@ym-han/monaco-error-lens/dist/styles.css

Error Lens for Monaco Editor, adapted from the VSCode Error Lens extension: makes diagnostics more visible with inline messages, line highlighting, and gutter icons. WARNING: Very experimental; use with caution.

/**
 * Monaco Error Lens Styles
 * Complete CSS for all Error Lens features
 */

/* CSS Variables for theme support */
:root {
  --monaco-error-lens-error-bg: rgba(228, 85, 84, 0.15);
  --monaco-error-lens-error-fg: #ff6464;
  --monaco-error-lens-error-border: rgba(228, 85, 84, 0.3);
  
  --monaco-error-lens-warning-bg: rgba(255, 148, 47, 0.15);
  --monaco-error-lens-warning-fg: #fa973a;
  --monaco-error-lens-warning-border: rgba(255, 148, 47, 0.3);
  
  --monaco-error-lens-info-bg: rgba(0, 183, 228, 0.15);
  --monaco-error-lens-info-fg: #00b7e4;
  --monaco-error-lens-info-border: rgba(0, 183, 228, 0.3);
  
  --monaco-error-lens-hint-bg: rgba(119, 136, 153, 0.15);
  --monaco-error-lens-hint-fg: #778899;
  --monaco-error-lens-hint-border: rgba(119, 136, 153, 0.3);

  --monaco-error-lens-transition: all 0.2s ease-in-out;
  --monaco-error-lens-border-radius: 3px;
  --monaco-error-lens-font-size: 0.9em;
  --monaco-error-lens-opacity: 0.7;
}

/* Dark theme adjustments */
[data-theme="dark"], .monaco-editor.vs-dark {
  --monaco-error-lens-error-bg: rgba(255, 100, 100, 0.15);
  --monaco-error-lens-error-fg: #ff6464;
  
  --monaco-error-lens-warning-bg: rgba(255, 148, 47, 0.15);
  --monaco-error-lens-warning-fg: #fa973a;
  
  --monaco-error-lens-info-bg: rgba(0, 183, 228, 0.15);
  --monaco-error-lens-info-fg: #00b7e4;
  
  --monaco-error-lens-hint-bg: rgba(170, 170, 170, 0.15);
  --monaco-error-lens-hint-fg: #aaaaaa;
}

/* High contrast theme */
@media (prefers-contrast: high) {
  :root {
    --monaco-error-lens-error-bg: rgba(255, 0, 0, 0.25);
    --monaco-error-lens-error-fg: #ff0000;
    --monaco-error-lens-error-border: rgba(255, 0, 0, 0.5);
    
    --monaco-error-lens-warning-bg: rgba(255, 165, 0, 0.25);
    --monaco-error-lens-warning-fg: #ffa500;
    --monaco-error-lens-warning-border: rgba(255, 165, 0, 0.5);
    
    --monaco-error-lens-info-bg: rgba(0, 100, 255, 0.25);
    --monaco-error-lens-info-fg: #0064ff;
    --monaco-error-lens-info-border: rgba(0, 100, 255, 0.5);
    
    --monaco-error-lens-hint-bg: rgba(128, 128, 128, 0.25);
    --monaco-error-lens-hint-fg: #808080;
    --monaco-error-lens-hint-border: rgba(128, 128, 128, 0.5);
    
    --monaco-error-lens-opacity: 1;
  }
}

/* Base styles for all Error Lens elements */
.monaco-error-lens-message,
.monaco-error-lens-line,
.monaco-error-lens-gutter,
.monaco-error-lens-range {
  pointer-events: none;
  position: relative;
}

/* Inline message styles */
.monaco-error-lens-message {
  display: inline-block;
}

.monaco-error-lens-message::after {
  content: attr(data-message);
  margin-left: 1ch;
  opacity: var(--monaco-error-lens-opacity);
  font-style: italic;
  font-size: var(--monaco-error-lens-font-size);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 50ch;
  transition: var(--monaco-error-lens-transition);
}

/* Line highlighting styles */
.monaco-error-lens-line {
  border-radius: var(--monaco-error-lens-border-radius);
  transition: var(--monaco-error-lens-transition);
}

.monaco-error-lens-line-error {
  background-color: var(--monaco-error-lens-error-bg);
  border-left: 3px solid var(--monaco-error-lens-error-border);
}

.monaco-error-lens-line-warning {
  background-color: var(--monaco-error-lens-warning-bg);
  border-left: 3px solid var(--monaco-error-lens-warning-border);
}

.monaco-error-lens-line-info {
  background-color: var(--monaco-error-lens-info-bg);
  border-left: 3px solid var(--monaco-error-lens-info-border);
}

.monaco-error-lens-line-hint {
  background-color: var(--monaco-error-lens-hint-bg);
  border-left: 3px solid var(--monaco-error-lens-hint-border);
}

/* Message color styles */
.monaco-error-lens-message-error::after {
  color: var(--monaco-error-lens-error-fg);
}

.monaco-error-lens-message-warning::after {
  color: var(--monaco-error-lens-warning-fg);
}

.monaco-error-lens-message-info::after {
  color: var(--monaco-error-lens-info-fg);
}

.monaco-error-lens-message-hint::after {
  color: var(--monaco-error-lens-hint-fg);
}

/* Gutter icon styles */
.monaco-error-lens-gutter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.monaco-error-lens-gutter::before {
  font-weight: bold;
  font-size: 0.8em;
  line-height: 1;
  display: inline-block;
  transition: var(--monaco-error-lens-transition);
}

.monaco-error-lens-gutter-error::before {
  content: '●';
  color: var(--monaco-error-lens-error-fg);
}

.monaco-error-lens-gutter-warning::before {
  content: '●';
  color: var(--monaco-error-lens-warning-fg);
}

.monaco-error-lens-gutter-info::before {
  content: '●';
  color: var(--monaco-error-lens-info-fg);
}

.monaco-error-lens-gutter-hint::before {
  content: '●';
  color: var(--monaco-error-lens-hint-fg);
}

/* Letter style gutter icons */
.monaco-error-lens-gutter.letter-style .monaco-error-lens-gutter-error::before {
  content: 'E';
  background-color: var(--monaco-error-lens-error-fg);
  color: white;
  border-radius: 50%;
  width: 14px;
  height: 14px;
  font-size: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.monaco-error-lens-gutter.letter-style .monaco-error-lens-gutter-warning::before {
  content: 'W';
  background-color: var(--monaco-error-lens-warning-fg);
  color: white;
  border-radius: 50%;
  width: 14px;
  height: 14px;
  font-size: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.monaco-error-lens-gutter.letter-style .monaco-error-lens-gutter-info::before {
  content: 'I';
  background-color: var(--monaco-error-lens-info-fg);
  color: white;
  border-radius: 50%;
  width: 14px;
  height: 14px;
  font-size: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.monaco-error-lens-gutter.letter-style .monaco-error-lens-gutter-hint::before {
  content: 'H';
  background-color: var(--monaco-error-lens-hint-fg);
  color: white;
  border-radius: 50%;
  width: 14px;
  height: 14px;
  font-size: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

/* Square style gutter icons */
.monaco-error-lens-gutter.square-style .monaco-error-lens-gutter-error::before {
  content: '■';
  color: var(--monaco-error-lens-error-fg);
}

.monaco-error-lens-gutter.square-style .monaco-error-lens-gutter-warning::before {
  content: '■';
  color: var(--monaco-error-lens-warning-fg);
}

.monaco-error-lens-gutter.square-style .monaco-error-lens-gutter-info::before {
  content: '■';
  color: var(--monaco-error-lens-info-fg);
}

.monaco-error-lens-gutter.square-style .monaco-error-lens-gutter-hint::before {
  content: '■';
  color: var(--monaco-error-lens-hint-fg);
}

/* Range highlighting styles */
.monaco-error-lens-range {
  border-radius: 2px;
  transition: var(--monaco-error-lens-transition);
}

.monaco-error-lens-range-error {
  background-color: var(--monaco-error-lens-error-bg);
  border: 1px solid var(--monaco-error-lens-error-border);
}

.monaco-error-lens-range-warning {
  background-color: var(--monaco-error-lens-warning-bg);
  border: 1px solid var(--monaco-error-lens-warning-border);
}

.monaco-error-lens-range-info {
  background-color: var(--monaco-error-lens-info-bg);
  border: 1px solid var(--monaco-error-lens-info-border);
}

.monaco-error-lens-range-hint {
  background-color: var(--monaco-error-lens-hint-bg);
  border: 1px solid var(--monaco-error-lens-hint-border);
}

/* Animation support */
@keyframes errorLensFadeIn {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: var(--monaco-error-lens-opacity);
    transform: translateX(0);
  }
}

@keyframes errorLensPulse {
  0%, 100% {
    opacity: var(--monaco-error-lens-opacity);
  }
  50% {
    opacity: calc(var(--monaco-error-lens-opacity) * 0.5);
  }
}

.monaco-error-lens-message.animate::after {
  animation: errorLensFadeIn 0.2s ease-in-out;
}

.monaco-error-lens-gutter.animate::before {
  animation: errorLensPulse 2s ease-in-out infinite;
}

/* Hover effects */
.monaco-error-lens-line:hover {
  opacity: 1;
}

.monaco-error-lens-line:hover .monaco-error-lens-message::after {
  opacity: 1;
  max-width: none;
}

.monaco-error-lens-gutter:hover::before {
  transform: scale(1.2);
}

/* Focus styles for accessibility */
.monaco-error-lens-line:focus-within {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
  .monaco-error-lens-message::after {
    display: none;
  }
  
  :root {
    --monaco-error-lens-font-size: 0.8em;
  }
}

@media (max-width: 480px) {
  .monaco-error-lens-line {
    border-left-width: 2px;
  }
  
  .monaco-error-lens-gutter::before {
    font-size: 0.7em;
  }
}

/* Print styles */
@media print {
  .monaco-error-lens-message::after {
    display: none;
  }
  
  .monaco-error-lens-line {
    background-color: transparent !important;
    border-left: none !important;
  }
  
  .monaco-error-lens-gutter::before {
    display: none;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .monaco-error-lens-message,
  .monaco-error-lens-line,
  .monaco-error-lens-gutter,
  .monaco-error-lens-range {
    transition: none;
  }
  
  .monaco-error-lens-message.animate::after,
  .monaco-error-lens-gutter.animate::before {
    animation: none;
  }
}

/* Custom scrollbar styles for Monaco editor with Error Lens */
.monaco-editor.error-lens-enabled .monaco-scrollable-element .scrollbar {
  background-color: rgba(0, 0, 0, 0.1);
}

.monaco-editor.error-lens-enabled .monaco-scrollable-element .scrollbar .slider {
  background-color: rgba(0, 0, 0, 0.3);
}

/* Monaco editor integration styles */
.monaco-editor .monaco-error-lens-message {
  z-index: 1;
}

.monaco-editor .monaco-error-lens-line {
  z-index: 0;
}

.monaco-editor .margin .monaco-error-lens-gutter {
  z-index: 2;
}

/* Status bar styles (if using custom status bar) */
.monaco-error-lens-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  background-color: var(--monaco-editor-background, #1e1e1e);
  color: var(--monaco-editor-foreground, #cccccc);
  border-top: 1px solid var(--monaco-editor-border, #3c3c3c);
  font-size: 12px;
  font-family: var(--monaco-editor-font-family, 'Consolas', 'Monaco', monospace);
}

.monaco-error-lens-status-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.monaco-error-lens-status-item.error {
  color: var(--monaco-error-lens-error-fg);
}

.monaco-error-lens-status-item.warning {
  color: var(--monaco-error-lens-warning-fg);
}

.monaco-error-lens-status-item.info {
  color: var(--monaco-error-lens-info-fg);
}

.monaco-error-lens-status-item.hint {
  color: var(--monaco-error-lens-hint-fg);
}

/* Tooltip styles */
.monaco-error-lens-tooltip {
  position: absolute;
  background-color: var(--monaco-editor-hover-background, #2d2d30);
  color: var(--monaco-editor-hover-foreground, #cccccc);
  border: 1px solid var(--monaco-editor-hover-border, #454545);
  border-radius: 3px;
  padding: 8px 12px;
  font-size: 12px;
  font-family: var(--monaco-editor-font-family, 'Consolas', 'Monaco', monospace);
  max-width: 300px;
  word-wrap: break-word;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Loading states */
.monaco-error-lens-loading {
  opacity: 0.5;
  pointer-events: none;
}

.monaco-error-lens-loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin: -8px 0 0 -8px;
  border: 2px solid transparent;
  border-top-color: var(--monaco-editor-foreground, #cccccc);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Error states */
.monaco-error-lens-error-state {
  background-color: rgba(255, 0, 0, 0.1);
  border: 1px dashed #ff0000;
  border-radius: 3px;
  padding: 4px;
}

.monaco-error-lens-error-message {
  color: #ff0000;
  font-size: 11px;
  font-style: italic;
}