Added new feature to settings to resolve GitHub issue 13.

demo/dev.html

@@ -138,6 +138,7 @@
                     <input type='radio' name='fontSize' value='medium'><span class='medium'>Medium</span><br>
                     <input type='radio' name='fontSize' value='large'><span class='large'>Large</span><br>
                     <input type='radio' name='fontSize' value='x-large'><span class='xlarge'>Extra Large</span> -->
+                    <input type="checkbox" id="sidebarReflow" name="sidebarReflow">Reflow text when sidebars are open.</input>
                   </p>
               </div>
               <div class="closer icon-cancel-circled"></div>

demo/index.html

@@ -98,7 +98,9 @@
           <div class="md-content">
               <h3>Settings</h3>
               <div>
-                  <p></p>
+                  <p>
+                    <input type="checkbox" id="sidebarReflow" name="sidebarReflow">Reflow text when sidebars are open.</input>
+                  </p>
               </div>
               <div class="closer icon-cancel-circled"></div>
           </div>

reader/controllers/reader_controller.js

@@ -6,12 +6,20 @@ EPUBJS.reader.ReaderController = function(book) {
 			$prev = $("#prev");
 
 	var slideIn = function() {
-		$main.removeClass("closed");
+        if (Reader.settings.sidebarReflow){
-	};
+                $('#main').removeClass('single');
+        } else {
+                $main.removeClass("closed");
+        }
+    };
 
-	var slideOut = function() {
+    var slideOut = function() {
-		$main.addClass("closed");
+        if (Reader.settings.sidebarReflow){
-	};
+                $('#main').addClass('single');
+        } else {
+                $main.addClass("closed");
+        }
+    };
 
 	var showLoader = function() {
 		$loader.show();

reader/controllers/settings_controller.js

@@ -12,6 +12,12 @@ EPUBJS.reader.SettingsController = function() {
 		$settings.removeClass("md-show");
 	};
 
+	var $sidebarReflowSetting = $('#sidebarReflow');
+
+    $sidebarReflowSetting.on('click', function() {
+        Reader.settings.sidebarReflow = !Reader.settings.sidebarReflow;
+    });
+
 	$settings.find(".closer").on("click", function() {
 		hide();
 	});

reader/reader.js

@@ -37,7 +37,8 @@ EPUBJS.Reader = function(path, _options) {
 		bookmarks : null,
 		contained : null,
 		bookKey : null,
-		styles : null
+		styles : null,
+		sidebarReflow: false
 	});
 	
 	this.setBookKey(path); //-- This could be username + path or any unique string