1 files changed, 76 insertions, 0 deletions
diff --git a/ext/fg/js/source-element.js b/ext/fg/js/source-element.js
new file mode 100644
index 00000000..3110ed53
--- /dev/null
+++ b/ext/fg/js/source-element.js
@@ -0,0 +1,76 @@
+/*
+ * 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();
+    }
+}