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Diffstat (limited to 'includes/js/dojo/dnd/Selector.js')
-rw-r--r-- | includes/js/dojo/dnd/Selector.js | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/includes/js/dojo/dnd/Selector.js b/includes/js/dojo/dnd/Selector.js new file mode 100644 index 0000000..f942e7e --- /dev/null +++ b/includes/js/dojo/dnd/Selector.js @@ -0,0 +1,244 @@ +if(!dojo._hasResource["dojo.dnd.Selector"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojo.dnd.Selector"] = true; +dojo.provide("dojo.dnd.Selector"); + +dojo.require("dojo.dnd.common"); +dojo.require("dojo.dnd.Container"); + +/* + Container item states: + "" - an item is not selected + "Selected" - an item is selected + "Anchor" - an item is selected, and is an anchor for a "shift" selection +*/ + +dojo.declare("dojo.dnd.Selector", dojo.dnd.Container, { + // summary: a Selector object, which knows how to select its children + + constructor: function(node, params){ + // summary: a constructor of the Selector + // node: Node: node or node's id to build the selector on + // params: Object: a dict of parameters, recognized parameters are: + // singular: Boolean: allows selection of only one element, if true + // the rest of parameters are passed to the container + if(!params){ params = {}; } + this.singular = params.singular; + // class-specific variables + this.selection = {}; + this.anchor = null; + this.simpleSelection = false; + // set up events + this.events.push( + dojo.connect(this.node, "onmousedown", this, "onMouseDown"), + dojo.connect(this.node, "onmouseup", this, "onMouseUp")); + }, + + // object attributes (for markup) + singular: false, // is singular property + + // methods + getSelectedNodes: function(){ + // summary: returns a list (an array) of selected nodes + var t = new dojo.NodeList(); + var e = dojo.dnd._empty; + for(var i in this.selection){ + if(i in e){ continue; } + t.push(dojo.byId(i)); + } + return t; // Array + }, + selectNone: function(){ + // summary: unselects all items + return this._removeSelection()._removeAnchor(); // self + }, + selectAll: function(){ + // summary: selects all items + this.forInItems(function(data, id){ + this._addItemClass(dojo.byId(id), "Selected"); + this.selection[id] = 1; + }, this); + return this._removeAnchor(); // self + }, + deleteSelectedNodes: function(){ + // summary: deletes all selected items + var e = dojo.dnd._empty; + for(var i in this.selection){ + if(i in e){ continue; } + var n = dojo.byId(i); + this.delItem(i); + dojo._destroyElement(n); + } + this.anchor = null; + this.selection = {}; + return this; // self + }, + insertNodes: function(addSelected, data, before, anchor){ + // summary: inserts new data items (see Container's insertNodes method for details) + // addSelected: Boolean: all new nodes will be added to selected items, if true, no selection change otherwise + // data: Array: a list of data items, which should be processed by the creator function + // before: Boolean: insert before the anchor, if true, and after the anchor otherwise + // anchor: Node: the anchor node to be used as a point of insertion + var oldCreator = this._normalizedCreator; + this._normalizedCreator = function(item, hint){ + var t = oldCreator.call(this, item, hint); + if(addSelected){ + if(!this.anchor){ + this.anchor = t.node; + this._removeItemClass(t.node, "Selected"); + this._addItemClass(this.anchor, "Anchor"); + }else if(this.anchor != t.node){ + this._removeItemClass(t.node, "Anchor"); + this._addItemClass(t.node, "Selected"); + } + this.selection[t.node.id] = 1; + }else{ + this._removeItemClass(t.node, "Selected"); + this._removeItemClass(t.node, "Anchor"); + } + return t; + }; + dojo.dnd.Selector.superclass.insertNodes.call(this, data, before, anchor); + this._normalizedCreator = oldCreator; + return this; // self + }, + destroy: function(){ + // summary: prepares the object to be garbage-collected + dojo.dnd.Selector.superclass.destroy.call(this); + this.selection = this.anchor = null; + }, + + // markup methods + markupFactory: function(params, node){ + params._skipStartup = true; + return new dojo.dnd.Selector(node, params); + }, + + // mouse events + onMouseDown: function(e){ + // summary: event processor for onmousedown + // e: Event: mouse event + if(!this.current){ return; } + if(!this.singular && !dojo.dnd.getCopyKeyState(e) && !e.shiftKey && (this.current.id in this.selection)){ + this.simpleSelection = true; + dojo.stopEvent(e); + return; + } + if(!this.singular && e.shiftKey){ + if(!dojo.dnd.getCopyKeyState(e)){ + this._removeSelection(); + } + var c = this.getAllNodes(); + if(c.length){ + if(!this.anchor){ + this.anchor = c[0]; + this._addItemClass(this.anchor, "Anchor"); + } + this.selection[this.anchor.id] = 1; + if(this.anchor != this.current){ + var i = 0; + for(; i < c.length; ++i){ + var node = c[i]; + if(node == this.anchor || node == this.current){ break; } + } + for(++i; i < c.length; ++i){ + var node = c[i]; + if(node == this.anchor || node == this.current){ break; } + this._addItemClass(node, "Selected"); + this.selection[node.id] = 1; + } + this._addItemClass(this.current, "Selected"); + this.selection[this.current.id] = 1; + } + } + }else{ + if(this.singular){ + if(this.anchor == this.current){ + if(dojo.dnd.getCopyKeyState(e)){ + this.selectNone(); + } + }else{ + this.selectNone(); + this.anchor = this.current; + this._addItemClass(this.anchor, "Anchor"); + this.selection[this.current.id] = 1; + } + }else{ + if(dojo.dnd.getCopyKeyState(e)){ + if(this.anchor == this.current){ + delete this.selection[this.anchor.id]; + this._removeAnchor(); + }else{ + if(this.current.id in this.selection){ + this._removeItemClass(this.current, "Selected"); + delete this.selection[this.current.id]; + }else{ + if(this.anchor){ + this._removeItemClass(this.anchor, "Anchor"); + this._addItemClass(this.anchor, "Selected"); + } + this.anchor = this.current; + this._addItemClass(this.current, "Anchor"); + this.selection[this.current.id] = 1; + } + } + }else{ + if(!(this.current.id in this.selection)){ + this.selectNone(); + this.anchor = this.current; + this._addItemClass(this.current, "Anchor"); + this.selection[this.current.id] = 1; + } + } + } + } + dojo.stopEvent(e); + }, + onMouseUp: function(e){ + // summary: event processor for onmouseup + // e: Event: mouse event + if(!this.simpleSelection){ return; } + this.simpleSelection = false; + this.selectNone(); + if(this.current){ + this.anchor = this.current; + this._addItemClass(this.anchor, "Anchor"); + this.selection[this.current.id] = 1; + } + }, + onMouseMove: function(e){ + // summary: event processor for onmousemove + // e: Event: mouse event + this.simpleSelection = false; + }, + + // utilities + onOverEvent: function(){ + // summary: this function is called once, when mouse is over our container + this.onmousemoveEvent = dojo.connect(this.node, "onmousemove", this, "onMouseMove"); + }, + onOutEvent: function(){ + // summary: this function is called once, when mouse is out of our container + dojo.disconnect(this.onmousemoveEvent); + delete this.onmousemoveEvent; + }, + _removeSelection: function(){ + // summary: unselects all items + var e = dojo.dnd._empty; + for(var i in this.selection){ + if(i in e){ continue; } + var node = dojo.byId(i); + if(node){ this._removeItemClass(node, "Selected"); } + } + this.selection = {}; + return this; // self + }, + _removeAnchor: function(){ + if(this.anchor){ + this._removeItemClass(this.anchor, "Anchor"); + this.anchor = null; + } + return this; // self + } +}); + +} |