--- /dev/null
+default:
+ ../../../bin/nitg --global --stacktrace none --no-main converter.nit
--- /dev/null
+Steps to make the example work :
+
+1. Install the native client SDK (https://developer.chrome.com/native-client/sdk/download).
+
+2. Declare the environment variable NACL_SDK_ROOT as the root of the target platform within the SDK (ex: ~/nacl_sdk/pepper_34/) :
+ $ export NACL_SDK_ROOT=/path/to/nacl_sdk/pepper_[your_version]
+
+3. Compile the Nit code with: `nitg --global converter.nit` or `make`.
+
+You must use the '--global' option. Some features in the standard library are not supported by the NaCL platform, the global compiler do not try to compile them.
+
+4. Start a local server using: `make serve`.
+
+5. Set up the Chrome browser :
+ - PNaCl is enabled by default in Chrome version 31 and later.
+ - For a better development experience, it’s also recommended to disable the Chrome cache :
+ - Open Chrome’s developer tools by clicking the menu icon menu-icon and choosing Tools > Developer tools.
+ - Click the gear icon gear-icon in the bottom right corner of the Chrome window.
+ - Under the “General” settings, check the box next to “Disable cache (while DevTools is open)”.
+ - Keep the Developer Tools pane open while developing Native Client applications.
+
+6. You can now access the application in Chrome at the address `http://localhost:5103/`.
--- /dev/null
+# This file is part of NIT ( http://www.nitlanguage.org )
+#
+# Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
+#
+# 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.
+
+# Example of a currency converter using PNaCl with Nit
+#
+# First imports the pnacl module
+# Then redefines the 'handle_dictionary' method
+# Finally creates a converter and initializes it
+
+import pnacl
+
+class Converter
+ super PnaclApp
+
+ # We have to redefine the method to do what we want when receiving a dictionary from JS
+ redef fun handle_dictionary(dictionary: PepperDictionary)
+ do
+ # Getting values from the dictionary
+ var from = dictionary["from"]
+ var to = dictionary["to"]
+ var value = dictionary["value"]
+
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "EUR" and to == "EUR" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "CAD" and to == "CAD" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # If conversion to the same currency return the same value
+ if from isa String and to isa String then
+ if from == "USD" and to == "USD" then
+ if value isa String then
+ var rez = value.to_f
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+ # Converts EUR to CAD
+ if from == "EUR" and to == "CAD" then
+ if value isa String then
+ var rez = (value.to_f * 1.52) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts EUR to USD
+ if from == "EUR" and to == "USD" then
+ if value isa String then
+ var rez = (value.to_f * 1.38640) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts CAD to EUR
+ if from == "CAD" and to == "EUR" then
+ if value isa String then
+ var rez = (value.to_f * 0.65840) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts CAD to USD
+ if from == "CAD" and to == "USD" then
+ if value isa String then
+ var rez = (value.to_f * 0.91240) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts USD to EUR
+ if from == "USD" and to == "EUR" then
+ if value isa String then
+ var rez = (value.to_f * 0.721) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ # Converts USD to CAD
+ if from == "USD" and to == "CAD" then
+ if value isa String then
+ var rez = (value.to_f * 1.095) # April 30 2014
+ var d = new PepperDictionary
+ d["value"] = rez
+ post_dictionary d
+ end
+ end
+ end
+end
+
+var converter = new Converter
+converter.initialize # Needed to correctly set up Nit control over the Pepper API
--- /dev/null
+<!--# This file is part of NIT ( http://www.nitlanguage.org )
+#
+# Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
+#
+# 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.
+-->
+<!DOCTYPE html>
+<html>
+<head>
+ <title>Converter</title>
+ <script src="js/pnacl_js.js"></script>
+ <link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
+</head>
+<body>
+ <h1>Currency converter<small> with PNaCl and Nit</small></h1>
+ <form class="form-horizontal bg-success" role="form" style="padding-top:15px;padding-bottom:1px;">
+ <div class="form-group">
+ <label for="inputConvert" class="col-sm-2 control-label">Convert</label>
+ <div class="col-sm-9">
+ <div class="row">
+ <div id="pre-input" class="col-xs-2">
+ <input id="input" type="text" class="form-control" placeholder="ex: 300" required>
+ </div>
+ <div class="col-xs-3">
+ <select id="from" class="form-control" required>
+ <option selected="selected" disabled="disabled">Currency</option>
+ <option>EUR</option>
+ <option>CAD</option>
+ <option>USD</option>
+ </select>
+ </div>
+ </div>
+ </div>
+ </div>
+ <div class="form-group">
+ <label for="inputTo" class="col-sm-2 control-label">to</label>
+ <div class="col-sm-9">
+ <div class="row">
+ <div class="col-xs-2">
+ <input id="rez" type="text" class="form-control" placeholder=".col-xs-2" disabled="disabled" style="visibility: hidden">
+ </div>
+ <div class="col-xs-3">
+ <select id="to" class="form-control" required>
+ <option selected="selected" disabled="disabled">Currency</option>
+ <option>EUR</option>
+ <option>CAD</option>
+ <option>USD</option>
+ </select>
+ </div>
+ </div>
+ </div>
+ </div>
+ </div>
+ <div class="form-group">
+ <div class="col-sm-offset-2 col-sm-10">
+ <button id="button" type="button" class="btn btn-success">Convert</button>
+ </div>
+ </div>
+ </form>
+ <p>
+ <div id="listener">
+ <!-- Listeners calling functions in pnacl_js.js -->
+ <script type="text/javascript">
+ var listener = document.getElementById('listener');
+ listener.addEventListener('load', moduleDidLoad, true);
+ listener.addEventListener('message', handleMessage, true);
+ </script>
+ <!-- Embed bloc referencing to the manifest -->
+ <embed id="converter"
+ width=0 height=0
+ src="converter.nmf"
+ type="application/x-pnacl" />
+ </div>
+ </p>
+ <script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
+ <script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
+ <script src="js/functions.js"></script>
+</body>
+</html>
--- /dev/null
+// This file is part of NIT ( http://www.nitlanguage.org )
+//
+// Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
+//
+// 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.
+
+// Checks that the text in the input is numeric and not null
+// and then if two currencies where chosen sends a dictionary to Nit.
+$( "#button" ).click(function() {
+ $("#pre-input").removeClass("has-error");
+ if (($('#input').val() == "")||($.isNumeric($('#input').val()) == false)) {
+ $("#pre-input").addClass("has-error");
+ }
+ else
+ {
+ if (($('#from').val() != null) && ($('#to').val() != null)) {
+ var dictionary = {
+ value: parseFloat($('#input').val()).toFixed(2),
+ from: $('#from').val(),
+ to: $('#to').val(),
+ }
+ converterModule.postMessage(dictionary);
+ }
+ }
+});
--- /dev/null
+// This file is part of NIT ( http://www.nitlanguage.org )
+//
+// Copyright 2014 Johan Kayser <kayser.johan@gmail.com>
+//
+// 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.
+
+converterModule = null; // Global application object.
+
+// Indicate load success.
+function moduleDidLoad() {
+ converterModule = document.getElementById('converter');
+ // Send a message to the Native Client module.
+ if (converterModule != null) {
+ console.log('converterModule loaded.');
+ }
+}
+
+// The 'message' event handler. This handler is fired when the NaCl module
+// posts a message to the browser by calling PPB_Messaging.PostMessage()
+// (in C) or pp::Instance.PostMessage() (in C++). This implementation
+// displays the result in the JS console, puts the result in the '#rez' input and make it visible.
+function handleMessage(message_event) {
+ console.log(message_event.data.value.valueOf());
+ $('#rez').val(message_event.data.value.valueOf().toFixed(2));
+ $('#rez').css('visibility', 'visible');
+}
nitlanguage / nit.git / commitdiff