pyqt_reactive.widgets.shared.manager_list_updater

List update pipeline for AbstractManagerWidget.

Classes

`ManagerListUpdateOperations`(item_list, ...)	Nominal operation port consumed by ManagerListUpdater.
`ManagerListUpdateSnapshot`(backing_items, ...)	Current and desired list state for one manager update pass.
`ManagerListUpdater`()	Owns the list-widget update phases for manager widgets.

class pyqt_reactive.widgets.shared.manager_list_updater.ManagerListUpdateOperations(item_list: QListWidget, backing_items: list[ListItemT], item_id: Callable[[ListItemT], str], should_preserve_selection: Callable[[], bool], placeholder: Callable[[], tuple[str, PlaceholderDataT] | None], prepare_update: Callable[[], UpdateContextT], clear_scope_cache: Callable[[], None], subscribed_scope_ids: Callable[[], set[str]], scope_for_item: Callable[[ListItemT], str], cleanup_flash_subscriptions: Callable[[], None], clear_scope_to_list_item: Callable[[], None], format_item: Callable[[ListItemT, int, UpdateContextT], DisplayTextT], should_refresh_text_for_scope_change: Callable[[ListItemT, set[str]], bool], list_item_data_for: Callable[[ListItemT, int], ListItemDataT], tooltip_for: Callable[[ListItemT], str], extra_data_for: Callable[[ListItemT, int], dict[int, RoleValueT]], set_styling_roles: Callable[[QListWidgetItem, DisplayTextT, ListItemT], None], refresh_styling_roles: Callable[[QListWidgetItem, ListItemT], None], apply_scope_color: Callable[[QListWidgetItem, ListItemT, int], None], subscribe_flash: Callable[[ListItemT, QListWidgetItem, str], None], post_update: Callable[[], None], update_button_states: Callable[[], None])[source]

Nominal operation port consumed by ManagerListUpdater.

item_list: QListWidget

backing_items: list[ListItemT]

item_id: Callable[[ListItemT], str]

should_preserve_selection: Callable[[], bool]

placeholder: Callable[[], tuple[str, PlaceholderDataT] | None]

prepare_update: Callable[[], UpdateContextT]

clear_scope_cache: Callable[[], None]

subscribed_scope_ids: Callable[[], set[str]]

scope_for_item: Callable[[ListItemT], str]

cleanup_flash_subscriptions: Callable[[], None]

clear_scope_to_list_item: Callable[[], None]

format_item: Callable[[ListItemT, int, UpdateContextT], DisplayTextT]

should_refresh_text_for_scope_change: Callable[[ListItemT, set[str]], bool]

list_item_data_for: Callable[[ListItemT, int], ListItemDataT]

tooltip_for: Callable[[ListItemT], str]

extra_data_for: Callable[[ListItemT, int], dict[int, RoleValueT]]

set_styling_roles: Callable[[QListWidgetItem, DisplayTextT, ListItemT], None]

refresh_styling_roles: Callable[[QListWidgetItem, ListItemT], None]

apply_scope_color: Callable[[QListWidgetItem, ListItemT, int], None]

subscribe_flash: Callable[[ListItemT, QListWidgetItem, str], None]

post_update: Callable[[], None]

update_button_states: Callable[[], None]

__init__(item_list: QListWidget, backing_items: list[ListItemT], item_id: Callable[[ListItemT], str], should_preserve_selection: Callable[[], bool], placeholder: Callable[[], tuple[str, PlaceholderDataT] | None], prepare_update: Callable[[], UpdateContextT], clear_scope_cache: Callable[[], None], subscribed_scope_ids: Callable[[], set[str]], scope_for_item: Callable[[ListItemT], str], cleanup_flash_subscriptions: Callable[[], None], clear_scope_to_list_item: Callable[[], None], format_item: Callable[[ListItemT, int, UpdateContextT], DisplayTextT], should_refresh_text_for_scope_change: Callable[[ListItemT, set[str]], bool], list_item_data_for: Callable[[ListItemT, int], ListItemDataT], tooltip_for: Callable[[ListItemT], str], extra_data_for: Callable[[ListItemT, int], dict[int, RoleValueT]], set_styling_roles: Callable[[QListWidgetItem, DisplayTextT, ListItemT], None], refresh_styling_roles: Callable[[QListWidgetItem, ListItemT], None], apply_scope_color: Callable[[QListWidgetItem, ListItemT, int], None], subscribe_flash: Callable[[ListItemT, QListWidgetItem, str], None], post_update: Callable[[], None], update_button_states: Callable[[], None]) → None

class pyqt_reactive.widgets.shared.manager_list_updater.ManagerListUpdateSnapshot(backing_items: list[ListItemT], current_count: int, subscribed_scope_ids: set[str])[source]

Current and desired list state for one manager update pass.

backing_items: list[ListItemT]

current_count: int

subscribed_scope_ids: set[str]

property expected_count: int

scopes_changed(operations: ManagerListUpdateOperations[ListItemT, UpdateContextT, DisplayTextT, ListItemDataT, PlaceholderDataT, RoleValueT]) → bool[source]

can_update_in_place(operations: ManagerListUpdateOperations[ListItemT, UpdateContextT, DisplayTextT, ListItemDataT, PlaceholderDataT, RoleValueT]) → bool[source]

__init__(backing_items: list[ListItemT], current_count: int, subscribed_scope_ids: set[str]) → None

class pyqt_reactive.widgets.shared.manager_list_updater.ManagerListUpdater[source]

Owns the list-widget update phases for manager widgets.

update(operations: ManagerListUpdateOperations[ListItemT, UpdateContextT, DisplayTextT, ListItemDataT, PlaceholderDataT, RoleValueT]) → None[source]

refresh_scopes(operations: ManagerListUpdateOperations[ListItemT, UpdateContextT, DisplayTextT, ListItemDataT, PlaceholderDataT, RoleValueT], scope_ids: set[str], changed_paths_by_scope: dict[str, set[str]] | None = None) → bool[source]: Refresh visual roles for existing rows addressed by ObjectState scope.