ionic-angular
Version:
A powerful framework for building mobile and progressive web apps with JavaScript and Angular
322 lines • 8.26 kB
JavaScript
/**
* @hidden
* Given a min and max, restrict the given number
* to the range.
* @param {?} min the minimum
* @param {?} n the value
* @param {?} max the maximum
* @return {?}
*/
export function clamp(min, n, max) {
return Math.max(min, Math.min(n, max));
}
/**
* @hidden
* @param {?} obj
* @return {?}
*/
export function deepCopy(obj) {
return JSON.parse(JSON.stringify(obj));
}
/**
* @hidden
* @param {?} a
* @param {?} b
* @return {?}
*/
export function deepEqual(a, b) {
if (a === b) {
return true;
}
return JSON.stringify(a) === JSON.stringify(b);
}
/**
* @hidden
* @param {?} fn
* @param {?} wait
* @param {?=} immediate
* @return {?}
*/
export function debounce(fn, wait, immediate) {
if (immediate === void 0) { immediate = false; }
var /** @type {?} */ timeout, /** @type {?} */ args, /** @type {?} */ context, /** @type {?} */ timestamp, /** @type {?} */ result;
return function () {
context = this;
args = arguments;
timestamp = Date.now();
var /** @type {?} */ later = function () {
var /** @type {?} */ last = Date.now() - timestamp;
if (last < wait) {
timeout = setTimeout(later, wait - last);
}
else {
timeout = null;
if (!immediate)
result = fn.apply(context, args);
}
};
var /** @type {?} */ callNow = immediate && !timeout;
if (!timeout) {
timeout = setTimeout(later, wait);
}
if (callNow)
result = fn.apply(context, args);
return result;
};
}
/**
* @hidden
* Rewrites an absolute URL so it works across file and http based engines
* @param {?} url
* @return {?}
*/
export function normalizeURL(url) {
var /** @type {?} */ ionic = ((window))['Ionic'];
if (ionic && ionic.normalizeURL) {
return ionic.normalizeURL(url);
}
return url;
}
/**
* @hidden
* Apply default arguments if they don't exist in
* the first object.
* @param {?} dest
* @param {...?} args
* @return {?}
*/
export function defaults(dest) {
var args = [];
for (var _i = 1; _i < arguments.length; _i++) {
args[_i - 1] = arguments[_i];
}
for (var /** @type {?} */ i = arguments.length - 1; i >= 1; i--) {
var /** @type {?} */ source = arguments[i];
if (source) {
for (var /** @type {?} */ key in source) {
if (source.hasOwnProperty(key) && !dest.hasOwnProperty(key)) {
dest[key] = source[key];
}
}
}
}
return dest;
}
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isBoolean(val) { return typeof val === 'boolean'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isString(val) { return typeof val === 'string'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isNumber(val) { return typeof val === 'number'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isFunction(val) { return typeof val === 'function'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isDefined(val) { return typeof val !== 'undefined'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isUndefined(val) { return typeof val === 'undefined'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isPresent(val) { return val !== undefined && val !== null; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isBlank(val) { return val === undefined || val === null; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isObject(val) { return typeof val === 'object'; }
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isArray(val) { return Array.isArray(val); }
;
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isPrimitive(val) {
return isString(val) || isBoolean(val) || (isNumber(val) && !isNaN(val));
}
;
/**
* @hidden
* @param {?} val
* @return {?}
*/
export function isTrueProperty(val) {
if (typeof val === 'string') {
val = val.toLowerCase().trim();
return (val === 'true' || val === 'on' || val === '');
}
return !!val;
}
;
/**
* @hidden
* @param {?} a
* @param {?} b
* @return {?}
*/
export function isCheckedProperty(a, b) {
if (a === undefined || a === null || a === '') {
return (b === undefined || b === null || b === '');
}
else if (a === true || a === 'true') {
return (b === true || b === 'true');
}
else if (a === false || a === 'false') {
return (b === false || b === 'false');
}
else if (a === 0 || a === '0') {
return (b === 0 || b === '0');
}
// not using strict comparison on purpose
return (a == b); // tslint:disable-line
}
;
/**
* @hidden
* Given a side, return if it should be on the right
* based on the value of dir
* @param {?} side the side
* @param {?} isRTL whether the application dir is rtl
* @param {?=} defaultRight whether the default side is right
* @return {?}
*/
export function isRightSide(side, isRTL, defaultRight) {
if (defaultRight === void 0) { defaultRight = false; }
switch (side) {
case 'right': return true;
case 'left': return false;
case 'end': return !isRTL;
case 'start': return isRTL;
default: return defaultRight ? !isRTL : isRTL;
}
}
/**
* @hidden
* @param {?} array
* @param {?} indexes
* @return {?}
*/
export function reorderArray(array, indexes) {
var /** @type {?} */ element = array[indexes.from];
array.splice(indexes.from, 1);
array.splice(indexes.to, 0, element);
return array;
}
/**
* @hidden
* @param {?} array
* @param {?} item
* @return {?}
*/
export function removeArrayItem(array, item) {
var /** @type {?} */ index = array.indexOf(item);
return !!~index && !!array.splice(index, 1);
}
/**
* @hidden
* @param {?} isResetDirection
* @param {?} isMovingFast
* @param {?} isOnResetZone
* @return {?}
*/
export function swipeShouldReset(isResetDirection, isMovingFast, isOnResetZone) {
// The logic required to know when the sliding item should close (openAmount=0)
// depends on three booleans (isCloseDirection, isMovingFast, isOnCloseZone)
// and it ended up being too complicated to be written manually without errors
// so the truth table is attached below: (0=false, 1=true)
// isCloseDirection | isMovingFast | isOnCloseZone || shouldClose
// 0 | 0 | 0 || 0
// 0 | 0 | 1 || 1
// 0 | 1 | 0 || 0
// 0 | 1 | 1 || 0
// 1 | 0 | 0 || 0
// 1 | 0 | 1 || 1
// 1 | 1 | 0 || 1
// 1 | 1 | 1 || 1
// The resulting expression was generated by resolving the K-map (Karnaugh map):
var /** @type {?} */ shouldClose = (!isMovingFast && isOnResetZone) || (isResetDirection && isMovingFast);
return shouldClose;
}
/**
* @hidden
*/
var ASSERT_ENABLED = true;
/**
* @hidden
* @param {?} fn
* @return {?}
*/
function _runInDev(fn) {
if (ASSERT_ENABLED === true) {
return fn();
}
}
/**
* @hidden
* @param {?} actual
* @param {?} reason
* @return {?}
*/
function _assert(actual, reason) {
if (!actual && ASSERT_ENABLED === true) {
var /** @type {?} */ message = 'IONIC ASSERT: ' + reason;
console.error(message);
debugger; // tslint:disable-line
throw new Error(message);
}
}
/**
* @hidden
* @param {?} functionToLazy
* @return {?}
*/
export function requestIonicCallback(functionToLazy) {
if ('requestIdleCallback' in window) {
return ((window)).requestIdleCallback(functionToLazy);
}
else {
return setTimeout(functionToLazy, 500);
}
}
/** @hidden */
export { _assert as assert };
/** @hidden */
export { _runInDev as runInDev };
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