Merge branch 'master' of github.com:Budibase/budibase

.eslintrc.json

@@ -0,0 +1,23 @@
+{
+  "env": {
+    "browser": true,
+    "es6": true,
+    "jest": true
+  },
+  "parserOptions": {
+    "ecmaVersion": 2019,
+    "sourceType": "module"
+  },
+  "ignorePatterns": ["node_modules", "dist", "public"],
+  "plugins": ["prettier", "svelte3"],
+  "extends": ["eslint:recommended"],
+  "overrides": [
+    {
+      "files": ["**/*.svelte"],
+      "processor": "svelte3/svelte3"
+    }
+  ],
+  "rules": {
+    "prettier/prettier": "error"
+  }
+}

.github/workflows/budibase_ci.yml

@@ -0,0 +1,35 @@
+name: Budibase CI
+
+on: 
+ # Trigger the workflow on push or pull request,
+ # but only for the master branch
+ push:
+    branches:
+      - master
+ pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn
+    - run: yarn lint
+    - run: yarn build
+    - run: yarn test
+      env:
+        CI: true
+        name: Budibase CI
+

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "tabWidth": 2,
+  "semi": false,
+  "singleQuote": false,
+  "trailingComma": "es5",
+  "plugins": ["prettier-plugin-svelte"]
+}

package.json

@@ -2,7 +2,12 @@
   "name": "root",
   "private": true,
   "devDependencies": {
-    "lerna": "^3.14.1"
+    "eslint": "^6.8.0",
+    "eslint-plugin-prettier": "^3.1.2",
+    "eslint-plugin-svelte3": "^2.7.3",
+    "lerna": "^3.14.1",
+    "prettier": "^1.19.1",
+    "prettier-plugin-svelte": "^0.7.0"
   },
   "dependencies": {},
   "scripts": {
@@ -10,6 +15,9 @@
     "build": "lerna run build",
     "initialise": "lerna run initialise",
     "clean": "lerna clean",
-    "dev": "lerna run --parallel --stream dev:builder"
+    "dev": "lerna run --parallel --stream dev:builder",
+    "test": "lerna run test",
+    "lint": "eslint packages",
+    "format": "prettier --write \"{,!(node_modules)/**/}*.{js,jsx}\""
   }
 }

packages/builder/package.json

@@ -6,6 +6,7 @@
     "build": "rollup -c",
     "start": "rollup -c -w",
     "test": "jest",
+    "test:watch": "jest --watchAll",
     "dev:builder": "rollup -c -w"
   },
   "jest": {

packages/builder/rollup.config.js

@@ -11,34 +11,34 @@ import browsersync from "rollup-plugin-browsersync";
 import proxy from "http-proxy-middleware";
 
 const target = 'http://localhost:4001';
-const _builderProxy =  proxy('/_builder', {
+const _builderProxy = proxy('/_builder', {
-  target:"http://localhost:3000",
+	target: "http://localhost:3000",
-  pathRewrite: {'^/_builder' : ''}
+	pathRewrite: { '^/_builder': '' }
 });
 
-const apiProxy =  proxy(['/_builder/api/**', '/_builder/**/componentlibrary', '/_builder/**/componentlibraryGenerators'] , {
+const apiProxy = proxy(['/_builder/api/**', '/_builder/**/componentlibrary', '/_builder/**/componentlibraryGenerators'], {
 	target,
 	logLevel: "debug",
 	changeOrigin: true,
 	cookieDomainRewrite: true,
 	onProxyReq(proxyReq) {
-	  if (proxyReq.getHeader("origin")) {
+		if (proxyReq.getHeader("origin")) {
-		proxyReq.setHeader("origin", target)
+			proxyReq.setHeader("origin", target)
-	  }
+		}
 	}
-  });
+});
 
 const production = !process.env.ROLLUP_WATCH;
 
-const lodash_fp_exports = ["union", "reduce", "isUndefined", "cloneDeep", "split", "some", "map", "filter", "isEmpty", "countBy", "includes", "last", "find", "constant", 
+const lodash_fp_exports = ["union", "reduce", "isUndefined", "cloneDeep", "split", "some", "map", "filter", "isEmpty", "countBy", "includes", "last", "find", "constant",
-"take", "first", "intersection", "mapValues", "isNull", "has", "isInteger", "isNumber", "isString", "isBoolean", "isDate", "isArray", "isObject", "clone", "values", "keyBy", "isNaN",
+	"take", "first", "intersection", "mapValues", "isNull", "has", "isInteger", "isNumber", "isString", "isBoolean", "isDate", "isArray", "isObject", "clone", "values", "keyBy", "isNaN",
-"keys", "orderBy", "concat", "reverse", "difference", "merge", "flatten", "each", "pull", "join", "defaultCase", "uniqBy", "every", "uniqWith", "isFunction", "groupBy", 
+	"keys", "orderBy", "concat", "reverse", "difference", "merge", "flatten", "each", "pull", "join", "defaultCase", "uniqBy", "every", "uniqWith", "isFunction", "groupBy",
-"differenceBy", "intersectionBy", "isEqual", "max", "sortBy", "assign", "uniq", "trimChars", "trimCharsStart", "isObjectLike", "flattenDeep", "indexOf", "isPlainObject",
+	"differenceBy", "intersectionBy", "isEqual", "max", "sortBy", "assign", "uniq", "trimChars", "trimCharsStart", "isObjectLike", "flattenDeep", "indexOf", "isPlainObject",
-"toNumber", "takeRight"];
+	"toNumber", "takeRight", "toPairs"];
 
-const lodash_exports = ["flow", "join", "replace", "trim", "dropRight", "takeRight", "head", "reduce",  
+const lodash_exports = ["flow", "join", "replace", "trim", "dropRight", "takeRight", "head", "reduce",
-"tail", "startsWith", "findIndex", "merge",  
+	"tail", "startsWith", "findIndex", "merge",
-"assign", "each", "find", "orderBy", "union"];
+	"assign", "each", "find", "orderBy", "union"];
 
 const outputpath = "../server/builder";
 
@@ -63,7 +63,7 @@ export default {
 				{ src: 'src/favicon.png', dest: outputpath },
 				{ src: 'src/assets', dest: outputpath },
 				{ src: 'node_modules/@budibase/client/dist/budibase-client.esm.mjs', dest: outputpath },
-			  ]
+			]
 		}),
 
 		svelte({
@@ -80,28 +80,28 @@ export default {
 		resolve({
 			browser: true,
 			dedupe: importee => {
-				return importee === 'svelte' 
+				return importee === 'svelte'
-					   || importee.startsWith('svelte/')
+					|| importee.startsWith('svelte/')
-					   || coreExternal.includes(importee);
+					|| coreExternal.includes(importee);
 			}
-		
+
 		}),
 		commonjs({
 			namedExports: {
 				"lodash/fp": lodash_fp_exports,
-				"lodash":lodash_exports,
+				"lodash": lodash_exports,
 				"shortid": ["generate"]
 			}
 		}),
 		url({
-			limit: 0, 
+			limit: 0,
-			include: ["**/*.woff2", "**/*.png"], 
+			include: ["**/*.woff2", "**/*.png"],
 			fileName: "[dirname][name][extname]",
 			emitFiles: true
 		}),
 		url({
-			limit: 0, 
+			limit: 0,
-			include: ["**/*.css"], 
+			include: ["**/*.css"],
 			fileName: "[name][extname]",
 			emitFiles: true
 		}),
@@ -113,7 +113,7 @@ export default {
 		!production && livereload(outputpath),
 		!production && browsersync({
 			server: outputpath,
-			middleware: [apiProxy,_builderProxy]
+			middleware: [apiProxy, _builderProxy]
 		}),
 
 		// If we're building for production (npm run build

packages/builder/src/builderStore/generate_css.js

@@ -0,0 +1,118 @@
+import { filter, map, reduce, toPairs } from "lodash/fp";
+import { pipe } from "../common/core";
+
+const self = n => n;
+const join_with = delimiter => a => a.join(delimiter);
+const empty_string_to_unset = s => s.length ? s : "0";
+const add_suffix = suffix => s => s + suffix;
+
+export const make_margin = (values) => pipe(values, [
+	map(empty_string_to_unset),
+	map(add_suffix('px')),
+	join_with(' ')
+]);
+
+const tap = message => x => {
+	console.log(x);
+	return x;
+}
+
+const css_map = {
+	templaterows: {
+		name: 'grid-template-columns',
+		generate: self
+	},
+	templatecolumns: {
+		name: 'grid-template-rows',
+		generate: self
+	},
+	gridarea: {
+		name: 'grid-area',
+		generate: make_margin
+	},
+	gap: {
+		name: 'grid-gap',
+		generate: n => `${n}px`
+	},
+	columnstart: {
+		name: 'grid-column-start',
+		generate: self
+	},
+	columnend: {
+		name: 'grid-column-end',
+		generate: self
+	},
+	rowstart: {
+		name: 'grid-row-start',
+		generate: self
+	},
+	rowend: {
+		name: 'grid-row-end',
+		generate: self
+	},
+	padding: {
+		name: 'padding',
+		generate: make_margin
+	},
+	margin: {
+		name: 'margin',
+		generate: make_margin
+	},
+	zindex: {
+		name: 'z-index',
+		generate: self
+	}
+}
+
+export const generate_rule = ([name, values]) =>
+	`${css_map[name].name}: ${css_map[name].generate(values)};`
+
+const handle_grid = (acc, [name, value]) => {
+	let tmp = [];
+
+	if (name === 'row' || name === 'column') {
+		if (value[0]) tmp.push([`${name}start`, value[0]]);
+		if (value[1]) tmp.push([`${name}end`, value[1]]);
+		return acc.concat(tmp)
+	}
+
+	return acc.concat([[name, value]]);
+}
+
+const object_to_css_string = [
+	toPairs,
+	reduce(handle_grid, []),
+	filter(v => Array.isArray(v[1]) ? v[1].some(s => s.length) : v[1].length),
+	map(generate_rule),
+	join_with('\n'),
+];
+
+export const generate_css = ({ layout, position }) => {
+	let _layout = pipe(layout, object_to_css_string);
+	_layout = _layout.length ? _layout + "\ndisplay: grid;" : _layout;
+
+	return {
+		layout: _layout,
+		position: pipe(position, object_to_css_string)
+	}
+}
+
+const apply_class = (id, name, styles) => `.${name}-${id} {\n${styles}\n}`;
+
+export const generate_screen_css = (component_array) => {
+	let styles = "";
+
+	for (let i = 0; i < component_array.length; i += 1) {
+		const { _styles, _id, _children } = component_array[i];
+		const { layout, position } = generate_css(_styles);
+
+		styles += apply_class(_id, 'pos', position) + "\n";
+		styles += apply_class(_id, 'lay', layout) + "\n";
+
+		if (_children && _children.length) {
+			styles += generate_screen_css(_children) + "\n";
+		}
+
+	}
+	return styles.trim();
+}

packages/builder/src/builderStore/store.js

@@ -4,7 +4,7 @@ import {
 import {
     filter, cloneDeep, sortBy,
     map, last, keys, concat, keyBy,
-    find, isEmpty, reduce, values, isEqual
+    find, isEmpty, values,
 } from "lodash/fp";
 import {
     pipe, getNode, validate,
@@ -17,11 +17,13 @@ import api from "./api";
 import { isRootComponent, getExactComponent } from "../userInterface/pagesParsing/searchComponents";
 import { rename } from "../userInterface/pagesParsing/renameScreen";
 import {
-    getNewComponentInfo, getScreenInfo, getComponentInfo
+    getNewComponentInfo, getScreenInfo,
 } from "../userInterface/pagesParsing/createProps";
 import {
     loadLibs, loadLibUrls, loadGeneratorLibs
 } from "./loadComponentLibraries";
+import { uuid } from './uuid';
+import { generate_screen_css } from './generate_css';
 
 let appname = "";
 
@@ -710,7 +712,8 @@ const addChildComponent = store => component => {
         const component_definition = Object.assign(
             cloneDeep(newComponent.fullProps), {
             _component: component,
-            _layout: {}
+            _styles: { position: {}, layout: {} },
+            _id: uuid()
         })
 
         if (children) {
@@ -729,6 +732,8 @@ const addChildComponent = store => component => {
 
         _saveScreen(store, s, s.currentFrontEndItem);
 
+        _saveScreen(store, s, s.currentFrontEndItem);
+
         return s;
     })
 }
@@ -751,12 +756,13 @@ const setComponentProp = store => (name, value) => {
     })
 }
 
-const setComponentStyle = store => (name, value) => {
+const setComponentStyle = store => (type, name, value) => {
     store.update(s => {
-        if (!s.currentComponentInfo._layout) {
+        if (!s.currentComponentInfo._styles) {
-            s.currentComponentInfo._layout = {};
+            s.currentComponentInfo._styles = {};
         }
-        s.currentComponentInfo._layout[name] = value;
+        s.currentComponentInfo._styles[type][name] = value;
+        s.currentFrontEndItem._css = generate_screen_css(s.currentFrontEndItem.props._children)
 
         // save without messing with the store
         _save(s.appname, s.currentFrontEndItem, store, s)

packages/builder/src/builderStore/uuid.js

@@ -0,0 +1,7 @@
+export function uuid() {
+	return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
+		const r = (Math.random() * 16) | 0,
+			v = c == 'x' ? r : (r & 0x3) | 0x8;
+		return v.toString(16);
+	});
+}

packages/builder/src/common/ActionButton.svelte

@@ -0,0 +1,53 @@
+<script>
+  export let disabled = false;
+  export let hidden = false;
+  export let primary = true;
+  export let alert = false;
+  export let warning = false;
+</script>
+
+<style>
+  .primary {
+    color: #0055ff;
+    background: rgb(54, 133, 249, 0.1);
+  }
+
+  .alert {
+    color: rgba(255, 0, 31, 1);
+    background: rgba(255, 0, 31, 0.1);;
+  }
+
+  .button {
+    font-size: 18px;
+    font-weight: bold;
+    border-radius: 5px;
+    border: none;
+    width: 167px;
+    height: 64px;
+  }
+
+  .button:hover {
+    cursor: pointer;
+  }
+
+  .button:disabled {
+    color: rgba(22, 48, 87, 0.2);
+    cursor: default;
+    background: transparent;
+  }
+
+  .hidden {
+    visibility: hidden;
+  }
+</style>
+
+<button
+  on:click
+  class="button"
+  class:hidden
+  class:primary
+  class:alert
+  class:warning
+  {disabled}>
+  <slot />
+</button>

packages/builder/src/common/Icons/Events.svelte

@@ -0,0 +1,9 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  viewBox="0 0 24 24"
+  width="24"
+  height="24">
+  <path fill="none" d="M0 0h24v24H0z" />
+  <path
+    d="M13 9h8L11 24v-9H4l9-15v9zm-2 2V7.22L7.532 13H13v4.394L17.263 11H11z" />
+</svg>

packages/builder/src/common/Icons/Pencil.svelte

@@ -0,0 +1,19 @@
+<svg
+  on:click
+  xmlns="http://www.w3.org/2000/svg"
+  viewBox="0 0 24 24"
+  width="24"
+  height="24">
+  <path fill="none" d="M0 0h24v24H0z" />
+  <path
+    d="M15.728 9.686l-1.414-1.414L5
+    17.586V19h1.414l9.314-9.314zm1.414-1.414l1.414-1.414-1.414-1.414-1.414 1.414
+    1.414 1.414zM7.242 21H3v-4.243L16.435 3.322a1 1 0 0 1 1.414 0l2.829 2.829a1
+    1 0 0 1 0 1.414L7.243 21z" />
+</svg>
+
+<style>
+  svg:hover {
+    cursor: pointer;
+  }
+</style>

packages/builder/src/common/Icons/index.js

@@ -4,3 +4,5 @@ export { default as TerminalIcon } from './Terminal.svelte';
 export { default as InputIcon } from './Input.svelte';
 export { default as ImageIcon } from './Image.svelte';
 export { default as ArrowDownIcon } from './ArrowDown.svelte';
+export { default as EventsIcon } from './Events.svelte';
+export { default as PencilIcon } from './Pencil.svelte';

packages/builder/src/common/Input.svelte

@@ -0,0 +1,27 @@
+<script>
+  export let value = "";
+</script>
+
+<style>
+  input {
+    display: block;
+    font-size: 14px;
+    font-family: sans-serif;
+    font-weight: 500;
+    color: #163057;
+    line-height: 1.3;
+    padding: 1em 2.6em 0.9em 1.4em;
+    width: 100%;
+    max-width: 100%;
+    box-sizing: border-box;
+    margin: 0;
+    -moz-appearance: none;
+    -webkit-appearance: none;
+    appearance: none;
+    background: #fff;
+    border: 1px solid #ccc;
+    height: 50px;
+  }
+</style>
+
+<input type="text" on:change bind:value />

packages/builder/src/common/Inputs/InputGroup.svelte

@@ -2,6 +2,7 @@
   export let meta = [];
   export let size = '';
   export let values = [];
+  export let type = "number";
   export let onStyleChanged = () => {};
 
   let _values = values.map(v => v);
@@ -11,7 +12,7 @@
 
 <div class="inputs {size}">
   {#each meta as { placeholder }, i}
-    <input type="number"
+    <input {type}
            placeholder="{placeholder}"
            value={values[i]}
            on:input={(e) => _values[i] = e.target.value} />

packages/builder/src/common/Modal.svelte

@@ -1,41 +1,44 @@
 <script>
-import UIkit from "uikit";
+  import UIkit from "uikit";
 
-export let isOpen = false;
+  export let isOpen = false;
-export let onClosed = () => {};
+  export let onClosed = () => {};
-export let id = "";
+  export let id = "";
 
-let ukModal;
+  let ukModal;
-let listenerAdded = false;
+  let listenerAdded = false;
 
-$: {
+  $: {
-    if(ukModal && !listenerAdded) {
+    if (ukModal && !listenerAdded) {
-        listenerAdded = true;
+      listenerAdded = true;
-        ukModal.addEventListener("hidden", onClosed);
+      ukModal.addEventListener("hidden", onClosed);
     }
 
-    if(ukModal) {
+    if (ukModal) {
-        if(isOpen) {
+      if (isOpen) {
-            UIkit.modal(ukModal).show();
+        UIkit.modal(ukModal).show();
-        } else {
+      } else {
-            UIkit.modal(ukModal).hide();
+        UIkit.modal(ukModal).hide();
-        }
+      }
     }
-}
+  }
-
 </script>
 
-<div bind:this={ukModal} uk-modal {id}>
-    <div class="uk-modal-dialog uk-modal-body" uk-overflow-auto>
-        <slot />
-    </div>
-</div>
-
-
 <style>
+  .uk-modal-dialog {
+    border-radius: 0.3rem;
+    width: 60%;
+    height: 80vh;
+    display: flex;
+    flex-direction: column;
+  }
+</style>
 
-.uk-modal-dialog {
+<div bind:this={ukModal} uk-modal {id}>
-    border-radius: .3rem;
+  <div class="uk-modal-dialog uk-modal-body" uk-overflow-auto>
-}
+    {#if onClosed}
-
+      <button class="uk-modal-close-default" type="button" uk-close />
-</style>
+    {/if}
+    <slot />
+  </div>
+</div>

packages/builder/src/common/PlusButton.svelte

@@ -0,0 +1,23 @@
+<style>
+  button {
+    cursor: pointer;
+    outline: none;
+    border: none;
+    border-radius: 5px;
+    background: rgba(249, 249, 249, 1);
+
+    width: 1.8rem;
+    height: 1.8rem;
+    padding-bottom: 10px;
+
+    display: flex;
+    justify-content: center;
+    align-items: center;
+
+    font-size: 1.2rem;
+    font-weight: 700;
+    color: rgba(22, 48, 87, 1);
+  }
+</style>
+
+<button on:click>+</button>

packages/builder/src/common/Select.svelte

@@ -0,0 +1,55 @@
+<script>
+  import getIcon from "./icon";
+  export let value;
+</script>
+
+<style>
+  .select-container {
+    padding-bottom: 10px;
+    font-size: 0.9rem;
+    color: var(--secondary50);
+    font-weight: bold;
+    position: relative;
+  }
+
+  select {
+    display: block;
+    font-size: 14px;
+    font-family: sans-serif;
+    font-weight: 500;
+    color: #163057;
+    line-height: 1.3;
+    padding: 1em 2.6em 0.9em 1.4em;
+    width: 100%;
+    max-width: 100%;
+    box-sizing: border-box;
+    margin: 0;
+    -moz-appearance: none;
+    -webkit-appearance: none;
+    appearance: none;
+    background: #fff;
+    border: 1px solid #ccc;
+    height: 50px;
+  }
+
+  .arrow {
+    position: absolute;
+    right: 10px;
+    top: 0;
+    bottom: 0;
+    margin: auto;
+    width: 30px;
+    height: 30px;
+    pointer-events: none;
+    color: var(--primary100);
+  }
+</style>
+
+<div class="select-container">
+  <select on:change {value}>
+    <slot />
+  </select>
+  <span class="arrow">
+    {@html getIcon('chevron-down', '24')}
+  </span>
+</div>

packages/builder/src/userInterface/ComponentPanel.svelte

@@ -2,9 +2,10 @@
     import PropsView from "./PropsView.svelte";
     import { store } from "../builderStore";
     import IconButton from "../common/IconButton.svelte";
-    import { LayoutIcon, PaintIcon, TerminalIcon } from '../common/Icons/';
+    import { LayoutIcon, PaintIcon, TerminalIcon, EventsIcon } from '../common/Icons/';
     import CodeEditor from './CodeEditor.svelte';
     import LayoutEditor from './LayoutEditor.svelte';
+    import EventsEditor from "./EventsEditor";
 
     let current_view = 'props';
 
@@ -17,6 +18,7 @@
 
     const onPropChanged = store.setComponentProp;
     const onStyleChanged = store.setComponentStyle;
+
 </script>
 
 <div class="root">
@@ -36,6 +38,11 @@
             <TerminalIcon />
           </button>
         </li>
+        <li>
+          <button class:selected={current_view === 'events'} on:click={() => current_view = 'events'}>
+            <EventsIcon />
+          </button>
+        </li>
     </ul>
 
     {#if !componentInfo.component}
@@ -45,6 +52,8 @@
             <PropsView {componentInfo} {components} {onPropChanged} />
         {:else if current_view === 'layout'}
             <LayoutEditor {onStyleChanged} {componentInfo}/>
+        {:else if current_view === 'events'}
+            <EventsEditor {componentInfo} {components} {onPropChanged} />
         {:else}
             <CodeEditor />
         {/if}

packages/builder/src/userInterface/ComponentsHierarchyChildren.svelte

@@ -1,13 +1,10 @@
 <script>
   import { last } from "lodash/fp";
   import { pipe } from "../common/core";
-
   export let components = [];
   export let currentComponent;
   export let onSelect = () => {};
   export let level = 0;
-
-
   const capitalise = s => s.substring(0,1).toUpperCase() + s.substring(1);
   const get_name = s => last(s.split('/'));
   const get_capitalised_name = name => pipe(name, [get_name,capitalise]);
@@ -38,18 +35,15 @@
     padding-left: 0;
     margin: 0;
   }
-
   .item {
     display: block;
     padding: 11px 67px;
     border-radius: 3px;
   }
-
   .item:hover {
     background: #fafafa;
     cursor: pointer;
   }
-
   .selected {
     color: var(--button-text);
     background: var(--background-button)!important;

packages/builder/src/userInterface/CurrentItemPreview.svelte

@@ -4,7 +4,11 @@
     import { pipe } from "../common/core";
     import { buildPropsHierarchy } from "./pagesParsing/buildPropsHierarchy";
 
+    let iframe;
+
+    $: iframe && console.log(iframe.contentDocument.head.insertAdjacentHTML('beforeend', '<style></style>'))
     $: hasComponent = !!$store.currentFrontEndItem;
+    $: styles = hasComponent ? $store.currentFrontEndItem._css : '';
 
     $: stylesheetLinks = pipe($store.pages.stylesheets, [
         map(s => `<link rel="stylesheet" href="${s}"/>`),
@@ -27,6 +31,7 @@
     {#if hasComponent}
     <iframe style="height: 100%; width: 100%"
             title="componentPreview"
+            bind:this={iframe}
             srcdoc={
 `<html>
 
@@ -45,6 +50,7 @@
             box-sizing: border-box;
             padding: 20px;
         }
+    ${styles}
     </style>
 </head>
 <body>

packages/builder/src/userInterface/EventListSelector.svelte

@@ -1,88 +0,0 @@
-<script>
-    import IconButton from "../common/IconButton.svelte";
-    import EventSelector from "./EventSelector.svelte";
-    import {
-        filter
-    } from "lodash/fp";
-    import {EVENT_TYPE_MEMBER_NAME} from "../common/eventHandlers";
-
-    export let parentProps;
-    export let propDef;
-    export let onValueChanged;
-
-    $:  events = parentProps[propDef.____name];
-
-    const addHandler = () => {
-        const newHandler = {parameters:{}};
-        newHandler[EVENT_TYPE_MEMBER_NAME] = "";
-        events = [...events, newHandler];
-        onValueChanged(events);
-    }
-
-    const onEventHandlerChanged = (oldEvent) => (newEvent) => {
-        const indexOfOldEvent = events.indexOf(oldEvent);
-        const newEvents = [...events];
-        newEvents.splice(
-            events.indexOf(oldEvent),
-            1,
-            newEvent);
-        events = newEvents;
-        onValueChanged(events);
-    }
-
-    const removeHandler = (index) => () => {
-        events = filter(e => e !== events[index])(events);
-        onValueChanged(events);
-    }
-
-</script>
-
-<div class="root">
-    <div class="control-container">
-        {#each events as ev, index}
-
-        <div class="handler-container">
-            <EventSelector onChanged={onEventHandlerChanged(ev)}
-                        onRemoved={removeHandler(index)}
-                        event={ev} />
-
-        </div>
-
-        <div class="separator"></div>
-        {/each}
-
-        <div class="addelement-container"
-             on:click={addHandler}>
-            <IconButton icon="plus"
-                            size="12"/>
-        </div>
-    </div>
-</div>
-
-
-<style>
-    .addelement-container {
-        cursor: pointer;
-        padding: 3px 0px;
-        text-align: center;
-    }
-
-    .addelement-container:hover {
-        background-color: var(--primary25);
-        margin-top: 5px;
-    }
-
-
-    .control-container {
-        padding-left: 3px;
-        background: var(--secondary10);
-    }
-
-    .separator {
-        width: 60%;
-        margin: 10px auto;
-        border-style:solid;
-        border-width: 1px 0 0 0;
-        border-color: var(--primary25);
-    }
-</style>

packages/builder/src/userInterface/EventSelector.svelte

@@ -1,105 +0,0 @@
-<script>
-    import IconButton from "../common/IconButton.svelte";
-    import StateBindingControl from "./StateBindingControl.svelte";
-    import {
-        find, map, keys, reduce, keyBy
-    } from "lodash/fp";
-    import { pipe, userWithFullAccess } from "../common/core";
-    import { EVENT_TYPE_MEMBER_NAME, allHandlers } from "../common/eventHandlers";
-    import { store } from "../builderStore";
-
-    export let event;
-    export let onChanged;
-    export let onRemoved;
-
-    let eventType;
-    let parameters = [];
-
-
-    $: events = allHandlers(
-        {hierarchy: $store.hierarchy},
-        userWithFullAccess({
-            hierarchy: s.hierarchy,
-            actions: keyBy("name")($store.actions)
-        })
-    );
-
-    $: if(event) {
-            eventType = event[EVENT_TYPE_MEMBER_NAME];
-            parameters = pipe(event.parameters, [
-                keys,
-                map(k => ({name:k, value:event.parameters[k]}))
-            ]);
-        } else {
-            eventType = "";
-            parameters = [];
-        }
-
-    const eventChanged = (type, parameters) => {
-        const paramsAsObject = reduce(
-            (obj, p) => {
-                obj[p.name] = p.value;
-                return obj;
-            }
-            , {}
-        )(parameters)
-
-        const ev = {};
-        ev[EVENT_TYPE_MEMBER_NAME]=type;
-        ev.parameters = paramsAsObject;
-
-        onChanged(ev);
-    }
-
-    const eventTypeChanged = (ev) => {
-        const eType = find(e => e.name === ev.target.value)(events);
-        const emptyParameters = map(p => ({name:p, value:""}))(eType.parameters);
-        eventChanged(eType.name, emptyParameters);
-    }
-
-    const onParameterChanged = index => val => {
-        const newparameters = [...parameters];
-        newparameters[index].value = val;
-        eventChanged(eventType, newparameters);
-    }
-
-</script>
-
-<div class="type-selector-container">
-    <select class="type-selector uk-select uk-form-small " value={eventType} on:change={eventTypeChanged}>
-        <option></option>
-        {#each events as ev}
-        <option value={ev.name}>{ev.name}</option>
-        {/each}
-    </select>
-
-    <IconButton icon="trash"
-                size="12"
-                on:click={onRemoved}/>
-
-</div>
-
-{#if parameters}
-    {#each parameters as p, index}
-
-        <div>
-            {p.name}
-        </div>
-        <StateBindingControl  onChanged={onParameterChanged(index)}
-                            value={p.value} />
-
-    {/each}
-{/if}
-
-<style>
-    .type-selector-container {
-        display: flex;
-    }
-
-    .type-selector {
-        border-color: var(--primary50);
-        border-radius: 2px;
-        width: 50px;
-        flex: 1 0 auto;
-    }
-</style>

packages/builder/src/userInterface/EventsEditor/EventEditorModal.svelte

@@ -0,0 +1,164 @@
+<script>
+  import Modal from "../../common/Modal.svelte";
+  import HandlerSelector from "./HandlerSelector.svelte";
+  import IconButton from "../../common/IconButton.svelte";
+  import ActionButton from "../../common/ActionButton.svelte";
+  import PlusButton from "../../common/PlusButton.svelte";
+  import Select from "../../common/Select.svelte";
+  import Input from "../../common/Input.svelte";
+  import getIcon from "../../common/icon";
+
+  import { EVENT_TYPE_MEMBER_NAME } from "../../common/eventHandlers";
+
+  export let event;
+  export let eventOptions;
+  export let open;
+  export let onClose;
+  export let onPropChanged;
+
+  let eventType = "onClick";
+  let draftEventHandler = { parameters: [] };
+
+  $: eventData = event || { handlers: [] };
+
+  const closeModal = () => {
+    onClose();
+    draftEventHandler = { parameters: [] };
+    eventData = { handlers: [] };
+  };
+
+  const updateEventHandler = (updatedHandler, index) => {
+    eventData.handlers[index] = updatedHandler;
+  };
+
+  const updateDraftEventHandler = updatedHandler => {
+    draftEventHandler = updatedHandler;
+  };
+
+  const deleteEventHandler = index => {
+    eventData.handlers.splice(index, 1);
+    eventData = eventData;
+  };
+
+  const createNewEventHandler = handler => {
+    const newHandler = handler || {
+      parameters: {},
+      [EVENT_TYPE_MEMBER_NAME]: ""
+    };
+    eventData.handlers.push(newHandler);
+    eventData = eventData;
+  };
+
+  const deleteEvent = () => {
+    onPropChanged(eventType, []);
+    closeModal();
+  };
+
+  const saveEventData = () => {
+    onPropChanged(eventType, eventData.handlers);
+    closeModal();
+  };
+</script>
+
+<style>
+  h2 {
+    color: var(--primary100);
+    font-size: 20px;
+    font-weight: bold;
+    margin-bottom: 0;
+  }
+
+  h5 {
+    color: rgba(22, 48, 87, 0.6);
+    font-size: 15px;
+    margin: 0;
+  }
+
+  .event-options {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    grid-gap: 10px;
+  }
+
+  .actions,
+  header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+  }
+
+  .actions {
+    margin-top: auto;
+  }
+
+  header {
+    margin-top: 30px;
+    margin-bottom: 10px;
+  }
+
+  a {
+    color: rgba(22, 48, 87, 0.6);
+    font-size: 12px;
+    margin-top: 0;
+  }
+</style>
+
+<Modal bind:isOpen={open} onClosed={closeModal}>
+  <h2>
+    {eventData.name ? `${eventData.name} Event` : 'Create a New Component Event'}
+  </h2>
+  <a href="https://docs.budibase.com/" target="_blank">
+    Click here to learn more about component events
+  </a>
+
+  <div class="event-options">
+    <div>
+      <header>
+        <h5>Event Type</h5>
+        {@html getIcon('info', 20)}
+      </header>
+      <Select :value={eventType}>
+        {#each eventOptions as option}
+          <option value={option.name}>{option.name}</option>
+        {/each}
+      </Select>
+    </div>
+  </div>
+
+  <header>
+    <h5>Event Action(s)</h5>
+    {@html getIcon('info', 20)}
+  </header>
+  <HandlerSelector
+    newHandler
+    onChanged={updateDraftEventHandler}
+    onCreate={() => {
+      createNewEventHandler(draftEventHandler);
+      draftEventHandler = { parameters: [] };
+    }}
+    handler={draftEventHandler} />
+  {#if eventData}
+    {#each eventData.handlers as handler, index}
+      <HandlerSelector
+        {index}
+        onChanged={updateEventHandler}
+        onRemoved={() => deleteEventHandler(index)}
+        {handler} />
+    {/each}
+  {/if}
+
+  <div class="actions">
+    <ActionButton
+      alert
+      disabled={eventData.handlers.length === 0}
+      hidden={!eventData.name}
+      on:click={deleteEvent}>
+      Delete
+    </ActionButton>
+    <ActionButton
+      disabled={eventData.handlers.length === 0}
+      on:click={saveEventData}>
+      Save
+    </ActionButton>
+  </div>
+</Modal>

packages/builder/src/userInterface/EventsEditor/EventsEditor.svelte

@@ -0,0 +1,152 @@
+<script>
+  import {
+    keys,
+    map,
+    some,
+    includes,
+    cloneDeep,
+    isEqual,
+    sortBy,
+    filter,
+    difference
+  } from "lodash/fp";
+  import { pipe } from "../../common/core";
+  import Checkbox from "../../common/Checkbox.svelte";
+  import Textbox from "../../common/Textbox.svelte";
+  import Dropdown from "../../common/Dropdown.svelte";
+  import PlusButton from "../../common/PlusButton.svelte";
+  import IconButton from "../../common/IconButton.svelte";
+  import Modal from "../../common/Modal.svelte";
+  import EventEditorModal from "./EventEditorModal.svelte";
+  import HandlerSelector from "./HandlerSelector.svelte";
+
+  import { PencilIcon } from "../../common/Icons";
+  import { EVENT_TYPE_MEMBER_NAME } from "../../common/eventHandlers";
+
+  export const EVENT_TYPE = "event";
+
+  export let componentInfo;
+  export let onPropChanged = () => {};
+  export let components;
+
+  let modalOpen = false;
+  let events = [];
+  let selectedEvent = null;
+
+  $: { 
+    events = Object.keys(componentInfo)
+    .filter(key => findType(key) === EVENT_TYPE)
+    .map(key => ({ name: key, handlers: componentInfo[key] }));
+  }
+
+  function findType(propName) {
+    if (!componentInfo._component) return;
+    return components.find(({ name }) => name === componentInfo._component)
+      .props[propName];
+  }
+
+  const openModal = event => {
+    selectedEvent = event;
+    modalOpen = true;
+  };
+
+  const closeModal = () => {
+    selectedEvent = null;
+    modalOpen = false;
+  };
+</script>
+
+<style>
+  h3 {
+    text-transform: uppercase;
+    font-size: 12px;
+    font-weight: 700;
+    color: #8997ab;
+    margin-bottom: 10px;
+  }
+
+  .root {
+    font-size: 10pt;
+    width: 100%;
+  }
+
+  .form-root {
+    display: flex;
+    flex-wrap: wrap;
+  }
+
+  header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+  }
+
+  .handler-container {
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+    border: 2px solid #f9f9f9;
+    height: 80px;
+  }
+
+  .hierarchy-item {
+    cursor: pointer;
+    padding: 11px 7px;
+    margin: 5px 0;
+    border-radius: 5px;
+    font-size: 1.5em;
+    width: 100%;
+  }
+
+  .hierarchy-item:hover {
+    background: #f9f9f9;
+  }
+
+  .event-name {
+    margin-top: 5px;
+    font-weight: bold;
+    font-size: 16px;
+    color: rgba(22, 48, 87, 0.6);
+    align-self: end;
+  }
+
+  .edit-text {
+    font-family: Arial, Helvetica, sans-serif;
+    font-weight: bold;
+    align-self: end;
+    justify-self: end;
+    font-size: 10px;
+    color: rgba(35, 65, 105, 0.4);
+  }
+
+  .selected {
+    color: var(--button-text);
+    background: var(--background-button) !important;
+  }
+</style>
+
+<header>
+  <h3>Events</h3>
+  <PlusButton on:click={() => openModal()} />
+</header>
+
+<div class="root">
+  <form class="uk-form-stacked form-root">
+    {#each events as event, index}
+      {#if event.handlers.length > 0}
+        <div
+          class="handler-container hierarchy-item {selectedEvent && selectedEvent.index === index ? 'selected' : ''}"
+          on:click={() => openModal({ ...event, index })}>
+          <span class="event-name">{event.name}</span>
+          <span class="edit-text">EDIT</span>
+        </div>
+      {/if}
+    {/each}
+  </form>
+</div>
+<EventEditorModal
+  {onPropChanged}
+  open={modalOpen}
+  onClose={closeModal}
+  eventOptions={events}
+  event={selectedEvent}
+  />

packages/builder/src/userInterface/EventsEditor/HandlerSelector.svelte

@@ -0,0 +1,148 @@
+<script>
+  import IconButton from "../../common/IconButton.svelte";
+  import PlusButton from "../../common/PlusButton.svelte";
+  import Select from "../../common/Select.svelte";
+  import StateBindingControl from "../StateBindingControl.svelte";
+  import { find, map, keys, reduce, keyBy } from "lodash/fp";
+  import { pipe, userWithFullAccess } from "../../common/core";
+  import {
+    EVENT_TYPE_MEMBER_NAME,
+    allHandlers
+  } from "../../common/eventHandlers";
+  import { store } from "../../builderStore";
+
+  export let handler;
+  export let onCreate;
+  export let onChanged;
+  export let onRemoved;
+
+  export let index;
+  export let newHandler;
+
+  let eventOptions;
+  let handlerType;
+  let parameters = [];
+
+  $: eventOptions = allHandlers(
+    { hierarchy: $store.hierarchy },
+    userWithFullAccess({
+      hierarchy: $store.hierarchy,
+      actions: keyBy("name")($store.actions)
+    })
+  );
+
+  $: {
+    if (handler) {
+      handlerType = handler[EVENT_TYPE_MEMBER_NAME];
+      parameters = Object.entries(handler.parameters).map(([name, value]) => ({
+        name,
+        value
+      }));
+    } else {
+      // Empty Handler 
+      handlerType = "";
+      parameters = [];
+    }
+  }
+
+  const handlerChanged = (type, params) => {
+    const handlerParams = {};
+    for (let param of params) {
+      handlerParams[param.name] = param.value;
+    }
+
+    const updatedHandler = {
+      [EVENT_TYPE_MEMBER_NAME]: type,
+      parameters: handlerParams
+    };
+
+    onChanged(updatedHandler, index);
+  };
+
+  const handlerTypeChanged = e => {
+    const handlerType = eventOptions.find(
+      handler => handler.name === e.target.value
+    );
+    const defaultParams = handlerType.parameters.map(param => ({
+      name: param,
+      value: ""
+    }));
+
+    handlerChanged(handlerType.name, defaultParams);
+  };
+
+  const onParameterChanged = index => value => {
+    const newParams = [...parameters];
+    newParams[index].value = value;
+    handlerChanged(handlerType, newParams);
+  };
+</script>
+
+<style>
+  .type-selector-container {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    background: rgba(223, 223, 223, 0.5);
+    border: 1px solid #dfdfdf;
+    margin-bottom: 18px;
+  }
+
+  .handler-option {
+    display: flex;
+    flex-direction: column;
+  }
+
+  .new-handler {
+    background: #fff;
+  }
+
+  .handler-controls {
+    display: grid;
+    grid-template-columns: repeat(3, 1fr);
+    grid-gap: 10px;
+    padding: 22px;
+  }
+
+  .event-action-button {
+    margin-right: 20px;
+  }
+
+  span {
+    font-size: 12px;
+    margin-bottom: 5px;
+  }
+</style>
+
+<div class="type-selector-container {newHandler && 'new-handler'}">
+  <div class="handler-controls">
+    <div class="handler-option">
+      <span>Action</span>
+      <Select value={handlerType} on:change={handlerTypeChanged}>
+        <option />
+        {#each eventOptions as option}
+          <option value={option.name}>{option.name}</option>
+        {/each}
+      </Select>
+    </div>
+    {#if parameters}
+      {#each parameters as param, idx}
+        <div class="handler-option">
+          <span>{param.name}</span>
+          <StateBindingControl
+            onChanged={onParameterChanged(idx)}
+            value={param.value} />
+        </div>
+      {/each}
+    {/if}
+  </div>
+  <div class="event-action-button">
+    {#if parameters.length > 0}
+      {#if newHandler}
+        <PlusButton on:click={onCreate} />
+      {:else}
+        <IconButton icon="x" on:click={onRemoved} />
+      {/if}
+    {/if}
+  </div>
+</div>

packages/builder/src/userInterface/EventsEditor/index.js

@@ -0,0 +1 @@
+export { default } from "./EventsEditor.svelte";

packages/builder/src/userInterface/LayoutEditor.svelte

@@ -19,13 +19,16 @@
   const single = [{ placeholder: '' }];
 
 
-  $: layout  = componentInfo._layout;
+  $: layout  = { ...componentInfo._styles.position, ...componentInfo._styles.layout };
+
+  $: layouts = {
+    templaterows: ['Grid Rows', single],
+    templatecolumns: ['Grid Columns', single],
+  };
 
   $: positions = {
-    gridarea: ['Grid Area', tbrl, 'small'],
     column: ['Column', se],
     row: ['Row', se],
-    gap: ['Gap', single],
   };
 
   $: spacing = {
@@ -41,15 +44,28 @@
 </script>
 
 
-<h3>Layout</h3>
+<h3>Styles</h3>
 
 <h4>Positioning</h4>
+<div class="layout-pos">
+ {#each Object.entries(layouts) as [key, [name, meta, size]]}
+    <div class="grid">
+      <h5>{name}:</h5>
+      <InputGroup onStyleChanged={_value => onStyleChanged('layout',key, _value)}
+                  values={layout[key] || newValue(meta.length)}
+                  {meta}
+                  {size}
+                  type="text"/>
+    </div>
+  {/each}
+</div>
 
+<h4>Positioning</h4>
 <div class="layout-pos">
  {#each Object.entries(positions) as [key, [name, meta, size]]}
     <div class="grid">
-      <h5>Grid Area:</h5>
+      <h5>{name}:</h5>
-      <InputGroup onStyleChanged={_value => onStyleChanged(key, _value)}
+      <InputGroup onStyleChanged={_value => onStyleChanged('position',key, _value)}
                   values={layout[key] || newValue(meta.length)}
                   {meta}
                   {size} />
@@ -61,8 +77,8 @@
 <div class="layout-spacing">
   {#each Object.entries(spacing) as [key, [name, meta, size]]}
     <div class="grid">
-      <h5>Grid Area:</h5>
+      <h5>{name}:</h5>
-      <InputGroup onStyleChanged={_value => onStyleChanged(key, _value)}
+      <InputGroup onStyleChanged={_value => onStyleChanged('position', key, _value)}
                   values={layout[key] || newValue(meta.length)}
                   {meta}
                   {size} />
@@ -74,8 +90,8 @@
 <div class="layout-layer">
   {#each Object.entries(zindex) as [key, [name, meta, size]]}
     <div class="grid">
-      <h5>Grid Area:</h5>
+      <h5>{name}:</h5>
-      <InputGroup onStyleChanged={_value => onStyleChanged(key, _value)}
+      <InputGroup onStyleChanged={_value => onStyleChanged('position', key, _value)}
                   values={layout[key] || newValue(meta.length)}
                   {meta}
                   {size} />

packages/builder/src/userInterface/PropsView.svelte

@@ -12,7 +12,7 @@
     let errors = [];
     let props = {};
 
-    const props_to_ignore = ['_component','_children', '_layout'];
+    const props_to_ignore = ['_component','_children', '_styles', '_id'];
 
     $: propDefs = componentInfo && Object.entries(componentInfo).filter(([name])=> !props_to_ignore.includes(name));
 

packages/builder/src/userInterface/StateBindingControl.svelte

@@ -1,5 +1,6 @@
 <script>
     import IconButton from "../common/IconButton.svelte";
+    import Input from "../common/Input.svelte";
     import {
         isBinding, getBinding, setBinding
     } from "../common/binding";
@@ -119,9 +120,9 @@
                 {/each}
             </select>
         {:else}
-            <input on:change={ev => onChanged(ev.target.value)}
+            <Input 
-                bind:value={value}
+                on:change={ev => onChanged(ev.target.value)}
-                style="flex: 1 0 auto;" />
+                bind:value={value} />
         {/if}
 
     </div>

packages/builder/tests/generate_css.spec.js

@@ -0,0 +1,337 @@
+import { generate_css, make_margin, generate_screen_css } from '../src/builderStore/generate_css.js';
+
+describe('make_margin', () => {
+	test('it should generate a valid rule', () => {
+		expect(make_margin(["1", "1", "1", "1"])).toEqual('1px 1px 1px 1px')
+	})
+
+	test('empty values should output 0', () => {
+		expect(make_margin(["1", "1", "", ""])).toEqual('1px 1px 0px 0px')
+		expect(make_margin(["1", "", "", "1"])).toEqual('1px 0px 0px 1px')
+		expect(make_margin(["", "", "", ""])).toEqual('0px 0px 0px 0px')
+	})
+})
+
+describe('generate_css', () => {
+	test('it should generate a valid css rule: grid-area', () => {
+		expect(
+			generate_css({ layout: { gridarea: ["", "", "", ""] } })
+		).toEqual({
+			layout: '',
+			position: ''
+		});
+	})
+
+	test('it should generate a valid css rule: grid-gap', () => {
+		expect(
+			generate_css({ layout: { gap: "10" } })
+		).toEqual({
+			layout: 'grid-gap: 10px;\ndisplay: grid;',
+			position: ''
+		});
+	})
+
+	test('it should generate a valid css rule: column 1', () => {
+		expect(
+			generate_css({ position: { column: ["", ""] } }
+			)).toEqual({ layout: '', position: '' });
+	})
+
+	test('it should generate a valid css rule: column 2', () => {
+		expect(
+			generate_css({ position: { column: ["1", ""] } })
+		).toEqual({
+			position: 'grid-column-start: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: column 3', () => {
+		expect(
+			generate_css({ position: { column: ["", "1"] } })
+		).toEqual({
+			position: 'grid-column-end: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: column 4', () => {
+		expect(
+			generate_css({ position: { column: ["1", "1"] } })
+		).toEqual({
+			position: 'grid-column-start: 1;\ngrid-column-end: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: row 1', () => {
+		expect(
+			generate_css({ position: { row: ["", ""] } })
+		).toEqual({ layout: '', position: '' });
+	})
+
+	test('it should generate a valid css rule: row 2', () => {
+		expect(
+			generate_css({ position: { row: ["1", ""] } })
+		).toEqual({
+			position: 'grid-row-start: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: row 3', () => {
+		expect(
+			generate_css({ position: { row: ["", "1"] } })
+		).toEqual({
+			position: 'grid-row-end: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: row 4', () => {
+		expect(
+			generate_css({ position: { row: ["1", "1"] } })
+		).toEqual({
+			position: 'grid-row-start: 1;\ngrid-row-end: 1;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: padding 1', () => {
+		expect(
+			generate_css({ position: { padding: ["1", "1", "1", "1"] } })
+		).toEqual({
+			position: 'padding: 1px 1px 1px 1px;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: padding 2', () => {
+		expect(
+			generate_css({ position: { padding: ["1", "", "", "1"] } })
+		).toEqual({
+			position: 'padding: 1px 0px 0px 1px;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: margin 1', () => {
+		expect(
+			generate_css({ position: { margin: ["1", "1", "1", "1"] } })
+		).toEqual({
+			position: 'margin: 1px 1px 1px 1px;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: margin 2', () => {
+		expect(
+			generate_css({ position: { margin: ["1", "", "", "1"] } })
+		).toEqual({
+			position: 'margin: 1px 0px 0px 1px;',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: z-index 1', () => {
+		expect(
+			generate_css({ position: { zindex: "" } })
+		).toEqual({
+			position: '',
+			layout: ''
+		});
+	})
+
+	test('it should generate a valid css rule: z-index 2', () => {
+		expect(
+			generate_css({ position: { zindex: "1" } })
+		).toEqual({
+			position: 'z-index: 1;',
+			layout: ''
+		});
+	})
+
+})
+
+describe('generate_screen_css', () => {
+	test('it should compile the css for a list of components', () => {
+		const components = [
+			{
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 1
+			},
+			{
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 2
+			}, {
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 3
+			}
+			, {
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 4
+			}
+		]
+
+		const compiled = `.pos-1 {
+margin: 1px 1px 1px 1px;
+}
+.lay-1 {
+
+}
+.pos-2 {
+margin: 1px 1px 1px 1px;
+}
+.lay-2 {
+
+}
+.pos-3 {
+margin: 1px 1px 1px 1px;
+}
+.lay-3 {
+
+}
+.pos-4 {
+margin: 1px 1px 1px 1px;
+}
+.lay-4 {
+
+}`
+
+		expect(generate_screen_css(components)).toEqual(compiled)
+	})
+
+	test('it should compile the css for a list of components', () => {
+		const components = [
+			{
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 1,
+				_children: [
+					{
+						_styles: {
+							layout: { gridarea: ["", "", "", ""] },
+							position: { margin: ["1", "1", "1", "1"] }
+						},
+						_id: 2,
+						_children: [
+							{
+								_styles: {
+									layout: { gridarea: ["", "", "", ""] },
+									position: { margin: ["1", "1", "1", "1"] }
+								},
+								_id: 3,
+								_children: [
+									{
+										_styles: {
+											layout: { gridarea: ["", "", "", ""] },
+											position: { margin: ["1", "1", "1", "1"] }
+										},
+										_id: 4,
+										_children: [
+											{
+												_styles: {
+													layout: { gridarea: ["", "", "", ""] },
+													position: { margin: ["1", "1", "1", "1"] }
+												},
+												_id: 5,
+												_children: [
+
+												]
+											},
+										]
+									},
+								]
+							},
+						]
+					},
+				]
+			},
+			{
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 6
+			}, {
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 7
+			}
+			, {
+				_styles: {
+					layout: { gridarea: ["", "", "", ""] },
+					position: { margin: ["1", "1", "1", "1"] }
+				},
+				_id: 8
+			}
+		]
+
+		const compiled = `.pos-1 {
+margin: 1px 1px 1px 1px;
+}
+.lay-1 {
+
+}
+.pos-2 {
+margin: 1px 1px 1px 1px;
+}
+.lay-2 {
+
+}
+.pos-3 {
+margin: 1px 1px 1px 1px;
+}
+.lay-3 {
+
+}
+.pos-4 {
+margin: 1px 1px 1px 1px;
+}
+.lay-4 {
+
+}
+.pos-5 {
+margin: 1px 1px 1px 1px;
+}
+.lay-5 {
+
+}
+.pos-6 {
+margin: 1px 1px 1px 1px;
+}
+.lay-6 {
+
+}
+.pos-7 {
+margin: 1px 1px 1px 1px;
+}
+.lay-7 {
+
+}
+.pos-8 {
+margin: 1px 1px 1px 1px;
+}
+.lay-8 {
+
+}`
+
+		expect(generate_screen_css(components)).toEqual(compiled)
+	})
+})

packages/client/src/render/initialiseChildren.js

@@ -27,6 +27,8 @@ export const _initialiseChildren = (initialiseOpts) =>
             htmlElement.removeChild(htmlElement.firstChild);
         }
     }
+    
+    htmlElement.classList.add(`lay-${treeNode.props._id}`)
 
     const renderedComponents = [];
     for(let childProps of childrenProps) {       

packages/client/src/render/renderComponent.js

@@ -23,6 +23,7 @@ export const renderComponent = ({
         const thisNode = createTreeNode();
         thisNode.context = componentContext;
         thisNode.parentNode = parentNode;
+        thisNode.props = props;
 
         parentNode.children.push(thisNode);
         renderedNodes.push(thisNode);
@@ -38,6 +39,10 @@ export const renderComponent = ({
 
         thisNode.rootElement = htmlElement.children[
             htmlElement.children.length - 1];
+        
+        if (initialProps._id) {
+            thisNode.rootElement.classList.add(`pos-${initialProps._id}`)
+        }
     }
 
     if(func) {
@@ -51,6 +56,7 @@ export const renderComponent = ({
 
 export const createTreeNode = () => ({
     context: {},
+    props: {},
     rootElement: null,
     parentNode: null,
     children: [],

packages/core/.eslintrc.json

@@ -1,12 +0,0 @@
-{
-    "env": {
-        "browser": true,
-        "es6": true,
-        "jest": true
-    },
-    "extends": "eslint:recommended",
-    "parser": "babel-eslint",
-    "parserOptions": {
-        "sourceType": "module"
-    }
-}

packages/core/package.json

@@ -51,15 +51,9 @@
     "@babel/plugin-transform-runtime": "^7.4.4",
     "@babel/preset-env": "^7.4.5",
     "@babel/runtime": "^7.4.5",
-    "babel-eslint": "^10.0.2",
     "babel-jest": "^23.6.0",
     "babel-plugin-transform-es2015-modules-commonjs": "^6.26.2",
     "cross-env": "^5.1.4",
-    "eslint": "^5.3.0",
-    "eslint-config-airbnb": "^17.1.0",
-    "eslint-plugin-import": "^2.14.0",
-    "eslint-plugin-jsx-a11y": "^6.1.1",
-    "eslint-plugin-react": "^7.11.0",
     "jest": "^24.8.0",
     "readable-stream": "^3.1.1",
     "regenerator-runtime": "^0.11.1",

packages/server/app.js

@@ -14,7 +14,7 @@ module.exports = async (budibaseContext) => {
         app.context.master,
         config.latestPackagesFolder
     );
-    app.use(koaBody({ multipart : true }));
+    app.use(koaBody({ multipart: true }));
     app.use(router(config, app).routes());
     return app.listen(config.port);
 };