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[ios] Groundwork for new Redraw API, refactoring AppState, and bugfixes (#1133)

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* fix #1087. the CFRunLoopTimer was never started if the user never changed the controlflow.

* RedrawRequested ordering matches the new redraw api
consistent asserts
lots of appstate refactoring to rely less on unsafe, and hopefully make it easier to maintain

* ios: dpi bugfix. inputs to setContentScaleFactor are not to be trusted as iOS uses 0.0 as a sentinel value for "default device dpi".

the fix is to always go through the getter.

* move touch handling onto uiview

* update changelog

* rustfmt weirdness

* fix use option around nullable function pointers in ffi

* Document why gl and metal views don't use setNeedsDisplay

* change main events cleared observer priority to 0 instead of magic number
log when processing non-redraw events when we expect to only be processing redraw events
This commit is contained in:
mtak- 2019-09-04 14:23:11 -07:00 • committed by Osspial
parent c99bba1655
commit bfcd85ab15
6 changed files with 880 additions and 551 deletions
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16
src/platform_impl/ios/ffi.rs
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@ -331,14 +331,14 @@ pub enum CFRunLoopTimerContext {}
pub struct CFRunLoopSourceContext {
pub version: CFIndex,
pub info: *mut c_void,
pub retain: extern "C" fn(*const c_void) -> *const c_void,
pub release: extern "C" fn(*const c_void),
pub copyDescription: extern "C" fn(*const c_void) -> CFStringRef,
pub equal: extern "C" fn(*const c_void, *const c_void) -> Boolean,
pub hash: extern "C" fn(*const c_void) -> CFHashCode,
pub schedule: extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode),
pub cancel: extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode),
pub perform: extern "C" fn(*mut c_void),
pub retain: Option<extern "C" fn(*const c_void) -> *const c_void>,
pub release: Option<extern "C" fn(*const c_void)>,
pub copyDescription: Option<extern "C" fn(*const c_void) -> CFStringRef>,
pub equal: Option<extern "C" fn(*const c_void, *const c_void) -> Boolean>,
pub hash: Option<extern "C" fn(*const c_void) -> CFHashCode>,
pub schedule: Option<extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode)>,
pub cancel: Option<extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode)>,
pub perform: Option<extern "C" fn(*mut c_void)>,
}
pub trait NSString: Sized {