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/*** module: node_modules/absol-acomp/js/HRuler.js ***/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

require("../css/hruler.css");

var _Dom = _interopRequireDefault(require("absol/src/HTML5/Dom"));

var _ACore = _interopRequireDefault(require("../ACore"));

var _AElement = _interopRequireDefault(require("absol/src/HTML5/AElement"));

var _noop = _interopRequireDefault(require("absol/src/Code/noop"));

var _Object = require("absol/src/DataStructure/Object");

var _ResizeSystem = _interopRequireDefault(require("absol/src/HTML5/ResizeSystem"));


var _ = _ACore.default._;
var $ = _ACore.default.$;
/***
 * @extends AElement
 * @constructor
 */

function HRuler() {
  this.$attachHook = _('attachhook').on('attached', () => {
    this.requestUpdateSize = this.update.bind(this);

    _ResizeSystem.default.add(this.$attachHook);

    this.requestUpdateSize();
  }).addTo(this);
  this.$attachHook.requestRevokeResource = this.revokeResource.bind(this);
  this.$lines = [];
  this.$numbers = [];
  this._viewingNumberCount = 0;
  this._viewingLineCount = 0;
  this._spacing = 10;
  this._major = 10;
  this.$measureTarget = null;
  this._valueFloat = 'left';
  /**
   * @type {number}
   * @name major
   * @memberof HRuler#
   */

  /**
   * @type {number}
   * @name spacing
   * @memberof HRuler#
   */

  /**
   * @type {boolean}
   * @name inverse
   * @memberof HRuler#
   */
}

HRuler.tag = 'hruler';

HRuler.render = function () {
  return _({
    class: 'as-hruler'
  });
};

HRuler.prototype.measureElement = function (elt) {
  if (typeof elt == "string") elt = $(elt);
  this.$measureTarget = elt;
  this.update();
};

HRuler.prototype.update = function () {
  var fontSize = this.getFontSize();
  var measureBound;
  var bound = this.getBoundingClientRect();
  if (!bound.width || !bound.height) return;
  var contentBound = {
    left: bound.left + 1,
    right: bound.right - 1,
    top: bound.top + 1,
    bottom: bound.bottom - 1,
    width: bound.width - 2,
    height: bound.height - 2
  };

  if (this.$measureTarget) {
    measureBound = this.$measureTarget.getBoundingClientRect();
  } else {
    measureBound = contentBound;
  }

  var startOffset = (measureBound[this._valueFloat] - contentBound[this._valueFloat]) * (this.inverse ? -1 : 1) % this._spacing;
  if (startOffset < 0) startOffset += this._spacing;
  var lineIndexOffset = Math.round(((contentBound[this._valueFloat] - measureBound[this._valueFloat]) * (this.inverse ? -1 : 1) + startOffset) / this._spacing);
  var lineCount = Math.floor((contentBound.width - startOffset) / this._spacing) + 1;
  lineCount = Math.max(0, lineCount);

  while (this.$lines.length < lineCount) {
    this.$lines.push(_('.as-hruler-line'));
  }

  var i;
  var lineElt;

  for (i = 0; i < lineCount; ++i) {
    lineElt = this.$lines[i];

    if ((i + lineIndexOffset) % this._major === 0) {
      lineElt.addClass('major');
    } else {
      lineElt.removeClass('major');
    }

    lineElt.addStyle(this._valueFloat, startOffset + this._spacing * i - 0.5 + 'px');
  }

  while (this._viewingLineCount < lineCount) {
    this.$lines[this._viewingLineCount++].addTo(this);
  }

  while (this._viewingLineCount > lineCount) {
    this.$lines[--this._viewingLineCount].remove();
  }

  var numberCount = Math.floor((lineCount + lineIndexOffset - 1) / this._major) - Math.ceil(lineIndexOffset / this._major) + 1;

  while (this.$numbers.length < numberCount) {
    this.$numbers.push(_('.as-hruler-major-number'));
  }

  var numberElt;
  var number;
  var majorStartOfset = startOffset;

  if (lineIndexOffset > 0) {
    majorStartOfset += (this._major - lineIndexOffset % this._spacing) * this._spacing;
  } else {
    majorStartOfset += (this._major - (this._spacing + lineIndexOffset % this._spacing)) * this._spacing;
  }

  for (i = 0; i < numberCount; ++i) {
    number = (Math.ceil(lineIndexOffset / this._major) + i) * this._spacing * this._major;
    numberElt = this.$numbers[i];

    if (numberElt.__cacheNumber__ != number) {
      numberElt.__cacheNumber__ = number;
      numberElt.innerHTML = number + '';
    }

    numberElt.addStyle(this._valueFloat, majorStartOfset + this._major * i * this._spacing - 0.7 * 2.5 * fontSize + 'px');
  }

  while (this._viewingNumberCount < numberCount) {
    this.$numbers[this._viewingNumberCount++].addTo(this);
  }

  while (this._viewingNumberCount > numberCount) {
    this.$numbers[--this._viewingNumberCount].remove();
  }
};

HRuler.prototype.revokeResource = function () {
  this.$attachHook.cancelWaiting();
  this.$measureTarget = null;
  (0, _Object.revokeResource)(this.$lines);
  (0, _Object.revokeResource)(this.$numbers);
  this.clearChild();
  this.revokeResource = _noop.default;
};

HRuler.property = {};
HRuler.property.major = {
  set: function (value) {
    if (value > 0) {
      this._major = value;
      this.update();
    }
  },
  get: function () {
    return this._major;
  }
};
HRuler.property.spacing = {
  set: function (value) {
    if (value > 0) {
      this._spacing = value;
      this.update();
    }
  },
  get: function () {
    return this._spacing;
  }
};
HRuler.property.inverse = {
  set: function (value) {
    this._valueFloat = value ? 'right' : 'left';
    this.update();
  },
  get: function () {
    return this._valueFloat === 'right';
  }
};

_ACore.default.install(HRuler);

var _default = HRuler;
exports.default = _default;