X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/1c409979eddd9cd58c1efe2705328c91c95c592b..9db0e3facfdcb376b589ea922215bbdb1a3d1787:/modules/documentCanvas/canvas/canvas.js

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index e6b8135..88a8839 100644
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -6,8 +6,9 @@ define([
     
 'use strict';
 
-var Canvas = function(wlxml) {
+var Canvas = function(wlxml, publisher) {
     this.loadWlxml(wlxml);
+    this.publisher = publisher ? publisher : function() {};
 };
 
 $.extend(Canvas.prototype, {
@@ -15,25 +16,23 @@ $.extend(Canvas.prototype, {
     loadWlxml: function(wlxml) {
         var d = wlxml ? $($.trim(wlxml)) : null;
         if(d) {
-            var wrapper = $('<div>');
-            wrapper.append(d);
+            this.wrapper = $('<div>').addClass('canvas-wrapper').attr('contenteditable', true);
+            this.wrapper.append(d);
             
-            wrapper.find('*').replaceWith(function() {
+            this.wrapper.find('*').replaceWith(function() {
                 var currentTag = $(this);
                 if(currentTag.attr('wlxml-tag'))
                     return;
-                var toret = $('<div>').attr('wlxml-tag', currentTag.prop('tagName').toLowerCase());
-                //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);}));
-                for(var i = 0; i < this.attributes.length; i++) {
-                    var attr = this.attributes.item(i);
-                    var value = attr.name === 'class' ? attr.value.replace(/\./g, '-') : attr.value;
-                    toret.attr('wlxml-' + attr.name, value);
-                }
-                toret.append(currentTag.contents());
-                return toret;
+                var element = documentElement.DocumentNodeElement.createDOM({
+                    tag: currentTag.prop('tagName').toLowerCase(),
+                    klass: currentTag.attr('class')
+                });
+
+                element.append(currentTag.contents());
+                return element;
             });
 
-            wrapper.find(':not(iframe)').addBack().contents()
+            this.wrapper.find(':not(iframe)').addBack().contents()
                 .filter(function() {return this.nodeType === Node.TEXT_NODE})
                 .each(function() {
 
@@ -57,22 +56,64 @@ $.extend(Canvas.prototype, {
                         this.data = $.trim(this.data);
                         if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
                             this.data = ' ';
-                        if(this.data.length === 0)
+                        if(this.data.length === 0) {
                             $(this).remove();
+                            return true; // continue
+                        }
                     }
+
+                    var element = documentElement.DocumentTextElement.create({text: this.data});
+                    $(this).replaceWith(element.dom());
                 });
             
-            this.d = wrapper.children(0);
-            this.d.unwrap();
+            this.d = this.wrapper.children(0);
+
+            var canvas = this;
+            this.wrapper.on('keydown', function(e) {
+                if(e.which === 13) { 
+                    e.preventDefault();
+                    var cursor = canvas.getCursor();
+                    if(!cursor.isSelecting()) {
+                        var position = cursor.getPosition(),
+                            elements = position.element.split({offset: position.offset}),
+                            newEmpty,
+                            goto;
+
+                        if(position.offsetAtBeginning)
+                            newEmpty = elements.first;
+                        else if(position.offsetAtEnd)
+                            newEmpty = elements.second;
+                        if(newEmpty) {
+                            goto = newEmpty.append(documentElement.DocumentTextElement.create({text: '\u200B'}, this));
+                            canvas.setCurrentElement(goto);
+                        }
+                    }
+                }
+            });
+
+            this.wrapper.on('keyup', function(e) {
+                if(e.which >= 37 && e.which <= 40)
+                    canvas.setCurrentElement(canvas.getCursor().getPosition().element, {caretTo: false})
+            });
+
+            this.wrapper.on('click', '[wlxml-tag], [wlxml-text]', function(e) {
+                e.stopPropagation();
+                canvas.setCurrentElement(canvas.getDocumentElement(e.target), {caretTo: false});
+            });
+
         } else {
             this.d = null;
         }
     },
 
+    view: function() {
+        return this.wrapper;
+    },
+
     doc: function() {
         if(this.d === null)
             return null;
-        return documentElement.wrap(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
+        return documentElement.DocumentNodeElement.fromHTMLElement(this.d.get(0), this); //{wlxmlTag: this.d.prop('tagName')};
     },
 
     wrapText: function(params) {
@@ -117,7 +158,7 @@ $.extend(Canvas.prototype, {
     },
     getDocumentElement: function(from) {
         if(from instanceof HTMLElement || from instanceof Text) {
-           return documentElement.wrap(from, this);
+           return documentElement.DocumentElement.fromHTMLElement(from, this);
         }
     },
     getCursor: function() {
@@ -125,7 +166,105 @@ $.extend(Canvas.prototype, {
     },
 
     list: {},
+
+
+
+    highlightElement: function(element) {
+        this.wrapper.find('.highlighted-element').removeClass('highlighted-element');
+        element.dom().addClass('highlighted-element');
+    },
+
+    dimElement: function(element) {
+        element.dom().removeClass('highlighted-element');
+    },
     
+    getCurrentNodeElement: function() {
+        return this.getDocumentElement(this.wrapper.find('.current-node-element')[0]);
+    },
+
+    getCurrentTextElement: function() {
+        return this.getDocumentElement(this.wrapper.find('.current-text-element')[0]);
+    },
+
+
+
+    setCurrentElement: function(element, params) {
+        params = _.extend({caretTo: 'end'}, params);
+        var findFirstDirectTextChild = function(e, nodeToLand) {
+            var byBrowser = this.getCursor().getPosition().element;
+            if(byBrowser && byBrowser.parent().sameNode(nodeToLand))
+                return byBrowser;
+            var children = e.children();
+            for(var i = 0; i < children.length; i++) {
+                if(children[i] instanceof documentElement.DocumentTextElement)
+                    return children[i];
+            }
+            return null;
+        }.bind(this);
+        var _markAsCurrent = function(element) {
+            if(element instanceof documentElement.DocumentTextElement) {
+                this.wrapper.find('.current-text-element').removeClass('current-text-element');
+                element.dom().addClass('current-text-element');
+            } else {
+                this.wrapper.find('.current-node-element').removeClass('current-node-element')
+                element.dom().addClass('current-node-element');
+                this.publisher('currentElementChanged', element);
+            }
+        }.bind(this);
+
+
+        var isTextElement = element instanceof documentElement.DocumentTextElement,
+            nodeElementToLand = isTextElement ? element.parent() : element,
+            textElementToLand = isTextElement ? element : findFirstDirectTextChild(element, nodeElementToLand),
+            currentTextElement = this.getCurrentTextElement(),
+            currentNodeElement = this.getCurrentNodeElement();
+
+        if(currentTextElement && !(currentTextElement.sameNode(textElementToLand)))
+            this.wrapper.find('.current-text-element').removeClass('current-text-element');
+
+        if(textElementToLand) {
+            _markAsCurrent(textElementToLand);
+            if(params.caretTo || !textElementToLand.sameNode(this.getCursor().getPosition().element))
+                this._moveCaretToTextElement(textElementToLand, params.caretTo); // as method on element?
+            if(!(textElementToLand.sameNode(currentTextElement)))
+                this.publisher('currentTextElementSet', textElementToLand);
+        } else {
+            document.getSelection().removeAllRanges();
+        }
+
+        if(!(currentNodeElement && currentNodeElement.sameNode(nodeElementToLand))) {
+            _markAsCurrent(nodeElementToLand);
+
+            this.publisher('currentNodeElementSet', nodeElementToLand);
+        }
+    },
+
+    _moveCaretToTextElement: function(element, where) {
+        var range = document.createRange(),
+            node = element.dom().contents()[0];
+
+        if(typeof where !== 'number') {
+            range.selectNodeContents(node);
+        } else {
+            range.setStart(node, where);
+        }
+        
+        var collapseArg = true;
+        if(where === 'end')
+            collapseArg = false;
+        range.collapse(collapseArg);
+        
+        var selection = document.getSelection();
+
+        selection.removeAllRanges();
+        selection.addRange(range);
+        this.wrapper.focus(); // FF requires this for caret to be put where range colllapses, Chrome doesn't.
+    },
+
+    setCursorPosition: function(position) {
+        if(position.element)
+            this._moveCaretToTextElement(position.element, position.offset);
+    }
 });
 
 $.extend(Canvas.prototype.list, {
@@ -291,10 +430,15 @@ $.extend(Cursor.prototype, {
             anchorElement = this.canvas.getDocumentElement(selection.anchorNode),
             focusElement = this.canvas.getDocumentElement(selection.focusNode);
         
+        if(anchorElement instanceof documentElement.DocumentNodeElement || focusElement instanceof documentElement.DocumentNodeElement)
+            return {};
+
         if(which === 'anchor') {
             return {
                 element: anchorElement,
-                offset: selection.anchorOffset
+                offset: selection.anchorOffset,
+                offsetAtBeginning: selection.anchorOffset === 0,
+                offsetAtEnd: anchorElement && anchorElement.getText().length === selection.anchorOffset
             };
         }
         
@@ -336,14 +480,16 @@ $.extend(Cursor.prototype, {
 
         return {
             element: element,
-            offset: offset
+            offset: offset,
+            offsetAtBeginning: offset === 0,
+            offsetAtEnd: element.getText().length === offset
         }
     }
 })
 
 return {
-    fromXML: function(xml) {
-        return new Canvas(xml);
+    fromXML: function(xml, publisher) {
+        return new Canvas(xml, publisher);
     }
 };