From b44772441daf6a0560add966d35e05e64cbf50bf Mon Sep 17 00:00:00 2001
From: amedora <americandragsterracing@gmail.com>
Date: Thu, 28 Jun 2018 10:38:02 +0900
Subject: [PATCH] implement TextEditorInterface

---
 browser/lib/TextEditorInterface.js | 53 ++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 browser/lib/TextEditorInterface.js

diff --git a/browser/lib/TextEditorInterface.js b/browser/lib/TextEditorInterface.js
new file mode 100644
index 00000000..53ae2337
--- /dev/null
+++ b/browser/lib/TextEditorInterface.js
@@ -0,0 +1,53 @@
+import { Point } from '@susisu/mte-kernel'
+
+export default class TextEditorInterface {
+  constructor (editor) {
+    this.editor = editor
+  }
+
+  getCursorPosition () {
+    const pos = this.editor.getCursor()
+    return new Point(pos.line, pos.ch)
+  }
+
+  setCursorPosition (pos) {
+    this.editor.setCursor({line: pos.row, ch: pos.column})
+  }
+
+  setSelectionRange (range) {
+    this.editor.setSelection({
+      anchor: {line: range.start.row, ch: range.start.column},
+      head: {line: range.end.row, ch: range.end.column}
+    })
+  }
+
+  getLastRow () {
+    return this.editor.lastLine()
+  }
+
+  acceptsTableEdit (row) {
+    return true
+  }
+
+  getLine (row) {
+    return this.editor.getLine(row)
+  }
+
+  insertLine (row, line) {
+    this.editor.replaceRange(line, {line: row, ch: 0})
+  }
+
+  deleteLine (row) {
+    this.editor.replaceRange('', {line: row, ch: 0}, {line: row, ch: this.editor.getLine(row).length})
+  }
+
+  replaceLines (startRow, endRow, lines) {
+    endRow-- // because endRow is a first line after a table.
+    const endRowCh = this.editor.getLine(endRow).length
+    this.editor.replaceRange(lines, {line: startRow, ch: 0}, {line: endRow, ch: endRowCh})
+  }
+
+  transact (func) {
+    func()
+  }
+}