/**
 * ldesign v0.2.2
 * (c) 2022年9月20日 swimly
 * @license MIT
 */

import _defineProperty$1 from '@babel/runtime/helpers/defineProperty';
import { defineComponent, ref, computed, onMounted } from '@vue/composition-api';
import { _ as _defineProperty } from '../../chunks/defineProperty-28395935.js';
import { usePrefixClass } from '../../hooks/use-config.js';
import { useContent } from '../../hooks/lnode.js';
import { useMutationObserver } from './hooks.js';
import props from './props.js';
import '../config-provider/useConfig.js';
import '../config-provider/context.js';
import 'lodash';
import '../../chunks/zh_CN.js';
import '../config-provider/type.js';
import 'lodash/isEmpty';
import 'lodash/isFunction';
import 'lodash/camelCase';
import 'lodash/kebabCase';
import '../../hooks/render-lnode.js';
import 'lodash/isString';
import 'lodash/isObject';
import '@babel/runtime/helpers/objectWithoutProperties';

/**
 * LDesignUtility v0.1.1
 * (c) 2022 undefined
 * @license MIT
 */

function ownKeys$1(object, enumerableOnly) {
  var keys = Object.keys(object);

  if (Object.getOwnPropertySymbols) {
    var symbols = Object.getOwnPropertySymbols(object);
    enumerableOnly && (symbols = symbols.filter(function (sym) {
      return Object.getOwnPropertyDescriptor(object, sym).enumerable;
    })), keys.push.apply(keys, symbols);
  }

  return keys;
}

function _objectSpread$1(target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = null != arguments[i] ? arguments[i] : {};
    i % 2 ? ownKeys$1(Object(source), true).forEach(function (key) {
      _defineProperty(target, key, source[key]);
    }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys$1(Object(source)).forEach(function (key) {
      Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
    });
  }

  return target;
}

function generateBase64Url(_ref, onFinish) {
  var width = _ref.width,
      height = _ref.height,
      gapX = _ref.gapX,
      gapY = _ref.gapY,
      offsetLeft = _ref.offsetLeft,
      offsetTop = _ref.offsetTop,
      rotate = _ref.rotate,
      alpha = _ref.alpha,
      watermarkContent = _ref.watermarkContent,
      lineSpace = _ref.lineSpace;
  var canvas = document.createElement("canvas");
  var ctx = canvas.getContext("2d");

  if (!ctx) {
    console.warn("\u5F53\u524D\u73AF\u5883\u4E0D\u652F\u6301Canvas, \u65E0\u6CD5\u7ED8\u5236\u6C34\u5370");
    onFinish("");
    return;
  }

  var ratio = window.devicePixelRatio || 1;
  var canvasWidth = (gapX + width) * ratio;
  var canvasHeight = (gapY + height) * ratio;
  canvas.width = canvasWidth;
  canvas.height = canvasHeight;
  canvas.style.width = "".concat(gapX + width, "px");
  canvas.style.height = "".concat(gapY + height, "px");
  ctx.translate(offsetLeft * ratio, offsetTop * ratio);
  ctx.rotate(Math.PI / 180 * Number(rotate));
  ctx.globalAlpha = alpha;
  var markWidth = width * ratio;
  var markHeight = height * ratio;
  ctx.fillStyle = "transparent";
  ctx.fillRect(0, 0, markWidth, markHeight);
  var contents = Array.isArray(watermarkContent) ? watermarkContent : [_objectSpread$1({}, watermarkContent)];
  var top = 0;
  contents.forEach(function (item) {
    if (item.url) {
      var url = item.url,
          _item$isGrayscale = item.isGrayscale,
          isGrayscale = _item$isGrayscale === void 0 ? false : _item$isGrayscale;
      item.top = top;
      top += height;
      var img = new Image();
      img.crossOrigin = "anonymous";
      img.referrerPolicy = "no-referrer";
      img.src = url;

      img.onload = function () {
        ctx.drawImage(img, 0, item.top * ratio, width * ratio, height * ratio);

        if (isGrayscale) {
          var imgData = ctx.getImageData(0, 0, ctx.canvas.width, ctx.canvas.height);
          var pixels = imgData.data;

          for (var i = 0; i < pixels.length; i += 4) {
            var lightness = (pixels[i] + pixels[i + 1] + pixels[i + 2]) / 3;
            pixels[i] = lightness;
            pixels[i + 1] = lightness;
            pixels[i + 2] = lightness;
          }

          ctx.putImageData(imgData, 0, 0);
        }

        onFinish(canvas.toDataURL());
      };
    } else if (item.text) {
      var text = item.text,
          _item$fontColor = item.fontColor,
          fontColor = _item$fontColor === void 0 ? "rgba(0, 0, 0, 0.1)" : _item$fontColor,
          _item$fontSize = item.fontSize,
          fontSize = _item$fontSize === void 0 ? 16 : _item$fontSize,
          _item$fontWeight = item.fontWeight,
          fontWeight = _item$fontWeight === void 0 ? "normal" : _item$fontWeight;
      item.top = top;
      top += lineSpace;
      var markSize = Number(fontSize) * ratio;
      ctx.font = "normal normal ".concat(fontWeight, " ").concat(markSize, "px/").concat(markHeight, "px undefined");
      ctx.textAlign = "start";
      ctx.textBaseline = "top";
      ctx.fillStyle = fontColor;
      ctx.fillText(text, 0, item.top * ratio);
    }
  });
  onFinish(canvas.toDataURL());
}

/**
 * LDesignUtility v0.1.1
 * (c) 2022 undefined
 * @license MIT
 */
function randomMovingStyle() {
  var align = Math.floor(Math.random() * 4);
  var p1 = Math.floor(Math.random() * 70) + 30;
  var leftTopLimit = 0;
  var bottomLimit = 95;
  var rightLimit = 90;
  var keyframesStyle = "\n  @keyframes watermark {\n    0%   {left: ".concat(align === 1 ? rightLimit : align === 3 ? leftTopLimit : p1, "%; top: ").concat(align === 0 ? leftTopLimit : align === 2 ? bottomLimit : p1, "%;}\n    25% {left: ").concat(align === 0 ? rightLimit : align === 2 ? leftTopLimit : 100 - p1, "%; top: ").concat(align === 1 ? bottomLimit : align === 3 ? leftTopLimit : p1, "%;}\n    50% {left: ").concat(align === 1 ? leftTopLimit : align === 3 ? rightLimit : 100 - p1, "%; top: ").concat(align === 0 ? bottomLimit : align === 2 ? leftTopLimit : 100 - p1, "%;}\n    75% {left: ").concat(align === 0 ? leftTopLimit : align === 2 ? rightLimit : p1, "%; top: ").concat(align === 1 ? leftTopLimit : align === 3 ? bottomLimit : 100 - p1, "%;}\n    100% {left: ").concat(align === 1 ? rightLimit : align === 3 ? leftTopLimit : p1, "%; top: ").concat(align === 0 ? leftTopLimit : align === 2 ? bottomLimit : p1, "%;}\n  }\n  ");
  return keyframesStyle;
}

/**
 * LDesignUtility v0.1.1
 * (c) 2022 undefined
 * @license MIT
 */
var injectStyle = function injectStyle(style) {
  var styleElement = document.createElement("style");
  var styleSheet = null;
  document.head.appendChild(styleElement);
  styleSheet = styleElement.sheet;
  styleSheet.insertRule(style, styleSheet.cssRules.length);
};

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty$1(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
var _Watermark = defineComponent({
  name: "LWatermark",
  props: props,
  setup: function setup(props2) {
    var backgroundImage = ref("");
    var watermarkRef = ref();
    var watermarkContentRef = ref();
    var parent = ref();
    var gapX = computed(function () {
      return props2.movable ? 0 : props2.x;
    });
    var gapY = computed(function () {
      return props2.movable ? 0 : props2.y;
    });
    var rotate = computed(function () {
      return props2.movable ? 0 : props2.rotate;
    });
    var backgroundRepeat = computed(function () {
      if (props2.movable) {
        return "no-repeat";
      }

      return props2.isRepeat ? "repeat" : "no-repeat";
    });
    var offsetLeft = computed(function () {
      var _props2$offset;

      return ((_props2$offset = props2.offset) === null || _props2$offset === void 0 ? void 0 : _props2$offset[0]) || gapX.value / 2;
    });
    var offsetTop = computed(function () {
      var _props2$offset2;

      return ((_props2$offset2 = props2.offset) === null || _props2$offset2 === void 0 ? void 0 : _props2$offset2[1]) || gapY.value / 2;
    });
    var bgImageOptions = {
      width: props2.width,
      height: props2.height,
      rotate: rotate.value,
      lineSpace: props2.lineSpace,
      alpha: props2.alpha,
      gapX: gapX.value,
      gapY: gapY.value,
      watermarkContent: props2.watermarkContent,
      offsetLeft: offsetLeft.value,
      offsetTop: offsetTop.value
    };
    onMounted(function () {
      var _watermarkRef$value;

      generateBase64Url(bgImageOptions, function (base64Url) {
        backgroundImage.value = base64Url;
      });
      parent.value = (_watermarkRef$value = watermarkRef.value) === null || _watermarkRef$value === void 0 ? void 0 : _watermarkRef$value.parentElement;
      var keyframesStyle = randomMovingStyle();
      injectStyle(keyframesStyle);
      useMutationObserver(parent.value, function (mutations) {
        if (props2.removable) return;
        mutations.forEach(function (mutation) {
          if (mutation.type === "childList") {
            var removeNodes = mutation.removedNodes;
            removeNodes.forEach(function (node) {
              var element = node;

              if (element === watermarkRef.value) {
                parent.value.appendChild(element);
              }

              if (element === watermarkContentRef.value) {
                watermarkRef.value.appendChild(element);
              }
            });
          }
        });
      }, {
        attributes: true,
        childList: true,
        characterData: true,
        subtree: true
      });
    });
    return {
      gapX: gapX,
      gapY: gapY,
      backgroundRepeat: backgroundRepeat,
      backgroundImage: backgroundImage,
      watermarkRef: watermarkRef,
      watermarkContentRef: watermarkContentRef,
      bgImageOptions: bgImageOptions
    };
  },
  watch: {
    watermarkContent: function watermarkContent(content) {
      var _this = this;

      generateBase64Url(_objectSpread(_objectSpread({}, this.bgImageOptions), {}, {
        watermarkContent: content
      }), function (base64Url) {
        _this.backgroundImage = base64Url;
      });
    }
  },
  render: function render() {
    var h = arguments[0];
    var COMPONENT_NAME = usePrefixClass("watermark");
    var renderContent = useContent();
    return h("div", {
      "style": {
        position: "relative",
        overflow: "hidden",
        width: "100%"
      },
      "class": COMPONENT_NAME.value,
      "ref": "watermarkRef"
    }, [renderContent("default", "content"), h("div", {
      "ref": "watermarkContentRef",
      "style": {
        zIndex: this.zIndex,
        position: "absolute",
        left: 0,
        right: 0,
        top: 0,
        bottom: 0,
        width: "100%",
        height: "100%",
        backgroundSize: "".concat(this.gapX + this.width, "px"),
        pointerEvents: "none",
        backgroundRepeat: this.backgroundRepeat,
        backgroundImage: "url('".concat(this.backgroundImage, "')"),
        animation: this.movable ? "watermark infinite ".concat(this.moveInterval * 4 / 60, "s") : "none"
      }
    })]);
  }
});

export { _Watermark as default };
//# sourceMappingURL=watermark.js.map
