Companion PR to https://github.com/koreader/koreader-base/pull/884
* Basically flags devices known to be stable when using PxP inversion.
* Plus, random fix for #4870 ;).
* A few FrontLight tweaks & cleanups on Kobo:
* Moved the Kobo-specific startup status insanity to Kobo-specific init
* Made turnOff/turnOn frontlight do a smooth ramp down/up
* On Kobo, use turnOff/turnOn for suspend/resume, to get that smooth toggle
* On Kobo, for NaturalLight w/ a mixer, only set warmth for setWarmth, and only set Brightness for setBrightness, otherwise, it tried to set both with not in-sync values, which made the FL widget jittery.
* Fix the "Enable debug logging" checkbox so that it properly disables "Enable verbose debug logging" when it gets disabled
* Avoid asking ImageWidget for alpha-blending when it's not useful
* Make ImageWidget's alpha-blending code-path double-check that alpha-blending actually is needed, and avoid it if possible
* In the same vein, only do alpha-blending in textboxwidget when absolutely necessary
* Prefer color constants over the gray() method, ensuring that they're part of the eInk palette
Depends on https://github.com/koreader/koreader-base/pull/853Fix#4774
Partially resolves#4747. Will enable switching Wi-Fi on/off in the menu and getting the network status. However, a new Wi-Fi session lasts ~100 seconds and then terminates automatically, apparently, to save the energy. I believe it can be prolonged by some networking activity. Also it is not shut down if the auto suspension is disabled.
* The Great 8bpp Experiment
Swap to 8bpp on Kobo, because we're 'effing grayscale, for pete's sake!
* Always swap to 8bpp, no matter the launch method.
Because it turned out that, even when restarting Nickel, we had to
restore the expected bitdepth ourselves, because pickel/Nickel didn't do
the job completely.
(I'm going to guess the grayscale flag wasn't getting flipped properly).
* Dither every non-transparent icon to the eInk palette
* Make sure hasBGRFrameBuffer is only enabled when the Kobo fb actually is
@ 32bpp...
* Re-process badly grayscaled icons
* And re-grayscale that one w/ gamma correction so the squares show up
better.
* Allow the fbdepth switch to be disabled (in Developer settings).
Also, allow setting debug mode that way.
Also, forcibly disable verbose logging when disabling debug.
* Update setting name to piggyback on the existing check in reader.lua
* Update icons postprocessing info
Multiswipes consisting of mixed straight and diagonal strokes are not dependable and too easy to mess up, but making them mutually exclusive seems to work out quite well.
When multiswipes are enabled, this fixes the long-standing complaint that swiping to open the menu could unintentionally trigger some light panning. With the introduction of multiswipes, this problem has become more noticeable.
Reported by @poire-z, cf. https://github.com/koreader/koreader/pull/4640#issuecomment-466544922
Apparently it's natural for me to make the second swipe slightly longer than the first, so I never noticed a logic issue. I did notice that it seemed slightly harder to make 4-swipe multiswipes than I expected it to be, but those are not necessarily easy gestures to make.
The problem was that I needed to prevent obviously silly gestures like west west west east. In ignoring such duplication, what I accidentally did was to ignore any further movement west after the first multiswipe direction was detected, meaning that the following swipe east could still end up as a relatively western movement overall.
By simply updating the current multiswipe slot in case of the same direction, both problems are prevented. We'll never get the same direction twice, and X moves over to where it's supposed to be on the left.
The concept is quite simple: stick a file on the OTA server named
something like `koreader-appimage-latest-stable` (by analogy with
`koreader-cervantes-latest-stable.zsync`), which contains nothing
but a filename.
The difference with the zsync update is that the link is then launched
in the user's browser (AppImage) or DownloadManager (Android, not yet
implemented).
* Android hasOTAUpdate = no for the moment
When we rotate to show a screensaver, restore original rotation *before* closing the ScreenSaver window.
And ensure closing the ScreenSaver *always* triggers a full update, no
matter the settings.
Fix#4621
The basic idea is that you gain an infinite amount of extra gestures,
although in practice you're probably mostly limited to your 16 basic
two swipe combinations and maybe a few three swipe ones.
* Flash a white screen before showing a screensaver image, to prevent
ghosting.
* Really limit the white flash to full-screen images
* Limit that behavior to eInk screens
(Not that clear() is implemented anywhere else, but, still).
* On Kobo, kill WiFi on startup if we detect an inconsistent state...
Untested, not terribly pretty.
The other solution is to slow down the Wi-Fi meny by doing the same
check for the "Wi-Fi connection" checkbox as in the later wifi_status
one...
* Don't enable auto_restore_wifi by default
It's liable to silently murder batteries for no good reason, given that
we prompt to enable WiFi by default when needed, and we otherwise have
no actual need to keep WiFi on in the background.
re #2215 (in particular, this directly contradicts @houqp in
https://github.com/koreader/koreader/pull/2215#discussion_r74696133 ;)).
NiLuJe
Martín Fernández
Frans de Jonge
Galunid
tob1az
Qingping Hou