Does [myObject valueForString:@"param"] == [NSNull nul] ? @"X":@"Y" mean the same as [myObject valueForString:@"param"] ? @"X":@"Y"
Hi all, Does these two things mean the same? [myObject valueForString:@"param"] == [NSNull nul] ? @"X":@"Y" [myObject valueForString:@"param"] ? @"X":@"Y" Thanks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Does [myObject valueForString:@"param"] == [NSNull nul] ? @"X":@"Y" mean the same as [myObject valueForString:@"param"] ? @"X":@"Y"
On 17/11/2010, at 8:24 PM, Devraj Mukherjee wrote: > Does these two things mean the same? > > [myObject valueForString:@"param"] == [NSNull nul] ? @"X":@"Y" > [myObject valueForString:@"param"] ? @"X":@"Y" No. First, I assume you mean -valueForKey:, not -valueForString:, plus it's +null, not +nul. Pedantry aside, the comparisons are still not equivalent, even allowing for the logical inversion you have introduced. In the second case, @"X" will be chosen if the expression evaluates to true. That will be when the value returned is NOT nil. In the first case, @"X" will be chosen when the expression evaluates to equal the address (pointer) of the object [NSNull null]. Since that's a real, concrete object, it will be some valid address, not nil. If you want @"X" to be chosen if the value is nil OR [NSNull null], then the correct expression would be just that: if([myObject valueForKey:key] == nil || [myObject valueForKey:key] == [NSNull null]) return @"X"; else return @"Y"; You could write this using the tertiary operator syntax, but since it's clearly confusing you, I'd stick with if/else. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: What is Mac's "custom" for an agent to display its GUI?
On Nov 16, 2010, at 8:27 PM, eveningnick eveningnick wrote: > All i could think of - is installing a global event tap (but i need > accessibility Enabled then all the time - it is neither a good idea) > and watch some Shortcut pressed on a keyboard. If you decide to use a hot key (keyboard shortcut), don't use Event Taps. Instead, use the Carbon hot key API. It does not require that accessibility be enabled, and it's more efficient. Sample code is available on Apple's Developer site. (Note that I am NOT suggesting that a hot key is the best option for what you're doing. Others have made better suggestions already.) -- Bill Cheeseman - b...@cheeseman.name ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Core Data Document-Based Application with Global Persistent Store
I've got a document-based Core Data application which works as is. I would like
to add support for a global persistent store to hold a library of items.
I've read most of the relevant docs, and understand that I should use
configurations in the managed object models. I've defined two configurations:
"DocumentConfiguration" and "LibraryConfiguration". The entities in the
document configuration are only in the document configuration, and the entities
in the library configuration are only in the library configuration -- i.e., no
overlap.
The docs then say "You then use this model when you create a coordinator". But
I don't actually create my own persistent store coordinator since I'm using the
default NSPersistentDocument coordinator.
A few questions on how best to proceed and help clear up any misunderstandings
I might have:
1. Would I obtain the NSPersistentStoreCoordinator in the NSPersistentDocument
and then add a new persistent store to it along the lines of:
NSPersistentStoreCoordinator * coordinator = [[myDocument
managedObjectContext] persistentStoreCoordinator];
[coordinator addPersistentStoreWithType:NSXMLStoreType
configuration:@"LibraryConfiguration"
URL:url
options:nil
error:&error];
?
I'm thinking that this may be a problem because I haven't provided the other
configuration definition ("DocumentConfiguration") in the
NSPersistentDocument's persistent store coordinator as I'm using the default
provided by NSPersistentDocument. I'm guessing it would probably use nil when
the time came to save the document. And if so, would this be a problem? I.e.,
how would the coordinator know which persistent store to save an entity with a
given configuration definition if the same configurations are not defined for
all the persistent stores (in this case two)? Am I able to set the
configuration (to "DocumentConfiguration") of the NSPersistentDocument's
persistent store before it has been created/saved? From the
NSPersistentDocument docs:
"Saving a new document adds a store of the default type with the chosen URL and
invokes save: on the context. For an existing document, a save just invokes
save: on the context."
2. Would it be better to create my own NSPersistentStoreCoordinator and
NSManagedObjectContext instances, adding the two persistent stores with
configurations defined, and then make the NSPersistentDocument use these
NSPersistentStoreCoordinator and NSManagedObjectContext instances, and free the
old ones? If so, how would I specify the url for the NSPersistentDocument for
the addPersistentStoreWithType:... method? It seems this URL is only known once
the untitled document has been saved. (Testing this, there does not appear to
be any temporary persistent store (via method persistentStores on the
persistent store coordinator) until the document is saved for the first time).
3. Or would it be better to leave NSPersistentDocument alone, and create my own
NSPersistentStoreCoordinator instance that I use exclusively for the persistent
library store and managed library object model? The docs say that multiple
instances of NSPersistentStoreCoordinator should be used in multithreaded Core
Data applications, but I don't require multithreaded Core Data support. Is it
desirable to have two instances of NSPersistentStoreCoordinator -- one for the
library and one for documents (intuition says that this not necessary and
probably not the correct approach)?
Any suggestions?
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
NSBrowser
hi, i can navigate in a tree through the NSbrowser (mouse or keyboard), I would like to view the properties of representedObject during my browsing. but I don't find delegate's method (passif delegate). ( kind: selectedDidChange:) is it possible? who have a track? a link? thank ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [iPhone] Toolbar button and "Touch Down"
On Nov 16, 2010, at 9:26 AM, Jonathon Kuo wrote: > I agree: that's how I expected it to work, too, but that's not how it does > work (Xcode 3.2.4). If I drag a Round Rect Button onto the Toolbar, it > instantly gets promoted to a UIBarButtonItem (really!), and I can't set > "Touch Down" on it, nor can I change the class of it in IB. That's why I'm > confused... The Round Rect button that is dragged into the toolbar is not "promoted" to anything. It is wrapped in a UIBarButtonItem, exactly as Dave (and I advised). If you don't understand how to select the button itself using the design window, then use List View in the nib's main document window and drill down until you find it. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf AppleScript: the Definitive Guide, 2nd edition http://www.tidbits.com/matt/default.html#applescriptthings Take Control of Exploring & Customizing Snow Leopard http://tinyurl.com/kufyy8 RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSBrowser
NSBrowser is a subclass of NSControl, which happens to have a target and action mechanism. Have you tried hooking up your browser's target and action? Dave On Nov 17, 2010, at 8:52 AM, Bruno Causse wrote: > i can navigate in a tree through the NSbrowser (mouse or keyboard), > I would like to view the properties of representedObject during my browsing. > but I don't find delegate's method (passif delegate). ( kind: > selectedDidChange:) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [iPhone] Toolbar button and "Touch Down"
On Nov 17, 2010, at 8:47 AM, Matt Neuburg wrote: > > On Nov 16, 2010, at 9:26 AM, Jonathon Kuo wrote: > >> I agree: that's how I expected it to work, too, but that's not how it does >> work (Xcode 3.2.4). If I drag a Round Rect Button onto the Toolbar, it >> instantly gets promoted to a UIBarButtonItem (really!), and I can't set >> "Touch Down" on it, nor can I change the class of it in IB. That's why I'm >> confused... > > The Round Rect button that is dragged into the toolbar is not "promoted" to > anything. It is wrapped in a UIBarButtonItem, exactly as Dave (and I > advised). If you don't understand how to select the button itself using the > design window, then use List View in the nib's main document window and drill > down until you find it. m. Thank you Matt for the clear explanation (and your patience with a noob)! I got access to the button from the List view and set the Touch Down event on the button. It works! One question though: Taking another poster's suggestion, I placed a UISwitch in the toolbar and set Touch Down on it. It does register, but only for the OFF -> ON transition. Switching it from ON -> OFF doesn't invoke the action method. Should I be using one of the other events to capture both state transitions? Thanks again! ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSSavePanel panel:shouldShowFilename:
On Nov 15, 2010, at 7:57 PM, Leo wrote: > From: Quincey Morris > >> a number of system extensions (like Default Folder, but I think that wasn't >> the first) added the ability to option-click on a disabled item to prefill >> the >> text field with an existing name, > >> At some point (possibly Mac OS X 10.0), Apple quietly adopted this very >> useful >> convention. > > I once submitted a request to Apple, maybe I'm in minority, but I hope this > behavior will be optional one day. Like Opt-click would be perfect. > > I worked at a major ad agency for several years, and this behavior caused > major problems, misunderstandings and loss of time. > > Most of the time, people click on the file list occasionally (maybe to > type-scroll to desired folder), the file gets "quietly" renamed, you save it > - and can never find it because it was saved under a name you never wanted > or thought about. > > I had myself to cancel the Save dialog countless times to avoid saving files > under unwanted names. Undo works to undo the change. corbin ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [iPhone] Toolbar button and "Touch Down"
On Nov 17, 2010, at 10:25 AM, Jonathon Kuo wrote: > On Nov 17, 2010, at 8:47 AM, Matt Neuburg wrote: >> >> On Nov 16, 2010, at 9:26 AM, Jonathon Kuo wrote: >> >>> I agree: that's how I expected it to work, too, but that's not how it does >>> work (Xcode 3.2.4). If I drag a Round Rect Button onto the Toolbar, it >>> instantly gets promoted to a UIBarButtonItem (really!), and I can't set >>> "Touch Down" on it, nor can I change the class of it in IB. That's why I'm >>> confused... >> >> The Round Rect button that is dragged into the toolbar is not "promoted" to >> anything. It is wrapped in a UIBarButtonItem, exactly as Dave (and I >> advised). If you don't understand how to select the button itself using the >> design window, then use List View in the nib's main document window and >> drill down until you find it. m. > > Thank you Matt for the clear explanation (and your patience with a noob)! I > got access to the button from the List view and set the Touch Down event on > the button. It works! > > One question though: Taking another poster's suggestion, I placed a UISwitch > in the toolbar and set Touch Down on it. It does register, but only for the > OFF -> ON transition. Switching it from ON -> OFF doesn't invoke the action > method. Should I be using one of the other events to capture both state > transitions? Yes. Just connect the switch to the controller in the nib to form an action; the correct event will be selected automatically. Please understand that I am trying to educate, not criticize, when I say that for success in programming (for iOS or anything else) you must be willing to try stuff - on your own. This has nothing to do with being a newbie - it's a matter of character and determination. You could have selected the UIButton within the UIBarButtonItem; you just didn't try hard enough. If you had, repeated clicking and playing around would have led you to the truth. Similarly, to discover what event is appropriate for a UISwitch, try different events and see. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf AppleScript: the Definitive Guide, 2nd edition http://www.tidbits.com/matt/default.html#applescriptthings Take Control of Exploring & Customizing Snow Leopard http://tinyurl.com/kufyy8 RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [iPhone] Toolbar button and "Touch Down"
On Nov 17, 2010, at 10:54 AM, Matt Neuburg wrote: > > On Nov 17, 2010, at 10:25 AM, Jonathon Kuo wrote: > >> One question though: Taking another poster's suggestion, I placed a UISwitch >> in the toolbar and set Touch Down on it. It does register, but only for the >> OFF -> ON transition. Switching it from ON -> OFF doesn't invoke the action >> method. Should I be using one of the other events to capture both state >> transitions? > > Yes. Just connect the switch to the controller in the nib to form an action; > the correct event will be selected automatically. Yep, using "Value Changed" it invokes the action for both switch transitions. I can just look at [sender state] and tell what's going on. Cool. > > Please understand that I am trying to educate, not criticize, when I say that > for success in programming (for iOS or anything else) you must be willing to > try stuff - on your own. This has nothing to do with being a newbie - it's a > matter of character and determination. You could have selected the UIButton > within the UIBarButtonItem; you just didn't try hard enough. If you had, > repeated clicking and playing around would have led you to the truth. > Similarly, to discover what event is appropriate for a UISwitch, try > different events and see. m. Heh, this is kinda what I'm afraid of doing - screwing around with stuff and getting things to work, but not in the Cocoa Way.™ I guess there's a bit of intimidation to it so I try to follow where its leading me and not force it. But I suppose you're right, success awaits those who go where angels fear to tread (or whatever that saying is!) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: [iPhone] Toolbar button and "Touch Down"
On Nov 17, 2010, at 11:48 AM, Jonathon Kuo wrote: > Heh, this is kinda what I'm afraid of doing - screwing around with stuff I can sense that, and I'm telling you to excise those fear neurons. You're not going to break anything serious. It's only a computer program, not a space shuttle - no lives are going to be lost. You could confuse yourself, of course, but that's part of the learning process too. The big mistake that I find beginners make (and even experienced programmers seem to be guilty of this) is that they start creating an app, and then, when it has some complexity, they become paralyzed with fear of breaking what is already working. But: (1) you should have been using version control so that you can always go back to an earlier phase of development if things don't work out; and (2) you can always make a new temporary project and perform your experiments there, in a much smaller, simpler environment. m. -- matt neuburg, phd = m...@tidbits.com, http://www.tidbits.com/matt/ pantes anthropoi tou eidenai oregontai phusei Among the 2007 MacTech Top 25, http://tinyurl.com/2rh4pf AppleScript: the Definitive Guide, 2nd edition http://www.tidbits.com/matt/default.html#applescriptthings Take Control of Exploring & Customizing Snow Leopard http://tinyurl.com/kufyy8 RubyFrontier! http://www.apeth.com/RubyFrontierDocs/default.html TidBITS, Mac news and reviews since 1990, http://www.tidbits.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSTimer firedate randomly changes
I use two NSTimers in my app. One runs a "mini" data fetch at regular intervals. I use another to run a "full" data fetch every 4 hours. The problem I'm running into is that while the mini fetch runs as scheduled, the full fetch never runs. I put some NSLog statements in the code to output the firedate for both timers whenever the either fetch runs. What I see is that only the mini timer fires, always on schedule, but the full fetch timer's firedate is always offset forward by some random value in minutes so far (+35, +42, +72, etc.) and as a consequence, it never fires. I would expect its firedate to remain constant until it fires. I reset the mini timer after it fires as it needs to check if the user has changed the interval, but there is no code that resets the full fetch timer; no need, it should run every 4 hours. Here is the code I use to initialize the mini timer: miniTimer = [[NSTimer scheduledTimerWithTimeInterval:[[self fetchInterval] floatValue] * 60.0 target:self selector:@selector(myMethod) userInfo:nil repeats:NO] retain]; This code gets called after every mini fetch to ensure the timer is set The full fetch timer is setup in init as: fullFetchTimer = [[NSTimer scheduledTimerWithTimeInterval:14400.00 target:selfselector: @selector(clearOldData) userInfo:nil repeats:YES] retain]; I also subscribe to the NSWorkSpaceDidWakeNotification to ensure the timers fire if an interval was missed due to sleep, conditionally. If the full fetch should run, then the mini fetch does not and vice-versa. Any have any ideas whats going on? TIA -- "My break-dancing days are over, but there's always the funky chicken" --The Full Monty ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Running JavaScript in iOS WebView.
I've written an app for the Mac (which runs rather nicely) and now I'm trying
to port it to iOS (where it won't run at all). The particular line of code
which is causing a problem is this:
[webView stringByEvaluatingJavaScriptFromString:cmdStr];
cmdStr contains the following:
rcs.invoke(dojo.fromJson('{"pw":"password","type":"signIn","email":"geoff.hol...@45rpmsoftware.com"}'));
I'm using the JSON framework on Google code
(http://code.google.com/p/json-framework/), which (I'm assured) is iOS
compatible. It certainly builds without trouble.
The error I get when this line (fails to) execute is:
void SendDelegateMessage(NSInvocation*): delegate (webViewDidLayout:) failed to
return after waiting 10 seconds. main run loop mode: GSEventReceiveRunLoopMode
I have got webViewDidFinishLoad (that's where this code is called) - so it
isn't that it's trying to run on nothing.
If you have any ideas about what I could do to fix this, I'd be most interested
to hear them!
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Wed, Nov 17, 2010 at 12:41 PM, Lorenzo Thurman wrote: > I use two NSTimers in my app. One runs a "mini" data fetch at regular > intervals. I use another to run a "full" data fetch every 4 hours. The > problem I'm running into is that while the mini fetch runs as scheduled, > the > full fetch never runs. I put some NSLog statements in the code to output > the > firedate for both timers whenever the either fetch runs. What I see is that > only the mini timer fires, always on schedule, but the full fetch timer's > firedate is always offset forward by some random value in minutes so far > (+35, +42, +72, etc.) and as a consequence, it never fires. I would expect > its firedate to remain constant until it fires. I reset the mini timer > after > it fires as it needs to check if the user has changed the interval, but > there is no code that resets the full fetch timer; no need, it should run > every 4 hours. > That's not how timers work. They only fire if something wakes the runloop after their time has expired. Usually this is an event. Read the Overview section of the NSTimer reference: http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSTimer_Class/Reference/NSTimer.html --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Nov 17, 2010, at 1:35 PM, Kyle Sluder wrote: > That's not how timers work. They only fire if something wakes the runloop > after their time has expired. Usually this is an event. Not true. A timer may fire some time after its fire date for any number of reasons, but "no event to wake the run loop" is not one of them. If the run loop is idle (and in the right run loop mode, and not stopped, etc), then a timer's expiration is itself sufficient to wake the run loop and call the timer's code. No other event is necessary. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Wed, Nov 17, 2010 at 1:54 PM, Greg Parker wrote: > On Nov 17, 2010, at 1:35 PM, Kyle Sluder wrote: > > That's not how timers work. They only fire if something wakes the runloop > > after their time has expired. Usually this is an event. > > Not true. A timer may fire some time after its fire date for any number of > reasons, but "no event to wake the run loop" is not one of them. If the run > loop is idle (and in the right run loop mode, and not stopped, etc), then a > timer's expiration is itself sufficient to wake the run loop and call the > timer's code. No other event is necessary. > Okay, that's two people who have corrected me on this now. What am I misinterpreting about this documentation: http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running JavaScript in iOS WebView.
On Nov 17, 2010, at 13:33, Geoffrey Holden wrote:
> I've written an app for the Mac (which runs rather nicely) and now I'm trying
> to port it to iOS (where it won't run at all). The particular line of code
> which is causing a problem is this:
>
> [webView stringByEvaluatingJavaScriptFromString:cmdStr];
>
> cmdStr contains the following:
> rcs.invoke(dojo.fromJson('{"pw":"password","type":"signIn","email":"geoff.hol...@45rpmsoftware.com"}'));
>
> I'm using the JSON framework on Google code
> (http://code.google.com/p/json-framework/), which (I'm assured) is iOS
> compatible. It certainly builds without trouble.
>
> The error I get when this line (fails to) execute is:
>
> void SendDelegateMessage(NSInvocation*): delegate (webViewDidLayout:) failed
> to return after waiting 10 seconds. main run loop mode:
> GSEventReceiveRunLoopMode
>
> I have got webViewDidFinishLoad (that's where this code is called) - so it
> isn't that it's trying to run on nothing.
>
> If you have any ideas about what I could do to fix this, I'd be most
> interested to hear them!
Must be something with the JSON framework, maybe the syntax is incorrect,
because I just started using a WebView with
stringByEvaluatingJavaScriptFromString: and it works flawlessly like the
WebView for OS X. In my case, the code I execute is much simpler, things like
"document.forms[0].user.value=\"%...@\". No problem with this kind of scripting
but, like I said, it's very basic...
-Laurent.
--
Laurent Daudelin
AIM/iChat/Skype:LaurentDaudelin
http://www.nemesys-soft.com/
Logiciels Nemesys Software
laur...@nemesys-soft.com
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
Timers will cause a runloop to fire (depending on run mode of course)
without any other source having to fire.
#import
@interface TimerTest : NSObject
@end
@implementation TimerTest
- (void)runTest {
NSLog(@"Test Thread Running");
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
[NSTimer scheduledTimerWithTimeInterval:5.0
target:self
selector:@selector(timerFired:)
userInfo:nil
repeats:YES];
[[NSRunLoop currentRunLoop] run]; // will sit here until app termination
[pool release];
}
- (void) timerFired:(NSTimer*)timer {
NSLog(@"Timer Fired - %@", timer);
}
@end
int main (int argc, const char * argv[]) {
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSLog(@"Test Starting");
TimerTest* tt = [[TimerTest alloc] init];
[NSThread detachNewThreadSelector:@selector(runTest)
toTarget:tt
withObject:nil];
sleep(60);
NSLog(@"Test Completed");
[pool release];
}
run
[Switching to process 61896]
2010-11-17 13:59:19.329 TimerTest[61896:a0f] Test Starting
2010-11-17 13:59:19.332 TimerTest[61896:1503] Test Thread Running
Running…
2010-11-17 13:59:24.333 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:29.333 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:34.333 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:39.333 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:44.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:49.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:54.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 13:59:59.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 14:00:04.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 14:00:09.334 TimerTest[61896:1503] Timer Fired -
2010-11-17 14:00:14.335 TimerTest[61896:1503] Timer Fired -
2010-11-17 14:00:19.334 TimerTest[61896:a0f] Test Completed
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Wed, Nov 17, 2010 at 1:54 PM, Kyle Sluder wrote: > On Wed, Nov 17, 2010 at 1:54 PM, Greg Parker wrote: > >> On Nov 17, 2010, at 1:35 PM, Kyle Sluder wrote: >> > That's not how timers work. They only fire if something wakes the runloop >> > after their time has expired. Usually this is an event. >> >> Not true. A timer may fire some time after its fire date for any number of >> reasons, but "no event to wake the run loop" is not one of them. If the run >> loop is idle (and in the right run loop mode, and not stopped, etc), then a >> timer's expiration is itself sufficient to wake the run loop and call the >> timer's code. No other event is necessary. >> > > Okay, that's two people who have corrected me on this now. What am I > misinterpreting about this documentation: > > http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html What exactly do you see on the page that leads to your statement about timers? -Shawn ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On 17 Nov 2010, at 1:54 PM, Kyle Sluder wrote: > Okay, that's two people who have corrected me on this now. What am I > misinterpreting about this documentation: > > http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html Which particular sentence are you (mis)interpreting? The caveats about timers firing seem to be: - The timer won't fire if the run loop is currently called out to some other handler (processing some other event). This is reasonable, but might not be expected if someone's expecting timers to act more like signals or interrupts. - The timer won't fire if the run loop isn't running at all (no surprise). - The timer won't fire if it's scheduled in some mode that the run loop isn't running in. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
Here's what I got from that documentation: - An NSTimer is a run loop source. - NSRunLoop monitors its sources for events, provided that the run loop is running in the mode that the source is scheduled in. - If the run loop is processing an event from a different source and a timer fires, then the run loop will process the timer event on a subsequent iteration. - If the run loop is not running at all (like, you created an NSThread and didn't -run the run loop, or you are creating a foundation tool and didn't -run the run loop), then the timer events will not be processed, because the run loop is not processing *any* events. - If the run loop is not operating in the mode that the timer is scheduled in, then the timer events will not be processed until the run loop begins running in that mode again. Seemed like pretty straight-forward documentation to me. Dave On Nov 17, 2010, at 2:54 PM, Kyle Sluder wrote: > Okay, that's two people who have corrected me on this now. What am I > misinterpreting about this documentation: > > http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running JavaScript in iOS WebView.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 11/17/10 1:33 PM, Geoffrey Holden wrote: > void SendDelegateMessage(NSInvocation*): delegate (webViewDidLayout:) > failed to return after waiting 10 seconds. main run loop mode: > GSEventReceiveRunLoopMode > > I have got webViewDidFinishLoad (that's where this code is called) - > so it isn't that it's trying to run on nothing. > > If you have any ideas about what I could do to fix this, I'd be most > interested to hear them! Hmm. I haven't seen this myself, but are you by any chance trying to do this on a secondary thread? - -- Conrad Shultz Synthetiq Solutions www.synthetiqsolutions.com -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFM5FIuaOlrz5+0JdURApjsAJ4uPKnHEFVUJkiJJb7gtLx9dVMnDQCfSi9O gMRqrPoelphoQuTmbPt4esc= =mRgF -END PGP SIGNATURE- ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Wed, Nov 17, 2010 at 2:07 PM, Dave DeLong wrote: > Here's what I got from that documentation: > > - An NSTimer is a run loop source. > Ah, I think this is where my brain went all funny, because the NSRunLoop documentation mentions multiple times that "A timer is not considered an input source." http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSRunLoop_Class/Reference/Reference.html I suspect what is meant is that it's not considered an input source for the purpose of deciding when to stop looping and return from the -run… methods. Sorry for the distraction. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running JavaScript in iOS WebView.
On Nov 17, 2010, at 3:33 PM, Geoffrey Holden wrote:
> I've written an app for the Mac (which runs rather nicely) and now I'm trying
> to port it to iOS (where it won't run at all). The particular line of code
> which is causing a problem is this:
>
> [webView stringByEvaluatingJavaScriptFromString:cmdStr];
>
> cmdStr contains the following:
> rcs.invoke(dojo.fromJson('{"pw":"password","type":"signIn","email":"geoff.hol...@45rpmsoftware.com"}'));
>
> I'm using the JSON framework on Google code
> (http://code.google.com/p/json-framework/), which (I'm assured) is iOS
> compatible. It certainly builds without trouble.
>
> The error I get when this line (fails to) execute is:
>
> void SendDelegateMessage(NSInvocation*): delegate (webViewDidLayout:) failed
> to return after waiting 10 seconds. main run loop mode:
> GSEventReceiveRunLoopMode
>
> I have got webViewDidFinishLoad (that's where this code is called) - so it
> isn't that it's trying to run on nothing.
>
> If you have any ideas about what I could do to fix this, I'd be most
> interested to hear them!
>
>From the documentation
>:
JavaScript execution time is limited to 10 seconds for each top-level entry
point. If your script executes for more than 10 seconds, the web view stops
executing the script. This is likely to occur at a random place in your code,
so unintended consequences may result. This limit is imposed because JavaScript
execution may cause the main thread to block, so when scripts are running, the
user is not able to interact with the webpage.
So one of your routines (I'm guessing rcs.invoke) is taking a long time (more
than 10 seconds - perhaps it is waiting for some networked based action to
complete). So if your JavaScript code is waiting for completion, you're going
to have to refactor that code to work more asynchronously and not block.
Glenn Andreas gandr...@gandreas.com
The most merciful thing in the world ... is the inability of the human mind to
correlate all its contents - HPL
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
Control Focus Issue
In an NSPanel I have an NSComboBox and an NSTableView. I make a selection in the NSComboBox , it has focus, its action method is called. I use the mouse wheel to scroll the table view. I click an entry in the table view, the combo box action is called. Correct since the combo box has focus but disturbing to users as the combo box action has reason to scroll the table view. So, how can I set focus to the table view when it is scrolled by the mouse wheel so that the combo box action is not called? -koko ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSTimer firedate randomly changes
On Nov 17, 2010, at 2:12 PM, Kyle Sluder wrote: > On Wed, Nov 17, 2010 at 2:07 PM, Dave DeLong wrote: > Here's what I got from that documentation: > > - An NSTimer is a run loop source. > > Ah, I think this is where my brain went all funny, because the NSRunLoop > documentation mentions multiple times that "A timer is not considered an > input source." > http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Classes/NSRunLoop_Class/Reference/Reference.html > > I suspect what is meant is that it's not considered an input source for the > purpose of deciding when to stop looping and return from the -run… methods. A timer is a "source" but not an "input source". "The Run Loop Sequence of Events" says that both timers and port-based input sources are able to wake a sleeping run loop. -- Greg Parker gpar...@apple.com Runtime Wrangler ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running JavaScript in iOS WebView.
On 17 Nov 2010, at 17:28 , cocoa-dev-requ...@lists.apple.com wrote: > > JavaScript execution time is limited to 10 seconds for each top-level entry > point. If your script executes for more than 10 seconds, the web view stops > executing the script. This is likely to occur at a random place in your code, > so unintended consequences may result. This limit is imposed because > JavaScript execution may cause the main thread to block, so when scripts are > running, the user is not able to interact with the webpage. > > > > So one of your routines (I'm guessing rcs.invoke) is taking a long time (more > than 10 seconds - perhaps it is waiting for some networked based action to > complete). So if your JavaScript code is waiting for completion, you're > going to have to refactor that code to work more asynchronously and not block. Another limitation i have noticed is that if the end point is secure (ie HTTPS), scripts dont seem to execute. Glenn R. Martin___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Running JavaScript in iOS WebView.
On Nov 17, 2010, at 14:40, Glenn R. Martin wrote: > On 17 Nov 2010, at 17:28 , cocoa-dev-requ...@lists.apple.com wrote: > >> >> JavaScript execution time is limited to 10 seconds for each top-level entry >> point. If your script executes for more than 10 seconds, the web view stops >> executing the script. This is likely to occur at a random place in your >> code, so unintended consequences may result. This limit is imposed because >> JavaScript execution may cause the main thread to block, so when scripts are >> running, the user is not able to interact with the webpage. >> >> >> >> So one of your routines (I'm guessing rcs.invoke) is taking a long time >> (more than 10 seconds - perhaps it is waiting for some networked based >> action to complete). So if your JavaScript code is waiting for completion, >> you're going to have to refactor that code to work more asynchronously and >> not block. > > Another limitation i have noticed is that if the end point is secure (ie > HTTPS), scripts dont seem to execute. Seems to work for me on a secured connection (HTTPS)... -Laurent. -- Laurent Daudelin AIM/iChat/Skype:LaurentDaudelin http://www.nemesys-soft.com/ Logiciels Nemesys Software laur...@nemesys-soft.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
BSD Libs
I have a number of BSD static libs that link with my Cocoa apps. I want to bring this functionality to iPhone / iPad apps. So, before I jump in I thought I would ask: Can I build BSD static libs using iPhone sdks as my base sdk? -koko ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: BSD Libs
On 17 Nov 2010, at 3:51 PM, k...@highrolls.net wrote: > I have a number of BSD static libs that link with my Cocoa apps. I want to > bring this functionality to iPhone / iPad apps. So, before I jump in I > thought I would ask: > > Can I build BSD static libs using iPhone sdks as my base sdk? Yes. (In fact you're not allowed to use your own dynamic libraries or frameworks; static libraries or "one big project" are the options you have.) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: BSD Libs
Speaking of static libs, whatever happened to libstdc++-static.a in iOS? Some of legacy code I'm using still seems to require it when linking. My hack-o solution is to keep dragging the old (I think from XCode 3.1) static libs along for the simulator and device sysroots. I wish I could lose them, but no matter how I set various flags for both the legacy Makefiles (which build some static libs of their own) or the XCode projects they still want libstdc++-static. brad http://music.columbia.edu/~brad On Nov 17, 2010, at 8:15 PM, Wim Lewis wrote: > > On 17 Nov 2010, at 3:51 PM, k...@highrolls.net wrote: >> I have a number of BSD static libs that link with my Cocoa apps. I want to >> bring this functionality to iPhone / iPad apps. So, before I jump in I >> thought I would ask: >> >> Can I build BSD static libs using iPhone sdks as my base sdk? > > Yes. > > (In fact you're not allowed to use your own dynamic libraries or frameworks; > static libraries or "one big project" are the options you have.) > > > ___ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/cocoa-dev/garton%40columbia.edu > > This email sent to gar...@columbia.edu > ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: BSD Libs
OK. Static it is! Thx -koko On Nov 17, 2010, at 6:15 PM, Wim Lewis wrote: On 17 Nov 2010, at 3:51 PM, k...@highrolls.net wrote: I have a number of BSD static libs that link with my Cocoa apps. I want to bring this functionality to iPhone / iPad apps. So, before I jump in I thought I would ask: Can I build BSD static libs using iPhone sdks as my base sdk? Yes. (In fact you're not allowed to use your own dynamic libraries or frameworks; static libraries or "one big project" are the options you have.) ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
