feat: 优化相册图片预览交互

suixinkanTests/TravelAlbumDetailViewControllerTests.swift

@@ -184,12 +184,13 @@ final class TravelAlbumDetailViewControllerTests: XCTestCase {
         controller.view.frame = CGRect(x: 0, y: 0, width: 390, height: 844)
         controller.view.layoutIfNeeded()
 
-        let retouchedButton = try XCTUnwrap(
+        let segmentedControl = try XCTUnwrap(
             controller.view.findSubview {
-                ($0 as? UIButton)?.accessibilityLabel == "精修后"
-            } as? UIButton
+                $0.accessibilityIdentifier == "travelAlbum.previewVariantSegmentedControl"
+            } as? UISegmentedControl
         )
-        retouchedButton.sendActions(for: .touchUpInside)
+        segmentedControl.selectedSegmentIndex = 1
+        segmentedControl.sendActions(for: .valueChanged)
         controller.view.layoutIfNeeded()
 
         let imageView = try XCTUnwrap(
@@ -205,6 +206,148 @@ final class TravelAlbumDetailViewControllerTests: XCTestCase {
         XCTAssertFalse(imageView.constraintsAffectingLayout(for: .vertical).isEmpty)
     }
 
+    func testPreviewUsesScreenshotChromeAndConstrainedImageViewport() throws {
+        UIView.setAnimationsEnabled(false)
+        defer { UIView.setAnimationsEnabled(true) }
+
+        let project = TravelAlbumPreviewProject(
+            originalMaterialId: 1,
+            assets: [
+                TravelAlbumPreviewAsset(
+                    id: "original-1",
+                    kind: .original,
+                    fileURL: "https://example.com/original.jpg",
+                    coverURL: "https://example.com/cover.jpg",
+                    fileName: "IMG_0002.jpeg",
+                    fileSize: 2_516_582
+                ),
+                TravelAlbumPreviewAsset(
+                    id: "retouched-1",
+                    kind: .retouched,
+                    fileURL: "",
+                    coverURL: "",
+                    fileName: "IMG_0002.jpeg",
+                    fileSize: 2_516_582
+                ),
+                TravelAlbumPreviewAsset(
+                    id: "atmosphere-1",
+                    kind: .atmosphere,
+                    fileURL: "",
+                    coverURL: "",
+                    fileName: "IMG_0002.jpeg",
+                    fileSize: 2_516_582
+                ),
+            ]
+        )
+        let controller = TravelAlbumPhotoPreviewViewController(
+            projects: [project],
+            totalCount: 10,
+            startProjectIndex: 0
+        )
+        controller.loadViewIfNeeded()
+        controller.view.frame = CGRect(x: 0, y: 0, width: 390, height: 844)
+        controller.view.layoutIfNeeded()
+
+        let topChrome = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewTopChrome"
+            }
+        )
+        let bottomChrome = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewBottomChrome"
+            }
+        )
+        let collectionView = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewCollectionView"
+            } as? UICollectionView
+        )
+        let highResolutionButton = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewHighResolutionButton"
+            } as? UIButton
+        )
+        let segmentedControl = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewVariantSegmentedControl"
+            } as? UISegmentedControl
+        )
+        let backButton = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewBackButton"
+            } as? UIButton
+        )
+
+        XCTAssertFalse(controller.prefersStatusBarHidden)
+        XCTAssertEqual(topChrome.backgroundColor, .black)
+        XCTAssertEqual(bottomChrome.backgroundColor, .black)
+        XCTAssertEqual(highResolutionButton.configuration?.title, "查看高清图")
+        XCTAssertEqual(segmentedControl.numberOfSegments, 3)
+        XCTAssertEqual(segmentedControl.selectedSegmentIndex, 0)
+        XCTAssertEqual(backButton.bounds.size, CGSize(width: 44, height: 44))
+        XCTAssertNil(backButton.configuration?.baseBackgroundColor)
+        XCTAssertEqual(collectionView.frame.minY, topChrome.frame.maxY, accuracy: 0.5)
+        XCTAssertEqual(collectionView.frame.maxY, bottomChrome.frame.minY, accuracy: 0.5)
+        XCTAssertTrue(controller.view.allLabels().contains { $0.text == "IMG_0002.jpeg" })
+        XCTAssertTrue(controller.view.allLabels().contains { $0.text == "2.4MB" })
+        XCTAssertTrue(controller.view.allLabels().contains { $0.text == "1/10" })
+
+        highResolutionButton.sendActions(for: .touchUpInside)
+
+        XCTAssertEqual(topChrome.alpha, 0)
+        XCTAssertEqual(bottomChrome.alpha, 0)
+    }
+
+    func testPreviewHidesVariantControlsAndHighResolutionButtonWithoutVariants() throws {
+        let project = TravelAlbumPreviewProject(
+            originalMaterialId: 1,
+            assets: [
+                TravelAlbumPreviewAsset(
+                    id: "original-1",
+                    kind: .original,
+                    fileURL: "https://example.com/original.jpg",
+                    coverURL: "https://example.com/cover.jpg",
+                    fileName: "IMG_0002.jpeg",
+                    fileSize: 2_516_582
+                ),
+            ]
+        )
+        let controller = TravelAlbumPhotoPreviewViewController(
+            projects: [project],
+            totalCount: 1,
+            startProjectIndex: 0
+        )
+        controller.loadViewIfNeeded()
+        controller.view.frame = CGRect(x: 0, y: 0, width: 390, height: 844)
+        controller.view.layoutIfNeeded()
+
+        let segmentedControl = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewVariantSegmentedControl"
+            } as? UISegmentedControl
+        )
+        let highResolutionButton = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewHighResolutionButton"
+            } as? UIButton
+        )
+        let collectionView = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewCollectionView"
+            } as? UICollectionView
+        )
+        let bottomChrome = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewBottomChrome"
+            }
+        )
+
+        XCTAssertTrue(segmentedControl.isHidden)
+        XCTAssertTrue(highResolutionButton.isHidden)
+        XCTAssertEqual(bottomChrome.frame.minY - collectionView.frame.maxY, 56, accuracy: 0.5)
+    }
+
     func testSelectionModeShowsAIRetouchOnLeftAndDeleteOnRight() async throws {
         let controller = TravelAlbumDetailViewController(albumId: 0)
         controller.loadViewIfNeeded()
@@ -479,10 +622,13 @@ final class TravelAlbumDetailViewControllerTests: XCTestCase {
         controller.loadViewIfNeeded()
         controller.view.layoutIfNeeded()
 
-        let retouchedButton = try XCTUnwrap(
-            controller.view.findSubview { ($0 as? UIButton)?.accessibilityLabel == "精修后" } as? UIButton
+        let segmentedControl = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewVariantSegmentedControl"
+            } as? UISegmentedControl
         )
-        retouchedButton.sendActions(for: .touchUpInside)
+        segmentedControl.selectedSegmentIndex = 1
+        segmentedControl.sendActions(for: .valueChanged)
         let aiButton = try XCTUnwrap(
             controller.view.findSubview { ($0 as? UIButton)?.accessibilityLabel == "AI修图" } as? UIButton
         )
@@ -563,10 +709,13 @@ final class TravelAlbumDetailViewControllerTests: XCTestCase {
         controller.loadViewIfNeeded()
         controller.view.frame = CGRect(x: 0, y: 0, width: 390, height: 844)
         controller.view.layoutIfNeeded()
-        let retouchedButton = try XCTUnwrap(
-            controller.view.findSubview { ($0 as? UIButton)?.accessibilityLabel == "精修后" } as? UIButton
+        let segmentedControl = try XCTUnwrap(
+            controller.view.findSubview {
+                $0.accessibilityIdentifier == "travelAlbum.previewVariantSegmentedControl"
+            } as? UISegmentedControl
         )
-        retouchedButton.sendActions(for: .touchUpInside)
+        segmentedControl.selectedSegmentIndex = 1
+        segmentedControl.sendActions(for: .valueChanged)
         let refreshButton = try XCTUnwrap(
             controller.view.findSubview {
                 $0.accessibilityIdentifier == "travelAlbum.previewRefreshButton"
@@ -575,18 +724,12 @@ final class TravelAlbumDetailViewControllerTests: XCTestCase {
 
         refreshButton.sendActions(for: .touchUpInside)
         await waitUntil { reloadCount == 1 && refreshButton.isEnabled }
-        XCTAssertTrue(
-            controller.view.findSubview {
-                ($0 as? UIButton)?.accessibilityLabel == "精修后"
-                    && $0.accessibilityTraits.contains(.selected)
-            } != nil
-        )
+        XCTAssertEqual(segmentedControl.selectedSegmentIndex, 1)
 
         refreshButton.sendActions(for: .touchUpInside)
         await waitUntil { reloadCount == 2 && refreshButton.isEnabled }
-        XCTAssertNil(
-            controller.view.findSubview { ($0 as? UIButton)?.accessibilityLabel == "精修后" }
-        )
+        XCTAssertTrue(segmentedControl.isHidden)
+        XCTAssertEqual(segmentedControl.numberOfSegments, 0)
         XCTAssertTrue(controller.view.allLabels().contains { $0.text == "原图.jpg" })
     }