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docStyle = window.document.documentElement.style;\ntype ELType = HTMLElement | SVGElement;\nexport function getContainer(domId: string | HTMLDivElement) {\n let $dom = domId as HTMLDivElement;\n if (typeof domId === 'string') {\n $dom = document.getElementById(domId) as HTMLDivElement;\n }\n return $dom;\n}\n\nexport function trim(str: string) {\n return str.trim ? str.trim() : str.replace(/^\\s+|\\s+$/g, '');\n}\n\n// @function splitWords(str: String): String[]\n// Trims and splits the string on whitespace and returns the array of parts.\nexport function splitWords(str: string) {\n return trim(str).split(/\\s+/);\n}\n\nfunction testProp(props: string[]): string {\n if (!docStyle) {\n return props[0];\n }\n for (const i in props) {\n if (props[i] && props[i] in docStyle) {\n return props[i];\n }\n }\n\n return props[0];\n}\nexport function create(\n tagName: string,\n className?: string,\n container?: HTMLElement,\n) {\n const el = document.createElement(tagName);\n el.className = className || '';\n\n if (container) {\n container.appendChild(el);\n }\n return el;\n}\n// @function remove(el: HTMLElement)\n// Removes `el` from its parent element\nexport function remove(el: ELType) {\n const parent = el.parentNode;\n if (parent) {\n parent.removeChild(el);\n }\n}\n\n// @function addClass(el: HTMLElement, name: String)\n// Adds `name` to the element's class attribute.\nexport function addClass(el: ELType, name: string) {\n if (el.classList !== undefined) {\n const classes = splitWords(name);\n for (let i = 0, len = classes.length; i < len; i++) {\n el.classList.add(classes[i]);\n }\n } else if (!hasClass(el, name)) {\n const className = getClass(el);\n setClass(el, (className ? className + ' ' : '') + name);\n }\n}\n\n// @function removeClass(el: HTMLElement, name: String)\n// Removes `name` from the element's class attribute.\nexport function removeClass(el: ELType, name: string) {\n if (el.classList !== undefined) {\n el.classList.remove(name);\n } else {\n setClass(\n el,\n trim((' ' + getClass(el) + ' ').replace(' ' + name + ' ', ' ')),\n );\n }\n}\n\n// @function hasClass(el: HTMLElement, name: String): Boolean\n// Returns `true` if the element's class attribute contains `name`.\nexport function hasClass(el: ELType, name: string) {\n if (el.classList !== undefined) {\n return el.classList.contains(name);\n }\n const className = getClass(el);\n return (\n className.length > 0 &&\n new RegExp('(^|\\\\s)' + name + '(\\\\s|$)').test(className)\n );\n}\n\n// @function setClass(el: HTMLElement, name: String)\n// Sets the element's class.\nexport function setClass(el: ELType, name: string) {\n if (el instanceof HTMLElement) {\n el.className = name;\n } else {\n // in case of SVG element\n el.className.baseVal = name;\n }\n}\n\n// @function getClass(el: HTMLElement): String\n// Returns the element's class.\nexport function getClass(el: ELType) {\n // Check if the element is an SVGElementInstance and use the correspondingElement instead\n // (Required for linked SVG elements in IE11.)\n if (el instanceof SVGElement) {\n el = el.correspondingElement;\n }\n return el.className.baseVal === undefined\n ? el.className\n : el.className.baseVal;\n}\n\nexport function empty(el: ELType) {\n while (el && el.firstChild) {\n el.removeChild(el.firstChild);\n }\n}\n\nconst transformProp = testProp(['transform', 'WebkitTransform']);\n\nexport function setTransform(el: ELType, value: string) {\n // @ts-ignore\n el.style[transformProp] = value;\n}\n\nexport function triggerResize() {\n if (typeof Event === 'function') {\n // modern browsers\n window.dispatchEvent(new Event('resize'));\n } else {\n // for IE and other old browsers\n // causes deprecation warning on modern browsers\n const evt = window.document.createEvent('UIEvents');\n // @ts-ignore\n evt.initUIEvent('resize', true, false, window, 0);\n window.dispatchEvent(evt);\n }\n}\n\nexport function printCanvas(canvas: HTMLCanvasElement) {\n const css = [\n 'padding: ' + (canvas.height / 2 - 8) + 'px ' + canvas.width / 2 + 'px;',\n 'line-height: ' + canvas.height + 'px;',\n 'background-image: url(' + canvas.toDataURL() + ');',\n ];\n // tslint:disable-next-line:no-console\n console.log('%c\\n', css.join(''));\n}\n"],"file":"dom.js"} |