Add NaFieldStyler

* src/ui/styler/NaFieldStyler.js: Added
* test/ui/styler/NaFieldStylerTest.js: Added

src/ui/styler/NaFieldStyler.js

@@ -0,0 +1,84 @@
+/**
+ * N/A field styler
+ *
+ *  Copyright (C) 2016 LoVullo Associates, Inc.
+ *
+ *  This file is part of liza.
+ *
+ *  liza is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+var Class       = require( 'easejs' ).Class,
+    FieldStyler = require( './FieldStyler' );
+
+
+/**
+ * Style fields that are not applicable (and so do not need to collect data
+ * from the user)
+ */
+module.exports = Class( 'NaFieldStyler' )
+    .extend( FieldStyler,
+{
+    /**
+     * Retrieve unique identifier
+     *
+     * @return {string} unique identifier
+     */
+    'public getId': function()
+    {
+        return 'na';
+    },
+
+
+    /**
+     * Apply style to field
+     *
+     * @param {DomField}            field   field to style
+     * @param {HTMLElement}         element DOM element to style
+     * @param {Array.<HTMLElement>} row     DOM elements of containing row
+     *
+     * @return {FieldStyler} self
+     */
+    'public applyStyle': function( field, element, row )
+    {
+        this.addClass( element, 'hidden' );
+
+        // this is a workaround from the old days where jQuery would add
+        // styles to hide elements, which we wanted to override; this can be
+        // removed once jQuery is eradicated from the framework
+        element.style = '';
+
+        for ( var i in row )
+        {
+            this.addClass( row[ i ], 'hidden' );
+            row[ i ].style = '';
+        }
+    },
+
+
+    /**
+     * Remove style from field
+     *
+     * @param {DomField}            field   field to unstyle
+     * @param {HTMLElement}         element DOM element to unstyle
+     * @param {Array.<HTMLElement>} row     DOM elements of containing row
+     *
+     * @return {FieldStyler} self
+     */
+    'public revokeStyle': function( field, element, row )
+    {
+        this.removeClass( element, 'hidden' );
+        this.removeClass( row, 'hidden' );
+    }
+} );

test/ui/styler/NaFieldStylerTest.js

@@ -0,0 +1,108 @@
+/**
+ * Test case for NaFieldStyler
+ *
+ *  Copyright (C) 2016 LoVullo Associates, Inc.
+ *
+ *  This file is part of the Liza Data Collection Framework
+ *
+ *  Liza is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+var styler  = require( '../../../' ).ui.styler,
+    expect  = require( 'chai' ).expect,
+    Class   = require( 'easejs' ).Class,
+    Sut     = styler.NaFieldStyler;
+
+
+describe( 'ui.styler.NaFieldStyler', function()
+{
+    describe( '#getId', function()
+    {
+        it( 'returns unique identifier', function()
+        {
+            expect( Sut().getId() ).to.equal( 'na' );
+        } );
+    } );
+
+
+    describe( '#applyStyle', function()
+    {
+        it( 'sets hidden class on all elements', function()
+        {
+            var element = { className: '' },
+                r1      = { className: '' },
+                r2      = { className: '' },
+                row     = [ r1, r2 ];
+
+            Sut().applyStyle( {}, element, row );
+
+            [ element, r1, r2 ].forEach( function( ele )
+            {
+                expect( ele.className ).to.match( /\bhidden\b/ );
+            } );
+        } );
+
+
+        it( 'clears style on all elements', function()
+        {
+            var element = { style: 'foo' },
+                r1      = { style: 'foo' },
+                r2      = { style: 'foo' },
+                row     = [ r1, r2 ];
+
+            Sut().applyStyle( {}, element, row );
+
+            [ element, r1, r2 ].forEach( function( ele )
+            {
+                expect( ele.style ).to.equal( '' );
+            } );
+        } );
+    } );
+
+
+    describe( '#revokeStyle', function()
+    {
+        it( 'removes hidden class on all elements', function()
+        {
+            var element = { className: 'foo hidden' },
+                r1      = { className: 'foo hidden' },
+                r2      = { className: 'foo hidden' },
+                row     = [ r1, r2 ];
+
+            Sut().revokeStyle( {}, element, row );
+
+            [ element, r1, r2 ].forEach( function( ele )
+            {
+                expect( ele.className ).to.not.match( /\bhidden\b/ );
+                expect( ele.className ).to.match( /foo/ );
+            } );
+        } );
+
+
+        it( 'does not clear style on all elements', function()
+        {
+            var element = { style: 'foo' },
+                r1      = { style: 'foo' },
+                r2      = { style: 'foo' },
+                row     = [ r1, r2 ];
+
+            Sut().revokeStyle( {}, element, row );
+
+            [ element, r1, r2 ].forEach( function( ele )
+            {
+                expect( ele.style ).to.equal( 'foo' );
+            } );
+        } );
+    } );
+} );