1 files changed, 55 insertions, 0 deletions
diff --git a/extension/content.js b/extension/content.js
new file mode 100644
index 00000000..dc7c7cd7
--- /dev/null
+++ b/extension/content.js
@@ -0,0 +1,55 @@
+/*
+ * 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/>.
+ */
+
+function getRangeAtCursor(e, lookAhead) {
+    const range = document.caretRangeFromPoint(e.clientX, e.clientY);
+    if (range === null) {
+        return null
+    }
+
+    const node = range.startContainer;
+    if (node.nodeType !== 3 /* TEXT_NODE */) {
+        return null;
+    }
+
+    const offset = range.startOffset;
+    const length = Math.min(node.length - offset, lookAhead);
+
+    range.setEnd(node, offset + length);
+    return range;
+}
+
+
+function onMouseDown(e) {
+    const range = getRangeAtCursor(e, 20);
+    if (range === null) {
+        return;
+    }
+
+    const selection = window.getSelection();
+    selection.removeAllRanges();
+    selection.addRange(range);
+
+    e.preventDefault();
+
+    console.log(range.toString());
+}
+
+
+
+window.addEventListener('mousedown', onMouseDown, false);