n8n/packages/editor-ui/src/components/VariableSelectorItem.vue

<template>
	<div class="item">
		<div v-if="item.options" class="options">
			<div v-if="item.options.length" class="headline clickable" @click="extended=!extended">
				<div class="options-toggle" v-if="extendAll !== true">
					<font-awesome-icon v-if="extended" icon="angle-down" />
					<font-awesome-icon v-else icon="angle-right" />
				</div>
				<div class="option-title" :title="item.key">
					{{item.name}}

					<el-dropdown trigger="click" @click.stop @command="optionSelected($event, item)" v-if="allowParentSelect === true">
						<span class="el-dropdown-link clickable" @click.stop>
							<font-awesome-icon icon="dot-circle" :title="$locale.baseText('variableSelectorItem.selectItem')" />
						</span>
						<template #dropdown>
							<el-dropdown-menu>
								<el-dropdown-item :command="operation.command" v-for="operation in itemAddOperations" :key="operation.command">{{operation.displayName}}</el-dropdown-item>
							</el-dropdown-menu>
						</template>
					</el-dropdown>

				</div>
			</div>
			<div v-if="item.options && (extended === true || extendAll === true)">
				<variable-selector-item v-for="option in item.options" :item="option" :key="option.key" :extendAll="extendAll" :allowParentSelect="option.allowParentSelect" class="sub-level" @itemSelected="forwardItemSelected"></variable-selector-item>
			</div>
		</div>
		<div v-else class="value clickable" @click="selectItem(item)">
			<div class="item-title ph-no-capture" :title="item.key">
				{{item.name}}:
				<font-awesome-icon icon="dot-circle" title="Select Item" />
			</div>
			<div class="item-value">{{ item.value !== undefined?item.value: $locale.baseText('variableSelectorItem.empty') }}</div>
		</div>
	</div>
</template>

<script lang="ts">

import Vue from 'vue';
import {
	IVariableSelectorOption,
	IVariableItemSelected,
} from '@/Interface';
import { externalHooks } from "@/mixins/externalHooks";
import mixins from 'vue-typed-mixins';

export default mixins(externalHooks).extend({
	name: 'VariableSelectorItem',
	props: [
		'allowParentSelect',
		'extendAll',
		'item',
	],
	mounted() {
		if (this.extended) return;

		const shouldAutoExtend = [
			this.$locale.baseText('variableSelectorItem.currentNode'),
			this.$locale.baseText('variableSelectorItem.inputData'),
			this.$locale.baseText('variableSelectorItem.binary'),
			this.$locale.baseText('variableSelectorItem.json'),
		].includes(this.item.name) && this.item.key === undefined;

		if (shouldAutoExtend) {
			this.extended = true;
		}
	},
	computed: {
		itemAddOperations () {
			const returnOptions = [
				{
					command: 'raw',
					displayName: 'Raw value',
				},
			];
			if (this.item.dataType === 'array') {
				returnOptions.push({
					command: 'arrayLength',
					displayName: 'Length',
				});
				returnOptions.push({
					command: 'arrayValues',
					displayName: 'Values',
				});
			} else if (this.item.dataType === 'object') {
				returnOptions.push({
					command: 'objectKeys',
					displayName: 'Keys',
				});
				returnOptions.push({
					command: 'objectValues',
					displayName: 'Values',
				});
			}

			return returnOptions;
		},
	},
	data () {
		return {
			extended: false,
		};
	},
	methods: {
		optionSelected (command: string, item: IVariableSelectorOption) {
			// By default it is raw
			let variable = item.key;
			if (command === 'arrayValues') {
				variable = `${item.key}.join(', ')`;
			} else if (command === 'arrayLength') {
				variable = `${item.key}.length`;
			} else if (command === 'objectKeys') {
				variable = `Object.keys(${item.key}).join(', ')`;
			} else if (command === 'objectValues') {
				variable = `Object.values(${item.key}).join(', ')`;
			}
			this.$emit('itemSelected', { variable });
		},
		selectItem (item: IVariableSelectorOption) {
			this.$emit('itemSelected', { variable: item.key });
		},
		forwardItemSelected (eventData: IVariableItemSelected) {
			this.$emit('itemSelected', eventData);
		},
	},
});
</script>

<style scoped lang="scss">

.option-title {
	position: relative;
	display: inline-block;
	font-size: 0.9em;
	font-weight: 600;
	padding: 0.2em 1em 0.2em 0.4em;
}
.item-title {
	font-weight: 600;
	font-size: 0.8em;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.headline {
	position: relative;
	margin: 2px;
	margin-top: 10px;
	color: $color-primary;
}
.options-toggle {
	position: relative;
	top: 1px;
	margin: 0 3px 0 8px;
	display: inline;
}
.value {
	margin: 0.2em;
	padding: 0.1em 0.3em;
}
.item-value {
	font-size: 0.6em;
	overflow-x: auto;
}
.sub-level {
	padding-left: 20px;
}

</style>