[Client] Fix #3213

src/client/app/common/views/components/follow-button.vue

@@ -0,0 +1,184 @@
+<template>
+<button class="wfliddvnhxvyusikowhxozkyxyenqxqr"
+	:class="{ wait, block, mini, active: isFollowing || hasPendingFollowRequestFromYou }"
+	@click="onClick"
+	:disabled="wait"
+>
+	<template v-if="!wait">
+		<fa :icon="iconAndText[0]"/> <template v-if="!mini">{{ iconAndText[1] }}</template>
+	</template>
+	<template v-else><fa icon="spinner" pulse fixed-width/></template>
+</button>
+</template>
+
+<script lang="ts">
+import Vue from 'vue';
+import i18n from '../../../i18n';
+
+export default Vue.extend({
+	i18n: i18n('common/views/components/follow-button.vue'),
+
+	props: {
+		user: {
+			type: Object,
+			required: true
+		},
+		block: {
+			type: Boolean,
+			required: false,
+			default: false
+		},
+		mini: {
+			type: Boolean,
+			required: false,
+			default: false
+		}
+	},
+
+	data() {
+		return {
+			isFollowing: this.user.isFollowing,
+			hasPendingFollowRequestFromYou: this.user.hasPendingFollowRequestFromYou,
+			wait: false,
+			connection: null
+		};
+	},
+
+	computed: {
+		iconAndText(): any[] {
+			return (
+				(this.hasPendingFollowRequestFromYou && this.user.isLocked) ? ['hourglass-half', this.$t('request-pending')] :
+				(this.hasPendingFollowRequestFromYou && !this.user.isLocked) ? ['hourglass-start', this.$t('follow-processing')] :
+				(this.isFollowing) ? ['minus', this.$t('following')] :
+				(!this.isFollowing && this.user.isLocked) ? ['plus', this.$t('follow-request')] :
+				(!this.isFollowing && !this.user.isLocked) ? ['plus', this.$t('follow')] :
+				[]
+			);
+		}
+	},
+
+	mounted() {
+		this.connection = this.$root.stream.useSharedConnection('main');
+
+		this.connection.on('follow', this.onFollowChange);
+		this.connection.on('unfollow', this.onFollowChange);
+	},
+
+	beforeDestroy() {
+		this.connection.dispose();
+	},
+
+	methods: {
+		onFollowChange(user) {
+			if (user.id == this.user.id) {
+				this.isFollowing = user.isFollowing;
+				this.hasPendingFollowRequestFromYou = user.hasPendingFollowRequestFromYou;
+			}
+		},
+
+		async onClick() {
+			this.wait = true;
+
+			try {
+				if (this.isFollowing) {
+					await this.$root.api('following/delete', {
+						userId: this.user.id
+					});
+				} else {
+					if (this.hasPendingFollowRequestFromYou) {
+						await this.$root.api('following/requests/cancel', {
+							userId: this.user.id
+						});
+					} else if (this.user.isLocked) {
+						await this.$root.api('following/create', {
+							userId: this.user.id
+						});
+						this.hasPendingFollowRequestFromYou = true;
+					} else {
+						await this.$root.api('following/create', {
+							userId: this.user.id
+						});
+						this.hasPendingFollowRequestFromYou = true;
+					}
+				}
+			} catch (e) {
+				console.error(e);
+			} finally {
+				this.wait = false;
+			}
+		}
+	}
+});
+</script>
+
+<style lang="stylus" scoped>
+.wfliddvnhxvyusikowhxozkyxyenqxqr
+	display block
+	user-select none
+	cursor pointer
+	padding 0 16px
+	margin 0
+	min-width 100px
+	line-height 36px
+	font-size 14px
+	font-weight bold
+	color var(--primary)
+	background transparent
+	outline none
+	border solid 1px var(--primary)
+	border-radius 36px
+
+	&.mini
+		padding 0
+		min-width 0
+		width 32px
+		height 32px
+		font-size 16px
+		border-radius 4px
+		line-height 32px
+
+		&:focus
+			&:after
+				border-radius 8px
+
+	&.block
+		width 100%
+
+	&:focus
+		&:after
+			content ""
+			pointer-events none
+			position absolute
+			top -5px
+			right -5px
+			bottom -5px
+			left -5px
+			border 2px solid var(--primaryAlpha03)
+			border-radius 36px
+
+	&:hover
+		background var(--primaryAlpha01)
+
+	&:active
+		background var(--primaryAlpha02)
+
+	&.active
+		color var(--primaryForeground)
+		background var(--primary)
+
+		&:hover
+			background var(--primaryLighten10)
+			border-color var(--primaryLighten10)
+
+		&:active
+			background var(--primaryDarken10)
+			border-color var(--primaryDarken10)
+
+	&.wait
+		cursor wait !important
+		opacity 0.7
+
+	*
+		pointer-events none
+
+</style>