Overleaf/services/web/frontend/stylesheets/app/editor/pdf.less

.pdf .toolbar.toolbar-pdf {
  .toolbar-small-mixin;
  .toolbar-alt-mixin;
  padding-right: 5px;
  margin-left: 0;
  .auto-compile-status {
    color: white;
    margin-right: (@line-height-computed / 2);
    i {
      color: @brand-danger;
    }
  }
  .auto-compile-status when (@is-overleaf-light = true) {
    color: @ol-blue-gray-3;
  }
}

.toolbar-pdf-orphan,
.toolbar-pdf-left,
.toolbar-pdf-right,
.toolbar-pdf-controls {
  display: flex;
  align-items: center;
  align-self: stretch;
}

.toolbar-pdf-orphan,
.toolbar-pdf-controls {
  flex: 1 1 100%;
}

.toolbar-pdf-controls {
  margin-right: 4px;
  justify-content: flex-end;
}

.toolbar-pdf-right {
  flex: 1;
  justify-content: flex-end;
}

.toolbar-pdf-orphan {
  justify-content: center;
  color: @toolbar-btn-color;
  .btn {
    margin-left: @margin-xs;
  }
}

.btn-toggle-logs {
  &:focus,
  &:active:focus {
    outline: none;
  }
}

.pdf-toolbar-btn {
  display: inline-block;
  color: @toolbar-btn-color;
  background-color: transparent;
  padding: 4px 2px;
  line-height: 1;
  height: 24px;
  border-radius: @border-radius-base;

  &:hover,
  &:active,
  &:focus {
    color: @toolbar-btn-color;
  }

  &:hover {
    &:not(:disabled) {
      background-color: @pdf-toolbar-btn-hover-color;
    }
  }

  .label {
    position: absolute;
    top: 0;
    right: 0;
    padding: 0.15em 0.6em 0.2em;
    font-size: 60%;
    pointer-events: none;
  }

  &.log-btn {
    border: none;
    margin-right: 3px;

    &.active {
      color: white;
      background-color: @link-color;
      box-shadow: @toolbar-icon-btn-hover-boxshadow;
      opacity: 0.65;

      &:hover {
        &:not(:disabled) {
          background-color: transparent;
          color: @toolbar-btn-color;
        }
      }
    }

    &:focus {
      outline: none;
    }
  }
}

.pdf {
  background-color: @pdf-bg;
}

.pdf-viewer,
.pdf-errors,
.pdf-uncompiled {
  .full-size;
  top: @pdf-top-offset;
}

.pdf-errors,
.pdf-uncompiled,
.pdf-validation-problems {
  padding: @line-height-computed / 2;
}

.pdf-uncompiled {
  .fa {
    color: @blue;
  }
}

.toolbar-text {
  padding-left: @padding-xs;
}

.pdf-viewer {
  iframe {
    width: 100%;
    height: 100%;
    border: none;
  }
  .pdfjs-viewer {
    .full-size;
    background-color: @pdfjs-bg;
    overflow: scroll;
    .canvasWrapper > canvas,
    div.pdf-canvas {
      background: white;
      box-shadow: @pdf-page-shadow-color 0px 0px 10px;
    }
    div.pdf-canvas.pdfng-empty {
      background-color: white;
    }
    div.pdf-canvas.pdfng-loading {
      background-color: white;
    }
    .page-container {
      margin: 10px auto;
      padding: 0 10px;
      box-sizing: content-box;
      user-select: none;
    }
    .page {
      box-sizing: content-box;
      margin-left: auto;
      margin-right: auto;
      box-shadow: 0 0 8px #bbb;
      border: none;
      margin-top: 10px;
      margin-bottom: 10px;
    }
    .pdfjs-viewer-inner {
      position: absolute;
      overflow-y: scroll;
      width: 100%;
      height: 100%;
      -webkit-font-smoothing: initial;
      -moz-osx-font-smoothing: initial;
      /* fix review-panel overflow issue, see: https://github.com/overleaf/internal/issues/6781#issuecomment-1112708638 */
      .pdfViewer {
        min-height: 100%;
      }
    }
    &:focus-within {
      outline: none;
    }
    /* Avoids https://github.com/mozilla/pdf.js/issues/13840 in Chrome */
    .textLayer br::selection {
      background: transparent;
    }
  }
  .progress-thin {
    position: absolute;
    top: -2px;
    height: 3px;
    left: 0;
    right: 0;
    .progress-bar {
      height: 100%;
      background-color: @link-color;
    }
  }
}

.pdfjs-viewer-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  width: 100%;
}

.pdfjs-zoom-controls {
  border-left: 1px solid rgba(125, 125, 125, 0.3);
}

.pdfjs-toolbar-buttons {
  display: flex;
  gap: 8px;
  margin-left: 8px;
  margin-right: 8px;
}

.pdfjs-toolbar-button {
  padding: 2px !important;
  display: flex;
  align-items: center;

  &:hover {
    color: @toolbar-btn-color;
  }
}

.pdfjs-zoom-dropdown-button {
  width: 60px;
  text-align: right;
  font-size: 14px;
  font-weight: normal;

  .caret {
    margin-left: 4px;
  }
}

.pdfjs-zoom-dropdown-mac-shortcut-char {
  display: inline-block;
  width: 1em;
  text-align: center;
}

.pdfjs-custom-zoom-menu-item {
  a:hover {
    background-color: initial !important;
    color: initial !important;
    cursor: initial !important;
  }

  &.disabled {
    a {
      color: initial !important;
    }
  }
}

.pdfjs-page-number-input {
  color: @toolbar-btn-color;
  font-size: 14px;
  padding: 8px 8px 8px 0;
  display: flex;
  align-items: center;
  gap: 4px;

  input {
    color: initial;
    border: 1px solid @neutral-60;
    width: 32px;
    height: 24px;
    border-radius: @border-radius-base;
    text-align: center;
  }
}

.pdfjs-viewer-controls-small {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pdfjs-toolbar-popover-button {
  padding: 2px !important;
  display: flex;
  align-items: center;
}

.pdfjs-toolbar-popover {
  background-color: @editor-toolbar-bg;
  border-radius: 4px;

  .arrow {
    display: none;
  }

  button {
    background-color: transparent;
    color: @toolbar-btn-color;
  }

  .popover-content {
    display: flex;
    align-items: center;
    padding: 0;
  }
}

// The new viewer UI has overflow on the inner element,
// so disable the overflow on the outer element
.pdf-viewer .pdfjs-viewer.pdfjs-viewer-outer {
  overflow: hidden;
}

:fullscreen {
  .pdfViewer {
    min-height: auto !important;
  }

  .pdfjs-viewer-inner {
    overflow-y: hidden !important;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

.synctex-controls {
  margin-right: -8px;
  position: absolute;
  z-index: @synctex-controls-z-index;
  padding: @synctex-controls-padding;
  top: 68px;
}

.synctex-control:not(.detach-synctex-control) {
  @ol-synctex-control-size: 24px;
  align-items: center;
  display: flex;
  justify-content: center;
  font-size: 1em;
  margin-bottom: @ol-synctex-control-size / 2;
  width: @ol-synctex-control-size;
  height: @ol-synctex-control-size;
  border-radius: @ol-synctex-control-size / 2;
  padding: 0 0 2px;
  background-color: fade(@btn-default-bg, 80%);
  transition: background 0.15s ease;
  color: white;
  border-color: transparent;

  &:focus:not(:focus-visible) {
    outline: none;
  }

  &[disabled] {
    opacity: 1;
    background-color: fade(@btn-default-bg, 60%);
  }
}

.synctex-control {
  > .synctex-control-icon {
    display: inline-block;
    font: normal normal normal 14px/1 FontAwesome;
    font-size: inherit;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  > .synctex-spin-icon {
    margin-top: 2px;
  }
}

.editor-dark {
  .pdfjs-viewer {
    background-color: lighten(@editor-dark-background-color, 10%);
  }
  .pdf .toolbar {
    .toolbar-right a {
      i {
        border-color: @gray;
      }
      &:hover {
        i {
          border-color: @gray-light;
        }
      }
    }
  }
}

.keyboard-tooltip {
  .tooltip-inner {
    max-width: none;
  }
}

.keyboard-shortcut {
  white-space: nowrap;
}

@keyframes expand-feedback-area {
  from {
    max-height: 0;
  }

  to {
    max-height: 500px;
  }
}

.card-hint:extend(.card-thin) {
  margin-top: 10px;
  padding-bottom: 7px;
  cursor: default;

  &-icon-container {
    background: currentColor;
    width: 2.5rem;
    height: 2.5rem;
    font-size: 1.5rem;
    text-align: center;
    border-radius: 50%;
    float: left;
    margin-right: 10px;

    .fa {
      color: #fff;
    }

    .alert-danger & {
      color: @state-danger-border;
    }

    .alert-warning & {
      color: @state-warning-border;
    }

    .alert-info & {
      color: @state-info-border;
    }
  }

  &-text,
  &-feedback-label {
    color: @log-hints-color;
    font-size: 0.9rem;
    margin-bottom: 20px;
  }

  &-text {
    min-height: 35px;
  }

  &-feedback-label {
    font-size: inherit;
    margin-right: 0.5em;
    margin-bottom: 0;
    font-weight: normal;
  }

  &-ext-link,
  &-feedback {
    display: inline-block;
    font-size: 0.8rem;
  }

  &-footer a,
  &-text a {
    .alert-danger & {
      color: @state-danger-text;
    }

    .alert-warning & {
      color: @state-warning-text;
    }

    .alert-info & {
      color: @state-info-text;
    }
  }

  &-feedback {
    color: @log-hints-color;
    float: right;
  }

  &-extra-feedback {
    color: @log-hints-color;
    font-size: 0.8rem;
    margin-top: 10px;
    padding-bottom: 5px;
    animation: 0.5s ease-out expand-feedback-area;
    overflow: hidden;

    &-label {
      margin: 5px 0 10px;
      padding-top: 5px;
      border-top: solid 1px @gray-lighter;
    }

    .radio {
      margin: 5px;
    }

    textarea {
      font-size: 0.8rem;
      margin-bottom: 10px;
      padding: 5px;
    }

    input[type='radio'] {
      margin-top: 2px;
    }
  }

  & + p {
    margin-top: 20px;
  }
}

.files-dropdown-container {
  .pull-right();
  position: relative;
}

.files-dropdown {
  display: inline-block;
}

@editor-and-logs-pane-toolbars-height: @toolbar-small-height + @toolbar-height;
@btn-small-height: (@padding-small-vertical * 2)+
  (@font-size-small * @line-height-small); // 5px * 2 + 14px * 1.5 = 31px

#dropdown-files-logs-pane-list {
  overflow-y: auto;
  .dropdown-header {
    white-space: nowrap;
  }
  max-height: calc(
    ~'100vh - ' @editor-and-logs-pane-toolbars-height ~' - ' @btn-small-height
      ~' - ' @margin-md
  );
}