Upgrade MyGo to v0.5.5

Elements are now pass-scoped value handles: tests that read bounds
after a frame bind a ui.Handle. pixel tells frames apart by the build
pass's root, since the Tester clock no longer moves on its own.

Fix the regressions the upgrade brought:
- Clipboard reads in input handlers go through c.Services().
- MyGo notes an overlay's opener after building it, so AutoFocus
  inside lost it; pixel.AutoFocus focuses through a Handle, and
  archtest bans the raw call. Dialogs hand the focus back again.
- Elements around a press stay hovered: Tooltip tells a press-given
  focus by focus arriving under the pointer.
- The web host moves the Tester clock with real time, at most 500 ms
  a call, and gives components the real clock.

The gallery's source index also accepts CRLF checkouts.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

files/archiveviewer.go

@@ -27,7 +27,7 @@ type ArchiveViewerOptions struct {
 }
 
 type ArchiveViewerResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Sorted reports a header click this frame.
 	Changed, Sorted bool
 }

files/diskusage.go

@@ -25,7 +25,7 @@ type DiskUsageOptions struct {
 var useSlots = []pixel.Slot{pixel.Info, pixel.Good, pixel.Warn, pixel.Magic, pixel.Bad, pixel.Accent}
 
 // DiskUsage stacks each use in one bar over a legend.
-func DiskUsage(c *ui.Context, text string, uses []Use, capacity int64, o DiskUsageOptions) *ui.Element {
+func DiskUsage(c *ui.Context, text string, uses []Use, capacity int64, o DiskUsageOptions) ui.Element {
 	k := pixel.K(c)
 	if capacity <= 0 {
 		panic(fmt.Sprintf("files: DiskUsage capacity %d", capacity))

files/filedetails.go

@@ -16,7 +16,7 @@ type FileDetailsOptions struct {
 }
 
 // FileDetails shows a file's icon, name, kind, size and dates.
-func FileDetails(c *ui.Context, f File, o FileDetailsOptions) *ui.Element {
+func FileDetails(c *ui.Context, f File, o FileDetailsOptions) ui.Element {
 	k := pixel.K(c)
 	check("FileDetails", f)
 	return ui.Column(c).Width(k.D(pixel.Or("FileDetails Width", o.Width, 220))).Gap(k.D(6)).Role(ui.RoleGroup).Label(f.Name).Children(func() {

files/fileexplorer.go

@@ -26,7 +26,7 @@ type FileExplorerOptions struct {
 }
 
 type FileExplorerResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Opened is Enter or a double click on a file.
 	Changed, Opened bool
 }

files/filegrid.go

@@ -17,7 +17,7 @@ type FileGridOptions struct {
 }
 
 type FileGridResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Opened is Enter or a double click on a file.
 	Changed, Opened bool
 }

files/fileicon.go

@@ -14,7 +14,7 @@ type FileIconOptions struct {
 }
 
 // FileIcon draws a kind: a folder or a dog-eared page.
-func FileIcon(c *ui.Context, kind Kind, o FileIconOptions) *ui.Element {
+func FileIcon(c *ui.Context, kind Kind, o FileIconOptions) ui.Element {
 	k := pixel.K(c)
 	ka := look(kind)
 	s := pixel.Or("FileIcon Scale", o.Scale, 1)

files/filepreview.go

@@ -24,7 +24,7 @@ type FilePreviewOptions struct {
 type previewKey struct{}
 
 // FilePreview shows a picture, else text, in a sunken pane.
-func FilePreview(c *ui.Context, name string, pv Preview, o FilePreviewOptions) *ui.Element {
+func FilePreview(c *ui.Context, name string, pv Preview, o FilePreviewOptions) ui.Element {
 	k := pixel.K(c)
 	w, h := pixel.Or("FilePreview W", o.W, 160), pixel.Or("FilePreview H", o.H, 120)
 	return ui.Column(c).Gap(k.D(2)).AlignItems(ui.Start).Role(ui.RoleGroup).Label(name).Children(func() {

files/memorycard.go

@@ -24,7 +24,7 @@ type MemoryCardOptions struct {
 }
 
 type MemoryCardResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Changed bool
 	// Deleted is the block whose DELETE was pressed, else -1.
 	Deleted int

files/pathbar.go

@@ -17,7 +17,7 @@ type PathBarOptions struct {
 }
 
 type PathBarResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Clicked is the folder clicked, else -1.
 	Clicked int
 }
@@ -48,7 +48,7 @@ func PathBar(c *ui.Context, text string, parts []string, o PathBarOptions) PathB
 					})
 					break
 				}
-				shell, base, st := pixel.Shell(c, func() *ui.Element {
+				shell, base, st := pixel.Shell(c, func() ui.Element {
 					return ui.ButtonBase(c).Label(part).Disabled(o.Disabled)
 				})
 				if base.Clicked() {

files/quotameter.go

@@ -33,7 +33,7 @@ var (
 )
 
 // QuotaMeter shows storage used as gems filling up.
-func QuotaMeter(c *ui.Context, text string, used, quota int64, o QuotaMeterOptions) *ui.Element {
+func QuotaMeter(c *ui.Context, text string, used, quota int64, o QuotaMeterOptions) ui.Element {
 	k := pixel.K(c)
 	n := pixel.Or("QuotaMeter Gems", o.Gems, 10)
 	if n > 40 || used < 0 || quota <= 0 {

files/recentfiles.go

@@ -18,7 +18,7 @@ type RecentFilesOptions struct {
 }
 
 type RecentFilesResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Opened is Enter or a double click on a file.
 	Changed, Opened bool
 }

files/sharepanel.go

@@ -28,7 +28,7 @@ type SharePanelOptions struct {
 }
 
 type SharePanelResult struct {
-	Element         *ui.Element
+	Element         ui.Element
 	Copied, Changed bool
 }
 

files/syncstatus.go

@@ -88,7 +88,7 @@ var syncs = [...]struct {
 }
 
 // SyncStatus is a cloud: synced, syncing (arrows turning) or failed.
-func SyncStatus(c *ui.Context, state SyncState, o SyncStatusOptions) *ui.Element {
+func SyncStatus(c *ui.Context, state SyncState, o SyncStatusOptions) ui.Element {
 	k := pixel.K(c)
 	if state < Synced || state > SyncFailed {
 		panic(fmt.Sprintf("files: SyncStatus state %d", state))

files/trash.go

@@ -15,7 +15,7 @@ type TrashOptions struct {
 }
 
 type TrashResult struct {
-	Element *ui.Element
+	Element ui.Element
 	Emptied bool
 }
 

files/uploadqueue.go

@@ -29,7 +29,7 @@ type UploadQueueOptions struct {
 }
 
 type UploadQueueResult struct {
-	Element *ui.Element
+	Element ui.Element
 	// Canceled is the upload whose ✕ was pressed, else -1.
 	Canceled int
 }