yomichan/ext/fg/js/source-element.js
2016-07-25 20:43:35 -07:00

77 lines
1.9 KiB
JavaScript

/*
* Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
* Author: Alex Yatskov <alex@foosoft.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
class TextSourceElement {
constructor(element, length=-1) {
this.element = element;
this.length = length;
}
clone() {
return new TextSourceElement(this.element, this.length);
}
text() {
const text = this.textRaw();
return this.length < 0 ? text : text.substring(0, this.length);
}
textRaw() {
switch (this.element.nodeName) {
case 'BUTTON':
return this.element.innerHTML;
case 'IMG':
return this.element.getAttribute('alt');
default:
return this.element.value;
}
}
setStartOffset(length) {
// NOP
return 0;
}
setEndOffset(length) {
this.length = length;
return length;
}
containsPoint(point) {
const rect = this.getRect();
return point.x >= rect.left && point.x <= rect.right;
}
getRect() {
return this.element.getBoundingClientRect();
}
select() {
// NOP
}
deselect() {
// NOP
}
equals(other) {
return other.element && other.textRaw() == this.textRaw();
}
}