File modules/editor/codemirror/src/util/feature_detection.min.js
Last commit: Tue May 22 22:39:54 2018 +0200 Jan Dankert Fix für PHP 7.2: 'Object' darf nun nicht mehr als Klassennamen verwendet werden. AUCH NICHT IN EINEM NAMESPACE! WTF, wozu habe ich das in einen verfickten Namespace gepackt? Wozu soll der sonst da sein??? Amateure. Daher nun notgedrungen unbenannt in 'BaseObject'.
1 import { elt, range, removeChildren, removeChildrenAndAdd } from "./dom.js" 2 import { ie, ie_version } from "./browser.js" 3 4 // Detect drag-and-drop 5 export let dragAndDrop = function() { 6 // There is *some* kind of drag-and-drop support in IE6-8, but I 7 // couldn't get it to work yet. 8 if (ie && ie_version < 9) return false 9 let div = elt('div') 10 return "draggable" in div || "dragDrop" in div 11 }() 12 13 let zwspSupported 14 export function zeroWidthElement(measure) { 15 if (zwspSupported == null) { 16 let test = elt("span", "\u200b") 17 removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])) 18 if (measure.firstChild.offsetHeight != 0) 19 zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) 20 } 21 let node = zwspSupported ? elt("span", "\u200b") : 22 elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px") 23 node.setAttribute("cm-text", "") 24 return node 25 } 26 27 // Feature-detect IE's crummy client rect reporting for bidi text 28 let badBidiRects 29 export function hasBadBidiRects(measure) { 30 if (badBidiRects != null) return badBidiRects 31 let txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")) 32 let r0 = range(txt, 0, 1).getBoundingClientRect() 33 let r1 = range(txt, 1, 2).getBoundingClientRect() 34 removeChildren(measure) 35 if (!r0 || r0.left == r0.right) return false // Safari returns null in some cases (#2780) 36 return badBidiRects = (r1.right - r0.right < 3) 37 } 38 39 // See if "".split is the broken IE version, if so, provide an 40 // alternative way to split lines. 41 export let splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? string => { 42 let pos = 0, result = [], l = string.length 43 while (pos <= l) { 44 let nl = string.indexOf("\n", pos) 45 if (nl == -1) nl = string.length 46 let line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl) 47 let rt = line.indexOf("\r") 48 if (rt != -1) { 49 result.push(line.slice(0, rt)) 50 pos += rt + 1 51 } else { 52 result.push(line) 53 pos = nl + 1 54 } 55 } 56 return result 57 } : string => string.split(/\r\n?|\n/) 58 59 export let hasSelection = window.getSelection ? te => { 60 try { return te.selectionStart != te.selectionEnd } 61 catch(e) { return false } 62 } : te => { 63 let range 64 try {range = te.ownerDocument.selection.createRange()} 65 catch(e) {} 66 if (!range || range.parentElement() != te) return false 67 return range.compareEndPoints("StartToEnd", range) != 0 68 } 69 70 export let hasCopyEvent = (() => { 71 let e = elt("div") 72 if ("oncopy" in e) return true 73 e.setAttribute("oncopy", "return;") 74 return typeof e.oncopy == "function" 75 })() 76 77 let badZoomedRects = null 78 export function hasBadZoomedRects(measure) { 79 if (badZoomedRects != null) return badZoomedRects 80 let node = removeChildrenAndAdd(measure, elt("span", "x")) 81 let normal = node.getBoundingClientRect() 82 let fromRange = range(node, 0, 1).getBoundingClientRect() 83 return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 84 }
Downloadmodules/editor/codemirror/src/util/feature_detection.min.js
History Tue, 22 May 2018 22:39:54 +0200 Jan Dankert Fix für PHP 7.2: 'Object' darf nun nicht mehr als Klassennamen verwendet werden. AUCH NICHT IN EINEM NAMESPACE! WTF, wozu habe ich das in einen verfickten Namespace gepackt? Wozu soll der sonst da sein??? Amateure. Daher nun notgedrungen unbenannt in 'BaseObject'.