internal/ui: separate 'vibrate' part to internal/vibrate

internal/ui/ui_cbackend.go

@@ -124,9 +124,6 @@ func (*UserInterface) SetScreenTransparent(transparent bool) {
 func (*UserInterface) SetInitFocused(focused bool) {
 }
 
-func (*UserInterface) Vibrate(duration time.Duration, magnitude float64) {
-}
-
 func (*UserInterface) Input() *Input {
 	return &theUserInterface.input
 }

internal/ui/ui_glfw.go

@@ -1620,7 +1620,3 @@ func (u *UserInterface) setOrigPos(x, y int) {
 	u.origPosX = x
 	u.origPosY = y
 }
-
-func (u *UserInterface) Vibrate(duration time.Duration, magnitude float64) {
-	// Do nothing.
-}

internal/ui/ui_js.go

@@ -652,14 +652,6 @@ func (u *UserInterface) SetInitFocused(focused bool) {
 	u.initFocused = focused
 }
 
-func (u *UserInterface) Vibrate(duration time.Duration, magnitude float64) {
-	// magnitude is ignored.
-
-	if js.Global().Get("navigator").Get("vibrate").Truthy() {
-		js.Global().Get("navigator").Call("vibrate", float64(duration/time.Millisecond))
-	}
-}
-
 func (u *UserInterface) Input() *Input {
 	return &u.input
 }

internal/vibrate/vibrate_android.go

@@ -15,7 +15,7 @@
 //go:build !ebitencbackend
 // +build !ebitencbackend
 
-package ui
+package vibrate
 
 import (
 	"time"
@@ -107,7 +107,7 @@ static void vibrateOneShot(uintptr_t java_vm, uintptr_t jni_env, uintptr_t ctx,
 */
 import "C"
 
-func (u *UserInterface) Vibrate(duration time.Duration, magnitude float64) {
+func Vibrate(duration time.Duration, magnitude float64) {
 	go func() {
 		_ = app.RunOnJVM(func(vm, env, ctx uintptr) error {
 			// TODO: This might be crash when this is called from init(). How can we detect this?

internal/vibrate/vibrate_ios.go

@@ -15,7 +15,7 @@
 //go:build ios && !ebitencbackend
 // +build ios,!ebitencbackend
 
-package ui
+package vibrate
 
 // #cgo CFLAGS: -x objective-c
 // #cgo LDFLAGS: -framework AVFoundation -framework CoreHaptics -framework Foundation
@@ -114,7 +114,7 @@ import (
 	"time"
 )
 
-func (u *UserInterface) Vibrate(duration time.Duration, magnitude float64) {
+func Vibrate(duration time.Duration, magnitude float64) {
 	go func() {
 		C.vibrate(C.double(float64(duration)/float64(time.Second)), C.double(magnitude))
 	}()

internal/vibrate/vibrate_js.go

@@ -0,0 +1,28 @@
+// Copyright 2022 The Ebiten Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package vibrate
+
+import (
+	"syscall/js"
+	"time"
+)
+
+func Vibrate(duration time.Duration, magnitude float64) {
+	// magnitude is ignored.
+
+	if js.Global().Get("navigator").Get("vibrate").Truthy() {
+		js.Global().Get("navigator").Call("vibrate", float64(duration/time.Millisecond))
+	}
+}

internal/vibrate/vibrate_null.go

@@ -0,0 +1,26 @@
+// Copyright 2022 The Ebiten Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//go:build (!android && !ios && !js) || ebitencbackend
+// +build !android,!ios,!js ebitencbackend
+
+package vibrate
+
+import (
+	"time"
+)
+
+func Vibrate(duration time.Duration, magnitude float64) {
+	// Do nothing.
+}

vibrate.go

@@ -18,7 +18,7 @@ import (
 	"time"
 
 	"github.com/hajimehoshi/ebiten/v2/internal/gamepad"
-	"github.com/hajimehoshi/ebiten/v2/internal/ui"
+	"github.com/hajimehoshi/ebiten/v2/internal/vibrate"
 )
 
 // VibrateOptions represents the options for device vibration.
@@ -51,7 +51,7 @@ type VibrateOptions struct {
 //
 // Vibrate is concurrent-safe.
 func Vibrate(options *VibrateOptions) {
-	ui.Get().Vibrate(options.Duration, options.Magnitude)
+	vibrate.Vibrate(options.Duration, options.Magnitude)
 }
 
 // VibrateGamepadOptions represents the options for gamepad vibration.