web_page_state
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Simple straightforward tool to manage webpage state on the client side and hook state to html tags on page without code
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# 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](https://www.npmjs.com/package/web_page_state)
## 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'. <br>To achieve AND simply nest elements. | - Simple: `<button data-ws-show-if="isSignedIn">Sign Out</button>` <br> - OR: `<div data-ws-show-if="isIOS isAndroid">You are on iOS OR Android</div>` <br> - 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: <br/> `updatePageStateWithParams({countryName: "Brazil"})` |
| toastNotification | Function | Example: `toastNotification("Copied", "Successfully copied to clipboard", false, false);` |
| dismissNotification | Function | Remove previously toasted notification |
| setUser | Function | Examples:<br>- On sign in: `setUser({name: "Ronen", uid: "987dkjbc987"});` <br>- 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](https://speechnotes.co/)
- [TTSReader - Online Text To Speech Reader](https://ttsreader.com/)
## 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.