From: Aleksander Łukasz <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Fri, 25 Jul 2014 08:19:14 +0000 (+0200)
Subject: editor: canvas containers
X-Git-Url: https://git.mdrn.pl/fnpeditor.git/commitdiff_plain/5d2695bd243591aa1697733184d07cdb3e67cf74

editor: canvas containers
---

diff --git a/src/editor/modules/documentCanvas/canvas/container.js b/src/editor/modules/documentCanvas/canvas/container.js
new file mode 100644
index 0000000..6436526
--- /dev/null
+++ b/src/editor/modules/documentCanvas/canvas/container.js
@@ -0,0 +1,158 @@
+define(function(require) {
+    
+'use strict';
+
+var $ = require('libs/jquery'),
+    _ = require('libs/underscore'),
+    utils = require('./utils');
+
+
+var Container = function(nodes, params, element) {
+    _.extend(this, params);
+    this.dom = this.dom || $('<div>');
+    this.dom.addClass('canvas-container');
+    this.element = element;
+
+    nodes.forEach(function(node) {
+        var el = this.element.canvas.createElement(node);
+        if(el.dom) {
+            this.dom.append(el.dom);
+        }
+    }.bind(this));
+};
+
+_.extend(Container.prototype, {
+    remove: function() {
+        this.element.removeContainer(this);
+    },
+
+    onNodeAdded: function(event) {
+        if(event.meta.node.isRoot()) {
+            this.element.canvas.reloadRoot();//
+            return;
+        }
+
+        var ptr = event.meta.node.prev(),
+            referenceElement, referenceAction, actionArg;
+            
+        while(ptr && !(referenceElement = utils.getElementForElementRootNode(ptr))) {
+            ptr = ptr.prev();
+        }
+
+        if(referenceElement) {
+            referenceAction = 'after';
+        } else {
+            referenceElement = this;
+            referenceAction = '_prepend';
+        }
+      
+        if(event.meta.move) {
+            /* Let's check if this node had its own canvas element and it's accessible. */
+            actionArg = utils.getElementForElementRootNode(event.meta.node);
+        }
+        if(!actionArg) {
+            actionArg = event.meta.node;
+        }
+
+        referenceElement[referenceAction](actionArg);
+    },
+    onNodeDetached: function(event) {
+        var container = this;
+        this.dom.contents().each(function() {
+            var childElement = container.element.canvas.getDocumentElement(this);
+            if(childElement && childElement.wlxmlNode.sameNode(event.meta.node)) {
+                childElement.detach();
+                return false;
+            }
+        });
+    },
+    getVerticallyFirstTextElement: function(params) {
+        var documentElement = require('./documentElement'),
+            toret;
+        
+        params = _.extend({
+            considerChildren: true
+        }, params);
+        
+        this.children().some(function(child) {
+            if(child instanceof documentElement.DocumentTextElement) {
+                toret = child;
+                return true; // break
+            } else if(params.considerChildren) {
+                toret = child.getVerticallyFirstTextElement();
+                if(toret) {
+                    return true; // break
+                }
+            }
+        });
+        return toret;
+    },
+    getFirst: function(e1, e2) {
+        var idx1 = this._childIndex(e1),
+            idx2 = this._childIndex(e2);
+        if(e1 === null || e2 === null) {
+            return undefined;
+        }
+        return idx1 <= idx2 ? e1: e2;
+    },
+
+    _prepend: function(param) {
+        var documentElement = require('./documentElement'),
+            element;
+        if(param instanceof documentElement.DocumentElement) {
+            element = param;
+        } else {
+            element = this.element.canvas.createElement(param);//
+        }
+        if(element.dom) {
+            this.dom.prepend(element.dom);
+        }
+        return element;
+    },
+    _childIndex: function(child) {
+        var children = this.children(),
+            toret = null;
+        children.forEach(function(c, idx) {
+            if(c.sameNode(child)) {
+                toret = idx;
+                return false;
+            }
+        });
+        return toret;
+    },
+    containsBlock: function() {
+        var documentElement = require('./documentElement');
+        return this.children()
+            .filter(function(child) {
+                return child instanceof documentElement.DocumentNodeElement;
+            })
+            .some(function(child) {
+                if(child.isBlock()) {
+                    return true;
+                } else {
+                    return child.containsBlock();
+                }
+            });
+    },
+    children: function() {
+        var element = this.element.canvas,
+            toret = [];
+        this.dom.contents().each(function() {
+            var childElement = element.getDocumentElement(this);
+            if(childElement === undefined) {
+                return true;
+            }
+
+            toret.push(childElement);
+        });
+        return toret;
+    },
+});
+
+return {
+    create: function(nodes, params, element) {
+        return new Container(nodes, params, element);
+    }
+};
+
+});
\ No newline at end of file
diff --git a/src/editor/modules/documentCanvas/canvas/documentElement.js b/src/editor/modules/documentCanvas/canvas/documentElement.js
index 7bbc5c1..859a80b 100644
--- a/src/editor/modules/documentCanvas/canvas/documentElement.js
+++ b/src/editor/modules/documentCanvas/canvas/documentElement.js
@@ -1,8 +1,9 @@
 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 */
@@ -93,6 +94,7 @@ $.extend(DocumentElement.prototype, {
 // DocumentNodeElement represents an element node from WLXML document rendered inside Canvas
 var DocumentNodeElement = function(wlxmlNode, canvas) {
     DocumentElement.call(this, wlxmlNode, canvas);
+    this.containers = [];
     this.init(this.dom);
 };
 
@@ -133,10 +135,35 @@ $.extend(DocumentNodeElement.prototype, {
         }
         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);
+        }
+    },
     handle: function(event) {
-        var method = 'on' + event.type[0].toUpperCase() + event.type.substr(1);
-        if(this[method]) {
-            this[method](event);
+        var method = 'on' + event.type[0].toUpperCase() + event.type.substr(1),
+            target;
+        if(event.type === 'nodeAdded' || event.type === 'nodeDetached') {
+            this.containers.some(function(container) {
+                if(container.manages(event.meta.node, event.meta.parent)) {
+                    target = container;
+                    return true;
+                }
+            });
+        }
+        
+        if(!target && this[method]) {
+            target = this;
+        }
+        
+        if(target) {
+            target[method](event);
         }
     },
     createDOM: function() {
diff --git a/src/editor/modules/documentCanvas/canvas/genericElement.js b/src/editor/modules/documentCanvas/canvas/genericElement.js
index a769240..8ed08bf 100644
--- a/src/editor/modules/documentCanvas/canvas/genericElement.js
+++ b/src/editor/modules/documentCanvas/canvas/genericElement.js
@@ -5,7 +5,6 @@ define(function(require) {
 var $ = require('libs/jquery'),
     _ = require('libs/underscore'),
     documentElement = require('./documentElement'),
-    utils = require('./utils'),
     CommentsView = require('./comments/comments');
 
 
@@ -20,12 +19,10 @@ $.extend(generic, {
             .attr('wlxml-tag', this.wlxmlNode.getTagName())
             .attr('wlxml-class', this.wlxmlNode.getClass().replace(/\./g, '-'));
 
-        this.wlxmlNode.contents().forEach(function(node) {
-            var el = this.canvas.createElement(node);
-            if(el.dom) {
-                this._container().append(el.dom);
-            }
-        }.bind(this));
+        this.container = this.createContainer(this.wlxmlNode.contents(), {
+            manages: function(node) { return !node.isInside('comment'); },
+            dom: this._container()
+        });
 
         this.commentsView = new CommentsView(this.wlxmlNode, this.canvas.metadata.user);
         this.addToGutter(this.commentsView);
@@ -52,101 +49,41 @@ $.extend(generic, {
     },
 
     getFirst: function(e1, e2) {
-        var idx1 = this.childIndex(e1),
-            idx2 = this.childIndex(e2);
-        if(e1 === null || e2 === null) {
-            return undefined;
-        }
-        return idx1 <= idx2 ? e1: e2;
+        return this.container.getFirst(e1, e2);
     },
 
-    children: function() {
-        var element = this,
-            toret = [];
-        this._container().contents().each(function() {
-            var childElement = element.canvas.getDocumentElement(this);
-            if(childElement === undefined) {
-                return true;
-            }
+    containsBlock: function() {
+        return this.container.containsBlock();
+    },
 
-            toret.push(childElement);
-        });
-        return toret;
+    children: function() {
+        return this.container.children();
     },
 
     getVerticallyFirstTextElement: function(params) {
-        var toret;
-        
-        params = _.extend({
-            considerChildren: true
-        }, params);
-        
-        this.children().some(function(child) {
-            if(child instanceof documentElement.DocumentTextElement) {
-                toret = child;
-                return true; // break
-            } else if(params.considerChildren) {
-                toret = child.getVerticallyFirstTextElement();
-                if(toret) {
-                    return true; // break
-                }
-            }
-        });
-        return toret;
+        return this.container.getVerticallyFirstTextElement(params);
     },
 
     onNodeAdded: function(event) {
-        if(event.meta.node.isRoot()) {
-            this.canvas.reloadRoot();
-            return;
-        }
-
-        var ptr = event.meta.node.prev(),
-            referenceElement, referenceAction, actionArg;
-            
-        while(ptr && !(referenceElement = utils.getElementForElementRootNode(ptr))) {
-            ptr = ptr.prev();
-        }
-
-        if(referenceElement) {
-            referenceAction = 'after';
-        } else {
-            referenceElement = this;
-            referenceAction = 'prepend';
-        }
-      
-        if(event.meta.move) {
-            /* Let's check if this node had its own canvas element and it's accessible. */
-            actionArg = utils.getElementForElementRootNode(event.meta.node);
-        }
-        if(!actionArg) {
-            actionArg = event.meta.node;
-        }
-
-        referenceElement[referenceAction](actionArg);
-
         if(event.meta.node.is('comment')) {
             this.commentTip.show();
             this.commentsView.render();
         }
     },
+
     onNodeDetached: function(event) {
         var isComment = event.meta.node.is('comment');
         if(event.meta.node.sameNode(this)) {
+            // defacto jestesmy rootem?
             this.detach();
         } else {
-            this.children().some(function(child) {
-                if(child.wlxmlNode.sameNode(event.meta.node)) {
-                    child.detach();
-                    return true;
-                }
-            });
             if(isComment && !this.wlxmlNode.hasChild({klass: 'comment'})) {
                 this.commentTip.hide();
             }
             this.commentsView.render();
         }
     },
+
     onNodeTextChange: function(event) {
         var node = event.meta.node;
 
@@ -158,59 +95,14 @@ $.extend(generic, {
     },
 
     onStateChange: function(changes) {
-        if(_.isBoolean(changes.exposed) && !this.isSpan()) {
+        var isSpan = this.wlxmlNode.getTagName() === 'span';
+        if(_.isBoolean(changes.exposed) && !isSpan) {
             this._container().toggleClass('highlighted-element', changes.exposed);
         }
-        if(_.isBoolean(changes.active) && !this.isSpan()) {
+        if(_.isBoolean(changes.active) && !isSpan) {
             this._container().toggleClass('current-node-element', changes.active);
         }
     },
-
-    ///
-
-    isSpan: function() {
-        return this.wlxmlNode.getTagName() === 'span';
-    },
-    
-    containsBlock: function() {
-        return this.children()
-            .filter(function(child) {
-                return child instanceof documentElement.DocumentNodeElement;
-            })
-            .some(function(child) {
-                if(child.isBlock()) {
-                    return true;
-                } else {
-                    return child.containsBlock();
-                }
-            });
-    },
-
-    prepend: function(param) {
-        var element;
-        if(param instanceof documentElement.DocumentElement) {
-            element = param;
-        } else {
-            element = this.canvas.createElement(param);
-        }
-        if(element.dom) {
-            this._container().prepend(element.dom);
-            this.refreshPath();
-        }
-        return element;
-    },
-
-    childIndex: function(child) {
-        var children = this.children(),
-            toret = null;
-        children.forEach(function(c, idx) {
-            if(c.sameNode(child)) {
-                toret = idx;
-                return false;
-            }
-        });
-        return toret;
-    }
 });