You found a bug! We've classified it as EXTJS-5620 . We encourage you to continue the discussion and to find an acceptable workaround while we work on a permanent fix.
  1. #1
    Ext JS Premium Member burnnat's Avatar
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    Default [4.1b3] Trigger field blur events don't pass event objects

    [4.1b3] Trigger field blur events don't pass event objects


    REQUIRED INFORMATION
    Ext version tested:
    • Ext 4.1b3
    • Ext 4.1b2
    • Ext 4.1b1

    Browser versions tested against:
    • FF 10 (firebug 1.91)
    • IE8
    • Chrome 16

    Description:
    • The 'blur' event for TriggerField components does not supply an event object to its listeners, even though the documentation indicates that it should. (Note: I'm referring to the 4.1 docs bundled with the beta release, not the out-of-date 4.0 documentation online.)

    Steps to reproduce the problem:
    • Create a TriggerField with a listener for the 'blur' event.
    • Attempt to use the event object parameter given to the listener function.

    The result that was expected:
    • The event object should be passed to the listener.

    The result that occurs instead:
    • The event object is undefined.

    Test Case:
    Code:
    Ext.onReady(function() {
    	Ext.create('Ext.form.field.Trigger', {
    		renderTo: Ext.getBody(),
    		listeners: {
    			focus: function(cmp, event) {
    				console.log(event); // prints an appropriate event object
    			},
    			blur: function(cmp, event) {
    				console.log(event); // prints undefined
    			}
    		}
    	});
    });
    HELPFUL INFORMATION
    Debugging already done:
    • This appears to be an issue in the source for the trigger field's mimicBlur and triggerBlur methods:
      Code:
      // private
      mimicBlur: function(e) {
          if (!this.isDestroyed && !this.bodyEl.contains(e.target) && this.validateBlur(e)) {
              this.triggerBlur(); // the event object 'e' is not passed to the triggerBlur method
          }
      },
      
      // private
      triggerBlur: function() {
          var me = this;
          me.mimicing = false;
          me.mun(me.doc, 'mousedown', me.mimicBlur, me);
          if (me.monitorTab && me.inputEl) {
              me.un('specialkey', me.checkTab, me);
          }
          Ext.form.field.Trigger.superclass.onBlur.call(me); // no event object is passed to the superclass
          if (me.bodyEl) {
              me.bodyEl.removeCls(me.wrapFocusCls);
          }
      },

    Possible fix:
    • Starting on line 379 of Trigger.js, modify the mimicBlur and triggerBlur methods to pass the event object:
      Code:
      mimicBlur: function(e) {
          if (!this.isDestroyed && !this.bodyEl.contains(e.target) && this.validateBlur(e)) {
              this.triggerBlur(e);
          }
      },
      
      triggerBlur: function(e) {
          var me = this;
          me.mimicing = false;
          me.mun(me.doc, 'mousedown', me.mimicBlur, me);
          if (me.monitorTab && me.inputEl) {
              me.un('specialkey', me.checkTab, me);
          }
          Ext.form.field.Trigger.superclass.onBlur.call(me, e);
          if (me.bodyEl) {
              me.bodyEl.removeCls(me.wrapFocusCls);
          }
      }

    Additional CSS used:
    • only default ext-all.css

    Operating System:
    • Win7

  2. #2
    Sencha - Senior Forum Manager mitchellsimoens's Avatar
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    Default


    Thanks for the report.
    Mitchell Simoens @SenchaMitch
    Sencha Inc, Senior Forum Manager
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