mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 13:07:26 +01:00
70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
// Copyright 2015 Hajime Hoshi
|
|
//
|
|
// 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.
|
|
|
|
// +build js
|
|
|
|
package ebitenutil
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"fmt"
|
|
"path"
|
|
|
|
"github.com/gopherjs/gopherjs/js"
|
|
)
|
|
|
|
type file struct {
|
|
*bytes.Reader
|
|
}
|
|
|
|
func (f *file) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func OpenFile(path string) (ReadSeekCloser, error) {
|
|
var err error
|
|
var content *js.Object
|
|
ch := make(chan struct{})
|
|
req := js.Global.Get("XMLHttpRequest").New()
|
|
req.Call("open", "GET", path, true)
|
|
req.Set("responseType", "arraybuffer")
|
|
req.Call("addEventListener", "load", func() {
|
|
defer close(ch)
|
|
status := req.Get("status").Int()
|
|
if 200 <= status && status < 400 {
|
|
content = req.Get("response")
|
|
return
|
|
}
|
|
err = errors.New(fmt.Sprintf("http error: %d", status))
|
|
})
|
|
req.Call("addEventListener", "error", func() {
|
|
defer close(ch)
|
|
err = errors.New(fmt.Sprintf("XMLHttpRequest error: %s", req.Get("statusText").String()))
|
|
})
|
|
req.Call("send")
|
|
<-ch
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
data := js.Global.Get("Uint8Array").New(content).Interface().([]uint8)
|
|
f := &file{bytes.NewReader(data)}
|
|
return f, nil
|
|
}
|
|
|
|
func JoinStringsIntoFilePath(elems ...string) string {
|
|
return path.Join(elems...)
|
|
}
|