feat: 增加基于图片拼图切片平移的验证码

packages/effects/common-ui/src/components/captcha/slider-translate-captcha/index.vue

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+<script setup lang="ts">
+import type {
+  CaptchaVerifyPassingData,
+  SliderCaptchaActionType,
+  SliderRotateVerifyPassingData,
+  SliderTranslateCaptchaProps,
+} from '../types';
+
+import {
+  computed,
+  onMounted,
+  reactive,
+  ref,
+  unref,
+  useTemplateRef,
+  watch,
+} from 'vue';
+
+import { $t } from '@vben/locales';
+
+import SliderCaptcha from '../slider-captcha/index.vue';
+
+const props = withDefaults(defineProps<SliderTranslateCaptchaProps>(), {
+  defaultTip: '',
+  canvasWidth: 420,
+  canvasHeight: 280,
+  squareLength: 42,
+  circleRadius: 10,
+  src: '',
+  diffDistance: 3,
+});
+
+const emit = defineEmits<{
+  success: [CaptchaVerifyPassingData];
+}>();
+
+const PI: number = Math.PI;
+enum CanvasOpr {
+  // eslint-disable-next-line no-unused-vars
+  Clip = 'clip',
+  // eslint-disable-next-line no-unused-vars
+  Fill = 'fill',
+}
+
+const modalValue = defineModel<boolean>({ default: false });
+
+const slideBarRef = useTemplateRef<SliderCaptchaActionType>('slideBarRef');
+const puzzleCanvasRef = useTemplateRef<HTMLCanvasElement>('puzzleCanvasRef');
+const pieceCanvasRef = useTemplateRef<HTMLCanvasElement>('pieceCanvasRef');
+
+const state = reactive({
+  dragging: false,
+  startTime: 0,
+  endTime: 0,
+  pieceX: 0,
+  PieceY: 0,
+  moveDistance: 0,
+  isPassing: false,
+  showTip: false,
+});
+
+const left = ref('0');
+
+const pieceStyle = computed(() => {
+  return {
+    left: left.value,
+  };
+});
+
+function setLeft(val: string) {
+  left.value = val;
+}
+
+const verifyTip = computed(() => {
+  return state.isPassing
+    ? $t('ui.captcha.sliderRotateSuccessTip', [
+        ((state.endTime - state.startTime) / 1000).toFixed(1),
+      ])
+    : $t('ui.captcha.sliderRotateFailTip');
+});
+function handleStart() {
+  state.startTime = Date.now();
+}
+
+function handleDragBarMove(data: SliderRotateVerifyPassingData) {
+  state.dragging = true;
+  const { moveX } = data;
+  state.moveDistance = moveX;
+  setLeft(`${moveX}px`);
+}
+
+function handleDragEnd() {
+  const { pieceX } = state;
+  const { diffDistance } = props;
+
+  if (Math.abs(pieceX - state.moveDistance) >= (diffDistance || 10)) {
+    setLeft('0');
+    state.moveDistance = 0;
+  } else {
+    checkPass();
+  }
+  state.showTip = true;
+  state.dragging = false;
+}
+
+function checkPass() {
+  state.isPassing = true;
+  state.endTime = Date.now();
+}
+
+watch(
+  () => state.isPassing,
+  (isPassing) => {
+    if (isPassing) {
+      const { endTime, startTime } = state;
+      const time = (endTime - startTime) / 1000;
+      emit('success', { isPassing, time: time.toFixed(1) });
+    }
+    modalValue.value = isPassing;
+  },
+);
+
+function resetCanvas() {
+  const { canvasWidth, canvasHeight } = props;
+  const puzzleCanvas = unref(puzzleCanvasRef);
+  const pieceCanvas = unref(pieceCanvasRef);
+  if (!puzzleCanvas || !pieceCanvas) return;
+  pieceCanvas.width = canvasWidth;
+  const puzzleCanvasCtx = puzzleCanvas.getContext('2d');
+  const pieceCanvasCtx = pieceCanvas.getContext('2d');
+  if (!puzzleCanvasCtx || !pieceCanvasCtx) return;
+  puzzleCanvasCtx.clearRect(0, 0, canvasWidth, canvasHeight);
+  pieceCanvasCtx.clearRect(0, 0, canvasWidth, canvasHeight);
+}
+
+function initCanvas() {
+  const { canvasWidth, canvasHeight, squareLength, circleRadius, src } = props;
+  const puzzleCanvas = unref(puzzleCanvasRef);
+  const pieceCanvas = unref(pieceCanvasRef);
+  if (!puzzleCanvas || !pieceCanvas) return;
+  const puzzleCanvasCtx = puzzleCanvas.getContext('2d');
+  const pieceCanvasCtx = pieceCanvas.getContext('2d');
+  if (!puzzleCanvasCtx || !pieceCanvasCtx) return;
+  const img = new Image();
+  img.src = src;
+  img.addEventListener('load', () => {
+    draw(puzzleCanvasCtx, pieceCanvasCtx);
+    puzzleCanvasCtx.drawImage(img, 0, 0, canvasWidth, canvasHeight);
+    pieceCanvasCtx.drawImage(img, 0, 0, canvasWidth, canvasHeight);
+    const pieceLength = squareLength + 2 * circleRadius + 3;
+    const sx = state.pieceX;
+    const sy = state.PieceY - 2 * circleRadius - 1;
+    const imageData = pieceCanvasCtx.getImageData(
+      sx,
+      sy,
+      pieceLength,
+      pieceLength,
+    );
+    pieceCanvas.width = pieceLength;
+    pieceCanvasCtx.putImageData(imageData, 0, sy);
+  });
+}
+
+function getRandomNumberByRange(start: number, end: number) {
+  return Math.round(Math.random() * (end - start) + start);
+}
+
+// 绘制拼图
+function draw(ctx1: CanvasRenderingContext2D, ctx2: CanvasRenderingContext2D) {
+  const { canvasWidth, canvasHeight, squareLength, circleRadius } = props;
+  state.pieceX = getRandomNumberByRange(
+    squareLength + 2 * circleRadius,
+    canvasWidth - (squareLength + 2 * circleRadius),
+  );
+  state.PieceY = getRandomNumberByRange(
+    3 * circleRadius,
+    canvasHeight - (squareLength + 2 * circleRadius),
+  );
+  drawPiece(ctx1, state.pieceX, state.PieceY, CanvasOpr.Fill);
+  drawPiece(ctx2, state.pieceX, state.PieceY, CanvasOpr.Clip);
+}
+
+// 绘制拼图切块
+function drawPiece(
+  ctx: CanvasRenderingContext2D,
+  x: number,
+  y: number,
+  opr: CanvasOpr,
+) {
+  const { squareLength, circleRadius } = props;
+  ctx.beginPath();
+  ctx.moveTo(x, y);
+  ctx.arc(
+    x + squareLength / 2,
+    y - circleRadius + 2,
+    circleRadius,
+    0.72 * PI,
+    2.26 * PI,
+  );
+  ctx.lineTo(x + squareLength, y);
+  ctx.arc(
+    x + squareLength + circleRadius - 2,
+    y + squareLength / 2,
+    circleRadius,
+    1.21 * PI,
+    2.78 * PI,
+  );
+  ctx.lineTo(x + squareLength, y + squareLength);
+  ctx.lineTo(x, y + squareLength);
+  ctx.arc(
+    x + circleRadius - 2,
+    y + squareLength / 2,
+    circleRadius + 0.4,
+    2.76 * PI,
+    1.24 * PI,
+    true,
+  );
+  ctx.lineTo(x, y);
+  ctx.lineWidth = 2;
+  ctx.fillStyle = 'rgba(255, 255, 255, 0.7)';
+  ctx.strokeStyle = 'rgba(255, 255, 255, 0.7)';
+  ctx.stroke();
+  opr === CanvasOpr.Clip ? ctx.clip() : ctx.fill();
+  ctx.globalCompositeOperation = 'destination-over';
+}
+
+function resume() {
+  state.showTip = false;
+  const basicEl = unref(slideBarRef);
+  if (!basicEl) {
+    return;
+  }
+  state.dragging = false;
+  state.isPassing = false;
+  state.pieceX = 0;
+  state.PieceY = 0;
+
+  basicEl.resume();
+  resetCanvas();
+  initCanvas();
+}
+
+onMounted(() => {
+  initCanvas();
+});
+</script>
+
+<template>
+  <div class="relative flex flex-col items-center">
+    <div
+      class="border-border relative flex cursor-pointer overflow-hidden border shadow-md"
+    >
+      <canvas
+        ref="puzzleCanvasRef"
+        :width="canvasWidth"
+        :height="canvasHeight"
+        @click="resume"
+      ></canvas>
+      <canvas
+        ref="pieceCanvasRef"
+        :width="canvasWidth"
+        :height="canvasHeight"
+        :style="pieceStyle"
+        class="absolute"
+        @click="resume"
+      ></canvas>
+      <div
+        class="absolute bottom-3 left-0 z-10 block h-7 w-full text-center text-xs leading-[30px] text-white"
+      >
+        <div
+          v-if="state.showTip"
+          :class="{
+            'bg-success/80': state.isPassing,
+            'bg-destructive/80': !state.isPassing,
+          }"
+        >
+          {{ verifyTip }}
+        </div>
+        <div v-if="!state.dragging" class="bg-black/30">
+          {{ defaultTip || $t('ui.captcha.sliderRotateDefaultTip') }}
+        </div>
+      </div>
+    </div>
+    <SliderCaptcha
+      ref="slideBarRef"
+      v-model="modalValue"
+      class="mt-5"
+      is-slot
+      @end="handleDragEnd"
+      @move="handleDragBarMove"
+      @start="handleStart"
+    >
+      <template v-for="(_, key) in $slots" :key="key" #[key]="slotProps">
+        <slot :name="key" v-bind="slotProps"></slot>
+      </template>
+    </SliderCaptcha>
+  </div>
+</template>

playground/src/views/examples/captcha/slider-translate-captcha.vue

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+<script setup lang="ts">
+import { Page, SliderTranslateCaptcha } from '@vben/common-ui';
+
+import { Card, message } from 'ant-design-vue';
+
+function handleSuccess() {
+  message.success('success!');
+}
+</script>
+
+<template>
+  <Page
+    description="用于前端简单的拼图滑块水平拖动校验场景"
+    title="拼图滑块校验"
+  >
+    <Card class="mb-5" title="基本示例">
+      <div class="flex items-center justify-center p-4">
+        <SliderTranslateCaptcha
+          src="https://unpkg.com/@vbenjs/static-source@0.1.7/source/pro-avatar.webp"
+          :canvas-width="420"
+          :canvas-height="420"
+          @success="handleSuccess"
+        />
+      </div>
+    </Card>
+  </Page>
+</template>