feat: initial commit

pkg/browser/gioui/browser.go

@@ -0,0 +1,118 @@
+package gioui
+
+import (
+	"context"
+	"sync"
+
+	"forge.cadoles.com/arcad/arcast/pkg/browser"
+	"gioui.org/app"
+	"gioui.org/f32"
+	"gioui.org/layout"
+	"github.com/gioui-plugins/gio-plugins/webviewer"
+	"gitlab.com/wpetit/goweb/logger"
+)
+
+type Browser struct {
+	window *app.Window
+	tag    int
+
+	url     string
+	changed bool
+
+	status browser.Status
+	title  string
+
+	mutex sync.Mutex
+}
+
+func (b *Browser) Layout(gtx layout.Context) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	events := gtx.Events(&b.tag)
+	for _, evt := range events {
+		switch ev := evt.(type) {
+		case webviewer.TitleEvent:
+			b.title = ev.Title
+		case webviewer.NavigationEvent:
+			b.url = ev.URL
+		}
+	}
+
+	ctx := context.Background()
+	logger.Debug(ctx, "drawing")
+
+	webviewer.WebViewOp{Tag: &b.tag}.Push(gtx.Ops)
+
+	webviewer.OffsetOp{Point: f32.Point{Y: float32(gtx.Constraints.Max.Y - gtx.Constraints.Max.Y)}}.Add(gtx.Ops)
+	webviewer.RectOp{Size: f32.Point{X: float32(gtx.Constraints.Max.X), Y: float32(gtx.Constraints.Max.Y)}}.Add(gtx.Ops)
+
+	if b.changed {
+		logger.Debug(ctx, "url changed", logger.F("url", b.url))
+		webviewer.NavigateOp{URL: b.url}.Add(gtx.Ops)
+		b.changed = false
+	}
+}
+
+// Load implements browser.Browser.
+func (b *Browser) Load(url string) error {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	b.url = url
+	b.changed = true
+	b.status = browser.StatusCasting
+
+	b.window.Invalidate()
+
+	return nil
+}
+
+// Status implements browser.Browser.
+func (b *Browser) Status() (browser.Status, error) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	return b.status, nil
+}
+
+// Title implements browser.Browser.
+func (b *Browser) Title() (string, error) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	return b.title, nil
+}
+
+// URL implements browser.Browser.
+func (b *Browser) URL() (string, error) {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	return b.url, nil
+}
+
+// Reset implements browser.Browser.
+func (b *Browser) Reset(url string) error {
+	b.mutex.Lock()
+	defer b.mutex.Unlock()
+
+	b.url = url
+	b.changed = true
+	b.status = browser.StatusIdle
+
+	b.window.Invalidate()
+
+	return nil
+}
+
+func NewBrowser(window *app.Window) *Browser {
+	return &Browser{
+		window:  window,
+		url:     "",
+		changed: true,
+		status:  browser.StatusIdle,
+	}
+}
+
+var _ browser.Browser = &Browser{}