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Diffstat (limited to 'code/api/wwwroot/scripts/helpers.js')
| -rw-r--r-- | code/api/wwwroot/scripts/helpers.js | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/code/api/wwwroot/scripts/helpers.js b/code/api/wwwroot/scripts/helpers.js new file mode 100644 index 0000000..411e55c --- /dev/null +++ b/code/api/wwwroot/scripts/helpers.js @@ -0,0 +1,224 @@ +function element_has_focus(element) { + return element === document.activeElement; +} + +function move_focus(element) { + if (!element) { + element = document.getElementsByTagName("body")[0]; + } + element.focus(); + if (!element_has_focus(element)) { + element.setAttribute("tabindex", "-1"); + element.focus(); + } +} + +function create_element_from_object(elementOptions) { + return create_element(elementOptions.name, elementOptions.properties, elementOptions.children); +} + +function create_element(name, properties, children) { + if (!name || name.length < 1) { + throw new Error("name is required"); + } + const node = document.createElement(name); + if (properties) { + for (const [key, value] of Object.entries(properties)) { + node[key] = value; + } + } + + if (children && children.length > 0) { + let actualChildren = children; + if (typeof children === "function") { + actualChildren = children(); + } + for (const child of actualChildren) { + node.appendChild(child) + } + } + return node; +} + +// https://stackoverflow.com/a/45215694/11961742 +function get_selected_options(domElement) { + const ret = []; + + if (domElement.selectedOptions !== undefined) { + for (let i = 0; i < domElement.selectedOptions.length; i++) { + ret.push(domElement.selectedOptions[i].value); + } + } else { + for (let i = 0; i < domElement.options.length; i++) { + if (domElement.options[i].selected) { + ret.push(domElement.options[i].value); + } + } + } + return ret; +} + + +function get_element_position(element) { + if (!element) return {x: 0, y: 0}; + let x = 0; + let y = 0; + while (true) { + x += element.offsetLeft; + y += element.offsetTop; + if (element.offsetParent === null) { + break; + } + element = element.offsetParent; + } + return {x, y}; +} + +function restrict_input_to_numbers(element, specials = [], mergeSpecialsWithDefaults = false) { + if (!element) return; + element.addEventListener("keydown", (e) => { + const defaultSpecials = ["Backspace", "ArrowLeft", "ArrowRight", "Tab"]; + let keys = specials.length > 0 ? specials : defaultSpecials; + if (mergeSpecialsWithDefaults && specials) { + keys = [...specials, ...defaultSpecials]; + } + if (keys.indexOf(e.key) !== -1) { + return; + } + if (isNaN(parseInt(e.key))) { + e.preventDefault(); + } + }); +} + +// A formatted version of a popular md5 implementation. +// Original copyright (c) Paul Johnston & Greg Holt. +// The function itself is now 42 lines long. +// https://stackoverflow.com/a/60467595 "Don't deny." +function get_md5_hash(inputString) { + const hc = "0123456789abcdef"; + + function rh(n) { + var j, s = ""; + for (j = 0; j <= 3; j++) s += hc.charAt((n >> (j * 8 + 4)) & 0x0F) + hc.charAt((n >> (j * 8)) & 0x0F); + return s; + } + + function ad(x, y) { + var l = (x & 0xFFFF) + (y & 0xFFFF); + var m = (x >> 16) + (y >> 16) + (l >> 16); + return (m << 16) | (l & 0xFFFF); + } + + function rl(n, c) { + return (n << c) | (n >>> (32 - c)); + } + + function cm(q, a, b, x, s, t) { + return ad(rl(ad(ad(a, q), ad(x, t)), s), b); + } + + function ff(a, b, c, d, x, s, t) { + return cm((b & c) | ((~b) & d), a, b, x, s, t); + } + + function gg(a, b, c, d, x, s, t) { + return cm((b & d) | (c & (~d)), a, b, x, s, t); + } + + function hh(a, b, c, d, x, s, t) { + return cm(b ^ c ^ d, a, b, x, s, t); + } + + function ii(a, b, c, d, x, s, t) { + return cm(c ^ (b | (~d)), a, b, x, s, t); + } + + function sb(x) { + var i; + var nblk = ((x.length + 8) >> 6) + 1; + var blks = new Array(nblk * 16); + for (i = 0; i < nblk * 16; i++) blks[i] = 0; + for (i = 0; i < x.length; i++) blks[i >> 2] |= x.charCodeAt(i) << ((i % 4) * 8); + blks[i >> 2] |= 0x80 << ((i % 4) * 8); + blks[nblk * 16 - 2] = x.length * 8; + return blks; + } + + var i, x = sb(inputString), a = 1732584193, b = -271733879, c = -1732584194, d = 271733878, olda, oldb, oldc, oldd; + for (i = 0; i < x.length; i += 16) { + olda = a; + oldb = b; + oldc = c; + oldd = d; + a = ff(a, b, c, d, x[i + 0], 7, -680876936); + d = ff(d, a, b, c, x[i + 1], 12, -389564586); + c = ff(c, d, a, b, x[i + 2], 17, 606105819); + b = ff(b, c, d, a, x[i + 3], 22, -1044525330); + a = ff(a, b, c, d, x[i + 4], 7, -176418897); + d = ff(d, a, b, c, x[i + 5], 12, 1200080426); + c = ff(c, d, a, b, x[i + 6], 17, -1473231341); + b = ff(b, c, d, a, x[i + 7], 22, -45705983); + a = ff(a, b, c, d, x[i + 8], 7, 1770035416); + d = ff(d, a, b, c, x[i + 9], 12, -1958414417); + c = ff(c, d, a, b, x[i + 10], 17, -42063); + b = ff(b, c, d, a, x[i + 11], 22, -1990404162); + a = ff(a, b, c, d, x[i + 12], 7, 1804603682); + d = ff(d, a, b, c, x[i + 13], 12, -40341101); + c = ff(c, d, a, b, x[i + 14], 17, -1502002290); + b = ff(b, c, d, a, x[i + 15], 22, 1236535329); + a = gg(a, b, c, d, x[i + 1], 5, -165796510); + d = gg(d, a, b, c, x[i + 6], 9, -1069501632); + c = gg(c, d, a, b, x[i + 11], 14, 643717713); + b = gg(b, c, d, a, x[i + 0], 20, -373897302); + a = gg(a, b, c, d, x[i + 5], 5, -701558691); + d = gg(d, a, b, c, x[i + 10], 9, 38016083); + c = gg(c, d, a, b, x[i + 15], 14, -660478335); + b = gg(b, c, d, a, x[i + 4], 20, -405537848); + a = gg(a, b, c, d, x[i + 9], 5, 568446438); + d = gg(d, a, b, c, x[i + 14], 9, -1019803690); + c = gg(c, d, a, b, x[i + 3], 14, -187363961); + b = gg(b, c, d, a, x[i + 8], 20, 1163531501); + a = gg(a, b, c, d, x[i + 13], 5, -1444681467); + d = gg(d, a, b, c, x[i + 2], 9, -51403784); + c = gg(c, d, a, b, x[i + 7], 14, 1735328473); + b = gg(b, c, d, a, x[i + 12], 20, -1926607734); + a = hh(a, b, c, d, x[i + 5], 4, -378558); + d = hh(d, a, b, c, x[i + 8], 11, -2022574463); + c = hh(c, d, a, b, x[i + 11], 16, 1839030562); + b = hh(b, c, d, a, x[i + 14], 23, -35309556); + a = hh(a, b, c, d, x[i + 1], 4, -1530992060); + d = hh(d, a, b, c, x[i + 4], 11, 1272893353); + c = hh(c, d, a, b, x[i + 7], 16, -155497632); + b = hh(b, c, d, a, x[i + 10], 23, -1094730640); + a = hh(a, b, c, d, x[i + 13], 4, 681279174); + d = hh(d, a, b, c, x[i + 0], 11, -358537222); + c = hh(c, d, a, b, x[i + 3], 16, -722521979); + b = hh(b, c, d, a, x[i + 6], 23, 76029189); + a = hh(a, b, c, d, x[i + 9], 4, -640364487); + d = hh(d, a, b, c, x[i + 12], 11, -421815835); + c = hh(c, d, a, b, x[i + 15], 16, 530742520); + b = hh(b, c, d, a, x[i + 2], 23, -995338651); + a = ii(a, b, c, d, x[i + 0], 6, -198630844); + d = ii(d, a, b, c, x[i + 7], 10, 1126891415); + c = ii(c, d, a, b, x[i + 14], 15, -1416354905); + b = ii(b, c, d, a, x[i + 5], 21, -57434055); + a = ii(a, b, c, d, x[i + 12], 6, 1700485571); + d = ii(d, a, b, c, x[i + 3], 10, -1894986606); + c = ii(c, d, a, b, x[i + 10], 15, -1051523); + b = ii(b, c, d, a, x[i + 1], 21, -2054922799); + a = ii(a, b, c, d, x[i + 8], 6, 1873313359); + d = ii(d, a, b, c, x[i + 15], 10, -30611744); + c = ii(c, d, a, b, x[i + 6], 15, -1560198380); + b = ii(b, c, d, a, x[i + 13], 21, 1309151649); + a = ii(a, b, c, d, x[i + 4], 6, -145523070); + d = ii(d, a, b, c, x[i + 11], 10, -1120210379); + c = ii(c, d, a, b, x[i + 2], 15, 718787259); + b = ii(b, c, d, a, x[i + 9], 21, -343485551); + a = ad(a, olda); + b = ad(b, oldb); + c = ad(c, oldc); + d = ad(d, oldd); + } + return rh(a) + rh(b) + rh(c) + rh(d); +}
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