## 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
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**
## 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
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
## Summary
Show "Back" in file browser if not in root, "Home" otherwise.
---
### 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? 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
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
<!-- 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 -->
Noticed that the Indexing... popup went missing despite 3-5 seconds
delay. Reducing to 10KB, so we get a popup for delays > ~2s.
### 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
Added explanation how to recover from broken config/cache.
### 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
## Summary
* Prevent sleeping when in OPDS browser / downloading books
## Additional Context
* Raised in
https://github.com/crosspoint-reader/crosspoint-reader/discussions/673
---
### 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
## Summary
* I needed the ability to filter and or suppress debug messages
containig certain keywords (eg [GFX] for render related stuff)
* Update of debugging_monitor.py script for development work
## Additional Context
```
usage: debugging_monitor.py [-h] [--baud BAUD] [--filter FILTER] [--suppress SUPPRESS] [port]
ESP32 Monitor with Graph
positional arguments:
port Serial port
options:
-h, --help show this help message and exit
--baud BAUD Baud rate
--filter FILTER Only display lines containing this keyword (case-insensitive)
--suppress SUPPRESS Suppress lines containing this keyword (case-insensitive)
```
* plus a couple of platform specific defaults (port, pip style)
---
### 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
Added info about optimizing EPUB.
### 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
## 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
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**_
## 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
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>**_
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
* **What is the goal of this PR?** Add Italian language hyphenation
support to improve text rendering for Italian books.
* **What changes are included?**
* Added Italian hyphenation trie (hyph-it.trie.h) generated from Typst's
hypher patterns
* Registered italianHyphenator in LanguageRegistry.cpp for language tag
it
* Added Italian to the hyphenation evaluation test suite
* Added Italian test data file with 5000 test cases
## 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: drbourbon <fabio@MacBook-Air-di-Fabio.local>
## Summary
- Closes#730
**What is the goal of this PR?**
- Adds percentage-based value support to CSS properties that accept
percentages (padding, margin, text-indent)
**What changes are included?**
- Adds `Percent` as another CSS unit
- Passes the viewport width to `fromCssStyle` so that we can resolve
percentage-based values
- Adds a fallback of using an emspace for text-indent if we have an
unresolvable value for whatever reason
## Additional Context
- This was missed in my CSS support feature, and the fallback when we
encounter a percentage value is to use px instead. This means 5% (which
would be ~30px on the screen) turns into 5px. When percentages are used
in `text-indent`, this fallback behavior makes the indent look like a
single space character. Whoops! 😬
My test EPUB has been updated
[here](https://github.com/jdk2pq/css-test-epub) with percentage based
CSS values at the end of the book.
---
### 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? _**YES**_, Claude Code
## Summary
- Closes#730
**What is the goal of this PR?**
- Adds percentage-based value support to CSS properties that accept
percentages (padding, margin, text-indent)
**What changes are included?**
- Adds `Percent` as another CSS unit
- Passes the viewport width to `fromCssStyle` so that we can resolve
percentage-based values
- Adds a fallback of using an emspace for text-indent if we have an
unresolvable value for whatever reason
## Additional Context
- This was missed in my CSS support feature, and the fallback when we
encounter a percentage value is to use px instead. This means 5% (which
would be ~30px on the screen) turns into 5px. When percentages are used
in `text-indent`, this fallback behavior makes the indent look like a
single space character. Whoops! 😬
My test EPUB has been updated
[here](https://github.com/jdk2pq/css-test-epub) with percentage based
CSS values at the end of the book.
---
### 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? _**YES**_, Claude Code
## 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
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
## 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
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
I had an epub that just showed a blank cover and wouldnt work for the
sleep screen either, turns out it was an epub3 and I guess we didn't
support that. Super simple fix here
## 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
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
## 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
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**_
## 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
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**
## 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
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**_
## Summary
This PR optimizes the `fillRectDither` function, making it as fast as a
normal `fillRect`
Testing code:
```cpp
{
auto start_t = millis();
renderer.fillRectDither(0, 0, renderer.getScreenWidth(), renderer.getScreenHeight(), Color::LightGray);
auto elapsed = millis() - start_t;
Serial.printf("[%lu] [ ] Test fillRectDither drawn in %lu ms\n", millis(), elapsed);
}
{
auto start_t = millis();
renderer.fillRect(0, 0, renderer.getScreenWidth(), renderer.getScreenHeight(), true);
auto elapsed = millis() - start_t;
Serial.printf("[%lu] [ ] Test fillRect drawn in %lu ms\n", millis(), elapsed);
}
```
Before:
```
[1125] [ ] Test fillRectDither drawn in 327 ms
[1347] [ ] Test fillRect drawn in 222 ms
```
After:
```
[1065] [ ] Test fillRectDither drawn in 238 ms
[1287] [ ] Test fillRect drawn in 222 ms
```
## Visual validation
Before:
<img width="415" height="216" alt="Screenshot 2026-02-07 at 01 04 19"
src="https://github.com/user-attachments/assets/5802dbba-187b-4d2b-a359-1318d3932d38"
/>
After:
<img width="420" height="191" alt="Screenshot 2026-02-07 at 01 36 30"
src="https://github.com/user-attachments/assets/3c3c8e14-3f3a-4205-be78-6ed771dcddf4"
/>
## Details
The original version is quite slow because it does quite a lot of
computations. A single pixel needs around 20 instructions just to know
if it's black or white:
<img width="1170" height="693" alt="Screenshot 2026-02-07 at 00 15 54"
src="https://github.com/user-attachments/assets/7c5a55e7-0598-4340-8b7b-17307d7921cb"
/>
With the new, templated and more light-weight approach, each pixel takes
only 3-4 instructions, the modulo operator is translated into bitwise
ops:
<img width="1175" height="682" alt="Screenshot 2026-02-07 at 01 47 51"
src="https://github.com/user-attachments/assets/4ec2cf74-6cc0-4b5b-87d5-831563ef164f"
/>
---
### 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**
## 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
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**
## 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
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**_
## 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
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**_
## Summary
This PR optimizes the `fillRectDither` function, making it as fast as a
normal `fillRect`
Testing code:
```cpp
{
auto start_t = millis();
renderer.fillRectDither(0, 0, renderer.getScreenWidth(), renderer.getScreenHeight(), Color::LightGray);
auto elapsed = millis() - start_t;
Serial.printf("[%lu] [ ] Test fillRectDither drawn in %lu ms\n", millis(), elapsed);
}
{
auto start_t = millis();
renderer.fillRect(0, 0, renderer.getScreenWidth(), renderer.getScreenHeight(), true);
auto elapsed = millis() - start_t;
Serial.printf("[%lu] [ ] Test fillRect drawn in %lu ms\n", millis(), elapsed);
}
```
Before:
```
[1125] [ ] Test fillRectDither drawn in 327 ms
[1347] [ ] Test fillRect drawn in 222 ms
```
After:
```
[1065] [ ] Test fillRectDither drawn in 238 ms
[1287] [ ] Test fillRect drawn in 222 ms
```
## Visual validation
Before:
<img width="415" height="216" alt="Screenshot 2026-02-07 at 01 04 19"
src="https://github.com/user-attachments/assets/5802dbba-187b-4d2b-a359-1318d3932d38"
/>
After:
<img width="420" height="191" alt="Screenshot 2026-02-07 at 01 36 30"
src="https://github.com/user-attachments/assets/3c3c8e14-3f3a-4205-be78-6ed771dcddf4"
/>
## Details
The original version is quite slow because it does quite a lot of
computations. A single pixel needs around 20 instructions just to know
if it's black or white:
<img width="1170" height="693" alt="Screenshot 2026-02-07 at 00 15 54"
src="https://github.com/user-attachments/assets/7c5a55e7-0598-4340-8b7b-17307d7921cb"
/>
With the new, templated and more light-weight approach, each pixel takes
only 3-4 instructions, the modulo operator is translated into bitwise
ops:
<img width="1175" height="682" alt="Screenshot 2026-02-07 at 01 47 51"
src="https://github.com/user-attachments/assets/4ec2cf74-6cc0-4b5b-87d5-831563ef164f"
/>
---
### 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**
## 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.
Closes#182. Closes#710. Closes#711.
## Summary
**What is the goal of this PR?**
- A longer-term, more robust fix for the issue with spurious spaces
appearing after style changes. Replaces solution from #694.
**What changes are included?**
- Add continuation flags to determine if to add a space after a word or
if the word connects to the previous word. Replaces simple solution that
only considered ending punctuation.
- Fixed an issue with greedy line-breaking algorithm where punctuation
could appear on the next line, separated from the word, if there was a
style change between the word and punctuation
---
### 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? _**YES**_, Claude Code
## 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.
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### 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 **_