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twister-calm/js/jquery.a-tools-1.4.1.js

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/*!
* a-tools 1.4.1
*
* Copyright (c) 2009 Andrey Kramarev(andrey.kramarev[at]ampparit.com), Ampparit Inc. (www.ampparit.com)
* Licensed under the MIT license.
* http://www.ampparit.fi/a-tools/license.txt
*
* Basic usage:
<textarea></textarea>
<input type="text" />
// Get current selection
var sel = $("textarea").getSelection()
// Replace current selection
$("input").replaceSelection("foo");
// Count characters
alert($("textarea").countCharacters());
// Set max length without callback function
$("textarea").setMaxLength(7);
// Set max length with callback function which will be called when limit is exceeded
$("textarea").setMaxLength(10, function() {
alert("hello")
});
// Removing limit:
$("textarea").setMaxLength(-1);
// Insert text at current caret position
$("#textarea").insertAtCaretPos("hello");
// Set caret position (1 = beginning, -1 = end)
$("#textArea").setCaretPos(10);
// Set Selection
$("#textArea").setSelection(10,15);
*/
var caretPositionAmp;
jQuery.fn.extend({
getSelection: function() { // function for getting selection, and position of the selected text
var input = this.jquery ? this[0] : this;
var start;
var end;
var part;
var number = 0;
input.onmousedown = function() { // for IE because it loses caret position when focus changed
if (document.selection && typeof(input.selectionStart) != "number") {
document.selection.empty();
} else {
window.getSelection().removeAllRanges();
}
}
if (document.selection) {
// part for IE and Opera
var s = document.selection.createRange();
var minus = 0;
var position = 0;
var minusEnd = 0;
var re;
var rc;
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
if (s.text) {
part = s.text;
// OPERA support
if (typeof(input.selectionStart) == "number") {
start = input.selectionStart;
end = input.selectionEnd;
// return null if the selected text not from the needed area
if (start == end) {
return { start: start, end: end, text: s.text, length: end - start };
}
} else {
// IE support
var firstRe;
var secondRe;
re = input.createTextRange();
rc = re.duplicate();
firstRe = re.text;
re.moveToBookmark(s.getBookmark());
secondRe = re.text;
rc.setEndPoint("EndToStart", re);
// return null if the selectyed text not from the needed area
if (firstRe == secondRe && firstRe != s.text) {
return this;
}
start = rc.text.length;
end = rc.text.length + s.text.length;
}
// remove all EOL to have the same start and end positons as in MOZILLA
if (number > 0) {
for (var i = 0; i <= number; i++) {
var w = input.value.indexOf("\n", position);
if (w != -1 && w < start) {
position = w + 1;
minus++;
minusEnd = minus;
} else if (w != -1 && w >= start && w <= end) {
if (w == start + 1) {
minus--;
minusEnd--;
position = w + 1;
continue;
}
position = w + 1;
minusEnd++;
} else {
i = number;
}
}
}
if (s.text.indexOf("\n", 0) == 1) {
minusEnd = minusEnd + 2;
}
start = start - minus;
end = end - minusEnd;
return { start: start, end: end, text: s.text, length: end - start };
}
input.focus ();
if (typeof(input.selectionStart) == "number") {
start = input.selectionStart;
} else {
s = document.selection.createRange();
re = input.createTextRange();
rc = re.duplicate();
re.moveToBookmark(s.getBookmark());
rc.setEndPoint("EndToStart", re);
start = rc.text.length;
}
if (number > 0) {
for (var i = 0; i <= number; i++) {
var w = input.value.indexOf("\n", position);
if (w != -1 && w < start) {
position = w + 1;
minus++;
} else {
i = number;
}
}
}
start = start - minus;
return { start: start, end: start, text: s.text, length: 0 };
} else if (typeof(input.selectionStart) == "number" ) {
start = input.selectionStart;
end = input.selectionEnd;
part = input.value.substring(input.selectionStart, input.selectionEnd);
return { start: start, end: end, text: part, length: end - start };
} else { return { start: undefined, end: undefined, text: undefined, length: undefined }; }
},
// function for the replacement of the selected text
replaceSelection: function(inputStr) {
var input = this.jquery ? this[0] : this;
//part for IE and Opera
var start;
var end;
var position = 0;
var rc;
var re;
var number = 0;
var minus = 0;
var mozScrollFix = ( input.scrollTop == undefined ) ? 0 : input.scrollTop;
if (document.selection && typeof(input.selectionStart) != "number") {
var s = document.selection.createRange();
// IE support
if (typeof(input.selectionStart) != "number") { // return null if the selected text not from the needed area
var firstRe;
var secondRe;
re = input.createTextRange();
rc = re.duplicate();
firstRe = re.text;
re.moveToBookmark(s.getBookmark());
secondRe = re.text;
rc.setEndPoint("EndToStart", re);
if (firstRe == secondRe && firstRe != s.text) {
return this;
}
}
if (s.text) {
part = s.text;
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
// IE support
start = rc.text.length;
// remove all EOL to have the same start and end positons as in MOZILLA
if (number > 0) {
for (var i = 0; i <= number; i++) {
var w = input.value.indexOf("\n", position);
if (w != -1 && w < start) {
position = w + 1;
minus++;
} else {
i = number;
}
}
}
s.text = inputStr;
caretPositionAmp = rc.text.length + inputStr.length;
re.move("character", caretPositionAmp);
document.selection.empty();
input.blur();
}
return this;
} else if (typeof(input.selectionStart) == "number" && // MOZILLA support
input.selectionStart != input.selectionEnd) {
start = input.selectionStart;
end = input.selectionEnd;
input.value = input.value.substr(0, start) + inputStr + input.value.substr(end);
position = start + inputStr.length;
input.setSelectionRange(position, position);
input.scrollTop = mozScrollFix;
return this;
}
return this;
},
//Set Selection in text
setSelection: function(startPosition, endPosition) {
startPosition = parseInt(startPosition);
endPosition = parseInt(endPosition);
var input = this.jquery ? this[0] : this;
input.focus ();
if (typeof(input.selectionStart) != "number") {
re = input.createTextRange();
if (re.text.length < endPosition) {
endPosition = re.text.length+1;
}
}
if (endPosition < startPosition) {
return this;
}
if (document.selection) {
var number = 0;
var plus = 0;
var position = 0;
var plusEnd = 0;
if (typeof(input.selectionStart) != "number") { // IE
re.collapse(true);
re.moveEnd('character', endPosition);
re.moveStart('character', startPosition);
re.select();
return this;
} else if (typeof(input.selectionStart) == "number") { // Opera
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
if (number > 0) {
for (var i = 0; i <= number; i++) {
var w = input.value.indexOf("\n", position);
if (w != -1 && w < startPosition) {
position = w + 1;
plus++;
plusEnd = plus;
} else if (w != -1 && w >= startPosition && w <= endPosition) {
if (w == startPosition + 1) {
plus--;
plusEnd--;
position = w + 1;
continue;
}
position = w + 1;
plusEnd++;
} else {
i = number;
}
}
}
startPosition = startPosition +plus;
endPosition = endPosition + plusEnd;
input.selectionStart = startPosition;
input.selectionEnd = endPosition;
return this;
} else {
return this;
}
}
else if (input.selectionStart) { // MOZILLA support
input.focus ();
input.selectionStart = startPosition;
input.selectionEnd = endPosition;
return this;
}
},
// insert text at current caret position
insertAtCaretPos: function(inputStr) {
var input = this.jquery ? this[0] : this;
var start;
var end;
var position;
var s;
var re;
var rc;
var point;
var minus = 0;
var number = 0;
var mozScrollFix = ( input.scrollTop == undefined ) ? 0 : input.scrollTop;
input.focus();
if (document.selection && typeof(input.selectionStart) != "number") {
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
point = parseInt(caretPositionAmp);
if (number > 0) {
for (var i = 0; i <= number; i++) {
var w = input.value.indexOf("\n", position);
if (w != -1 && w <= point) {
position = w + 1;
point = point - 1;
minus++;
}
}
}
}
caretPositionAmp = parseInt(caretPositionAmp);
// IE
input.onmouseup = function() { // for IE because it loses caret position when focus changed
if (document.selection && typeof(input.selectionStart) != "number") {
input.focus();
s = document.selection.createRange();
re = input.createTextRange();
rc = re.duplicate();
re.moveToBookmark(s.getBookmark());
rc.setEndPoint("EndToStart", re);
caretPositionAmp = rc.text.length;
}
}
if (document.selection && typeof(input.selectionStart) != "number") {
s = document.selection.createRange();
if (s.text.length != 0) {
return this;
}
re = input.createTextRange();
textLength = re.text.length;
rc = re.duplicate();
re.moveToBookmark(s.getBookmark());
rc.setEndPoint("EndToStart", re);
start = rc.text.length;
if (caretPositionAmp > 0 && start ==0) {
minus = caretPositionAmp - minus;
re.move("character", minus);
re.select();
s = document.selection.createRange();
caretPositionAmp += inputStr.length;
} else if (!(caretPositionAmp >= 0) && textLength ==0) {
s = document.selection.createRange();
caretPositionAmp = inputStr.length + textLength;
} else if (!(caretPositionAmp >= 0) && start ==0) {
re.move("character", textLength);
re.select();
s = document.selection.createRange();
caretPositionAmp = inputStr.length + textLength;
} else if (!(caretPositionAmp >= 0) && start > 0) {
re.move("character", 0);
document.selection.empty();
re.select();
s = document.selection.createRange();
caretPositionAmp = start + inputStr.length;
} else if (caretPositionAmp >= 0 && caretPositionAmp == textLength) {
if (textLength != 0) {
re.move("character", textLength);
re.select();
} else {
re.move("character", 0);
}
s = document.selection.createRange();
caretPositionAmp = inputStr.length + textLength;
} else if (caretPositionAmp >= 0 && start != 0 && caretPositionAmp >= start) {
minus = caretPositionAmp - start;
re.move("character", minus);
document.selection.empty();
re.select();
s = document.selection.createRange();
caretPositionAmp = caretPositionAmp + inputStr.length;
} else if (caretPositionAmp >= 0 && start != 0 && caretPositionAmp < start) {
re.move("character", 0);
document.selection.empty();
re.select();
s = document.selection.createRange();
caretPositionAmp = caretPositionAmp + inputStr.length;
} else {
document.selection.empty();
re.select();
s = document.selection.createRange();
caretPositionAmp = caretPositionAmp + inputStr.length;
}
s.text = inputStr;
input.focus();
return this;
} else if (typeof(input.selectionStart) == "number" && // MOZILLA support
input.selectionStart == input.selectionEnd) {
position = input.selectionStart + inputStr.length;
start = input.selectionStart;
end = input.selectionEnd;
input.value = input.value.substr(0, start) + inputStr + input.value.substr(end);
input.setSelectionRange(position, position);
input.scrollTop = mozScrollFix;
return this;
}
return this;
},
// Set caret position
setCaretPos: function(inputStr) {
var input = this.jquery ? this[0] : this;
var s;
var re;
var position;
var number = 0;
var minus = 0;
var w;
input.focus();
if (parseInt(inputStr) == 0) {
return this;
}
//if (document.selection && typeof(input.selectionStart) == "number") {
if (parseInt(inputStr) > 0) {
inputStr = parseInt(inputStr) - 1;
if (document.selection && typeof(input.selectionStart) == "number" && input.selectionStart == input.selectionEnd) {
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
if (number > 0) {
for (var i = 0; i <= number; i++) {
w = input.value.indexOf("\n", position);
if (w != -1 && w <= inputStr) {
position = w + 1;
inputStr = parseInt(inputStr) + 1;
}
}
}
}
}
else if (parseInt(inputStr) < 0) {
inputStr = parseInt(inputStr) + 1;
if (document.selection && typeof(input.selectionStart) != "number") {
inputStr = input.value.length + parseInt(inputStr);
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
if (number > 0) {
for (var i = 0; i <= number; i++) {
w = input.value.indexOf("\n", position);
if (w != -1 && w <= inputStr) {
position = w + 1;
inputStr = parseInt(inputStr) - 1;
minus += 1;
}
}
inputStr = inputStr + minus - number;
}
} else if (document.selection && typeof(input.selectionStart) == "number") {
inputStr = input.value.length + parseInt(inputStr);
if (input.value.match(/\n/g) != null) {
number = input.value.match(/\n/g).length;// number of EOL simbols
}
if (number > 0) {
inputStr = parseInt(inputStr) - number;
for (var i = 0; i <= number; i++) {
w = input.value.indexOf("\n", position);
if (w != -1 && w <= (inputStr)) {
position = w + 1;
inputStr = parseInt(inputStr) + 1;
minus += 1;
}
}
}
} else { inputStr = input.value.length + parseInt(inputStr); }
} else { return this; }
// IE
if (document.selection && typeof(input.selectionStart) != "number") {
s = document.selection.createRange();
if (s.text != 0) {
return this;
}
re = input.createTextRange();
re.collapse(true);
re.moveEnd('character', inputStr);
re.moveStart('character', inputStr);
re.select();
caretPositionAmp = inputStr;
return this;
} else if (typeof(input.selectionStart) == "number" && // MOZILLA support
input.selectionStart == input.selectionEnd) {
input.setSelectionRange(inputStr, inputStr);
return this;
}
return this;
},
countCharacters: function(str) {
var input = this.jquery ? this[0] : this;
if (input.value.match(/\r/g) != null) {
return input.value.length - input.value.match(/\r/g).length;
}
return input.value.length;
},
setMaxLength: function(max, f) {
this.each(function() {
var input = this.jquery ? this[0] : this;
var type = input.type;
var isSelected;
var maxCharacters;
// remove limit if input is a negative number
if (parseInt(max) < 0) {
max=100000000;
}
if (type == "text") {
input.maxLength = max;
}
if (type == "textarea" || type == "text") {
input.onkeypress = function(e) {
var spacesR = input.value.match(/\r/g);
maxCharacters = max;
if (spacesR != null) {
maxCharacters = parseInt(maxCharacters) + spacesR.length;
}
// get event
var key = e || event;
var keyCode = key.keyCode;
// check if any part of text is selected
if (document.selection) {
isSelected = document.selection.createRange().text.length > 0;
} else {
isSelected = input.selectionStart != input.selectionEnd;
}
if (input.value.length >= maxCharacters && (keyCode > 47 || keyCode == 32 ||
keyCode == 0 || keyCode == 13) && !key.ctrlKey && !key.altKey && !isSelected) {
input.value = input.value.substring(0,maxCharacters);
if (typeof(f) == "function") { f() } //callback function
return false;
}
}
input.onkeyup = function() {
var spacesR = input.value.match(/\r/g);
var plus = 0;
var position = 0;
maxCharacters = max;
if (spacesR != null) {
for (var i = 0; i <= spacesR.length; i++) {
if (input.value.indexOf("\n", position) <= parseInt(max)) {
plus++;
position = input.value.indexOf("\n", position) + 1;
}
}
maxCharacters = parseInt(max) + plus;
}
if (input.value.length > maxCharacters) {
input.value = input.value.substring(0, maxCharacters);
if (typeof(f) == "function") { f() }
return this;
}
}
} else { return this; }
})
return this;
}
});