budibase/packages/standard-components/src/button.svelte

<script>
import cssVars from "./cssVars";
import {buildStyle} from "./buildStyle";
export let className = "default";
export let disabled = false;
export let contentText;
export let onClick;
export let background;
export let color;
export let border;
export let padding;
export let hoverColor;
export let hoverBackground;
export let hoverBorder;
export let _children;

export let _bb;
let theButton;
let cssVariables;
let buttonStyles;

let customHoverColorClass;
let customHoverBorderClass;
let customHoverBackClass;

let customClasses = "";

const createClasses = (classes) => {
	let all = "";
	for(let cls in classes) {
		if(classes[cls]) {
			all = all + " " + cls;
		}
	}
	return all;
}

$:{
	if(_bb && theButton && _children && _children.length)
		_bb.hydrateChildren(_children, theButton);
}

$:{
	cssVariables = {
		hoverColor, hoverBorder,
		hoverBackground,
		background, color, border,
	};

	buttonStyles = buildStyle({
		padding
	});	
	
	customClasses = createClasses({
		hoverColor, hoverBorder, hoverBackground,
		background, border, color
	});
}




const clickHandler = () => {
	_bb.call(onClick);
}

</script>


<button bind:this={theButton}
		use:cssVars={cssVariables} 
		class="{className} {customClasses}" 
		disabled={disabled || false} 
		on:click={clickHandler} 
		style={buttonStyles}>
    {#if !_children || _children.length === 0}
    {contentText}
    {/if}
</button>


<style>

.default {
	font-family: inherit;
	font-size: inherit;
	padding: 0.4em;
	margin: 0 0 0.5em 0;
	box-sizing: border-box;
	border: 1px solid #ccc;
	border-radius: 2px;
	color: #333;
	background-color: #f4f4f4;
	outline: none;
}

.default:active {
	background-color: #ddd;
}

.default:focus {
	border-color: #666;
}

.border {
	border: var(--border);
}

.color {
	color: var(--color);
}

.background {
	background: var(--background);
}

.hoverBorder:hover {
	border: var(--hoverBorder);
}

.hoverColor:hover {
	color: var(--hoverColor);
}

.hoverBack:hover {
	background: var(--hoverBackground);
}


</style>