From f9b17a6d6c6e69ab6f5a28747d21ba24d602cfce Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <benjamin@barenblat.name>
Date: Fri, 19 Aug 2016 18:59:06 -0400
Subject: Support MDL toasts

---
 Makefile          | 14 +++++++++-----
 mdl/classes-1.1.3 |  1 +
 mdl/lib.urp       |  5 +++++
 mdl/mdl.ur        | 16 ++++++++++++++++
 mdl/mdlFfi.js     | 28 ++++++++++++++++++++++++++++
 mdl/mdlFfi.urs    | 15 +++++++++++++++
 6 files changed, 74 insertions(+), 5 deletions(-)
 create mode 100644 mdl/mdlFfi.js
 create mode 100644 mdl/mdlFfi.urs

diff --git a/Makefile b/Makefile
index 7d6aa97..715f208 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,14 @@ MDL_GENERATED = mdl/mdlClasses.urp mdl/mdlClasses.ur
 .PHONY: all
 all: ugtd ugtd.db
 
-ugtd initialize.sql: ugtd.urp $(MDL_GENERATED) mdl/lib.urp mdl/mdl.ur main.urs \
-  main.ur
+ugtd initialize.sql: \
+  ugtd.urp \
+    mdl/lib.urp \
+      mdl/mdlFfi.urs mdl/mdlFfi.js \
+      mdl/mdlClasses.urp \
+        mdl/mdlClasses.ur \
+      mdl/mdl.ur \
+    main.urs main.ur
 	urweb -ccompiler build_scripts/clang -output ugtd ugtd
 
 ugtd.db: initialize.sql prepopulate.sql
@@ -26,9 +32,7 @@ ugtd.db: initialize.sql prepopulate.sql
 	sqlite3 $@ <initialize.sql
 	sqlite3 $@ <prepopulate.sql
 
-.PHONY: mdl
-mdl: $(MDL_GENERATED)
-$(MDL_GENERATED): mdl/classes
+mdl/mdlClasses.urp mdl/mdlClasses.ur: mdl/classes
 	build_scripts/generate_mdl <$<
 
 .PHONY: clean
diff --git a/mdl/classes-1.1.3 b/mdl/classes-1.1.3
index 4f20735..e3ccf7e 100644
--- a/mdl/classes-1.1.3
+++ b/mdl/classes-1.1.3
@@ -783,6 +783,7 @@ mdl-js-radio
 mdl-js-ripple-effect
 mdl-js-ripple-effect--ignore-events
 mdl-js-slider
+mdl-js-snackbar
 mdl-js-spinner
 mdl-js-switch
 mdl-js-tabs
diff --git a/mdl/lib.urp b/mdl/lib.urp
index fabf5a8..9d3f870 100644
--- a/mdl/lib.urp
+++ b/mdl/lib.urp
@@ -1,3 +1,8 @@
+benignEffectful MdlFfi.showSnackbar
+ffi mdlFfi
+file /zoBIS4V6.js mdlFfi.js
+jsFunc MdlFfi.showSnackbar=UrWeb.MdlFfi.showSnackbar
 library mdlClasses
+script /zoBIS4V6.js
 
 mdl
diff --git a/mdl/mdl.ur b/mdl/mdl.ur
index f3dec74..7900822 100644
--- a/mdl/mdl.ur
+++ b/mdl/mdl.ur
@@ -13,3 +13,19 @@ CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations under the License. *)
 
 structure Classes = MdlClasses
+open Classes
+
+structure Toast = struct
+  val make : transaction {Placeholder: xbody,
+                          Show: string -> transaction unit} =
+    id <- fresh;
+    return {
+      Placeholder = <xml>
+        <div id={id} class="mdl-js-snackbar mdl-snackbar">
+          <div class="mdl-snackbar__text" />
+          <button class="mdl-snackbar__action"></button>
+        </div>
+      </xml>,
+      Show = MdlFfi.showSnackbar (show id)
+    }
+end
diff --git a/mdl/mdlFfi.js b/mdl/mdlFfi.js
new file mode 100644
index 0000000..f961cab
--- /dev/null
+++ b/mdl/mdlFfi.js
@@ -0,0 +1,28 @@
+// Copyright 2015 Google Inc.
+// Copyright 2016 Benjamin Barenblat
+//
+// Licensed under the Apache License, Version 2.0 (the “License”); you may not
+// use this file except in compliance with the License.  You may obtain a copy
+// of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an “AS IS” BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+"use strict";
+
+var UrWeb = {
+  MdlFfi: {
+
+    showSnackbar:
+        function(id, text) {
+          document.querySelector('#' + id)
+              .MaterialSnackbar.showSnackbar({message: text});
+        },
+
+  }
+};  // UrWeb.MdlFfi
diff --git a/mdl/mdlFfi.urs b/mdl/mdlFfi.urs
new file mode 100644
index 0000000..74dd636
--- /dev/null
+++ b/mdl/mdlFfi.urs
@@ -0,0 +1,15 @@
+(* Copyright 2015 Google Inc.
+Copyright 2016 Benjamin Barenblat
+
+Licensed under the Apache License, Version 2.0 (the “License”); you may not use
+this file except in compliance with the License.  You may obtain a copy of the
+License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed
+under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations under the License. *)
+
+val showSnackbar : string (* id *) -> string (* text *) -> transaction unit
-- 
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