svgedit/dist/extensions/ext-arrows.js

var svgEditorExtension_arrows = (function () {
  'use strict';

  var asyncToGenerator = function (fn) {
    return function () {
      var gen = fn.apply(this, arguments);
      return new Promise(function (resolve, reject) {
        function step(key, arg) {
          try {
            var info = gen[key](arg);
            var value = info.value;
          } catch (error) {
            reject(error);
            return;
          }

          if (info.done) {
            resolve(value);
          } else {
            return Promise.resolve(value).then(function (value) {
              step("next", value);
            }, function (err) {
              step("throw", err);
            });
          }
        }

        return step("next");
      });
    };
  };

  /* globals jQuery */
  /**
   * ext-arrows.js
   *
   * @license MIT
   *
   * @copyright 2010 Alexis Deveria
   *
   */
  var extArrows = {
    name: 'arrows',
    init: function () {
      var _ref = asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2(S) {
        var strings, svgEditor, svgCanvas, $, addElem, nonce, prefix, selElems, arrowprefix, randomizeIds, setArrowNonce, unsetArrowNonce, pathdata, getLinked, showPanel, resetMarker, addMarker, setArrow, colorChanged, contextTools;
        return regeneratorRuntime.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                colorChanged = function colorChanged(elem) {
                  var color = elem.getAttribute('stroke');
                  var mtypes = ['start', 'mid', 'end'];
                  var defs = S.findDefs();

                  $.each(mtypes, function (i, type) {
                    var marker = getLinked(elem, 'marker-' + type);
                    if (!marker) {
                      return;
                    }

                    var curColor = $(marker).children().attr('fill');
                    var curD = $(marker).children().attr('d');
                    if (curColor === color) {
                      return;
                    }

                    var allMarkers = $(defs).find('marker');
                    var newMarker = null;
                    // Different color, check if already made
                    allMarkers.each(function () {
                      var attrs = $(this).children().attr(['fill', 'd']);
                      if (attrs.fill === color && attrs.d === curD) {
                        // Found another marker with this color and this path
                        newMarker = this;
                      }
                    });

                    if (!newMarker) {
                      // Create a new marker with this color
                      var lastId = marker.id;
                      var dir = lastId.includes('_fw') ? 'fw' : 'bk';

                      newMarker = addMarker(dir, type, arrowprefix + dir + allMarkers.length);

                      $(newMarker).children().attr('fill', color);
                    }

                    $(elem).attr('marker-' + type, 'url(#' + newMarker.id + ')');

                    // Check if last marker can be removed
                    var remove = true;
                    $(S.svgcontent).find('line, polyline, path, polygon').each(function () {
                      var elem = this;
                      $.each(mtypes, function (j, mtype) {
                        if ($(elem).attr('marker-' + mtype) === 'url(#' + marker.id + ')') {
                          remove = false;
                          return remove;
                        }
                      });
                      if (!remove) {
                        return false;
                      }
                    });

                    // Not found, so can safely remove
                    if (remove) {
                      $(marker).remove();
                    }
                  });
                };

                setArrow = function setArrow() {
                  resetMarker();

                  var type = this.value;
                  if (type === 'none') {
                    return;
                  }

                  // Set marker on element
                  var dir = 'fw';
                  if (type === 'mid_bk') {
                    type = 'mid';
                    dir = 'bk';
                  } else if (type === 'both') {
                    addMarker('bk', type);
                    svgCanvas.changeSelectedAttribute('marker-start', 'url(#' + pathdata.bk.id + ')');
                    type = 'end';
                    dir = 'fw';
                  } else if (type === 'start') {
                    dir = 'bk';
                  }

                  addMarker(dir, type);
                  svgCanvas.changeSelectedAttribute('marker-' + type, 'url(#' + pathdata[dir].id + ')');
                  S.call('changed', selElems);
                };

                addMarker = function addMarker(dir, type, id) {
                  // TODO: Make marker (or use?) per arrow type, since refX can be different
                  id = id || arrowprefix + dir;

                  var data = pathdata[dir];

                  if (type === 'mid') {
                    data.refx = 5;
                  }

                  var marker = S.getElem(id);
                  if (!marker) {
                    marker = addElem({
                      element: 'marker',
                      attr: {
                        viewBox: '0 0 10 10',
                        id: id,
                        refY: 5,
                        markerUnits: 'strokeWidth',
                        markerWidth: 5,
                        markerHeight: 5,
                        orient: 'auto',
                        style: 'pointer-events:none' // Currently needed for Opera
                      }
                    });
                    var arrow = addElem({
                      element: 'path',
                      attr: {
                        d: data.d,
                        fill: '#000000'
                      }
                    });
                    marker.append(arrow);
                    S.findDefs().append(marker);
                  }

                  marker.setAttribute('refX', data.refx);

                  return marker;
                };

                resetMarker = function resetMarker() {
                  var el = selElems[0];
                  el.removeAttribute('marker-start');
                  el.removeAttribute('marker-mid');
                  el.removeAttribute('marker-end');
                };

                showPanel = function showPanel(on) {
                  $('#arrow_panel').toggle(on);
                  if (on) {
                    var el = selElems[0];
                    var end = el.getAttribute('marker-end');
                    var start = el.getAttribute('marker-start');
                    var mid = el.getAttribute('marker-mid');
                    var val = void 0;
                    if (end && start) {
                      val = 'both';
                    } else if (end) {
                      val = 'end';
                    } else if (start) {
                      val = 'start';
                    } else if (mid) {
                      val = 'mid';
                      if (mid.includes('bk')) {
                        val = 'mid_bk';
                      }
                    }

                    if (!start && !mid && !end) {
                      val = 'none';
                    }

                    $('#arrow_list').val(val);
                  }
                };

                getLinked = function getLinked(elem, attr) {
                  var str = elem.getAttribute(attr);
                  if (!str) {
                    return null;
                  }
                  var m = str.match(/\(#(.*)\)/);
                  if (!m || m.length !== 2) {
                    return null;
                  }
                  return S.getElem(m[1]);
                };

                unsetArrowNonce = function unsetArrowNonce(window) {
                  randomizeIds = false;
                  arrowprefix = prefix;
                  pathdata.fw.id = arrowprefix + 'fw';
                  pathdata.bk.id = arrowprefix + 'bk';
                };

                setArrowNonce = function setArrowNonce(window, n) {
                  randomizeIds = true;
                  arrowprefix = prefix + n + '_';
                  pathdata.fw.id = arrowprefix + 'fw';
                  pathdata.bk.id = arrowprefix + 'bk';
                };

                _context2.next = 10;
                return S.importLocale();

              case 10:
                strings = _context2.sent;
                svgEditor = this;
                svgCanvas = svgEditor.canvas;
                $ = jQuery;
                // {svgcontent} = S,
                addElem = S.addSVGElementFromJson, nonce = S.nonce, prefix = 'se_arrow_';
                selElems = void 0, arrowprefix = void 0, randomizeIds = S.randomize_ids;


                svgCanvas.bind('setnonce', setArrowNonce);
                svgCanvas.bind('unsetnonce', unsetArrowNonce);

                if (randomizeIds) {
                  arrowprefix = prefix + nonce + '_';
                } else {
                  arrowprefix = prefix;
                }

                pathdata = {
                  fw: { d: 'm0,0l10,5l-10,5l5,-5l-5,-5z', refx: 8, id: arrowprefix + 'fw' },
                  bk: { d: 'm10,0l-10,5l10,5l-5,-5l5,-5z', refx: 2, id: arrowprefix + 'bk' }
                };
                contextTools = [{
                  type: 'select',
                  panel: 'arrow_panel',
                  id: 'arrow_list',
                  defval: 'none',
                  events: {
                    change: setArrow
                  }
                }];
                return _context2.abrupt('return', {
                  name: strings.name,
                  context_tools: strings.contextTools.map(function (contextTool, i) {
                    return Object.assign(contextTools[i], contextTool);
                  }),
                  callback: function callback() {
                    $('#arrow_panel').hide();
                    // Set ID so it can be translated in locale file
                    $('#arrow_list option')[0].id = 'connector_no_arrow';
                  },
                  addLangData: function () {
                    var _ref3 = asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee(_ref2) {
                      var lang = _ref2.lang,
                          importLocale = _ref2.importLocale;
                      var strings;
                      return regeneratorRuntime.wrap(function _callee$(_context) {
                        while (1) {
                          switch (_context.prev = _context.next) {
                            case 0:
                              _context.next = 2;
                              return importLocale();

                            case 2:
                              strings = _context.sent;
                              return _context.abrupt('return', {
                                data: strings.langList
                              });

                            case 4:
                            case 'end':
                              return _context.stop();
                          }
                        }
                      }, _callee, this);
                    }));

                    function addLangData(_x2) {
                      return _ref3.apply(this, arguments);
                    }

                    return addLangData;
                  }(),
                  selectedChanged: function selectedChanged(opts) {
                    // Use this to update the current selected elements
                    selElems = opts.elems;

                    var markerElems = ['line', 'path', 'polyline', 'polygon'];
                    var i = selElems.length;
                    while (i--) {
                      var elem = selElems[i];
                      if (elem && markerElems.includes(elem.tagName)) {
                        if (opts.selectedElement && !opts.multiselected) {
                          showPanel(true);
                        } else {
                          showPanel(false);
                        }
                      } else {
                        showPanel(false);
                      }
                    }
                  },
                  elementChanged: function elementChanged(opts) {
                    var elem = opts.elems[0];
                    if (elem && (elem.getAttribute('marker-start') || elem.getAttribute('marker-mid') || elem.getAttribute('marker-end'))) {
                      // const start = elem.getAttribute('marker-start');
                      // const mid = elem.getAttribute('marker-mid');
                      // const end = elem.getAttribute('marker-end');
                      // Has marker, so see if it should match color
                      colorChanged(elem);
                    }
                  }
                });

              case 22:
              case 'end':
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function init(_x) {
        return _ref.apply(this, arguments);
      }

      return init;
    }()
  };

  return extArrows;

}());