[MIG] web_widget_float_formula: v9 with i18n

* Update JS to use v9 module system
* Fix non-functioning logic for obtaining the value of an input element
* Eliminate redundant calls (e.g. there were multiple calls to eval)
* Modify formula cleanup to use localized decimal point and thousands separator
 characters
* Add JS unit tests

web_widget_float_formula/README.rst

@@ -1,36 +1,61 @@
-Allow to write simple mathematic formulas in Integer / Float fields
-===================================================================
+.. image:: https://img.shields.io/badge/licence-AGPL--3-blue.svg
+   :target: http://www.gnu.org/licenses/agpl-3.0-standalone.html
+   :alt: License: AGPL-3
 
-* Possibility to tip a text like "=45 + 4/3 - 5 * (2 +1)";
-* if the formula is correct, The result will be computed and displayed;
-* if the formula is not correct, the initial text is displayed;
+========================
+Formulas in Float Fields
+========================
 
-Technical informations
-----------------------
+This module allows the use of simple math formulas in integer/float fields 
+(e.g. "=45 + 4/3 - 5 * (2 + 1)").
 
-* Overloads "instance.web.form.FieldFloat"; (so works for fields.integer &
-  fields.float);
-* To compute, the module simply use the eval() javascript function;
-* Rounding computation is not done by this module (The module has the same
-  behaviour if the user tips "=1/3" or if he tips "0.33[...]");
-* avoid code injonction by regexpr test: "=alert('security')" is not valid;
+* Only supports parentheses, decimal points, thousands separators, and the 
+  operators "+", "-", "*", and "/"
+* Will use the decimal point and thousands separator characters associated 
+  with your language
+* If the formula is valid, the result will be computed and displayed, and the 
+  formula will be stored for editing
+* If the formula is not valid, it's retained in the field as text
+
+**Technical Details**
+
+* Overloads web.form_widgets.FieldFloat (so it works for fields.integer & 
+  fields.float)
+* Uses the eval() JS function to evaluate the formula
+* Does not do any rounding (this is handled elsewhere)
+* Avoids code injection by applying strict regex to formula prior to eval() 
+  (e.g. "=alert('security')" would not get evaluated)
+
+Installation
+============
+
+To install this module, simply follow the standard install process.
+
+Configuration
+=============
+
+No configuration is needed or possible.
 
 Usage
 =====
 
-See demo here Video: http://www.youtube.com/watch?v=jQGdD34WYrA&hd=1
+Install and enjoy. A short demo video can be found at 
+http://www.youtube.com/watch?v=jQGdD34WYrA.
 
-Roadmap / Limit
-===============
-* Only supports the four operators: "+" "-" "*" "/" and parenthesis;
+.. image:: https://odoo-community.org/website/image/ir.attachment/5784_f2813bd/datas
+   :alt: Try me on Runbot
+   :target: https://runbot.odoo-community.org/runbot/162/9.0
+
+Known Issues / Roadmap
+======================
 
 Bug Tracker
 ===========
 
 Bugs are tracked on `GitHub Issues <https://github.com/OCA/web/issues>`_.
 In case of trouble, please check there if your issue has already been reported.
-If you spotted it first, help us smashing it by providing a detailed and welcomed feedback
-`here <https://github.com/OCA/web/issues/new?body=module:%20web_widget_float_formula%0Aversion:%208.0%0A%0A**Steps%20to%20reproduce**%0A-%20...%0A%0A**Current%20behavior**%0A%0A**Expected%20behavior**>`_.
+If you spotted it first, help us smash it by providing detailed and welcomed 
+feedback.
 
 Credits
 =======
@@ -39,6 +64,7 @@ Contributors
 ------------
 
 * Sylvain Le Gal (https://twitter.com/legalsylvain)
+* Oleg Bulkin <o.bulkin@gmail.com>
 
 Maintainer
 ----------
@@ -49,7 +75,8 @@ Maintainer
 
 This module is maintained by the OCA.
 
-OCA, or the Odoo Community Association, is a nonprofit organization whose mission is to support the collaborative development of Odoo features and promote its widespread use.
+OCA, or the Odoo Community Association, is a nonprofit organization whose 
+mission is to support the collaborative development of Odoo features and 
+promote its widespread use.
 
 To contribute to this module, please visit http://odoo-community.org.
-

web_widget_float_formula/__init__.py

@@ -1,4 +0,0 @@
-# -*- encoding: utf-8 -*-
-###############################################################################
-#    See __openerp__.py file for Copyright and Licence Informations.
-###############################################################################

web_widget_float_formula/__openerp__.py

@@ -1,19 +1,22 @@
-# -*- encoding: utf-8 -*-
-###############################################################################
-#    See Copyright and Licence Informations undermentioned.
-###############################################################################
+# -*- coding: utf-8 -*-
+# Copyright GRAP
+# Copyright 2016 LasLabs Inc.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
 {
-    'name': 'Web Widget - Formulas in Float fields',
-    'version': '8.0.1.0.0',
-    'category': 'web',
-    'author': 'GRAP,Odoo Community Association (OCA)',
+    'name': 'Web Widget - Formulas in Float Fields',
+    'summary': 'Allow use of simple formulas in float fields',
+    'version': '9.0.1.0.0',
+    'category': 'Web',
+    'author': 'GRAP, LasLabs, Odoo Community Association (OCA)',
     'website': 'http://www.grap.coop',
     'license': 'AGPL-3',
     'depends': [
         'web',
     ],
     'data': [
-        'views/qweb.xml',
+        'views/web_widget_float_formula.xml',
     ],
-    'installable': False,
+    'installable': True,
+    'application': False,
 }

web_widget_float_formula/static/src/js/models.js

@@ -1,132 +0,0 @@
-/*******************************************************************************
-See __openerp__.py file for Copyright and Licence Informations.
-*******************************************************************************/
-
-openerp.web_widget_float_formula = function (instance) {
-
-    instance.web.FormView = instance.web.FormView.extend({
-        /***********************************************************************
-        Overload section 
-        ***********************************************************************/
-
-        /**
-         * Overload : '_process_save' function 
-            1: to force computation of formula if the user realize a keydown directly after the formula input in a tree view ;
-            2: to clean up the '_formula_text' value in all case to avoid bugs in tree view ;
-         */
-        _process_save: function(save_obj) {
-            for (var f in this.fields) {
-                if (!this.fields.hasOwnProperty(f)) { continue; }
-                f = this.fields[f];
-                if (f.hasOwnProperty('_formula_text')){
-                    currentval = f.$('input').attr('value')
-                    if (typeof currentval != 'undefined'){
-                        formula = f._get_valid_expression(currentval);
-                        if (formula){
-                            f._compute_result();
-                        }
-                    }
-                    f._clean_formula_text();
-                }
-            }
-            return this._super(save_obj);
-        },
-
-    });
-
-    instance.web.form.FieldFloat = instance.web.form.FieldFloat.extend({
-        /***********************************************************************
-        Overload section 
-        ***********************************************************************/
-
-        /**
-         * Overload : 'start' function to catch 'blur' and 'focus' events.
-         */
-        start: function() {
-            this.on("blurred", this, this._compute_result);
-            this.on("focused", this, this._display_formula);
-            return this._super();
-        },
-
-        /**
-         * Overload : 'initialize_content' function to clean '_formula_text' value.
-         */
-        initialize_content: function() {
-            this._clean_formula_text();
-            return this._super();
-        },
-
-        /***********************************************************************
-        Custom section 
-        ***********************************************************************/
-
-        /**
-         * keep in memory the formula to allow user to edit it again.
-         The formula has to be keeped in memory until a 'save' action.
-         */
-        _formula_text: '',
-
-        /**
-         * Clean '_formula_text' value.
-         */
-        _clean_formula_text: function() {
-            this._formula_text = '';
-        },
-
-        /**
-         * Return a valid formula from a val, if possible.
-         Otherwise, return false.
-         */
-        _get_valid_expression: function(val) {
-            // Trim the value
-            currenttxt = val.toString().replace(/^\s+|\s+$/g, '');
-            // Test if the value is a formula
-            if (currenttxt[0] == '=') {
-                // allowed chars : [0-9] .,+-/*() and spaces
-                myreg = RegExp('[0-9]|\\s|\\.|,|\\(|\\)|\\+|\\-|\\*|\\/','g')
-                // Test to avoid code injonction in eval function.
-                if (currenttxt.substring(1).replace(myreg, '') == ''){
-                    try {
-                        // Try to compute
-                        formula = currenttxt.substring(1).replace(/,/g,'.');
-                        var floatval = eval(formula);
-                    }catch (e) {}
-                    if (typeof (floatval) != 'undefined'){
-                        return formula;
-                    }
-                }
-            }
-            return false;
-        },
-
-        /**
-         * test if the content of the field is a valid formula, 
-         * compute the result, and replace the current value by the final result.
-         */
-        _compute_result: function() {
-            var formula
-            // Erase old formula
-            this._formula_text = '';
-            
-            formula = this._get_valid_expression(this.$el.find('input').attr('value'));
-            if (formula){
-                // Store new formula
-                this._formula_text = "=" + formula;
-                // put the result in the field
-                this.set_value(eval(formula));
-                // Force rendering anyway to avoid format loss if no change
-                this.render_value();
-            }
-        },
-
-        /**
-         * Display the stored formula in the field, to allow modification.
-         */
-        _display_formula: function() {
-            if (this._formula_text != ''){
-                this.$el.find('input').val(this._formula_text);
-            }
-        },
-
-    });
-};

web_widget_float_formula/static/src/js/web_widget_float_formula.js

@@ -0,0 +1,103 @@
+/**
+*    Copyright GRAP
+*    Copyright 2016 LasLabs Inc.
+*    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+**/
+
+odoo.define('web_widget_float_formula', function(require) {
+    "use strict";
+
+    var form_view = require('web.FormView');
+    form_view.include({
+        // Ensure that formula is computed even if user saves right away and 
+        // clean up '_formula_text' value to avoid bugs in tree view
+        _process_save: function(save_obj) {
+            for (var f in this.fields) {
+                if (!this.fields.hasOwnProperty(f)) { continue; }
+                f = this.fields[f];
+                if (f.hasOwnProperty('_formula_text')) {
+                    f._compute_result();
+                    f._clean_formula_text();
+                }
+            }
+
+            return this._super(save_obj);
+        },
+    });
+
+    var core = require('web.core');
+    core.bus.on('web_client_ready', null, function () {
+        // Import localization values used to eval formula 
+        var translation_params = core._t.database.parameters;
+        var decimal_point = translation_params.decimal_point;
+        var thousands_sep = translation_params.thousands_sep;
+
+        var field_float = require('web.form_widgets').FieldFloat;
+        field_float.include({
+            start: function() {
+                this.on('blurred', this, this._compute_result);
+                this.on('focused', this, this._display_formula);
+                return this._super();
+            },
+
+            initialize_content: function() {
+                this._clean_formula_text();
+                return this._super();
+            },
+
+            _formula_text: '',
+
+            _clean_formula_text: function() {
+                this._formula_text = '';
+            },
+
+            _process_formula: function(formula) {
+                var clean_formula = formula.toString().replace(/^\s+|\s+$/g, '');
+                if (clean_formula[0] == '=') {
+                    clean_formula = clean_formula.substring(1);
+                    var myreg = RegExp('[0-9]|\\s|\\.|,|\\(|\\)|\\+|\\-|\\*|\\/','g');
+                    if (clean_formula.replace(myreg, '') === '') {
+                        return clean_formula;
+                    }
+                }
+                return false;
+            },
+
+            _eval_formula: function(formula) {
+                var value;
+                formula = formula.replace(thousands_sep, '').replace(decimal_point, '.');
+                try {
+                    value = eval(formula);
+                } 
+                catch(e) {}
+
+                if (typeof value != 'undefined') {
+                    return value;
+                }
+                return false;
+            },
+
+            _compute_result: function() {
+                this._clean_formula_text();
+
+                var formula = this._process_formula(this.$el.find('input').val());
+                if (formula !== false) {
+                    var value = this._eval_formula(formula);
+                    if (value !== false) {
+                        this._formula_text = "=" + formula;
+                        this.set_value(value);
+                        // Force rendering to avoid format loss if there's no change
+                        this.render_value();
+                    }
+                }
+            },
+
+            // Display the formula stored in the field to allow modification
+            _display_formula: function() {
+                if (this._formula_text !== '') {
+                    this.$el.find('input').val(this._formula_text);
+                }
+            },
+        });
+    });
+});

web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js

@@ -0,0 +1,161 @@
+/**
+*    Copyright 2016 LasLabs Inc.
+*    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+**/
+
+odoo.define_section('web_widget_float_formula', ['web.form_common', 'web.form_widgets', 'web.core'], function(test) {
+    'use strict';
+
+    window.test_setup = function(self, form_common, form_widgets, core) {
+        core.bus.trigger('web_client_ready');
+        var field_manager = new form_common.DefaultFieldManager(null, {});
+        var filler = {'attrs': {}}; // Needed to instantiate FieldFloat 
+        self.field = new form_widgets.FieldFloat(field_manager, filler);
+        self.$element = $('<input>');
+        self.field.$el.append(self.$element);
+    };
+
+    test('Float fields should have a _formula_text property that defaults to an empty string',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.strictEqual(this.field._formula_text, '');
+    });
+
+    test('.initialize_content() on float fields should clear the _formula_text property',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field._formula_text = 'test';
+            this.field.initialize_content();
+
+            assert.strictEqual(this.field._formula_text, '');
+    });
+
+    test('._clean_formula_text() on float fields should clear the _formula_text property',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field._formula_text = 'test';
+            this.field._clean_formula_text();
+
+            assert.strictEqual(this.field._formula_text, '');
+    });
+
+    test('._process_formula() on float fields should return false when given invalid formulas',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.strictEqual(this.field._process_formula('2*3'), false);
+            assert.strictEqual(this.field._process_formula('=2*3a'), false);
+    });
+
+    test('._process_formula() on float fields should properly process a valid formula',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.strictEqual(this.field._process_formula(' =2*3\n'), '2*3');
+    });
+
+    test('._eval_formula() on float fields should properly evaluate a valid formula',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.equal(this.field._eval_formula('2*3'), 6);
+    });
+
+    test('._eval_formula() on float fields should properly handle alternative decimal points and thousands seps',
+        function(assert, form_common, form_widgets, core) {
+            var translation_params = core._t.database.parameters;
+            translation_params.decimal_point = ',';
+            translation_params.thousands_sep = '.';
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.equal(this.field._eval_formula('2.000*3,5'), 7000);
+    });
+
+    test('._eval_formula() on float fields should return false when given an input that evals to undefined',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.equal(this.field._eval_formula(''), false);
+    });
+
+    test('._eval_formula() on float fields should return false when given an input that cannot be evaluated',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+
+            assert.equal(this.field._eval_formula('*/'), false);
+    });
+
+    test('._compute_result() on float fields should always clean up _formula_text',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field._formula_text = 'test';
+            this.field._compute_result();
+
+            assert.strictEqual(this.field._formula_text, '');
+    });
+
+    test('._compute_result() should not change the value of the associated input when it is not a valid formula',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.$element.val('=2*3a');
+            this.field._compute_result();
+
+            assert.strictEqual(this.$element.val(), '=2*3a');
+    });
+
+    test('._compute_result() should not change the value of the associated input when it cannot be evaled',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.$element.val('=*/');
+            this.field._compute_result();
+
+            assert.strictEqual(this.$element.val(), '=*/');
+    });
+
+    test('._compute_result() should behave properly when the current value of the input element is a valid formula',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.$element.val('=2*3');
+            this.field._compute_result();
+
+            assert.equal(this.$element.val(), '6');
+            assert.strictEqual(this.field._formula_text, '=2*3');
+    });
+
+    test('._display_formula() should update the value of the input element when there is a stored formula',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field._formula_text = "test";
+            this.field._display_formula();
+
+            assert.equal(this.$element.val(), 'test');
+    });
+
+    test('.start() on float fields should add a handler that calls ._compute_result() when the field is blurred',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field.called = false;
+            this.field._compute_result = function() {
+                this.called = true;
+            };
+            this.field.start();
+            this.field.trigger('blurred');
+
+            assert.strictEqual(this.field.called, true);
+    });
+
+    test('.start() on float fields should add a handler that calls ._display_formula() when the field is focused',
+        function(assert, form_common, form_widgets, core) {
+            window.test_setup(this, form_common, form_widgets, core);
+            this.field.called = false;
+            this.field._display_formula = function() {
+                this.called = true;
+            };
+            this.field.start();
+            this.field.trigger('focused');
+
+            assert.strictEqual(this.field.called, true);
+    }); 
+ 
+});

web_widget_float_formula/tests/__init__.py

@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 LasLabs Inc.
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+from . import test_js

web_widget_float_formula/tests/test_js.py

@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+# Copyright 2016 LasLabs Inc.
+# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).
+
+from openerp.tests import HttpCase
+
+
+class TestJS(HttpCase):
+
+    def test_js(self):
+        self.phantom_js(
+            "/web/tests?module=web_widget_float_formula",
+            "",
+            login="admin",
+        )

web_widget_float_formula/views/qweb.xml

@@ -1,9 +0,0 @@
-<openerp>
-    <data>
-       <template id="assets_backend" name="web_widget_float_formula assets" inherit_id="web.assets_backend">
-            <xpath expr="." position="inside">
-                <script type="text/javascript" src="/web_widget_float_formula/static/src/js/models.js"></script>
-            </xpath>
-        </template>
-    </data>
-</openerp>

web_widget_float_formula/views/web_widget_float_formula.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+    Copyright GRAP
+    Copyright 2016 LasLabs Inc.
+    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+-->
+
+<odoo>
+   <template id="assets_backend" name="web_widget_float_formula Assets" inherit_id="web.assets_backend">
+        <xpath expr="." position="inside">
+            <script type="text/javascript" src="/web_widget_float_formula/static/src/js/web_widget_float_formula.js"/>
+        </xpath>
+    </template>
+
+    <template id="qunit_suite" name="web_widget_float_formula Test Assets" inherit_id="web.qunit_suite">
+        <xpath expr="//html/head" position="inside">
+            <script type="text/javascript" src="/web_widget_float_formula/static/tests/js/test_web_widget_float_formula.js"/>
+        </xpath>
+    </template>
+</odoo>