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jizy-template

v2.0.0

Published

Page-template helper: fits a content area between header/footer offsets, exposes content/response callbacks and per-body theme detection.

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Links

Git

Maintainers

jizyjizy

Keywords

jizytemplatelayout

Readme

jizy-template

Page-template helper. Fits a content area between header/footer offsets, exposes content/response callbacks, and detects per-body theme classes.

Install

npm install jizy-template

Usage

import jTemplate from 'jizy-template';

const template = new jTemplate({
    theme: 'main',                                  // overridden by body class `theme-*` if present
    contentSelector: 'body > main .page-contents',  // element whose min-height is set
    offsetSelectors: ['body > header', 'body > footer'], // summed to compute the offset
    fitToViewport: true,                            // when false, no min-height is applied
});

template.addOnContentDisplayCallback(($content) => {
    // ran on first render and intended for callers to re-call after content swaps
});

template.addResponseCallbacks((data) => { /* every response */ });
template.addHtmlResponseCallbacks((html) => { /* HTML responses */ });
template.addJsonResponseCallbacks((js)   => { /* JSON-`js` payloads */ });

document.addEventListener('DOMContentLoaded', () => template.ready());

Constructor

new jTemplate(options = {})

| Option | Default | Description | |---|---|---| | theme | 'main' | Default theme. Overridden by the first theme-<name> class on <body>. | | contentSelector | 'body > main .page-contents' | Element whose min-height is set to calc(100vh - <offset>px) when fitToViewport is true. | | offsetSelectors | ['body > header', 'body > footer'] | Elements summed (height + vertical paddings) to compute the offset. | | fitToViewport | true | When false, no min-height is applied and offsets are ignored. | | detectBodyTheme | true | When false, ready() skips the theme-* body-class lookup and theme keeps its constructor value. |

Methods

| Method | Description | |---|---| | ready() | Resolve the content + offset elements, run the first display, fit, and bind resize. | | addOnContentDisplayCallback(fn) | Register a callback fired by onContentDisplay(). | | addResponseCallbacks(fn) | Register a callback fired for both HTML and JSON responses. | | addHtmlResponseCallbacks(fn) | Register a callback fired only for HTML responses. | | addJsonResponseCallbacks(fn) | Register a callback fired only for JSON data.js payloads. | | onContentDisplay() | Run all display callbacks against $content. | | applyViewportFit() | Recompute the content min-height from the current offsets. | | onHtmlResponse(html) | Dispatch HTML to response + html callbacks. | | onJsonResponse(data) | Dispatch data.js to response + json callbacks (when present). |

heightOffsetAdjust is exposed as a public property ((offset) => offset by default) so callers can tweak the computed offset before it's applied.

Side effects on ready()

  • Adds/removes the touchable class on <body> based on 'ontouchstart' in document.documentElement.
  • If detectBodyTheme is true and <body> carries a theme-<name> class, replaces this.theme with the matched name.
  • If fitToViewport === false, clears offsetSelectors so no resize work is done.

Browser global

The packaged build attaches window.jTemplate.