The previous code had a number of problems, including:
- Calls to the filters API were scattered through UI and viewmodel code.
- Repeated places where the differences between the v1 and v2 Mastodon
filters API had to be handled.
- UI and viewmodel code using the network filter classes, which tied
them to the API implementation.
- Error handling was inconsistent.
Fix this.
## FiltersRepository
- All filter management now goes through `FiltersRepository`.
- `FiltersRepository` exposes the current set of filters as a
`StateFlow`, and automatically updates it when the current server
changes or any changes to filters are made. This makes
`FilterChangeEvent` obsolete.
- Other operations on filters are exposed through `FiltersRepository` as
functions for viewmodels to call.
- Within the bulk of the app a new `Filter` class is used to represent a
filter; handling the differences between the v1 and v2 APIs is
encapsulated in `FiltersRepository`.
- Represent errors when handling filters as subclasses of `PachliError`,
and use `Result<V, E>` throughout, including using `ApiResult` for all
filter API results.
- Provide different types to distinguish between new-and-unsaved
filters, new-and-unsaved keywords, and in-progress edits to filters.
## Editing filters
- Accept an optional complete filter, or filter ID, as parameters in the
intent that launches `EditFilterActivity`. Pass those to the viewmodel
using assisted injection so the viewmodel has the info immediately.
- In the viewmodel use a new `FilterViewData` type to model the data
used to display and edit the filter.
- Start using the UiSuccess/UiError model. Refrain from cutting over to
full the action implementation as that would be a much larger change.
- Use `FiltersRepository` instead of making any API calls directly.
## Listing filters
- Use `FiltersRepository` instead of making any API calls directly.
## EventHub
- Remove `FilterChangedEvent`. Update everywhere that used it to use the
flow from `FiltersRepository`.
Previous code blindly inserted commas and semi-colons as separators
between the components of a content description. If some of those
components were null you could have a content description that looked
like "... , , , ..." or similar, and the repeated reading of "comma" by
screen readers was jarring and reduced accessibility.
Fix this by inserting punctuation only where necessary, building up the
string piece by piece instead of using a string resource with hardcoded
punctuation.
Fixes#791.
When autocompleting hashtags while composing a status the previous code
showed the hashtags in the same order they're returned by the server,
with no additional information.
This doesn't allow the user to make an informed choice about which
hashtag might be better to use. For example, trying to choose between
"#nivenly" and "#NivenlyFoundation".
To fix that, include the hashtag's usage when receiving data from the
server. Sum that, and show it to the user in the hashtag list. Sort the
hashtags by popularity, most popular first.
Mastodon now supports additional (optional) author information to show
as a byline on preview cards.
Use this (if included), to show the author's avatar, name, and link to
their profile. If tapped a click on a new `Target.BYLINE` target is
registered allowing fragments/activities to launch
`ViewProfileActivity`.
Include this as an action in `ListStatusAccessibilityDelegate`, and
provide `TrendingLinksAccessibilityDelegate` to provide accessibility
actions when viewing trending links.
Previous code assumed server responses would always be JSON, and had no
special handling for mis-configured servers that sometimes return HTML;
for example, if the server has a bug, or there's a reverse proxy in
front of the server issuing DoS-prevention challenges.
This could cause errors to show with no useful debugging information.
Update `ApiResult` to check the content-type in the response and return
one of two new errors if the content-type is missing or wrong. Also
include the HTTP code in `ApiResponse` for use elsewhere.
Update `ThrowableExtensions` to pull the `error` and optional
`description` out of the error body.
Update `PachliError` so `formatArgs` can be an array of arbitrary types,
not just strings.
Update `MediaUploader`; expose the different errors as new
`MediaUploaderError` types instead of `Exception` subclasses, and return
`Result<V, E>` where appropriate.
Update `ComposeViewModel` to use the new `MediaUploaderError` types and
create new `PickMediaError` to report issues there, replacing
`VideoOrImageException`.
Update `ComposeActivity` to use the new error types and show errors
until the user dismisses them, so they're better able to see and report
problems.
Fixes#704.
ktlint 1.3.0 promoted some experimental rules to the standard set, and
they some significant code churn if applied:
- Rewriting class signatures
- Rewriting conditions
- Rewriting single statement functions
Disable them for the time being.
The user has to specify the language they're posting in, and sometimes
they might get it wrong (e.g., replying to a post that also had the
language set incorrectly, forgetfulness, etc).
This has accessiblity issues (only following statuses in a given
language fails, translation can fail, etc).
Prevent this by trying to detect the language the status is written in
when the user tries to post it. If the detected language and the set
language do not match, and the detection is 60+% confident, warn the
user the status language might be incorrect, and offer to correct it
before posting.
How this works differs by device and API level.
- API 23 - 28, fdroid and github build flavours
- Not supported. A no-op language detector is used.
- API 29 and above, fdroid and github build flavours
- Uses Android TextClassifier to detect the likely language
- AP 23 and above, google build flavour
- Uses ML Kit language identification
To do this:
- Add `LanguageIdentifier`, with methods to do the identification, and
`LanguageIdentifier.Factory` to create the identifiers.
- Inject the factory in `ComposeActivity`
- Detect the language when the user posts, showing a dialog if there's a
sufficiently large discrepancy.
The ML Kit dependencies (language models) will be installed by the Play
libraries, so there's some machinery to check that they're installed,
and kick off the installation if not. If they can't be installed then
the language check is bypassed.
Update the privacy policy, as the ML Kit libraries may send some data to
Google.
This reverts commit 3870267701.
With this commit Pachli Current crash reports in Google Play showed
instances of:
```
Exception java.lang.RuntimeException:
at android.app.ActivityThread.handleBindApplication (ActivityThread.java:7716)
at android.app.ActivityThread.-$$Nest$mhandleBindApplication
at android.app.ActivityThread$H.handleMessage (ActivityThread.java:2478)
at android.os.Handler.dispatchMessage (Handler.java:106)
at android.os.Looper.loopOnce (Looper.java:230)
at android.os.Looper.loop (Looper.java:319)
at android.app.ActivityThread.main (ActivityThread.java:8919)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:578)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1103)
Caused by java.lang.IllegalStateException: WorkManager is not initialized properly. You have explicitly disabled WorkManagerInitializer in your manifest, have not manually called WorkManager#initialize at this point, and your Application does not implement Configuration.Provider.
at androidx.work.impl.WorkManagerImpl.getInstance (WorkManagerImpl.java:170)
at androidx.work.WorkManager.getInstance (WorkManager.java:184)
at app.pachli.PachliApplication.onCreate (PachliApplication.kt:96)
at android.app.Instrumentation.callApplicationOnCreate (Instrumentation.java:1316)
at android.app.ActivityThread.handleBindApplication (ActivityThread.java:7711)
```
on Samsung devices at API 34.
By my understanding this is a "can't happen" issue, the `WorkManager` is
supposed to be initialised by the androidx.startup content provider
before `PachliApplication` starts.
But it clearly does, so revert this change to be safe.
Implementing predictive back support inadvertently broke the code
ensuring activities are restarted when the font size or family changes.
So the user could change the font in Preferences, see the change be
immediately reflected in the preferences screen, then go back to the
previous activity and the change wouldn't be reflected.
Fix this by restoring some of the previous code.