feat(apple): the tray gradient blur is back — as a real blur this time

The form screens' pinned title and legend lost their gradient blur when
GamepadTrayScrim went (2590238b): the scrim was `.ultraThinMaterial`, and a
material by definition lifts and tints whatever it blurs — it read grey over
the aurora, and washed with the palette's ground it read coloured. There is
no public way to blur a backdrop without that tint, so the layer was deleted
rather than re-tuned, and the rows have scrolled to a raw edge since.

Glur's GlurView blurs the backdrop through a gradient with NO material stage
on top — the rows soften as they slide under the pinned trays and nothing
carries a colour. Three things about the adoption are deliberate:

  - It is the library's GlurBackdrop product, which uses a private API
    (a variable-blur CAFilter on UIKit/AppKit). The public `.glur()`
    modifier is a Metal shader on a view's OWN content and silently no-ops
    over platform-backed views like ScrollView, so it cannot reach a
    backdrop at all. GlurBackdrop ships as a separate module precisely so
    adopters can weigh the App Store exposure; it disables hit testing
    itself, so the band never eats a touch.

  - The dependency is pinned by REVISION: GlurBackdrop exists only on main —
    no release carries it (the newest tag, `1.1`, predates it and is not
    three-component semver anyway, so `from:` resolution stops at 1.0.4,
    which doesn't have the product). Wired into BOTH manifests — the
    package for `swift build`, and the xcodeproj (remote package reference
    + per-target product deps) for the app targets, which compile these
    sources themselves and know nothing of Package.swift's dependencies.

  - The band takes NO content-side overhang, unlike the scrim it replaces —
    and dropping the scrim's hard-won -44/-72 runway is the point, not an
    oversight. That runway existed because a material carries body at every
    alpha and had to dissolve OUTSIDE the tray; carried over here it blurred
    fully-visible rows at rest (first on-glass verdict). Glur's ramp reaches
    literal zero, so the band ends exactly at the tray's layout edge: open
    content untouched, rows soften only where they actually slide under.
    The 80 pt outer bleed and the pinned shape
    (`transaction { $0.animation = nil }`) are kept — full-bleed by LAYOUT
    rather than `.ignoresSafeArea()`, so a push never shows the band
    growing into place.

Mounted exactly where the scrim was: settings, add-host and pair trays
(top + bottom) and the library title (top). Glur is attributed on the
Acknowledgements screen alongside the bundled font — it is a Swift package,
so the Rust-closure notices generator rightly knows nothing about it.

macOS build, tvOS typecheck; band placement and the blur itself verified on
the iPad on glass.
This commit is contained in:
2026-08-10 12:46:45 +02:00
parent bac63059a9
commit a14b000c9b
10 changed files with 153 additions and 2 deletions
+13
View File
@@ -0,0 +1,13 @@
{
"pins" : [
{
"identity" : "glur",
"kind" : "remoteSourceControl",
"location" : "https://github.com/joogps/Glur.git",
"state" : {
"revision" : "ba4f05d3c9a608ec773b9305f2af6089390de68a"
}
}
],
"version" : 2
}
+17 -1
View File
@@ -16,6 +16,17 @@ let package = Package(
.library(name: "PunktfunkShared", targets: ["PunktfunkShared"]),
.executable(name: "PunktfunkClient", targets: ["PunktfunkClient"]),
],
dependencies: [
// Progressive (gradient) backdrop blur for the form screens' trays a real blur with no
// material tint stage (see GamepadTrayBlur). Pinned by REVISION, not `from:`: the
// GlurBackdrop product exists only on main no release carries it (the newest tag,
// `1.1`, predates it, and is not three-component semver anyway, so version-based
// resolution stops at 1.0.4). The revision is main's head at adoption time; a revision
// pin stays reproducible when the branch moves.
.package(
url: "https://github.com/joogps/Glur.git",
revision: "ba4f05d3c9a608ec773b9305f2af6089390de68a"),
],
targets: [
.binaryTarget(name: "PunktfunkCore", path: "PunktfunkCore.xcframework"),
// No dependencies by design an extension process links this alone.
@@ -51,7 +62,12 @@ let package = Package(
// (The tvOS slide-transition package is referenced by the Xcode PROJECT only
// its manifest breaks SwiftPM whole-graph validation on macOS, and only the
// Punktfunk-tvOS target links it; the #if os(tvOS) import never compiles here.)
.executableTarget(name: "PunktfunkClient", dependencies: ["PunktfunkKit"]),
.executableTarget(
name: "PunktfunkClient",
dependencies: [
"PunktfunkKit",
.product(name: "GlurBackdrop", package: "Glur"),
]),
// PunktfunkCore is a direct dep too so the wire tests can name the C ABI's
// `PunktfunkInputEvent` / `PUNKTFUNK_INPUT_KIND_*` when asserting the gamepad byte layout.
.testTarget(
@@ -11,6 +11,12 @@
BB0000000000000000000005 /* PunktfunkKit in Frameworks */ = {isa = PBXBuildFile; productRef = BB0000000000000000000006 /* PunktfunkKit */; };
CC0000000000000000000005 /* PunktfunkKit in Frameworks */ = {isa = PBXBuildFile; productRef = CC0000000000000000000006 /* PunktfunkKit */; };
DD0000000000000000000003 /* SwiftUINavigationTransitions in Frameworks */ = {isa = PBXBuildFile; productRef = DD0000000000000000000002 /* SwiftUINavigationTransitions */; };
EE0000000000000000000012 /* Glur in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000002 /* Glur */; };
EE0000000000000000000013 /* GlurBackdrop in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000003 /* GlurBackdrop */; };
EE0000000000000000000014 /* Glur in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000004 /* Glur */; };
EE0000000000000000000015 /* GlurBackdrop in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000005 /* GlurBackdrop */; };
EE0000000000000000000016 /* Glur in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000006 /* Glur */; };
EE0000000000000000000017 /* GlurBackdrop in Frameworks */ = {isa = PBXBuildFile; productRef = EE0000000000000000000007 /* GlurBackdrop */; };
E295569A300948B9009F939C /* WidgetKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E2955699300948B9009F939C /* WidgetKit.framework */; };
E295569C300948B9009F939C /* SwiftUI.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = E295569B300948B9009F939C /* SwiftUI.framework */; };
E29556A9300948BA009F939C /* PunktfunkWidgetsExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = E2955697300948B9009F939C /* PunktfunkWidgetsExtension.appex */; settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
@@ -88,6 +94,8 @@
buildActionMask = 2147483647;
files = (
AA0000000000000000000005 /* PunktfunkKit in Frameworks */,
EE0000000000000000000012 /* Glur in Frameworks */,
EE0000000000000000000013 /* GlurBackdrop in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@@ -96,6 +104,8 @@
buildActionMask = 2147483647;
files = (
BB0000000000000000000005 /* PunktfunkKit in Frameworks */,
EE0000000000000000000014 /* Glur in Frameworks */,
EE0000000000000000000015 /* GlurBackdrop in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@@ -105,6 +115,8 @@
files = (
CC0000000000000000000005 /* PunktfunkKit in Frameworks */,
DD0000000000000000000003 /* SwiftUINavigationTransitions in Frameworks */,
EE0000000000000000000016 /* Glur in Frameworks */,
EE0000000000000000000017 /* GlurBackdrop in Frameworks */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@@ -175,6 +187,8 @@
name = Punktfunk;
packageProductDependencies = (
AA0000000000000000000006 /* PunktfunkKit */,
EE0000000000000000000002 /* Glur */,
EE0000000000000000000003 /* GlurBackdrop */,
);
productName = Punktfunk;
productReference = AA0000000000000000000001 /* Punktfunk.app */;
@@ -201,6 +215,8 @@
name = "Punktfunk-iOS";
packageProductDependencies = (
BB0000000000000000000006 /* PunktfunkKit */,
EE0000000000000000000004 /* Glur */,
EE0000000000000000000005 /* GlurBackdrop */,
);
productName = "Punktfunk-iOS";
productReference = BB0000000000000000000001 /* Punktfunk-iOS.app */;
@@ -226,6 +242,8 @@
packageProductDependencies = (
CC0000000000000000000006 /* PunktfunkKit */,
DD0000000000000000000002 /* SwiftUINavigationTransitions */,
EE0000000000000000000006 /* Glur */,
EE0000000000000000000007 /* GlurBackdrop */,
);
productName = "Punktfunk-tvOS";
productReference = CC0000000000000000000001 /* Punktfunk-tvOS.app */;
@@ -283,6 +301,7 @@
packageReferences = (
AA000000000000000000000F /* XCLocalSwiftPackageReference "." */,
DD0000000000000000000001 /* XCRemoteSwiftPackageReference "swiftui-navigation-transitions" */,
EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */,
);
preferredProjectObjectVersion = 77;
productRefGroup = AA0000000000000000000008 /* Products */;
@@ -848,6 +867,14 @@
minimumVersion = 0.18.0;
};
};
EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */ = {
isa = XCRemoteSwiftPackageReference;
repositoryURL = "https://github.com/joogps/Glur.git";
requirement = {
kind = revision;
revision = ba4f05d3c9a608ec773b9305f2af6089390de68a;
};
};
/* End XCRemoteSwiftPackageReference section */
/* Begin XCSwiftPackageProductDependency section */
@@ -868,6 +895,36 @@
package = DD0000000000000000000001 /* XCRemoteSwiftPackageReference "swiftui-navigation-transitions" */;
productName = SwiftUINavigationTransitions;
};
EE0000000000000000000002 /* Glur */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = Glur;
};
EE0000000000000000000003 /* GlurBackdrop */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = GlurBackdrop;
};
EE0000000000000000000004 /* Glur */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = Glur;
};
EE0000000000000000000005 /* GlurBackdrop */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = GlurBackdrop;
};
EE0000000000000000000006 /* Glur */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = Glur;
};
EE0000000000000000000007 /* GlurBackdrop */ = {
isa = XCSwiftPackageProductDependency;
package = EE0000000000000000000001 /* XCRemoteSwiftPackageReference "Glur" */;
productName = GlurBackdrop;
};
E2CAFE000000000000000002 /* PunktfunkShared */ = {
isa = XCSwiftPackageProductDependency;
productName = PunktfunkShared;
@@ -1,6 +1,14 @@
{
"originHash" : "5d17a752eb57d190a90cbd663718ff44034b24fe0ae1baafea7677db2d49da6f",
"originHash" : "bb1ce9bc6042f166bd0aad78a15081e673781d3a90fa52fd8ec8a08875878ef6",
"pins" : [
{
"identity" : "glur",
"kind" : "remoteSourceControl",
"location" : "https://github.com/joogps/Glur.git",
"state" : {
"revision" : "ba4f05d3c9a608ec773b9305f2af6089390de68a"
}
},
{
"identity" : "objc-runtime-tools",
"kind" : "remoteSourceControl",
@@ -73,6 +73,7 @@ struct GamepadAddHostView: View {
.padding(.top, gamepadTitleTopPadding(compact: compact))
.padding(.bottom, gamepadTitleBottomPadding(compact: compact))
.frame(maxWidth: .infinity, alignment: .leading)
.background { GamepadTrayBlur(edge: .top) }
}
.safeAreaInset(edge: .bottom, spacing: 0) {
bottomTray
@@ -83,6 +84,7 @@ struct GamepadAddHostView: View {
gamepadLegendBottomPadding(
compact ? 12 : 18, tier: metrics.tier, displayBottom: displayBottomInset))
.padding(.top, compact ? 6 : 10)
.background { GamepadTrayBlur(edge: .bottom) }
}
// No aurora the same clean Liquid-Glass-over-dark base as the gamepad settings screen.
// Hosted in the shell, the field is the shell's (see GamepadSettingsView's twin).
@@ -5,6 +5,8 @@
// iOS/iPadOS, macOS (the couch Mac-mini case), and tvOS where the same screens are driven by
// the native focus engine instead of the controller poll (see GamepadCarousel/GamepadMenuList).
import Glur
import GlurBackdrop
import PunktfunkKit
import SwiftUI
#if os(iOS) || os(macOS) || os(tvOS)
@@ -280,6 +282,45 @@ func gamepadLegendBottomPadding(
return max(-displayBottom, margin - displayBottom)
}
/// The tray gradient blur, back as a real progressive BACKDROP blur this time.
///
/// GamepadTrayScrim did this with `.ultraThinMaterial`, and a material by definition lifts and
/// tints whatever it blurs: it read grey over the aurora, and washed with the palette's ground it
/// read coloured, which is why 2590238b deleted it. Glur's `GlurView` blurs the backdrop through
/// a gradient with NO material stage on top, so the rows soften as they slide under the pinned
/// title and legend and nothing carries a colour. It is the library's PRIVATE-API product
/// (`GlurBackdrop`) the public `.glur()` modifier is a shader on a view's own content and
/// silently no-ops over platform-backed views like ScrollView, so it cannot reach a backdrop at
/// all. Hit testing is disabled inside GlurView; the band never eats a touch.
///
/// Mounted exactly where the scrim was: `.background` of each form screen's safe-area tray.
struct GamepadTrayBlur: View {
let edge: VerticalEdge
var body: some View {
// offset 0 puts the ramp's LITERAL ZERO exactly at the band's content edge, so nothing
// in the open field is touched which is why, unlike the scrim, this band takes NO
// content-side overhang. The scrim's -44/-72 runway existed because a material carries
// body at every alpha and had to dissolve OUTSIDE the tray; carrying those numbers over
// here blurred fully-visible rows at rest (field verdict on the first cut). Full
// strength lands at 60% of the band, so the tray's own text always sits on the strong
// region while the ramp still reads as a gradient, not an edge.
GlurView(
radius: 14, offset: 0, interpolation: 0.6,
direction: edge == .top ? .up : .down)
// Full-bleed by LAYOUT, not `.ignoresSafeArea()`: safe-area expansion resolves a
// beat after insertion (outside any geometry group and outside this view's own
// transaction), which reads as a visible pop. 80 pt clears every inset on every
// device, and backgrounds never clip the overhang simply draws.
.padding(edge == .top ? .top : .bottom, -80)
.padding(.horizontal, -80)
// And the shape must NEVER animate: mounted inside a pushed shell layer, any late
// geometry would ride the push's transaction and visibly grow into place. The
// layer's own fade/slide still carries the band; only its SHAPE is pinned.
.transaction { $0.animation = nil }
}
}
/// One glyph + label cell in a hint bar.
struct GamepadHint: Identifiable {
let glyph: String
@@ -38,6 +38,7 @@ struct GamepadLibraryScreen: View {
.padding(.horizontal, 24)
.padding(.top, gamepadTitleTopPadding(compact: compact))
.padding(.bottom, gamepadTitleBottomPadding(compact: compact))
.background { GamepadTrayBlur(edge: .top) }
}
// A hardware keyboard's Esc still closes, without chrome.
.background {
@@ -54,6 +54,15 @@ struct AcknowledgementsView: View {
Divider()
Text("Swift packages")
.font(.geist(Self.headlineFont, .semibold, relativeTo: .headline))
Text("Punktfunk uses Glur (progressive backdrop blur), "
+ "© 2023 João Gabriel, under the MIT License.")
.font(.geist(Self.captionFont, relativeTo: .caption))
.foregroundStyle(.secondary)
Divider()
Text("Third-party software")
.font(.geist(Self.headlineFont, .semibold, relativeTo: .headline))
Text(
@@ -163,6 +163,7 @@ struct GamepadSettingsView: View {
}
.padding(.top, gamepadTitleTopPadding(compact: compact))
.padding(.bottom, gamepadTitleBottomPadding(compact: compact))
.background { GamepadTrayBlur(edge: .top) }
}
.safeAreaInset(edge: .bottom, alignment: .leading, spacing: 0) {
VStack(alignment: .leading, spacing: 8) {
@@ -182,6 +183,7 @@ struct GamepadSettingsView: View {
compact ? 12 : 18, tier: metrics.tier, displayBottom: displayBottomInset))
.padding(.top, compact ? 6 : 10)
.frame(maxWidth: .infinity, alignment: .leading)
.background { GamepadTrayBlur(edge: .bottom) }
}
// The launcher's living field, calmed (GamepadFormBackground) the glass rows keep real
// colour and luminance to lens without the launcher's contrast, and the palette setting
@@ -76,6 +76,7 @@ struct GamepadPairView: View {
.padding(.top, gamepadTitleTopPadding(compact: compact))
.padding(.bottom, gamepadTitleBottomPadding(compact: compact))
.frame(maxWidth: .infinity, alignment: .leading)
.background { GamepadTrayBlur(edge: .top) }
}
.safeAreaInset(edge: .bottom, spacing: 0) {
bottomTray
@@ -87,6 +88,7 @@ struct GamepadPairView: View {
gamepadLegendBottomPadding(
compact ? 12 : 18, tier: metrics.tier, displayBottom: displayBottomInset))
.padding(.top, compact ? 6 : 10)
.background { GamepadTrayBlur(edge: .bottom) }
}
// Hosted in the shell, the field is the shell's own (see GamepadAddHostView's twin).
.background {