Page State Helper for client side websites

Utility hooks to help organize a site's client-side state, and easily change the view according to state through html data attributes. Conceptually combines ideas from Bootstrap & Redux.

See published npm package

Import:

• Web: <script src="https://unpkg.com/page_state/build/bundle.min.js"></script>
• Node: npm i web_page_state

How to use?

- HTML

Attribute	Note	Example
data-ws-show-if	Show element if ANY (ie OR) of the state props specified in the attribute (space separated) is true, otherwise set 'display' style to 'none'. To achieve AND simply nest elements.	- Simple: <button data-ws-show-if="isSignedIn">Sign Out</button> - OR: <div data-ws-show-if="isIOS isAndroid">You are on iOS OR Android</div> - AND: <div data-ws-show-if="isSignedIn"><p data-ws-show-if="isIOS"><Welcome user on iOS</p></div>
data-ws-show-if-not	Show element if ANY (ie OR) of the NEGATED state props specified in the attribute (space separated) is true, otherwise set 'display' style to 'none'	<button data-ws-show-if-not="isSignedIn">Sign In</button>
data-ws-label	Replaces the element's innerText with the prop's value	<p>Welcome <span data-ws-label="user.name"></span></p>

- js

Property	Type	Description
pageState	Object	Holds the raw state.
updatePageStateWithParams	Function	Examples: updatePageStateWithParams({countryName: "Brazil"})
toastNotification	Function	Example: toastNotification("Copied", "Successfully copied to clipboard", false, false);
dismissNotification	Function	Remove previously toasted notification
setUser	Function	Examples: - On sign in: setUser({name: "Ronen", uid: "987dkjbc987"}); - On sign out: setUser(null);
getParam	Function	getParam("user.uid");
toggleParam	Function	toggleParam("isFullScreen");
registerListener	Function	Returns the index / id as number of the new listener. This index can be used to remove the listener. Example: let index = PageState.registerListener(function(newState){/* do something */}); PageState.unregisterListener(index);
unregisterListener	Function	Use the index generated when 'registered'. Example: let index = PageState.registerListener(function(newState){/* do something */}); PageState.unregisterListener(index);

- State's special keys - do not set directly

// TODO: Prohibit direct setting by mistake?

Key	Type
user	Object, set with setUser
isNotification	boolean, semi-automatic: based on 'toastNotification'
notificationTitle	boolean, semi-automatic: based on 'toastNotification'
notificationMsg	boolean, semi-automatic: based on 'toastNotification'
platform	String, automatic
isMobile	boolean, automatic
isIOS	boolean, automatic
isAndroid	boolean, automatic
isOffline	boolean, automatic
isSignedIn	boolean, semi-automatic: based on 'user'

How to use?

When used in browser:

Place the following at the end of the body tag, and prior to using the wsGlobals.PageState.updateStateWithProps

<script src="https://unpkg.com/page_state/build/bundle.min.js"></script>

No need to initialize - it is initialized in code.

When used in a webpack / other node client-side webpage builder:

Use import or require... // TODO: Do we need to initialize? Check...

Showcases

This is used on the following sites:

• Speechnotes - Lightweight Speech Recognizing Notepad
• TTSReader - Online Text To Speech Reader

TODOs:

• In data-ws-show-if-not we let the function - if exists - override the property, which is inconsistent with the non-negated data-ws-show-if...
• Prohibit direct setting of reserved props / functions by mistake?
• Set/get style to the element's html set style prior to setting it to "none"

How to contribute & publish updates to this package?

• This package is published both on GitHub and on npmjs.
• To publish an updated version - simply run npm publish, it will commit & push updates both to github and npm.