These changes introduce two new functions called (*qml.QJSEngine).NewGoType and (*qml.QJSEngine).ToGoType, that can be used (similiar to how core.NewQVariant1 and (*core.QVariant).ToGoType can be used) to convert Go objects and functions to *qml.QJSValues and vice versa.
This allows for a more natural communication between Go and Qml/JS and makes it possible to simply pass a Go structs to Qml/JS and then call Go methods on that object.
For this to work, the object passed to Qml/JS needs to implement the `Pointer() unsafe.Pointer` and `SetPointer(unsafe.Pointer)` functions atm.
Which means, since all Qt classes already implement these functions, that you can now use the whole binding from Qml/JS as well and theoretically create a full Qt application inside an QJSEngine as well. A few example applications almost entirely written in JS can be found here: https://github.com/therecipe/examples/tree/master/js/
Furthermore, the `widgets_playground` example (https://github.com/therecipe/widgets_playground) now fully works on desktop and mobile targets as well.
other changes:
* core.NewQVariant1 and (*core.QVariant).ToGoType now recognize json tags
* workaround for qtmoc issue related to named imports
* speed-up go module android docker deployments
* fix webengine related qtdeploy bug on macOS
* fix int overflow issue for arm docker images
* fix js docker images
* fixes for Go 1.13 + retain go module 1.12 GOPATH behavior for internal/examples
* update docker images to 5.13.0
* new docker images (windows_64_shared_512, linux_512, darwin_512)
* update examples to match the Qt 5.13 api
* bump android minSdkVersion to 21 (5.0 / lollipop)
* bump OpenSSL version for android docker deployments to 1.1.1a
* let the binding use the 513 env by default
you can use QT_VERSION=5.12.0 and/or QT_API=5.12.0 to keep the binding backward compatible with your code
just setting QT_API=5.12.0 alone should also be sufficient to keep docker deployments working
if you did install an official Qt version then just set the correct QT_VERSION and procede as usual
* make private constructors work across packages
* fix go module related docker deployment issues
* make svg module optional
* bump openssl version for android docker images
* new (experimental) function to directly call qml functions from go
* fix QVariant related issue with older Qt versions
* fix qtmoc issue
* qml support for map[string]T, map[string]map[string]*QVariant, [][]*QVariant, []map[string]*QVariant and map[string][]*QVariant
* qml support for []*CustomMocStruct
* new "NewQVariant1(interface{}) *QVariant" and "(*QVariant).ToInterface() interface{}" functions
* fix docker go module support
* various fixes for js/wasm ([]byte support, quickcompiler support, moc fixes)
* docker go modules support
* android arm64 support
* hide rarely used dependencies behind build flags
* various minor fixes
* various minor fixes and cleanups
* support interface{} returns for js/wasm
* fix android builds on darwin
* support for the virtualkeyboard module
* fixes for docker image builds
* cleanup callback handling
* fix possible moc memory leaks
* new virtualkeyboard examples
* js/wasm GOCACHE fix for Go 1.12+
* make use of the official Go 1.12 wasm build and replace js.NewCallback with js.FuncOf
* update docker images to Go 1.12.4
* revive raspberry images
* fix raspberry related bundling issue
* add the multimedia module to the raspberry images
* fix raspberry related QT_API issue
* remove unecessary *char to []byte copy overhead in some unlikely cases
* fix Qt install script
* initial partially support for Felgo (former V-Play) on darwin
* fix charts/audio example and darwin
* fix common/widgets_demo example on iOS (issue #451)
* fix widgets/renderer memory leak
* fix possible QT_PKG_CONFIG + QT_VERSION race condition
* fix static linux docker image
