Peter M. Groen / knowledgetree

/*
 * Ext JS Library 2.3.0
 * Copyright(c) 2006-2009, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://extjs.com/license
 */


Ext.grid.EditorGridPanel = Ext.extend(Ext.grid.GridPanel, {
    
    clicksToEdit: 2,

    // private
    isEditor : true,
    // private
    detectEdit: false,

	
	autoEncode : false,

	
    // private
    trackMouseOver: false, // causes very odd FF errors

    // private
    initComponent : function(){
        Ext.grid.EditorGridPanel.superclass.initComponent.call(this);

        if(!this.selModel){
            
            this.selModel = new Ext.grid.CellSelectionModel();
        }

        this.activeEditor = null;

	    this.addEvents(
            
            "beforeedit",
            
            "afteredit",
            
            "validateedit"
        );
    },

    // private
    initEvents : function(){
        Ext.grid.EditorGridPanel.superclass.initEvents.call(this);

        this.on("bodyscroll", this.stopEditing, this, [true]);
        this.on("columnresize", this.stopEditing, this, [true]);

        if(this.clicksToEdit == 1){
            this.on("cellclick", this.onCellDblClick, this);
        }else {
            if(this.clicksToEdit == 'auto' && this.view.mainBody){
                this.view.mainBody.on("mousedown", this.onAutoEditClick, this);
            }
            this.on("celldblclick", this.onCellDblClick, this);
        }
    },

    // private
    onCellDblClick : function(g, row, col){
        this.startEditing(row, col);
    },

    // private
    onAutoEditClick : function(e, t){
        if(e.button !== 0){
            return;
        }
        var row = this.view.findRowIndex(t);
        var col = this.view.findCellIndex(t);
        if(row !== false && col !== false){
            this.stopEditing();
            if(this.selModel.getSelectedCell){ // cell sm
                var sc = this.selModel.getSelectedCell();
                if(sc && sc[0] === row && sc[1] === col){
                    this.startEditing(row, col);
                }
            }else{
                if(this.selModel.isSelected(row)){
                    this.startEditing(row, col);
                }
            }
        }
    },

    // private
    onEditComplete : function(ed, value, startValue){
        this.editing = false;
        this.activeEditor = null;
        ed.un("specialkey", this.selModel.onEditorKey, this.selModel);
		var r = ed.record;
        var field = this.colModel.getDataIndex(ed.col);
        value = this.postEditValue(value, startValue, r, field);
        if(String(value) !== String(startValue)){
            var e = {
                grid: this,
                record: r,
                field: field,
                originalValue: startValue,
                value: value,
                row: ed.row,
                column: ed.col,
                cancel:false
            };
            if(this.fireEvent("validateedit", e) !== false && !e.cancel){
                r.set(field, e.value);
                delete e.cancel;
                this.fireEvent("afteredit", e);
            }
        }
        this.view.focusCell(ed.row, ed.col);
    },

    
    startEditing : function(row, col){
        this.stopEditing();
        if(this.colModel.isCellEditable(col, row)){
            this.view.ensureVisible(row, col, true);
            var r = this.store.getAt(row);
            var field = this.colModel.getDataIndex(col);
            var e = {
                grid: this,
                record: r,
                field: field,
                value: r.data[field],
                row: row,
                column: col,
                cancel:false
            };
            if(this.fireEvent("beforeedit", e) !== false && !e.cancel){
                this.editing = true;
                var ed = this.colModel.getCellEditor(col, row);
                if(!ed.rendered){
                    ed.render(this.view.getEditorParent(ed));
                }
                (function(){ // complex but required for focus issues in safari, ie and opera
                    ed.row = row;
                    ed.col = col;
                    ed.record = r;
                    ed.on("complete", this.onEditComplete, this, {single: true});
                    ed.on("specialkey", this.selModel.onEditorKey, this.selModel);
                    
                    this.activeEditor = ed;
                    var v = this.preEditValue(r, field);
                    ed.startEdit(this.view.getCell(row, col).firstChild, v === undefined ? '' : v);
                }).defer(50, this);
            }
        }
    },

    // private
	preEditValue : function(r, field){
        var value = r.data[field];
		return this.autoEncode && typeof value == 'string' ? Ext.util.Format.htmlDecode(value) : value;
	},

    // private
	postEditValue : function(value, originalValue, r, field){
		return this.autoEncode && typeof value == 'string' ? Ext.util.Format.htmlEncode(value) : value;
	},

    
    stopEditing : function(cancel){
        if(this.activeEditor){
            this.activeEditor[cancel === true ? 'cancelEdit' : 'completeEdit']();
        }
        this.activeEditor = null;
    }
});
Ext.reg('editorgrid', Ext.grid.EditorGridPanel);
// private
// This is a support class used internally by the Grid components
Ext.grid.GridEditor = function(field, config){
    Ext.grid.GridEditor.superclass.constructor.call(this, field, config);
    field.monitorTab = false;
};

Ext.extend(Ext.grid.GridEditor, Ext.Editor, {
    alignment: "tl-tl",
    autoSize: "width",
    hideEl : false,
    cls: "x-small-editor x-grid-editor",
    shim:false,
    shadow:false
});

Ext.grid.PropertyRecord = Ext.data.Record.create([
    {name:'name',type:'string'}, 'value'
]);


Ext.grid.PropertyStore = function(grid, source){
    this.grid = grid;
    this.store = new Ext.data.Store({
        recordType : Ext.grid.PropertyRecord
    });
    this.store.on('update', this.onUpdate,  this);
    if(source){
        this.setSource(source);
    }
    Ext.grid.PropertyStore.superclass.constructor.call(this);
};
Ext.extend(Ext.grid.PropertyStore, Ext.util.Observable, {
    // protected - should only be called by the grid.  Use grid.setSource instead.
    setSource : function(o){
        this.source = o;
        this.store.removeAll();
        var data = [];
        for(var k in o){
            if(this.isEditableValue(o[k])){
                data.push(new Ext.grid.PropertyRecord({name: k, value: o[k]}, k));
            }
        }
        this.store.loadRecords({records: data}, {}, true);
    },

    // private
    onUpdate : function(ds, record, type){
        if(type == Ext.data.Record.EDIT){
            var v = record.data['value'];
            var oldValue = record.modified['value'];
            if(this.grid.fireEvent('beforepropertychange', this.source, record.id, v, oldValue) !== false){
                this.source[record.id] = v;
                record.commit();
                this.grid.fireEvent('propertychange', this.source, record.id, v, oldValue);
            }else{
                record.reject();
            }
        }
    },

    // private
    getProperty : function(row){
       return this.store.getAt(row);
    },

    // private
    isEditableValue: function(val){
        if(Ext.isDate(val)){
            return true;
        }else if(typeof val == 'object' || typeof val == 'function'){
            return false;
        }
        return true;
    },

    // private
    setValue : function(prop, value){
        this.source[prop] = value;
        this.store.getById(prop).set('value', value);
    },

    // protected - should only be called by the grid.  Use grid.getSource instead.
    getSource : function(){
        return this.source;
    }
});


Ext.grid.PropertyColumnModel = function(grid, store){
    this.grid = grid;
    var g = Ext.grid;
    g.PropertyColumnModel.superclass.constructor.call(this, [
        {header: this.nameText, width:50, sortable: true, dataIndex:'name', id: 'name', menuDisabled:true},
        {header: this.valueText, width:50, resizable:false, dataIndex: 'value', id: 'value', menuDisabled:true}
    ]);
    this.store = store;
    var f = Ext.form;

    var bfield = new f.Field({
        autoCreate: {tag: 'select', children: [
            {tag: 'option', value: 'true', html: 'true'},
            {tag: 'option', value: 'false', html: 'false'}
        ]},
        getValue : function(){
            return this.el.value == 'true';
        }
    });
    this.editors = {
        'date' : new g.GridEditor(new f.DateField({selectOnFocus:true})),
        'string' : new g.GridEditor(new f.TextField({selectOnFocus:true})),
        'number' : new g.GridEditor(new f.NumberField({selectOnFocus:true, style:'text-align:left;'})),
        'boolean' : new g.GridEditor(bfield)
    };
    this.renderCellDelegate = this.renderCell.createDelegate(this);
    this.renderPropDelegate = this.renderProp.createDelegate(this);
};

Ext.extend(Ext.grid.PropertyColumnModel, Ext.grid.ColumnModel, {
    // private - strings used for locale support
    nameText : 'Name',
    valueText : 'Value',
    dateFormat : 'm/j/Y',

    // private
    renderDate : function(dateVal){
        return dateVal.dateFormat(this.dateFormat);
    },

    // private
    renderBool : function(bVal){
        return bVal ? 'true' : 'false';
    },

    // private
    isCellEditable : function(colIndex, rowIndex){
        return colIndex == 1;
    },

    // private
    getRenderer : function(col){
        return col == 1 ?
            this.renderCellDelegate : this.renderPropDelegate;
    },

    // private
    renderProp : function(v){
        return this.getPropertyName(v);
    },

    // private
    renderCell : function(val){
        var rv = val;
        if(Ext.isDate(val)){
            rv = this.renderDate(val);
        }else if(typeof val == 'boolean'){
            rv = this.renderBool(val);
        }
        return Ext.util.Format.htmlEncode(rv);
    },

    // private
    getPropertyName : function(name){
        var pn = this.grid.propertyNames;
        return pn && pn[name] ? pn[name] : name;
    },

    // private
    getCellEditor : function(colIndex, rowIndex){
        var p = this.store.getProperty(rowIndex);
        var n = p.data['name'], val = p.data['value'];
        if(this.grid.customEditors[n]){
            return this.grid.customEditors[n];
        }
        if(Ext.isDate(val)){
            return this.editors['date'];
        }else if(typeof val == 'number'){
            return this.editors['number'];
        }else if(typeof val == 'boolean'){
            return this.editors['boolean'];
        }else{
            return this.editors['string'];
        }
    },
    
    destroy : function(){
        Ext.grid.PropertyColumnModel.superclass.destroy.call(this);
        for(var ed in this.editors){
            Ext.destroy(ed);
        }
    }
});


Ext.grid.PropertyGrid = Ext.extend(Ext.grid.EditorGridPanel, {
    
    
    

    // private config overrides
    enableColumnMove:false,
    stripeRows:false,
    trackMouseOver: false,
    clicksToEdit:1,
    enableHdMenu : false,
    viewConfig : {
        forceFit:true
    },

    // private
    initComponent : function(){
        this.customEditors = this.customEditors || {};
        this.lastEditRow = null;
        var store = new Ext.grid.PropertyStore(this);
        this.propStore = store;
        var cm = new Ext.grid.PropertyColumnModel(this, store);
        store.store.sort('name', 'ASC');
        this.addEvents(
            
            'beforepropertychange',
            
            'propertychange'
        );
        this.cm = cm;
        this.ds = store.store;
        Ext.grid.PropertyGrid.superclass.initComponent.call(this);

        this.selModel.on('beforecellselect', function(sm, rowIndex, colIndex){
            if(colIndex === 0){
                this.startEditing.defer(200, this, [rowIndex, 1]);
                return false;
            }
        }, this);
    },

    // private
    onRender : function(){
        Ext.grid.PropertyGrid.superclass.onRender.apply(this, arguments);

        this.getGridEl().addClass('x-props-grid');
    },

    // private
    afterRender: function(){
        Ext.grid.PropertyGrid.superclass.afterRender.apply(this, arguments);
        if(this.source){
            this.setSource(this.source);
        }
    },

    
    setSource : function(source){
        this.propStore.setSource(source);
    },

    
    getSource : function(){
        return this.propStore.getSource();
    }
});
Ext.reg("propertygrid", Ext.grid.PropertyGrid);