workspace/code/fms/fms-vue/src/components/FmsMemoInput.vue

<script setup>
import { computed, nextTick, onBeforeUnmount, onMounted, ref } from "vue";

defineOptions({ inheritAttrs: false });

const props = defineProps({
  modelValue: { type: String, default: "" },
  disabled: { type: Boolean, default: false },
  readonly: { type: Boolean, default: false },
  allowClear: { type: Boolean, default: true },
  maxlength: { type: Number, default: undefined },
  popupWidth: { type: [Number, String], default: 420 },
  popupHeight: { type: [Number, String], default: 180 },
  placement: { type: String, default: "bottomCenter" },
});

const emit = defineEmits(["update:modelValue", "change", "focus", "blur", "openChange"]);

const open = ref(false);
const inputRef = ref(null);
const textareaRef = ref(null);
const editorRef = ref(null);
const triggerWidth = ref(0);

const popoverPlacement = computed(() =>
  props.placement === "bottomCenter" ? "bottom" : props.placement,
);
const popupWidth = computed(() =>
  typeof props.popupWidth === "number" ? `${props.popupWidth}px` : props.popupWidth,
);
const popupHeight = computed(() =>
  typeof props.popupHeight === "number" ? `${props.popupHeight}px` : props.popupHeight,
);
const popupStyles = computed(() => ({
  container: {
    width: popupWidth.value,
    minWidth: triggerWidth.value ? `${triggerWidth.value}px` : undefined,
    maxWidth: "calc(100vw - 24px)",
    padding: "8px",
  },
}));

function updateValue(value) {
  emit("update:modelValue", value ?? "");
}

function onInputChange(event) {
  emit("change", event);
}

async function showEditor() {
  if (props.disabled || open.value) return;

  const inputElement = inputRef.value?.$el ?? inputRef.value;
  triggerWidth.value = inputElement?.getBoundingClientRect?.().width ?? 0;
  open.value = true;
  emit("openChange", true);
  await nextTick();
  textareaRef.value?.focus?.({ cursor: "end" });
}

function onInputFocus(event) {
  emit("focus", event);
  showEditor();
}

function onOpenChange(value) {
  if (value && props.disabled) return;
  open.value = value;
  emit("openChange", value);
}

function closeEditor() {
  if (!open.value) return;
  open.value = false;
  emit("openChange", false);
}

function onDocumentPointerDown(event) {
  if (!open.value) return;

  const inputElement = inputRef.value?.$el ?? inputRef.value;
  const path = event.composedPath?.() ?? [];
  if (path.includes(inputElement) || path.includes(editorRef.value)) return;
  closeEditor();
}

function onTextareaKeydown(event) {
  event.stopPropagation();
  if (event.key === "Escape") {
    event.preventDefault();
    closeEditor();
  }
}

function onInputBlur(event) {
  if (!open.value) emit("blur", event);
}

function onTextareaBlur(event) {
  emit("blur", event);
}

onMounted(() => document.addEventListener("pointerdown", onDocumentPointerDown, true));
onBeforeUnmount(() => document.removeEventListener("pointerdown", onDocumentPointerDown, true));
</script>

<template>
  <a-popover
    :open="open"
    :trigger="[]"
    :placement="popoverPlacement"
    :arrow="false"
    :styles="popupStyles"
    @open-change="onOpenChange"
  >
    <template #content>
      <div ref="editorRef" class="fms-memo-editor" @mousedown.stop @click.stop>
        <a-textarea
          ref="textareaRef"
          :value="modelValue"
          :maxlength="maxlength"
          :placeholder="$attrs.placeholder"
          :disabled="disabled"
          :readonly="readonly"
          :style="{ height: popupHeight, resize: 'both' }"
          @update:value="updateValue"
          @change="onInputChange"
          @keydown="onTextareaKeydown"
          @blur="onTextareaBlur"
        />
      </div>
    </template>

    <a-input
      ref="inputRef"
      v-bind="$attrs"
      class="fms-memo-input"
      :value="modelValue"
      :disabled="disabled"
      :readonly="readonly"
      :allow-clear="allowClear"
      :maxlength="maxlength"
      @update:value="updateValue"
      @change="onInputChange"
      @focus="onInputFocus"
      @blur="onInputBlur"
      @click.stop="showEditor"
      @keydown.stop
    >
      <template v-for="(_, name) in $slots" :key="name" #[name]="slotProps">
        <slot :name="name" v-bind="slotProps || {}" />
      </template>
    </a-input>
  </a-popover>
</template>

<style scoped>
.fms-memo-input {
  width: 100%;
}

.fms-memo-editor {
  width: 100%;
}

.fms-memo-editor :deep(textarea) {
  min-width: 180px;
  min-height: 96px;
}
</style>