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+/*
+ * 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();
+ }
+}