## Summary
* Definition and use of a central LOG function, that can later be
extended or completely be removed (for public use where debugging
information may not be required) to save flash by suppressing the
-DENABLE_SERIAL_LOG like in the slim branch
* **What changes are included?**
## Additional Context
* By using the central logger the usual:
```
#include <HardwareSerial.h>
...
Serial.printf("[%lu] [WCS] Obfuscating/deobfuscating %zu bytes\n", millis(), data.size());
```
would then become
```
#include <Logging.h>
...
LOG_DBG("WCS", "Obfuscating/deobfuscating %zu bytes", data.size());
```
You do have ``LOG_DBG`` for debug messages, ``LOG_ERR`` for error
messages and ``LOG_INF`` for informational messages. Depending on the
verbosity level defined (see below) soe of these message types will be
suppressed/not-compiled.
* The normal compilation (default) will create a firmware.elf file of
42.194.356 bytes, the same code via slim will create 42.024.048 bytes -
170.308 bytes less
* Firmware.bin : 6.469.984 bytes for default, 6.418.672 bytes for slim -
51.312 bytes less
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _NO_
---------
Co-authored-by: Xuan Son Nguyen <son@huggingface.co>
Replace bookmark stubs with full add/remove/navigate implementation:
- BookmarkStore: per-book binary persistence on SD card with v2 format
supporting text snippets (backward-compatible with v1)
- Visual bookmark ribbon indicator drawn on bookmarked pages via fillPolygon
- Reader menu dynamically shows Add/Remove Bookmark based on current page state
- Bookmark selection activity with chapter name, first sentence snippet, and
page number display; long-press to delete with confirmation
- Go to Bookmark falls back to Table of Contents when no bookmarks exist
- Smart snippet extraction: skips partial sentences (lowercase first word)
to capture the first full sentence on the page
- Label truncation reserves space for page suffix so it's never cut off
- Half refresh forced on menu exit to clear popup/menu artifacts
Co-authored-by: Cursor <cursoragent@cursor.com>
Implements StarDict-based dictionary lookup from the reader menu,
adapted from upstream PR #857 with /.dictionary/ folder path,
std::vector compatibility (PR #802), HTML definition rendering,
orientation-aware button hints, side button hints with CCW text
rotation, sparse index caching to SD card, pronunciation line
filtering, and reorganized reader menu with bookmark stubs.
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
* Add a small loop in main to be able to receive external commands,
currently being sent via the debugging_monitor
* Implemented command: cmd:SCREENSHOT sends the currently displayed
screen to the monitor, which will then store it to screenshot.bmp
## Additional Context
I was getting annoyed with taking tilted/unsharp photos of the device
screen, so I added the ability to press Enter during the monitor
execution and type SCREENSHOT to send a command. Could be extended in
the future
[screenshot.bmp](https://github.com/user-attachments/files/25213230/screenshot.bmp)
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? No
Moves cover/thumbnail generation from lazy (Home screen, Sleep screen) into
each reader activity's onEnter(). On first open, generates all needed BMPs
(cover, cover_crop, thumbnails for all theme heights) with a "Preparing
book..." progress popup. Subsequent opens skip instantly when files exist.
Co-authored-by: Cursor <cursoragent@cursor.com>
Resolve single conflict in SleepActivity.cpp: adopt upstream millis()
timestamp log format while preserving mod's edgeCachePath argument to
renderBitmapSleepScreen().
Upstream changes (14 commits): unified navigation handling, Italian
hyphenation, natural file sort, auto WiFi reconnect, power saving on
idle, OPDS fixes, uniform debug logging, and more.
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
This PR extends the delay in main loop from 10ms to 50ms after the
device is idle for a while. This translates to extended battery life in
a longer period (see testing section above), while not hurting too much
the user experience.
With the help from [this
patch](https://github.com/ngxson/crosspoint-reader/tree/xsn/measure_cpu_usage),
I was able to measure the CPU usage on idle:
```
PR:
[20017] [MEM] Free: 150188 bytes, Total: 232092 bytes, Min Free: 150092 bytes
[20017] [IDLE] Idle time: 99.62% (CPU load: 0.38%)
[30042] [MEM] Free: 150188 bytes, Total: 232092 bytes, Min Free: 150092 bytes
[30042] [IDLE] Idle time: 99.63% (CPU load: 0.37%)
[40067] [MEM] Free: 150188 bytes, Total: 232092 bytes, Min Free: 150092 bytes
[40067] [IDLE] Idle time: 99.62% (CPU load: 0.38%)
master:
[20012] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[20012] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
[30017] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[30017] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
[40022] [MEM] Free: 195016 bytes, Total: 231532 bytes, Min Free: 132460 bytes
[40022] [IDLE] Idle time: 98.53% (CPU load: 1.47%)
```
While this is a x3.8 reduce in CPU usage, it doesn't translate to the
same amount of battery life extension in real life. The reasons are:
1. The CPU is not shut down completely
2. freeRTOS tick is still running (however, I planned to experiment with
tickless functionality)
3. Current leakage to other components, for example: voltage dividers,
eink screen, SD card, etc
A note on
[light-sleep](https://docs.espressif.com/projects/esp-idf/en/stable/esp32c3/api-reference/system/sleep_modes.html)
functionality: it is not possible in our use case because:
- Light-sleep for 50ms introduce too much overhead on wake up, it has
negative effect on battery life
- Light-sleep for longer period doesn't work because the ADC GPIO
buttons cannot be used as wake up source
## Testing (duration = 6 hrs)
To test this, I patched the `CrossPointSettings::getSleepTimeoutMs()` to
always returns a timeout of 6 hrs. This allow me to leave the device
idle for 6 hrs straight.
- On master branch, 6 hrs costs 26% battery life (100% --> 74%), meaning
battery life is ~23 hrs
- With this PR, 6 hrs costs 20% battery life (100% --> 80%), meaning
battery life is ~30 hrs
So in theory, this extends the battery by about 7 hrs. Even with some
error margin added, I think 3 hrs increase is possible with a normal
usage setup (i.e. only read ebooks, no wifi)
## Additional Context
Would appreciate if someone can test this with an oscilloscope.
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? **NO**
## Summary
* Unify all serial port debug messages
## Additional Context
* All messages sent to the serial port now follow the "[timestamp]
[origin] payload" format (notable exception framework messages)
---
### AI Usage
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Did you use AI tools to help write this code? No
## Summary
Show "Back" in file browser if not in root, "Home" otherwise.
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? YES
## Summary
* Manually trigger GPIO update in File Browser mode
* Previously just assumed that the GPIO data would update automatically
(presumably via yield), the data is currently updated in the main loop
(and now here as well during the middle of the processing loop).
* This allows the back button to be correctly detected instead of only
being checked once every 100ms or so for the button state.
## Additional Context
* Fixes
https://github.com/crosspoint-reader/crosspoint-reader/issues/579
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Bug Fixes**
* Enhanced input state detection in the web server interface for more
responsive and accurate user command recognition during high-frequency
operations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Summary
* Prevent sleeping when in OPDS browser / downloading books
## Additional Context
* Raised in
https://github.com/crosspoint-reader/crosspoint-reader/discussions/673
---
### AI Usage
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helps set the right context for reviewers.
Did you use AI tools to help write this code? No
## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Implement natural sort (e.g. "file1.txt, file2.txt, file10.txt" instead
of "file1.txt, file10.txt, file2.txt") for files in the
MyLibraryActivity menu
* **What changes are included?**
Modifies the `sortFileList` function under
`src/activities/home/MyLibraryActivity.cpp` to use natural sort as
opposed to lexicographical sort
## Additional Context
I wasn't entirely sure whether or not i should make this a configurable
option, but most file browsers and directory listing tools have this set
as an immutable default, so I opted against it.
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
---
### AI Usage
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please be transparent about their usage as it
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Add configurable letterbox fill for sleep screen cover images that don't
match the display aspect ratio. Four fill modes are available: Solid
(single dominant edge shade), Blended (per-pixel edge colors), Gradient
(edge colors interpolated toward white/black), and None.
Enable upscaling of cover images smaller than the display in Fit mode by
modifying drawBitmap/drawBitmap1Bit to support both up and downscaling
via a unified block-fill approach.
Edge sampling data is cached to .crosspoint alongside the cover BMP to
avoid redundant bitmap scanning on subsequent sleeps. Cache is validated
against screen dimensions and auto-regenerated when stale.
New settings: Letterbox Fill (None/Solid/Blended/Gradient) and Gradient
Direction (To White/To Black).
Co-authored-by: Cursor <cursoragent@cursor.com>
## Summary
fixing issue if book href are absolute url and not relative to the
server
## Additional Context
* Fixes
https://github.com/crosspoint-reader/crosspoint-reader/issues/632
* https://github.com/harshit181/RSSPub/issues/43
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**< PARTIALLY>**_
This PR unifies navigation handling & adds system-wide support for
continuous navigation.
## Summary
Holding down a navigation button now continuously advances through items
until the button is released. This removes the need for repeated
press-and-release actions and makes navigation faster and smoother,
especially in long menus or documents.
When page-based navigation is available, it will navigate through pages.
If not, it will progress through menu items or similar list-based UI
elements.
Additionally, this PR fixes inconsistencies in wrap-around behavior and
navigation index calculations.
Places where the navigation system was updated:
- Home Page
- Settings Pages
- My Library Page
- WiFi Selection Page
- OPDS Browser Page
- Keyboard
- File Transfer Page
- XTC Chapter Selector Page
- EPUB Chapter Selector Page
I’ve tested this on the device as much as possible and tried to match
the existing behavior. Please let me know if I missed anything. Thanks 🙏
---
Following the request from @osteotek and @daveallie for system-wide
support, the old PR (#379) has been closed in favor of this
consolidated, system-wide implementation.
---
### AI Usage
Did you use AI tools to help write this code? _**PARTIALLY**_
---------
Co-authored-by: Dave Allie <dave@daveallie.com>
## Summary
* Allow OTA update from RC build to full release
* If all the segments match, then also check if the current version
contains "-rc"
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? No
## Summary
This is an updated version of @itsthisjustin's #346 that builds on
current master and also deduplicates the settings list so we don't have
two copies of the settings. In the Web UI, it should organize the
settings a little closer to what you see on device.
## Additional Context
I tested this live on device and it seems to play nicely for me. It's
re-based on master since master's settings stuff has moved somewhat
since the original PR and addresses the sole review comment #346 - it
also means that I don't need to manually key in the URL for my OPDS
server. :)
---
### AI Usage
My changes were implemented with Claude Opus 4.5 and Claude Code 2.1.25.
I don't know if @itsthisjustin's original work used AI assistance.
Co-authored-by: Dave Allie <dave@daveallie.com>
## Summary
Continue my changes to introduce the HAL infrastructure from
https://github.com/crosspoint-reader/crosspoint-reader/pull/522
This PR touches quite a lot of files, but most of them are just name
changing. It should not have any impacts to the end behavior.
## Additional Context
My plan is to firstly add this small shim layer, which sounds useless at
first, but then I'll implement an emulated driver which can be helpful
for testing and for development.
Currently, on my fork, I'm using a FS driver that allow "mounting" a
local directory from my computer to the device, much like the `-v` mount
option on docker. This allows me to quickly reset `.crosspoint`
directory if anything goes wrong. I plan to upstream this feature when
this PR get merged.
---
### AI Usage
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please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? NO
## Summary
Ref https://github.com/crosspoint-reader/crosspoint-reader/pull/737
This PR further reduce ~25ms from rendering time, testing inside the
Setting screen:
```
master:
[68440] [GFX] Time = 73 ms from clearScreen to displayBuffer
PR:
[97806] [GFX] Time = 47 ms from clearScreen to displayBuffer
```
And in extreme case (fill the entire screen with black or gray color):
```
master:
[1125] [ ] Test fillRectDither drawn in 327 ms
[1347] [ ] Test fillRect drawn in 222 ms
PR:
[1334] [ ] Test fillRectDither drawn in 225 ms
[1455] [ ] Test fillRect drawn in 121 ms
```
Note that
https://github.com/crosspoint-reader/crosspoint-reader/pull/737 is NOT
applied on top of this PR. But with 2 of them combined, it should reduce
from 47ms --> 42ms
## Details
This PR based on the fact that function calls are costly if the function
is small enough. For example, this simple call:
```
int rotatedX = 0;
int rotatedY = 0;
rotateCoordinates(x, y, &rotatedX, &rotatedY);
```
Generated assembly code:
<img width="771" height="215" alt="image"
src="https://github.com/user-attachments/assets/37991659-3304-41c3-a3b2-fb967da53f82"
/>
This adds ~10 instructions just to prepare the registers prior to the
function call, plus some more instructions for the function's
epilogue/prologue. Inlining it removing all of these:
<img width="1471" height="832" alt="image"
src="https://github.com/user-attachments/assets/b67a22ee-93ba-4017-88ed-c973e28ec914"
/>
Of course, this optimization is not magic. It's only beneficial under 3
conditions:
- The function is small, not in size, but in terms of effective
instructions. For example, the `rotateCoordinates` is simply a jump
table, where each branch is just 3-4 inst
- The function has multiple input arguments, which requires some move to
put it onto the correct place
- The function is called very frequently (i.e. critical path)
---
### AI Usage
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## Summary
Fix for the page skip issue detected
https://github.com/crosspoint-reader/crosspoint-reader/pull/700#issuecomment-3856374323
by user @whyte-j
Skipping down on the last page now skips to the last item, and up on the
first page to the first item, rather than wrapping around the list in a
weird way.
## Additional Context
The calculation was outdated after several changes were added afterwards
---
### AI Usage
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## Summary
**What is the goal of this PR?**
- Just a simple rename after feedback in #738
**What changes are included?**
- Renamed "Embedded Style" to "Book's Embedded Style" to more clearly
associate it with "Book's Style" option in "Paragraph Alignment"
settings
---
### AI Usage
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## Summary
* Inverts back button behaviour while reading - short press to go home,
long press to open file browser
## Additional Context
* It seems counterintuitive that going into a book from home screen and
pressing back doesn’t take you back to the home screen. With the recent
books now displayed in the home view and a separate recents view, going
directly to the file browser is less necessary.
## Summary
Reduce/fix the lag on the home screen before recent book covers are
rendered
## Additional Context
We were previously rendering the screen in two steps, delaying the
recent book covers render to avoid a lag before the screen loads.
In this PR, we are now doing that only if at least one book doesn't have
the cover thumbnail generated yet. If all thumbs are already generated,
we load and display them right away, with no lag.
---
### AI Usage
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Closes#712
## Summary
**What is the goal of this PR?**
- To add new settings for toggling on/off embedded CSS styles in the
reader. This gives more control and customization to the user over how
the ereader experience looks.
**What changes are included?**
- Added new "Embedded Style" option to the Reader settings
- Added new "Book's Style" option for "Paragraph Alignment"
- User's selected "Paragraph Alignment" will take precedence and
override the embedded CSS `text-align` property, _unless_ the user has
"Book's Style" set as their "Paragraph Alignment"
## Additional Context
https://github.com/user-attachments/assets/9e404b13-c7e0-41c7-9406-4715f389166a
Addresses feedback from the community about the new CSS feature:
https://github.com/crosspoint-reader/crosspoint-reader/pull/700
---
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## Summary
* Direct swap of X with new logo for boot and sleep screens
* More to be done here in the future to make these screens look a little
nicer
## Additional Context
* The design comes straight from @lepislepis -
https://github.com/crosspoint-reader/crosspoint-reader/discussions/396#discussioncomment-15590508
---
### AI Usage
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## Summary
This pull request introduces a new "Chapter Progress Bar" mode to the
status bar, allowing users to track their progress within the current
chapter in addition to the existing book-level progress options. It also
unifies and increases the progress bar height for better visibility, and
updates the settings UI to support the new mode.
Closes#636
**Status Bar/Progress Bar Enhancements:**
* Added a new `CHAPTER_PROGRESS_BAR` mode to
`CrossPointSettings::STATUS_BAR_MODE`, and updated the settings UI to
allow users to select this mode.
[[1]](diffhunk://#diff-3af36372bb6233a83387a68091b5e0651c23585c7c0a95669ed893268ca709a8R34)
[[2]](diffhunk://#diff-c55df9ec3ade843be000ba463cb75aa3df27dc34620a56c248fc4cc4e917b34bL22-R23)
* Implemented `drawChapterProgressBar` in `ScreenComponents` and
integrated it into both EPUB and TXT reader activities, so the chapter
progress bar is displayed when the new mode is selected.
[[1]](diffhunk://#diff-be271778a942f7fab0d920acd73442512346ff811a4625c011275a7ca6be3a3eL51-R64)
[[2]](diffhunk://#diff-dd410cab3a363d78172706d2ad6591f327e9b5b05f314db405db31a667af03faL16-R20)
[[3]](diffhunk://#diff-82798dedbe135495e619d4aa27a4bef560c70c7663cf43148b67a26ddde45682R518-R525)
[[4]](diffhunk://#diff-471ba9d9eb65b1a8451d41246db2aa695a42ea4ae4762163adfda4c20fec0950R563-R567)
* Updated logic in EPUB and TXT reader activities to show the correct
progress bar, progress text, and battery indicator based on the selected
status bar mode, including the new chapter progress bar mode.
[[1]](diffhunk://#diff-82798dedbe135495e619d4aa27a4bef560c70c7663cf43148b67a26ddde45682R470-R481)
[[2]](diffhunk://#diff-82798dedbe135495e619d4aa27a4bef560c70c7663cf43148b67a26ddde45682L490-R503)
[[3]](diffhunk://#diff-471ba9d9eb65b1a8451d41246db2aa695a42ea4ae4762163adfda4c20fec0950R522-R533)
[[4]](diffhunk://#diff-471ba9d9eb65b1a8451d41246db2aa695a42ea4ae4762163adfda4c20fec0950L539-R548)
**UI/Visual Tweaks:**
* Increased the progress bar height from 4 to 6 pixels for improved
visibility, and refactored code to use the new constant.
[[1]](diffhunk://#diff-dd410cab3a363d78172706d2ad6591f327e9b5b05f314db405db31a667af03faL16-R20)
[[2]](diffhunk://#diff-82798dedbe135495e619d4aa27a4bef560c70c7663cf43148b67a26ddde45682L295-R295)
[[3]](diffhunk://#diff-471ba9d9eb65b1a8451d41246db2aa695a42ea4ae4762163adfda4c20fec0950L177-R177)
These changes collectively provide users with more granular progress
tracking options and a clearer visual indicator for reading progress.
## Additional Context
---
### AI Usage
Did you use AI tools to help write this code? _**YES**_
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
## Summary
* **What is the goal of this PR?**
Move the "Sync Progress" option from TOC (Chapter Selection) screen to
the Reader Menu, and fix use-after-free crashes related to callback
handling in activity lifecycle.
* **What changes are included?**
- Added "Sync Progress" as a menu item in `EpubReaderMenuActivity` (now
4 items: Go to Chapter, Sync Progress, Go Home, Delete Book Cache)
- Removed sync-related logic from `EpubReaderChapterSelectionActivity` -
TOC now only displays chapters
- Implemented `pendingGoHome` and `pendingSubactivityExit` flags in
`EpubReaderActivity` to safely handle activity destruction
- Fixed GO_HOME, DELETE_CACHE, and SYNC menu actions to use deferred
callbacks avoiding use-after-free
## Additional Context
* Root cause of crashes: callbacks like `onGoHome()` or `onCancel()`
invoked from activity handlers could destroy the current activity while
code was still executing, causing use-after-free and race conditions
with FreeRTOS display task.
* Solution: Deferred execution pattern - set flags and process them in
`loop()` after all nested activity loops have safely returned.
* Files changed: `EpubReaderMenuActivity.h`,
`EpubReaderActivity.h/.cpp`, `EpubReaderChapterSelectionActivity.h/.cpp`
---
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Co-authored-by: danoooob <danoooob@example.com>
Co-authored-by: Dave Allie <dave@daveallie.com>
## Summary
Minor fix
### AI Usage
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## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
Add shift lock to KeyboardEntryActivity
https://github.com/user-attachments/assets/00973866-6b87-4d5b-a3bf-6f4f85a5e0a6
(Apologies for the graininess of the video - I was struggling to get it
below 10mb)
* **What changes are included?**
* Relax shift disable criteria to include any character
* Add third shift option `LOCK` which is not disabled on character
entry.
## Additional Context
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
---
### AI Usage
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please be transparent about their usage as it
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## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
This adds renaming and moving files to the File Manager
* **What changes are included?**
New `/move` and `/rename` endpoints, and corresponding modals and icons
added. Uses the `file.rename()` function, after sanity checking.
## Additional Context
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
Fixes#559, #661, #663. Only touches the File Manager, so low risk of
affecting other systems.
Simpler than #619, at the cost of not migrating the cache of renamed
books.
<img width="870" height="437" alt="image"
src="https://github.com/user-attachments/assets/73e0e750-dfc8-48e0-a7a6-9694470b7ded"
/>
<img width="575" height="318" alt="image"
src="https://github.com/user-attachments/assets/38c5fb19-c38a-436b-b3ad-75c1be7375ab"
/>
<img width="574" height="293" alt="image"
src="https://github.com/user-attachments/assets/1d2a2403-765d-473f-8c4f-c6968e9bbfeb"
/>
---
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Did you use AI tools to help write this code? _**YES**_
I used Codex for the implementation itself, and then carefully reviewed
the code myself. As this is a simple change and only to the webserver,
it is low risk.
## Summary
* **What is the goal of this PR?**
The goal of this PR is to deliver a fix for or at least mitigate the
impact of the issue described in #561
* **What changes are included?**
This PR includes a new option "Sunlight Fading Fix" under "Settings ->
Display".
When set to ON, we will disable the displays analog supply voltage after
every update and turn it back on before the next update.
## Additional Context
* Until now, I was only able to do limited testing because of limited
sunlight at my location, but the fix seems to be working. I'll also
attach a pre-built binary based on 0.16.0 (current master) with the fix
applied to the linked ticket, as building this fix is a bit annoying
because the submodule open-x4-sdk also needs an update.
* [PR in
open-x4-sdk](https://github.com/open-x4-epaper/community-sdk/pull/15)
needs to be merged first, we also need to add another commit to this
here PR, updating this dependency.
* I decided to hide this behind a default-OFF option. While I'm not
really concerned that this fix might potentially damage the display,
someone more knowledgeable on E-Ink technology could maybe have a look
at this.
* There's a binary attached in the linked issue, if someone has the
required sunlight to test this in-depth.
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**NO**_
---------
Co-authored-by: Dave Allie <dave@daveallie.com>
## Summary
* Adds Go To % action in Epub Reader menu with slider style percent
selector
<img width="860" height="1147" alt="image"
src="https://github.com/user-attachments/assets/a38ecc71-429e-40e8-94ac-37fb1509dbd9"
/>
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**< PARTIALLY >**_
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
## Summary
* adds rotation setting in epub reader menu, actual rotation happens on
going back
* improves button hint drawing to draw correctly in all orientations
<img width="860" height="1147" alt="image"
src="https://github.com/user-attachments/assets/91ceeca6-729f-4304-b68a-e412f6e2c9a7"
/>
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**< PARTIALLY >**_
## Summary
Allows to fallback to custom sleep screens if the book does not have a
cover.
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**< partially >**_
---------
Co-authored-by: mrtnvgr <root@unixis.fun>
## Summary
* **What is the goal of this PR?** (e.g., Implements the new feature for
file uploading.)
- Allows back button to be held to escape boot loops when reader
activity crashes and device attempts to boot to previous state
- Reduces the need of removing SD card and access to another device to
delete the `/.crosspoint/state.bin`
* **What changes are included?**
- Back button can be held while booting to boot to home screen
- Update of User Guide section to include this feature
## Additional Context
* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
specific areas to focus on).
---
### AI Usage
While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.
Did you use AI tools to help write this code? _**NO**_
---------
Co-authored-by: Arthur Tazhitdinov <lisnake@gmail.com>
