Retain current render tiles for fast restart.
Waiting for a memory warning doesn't work because we can't make GL release calls once we're in the background.
Android still calls "reduceMemoryUse" only while handling a low memory event.
iOS, on the other hand, calls "reduceMemoryUse" every time it enters the background.
* [ios, macos] Import headers, not implementation files
* [core] Added accessors for various expression parameters
Added missing parameter accessors to various expression operator classes, as well as a method on InterpolatorBase and Step that enumerates the stops and their values.
* [ios, macos] Silenced warning in test of error condition
* [ios, macos] Made MGLSphericalPosition boxable
* [ios, macos] Implemented array enumeration during conversion
* [ios, macos] Temporarily ignore heatmap layer type
* [ios, macos] Migrated MGLSymbolStyleLayer.text to NSExpression
MGLSymbolStyleLayer.text is now of type NSExpression instead of MGLStyleValue, as a first step toward migrating the entire layer API from style values to expressions.
Implemented conversions from NSExpression to JSON arrays and vice versa. The most common NSExpression functions are now converted into style expressions, but not all of the most common style expression operators are supported yet.
* [ios, macos] Implemented string coercion
* [ios, macos] Color literals
* [ios, macos] Null constant expressions
* [ios, macos] Convert dictionary literals
* [ios, macos] Interpolation expressions
* [ios, macos] to-boolean, to-number, get from object
* [ios, macos] Variable expressions
Implemented custom expression functions for assigning and referring to variables within the context of an expression. Variables are assigned via a “context dictionary” and applied to an subexpression that is given as another argument to the same expression. Also implemented built-in variable expressions for zoom level and heatmap density.
* [ios, macos] Convert colors, offsets, padding in expressions to JSON objects
* [ios, macos] Expression-based style property getters
Implemented a conversion from mbgl::style::PropertyValues to Objective-C JSON objects, which are then converted to NSExpressions.
* [ios, macos] Consolidated property value–expression conversion in MGLStyleValueTransformer
* [ios, macos] Predicate and expression guide
Extracted documentation about predicates from a documentation comment in MGLVectorStyleLayer.h to a new jazzy guide. Added details about NSExpression support as well. Began updating the “For Style Authors” guide to reflect the transition from style values to expressions.
* [ios, macos] Updated style authoring guide
Updated the Information for Style Authors guide to discuss expressions instead of style functions. Included a table mapping style specification expression operators to NSExpression syntaxes.
* [ios, macos] Migrated codegen templates to expressions
* [ios, macos] Applied expression changes via codegen
Ran make darwin-style-code.
* [macos] Migrated macosapp to expressions
* [ios, macos] Updated style function guide
This guide needs to be thoroughly rewritten, but for now the example code has been migrated to expressions.
* [ios, macos] Eviscerated style function tests
* [ios, macos] Updated changelogs
* [ios] Migrated iosapp to expressions
* [ios, macos] Exposed JSON conversion methods publicly
* [ios, macos] Removed MGLStyleValue, MGLStyleFunction
This will allow us to write lightweight integration tests between MGLMapView and the core renderer.
Also includes a test for the recent custom layer memory fix, reverting the fix in order to demonstrate the failing test.
* [ios] Fix the layout constraints on iOS 11 for iPhone X for the bottom ornaments.
* WIP adding tests for layout of map view attribution logo and other ornaments
* Rename
* First pass at tests for mapview ornament layout
* Additional code changes from call with Fabian and Jason
* [ios] Fix ornaments insets margin space.
* [ios] Fix map view layout test for pre iOS 11.
* [ios] Refactor MGLMapView ornaments layout constraints for iOS 11.
* [ios] Remove NSLogs from MGLMapViewLayoutTests
This attempts to work around reports of repeated calls to [CLLocationManager authorizationStatus] blocking the main thread by dispatching it to the background, serial queue that is already available in MGLMapboxEvents.
This also adds a guard to the handler for the user defaults change event so that the call to pause or resume if required is done only if a user defaults value changes that would require an update to the pause / resume state.
The guard works by utilizing two new state variables that keep track of the previous values for account type and metrics enabled configuration variables. The call to pause/resume is only done if the latest relevant values in the user defaults dictionary are actually different than the previous ones.
The default values for the new state variables assume an account value of 0 and metrics enabled == true so there can be a small inefficiency if a user prevously opted out of telemetry, kills the app, and restarts it. In that case, the pause/resume method would get invoked one time when it would not technically need to. This should not be an issue in practice though.
Also updates the font to use for rendering CJK ideographs in our sample
apps to `PingFang TC`, as simply specifying `PingFang` was always
triggering iOS's font fallback behavior.
[Fixes#10675]
Original GL JS name was meant to represent "font family to use for locally generating ideographs", but "ideographic font family" communicates a similar intent more concisely.
