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

   1 define(function(require) {
   2
   3 'use strict';
   4
   5 var $ = require('libs/jquery'),
   6     _ = require('libs/underscore'),
   7     Backbone = require('libs/backbone'),
   8     gutterBoxTemplate = require('libs/text!./gutterBox.html');
   9
  10
  11 var GutterView = function(gutter) {
  12     gutter.on('show', function(group) {
  13         if(this.groupView) {
  14             this.groupView.remove();
  15         }
  16         this.groupView = new GutterGroupView(this, group);
  17         this.dom.append(this.groupView.dom);
  18         this.groupView.dom.css({top: group.getOffsetHint()});
  19         this.groupView.show();
  20     }, this);
  21     this.dom = $('<div class="gutter"></div>');
  22 };
  23
  24
  25 var GutterGroupView = function(gutterView, group) {
  26     this.gutterView = gutterView;
  27     this.group = group;
  28     this.views  = [];
  29
  30     this.dom = $(gutterBoxTemplate);
  31
  32     this.dom.on('click', function() {
  33         if(!this.dom.hasClass('focused')) {
  34             var canvas = this.group.meta.canvas;
  35             canvas.setCurrentElement(this.group.meta);
  36         }
  37     }.bind(this));
  38
  39     this.group.views.forEach(function(view) {
  40         this.onViewAdded(view);
  41     }.bind(this));
  42
  43     this.group.on('viewAdded', this.onViewAdded, this);
  44     this.group.on('focusToggled', this.onFocusToggled, this);
  45 };
  46 $.extend(GutterGroupView.prototype, {
  47     remove: function() {
  48         this.group.off('viewAdded', this.onViewAdded);
  49         this.group.off('focusToggled', this.onFocusToggled);
  50         this.dom.detach();
  51     },
  52     onViewAdded: function(view) {
  53         this.views.push(view);
  54         this.dom.append(view.dom);
  55     },
  56     show: function() {
  57         this.dom.addClass('focused');
  58         this.views.forEach(function(view) {
  59             if(view.onActivated) {
  60                 view.onActivated();
  61             }
  62         });
  63     }
  64 });
  65
  66
  67
  68 /// model
  69
  70 var ViewGroup = function(params, gutter, meta) {
  71     this.gutter = gutter;
  72     this.params = params;
  73     this.meta = meta;
  74     this.view = $(gutterBoxTemplate);
  75     this.views = [];
  76 };
  77 $.extend(ViewGroup.prototype, Backbone.Events, {
  78     getOffsetHint: function() {
  79         return _.isFunction(this.params.offsetHint) ? this.params.offsetHint() : this.params.offsetHint;
  80     },
  81     addView: function(view) {
  82         this.views.push(view);
  83         this.trigger('viewAdded', view);
  84     },
  85     show: function() {
  86         this.gutter.show(this);
  87     }
  88 });
  89
  90
  91 var Gutter = function() {
  92 };
  93
  94 _.extend(Gutter.prototype, Backbone.Events, {
  95     createViewGroup: function(params, meta) {
  96         return new ViewGroup(params, this, meta);
  97     },
  98     show: function(group) {
  99         this.trigger('show', group);
 100     },
 101 });
 102
 103
 104 return {
 105     create: function() {
 106         return new Gutter();
 107     },
 108     GutterView: GutterView,
 109     GutterGroupView: GutterGroupView
 110 };
 111
 112 });