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Type playlist action creators

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This commit is contained in:
Jordan Eldredge 2018-09-17 08:32:52 -07:00
parent 365935c0b8
commit f093ca62c3
2 changed files with 27 additions and 23 deletions
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36
js/actionCreators/playlist.js → js/actionCreators/playlist.ts
View file

@ -5,7 +5,7 @@ import {
getSelectedTrackObjects
} from "../selectors";
import { clamp, sort } from "../utils";
import { clamp, sort, findLastIndex } from "../utils";
import {
REMOVE_TRACKS,
REMOVE_ALL_TRACKS,
@ -15,8 +15,9 @@ import {
SET_PLAYLIST_SCROLL_POSITION,
DRAG_SELECTED
} from "../actionTypes";
import { Dispatchable } from "../types";
export function cropPlaylist() {
export function cropPlaylist(): Dispatchable {
return (dispatch, getState) => {
const state = getState();
if (getSelectedTrackObjects(state).length === 0) {
@ -32,7 +33,7 @@ export function cropPlaylist() {
};
}
export function removeSelectedTracks() {
export function removeSelectedTracks(): Dispatchable {
return (dispatch, getState) => {
const {
playlist: { tracks }
@ -44,19 +45,19 @@ export function removeSelectedTracks() {
};
}
export function removeAllTracks() {
export function removeAllTracks(): Dispatchable {
return { type: REMOVE_ALL_TRACKS };
}
export function reverseList() {
export function reverseList(): Dispatchable {
return { type: REVERSE_LIST };
}
export function randomizeList() {
export function randomizeList(): Dispatchable {
return { type: RANDOMIZE_LIST };
}
export function sortListByTitle() {
export function sortListByTitle(): Dispatchable {
return (dispatch, getState) => {
const state = getState();
const trackOrder = sort(state.playlist.trackOrder, i =>
@ -66,11 +67,11 @@ export function sortListByTitle() {
};
}
export function setPlaylistScrollPosition(position) {
export function setPlaylistScrollPosition(position: number): Dispatchable {
return { type: SET_PLAYLIST_SCROLL_POSITION, position };
}
export function scrollNTracks(n) {
export function scrollNTracks(n: number): Dispatchable {
return (dispatch, getState) => {
const state = getState();
const overflow = getOverflowTrackCount(state);
@ -83,7 +84,7 @@ export function scrollNTracks(n) {
};
}
export function scrollPlaylistByDelta(e) {
export function scrollPlaylistByDelta(e: MouseWheelEvent): Dispatchable {
e.preventDefault();
return (dispatch, getState) => {
const state = getState();
@ -103,24 +104,15 @@ export function scrollPlaylistByDelta(e) {
};
}
export function scrollUpFourTracks() {
export function scrollUpFourTracks(): Dispatchable {
return scrollNTracks(-4);
}
export function scrollDownFourTracks() {
export function scrollDownFourTracks(): Dispatchable {
return scrollNTracks(4);
}
function findLastIndex(arr, cb) {
for (let i = arr.length - 1; i >= 0; i--) {
if (cb(arr[i])) {
return i;
}
}
return -1;
}
export function dragSelected(offset) {
export function dragSelected(offset: number): Dispatchable {
return (dispatch, getState) => {
const {
playlist: { trackOrder, tracks }

14
js/utils.ts
View file

@ -209,7 +209,10 @@ export function shuffle<T>(array: T[]): T[] {
return sorted;
}
export function sort<T>(array: T[], iteratee: (value: T) => number): T[] {
export function sort<T>(
array: T[],
iteratee: (value: T) => number | string
): T[] {
return [...array].sort((a, b) => {
const aKey = iteratee(a);
const bKey = iteratee(b);
@ -318,3 +321,12 @@ export const calculateBoundingBox = (windows: Window[]) =>
}),
{ top: 0, bottom: 0, left: 0, right: 0 }
);
export function findLastIndex<T>(arr: T[], cb: (val: T) => boolean) {
for (let i = arr.length - 1; i >= 0; i--) {
if (cb(arr[i])) {
return i;
}
}
return -1;
}