https://pelletkachelforum.nl/wp-content/plugins/asgaros-forum/libs/jquery.caret.js?ver=3.0.0

1(function (root, factory) {
2  if (typeof define === 'function' && define.amd) {
3    // AMD. Register as an anonymous module.
4    define(["jquery"], function ($) {
5      return (root.returnExportsGlobal = factory($));
6    });
7  } else if (typeof exports === 'object') {
8    // Node. Does not work with strict CommonJS, but
9    // only CommonJS-like enviroments that support module.exports,
10    // like Node.
11    module.exports = factory(require("jquery"));
12  } else {
13    factory(jQuery);
14  }
15}(this, function ($) {
16
17/*
18  Implement Github like autocomplete mentions
19  http://ichord.github.com/At.js
20
21  Copyright (c) 2013 [email protected]
22  Licensed under the MIT license.
23*/
24
25/*
26本插件操作 textarea 或者 input 内的插入符
27只实现了获得插入符在文本框中的位置，我设置
28插入符的位置.
29*/
30
31"use strict";
32var EditableCaret, InputCaret, Mirror, Utils, discoveryIframeOf, methods, oDocument, oFrame, oWindow, pluginName, setContextBy;
33
34pluginName = 'caret';
35
36EditableCaret = (function() {
37  function EditableCaret($inputor) {
38    this.$inputor = $inputor;
39    this.domInputor = this.$inputor[0];
40  }
41
42  EditableCaret.prototype.setPos = function(pos) {
43    var fn, found, offset, sel;
44    if (sel = oWindow.getSelection()) {
45      offset = 0;
46      found = false;
47      (fn = function(pos, parent) {
48        var node, range, _i, _len, _ref, _results;
49        _ref = parent.childNodes;
50        _results = [];
51        for (_i = 0, _len = _ref.length; _i < _len; _i++) {
52          node = _ref[_i];
53          if (found) {
54            break;
55          }
56          if (node.nodeType === 3) {
57            if (offset + node.length >= pos) {
58              found = true;
59              range = oDocument.createRange();
60              range.setStart(node, pos - offset);
61              sel.removeAllRanges();
62              sel.addRange(range);
63              break;
64            } else {
65              _results.push(offset += node.length);
66            }
67          } else {
68            _results.push(fn(pos, node));
69          }
70        }
71        return _results;
72      })(pos, this.domInputor);
73    }
74    return this.domInputor;
75  };
76
77  EditableCaret.prototype.getIEPosition = function() {
78    return this.getPosition();
79  };
80
81  EditableCaret.prototype.getPosition = function() {
82    var inputor_offset, offset;
83    offset = this.getOffset();
84    inputor_offset = this.$inputor.offset();
85    offset.left -= inputor_offset.left;
86    offset.top -= inputor_offset.top;
87    return offset;
88  };
89
90  EditableCaret.prototype.getOldIEPos = function() {
91    var preCaretTextRange, textRange;
92    textRange = oDocument.selection.createRange();
93    preCaretTextRange = oDocument.body.createTextRange();
94    preCaretTextRange.moveToElementText(this.domInputor);
95    preCaretTextRange.setEndPoint("EndToEnd", textRange);

96    return preCaretTextRange.text.length;
97  };
98
99  EditableCaret.prototype.getPos = function() {
100    var clonedRange, pos, range;
101    if (range = this.range()) {
102      clonedRange = range.cloneRange();
103      clonedRange.selectNodeContents(this.domInputor);
104      clonedRange.setEnd(range.endContainer, range.endOffset);
105      pos = clonedRange.toString().length;
106      clonedRange.detach();
107      return pos;
108    } else if (oDocument.selection) {
109      return this.getOldIEPos();
110    }
111  };
112
113  EditableCaret.prototype.getOldIEOffset = function() {
114    var range, rect;
115    range = oDocument.selection.createRange().duplicate();
116    range.moveStart("character", -1);
117    rect = range.getBoundingClientRect();
118    return {
119      height: rect.bottom - rect.top,
120      left: rect.left,
121      top: rect.top
122    };
123  };
124
125  EditableCaret.prototype.getOffset = function(pos) {
126    var clonedRange, offset, range, rect, shadowCaret;
127    if (oWindow.getSelection && (range = this.range())) {
128      if (range.endOffset - 1 > 0 && range.endContainer !== this.domInputor) {
129        clonedRange = range.cloneRange();
130        clonedRange.setStart(range.endContainer, range.endOffset - 1);
131        clonedRange.setEnd(range.endContainer, range.endOffset);
132        rect = clonedRange.getBoundingClientRect();
133        offset = {
134          height: rect.height,
135          left: rect.left + rect.width,
136          top: rect.top
137        };
138        clonedRange.detach();
139      }
140      if (!offset || (offset != null ? offset.height : void 0) === 0) {
141        clonedRange = range.cloneRange();
142        shadowCaret = $(oDocument.createTextNode("|"));
143        clonedRange.insertNode(shadowCaret[0]);
144        clonedRange.selectNode(shadowCaret[0]);
145        rect = clonedRange.getBoundingClientRect();
146        offset = {
147          height: rect.height,
148          left: rect.left,
149          top: rect.top
150        };
151        shadowCaret.remove();
152        clonedRange.detach();
153      }
154    } else if (oDocument.selection) {
155      offset = this.getOldIEOffset();
156    }
157    if (offset) {
158      offset.top += $(oWindow).scrollTop();
159      offset.left += $(oWindow).scrollLeft();
160    }
161    return offset;
162  };
163
164  EditableCaret.prototype.range = function() {
165    var sel;
166    if (!oWindow.getSelection) {
167      return;
168    }
169    sel = oWindow.getSelection();
170    if (sel.rangeCount > 0) {
171      return sel.getRangeAt(0);
172    } else {
173      return null;
174    }
175  };
176
177  return EditableCaret;
178
179})();
180
181InputCaret = (function() {
182  function InputCaret($inputor) {
183    this.$inputor = $inputor;
184    this.domInputor = this.$inputor[0];
185  }
186
187  InputCaret.prototype.getIEPos = function() {
188    var endRange, inputor, len, normalizedValue, pos, range, textInputRange;
189    inputor = this.domInputor;
190    range = oDocument.selection.createRange();
191    pos = 0;
192    if (range && range.parentElement() === inputor) {
193      normalizedValue = inputor.value.replace(/\r\n/g, "\n");
194      len = normalizedValue.length;
195      textInputRange = inputor.createTextRange();
196      textInputRange.moveToBookmark(range.getBookmark());
197      endRange = inputor.createTextRange();
198      endRange.collapse(false);
199      if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
200        pos = len;
201      } else {
202        pos = -textInputRange.moveStart("character", -len);
203      }
204    }
205    return pos;
206  };
207
208  InputCaret.prototype.getPos = function() {
209    if (oDocument.selection) {
210      return this.getIEPos();
211    } else {
212      return this.domInputor.selectionStart;
213    }
214  };
215
216  InputCaret.prototype.setPos = function(pos) {
217    var inputor, range;
218    inputor = this.domInputor;
219    if (oDocument.selection) {
220      range = inputor.createTextRange();
221      range.move("character", pos);
222      range.select();
223    } else if (inputor.setSelectionRange) {
224      inputor.setSelectionRange(pos, pos);
225    }
226    return inputor;
227  };
228
229  InputCaret.prototype.getIEOffset = function(pos) {
230    var h, textRange, x, y;
231    textRange = this.domInputor.createTextRange();
232    pos || (pos = this.getPos());
233    textRange.move('character', pos);
234    x = textRange.boundingLeft;
235    y = textRange.boundingTop;
236    h = textRange.boundingHeight;
237    return {
238      left: x,
239      top: y,
240      height: h
241    };
242  };
243
244  InputCaret.prototype.getOffset = function(pos) {
245    var $inputor, offset, position;
246    $inputor = this.$inputor;
247    if (oDocument.selection) {
248      offset = this.getIEOffset(pos);
249      offset.top += $(oWindow).scrollTop() + $inputor.scrollTop();
250      offset.left += $(oWindow).scrollLeft() + $inputor.scrollLeft();
251      return offset;
252    } else {
253      offset = $inputor.offset();
254      position = this.getPosition(pos);
255      return offset = {
256        left: offset.left + position.left - $inputor.scrollLeft(),
257        top: offset.top + position.top - $inputor.scrollTop(),
258        height: position.height
259      };
260    }
261  };
262
263  InputCaret.prototype.getPosition = function(pos) {
264    var $inputor, at_rect, end_range, format, html, mirror, start_range;
265    $inputor = this.$inputor;
266    format = function(value) {
267      value = value.replace(/<|>|`|"|&/g, '?').replace(/\r\n|\r|\n/g, "<br/>");
268      if (/firefox/i.test(navigator.userAgent)) {
269        value = value.replace(/\s/g, '&nbsp;');
270      }
271      return value;
272    };
273    if (pos === void 0) {
274      pos = this.getPos();
275    }
276    start_range = $inputor.val().slice(0, pos);
277    end_range = $inputor.val().slice(pos);
278    html = "<span style='position: relative; display: inline;'>" + format(start_range) + "</span>";
279    html += "<span id='caret' style='position: relative; display: inline;'>|</span>";
280    html += "<span style='position: relative; display: inline;'>" + format(end_range) + "</span>";
281    mirror = new Mirror($inputor);
282    return at_rect = mirror.create(html).rect();
283  };
284
285  InputCaret.prototype.getIEPosition = function(pos) {
286    var h, inputorOffset, offset, x, y;
287    offset = this.getIEOffset(pos);
288    inputorOffset = this.$inputor.offset();
289    x = offset.left - inputorOffset.left;
290    y = offset.top - inputorOffset.top;
291    h = offset.height;
292    return {
293      left: x,
294      top: y,
295      height: h
296    };
297  };
298
299  return InputCaret;
300
301})();
302
303Mirror = (function() {
304  Mirror.prototype.css_attr = ["borderBottomWidth", "borderLeftWidth", "borderRightWidth", "borderTopStyle", "borderRightStyle", "borderBottomStyle", "borderLeftStyle", "borderTopWidth", "boxSizing", "fontFamily", "fontSize", "fontWeight", "height", "letterSpacing", "lineHeight", "marginBottom", "marginLeft", "marginRight", "marginTop", "outlineWidth", "overflow", "overflowX", "overflowY", "paddingBottom", "paddingLeft", "paddingRight", "paddingTop", "textAlign", "textOverflow", "textTransform", "whiteSpace", "wordBreak", "wordWrap"];
305
306  function Mirror($inputor) {
307    this.$inputor = $inputor;
308  }
309
310  Mirror.prototype.mirrorCss = function() {
311    var css,
312      _this = this;
313    css = {
314      position: 'absolute',
315      left: -9999,
316      top: 0,
317      zIndex: -20000
318    };
319    if (this.$inputor.prop('tagName') === 'TEXTAREA') {
320      this.css_attr.push('width');
321    }
322    $.each(this.css_attr, function(i, p) {
323      return css[p] = _this.$inputor.css(p);
324    });
325    return css;
326  };
327
328  Mirror.prototype.create = function(html) {
329    this.$mirror = $('<div></div>');
330    this.$mirror.css(this.mirrorCss());
331    this.$mirror.html(html);
332    this.$inputor.after(this.$mirror);
333    return this;
334  };
335
336  Mirror.prototype.rect = function() {
337    var $flag, pos, rect;
338    $flag = this.$mirror.find("#caret");
339    pos = $flag.position();
340    rect = {
341      left: pos.left,
342      top: pos.top,
343      height: $flag.height()
344    };
345    this.$mirror.remove();
346    return rect;
347  };
348
349  return Mirror;
350
351})();
352
353Utils = {
354  contentEditable: function($inputor) {
355    return !!($inputor[0].contentEditable && $inputor[0].contentEditable === 'true');
356  }
357};
358
359methods = {
360  pos: function(pos) {
361    if (pos || pos === 0) {
362      return this.setPos(pos);
363    } else {
364      return this.getPos();
365    }
366  },
367  position: function(pos) {
368    if (oDocument.selection) {
369      return this.getIEPosition(pos);
370    } else {
371      return this.getPosition(pos);
372    }
373  },
374  offset: function(pos) {
375    var offset;
376    offset = this.getOffset(pos);
377    return offset;
378  }
379};
380
381oDocument = null;
382
383oWindow = null;
384
385oFrame = null;
386
387setContextBy = function(settings) {
388  var iframe;
389  if (iframe = settings != null ? settings.iframe : void 0) {
390    oFrame = iframe;
391    oWindow = iframe.contentWindow;
392    return oDocument = iframe.contentDocument || oWindow.document;
393  } else {
394    oFrame = void 0;
395    oWindow = window;
396    return oDocument = document;
397  }
398};
399
400discoveryIframeOf = function($dom) {
401  var error;
402  oDocument = $dom[0].ownerDocument;
403  oWindow = oDocument.defaultView || oDocument.parentWindow;
404  try {
405    return oFrame = oWindow.frameElement;
406  } catch (_error) {
407    error = _error;
408  }
409};
410
411$.fn.caret = function(method, value, settings) {
412  var caret;
413  if (methods[method]) {
414    if ($.isPlainObject(value)) {
415      setContextBy(value);
416      value = void 0;
417    } else {
418      setContextBy(settings);
419    }
420    caret = Utils.contentEditable(this) ? new EditableCaret(this) : new InputCaret(this);
421    return methods[method].apply(caret, [value]);
422  } else {
423    return $.error("Method " + method + " does not exist on jQuery.caret");
424  }
425};
426
427$.fn.caret.EditableCaret = EditableCaret;
428
429$.fn.caret.InputCaret = InputCaret;
430

431$.fn.caret.Utils = Utils;
432
433$.fn.caret.apis = methods;
434
435}));