feat(android): use native webview instead of gioui framework

pkg/browser/proxy/browser.go

@@ -0,0 +1,110 @@
+package proxy
+
+import (
+	"sync"
+
+	"forge.cadoles.com/arcad/arcast/pkg/browser"
+	"github.com/pkg/errors"
+)
+
+var (
+	ErrNotInitialized = errors.New("not initialized")
+)
+
+type Browser struct {
+	loadURL  func(url string)
+	getURL   func() string
+	getTitle func() string
+
+	status browser.Status
+	mutex  sync.RWMutex
+}
+
+// Load implements browser.Browser.
+func (b *Browser) Load(url string) error {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	if b.loadURL == nil {
+		return errors.WithStack(ErrNotInitialized)
+	}
+
+	b.loadURL(url)
+	b.status = browser.StatusCasting
+
+	return nil
+}
+
+// Reset implements browser.Browser.
+func (b *Browser) Reset(url string) error {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	if b.loadURL == nil {
+		return errors.WithStack(ErrNotInitialized)
+	}
+
+	b.loadURL(url)
+	b.status = browser.StatusIdle
+
+	return nil
+}
+
+// Status implements browser.Browser.
+func (b *Browser) Status() (browser.Status, error) {
+	b.mutex.RLock()
+	defer b.mutex.RUnlock()
+
+	return b.status, nil
+}
+
+// Title implements browser.Browser.
+func (b *Browser) Title() (string, error) {
+	b.mutex.RLock()
+	defer b.mutex.RUnlock()
+
+	if b.getTitle == nil {
+		return "", errors.WithStack(ErrNotInitialized)
+	}
+
+	return b.getTitle(), nil
+}
+
+// URL implements browser.Browser.
+func (b *Browser) URL() (string, error) {
+	b.mutex.RLock()
+	defer b.mutex.RUnlock()
+
+	if b.getURL == nil {
+		return "", errors.WithStack(ErrNotInitialized)
+	}
+
+	return b.getURL(), nil
+}
+
+func (b *Browser) SetLoadURL(fn func(url string)) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	b.loadURL = fn
+}
+
+func (b *Browser) SetGetTitle(fn func() string) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	b.getTitle = fn
+}
+
+func (b *Browser) SetGetURL(fn func() string) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	b.getURL = fn
+}
+
+func NewBrowser() *Browser {
+	return &Browser{}
+}
+
+var _ browser.Browser = &Browser{}