From: Aleksander Łukasz <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Thu, 20 Jun 2013 08:01:21 +0000 (+0200)
Subject: Experimenting with higher level canvas api
X-Git-Url: https://git.mdrn.pl/fnpeditor.git/commitdiff_plain/0f406b246f9261651b5982be71a49189349c8e3e?ds=inline

Experimenting with higher level canvas api
---

diff --git a/karma.conf.js b/karma.conf.js
index b6085cc..9f3fa53 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -6,6 +6,7 @@ files = [
   REQUIRE,
   REQUIRE_ADAPTER,
   
+  'vkbeautify.js',
   {pattern: 'libs/*.js', included: false},
   {pattern: 'fnpjs/**/*.js', included: false},
   {pattern: 'modules/**/*.js', included: false},
diff --git a/modules/documentCanvas/canvas.js b/modules/documentCanvas/canvas.js
new file mode 100644
index 0000000..2d364ac
--- /dev/null
+++ b/modules/documentCanvas/canvas.js
@@ -0,0 +1,135 @@
+define([
+'libs/jquery-1.9.1.min',
+'libs/underscore-min',
+'modules/documentCanvas/transformations',
+'modules/documentCanvas/wlxmlNode',
+'libs/text!./template.html'
+], function($, _, transformations, wlxmlNode, template) {
+
+'use strict';
+
+var Canvas = function(xml) {
+    this.xml = xml;
+    this.dom = $(template);
+    
+    this.content = this.dom.find('#rng-module-documentCanvas-content')
+    
+    
+    this.content.html(transformations.fromXML.getHTMLTree(xml));
+}
+
+Canvas.prototype.toXML = function() {
+    return transformations.toXML.getXML(this.content.html());
+}
+
+Canvas.prototype.getNode = function(desc) {
+    var selector = '';
+    if(desc.klass)
+        selector += '[wlxml-class=' + desc.klass + ']';
+    if(desc.tag)
+        selector += '[wlxml-tag=' + desc.tag + ']';
+    var toret = [];
+    this.content.find(selector).each(function() {
+        toret.push(new wlxmlNode.Node($(this)));
+    });
+    return toret;
+}
+
+Canvas.prototype._createNode = function(wlxmlTag, wlxmlClass) {
+            var toBlock = ['div', 'document', 'section', 'header'];
+            var htmlTag = _.contains(toBlock, wlxmlTag) ? 'div' : 'span';
+            var toret = $('<' + htmlTag + '>');
+            toret.attr('wlxml-tag', wlxmlTag);
+            if(wlxmlClass)
+                toret.attr('wlxml-class', wlxmlClass);
+            toret.attr('id', 'xxxxxxxx-xxxx-xxxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {var r = Math.random()*16|0,v=c=='x'?r:r&0x3|0x8;return v.toString(16);}));
+            return toret;
+        };
+
+Canvas.prototype.insertNode = function(options) {
+    var element = $(this.content.find('#' + options.context.id).get(0));
+    if(options.place == 'after')
+        element[options.place](this._createNode(options.tag, options.klass));
+    else if(options.place == 'wrapText') {
+        var elementContents = element.contents();
+        if(elementContents.length !== 1 || elementContents.get(0).nodeType != 3)
+            return false;
+        var textElement = elementContents.get(0);
+
+        var prefix = textElement.data.substr(0, options.offsetStart);
+        var suffix = textElement.data.substr(options.offsetEnd);
+        var core = textElement.data.substr(options.offsetStart, options.offsetEnd - options.offsetStart);
+        var newNode = this._createNode(options.tag, options.klass);
+        newNode.text(core);
+        $(textElement).replaceWith(newNode);
+        newNode.before(prefix);
+        newNode.after(suffix);
+    }
+}
+
+Canvas.prototype.splitNode = function(options) {
+    var element = $(this.content.find('#' + options.node.id).get(0));
+    
+    var elementContents = element.contents();
+    if(elementContents.length !== 1 || elementContents.get(0).nodeType != 3)
+        return false;
+    var textElement = elementContents.get(0);
+    
+    var prefix = textElement.data.substr(0, options.offset);
+    var suffix = textElement.data.substr(options.offset);
+    var prefixNode = this._createNode(element.attr('wlxml-tag'), element.attr('wlxml-class'));
+    var suffixNode = this._createNode(element.attr('wlxml-tag'), element.attr('wlxml-class'));
+    prefixNode.text(prefix);
+    suffixNode.text(suffix);
+    element.before(prefixNode);
+    element.after(suffixNode);
+    element.remove();
+}
+
+Canvas.prototype.createList = function(options) {
+    var element1 = $(this.content.find('#' + options.start.id).get(0));
+    var element2 = $(this.content.find('#' + options.end.id).get(0));
+    if(!element1.parent().get(0).isSameNode(element2.parent().get(0)))
+        return false;
+        
+    var parent = element1.parent();
+    var nodesToWrap = [];
+    
+    var place = 'before';
+    var canvas = this;
+    parent.contents().each(function() {
+        var node = this;
+        if(node.isSameNode(element1.get(0)))
+            place = 'inside';
+        if(place === 'inside') {
+            var $node;
+            if(node.nodeType === 3) {
+                $node = canvas._createNode('div').text(node.data);
+                $(node).remove();
+            }
+            else {
+                $node = $(node);
+            }
+            $node.attr('wlxml-class', 'list.item');
+            nodesToWrap.push($node);
+        }
+        if(node.isSameNode(element2.get(0)))
+            return;
+    });
+    
+    var list = this._createNode('div', 'list');
+    element1.before(list);
+    
+    nodesToWrap.forEach(function(node) {
+        node.remove();
+        list.append(node);
+    });
+    
+    
+    
+}
+
+
+return {Canvas: Canvas, Node: Node};
+
+});
\ No newline at end of file
diff --git a/modules/documentCanvas/tests/canvas.test.js b/modules/documentCanvas/tests/canvas.test.js
new file mode 100644
index 0000000..386e375
--- /dev/null
+++ b/modules/documentCanvas/tests/canvas.test.js
@@ -0,0 +1,103 @@
+define([
+'libs/jquery-1.9.1.min',
+'libs/chai', 
+'./utils.js',
+'modules/documentCanvas/canvas'
+], function($, chai, utils, canvas) {
+
+    'use strict';
+
+    var assert = chai.assert;
+    
+    assert.xmlEqual = function(lhsText, rhsText) {
+        var cleanLhs = utils.cleanUp(lhsText);
+        var cleanRhs = utils.cleanUp(rhsText);
+        
+        var lhs = $(cleanLhs);
+        var rhs = $(cleanRhs);
+        
+        this.equal(lhs.length, 1);
+        this.equal(rhs.length, 1);
+        
+        lhs = lhs.get(0);
+        rhs = rhs.get(0);
+        
+        var test = lhs.isEqualNode(rhs);
+        if(!test) {
+            console.log(cleanLhs);
+            console.log(cleanRhs);    
+        }
+        return this.ok(test, 'xmls are equal');
+    };
+    
+    var retrievingTest = function(title, xml) {
+        test(title, function() {
+            var c = new canvas.Canvas(xml);
+            assert.xmlEqual(c.toXML(), xml);    
+        });
+    };
+    
+    suite('Basic document retrieving', function() {
+        test('empty document', function() {
+            var c = new canvas.Canvas('');
+            assert.equal(c.toXML(), '');
+        });
+        retrievingTest('empty tag', '<section></section>');
+        retrievingTest('tag with content', '<section>Some text</section>');
+        retrievingTest('tag with class', '<section class="some.class"></section>');
+    });
+    
+    suite('Nodes', function() {
+        test('getting nodes via selector', function() {
+            var c = new canvas.Canvas('<section><header class="some.class">Header 1</header></section>');
+            var header = c.getNode({tag: 'header'})[0];
+            assert.equal(header.tag, 'header');
+            assert.equal(header.klass, 'some-class');
+        });
+    
+        test('inserting after', function() {
+            var c = new canvas.Canvas('<section><header>Header 1</header></section>');
+            var header = c.getNode({tag: 'header'})[0];
+            c.insertNode({place: 'after', context: header, tag: 'div', klass: 'some.class'});
+            assert.xmlEqual(c.toXML(), '<section><header>Header 1</header><div class="some.class"></div></section>');
+        });
+        
+        test('wrap text in node', function() {
+            var c = new canvas.Canvas('<section><header>Header 1</header></section>');
+            var header = c.getNode({tag: 'header'})[0];
+            c.insertNode({place: 'wrapText', context: header, tag: 'span', klass: 'url', offsetStart: 1, offsetEnd: 6});
+            assert.xmlEqual(c.toXML(), '<section><header>H<span class="url">eader</span> 1</header></section>');
+        });
+        
+        test('split node', function() {
+            var c = new canvas.Canvas('<section><header class="some.class">Header 1</header></section>');
+            var header = c.getNode({tag: 'header'})[0];
+            c.splitNode({node: header, offset: 4});
+            assert.xmlEqual(c.toXML(), '\
+                <section> \
+                    <header class="some.class">Head</header>\
+                    <header class="some.class">er 1</header>\
+                </section>'
+            );
+        });
+        
+        test('list', function() {
+            var c = new canvas.Canvas('<section><div>Alice</div>has<div>a cat</div></section>');
+            var div1 = c.getNode({tag:'div'})[0];
+            var div2 = c.getNode({tag:'div'})[1];
+            
+            c.createList({start: div1, end: div2});
+            
+            assert.xmlEqual(c.toXML(), '\
+                <section>\
+                    <div class="list">\
+                        <div class="list.item">Alice</div>\
+                        <div class="list.item">has</div>\
+                        <div class="list.item">a cat</div>\
+                    </div>\
+                </section>');
+            
+        });
+    });
+
+});
\ No newline at end of file
diff --git a/modules/documentCanvas/tests/utils.js b/modules/documentCanvas/tests/utils.js
new file mode 100644
index 0000000..e23808c
--- /dev/null
+++ b/modules/documentCanvas/tests/utils.js
@@ -0,0 +1,29 @@
+define(['libs/jquery-1.9.1.min'], function($) {
+    return {
+        cleanUp: function(xml) {
+            
+            var rmws = function(node) {
+                if(node.nodeType === 3) {
+                    node.data = $.trim(node.data);
+                }
+                else {
+                    $(node).contents().each(function() {
+                        rmws(this);
+                    });
+                }
+            }
+            
+            xml = $($.trim(xml));
+            xml.each(function() {
+                rmws(this);
+            });
+            
+            /*var toret = xml
+                .replace(/(<.*>)\s*(<.*>)/gm, '$1$2')
+                .replace(/(<\/.*>)\s*(<\/.*>)/gm, '$1$2')
+                .replace(/(<\/.*>)\s*(<.*>)/gm, '$1$2');
+            return $.trim(toret);*/
+            return $('<div>').append(xml).html();
+        }
+    }
+});
\ No newline at end of file
diff --git a/modules/documentCanvas/tests/utils.test.js b/modules/documentCanvas/tests/utils.test.js
new file mode 100644
index 0000000..d25b3d3
--- /dev/null
+++ b/modules/documentCanvas/tests/utils.test.js
@@ -0,0 +1,29 @@
+define(['libs/chai', './utils.js'], function(chai, utils) {
+
+'use strict';
+var assert = chai.assert;
+
+test('open+open', function() {
+    assert.equal(utils.cleanUp('<div class="class"> \n <div class="class"></div></div>'), '<div class="class"><div class="class"></div></div>');
+})
+
+test('close+close', function() {
+    assert.equal(utils.cleanUp('<div><div></div>\n </div>'), '<div><div></div></div>');
+})
+
+test('close+open', function() {
+    assert.equal(utils.cleanUp('<div></div>\n <div class="class"></div>'), '<div></div><div class="class"></div>');
+})
+
+test('bug', function() {
+    var txt = '\
+                <section> \
+                    <header class="some.class">Head</header>\
+                    <header class="some.class">er 1</header>\
+                </section>'
+    var txt2 = '<section><header class="some.class">Head</header><header class="some.class">er 1</header></section>';
+    assert.equal(utils.cleanUp(txt), txt2); 
+});
+
+
+});
\ No newline at end of file
diff --git a/tests/main.js b/tests/main.js
index 8a093d9..9614d72 100644
--- a/tests/main.js
+++ b/tests/main.js
@@ -9,7 +9,22 @@
     require({
       baseUrl: '/base/',
       deps: tests,
-      callback: window.__karma__.start
+      callback: window.__karma__.start,
+        shim: {
+            'libs/jquery-1.9.1.min': {
+                exports: '$',
+            },
+            'libs/underscore-min': {
+                exports: '_'
+            },
+            'libs/bootstrap/js/bootstrap.min': {
+                deps: ['libs/jquery-1.9.1.min']
+            },
+            'libs/backbone-min': {
+                exports: 'Backbone',
+                deps: ['libs/jquery-1.9.1.min', 'libs/underscore-min']
+            }
+        }
     });
 
 })();
\ No newline at end of file