As a WebWorks developer, I can subscribe to events that will notify me when my application is paused or resumed #5

kwallis · 2012-03-13T14:23:05Z

The developer will want to be able to perform some logic when their application is put into background mode by the system. Same for when the application returns toi execution (i.e. put in foreground).

Acceptance Criteria

These events should be triggered with the same logic as the rest of the system, and obey the system settings for when an application is actually paused and resumed.
This API should mimic the Cordova signature for these events:
- a callback can be passed into blackberry.event.addEventListener, associated with a "pause" or "suspend" event.
- eg. blackberry.event.addEventListener("pause", onPause);
all events will fall into the "blackberry.event" feature id, which will be used for whitelisting.

nukulb · 2012-03-13T20:37:02Z

can you post the exact signatures or a link to the documentation?

kwallis · 2012-03-13T20:40:23Z

http://docs.phonegap.com/en/1.5.0rc1/phonegap_events_events.md.html#Events

Ken Wallis
Product Manager BlackBerry WebWorks

Research In Motion
(905) 629-4746 x14369

-----Original Message-----
From: Nukul Bhasin
<reply+i-3629948-df058a29a603ee70ab0e2ba0fb1c5ce10a6fc50b-498318@reply.gith
ub.com>
Date: Tue, 13 Mar 2012 13:37:03 -0700
To: Ken Wallis kwallis@rim.com
Subject: Re: [BB10-Webworks-API] As a WebWorks developer, I can subscribe
to events that will notify me when my application is paused or resumed (#5)

can you post the exact signatures or a link to the documentation?

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efidler · 2012-03-20T18:31:55Z

page visibility, perhaps? http://www.w3.org/TR/2011/WD-page-visibility-20110602/

nukulb · 2012-03-27T15:48:45Z

@efidlerrim Are you suggesting we use the page Visibility signature or we implement a webworks api based on this existing webkit event?
Is this event available in PB2.0?

efidler · 2012-03-27T15:57:34Z

it seems like (at least some of) this functionality basically duplicates Page Visibility, so why not use it? We don't have it on PB2.0.

kwallis · 2012-03-27T16:13:56Z

Does our implementation of page visibility reflect the actual state of the
application, and does it respect the different settings the user can

configure for if/when the application execution is actually paused?

Ken Wallis
Product Manager BlackBerry WebWorks

Research In Motion
(905) 629-4746 x14369

-----Original Message-----
From: "Eli Fidler (RIM)"
<reply+i-3629948-df058a29a603ee70ab0e2ba0fb1c5ce10a6fc50b-498318@reply.gith
ub.com>
Date: Tue, 27 Mar 2012 08:57:34 -0700
To: Ken Wallis kwallis@rim.com
Subject: Re: [BB10-Webworks-API] As a WebWorks developer, I can subscribe
to events that will notify me when my application is paused or resumed (#5)

it seems like (at least some of) this functionality basically duplicates
Page Visibility, so why not use it? We don't have it on PB2.0.

Reply to this email directly or view it on GitHub:
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efidler · 2012-03-27T16:28:16Z

Should do.

Eli

On 3/27/12 12:13 PM, "Ken Wallis"
<reply+i-3629948-7a256d2cee264a5ad6db69b89f1e497440d78c8c-415600@reply.gith
ub.com> wrote:

Does our implementation of page visibility reflect the actual state of the
application, and does it respect the different settings the user can

configure for if/when the application execution is actually paused?

Ken Wallis
Product Manager BlackBerry WebWorks

Research In Motion
(905) 629-4746 x14369

-----Original Message-----
From: "Eli Fidler (RIM)"
<reply+i-3629948-df058a29a603ee70ab0e2ba0fb1c5ce10a6fc50b-498318@reply.git
h
ub.com>
Date: Tue, 27 Mar 2012 08:57:34 -0700
To: Ken Wallis kwallis@rim.com
Subject: Re: [BB10-Webworks-API] As a WebWorks developer, I can subscribe
to events that will notify me when my application is paused or resumed
(#5)

it seems like (at least some of) this functionality basically duplicates
Page Visibility, so why not use it? We don't have it on PB2.0.

Reply to this email directly or view it on GitHub:
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rwmtse · 2012-03-27T18:42:18Z

@kwallis I am currently working on the implementation. What we do currently is we define a callback that gets invoked by the web launcher whenever the window state is changed. The web launcher calls this callback with 3 possible window states: fullscreen, thumbnail, or invisible. The code would trigger the onPause callback whenever window state == thumbnail, or the onResume callback whenever state == fullscreen.

kwallis · 2012-03-27T19:12:03Z

This is dependent on the system setting though?

Settings -> General -> Application Behavior.

If you select Showcase or Default, the app would still be running even in
thumbnail. For Showcase, it would never be paused at all.

We need these settings to be respected. Does the web launcher, or
something below it, respect these settings and only fire the window states
under the right circumstances? If not, then window state may not be the

right indicator of the application behavior.

Ken Wallis
Product Manager BlackBerry WebWorks

Research In Motion
(905) 629-4746 x14369

-----Original Message-----
From: Rosa Tse
<reply+i-3629948-df058a29a603ee70ab0e2ba0fb1c5ce10a6fc50b-498318@reply.gith
ub.com>
Date: Tue, 27 Mar 2012 11:42:19 -0700
To: Ken Wallis kwallis@rim.com
Subject: Re: [BB10-Webworks-API] As a WebWorks developer, I can subscribe
to events that will notify me when my application is paused or resumed (#5)

@kwallis I am currently working on the implementation. What we do
currently is we define a callback that gets invoked by the web launcher
whenever the window state is changed. The web launcher calls this
callback with 3 possible window states: fullscreen, thumbnail, or
invisible. The code would trigger the onPause callback whenever window
state == thumbnail, or the onResume callback whenever state == fullscreen.

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rwmtse · 2012-03-27T20:13:48Z

I've tested it. window states aren't tied to Application Behaviour. I would need to find another way to do it.

rwmtse · 2012-03-27T20:33:02Z

@kwallis I found that WebWorks for PB implemented onForeground/onBackground API based on window state before. I checked the code. It relies on flash.events.Event.activate/deactivate. This is the description for the activate event in Flash documentation: "Dispatched when the Flash Player or AIR application gains operating system focus and becomes active"
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/events/EventDispatcher.html#event:activate

kwallis · 2012-03-27T20:38:13Z

This does not necessarily equate to the window state that you outlined
before. I think we would need to know what native event/trigger the AIR

code is actually relying on to know if it is what window state is?

Ken Wallis
Product Manager BlackBerry WebWorks

Research In Motion
(905) 629-4746 x14369

-----Original Message-----
From: Rosa Tse
<reply+i-3629948-df058a29a603ee70ab0e2ba0fb1c5ce10a6fc50b-498318@reply.gith
ub.com>
Date: Tue, 27 Mar 2012 13:33:03 -0700
To: Ken Wallis kwallis@rim.com
Subject: Re: [BB10-Webworks-API] As a WebWorks developer, I can subscribe
to events that will notify me when my application is paused or resumed (#5)

@kwallis I found that WebWorks for PB implemented
onForeground/onBackground API based on window state before. I checked the
code. It relies on flash.events.Event.activate/deactivate. This is the
description for the activate event in Flash documentation: "Dispatched
when the Flash Player or AIR application gains operating system focus and
becomes active"
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/e
vents/EventDispatcher.html#event:activate

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erhorim · 2012-04-25T20:39:32Z

Feature implemented by blackberry-webworks/BB10-WebWorks-Framework#16

kwallis · 2012-05-07T18:35:36Z

Released

rwmtse mentioned this issue Apr 20, 2012

Pull Req: blackberry.event pause/resume blackberry-webworks/BB10-WebWorks-Framework#16

Merged

kwallis closed this as completed May 7, 2012

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As a WebWorks developer, I can subscribe to events that will notify me when my application is paused or resumed #5

As a WebWorks developer, I can subscribe to events that will notify me when my application is paused or resumed #5

kwallis commented Mar 13, 2012

nukulb commented Mar 13, 2012

kwallis commented Mar 13, 2012

efidler commented Mar 20, 2012

nukulb commented Mar 27, 2012

efidler commented Mar 27, 2012

kwallis commented Mar 27, 2012

efidler commented Mar 27, 2012

configure for if/when the application execution is actually paused?

rwmtse commented Mar 27, 2012

kwallis commented Mar 27, 2012

rwmtse commented Mar 27, 2012

rwmtse commented Mar 27, 2012

kwallis commented Mar 27, 2012

erhorim commented Apr 25, 2012

kwallis commented May 7, 2012

As a WebWorks developer, I can subscribe to events that will notify me when my application is paused or resumed #5

As a WebWorks developer, I can subscribe to events that will notify me when my application is paused or resumed #5

Comments

kwallis commented Mar 13, 2012

nukulb commented Mar 13, 2012

kwallis commented Mar 13, 2012

efidler commented Mar 20, 2012

nukulb commented Mar 27, 2012

efidler commented Mar 27, 2012

kwallis commented Mar 27, 2012

configure for if/when the application execution is actually paused?

efidler commented Mar 27, 2012

configure for if/when the application execution is actually paused?

rwmtse commented Mar 27, 2012

kwallis commented Mar 27, 2012

right indicator of the application behavior.

rwmtse commented Mar 27, 2012

rwmtse commented Mar 27, 2012

kwallis commented Mar 27, 2012

code is actually relying on to know if it is what window state is?

erhorim commented Apr 25, 2012

kwallis commented May 7, 2012