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Dive Into Javascript Event 澄净 [email protected] Monday, September 3, 12

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Dive Into Javascript Event 澄净 [email protected] Monday, September 3, 12

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Monday, September 3, 12

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Outline Event Type Event Mechanism Implement an Event Library Monday, September 3, 12

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Monday, September 3, 12

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Event Type Monday, September 3, 12

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Interface Events Event Type scroll resize focus blue ... Monday, September 3, 12

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Interface Events Event Type Mouse Events scroll resize focus blue ... mouseover mouseout ... Monday, September 3, 12

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Interface Events Event Type Mouse Events scroll resize focus blue ... mouseover mouseout ... Form Events submit reset ... Monday, September 3, 12

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Interface Events Event Type Mouse Events scroll resize focus blue ... mouseover mouseout ... Form Events submit reset ... W3C Events dom manipulation... Monday, September 3, 12

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Interface Events Event Type Mouse Events scroll resize focus blue ... mouseover mouseout ... Form Events submit reset ... W3C Events dom manipulation... Microsoft Events mouseenter mouseleave... Monday, September 3, 12

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Monday, September 3, 12

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Mouse Event Monday, September 3, 12

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Mouse Event click dblclick mouseover mousedownmousemove mouseout Monday, September 3, 12

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Mouse Event click dblclick mouseover mousedownmousemove mouseout mouseenter mouseleave Monday, September 3, 12

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Monday, September 3, 12

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Mouse Event Monday, September 3, 12

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Mouse Event Monday, September 3, 12

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Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Click Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Registration Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Attention! Event Mechanism Monday, September 3, 12

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Event Mechanism Attention! Event Mechanism Monday, September 3, 12

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Event Mechanism Attention! Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Attention! Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Attention! Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? ≠ Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? ≠ Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? ≠ Monday, September 3, 12

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Event Mechanism Event Mechanism Same Parameters? ≠ ≠ Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners alert(1) alert(2) Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners alert(1) alert(2) Queue Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners alert(1) alert(2) Queue Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners alert(1) alert(2) alert(2) alert(1) Queue Monday, September 3, 12

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Event Mechanism Event Mechanism Sequence of Multiple Listeners alert(1) alert(2) alert(2) alert(1) Queue Stack Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Event Object Monday, September 3, 12

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Event Mechanism Event Mechanism Event Object Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Turn Bubbling Off Monday, September 3, 12

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Event Mechanism Event Mechanism Turn Bubbling Off Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Target will always be element2 Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Target will always be element2 e.currentTarget Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Target will always be element2 e.currentTarget Monday, September 3, 12

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Event Mechanism Event Mechanism Event Target Target will always be element2 e.currentTarget Monday, September 3, 12

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Event Mechanism Event Mechanism Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Event Mechanism Event Mechanism “This” in Event In Javascript this always refers to the “owner” of the function we’re executing, or rather, to the object that a function is a method of Example: Register click handler on div1 Monday, September 3, 12

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Implement an Event Library Monday, September 3, 12

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Implement an Event Library Version One Monday, September 3, 12

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Implement an Event Library Version One Monday, September 3, 12

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Implement an Event Library Monday, September 3, 12

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Implement an Event Library Version Two: “this” Monday, September 3, 12

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Implement an Event Library Version Two: “this” Monday, September 3, 12

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Implement an Event Library Monday, September 3, 12

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Implement an Event Library Version Three: e and data Monday, September 3, 12

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Implement an Event Library Version Three: e and data Monday, September 3, 12

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Implement an Event Library Version Three: e and data Monday, September 3, 12

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Implement an Event Library Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data TODO: Encapsulate the original event object Monday, September 3, 12

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Implement an Event Library Version Three: Combine e and data TODO: Encapsulate the original event object Monday, September 3, 12

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Monday, September 3, 12

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Monday, September 3, 12

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Acknowledge Monday, September 3, 12

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Acknowledge PPK: http://www.quirksmode.org W3C: http://www.w3.org/TR/2000/REC-DOM-Level-2- Events-20001113/ YUI Source Code(v2.8.1): http://developer.yahoo.com/yui/2/ JQuery Source Code(v1.4): http://jquery.com/ Google Closure Library: http://code.google.com/closure/ library/ Monday, September 3, 12

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Thanks! Monday, September 3, 12