-
Notifications
You must be signed in to change notification settings - Fork 1k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
5e44633
commit 0c2bc06
Showing
5 changed files
with
59 additions
and
47 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,39 +1,23 @@ | ||
| export default function() { | ||
| let eventTarget, eventListener, eventKey; | ||
| const allHandlers = new Map(); | ||
|
|
||
| return { | ||
| on(type, listener, key) { | ||
| eventTarget = eventTarget || document.body.appendChild(document.createComment('')); | ||
| eventKey = key; | ||
| eventListener = function(e) { listener(e.detail); }; | ||
| eventTarget.addEventListener(type, eventListener); | ||
| return this; | ||
| }, | ||
| once(type, listener, key) { | ||
| eventTarget = eventTarget || document.body.appendChild(document.createComment('')); | ||
| eventKey = key; | ||
| eventListener = function(e) { listener(e.detail); }; | ||
| eventTarget.addEventListener(type, eventListener, { once: true }); | ||
| return this; | ||
| }, | ||
| off(type, key) { | ||
| if (eventTarget && eventListener && eventKey === key) { | ||
| eventTarget.removeEventListener(type, eventListener); | ||
| } | ||
| return this; | ||
| on(type, handler) { | ||
| let handlers = allHandlers.get(type); | ||
| if (!handlers) | ||
| handlers = [handler]; | ||
| else | ||
| handlers.push(handler); | ||
|
|
||
| allHandlers.set(type, handlers); | ||
| }, | ||
| emit(type, detail) { | ||
| if (eventTarget) { | ||
| eventTarget.dispatchEvent(new CustomEvent(type, { detail })); | ||
| } | ||
| return this; | ||
| off(type, handler) { | ||
| let handlers = allHandlers.get(type); | ||
| handlers && handlers.splice(handlers.indexOf(handler) >>> 0, 1); | ||
| }, | ||
| reset() { | ||
| if (eventTarget) { | ||
| document.body.removeChild(eventTarget); | ||
| eventTarget = eventListener = eventKey = undefined; | ||
| } | ||
| return this; | ||
| emit(type, evt) { | ||
| let handlers = allHandlers.get(type); | ||
| handlers && handlers.slice().forEach(handler => handler(evt)); | ||
| } | ||
| } | ||
| } |