gridpanel.js

一个struts和extjs得源码

        }
    },

    initStateEvents : function(){
        Ext.grid.GridPanel.superclass.initStateEvents.call(this);
        this.colModel.on('hiddenchange', this.saveState, this, {delay: 100});
    },

    applyState : function(state){
        var cm = this.colModel;
        var cs = state.columns;
        if(cs){
            for(var i = 0, len = cs.length; i < len; i++){
                var s = cs[i];
                var c = cm.getColumnById(s.id);
                if(c){
                    c.hidden = s.hidden;
                    c.width = s.width;
                    var oldIndex = cm.getIndexById(s.id);
                    if(oldIndex != i){
                        cm.moveColumn(oldIndex, i);
                    }
                }
            }
        }
        if(state.sort){
            this.store[this.store.remoteSort ? 'setDefaultSort' : 'sort'](state.sort.field, state.sort.direction);
        }
    },

    getState : function(){
        var o = {columns: []};
        for(var i = 0, c; c = this.colModel.config[i]; i++){
            o.columns[i] = {
                id: c.id,
                width: c.width
            };
            if(c.hidden){
                o.columns[i].hidden = true;
            }
        }
        var ss = this.store.getSortState();
        if(ss){
            o.sort = ss;
        }
        return o;
    },

    // private
    afterRender : function(){
        Ext.grid.GridPanel.superclass.afterRender.call(this);
        this.view.layout();
        if(this.deferRowRender){
            this.view.afterRender.defer(10, this.view);
        }else{
            this.view.afterRender();
        }
        this.viewReady = true;
    },

    /**
     * <p>Reconfigures the grid to use a different Store and Column Model.
     * The View will be bound to the new objects and refreshed.</p>
     * <p>Be aware that upon reconfiguring a GridPanel, certain existing settings <i>may</i> become
     * invalidated. For example the configured {@link #autoExpandColumn} may no longer exist in the
     * new ColumnModel. Also, an existing {@link Ext.PagingToolbar PagingToolbar} will still be bound
     * to the old Store, and will need rebinding. Any {@link #plugins} might also need reconfiguring
     * with the new data.</p>
     * @param {Ext.data.Store} store The new {@link Ext.data.Store} object
     * @param {Ext.grid.ColumnModel} colModel The new {@link Ext.grid.ColumnModel} object
     */
    reconfigure : function(store, colModel){
        if(this.loadMask){
            this.loadMask.destroy();
            this.loadMask = new Ext.LoadMask(this.bwrap,
                    Ext.apply({store:store}, this.initialConfig.loadMask));
        }
        this.view.bind(store, colModel);
        this.store = store;
        this.colModel = colModel;
        if(this.rendered){
            this.view.refresh(true);
        }
    },

    // private
    onKeyDown : function(e){
        this.fireEvent("keydown", e);
    },

    // private
    onDestroy : function(){
        if(this.rendered){
            if(this.loadMask){
                this.loadMask.destroy();
            }
            var c = this.body;
            c.removeAllListeners();
            this.view.destroy();
            c.update("");
        }
        this.colModel.purgeListeners();
        Ext.grid.GridPanel.superclass.onDestroy.call(this);
    },

    // private
    processEvent : function(name, e){
        this.fireEvent(name, e);
        var t = e.getTarget();
        var v = this.view;
        var header = v.findHeaderIndex(t);
        if(header !== false){
            this.fireEvent("header" + name, this, header, e);
        }else{
            var row = v.findRowIndex(t);
            var cell = v.findCellIndex(t);
            if(row !== false){
                this.fireEvent("row" + name, this, row, e);
                if(cell !== false){
                    this.fireEvent("cell" + name, this, row, cell, e);
                }
            }
        }
    },

    // private
    onClick : function(e){
        this.processEvent("click", e);
    },

    // private
    onMouseDown : function(e){
        this.processEvent("mousedown", e);
    },

    // private
    onContextMenu : function(e, t){
        this.processEvent("contextmenu", e);
    },

    // private
    onDblClick : function(e){
        this.processEvent("dblclick", e);
    },

    // private
    walkCells : function(row, col, step, fn, scope){
        var cm = this.colModel, clen = cm.getColumnCount();
        var ds = this.store, rlen = ds.getCount(), first = true;
        if(step < 0){
            if(col < 0){
                row--;
                first = false;
            }
            while(row >= 0){
                if(!first){
                    col = clen-1;
                }
                first = false;
                while(col >= 0){
                    if(fn.call(scope || this, row, col, cm) === true){
                        return [row, col];
                    }
                    col--;
                }
                row--;
            }
        } else {
            if(col >= clen){
                row++;
                first = false;
            }
            while(row < rlen){
                if(!first){
                    col = 0;
                }
                first = false;
                while(col < clen){
                    if(fn.call(scope || this, row, col, cm) === true){
                        return [row, col];
                    }
                    col++;
                }
                row++;
            }
        }
        return null;
    },

    // private
    getSelections : function(){
        return this.selModel.getSelections();
    },

    // private
    onResize : function(){
        Ext.grid.GridPanel.superclass.onResize.apply(this, arguments);
        if(this.viewReady){
            this.view.layout();
        }
    },

    /**
     * Returns the grid's underlying element.
     * @return {Element} The element
     */
    getGridEl : function(){
        return this.body;
    },

    // private for compatibility, overridden by editor grid
    stopEditing : Ext.emptyFn,

    /**
     * Returns the grid's SelectionModel.
     * @return {Ext.grid.AbstractSelectionModel SelectionModel} The selection model configured by the
     * @link (#selModel} configuration option. This will be a subclass of {Ext.grid.AbstractSelectionModel}
     * which provides either cell or row selectability.
     */
    getSelectionModel : function(){
        if(!this.selModel){
            this.selModel = new Ext.grid.RowSelectionModel(
                    this.disableSelection ? {selectRow: Ext.emptyFn} : null);
        }
        return this.selModel;
    },

    /**
     * Returns the grid's data store.
     * @return {Ext.data.Store} The store
     */
    getStore : function(){
        return this.store;
    },

    /**
     * Returns the grid's ColumnModel.
     * @return {Ext.grid.ColumnModel} The column model
     */
    getColumnModel : function(){
        return this.colModel;
    },

    /**
     * Returns the grid's GridView object.
     * @return {Ext.grid.GridView} The grid view
     */
    getView : function(){
        if(!this.view){
            this.view = new Ext.grid.GridView(this.viewConfig);
        }
        return this.view;
    },
    /**
     * Called to get grid's drag proxy text, by default returns this.ddText.
     * @return {String} The text
     */
    getDragDropText : function(){
        var count = this.selModel.getCount();
        return String.format(this.ddText, count, count == 1 ? '' : 's');
    }

    /** 
     * @cfg {String/Number} activeItem 
     * @hide 
     */
    /** 
     * @cfg {Boolean} autoDestroy 
     * @hide 
     */
    /** 
     * @cfg {Object/String/Function} autoLoad 
     * @hide 
     */
    /** 
     * @cfg {Boolean} autoWidth 
     * @hide 
     */
    /** 
     * @cfg {Boolean/Number} bufferResize 
     * @hide 
     */
    /** 
     * @cfg {String} defaultType 
     * @hide 
     */
    /** 
     * @cfg {Object} defaults 
     * @hide 
     */
    /** 
     * @cfg {Boolean} hideBorders 
     * @hide 
     */
    /** 
     * @cfg {Mixed} items 
     * @hide 
     */
    /** 
     * @cfg {String} layout 
     * @hide 
     */
    /** 
     * @cfg {Object} layoutConfig 
     * @hide 
     */
    /** 
     * @cfg {Boolean} monitorResize 
     * @hide 
     */
    /** 
     * @property items 
     * @hide 
     */
    /** 
     * @method add 
     * @hide 
     */
    /** 
     * @method cascade 
     * @hide 
     */
    /** 
     * @method doLayout 
     * @hide 
     */
    /** 
     * @method find 
     * @hide 
     */
    /** 
     * @method findBy 
     * @hide 
     */
    /** 
     * @method findById 
     * @hide 
     */
    /** 
     * @method findByType 
     * @hide 
     */
    /** 
     * @method getComponent 
     * @hide 
     */
    /** 
     * @method getLayout 
     * @hide 
     */
    /** 
     * @method getUpdater 
     * @hide 
     */
    /** 
     * @method insert 
     * @hide 
     */
    /** 
     * @method load 
     * @hide 
     */
    /** 
     * @method remove 
     * @hide 
     */
    /** 
     * @event add 
     * @hide 
     */
    /** 
     * @event afterLayout 
     * @hide 
     */
    /** 
     * @event beforeadd 
     * @hide 
     */
    /** 
     * @event beforeremove 
     * @hide 
     */
    /** 
     * @event remove 
     * @hide 
     */



    /**
     * @cfg {String} allowDomMove  @hide
     */
    /**
     * @cfg {String} autoEl @hide
     */
    /**
     * @cfg {String} applyTo  @hide
     */
    /**
     * @cfg {String} autoScroll  @hide
     */
    /**
     * @cfg {String} bodyBorder  @hide
     */
    /**
     * @cfg {String} bodyStyle  @hide
     */
    /**
     * @cfg {String} contentEl  @hide
     */
    /**
     * @cfg {String} disabledClass  @hide
     */
    /**
     * @cfg {String} elements  @hide
     */
    /**
     * @cfg {String} html  @hide
     */
    /**
     * @property disabled
     * @hide
     */
    /**
     * @method applyToMarkup
     * @hide
     */
    /**
     * @method enable
     * @hide
     */
    /**
     * @method disable
     * @hide
     */
    /**
     * @method setDisabled
     * @hide
     */
});
Ext.reg('grid', Ext.grid.GridPanel);