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Behavior Attachment: Difference between revisions
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(Formatting tweaks) |
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| Line 4: | Line 4: | ||
|+ Comparison between the decorator and element behavior attachment. | |+ Comparison between the decorator and element behavior attachment. | ||
! width="10%" | | ! width="10%" | | ||
! width="40%" | Decorator | ! width="40%" align="left" | Decorator | ||
! width="40%" | Element | ! width="40%" align="left" | Element | ||
|- | |- | ||
! Use Cases | ! align="right" | Use Cases | ||
| | | | ||
* Add special UI treatment to all vcards in a document | * Add special UI treatment to all vcards in a document | ||
| Line 13: | Line 13: | ||
| Custom controls (TODO: expand) | | Custom controls (TODO: expand) | ||
|- | |- | ||
! Identity | ! align="right" | Identity | ||
| Does not change the identity of the element. | | Does not change the identity of the element. | ||
| Creates a new type of element. | | Creates a new type of element. | ||
|- | |- | ||
! Lifetime | ! align="right" | Lifetime | ||
| Transient, added and removed dynamically. | | Transient, added and removed dynamically. | ||
| Permanent, originates with the element’s creation and exists through the lifetime. | | Permanent, originates with the element’s creation and exists through the lifetime. | ||
|- | |- | ||
! Content Environment | ! align="right" | Content Environment | ||
| Foreign document or limited control of content | | Foreign document or limited control of content | ||
| Full control | | Full control of content | ||
|- | |- | ||
! Shadow Tree | ! align="right" | Shadow Tree | ||
| Each decorator must have its own shadow subtree, and the aggregate shadow tree of an element is composed out of these subtrees. | | Each decorator must have its own shadow subtree, and the aggregate shadow tree of an element is composed out of these subtrees. | ||
| Only one tree, initialized as the element is created. | | Only one tree, initialized as the element is created. | ||
|- | |- | ||
! DOM API | ! align="right" | DOM API | ||
| Should avoid adding any extra methods or properties to the DOM element that’s being decorated. | | Should avoid adding any extra methods or properties to the DOM element that’s being decorated. | ||
| Explicitly interested in exposing methods or properties on the DOM element as its API. | | Explicitly interested in exposing methods or properties on the DOM element as its API. | ||
|} | |} | ||
Revision as of 17:42, 4 July 2011
WORK IN PROGRESS
| Decorator | Element | |
|---|---|---|
| Use Cases |
|
Custom controls (TODO: expand) |
| Identity | Does not change the identity of the element. | Creates a new type of element. |
| Lifetime | Transient, added and removed dynamically. | Permanent, originates with the element’s creation and exists through the lifetime. |
| Content Environment | Foreign document or limited control of content | Full control of content |
| Shadow Tree | Each decorator must have its own shadow subtree, and the aggregate shadow tree of an element is composed out of these subtrees. | Only one tree, initialized as the element is created. |
| DOM API | Should avoid adding any extra methods or properties to the DOM element that’s being decorated. | Explicitly interested in exposing methods or properties on the DOM element as its API. |