This is an alpha version, provided to the community for their use. Qld Health will not provide support for this design system.
If you are using assets from this Repo, please send an email to qgdesignsystem@chde.qld.gov.au so we can add you to the change management communications list for the formal future state Qld Gov Design System.
This boilerplate is the frontend starting point for design cutups and front end component development for the Queensland Design System.
- Creating a new component
- Component data
- Handlebars template
- Styling a component
- Component JavaScript
- Updating / Previewing a component
- Build / Commit / Push
- Importing into Matrix
When you first clone down the Design System, you automatically get the following:
- Sass compilation + Post CSS autoprefixer
- Templated components with HandlebarsJS
- Babel ES6 conversion
- ESLint
- Hot-reload HTML, CSS and JS
- Node: v16.20.0
- NPM: 8.19.4
First, install all the required packages:
npm install
To preview the Design System on your local machine, run the following command:
npm run serve
This will serve the website into memory in your browser, and will also automatically reload the page after any code changes are saved.
There are two commands you can run when compiling your code for production environments:
npm run build
npm run build-min
Both of these commands will run through the configurations set up in webpack.prod.js to compile all of your HTML, CSS, and JavaScript for use on a production system.
Instead of just serving the site into memory in your browser with npm run serve, this will actually build your files into the /dist directory.
All existing components are located in src/components, and you can find the base component template in src/components/_template. Run the command npm run add-component and follow the prompts to create a new component from this template.
Please note: If you've still got npm run serve running in another console window, you'll need to restart that process for Webpack to recognise it.
Each new component will include the following files, which will require updating:
- js/manifest.json - Define the data structure for your component (see below)
- html/component.hbs - Define the structure of your component using HandlebarsJS templating
- css/component.scss - Style your component using SASS
- js/global.js - Frontend JavaScript for your component (eg. toggling of accordions)
At the same time, the script will also automatically create a corresponding component HTML page at src/html/component-[component-name], which will allow you to preview the component via npm run serve.
For more details on each of these, see the sections below.
Step 1 after creating your new component is to define its data structure via its manifest.json file.
Use the component object to define some global properties (Eg. name, description, version etc.).
Then, use the metadata object inside the data object to define each of the various editable fields. For each field, ensure to define the type (eg. metadata_field_text) and a default value (see below for examples). Also note that the field name (ie. the object key) must be in 'snake_case' (ie. lowercase with underscores).
Here is an example from the existing Banner Home component:
{
"component": {
"name": "Banner Home",
"description": "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.",
"version": "0",
"status": "Released",
"data": {
"metadata": {
"heading": {
"type": "metadata_field_text",
"description": "",
"friendly_name": "Heading",
"value": "Heading",
"required": false,
"editable": true
},
"background_image": {
"type": "metadata_field_related_asset",
"description": "",
"friendly_name": "Background Image (Default/Responsive)",
"value": "/mysource_files/banner-bg.png",
"required": false,
"editable": true
},
// More fields go here
}
}
}
}
You can also use the manifest file to configure certain fields for conditional display in the Matrix editing interface. These rules can be defined for each metadata field under the display_if property.
Below is an example showing the background_image_alignment field in the Banner Advanced component. In this particular case, if background_type is equal to 'image' OR 'image-multi', then we show the background_image_alignment field. Have a look at that component for more examples.
"background_image_alignment": {
"type": "metadata_field_select",
"description": "",
"friendly_name": "Background alignment",
"value": "center",
"options": {
"left": "Left",
"right": "Right",
"center": "Center"
},
"required": false,
"editable": true,
"display_if": {
"show": true,
"operator": "OR",
"rules": [{
"field": "background_type",
"operator": "equals",
"value": "image"
}, {
"field": "background_type",
"operator": "equals",
"value": "image-multi"
}]
}
}
There are also two optional arrays available inside the component object (children and assets) that can be used for a component that lists multiple items (Eg. Cards or Tags).
To populate the children array, you need to create a field named root_node within the metadata object. In Matrix, the template will look for a field with this exact name. If it exists, it will automatically populate the children array with a JSON blob containing the %asset_data% of each child asset under that root_node.
See the Cards component for an example of this (example manifest.json below).
{
"component": {
"name": "Cards",
"description": "The card component is used to provide a brief summary of content or a task, often with a link to more detail. Cards are frequently displayed alongside other cards to group related content or tasks.",
"version": "1.0",
"status": "Released",
"data": {
"metadata": {
//... Other component metadata
"root_node": {
"type": "metadata_field_related_asset",
"description": "",
"friendly_name": "Parent asset",
"value": "",
"required": false,
"editable": true
}
}
},
// Automatically populated by children of the 'root_node'
"children": [{
"assetid": "22724",
"type_code": "page_redirect",
"version": "0.0.1",
"name": "Brand",
"short_name": "Brand",
"status": "2",
"languages": "en",
"charset": "utf-8",
"created": "2021-07-19 10:06:21",
"created_userid": "312",
"updated": "2021-07-19 10:16:04",
"updated_userid": "312",
"published": "Never",
"published_userid": "",
"status_changed": "2021-07-19 10:06:21",
"status_changed_userid": "312",
"thumbnail": "/mysource_files/card--brand.png",
"attributes": {
"short_name": {
"attrid": "2069",
"type": "text",
"value": "Brand",
"is_contextable": true,
"use_default": true
},
// ... All other attributes
},
"metadata": {
"description": {
"value": "",
"fieldid": "22261",
"type": "metadata_field_text",
"is_contextable": true,
"default_value": false,
"use_default": true
},
// ... All other metadata
}
},
// ... All other child assets
]
}
}
The second array available is the assets array. Instead of picking a parent node, this one is controlled by a related metadata field named asset_select. In Matrix, the template will look for a field with this exact name. If it exists, it will automatically populate the assets array with a JSON blob containing the %asset_data% of each selected asset in the asset_select field.
See the Tags List Linked component for an example of this (example manifest.json below).
{
"component": {
"name": "Tag List Linked",
"description": "Tags are a means of classifying content, typically using keywords or labels. They are added to a web page, an asset or other content to help users search for and find related content quickly and easily.",
"version": "0",
"status": "In Development",
"data": {
"metadata": {
// ... Other component metadata
"asset_select": {
"type": "metadata_field_related_asset",
"description": "",
"friendly_name": "Assets to link to",
"value": "1; 2; 3",
"required": false,
"editable": true
}
}
},
// Automatically populated by assets selected in 'asset_select'
"assets": [{
"assetid": "22724",
"type_code": "page_redirect",
"version": "0.0.1",
"name": "Brand",
"short_name": "Brand",
"status": "2",
"languages": "en",
"charset": "utf-8",
"created": "2021-07-19 10:06:21",
"created_userid": "312",
"updated": "2021-07-19 10:16:04",
"updated_userid": "312",
"published": "Never",
"published_userid": "",
"status_changed": "2021-07-19 10:06:21",
"status_changed_userid": "312",
"thumbnail": "23802",
"attributes": {
"short_name": {
"attrid": "2069",
"type": "text",
"value": "Brand",
"is_contextable": true,
"use_default": true
},
// ... All other attributes
},
"metadata": {
"description": {
"value": "",
"fieldid": "22261",
"type": "metadata_field_text",
"is_contextable": true,
"default_value": false,
"use_default": true
},
// ... All other metadata
}
},
// ... All other selected assets
}]
}
}
Use this file to define the overall template structure of your component using HandlebarsJS.
Every component will have access to the data object defined in your manifest.json file, as well as global data values from site and current (ie. the current page). See examples of these at src/data/site.json and src/data/current.json respectively.
Here is an example from the existing Accordion component:
{{#ifCond globals.current.data.metadata.pageType.value '==' 'landing'}}
<section class="qld__body">
<div class="container-fluid">
{{/ifCond}}
{{#if data.heading.value}}
<h2>{{data.heading.value}}</h2>
{{/if}}
{{#if data.intro.value}}
{{{data.intro.value}}}
{{/if}}
<ul class="qld__accordion-group">
{{#each data}}
{{#ifCond this.type '==' 'metadata_field_wysiwyg'}}
{{#ifCond @key '!=' 'intro'}}
{{#ifCond this.value '!=' ''}}
<li>
<section class="qld__accordion">
<button class="qld__accordion__title js-qld__accordion qld__accordion--closed" aria-controls="accordion-group-{{../containerId}}-{{this.fieldid}}" aria-expanded="false" >
{{#getTitle ../data @key}}{{/getTitle}}
</button>
<div class="qld__accordion__body qld__accordion--closed" id="accordion-group-{{../containerId}}-{{this.fieldid}}">
<div class="qld__accordion__body-wrapper">
{{{this.value}}}
</div>
</div>
</section>
</li>
{{/ifCond}}
{{/ifCond}}
{{/ifCond}}
{{/each}}
</ul>
{{#ifCond globals.current.data.metadata.pageType.value '==' 'landing'}}
</div>
</section>
{{/ifCond}}
This example contains instances of both the data object, as well as the globals object. For example, we access the pageType value from the current page to determine whether to add some additional wrapping markup.
There are also some examples of custom Handlebars Helpers being used (Eg. ifCond and getTitle). Each helper is defined in its own JS file under src/helpers/Handlebars. You can add your own helpers by creating additional JS files (one per helper) in this directory, and following the same code structure.
For example:
module.exports = function (params) {
// Helper function goes here
};
Use SASS to style your component, and follow the BEM methodology when naming your classes (Eg. .qld__accordion--light). To maintain consistency, look at existing components if you are unsure.
Also take care to follow a 'mobile-first' approach with your SCSS code, where styling at larger breakpoints (see src/styles/imports/variables.scss for breakpoint definitions) can be implemented with one of the following mixins:
// >sm breakpoint
@include QH-media( sm ) {}
// >md breakpoint
@include QH-media( md ) {}
// >lg breakpoint
@include QH-media( lg ) {}
// >xl breakpoint
@include QH-media( xl ) {}
// >xxl breakpoint
@include QH-media( xxl ) {}
These should be implemented inline for each class separately (see banner component for a good example)
This is where you should add any client side JavaScript (eg. toggling of Accordions). Ensure that all functions are documented in Jsdoc format.
To test any updates to a component, you can view it locally using npm run serve. A corresponding component page will be automatically created at src/html/component-[component-name], so that you can easily preview your component, and test the output with different input data.
Once you are ready to push up any local changes to a component, you should run the npm run build script before you commit. This generates the compiled Handlebars template, as well as an import.xml file that can be used to automatically create all of the assets required in Matrix for your component.
To import your finished component, go to the Matrix Admin interface and in the 'Tools' menu select 'Import assets from XML'. Choose the 'import.xml' file generated for your component on build, and select the 'Components' folder in the 'Import Assets Under' field.
After successful import, you should have a new Content Template in Matrix with a Metadata Schema that matches your manifest.json file.
This section contains some general tips for writing code using this boilerplate
- Your files live in:
- src/files/my-awesome-file.png
- And you're wanting to include an image in:
- src/modules/header/html/index.html
- Use either reference:
- Relative path:
<img src="../../../files/my-awesome-file.png" alt="My awesome file" > - Absolute path:
<img src="~src/files/my-awesome-file.png" alt="My awesome file" >
- Relative path:
- Your awesome menu lives in:
- src/modules/header-menu/html/index.html
- And you want to include it in:
- src/modules/header/html/index.html
- Use either reference:
- Relative path:
${require('../../header-menu/html/index.html')} - Absolute path:
${require('src/header-menu/html/index.html')}
- Relative path:
- Your fonts live in:
- src/styles/imports/fonts/my-awesome-font.woff
- And you want to include it in your main CSS:
- src/styles/global.scss
- Use either reference:
- Relative path:
url('./imports/fonts/my-awesome-font.woff') format('woff') - Absolute path:
url('~src/imports/fonts/my-awesome-font.woff') format('woff')
- Relative path:
- Your files live in:
- src/files/icon.png
- And you're wanting to include an image in:
- src/modules/header/css/global.scss
- Use either reference:
- Relative path:
background-image: url('../files/icon.png'); - Absolute path:
background-image: url('~src/files/icon.png');
- Relative path:
- Your files live in:
- src/files/icon.png
- And you're wanting to include an image in:
- src/modules/header/js/global.js
- Use either reference:
- Relative path:
const icon = require('../../../files/icon.png'); - Absolute path:
const icon = require('src/files/icon.png');
- Relative path:
You may want to reference an external JSON file that does not need to be a part of the webpack build process. For instance, mock data returned from funnelback autocomplete. The /externals directory allows you to pop in files to ensure that they will be included in the /dist directory
- Your file lives in:
src/externals/data.json
- You can reference it by its relative path ie.
fetch('./externals/data.json').then(function(response){...do stuff})
- Or its absolute path ie.
fetch('~src/externals/data.json').then(function(response){...do stuff})
- File will be moved into the dist directory
dist/externals/data.json
- To build and test all:
mvn install - To build js docs
mvn com.github.eirslett:frontend-maven-plugin:npm@jsdoc - To run webpack serve
mvn com.github.eirslett:frontend-maven-plugin:npm@serve
Thank you for contributing to our project! To ensure a smooth and efficient review process, please follow these guidelines when submitting a pull request.
Before creating a pull request, please make sure to:
- Fork the repository and create a branch for your changes.
- Ensure your code follows our coding standards and guidelines.
- Update the documentation if your changes affect it.
- Write tests for your changes if applicable.
We use labels to categorize pull requests based on the type of change. Please add one of the following labels to your pull request:
-
Label: major
-
- Use this label for significant changes that require attention.
-
- Examples: Breaking changes, major feature enhancements.
-
- Expect a thorough review and discussion before merging.
-
Label: minor
-
- Apply this label for smaller, backward-compatible changes.
-
- Examples: New features, improvements.
-
- Generally, a quicker review process compared to major changes.
-
Label: patch
-
- Assign this label for minor bug fixes and patches.
-
- Examples: Bug fixes, small improvements.
-
- Typically fast-tracked for a swift review and merging.
When your changes are ready, submit the pull request with a clear and informative title. Provide a brief description of the changes and reference any relevant issues.
Feel free to reach out if you have questions or need assistance during the review process. We appreciate your contributions and look forward to collaborating with you!
Copyright (c) The State of Queensland 2023 (Queensland Health)
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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