Populate tool shelf and tool options bar (#66)

client/web/src/components/widgets/DropdownButton.vue

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+<template>
+	<button class="dropdown-button">
+		<component :is="icon" />
+	</button>
+</template>
+
+<style lang="scss">
+.dropdown-button {
+	width: 16px;
+	height: 24px;
+	margin: 2px 4px;
+	padding: 0;
+	outline: none;
+	border: none;
+	border-radius: 2px;
+	background: #111;
+	fill: #ddd;
+
+	&:hover {
+		background: #555;
+		fill: #fff;
+	}
+}
+</style>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+import DropdownArrow from "../../../assets/svg/16x24-bounds-8x16-icon/dropdown-arrow.svg";
+import VerticalEllipsis from "../../../assets/svg/16x24-bounds-8x16-icon/vertical-ellipsis.svg";
+
+export enum DropdownButtonIcon {
+	"DropdownArrow" = "DropdownArrow",
+	"VerticalEllipsis" = "VerticalEllipsis",
+}
+
+export default defineComponent({
+	components: {
+		VerticalEllipsis,
+		DropdownArrow,
+	},
+	props: {
+		icon: { type: String, default: DropdownButtonIcon.DropdownArrow },
+	},
+});
+</script>

client/web/src/components/widgets/IconButton.vue

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+<template>
+	<button class="icon-button" :class="[`size-${String(size)}`, gapAfter && 'gap-after']">
+		<slot></slot>
+	</button>
+</template>
+
+<style lang="scss">
+.icon-button {
+	display: inline-block;
+	flex: 0 0 auto;
+	outline: none;
+	border: none;
+	padding: 0;
+	width: 16px;
+	height: 16px;
+	background: none;
+	font-weight: bold;
+	font-size: 10px;
+	border-radius: 2px;
+	color: #ddd;
+	fill: #ddd;
+
+	&:not(.gap-after) + .icon-button {
+		margin-left: 0;
+	}
+
+	&:hover {
+		background: #555;
+		color: white;
+		fill: white;
+	}
+
+	&.size-10 {
+		width: 10px;
+		height: 10px;
+	}
+
+	&.size-12 {
+		width: 12px;
+		height: 12px;
+	}
+
+	&.size-16 {
+		width: 16px;
+		height: 16px;
+	}
+
+	&.size-24 {
+		width: 24px;
+		height: 24px;
+	}
+}
+</style>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+
+export default defineComponent({
+	props: {
+		size: { type: Number, required: true },
+		gapAfter: { type: Boolean, default: false },
+	},
+});
+</script>

client/web/src/components/widgets/ItemDivider.vue

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+<template>
+	<div class="item-spacer" :class="{ horizontal: horizontal }">
+		<div></div>
+	</div>
+</template>
+
+<style lang="scss">
+.item-spacer {
+	margin-left: 0;
+
+	& + * {
+		margin-left: 0;
+	}
+
+	&:not(.horizontal) {
+		height: 100%;
+		padding: 0 8px;
+
+		div {
+			height: calc(100% - 8px);
+			width: 1px;
+			margin: 4px 0;
+			background: #888;
+		}
+	}
+
+	&.horizontal {
+		width: 100%;
+		padding: 8px 0;
+
+		div {
+			height: 1px;
+			width: calc(100% - 8px);
+			margin: 0 4px;
+			background: #888;
+		}
+	}
+}
+</style>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+
+export default defineComponent({
+	components: {
+	},
+	props: {
+		horizontal: { type: Boolean, default: false },
+	},
+});
+</script>

client/web/src/components/widgets/ShelfItem.vue

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+<template>
+	<div class="shelf-item" :class="{ active: active }">
+		<slot></slot>
+	</div>
+</template>
+
+<style lang="scss">
+.shelf-item {
+	padding: 4px;
+	border-radius: 4px;
+
+	&:hover {
+		background: #555;
+	}
+
+	&.active {
+		background: #428bbb;
+	}
+
+	svg {
+		width: 24px;
+		height: 24px;
+	}
+}
+</style>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+
+export default defineComponent({
+	props: {
+		active: { type: Boolean, default: false },
+	},
+});
+</script>