@wordpress/editor/src/store/selectors.native.js

Enhanced block editor for WordPress posts.

/**
 * WordPress dependencies
 */
import { createRegistrySelector } from '@wordpress/data';

/**
 * Internal dependencies
 */
import {
	isEditedPostDirty,
	isEditedPostSaveable,
	hasChangedContent,
} from './selectors.js';

export * from './selectors.js';

/**
 * Returns true if post title is selected.
 *
 * @param {Object} state Global application state.
 *
 * @return {boolean} Whether current post title is selected.
 */
export function isPostTitleSelected( state ) {
	return state.postTitle.isSelected;
}

/**
 * Returns true if the post can be autosaved, or false otherwise.
 *
 * @param {Object} state    Global application state.
 * @param {Object} autosave A raw autosave object from the REST API.
 *
 * @return {boolean} Whether the post can be autosaved.
 */
export const isEditedPostAutosaveable = createRegistrySelector(
	() => ( state ) => {
		// A post must contain a title, an excerpt, or non-empty content to be valid for autosaving.
		if ( ! isEditedPostSaveable( state ) ) {
			return false;
		}

		// To avoid an expensive content serialization, use the content dirtiness
		// flag in place of content field comparison against the known autosave.
		// This is not strictly accurate, and relies on a tolerance toward autosave
		// request failures for unnecessary saves.
		if ( hasChangedContent( state ) ) {
			return true;
		}

		if ( isEditedPostDirty( state ) ) {
			return true;
		}

		return false;
	}
);