From 6969064b7c0eb16074128391d157f446b9d0567a Mon Sep 17 00:00:00 2001
From: Wes Cossick <wes@nextstepwebs.com>
Date: Fri, 26 Jun 2015 15:33:28 -0500
Subject: [PATCH] Basic autosave functionality

---
 README.md                   | 21 +++++++++++++++------
 source files/markdownify.js | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index c301b71..3b28622 100644
--- a/README.md
+++ b/README.md
@@ -46,19 +46,23 @@ simplemde.render();
 ## Get the content
 
 ```JavaScript
-simplemde.codemirror.getValue();
+simplemde.value();
 ```
 
 ## Configuration
 
 - **element**: The DOM element for the textarea to use. Defaults to the first textarea on the page.
-- **status**: If set `false`, hide the status bar. Defaults to `true`.
+- **status**: If set to `false`, hide the status bar. Defaults to `true`.
   - Optionally, you can set an array of status bar elements to include
-- **toolbar**: If set `false`, hide the toolbar. Defaults to `true`.
-- **autofocus**: If set `true`, autofocuses the editor. Defaults to `false`.
-- **lineWrapping**: If set `false`, disable line wrapping. Defaults to `true`.
-- **indentWithTabs**: If set `false`, indent using spaces instead of tabs. Defaults to `true`.
+- **toolbar**: If set to `false`, hide the toolbar. Defaults to `true`.
+- **autofocus**: If set to `true`, autofocuses the editor. Defaults to `false`.
+- **lineWrapping**: If set to `false`, disable line wrapping. Defaults to `true`.
+- **indentWithTabs**: If set to `false`, indent using spaces instead of tabs. Defaults to `true`.
 - **tabSize**: If set, customize the tab size. Defaults to `2`.
+- **autosave**: *Saves the content that users are writing, and clears it when the form is submitted*
+  - **enabled**: If set to `true`, autosave the editor. Defaults to `false`.
+  - **unique_id**: You must set a unique identifier so that SimpleMDE can autosave. Something that separates this from other textareas.
+  - **delay**: Delay between saves, in milliseconds. Defaults to `10000` (10s).
 
 ```JavaScript
 new SimpleMDE({
@@ -70,6 +74,11 @@ new SimpleMDE({
 	lineWrapping: false,
 	indentWithTabs: false,
 	tabSize: 4,
+	autosave: {
+		enabled: true,
+		unique_id: "MyUniqueID",
+		delay: 1000,
+	},
 });
 ```
 
diff --git a/source files/markdownify.js b/source files/markdownify.js
index 421a539..90e2184 100644
--- a/source files/markdownify.js	
+++ b/source files/markdownify.js	
@@ -524,10 +524,43 @@ SimpleMDE.prototype.render = function(el) {
 	if (options.status !== false) {
 		this.createStatusbar();
 	}
+	if (options.autosave != undefined && options.autosave.enabled === true) {
+		this.autosave();
+	}
 
 	this._rendered = this.element;
 };
 
+SimpleMDE.prototype.autosave = function() {
+	var content = this.value();
+	var simplemde = this;
+	
+	if(this.options.autosave.unique_id == undefined || this.options.autosave.unique_id == ""){
+		console.log("SimpleMDE: You must set a unique_id to use the autosave feature");
+		return;
+	}
+	
+	if(simplemde.element.form != null && simplemde.element.form != undefined){
+		simplemde.element.form.addEventListener("submit", function(){
+			localStorage.setItem(simplemde.options.autosave.unique_id, "");
+		});
+	}
+	
+	if(this.options.autosave.loaded !== true){
+		console.log(localStorage.getItem(this.options.autosave.unique_id));
+		this.codemirror.setValue(localStorage.getItem(this.options.autosave.unique_id));
+		this.options.autosave.loaded = true;
+	}
+	
+	if(localStorage) {
+		localStorage.setItem(this.options.autosave.unique_id, content);
+	}
+	
+	setTimeout(function() {
+		simplemde.autosave();
+	}, this.options.autosave.delay || 10000);
+};
+
 SimpleMDE.prototype.createToolbar = function(items) {
 	items = items || this.options.toolbar;