How to Delete controller ExtJS? extjs多个app时,删除其他app的controller

刺骨的言语ヽ痛彻心扉 2022-08-05 15:30 114阅读 0赞

ExtJs currently does not support removal of controllers out of the box. To cleanup a controller, do the following:

*  Extend `Ext.app.EventBus` with a method `uncontrol` that unregisters all event listeners that this controller registered on the EventBus. Check out the source of `Ext.app.EventBus#control` to derive an implementation. Or use [this one][].
 *  Extend `Ext.app.Application` with a method `removeController` that removes a given controller instance from the `controllers` collection. It's a Ext.util.MixedCollection, check out the source for `Ext.app.Application#getController`. Then clean up all registered listeners for that controller using `uncontrol`.
 *  Implement a `destroy` method either on your specific controller and/or extend `Ext.app.Controller`. You should at least call `clearManagedListeners()` and possibly destroy other objects created by this controller like views or stores, if that suits your application architecture and controller life-cycle.

source:

Ext.override(Ext.app.EventBus,{
    	uncontrol:function(controllerArray){
    		var me=this,
    			bus=me.bus,
    			deleteThis,idx;
    			
    		Ext.iterate(bus,function(ev,controllers){
    			Ext.iterate(controllers,function(query,controller){
    				deleteThis=false;
    				
    				Ext.iterate(controller,function(controlName){
    					idx=controllerArray.indexOf(controlName);
    					
    					if(idx>=0){
    						deleteThis=true;
    					}
    				})
    				
    				if(deleteThis){
    					delete controllers[query];
    				}
    			})
    		})
    	}
    })
    
    
    Ext.override(Ext.app.Application,{
    	removeController:function(controllerArray){
    		var me = this;
            me.eventbus.uncontrol(controllerArray);
    	}
    })
    
    Ext.override(Ext.app.Controller,{
    	destroy:function(){
    		var me=this;
    			this.clearManagedListeners();
    	}
    })

[this one]: https://github.com/mitchellsimoens/SubAppDemo/blob/master/assets/overrides/Ext.app.EventBus.js