This should have been several separate commits

examples/clipboard/main.go

@@ -1,6 +1,7 @@
 package main
 
 import "io"
+import "image"
 import "git.tebibyte.media/sashakoshka/tomo"
 import "git.tebibyte.media/sashakoshka/tomo/data"
 import "git.tebibyte.media/sashakoshka/tomo/theme"
@@ -15,7 +16,7 @@ func main () {
 }
 
 func run () {
-	window, _ := tomo.NewWindow(2, 2)
+	window, _ := tomo.NewWindow(256, 2)
 	window.SetTitle("Clipboard")
 
 	container := containers.NewContainer(basicLayouts.Vertical { true, true })
@@ -25,8 +26,41 @@ func run () {
 	copyButton.SetIcon(theme.IconCopy)
 	pasteButton := basicElements.NewButton("Paste")
 	pasteButton.SetIcon(theme.IconPaste)
+	pasteImageButton := basicElements.NewButton("Image")
+	pasteImageButton.SetIcon(theme.IconPictures)
 
-	clipboardCallback := func (clipboard io.Reader, err error) {
+	imageClipboardCallback := func (clipboard data.Data, err error) {
+		if err != nil {
+			popups.NewDialog (
+				popups.DialogKindError,
+				window,
+				"Error",
+				"Cannot get clipboard:\n" + err.Error())
+			return 
+		}
+
+		imageData, ok := clipboard[data.M("image", "png")]
+		if !ok {
+			popups.NewDialog (
+				popups.DialogKindError,
+				window,
+				"Clipboard Empty",
+				"No image data in clipboard")
+			return 
+		}
+
+		img, _, err := image.Decode(imageData)
+		if err != nil {
+			popups.NewDialog (
+				popups.DialogKindError,
+				window,
+				"Error",
+				"Cannot decode image:\n" + err.Error())
+			return 
+		}
+		imageWindow(img)
+	}
+	clipboardCallback := func (clipboard data.Data, err error) {
 		if err != nil {
 			popups.NewDialog (
 				popups.DialogKindError,
@@ -36,7 +70,8 @@ func run () {
 			return 
 		}
 		
-		if clipboard == nil {
+		textData, ok := clipboard[data.MimePlain]
+		if !ok {
 			popups.NewDialog (
 				popups.DialogKindError,
 				window,
@@ -45,24 +80,40 @@ func run () {
 			return 
 		}
 
-		text, _ := io.ReadAll(clipboard)
-		tomo.Do (func () {
-			textInput.SetValue(string(text))
-		})
+		text, _ := io.ReadAll(textData)
+		textInput.SetValue(string(text))
 	}
 	copyButton.OnClick (func () {
 		window.Copy(data.Text(textInput.Value()))
 	})
 	pasteButton.OnClick (func () {
-		window.Paste(data.MimePlain, clipboardCallback)
+		window.Paste(clipboardCallback, data.MimePlain)
+	})
+	pasteImageButton.OnClick (func () {
+		window.Paste(imageClipboardCallback, data.M("image", "png"))
 	})
 	
 	container.Adopt(textInput, true)
 	controlRow.Adopt(copyButton, true)
 	controlRow.Adopt(pasteButton, true)
+	controlRow.Adopt(pasteImageButton, true)
 	container.Adopt(controlRow, false)
 	window.Adopt(container)
 		
 	window.OnClose(tomo.Stop)
 	window.Show()
 }
+
+func imageWindow (image image.Image) {
+	window, _ := tomo.NewWindow(2, 2)
+	window.SetTitle("Clipboard Image")
+	container := containers.NewContainer(basicLayouts.Vertical { true, true })
+	closeButton := basicElements.NewButton("Ok")
+	closeButton.SetIcon(theme.IconYes)
+	closeButton.OnClick(window.Close)
+	
+	container.Adopt(basicElements.NewImage(image), true)
+	container.Adopt(closeButton, false)
+	window.Adopt(container)
+	window.Show()
+}