browser.go


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// Package browser provides helpers to open files, readers, and urls in a browser window.
//
// The choice of which browser is started is entirely client dependant.
package browser

import (
	"fmt"
	"io"
	"io/ioutil"
	"path/filepath"
)

// OpenFile opens new browser window for the file path.
func OpenFile(path string) error {
	path, err := filepath.Abs(path)
	if err != nil {
		return err
	}
	return OpenURL("file://" + path)
}

// OpenReader consumes the contents of r and presents the
// results in a new browser window.
func OpenReader(r io.Reader) error {
	f, err := ioutil.TempFile("", "browser")
	if err != nil {
		return fmt.Errorf("browser: could not create temporary file: %v", err)
	}
	if _, err := io.Copy(f, r); err != nil {
		f.Close()
		return fmt.Errorf("browser: caching temporary file failed: %v", err)
	}
	if err := f.Close(); err != nil {
		return fmt.Errorf("browser: caching temporary file failed: %v", err)
	}
	return OpenFile(f.Name())
}

// OpenURL opens a new browser window pointing to url.
func OpenURL(url string) error {
	return openBrowser(url)
}