| 1 | define(["dojo/_base/kernel","dojo/_base/declare","dojo/_base/connect","dojo/_base/array", |
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| 2 | "dojo/_base/html","dojo/_base/window","dojox/mdnd/AreaManager","dojo/dnd/Manager"],function(dojo){ |
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| 3 | var dfd = dojo.declare( |
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| 4 | "dojox.mdnd.adapter.DndFromDojo", |
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| 5 | null, |
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| 6 | { |
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| 7 | // summary |
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| 8 | // Allow communication between Dojo dnd items and DojoX D&D areas |
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| 9 | |
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| 10 | // dropIndicatorSize: Object |
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| 11 | // size by default of dropIndicator (display only into a D&D Area) |
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| 12 | dropIndicatorSize : {'w':0,'h':50}, |
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| 13 | |
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| 14 | // dropIndicatorSize: Object |
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| 15 | // size by default of dropIndicator (display only into a D&D Area) |
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| 16 | dropIndicatorSize: {'w':0,'h':50}, |
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| 17 | |
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| 18 | // _areaManager: Object |
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| 19 | // Reference to the current DojoX Dnd Manager |
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| 20 | _areaManager: null, |
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| 21 | |
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| 22 | // _dojoManager |
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| 23 | // Reference to the current Dojo Manager |
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| 24 | _dojoManager: null, |
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| 25 | |
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| 26 | // _currentArea: Object |
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| 27 | // The current Area on mouse over |
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| 28 | _currentArea: null, |
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| 29 | |
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| 30 | // _oldArea: Object |
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| 31 | // The old area the mouse has passed over |
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| 32 | _oldArea: null, |
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| 33 | |
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| 34 | // _moveHandler: Object |
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| 35 | // The handler of mouse connection |
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| 36 | _moveHandler: null, |
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| 37 | |
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| 38 | // _subscribeHandler: Array |
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| 39 | // The list of dojo dnd topics |
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| 40 | _subscribeHandler: null, |
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| 41 | |
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| 42 | constructor: function(){ |
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| 43 | this._areaManager = dojox.mdnd.areaManager(); |
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| 44 | this._dojoManager = dojo.dnd.manager(); |
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| 45 | this._currentArea = null; |
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| 46 | this._moveHandler = null; |
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| 47 | this.subscribeDnd(); |
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| 48 | }, |
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| 49 | |
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| 50 | subscribeDnd: function(){ |
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| 51 | // summary: |
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| 52 | // Subscribe to somes topics of dojo drag and drop. |
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| 53 | |
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| 54 | //console.log(("dojox.mdnd.adapter.DndFromDojo ::: subscribeDnd"); |
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| 55 | this._subscribeHandler = [ |
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| 56 | dojo.subscribe("/dnd/start",this,"onDragStart"), |
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| 57 | dojo.subscribe("/dnd/drop/before", this, "onDrop"), |
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| 58 | dojo.subscribe("/dnd/cancel",this,"onDropCancel"), |
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| 59 | dojo.subscribe("/dnd/source/over",this,"onDndSource") |
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| 60 | ] |
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| 61 | }, |
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| 62 | |
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| 63 | unsubscribeDnd: function(){ |
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| 64 | // summary: |
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| 65 | // Unsubscribe to some topics of dojo drag and drop. |
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| 66 | |
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| 67 | //console.log(("dojox.mdnd.adapter.DndFromDojo ::: unsubscribeDnd"); |
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| 68 | dojo.forEach(this._subscribeHandler, dojo.unsubscribe); |
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| 69 | }, |
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| 70 | |
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| 71 | _getHoverArea: function(/*Object*/ coords){ |
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| 72 | // summary: |
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| 73 | // Get a D&D dojoX area as a DOM node positioned under a specific point. |
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| 74 | // coords: |
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| 75 | // Object containing the coordinates x and y (mouse position) |
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| 76 | // tags: |
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| 77 | // protected |
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| 78 | |
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| 79 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: _getHoverArea"); |
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| 80 | var x = coords.x; |
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| 81 | var y = coords.y; |
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| 82 | this._oldArea = this._currentArea; |
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| 83 | this._currentArea = null; |
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| 84 | var areas = this._areaManager._areaList; |
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| 85 | for(var i = 0; i < areas.length; i++){ |
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| 86 | var area = areas[i]; |
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| 87 | var startX = area.coords.x; |
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| 88 | var endX = startX + area.node.offsetWidth; |
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| 89 | var startY = area.coords.y; |
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| 90 | var endY = startY + area.node.offsetHeight; |
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| 91 | // check if the coordinates mouse is in a D&D Area |
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| 92 | if(startX <= x && x <= endX && startY <= y && y <= endY){ |
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| 93 | this._areaManager._oldIndexArea = this._areaManager._currentIndexArea; |
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| 94 | this._areaManager._currentIndexArea = i; |
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| 95 | this._currentArea = area.node; |
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| 96 | break; |
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| 97 | } |
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| 98 | } |
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| 99 | if(this._currentArea != this._oldArea){ |
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| 100 | if(this._currentArea == null){ |
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| 101 | // case when the dragNode was in a D&D area but it's out now. |
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| 102 | this.onDragExit(); |
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| 103 | } |
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| 104 | else if(this._oldArea == null){ |
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| 105 | // case when the dragNode was out a D&D area but it's in now. |
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| 106 | this.onDragEnter(); |
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| 107 | } |
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| 108 | else{ |
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| 109 | // case when the dragNode was in a D&D area and enter in an other D&D area directly. |
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| 110 | this.onDragExit(); |
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| 111 | this.onDragEnter(); |
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| 112 | } |
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| 113 | } |
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| 114 | |
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| 115 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: _getHoverArea",this._dojoManager.avatar.node,this._currentArea,this._oldArea); |
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| 116 | }, |
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| 117 | |
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| 118 | onDragStart: function(/*Object*/source, /*Array*/nodes, /*Boolean*/copy){ |
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| 119 | // summary: |
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| 120 | // Occurs when the "/dnd/start" topic is published. |
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| 121 | // source: |
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| 122 | // the source which provides items |
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| 123 | // nodes: |
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| 124 | // the list of transferred items |
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| 125 | // copy: |
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| 126 | // copy items, if true, move items otherwise |
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| 127 | // tags: |
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| 128 | // callback |
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| 129 | |
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| 130 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDragStart"); |
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| 131 | // catch the dragNode to get the type when it's necessary. |
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| 132 | this._dragNode = nodes[0]; |
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| 133 | this._copy = copy; this._source = source; |
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| 134 | // Connect the onMouseMove : |
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| 135 | // It's usefull to activate the detection of a D&D area and the dropIndicator place only if |
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| 136 | // the dragNode is out of a the source dojo. The classic behaviour of the dojo source is kept. |
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| 137 | this._outSourceHandler = dojo.connect(this._dojoManager, "outSource", this, function(){ |
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| 138 | //dojo.disconnect(this._outSourceHandler); |
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| 139 | if(this._moveHandler == null){ |
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| 140 | this._moveHandler = dojo.connect(dojo.doc, "mousemove", this, "onMouseMove"); |
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| 141 | } |
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| 142 | }); |
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| 143 | }, |
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| 144 | |
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| 145 | onMouseMove: function(/*DOMEvent*/e){ |
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| 146 | // summary: |
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| 147 | // Occurs when the user moves the mouse. |
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| 148 | // e: |
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| 149 | // the DOM event |
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| 150 | // tags: |
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| 151 | // callback |
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| 152 | |
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| 153 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onMouseMove"); |
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| 154 | // calculate the coordonates of the mouse. |
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| 155 | var coords = { |
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| 156 | 'x': e.pageX, |
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| 157 | 'y': e.pageY |
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| 158 | }; |
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| 159 | this._getHoverArea(coords); |
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| 160 | // if a D&D area has been found and if it's accepted to drop this type of dragged node |
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| 161 | if(this._currentArea && this._areaManager._accept){ |
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| 162 | // specific case : a dropIndicator can be hidden (see onDndSource method) |
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| 163 | if(this._areaManager._dropIndicator.node.style.visibility == "hidden"){ |
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| 164 | this._areaManager._dropIndicator.node.style.visibility = ""; |
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| 165 | dojo.addClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 166 | } |
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| 167 | // place the dropIndicator in D&D Area with a default size. |
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| 168 | this._areaManager.placeDropIndicator(coords, this.dropIndicatorSize); |
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| 169 | } |
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| 170 | }, |
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| 171 | |
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| 172 | onDragEnter: function(){ |
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| 173 | // summary: |
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| 174 | // Occurs when the user drages an DOJO dnd item inside a D&D dojoX area. |
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| 175 | // tags: |
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| 176 | // callback |
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| 177 | |
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| 178 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDragEnter"); |
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| 179 | // Check if the type of dragged node is accepted in the selected D&D dojoX Area. |
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| 180 | var _dndType = this._dragNode.getAttribute("dndType"); |
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| 181 | // need to have an array as type |
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| 182 | var type = (_dndType) ? _dndType.split(/\s*,\s*/) : ["text"]; |
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| 183 | this._areaManager._isAccepted(type, this._areaManager._areaList[this._areaManager._currentIndexArea].accept); |
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| 184 | // if the D&D dojoX Area accepts the drop, change the color of Avatar. |
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| 185 | if(this._dojoManager.avatar){ |
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| 186 | if(this._areaManager._accept){ |
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| 187 | dojo.addClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 188 | } |
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| 189 | else{ |
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| 190 | dojo.removeClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 191 | } |
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| 192 | } |
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| 193 | }, |
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| 194 | |
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| 195 | onDragExit: function(){ |
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| 196 | // summary: |
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| 197 | // Occurs when the user leaves a D&D dojoX area after dragging an DOJO dnd item over it. |
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| 198 | |
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| 199 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDragExit"); |
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| 200 | // if the dragged node exits of a D&D dojoX Area : |
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| 201 | this._areaManager._accept = false; |
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| 202 | // change color of avatar |
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| 203 | if(this._dojoManager.avatar){ |
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| 204 | dojo.removeClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 205 | } |
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| 206 | // reset all variables and remove the dropIndicator. |
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| 207 | if(this._currentArea == null){ |
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| 208 | this._areaManager._dropMode.refreshItems(this._areaManager._areaList[this._areaManager._oldIndexArea], this._areaManager._oldDropIndex, this.dropIndicatorSize, false); |
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| 209 | this._areaManager._resetAfterDrop(); |
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| 210 | } |
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| 211 | else{ |
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| 212 | this._areaManager._dropIndicator.remove(); |
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| 213 | } |
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| 214 | }, |
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| 215 | |
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| 216 | isAccepted: function(/*Node*/node, /*Object*/accept){ |
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| 217 | // summary: |
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| 218 | // Check if a dragNode is accepted into a dojo target. |
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| 219 | // node: |
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| 220 | // The dragged node. |
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| 221 | // accept: |
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| 222 | // Object containing the type accepted for a target dojo. |
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| 223 | // returns: |
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| 224 | // true if the dragged node is accepted in the target dojo. |
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| 225 | |
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| 226 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: isAccepted"); |
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| 227 | var type = (node.getAttribute("dndType")) ? node.getAttribute("dndType") : "text"; |
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| 228 | if(type && type in accept) |
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| 229 | return true; // Boolean |
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| 230 | else |
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| 231 | return false; // Boolean |
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| 232 | }, |
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| 233 | |
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| 234 | onDndSource: function(/*Object*/ source){ |
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| 235 | // summary: |
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| 236 | // Called when the mouse enters or exits of a source dojo. |
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| 237 | // source: |
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| 238 | // the dojo source/target |
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| 239 | // tags: |
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| 240 | // callback |
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| 241 | |
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| 242 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDndSource",source); |
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| 243 | // Only the case : "source dojo into a D&D dojoX Area" is treated. |
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| 244 | if(this._currentArea == null){ |
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| 245 | return; |
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| 246 | } |
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| 247 | if(source){ |
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| 248 | // Enter in a source/target dojo. |
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| 249 | // test if the type of draggedNode is accepted : |
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| 250 | var accept = false; |
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| 251 | if(this._dojoManager.target == source){ |
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| 252 | accept = true; |
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| 253 | } |
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| 254 | else{ |
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| 255 | accept = this.isAccepted(this._dragNode, source.accept); |
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| 256 | } |
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| 257 | if(accept){ |
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| 258 | // disconnect the onMouseMove to disabled the search of a drop zone in the D&D dojoX Area. |
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| 259 | dojo.disconnect(this._moveHandler); |
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| 260 | this._currentArea = this._moveHandler = null; |
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| 261 | // hidden the visibility of dojoX dropIndicator to prevent an offset when the dropIndicator disappears. |
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| 262 | // test if drop indicator is visible before applaying hidden style. |
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| 263 | var dropIndicator = this._areaManager._dropIndicator.node; |
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| 264 | if(dropIndicator && dropIndicator.parentNode !== null && dropIndicator.parentNode.nodeType == 1) |
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| 265 | dropIndicator.style.visibility = "hidden"; |
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| 266 | } |
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| 267 | else{ |
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| 268 | // if the type of dragged node is not accepted in the target dojo, the color of avatar |
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| 269 | // have to be the same that the color of D&D dojoX Area acceptance. |
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| 270 | this._resetAvatar(); |
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| 271 | } |
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| 272 | } |
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| 273 | else{ |
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| 274 | // Exit of a source/target dojo. |
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| 275 | // reconnect the onMouseMove to enabled the search of a drop zone in the D&D dojox Area. |
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| 276 | if(!this._moveHandler) |
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| 277 | this._moveHandler = dojo.connect(dojo.doc, "mousemove", this, "onMouseMove"); |
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| 278 | |
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| 279 | this._resetAvatar(); |
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| 280 | } |
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| 281 | }, |
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| 282 | |
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| 283 | _resetAvatar: function(){ |
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| 284 | // summary: |
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| 285 | // Function executed in onDndSource function to set the avatar |
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| 286 | // acceptance according to the dojox DnD AreaManager Acceptance. |
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| 287 | // It is used when The mouse exit a source/target dojo or if the |
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| 288 | // dragged node is not accepted in dojo source / target. |
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| 289 | // tags: |
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| 290 | // protected |
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| 291 | |
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| 292 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: _resetAvatar"); |
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| 293 | if(this._dojoManager.avatar){ |
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| 294 | if(this._areaManager._accept){ |
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| 295 | dojo.addClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 296 | } |
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| 297 | else{ |
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| 298 | dojo.removeClass(this._dojoManager.avatar.node, "dojoDndAvatarCanDrop"); |
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| 299 | } |
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| 300 | } |
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| 301 | }, |
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| 302 | |
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| 303 | onDropCancel: function(){ |
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| 304 | // summary: |
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| 305 | // Occurs when the "/dnd/cancel" topic is published. |
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| 306 | // tags: |
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| 307 | // callback |
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| 308 | |
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| 309 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDropCancel"); |
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| 310 | if(this._currentArea == null){ |
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| 311 | // the dragged node is not in the D&D dojox Area => Cancel |
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| 312 | this._areaManager._resetAfterDrop(); |
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| 313 | dojo.disconnect(this._moveHandler); |
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| 314 | dojo.disconnect(this._outSourceHandler); |
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| 315 | this._currentArea = this._moveHandler = this._outSourceHandler = null; |
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| 316 | } |
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| 317 | else{ |
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| 318 | // the dragged node is in the D&D dojox Area |
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| 319 | // (catch when dragged node exits of a source/target dojo and stays in the same D&D dojox Area) |
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| 320 | // dojo cancel the drop but it's authorized in the D&D Area |
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| 321 | if(this._areaManager._accept){ |
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| 322 | this.onDrop(this._source, [this._dragNode], this._copy, this._currentArea); |
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| 323 | } |
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| 324 | else{ |
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| 325 | this._currentArea = null; |
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| 326 | dojo.disconnect(this._outSourceHandler); |
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| 327 | dojo.disconnect(this._moveHandler); |
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| 328 | this._moveHandler = this._outSourceHandler = null; |
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| 329 | } |
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| 330 | } |
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| 331 | }, |
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| 332 | |
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| 333 | onDrop: function(/*Object*/source, /*Array*/nodes, /*Boolean*/copy){ |
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| 334 | // summary: |
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| 335 | // Occurs when the user leaves a D&D dojox area after dragging an DOJO dnd item over it. |
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| 336 | // source: |
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| 337 | // the source which provides items |
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| 338 | // nodes: |
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| 339 | // the list of transferred items |
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| 340 | // copy: |
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| 341 | // copy items, if true, move items otherwise |
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| 342 | // tags: |
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| 343 | // callback |
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| 344 | |
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| 345 | //console.log("dojox.mdnd.adapter.DndFromDojo ::: onDrop", this._currentArea); |
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| 346 | dojo.disconnect(this._moveHandler); |
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| 347 | dojo.disconnect(this._outSourceHandler); |
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| 348 | this._moveHandler = this._outSourceHandler = null; |
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| 349 | if(this._currentArea){ |
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| 350 | var dropIndex = this._areaManager._currentDropIndex; |
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| 351 | dojo.publish("/dnd/drop/after", [source, nodes, copy, this._currentArea, dropIndex]); |
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| 352 | this._currentArea = null; |
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| 353 | } |
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| 354 | if(this._areaManager._dropIndicator.node.style.visibility == "hidden"){ |
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| 355 | this._areaManager._dropIndicator.node.style.visibility = ""; |
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| 356 | } |
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| 357 | this._areaManager._resetAfterDrop(); |
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| 358 | } |
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| 359 | }); |
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| 360 | |
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| 361 | dojox.mdnd.adapter._dndFromDojo = null; |
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| 362 | dojox.mdnd.adapter._dndFromDojo = new dojox.mdnd.adapter.DndFromDojo(); |
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| 363 | return dfd; |
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| 364 | }); |
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