%PDF-
%PDF-
Mini Shell
Mini Shell
/**
* jQuery plugin for getting position of cursor in textarea
* @license under Apache license http://www.apache.org/licenses/LICENSE-2.0
* @author Bevis Zhao (i@bevis.me, http://bevis.me)
*
* Modified by Atlassian
*/
(function($) {
var calculator = {
// key styles
primaryStyles: ['fontFamily', 'fontSize', 'fontWeight', 'fontVariant', 'fontStyle',
'paddingLeft', 'paddingTop', 'paddingBottom', 'paddingRight',
'marginLeft', 'marginTop', 'marginBottom', 'marginRight',
'borderLeftColor', 'borderTopColor', 'borderBottomColor', 'borderRightColor',
'borderLeftStyle', 'borderTopStyle', 'borderBottomStyle', 'borderRightStyle',
'borderLeftWidth', 'borderTopWidth', 'borderBottomWidth', 'borderRightWidth',
'lineHeight', 'outline', 'letterSpacing', 'wordSpacing', 'textAlign', 'verticalAlign'],
specificStyle: {
'word-wrap': 'break-word',
'overflow-x': 'hidden',
'overflow-y': 'auto'
},
toHtml : function(text) {
return text.replace(/</g,'<').replace(/>/g,'>').replace(/\n/g, '<br>')
.split(' ').join('<span style="white-space:prev-wrap"> </span>');
},
// calculate position
getCaretPosition: function(cursorPositionOffset) {
var cal = calculator, self = this, element = self[0], elementOffset = self.offset();
// IE has easy way to get caret offset position
if ($.browser.msie) {
// must get focus first
if(element !== document.activeElement) {
//ATLASSIAN CHANGE
//Only reset the focus if the element didn't already have focus,
//prevents IE scrolling the element into view, which can throw out the offset
element.focus();
}
var range = document.selection.createRange();
$('#hskeywords').val(element.scrollTop);
return {
left: (range.boundingLeft) - elementOffset.left,
top: parseInt(range.boundingTop) - elementOffset.top + element.scrollTop
+ document.documentElement.scrollTop + parseInt(self.getComputedStyle("fontSize"))
};
}
cal.simulator.empty();
// clone primary styles to imitate textarea
$.each(cal.primaryStyles, function(index, styleName) {
self.cloneStyle(cal.simulator, styleName);
});
// caculate width and height
cal.simulator.css($.extend({
'width': self.width(),
'height': self.height()
}, cal.specificStyle));
cursorPositionOffset = cursorPositionOffset || 0;
var value = self.val(), cursorPosition = self.getCursorPosition() + cursorPositionOffset;
var beforeText = value.substring(0, cursorPosition),
afterText = value.substring(cursorPosition);
var before = $('<span class="before"/>').html(cal.toHtml(beforeText)),
focus = $('<span class="focus"/>'),
after = $('<span class="after"/>').html(cal.toHtml(afterText));
cal.simulator.append(before).append(focus).append(after);
var focusOffset = focus.offset(), simulatorOffset = cal.simulator.offset();
// alert(focusOffset.left + ',' + simulatorOffset.left + ',' + element.scrollLeft);
return {
top: focusOffset.top - simulatorOffset.top - element.scrollTop
// calculate and add the font height except Firefox
+ parseInt(self.getComputedStyle("fontSize")),
left: focus[0].offsetLeft - cal.simulator[0].offsetLeft - element.scrollLeft
};
}
};
$(function() {
calculator.simulator = $('<div id="textarea_simulator"/>').css({
position: 'absolute',
top: 0,
left: 0,
visibility: 'hidden'
}).appendTo(document.body);
});
$.fn.extend({
getComputedStyle: function(styleName) {
if (this.length == 0) {
return;
}
var thiz = this[0];
var result = this.css(styleName);
result = result || ($.browser.msie ?
thiz.currentStyle[styleName]:
document.defaultView.getComputedStyle(thiz, null)[styleName]);
return result;
},
// easy clone method
cloneStyle: function(target, styleName) {
var styleVal = this.getComputedStyle(styleName);
if (!!styleVal) {
$(target).css(styleName, styleVal);
}
},
cloneAllStyle: function(target, style) {
var thiz = this[0];
for (var styleName in thiz.style) {
var val = thiz.style[styleName];
typeof val == 'string' || typeof val == 'number'
? this.cloneStyle(target, styleName)
: NaN;
}
},
getCursorPosition : function() {
var thiz = this[0], result = 0;
if ('selectionStart' in thiz) {
result = thiz.selectionStart;
} else if('selection' in document) {
var range = document.selection.createRange();
if (parseInt($.browser.version) > 6) {
thiz.focus();
var length = document.selection.createRange().text.length;
range.moveStart('character', - thiz.value.length);
result = range.text.length - length;
} else {
var bodyRange = document.body.createTextRange();
bodyRange.moveToElementText(thiz);
for (; bodyRange.compareEndPoints("StartToStart", range) < 0; result++)
bodyRange.moveStart('character', 1);
for (var i = 0; i <= result; i++) {
if (thiz.value.charAt(i) == '\n') {
result++;
}
}
var enterCount = thiz.value.split('\n').length - 1;
result -= enterCount;
return result;
}
}
return result;
},
getCaretPosition: calculator.getCaretPosition
});
})(jQuery);
Zerion Mini Shell 1.0