frontend: add About dialog and unify global dialog backdrop

frontend/src/App.vue

@@ -8,6 +8,7 @@
   <SettingsModal />
   <UserManagementModal />
   <UserTokensModal />
+  <AboutModal />
   <AccessDeniedModal />
   <header>
     <HeaderMain ref="headerMain" :path="path.pathList" :query="path.query" />
@@ -28,11 +29,12 @@ import type HeaderMain from '@/components/HeaderMain.vue'
 import { loadSession, watchConnect, watchDisconnect } from '@/repositories/WS'
 import { useMainStore } from '@/stores/main'
 import type { ComputedRef } from 'vue'
-import { onMounted, onUnmounted, ref, watchEffect } from 'vue'
+import { onMounted, onUnmounted, ref, watch } from 'vue'
 import { RouterView } from 'vue-router'
 
 import Router from '@/router/index'
 import { computed } from 'vue'
+import AboutModal from './components/AboutModal.vue'
 import AccessDeniedModal from './components/AccessDeniedModal.vue'
 import SelectionToolbar from './components/SelectionToolbar.vue'
 import type SettingsModalVue from './components/SettingsModal.vue'
@@ -56,12 +58,16 @@ const path: ComputedRef<Path> = computed(() => {
     query
   }
 })
-watchEffect(() => {
-  document.title =
-    path.value.path.replace(/\/$/, '').split('/').pop() ||
-    store.server.name ||
-    'Cista Storage'
-})
+watch(
+  () => path.value.path,
+  () => {
+    document.title =
+      path.value.path.replace(/\/$/, '').split('/').pop() ||
+      store.server.name ||
+      'Cista Storage'
+  },
+  { immediate: true }
+)
 onMounted(loadSession)
 onMounted(watchConnect)
 onUnmounted(watchDisconnect)

frontend/src/assets/logo-square.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="512" height="512" viewBox="0 0 512 512"><rect width="512" height="512" fill="#f80"/><path fill="#fff" d="M381 298h-84V167h-66L339 35l108 132h-66zm-168-84h-84v131H63l108 132 108-132h-66z"/></svg>

frontend/src/components/AboutModal.vue

@@ -0,0 +1,110 @@
+<template>
+  <ModalDialog name="about" title="">
+    <div class="about-content">
+      <div class="about-logo-pane">
+        <img :src="logoUrl" alt="Cista Storage logo" class="about-logo" />
+      </div>
+      <div class="about-details">
+        <h3 class="about-name">Cista {{ softwareVersion }}</h3>
+        <p class="about-link">
+          <a :href="projectUrl" target="_blank" rel="noopener noreferrer">{{ displayProjectUrl }}</a>
+        </p>
+        <div class="dialog-buttons about-actions">
+          <div class="spacer"></div>
+          <input id="close" type="reset" value="Close" class="button" @click="close" />
+        </div>
+      </div>
+    </div>
+  </ModalDialog>
+</template>
+
+<script setup lang="ts">
+import logoUrl from '@/assets/logo-square.svg?url'
+import ModalDialog from '@/components/ModalDialog.vue'
+import { useMainStore } from '@/stores/main'
+import { computed } from 'vue'
+
+const store = useMainStore()
+
+const softwareVersion = computed(() => store.server.version || 'unknown')
+const projectUrl = 'https://git.zi.fi/Vasanko/cista-storage'
+const displayProjectUrl = projectUrl.replace(/^https?:\/\//, '')
+
+const close = () => {
+  store.dialog = ''
+}
+</script>
+
+<style scoped>
+:deep(#about.modal-dialog) {
+  overflow: hidden;
+}
+
+.about-content {
+  display: grid;
+  grid-template-columns: 11rem minmax(0, 1fr);
+  align-items: stretch;
+  width: min(35rem, 92vw);
+  min-width: 0;
+  min-height: 0;
+  margin: -1rem;
+  overflow: hidden;
+}
+
+.about-logo-pane {
+  display: block;
+  padding: 0;
+  overflow: hidden;
+}
+
+.about-logo {
+  width: 100%;
+  height: auto;
+  aspect-ratio: 1 / 1;
+  margin: 0;
+  display: block;
+}
+
+.about-details {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  padding: 1.25rem;
+}
+
+.about-name {
+  margin: 0;
+}
+
+.about-link {
+  margin: 0.65rem 0 1rem;
+  word-break: break-word;
+}
+
+.about-actions {
+  margin-top: auto;
+}
+
+@media (max-width: 40rem) {
+  .about-content {
+    grid-template-columns: 1fr;
+    width: min(24rem, 90vw);
+  }
+
+  .about-logo-pane {
+    width: 100%;
+    aspect-ratio: 1 / 1;
+  }
+
+  .about-logo {
+    width: 100%;
+    height: 100%;
+    aspect-ratio: 1 / 1;
+    object-fit: contain;
+  }
+
+  .about-details {
+    padding: 0.85rem;
+  }
+}
+</style>

frontend/src/components/AccessDeniedModal.vue

@@ -1,32 +1,19 @@
 <template>
-  <div v-if="store.dialog === 'accessdenied'" class="modal-overlay">
-    <div class="modal-dialog" id="accessdenied">
-      <div class="modal-content access-denied">
-        <p class="icon">⛔</p>
-        <p class="message">Access Denied</p>
-        <button @click="reload" class="button">Reload</button>
-      </div>
+  <ModalDialog name="accessdenied" title="">
+    <div class="access-denied">
+      <p class="icon">⛔</p>
+      <p class="message">Access Denied</p>
+      <button @click="reload" class="button">Reload</button>
     </div>
-  </div>
+  </ModalDialog>
 </template>
 
 <script setup lang="ts">
-import { useMainStore } from '@/stores/main'
-import { holdGlobalBackdrop } from 'paskia'
-import { watchEffect } from 'vue'
-
-const store = useMainStore()
+import ModalDialog from '@/components/ModalDialog.vue'
 
 const reload = () => {
   location.reload()
 }
-
-// Keep backdrop active when this dialog shows
-watchEffect(() => {
-  if (store.dialog === 'accessdenied') {
-    holdGlobalBackdrop()
-  }
-})
 </script>
 
 <style scoped>

frontend/src/components/HeaderMain.vue

@@ -164,6 +164,14 @@ const settingsMenu = (e: Event) => {
       }
     })
   }
+
+  items.push({
+    label: 'ℹ️ About Cista...',
+    onClick: () => {
+      store.dialog = 'about'
+    }
+  })
+
   ContextMenu.showContextMenu({
     // @ts-ignore
     x: e.target.getBoundingClientRect().right,

frontend/src/components/ModalDialog.vue

@@ -15,15 +15,55 @@
 <script setup lang="ts">
 import { useMainStore } from '@/stores/main'
 import { holdGlobalBackdrop, releaseGlobalBackdrop } from 'paskia'
-import { nextTick, ref, watchEffect } from 'vue'
+import { nextTick, onBeforeUnmount, ref, watch, watchEffect } from 'vue'
 
 const overlay = ref<HTMLDivElement | null>(null)
 const dialog = ref<HTMLDivElement | null>(null)
 const store = useMainStore()
+let backdropHeld = false
+
+const ensureGlobalBackdropStyles = () => {
+  if (typeof document === 'undefined') return
+  if (document.getElementById('paskia-dialog')) return
+  const style = document.createElement('style')
+  style.id = 'paskia-dialog'
+  style.textContent = `body::before {
+  content: '';
+  position: fixed;
+  inset: 0;
+  z-index: 1099;
+  background: transparent;
+  backdrop-filter: blur(0) brightness(1);
+  -webkit-backdrop-filter: blur(0) brightness(1);
+  pointer-events: none;
+  visibility: hidden;
+  transition: all 0.2s ease-out;
+}
+body.paskia-backdrop::before {
+  -webkit-backdrop-filter: blur(.2rem) brightness(0.5);
+  backdrop-filter: blur(.2rem) brightness(0.5);
+  visibility: visible;
+}
+body.paskia-backdrop {
+  overflow: auto;
+}
+#paskia-iframe {
+  border: none;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  z-index: 9999;
+  color-scheme: auto;
+  background: transparent;
+}
+`
+  document.head.insertBefore(style, document.head.firstChild)
+}
 
 const close = () => {
   store.dialog = ''
-  releaseGlobalBackdrop()
 }
 
 const props = defineProps<{
@@ -33,7 +73,6 @@ const props = defineProps<{
 
 const show = () => {
   store.dialog = props.name
-  holdGlobalBackdrop()
   nextTick(() => {
     overlay.value?.focus()
     const input = dialog.value?.querySelector('input')
@@ -41,6 +80,29 @@ const show = () => {
   })
 }
 defineExpose({ show, close })
+
+watch(
+  () => store.dialog === props.name,
+  isOpen => {
+    if (isOpen && !backdropHeld) {
+      ensureGlobalBackdropStyles()
+      holdGlobalBackdrop()
+      backdropHeld = true
+    } else if (!isOpen && backdropHeld) {
+      releaseGlobalBackdrop()
+      backdropHeld = false
+    }
+  },
+  { immediate: true }
+)
+
+onBeforeUnmount(() => {
+  if (backdropHeld) {
+    releaseGlobalBackdrop()
+    backdropHeld = false
+  }
+})
+
 watchEffect(() => {
   if (overlay.value) {
     overlay.value.focus()

frontend/src/stores/main.ts

@@ -84,7 +84,7 @@ export const useMainStore = defineStore('main', {
       paskia?: boolean
       office_previews?: boolean
     },
-    dialog: '' as '' | 'settings' | 'usermgmt' | 'accessdenied' | 'tokens',
+    dialog: '' as '' | 'settings' | 'usermgmt' | 'accessdenied' | 'tokens' | 'about',
     uprogress: {} as any,
     dprogress: {} as any,
     prefs: {