Variable PostingGalleryPickerScreen`Const`

PostingGalleryPickerScreen: ScreenDefinition<
    "PostingGalleryPicker",
    "screen",
    { origin: "feed"
    | "reels-tab" },
    { creationSessionId: string; mode: "post"; origin: "feed" | "reels-tab" },
    PostingGalleryPickerState,
    never,
    MobileSession | MobileNavigation | MobileUserFlows | AndroidPostingMedia,
    {
        pickMedia: (
            self: ScreenHandle,
            state: PostingGalleryPickerState,
        ) => (
            ...args: [
                files: readonly [
                    PostingPhotoInput
                    | PostingVideoInput,
                    PostingPhotoInput | PostingVideoInput,
                    PostingPhotoInput | PostingVideoInput,
                ],
            ],
        ) => Effect<
            AssembledHandle<
                "PostingPostEdit",
                "screen",
                {
                    creationSessionId: string;
                    media: | readonly [
                        {
                            byteLength: number;
                            height: number;
                            id: string;
                            kind: "photo";
                            mimeType: (...)
                            | (...)
                            | (...);
                            width: number;
                        },
                    ]
                    | readonly [
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                    ];
                    origin: "feed"
                    | "reels-tab";
                },
                {
                    next: (
                        self: ScreenHandle,
                        state: {
                            creationSessionId: string;
                            media: readonly [(...)] | readonly [(...), (...), (...)];
                            origin: "feed" | "reels-tab";
                        },
                    ) => (
                        ...args: [],
                    ) => Effect<
                        AssembledHandle<
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                        >,

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),
                    >;
                },
                Record<never, never>,
                ScreenHandle,
                "required",
                true,
                never,
                AndroidScreens,
            >,

                | IgCheckpointError
                | IgAccountSuspendedError
                | IgAccountDisabledError
                | IgLoginRequiredError
                | IgUserLoggedOutError
                | ScreenDataError
                | ScreenEnterConcurrentError
                | ScreenEdgeInputError
                | PostingMediaFormatError,
            | MobileDevice
            | GraphqlJsonHttp
            | MobileApplication
            | MobileNavigation
            | ScreenStack
            | ScreenCatalog
            | AndroidPostingMedia,
        >;
        pickPhoto: (
            self: ScreenHandle,
            state: PostingGalleryPickerState,
        ) => (
            ...args: [photo: PostingPhotoInput],
        ) => Effect<
            AssembledHandle<
                "PostingPostEdit",
                "screen",
                {
                    creationSessionId: string;
                    media: | readonly [
                        {
                            byteLength: number;
                            height: number;
                            id: string;
                            kind: "photo";
                            mimeType: (...)
                            | (...)
                            | (...);
                            width: number;
                        },
                    ]
                    | readonly [
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                    ];
                    origin: "feed"
                    | "reels-tab";
                },
                {
                    next: (
                        self: ScreenHandle,
                        state: {
                            creationSessionId: string;
                            media: readonly [(...)] | readonly [(...), (...), (...)];
                            origin: "feed" | "reels-tab";
                        },
                    ) => (
                        ...args: [],
                    ) => Effect<
                        AssembledHandle<
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                        >,

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),
                    >;
                },
                Record<never, never>,
                ScreenHandle,
                "required",
                true,
                never,
                AndroidScreens,
            >,

                | IgCheckpointError
                | IgAccountSuspendedError
                | IgAccountDisabledError
                | IgLoginRequiredError
                | IgUserLoggedOutError
                | ScreenDataError
                | ScreenEnterConcurrentError
                | ScreenEdgeInputError
                | PostingMediaFormatError,
            | MobileDevice
            | GraphqlJsonHttp
            | MobileApplication
            | MobileNavigation
            | ScreenStack
            | ScreenCatalog
            | AndroidPostingMedia,
        >;
        pickPhotos: (
            self: ScreenHandle,
            state: PostingGalleryPickerState,
        ) => (
            ...args: [photos: readonly [PostingPhotoInput, PostingPhotoInput]],
        ) => Effect<
            AssembledHandle<
                "PostingPostEdit",
                "screen",
                {
                    creationSessionId: string;
                    media: | readonly [
                        {
                            byteLength: number;
                            height: number;
                            id: string;
                            kind: "photo";
                            mimeType: (...)
                            | (...)
                            | (...);
                            width: number;
                        },
                    ]
                    | readonly [
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                        | {
                            byteLength: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        }
                        | {
                            byteLength: ...;
                            durationMs: ...;
                            height: ...;
                            id: ...;
                            kind: ...;
                            mimeType: ...;
                            width: ...;
                        },
                    ];
                    origin: "feed"
                    | "reels-tab";
                },
                {
                    next: (
                        self: ScreenHandle,
                        state: {
                            creationSessionId: string;
                            media: readonly [(...)] | readonly [(...), (...), (...)];
                            origin: "feed" | "reels-tab";
                        },
                    ) => (
                        ...args: [],
                    ) => Effect<
                        AssembledHandle<
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                        >,

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),

                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...)
                            | (...),
                    >;
                },
                Record<never, never>,
                ScreenHandle,
                "required",
                true,
                never,
                AndroidScreens,
            >,

                | IgCheckpointError
                | IgAccountSuspendedError
                | IgAccountDisabledError
                | IgLoginRequiredError
                | IgUserLoggedOutError
                | ScreenDataError
                | ScreenEnterConcurrentError
                | ScreenEdgeInputError
                | PostingMediaFormatError,
            | MobileDevice
            | GraphqlJsonHttp
            | MobileApplication
            | MobileNavigation
            | ScreenStack
            | ScreenCatalog
            | AndroidPostingMedia,
        >;
        pickVideo: (
            self: ScreenHandle,
            state: PostingGalleryPickerState,
        ) => (
            ...args: [video: PostingVideoInput],
        ) => Effect<
            AssembledHandle<
                "PostingReelEditor",
                "screen",
                {
                    assetId: string;
                    creationSessionId: string;
                    draftId: string;
                    entry: "reel-mode"
                    | "post-mode";
                    media: {
                        byteLength: number;
                        durationMs: number;
                        height: number;
                        id: string;
                        kind: "video";
                        mimeType: "video/mp4";
                        width: number;
                    };
                    origin: "feed"
                    | "reels-tab";
                },
                {
                    next: EditorNext;
                    openMusicBrowser: (
                        self: ScreenHandle,
                        state: {
                            assetId: string;
                            creationSessionId: string;
                            draftId: string;
                            entry: "reel-mode" | "post-mode";
                            media: {
                                byteLength: number;
                                durationMs: number;
                                height: number;
                                id: string;
                                kind: "video";
                                mimeType: "video/mp4";
                                width: number;
                            };
                            origin: "feed"
                            | "reels-tab";
                        },
                    ) => (
                        ...args: [],
                    ) => Effect<
                        AssembledHandle<
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                            (...),
                        >,
                        (...) | (...) | (...) | (...) | (...) | (...) | (...) | (...),
                        (...) | (...) | (...) | (...) | (...) | (...) | (...),
                    >;
                },
                Record<never, never>,
                ScreenHandle,
                "required",
                true,
                never,
                AndroidScreens,
            >,

                | IgCheckpointError
                | IgAccountSuspendedError
                | IgAccountDisabledError
                | IgLoginRequiredError
                | IgUserLoggedOutError
                | ScreenDataError
                | ScreenEnterConcurrentError
                | ScreenEdgeInputError
                | PostingMediaFormatError,
            | PlainJsonApiHttp
            | Signature
            | MobileSession
            | MobileDevice
            | GraphqlJsonHttp
            | MobileApplication
            | MobileNavigation
            | MobileUserFlows
            | ScreenStack
            | AndroidQuickPromotionStash
            | ScreenCatalog
            | AndroidPostingMedia,
        >;
        switchMode: (
            self: ScreenHandle,
            state: PostingGalleryPickerState,
        ) => (
            ...args: [mode: "reel" | "story"],
        ) => Effect<
            AssembledHandle<
                "PostingCamera",
                "screen",
                {
                    cameraSessionId: string;
                    entry: "reels-tab"
                    | "gallery-picker"
                    | "feed-button"
                    | "camera-switch";
                    mode: "reel" | "story";
                    origin: "feed" | "reels-tab";
                },
                {
                    openGallery: (
                        self: ScreenHandle,
                        state: PostingCameraState,
                    ) => (
                        ...args: [],
                    ) => Effect<
                        PostingCameraGalleryHandle,
                        (...)
                        | (...)
                        | (...)
                        | (...)
                        | (...)
                        | (...)
                        | (...)
                        | (...),
                        (...) | (...) | (...) | (...) | (...) | (...) | (...) | (...),
                    >;
                    switchMode: (
                        self: ScreenHandle,
                        state: PostingCameraState,
                    ) => ScreenEdgeBound<
                        ScreenEdgeShape<
                            PostingCameraScreenDefinition,
                            readonly [(...)],
                            "button",
                            AndroidScreens,
                        >,
                        (mode: "story") => Effect<(...), (...), (...)>,
                    >;
                },
                Record<never, never>,
                ScreenHandle,
                "required",
                true,
                never,
                AndroidScreens,
            >,

                | IgCheckpointError
                | IgAccountSuspendedError
                | IgAccountDisabledError
                | IgLoginRequiredError
                | IgUserLoggedOutError
                | ScreenDataError
                | ScreenEnterConcurrentError
                | ScreenEdgeInputError,
            | PlainJsonApiHttp
            | Signature
            | MobileSession
            | MobileDevice
            | GraphqlJsonHttp
            | MobileApplication
            | MobileNavigation
            | MobileUserFlows
            | ScreenStack
            | ScreenCatalog
            | AndroidPostingMedia,
        >;
    },
    Record<never, never>,
    never,
    never,
> = ...

GalleryPickerFragment:gallery_picker, the screen the feed's bottom-bar create button opens (Android 451): the person's photos and videos in a grid, under the mode selector that offers POST, STORY, REEL and LIVE. This is the POST mode's gallery; REEL and STORY open the creation camera instead (PostingCameraScreen).

What a person does here is pick: one photo, several photos (the grid's Select mode, a carousel), or a video. Opening the screen sends no request: the app sends only Pigeon telemetry at the open.

Actions: pickPhoto(photo) and pickPhotos(photos) open the post editor (PostingPostEditScreen) with the picked files — the bytes go to the process's media pool, the editor receives their descriptors; a photo in a format the app's picker does not offer is the typed PostingMediaFormatError. pickMedia(files) is the same Select mode with photos and videos mixed (at least two files; a carousel whose video child is encoded and uploaded with its poster frame); pickVideo(video) takes one video through the reel pipeline; switchMode(mode) moves the selector to REEL or STORY, which opens the creation camera (PostingCameraScreen).

How it is reached: FeedTimelineScreen.openCreation() (the post mode, the default), the GalleryPickerFragment:gallery_picker:2:camera_tab_bar entry.

No screenshot: the grid shows the test account's gallery.

Guide: The gallery picker

Variable PostingGalleryPickerScreenConst

Settings

Variable PostingGalleryPickerScreen`Const`