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| /*
* Copyright (c) 2015 NAVER Corp.
* egjs projects are licensed under the MIT license
*/
import { window } from "./browser";
import { PREVENT_DRAG_CSSPROPS } from "./const";
import { PanInputOption } from "./inputType/PanInput";
import { PinchInputOption } from "./inputType/PinchInput";
import { ObjectInterface } from "./types";
import {
DIRECTION_NONE,
DIRECTION_VERTICAL,
DIRECTION_HORIZONTAL,
DIRECTION_ALL,
} from "./const";
declare let jQuery: any;
export const toArray = (nodes: NodeList): HTMLElement[] => {
// const el = Array.prototype.slice.call(nodes);
// for IE8
const el = [];
for (let i = 0, len = nodes.length; i < len; i++) {
el.push(nodes[i]);
}
return el;
};
export const $ = (param, multi = false) => {
let el;
if (typeof param === "string") {
// String (HTML, Selector)
// check if string is HTML tag format
const match = param.match(/^<([a-z]+)\s*([^>]*)>/);
// creating element
if (match) {
// HTML
const dummy = document.createElement("div");
dummy.innerHTML = param;
el = toArray(dummy.childNodes);
} else {
// Selector
el = toArray(document.querySelectorAll(param));
}
Eif (!multi) {
el = el.length >= 1 ? el[0] : undefined;
}
} else if (param === window) {
// window
el = param;
} else Iif ("value" in param || "current" in param) {
el = param.value! || param.current!;
} else if (param.nodeName && (param.nodeType === 1 || param.nodeType === 9)) {
// HTMLElement, Document
el = param;
} else Iif (
("jQuery" in window && param instanceof jQuery) ||
param.constructor.prototype.jquery
) {
// jQuery
el = multi ? param.toArray() : param.get(0);
} else Eif (Array.isArray(param)) {
el = param.map((v) => $(v));
Iif (!multi) {
el = el.length >= 1 ? el[0] : undefined;
}
}
return el;
};
let raf = window.requestAnimationFrame || window.webkitRequestAnimationFrame;
let caf = window.cancelAnimationFrame || window.webkitCancelAnimationFrame;
Iif (raf && !caf) {
const keyInfo = {};
const oldraf = raf;
raf = (callback: FrameRequestCallback) => {
const wrapCallback = (timestamp: number) => {
if (keyInfo[key]) {
callback(timestamp);
}
};
const key = oldraf(wrapCallback);
keyInfo[key] = true;
return key;
};
caf = (key: number) => {
delete keyInfo[key];
};
} else Iif (!(raf && caf)) {
raf = (callback: FrameRequestCallback) => {
return window.setTimeout(() => {
callback(
((window.performance &&
window.performance.now &&
window.performance.now()) as number) || new Date().getTime()
);
}, 16);
};
caf = window.clearTimeout;
}
/**
* A polyfill for the window.requestAnimationFrame() method.
* @see https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame
* @private
*/
export const requestAnimationFrame = (fp) => {
return raf(fp);
};
/**
* A polyfill for the window.cancelAnimationFrame() method. It cancels an animation executed through a call to the requestAnimationFrame() method.
* @param {Number} key − The ID value returned through a call to the requestAnimationFrame() method. <ko>requestAnimationFrame() 메서드가 반환한 아이디 값</ko>
* @see https://developer.mozilla.org/en-US/docs/Web/API/Window/cancelAnimationFrame
* @private
*/
export const cancelAnimationFrame = (key) => {
caf(key);
};
export const map = <T, U>(
obj: ObjectInterface<T>,
callback: (value: T, key: string) => U
): ObjectInterface<U> => {
const tranformed: ObjectInterface<U> = {};
for (const k in obj) {
Eif (k) {
tranformed[k] = callback(obj[k], k);
}
}
return tranformed;
};
export const filter = <T>(
obj: ObjectInterface<T>,
callback: (value: T, key: string) => boolean
): ObjectInterface<T> => {
const filtered: ObjectInterface<T> = {};
for (const k in obj) {
if (k && callback(obj[k], k)) {
filtered[k] = obj[k];
}
}
return filtered;
};
export const every = <T>(
obj: ObjectInterface<T>,
callback: (value: T, key: string) => boolean
) => {
for (const k in obj) {
if (k && !callback(obj[k], k)) {
return false;
}
}
return true;
};
export const equal = (
target: ObjectInterface,
base: ObjectInterface
): boolean => {
return every(target, (v, k) => v === base[k]);
};
const roundNumFunc = {};
export const roundNumber = (num: number, roundUnit: number) => {
// Cache for performance
if (!roundNumFunc[roundUnit]) {
roundNumFunc[roundUnit] = getRoundFunc(roundUnit);
}
return roundNumFunc[roundUnit](num);
};
export const roundNumbers = (
num: ObjectInterface<number>,
roundUnit: ObjectInterface<number> | number
): ObjectInterface<number> => {
if (!num || !roundUnit) {
return num;
}
return map(num, (value, key) =>
roundNumber(
value,
typeof roundUnit === "number" ? roundUnit : roundUnit[key]
)
);
};
export const getDecimalPlace = (val: number): number => {
Iif (!isFinite(val)) {
return 0;
}
const v = `${val}`;
if (v.indexOf("e") >= 0) {
// Exponential Format
// 1e-10, 1e-12
let p = 0;
let e = 1;
while (Math.round(val * e) / e !== val) {
e *= 10;
p++;
}
return p;
}
// In general, following has performance benefit.
// https://jsperf.com/precision-calculation
return v.indexOf(".") >= 0 ? v.length - v.indexOf(".") - 1 : 0;
};
export const inversePow = (n: number) => {
// replace Math.pow(10, -n) to solve floating point issue.
// eg. Math.pow(10, -4) => 0.00009999999999999999
return 1 / Math.pow(10, n);
};
export const getRoundFunc = (v: number) => {
const p = v < 1 ? Math.pow(10, getDecimalPlace(v)) : 1;
return (n: number) => {
if (v === 0) {
return 0;
}
return Math.round(Math.round(n / v) * v * p) / p;
};
};
export const getAngle = (posX: number, posY: number) => {
return (Math.atan2(posY, posX) * 180) / Math.PI;
};
export const isCssPropsFromAxes = (originalCssProps: {
[key: string]: string;
}) => {
let same = true;
Object.keys(PREVENT_DRAG_CSSPROPS).forEach((prop) => {
if (
!originalCssProps ||
originalCssProps[prop] !== PREVENT_DRAG_CSSPROPS[prop]
) {
same = false;
}
});
return same;
};
export const getDirection = (
useHorizontal: boolean,
useVertical: boolean
): number => {
if (useHorizontal && useVertical) {
return DIRECTION_ALL;
} else if (useHorizontal) {
return DIRECTION_HORIZONTAL;
} else Eif (useVertical) {
return DIRECTION_VERTICAL;
} else {
return DIRECTION_NONE;
}
};
export const useDirection = (
checkType: number,
direction: number,
userDirection?: number
): boolean => {
if (userDirection) {
return !!(
direction === DIRECTION_ALL ||
(direction & checkType && userDirection & checkType)
);
} else {
return !!(direction & checkType);
}
};
export const setCssProps = (
element: HTMLElement,
option: PanInputOption | PinchInputOption,
direction: number
): { [key: string]: string } => {
const touchActionMap = {
[DIRECTION_NONE]: "auto",
[DIRECTION_ALL]: "none",
[DIRECTION_VERTICAL]: "pan-x",
[DIRECTION_HORIZONTAL]: "pan-y",
};
const oldCssProps = {};
Eif (element && element.style) {
const touchAction = option.touchAction
? option.touchAction
: touchActionMap[direction];
const newCssProps = {
...PREVENT_DRAG_CSSPROPS,
"touch-action":
element.style["touch-action"] === "none" ? "none" : touchAction,
};
Object.keys(newCssProps).forEach((prop) => {
oldCssProps[prop] = element.style[prop];
});
// Old style props like user-select can be corrupted if you change the style directly in the logic above.
Object.keys(newCssProps).forEach((prop) => {
element.style[prop] = newCssProps[prop];
});
}
return oldCssProps;
};
export const revertCssProps = (
element: HTMLElement,
originalCssProps: { [key: string]: string }
): { [key: string]: string } => {
if (element && element.style && originalCssProps) {
Object.keys(originalCssProps).forEach((prop) => {
element.style[prop] = originalCssProps[prop];
});
}
return;
};
|