http://www.boom.ge/js/geokbd.js

1(function() {
2	
3	/**
4	 * GeoKBD 0.3 - Georgian keyboard and text convertation library
5	 *
6	 * Copyright (c) 2007 Ioseb Dzmanashvili (http://www.code.ge)
7	 * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
8	 */
9	
10	String.prototype.pasteTo = function(field) {
11		field.focus();
12		if (document.selection) {
13			var selection = document.selection;
14			var range = selection.createRange();
15
16			if (range) {
17				range.text = this;
18			}
19			range.collapse(false);
20			range.select();
21		} else if (field.selectionStart || field.selectionEnd) {
22			var scrollTop = field.scrollTop, start = field.selectionStart, end = field.selectionEnd;
23			var value = field.value.substring(0, start) + this + field.value.substring(end, field.value.length);
24			field.value = value;
25			field.scrollTop = scrollTop;
26			field.selectionStart = field.selectionEnd = start + this.length;
27		} else {
28			field.value += this;
29			field.selectionStart = field.selectionEnd = field.value.length;
30		}
31	}, 
32	
33	String.prototype.translateToKA = function() {
34		
35		/**
36		 * Original idea by Irakli Nadareishvili
37		 * http://www.sapikhvno.org/viewtopic.php?t=47&postdays=0&postorder=asc&start=10
38		 */
39		var index, chr, text = [], symbols = "abgdevzTiklmnopJrstufqRySCcZwWxjh";
40		
41		for (var i = 0; i < this.length; i++) {
42			chr = this.substr(i, 1);
43			if ((index = symbols.indexOf(chr)) >= 0) {
44				text.push(String.fromCharCode(index + 4304));
45			} else {
46				text.push(chr);
47			}
48		}
49		return text.join('');	
50	},
51	
52	GeoKBD = {
53		
54		browser: {
55			isOpera: navigator.userAgent.toLowerCase().indexOf('opera') > -1,
56			isIe: navigator.userAgent.toLowerCase().indexOf('msie') > -1,
57			isIe6: navigator.userAgent.toLowerCase().indexOf('msie 6') > -1,
58			isIe7: navigator.userAgent.toLowerCase().indexOf('msie 7') > -1
59		},
60		
61		event: {
62			
63			get: function(e) {
64				return e || window.event;
65			},
66			
67			getKeyCode: function(e) {
68				e = this.get(e);
69				return e.keyCode || e.which;
70			},
71			
72			targetIs: function(e, tagName) {
73				e = this.get(e);
74				var t = e.target || e.srcElement;
75				return t.tagName.toLowerCase() == tagName ? t : null;
76			},
77			
78			attach: function(obj, eventName, fnc, capture) {
79				if (obj.addEventListener) {
80					obj.addEventListener(eventName, fnc, capture);
81				} else if (obj.attachEvent) {
82					return obj.attachEvent('on' + eventName, fnc);
83				} else {
84					obj['on' + eventName] = fnc;
85				}	
86			},
87			
88			detach: function(obj, eventName, fnc, capture) {
89				if (obj.removeEventListener) {
90					obj.removeEventListener(eventName, fnc, capture);
91				} else if (obj.detachEvent) {
92					obj.detachEvent('on' + eventName, fnc);
93				} else {
94					obj['on' + eventName] = null;
95				}
96			},
97			
98			cancel: function(e) {
99				e = this.get(e);
100				if (e.stopPropagation) {
101					e.stopPropagation();
102					e.preventDefault();
103				} else {
104					e.cancelBubble = true;
105					e.returnValue = false;
106				}
107			}
108			
109		},
110		
111		map: function(form, fieldName, switcher) {
112			
113			var self = this;
114			
115			form = (typeof form == 'string') ? document.forms[form] : form;
116						
117			if (!form.fields || form.fields == undefined) form.fields = {};
118			if (form.ka == undefined) form.ka = form[switcher] ? form[switcher].checked : true;
119			
120			if (fieldName) {
121				if (typeof fieldName == 'string') fieldName = [fieldName];
122				for (var i = 0; i < fieldName.length; i++) {
123					if (form[fieldName[i]] && !form.fields[fieldName[i]]) form.fields[fieldName[i]] = fieldName[i];
124				}
125			} else {
126				var name, type;
127				for (var i = 0; i < form.elements.length; i++) {
128					if (form.elements[i].type) {
129						name = form.elements[i].name; type = form.elements[i].type.toLowerCase();
130						if (type == 'text' || type == 'textarea') {
131							form.fields[name] = name;
132						}
133					}
134				}
135			}
136			
137			switcher = switcher || 'geo';
138			form.switcher = switcher;
139			
140			form.onkeypress = function(e) {
141				
142				e = self.event.get(e);
143				if (e.altKey || e.ctrlKey) return;
144				
145				var target, _switcher = switcher, keyCode = self.event.getKeyCode(e);
146				
147				if (keyCode == 96) {
148					if (this[_switcher]) {
149						this.ka = this[_switcher].checked = !this[_switcher].checked;
150					} else {
151						this.ka = !this.ka;	
152					}
153					
154					//by Elrian
155					SaveGeo();
156					try{
157					   setKbVal();
158					}
159					catch(e){
160					}
161					//---
162					return false;
163				} else if (this[_switcher]) {
164					this.ka = this[_switcher].checked;
165				}
166				
167				if (!this.ka) return;
168				
169				if ((target = (self.event.targetIs(e, 'textarea') || self.event.targetIs(e, 'input')))) {
170					if (!this.fields[target.name]) return;
171					text = String.fromCharCode(keyCode);
172					kaText = text.translateToKA();
173					if (kaText != text) {
174						kaText.pasteTo(target);
175						return false;
176					}
177				}
178			}
179			
180			form = null;
181			
182		},
183		
184		mapIFrame: function(iframe) {
185			
186			var __keypress = function(e) {
187				
188				var doc = (e.target || e.srcElement).ownerDocument;
189				if (doc.ka == undefined) doc.ka = true;
190				var keyCode = GeoKBD.event.getKeyCode(e);
191				var text = String.fromCharCode(keyCode);
192				var form, switcher;
193				if (parent.document.forms[doc.parentForm]) {
194					form = parent.document.forms[doc.parentForm];
195					if (form.switcher && form[form.switcher]) {
196						switcher = form[form.switcher];
197					}
198				}
199				
200				if (keyCode == 96) {
201					doc.ka = !doc.ka;					
202					if (switcher) switcher.checked = doc.ka;
203					GeoKBD.event.cancel(e);
204				} else if (switcher) {
205					doc.ka = switcher.checked;
206				}
207				
208				form = switcher = null;
209				
210				if (doc.ka) {				
211					var kaText = text.translateToKA();
212					if (kaText != text) {
213						if (!GeoKBD.browser.isIe) {
214							doc.execCommand('InsertHTML', false, kaText);
215						} else {
216							var range = doc.selection.createRange();
217							range.pasteHTML(kaText);
218						}
219						GeoKBD.event.cancel(e);
220					}
221				}
222				
223			}
224			
225			var __focus = function(e) {			
226				if (!GeoKBD.browser.isIe) {
227					GeoKBD.event.attach(this.document, 'keypress', __keypress, true);
228					GeoKBD.event.detach(this, 'focus', __focus, true);
229				} else {
230					GeoKBD.event.attach(this.contentWindow.document, 'keypress', __keypress, true);
231					this.onfocus = null;
232				}
233			};
234			
235			var interval = window.setInterval(function() {
236				var el = typeof iframe=='string' ? document.getElementById(iframe) : iframe();
237				if (el) {
238					for (var p = el.parentNode; p && p != document.body; p = p.parentNode) {
239						if (/form/i.test(p.tagName)) {
240							if (el.contentWindow.document) {
241								el.contentWindow.document.parentForm = p.name || p.id;
242							} else {
243								el.document.parentForm = p.name || p.id;
244							}
245							break;
246						}
247					}
248					if (!GeoKBD.browser.isIe) {		
249						GeoKBD.event.attach(el.contentWindow, 'focus', __focus, true);
250					} else {
251						el.onfocus = __focus;
252					}
253					el = null;
254					window.clearInterval(interval);
255				}
256			}, 100);
257			
258		}
259		
260	};
261	
262	window.GeoKBD = GeoKBD;
263
264})();