Add popup menus for actions

2024-10-01 22:31:51 +02:00
parent 3caca13e5c
commit 88abeaa896
4 changed files with 163 additions and 28 deletions
@@ -0,0 +1,94 @@
+<?php
+
+namespace NoccyLabs\JEdit\Editor;
+
+use NoccyLabs\JEdit\Terminal\Terminal;
+
+class Menu
+{
+    
+    const U_CORNER_TOPLEFT = "\u{250c}";
+    const U_CORNER_TOPRIGHT = "\u{2510}";
+    const U_CORNER_BOTTOMLEFT = "\u{2514}";
+    const U_CORNER_BOTTOMRIGHT = "\u{2518}";
+
+    const U_CORNER_ROUNDED_TOPLEFT = "\u{256d}";
+    const U_CORNER_ROUNDED_TOPRIGHT = "\u{256e}";
+    const U_CORNER_ROUNDED_BOTTOMLEFT = "\u{2570}";
+    const U_CORNER_ROUNDED_BOTTOMRIGHT = "\u{256f}";
+
+    const U_EDGE_HORIZONTAL = "\u{2500}";
+
+    const U_EDGE_VERTICAL = "\u{2502}";
+    const U_EDGE_VERTICAL_SCROLL = "\u{250a}";
+    const U_EDGE_VERTICAL_THUMB = "\u{2503}";
+    const U_EDGE_VERTICAL_LEFT = "\u{2524}";
+    const U_EDGE_VERTICAL_RIGHT = "\u{251c}";
+
+    private int $index = 0;
+
+    public function __construct(private Terminal $terminal, private array $items, private string $title = 'Menu')
+    {
+
+    }
+
+    public function display(int $left, int $top, int $width, int $height = 0, string|int|null $value): mixed
+    {
+
+        if ($height == 0) $height = count($this->items) + 4;
+
+        $this->redraw($left, $top, $width, $height);
+
+        $showing = true;
+        while ($showing) {
+            while (null === ($ch = $this->terminal->readKey())) {
+                usleep(10000);
+            }
+            if (mb_strlen($ch) == 1) {
+                if ($ch == "\x03") {
+                    $showing = false;
+                }
+                if ($ch == "\r") {
+                    return array_keys($this->items)[$this->index];
+                }
+            } else {
+                if ($ch == "k{UP}") {
+                    $this->index--;
+                    if ($this->index < 0) $this->index = count($this->items) - 1;
+                    $this->redraw($left, $top, $width, $height);
+                } elseif ($ch == "k{DOWN}") {
+                    $this->index++;
+                    if ($this->index >= count($this->items)) $this->index = 0;
+                    $this->redraw($left, $top, $width, $height);
+                }
+            }
+        }
+
+
+        return null;
+    }
+
+    private function redraw(int $left, int $top, int $width, int $height) {
+        $visibleItems = $height - 4;
+        // draw head
+        echo "\e[40;37m";
+        $this->terminal
+            ->writeAt($left, $top + 0, self::U_CORNER_ROUNDED_TOPLEFT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_CORNER_ROUNDED_TOPRIGHT)
+            ->writeAt($left, $top + 1, self::U_EDGE_VERTICAL.str_repeat(" ",$width - 2).self::U_EDGE_VERTICAL)
+            ->writeAt($left + 2, $top + 1, "\e[1m" . $this->title . "\e[22m")
+            ->writeAt($left, $top + 2, self::U_EDGE_VERTICAL_RIGHT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_EDGE_VERTICAL_LEFT)
+            ->writeAt($left, $top + $height - 1, self::U_CORNER_BOTTOMLEFT.str_repeat(self::U_EDGE_HORIZONTAL,$width - 2).self::U_CORNER_BOTTOMRIGHT)
+            ;
+        $keys = array_keys($this->items);
+        for ($n = 0; $n < $visibleItems; $n++) {
+            $key = $keys[$n]??null;
+            $item = " " . ($key ? ($this->items[$key]) : null);
+            $item = $item . str_repeat(" ", $width - 2 - mb_strlen($item)) . "\e[40;37m";
+            $item = (($n == $this->index)?"\e[37;44m":"\e[40;37m") . $item;
+            $this->terminal
+                ->writeAt($left, $top + 3 + $n, self::U_EDGE_VERTICAL.$item.self::U_EDGE_VERTICAL_SCROLL);
+        }
+        echo "\e[0m";
+    }
+
+}