On 25/02/13 13:01, Alan Bell wrote: > At the moment the devices don't support rotation. I don't think > rotation is the same thing as a window changing size and aspect ratio, > I think there is a bit more to it than that. Some applications will > want to be portrait only, some will want to be landscape only. Some > may want to display a different UI in each orientation (like a > calculator being 4 function in portrait and scientific in landscape). > If there are multiple applications in the switcher list dragging from > the right will drag across some in portrait and some in landscape, so > you will have both on screen at the same time, at least partially. Do > applications get their coordinate space remapped externally, so > internally to the application it always thinks "up" is the same > direction, or do applications get told to rotate themselves and have > to figure out if they rotate by 90 or 270 degrees? What happens if you > continuously slowly rotate the device, does it continue to rotate or > jump backwards when you go past 360 degrees? Is there animation > effects for the transition between orientation states? Are we going to > support the mozilla html5 api extensions for orientation? > > https://wiki.mozilla.org/B2G/QA/WebAPI_Test_Plan/Screen_Orientation
Using QML, we need to expose QScreen's orientation() method and orientationChanged signal [1]. Note that there is also the concept of content orientation in QWindow [2] which may or may not be useful. I suspect Qt::QScreenOrientation is an enum that should have a simple mapping to the Mozilla mozOrientation so supporting that API extension sounds reasonable. > > What happens when an application that wants to always be portrait ends > up on a TV? Side-stage it? Bruno [1] http://qt-project.org/doc/qt-5.0/qtgui/qscreen.html [2] http://qt-project.org/doc/qt-5.0/qtgui/qwindow.html
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