579 lines
22 KiB
HTML
579 lines
22 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>{{ lesson.title }} - {{ course.name }}</title>
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<style>
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:root {
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--bg-primary: #1a1a1a;
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--bg-secondary: #2d2d2d;
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--bg-tertiary: #3d3d3d;
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--bg-tertiary-hover: #404040;
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--text-primary: #e0e0e0;
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--text-muted: #999;
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--border-color: #555;
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--accent: #007acc;
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--accent-hover: #005a9e;
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--font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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--font-size-base: 16px;
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--container-max-width: 1600px;
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--radius: 8px;
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}
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[data-theme="light"] {
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--bg-primary: #f2f2f2;
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--bg-secondary: #ffffff;
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--bg-tertiary: #eeeeee;
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--bg-tertiary-hover: #e2e2e2;
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--text-primary: #222222;
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--text-muted: #666666;
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--border-color: #cccccc;
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}
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[data-density="compact"] .container { padding: 10px; }
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[data-density="compact"] .text-content { padding: 10px; margin: 10px 0; }
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[data-density="compact"] .navigation,
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[data-density="compact"] .nav-buttons { gap: 5px; margin: 10px 0; }
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[data-card-style="elevated"] .container,
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[data-card-style="elevated"] .text-content,
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[data-card-style="elevated"] .file-link {
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box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
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}
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[data-card-style="bordered"] .container,
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[data-card-style="bordered"] .text-content,
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[data-card-style="bordered"] .file-link {
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border: 1px solid var(--border-color);
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}
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html, body {
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height: 100%;
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}
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body {
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font-family: var(--font-family);
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font-size: var(--font-size-base);
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margin: 0;
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background: var(--bg-primary);
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color: var(--text-primary);
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display: flex;
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flex-direction: column;
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min-height: 100vh;
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}
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.page-content {
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flex: 1;
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padding: 20px;
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}
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.app-header {
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background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
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padding: 18px 0;
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border-bottom: 3px solid var(--accent);
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box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
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}
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.app-header .container {
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max-width: var(--container-max-width);
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width: 95%;
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margin: 0 auto;
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display: flex;
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align-items: center;
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gap: 12px;
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}
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.app-header .brand-icon {
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font-size: 1.6em;
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}
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.app-header a.brand-link {
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color: var(--accent);
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text-decoration: none;
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font-size: 1.3em;
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font-weight: 600;
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letter-spacing: 0.5px;
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}
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.app-footer {
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background: var(--bg-secondary);
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border-top: 1px solid var(--border-color);
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padding: 18px 0;
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}
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.app-footer .container-inner {
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max-width: var(--container-max-width);
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width: 95%;
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margin: 0 auto;
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display: flex;
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align-items: center;
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justify-content: space-between;
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gap: 15px;
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flex-wrap: wrap;
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}
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.footer-brand {
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color: var(--text-muted);
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font-size: 0.9em;
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display: flex;
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align-items: center;
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gap: 8px;
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}
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.footer-links {
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display: flex;
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gap: 20px;
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}
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.footer-links a {
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color: var(--text-muted);
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text-decoration: none;
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font-size: 0.9em;
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display: flex;
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align-items: center;
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gap: 6px;
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transition: color 0.2s;
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}
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.footer-links a:hover {
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color: var(--accent);
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}
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.container {
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max-width: var(--container-max-width);
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width: 95%;
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margin: 20px auto;
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background: var(--bg-secondary);
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padding: 20px;
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border-radius: var(--radius);
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}
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video, audio {
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width: 100%;
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max-width: 100%;
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border-radius: var(--radius);
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display: block;
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margin: 0 auto;
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}
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video {
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resize: both;
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overflow: hidden;
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object-fit: contain;
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background: #000;
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min-width: 320px;
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min-height: 200px;
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}
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.resize-hint {
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text-align: center;
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font-size: 0.8em;
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color: var(--text-muted);
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margin-top: 6px;
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}
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.content {
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margin: 20px 0;
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}
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.navigation {
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margin: 20px 0;
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display: flex;
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gap: 10px;
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flex-wrap: wrap;
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align-items: center;
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}
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button {
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padding: 10px 20px;
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margin: 5px;
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cursor: pointer;
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background: var(--accent);
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color: white;
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border: none;
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border-radius: var(--radius);
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transition: background 0.3s;
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}
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button:hover {
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background: var(--accent-hover);
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}
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button:disabled {
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background: #666;
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cursor: not-allowed;
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}
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.file-link {
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display: block;
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margin: 5px 0;
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padding: 10px;
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background: var(--bg-tertiary);
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text-decoration: none;
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color: var(--text-primary);
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border-radius: var(--radius);
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transition: background 0.3s;
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}
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.file-link:hover {
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background: var(--bg-tertiary-hover);
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}
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.lesson-path {
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background: var(--bg-tertiary);
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padding: 10px;
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border-radius: var(--radius);
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margin-bottom: 20px;
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font-family: monospace;
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color: var(--text-muted);
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}
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.lesson-title {
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color: var(--accent);
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margin-bottom: 20px;
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}
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.text-content {
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background: var(--bg-tertiary);
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padding: 20px;
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border-radius: var(--radius);
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margin: 20px 0;
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}
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.text-content.plain-text {
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max-height: 600px;
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overflow-y: auto;
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white-space: pre-wrap;
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font-family: 'Courier New', monospace;
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line-height: 1.6;
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}
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.text-content iframe {
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background: white;
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border-radius: var(--radius);
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}
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.nav-buttons {
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display: flex;
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gap: 10px;
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margin-top: 20px;
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}
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.nav-buttons a {
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text-decoration: none;
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color: inherit;
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}
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</style>
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</head>
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<body>
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<div class="app-header">
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<div class="container">
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<span class="brand-icon">📚</span>
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<a href="/reset_course" class="brand-link">OfflineU</a>
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</div>
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</div>
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<div class="page-content">
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<div class="container">
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<h1 class="lesson-title">{{ lesson.title }}</h1>
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<div class="lesson-path">
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<strong>Path:</strong> {{ lesson_path }}
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</div>
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<div class="navigation">
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<a href="/" style="text-decoration: none; color: var(--accent);">← Back to Course</a>
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<button onclick="markCompleted()">Mark as Completed</button>
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</div>
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<div class="content">
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{% if lesson.video_file %}
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<h3>Video</h3>
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<video controls preload="metadata" id="video-player">
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<source src="/files/{{ lesson.video_file }}" type="video/mp4">
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{% if lesson.subtitle_file %}
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<track kind="subtitles" src="/files/{{ lesson.subtitle_file }}" srclang="en" label="English">
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{% endif %}
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Your browser does not support the video tag.
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</video>
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<p class="resize-hint">↘ Drag the bottom-right corner to resize the player</p>
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{% endif %}
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{% if lesson.audio_file %}
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<h3>Audio</h3>
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<audio controls preload="metadata" id="audio-player">
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<source src="/files/{{ lesson.audio_file }}" type="audio/mp3">
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Your browser does not support the audio tag.
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</audio>
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{% endif %}
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{% if lesson.text_files %}
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<h3>Content</h3>
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{% for text_file in lesson.text_files %}
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<div style="margin-bottom: 20px;">
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<h4>{{ text_file.split('/')[-1] }}</h4>
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<div class="text-content" id="content-{{ loop.index0 }}">
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<div style="text-align: center; color: #666;">Loading content...</div>
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</div>
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<a href="/files/{{ text_file|replace('\\', '/') }}" class="file-link" target="_blank">
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📄 Open {{ text_file.split('/')[-1] }} in new tab
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</a>
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</div>
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{% endfor %}
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{% endif %}
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</div>
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<div class="nav-buttons">
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{% if prev_lesson %}
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<a href="/lesson/{{ prev_lesson }}">
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<button>← Previous</button>
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</a>
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{% else %}
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<button disabled>← Previous</button>
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{% endif %}
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{% if next_lesson %}
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<a href="/lesson/{{ next_lesson }}">
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<button>Next →</button>
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</a>
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{% else %}
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<button disabled>Next →</button>
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{% endif %}
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</div>
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<script>
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// Load text content
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{% for text_file in lesson.text_files %}
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console.log('Loading file: {{ text_file }}');
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const filePath = '{{ text_file|replace("\\", "/") }}';
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console.log('Encoded file path:', filePath);
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// Check if this is an HTML file
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const isHtmlFile = filePath.toLowerCase().endsWith('.html') || filePath.toLowerCase().endsWith('.htm');
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const isPdfFile = filePath.toLowerCase().endsWith('.pdf');
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const isBinaryDoc = ['.docx', '.doc', '.rtf'].some(ext => filePath.toLowerCase().endsWith(ext));
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const contentDiv = document.getElementById('content-{{ loop.index0 }}');
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if (isHtmlFile) {
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// For HTML files, create an iframe
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console.log('Creating iframe for HTML file');
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contentDiv.innerHTML = `
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<iframe
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src="/files/${encodeURIComponent(filePath)}"
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style="width: 100%; height: 600px; border: none; border-radius: 5px;"
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title="${filePath.split('/').pop()}"
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></iframe>
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`;
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} else if (isPdfFile) {
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// For PDFs, embed via iframe rather than fetching as text -
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// browsers render PDFs natively in an iframe, but fetching
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// the raw bytes as text (like below) produces garbage.
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console.log('Embedding PDF in iframe');
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contentDiv.innerHTML = `
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<iframe
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src="/files/${encodeURIComponent(filePath)}"
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style="width: 100%; height: 85vh; border: none; border-radius: 5px; background: #fff;"
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title="${filePath.split('/').pop()}"
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></iframe>
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`;
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} else if (isBinaryDoc) {
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// .docx/.doc/.rtf can't be rendered inline by the browser;
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// fetching them as text would show garbled binary content,
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// so just point at the download/open link instead.
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contentDiv.innerHTML =
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'<div style="color: #999;">Preview isn\'t available for this file type. ' +
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'Use the "Open in new tab" link below to view or download it.</div>';
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} else {
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// For text files, fetch and display content
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fetch('/files/' + encodeURIComponent(filePath))
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.then(response => {
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console.log('Response status:', response.status);
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if (!response.ok) {
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throw new Error(`HTTP ${response.status}: ${response.statusText}`);
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}
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return response.text();
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})
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.then(content => {
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console.log('Content loaded successfully, length:', content.length);
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if (contentDiv) {
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contentDiv.classList.add('plain-text');
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// Check if it's HTML content
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if (content.trim().startsWith('<') && content.includes('</')) {
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contentDiv.innerHTML = content;
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} else {
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// Treat as plain text
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contentDiv.textContent = content;
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}
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}
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})
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.catch(error => {
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console.error('Error loading content:', error);
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if (contentDiv) {
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contentDiv.innerHTML =
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'<div style="color: #ff6b6b;">Error loading content: ' + error.message + '</div>' +
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'<div style="color: #999; font-size: 0.9em; margin-top: 10px;">File path: ' + filePath + '</div>';
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}
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});
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}
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{% endfor %}
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// Media progress tracking
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const video = document.getElementById('video-player');
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const audio = document.getElementById('audio-player');
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const activeMedia = video || audio;
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let isCompleted = false;
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// Restore last-used video player size, and persist future resizes
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// (dragging the native corner handle) so it sticks next time.
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if (video) {
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let applyingStoredSize = true;
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let resizeSaveTimeout = null;
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fetch('/api/settings')
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.then(r => r.json())
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.then(data => {
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const s = data.settings || {};
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if (s.video_width && s.video_height) {
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video.style.width = s.video_width + 'px';
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video.style.height = s.video_height + 'px';
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}
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setTimeout(() => { applyingStoredSize = false; }, 300);
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})
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.catch(() => { applyingStoredSize = false; });
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if (window.ResizeObserver) {
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const observer = new ResizeObserver(() => {
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if (applyingStoredSize) return;
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clearTimeout(resizeSaveTimeout);
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resizeSaveTimeout = setTimeout(() => {
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const rect = video.getBoundingClientRect();
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fetch('/api/settings', {
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({
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video_width: Math.round(rect.width),
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video_height: Math.round(rect.height)
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})
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}).catch(() => {});
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}, 500);
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});
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observer.observe(video);
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}
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}
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if (activeMedia) {
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let lastSaveTime = 0;
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activeMedia.addEventListener('timeupdate', function() {
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const currentTime = activeMedia.currentTime;
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// Save progress every 15 seconds
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if (currentTime - lastSaveTime > 15) {
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saveProgress(currentTime);
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lastSaveTime = currentTime;
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}
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});
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activeMedia.addEventListener('ended', function() {
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saveProgress(activeMedia.currentTime, true);
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markAsCompleted();
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});
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// Resume from saved position
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const savedProgress = {{ lesson.progress_seconds|default(0) }};
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if (savedProgress > 0 && savedProgress < activeMedia.duration - 30) {
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activeMedia.currentTime = savedProgress;
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showNotification(`Resumed from ${Math.floor(savedProgress / 60)}:${String(Math.floor(savedProgress % 60)).padStart(2, '0')}`);
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}
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}
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function saveProgress(progressSeconds, completed = false) {
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const duration = activeMedia && isFinite(activeMedia.duration) ? Math.floor(activeMedia.duration) : null;
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fetch('/api/progress', {
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method: 'POST',
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headers: {'Content-Type': 'application/json'},
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body: JSON.stringify({
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lesson_path: '{{ lesson_path }}',
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completed: completed,
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progress_seconds: Math.floor(progressSeconds),
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duration_seconds: duration
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})
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}).catch(err => console.error('Failed to save progress:', err));
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}
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function markCompleted() {
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if (isCompleted) return;
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const currentTime = activeMedia ? activeMedia.currentTime : 0;
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saveProgress(currentTime, true);
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markAsCompleted();
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}
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function markAsCompleted() {
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const btn = document.querySelector('button[onclick="markCompleted()"]');
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if (btn) {
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btn.textContent = 'Completed ✓';
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btn.style.background = '#28a745';
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btn.disabled = true;
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}
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isCompleted = true;
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showNotification('Lesson marked as completed!', 'success');
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}
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function showNotification(message, type = 'info') {
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const notification = document.createElement('div');
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notification.style.cssText = `
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position: fixed;
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top: 20px;
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right: 20px;
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background: ${type === 'success' ? '#28a745' : '#007acc'};
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color: white;
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padding: 15px 20px;
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border-radius: 5px;
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z-index: 10000;
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box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
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opacity: 0;
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transform: translateY(-20px);
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transition: all 0.3s ease;
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`;
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notification.textContent = message;
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document.body.appendChild(notification);
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setTimeout(() => {
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notification.style.opacity = '1';
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notification.style.transform = 'translateY(0)';
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}, 100);
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setTimeout(() => {
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notification.style.opacity = '0';
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notification.style.transform = 'translateY(-20px)';
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setTimeout(() => {
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if (document.body.contains(notification)) {
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document.body.removeChild(notification);
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}
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}, 300);
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}, 3000);
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}
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// Keyboard shortcuts
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document.addEventListener('keydown', function(e) {
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if (activeMedia && !e.ctrlKey && !e.altKey && !e.metaKey) {
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switch(e.key) {
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case ' ':
|
|
e.preventDefault();
|
|
if (activeMedia.paused) {
|
|
activeMedia.play();
|
|
} else {
|
|
activeMedia.pause();
|
|
}
|
|
break;
|
|
case 'ArrowLeft':
|
|
e.preventDefault();
|
|
activeMedia.currentTime = Math.max(0, activeMedia.currentTime - 10);
|
|
break;
|
|
case 'ArrowRight':
|
|
e.preventDefault();
|
|
activeMedia.currentTime = Math.min(activeMedia.duration, activeMedia.currentTime + 10);
|
|
break;
|
|
case 'ArrowUp':
|
|
e.preventDefault();
|
|
activeMedia.volume = Math.min(1, activeMedia.volume + 0.1);
|
|
showNotification(`Volume: ${Math.round(activeMedia.volume * 100)}%`);
|
|
break;
|
|
case 'ArrowDown':
|
|
e.preventDefault();
|
|
activeMedia.volume = Math.max(0, activeMedia.volume - 0.1);
|
|
showNotification(`Volume: ${Math.round(activeMedia.volume * 100)}%`);
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Set completed state if already completed
|
|
if ({{ 'true' if lesson.completed else 'false' }}) {
|
|
markAsCompleted();
|
|
}
|
|
</script>
|
|
</div>
|
|
</div>
|
|
|
|
<footer class="app-footer">
|
|
<div class="container-inner">
|
|
<div class="footer-brand">
|
|
📚 <a href="/reset_course" style="color: inherit; text-decoration: none;">OfflineU</a>
|
|
</div>
|
|
<div class="footer-links">
|
|
<a href="/help">❓ Help</a>
|
|
<a href="/settings">⚙ Settings</a>
|
|
</div>
|
|
</div>
|
|
</footer>
|
|
|
|
<script src="/static/theme.js"></script>
|
|
</body>
|
|
</html> |