{
  "version": 3,
  "sources": ["node_modules/imba/src/imba/dom/bind.imba"],
  "sourcesContent": ["import {\n\tElement,\n\tHTMLSelectElement,\n\tHTMLInputElement,\n\tHTMLButtonElement,\n\tHTMLTextAreaElement,\n\tHTMLOptionElement\n} from './core'\n\nimport {commit} from '../scheduler'\n\n# TODO use meta properties for $$value, $$bound etc\n\nexport def use_dom_bind\n\tyes\n\nconst toBind = {\n\tINPUT: yes\n\tSELECT: yes\n\tTEXTAREA: yes\n\tBUTTON: yes\n}\n\nlet isGroup = do(obj)\n\treturn obj isa Array or (obj && obj.has isa Function)\n\nlet bindHas = do(object,value)\n\tif object == value\n\t\treturn true\n\telif object isa Array\n\t\tobject.indexOf(value) >= 0\n\telif object and object.has isa Function\n\t\tobject.has(value)\n\telif object and object.contains isa Function\n\t\tobject.contains(value)\n\telse\n\t\treturn false\n\nlet bindAdd = do(object,value)\n\tif object isa Array\n\t\tobject.push(value)\n\telif object and object.add isa Function\n\t\tobject.add(value)\n\nlet bindRemove = do(object,value)\n\tif object isa Array\n\t\tlet idx = object.indexOf(value)\n\t\tobject.splice(idx,1) if idx >= 0\n\telif object and object.delete isa Function\n\t\tobject.delete(value)\n\ndef createProxyProperty target\n\tdef getter\n\t\ttarget[0] ? target[0][target[1]] : undefined\n\n\tdef setter v\n\t\ttarget[0] ? (target[0][target[1]] = v) : null\n\n\treturn {\n\t\tget: getter\n\t\tset: setter\n\t}\n\n###\nData binding\n###\nextend class Element\n\tdef getRichValue\n\t\tself.value\n\n\tdef setRichValue value\n\t\tself.value = value\n\t\n\tdef bind$ key, value\n\t\tlet o = value or []\n\n\t\tif key == 'data' and !$$bound and toBind[nodeName]\n\t\t\t$$bound = yes\n\t\t\tif change$\n\t\t\t\taddEventListener('change',change$ = change$.bind(this))\n\t\t\tif input$\n\t\t\t\taddEventListener('input',input$ = input$.bind(this),capture: yes)\n\t\t\tif click$\n\t\t\t\taddEventListener('click',click$ = click$.bind(this),capture: yes)\n\t\t\t# this.on$('change',{_change$: true},this) if this.change$\n\t\t\t# this.on$('input',{capture: true,_input$: true},this) if this.input$\n\n\t\tObject.defineProperty(self,key,o isa Array ? createProxyProperty(o) : o)\n\t\treturn o\n\nObject.defineProperty(Element.prototype,'richValue',{\n\tget: do this.getRichValue()\n\tset: do(v) this.setRichValue(v)\n})\n\nextend class HTMLSelectElement\n\n\tdef change$ e\n\t\tlet model = self.data\n\t\tlet prev = $$value\n\t\t$$value = undefined\n\t\tlet values = self.getRichValue()\n\n\t\tif self.multiple\n\t\t\tif prev\n\t\t\t\tfor value in prev when values.indexOf(value) == -1\n\t\t\t\t\tbindRemove(model,value)\n\n\t\t\tfor value in values\n\t\t\t\tif !prev or prev.indexOf(value) == -1\n\t\t\t\t\tbindAdd(model,value)\n\t\telse\n\t\t\tself.data = values[0]\n\t\tcommit!\n\t\tself\n\n\tdef getRichValue\n\t\tif $$value\n\t\t\treturn $$value\n\n\t\t$$value = for o in self.selectedOptions\n\t\t\to.richValue\n\n\tdef syncValue\n\t\tlet model = self.data\n\n\t\tif self.multiple\n\t\t\tlet vals = []\n\t\t\tfor option,i in self.options\n\t\t\t\tlet val = option.richValue\n\t\t\t\tlet sel = bindHas(model,val)\n\t\t\t\toption.selected = sel\n\t\t\t\tvals.push(val) if sel\n\t\t\t$$value = vals\n\n\t\telse\n\t\t\tfor option,i in self.options\n\t\t\t\tlet val = option.richValue\n\t\t\t\tif val == model\n\t\t\t\t\t$$value = [val]\n\t\t\t\t\tbreak self.selectedIndex = i\n\t\treturn\n\n\tdef #afterVisit\n\t\tself.syncValue()\n\nextend class HTMLOptionElement\n\tdef setRichValue value\n\t\t$$value = value\n\t\tself.value = value\n\n\tdef getRichValue\n\t\tif $$value !== undefined\n\t\t\treturn $$value\n\t\treturn self.value\n\nextend class HTMLTextAreaElement\n\tdef setRichValue value\n\t\t$$value = value\n\t\tself.value = value\n\n\tdef getRichValue\n\t\tif $$value !== undefined\n\t\t\treturn $$value\n\t\treturn self.value\n\n\tdef input$ e\n\t\tself.data = self.value\n\t\tcommit!\n\n\tdef #afterVisit\n\t\tif $$bound and self.value != self.data\n\t\t\tself.value = self.data\n\n\n\nextend class HTMLInputElement\n\t\n\tdef input$ e\n\t\tlet typ = self.type\n\n\t\tif typ == 'checkbox' or typ == 'radio'\n\t\t\treturn\n\n\t\t$$value = undefined\n\t\tself.data = self.richValue\n\t\tcommit!\n\n\tdef change$ e\n\t\tlet model = self.data\n\t\tlet val = self.richValue\n\n\t\tif self.type == 'checkbox' or self.type == 'radio'\n\t\t\tlet checked = self.checked\n\t\t\tif isGroup(model)\n\t\t\t\tchecked ? bindAdd(model,val) : bindRemove(model,val)\n\t\t\telse\n\t\t\t\tself.data = checked ? val : false\n\t\tcommit!\n\n\tdef setRichValue value\n\t\tif $$value !== value\n\t\t\t$$value = value\n\n\t\t\tif self.value !== value\n\t\t\t\tself.value = value\n\t\treturn\n\n\tdef getRichValue\n\t\tif $$value !== undefined\n\t\t\treturn $$value\n\n\t\tlet value = self.value\n\t\tlet typ = self.type\n\n\t\tif typ == 'range' or typ == 'number'\n\t\t\tvalue = self.valueAsNumber\n\t\t\tvalue = null if Number.isNaN(value)\n\t\telif typ == 'checkbox'\n\t\t\tvalue = true if value == undefined or value === 'on'\n\n\t\treturn value\n\n\tdef #afterVisit\n\t\tif $$bound\n\t\t\tlet typ = self.type\n\t\t\tif typ == 'checkbox' or typ == 'radio'\n\t\t\t\tlet val = self.data\n\t\t\t\tif val === true or val === false or val == null\n\t\t\t\t\tself.checked = !!val\n\t\t\t\telse\n\t\t\t\t\tself.checked = bindHas(val,self.richValue)\n\t\t\telse\n\t\t\t\tself.richValue = self.data\n\t\treturn\n\t\t\nextend class HTMLButtonElement\n\n\tget checked\n\t\t$checked\n\t\t\n\tset checked val\n\t\tif val != $checked\n\t\t\t$checked = val\n\t\t\tflags.toggle('checked',!!val)\n\t\n\tdef setRichValue value\n\t\t$$value = value\n\t\tself.value = value\n\n\tdef getRichValue\n\t\tif $$value !== undefined\n\t\t\treturn $$value\n\t\treturn self.value\n\t\t\n\tdef click$ e\n\t\tlet data = self.data\n\t\tlet toggled = self.checked\n\t\tlet val = self.richValue\n\t\t# if self.type == 'checkbox' or self.type == 'radio'\n\t\tif isGroup(data)\n\t\t\ttoggled ? bindRemove(data,val) : bindAdd(data,val)\n\t\telif $$value == undefined\n\t\t\tself.data = toggled ? false : true\n\t\telse\n\t\t\tself.data = toggled ? null : val\n\t\t#afterVisit!\n\t\tcommit!\n\n\tdef #afterVisit\n\t\tif $$bound\n\t\t\tlet data = self.data\n\t\t\tlet val = $$value == undefined ? yes : $$value\n\t\t\t\n\t\t\tif isGroup(data)\n\t\t\t\tself.checked = bindHas(data,val)\n\t\t\telse\n\t\t\t\tself.checked = data == val\n\t\treturn"],
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