102 lines
3.0 KiB
Haxe
102 lines
3.0 KiB
Haxe
/*
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* Copyright (C)2005-2019 Haxe Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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package js;
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import js.html.TextAreaElement;
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class Selection {
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var doc:Dynamic;
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public function new(doc:TextAreaElement) {
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this.doc = doc;
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}
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public function get() {
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// Mozilla
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if (doc.selectionStart != null)
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return doc.value.substring(doc.selectionStart, doc.selectionEnd);
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// IE
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var range = untyped js.Lib.document.selection.createRange();
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if (range.parentElement() != doc)
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return "";
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return range.text;
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}
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public function select(start:Int, end:Int) {
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doc.focus();
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// Mozilla
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if (doc.selectionStart != null) {
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doc.selectionStart = start;
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doc.selectionEnd = end;
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return;
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}
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// FIX : IE count \r\n as one single char for selection
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// operations, we must then deal with it
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var value:String = doc.value;
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var p = 0, delta = 0;
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while (true) {
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var i = value.indexOf("\r\n", p);
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if (i < 0 || i > start)
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break;
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delta++;
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p = i + 2;
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}
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start -= delta;
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while (true) {
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var i = value.indexOf("\r\n", p);
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if (i < 0 || i > end)
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break;
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delta++;
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p = i + 2;
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}
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end -= delta;
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// IE
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var r = doc.createTextRange();
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r.moveEnd('textedit', -1);
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r.moveStart('character', start);
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r.moveEnd('character', end - start);
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r.select();
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}
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public function insert(left:String, text:String, right:String) {
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doc.focus();
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// Mozilla
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if (doc.selectionStart != null) {
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var top = doc.scrollTop;
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var start = doc.selectionStart;
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var end = doc.selectionEnd;
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doc.value = doc.value.substr(0, start) + left + text + right + doc.value.substr(end);
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doc.selectionStart = start + left.length;
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doc.selectionEnd = start + left.length + text.length;
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doc.scrollTop = top;
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return;
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}
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// IE
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var range = untyped js.Lib.document.selection.createRange();
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range.text = left + text + right;
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range.moveStart('character', -text.length - right.length);
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range.moveEnd('character', -right.length);
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range.select();
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}
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}
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