diff --git a/src/client/components/deck/column.vue b/src/client/components/deck/column.vue
index 9a744e2d6b..5c131e49ec 100644
--- a/src/client/components/deck/column.vue
+++ b/src/client/components/deck/column.vue
@@ -207,7 +207,7 @@ export default defineComponent({
 		},
 
 		showMenu() {
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: this.getMenu(),
 				source: this.$refs.menu,
 			});
diff --git a/src/client/components/drive.file.vue b/src/client/components/drive.file.vue
index bbe7310064..86e0035b27 100644
--- a/src/client/components/drive.file.vue
+++ b/src/client/components/drive.file.vue
@@ -82,7 +82,7 @@ export default defineComponent({
 			if (this.selectMode) {
 				this.$emit('chosen', this.file);
 			} else {
-				this.$root.menu({
+				this.$store.dispatch('showMenu', {
 					items: [{
 						text: this.$t('rename'),
 						icon: faICursor,
diff --git a/src/client/components/menu.vue b/src/client/components/menu.vue
index b68f50190a..b0c4618d29 100644
--- a/src/client/components/menu.vue
+++ b/src/client/components/menu.vue
@@ -1,6 +1,6 @@
 <template>
-<x-popup :source="source" :no-center="noCenter" :fixed="fixed" :width="width" ref="popup" @closed="() => { $emit('closed'); destroyDom(); }" v-hotkey.global="keymap">
-	<div class="rrevdjwt" :class="{ left: align === 'left' }" ref="items">
+<x-modal :source="source" :no-center="noCenter" ref="popup" @click="" @closed="$store.commit('removeMenu', id)" :showing="showing">
+	<div class="rrevdjwt" :class="{ left: align === 'left' }" ref="items" :style="{ width: width + 'px' }">
 		<template v-for="(item, i) in items.filter(item => item !== undefined)">
 			<div v-if="item === null" class="divider" :key="i"></div>
 			<span v-else-if="item.type === 'label'" class="label item" :key="i">
@@ -29,18 +29,18 @@
 			</button>
 		</template>
 	</div>
-</x-popup>
+</x-modal>
 </template>
 
 <script lang="ts">
 import { defineComponent } from 'vue';
 import { faCircle } from '@fortawesome/free-solid-svg-icons';
-import XPopup from './popup.vue';
+import XModal from './modal.vue';
 import { focusPrev, focusNext } from '../scripts/focus';
 
 export default defineComponent({
 	components: {
-		XPopup
+		XModal
 	},
 	props: {
 		source: {
@@ -58,10 +58,6 @@ export default defineComponent({
 			type: Boolean,
 			required: false
 		},
-		fixed: {
-			type: Boolean,
-			required: false
-		},
 		width: {
 			type: Number,
 			required: false
diff --git a/src/client/components/modal.vue b/src/client/components/modal.vue
index 746bbe16f6..87001c173b 100644
--- a/src/client/components/modal.vue
+++ b/src/client/components/modal.vue
@@ -14,6 +14,8 @@
 <script lang="ts">
 import { defineComponent } from 'vue';
 
+// memo: popup.vueのfixedプロパティに相当するものはsource要素の祖先を辿るなどして自動で判定できるのでは
+
 export default defineComponent({
 	emits: ['click', 'esc', 'closed'],
 	props: {
@@ -26,6 +28,9 @@ export default defineComponent({
 			required: false,
 			default: true,
 		},
+		sourceEl: {
+			required: false,
+		}
 	},
 	computed: {
 		keymap(): any {
@@ -34,6 +39,64 @@ export default defineComponent({
 			};
 		},
 	},
+	mounted() {
+		this.$nextTick(() => {
+			const popover = this.$refs.content as any;
+
+			const rect = this.source.getBoundingClientRect();
+			const width = popover.offsetWidth;
+			const height = popover.offsetHeight;
+
+			let left;
+			let top;
+
+			if (this.$root.isMobile && !this.noCenter) {
+				const x = rect.left + (this.fixed ? 0 : window.pageXOffset) + (this.source.offsetWidth / 2);
+				const y = rect.top + (this.fixed ? 0 : window.pageYOffset) + (this.source.offsetHeight / 2);
+				left = (x - (width / 2));
+				top = (y - (height / 2));
+				popover.style.transformOrigin = 'center';
+			} else {
+				const x = rect.left + (this.fixed ? 0 : window.pageXOffset) + (this.source.offsetWidth / 2);
+				const y = rect.top + (this.fixed ? 0 : window.pageYOffset) + this.source.offsetHeight;
+				left = (x - (width / 2));
+				top = y;
+			}
+
+			if (this.fixed) {
+				if (left + width > window.innerWidth) {
+					left = window.innerWidth - width;
+					popover.style.transformOrigin = 'center';
+				}
+
+				if (top + height > window.innerHeight) {
+					top = window.innerHeight - height;
+					popover.style.transformOrigin = 'center';
+				}
+			} else {
+				if (left + width - window.pageXOffset > window.innerWidth) {
+					left = window.innerWidth - width + window.pageXOffset;
+					popover.style.transformOrigin = 'center';
+				}
+
+				if (top + height - window.pageYOffset > window.innerHeight) {
+					top = window.innerHeight - height + window.pageYOffset;
+					popover.style.transformOrigin = 'center';
+				}
+			}
+
+			if (top < 0) {
+				top = 0;
+			}
+
+			if (left < 0) {
+				left = 0;
+			}
+
+			popover.style.left = left + 'px';
+			popover.style.top = top + 'px';
+		});
+	},
 });
 </script>
 
diff --git a/src/client/components/note.vue b/src/client/components/note.vue
index 05ef5d6f9b..e2a2dc2eb1 100644
--- a/src/client/components/note.vue
+++ b/src/client/components/note.vue
@@ -452,7 +452,7 @@ export default defineComponent({
 		renote(viaKeyboard = false) {
 			pleaseLogin(this.$root);
 			this.blur();
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('renote'),
 					icon: faRetweet,
@@ -685,7 +685,7 @@ export default defineComponent({
 				}))]);
 			}
 
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: menu,
 				source: this.$refs.menuButton,
 				viaKeyboard
@@ -694,7 +694,7 @@ export default defineComponent({
 
 		showRenoteMenu(viaKeyboard = false) {
 			if (!this.isMyRenote) return;
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('unrenote'),
 					icon: faTrashAlt,
diff --git a/src/client/components/popup.vue b/src/client/components/popup.vue
index 825f9987cd..505f24aea9 100644
--- a/src/client/components/popup.vue
+++ b/src/client/components/popup.vue
@@ -1,3 +1,5 @@
+// popupはmodalと統合
+
 <template>
 <div class="mk-popup" v-hotkey.global="keymap">
 	<transition :name="$store.state.device.animation ? 'bg-fade' : ''" appear>
diff --git a/src/client/components/post-form-attaches.vue b/src/client/components/post-form-attaches.vue
index dd37ca2097..2afe021ad8 100644
--- a/src/client/components/post-form-attaches.vue
+++ b/src/client/components/post-form-attaches.vue
@@ -80,7 +80,7 @@ export default defineComponent({
 		},
 		showFileMenu(file, ev: MouseEvent) {
 			if (this.menu) return;
-			this.menu = this.$root.menu({
+			this.menu = this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('renameFile'),
 					icon: faICursor,
diff --git a/src/client/components/post-form.vue b/src/client/components/post-form.vue
index 88738ae41a..d1fed69da7 100644
--- a/src/client/components/post-form.vue
+++ b/src/client/components/post-form.vue
@@ -346,7 +346,7 @@ export default defineComponent({
 		},
 
 		chooseFileFrom(ev) {
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					type: 'label',
 					text: this.$t('attachFile'),
@@ -612,7 +612,7 @@ export default defineComponent({
 		},
 
 		showActions(ev) {
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: this.$store.state.postFormActions.map(action => ({
 					text: action.title,
 					action: () => {
diff --git a/src/client/components/sidebar.vue b/src/client/components/sidebar.vue
index 513312bc13..bd7fcdad18 100644
--- a/src/client/components/sidebar.vue
+++ b/src/client/components/sidebar.vue
@@ -149,7 +149,7 @@ export default defineComponent({
 				action: () => { this.switchAccount(account); }
 			}));
 
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [...[{
 					type: 'link',
 					text: this.$t('profile'),
@@ -164,7 +164,7 @@ export default defineComponent({
 					icon: faPlus,
 					text: this.$t('addAcount'),
 					action: () => {
-						this.$root.menu({
+						this.$store.dispatch('showMenu', {
 							items: [{
 								text: this.$t('existingAcount'),
 								action: () => { this.addAcount(); },
@@ -187,7 +187,7 @@ export default defineComponent({
 		},
 
 		oepnInstanceMenu(ev) {
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					type: 'link',
 					text: this.$t('dashboard'),
@@ -250,7 +250,7 @@ export default defineComponent({
 				action: def.action,
 				indicate: def.indicated,
 			}));
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [...items, null, {
 					type: 'link',
 					text: this.$t('help'),
diff --git a/src/client/pages/drive.vue b/src/client/pages/drive.vue
index 4eb2595c60..d91273d865 100644
--- a/src/client/pages/drive.vue
+++ b/src/client/pages/drive.vue
@@ -39,7 +39,7 @@ export default defineComponent({
 	methods: {
 		menu(ev) {
 			this.menuOpened = true;
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('addFile'),
 					type: 'label'
diff --git a/src/client/pages/index.home.vue b/src/client/pages/index.home.vue
index 94261f470a..35b3a3283b 100644
--- a/src/client/pages/index.home.vue
+++ b/src/client/pages/index.home.vue
@@ -171,7 +171,7 @@ export default defineComponent({
 					this.$router.push(`/channels/${channel.id}`);
 				}
 			}));
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('_timelines.home'),
 					icon: faHome,
diff --git a/src/client/pages/messaging/index.vue b/src/client/pages/messaging/index.vue
index d9bd60d5a9..958c45c455 100644
--- a/src/client/pages/messaging/index.vue
+++ b/src/client/pages/messaging/index.vue
@@ -115,7 +115,7 @@ export default defineComponent({
 		},
 
 		start(ev) {
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('messagingWithUser'),
 					icon: faUser,
diff --git a/src/client/pages/theme-editor.vue b/src/client/pages/theme-editor.vue
index 42977e6690..6f6af15e1b 100644
--- a/src/client/pages/theme-editor.vue
+++ b/src/client/pages/theme-editor.vue
@@ -255,7 +255,7 @@ export default defineComponent({
 	
 		showTypeMenu(e: MouseEvent) {
 			return new Promise<ThemeValue>((resolve) => {
-				this.$root.menu({
+				this.$store.dispatch('showMenu', {
 					items: [{
 						text: this.$t('_theme.defaultValue'),
 						action: () => resolve(null),
diff --git a/src/client/root.vue b/src/client/root.vue
index 36e9f21f8c..5a4f180abe 100644
--- a/src/client/root.vue
+++ b/src/client/root.vue
@@ -4,6 +4,8 @@
 
 <XPostFormDialog v-if="$store.state.postForm" v-bind="$store.state.postForm"/>
 
+<XMenu v-if="menu" v-bind="menu" :key="menu.id"/>
+
 <XDialog v-if="dialog" v-bind="dialog" :key="dialog.id"/>
 </template>
 
@@ -18,6 +20,7 @@ export default defineComponent({
 		DefaultUI,
 		DeckUI,
 		XDialog: defineAsyncComponent(() => import('./components/dialog.vue')),
+		XMenu: defineAsyncComponent(() => import('./components/menu.vue')),
 		XPostFormDialog: defineAsyncComponent(() => import('./components/post-form-dialog.vue')),
 	},
 
@@ -51,6 +54,12 @@ export default defineComponent({
 			// what: ダイアログが複数ある場合は、一番最後に追加されたダイアログを表示する
 			// why: ダイアログが一度に複数表示されるとユーザビリティが悪いため。
 			return this.$store.state.dialogs[this.$store.state.dialogs.length - 1];
+		},
+
+		menu() {
+			if (this.$store.state.menus.length === 0) return null;
+
+			return this.$store.state.menus[this.$store.state.menus.length - 1];
 		}
 	},
 
diff --git a/src/client/scripts/select-file.ts b/src/client/scripts/select-file.ts
index 9e6f3e3fc1..a89aaddbf3 100644
--- a/src/client/scripts/select-file.ts
+++ b/src/client/scripts/select-file.ts
@@ -65,7 +65,7 @@ export function selectFile(component: any, src: any, label: string | null, multi
 
 		};
 
-		component.$root.menu({
+		component.$store.dispatch('showMenu', {
 			items: [label ? {
 				text: label,
 				type: 'label'
diff --git a/src/client/store.ts b/src/client/store.ts
index b703baf3ae..3a99a24365 100644
--- a/src/client/store.ts
+++ b/src/client/store.ts
@@ -115,6 +115,7 @@ export const store = createStore({
 			text: string;
 			result: any;
 		}[],
+		menus: [],
 		postForm: null,
 		fullView: false,
 
@@ -277,6 +278,10 @@ export const store = createStore({
 			state.dialogs = state.dialogs.filter(d => d.id !== dialogId);
 		},
 
+		addMenu(state, menu) {
+			state.menus.push(menu);
+		},
+
 		setPostForm(state, postForm) {
 			if (state.postForm != null && postForm != null) return;
 			state.postForm = postForm;
@@ -392,6 +397,21 @@ export const store = createStore({
 			});
 		},
 
+		showMenu(ctx, opts) {
+			return new Promise((res, rej) => {
+				const menu = reactive({
+					...opts,
+					result: null,
+					id: Math.random().toString() // TODO: uuidとか使う
+				});
+				ctx.commit('addMenu', menu);
+				const unwatch = watch(() => menu.result, result => {
+					unwatch();
+					res(result);
+				});
+			});
+		},
+
 		api(ctx, { endpoint, data, token }) {
 			if (++ctx.state.pendingApiRequestsCount === 1) {
 				// TODO: spinnerの表示はstoreでやらない
diff --git a/src/client/widgets/timeline.vue b/src/client/widgets/timeline.vue
index bd0b7ba0c9..b82c4fd849 100644
--- a/src/client/widgets/timeline.vue
+++ b/src/client/widgets/timeline.vue
@@ -88,7 +88,7 @@ export default defineComponent({
 					this.setSrc('list');
 				}
 			}));
-			this.$root.menu({
+			this.$store.dispatch('showMenu', {
 				items: [{
 					text: this.$t('_timelines.home'),
 					icon: faHome,