support iOS8

[Patrick Ruzand]

The purpose of this ticket is to track all the issues reported against dojo mobile during iOS8 beta tests.

[jmcl1]

Hi

Issues I am seeing on our mobile app, running 1.9.0

Lots of areas in the framework are attempting to access or change Event objects which are iOS8 seems to have made read only messages such as "Deprecated attempt to access property 'changedTouches' on a non-TouchEvent? object." are seen.

One example of where touch events are being manipulated can be see in "'dojo/on'" and the function fixTouchListener

This is preventing clicks and touches from being enacted.. I'm still trying to work out exactly what part of the function breaks it as some of the click events do get through.

[Adrian Vasiliu]

Created ​https://github.com/dojo/dojo/pull/104 to address the event handling issue.

@jmcl1: this pull request is for master but the same fix should be applicable to 1.9 (and 1.10 as well). If you could give it a try on your side, it would be helpful as a double-check (on my side it solves the event handling issue).

[jmcl1]

Replying to Adrian:

Created ​https://github.com/dojo/dojo/pull/104 to address the event handling issue.

@jmcl1: this pull request is for master but the same fix should be applicable to 1.9 (and 1.10 as well). If you could give it a try on your side, it would be helpful as a double-check (on my side it solves the event handling issue).

Hi Adrian, I will give it a go tonight (need to set up an rss feed on this ticket!) and let you know the outcome.

Joe

[Adrian Vasiliu]

Thanks @jmcl1. In the meantime, I've pushed the fix into the master, 1.10, and 1.9 branches (​https://github.com/dojo/dojo/pull/104#issuecomment-50669962 ).

[jmcl1]

Replying to Adrian:

Thanks @jmcl1. In the meantime, I've pushed the fix into the master, 1.10, and 1.9 branches (​https://github.com/dojo/dojo/pull/104#issuecomment-50669962 ).

Hi I've taken the patch and applied it to my mobile projects. I'm no longer seeing the above issue and transitions and touch events work correctly.

I'll keep a monitor on this ticket and also re-test with each iOS beta release, posting any updates

Thanks a lot for your help.

[Adrian Vasiliu]

Great, thanks @jmcl1.

[Adrian Vasiliu]

Concerning the behavior of dojo/has: has("ios") surprisingly returns 10.94 in the iPhone and iPad simulators of iOS 8 beta 4 (the UA includes the Mac OS X version which runs the simulator instead of the version number of iOS). However, running on real iPad and iPhone devices with iOS 8 beta 4, has("ios") returns 8 as expected.

[Adrian Vasiliu]

A note about the dojo/on fix: with the fresh new iOS 8 beta 5, the fix still works, and is still necessary.

[Adrian Vasiliu]

Another misbehavior of dojox/mobile apps concerns the layout issues. It goes as follows:

• Some severe issues seen with the initial beta(s) are gone at least since beta 4.
• In Safari beta 4, only on iPhone (not on iPad), ScrollableView?'s fixed footer is misplaced when turning from portrait to landscape. (The fact that it only affects iPhone in landscape is related with the changes in the full-screen management for iPhone in landscape). Side note, these issues would probably not affect a Cordova app, where the full-screen mode is irrelevant.
• I have searched for a fix/workaround, and found only one based on delaying the call of dojox/mobile/common.resizeAll when receiving orientation change events. This does the trick, but it is a painful workaround.
• In Safari beta 5, the misplacement when turning from portrait to landscape is gone (great...), but now the initial placement is incorrect when loading the app directly in landscape instead of loading in portrait then turning to landscape (again, this only holds for iPhone).
• The workaround I found for the issue in beta 4 (now gone in beta 5) doesn't solve the issue which appeared with beta 5...
• To be on the safe side, it might be worth spending time to search a solution for the new issue but on the other side it might simply go away in a next beta...

[jmcl1]

Replying to jmcl1:

Replying to Adrian:

Thanks @jmcl1. In the meantime, I've pushed the fix into the master, 1.10, and 1.9 branches (​https://github.com/dojo/dojo/pull/104#issuecomment-50669962 ).

Hi I've taken the patch and applied it to my mobile projects. I'm no longer seeing the above issue and transitions and touch events work correctly.

I'll keep a monitor on this ticket and also re-test with each iOS beta release, posting any updates

Thanks a lot for your help.

Ok something quite odd has cropped up. Depending on how I run a build for my project I see/ don't see the above issues. It is obviously something weird going on with my set up but only mentioning here in-case others see it. Investigating.

[Adrian Vasiliu]

Thanks for sharing it anyway. As you, I would think this is likely to be due to some build configuration issues, but you never know... Let us know if you find something. A few things to check:

• With the built version of Dojo with the patch applied, do you see in webinspector's console the same errors as with the non-built and non-patched Dojo?
• Can you put, say, an alert() in the patched dojo/on.js file (in the code which executes only once per app life cycle) such that you can check whether it is indeed the patched version which gets included in the build?
• With the built and patched Dojo, does it work fine on iOS < 8?
• And what is the Dojo version you work with? The official 1.10 release? 1.9.0 as you mentioned in your first post? (in this case it would be better to switch to the latest patch, 1.9.3) or a clone of one of Dojo's branches?

[jmcl1]

So it turns out I was doing something very stupid and point to an older version of the dojo source for certain builds. Confirmed working on simulator with 1.9.3

[Adrian Vasiliu]

Thanks for the good news!

[Adrian Vasiliu]

Concerning the issue with the misplaced ScrollableView?'s footer on iPhone in landscape orientation: I have verified that the issue does NOT hurt when the webapp is embedded in a Cordova 3.5.0 container.

[bill]

Setting for 1.10.1 as per today's meeting.

[Sherbrooke Andrews]

Looks like there is an issue with the latest beta build -

(new EventDelegate?).target = null;

doesn't throw an error

(new EventDelegate?()).target = null;

does however

[Adrian Vasiliu]

Could you please be more specific? Do you observe a misbehavior when using the current patched version of dojo/on in dojo's master or 1.10/1.9 branches? If yes, please provide details (a way to reproduce).

The variant (new EventDelegate()).target = null; is not present in the patched dojo/on, and users cannot write such code because EventDelegate is only available internally.

By "latest beta build" you mean iOS 8 beta 5, right?

[Sherbrooke Andrews]

yes iOS beta 5 - iOS 8.0 (12A4345d)

I'm using the 1.9 file from ​https://github.com/dojo/dojo/tree/1.9, spicificly talking about ​https://github.com/dojo/dojo/blob/1.9/on.js line 24

this dosent work

(new EventDelegate).target = null;
return true;

it dosent throw an error and the .target property of the EventDelegate? is still set to undefined (not null)

I've replaced it with the following in my local version

var b=new a;
b.target=null;
return null===b.target

Example code (Note: I don't have a public environment I can put this up on)-

<!DOCTYPE html>
<html>
<head>
	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0">
	<script src="dojox/mobile/deviceTheme.js"></script>
</head>
<body style="visibility: hidden;">
<div data-dojo-type="dojox/mobile/View">
	<div data-dojo-type="dojox/mobile/RoundRectList">
		<div data-dojo-props="href: 'http://cnn.com'" data-dojo-type="dojox/mobile/ListItem">Go to CNN - dosent work with existing dojo/on code</div>
	</div>
	<span id="clickBtn" style="display: inline-block; padding: 10px; background-color: grey;">Click me, this button always works</span>
</div>
<script type="text/javascript" src="dojo/dojo.js"></script>
<script>
require(['dojo/on', "dojo/touch","dojox/mobile/parser",'dojo/domReady!', 'dojox/mobile/View', 'dojox/mobile/RoundRectList', 'dojox/mobile/ListItem'],function(on, touch, parser){
	parser.parse();
	on(document.getElementById('clickBtn'),touch.press, function(){	alert('CLICKED'); });
});
</script>
</body>

the event bound with dojo.on always works, however the link on dojox/mobile/ListItem does not work with the current code

[Adrian Vasiliu]

Thanks @ZiggyQubert? for the clarification and code, but I don't reproduce. This is how I tested:

1. Copied your code into a test.html placed in the root dir of a freshly updated set of checkouts of the 1.9 branch of the dojo, dijit, dojox, and util git repos.
2. Loaded it in Safari / iOS 8 beta 5 on a physical iPhone 5S and also simulators from Xcode 6.0 (6A279r) (tried on iPhone 5S and iPad Air).
3. Touched the ListItem? "Go to CNN - dosent work with existing dojo/on code".

==> The cnn site loads as expected (and the console of Safari's webinspector stays clean of any error).

I don't know what could make it work differently on your side. Did you consistently use the latest state of the 1.9 branch on all dojo repos (dojo, dijit, dojox)?

[Sherbrooke Andrews]

So it looks like its something to do with the built version, I did a build with the dojo layer as follows

    layers: {
      "dojo/dojo" : {
    	  include: [ "dojo/on" ],
			exclude: [],
    	}
    }

the uncompressed version of the file works fine, the compressed version of the file dosen't work, not compleatly sure why. I'll do some more testing tomorrow, and can post the full profile I'm using if you need.

[Adrian Vasiliu]

Okay, so it's likely the issue would go away once the build issue is solved. I'm not a build expert myself, but I guess posting the full profile may help.

[Adrian Vasiliu]

Also, you can check the dojo/on part of the uncompressed version of the layer (dojo.js.uncompressed.js).

[Sherbrooke Andrews]

Ok, so with a bit more digging I've found the exact cause of the issue, dojo/on is declaring "use strict"

define(["./has!dom-addeventlistener?:./aspect", "./_base/kernel", "./sniff"], function(aspect, dojo, has){

	"use strict";
	if( 1 ){ // check to make sure we are in a browser, this module should work anywhere

which the closure compiler strips out when it minifies the files.

with use strict on, iOS 8 will throw an error when you attempt to modify a read only property, when its off it wont throw an error.

As far as I know there is no way to pass closure an extra parameter to keep the "use strict" directive, closure supports this (with --compiler_flags="--language_in=ECMASCRIPT5") but the dojo build system doesn't provide a mechanism to pass the flags to closure without editing the build scripts).

In any case I'd say that the code should support the default build configuration (where use strict is removed), and it probably easier to update this code rather than the build system.

[Adrian Vasiliu]

Got it, thanks a lot. Again, I'm not a build expert, but I can tell that, depending on the build system choices/configuration, there are means to avoid that the "use strict" gets stripped. That said, it's clearly better to avoid the need to take care of it at build level. I'll probably rework it in this sense.

[Adrian Vasiliu]

Submitted this pull request for fixing this issue: ​https://github.com/dojo/dojo/pull/110 (this is against dojo's master; in a second step I'll backport it).

@ZiggyQubert?: thanks again for your input on it.

[Adrian Vasiliu]

The dojo/on fix for iOS 8 (beta) is now merged into the master, 1.10, 1.9, and 1.8 branches of the dojo repository.

[Adrian Vasiliu <vasiliu@…>]

In 6012aedfea45220b6e84a7544f45d39b9fdad4f6/dojox:

Error: Processor CommitTicketReference failed

Unsupported version control system "git": Can't find an appropriate component, maybe the corresponding plugin was not enabled? 

[Adrian Vasiliu <vasiliu@…>]

In 37e50db764591c4982a20246d3e7537ffdceac9a/dojox:

Error: Processor CommitTicketReference failed

Unsupported version control system "git": Can't find an appropriate component, maybe the corresponding plugin was not enabled? 

[Colin Snover]

1.10.1 has been released, retargeting all open tickets to next milestone.

[bill]

pruzand - Shouldn't this ticket be marked as fixed in 1.10.1? Or is there more work left?

[Adrian Vasiliu]

The dojo/on fix for iOS 8 is now also backported to 1.7 (in ​https://github.com/dojo/dojo/commit/7b156f9ca999534709c17a850278184e4bcf153d). So it's now merged into master and in the 1.10, 1.9, 1.8, and 1.7 branches of the dojo repository.

[bill]

Thanks, IIUC this will be in 1.7.7, 1.8.8, 1.9.5, and is already in 1.10.1.

Marking milestone as "earliest" version fixed.

In the future please use "cherry-pick -x" to do backports so it notes the original commit.

[Adrian Vasiliu]

In the future please use "cherry-pick -x" to do backports so it notes the original commit.

Just a bit of explanation. This is what I usually do, and this is what I first tried here too, but it failed because of a merge conflict due to a another commit with a tiny change in the same code (​https://github.com/dojo/dojo/commit/ca9a818ac07153a92f7548b2acd2ea7bd05af602), done in master but not in older branches. I'm not sure cherry-picking is compatible with manually resolving merge conflicts (is it? I would think it isn't.). Additionally, there are two, not one original commit in master, 1.10 and 1.9: an initial fix, plus an additional fix. Later, when the backport to 1.8 and 1.7 was decided, I merged these into a single commit for the older branches.

[bill]

Thanks.

You can use cherry-pick when there's a merge conflict: just resolve the conflict, call "git add" on the conflicting files, and then "git commit".

But really, I just meant to somehow note which commit you are backporting in the check-in comment. Just for the future, in case we need that information for some reason.

[Adrian Vasiliu]

Okay. I thought the reference to the Trac ticket in the commit message is enough, because the ticket references the other commits, but you're right, it could be more clearly indicated. So thanks.

[Adrian Vasiliu]

@bill

IIUC this will be in 1.7.7, 1.8.8, 1.9.5, and is already in 1.10.1.

AFAIK, it is more exactly as follows:

The dojo/on fix is in 1.8.7, 1.9.4, 1.10.1 (all already shipped), and it will be in 1.7.7 (not yet shipped).

[ysazak]

my application works fine on IOS8 after I upgraded to 1.8.8. But now it doesnt work on Android. No touch event fired.

[cjolif]

ysazak, see our request for details here: ​https://bugs.dojotoolkit.org/ticket/18322#comment:2

[Adrian Vasiliu]

ysazak, this is unrelated with the changes for iOS 8 (#18168). See ​https://bugs.dojotoolkit.org/ticket/18322#comment:4.

[bill]

#18380 is a duplicate of this ticket.