//@ sourceMappingURL=jquery.caret.map
/*
Implement Github like autocomplete mentions
http://ichord.github.com/At.js
Copyright (c) 2013 chord.luo@gmail.com
Licensed under the MIT license.
*/
/*
本插件操作 textarea 或者 input 内的插入符
只实现了获得插入符在文本框中的位置,我设置
插入符的位置.
*/
(function() {
(function(factory) {
if (typeof define === 'function' && define.amd) {
return define(['jquery'], factory);
} else {
return factory(window.jQuery);
}
})(function($) {
"use strict";
var EditableCaret, InputCaret, Mirror, Utils, methods, pluginName;
pluginName = 'caret';
EditableCaret = (function() {
function EditableCaret($inputor) {
this.$inputor = $inputor;
this.domInputor = this.$inputor[0];
}
EditableCaret.prototype.setPos = function(pos) {
return this.domInputor;
};
EditableCaret.prototype.getIEPosition = function() {
return $.noop();
};
EditableCaret.prototype.getPosition = function() {
return $.noop();
};
EditableCaret.prototype.getOldIEPos = function() {
var preCaretTextRange, textRange;
textRange = document.selection.createRange();
preCaretTextRange = document.body.createTextRange();
preCaretTextRange.moveToElementText(this.domInputor);
preCaretTextRange.setEndPoint("EndToEnd", textRange);
return preCaretTextRange.text.length;
};
EditableCaret.prototype.getPos = function() {
var clonedRange, pos, range;
if (range = this.range()) {
clonedRange = range.cloneRange();
clonedRange.selectNodeContents(this.domInputor);
clonedRange.setEnd(range.endContainer, range.endOffset);
pos = clonedRange.toString().length;
clonedRange.detach();
return pos;
} else if (document.selection) {
return this.getOldIEPos();
}
};
EditableCaret.prototype.getOldIEOffset = function() {
var range, rect;
range = document.selection.createRange().duplicate();
range.moveStart("character", -1);
rect = range.getBoundingClientRect();
return {
height: rect.bottom - rect.top,
left: rect.left,
top: rect.top
};
};
EditableCaret.prototype.getOffset = function(pos) {
var clonedRange, offset, range, rect;
if (window.getSelection && (range = this.range())) {
if (range.endOffset - 1 < 0) {
return null;
}
clonedRange = range.cloneRange();
clonedRange.setStart(range.endContainer, range.endOffset - 1);
clonedRange.setEnd(range.endContainer, range.endOffset);
rect = clonedRange.getBoundingClientRect();
offset = {
height: rect.height,
left: rect.left + rect.width,
top: rect.top
};
clonedRange.detach();
} else if (document.selection) {
offset = this.getOldIEOffset();
}
if (offset) {
offset.top += $(window).scrollTop();
offset.left += $(window).scrollLeft();
}
return offset;
};
EditableCaret.prototype.range = function() {
var sel;
if (!window.getSelection) {
return;
}
sel = window.getSelection();
if (sel.rangeCount > 0) {
return sel.getRangeAt(0);
} else {
return null;
}
};
return EditableCaret;
})();
InputCaret = (function() {
function InputCaret($inputor) {
this.$inputor = $inputor;
this.domInputor = this.$inputor[0];
}
InputCaret.prototype.getIEPos = function() {
var endRange, inputor, len, normalizedValue, pos, range, textInputRange;
inputor = this.domInputor;
range = document.selection.createRange();
pos = 0;
if (range && range.parentElement() === inputor) {
normalizedValue = inputor.value.replace(/\r\n/g, "\n");
len = normalizedValue.length;
textInputRange = inputor.createTextRange();
textInputRange.moveToBookmark(range.getBookmark());
endRange = inputor.createTextRange();
endRange.collapse(false);
if (textInputRange.compareEndPoints("StartToEnd", endRange) > -1) {
pos = len;
} else {
pos = -textInputRange.moveStart("character", -len);
}
}
return pos;
};
InputCaret.prototype.getPos = function() {
if (document.selection) {
return this.getIEPos();
} else {
return this.domInputor.selectionStart;
}
};
InputCaret.prototype.setPos = function(pos) {
var inputor, range;
inputor = this.domInputor;
if (document.selection) {
range = inputor.createTextRange();
range.move("character", pos);
range.select();
} else if (inputor.setSelectionRange) {
inputor.setSelectionRange(pos, pos);
}
return inputor;
};
InputCaret.prototype.getIEOffset = function(pos) {
var h, textRange, x, y;
textRange = this.domInputor.createTextRange();
pos || (pos = this.getPos());
textRange.move('character', pos);
x = textRange.boundingLeft;
y = textRange.boundingTop;
h = textRange.boundingHeight;
return {
left: x,
top: y,
height: h
};
};
InputCaret.prototype.getOffset = function(pos) {
var $inputor, offset, position;
$inputor = this.$inputor;
if (document.selection) {
offset = this.getIEOffset(pos);
offset.top += $(window).scrollTop() + $inputor.scrollTop();
offset.left += $(window).scrollLeft() + $inputor.scrollLeft();
return offset;
} else {
offset = $inputor.offset();
position = this.getPosition(pos);
return offset = {
left: offset.left + position.left - $inputor.scrollLeft(),
top: offset.top + position.top - $inputor.scrollTop(),
height: position.height
};
}
};
InputCaret.prototype.getPosition = function(pos) {
var $inputor, at_rect, format, html, mirror, start_range;
$inputor = this.$inputor;
format = function(value) {
return value.replace(/</g, '<').replace(/>/g, '>').replace(/`/g, '`').replace(/"/g, '"').replace(/\r\n|\r|\n/g, "<br />");
};
if (pos === void 0) {
pos = this.getPos();
}
start_range = $inputor.val().slice(0, pos);
html = "<span>" + format(start_range) + "</span>";
html += "<span id='caret'>|</span>";
mirror = new Mirror($inputor);
return at_rect = mirror.create(html).rect();
};
InputCaret.prototype.getIEPosition = function(pos) {
var h, inputorOffset, offset, x, y;
offset = this.getIEOffset(pos);
inputorOffset = this.$inputor.offset();
x = offset.left - inputorOffset.left;
y = offset.top - inputorOffset.top;
h = offset.height;
return {
left: x,
top: y,
height: h
};
};
return InputCaret;
})();
Mirror = (function() {
Mirror.prototype.css_attr = ["overflowY", "height", "width", "paddingTop", "paddingLeft", "paddingRight", "paddingBottom", "marginTop", "marginLeft", "marginRight", "marginBottom", "fontFamily", "borderStyle", "borderWidth", "wordWrap", "fontSize", "lineHeight", "overflowX", "text-align"];
function Mirror($inputor) {
this.$inputor = $inputor;
}
Mirror.prototype.mirrorCss = function() {
var css,
_this = this;
css = {
position: 'absolute',
left: -9999,
top: 0,
zIndex: -20000,
'white-space': 'pre-wrap'
};
$.each(this.css_attr, function(i, p) {
return css[p] = _this.$inputor.css(p);
});
return css;
};
Mirror.prototype.create = function(html) {
this.$mirror = $('<div></div>');
this.$mirror.css(this.mirrorCss());
this.$mirror.html(html);
this.$inputor.after(this.$mirror);
return this;
};
Mirror.prototype.rect = function() {
var $flag, pos, rect;
$flag = this.$mirror.find("#caret");
pos = $flag.position();
rect = {
left: pos.left,
top: pos.top,
height: $flag.height()
};
this.$mirror.remove();
return rect;
};
return Mirror;
})();
Utils = {
adjustOffset: function(offset, $inputor) {
if (!offset) {
return;
}
offset.top += $(window).scrollTop();
offset.left += $(window).scrollLeft();
return offset;
},
contentEditable: function($inputor) {
return !!($inputor[0].contentEditable && $inputor[0].contentEditable === 'true');
}
};
methods = {
pos: function(pos) {
if (pos) {
return this.setPos(pos);
} else {
return this.getPos();
}
},
position: function(pos) {
if (document.selection) {
return this.getIEPosition(pos);
} else {
return this.getPosition(pos);
}
},
offset: function(pos) {
return this.getOffset(pos);
}
};
$.fn.caret = function(method) {
var caret;
caret = Utils.contentEditable(this) ? new EditableCaret(this) : new InputCaret(this);
if (methods[method]) {
return methods[method].apply(caret, Array.prototype.slice.call(arguments, 1));
} else {
return $.error("Method " + method + " does not exist on jQuery.caret");
}
};
$.fn.caret.EditableCaret = EditableCaret;
$.fn.caret.InputCaret = InputCaret;
$.fn.caret.Utils = Utils;
return $.fn.caret.apis = methods;
});
}).call(this);