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95 lines
2.8 KiB
95 lines
2.8 KiB
var weechat = angular.module('weechat');
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weechat.factory('utils', function() {
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// Helper to change style of a class
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var changeClassStyle = function(classSelector, attr, value) {
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_.each(document.getElementsByClassName(classSelector), function(e) {
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e.style[attr] = value;
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});
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};
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// Helper to get style from a class
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var getClassStyle = function(classSelector, attr) {
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_.each(document.getElementsByClassName(classSelector), function(e) {
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return e.style[attr];
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});
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};
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var isMobileUi = function() {
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// TODO don't base detection solely on screen width
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// You are right. In the meantime I am renaming isMobileDevice to isMobileUi
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var mobile_cutoff = 968;
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return (document.body.clientWidth < mobile_cutoff);
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};
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var isCordova = function() {
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return window.cordova !== undefined;
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};
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// Inject a javascript (used by KaTeX)
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var inject_script = function(script_url) {
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var script = document.createElement("script");
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script.type = "text/javascript";
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script.src = script_url;
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var head = document.getElementsByTagName("head")[0];
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head.appendChild(script);
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};
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// Inject a stylesheet (used by KaTeX and theme switching)
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var inject_css = function(css_url, id) {
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var elem = document.createElement("link");
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elem.rel = "stylesheet";
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elem.href = css_url;
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if (id)
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elem.id = id;
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var head = document.getElementsByTagName("head")[0];
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head.appendChild(elem);
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};
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// Convert string to ByteArray
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function hexStringToByte(str) {
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if (!str) {
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return new Uint8Array();
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}
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var a = [];
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for (var i = 0, len = str.length; i < len; i+=2) {
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a.push(parseInt(str.substr(i,2),16));
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}
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return new Uint8Array(a);
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}
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function bytetoHexString(buffer) {
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return Array
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.from (new Uint8Array (buffer))
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.map (b => b.toString (16).padStart (2, "0"))
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.join ("");
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}
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function stringToUTF8Array(string) {
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const encoder = new TextEncoder()
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const view = encoder.encode(string)
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return view;
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}
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function concatenateTypedArray(a, b) { // a, b TypedArray of same type
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var c = new (a.constructor)(a.length + b.length);
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c.set(a, 0);
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c.set(b, a.length);
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return c;
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}
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return {
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changeClassStyle: changeClassStyle,
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getClassStyle: getClassStyle,
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isMobileUi: isMobileUi,
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isCordova: isCordova,
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inject_script: inject_script,
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inject_css: inject_css,
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hexStringToByte: hexStringToByte,
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bytetoHexString: bytetoHexString,
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stringToUTF8Array: stringToUTF8Array,
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concatenateTypedArray: concatenateTypedArray
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};
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});
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