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uidriver/js: Add jsKeyToID to avoid js.Value.String

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Fixes #1437
This commit is contained in:
Hajime Hoshi 2020-12-16 13:29:32 +09:00
parent 69b1d2e820
commit 5bbb148a38
1 changed files with 25 additions and 6 deletions
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31
internal/uidriver/js/input_js.go
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@ -36,6 +36,25 @@ var (
stringTouchmove = js.ValueOf("touchmove")
)
var jsKeys []js.Value
func init() {
for _, k := range driverKeyToJSKey {
jsKeys = append(jsKeys, k)
}
}
func jsKeyToID(key js.Value) int {
// js.Value cannot be used as a map key.
// As the number of keys is around 100, just a dumb loop should work.
for i, k := range jsKeys {
if jsutil.Equal(k, key) {
return i
}
}
return -1
}
type pos struct {
X int
Y int
@ -51,7 +70,7 @@ type gamePad struct {
}
type Input struct {
keyPressed map[string]bool
keyPressed map[int]bool
keyPressedEdge map[int]bool
mouseButtonPressed map[int]bool
cursorX int
@ -168,7 +187,7 @@ func (i *Input) resetForFrame() {
func (i *Input) IsKeyPressed(key driver.Key) bool {
if i.keyPressed != nil {
if i.keyPressed[driverKeyToJSKey[key].String()] {
if i.keyPressed[jsKeyToID(driverKeyToJSKey[key])] {
return true
}
}
@ -212,16 +231,16 @@ func (i *Input) Wheel() (xoff, yoff float64) {
func (i *Input) keyDown(code js.Value) {
if i.keyPressed == nil {
i.keyPressed = map[string]bool{}
i.keyPressed = map[int]bool{}
}
i.keyPressed[code.String()] = true
i.keyPressed[jsKeyToID(code)] = true
}
func (i *Input) keyUp(code js.Value) {
if i.keyPressed == nil {
i.keyPressed = map[string]bool{}
i.keyPressed = map[int]bool{}
}
i.keyPressed[code.String()] = false
i.keyPressed[jsKeyToID(code)] = false
}
func (i *Input) keyDownEdge(code int) {