Files
EMLy/frontend/src/lib/components/MailViewer.svelte

724 lines
19 KiB
Svelte

<script lang="ts">
import {
X,
MailOpen,
Image,
FileText,
File,
ShieldCheck,
Signature,
FileCode,
Loader2,
Download,
} from '@lucide/svelte';
import { sidebarOpen } from '$lib/stores/app';
import { onDestroy, onMount } from 'svelte';
import { toast } from 'svelte-sonner';
import { EventsOn, WindowShow, WindowUnminimise } from '$lib/wailsjs/runtime/runtime';
import { mailState } from '$lib/stores/mail-state.svelte';
import * as m from '$lib/paraglide/messages';
import { dev } from '$app/environment';
// Import refactored utilities
import {
IFRAME_UTIL_HTML_DARK,
IFRAME_UTIL_HTML_LIGHT,
CONTENT_TYPES,
PEC_FILES,
arrayBufferToBase64,
createDataUrl,
openPDFAttachment,
openImageAttachment,
openEMLAttachment,
openAndLoadEmail,
loadEmailFromPath,
processEmailBody,
isEmailFile,
} from '$lib/utils/mail';
import { settingsStore } from '$lib/stores/settings.svelte';
import { Separator } from "$lib/components/ui/separator";
// ============================================================================
// State
// ============================================================================
let unregisterEvents = () => {};
let isLoading = $state(false);
let loadingText = $state('');
// Derived iframe HTML based on dark/light setting
let iframeUtilHtml = $derived(
settingsStore.settings.useDarkEmailViewer !== false
? IFRAME_UTIL_HTML_DARK
: IFRAME_UTIL_HTML_LIGHT
);
// ============================================================================
// Event Handlers
// ============================================================================
function onClear() {
mailState.clear();
}
function onDownloadAttachments() {
if (!mailState.currentEmail || !mailState.currentEmail.attachments) return;
mailState.currentEmail.attachments.forEach((att) => {
const base64 = arrayBufferToBase64(att.data);
const dataUrl = createDataUrl(att.contentType, base64);
const link = document.createElement('a');
link.href = dataUrl;
link.download = att.filename;
document.body.appendChild(link);
link.click();
document.body.removeChild(link);
});
}
async function onOpenMail() {
isLoading = true;
loadingText = m.layout_loading_text();
const result = await openAndLoadEmail();
if (result.cancelled) {
isLoading = false;
loadingText = '';
return;
}
if (result.success && result.email) {
mailState.setParams(result.email);
sidebarOpen.set(false);
} else if (result.error) {
console.error('Failed to read email file:', result.error);
toast.error(m.mail_error_opening());
}
isLoading = false;
loadingText = '';
}
async function handleOpenPDF(base64Data: string, filename: string) {
await openPDFAttachment(base64Data, filename);
}
async function handleOpenImage(base64Data: string, filename: string) {
await openImageAttachment(base64Data, filename);
}
async function handleOpenEML(base64Data: string, filename: string) {
await openEMLAttachment(base64Data, filename);
}
function handleWheel(event: WheelEvent) {
if (event.ctrlKey) {
event.preventDefault();
}
}
// ============================================================================
// Effects
// ============================================================================
// Process email body when current email changes
$effect(() => {
const processCurrentEmail = async () => {
if (mailState.currentEmail?.body) {
const processedBody = await processEmailBody(mailState.currentEmail.body);
if (processedBody !== mailState.currentEmail.body) {
mailState.currentEmail.body = processedBody;
}
}
console.info('Current email changed:', mailState.currentEmail?.subject);
if (mailState.currentEmail !== null) {
sidebarOpen.set(false);
}
};
processCurrentEmail();
});
// ============================================================================
// Lifecycle
// ============================================================================
onMount(async () => {
// Listen for second instance args (when another file is opened while app is running)
unregisterEvents = EventsOn('launchArgs', async (args: string[]) => {
console.log('got event launchArgs:', args);
if (!args || args.length === 0) return;
for (const arg of args) {
if (isEmailFile(arg)) {
console.log('Loading file from second instance:', arg);
isLoading = true;
loadingText = m.layout_loading_text();
// Check if MSG file for special loading text
if (arg.toLowerCase().endsWith('.msg')) {
loadingText = m.mail_loading_msg_conversion();
}
const result = await loadEmailFromPath(arg);
if (result.success && result.email) {
mailState.setParams(result.email);
sidebarOpen.set(false);
WindowUnminimise();
WindowShow();
} else if (result.error) {
console.error('Failed to load email:', result.error);
toast.error('Failed to load email file');
}
isLoading = false;
loadingText = '';
break;
}
}
});
});
onDestroy(() => {
if (unregisterEvents) {
unregisterEvents();
}
});
// ============================================================================
// Helpers
// ============================================================================
function getAttachmentClass(att: { contentType: string; filename: string }): string {
if (att.contentType.startsWith(CONTENT_TYPES.IMAGE)) return 'image';
if (att.contentType === CONTENT_TYPES.PDF || att.filename.toLowerCase().endsWith('.pdf'))
return 'pdf';
if (att.filename.toLowerCase().endsWith('.eml')) return 'eml';
return 'file';
}
function isPecSignature(filename: string, isPec: boolean): boolean {
return isPec && filename.toLowerCase().endsWith(PEC_FILES.SIGNATURE);
}
function isPecCertificate(filename: string, isPec: boolean): boolean {
return isPec && filename.toLowerCase() === PEC_FILES.CERTIFICATE;
}
</script>
<div class="panel fill" aria-label="Events">
{#if isLoading}
<div class="loading-overlay">
<Loader2 class="spinner" size="48" />
<div class="loading-text">{loadingText}</div>
</div>
{/if}
<div class="events" role="log" aria-live="polite">
{#if mailState.currentEmail === null}
<!-- Empty State -->
<div class="empty-state">
<div class="empty-icon">
<MailOpen size="48" strokeWidth={1} />
</div>
<div class="empty-text">{m.mail_no_email_selected()}</div>
<button class="browse-btn" onclick={onOpenMail} disabled={isLoading}>
{m.mail_open_eml_btn()}
</button>
</div>
{:else}
<!-- Email View -->
<div class="email-view">
<!-- Header -->
<div class="email-header-content">
<div class="subject-row">
<div class="email-subject">
{mailState.currentEmail.subject || m.mail_subject_no_subject()}
</div>
<div class="controls">
<button
class="btn"
onclick={onDownloadAttachments}
aria-label={m.mail_download_btn_label()}
title={m.mail_download_btn_title()}
disabled={isLoading}
>
<Download size="15" />
{m.mail_download_btn_text()}
</button>
<button
class="btn"
onclick={onOpenMail}
aria-label={m.mail_open_btn_label()}
title={m.mail_open_btn_title()}
disabled={isLoading}
>
<MailOpen size="15" />
{m.mail_open_btn_text()}
</button>
<button
class="btn"
onclick={onClear}
aria-label={m.mail_close_btn_label()}
title={m.mail_close_btn_title()}
disabled={isLoading}
>
<X size="15" />
{m.mail_close_btn_text()}
</button>
</div>
</div>
<!-- Meta Grid -->
<div class="email-meta-grid">
<span class="label">{m.mail_from()}</span>
<span class="value">{mailState.currentEmail.from}</span>
{#if mailState.currentEmail.to && mailState.currentEmail.to.length > 0}
<span class="label">{m.mail_to()}</span>
<span class="value">{mailState.currentEmail.to.join(', ')}</span>
{/if}
{#if mailState.currentEmail.cc && mailState.currentEmail.cc.length > 0}
<span class="label">{m.mail_cc()}</span>
<span class="value">{mailState.currentEmail.cc.join(', ')}</span>
{/if}
{#if mailState.currentEmail.bcc && mailState.currentEmail.bcc.length > 0}
<span class="label">{m.mail_bcc()}</span>
<span class="value">{mailState.currentEmail.bcc.join(', ')}</span>
{/if}
{#if mailState.currentEmail.isPec}
<span class="label">{m.mail_sign_label()}</span>
<span class="value">
<span class="pec-badge" title="Posta Elettronica Certificata">
<ShieldCheck size="14" />
PEC
</span>
</span>
{/if}
</div>
</div>
<!-- Attachments -->
<div class="email-attachments">
<span class="att-section-label">{m.mail_attachments()}</span>
<div class="att-list">
{#if mailState.currentEmail.attachments && mailState.currentEmail.attachments.length > 0}
{#each mailState.currentEmail.attachments as att}
{@const base64 = arrayBufferToBase64(att.data)}
{@const isImage = att.contentType.startsWith(CONTENT_TYPES.IMAGE)}
{@const isPdf =
att.contentType === CONTENT_TYPES.PDF ||
att.filename.toLowerCase().endsWith('.pdf')}
{@const isEml = att.filename.toLowerCase().endsWith('.eml')}
{@const isPecSig = isPecSignature(att.filename, mailState.currentEmail.isPec)}
{@const isPecCert = isPecCertificate(att.filename, mailState.currentEmail.isPec)}
{#if isImage}
<button
class="att-btn image"
onclick={() => handleOpenImage(base64, att.filename)}
>
<Image size="14" />
<span class="att-name">{att.filename}</span>
</button>
{:else if isPdf}
<button class="att-btn pdf" onclick={() => handleOpenPDF(base64, att.filename)}>
<FileText size="14" />
<span class="att-name">{att.filename}</span>
</button>
{:else if isEml}
<button class="att-btn eml" onclick={() => handleOpenEML(base64, att.filename)}>
<MailOpen size="14" />
<span class="att-name">{att.filename}</span>
</button>
{:else if isPecSig}
<a
class="att-btn file"
href={createDataUrl(att.contentType, base64)}
download={att.filename}
>
<Signature size="14" />
<span class="att-name">{att.filename}</span>
</a>
{:else if isPecCert}
<a
class="att-btn file"
href={createDataUrl(att.contentType, base64)}
download={att.filename}
>
<FileCode size="14" />
<span class="att-name">{att.filename}</span>
</a>
{:else}
<a
class="att-btn file"
href={createDataUrl(att.contentType, base64)}
download={att.filename}
>
{#if isImage}
<Image size="14" />
{:else}
<File size="14" />
{/if}
<span class="att-name">{att.filename}</span>
</a>
{/if}
{/each}
{:else}
<span class="att-empty">{m.mail_no_attachments()}</span>
{/if}
</div>
</div>
<!-- Email Body -->
<div class="email-body-wrapper" class:light-theme={settingsStore.settings.useDarkEmailViewer === false}>
<iframe
srcdoc={mailState.currentEmail.body + iframeUtilHtml}
title="Email Body"
class="email-iframe"
sandbox="allow-same-origin allow-scripts"
onwheel={handleWheel}
></iframe>
</div>
</div>
{/if}
</div>
</div>
<style>
.loading-overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.7);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
z-index: 50;
backdrop-filter: blur(4px);
gap: 16px;
}
:global(.spinner) {
animation: spin 1s linear infinite;
}
@keyframes spin {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
.loading-text {
color: white;
font-size: 16px;
font-weight: 500;
}
.panel {
background: var(--card);
border: 1px solid var(--border);
border-radius: 14px;
overflow: hidden;
}
.panel.fill {
flex: 1 1 0;
min-height: 0;
display: flex;
flex-direction: column;
}
.btn {
display: inline-flex;
align-items: center;
gap: 8px;
height: 34px;
padding: 0 12px;
border-radius: 10px;
border: 1px solid var(--border);
background: var(--muted);
color: var(--muted-foreground);
cursor: pointer;
user-select: none;
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
}
.btn:hover {
background: var(--accent);
color: var(--accent-foreground);
}
.events {
flex: 1 1 auto;
min-height: 0;
overflow: auto;
padding: 0;
}
.email-view {
display: flex;
flex-direction: column;
height: 100%;
gap: 0;
}
.email-header-content {
background: var(--card);
padding: 16px;
border-bottom: 1px solid var(--border);
}
.email-subject {
font-size: 18px;
font-weight: 600;
line-height: 1.25;
color: var(--foreground);
min-width: 0;
overflow-wrap: break-word;
}
.subject-row {
display: flex;
justify-content: space-between;
align-items: flex-start;
gap: 16px;
margin-bottom: 12px;
}
.subject-row .controls {
display: flex;
gap: 6px;
flex-shrink: 0;
}
.subject-row .btn {
height: 28px;
padding: 0 8px;
}
.email-meta-grid {
display: grid;
grid-template-columns: 60px 1fr;
gap: 4px;
font-size: 13px;
}
.email-meta-grid .label {
text-align: right;
color: var(--muted-foreground);
margin-right: 8px;
font-weight: 500;
}
.email-meta-grid .value {
color: var(--foreground);
word-break: break-all;
font-weight: 500;
}
.email-attachments {
padding: 10px 16px;
border-bottom: 1px solid var(--border);
background: var(--muted);
display: flex;
align-items: center;
gap: 12px;
overflow-x: auto;
}
.att-section-label {
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: var(--muted-foreground);
flex-shrink: 0;
}
.att-list {
display: flex;
gap: 8px;
}
.att-btn {
display: inline-flex;
align-items: center;
gap: 6px;
height: 28px;
padding: 0 10px;
border-radius: 6px;
border: 1px solid var(--border);
background: transparent;
color: var(--foreground);
font-size: 12px;
cursor: pointer;
text-decoration: none;
max-width: 200px;
}
.att-btn:hover {
background: var(--accent);
color: var(--accent-foreground);
}
.att-btn.image {
color: #60a5fa;
border-color: rgba(96, 165, 250, 0.3);
}
.att-btn.image:hover {
color: #93c5fd;
}
.att-btn.pdf {
color: #f87171;
border-color: rgba(248, 113, 113, 0.3);
}
.att-btn.pdf:hover {
color: #fca5a5;
}
.att-btn.eml {
color: hsl(49, 80%, 49%);
border-color: rgba(224, 206, 39, 0.3);
}
.att-btn.eml:hover {
color: hsl(49, 80%, 65%);
}
.att-name {
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.email-body-wrapper {
flex: 1;
background: #0d0d0d;
position: relative;
min-height: 200px;
border-radius: 0 0 14px 14px;
overflow: hidden;
}
.email-body-wrapper.light-theme {
background: #ffffff;
}
.email-iframe {
width: 100%;
height: 100%;
border: none;
display: block;
}
.empty-state {
height: 100%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
gap: 16px;
opacity: 0.6;
padding: 20px;
}
.empty-icon {
opacity: 0.5;
}
.empty-text {
font-size: 14px;
font-weight: 500;
}
.browse-btn {
display: flex;
align-items: center;
justify-content: center;
height: 36px;
padding: 0 16px;
background: var(--muted);
border: 1px solid var(--border);
border-radius: 8px;
color: var(--foreground);
font-size: 13px;
font-weight: 500;
cursor: pointer;
transition: all 0.2s;
}
.browse-btn:hover {
background: var(--accent);
border-color: var(--accent-foreground);
}
.browse-btn:disabled,
.btn:disabled {
opacity: 0.5;
cursor: not-allowed;
pointer-events: none;
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: var(--border);
border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
background: var(--muted-foreground);
}
::-webkit-scrollbar-corner {
background: transparent;
}
.att-empty {
font-size: 11px;
color: var(--muted-foreground);
font-style: italic;
}
.pec-badge {
display: inline-flex;
align-items: center;
gap: 4px;
background: rgba(16, 185, 129, 0.15);
color: #34d399;
border: 1px solid rgba(16, 185, 129, 0.3);
padding: 2px 6px;
border-radius: 6px;
font-size: 11px;
font-weight: 700;
vertical-align: middle;
user-select: none;
width: fit-content;
}
</style>