From 258470e19cd653b3c317bc9c2c8c5599e79f7e4b Mon Sep 17 00:00:00 2001
From: Peter Parente <pparent@us.ibm.com>
Date: Tue, 8 Dec 2015 22:31:52 -0500
Subject: [PATCH] Support multicell selection in markdown conversion

Fixes #803

(c) Copyright IBM Corp. 2015
---
 notebook/static/notebook/js/actions.js     |  2 +-
 notebook/static/notebook/js/maintoolbar.js |  2 +-
 notebook/static/notebook/js/notebook.js    | 16 ++++++++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/notebook/static/notebook/js/actions.js b/notebook/static/notebook/js/actions.js
index 2774fe80b..9674b35c5 100644
--- a/notebook/static/notebook/js/actions.js
+++ b/notebook/static/notebook/js/actions.js
@@ -254,7 +254,7 @@ define(function(require){
             help    : 'to markdown',
             help_index : 'cb',
             handler : function (env) {
-                env.notebook.to_markdown();
+                env.notebook.cells_to_markdown();
             }
         },
         'change-cell-to-raw' : {
diff --git a/notebook/static/notebook/js/maintoolbar.js b/notebook/static/notebook/js/maintoolbar.js
index 10af1d07d..f6ad540c9 100644
--- a/notebook/static/notebook/js/maintoolbar.js
+++ b/notebook/static/notebook/js/maintoolbar.js
@@ -111,7 +111,7 @@ define([
                 that.notebook.cells_to_code();
                 break;
             case 'markdown':
-                that.notebook.to_markdown();
+                that.notebook.cells_to_markdown();
                 break;
             case 'raw':
                 that.notebook.cells_to_raw();
diff --git a/notebook/static/notebook/js/notebook.js b/notebook/static/notebook/js/notebook.js
index 3d91a5274..fca65f0cd 100644
--- a/notebook/static/notebook/js/notebook.js
+++ b/notebook/static/notebook/js/notebook.js
@@ -1191,6 +1191,7 @@ define(function (require) {
             this.to_code(indices[i]);
         }
     };
+
     /**
      * Turn a cell into a code cell.
      * 
@@ -1222,6 +1223,21 @@ define(function (require) {
         }
     };
 
+    /**
+     * Turn one or more cells into Markdown.
+     *
+     * @param {Array} indices - cell indices to convert
+     */
+     Notebook.prototype.cells_to_markdown = function (indices) {
+        if (indices === undefined) {
+            indices = this.get_selected_cells_indices();
+        }
+
+        for(var i=0; i < indices.length; i++) {
+            this.to_markdown(indices[i]);
+        }
+     };
+
     /**
      * Turn a cell into a Markdown cell.
      *