diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml new file mode 100644 index 0000000..e60ff59 --- /dev/null +++ b/.github/FUNDING.yml @@ -0,0 +1,2 @@ +github: [maplibre] +open_collective: maplibre diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md new file mode 100644 index 0000000..f870b43 --- /dev/null +++ b/.github/pull_request_template.md @@ -0,0 +1,10 @@ +# Issue/Motivation + +What issue is this PR targeting? + +## Tasklist + +- [ ] Include tests (if applicable) and examples (new or edits) +- [ ] If there are any visual changes as a result, include before/after screenshots and/or videos +- [ ] Add #fixes with the issue number that this PR addresses +- [ ] Update any documentation for affected APIs diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md new file mode 100644 index 0000000..aa2ca4f --- /dev/null +++ b/CODE_OF_CONDUCT.md @@ -0,0 +1,2 @@ +# Contributor Covenant +[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg)](https://github.com/maplibre/maplibre/blob/main/CODE_OF_CONDUCT.md) diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md new file mode 100644 index 0000000..49635f1 --- /dev/null +++ b/CONTRIBUTING.md @@ -0,0 +1,49 @@ +# Contributor Guide + +This project is a standard Swift package. + +## Environment setup + +The only special thing you might need besides Xcode is [`swiftformat`](https://github.com/nicklockwood/SwiftFormat). +We use it to automatically handle basic formatting and to linting +so the code has a standard style. + +Check out the swiftformat [Install Guide](https://github.com/nicklockwood/SwiftFormat?tab=readme-ov-file#how-do-i-install-it) +to add swiftformat to your machine. +Once installed, you can autoformat code using the command: + +```sh +swiftformat . +``` + +Swiftformat can occasionally poorly resolve a formatting issue (e.g. when you've already line-broken a large comment). +Issues like this are typically easy to manually correct. + +## Structure + +This package is structured into a few targets. `InternalUtils` is pretty much what it says. `MapLibreSwiftDSL` and +`MapLibreSwiftUI` are published products, and make up the bulk of the project. Finally, `Examples` is a collection of +SwiftUI previews. + +The DSL provides a more Swift-y layer on top of the lower level MapLibre APIs, and features a number of +result builders which enable more modern expressive APIs. + +The SwiftUI layer publishes a SwiftUI view with the end goal of being a universal view that can be adapted to a wide +variety of use cases, much like MapKit's SwiftUI views. + +## Testing + +We do not currently have full UI tests. +These are a bit tricky due to the async nature of MapLibre and integrating this into an Xcode UI test is challenging. +If you have any suggestions, we welcome them! + +## PRs + +If you're using this project and want to improve it, send us a PR! +We have a checklist in our PR template to help reviews go smoothly. + +NOTE: If possible, enable maintainer edits when you open PRs. +If your PR is good and just needs a few minor edits to get merged, +we can often put those finishing touches on for you. +In order to allow maintainer edits, +you need to send PRs from a personal fork (org-owned ones have funky auth). diff --git a/LICENSE.md b/LICENSE.md index 2f23078..77601ee 100644 --- a/LICENSE.md +++ b/LICENSE.md @@ -1,4 +1,4 @@ -Copyright (c) 2023, Stadia Maps, Inc. +Copyright (c) 2024, MapLibre contributors. All rights reserved. @@ -10,7 +10,7 @@ are permitted provided that the following conditions are met: * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. - * Neither the name of MapLibre GL JS nor the names of its contributors + * Neither the name of MapLibre nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. diff --git a/README.md b/README.md index 88ba675..5c1f4e3 100644 --- a/README.md +++ b/README.md @@ -1,3 +1,7 @@ +
+ +
+ # MapLibreSwiftUI Swift DSLs for [MapLibre Native](https://github.com/maplibre/maplibre-native), a free open-source renderer @@ -5,27 +9,24 @@ for interactive vector maps, to enable better integration with SwiftUI and gener ![A screen recording demonstrating the declarative SwiftUI DSL reacting to changes live](demo.gif) -This package is a playground (read: not yet stable) to experiment with Swift DSLs and SwiftUI without constraints. -As more people try this out with their own use cases, the community should eventuallly stabilize on a -reasonably optimal DSL for working with MapLibre in Swift. The package name is currently MapLibreSwiftUI, but it's -possible that the SwiftUI and DSL layers are separable. - -If successful, some version this project should eventually either get merged into MapLibre Native or at the least -merged into the MapLibre organization more formally. It is being developed as a separate package initially so we -can move fast without breaking anything important. - -**NOTE: This currently only works on iOS, as that's the only architecture currently published in the dynamic framework.** +This package is a reimagining of the MapLibre API with a modern DSLs for SwiftUI. +The pre-1.0 status means only that we are not yet committed to API stability yet, +since we care deeply about finding the best way to express things for SwfitUI users. +The package is robust for the subset of the MapLibre iOS API that it supports. +Any breaking API changes will be reflected in release notes. ## Goals -1. Primary: Make common use cases easy and make complicated ones possible +1. Primary: Make common use cases easy and [make complicated ones possible](Sources/MapLibreSwiftUI/Examples/Other.swift) * Easy integration of MapLibre into a modern SwiftUI app - * Add markers and similar annotations + * Add [markers](Sources/MapLibreSwiftUI/Examples/Gestures.swift), [polylines](Sources/MapLibreSwiftUI/Examples/Polyline.swift) and similar annotations + * Interaction with features through [gestures](Sources/MapLibreSwiftUI/Examples/Gestures.swift) * Clustering (common use case that's rather difficult for first timers) - * Overlays + * [Overlays]](Sources/MapLibreSwiftUI/Examples/) * Dynamic styling - * Camera control / animation?? - * Navigation + * [Camera control](Sources/MapLibreSwiftUI/Examples/Camera.swift) + * Turn-by-turn Navigation (see the showcase integrations below) + * Animation 2. Prevent most common classes of mistakes that users make with the lower level APIs (ex: adding the same source twice) 3. Deeper SwiftUI integration (ex: SwiftUI callout views) @@ -44,28 +45,104 @@ Then, for each target add either the DSL (for just the DSL) or both (for the Swi .product(name: "MapLibreSwiftUI", package: "maplibre-swiftui-dsl-playground"), ``` -Check out the (super basic) [previews at the bottom of MapView.swift](Sources/MapLibreSwiftUI/MapView.swift) -or more detailed [Examples](Sources/MapLibreSwiftUI/Examples) to see how it works in practice. +Then, you can use it in a SwiftUI view body like this: + +```swift +import MapLibre +import MapLibreSwiftDSL +import SwiftUI +import CoreLocation + +struct PolylineMapView: View { + // You'll need a MapLibre Style for this to work. + // You can use https://demotiles.maplibre.org/style.json for basic testing. + // For a list of commercially supported tile providers, check out https://wiki.openstreetmap.org/wiki/Vector_tiles#Providers. + // These providers all have their own "house styles" as well as custom styling. + // You can create your own style or modify others (subject to license restrictions) using https://maplibre.org/maputnik/. + let styleURL: URL + + // Just a list of waypoints (ex: a route to follow) + let waypoints: [CLLocationCoordinate2D] + + var body: some View { + MapView(styleURL: styleURL, + camera: .constant(.center(waypoints.first!, zoom: 14))) + { + // Define a data source. + // It will be automatically if a layer references it. + let polylineSource = ShapeSource(identifier: "polyline") { + MLNPolylineFeature(coordinates: waypoints) + } + + // Add a polyline casing for a stroke effect + LineStyleLayer(identifier: "polyline-casing", source: polylineSource) + .lineCap(.round) + .lineJoin(.round) + .lineColor(.white) + .lineWidth(interpolatedBy: .zoomLevel, + curveType: .exponential, + parameters: NSExpression(forConstantValue: 1.5), + stops: NSExpression(forConstantValue: [14: 6, 18: 24])) + + // Add an inner (blue) polyline + LineStyleLayer(identifier: "polyline-inner", source: polylineSource) + .lineCap(.round) + .lineJoin(.round) + .lineColor(.systemBlue) + .lineWidth(interpolatedBy: .zoomLevel, + curveType: .exponential, + parameters: NSExpression(forConstantValue: 1.5), + stops: NSExpression(forConstantValue: [14: 3, 18: 16])) + } + } +} +``` + +Check out more [Examples](Sources/MapLibreSwiftUI/Examples) to go deeper. -## Common integrations +**NOTE: This currently only works on iOS, as the dynamic framework doesn't yet include macOS.** + +## How can you help? + +The first thing you can do is try it out! +Check out the [Examples](Sources/MapLibreSwiftUI/Examples) for inspiration, +swap it into your own SwiftUI app, or check out some showcase integrations for inspiration. +Putting it "through the paces" is the best way for us to converge on the "right" APIs as a community. +Your use case probably isn't supported today, in which case you can either open an issue or contribute a PR. + +The code has a number of TODOs, most of which can be tackled by any intermediate Swift programmer. +The important issues should all be tracked in GitHub. +We also have a `#maplibre-swiftui-compose-playground` channel in the +[OpenStreetMap US Slack](https://slack.openstreetmap.us/). + +The skeleton is already in place for several of the core concepts, including style layers and sources, but +these are incomplete. You can help by opening a PR that fills these in. +For example, if you wanted to fill out the API for the line style layer, +head over to [the docs](https://maplibre.org/maplibre-native/ios/api/Classes/MGLLineStyleLayer.html) +and just start filling out the remaining properties and modifiers. + +## Showcase integrations ### Ferrostar -[Ferrostar](https://github.com/stadiamaps/ferrostar) has a MapLibre UI module as part of its Swift Package -which is already built on this! +[Ferrostar](https://github.com/stadiamaps/ferrostar) has a MapLibre UI module as part of its Swift Package. +That was actually the impetus for building this package, +and the core devs are eating their own dogfood. See the [SwiftUI customization](https://stadiamaps.github.io/ferrostar/swiftui-customization.html) part of the Ferrostar user guide for details on how to customize the map. ### MapLibre Navigation iOS -This package can help bridge the gap between MapLibre Navigation iOS and SwiftUI! +This package also helps to bridge the gap between MapLibre Navigation iOS and SwiftUI! +Thanks to developers from [HudHud](https://hudhud.sa/en) for their contributions which made this possible! -Add the Swift Package froh Hudhud (https://github.com/HudHud-Maps/maplibre-navigation-ios.git) to your Package.swift -and add code like this: +Add the [Swift Package](https://github.com/maplibre/maplibre-navigation-ios) to your project. +Then add some code like this: ```swift import MapboxCoreNavigation import MapboxNavigation +import MapLibreSwiftUI extension NavigationViewController: MapViewHostViewController { public typealias MapType = NavigationMapView @@ -78,7 +155,7 @@ extension NavigationViewController: MapViewHostViewController { @ViewBuilder var mapView: some View { MapView