NativeScript/utils/utils-common.ts at toolbar · alvsgithub/NativeScript

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import types = require("utils/types");

export function copyFrom(source: any, target: any) {

if (types.isDefined(source) && types.isDefined(target)) {

var i: number;

var key: string;

var value: any;

var keys = Object.keys(source);

for (i = 0; i < keys.length; i++) {

key = keys[i];

value = source[key];

if (types.isDefined(value)) {

target[key] = value;

}

export module layout {

var MODE_SHIFT = 30;

var MODE_MASK = 0x3 << MODE_SHIFT;

export var UNSPECIFIED = 0 << MODE_SHIFT;

export var EXACTLY = 1 << MODE_SHIFT;

export var AT_MOST = 2 << MODE_SHIFT;

export var MEASURED_STATE_TOO_SMALL = 0x01000000;

export var MEASURED_STATE_MASK = 0xff000000;

export function getMode(mode: number): string {

switch (mode) {

case layout.EXACTLY:

return "Exact";

case layout.AT_MOST:

return "AtMost";

default:

return "Unspecified";

}

export function getMeasureSpecMode(spec: number): number {

return (spec & MODE_MASK);

}

export function getMeasureSpecSize(spec: number): number {

return (spec & ~MODE_MASK);

}