo has been locked in an epic battle with Pocketpair, creator of the obvious Pokémon rip-off Palworld. Nintendo often resorts to legal retaliation at the drop of a hat, but it seems this... | Read more »
Apple exclusive mobile games don’t make...
If you are a gamer on phones, no doubt you have been as distressed as I am on one huge sticking point: exclusivity. For years, Xbox and PlayStation have done battle, and before this was the Sega Genesis and the Nintendo NES. On console, it makes... | Read more »
Regionally exclusive events make no sens...
Last week, over on our sister site AppSpy, I babbled excitedly about the Pokémon GO Safari Days event. You can get nine Eevees with an explorer hat per day. Or, can you? Specifically, you, reader. Do you have the time or funds to possibly fly for... | Read more »
As Jon Bellamy defends his choice to can...
Back in March, Jagex announced the appointment of a new CEO, Jon Bellamy. Mr Bellamy then decided to almost immediately paint a huge target on his back by cancelling the Runescapes Pride event. This led to widespread condemnation about his perceived... | Read more »
Marvel Contest of Champions adds two mor...
When I saw the latest two Marvel Contest of Champions characters, I scoffed. Mr Knight and Silver Samurai, thought I, they are running out of good choices. Then I realised no, I was being far too cynical. This is one of the things that games do best... | Read more »
Grass is green, and water is wet: Pokémo...
It must be a day that ends in Y, because Pokémon Trading Card Game Pocket has kicked off its Zoroark Drop Event. Here you can get a promo version of another card, and look forward to the next Wonder Pick Event and the next Mass Outbreak that will be... | Read more »
Enter the Gungeon review
It took me a minute to get around to reviewing this game for a couple of very good reasons. The first is that Enter the Gungeon's style of roguelike bullet-hell action is teetering on the edge of being straight-up malicious, which made getting... | Read more »

Price Scanner via MacPrices.net

Take $150 off every Apple 11-inch M3 iPad Air
Amazon is offering a $150 discount on 11-inch M3 WiFi iPad Airs right now. Shipping is free: – 11″ 128GB M3 WiFi iPad Air: $449, $150 off – 11″ 256GB M3 WiFi iPad Air: $549, $150 off – 11″ 512GB M3... Read more
Apple iPad minis back on sale for $100 off MS...
Amazon is offering $100 discounts (up to 20% off) on Apple’s newest 2024 WiFi iPad minis, each with free shipping. These are the lowest prices available for new minis among the Apple retailers we... Read more
Apple’s 16-inch M4 Max MacBook Pros are on sa...
Amazon has 16-inch M4 Max MacBook Pros (Silver and Black colors) on sale for up to $410 off Apple’s MSRP right now. Shipping is free. Be sure to select Amazon as the seller, rather than a third-party... Read more
Red Pocket Mobile is offering a $150 rebate o...
Red Pocket Mobile has new Apple iPhone 17’s on sale for $150 off MSRP when you switch and open up a new line of service. Red Pocket Mobile is a nationwide MVNO using all the major wireless carrier... Read more
Switch to Verizon, and get any iPhone 16 for...
With yesterday’s introduction of the new iPhone 17 models, Verizon responded by running “on us” promos across much of the iPhone 16 lineup: iPhone 16 and 16 Plus show as $0/mo for 36 months with bill... Read more
Here is a summary of the new features in Appl...
Apple’s September 2025 event introduced major updates across its most popular product lines, focusing on health, performance, and design breakthroughs. The AirPods Pro 3 now feature best-in-class... Read more
Apple’s Smartphone Lineup Could Use A Touch o...
COMMENTARY – Whatever happened to the old adage, “less is more”? Apple’s smartphone lineup. — which is due for its annual refresh either this month or next (possibly at an Apple Event on September 9... Read more
Take $50 off every 11th-generation A16 WiFi i...
Amazon has Apple’s 11th-generation A16 WiFi iPads in stock on sale for $50 off MSRP right now. Shipping is free: – 11″ 11th-generation 128GB WiFi iPads: $299 $50 off MSRP – 11″ 11th-generation 256GB... Read more
Sunday Sale: 14-inch M4 MacBook Pros for up t...
Don’t pay full price! Amazon has Apple’s 14-inch M4 MacBook Pros (Silver and Black colors) on sale for up to $220 off MSRP right now. Shipping is free. Be sure to select Amazon as the seller, rather... Read more
Mac mini with M4 Pro CPU back on sale for $12...
B&H Photo has Apple’s Mac mini with the M4 Pro CPU back on sale for $1259, $140 off MSRP. B&H offers free 1-2 day shipping to most US addresses: – Mac mini M4 Pro CPU (24GB/512GB): $1259, $... Read more

Jobs Board

All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.