func ok(kp *js.Object) {
print("ok")
print(kp)
fmt.Printf("%d\n", kp.Get("byteLength").Int())
x := tmp.Call("view", kp)
log.Println(x)
}
// TriggerBindEvent connects the giving event with the provided dom target.
func (dm *DOMRenderer) TriggerBindEvent(event *gjs.Object, root *gjs.Object, source *trees.Event) {
target := event.Get("target")
children := root.Call("querySelectorAll", source.Target())
if children == nil || children == gjs.Undefined {
return
}
kids := js.DOMObjectToList(children)
var match bool
for _, item := range kids {
if item != target {
continue
}
match = true
break
}
// if we match then run the listeners registered.
if match {
dispatch.Dispatch(trees.EventBroadcast{
EventID: source.EventID,
Event: trees.NewWrapperEvent(event),
})
}
}
func copyStruct(dst, src *js.Object, typ Type) {
fields := jsType(typ).Get("fields")
for i := 0; i < fields.Length(); i++ {
prop := fields.Index(i).Get("prop").String()
dst.Set(prop, src.Get(prop))
}
}
// NewContext takes an HTML5 canvas object and optional context attributes.
// If an error is returned it means you won't have access to WebGL
// functionality.
func NewContext(canvas js.Object, ca *ContextAttributes) (*Context, error) {
if js.Global.Get("WebGLRenderingContext") == js.Undefined {
return nil, errors.New("Your browser doesn't appear to support webgl.")
}
if ca == nil {
ca = DefaultAttributes()
}
attrs := map[string]bool{
"alpha": ca.Alpha,
"depth": ca.Depth,
"stencil": ca.Stencil,
"antialias": ca.Antialias,
"premultipliedAlpha": ca.PremultipliedAlpha,
"preserveDrawingBuffer": ca.PreserveDrawingBuffer,
}
gl := canvas.Call("getContext", "webgl", attrs)
if gl == nil {
gl = canvas.Call("getContext", "experimental-webgl", attrs)
if gl == nil {
return nil, errors.New("Creating a webgl context has failed.")
}
}
ctx := new(Context)
ctx.Object = gl
return ctx, nil
}
func ConsoleEvent(name string, event *jquery.Event, data *js.Object) {
page := data.Get("toPage").String()
if page == "[object Object]" {
page = data.Get("toPage").Call("jqmData", "url").String()
}
console.Log("Event: %s, Current page: %s", name, page)
}
func stringable(t *js.Object) bool {
switch t.Get("kind").Int() {
case boolKind, int8Kind, int16Kind, int32Kind, intKind, uint8Kind, uint16Kind, uint32Kind, uintKind, int64Kind, uint64Kind, float32Kind, float64Kind, stringKind:
return true
}
return false
}
func (ws *webSocket) sendPayload(action *Action) (err error) {
defer func() {
err = jsError(recover())
}()
decodeDataURI := (action.String() == "update_user")
for _, frame := range action.Payload {
var data *js.Object = frame
if decodeDataURI {
base64 := data.Call("split", ",").Index(1)
binaryString := js.Global.Call("atob", base64)
length := binaryString.Length()
data = js.Global.Get("ArrayBuffer").New(length)
array := js.Global.Get("Uint8Array").New(data)
for i := 0; i < length; i++ {
array.SetIndex(i, binaryString.Call("charCodeAt", i))
}
}
ws.impl.Call("send", data)
}
return
}
func (v Value) Slice3(i, j, k int) Value {
var (
cap int
typ Type
s *js.Object
)
switch kind := v.kind(); kind {
case Array:
if v.flag&flagAddr == 0 {
panic("reflect.Value.Slice: slice of unaddressable array")
}
tt := (*arrayType)(unsafe.Pointer(v.typ))
cap = int(tt.len)
typ = SliceOf(tt.elem)
s = jsType(typ).New(v.object())
case Slice:
typ = v.typ
s = v.object()
cap = s.Get("$capacity").Int()
default:
panic(&ValueError{"reflect.Value.Slice3", kind})
}
if i < 0 || j < i || k < j || k > cap {
panic("reflect.Value.Slice3: slice index out of bounds")
}
return makeValue(typ, js.Global.Call("$subslice", s, i, j, k), v.flag&flagRO)
}
func copyStruct(dst, src js.Object, typ Type) {
fields := jsType(typ).Get("fields")
for i := 0; i < fields.Length(); i++ {
name := fields.Index(i).Index(0).Str()
dst.Set(name, src.Get(name))
}
}
func makeValue(t Type, v *js.Object, fl flag) Value {
rt := t.common()
if t.Kind() == Array || t.Kind() == Struct || t.Kind() == Ptr {
return Value{rt, unsafe.Pointer(v.Unsafe()), fl | flag(t.Kind())}
}
return Value{rt, unsafe.Pointer(js.Global.Call("$newDataPointer", v, jsType(rt.ptrTo())).Unsafe()), fl | flag(t.Kind()) | flagIndir}
}
func cvtDirect(v Value, typ Type) Value {
var srcVal = v.object()
if srcVal == jsType(v.typ).Get("nil") {
return makeValue(typ, jsType(typ).Get("nil"), v.flag)
}
var val *js.Object
switch k := typ.Kind(); k {
case Slice:
slice := jsType(typ).New(srcVal.Get("$array"))
slice.Set("$offset", srcVal.Get("$offset"))
slice.Set("$length", srcVal.Get("$length"))
slice.Set("$capacity", srcVal.Get("$capacity"))
val = js.Global.Call("$newDataPointer", slice, jsType(PtrTo(typ)))
case Ptr:
if typ.Elem().Kind() == Struct {
if typ.Elem() == v.typ.Elem() {
val = srcVal
break
}
val = jsType(typ).New()
copyStruct(val, srcVal, typ.Elem())
break
}
val = jsType(typ).New(srcVal.Get("$get"), srcVal.Get("$set"))
case Struct:
val = jsType(typ).Get("ptr").New()
copyStruct(val, srcVal, typ)
case Array, Bool, Chan, Func, Interface, Map, String:
val = js.InternalObject(v.ptr)
default:
panic(&ValueError{"reflect.Convert", k})
}
return Value{typ.common(), unsafe.Pointer(val.Unsafe()), v.flag&(flagRO|flagIndir) | flag(typ.Kind())}
}
func makeValue(t Type, v js.Object, fl flag) Value {
rt := t.common()
if t.Size() > ptrSize && t.Kind() != Array && t.Kind() != Struct {
return Value{rt, unsafe.Pointer(js.Global.Call("go$newDataPointer", v, jsType(rt.ptrTo())).Unsafe()), fl | flag(t.Kind())<<flagKindShift | flagIndir}
}
return Value{rt, unsafe.Pointer(v.Unsafe()), fl | flag(t.Kind())<<flagKindShift}
}
func (d *Domain) Register(endpoint string, handler *js.Object) *js.Object {
cb := core.NewID()
var p promise.Promise
go func() {
// From the want wrapper pull out the types they defined,
// and pass them down into the core.
h := handler.Get("types")
tmp := h.Interface()
types, hasTypes := tmp.([]interface{})
// handler can either be:
// 1. an object that contains "types" and "fp" attributes.
// 2. a naked function, in which case we tell the core that it doesn't
// care about types.
handlerFunction := handler
handlerTypes := []interface{}{nil}
if hasTypes {
handlerFunction = handler.Get("fp")
handlerTypes = types
}
if err := d.coreDomain.Register(endpoint, cb, handlerTypes); err == nil {
d.app.registrations[cb] = handlerFunction
p.Resolve(nil)
} else {
p.Reject(err)
}
}()
return p.Js()
}
// QuerySelectorAll returns the result of querySelectorAll on an object
func QuerySelectorAll(o *js.Object, sel string) []*js.Object {
if sad := o.Get("querySelectorAll"); sad == nil || sad == js.Undefined {
return nil
}
return DOMObjectToList(o.Call("querySelectorAll", sel))
}
//horrific way to do map(func)
func extractAllLetters(obj js.Object) js.Object {
result := js.Global.Get("Array").New()
for i := 0; i < obj.Length(); i++ {
result.SetIndex(i, extractLetter(obj.Index(i)))
}
return result
}
func MakeWorkspace(canvas *js.Object) *Workspace {
doc := js.Global.Get("document")
ctx := canvas.Call("getContext", "2d")
w := &Workspace{
doc: doc,
canvas: canvas,
ctx: ctx,
x: canvas.Get("offsetLeft").Int(),
y: canvas.Get("offsetTop").Int(),
dx: canvas.Get("offsetWidth").Int(),
dy: canvas.Get("offsetHeight").Int(),
images: make(chan schema.ImageManifest),
disks: make(chan string),
ingresses: make(chan int),
draw: make(chan struct{}),
mouseDown: make(chan point),
mouseMove: make(chan point),
mouseUp: make(chan point),
makeItSo: make(chan struct{}),
cut: make(chan struct{}),
}
doc.Call("addEventListener", "mousedown", js.MakeFunc(w.onMouseDown), "false")
doc.Call("addEventListener", "mousemove", js.MakeFunc(w.onMouseMove), "false")
doc.Call("addEventListener", "mouseup", js.MakeFunc(w.onMouseUp), "false")
go w.run()
return w
}
// DOMObjectToList takes a jsobjects and returns a list of internal objects by calling the item method
func DOMObjectToList(o *js.Object) []*js.Object {
var out []*js.Object
length := o.Get("length").Int()
for i := 0; i < length; i++ {
out = append(out, o.Call("item", i))
}
return out
}
func handleInputKeyUp(event *js.Object) {
if keycode := event.Get("keyCode").Int(); keycode == 13 {
// user press enter key
w := word.Get("value").String()
word.Call("blur")
go httpGetWordJson(w)
}
}
func (c *controllerWrapper) SendVolume(ident string, volume int, cb *js.Object) {
go func() {
err := c.controller.SendVolume(ident, volume)
if err != nil {
cb.Invoke("Hello failed: " + err.Error())
}
}()
}
func wrapNodes(o *js.Object) []dom.Node {
l := o.Length()
toRet := make([]dom.Node, l)
for i := 0; i < l; i++ {
toRet[i] = dom.WrapNode(o.Index(i))
}
return toRet
}
func setMouseCursorFromEvent(e *js.Object) {
scale := currentUI.scale
rect := canvas.Call("getBoundingClientRect")
x, y := e.Get("clientX").Int(), e.Get("clientY").Int()
x -= rect.Get("left").Int()
y -= rect.Get("top").Int()
currentInput.setMouseCursor(int(float64(x)/scale), int(float64(y)/scale))
}
func (c *controllerWrapper) LoadTrack(ident string, gids []string, cb *js.Object) {
go func() {
err := c.controller.LoadTrack(ident, gids)
if err != nil {
cb.Invoke("Hello failed: " + err.Error())
}
}()
}
func NewContextMenus(contextMenusObj *js.Object) *ContextMenus {
c := new(ContextMenus)
c.o = contextMenusObj
if c.o.String() != "undefined" {
c.ACTION_MENU_TOP_LEVEL_LIMIT = contextMenusObj.Get("ACTION_MENU_TOP_LEVEL_LIMIT").Int()
}
return c
}
func (c *controllerWrapper) SendHello(cb *js.Object) {
go func() {
err := c.controller.SendHello()
if err != nil {
cb.Invoke("Hello failed: " + err.Error())
}
}()
}
func setMouseCursorFromEvent(e *js.Object) {
scale := canvas.Get("dataset").Get("ebitenScale").Int()
rect := canvas.Call("getBoundingClientRect")
x, y := e.Get("clientX").Int(), e.Get("clientY").Int()
x -= rect.Get("left").Int()
y -= rect.Get("top").Int()
currentInput.SetMouseCursor(x/scale, y/scale)
}
func NewProxy(proxyObj *js.Object) *Proxy {
p := new(Proxy)
p.o = proxyObj
if proxyObj.String() != "undefined" {
p.Settings = proxyObj.Get("settings")
}
return p
}
func NewExtension(extensionObj *js.Object) *Extension {
e := new(Extension)
e.o = extensionObj
if extensionObj.String() != "undefined" {
e.LastError = e.o.Get("lastError")
e.InIncognitoContext = e.o.Get("inIncognitoContext").Bool()
}
return e
}
func uint8ArrayToArrayBuffer(p *js.Object) *js.Object {
buffer := p.Get("buffer")
byteOffset := p.Get("byteOffset").Int()
byteLength := p.Get("byteLength").Int()
if byteOffset != 0 || byteLength != buffer.Get("byteLength").Int() {
return buffer.Call("slice", byteOffset, byteOffset+byteLength)
}
return buffer
}
// CleanAllTextNode removes all texts nodes within the container root
func CleanAllTextNode(o *js.Object) {
for _, to := range ChildNodeList(o) {
if istx, isem := EmptyTextNode(to); istx {
if !isem {
o.Call("removeChild", to)
}
}
}
}
func getFrameData(obj *js.Object) []byte {
// Check if it's an array buffer. If so, convert it to a Go byte slice.
if constructor := obj.Get("constructor"); constructor == js.Global.Get("ArrayBuffer") {
int8Array := js.Global.Get("Uint8Array").New(obj)
return int8Array.Interface().([]byte)
}
return []byte(obj.String())
}
