@wordpress/editor/build-module/components/upload-progress-snackbar/tracker.mjs.map

Enhanced block editor for WordPress posts.

{
  "version": 3,
  "sources": ["../../../src/components/upload-progress-snackbar/tracker.js"],
  "sourcesContent": ["import { useSyncExternalStore } from '@wordpress/element';\n\n/**\n * A minimal in-memory tracker for in-flight media uploads that happen outside\n * the `@wordpress/upload-media` store (i.e. the traditional / non-CSM upload\n * path). The editor's `mediaUpload` wrapper writes to it; the\n * `UploadProgressSnackbar` reads from it.\n *\n * State shape: { total, completed, pending: string[] }\n * - `total`: total files registered in the current session.\n * - `completed`: files that have finished (succeeded OR errored).\n * - `pending`: remaining filenames in submission order.\n *\n * The tracker holds at most one \"session\" at a time — if a new batch starts\n * while one is in progress, its files are appended to the existing session.\n */\n\nlet state = null;\nconst listeners = new Set();\n\nfunction notify() {\n\tlisteners.forEach( ( listener ) => listener() );\n}\n\n/**\n * Registers a new batch of files that have started uploading.\n *\n * @param {string[]} filenames Filenames in submission order.\n */\nexport function addFiles( filenames ) {\n\tif ( ! filenames.length ) {\n\t\treturn;\n\t}\n\tif ( ! state ) {\n\t\tstate = { total: 0, completed: 0, pending: [] };\n\t}\n\tstate = {\n\t\ttotal: state.total + filenames.length,\n\t\tcompleted: state.completed,\n\t\tpending: [ ...state.pending, ...filenames ],\n\t};\n\tnotify();\n}\n\n/**\n * Advances the tracker by a number of finished files (success or error).\n *\n * @param {number} count Number of files that finished since the last call.\n */\nexport function advance( count ) {\n\tif ( ! state || count <= 0 ) {\n\t\treturn;\n\t}\n\tconst completed = Math.min( state.total, state.completed + count );\n\tconst pending = state.pending.slice( count );\n\tif ( completed >= state.total ) {\n\t\tstate = null;\n\t} else {\n\t\tstate = { total: state.total, completed, pending };\n\t}\n\tnotify();\n}\n\n/**\n * Resets the tracker to its empty state.\n *\n * Test-only helper: `state` is a module-level singleton, so tests call this in\n * `beforeEach` to isolate cases from one another. Not used in production -\n * `advance` clears the state on its own once every file in a batch finishes.\n */\nexport function reset() {\n\tif ( state === null ) {\n\t\treturn;\n\t}\n\tstate = null;\n\tnotify();\n}\n\n/**\n * Returns the current tracker state, or `null` when idle.\n *\n * @return {?{total: number, completed: number, pending: string[]}} Tracker state.\n */\nexport function getState() {\n\treturn state;\n}\n\nfunction subscribe( listener ) {\n\tlisteners.add( listener );\n\treturn () => {\n\t\tlisteners.delete( listener );\n\t};\n}\n\n/**\n * React hook that subscribes to the tracker.\n *\n * @return {?{total: number, completed: number, pending: string[]}} Tracker state.\n */\nexport function useTracker() {\n\treturn useSyncExternalStore( subscribe, getState, getState );\n}\n"],
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