Beispiel #1
0
func TestWebView_URI(t *testing.T) {
	setup()
	defer teardown()

	mux.HandleFunc("/", func(w http.ResponseWriter, _ *http.Request) {})

	wantURI := server.URL + "/"
	var gotURI string
	webView.Connect("notify::uri", func() {
		glib.IdleAdd(func() bool {
			gotURI = webView.URI()
			if gotURI != "" {
				gtk.MainQuit()
			}
			return false
		})
	})

	glib.IdleAdd(func() bool {
		webView.LoadURI(server.URL)
		return false
	})

	gtk.Main()

	if wantURI != gotURI {
		t.Errorf("want URI %q, got %q", wantURI, gotURI)
	}
}
Beispiel #2
0
func TestWebView_Title(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	wantTitle := "foo"
	var gotTitle string
	webView.Connect("notify::title", func() {
		glib.IdleAdd(func() bool {
			gotTitle = webView.Title()
			if gotTitle != "" {
				gtk.MainQuit()
			}
			return false
		})
	})

	glib.IdleAdd(func() bool {
		webView.LoadHTML("<html><head><title>"+wantTitle+"</title></head><body></body></html>", "")
		return false
	})

	gtk.Main()

	if wantTitle != gotTitle {
		t.Errorf("want title %q, got %q", wantTitle, gotTitle)
	}
}
Beispiel #3
0
func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	win.Add(windowWidget())

	// Native GTK is not thread safe, and thus, gotk3's GTK bindings may not
	// be used from other goroutines.  Instead, glib.IdleAdd() must be used
	// to add a function to run in the GTK main loop when it is in an idle
	// state.
	//
	// Two examples of using glib.IdleAdd() are shown below.  The first runs
	// a user created function, LabelSetTextIdle, and passes it two
	// arguments for a label and the text to set it with.  The second calls
	// (*gtk.Label).SetText directly, passing in only the text as an
	// argument.
	//
	// If the function passed to glib.IdleAdd() returns one argument, and
	// that argument is a bool, this return value will be used in the same
	// manner as a native g_idle_add() call.  If this return value is false,
	// the function will be removed from executing in the GTK main loop's
	// idle state.  If the return value is true, the function will continue
	// to execute when the GTK main loop is in this state.
	go func() {
		for {
			time.Sleep(time.Second)
			s := fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err := glib.IdleAdd(LabelSetTextIdle, topLabel, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
			s = fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err = glib.IdleAdd(bottomLabel.SetText, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
		}
	}()

	win.ShowAll()
	gtk.Main()
}
Beispiel #4
0
func TestWebView_LoadURI_load_failed(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	loadFailed := false
	loadFinished := false
	webView.Connect("load-failed", func() {
		loadFailed = true
	})
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			loadFinished = true
			gtk.MainQuit()
		}
	})

	glib.IdleAdd(func() bool {
		// Load a bad URL to trigger load failure.
		webView.LoadURI("http://127.0.0.1:99999")
		return false
	})

	gtk.Main()

	if !loadFailed {
		t.Error("!loadFailed")
	}
	if !loadFinished {
		t.Error("!loadFinished")
	}
}
Beispiel #5
0
func TestWebView_GetSnapshot(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			webView.GetSnapshot(func(img *image.RGBA, err error) {
				if err != nil {
					t.Errorf("GetSnapshot error: %q", err)
				}
				if img.Pix == nil {
					t.Error("!img.Pix")
				}
				if img.Stride == 0 || img.Rect.Max.X == 0 || img.Rect.Max.Y == 0 {
					t.Error("!img.Stride or !img.Rect.Max.X or !img.Rect.Max.Y")
				}
				gtk.MainQuit()
			})
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadHTML(`<p id=foo>abc</p>`, "")
		return false
	})

	gtk.Main()
}
Beispiel #6
0
func TestWebView_RunJavaScript_exception(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	wantErr := errors.New("An exception was raised in JavaScript")
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			webView.RunJavaScript(`throw new Error("foo")`, func(result *gojs.Value, err error) {
				if result != nil {
					ctx := webView.JavaScriptGlobalContext()
					t.Errorf("want result == nil, got %q", ctx.ToStringOrDie(result))
				}
				if !reflect.DeepEqual(wantErr, err) {
					t.Errorf("want error %q, got %q", wantErr, err)
				}
				gtk.MainQuit()
			})
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadHTML(`<p></p>`, "")
		return false
	})

	gtk.Main()
}
Beispiel #7
0
func TestWebView_RunJavaScript(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	wantResultString := "abc"
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			webView.RunJavaScript(`document.getElementById("foo").innerHTML`, func(result *gojs.Value, err error) {
				if err != nil {
					t.Errorf("RunJavaScript error: %s", err)
				}
				resultString := webView.JavaScriptGlobalContext().ToStringOrDie(result)
				if wantResultString != resultString {
					t.Errorf("want result string %q, got %q", wantResultString, resultString)
				}
				gtk.MainQuit()
			})
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadHTML(`<p id=foo>abc</p>`, "")
		return false
	})

	gtk.Main()
}
Beispiel #8
0
func TestWebView_LoadHTML(t *testing.T) {
	webView := NewWebView()
	defer webView.Destroy()

	loadOk := false
	webView.Connect("load-failed", func() {
		t.Errorf("load failed")
	})
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			loadOk = true
			gtk.MainQuit()
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadHTML("<p>hello</p>", "")
		return false
	})

	gtk.Main()

	if !loadOk {
		t.Error("!loadOk")
	}
}
Beispiel #9
0
func Example() {
	runtime.LockOSThread()
	gtk.Init(nil)

	webView := webkit2.NewWebView()
	defer webView.Destroy()

	webView.Connect("load-failed", func() {
		fmt.Println("Load failed.")
	})
	webView.Connect("load-changed", func(_ *glib.Object, i int) {
		loadEvent := webkit2.LoadEvent(i)
		switch loadEvent {
		case webkit2.LoadFinished:
			fmt.Println("Load finished.")
			fmt.Printf("Title: %q\n", webView.Title())
			fmt.Printf("URI: %s\n", webView.URI())
			webView.RunJavaScript("window.location.hostname", func(val *gojs.Value, err error) {
				if err != nil {
					fmt.Println("JavaScript error.")
				} else {
					fmt.Printf("Hostname (from JavaScript): %q\n", val)
				}
				gtk.MainQuit()
			})
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadURI("https://www.google.com/")
		return false
	})

	gtk.Main()

	// output:
	// Load finished.
	// Title: "Google"
	// URI: https://www.google.com/
	// Hostname (from JavaScript): "www.google.com"
}
Beispiel #10
0
// TestConnectNotifySignal ensures that property notification signals (those
// whose name begins with "notify::") are queried by the name "notify" (with the
// "::" and the property name omitted). This is because the signal is "notify"
// and the characters after the "::" are not recognized by the signal system.
//
// See
// https://developer.gnome.org/gobject/stable/gobject-The-Base-Object-Type.html#GObject-notify
// for background, and
// https://developer.gnome.org/gobject/stable/gobject-Signals.html#g-signal-new
// for the specification of valid signal names.
func TestConnectNotifySignal(t *testing.T) {
	runtime.LockOSThread()

	// Create any GObject that has defined properties.
	spacing := 0
	box, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, spacing)

	// Connect to a "notify::" signal to listen on property changes.
	box.Connect("notify::spacing", func() {
		gtk.MainQuit()
	})

	glib.IdleAdd(func(s string) bool {
		t.Log(s)
		spacing++
		box.SetSpacing(spacing)
		return true
	}, "IdleAdd executed")

	gtk.Main()
}
Beispiel #11
0
func TestWebView_LoadURI(t *testing.T) {
	setup()
	defer teardown()

	responseOk := false
	mux.HandleFunc("/", func(w http.ResponseWriter, _ *http.Request) {
		w.Write([]byte("abc"))
		responseOk = true
	})

	loadFinished := false
	webView.Connect("load-failed", func() {
		t.Errorf("load failed")
	})
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := LoadEvent(event)
		switch loadEvent {
		case LoadFinished:
			loadFinished = true
			gtk.MainQuit()
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadURI(server.URL)
		return false
	})

	gtk.Main()

	if !responseOk {
		t.Error("!responseOk")
	}
	if !loadFinished {
		t.Error("!loadFinished")
	}
}
Beispiel #12
0
func main() {
	flag.Usage = func() {
		fmt.Fprintln(os.Stderr)
		fmt.Fprintf(os.Stderr, "webkit-eval-js evaluates a JavaScript expression in the context of a web page\n")
		fmt.Fprintf(os.Stderr, "running in a headless instance of the WebKit browser.\n\n")
		fmt.Fprintf(os.Stderr, "Usage:\n\n")
		fmt.Fprintf(os.Stderr, "\twebkit-eval-js url script-file\n\n")
		fmt.Fprintf(os.Stderr, "url is the web page to execute the script in, and script-file is a local file\n")
		fmt.Fprintf(os.Stderr, "with the JavaScript you want to evaluate. The result is printed to stdout as JSON.\n\n")
		fmt.Fprintln(os.Stderr)
		fmt.Fprintf(os.Stderr, "Example usage:\n\n")
		fmt.Fprintf(os.Stderr, "\tTo return the value of `document.title` on https://google.com:\n")
		fmt.Fprintf(os.Stderr, "\t    $ echo document.title | webkit-eval-js https://google.com /dev/stdin\n")
		fmt.Fprintf(os.Stderr, "\tPrints:\n")
		fmt.Fprintf(os.Stderr, "\t    \"Google\"\n\n")
		fmt.Fprintf(os.Stderr, "Notes:\n\n")
		fmt.Fprintf(os.Stderr, "\tBecause a headless WebKit instance is used, your $DISPLAY must be set. Use\n")
		fmt.Fprintf(os.Stderr, "\tXvfb if you are running on a machine without an existing X server. See\n")
		fmt.Fprintf(os.Stderr, "\thttps://sourcegraph.com/github.com/sourcegraph/go-webkit2/readme for more info.\n")
		fmt.Fprintln(os.Stderr)
		os.Exit(1)
	}
	flag.Parse()

	if flag.NArg() != 2 {
		flag.Usage()
		os.Exit(1)
	}

	log := log.New(os.Stderr, "", 0)

	pageURL := flag.Arg(0)
	scriptFile := flag.Arg(1)

	if _, err := url.Parse(pageURL); err != nil {
		log.Fatalf("Failed to parse URL %q: %s", pageURL, err)
	}

	script, err := ioutil.ReadFile(scriptFile)
	if err != nil {
		log.Fatalf("Failed to open script file %q: %s", scriptFile, err)
	}

	runtime.LockOSThread()
	gtk.Init(nil)

	webView := webkit2.NewWebView()
	defer webView.Destroy()

	webView.Connect("load-failed", func() {
		fmt.Println("Load failed.")
	})
	webView.Connect("load-changed", func(_ *glib.Object, event int) {
		loadEvent := webkit2.LoadEvent(event)
		switch loadEvent {
		case webkit2.LoadFinished:
			webView.RunJavaScript(string(script), func(val *gojs.Value, err error) {
				if err != nil {
					log.Fatalf("JavaScript error: %s", err)
				} else {
					json, err := val.JSON()
					if err != nil {
						log.Fatal("JavaScript serialization error: %s", err)
					}
					fmt.Println(string(json))
				}
				gtk.MainQuit()
			})
		}
	})

	glib.IdleAdd(func() bool {
		webView.LoadURI(pageURL)
		return false
	})

	gtk.Main()
}