grid.js

ext js demo ext学习资料

Ext.grid.AbstractSelectionModel=function(){this.locked=false;Ext.grid.AbstractSelectionModel.superclass.constructor.call(this);};Ext.extend(Ext.grid.AbstractSelectionModel,Ext.util.Observable,{init:function(_1){this.grid=_1;this.initEvents();},lock:function(){this.locked=true;},unlock:function(){this.locked=false;},isLocked:function(){return this.locked;}});

Ext.grid.RowSelectionModel=function(_1){Ext.apply(this,_1);this.selections=new Ext.util.MixedCollection(false,function(o){return o.id;});this.last=false;this.lastActive=false;this.addEvents({"selectionchange":true,"beforerowselect":true,"rowselect":true,"rowdeselect":true});this.locked=false;};Ext.extend(Ext.grid.RowSelectionModel,Ext.grid.AbstractSelectionModel,{singleSelect:false,initEvents:function(){if(!this.grid.enableDragDrop&&!this.grid.enableDrag){this.grid.on("mousedown",this.handleMouseDown,this);}else{this.grid.on("rowclick",function(_3,_4,e){if(e.button===0&&!e.shiftKey&&!e.ctrlKey){this.selectRow(_4,false);_3.view.focusRow(_4);}},this);}this.rowNav=new Ext.KeyNav(this.grid.getGridEl(),{"up":function(e){if(!e.shiftKey){this.selectPrevious(e.shiftKey);}else{if(this.last!==false&&this.lastActive!==false){var _7=this.last;this.selectRange(this.last,this.lastActive-1);this.grid.getView().focusRow(this.lastActive);if(_7!==false){this.last=_7;}}else{this.selectFirstRow();}}},"down":function(e){if(!e.shiftKey){this.selectNext(e.shiftKey);}else{if(this.last!==false&&this.lastActive!==false){var _9=this.last;this.selectRange(this.last,this.lastActive+1);this.grid.getView().focusRow(this.lastActive);if(_9!==false){this.last=_9;}}else{this.selectFirstRow();}}},scope:this});var _a=this.grid.view;_a.on("refresh",this.onRefresh,this);_a.on("rowupdated",this.onRowUpdated,this);_a.on("rowremoved",this.onRemove,this);},onRefresh:function(){var ds=this.grid.dataSource,i,v=this.grid.view;var s=this.selections;s.each(function(r){if((i=ds.indexOfId(r.id))!=-1){v.onRowSelect(i);}else{s.remove(r);}});},onRemove:function(v,_11,r){this.selections.remove(r);},onRowUpdated:function(v,_14,r){if(this.isSelected(r)){v.onRowSelect(_14);}},selectRecords:function(_16,_17){if(!_17){this.clearSelections();}var ds=this.grid.dataSource;for(var i=0,len=_16.length;i<len;i++){this.selectRow(ds.indexOf(_16[i]),true);}},getCount:function(){return this.selections.length;},selectFirstRow:function(){this.selectRow(0);},selectLastRow:function(_1b){this.selectRow(this.grid.dataSource.getCount()-1,_1b);},selectNext:function(_1c){if(this.last!==false&&(this.last+1)<this.grid.dataSource.getCount()){this.selectRow(this.last+1,_1c);this.grid.getView().focusRow(this.last);}},selectPrevious:function(_1d){if(this.last){this.selectRow(this.last-1,_1d);this.grid.getView().focusRow(this.last);}},getSelections:function(){return[].concat(this.selections.items);},getSelected:function(){return this.selections.itemAt(0);},clearSelections:function(_1e){if(this.locked){return;}if(_1e!==true){var ds=this.grid.dataSource;var s=this.selections;s.each(function(r){this.deselectRow(ds.indexOfId(r.id));},this);s.clear();}else{this.selections.clear();}this.last=false;},selectAll:function(){if(this.locked){return;}this.selections.clear();for(var i=0,len=this.grid.dataSource.getCount();i<len;i++){this.selectRow(i,true);}},hasSelection:function(){return this.selections.length>0;},isSelected:function(_24){var r=typeof _24=="number"?this.grid.dataSource.getAt(_24):_24;return(r&&this.selections.key(r.id)?true:false);},isIdSelected:function(id){return(this.selections.key(id)?true:false);},handleMouseDown:function(e,t){var _29=this.grid.getView(),_2a;if(this.isLocked()||(_2a=_29.findRowIndex(t))===false){return;}if(e.shiftKey&&this.last!==false){var _2b=this.last;this.selectRange(_2b,_2a,e.ctrlKey);this.last=_2b;_29.focusRow(_2a);}else{var _2c=this.isSelected(_2a);if(e.button!=0&&_2c){_29.focusRow(_2a);}else{if(e.ctrlKey&&_2c){this.deselectRow(_2a);}else{this.selectRow(_2a,e.button==0&&(e.ctrlKey||e.shiftKey));_29.focusRow(_2a);}}}},selectRows:function(_2d,_2e){if(!_2e){this.clearSelections();}for(var i=0,len=_2d.length;i<len;i++){this.selectRow(_2d[i],true);}},selectRange:function(_31,_32,_33){if(this.locked){return;}if(!_33){this.clearSelections();}if(_31<=_32){for(var i=_31;i<=_32;i++){this.selectRow(i,true);}}else{for(var i=_31;i>=_32;i--){this.selectRow(i,true);}}},deselectRange:function(_35,_36,_37){if(this.locked){return;}for(var i=_35;i<=_36;i++){this.deselectRow(i,_37);}},selectRow:function(_39,_3a,_3b){if(this.locked||(_39<0||_39>=this.grid.dataSource.getCount())){return;}if(this.fireEvent("beforerowselect",this,_39,_3a)!==false){if(!_3a||this.singleSelect){this.clearSelections();}var r=this.grid.dataSource.getAt(_39);this.selections.add(r);this.last=this.lastActive=_39;if(!_3b){this.grid.getView().onRowSelect(_39);}this.fireEvent("rowselect",this,_39,r);this.fireEvent("selectionchange",this);}},deselectRow:function(_3d,_3e){if(this.locked){return;}if(this.last==_3d){this.last=false;}if(this.lastActive==_3d){this.lastActive=false;}var r=this.grid.dataSource.getAt(_3d);this.selections.remove(r);if(!_3e){this.grid.getView().onRowDeselect(_3d);}this.fireEvent("rowdeselect",this,_3d);this.fireEvent("selectionchange",this);},restoreLast:function(){if(this._last){this.last=this._last;}},acceptsNav:function(row,col,cm){return!cm.isHidden(col)&&cm.isCellEditable(col,row);},onEditorKey:function(_43,e){var k=e.getKey(),_46,g=this.grid,ed=g.activeEditor;if(k==e.TAB){e.stopEvent();ed.completeEdit();if(e.shiftKey){_46=g.walkCells(ed.row,ed.col-1,-1,this.acceptsNav,this);}else{_46=g.walkCells(ed.row,ed.col+1,1,this.acceptsNav,this);}}else{if(k==e.ENTER&&!e.ctrlKey){e.stopEvent();ed.completeEdit();if(e.shiftKey){_46=g.walkCells(ed.row-1,ed.col,-1,this.acceptsNav,this);}else{_46=g.walkCells(ed.row+1,ed.col,1,this.acceptsNav,this);}}else{if(k==e.ESC){ed.cancelEdit();}}}if(_46){g.startEditing(_46[0],_46[1]);}}});

Ext.grid.CellSelectionModel=function(_1){Ext.apply(this,_1);this.selection=null;this.addEvents({"beforecellselect":true,"cellselect":true,"selectionchange":true});};Ext.extend(Ext.grid.CellSelectionModel,Ext.grid.AbstractSelectionModel,{initEvents:function(){this.grid.on("mousedown",this.handleMouseDown,this);this.grid.getGridEl().on(Ext.isIE?"keydown":"keypress",this.handleKeyDown,this);var _2=this.grid.view;_2.on("refresh",this.onViewChange,this);_2.on("rowupdated",this.onRowUpdated,this);_2.on("beforerowremoved",this.clearSelections,this);_2.on("beforerowsinserted",this.clearSelections,this);if(this.grid.isEditor){this.grid.on("beforeedit",this.beforeEdit,this);}},beforeEdit:function(e){this.select(e.row,e.column,false,true,e.record);},onRowUpdated:function(v,_5,r){if(this.selection&&this.selection.record==r){v.onCellSelect(_5,this.selection.cell[1]);}},onViewChange:function(){this.clearSelections(true);},getSelectedCell:function(){return this.selection?this.selection.cell:null;},clearSelections:function(_7){var s=this.selection;if(s){if(_7!==true){this.grid.view.onCellDeselect(s.cell[0],s.cell[1]);}this.selection=null;this.fireEvent("selectionchange",this,null);}},hasSelection:function(){return this.selection?true:false;},handleMouseDown:function(e,t){var v=this.grid.getView();if(this.isLocked()){return;}var _c=v.findRowIndex(t);var _d=v.findCellIndex(t);if(_c!==false&&_d!==false){this.select(_c,_d);}},select:function(_e,_f,_10,_11,r){if(this.fireEvent("beforecellselect",this,_e,_f)!==false){this.clearSelections();r=r||this.grid.dataSource.getAt(_e);this.selection={record:r,cell:[_e,_f]};if(!_10){var v=this.grid.getView();v.onCellSelect(_e,_f);if(_11!==true){v.focusCell(_e,_f);}}this.fireEvent("cellselect",this,_e,_f);this.fireEvent("selectionchange",this,this.selection);}},isSelectable:function(_14,_15,cm){return!cm.isHidden(_15);},handleKeyDown:function(e){if(!e.isNavKeyPress()){return;}var g=this.grid,s=this.selection;if(!s){e.stopEvent();var _1a=g.walkCells(0,0,1,this.isSelectable,this);if(_1a){this.select(_1a[0],_1a[1]);}return;}var sm=this;var _1c=function(row,col,_1f){return g.walkCells(row,col,_1f,sm.isSelectable,sm);};var k=e.getKey(),r=s.cell[0],c=s.cell[1];var _23;switch(k){case e.TAB:if(e.shiftKey){_23=_1c(r,c-1,-1);}else{_23=_1c(r,c+1,1);}break;case e.DOWN:_23=_1c(r+1,c,1);break;case e.UP:_23=_1c(r-1,c,-1);break;case e.RIGHT:_23=_1c(r,c+1,1);break;case e.LEFT:_23=_1c(r,c-1,-1);break;case e.ENTER:if(g.isEditor&&!g.editing){g.startEditing(r,c);e.stopEvent();return;}break;}if(_23){this.select(_23[0],_23[1]);e.stopEvent();}},acceptsNav:function(row,col,cm){return!cm.isHidden(col)&&cm.isCellEditable(col,row);},onEditorKey:function(_27,e){var k=e.getKey(),_2a,g=this.grid,ed=g.activeEditor;if(k==e.TAB){if(e.shiftKey){_2a=g.walkCells(ed.row,ed.col-1,-1,this.acceptsNav,this);}else{_2a=g.walkCells(ed.row,ed.col+1,1,this.acceptsNav,this);}e.stopEvent();}else{if(k==e.ENTER&&!e.ctrlKey){ed.completeEdit();e.stopEvent();}else{if(k==e.ESC){ed.cancelEdit();}}}if(_2a){g.startEditing(_2a[0],_2a[1]);}}});

Ext.grid.HeaderDragZone=function(_1,hd,_3){this.grid=_1;this.view=_1.getView();this.ddGroup="gridHeader"+this.grid.getGridEl().id;Ext.grid.HeaderDragZone.superclass.constructor.call(this,hd);if(_3){this.setHandleElId(Ext.id(hd));this.setOuterHandleElId(Ext.id(_3));}this.scroll=false;};Ext.extend(Ext.grid.HeaderDragZone,Ext.dd.DragZone,{maxDragWidth:120,getDragData:function(e){var t=Ext.lib.Event.getTarget(e);var h=this.view.findHeaderCell(t);if(h){return{ddel:h.firstChild,header:h};}return false;},onInitDrag:function(e){this.view.headersDisabled=true;var _8=this.dragData.ddel.cloneNode(true);_8.id=Ext.id();_8.style.width=Math.min(this.dragData.header.offsetWidth,this.maxDragWidth)+"px";this.proxy.update(_8);return true;},afterValidDrop:function(){var v=this.view;setTimeout(function(){v.headersDisabled=false;},50);},afterInvalidDrop:function(){var v=this.view;setTimeout(function(){v.headersDisabled=false;},50);}});Ext.grid.HeaderDropZone=function(_b,hd,_d){this.grid=_b;this.view=_b.getView();this.proxyTop=Ext.DomHelper.append(document.body,{cls:"col-move-top",html:"&#160;"},true);this.proxyBottom=Ext.DomHelper.append(document.body,{cls:"col-move-bottom",html:"&#160;"},true);this.proxyTop.hide=this.proxyBottom.hide=function(){this.setLeftTop(-100,-100);this.setStyle("visibility","hidden");};this.ddGroup="gridHeader"+this.grid.getGridEl().id;Ext.grid.HeaderDropZone.superclass.constructor.call(this,_b.getGridEl().dom);};Ext.extend(Ext.grid.HeaderDropZone,Ext.dd.DropZone,{proxyOffsets:[-4,-9],fly:Ext.Element.fly,getTargetFromEvent:function(e){var t=Ext.lib.Event.getTarget(e);var _10=this.view.findCellIndex(t);if(_10!==false){return this.view.getHeaderCell(_10);}},nextVisible:function(h){var v=this.view,cm=this.grid.colModel;h=h.nextSibling;while(h){if(!cm.isHidden(v.getCellIndex(h))){return h;}h=h.nextSibling;}return null;},prevVisible:function(h){var v=this.view,cm=this.grid.colModel;h=h.prevSibling;while(h){if(!cm.isHidden(v.getCellIndex(h))){return h;}h=h.prevSibling;}return null;},positionIndicator:function(h,n,e){var x=Ext.lib.Event.getPageX(e);var r=Ext.lib.Dom.getRegion(n.firstChild);var px,pt,py=r.top+this.proxyOffsets[1];if((r.right-x)<=(r.right-r.left)/2){px=r.right+this.view.borderWidth;pt="after";}else{px=r.left;pt="before";}var _1f=this.view.getCellIndex(h);var _20=this.view.getCellIndex(n);if(this.grid.colModel.isFixed(_20)){return false;}var _21=this.grid.colModel.isLocked(_20);if(pt=="after"){_20++;}if(_1f<_20){_20--;}if(_1f==_20&&(_21==this.grid.colModel.isLocked(_1f))){return false;}px+=this.proxyOffsets[0];this.proxyTop.setLeftTop(px,py);this.proxyTop.show();if(!this.bottomOffset){this.bottomOffset=this.view.mainHd.getHeight();}this.proxyBottom.setLeftTop(px,py+this.proxyTop.dom.offsetHeight+this.bottomOffset);this.proxyBottom.show();return pt;},onNodeEnter:function(n,dd,e,_25){if(_25.header!=n){this.positionIndicator(_25.header,n,e);}},onNodeOver:function(n,dd,e,_29){var _2a=false;if(_29.header!=n){_2a=this.positionIndicator(_29.header,n,e);}if(!_2a){this.proxyTop.hide();this.proxyBottom.hide();}return _2a?this.dropAllowed:this.dropNotAllowed;},onNodeOut:function(n,dd,e,_2e){this.proxyTop.hide();this.proxyBottom.hide();},onNodeDrop:function(n,dd,e,_32){var h=_32.header;if(h!=n){var cm=this.grid.colModel;var x=Ext.lib.Event.getPageX(e);var r=Ext.lib.Dom.getRegion(n.firstChild);var pt=(r.right-x)<=((r.right-r.left)/2)?"after":"before";var _38=this.view.getCellIndex(h);var _39=this.view.getCellIndex(n);var _3a=cm.isLocked(_39);if(pt=="after"){_39++;}if(_38<_39){_39--;}if(_38==_39&&(_3a==cm.isLocked(_38))){return false;}cm.setLocked(_38,_3a,true);cm.moveColumn(_38,_39);this.grid.fireEvent("columnmove",_38,_39);return true;}return false;}});Ext.grid.GridView.ColumnDragZone=function(_3b,hd){Ext.grid.GridView.ColumnDragZone.superclass.constructor.call(this,_3b,hd,null);this.proxy.el.addClass("x-grid3-col-dd");};Ext.extend(Ext.grid.GridView.ColumnDragZone,Ext.grid.HeaderDragZone,{handleMouseDown:function(e){},callHandleMouseDown:function(e){Ext.grid.GridView.ColumnDragZone.superclass.handleMouseDown.call(this,e);}});