August 2010 - MacRuby-devel - lists.macosforge.org

Cocoa Slides in MacRuby
by Matthew Smith 11 Sep '10

11 Sep '10

I'm looking at implementing the Cocoa Slides sample application (http://developer.apple.com/mac/library/samplecode/CocoaSlides/Introduction/…) in MacRuby. Has anyone attempted this yet or interested in contributing? Thanks, Matthew Smith

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`bytesize' does not work on NSStrings
by Alexander v. Below 27 Aug '10

27 Aug '10

Hello List, I am using MacRuby/Control Tower and have another stupid question. In somthing like this def call(env) res = @delegate.testEnvironment(env['REQUEST_PATH']) [200, { 'Content-Type' => 'text/html' }, res ] end I get the run time error: #<ArgumentError: method `bytesize' does not work on NSStrings> And indeed, "testEnvironment" does return an NSString. How can I convert this? Alex Bonus Question: This is in a Control Tower context, but "env" is always nil. I want to access the requests parameters (i.e. foo?bar=5). That was easy in Webrick, but I can not figure out how to do it in Control Tower @Joshua: Thanks a lot for your last reply! That helped me get going

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CVImageBufferRef vs __NSCFType
by Steven Parkes 27 Aug '10

27 Aug '10

I've got a callback for QTCaptureVideoPreviewOutput -captureOutput:didOutputVideoFrame:withSampleBuffer:fromConnection getting called in 0.6, but the result type for didOutputVideoFrame is coming is __NSCFType rather than CVImageBufferRef. Looks like the CV types are supposed to work?

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ControlTower/Rack question
by Alexander v. Below 25 Aug '10

25 Aug '10

Hello, if there is a better list to ask this question, please point me to it ... I have a -- possibly silly -- question on ControlTower/Rack. I should admit that I am kinda new to this whole thing.... My rack script has something like this: map '/foo' do $text = "foo" print $text run Proc.new {|env| [200, {"Content-Type" => "text/html"}, $text ] } end Now, it seems that this block is called immediately upon start, and the response is cached, i.e. it is not evaluated again when the resource /foo is actually read. What am I doing wrong? I want the block to be executed everytime that /foo is accessed. Thanks Alex

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A question about OSX APIs.
by Rob Gleeson 25 Aug '10

25 Aug '10

Hey MacRubyists, This question isn't strictly MacRuby related, but if I get an answer I'd like to try and implement it in MacRuby. The OSX WM doesn't seem to be able to treat a stack of windows as an individual stack that you can cycle through, for example an entire "Space" is treated as one stack. I'd like to mark or treat a group of windows overlapping each other as one "stack", and when an application in that stack has focus, a key binding(such as cmd+p, cmd+n) would cycle through that stack. My question really is, what APIs would I look at? Is it possible? Is it feasible? Thanks Rob ---- http://robgleeson.github.com Website http://github.com/robgleeson GitHub rob(a)flowof.info E-Mail

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Request for feedback on new tutorial
by Nick Ludlam 24 Aug '10

24 Aug '10

I've written up a first draft of a tutorial on taking C/C++, wrapping the code in a simple Obj-C class, then exporting this as a bundle which can be loaded by MacRuby. In this case, it's about wrapping the open-source TagLib library in order to extract ID3 tags from mp3 files. If people have the time, I'd really appreciate any feedback on things like length, clarity, and accuracy of describing steps in XCode etc etc. http://recoil.org/~nick/macruby/documentation/realworld-dynamic-bundles.html Thanks, Nick

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planning 0.7 release
by Laurent Sansonetti 24 Aug '10

24 Aug '10

Hi guys, With more than 100 tickets fixed, many improvements and fixes, I think it's time to make a new release of MacRuby. MacRuby trunk does not meet all the plans I had in mind for 0.7 (like full Rails support), but I think it's important to make a release now. We can continue working on Ruby compatibility in 0.8. For 0.6 we announced that MacRuby was stable for Cocoa development, and the Cocoa layer of MacRuby hasn't changed that much since, which is a good sign. If you have a MacRuby Cocoa app, please try it with MacRuby trunk (you can pick a nightly build) and let us know soon if you have any problem. I will go through the tracker and identify release blockers (feel free to reply to this e-mail if you have one in mind). Hopefully 0.7 can ship somewhere in September. Laurent

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Warnings from print operation
by Robert Rice 20 Aug '10

20 Aug '10

Hi Developers: I get the followings warning from my PrintOperation: SimpleX_ViewController.print 2010-08-15 12:25:12.609 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPrologueBBox:creationDate:createdBy:fonts:forWhom:pages:title:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.610 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endHeaderComments] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.612 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endPrologue] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.613 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.614 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.615 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPage:label:bBox:fonts:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.615 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginPageSetupRect:placement:] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.616 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) addToPageSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.617 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endPageSetup] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.617 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) beginTrailer] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. 2010-08-15 12:25:12.618 MacDriverLog-0.7[243:a0f] -[NSView(NSPrinting) endTrailer] was deprecated before Mac OS 10.0 and overrides of it are not being invoked anymore, starting in Mac OS 10.5. Looks like I may need to update something. Would this be a framework or a Ruby library? How would I update my system? Thanks, Bob Rice

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Foundation tool OS X Service, Garbage Collection, MacRuby: why my NSRunLoop won’t loop in acceptInputForMode:beforeDate:?
by Caio Chassot 19 Aug '10

19 Aug '10

(repost from http://stackoverflow.com/questions/3519436 under recommendation from @lrz) I suspect this is not strictly a MacRuby issue since I can more or less cause it in pure Objective-C with GC. I observe the same NSRunLoop issue in Nu, in addition to crashing. Anyhoo: I'm writing an OS X Service with MacRuby. It upcases the selected text. It mostly works, but… well, here's all of it: #!/usr/local/bin/macruby # encoding: UTF-8 framework 'Foundation' framework 'AppKit' class KCUpcase def upcase(pasteboard, userData: s_userdata, error: s_error) incoming_string = pasteboard.stringForType "public.utf8-plain-text" outgoing_string = incoming_string.upcase pasteboard.clearContents pasteboard.setString(outgoing_string, forType: "public.utf8-plain-text") end end NSLog "Starting…" NSRegisterServicesProvider(KCUpcase.new, "Upcase") NSLog "Registered…" NSRunLoop.currentRunLoop\ .acceptInputForMode(NSDefaultRunLoopMode, beforeDate:NSDate.dateWithTimeIntervalSinceNow(10.0)) NSLog "Done." It's just a Foundation tool, not part of an Application. Now, see the `NSRunLoop…` line? That doesn't really work. The program exits imediately. I suppose the loop runs once and then exits. Anyhoo, the fact is that it's definititely not waiting 10s for input. So, here's what I did instead: NSRunLoop.currentRunLoop.runUntilDate NSDate.dateWithTimeIntervalSinceNow(60.0) And that works, but naturally the program sticks around for 60s, and it's a kludge. So I implemented the whole thing in Objective C (Including KCUpcase, which is not shown). And… it works. With manual memory management. Once I switch to GC (`-fobjc-gc-only`), it exits imediately same as the MacRuby version. #import <Foundation/Foundation.h> #import "KCUpcase.h" int main (int argc, const char * argv[]) { NSLog(@"Starting…"); NSRegisterServicesProvider([[KCUpcase alloc] init], @"KCUpcase"); NSLog(@"Registered…"); [[NSRunLoop currentRunLoop] acceptInputForMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:10.0]]; NSLog(@"Done."); return 0; } But, alas, the fix is easy: because this is a Foundation tool (not an NSApplication), it seems I have to start GC manually by calling `objc_startCollectorThread`. Here: #import <objc/objc-auto.h> // ... NSLog(@"Starting…"); objc_startCollectorThread(); NSRegisterServicesProvider([[KCUpcase alloc] init], @"KCUpcase"); // ... Ok, but what's up with MacRuby then? Let's throw it into the mix: #import <MacRuby/MacRuby.h> // ... NSLog(@"Starting…"); objc_startCollectorThread(); // This magic stops working once we add MacRuby [[MacRuby sharedRuntime] evaluateString: @"$stderr.puts 'hi from macruby'"]; NSRegisterServicesProvider([[KCUpcase alloc] init], @"KCUpcase"); // ... And, again, it's not waiting in the loop. And, again, ussing the `runUntilDate:` kludge instead of `acceptInputForMode:beforeDate:` works: NSLog(@"Starting…"); [[MacRuby sharedRuntime] evaluateString: @"$stderr.puts 'hi from macruby'"]; NSRegisterServicesProvider([[KCUpcase alloc] init], @"KCUpcase"); NSLog(@"Registered…"); // Hmmm… [[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:10.0]]; NSLog(@"Done."); return 0; **So, I suppose I'm missing something terribly obvious. Please enlighten me.** --- And by the way, the full MacRuby version of the project is available (see below) with a Rake task that'll build and install it in `~/Library/Services`. Then you need to enable its checkbox in Services in the Keyboard Preference Pane (once). * view: http://gist.github.com/537075 * download: http://gist.github.com/gists/537075/download * clone: git clone git://gist.github.com/537075.git **Aside**: Interestingly, I tried calling `NSLog` inside the MacRuby string, and it raised `NoMethodError`. What gives?

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[MacRuby] Require RubyGems quesions
by Alexander v. Below 19 Aug '10

19 Aug '10

Hello, I have a MacRuby script which, among other things, requires rubygems. It works very nice when I call it in the terminal (i.e. "macruby test.rb"), but when I try to execute it in a Cocoa App using [[MacRuby sharedRuntime] evaluateFileAtPath:path];, I get a LoadError exception: /Users/below/dev/build/Debug/(eval):1:in `<main>': no such file to load -- rubygems (LoadError) How can I remedy this, and make rubygems known to the script running in my app? Thanks Alex 1) The issue is reproducible with this scrip, suggested by a user on this list. Thanks again: require 'rubygems' require 'control_tower' require 'rack/utils' server_options = { :port => 3001, :host => '0.0.0.0', :concurrent => false } app = Rack::Builder.new do map "/" do run Rack::File.new("/Users/below/Sites/") end end.to_app @s = ControlTower::Server.new(app, server_options) if @s puts 'Starting control tower webserver' @s.start else puts "ERROR: Couldnt build server" end

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