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ComboBox.js

ComboBox.js 18 KB
Cronologia Originale

12345678 
  1. /*
    2. 

  2. 	Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved.
    3. 

  3. 	Available via Academic Free License >= 2.1 OR the modified BSD license.
    4. 

  4. 	see: http://dojotoolkit.org/license for details
    5. 

  5. */
    6. 

  6. 

  7. 

  8. if(!dojo._hasResource["dijit.form.ComboBox"]){dojo._hasResource["dijit.form.ComboBox"]=true;dojo.provide("dijit.form.ComboBox");dojo.require("dijit.form._FormWidget");dojo.require("dijit.form.ValidationTextBox");dojo.require("dojo.data.util.simpleFetch");dojo.require("dojo.data.util.filter");dojo.require("dojo.regexp");dojo.requireLocalization("dijit.form","ComboBox",null,"ROOT,ar,ca,cs,da,de,el,es,fi,fr,he,hu,it,ja,ko,nb,nl,pl,pt,pt-pt,ru,sk,sl,sv,th,tr,zh,zh-tw");dojo.declare("dijit.form.ComboBoxMixin",null,{item:null,pageSize:Infinity,store:null,fetchProperties:{},query:{},autoComplete:true,highlightMatch:"first",searchDelay:100,searchAttr:"name",labelAttr:"",labelType:"text",queryExpr:"${0}*",ignoreCase:true,hasDownArrow:true,templateString:dojo.cache("dijit.form","templates/ComboBox.html","<div class=\"dijit dijitReset dijitInlineTable dijitLeft\"\n\tid=\"widget_${id}\"\n\tdojoAttachEvent=\"onmouseenter:_onMouse,onmouseleave:_onMouse,onmousedown:_onMouse\" dojoAttachPoint=\"comboNode\" waiRole=\"combobox\" tabIndex=\"-1\"\n\t><div style=\"overflow:hidden;\"\n\t\t><div class='dijitReset dijitRight dijitButtonNode dijitArrowButton dijitDownArrowButton'\n\t\t\tdojoAttachPoint=\"downArrowNode\" waiRole=\"presentation\"\n\t\t\tdojoAttachEvent=\"onmousedown:_onArrowMouseDown,onmouseup:_onMouse,onmouseenter:_onMouse,onmouseleave:_onMouse\"\n\t\t\t><div class=\"dijitArrowButtonInner\">&thinsp;</div\n\t\t\t><div class=\"dijitArrowButtonChar\">&#9660;</div\n\t\t></div\n\t\t><div class=\"dijitReset dijitValidationIcon\"><br></div\n\t\t><div class=\"dijitReset dijitValidationIconText\">&Chi;</div\n\t\t><div class=\"dijitReset dijitInputField\"\n\t\t\t><input ${nameAttrSetting} type=\"text\" autocomplete=\"off\" class='dijitReset'\n\t\t\tdojoAttachEvent=\"onkeypress:_onKeyPress,compositionend\"\n\t\t\tdojoAttachPoint=\"textbox,focusNode\" waiRole=\"textbox\" waiState=\"haspopup-true,autocomplete-list\"\n\t\t/></div\n\t></div\n></div>\n"),baseClass:"dijitComboBox",_getCaretPos:function(_1){var _2=0;if(typeof (_1.selectionStart)=="number"){_2=_1.selectionStart;}else{if(dojo.isIE){var tr=dojo.doc.selection.createRange().duplicate();var _3=_1.createTextRange();tr.move("character",0);_3.move("character",0);try{_3.setEndPoint("EndToEnd",tr);_2=String(_3.text).replace(/\r/g,"").length;}catch(e){}}}return _2;},_setCaretPos:function(_4,_5){_5=parseInt(_5);dijit.selectInputText(_4,_5,_5);},_setDisabledAttr:function(_6){this.inherited(arguments);dijit.setWaiState(this.comboNode,"disabled",_6);},_abortQuery:function(){if(this.searchTimer){clearTimeout(this.searchTimer);this.searchTimer=null;}if(this._fetchHandle){if(this._fetchHandle.abort){this._fetchHandle.abort();}this._fetchHandle=null;}},_onKeyPress:function(_7){var _8=_7.charOrCode;if(_7.altKey||((_7.ctrlKey||_7.metaKey)&&(_8!="x"&&_8!="v"))||_8==dojo.keys.SHIFT){return;}var _9=false;var _a="_startSearchFromInput";var pw=this._popupWidget;var dk=dojo.keys;var _b=null;this._prev_key_backspace=false;this._abortQuery();if(this._isShowingNow){pw.handleKey(_8);_b=pw.getHighlightedOption();}switch(_8){case dk.PAGE_DOWN:case dk.DOWN_ARROW:case dk.PAGE_UP:case dk.UP_ARROW:if(!this._isShowingNow){this._arrowPressed();_9=true;_a="_startSearchAll";}else{this._announceOption(_b);}dojo.stopEvent(_7);break;case dk.ENTER:if(_b){if(_b==pw.nextButton){this._nextSearch(1);dojo.stopEvent(_7);break;}else{if(_b==pw.previousButton){this._nextSearch(-1);dojo.stopEvent(_7);break;}}}else{this._setBlurValue();this._setCaretPos(this.focusNode,this.focusNode.value.length);}_7.preventDefault();case dk.TAB:var _c=this.attr("displayedValue");if(pw&&(_c==pw._messages["previousMessage"]||_c==pw._messages["nextMessage"])){break;}if(_b){this._selectOption();}if(this._isShowingNow){this._lastQuery=null;this._hideResultList();}break;case " ":if(_b){dojo.stopEvent(_7);this._selectOption();this._hideResultList();}else{_9=true;}break;case dk.ESCAPE:if(this._isShowingNow){dojo.stopEvent(_7);this._hideResultList();}break;case dk.DELETE:case dk.BACKSPACE:this._prev_key_backspace=true;_9=true;break;default:_9=typeof _8=="string"||_8==229;}if(_9){this.item=undefined;this.searchTimer=setTimeout(dojo.hitch(this,_a),1);}},_autoCompleteText:function(_d){var fn=this.focusNode;dijit.selectInputText(fn,fn.value.length);var _e=this.ignoreCase?"toLowerCase":"substr";if(_d[_e](0).indexOf(this.focusNode.value[_e](0))==0){var _f=this._getCaretPos(fn);if((_f+1)>fn.value.length){fn.value=_d;dijit.selectInputText(fn,_f);}}else{fn.value=_d;dijit.selectInputText(fn);}},_openResultList:function(_10,_11){this._fetchHandle=null;if(this.disabled||this.readOnly||(_11.query[this.searchAttr]!=this._lastQuery)){return;}this._popupWidget.clearResultList();if(!_10.length){this._hideResultList();return;}_11._maxOptions=this._maxOptions;var _12=this._popupWidget.createOptions(_10,_11,dojo.hitch(this,"_getMenuLabelFromItem"));this._showResultList();if(_11.direction){if(1==_11.direction){this._popupWidget.highlightFirstOption();}else{if(-1==_11.direction){this._popupWidget.highlightLastOption();}}this._announceOption(this._popupWidget.getHighlightedOption());}else{if(this.autoComplete&&!this._prev_key_backspace&&!/^[*]+$/.test(_11.query[this.searchAttr])){this._announceOption(_12[1]);}}},_showResultList:function(){this._hideResultList();this._arrowPressed();this.displayMessage("");dojo.style(this._popupWidget.domNode,{width:"",height:""});var _13=this.open();var _14=dojo.marginBox(this._popupWidget.domNode);this._popupWidget.domNode.style.overflow=((_13.h==_14.h)&&(_13.w==_14.w))?"hidden":"auto";var _15=_13.w;if(_13.h<this._popupWidget.domNode.scrollHeight){_15+=16;}dojo.marginBox(this._popupWidget.domNode,{h:_13.h,w:Math.max(_15,this.domNode.offsetWidth)});if(_15<this.domNode.offsetWidth){this._popupWidget.domNode.parentNode.style.left=dojo.position(this.domNode).x+"px";}dijit.setWaiState(this.comboNode,"expanded","true");},_hideResultList:function(){this._abortQuery();if(this._isShowingNow){dijit.popup.close(this._popupWidget);this._arrowIdle();this._isShowingNow=false;dijit.setWaiState(this.comboNode,"expanded","false");dijit.removeWaiState(this.focusNode,"activedescendant");}},_setBlurValue:function(){var _16=this.attr("displayedValue");var pw=this._popupWidget;if(pw&&(_16==pw._messages["previousMessage"]||_16==pw._messages["nextMessage"])){this._setValueAttr(this._lastValueReported,true);}else{if(typeof this.item=="undefined"){this.item=null;this.attr("displayedValue",_16);}else{if(this.value!=this._lastValueReported){dijit.form._FormValueWidget.prototype._setValueAttr.call(this,this.value,true);}this._refreshState();}}},_onBlur:function(){this._hideResultList();this._arrowIdle();this.inherited(arguments);},_setItemAttr:function(_17,_18,_19){if(!_19){_19=this.labelFunc(_17,this.store);}this.value=this._getValueField()!=this.searchAttr?this.store.getIdentity(_17):_19;this.item=_17;dijit.form.ComboBox.superclass._setValueAttr.call(this,this.value,_18,_19);},_announceOption:function(_1a){if(!_1a){return;}var _1b;if(_1a==this._popupWidget.nextButton||_1a==this._popupWidget.previousButton){_1b=_1a.innerHTML;this.item=undefined;this.value="";}else{_1b=this.labelFunc(_1a.item,this.store);this.attr("item",_1a.item,false,_1b);}this.focusNode.value=this.focusNode.value.substring(0,this._lastInput.length);dijit.setWaiState(this.focusNode,"activedescendant",dojo.attr(_1a,"id"));this._autoCompleteText(_1b);},_selectOption:function(evt){if(evt){this._announceOption(evt.target);}this._hideResultList();this._setCaretPos(this.focusNode,this.focusNode.value.length);dijit.form._FormValueWidget.prototype._setValueAttr.call(this,this.value,true);},_onArrowMouseDown:function(evt){if(this.disabled||this.readOnly){return;}dojo.stopEvent(evt);this.focus();if(this._isShowingNow){this._hideResultList();}else{this._startSearchAll();}},_startSearchAll:function(){this._startSearch("");},_startSearchFromInput:function(){this._startSearch(this.focusNode.value.replace(/([\\\*\?])/g,"\\$1"));},_getQueryString:function(_1c){return dojo.string.substitute(this.queryExpr,[_1c]);},_startSearch:function(key){if(!this._popupWidget){var _1d=this.id+"_popup";this._popupWidget=new dijit.form._ComboBoxMenu({onChange:dojo.hitch(this,this._selectOption),id:_1d});dijit.removeWaiState(this.focusNode,"activedescendant");dijit.setWaiState(this.textbox,"owns",_1d);}var _1e=dojo.clone(this.query);this._lastInput=key;this._lastQuery=_1e[this.searchAttr]=this._getQueryString(key);this.searchTimer=setTimeout(dojo.hitch(this,function(_1f,_20){this.searchTimer=null;var _21={queryOptions:{ignoreCase:this.ignoreCase,deep:true},query:_1f,onBegin:dojo.hitch(this,"_setMaxOptions"),onComplete:dojo.hitch(this,"_openResultList"),onError:function(_22){_20._fetchHandle=null;console.error("dijit.form.ComboBox: "+_22);dojo.hitch(_20,"_hideResultList")();},start:0,count:this.pageSize};dojo.mixin(_21,_20.fetchProperties);this._fetchHandle=_20.store.fetch(_21);var _23=function(_24,_25){_24.start+=_24.count*_25;_24.direction=_25;this._fetchHandle=this.store.fetch(_24);};this._nextSearch=this._popupWidget.onPage=dojo.hitch(this,_23,this._fetchHandle);},_1e,this),this.searchDelay);},_setMaxOptions:function(_26,_27){this._maxOptions=_26;},_getValueField:function(){return this.searchAttr;},_arrowPressed:function(){if(!this.disabled&&!this.readOnly&&this.hasDownArrow){dojo.addClass(this.downArrowNode,"dijitArrowButtonActive");}},_arrowIdle:function(){if(!this.disabled&&!this.readOnly&&this.hasDownArrow){dojo.removeClass(this.downArrowNode,"dojoArrowButtonPushed");}},compositionend:function(evt){this._onKeyPress({charOrCode:229});},constructor:function(){this.query={};this.fetchProperties={};},postMixInProperties:function(){if(!this.hasDownArrow){this.baseClass="dijitTextBox";}if(!this.store){var _28=this.srcNodeRef;this.store=new dijit.form._ComboBoxDataStore(_28);if(!this.value||((typeof _28.selectedIndex=="number")&&_28.selectedIndex.toString()===this.value)){var _29=this.store.fetchSelectedItem();if(_29){var _2a=this._getValueField();this.value=_2a!=this.searchAttr?this.store.getValue(_29,_2a):this.labelFunc(_29,this.store);}}}this.inherited(arguments);},postCreate:function(){var _2b=dojo.query("label[for=\""+this.id+"\"]");if(_2b.length){_2b[0].id=(this.id+"_label");var cn=this.comboNode;dijit.setWaiState(cn,"labelledby",_2b[0].id);}this.inherited(arguments);},uninitialize:function(){if(this._popupWidget&&!this._popupWidget._destroyed){this._hideResultList();this._popupWidget.destroy();}this.inherited(arguments);},_getMenuLabelFromItem:function(_2c){var _2d=this.labelAttr?this.store.getValue(_2c,this.labelAttr):this.labelFunc(_2c,this.store);var _2e=this.labelType;if(this.highlightMatch!="none"&&this.labelType=="text"&&this._lastInput){_2d=this.doHighlight(_2d,this._escapeHtml(this._lastInput));_2e="html";}return {html:_2e=="html",label:_2d};},doHighlight:function(_2f,_30){var _31="i"+(this.highlightMatch=="all"?"g":"");var _32=this._escapeHtml(_2f);_30=dojo.regexp.escapeString(_30);var ret=_32.replace(new RegExp("(^|\\s)("+_30+")",_31),"$1<span class=\"dijitComboBoxHighlightMatch\">$2</span>");return ret;},_escapeHtml:function(str){str=String(str).replace(/&/gm,"&amp;").replace(/</gm,"&lt;").replace(/>/gm,"&gt;").replace(/"/gm,"&quot;");return str;},open:function(){this._isShowingNow=true;return dijit.popup.open({popup:this._popupWidget,around:this.domNode,parent:this});},reset:function(){this.item=null;this.inherited(arguments);},labelFunc:function(_33,_34){return _34.getValue(_33,this.searchAttr).toString();}});dojo.declare("dijit.form._ComboBoxMenu",[dijit._Widget,dijit._Templated],{templateString:"<ul class='dijitReset dijitMenu' dojoAttachEvent='onmousedown:_onMouseDown,onmouseup:_onMouseUp,onmouseover:_onMouseOver,onmouseout:_onMouseOut' tabIndex='-1' style='overflow: \"auto\"; overflow-x: \"hidden\";'>"+"<li class='dijitMenuItem dijitMenuPreviousButton' dojoAttachPoint='previousButton' waiRole='option'></li>"+"<li class='dijitMenuItem dijitMenuNextButton' dojoAttachPoint='nextButton' waiRole='option'></li>"+"</ul>",_messages:null,postMixInProperties:function(){this._messages=dojo.i18n.getLocalization("dijit.form","ComboBox",this.lang);this.inherited(arguments);},_setValueAttr:function(_35){this.value=_35;this.onChange(_35);},onChange:function(_36){},onPage:function(_37){},postCreate:function(){this.previousButton.innerHTML=this._messages["previousMessage"];this.nextButton.innerHTML=this._messages["nextMessage"];this.inherited(arguments);},onClose:function(){this._blurOptionNode();},_createOption:function(_38,_39){var _3a=_39(_38);var _3b=dojo.doc.createElement("li");dijit.setWaiRole(_3b,"option");if(_3a.html){_3b.innerHTML=_3a.label;}else{_3b.appendChild(dojo.doc.createTextNode(_3a.label));}if(_3b.innerHTML==""){_3b.innerHTML="&nbsp;";}_3b.item=_38;return _3b;},createOptions:function(_3c,_3d,_3e){this.previousButton.style.display=(_3d.start==0)?"none":"";dojo.attr(this.previousButton,"id",this.id+"_prev");dojo.forEach(_3c,function(_3f,i){var _40=this._createOption(_3f,_3e);_40.className="dijitReset dijitMenuItem";dojo.attr(_40,"id",this.id+i);this.domNode.insertBefore(_40,this.nextButton);},this);var _41=false;if(_3d._maxOptions&&_3d._maxOptions!=-1){if((_3d.start+_3d.count)<_3d._maxOptions){_41=true;}else{if((_3d.start+_3d.count)>(_3d._maxOptions-1)){if(_3d.count==_3c.length){_41=true;}}}}else{if(_3d.count==_3c.length){_41=true;}}this.nextButton.style.display=_41?"":"none";dojo.attr(this.nextButton,"id",this.id+"_next");return this.domNode.childNodes;},clearResultList:function(){while(this.domNode.childNodes.length>2){this.domNode.removeChild(this.domNode.childNodes[this.domNode.childNodes.length-2]);}},_onMouseDown:function(evt){dojo.stopEvent(evt);},_onMouseUp:function(evt){if(evt.target===this.domNode){return;}else{if(evt.target==this.previousButton){this.onPage(-1);}else{if(evt.target==this.nextButton){this.onPage(1);}else{var tgt=evt.target;while(!tgt.item){tgt=tgt.parentNode;}this._setValueAttr({target:tgt},true);}}}},_onMouseOver:function(evt){if(evt.target===this.domNode){return;}var tgt=evt.target;if(!(tgt==this.previousButton||tgt==this.nextButton)){while(!tgt.item){tgt=tgt.parentNode;}}this._focusOptionNode(tgt);},_onMouseOut:function(evt){if(evt.target===this.domNode){return;}this._blurOptionNode();},_focusOptionNode:function(_42){if(this._highlighted_option!=_42){this._blurOptionNode();this._highlighted_option=_42;dojo.addClass(this._highlighted_option,"dijitMenuItemSelected");}},_blurOptionNode:function(){if(this._highlighted_option){dojo.removeClass(this._highlighted_option,"dijitMenuItemSelected");this._highlighted_option=null;}},_highlightNextOption:function(){var fc=this.domNode.firstChild;if(!this.getHighlightedOption()){this._focusOptionNode(fc.style.display=="none"?fc.nextSibling:fc);}else{var ns=this._highlighted_option.nextSibling;if(ns&&ns.style.display!="none"){this._focusOptionNode(ns);}}dijit.scrollIntoView(this._highlighted_option);},highlightFirstOption:function(){this._focusOptionNode(this.domNode.firstChild.nextSibling);dijit.scrollIntoView(this._highlighted_option);},highlightLastOption:function(){this._focusOptionNode(this.domNode.lastChild.previousSibling);dijit.scrollIntoView(this._highlighted_option);},_highlightPrevOption:function(){var lc=this.domNode.lastChild;if(!this.getHighlightedOption()){this._focusOptionNode(lc.style.display=="none"?lc.previousSibling:lc);}else{var ps=this._highlighted_option.previousSibling;if(ps&&ps.style.display!="none"){this._focusOptionNode(ps);}}dijit.scrollIntoView(this._highlighted_option);},_page:function(up){var _43=0;var _44=this.domNode.scrollTop;var _45=dojo.style(this.domNode,"height");if(!this.getHighlightedOption()){this._highlightNextOption();}while(_43<_45){if(up){if(!this.getHighlightedOption().previousSibling||this._highlighted_option.previousSibling.style.display=="none"){break;}this._highlightPrevOption();}else{if(!this.getHighlightedOption().nextSibling||this._highlighted_option.nextSibling.style.display=="none"){break;}this._highlightNextOption();}var _46=this.domNode.scrollTop;_43+=(_46-_44)*(up?-1:1);_44=_46;}},pageUp:function(){this._page(true);},pageDown:function(){this._page(false);},getHighlightedOption:function(){var ho=this._highlighted_option;return (ho&&ho.parentNode)?ho:null;},handleKey:function(key){switch(key){case dojo.keys.DOWN_ARROW:this._highlightNextOption();break;case dojo.keys.PAGE_DOWN:this.pageDown();break;case dojo.keys.UP_ARROW:this._highlightPrevOption();break;case dojo.keys.PAGE_UP:this.pageUp();break;}}});dojo.declare("dijit.form.ComboBox",[dijit.form.ValidationTextBox,dijit.form.ComboBoxMixin],{_setValueAttr:function(_47,_48,_49){this.item=null;if(!_47){_47="";}dijit.form.ValidationTextBox.prototype._setValueAttr.call(this,_47,_48,_49);}});dojo.declare("dijit.form._ComboBoxDataStore",null,{constructor:function(_4a){this.root=_4a;dojo.query("> option",_4a).forEach(function(_4b){_4b.innerHTML=dojo.trim(_4b.innerHTML);});},getValue:function(_4c,_4d,_4e){return (_4d=="value")?_4c.value:(_4c.innerText||_4c.textContent||"");},isItemLoaded:function(_4f){return true;},getFeatures:function(){return {"dojo.data.api.Read":true,"dojo.data.api.Identity":true};},_fetchItems:function(_50,_51,_52){if(!_50.query){_50.query={};}if(!_50.query.name){_50.query.name="";}if(!_50.queryOptions){_50.queryOptions={};}var _53=dojo.data.util.filter.patternToRegExp(_50.query.name,_50.queryOptions.ignoreCase),_54=dojo.query("> option",this.root).filter(function(_55){return (_55.innerText||_55.textContent||"").match(_53);});if(_50.sort){_54.sort(dojo.data.util.sorter.createSortFunction(_50.sort,this));}_51(_54,_50);},close:function(_56){return;},getLabel:function(_57){return _57.innerHTML;},getIdentity:function(_58){return dojo.attr(_58,"value");},fetchItemByIdentity:function(_59){var _5a=dojo.query("option[value='"+_59.identity+"']",this.root)[0];_59.onItem(_5a);},fetchSelectedItem:function(){var _5b=this.root,si=_5b.selectedIndex;return dojo.query("> option:nth-child("+(si!=-1?si+1:1)+")",_5b)[0];}});dojo.extend(dijit.form._ComboBoxDataStore,dojo.data.util.simpleFetch);}
    9.