examples/ux/RowEditor.js

   1 /*!
   2  * Ext JS Library 3.2.0
   3  * Copyright(c) 2006-2010 Ext JS, Inc.
   4  * licensing@extjs.com
   5  * http://www.extjs.com/license
   6  */
   7 Ext.ns('Ext.ux.grid');
   8
   9 /**
  10  * @class Ext.ux.grid.RowEditor
  11  * @extends Ext.Panel
  12  * Plugin (ptype = 'roweditor') that adds the ability to rapidly edit full rows in a grid.
  13  * A validation mode may be enabled which uses AnchorTips to notify the user of all
  14  * validation errors at once.
  15  *
  16  * @ptype roweditor
  17  */
  18 Ext.ux.grid.RowEditor = Ext.extend(Ext.Panel, {
  19     floating: true,
  20     shadow: false,
  21     layout: 'hbox',
  22     cls: 'x-small-editor',
  23     buttonAlign: 'center',
  24     baseCls: 'x-row-editor',
  25     elements: 'header,footer,body',
  26     frameWidth: 5,
  27     buttonPad: 3,
  28     clicksToEdit: 'auto',
  29     monitorValid: true,
  30     focusDelay: 250,
  31     errorSummary: true,
  32
  33     saveText: 'Save',
  34     cancelText: 'Cancel',
  35     commitChangesText: 'You need to commit or cancel your changes',
  36     errorText: 'Errors',
  37
  38     defaults: {
  39         normalWidth: true
  40     },
  41
  42     initComponent: function(){
  43         Ext.ux.grid.RowEditor.superclass.initComponent.call(this);
  44         this.addEvents(
  45             /**
  46              * @event beforeedit
  47              * Fired before the row editor is activated.
  48              * If the listener returns <tt>false</tt> the editor will not be activated.
  49              * @param {Ext.ux.grid.RowEditor} roweditor This object
  50              * @param {Number} rowIndex The rowIndex of the row just edited
  51              */
  52             'beforeedit',
  53             /**
  54              * @event canceledit
  55              * Fired when the editor is cancelled.
  56              * @param {Ext.ux.grid.RowEditor} roweditor This object
  57              * @param {Boolean} forced True if the cancel button is pressed, false is the editor was invalid.
  58              */
  59             'canceledit',
  60             /**
  61              * @event validateedit
  62              * Fired after a row is edited and passes validation.
  63              * If the listener returns <tt>false</tt> changes to the record will not be set.
  64              * @param {Ext.ux.grid.RowEditor} roweditor This object
  65              * @param {Object} changes Object with changes made to the record.
  66              * @param {Ext.data.Record} r The Record that was edited.
  67              * @param {Number} rowIndex The rowIndex of the row just edited
  68              */
  69             'validateedit',
  70             /**
  71              * @event afteredit
  72              * Fired after a row is edited and passes validation.  This event is fired
  73              * after the store's update event is fired with this edit.
  74              * @param {Ext.ux.grid.RowEditor} roweditor This object
  75              * @param {Object} changes Object with changes made to the record.
  76              * @param {Ext.data.Record} r The Record that was edited.
  77              * @param {Number} rowIndex The rowIndex of the row just edited
  78              */
  79             'afteredit'
  80         );
  81     },
  82
  83     init: function(grid){
  84         this.grid = grid;
  85         this.ownerCt = grid;
  86         if(this.clicksToEdit === 2){
  87             grid.on('rowdblclick', this.onRowDblClick, this);
  88         }else{
  89             grid.on('rowclick', this.onRowClick, this);
  90             if(Ext.isIE){
  91                 grid.on('rowdblclick', this.onRowDblClick, this);
  92             }
  93         }
  94
  95         // stopEditing without saving when a record is removed from Store.
  96         grid.getStore().on('remove', function() {
  97             this.stopEditing(false);
  98         },this);
  99
 100         grid.on({
 101             scope: this,
 102             keydown: this.onGridKey,
 103             columnresize: this.verifyLayout,
 104             columnmove: this.refreshFields,
 105             reconfigure: this.refreshFields,
 106             beforedestroy : this.beforedestroy,
 107             destroy : this.destroy,
 108             bodyscroll: {
 109                 buffer: 250,
 110                 fn: this.positionButtons
 111             }
 112         });
 113         grid.getColumnModel().on('hiddenchange', this.verifyLayout, this, {delay:1});
 114         grid.getView().on('refresh', this.stopEditing.createDelegate(this, []));
 115     },
 116
 117     beforedestroy: function() {
 118         this.stopMonitoring();
 119         this.grid.getStore().un('remove', this.onStoreRemove, this);
 120         this.stopEditing(false);
 121         Ext.destroy(this.btns, this.tooltip);
 122     },
 123
 124     refreshFields: function(){
 125         this.initFields();
 126         this.verifyLayout();
 127     },
 128
 129     isDirty: function(){
 130         var dirty;
 131         this.items.each(function(f){
 132             if(String(this.values[f.id]) !== String(f.getValue())){
 133                 dirty = true;
 134                 return false;
 135             }
 136         }, this);
 137         return dirty;
 138     },
 139
 140     startEditing: function(rowIndex, doFocus){
 141         if(this.editing && this.isDirty()){
 142             this.showTooltip(this.commitChangesText);
 143             return;
 144         }
 145         if(Ext.isObject(rowIndex)){
 146             rowIndex = this.grid.getStore().indexOf(rowIndex);
 147         }
 148         if(this.fireEvent('beforeedit', this, rowIndex) !== false){
 149             this.editing = true;
 150             var g = this.grid, view = g.getView(),
 151                 row = view.getRow(rowIndex),
 152                 record = g.store.getAt(rowIndex);
 153
 154             this.record = record;
 155             this.rowIndex = rowIndex;
 156             this.values = {};
 157             if(!this.rendered){
 158                 this.render(view.getEditorParent());
 159             }
 160             var w = Ext.fly(row).getWidth();
 161             this.setSize(w);
 162             if(!this.initialized){
 163                 this.initFields();
 164             }
 165             var cm = g.getColumnModel(), fields = this.items.items, f, val;
 166             for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 167                 val = this.preEditValue(record, cm.getDataIndex(i));
 168                 f = fields[i];
 169                 f.setValue(val);
 170                 this.values[f.id] = Ext.isEmpty(val) ? '' : val;
 171             }
 172             this.verifyLayout(true);
 173             if(!this.isVisible()){
 174                 this.setPagePosition(Ext.fly(row).getXY());
 175             } else{
 176                 this.el.setXY(Ext.fly(row).getXY(), {duration:0.15});
 177             }
 178             if(!this.isVisible()){
 179                 this.show().doLayout();
 180             }
 181             if(doFocus !== false){
 182                 this.doFocus.defer(this.focusDelay, this);
 183             }
 184         }
 185     },
 186
 187     stopEditing : function(saveChanges){
 188         this.editing = false;
 189         if(!this.isVisible()){
 190             return;
 191         }
 192         if(saveChanges === false || !this.isValid()){
 193             this.hide();
 194             this.fireEvent('canceledit', this, saveChanges === false);
 195             return;
 196         }
 197         var changes = {},
 198             r = this.record,
 199             hasChange = false,
 200             cm = this.grid.colModel,
 201             fields = this.items.items;
 202         for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 203             if(!cm.isHidden(i)){
 204                 var dindex = cm.getDataIndex(i);
 205                 if(!Ext.isEmpty(dindex)){
 206                     var oldValue = r.data[dindex],
 207                         value = this.postEditValue(fields[i].getValue(), oldValue, r, dindex);
 208                     if(String(oldValue) !== String(value)){
 209                         changes[dindex] = value;
 210                         hasChange = true;
 211                     }
 212                 }
 213             }
 214         }
 215         if(hasChange && this.fireEvent('validateedit', this, changes, r, this.rowIndex) !== false){
 216             r.beginEdit();
 217             Ext.iterate(changes, function(name, value){
 218                 r.set(name, value);
 219             });
 220             r.endEdit();
 221             this.fireEvent('afteredit', this, changes, r, this.rowIndex);
 222         }
 223         this.hide();
 224     },
 225
 226     verifyLayout: function(force){
 227         if(this.el && (this.isVisible() || force === true)){
 228             var row = this.grid.getView().getRow(this.rowIndex);
 229             this.setSize(Ext.fly(row).getWidth(), Ext.isIE ? Ext.fly(row).getHeight() + 9 : undefined);
 230             var cm = this.grid.colModel, fields = this.items.items;
 231             for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 232                 if(!cm.isHidden(i)){
 233                     var adjust = 0;
 234                     if(i === (len - 1)){
 235                         adjust += 3; // outer padding
 236                     } else{
 237                         adjust += 1;
 238                     }
 239                     fields[i].show();
 240                     fields[i].setWidth(cm.getColumnWidth(i) - adjust);
 241                 } else{
 242                     fields[i].hide();
 243                 }
 244             }
 245             this.doLayout();
 246             this.positionButtons();
 247         }
 248     },
 249
 250     slideHide : function(){
 251         this.hide();
 252     },
 253
 254     initFields: function(){
 255         var cm = this.grid.getColumnModel(), pm = Ext.layout.ContainerLayout.prototype.parseMargins;
 256         this.removeAll(false);
 257         for(var i = 0, len = cm.getColumnCount(); i < len; i++){
 258             var c = cm.getColumnAt(i),
 259                 ed = c.getEditor();
 260             if(!ed){
 261                 ed = c.displayEditor || new Ext.form.DisplayField();
 262             }
 263             if(i == 0){
 264                 ed.margins = pm('0 1 2 1');
 265             } else if(i == len - 1){
 266                 ed.margins = pm('0 0 2 1');
 267             } else{
 268                 ed.margins = pm('0 1 2');
 269             }
 270             ed.setWidth(cm.getColumnWidth(i));
 271             ed.column = c;
 272             if(ed.ownerCt !== this){
 273                 ed.on('focus', this.ensureVisible, this);
 274                 ed.on('specialkey', this.onKey, this);
 275             }
 276             this.insert(i, ed);
 277         }
 278         this.initialized = true;
 279     },
 280
 281     onKey: function(f, e){
 282         if(e.getKey() === e.ENTER){
 283             this.stopEditing(true);
 284             e.stopPropagation();
 285         }
 286     },
 287
 288     onGridKey: function(e){
 289         if(e.getKey() === e.ENTER && !this.isVisible()){
 290             var r = this.grid.getSelectionModel().getSelected();
 291             if(r){
 292                 var index = this.grid.store.indexOf(r);
 293                 this.startEditing(index);
 294                 e.stopPropagation();
 295             }
 296         }
 297     },
 298
 299     ensureVisible: function(editor){
 300         if(this.isVisible()){
 301              this.grid.getView().ensureVisible(this.rowIndex, this.grid.colModel.getIndexById(editor.column.id), true);
 302         }
 303     },
 304
 305     onRowClick: function(g, rowIndex, e){
 306         if(this.clicksToEdit == 'auto'){
 307             var li = this.lastClickIndex;
 308             this.lastClickIndex = rowIndex;
 309             if(li != rowIndex && !this.isVisible()){
 310                 return;
 311             }
 312         }
 313         this.startEditing(rowIndex, false);
 314         this.doFocus.defer(this.focusDelay, this, [e.getPoint()]);
 315     },
 316
 317     onRowDblClick: function(g, rowIndex, e){
 318         this.startEditing(rowIndex, false);
 319         this.doFocus.defer(this.focusDelay, this, [e.getPoint()]);
 320     },
 321
 322     onRender: function(){
 323         Ext.ux.grid.RowEditor.superclass.onRender.apply(this, arguments);
 324         this.el.swallowEvent(['keydown', 'keyup', 'keypress']);
 325         this.btns = new Ext.Panel({
 326             baseCls: 'x-plain',
 327             cls: 'x-btns',
 328             elements:'body',
 329             layout: 'table',
 330             width: (this.minButtonWidth * 2) + (this.frameWidth * 2) + (this.buttonPad * 4), // width must be specified for IE
 331             items: [{
 332                 ref: 'saveBtn',
 333                 itemId: 'saveBtn',
 334                 xtype: 'button',
 335                 text: this.saveText,
 336                 width: this.minButtonWidth,
 337                 handler: this.stopEditing.createDelegate(this, [true])
 338             }, {
 339                 xtype: 'button',
 340                 text: this.cancelText,
 341                 width: this.minButtonWidth,
 342                 handler: this.stopEditing.createDelegate(this, [false])
 343             }]
 344         });
 345         this.btns.render(this.bwrap);
 346     },
 347
 348     afterRender: function(){
 349         Ext.ux.grid.RowEditor.superclass.afterRender.apply(this, arguments);
 350         this.positionButtons();
 351         if(this.monitorValid){
 352             this.startMonitoring();
 353         }
 354     },
 355
 356     onShow: function(){
 357         if(this.monitorValid){
 358             this.startMonitoring();
 359         }
 360         Ext.ux.grid.RowEditor.superclass.onShow.apply(this, arguments);
 361     },
 362
 363     onHide: function(){
 364         Ext.ux.grid.RowEditor.superclass.onHide.apply(this, arguments);
 365         this.stopMonitoring();
 366         this.grid.getView().focusRow(this.rowIndex);
 367     },
 368
 369     positionButtons: function(){
 370         if(this.btns){
 371             var g = this.grid,
 372                 h = this.el.dom.clientHeight,
 373                 view = g.getView(),
 374                 scroll = view.scroller.dom.scrollLeft,
 375                 bw = this.btns.getWidth(),
 376                 width = Math.min(g.getWidth(), g.getColumnModel().getTotalWidth());
 377
 378             this.btns.el.shift({left: (width/2)-(bw/2)+scroll, top: h - 2, stopFx: true, duration:0.2});
 379         }
 380     },
 381
 382     // private
 383     preEditValue : function(r, field){
 384         var value = r.data[field];
 385         return this.autoEncode && typeof value === 'string' ? Ext.util.Format.htmlDecode(value) : value;
 386     },
 387
 388     // private
 389     postEditValue : function(value, originalValue, r, field){
 390         return this.autoEncode && typeof value == 'string' ? Ext.util.Format.htmlEncode(value) : value;
 391     },
 392
 393     doFocus: function(pt){
 394         if(this.isVisible()){
 395             var index = 0,
 396                 cm = this.grid.getColumnModel(),
 397                 c;
 398             if(pt){
 399                 index = this.getTargetColumnIndex(pt);
 400             }
 401             for(var i = index||0, len = cm.getColumnCount(); i < len; i++){
 402                 c = cm.getColumnAt(i);
 403                 if(!c.hidden && c.getEditor()){
 404                     c.getEditor().focus();
 405                     break;
 406                 }
 407             }
 408         }
 409     },
 410
 411     getTargetColumnIndex: function(pt){
 412         var grid = this.grid,
 413             v = grid.view,
 414             x = pt.left,
 415             cms = grid.colModel.config,
 416             i = 0,
 417             match = false;
 418         for(var len = cms.length, c; c = cms[i]; i++){
 419             if(!c.hidden){
 420                 if(Ext.fly(v.getHeaderCell(i)).getRegion().right >= x){
 421                     match = i;
 422                     break;
 423                 }
 424             }
 425         }
 426         return match;
 427     },
 428
 429     startMonitoring : function(){
 430         if(!this.bound && this.monitorValid){
 431             this.bound = true;
 432             Ext.TaskMgr.start({
 433                 run : this.bindHandler,
 434                 interval : this.monitorPoll || 200,
 435                 scope: this
 436             });
 437         }
 438     },
 439
 440     stopMonitoring : function(){
 441         this.bound = false;
 442         if(this.tooltip){
 443             this.tooltip.hide();
 444         }
 445     },
 446
 447     isValid: function(){
 448         var valid = true;
 449         this.items.each(function(f){
 450             if(!f.isValid(true)){
 451                 valid = false;
 452                 return false;
 453             }
 454         });
 455         return valid;
 456     },
 457
 458     // private
 459     bindHandler : function(){
 460         if(!this.bound){
 461             return false; // stops binding
 462         }
 463         var valid = this.isValid();
 464         if(!valid && this.errorSummary){
 465             this.showTooltip(this.getErrorText().join(''));
 466         }
 467         this.btns.saveBtn.setDisabled(!valid);
 468         this.fireEvent('validation', this, valid);
 469     },
 470
 471     showTooltip: function(msg){
 472         var t = this.tooltip;
 473         if(!t){
 474             t = this.tooltip = new Ext.ToolTip({
 475                 maxWidth: 600,
 476                 cls: 'errorTip',
 477                 width: 300,
 478                 title: this.errorText,
 479                 autoHide: false,
 480                 anchor: 'left',
 481                 anchorToTarget: true,
 482                 mouseOffset: [40,0]
 483             });
 484         }
 485         var v = this.grid.getView(),
 486             top = parseInt(this.el.dom.style.top, 10),
 487             scroll = v.scroller.dom.scrollTop,
 488             h = this.el.getHeight();
 489
 490         if(top + h >= scroll){
 491             t.initTarget(this.items.last().getEl());
 492             if(!t.rendered){
 493                 t.show();
 494                 t.hide();
 495             }
 496             t.body.update(msg);
 497             t.doAutoWidth(20);
 498             t.show();
 499         }else if(t.rendered){
 500             t.hide();
 501         }
 502     },
 503
 504     getErrorText: function(){
 505         var data = ['<ul>'];
 506         this.items.each(function(f){
 507             if(!f.isValid(true)){
 508                 data.push('<li>', f.getActiveError(), '</li>');
 509             }
 510         });
 511         data.push('</ul>');
 512         return data;
 513     }
 514 });
 515 Ext.preg('roweditor', Ext.ux.grid.RowEditor);