news-analyze/components/DraggableWindow.vue

<script setup lang="ts">
import { useThrottleFn } from "@vueuse/core";

const props = defineProps<{
  title: string;
  initialX?: number;
  initialY?: number;
  width?: string;
  height?: string;
}>();

const emit = defineEmits(["close", "min", "maximize", "restore"]);
const title = computed(() => props.title || "Draggable Window");

const isDragging = ref(false);
const position = ref({
  x:
    props.initialX ||
    Math.floor(window.innerWidth / 2 - parseInt(props.width || "400") / 2),
  y:
    props.initialY ||
    Math.floor(window.innerHeight / 2 - parseInt(props.height || "300") / 2),
});

const offset = ref({ x: 0, y: 0 });

const doDrag = useThrottleFn((e: MouseEvent) => {
  if (!isDragging.value) return;

  requestAnimationFrame(() => {
    position.value = {
      x: Math.max(
        0,
        Math.min(window.innerWidth - 400, e.clientX - offset.value.x),
      ),
      y: Math.max(
        0,
        Math.min(window.innerHeight - 300, e.clientY - offset.value.y),
      ),
    };
  });
}, 16);

const startDrag = (e: MouseEvent) => {
  isDragging.value = true;
  offset.value = {
    x: e.clientX - position.value.x,
    y: e.clientY - position.value.y,
  };
  document.addEventListener("mousemove", doDrag);
  document.addEventListener("mouseup", stopDrag);
};

const stopDrag = () => {
  isDragging.value = false;
  document.removeEventListener("mousemove", doDrag);
  document.removeEventListener("mouseup", stopDrag);
};
</script>

<template>
  <div
    :style="{
      left: `${position.x}px`,
      top: `${position.y}px`,
      width: props.width || '400px',
      height: props.height || '300px',
    }"
    class="fixed bg-white dark:bg-gray-800 rounded-xl shadow-lg overflow-hidden flex flex-col shadow-lg shadow-xl/30"
  >
    <div
      @mousedown="startDrag"
      class="bg-gray-700 p-2 cursor-move flex justify-between items-center flex-shrink-0"
    >
      <h3 class="font-semibold">{{ title }}</h3>
      <div class="flex flex-row gap-1">
        <button
          @click="emit('min')"
          class="p-1 hover:bg-gray-300 dark:hover:bg-gray-600 rounded transition duration-200"
        >
          ━
        </button>
        <button
          @click="emit('maximize')"
          class="p-1 hover:bg-gray-300 dark:hover:bg-gray-600 rounded transition duration-200"
        >
          ⬜
        </button>
        <button
          @click="emit('close')"
          class="p-1 rounded bg-red-500 text-white hover:bg-red-600 transition duration-200"
        >
          ✕
        </button>
      </div>
    </div>
    <div class="p-4 text-black overflow-y-auto flex-grow">
      <slot></slot>
    </div>
  </div>
</template>