terminal = $terminal;
$this->prefix = $prefix;
$this->items = $items;
$this->selectedIndex = $selectedIndex;
$this->scrollOffset = $scrollOffset;
$this->query = $query;
$this->expanded = $expanded;
}
/**
* {@inheritdoc}
*/
public function render(Frame $frame, Area $area): int
{
if (empty($this->items)) {
$frame->appendLine($this->terminal->format(' (no matches)'));
return 1;
}
$items = \array_map([History::class, 'collapseToSingleLine'], \array_values($this->items));
$prefixWidth = DisplayString::width($this->prefix);
$indent = \str_repeat(' ', $prefixWidth);
$maxWidth = \max(1, $this->terminal->getWidth() - $prefixWidth);
$totalRows = \count($items);
$maxRows = $this->resolveMaxRows($area);
$needsTruncation = $totalRows > $maxRows;
$visibleRows = $needsTruncation ? \max(1, $maxRows - 1) : $totalRows;
$startRow = $needsTruncation ? $this->scrollOffset : 0;
$endRow = \min($totalRows, $startRow + $visibleRows);
$consumed = 0;
for ($row = $startRow; $row < $endRow; $row++) {
$item = DisplayString::truncate($items[$row], $maxWidth, true);
if ($row === $this->selectedIndex) {
$escaped = OutputFormatter::escape($item);
$itemWidth = DisplayString::width($item);
$padding = \max(0, $maxWidth - $itemWidth);
$frame->appendLine($this->terminal->format(
''.$this->prefix.$escaped.\str_repeat(' ', $padding).'',
));
} else {
$frame->appendLine($indent.$this->highlightQuery($item));
}
$consumed++;
}
if ($needsTruncation) {
$text = \sprintf('Items %d to %d of %d', $startRow + 1, $endRow, $totalRows);
$frame->appendLine($this->terminal->format($indent.''.$text.''));
$consumed++;
}
return $consumed;
}
/**
* Resolve the visible-row budget within the given Area.
*
* Caps at half the terminal height in compact (non-expanded) mode.
*/
private function resolveMaxRows(Area $area): int
{
$maxRows = $area->getHeight();
if (!$this->expanded) {
$halfTerminal = (int) \floor($this->terminal->getHeight() / 2);
$maxRows = \min($maxRows, $halfTerminal);
}
return \max(1, $maxRows);
}
/**
* Highlight the first occurrence of the search query in an item.
*/
private function highlightQuery(string $item): string
{
if ($this->query === '') {
return $item;
}
$caseSensitive = History::isSearchCaseSensitive($this->query);
$pos = $caseSensitive
? \mb_strpos($item, $this->query)
: \mb_stripos($item, $this->query);
if ($pos === false) {
return $item;
}
$before = \mb_substr($item, 0, $pos);
$match = \mb_substr($item, $pos, \mb_strlen($this->query));
$after = \mb_substr($item, $pos + \mb_strlen($this->query));
return $before.$this->terminal->format(''.OutputFormatter::escape($match).'').$after;
}
}