From 20b102b478ca55a72656ad734cc20b976ec32fc4 Mon Sep 17 00:00:00 2001
From: Sergey Kirillov <sergey.kirillov@gmail.com>
Date: Sat, 31 May 2014 13:38:55 +0300
Subject: [PATCH 1/4] Added context for config handlers

---
 mithril.js         |  2 +-
 tests/e2e/tests.js | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/mithril.js b/mithril.js
index b3b260fd..419ca4fd 100644
--- a/mithril.js
+++ b/mithril.js
@@ -86,7 +86,7 @@ Mithril = m = new function app(window) {
 				cached.nodes.intact = true
 				if (shouldReattach === true) parentElement.insertBefore(node, parentElement.childNodes[index] || null)
 			}
-			if (type.call(data.attrs["config"]) == "[object Function]") data.attrs["config"](node, !isNew)
+			if (type.call(data.attrs["config"]) == "[object Function]") data.attrs["config"](node, !isNew, cached.config_context=cached.config_context || {})
 		}
 		else {
 			var node
diff --git a/tests/e2e/tests.js b/tests/e2e/tests.js
index a8c03e3d..c9ecbbf7 100644
--- a/tests/e2e/tests.js
+++ b/tests/e2e/tests.js
@@ -45,3 +45,20 @@ test('issue99 regression', function() {
 	m.render(dummyEl, view2);
 	equal(dummyEl.innerHTML, '<div><span>0</span></div>', 'view2 should be rendered correctly');
 });
+
+
+test('config handler context', function() {
+	expect(3);
+	var view = m('div', {config: function(evt, isInitialized, context){
+		equal(context instanceof Object, true);
+		context.data = 1;
+	}})
+	m.render(dummyEl, view);
+
+	var view = m('div', {config: function(evt, isInitialized, context){
+		equal(context instanceof Object, true);
+		equal(context.data, 1);
+	}})
+	m.render(dummyEl, view);
+
+})

From 5a2d7fdf815363cea4800c05ca607ee92efd1b55 Mon Sep 17 00:00:00 2001
From: Sergey Kirillov <sergey.kirillov@gmail.com>
Date: Sat, 31 May 2014 13:49:24 +0300
Subject: [PATCH 2/4] Added mocked test as well

---
 tests/mithril-tests.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index c3874ad8..3a24b1fa 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -926,9 +926,19 @@ function testMithril(mock) {
 	test(function() {
 		return m.deps.factory.toString().indexOf("console") < 0
 	})
+
+	// config context
+	test(function() {
+		var root = mock.document.createElement("div")
+
+		var success = false;
+		m.render(root, m("div", {config: function(elem, isInitialized, ctx) {ctx.data=1}}));
+		m.render(root, m("div", {config: function(elem, isInitialized, ctx) {success = ctx.data===1}}));
+		return success;
+	})
 }
 
 //mocks
 testMithril(mock.window)
 
-test.print(console.log)
\ No newline at end of file
+test.print(console.log)

From 164e5b178c753096677e251fcd99cfba2a053325 Mon Sep 17 00:00:00 2001
From: Sergey Kirillov <sergey.kirillov@gmail.com>
Date: Sat, 31 May 2014 18:49:04 +0300
Subject: [PATCH 3/4] Added more tests for config context

---
 tests/mithril-tests.js | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index 3a24b1fa..3b33a72e 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -936,6 +936,26 @@ function testMithril(mock) {
 		m.render(root, m("div", {config: function(elem, isInitialized, ctx) {success = ctx.data===1}}));
 		return success;
 	})
+
+	// more complex config context
+	test(function() {
+		var root = mock.document.createElement("div")
+
+		var idx = 0;
+		var success = true;
+		var statefulConfig = function(elem, isInitialized, ctx) {ctx.data=idx++}
+		var node = m("div", {config: statefulConfig});
+		m.render(root, [node, node]);
+
+		idx = 0;
+		var checkConfig = function(elem, isInitialized, ctx) {
+			success = success && (ctx.data === idx++)
+		}
+		node = m("div", {config: statefulConfig});
+		m.render(root, [node, node]);
+		return success;
+	})
+
 }
 
 //mocks

From af2fdc042103d5d14947a42f5ea86432d901c3be Mon Sep 17 00:00:00 2001
From: Sergey Kirillov <sergey.kirillov@gmail.com>
Date: Sat, 31 May 2014 18:51:13 +0300
Subject: [PATCH 4/4] Fixed typo in complex config test

---
 tests/mithril-tests.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index 3b33a72e..214bd316 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -951,7 +951,7 @@ function testMithril(mock) {
 		var checkConfig = function(elem, isInitialized, ctx) {
 			success = success && (ctx.data === idx++)
 		}
-		node = m("div", {config: statefulConfig});
+		node = m("div", {config: checkConfig});
 		m.render(root, [node, node]);
 		return success;
 	})