Add a "Select" button in the highlight dialog to initiate
text selection; on the next text selection, the text between
these 2 points will be selected.
Limited to a single page with non-CRE documents.
Also move "Search" button at end, so it's the one that
will be wide in case of an odd number of buttons.
It's possible for the user to have selected nothing, and trying to
operate on the nil highlight can cause confusion or crashes. This
restores the behaviour before commit 7a0e3d5e68 ("readerhighlight:
remove selected_word and use selected_text everywhere"), which missed
this case.
In addition, add some debug guards to ReaderHighlight methods which
cannot handle selected_text being nil (or at least, shouldn't be called
with selected_text being nil).
Fixes: 7a0e3d5e68 ("readerhighlight: remove selected_word and use selected_text everywhere")
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Now that FileManager registers its UI modules in the same way as Reader,
this shouldn't be necessary but this protects us against some other app
creating a ReaderDictionary instance without having ui.languagesupport
registered properly.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
This creates a new plugin system which hooks into a handful of reader
operations in order to allow plugins to add language-specific support
where the default reader falls short. The two hooks added are:
* During hold-without-pan taps, language plugins can modify the
selection in order to better match what users expect koreader to
highlight when selecting a single word.
The vast majority of CJK language words are more than one character,
but KOReader treats all CJK characters as a single word by default,
so adding this hook means that readers no longer need to manually
select the whole word every time they need to look something.
* During dictionary lookup, language plugins can propose alternative
candidate words to look up if the selected word could not be found in
the dictionary.
This is pretty necessary for Japanese and Korean, both of which are
highly agglutinative languages and the fuzzy searching system of
StarDict is simply not usable because often the inflection of the
word is so much longer than the dictionary form that sdcv decides to
chop off the actual word and search for the inflection (which yields
useless results).
This system is of particular interest for readers of CJK languages
(without this, looking up words using KOReader was fairly painful) but
this system is designed to be minimal and language-agnostic enough that
other languages could make use of it by creating their own plugins if
the default "whole word" highlight and fuzzy-search system doesn't match
their needs.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
There were two ways of specifing selected text for a highlight depending
on whether it was a "single word" or text selected using hold-and-pan.
In addition to being a bit more complicated than is necessary, with the
addition of the language support plugin system (where the "single word"
selected might be expanded), it makes more sense to simply use the same
logic and table structure for both cases.
The dictionary lookup special case (hold-without-pan triggering a
dictionary lookup by default) still works as before.
In addition, this patch fixes a minor inefficiency during dictionary
quick lookup -- before this patch, the highlight would be re-selected
because the quick lookup window is run concurrently and tries to fetch
ReaderHighlight.selected_text but this is set to nil immediately after
triggering the lookup. This is unnecessary because :clear() will be
called anyway when the quick pop-up closes, and so clearing this can be
left until then.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Discussion in #6409.
Highlight action renamed to Long-press on text and moved from Gear - Document to Gear - Taps and gestures.
Added action Do nothing.
Removed menu item Typeset - Highlighting - Allow highlighting.
Fixed untranslated strings in the Cycle highlight action notification.
Long-press on images always opens ImageViewer. Closes#6409.
We may get multiple boxes when selecting texts, one for each
word, and we have to add spaces between the extracted words
ourselves. Previously, we were only adding a space if the
last char of previous word was ASCII, so missing spaces
after accents or greek words.
Try to do better by measuring the distances between boxes
and comparing to box heights, with a few heuristics.
The hyphenation of a word can be changed from its default
by long pressing for 3 seconds and selecting 'Hyphenate'.
These overrides are stored in a per-language file, i.e:
koreader/settings/user-German.hyph.
- TextWidget: avoid crash with small max_width (could happen
when opening menu on a small emulator window)
- TextWidget: avoid crash if re-used after :free()
- ReaderHighlight:clear(): fix possible crash when
scheduled and run after document closed
- DictQuickLookup: minor canSearch() tweak ('selected_text'
is normally available only on multiple words selection,
but is currently available on single word selection thanks
to some unrelated side effect)
Namely, instead of making it lower priority than readerhighlight and
hoping for the best, make it higher priority, as it should (ReaderFooter
itself is *above* Reader, after all), with a sane set of fallthroughs:
* No footer
* No hold-to-skim
* Held outside the footer (but inside the footer tap zone)
This made the crap workaround from #7466 unnecessary, and actually fixes
the behavior in PDFs (because readerhighlight will match the *physical*
page, which may include off-screen content) and ePubs w/r eclaim bar
height (in which case, there's actual content behind the footer that
readerhighlight could have matched on).
Fix#7697
* Input: Don't create a new TimeVal object for input frame timestamps, just promote our existing table by assigning it the `TimeVal` metatable.
* TimeVal: Export (const) `zero` & `huge` TimeVal objects, because they're common enough in our codebase. (NOTE: not actually const, that's a Lua 5.4 feature ;p).
* GestureDetector: Explain the behavior of the `last_tevs` & `first_tevs` tables, and why one needs a new object and not the other.
* Speaking of, simplify the copy method for `first_tevs`, because it doesn't need to create a new TimeVal object, we can just reference the original, it's unique and re-assigned for each frame.
* ReaderDictionary: Port delay computations to TimeVal
* ReaderHighlight: Port delay computations to TimeVal
* ReaderView: Port delay computations to TimeVal
* Android: Reset gesture detection state on APP_CMD_TERM_WINDOW.
This prevents potentially being stuck in bogus gesture states when switching apps.
* GestureDetector:
* Port delay computations to TimeVal
* Fixed delay computations to handle time warps (large and negative deltas).
* Simplified timed callback handling to invalidate timers much earlier, preventing accumulating useless timers that no longer have any chance of ever detecting a gesture.
* Fixed state clearing to handle the actual effective slots, instead of hard-coding slot 0 & slot 1.
* Simplified timed callback handling in general, and added support for a timerfd backend for better performance and accuracy.
* The improved timed callback handling allows us to detect and honor (as much as possible) the three possible clock sources usable by Linux evdev events.
The only case where synthetic timestamps are used (and that only to handle timed callbacks) is limited to non-timerfd platforms where input events use
a clock source that is *NOT* MONOTONIC.
AFAICT, that's pretty much... PocketBook, and that's it?
* Input:
* Use the <linux/input.h> FFI module instead of re-declaring every constant
* Fixed (verbose) debug logging of input events to actually translate said constants properly.
* Completely reset gesture detection state on suspend. This should prevent bogus gesture detection on resume.
* Refactored the waitEvent loop to make it easier to comprehend (hopefully) and much more efficient.
Of specific note, it no longer does a crazy select spam every 100µs, instead computing and relying on sane timeouts,
as afforded by switching the UI event/input loop to the MONOTONIC time base, and the refactored timed callbacks in GestureDetector.
* reMarkable: Stopped enforcing synthetic timestamps on input events, as it should no longer be necessary.
* TimeVal:
* Refactored and simplified, especially as far as metamethods are concerned (based on <bsd/sys/time.h>).
* Added a host of new methods to query the various POSIX clock sources, and made :now default to MONOTONIC.
* Removed the debug guard in __sub, as time going backwards can be a perfectly normal occurrence.
* New methods:
* Clock sources: :realtime, :monotonic, :monotonic_coarse, :realtime_coarse, :boottime
* Utility: :tonumber, :tousecs, :tomsecs, :fromnumber, :isPositive, :isZero
* UIManager:
* Ported event loop & scheduling to TimeVal, and switched to the MONOTONIC time base.
This ensures reliable and consistent scheduling, as time is ensured never to go backwards.
* Added a :getTime() method, that returns a cached TimeVal:now(), updated at the top of every UI frame.
It's used throughout the codebase to cadge a syscall in circumstances where we are guaranteed that a syscall would return a mostly identical value,
because very few time has passed.
The only code left that does live syscalls does it because it's actually necessary for accuracy,
and the only code left that does that in a REALTIME time base is code that *actually* deals with calendar time (e.g., Statistics).
* DictQuickLookup: Port delay computations to TimeVal
* FootNoteWidget: Port delay computations to TimeVal
* HTMLBoxWidget: Port delay computations to TimeVal
* Notification: Port delay computations to TimeVal
* TextBoxWidget: Port delay computations to TimeVal
* AutoSuspend: Port to TimeVal
* AutoTurn:
* Fix it so that settings are actually honored.
* Port to TimeVal
* BackgroundRunner: Port to TimeVal
* Calibre: Port benchmarking code to TimeVal
* BookInfoManager: Removed unnecessary yield in the metadata extraction subprocess now that subprocesses get scheduled properly.
* All in all, these changes reduced the CPU cost of a single tap by a factor of ten (!), and got rid of an insane amount of weird poll/wakeup cycles that must have been hell on CPU schedulers and batteries..
* LuaSettings/DocSettings: Updated readSetting API to allow proper initialization to default.
Use it to initialize tables, e.g., fixing corner-cases in readerFooter that could prevent settings from being saved.
(Fixes an issue reported on Gitter).
* LuaSettings/DocSettings: Add simpler API than the the flip* ones to toggle boolean settings.
* Update LuaSettings/DocSettigns usage throughout the codebase to use the dedicated boolean methods wher appropriate, and clean up some of the more mind-bending uses.
* FileChooser: Implement an extended default exclusion list (fix#2360)
* ScreenSaver: Refactor to avoid the pile of kludges this was threatening to become. Code should be easier to follow and use, and fallbacks now behave as expected (fix#4418).
Rework Dual pages code so that the view is considered
a single page number, so it looks more like 2-columns
on a single page.
This solves a few issues like:
- Page number and count are consistent between top
and bottom status bars
- SkimTo -1/+1 doing nothing every other tap
- Statistics being wrong (like "Pages read" never
going over half of the book page count)
Make Notification have toast=true, and UIManager deal
specifically with such widget:
a "toast" widget gets closed by any event, and let
the event be handled by a lower widget.
This should allow us to not wait or tap to get rid
of a notification, and just go on with what we're
doing.
Also make them have a default timeout of 2s,
used with all existing ones.
Don't cleanup input text as much when entered manually
(or when it's sane) than when coming from book text
selection.
This may allow looking up words like "-suffix", or
do more precise Wikipedia queries.
Drop the use of crengine's getWordFromPosition() which
is a bit unreliable: it may returns wrong coordinates,
or words from far away in the book (ie. when holding
in the margins).
Rely only on the robust getTextFromPositions() that
we already use for multi words selection.
Having good coordinates allows refreshing a smaller region
(the higlighted word, or the 2 lines if hyphenated).
* Top menu & bottom menu tapzones are now full-width, thanks to the now sane override system.
* A separate, extra tapzone was also created for each of them to provide a taller, but narrower tapzone extension (one that doesn't clash with the prev/next tapzones).
* The footer tapzone was made much taller.
* Use a CRe set* method when toggling nightmode
This ensures it gets flagged as add_reset by the call cache, and that
CRe will actually re-render, as it's necessary if nightmode_images is
enabled (the default).
Fix#6845
* Prevent ReaderHighlight:onTap from running ReaderHighlight:clear when
it's unnecessary.
Avoiding a clearSelection call in CRe that could invalidate the cache
and cause unnecessary redraws.
* Don't store empty highlight arrays when all HLs on a page have
been deleted
This pull requests aims to provide convenient way to zoom in comics. The idea is when user holds/double taps (not decided yet) on a manga/comic panel, it gets cut out from the rest of the image and zoomed. More details in koreader/koreader-base#1148. Depends on koreader/koreader-base#1159
