wip: experiments with Canvas support for exercise.assign

[fnpeditor.git] / src / editor / modules / documentCanvas / canvas / documentElement.js

diff --git a/src/editor/modules/documentCanvas/canvas/documentElement.js b/src/editor/modules/documentCanvas/canvas/documentElement.js
index 570973e..c53f562 100644 (file)
--- a/src/editor/modules/documentCanvas/canvas/documentElement.js
+++ b/src/editor/modules/documentCanvas/canvas/documentElement.js
@@ -1,15 +1,20 @@
 define([
 'libs/jquery',
 'libs/underscore',
 define([
 'libs/jquery',
 'libs/underscore',

-'modules/documentCanvas/canvas/utils'
-], function($, _, utils) {
+'modules/documentCanvas/canvas/utils',
+'modules/documentCanvas/canvas/container'
+], function($, _, utils, container) {

     
 'use strict';
 /* global Node:false */
 
 // DocumentElement represents a text or an element node from WLXML document rendered inside Canvas
     
 'use strict';
 /* global Node:false */
 
 // DocumentElement represents a text or an element node from WLXML document rendered inside Canvas

-var DocumentElement = function(wlxmlNode, canvas) {
+var DocumentElement = function(wlxmlNode, canvas, params) {
+    params = params || {
+        mirror: false
+    };

     this.wlxmlNode = wlxmlNode;
     this.wlxmlNode = wlxmlNode;

+    this.mirror = params.mirror;

     this.canvas = canvas;
     this.state = {
         exposed: false,
     this.canvas = canvas;
     this.state = {
         exposed: false,


@@ -18,6 +23,17 @@ var DocumentElement = function(wlxmlNode, canvas) {
 
     this.dom = this.createDOM();
     this.dom.data('canvas-element', this);
 
     this.dom = this.createDOM();
     this.dom.data('canvas-element', this);

+    
+    var mirrorElements = this.wlxmlNode.getData('mirrorElements');
+    if(!mirrorElements) {
+        mirrorElements = [];
+        this.wlxmlNode.setData('mirrorElements', mirrorElements);
+    }
+    if(params.mirror) {
+        mirrorElements.push(this);
+    } else {
+        this.wlxmlNode.setData('canvasElement', this);    
+    }

 };
 
 $.extend(DocumentElement.prototype, {
 };
 
 $.extend(DocumentElement.prototype, {


@@ -43,6 +59,17 @@ $.extend(DocumentElement.prototype, {
             }.bind(this));
         if(_.isFunction(this.onStateChange)) {
             this.onStateChange(changes);
             }.bind(this));
         if(_.isFunction(this.onStateChange)) {
             this.onStateChange(changes);

+            if(_.isBoolean(changes.active)) {
+                if(changes.active) {
+                    var ptr = this;
+                    while(ptr && ptr.wlxmlNode.getTagName() === 'span') {
+                        ptr = ptr.parent();
+                    }
+                    if(ptr && ptr.gutterGroup) {
+                        ptr.gutterGroup.show();
+                    }
+                }
+            }

         }
     },
     parent: function() {
         }
     },
     parent: function() {


@@ -66,6 +93,9 @@ $.extend(DocumentElement.prototype, {
     sameNode: function(other) {
         return other && (typeof other === typeof this) && other.dom[0] === this.dom[0];
     },
     sameNode: function(other) {
         return other && (typeof other === typeof this) && other.dom[0] === this.dom[0];
     },

+    isRootElement: function() {
+        return this.sameNode(this.canvas.rootElement);
+    },

 
     trigger: function() {
         this.canvas.eventBus.trigger.apply(this.canvas.eventBus, Array.prototype.slice.call(arguments, 0));
 
     trigger: function() {
         this.canvas.eventBus.trigger.apply(this.canvas.eventBus, Array.prototype.slice.call(arguments, 0));


@@ -76,19 +106,21 @@ $.extend(DocumentElement.prototype, {
 
 
 // DocumentNodeElement represents an element node from WLXML document rendered inside Canvas
 
 
 // DocumentNodeElement represents an element node from WLXML document rendered inside Canvas

-var DocumentNodeElement = function(wlxmlNode, canvas) {
-    DocumentElement.call(this, wlxmlNode, canvas);
-    wlxmlNode.setData('canvasElement', this);
+var DocumentNodeElement = function(wlxmlNode, canvas, params) {
+    DocumentElement.call(this, wlxmlNode, canvas, params);
+    this.containers = [];
+    this.elementsRegister = canvas.createElementsRegister();
+    this.contextMenuActions = [];

     this.init(this.dom);
 };
 
 
     this.init(this.dom);
 };
 
 

-var manipulate = function(e, params, action) {
+var manipulate = function(e, params, action, params2) {

     var element;
     if(params instanceof DocumentElement) {
         element = params;
     } else {
     var element;
     if(params instanceof DocumentElement) {
         element = params;
     } else {

-        element = e.canvas.createElement(params);
+        element = e.createElement(params, params2);

     }
     if(element.dom) {
         e.dom[action](element.dom);
     }
     if(element.dom) {
         e.dom[action](element.dom);


@@ -109,17 +141,60 @@ $.extend(DocumentNodeElement.prototype, {
     clearWidgets: function() {
         this.dom.children('.canvas-widgets').empty();
     },
     clearWidgets: function() {
         this.dom.children('.canvas-widgets').empty();
     },

+    addToGutter: function(view) {
+        if(!this.gutterGroup) {
+            this.gutterGroup = this.canvas.gutter.createViewGroup({
+                offsetHint: function() {
+                    return this.canvas.getElementOffset(this);
+                }.bind(this)
+            }, this);
+        }
+        this.gutterGroup.addView(view);
+    },
+    createContainer: function(nodes, params) {
+        var toret = container.create(nodes, params, this);
+        this.containers.push(toret);
+        return toret;
+    },
+    removeContainer: function(container) {
+        var idx;
+        if((idx = this.containers.indexOf(container)) !== -1) {
+            this.containers.splice(idx, 1);
+        }
+    },
+    createElement: function(wlxmlNode, params) {
+        params = params || {mirror: false};
+        var parent = this.wlxmlNode.parent() ? utils.getElementForNode(this.wlxmlNode.parent()) : null;
+        return this.canvas.createElement(wlxmlNode, this.elementsRegister, !parent, params) || parent.createElement(wlxmlNode, params);
+    },
+    addToContextMenu: function(actionFqName) {
+        this.contextMenuActions.push(this.canvas.createAction(actionFqName));
+    },

     handle: function(event) {
     handle: function(event) {

-        var method = 'on' + event.type[0].toUpperCase() + event.type.substr(1);
-        if(this[method]) {
+        var method = 'on' + event.type[0].toUpperCase() + event.type.substr(1),
+            containerExisted = false;
+        if(event.type === 'nodeAdded' || event.type === 'nodeDetached') {
+            this.containers.some(function(container) {
+                if(container.manages(event.meta.node, event.meta.parent)) {
+                    //target = container;
+                    container[method](event);
+                    containerExisted = true;
+                }
+            });
+        }
+        
+        if(!containerExisted && this[method]) {

             this[method](event);
         }
             this[method](event);
         }

+        
+        // if(target) {
+        //     target[method](event);
+        // }

     },
     createDOM: function() {
         var wrapper = $('<div>').attr('document-node-element', ''),
             widgetsContainer = $('<div>')
     },
     createDOM: function() {
         var wrapper = $('<div>').attr('document-node-element', ''),
             widgetsContainer = $('<div>')

-                .addClass('canvas-widgets')
-                .attr('contenteditable', false),
+                .addClass('canvas-widgets'),

             contentContainer = $('<div>')
                 .attr('document-element-content', '');
         
             contentContainer = $('<div>')
                 .attr('document-element-content', '');
         


@@ -130,20 +205,33 @@ $.extend(DocumentNodeElement.prototype, {
     _container: function() {
         return this.dom.children('[document-element-content]');
     },
     _container: function() {
         return this.dom.children('[document-element-content]');
     },

-    detach: function() {
-        var parents = this.parents();
-        this.dom.detach();
-        if(parents[0]) {
-            parents[0].refreshPath();
+    detach: function(isChild) {
+        var parents;
+
+        if(this.gutterGroup) {
+            this.gutterGroup.remove();

         }
         }

-         return this;
+        if(_.isFunction(this.children)) {
+            this.children().forEach(function(child) {
+                child.detach(true);
+            });
+        }
+
+        if(!isChild) {
+            parents = this.parents();
+            this.dom.detach();
+            if(parents[0]) {
+                parents[0].refreshPath();
+            }
+        }
+        return this;

     },
     },

-    before: function(params) {
-        return manipulate(this, params, 'before');
+    before: function(params, params2) {
+        return manipulate(this, params, 'before', params2);

 
     },
 
     },

-    after: function(params) {
-        return manipulate(this, params, 'after');
+    after: function(params, params2) {
+        return manipulate(this, params, 'after', params2);

     },
 
     isBlock: function() {
     },
 
     isBlock: function() {


@@ -169,13 +257,16 @@ $.extend(DocumentNodeElement.prototype, {
         // })
         this.dom.css('display', what);
         this._container().css('display', what);
         // })
         this.dom.css('display', what);
         this._container().css('display', what);

+    },
+    children: function() {
+        return [];

     }
 });
 
 
 // DocumentNodeElement represents a text node from WLXML document rendered inside Canvas
     }
 });
 
 
 // DocumentNodeElement represents a text node from WLXML document rendered inside Canvas

-var DocumentTextElement = function(wlxmlTextNode, canvas) {
-    DocumentElement.call(this, wlxmlTextNode, canvas);
+var DocumentTextElement = function(wlxmlTextNode, canvas, params) {
+    DocumentElement.call(this, wlxmlTextNode, canvas, params);

 };
 
 $.extend(DocumentTextElement, {
 };
 
 $.extend(DocumentTextElement, {


@@ -193,8 +284,10 @@ $.extend(DocumentTextElement.prototype, {
             .text(this.wlxmlNode.getText() || utils.unicode.ZWS);
         return dom;
     },
             .text(this.wlxmlNode.getText() || utils.unicode.ZWS);
         return dom;
     },

-    detach: function() {
-        this.dom.detach();
+    detach: function(isChild) {
+        if(!isChild) {
+            this.dom.detach();
+        }

         return this;
     },
     setText: function(text) {
         return this;
     },
     setText: function(text) {


@@ -205,6 +298,9 @@ $.extend(DocumentTextElement.prototype, {
             this.dom.contents()[0].data = text;
         }
     },
             this.dom.contents()[0].data = text;
         }
     },

+    handle: function(event) {
+        this.setText(event.meta.node.getText());
+    },

     getText: function(options) {
         options = _.extend({raw: false}, options || {});
         var toret = this.dom.text();
     getText: function(options) {
         options = _.extend({raw: false}, options || {});
         var toret = this.dom.text();


@@ -217,7 +313,7 @@ $.extend(DocumentTextElement.prototype, {
         // Having at least Zero Width Space is guaranteed be Content Observer
         return this.dom.contents()[0].data === utils.unicode.ZWS;
     },
         // Having at least Zero Width Space is guaranteed be Content Observer
         return this.dom.contents()[0].data === utils.unicode.ZWS;
     },

-    after: function(params) {
+    after: function(params, params2) {

         if(params instanceof DocumentTextElement || params.text) {
             return false;
         }
         if(params instanceof DocumentTextElement || params.text) {
             return false;
         }


@@ -225,7 +321,7 @@ $.extend(DocumentTextElement.prototype, {
         if(params instanceof DocumentNodeElement) {
             element = params;
         } else {
         if(params instanceof DocumentNodeElement) {
             element = params;
         } else {

-            element = this.canvas.createElement(params);
+            element = this.parent().createElement(params, params2);

         }
         if(element.dom) {
             this.dom.wrap('<div>');
         }
         if(element.dom) {
             this.dom.wrap('<div>');


@@ -243,7 +339,7 @@ $.extend(DocumentTextElement.prototype, {
         if(params instanceof DocumentNodeElement) {
             element = params;
         } else {
         if(params instanceof DocumentNodeElement) {
             element = params;
         } else {

-            element = this.canvas.createElement(params);
+            element = this.createElement(params);

         }
         if(element.dom) {
             this.dom.wrap('<div>');
         }
         if(element.dom) {
             this.dom.wrap('<div>');