Merge pull request #31 from owulveryck/orientation

Orientation

README.md

@@ -39,9 +39,15 @@ Note: The processus is fault tolerant and should resume automatically on sleep/w
 
 - Point your browser to [`http://localhost:8080/`](http://localhost:8080/)
 
-Note: click on the video to take a screenshot. The screenshot is a png file with transparent background.
+The client exposes those endpoints:
 
-_Note_: there is also an experimental (and ugly) [/conf`](http://localhost:8080/conf) endpoint to activate some features on the fly.
+- `/screenshot` takes a screenshot in png
+- `/orientation?orientation=[landscape|portrait]` to change the orientation
+- `/conf` ugly and incomplete configuration panel
+- `/gob` to get a gob encoded picture (for development purpose)
+- `/raw` to get a raw picture (a gray bitmap image)
+
+_Note_: click on the video to take a screenshot. The screenshot is a png file with transparent background.
 
 ### Configuration
 

client/main.go

@@ -41,6 +41,7 @@ func main() {
 	})
 	mux.HandleFunc("/favicon.ico", faviconHandler)
 	mux.HandleFunc("/screenshot", g.GetScreenshot)
+	mux.HandleFunc("/orientation", g.Rotate)
 	mux.Handle("/conf", &c)
 	mux.HandleFunc("/gob", g.GetGob)
 	mux.HandleFunc("/raw", g.GetRaw)

internal/client/grabber.go

@@ -141,6 +141,26 @@ func (g *Grabber) GetGob(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+// Rotate the picture
+func (g *Grabber) Rotate(w http.ResponseWriter, r *http.Request) {
+	orientations, ok := r.URL.Query()["orientation"]
+	if !ok || len(orientations[0]) < 1 {
+		http.Error(w, "Url Param 'orientation' is missing", http.StatusBadRequest)
+		return
+	}
+	orientation := orientations[0]
+	switch orientation {
+	case "landscape":
+		g.rot.orientation = landscape
+	case "portrait":
+		g.rot.orientation = portrait
+	default:
+		http.Error(w, "Unknown orientation "+orientation, http.StatusBadRequest)
+		return
+
+	}
+}
+
 // GetScreenshot sends a png encoded version of the image currently in the grabber
 func (g *Grabber) GetScreenshot(w http.ResponseWriter, r *http.Request) {
 	tick := time.NewTicker(1 * time.Second)