355 lines
13 KiB
JavaScript
355 lines
13 KiB
JavaScript
|
/*!
|
||
|
|
* jQuery.selection - jQuery Plugin
|
||
|
|
*
|
||
|
|
* Copyright (c) 2010-2014 IWASAKI Koji (@madapaja).
|
||
|
|
* http://blog.madapaja.net/
|
||
|
|
* Under The MIT License
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
||
|
|
* a copy of this software and associated documentation files (the
|
||
|
|
* "Software"), to deal in the Software without restriction, including
|
||
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
||
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
||
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
||
|
|
* the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be
|
||
|
|
* included in all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
||
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
||
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
(function($, win, doc) {
|
||
|
|
/**
|
||
|
|
* get caret status of the selection of the element
|
||
|
|
*
|
||
|
|
* @param {Element} element target DOM element
|
||
|
|
* @return {Object} return
|
||
|
|
* @return {String} return.text selected text
|
||
|
|
* @return {Number} return.start start position of the selection
|
||
|
|
* @return {Number} return.end end position of the selection
|
||
|
|
*/
|
||
|
|
var _getCaretInfo = function(element){
|
||
|
|
var res = {
|
||
|
|
text: '',
|
||
|
|
start: 0,
|
||
|
|
end: 0
|
||
|
|
};
|
||
|
|
|
||
|
|
if (!element.value) {
|
||
|
|
/* no value or empty string */
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
if (win.getSelection) {
|
||
|
|
/* except IE */
|
||
|
|
res.start = element.selectionStart;
|
||
|
|
res.end = element.selectionEnd;
|
||
|
|
res.text = element.value.slice(res.start, res.end);
|
||
|
|
} else if (doc.selection) {
|
||
|
|
/* for IE */
|
||
|
|
element.focus();
|
||
|
|
|
||
|
|
var range = doc.selection.createRange(),
|
||
|
|
range2 = doc.body.createTextRange();
|
||
|
|
|
||
|
|
res.text = range.text;
|
||
|
|
|
||
|
|
try {
|
||
|
|
range2.moveToElementText(element);
|
||
|
|
range2.setEndPoint('StartToStart', range);
|
||
|
|
} catch (e) {
|
||
|
|
range2 = element.createTextRange();
|
||
|
|
range2.setEndPoint('StartToStart', range);
|
||
|
|
}
|
||
|
|
|
||
|
|
res.start = element.value.length - range2.text.length;
|
||
|
|
res.end = res.start + range.text.length;
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
/* give up */
|
||
|
|
}
|
||
|
|
|
||
|
|
return res;
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* caret operation for the element
|
||
|
|
* @type {Object}
|
||
|
|
*/
|
||
|
|
var _CaretOperation = {
|
||
|
|
/**
|
||
|
|
* get caret position
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @return {Object} return
|
||
|
|
* @return {Number} return.start start position for the selection
|
||
|
|
* @return {Number} return.end end position for the selection
|
||
|
|
*/
|
||
|
|
getPos: function(element) {
|
||
|
|
var tmp = _getCaretInfo(element);
|
||
|
|
return {start: tmp.start, end: tmp.end};
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* set caret position
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @param {Object} toRange caret position
|
||
|
|
* @param {Number} toRange.start start position for the selection
|
||
|
|
* @param {Number} toRange.end end position for the selection
|
||
|
|
* @param {String} caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
setPos: function(element, toRange, caret) {
|
||
|
|
caret = this._caretMode(caret);
|
||
|
|
|
||
|
|
if (caret === 'start') {
|
||
|
|
toRange.end = toRange.start;
|
||
|
|
} else if (caret === 'end') {
|
||
|
|
toRange.start = toRange.end;
|
||
|
|
}
|
||
|
|
|
||
|
|
element.focus();
|
||
|
|
try {
|
||
|
|
if (element.createTextRange) {
|
||
|
|
var range = element.createTextRange();
|
||
|
|
|
||
|
|
if (win.navigator.userAgent.toLowerCase().indexOf("msie") >= 0) {
|
||
|
|
toRange.start = element.value.substr(0, toRange.start).replace(/\r/g, '').length;
|
||
|
|
toRange.end = element.value.substr(0, toRange.end).replace(/\r/g, '').length;
|
||
|
|
}
|
||
|
|
|
||
|
|
range.collapse(true);
|
||
|
|
range.moveStart('character', toRange.start);
|
||
|
|
range.moveEnd('character', toRange.end - toRange.start);
|
||
|
|
|
||
|
|
range.select();
|
||
|
|
} else if (element.setSelectionRange) {
|
||
|
|
element.setSelectionRange(toRange.start, toRange.end);
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
/* give up */
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get selected text
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @return {String} return selected text
|
||
|
|
*/
|
||
|
|
getText: function(element) {
|
||
|
|
return _getCaretInfo(element).text;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* get caret mode
|
||
|
|
*
|
||
|
|
* @param {String} caret caret mode
|
||
|
|
* @return {String} return any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
_caretMode: function(caret) {
|
||
|
|
caret = caret || "keep";
|
||
|
|
if (caret === false) {
|
||
|
|
caret = 'end';
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (caret) {
|
||
|
|
case 'keep':
|
||
|
|
case 'start':
|
||
|
|
case 'end':
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
caret = 'keep';
|
||
|
|
}
|
||
|
|
|
||
|
|
return caret;
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* replace selected text
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @param {String} text replacement text
|
||
|
|
* @param {String} caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
replace: function(element, text, caret) {
|
||
|
|
var tmp = _getCaretInfo(element),
|
||
|
|
orig = element.value,
|
||
|
|
pos = $(element).scrollTop(),
|
||
|
|
range = {start: tmp.start, end: tmp.start + text.length};
|
||
|
|
|
||
|
|
element.value = orig.substr(0, tmp.start) + text + orig.substr(tmp.end);
|
||
|
|
|
||
|
|
$(element).scrollTop(pos);
|
||
|
|
this.setPos(element, range, caret);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* insert before the selected text
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @param {String} text insertion text
|
||
|
|
* @param {String} caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
insertBefore: function(element, text, caret) {
|
||
|
|
var tmp = _getCaretInfo(element),
|
||
|
|
orig = element.value,
|
||
|
|
pos = $(element).scrollTop(),
|
||
|
|
range = {start: tmp.start + text.length, end: tmp.end + text.length};
|
||
|
|
|
||
|
|
element.value = orig.substr(0, tmp.start) + text + orig.substr(tmp.start);
|
||
|
|
|
||
|
|
$(element).scrollTop(pos);
|
||
|
|
this.setPos(element, range, caret);
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* insert after the selected text
|
||
|
|
*
|
||
|
|
* @param {Element} element target element
|
||
|
|
* @param {String} text insertion text
|
||
|
|
* @param {String} caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
insertAfter: function(element, text, caret) {
|
||
|
|
var tmp = _getCaretInfo(element),
|
||
|
|
orig = element.value,
|
||
|
|
pos = $(element).scrollTop(),
|
||
|
|
range = {start: tmp.start, end: tmp.end};
|
||
|
|
|
||
|
|
element.value = orig.substr(0, tmp.end) + text + orig.substr(tmp.end);
|
||
|
|
|
||
|
|
$(element).scrollTop(pos);
|
||
|
|
this.setPos(element, range, caret);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
/* add jQuery.selection */
|
||
|
|
$.extend({
|
||
|
|
/**
|
||
|
|
* get selected text on the window
|
||
|
|
*
|
||
|
|
* @param {String} mode selection mode: any of the following: "text" | "html"
|
||
|
|
* @return {String} return
|
||
|
|
*/
|
||
|
|
selection: function(mode) {
|
||
|
|
var getText = ((mode || 'text').toLowerCase() === 'text');
|
||
|
|
|
||
|
|
try {
|
||
|
|
if (win.getSelection) {
|
||
|
|
if (getText) {
|
||
|
|
// get text
|
||
|
|
return win.getSelection().toString();
|
||
|
|
} else {
|
||
|
|
// get html
|
||
|
|
var sel = win.getSelection(), range;
|
||
|
|
|
||
|
|
if (sel.getRangeAt) {
|
||
|
|
range = sel.getRangeAt(0);
|
||
|
|
} else {
|
||
|
|
range = doc.createRange();
|
||
|
|
range.setStart(sel.anchorNode, sel.anchorOffset);
|
||
|
|
range.setEnd(sel.focusNode, sel.focusOffset);
|
||
|
|
}
|
||
|
|
|
||
|
|
return $('<div></div>').append(range.cloneContents()).html();
|
||
|
|
}
|
||
|
|
} else if (doc.selection) {
|
||
|
|
if (getText) {
|
||
|
|
// get text
|
||
|
|
return doc.selection.createRange().text;
|
||
|
|
} else {
|
||
|
|
// get html
|
||
|
|
return doc.selection.createRange().htmlText;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} catch (e) {
|
||
|
|
/* give up */
|
||
|
|
}
|
||
|
|
|
||
|
|
return '';
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
/* add selection */
|
||
|
|
$.fn.extend({
|
||
|
|
selection: function(mode, opts) {
|
||
|
|
opts = opts || {};
|
||
|
|
|
||
|
|
switch (mode) {
|
||
|
|
/**
|
||
|
|
* selection('getPos')
|
||
|
|
* get caret position
|
||
|
|
*
|
||
|
|
* @return {Object} return
|
||
|
|
* @return {Number} return.start start position for the selection
|
||
|
|
* @return {Number} return.end end position for the selection
|
||
|
|
*/
|
||
|
|
case 'getPos':
|
||
|
|
return _CaretOperation.getPos(this[0]);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* selection('setPos', opts)
|
||
|
|
* set caret position
|
||
|
|
*
|
||
|
|
* @param {Number} opts.start start position for the selection
|
||
|
|
* @param {Number} opts.end end position for the selection
|
||
|
|
*/
|
||
|
|
case 'setPos':
|
||
|
|
return this.each(function() {
|
||
|
|
_CaretOperation.setPos(this, opts);
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* selection('replace', opts)
|
||
|
|
* replace the selected text
|
||
|
|
*
|
||
|
|
* @param {String} opts.text replacement text
|
||
|
|
* @param {String} opts.caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
*/
|
||
|
|
case 'replace':
|
||
|
|
return this.each(function() {
|
||
|
|
_CaretOperation.replace(this, opts.text, opts.caret);
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* selection('insert', opts)
|
||
|
|
* insert before/after the selected text
|
||
|
|
*
|
||
|
|
* @param {String} opts.text insertion text
|
||
|
|
* @param {String} opts.caret caret mode: any of the following: "keep" | "start" | "end"
|
||
|
|
* @param {String} opts.mode insertion mode: any of the following: "before" | "after"
|
||
|
|
*/
|
||
|
|
case 'insert':
|
||
|
|
return this.each(function() {
|
||
|
|
if (opts.mode === 'before') {
|
||
|
|
_CaretOperation.insertBefore(this, opts.text, opts.caret);
|
||
|
|
} else {
|
||
|
|
_CaretOperation.insertAfter(this, opts.text, opts.caret);
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
/**
|
||
|
|
* selection('get')
|
||
|
|
* get selected text
|
||
|
|
*
|
||
|
|
* @return {String} return
|
||
|
|
*/
|
||
|
|
case 'get':
|
||
|
|
/* falls through */
|
||
|
|
default:
|
||
|
|
return _CaretOperation.getText(this[0]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
});
|
||
|
|
})(jQuery, window, window.document);
|