Buffer add finishAll method

c3.js

@@ -117,6 +117,23 @@
     };
 
     /**
+     * Resolves while buffer is not empty, but not more than 10 times.
+     * @function finishAll
+     * @returns {int} How many times 'finish' was called
+     */
+    Buffer.prototype.finishAll = function(){
+        var self = this;
+        var counter = 0;
+
+        while(!self.isEmpty() && counter<10){
+            self.finish();
+            counter++;
+        }
+
+        return counter;
+    };
+
+    /**
      * Adds callback to main queue and starts timer
      * @function onfinish 
      * @param {Function} callback
@@ -161,6 +178,21 @@
         return isUndefined(self.namedCallbacks[id]);
     };
 
+    Buffer.prototype.isEmpty = function(){
+        var self = this;
+
+        for(var id in self.namedCallbacks){
+            if(self.has(id)){
+                return false;
+            }
+        }
+
+        var callbacks = self.callbacks.length == 0;
+        var lastCallbacks = self.lastCallbacks.length == 0;
+
+        return callbacks && lastCallbacks;
+    };
+
     /**
      * Sets timeout after which buffer should fire
      * @function setTimeout

src/buffer.js

@@ -112,6 +112,23 @@ Buffer.prototype.finish = function(){
 };
 
 /**
+ * Resolves while buffer is not empty, but not more than 10 times.
+ * @function finishAll
+ * @returns {int} How many times 'finish' was called
+ */
+Buffer.prototype.finishAll = function(){
+    var self = this;
+    var counter = 0;
+
+    while(!self.isEmpty() && counter<10){
+        self.finish();
+        counter++;
+    }
+
+    return counter;
+};
+
+/**
  * Adds callback to main queue and starts timer
  * @function onfinish 
  * @param {Function} callback
@@ -156,6 +173,21 @@ Buffer.prototype.has = function(id){
     return isUndefined(self.namedCallbacks[id]);
 };
 
+Buffer.prototype.isEmpty = function(){
+    var self = this;
+
+    for(var id in self.namedCallbacks){
+        if(self.has(id)){
+            return false;
+        }
+    }
+
+    var callbacks = self.callbacks.length == 0;
+    var lastCallbacks = self.lastCallbacks.length == 0;
+
+    return callbacks && lastCallbacks;
+};
+
 /**
  * Sets timeout after which buffer should fire
  * @function setTimeout