Hemi.eventHemi JavaScript FrameworkHemi JavaScript Framework/Hemi/HemiHemiThe Event class provides utilities for working with the browser event object, listening to and capturing events, and decorating Framework Objects with an API for scoping handlers back to the object.event3.1.3Utilities for DOM Events.Using event utilitiesThis example shows how to use the event buffer and scopeHandler mechanisms to preserve the event handler context to a specific object instance.Test paragraph

]]>]]>var oObject = Hemi.newObject("DemoType","1.0",true);// Add the scopeHandler method for this object with addScopeBufferHemi.event.addScopeBuffer(oObject);// Create an event handler wrapper with scopeHandler for an onclick event.// Specify the event name and the bit to use the ObjectRegistry.// This creates oObject._prehandle_click which will invoke oObject._handle_click.oObject.scopeHandler("click",0,0,1);oObject._handle_click = function(e){ var oEvent = Hemi.event.getEvent(e); var oSource = Hemi.event.getEventSource(e); // The 'this' object refers to the instance of oObject}; // Add the onclick event to the paragraph element, oParavar oPara = document.getElementById("oPara");// Use the _prehandle_click created by the scopeHandler method.Hemi.event.addEventListener(oPara, "click", oObject._prehandle_click);]]>getEventPossible event objectThe event object.Returns the event object, where the specified parameter may or may not be the event object depending on the browser.cancelEventPossible event objectCancels the event.getEventDestinationPossible event objectThe event destination object.Returns the event destination or target object.getEventOriginationPossible event objectThe event origination or source object.Returns the event origination object.getEventSourcePossible event objectThe event source object.Returns the event source object.scopeHandlerEvent name, such as click, or load.Reference object for which the event handler should have context. Object must be registered with ObjectRegistry.Bit indicating whether or not the custom handler should be set on the specified object.Bit indicating whether the context should be referenced using the ObjectRegistry if true, or the this reference if false.Custom event handler function.Creates a custom event handler, _prehandle_event, which invokes _handle_event for the specified object, using the specified context. This method is created by addScopeBuffer._prehandle_eventReturns value from _handle_eventInternal event handler used to establish context and to invoke the custom handler._handle_eventReturns developer specified value.A developer specified event handler that is invoked after binding an event to the _prehandle_event handler, and which has the context specified by the scopeHandler method.addScopeBufferA possible event object. Use _gevt to resolve the event object.Creates the scopeHandler method on the specified object.The Event class provides utilities for working with the browser event object, listening to and capturing events, and decorating Framework Objects with an API for scoping handlers back to the object.Hemi_api.htmlAPI Index