src/editor/modules/documentCanvas/canvas/genericElement.js

   1 define(function(require) {
   2
   3 'use strict';
   4
   5 var $ = require('libs/jquery'),
   6     documentElement = require('./documentElement'),
   7     utils = require('./utils'),
   8     wlxmlUtils = require('utils/wlxml');
   9
  10 var labelWidget = function(tag, klass) {
  11     return $('<span>')
  12         .addClass('canvas-widget canvas-widget-label')
  13         .text(wlxmlUtils.getTagLabel(tag) + (klass ? ' / ' + wlxmlUtils.getClassLabel(klass) : ''));
  14 };
  15 void(labelWidget); // for linters; labelWidget is unused on purpose for now
  16
  17
  18 var generic = {
  19     onNodeAttrChange: function(event) {
  20         if(event.meta.attr === 'class') {
  21             this.setWlxmlClass(event.meta.newVal); //
  22         }
  23     },
  24     onNodeAdded: function(event) {
  25         if(event.meta.node.isRoot()) {
  26             this.canvas.reloadRoot();
  27             return;
  28         }
  29
  30         var nodeIndex = event.meta.node.getIndex(),
  31             referenceElement, referenceAction, actionArg;
  32
  33         if(nodeIndex === 0) {
  34             referenceElement = this;
  35             referenceAction = 'prepend';
  36         } else {
  37             referenceElement = this.children()[nodeIndex-1];
  38             referenceAction = 'after';
  39         }
  40
  41         actionArg = (event.type === 'nodeMoved' && utils.findCanvasElement(event.meta.node, event.meta.parent)) || event.meta.node;
  42         referenceElement[referenceAction](actionArg);
  43     },
  44     onNodeMoved: function(event) {
  45         return this.onNodeAdded.call(this, event, true);
  46     },
  47     onNodeDetached: function(event) {
  48         if(event.meta.node.sameNode(this)) {
  49             this.detach();
  50         } else {
  51             this.children().some(function(child) {
  52                 if(child.wlxmlNode.sameNode(event.meta.node)) {
  53                     child.detach();
  54                     return true;
  55                 }
  56             });
  57         }
  58     },
  59     onNodeTextChange: function(event) {
  60         var toSet = event.meta.node.getText();
  61         this.children().some(function(child) {
  62             if(child.wlxmlNode.sameNode(event.meta.node)) {
  63                 if(toSet === '') {
  64                     toSet = utils.unicode.ZWS;
  65                 }
  66                 if(toSet !== child.getText()) {
  67                     child.setText(toSet);
  68                 }
  69                 return true;
  70             }
  71         });
  72     },
  73
  74     prepend: function(param) {
  75         var element;
  76         if(param instanceof documentElement.DocumentElement) {
  77             element = param;
  78         } else {
  79             element = this.canvas.createElement(param);
  80         }
  81         this._container().prepend(element.dom);
  82         this.refreshPath();
  83         return element;
  84     },
  85
  86     children: function() {
  87         var element = this,
  88             toret = [];
  89         this._container().contents().each(function() {
  90             var childElement = element.canvas.getDocumentElement(this);
  91             if(childElement === undefined) {
  92                 return true;
  93             }
  94
  95             toret.push(childElement);
  96         });
  97         return toret;
  98     },
  99
 100     getFirst: function(e1, e2) {
 101         var idx1 = this.childIndex(e1),
 102             idx2 = this.childIndex(e2);
 103         if(e1 === null || e2 === null) {
 104             return undefined;
 105         }
 106         return idx1 <= idx2 ? e1: e2;
 107     },
 108
 109     childIndex: function(child) {
 110         var children = this.children(),
 111             toret = null;
 112         children.forEach(function(c, idx) {
 113             if(c.sameNode(child)) {
 114                 toret = idx;
 115                 return false;
 116             }
 117         });
 118         return toret;
 119     },
 120
 121     getWlxmlClass: function() {
 122         var klass = this._container().attr('wlxml-class');
 123         if(klass) {
 124             return klass.replace(/-/g, '.');
 125         }
 126         return undefined;
 127     },
 128     setWlxmlClass: function(klass) {
 129         if(klass === this.getWlxmlClass()) {
 130             return;
 131         }
 132         if(klass) {
 133             this._container().attr('wlxml-class', klass.replace(/\./g, '-'));
 134         }
 135         else {
 136             this._container().removeAttr('wlxml-class');
 137         }
 138         this.refreshPath();
 139     },
 140     init: function() {
 141         this._container()
 142             .attr('wlxml-tag', this.wlxmlNode.getTagName());
 143         this.setWlxmlClass(this.wlxmlNode.getClass());
 144         this.wlxmlNode.contents().forEach(function(node) {
 145             this._container().append(this.canvas.createElement(node).dom);
 146         }.bind(this));
 147         this.refresh();
 148
 149     },
 150     refresh: function() {
 151         if(this.wlxmlNode.getTagName() === 'span') {
 152             if(this.containsBlock()) {
 153                 this.displayAsBlock();
 154             } else {
 155                 this.displayInline();
 156             }
 157         } else {
 158             this.displayAsBlock();
 159         }
 160     },
 161     containsBlock: function() {
 162         return this.children()
 163             .filter(function(child) {
 164                 return child instanceof documentElement.DocumentNodeElement;
 165             })
 166             .some(function(child) {
 167                 if(child.isBlock()) {
 168                     return true;
 169                 } else {
 170                     return child.containsBlock();
 171                 }
 172             });
 173     },
 174     getVerticallyFirstTextElement: function() {
 175         var toret;
 176         this.children().some(function(child) {
 177             if(child instanceof documentElement.DocumentTextElement) {
 178                 toret = child;
 179                 return true; // break
 180             } else {
 181                 toret = child.getVerticallyFirstTextElement();
 182                 if(toret) {
 183                     return true; // break
 184                 }
 185             }
 186         });
 187         return toret;
 188     },
 189 };
 190
 191
 192 return generic;
 193
 194
 195
 196 });