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From Michal Mocny <mmo...@chromium.org>
Subject Re: iOS: shouldRotateToOrientation javascript handler
Date Fri, 05 Jul 2013 16:11:02 GMT
Yeah, sorry, I meant the JS method: window.shouldRotateToOrientation is
undocumented and not supported on other platforms.


On Fri, Jul 5, 2013 at 11:47 AM, Andrew Grieve <agrieve@chromium.org> wrote:

> I think he means it's undocumented within Cordova's docs.
>
>
> On Fri, Jul 5, 2013 at 11:20 AM, Ian Clelland <iclelland@google.com>
> wrote:
>
> > I'm not sure what you mean by "Undocumented" in this case -- it's not a
> > private API that would get you booted from the App Store; it's a
> documented
> > method on UIView, although it's been deprecated recently.[1]
> >
> > Agreed that supporting the screen-orientation spec is probably the way to
> > go in the future, on any platforms that can support it.
> >
> > [1]
> >
> >
> http://developer.apple.com/library/ios/#documentation/uikit/reference/UIViewController_Class/DeprecationAppendix/AppendixADeprecatedAPI.html#jumpTo_9
> >
> >
> > On Fri, Jul 5, 2013 at 10:18 AM, Michal Mocny <mmocny@google.com> wrote:
> >
> > > iOS seems to have an undocumented "feature" to call into javascript
> > before
> > > every device orientation change (pasted below for your viewing
> pleasure).
> > >
> > > I can't find any such similar functionality on other platforms, should
> it
> > > be removed?  Likely we will want to write a screen orientation (
> > > http://www.w3.org/TR/screen-orientation/) plugin instead (eventually).
> > >
> > >
> > > -
> > >
> > >
> >
> (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
> > > {
> > >     // First, ask the webview via JS if it supports the new orientation
> > >     NSString* jsCall = [NSString stringWithFormat:
> > >         @"window.shouldRotateToOrientation &&
> > > window.shouldRotateToOrientation(%d);"
> > >         , [self
> mapIosOrientationToJsOrientation:interfaceOrientation]];
> > >     NSString* res = [webView
> > > stringByEvaluatingJavaScriptFromString:jsCall];
> > >
> > >     if ([res length] > 0) {
> > >         return [res boolValue];
> > >     }
> > >
> > >     // if js did not handle the new orientation (no return value), use
> > > values from the plist (via supportedOrientations)
> > >     return [self supportsOrientation:interfaceOrientation];
> > > }
> > >
> > > -Michal
> > >
> >
>

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