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svgedit/editor/pathseg.js

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/* eslint-disable no-var, no-redeclare */
// SVGPathSeg API polyfill
// https://github.com/progers/pathseg
//
// This is a drop-in replacement for the SVGPathSeg and SVGPathSegList APIs that were removed from
// SVG2 (https://lists.w3.org/Archives/Public/www-svg/2015Jun/0044.html), including the latest spec
// changes which were implemented in Firefox 43 and Chrome 46.
(function () {
'use strict';
if (!('SVGPathSeg' in window)) {
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSeg
window.SVGPathSeg = function (type, typeAsLetter, owningPathSegList) {
this.pathSegType = type;
this.pathSegTypeAsLetter = typeAsLetter;
this._owningPathSegList = owningPathSegList;
};
window.SVGPathSeg.prototype.classname = 'SVGPathSeg';
window.SVGPathSeg.PATHSEG_UNKNOWN = 0;
window.SVGPathSeg.PATHSEG_CLOSEPATH = 1;
window.SVGPathSeg.PATHSEG_MOVETO_ABS = 2;
window.SVGPathSeg.PATHSEG_MOVETO_REL = 3;
window.SVGPathSeg.PATHSEG_LINETO_ABS = 4;
window.SVGPathSeg.PATHSEG_LINETO_REL = 5;
window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS = 6;
window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL = 7;
window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS = 8;
window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL = 9;
window.SVGPathSeg.PATHSEG_ARC_ABS = 10;
window.SVGPathSeg.PATHSEG_ARC_REL = 11;
window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS = 12;
window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL = 13;
window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS = 14;
window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL = 15;
window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = 16;
window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL = 17;
window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = 18;
window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = 19;
// Notify owning PathSegList on any changes so they can be synchronized back to the path element.
window.SVGPathSeg.prototype._segmentChanged = function () {
if (this._owningPathSegList) {
this._owningPathSegList.segmentChanged(this);
}
};
window.SVGPathSegClosePath = function (owningPathSegList) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CLOSEPATH, 'z', owningPathSegList);
};
window.SVGPathSegClosePath.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegClosePath.prototype.toString = function () { return '[object SVGPathSegClosePath]'; };
window.SVGPathSegClosePath.prototype._asPathString = function () { return this.pathSegTypeAsLetter; };
window.SVGPathSegClosePath.prototype.clone = function () { return new window.SVGPathSegClosePath(undefined); };
window.SVGPathSegMovetoAbs = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_ABS, 'M', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegMovetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegMovetoAbs.prototype.toString = function () { return '[object SVGPathSegMovetoAbs]'; };
window.SVGPathSegMovetoAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegMovetoAbs.prototype.clone = function () { return new window.SVGPathSegMovetoAbs(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegMovetoAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegMovetoRel = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_MOVETO_REL, 'm', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegMovetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegMovetoRel.prototype.toString = function () { return '[object SVGPathSegMovetoRel]'; };
window.SVGPathSegMovetoRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegMovetoRel.prototype.clone = function () { return new window.SVGPathSegMovetoRel(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegMovetoRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegMovetoRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoAbs = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_ABS, 'L', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegLinetoAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoAbs.prototype.toString = function () { return '[object SVGPathSegLinetoAbs]'; };
window.SVGPathSegLinetoAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegLinetoAbs.prototype.clone = function () { return new window.SVGPathSegLinetoAbs(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegLinetoAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoRel = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_REL, 'l', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegLinetoRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoRel.prototype.toString = function () { return '[object SVGPathSegLinetoRel]'; };
window.SVGPathSegLinetoRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegLinetoRel.prototype.clone = function () { return new window.SVGPathSegLinetoRel(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegLinetoRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegLinetoRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoCubicAbs = function (owningPathSegList, x, y, x1, y1, x2, y2) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS, 'C', owningPathSegList);
this._x = x;
this._y = y;
this._x1 = x1;
this._y1 = y1;
this._x2 = x2;
this._y2 = y2;
};
window.SVGPathSegCurvetoCubicAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoCubicAbs.prototype.toString = function () { return '[object SVGPathSegCurvetoCubicAbs]'; };
window.SVGPathSegCurvetoCubicAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x1 + ' ' + this._y1 + ' ' + this._x2 + ' ' + this._y2 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoCubicAbs.prototype.clone = function () { return new window.SVGPathSegCurvetoCubicAbs(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); };
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'x1', { get: function () { return this._x1; }, set: function (x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'y1', { get: function () { return this._y1; }, set: function (y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'x2', { get: function () { return this._x2; }, set: function (x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicAbs.prototype, 'y2', { get: function () { return this._y2; }, set: function (y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoCubicRel = function (owningPathSegList, x, y, x1, y1, x2, y2) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL, 'c', owningPathSegList);
this._x = x;
this._y = y;
this._x1 = x1;
this._y1 = y1;
this._x2 = x2;
this._y2 = y2;
};
window.SVGPathSegCurvetoCubicRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoCubicRel.prototype.toString = function () { return '[object SVGPathSegCurvetoCubicRel]'; };
window.SVGPathSegCurvetoCubicRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x1 + ' ' + this._y1 + ' ' + this._x2 + ' ' + this._y2 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoCubicRel.prototype.clone = function () { return new window.SVGPathSegCurvetoCubicRel(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); };
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'x1', { get: function () { return this._x1; }, set: function (x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'y1', { get: function () { return this._y1; }, set: function (y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'x2', { get: function () { return this._x2; }, set: function (x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicRel.prototype, 'y2', { get: function () { return this._y2; }, set: function (y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoQuadraticAbs = function (owningPathSegList, x, y, x1, y1) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS, 'Q', owningPathSegList);
this._x = x;
this._y = y;
this._x1 = x1;
this._y1 = y1;
};
window.SVGPathSegCurvetoQuadraticAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoQuadraticAbs.prototype.toString = function () { return '[object SVGPathSegCurvetoQuadraticAbs]'; };
window.SVGPathSegCurvetoQuadraticAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x1 + ' ' + this._y1 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoQuadraticAbs.prototype.clone = function () { return new window.SVGPathSegCurvetoQuadraticAbs(undefined, this._x, this._y, this._x1, this._y1); };
Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, 'x1', { get: function () { return this._x1; }, set: function (x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticAbs.prototype, 'y1', { get: function () { return this._y1; }, set: function (y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoQuadraticRel = function (owningPathSegList, x, y, x1, y1) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL, 'q', owningPathSegList);
this._x = x;
this._y = y;
this._x1 = x1;
this._y1 = y1;
};
window.SVGPathSegCurvetoQuadraticRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoQuadraticRel.prototype.toString = function () { return '[object SVGPathSegCurvetoQuadraticRel]'; };
window.SVGPathSegCurvetoQuadraticRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x1 + ' ' + this._y1 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoQuadraticRel.prototype.clone = function () { return new window.SVGPathSegCurvetoQuadraticRel(undefined, this._x, this._y, this._x1, this._y1); };
Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, 'x1', { get: function () { return this._x1; }, set: function (x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticRel.prototype, 'y1', { get: function () { return this._y1; }, set: function (y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegArcAbs = function (owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_ABS, 'A', owningPathSegList);
this._x = x;
this._y = y;
this._r1 = r1;
this._r2 = r2;
this._angle = angle;
this._largeArcFlag = largeArcFlag;
this._sweepFlag = sweepFlag;
};
window.SVGPathSegArcAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegArcAbs.prototype.toString = function () { return '[object SVGPathSegArcAbs]'; };
window.SVGPathSegArcAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._r1 + ' ' + this._r2 + ' ' + this._angle + ' ' + (this._largeArcFlag ? '1' : '0') + ' ' + (this._sweepFlag ? '1' : '0') + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegArcAbs.prototype.clone = function () { return new window.SVGPathSegArcAbs(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); };
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'r1', { get: function () { return this._r1; }, set: function (r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'r2', { get: function () { return this._r2; }, set: function (r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'angle', { get: function () { return this._angle; }, set: function (angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'largeArcFlag', { get: function () { return this._largeArcFlag; }, set: function (largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcAbs.prototype, 'sweepFlag', { get: function () { return this._sweepFlag; }, set: function (sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegArcRel = function (owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_ARC_REL, 'a', owningPathSegList);
this._x = x;
this._y = y;
this._r1 = r1;
this._r2 = r2;
this._angle = angle;
this._largeArcFlag = largeArcFlag;
this._sweepFlag = sweepFlag;
};
window.SVGPathSegArcRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegArcRel.prototype.toString = function () { return '[object SVGPathSegArcRel]'; };
window.SVGPathSegArcRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._r1 + ' ' + this._r2 + ' ' + this._angle + ' ' + (this._largeArcFlag ? '1' : '0') + ' ' + (this._sweepFlag ? '1' : '0') + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegArcRel.prototype.clone = function () { return new window.SVGPathSegArcRel(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); };
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'r1', { get: function () { return this._r1; }, set: function (r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'r2', { get: function () { return this._r2; }, set: function (r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'angle', { get: function () { return this._angle; }, set: function (angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'largeArcFlag', { get: function () { return this._largeArcFlag; }, set: function (largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegArcRel.prototype, 'sweepFlag', { get: function () { return this._sweepFlag; }, set: function (sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoHorizontalAbs = function (owningPathSegList, x) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS, 'H', owningPathSegList);
this._x = x;
};
window.SVGPathSegLinetoHorizontalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoHorizontalAbs.prototype.toString = function () { return '[object SVGPathSegLinetoHorizontalAbs]'; };
window.SVGPathSegLinetoHorizontalAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x; };
window.SVGPathSegLinetoHorizontalAbs.prototype.clone = function () { return new window.SVGPathSegLinetoHorizontalAbs(undefined, this._x); };
Object.defineProperty(window.SVGPathSegLinetoHorizontalAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoHorizontalRel = function (owningPathSegList, x) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL, 'h', owningPathSegList);
this._x = x;
};
window.SVGPathSegLinetoHorizontalRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoHorizontalRel.prototype.toString = function () { return '[object SVGPathSegLinetoHorizontalRel]'; };
window.SVGPathSegLinetoHorizontalRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x; };
window.SVGPathSegLinetoHorizontalRel.prototype.clone = function () { return new window.SVGPathSegLinetoHorizontalRel(undefined, this._x); };
Object.defineProperty(window.SVGPathSegLinetoHorizontalRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoVerticalAbs = function (owningPathSegList, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS, 'V', owningPathSegList);
this._y = y;
};
window.SVGPathSegLinetoVerticalAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoVerticalAbs.prototype.toString = function () { return '[object SVGPathSegLinetoVerticalAbs]'; };
window.SVGPathSegLinetoVerticalAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._y; };
window.SVGPathSegLinetoVerticalAbs.prototype.clone = function () { return new window.SVGPathSegLinetoVerticalAbs(undefined, this._y); };
Object.defineProperty(window.SVGPathSegLinetoVerticalAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegLinetoVerticalRel = function (owningPathSegList, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL, 'v', owningPathSegList);
this._y = y;
};
window.SVGPathSegLinetoVerticalRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegLinetoVerticalRel.prototype.toString = function () { return '[object SVGPathSegLinetoVerticalRel]'; };
window.SVGPathSegLinetoVerticalRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._y; };
window.SVGPathSegLinetoVerticalRel.prototype.clone = function () { return new window.SVGPathSegLinetoVerticalRel(undefined, this._y); };
Object.defineProperty(window.SVGPathSegLinetoVerticalRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoCubicSmoothAbs = function (owningPathSegList, x, y, x2, y2) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS, 'S', owningPathSegList);
this._x = x;
this._y = y;
this._x2 = x2;
this._y2 = y2;
};
window.SVGPathSegCurvetoCubicSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoCubicSmoothAbs.prototype.toString = function () { return '[object SVGPathSegCurvetoCubicSmoothAbs]'; };
window.SVGPathSegCurvetoCubicSmoothAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x2 + ' ' + this._y2 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoCubicSmoothAbs.prototype.clone = function () { return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, this._x, this._y, this._x2, this._y2); };
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, 'x2', { get: function () { return this._x2; }, set: function (x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothAbs.prototype, 'y2', { get: function () { return this._y2; }, set: function (y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoCubicSmoothRel = function (owningPathSegList, x, y, x2, y2) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL, 's', owningPathSegList);
this._x = x;
this._y = y;
this._x2 = x2;
this._y2 = y2;
};
window.SVGPathSegCurvetoCubicSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoCubicSmoothRel.prototype.toString = function () { return '[object SVGPathSegCurvetoCubicSmoothRel]'; };
window.SVGPathSegCurvetoCubicSmoothRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x2 + ' ' + this._y2 + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoCubicSmoothRel.prototype.clone = function () { return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, this._x, this._y, this._x2, this._y2); };
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, 'x2', { get: function () { return this._x2; }, set: function (x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoCubicSmoothRel.prototype, 'y2', { get: function () { return this._y2; }, set: function (y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoQuadraticSmoothAbs = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, 'T', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.toString = function () { return '[object SVGPathSegCurvetoQuadraticSmoothAbs]'; };
window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype.clone = function () { return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothAbs.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
window.SVGPathSegCurvetoQuadraticSmoothRel = function (owningPathSegList, x, y) {
window.SVGPathSeg.call(this, window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, 't', owningPathSegList);
this._x = x;
this._y = y;
};
window.SVGPathSegCurvetoQuadraticSmoothRel.prototype = Object.create(window.SVGPathSeg.prototype);
window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.toString = function () { return '[object SVGPathSegCurvetoQuadraticSmoothRel]'; };
window.SVGPathSegCurvetoQuadraticSmoothRel.prototype._asPathString = function () { return this.pathSegTypeAsLetter + ' ' + this._x + ' ' + this._y; };
window.SVGPathSegCurvetoQuadraticSmoothRel.prototype.clone = function () { return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, this._x, this._y); };
Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, 'x', { get: function () { return this._x; }, set: function (x) { this._x = x; this._segmentChanged(); }, enumerable: true });
Object.defineProperty(window.SVGPathSegCurvetoQuadraticSmoothRel.prototype, 'y', { get: function () { return this._y; }, set: function (y) { this._y = y; this._segmentChanged(); }, enumerable: true });
// Add createSVGPathSeg* functions to window.SVGPathElement.
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-Interfacewindow.SVGPathElement.
window.SVGPathElement.prototype.createSVGPathSegClosePath = function () { return new window.SVGPathSegClosePath(undefined); };
window.SVGPathElement.prototype.createSVGPathSegMovetoAbs = function (x, y) { return new window.SVGPathSegMovetoAbs(undefined, x, y); };
window.SVGPathElement.prototype.createSVGPathSegMovetoRel = function (x, y) { return new window.SVGPathSegMovetoRel(undefined, x, y); };
window.SVGPathElement.prototype.createSVGPathSegLinetoAbs = function (x, y) { return new window.SVGPathSegLinetoAbs(undefined, x, y); };
window.SVGPathElement.prototype.createSVGPathSegLinetoRel = function (x, y) { return new window.SVGPathSegLinetoRel(undefined, x, y); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicAbs = function (x, y, x1, y1, x2, y2) { return new window.SVGPathSegCurvetoCubicAbs(undefined, x, y, x1, y1, x2, y2); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicRel = function (x, y, x1, y1, x2, y2) { return new window.SVGPathSegCurvetoCubicRel(undefined, x, y, x1, y1, x2, y2); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticAbs = function (x, y, x1, y1) { return new window.SVGPathSegCurvetoQuadraticAbs(undefined, x, y, x1, y1); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticRel = function (x, y, x1, y1) { return new window.SVGPathSegCurvetoQuadraticRel(undefined, x, y, x1, y1); };
window.SVGPathElement.prototype.createSVGPathSegArcAbs = function (x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new window.SVGPathSegArcAbs(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); };
window.SVGPathElement.prototype.createSVGPathSegArcRel = function (x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new window.SVGPathSegArcRel(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); };
window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalAbs = function (x) { return new window.SVGPathSegLinetoHorizontalAbs(undefined, x); };
window.SVGPathElement.prototype.createSVGPathSegLinetoHorizontalRel = function (x) { return new window.SVGPathSegLinetoHorizontalRel(undefined, x); };
window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalAbs = function (y) { return new window.SVGPathSegLinetoVerticalAbs(undefined, y); };
window.SVGPathElement.prototype.createSVGPathSegLinetoVerticalRel = function (y) { return new window.SVGPathSegLinetoVerticalRel(undefined, y); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothAbs = function (x, y, x2, y2) { return new window.SVGPathSegCurvetoCubicSmoothAbs(undefined, x, y, x2, y2); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothRel = function (x, y, x2, y2) { return new window.SVGPathSegCurvetoCubicSmoothRel(undefined, x, y, x2, y2); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothAbs = function (x, y) { return new window.SVGPathSegCurvetoQuadraticSmoothAbs(undefined, x, y); };
window.SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothRel = function (x, y) { return new window.SVGPathSegCurvetoQuadraticSmoothRel(undefined, x, y); };
if (!('getPathSegAtLength' in window.SVGPathElement.prototype)) {
// Add getPathSegAtLength to SVGPathElement.
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-__svg__SVGPathElement__getPathSegAtLength
// This polyfill requires SVGPathElement.getTotalLength to implement the distance-along-a-path algorithm.
window.SVGPathElement.prototype.getPathSegAtLength = function (distance) {
if (distance === undefined || !isFinite(distance)) {
throw new Error('Invalid arguments.');
}
var measurementElement = document.createElementNS('http://www.w3.org/2000/svg', 'path');
measurementElement.setAttribute('d', this.getAttribute('d'));
var lastPathSegment = measurementElement.pathSegList.numberOfItems - 1;
// If the path is empty, return 0.
if (lastPathSegment <= 0) {
return 0;
}
do {
measurementElement.pathSegList.removeItem(lastPathSegment);
if (distance > measurementElement.getTotalLength()) {
break;
}
lastPathSegment--;
} while (lastPathSegment > 0);
return lastPathSegment;
};
}
}
// Checking for SVGPathSegList in window checks for the case of an implementation without the
// SVGPathSegList API.
// The second check for appendItem is specific to Firefox 59+ which removed only parts of the
// SVGPathSegList API (e.g., appendItem). In this case we need to re-implement the entire API
// so the polyfill data (i.e., _list) is used throughout.
if (!('SVGPathSegList' in window) || !('appendItem' in window.SVGPathSegList.prototype)) {
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSegList
window.SVGPathSegList = function (pathElement) {
this._pathElement = pathElement;
this._list = this._parsePath(this._pathElement.getAttribute('d'));
// Use a MutationObserver to catch changes to the path's "d" attribute.
this._mutationObserverConfig = { 'attributes': true, 'attributeFilter': ['d'] };
this._pathElementMutationObserver = new MutationObserver(this._updateListFromPathMutations.bind(this));
this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
};
window.SVGPathSegList.prototype.classname = 'SVGPathSegList';
Object.defineProperty(window.SVGPathSegList.prototype, 'numberOfItems', {
get: function () {
this._checkPathSynchronizedToList();
return this._list.length;
},
enumerable: true
});
// Add the pathSegList accessors to window.SVGPathElement.
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGAnimatedPathData
Object.defineProperty(window.SVGPathElement.prototype, 'pathSegList', {
get: function () {
if (!this._pathSegList) {
this._pathSegList = new window.SVGPathSegList(this);
}
return this._pathSegList;
},
enumerable: true
});
// FIXME: The following are not implemented and simply return window.SVGPathElement.pathSegList.
Object.defineProperty(window.SVGPathElement.prototype, 'normalizedPathSegList', { get: function () { return this.pathSegList; }, enumerable: true });
Object.defineProperty(window.SVGPathElement.prototype, 'animatedPathSegList', { get: function () { return this.pathSegList; }, enumerable: true });
Object.defineProperty(window.SVGPathElement.prototype, 'animatedNormalizedPathSegList', { get: function () { return this.pathSegList; }, enumerable: true });
// Process any pending mutations to the path element and update the list as needed.
// This should be the first call of all public functions and is needed because
// MutationObservers are not synchronous so we can have pending asynchronous mutations.
window.SVGPathSegList.prototype._checkPathSynchronizedToList = function () {
this._updateListFromPathMutations(this._pathElementMutationObserver.takeRecords());
};
window.SVGPathSegList.prototype._updateListFromPathMutations = function (mutationRecords) {
if (!this._pathElement) {
return;
}
var hasPathMutations = false;
mutationRecords.forEach(function (record) {
if (record.attributeName === 'd') {
hasPathMutations = true;
}
});
if (hasPathMutations) {
this._list = this._parsePath(this._pathElement.getAttribute('d'));
}
};
// Serialize the list and update the path's 'd' attribute.
window.SVGPathSegList.prototype._writeListToPath = function () {
this._pathElementMutationObserver.disconnect();
this._pathElement.setAttribute('d', window.SVGPathSegList._pathSegArrayAsString(this._list));
this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
};
// When a path segment changes the list needs to be synchronized back to the path element.
window.SVGPathSegList.prototype.segmentChanged = function (pathSeg) {
this._writeListToPath();
};
window.SVGPathSegList.prototype.clear = function () {
this._checkPathSynchronizedToList();
this._list.forEach(function (pathSeg) {
pathSeg._owningPathSegList = null;
});
this._list = [];
this._writeListToPath();
};
window.SVGPathSegList.prototype.initialize = function (newItem) {
this._checkPathSynchronizedToList();
this._list = [newItem];
newItem._owningPathSegList = this;
this._writeListToPath();
return newItem;
};
window.SVGPathSegList.prototype._checkValidIndex = function (index) {
if (isNaN(index) || index < 0 || index >= this.numberOfItems) {
throw new Error('INDEX_SIZE_ERR');
}
};
window.SVGPathSegList.prototype.getItem = function (index) {
this._checkPathSynchronizedToList();
this._checkValidIndex(index);
return this._list[index];
};
window.SVGPathSegList.prototype.insertItemBefore = function (newItem, index) {
this._checkPathSynchronizedToList();
// Spec: If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list.
if (index > this.numberOfItems) {
index = this.numberOfItems;
}
if (newItem._owningPathSegList) {
// SVG2 spec says to make a copy.
newItem = newItem.clone();
}
this._list.splice(index, 0, newItem);
newItem._owningPathSegList = this;
this._writeListToPath();
return newItem;
};
window.SVGPathSegList.prototype.replaceItem = function (newItem, index) {
this._checkPathSynchronizedToList();
if (newItem._owningPathSegList) {
// SVG2 spec says to make a copy.
newItem = newItem.clone();
}
this._checkValidIndex(index);
this._list[index] = newItem;
newItem._owningPathSegList = this;
this._writeListToPath();
return newItem;
};
window.SVGPathSegList.prototype.removeItem = function (index) {
this._checkPathSynchronizedToList();
this._checkValidIndex(index);
var item = this._list[index];
this._list.splice(index, 1);
this._writeListToPath();
return item;
};
window.SVGPathSegList.prototype.appendItem = function (newItem) {
this._checkPathSynchronizedToList();
if (newItem._owningPathSegList) {
// SVG2 spec says to make a copy.
newItem = newItem.clone();
}
this._list.push(newItem);
newItem._owningPathSegList = this;
// TODO: Optimize this to just append to the existing attribute.
this._writeListToPath();
return newItem;
};
window.SVGPathSegList._pathSegArrayAsString = function (pathSegArray) {
var string = '';
var first = true;
pathSegArray.forEach(function (pathSeg) {
if (first) {
first = false;
string += pathSeg._asPathString();
} else {
string += ' ' + pathSeg._asPathString();
}
});
return string;
};
// This closely follows SVGPathParser::parsePath from Source/core/svg/SVGPathParser.cpp.
window.SVGPathSegList.prototype._parsePath = function (string) {
if (!string || string.length === 0) {
return [];
}
var owningPathSegList = this;
var Builder = function () {
this.pathSegList = [];
};
Builder.prototype.appendSegment = function (pathSeg) {
this.pathSegList.push(pathSeg);
};
var Source = function (string) {
this._string = string;
this._currentIndex = 0;
this._endIndex = this._string.length;
this._previousCommand = window.SVGPathSeg.PATHSEG_UNKNOWN;
this._skipOptionalSpaces();
};
Source.prototype._isCurrentSpace = function () {
var character = this._string[this._currentIndex];
return character <= ' ' && (character === ' ' || character === '\n' || character === '\t' || character === '\r' || character === '\f');
};
Source.prototype._skipOptionalSpaces = function () {
while (this._currentIndex < this._endIndex && this._isCurrentSpace()) {
this._currentIndex++;
}
return this._currentIndex < this._endIndex;
};
Source.prototype._skipOptionalSpacesOrDelimiter = function () {
if (this._currentIndex < this._endIndex && !this._isCurrentSpace() && this._string.charAt(this._currentIndex) !== ',') {
return false;
}
if (this._skipOptionalSpaces()) {
if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) === ',') {
this._currentIndex++;
this._skipOptionalSpaces();
}
}
return this._currentIndex < this._endIndex;
};
Source.prototype.hasMoreData = function () {
return this._currentIndex < this._endIndex;
};
Source.prototype.peekSegmentType = function () {
var lookahead = this._string[this._currentIndex];
return this._pathSegTypeFromChar(lookahead);
};
Source.prototype._pathSegTypeFromChar = function (lookahead) {
switch (lookahead) {
case 'Z':
case 'z':
return window.SVGPathSeg.PATHSEG_CLOSEPATH;
case 'M':
return window.SVGPathSeg.PATHSEG_MOVETO_ABS;
case 'm':
return window.SVGPathSeg.PATHSEG_MOVETO_REL;
case 'L':
return window.SVGPathSeg.PATHSEG_LINETO_ABS;
case 'l':
return window.SVGPathSeg.PATHSEG_LINETO_REL;
case 'C':
return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS;
case 'c':
return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL;
case 'Q':
return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS;
case 'q':
return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL;
case 'A':
return window.SVGPathSeg.PATHSEG_ARC_ABS;
case 'a':
return window.SVGPathSeg.PATHSEG_ARC_REL;
case 'H':
return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS;
case 'h':
return window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL;
case 'V':
return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS;
case 'v':
return window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL;
case 'S':
return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS;
case 's':
return window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL;
case 'T':
return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS;
case 't':
return window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL;
default:
return window.SVGPathSeg.PATHSEG_UNKNOWN;
}
};
Source.prototype._nextCommandHelper = function (lookahead, previousCommand) {
// Check for remaining coordinates in the current command.
if ((lookahead === '+' || lookahead === '-' || lookahead === '.' || (lookahead >= '0' && lookahead <= '9')) && previousCommand !== window.SVGPathSeg.PATHSEG_CLOSEPATH) {
if (previousCommand === window.SVGPathSeg.PATHSEG_MOVETO_ABS) {
return window.SVGPathSeg.PATHSEG_LINETO_ABS;
}
if (previousCommand === window.SVGPathSeg.PATHSEG_MOVETO_REL) {
return window.SVGPathSeg.PATHSEG_LINETO_REL;
}
return previousCommand;
}
return window.SVGPathSeg.PATHSEG_UNKNOWN;
};
Source.prototype.initialCommandIsMoveTo = function () {
// If the path is empty it is still valid, so return true.
if (!this.hasMoreData()) {
return true;
}
var command = this.peekSegmentType();
// Path must start with moveTo.
return command === window.SVGPathSeg.PATHSEG_MOVETO_ABS || command === window.SVGPathSeg.PATHSEG_MOVETO_REL;
};
// Parse a number from an SVG path. This very closely follows genericParseNumber(...) from Source/core/svg/SVGParserUtilities.cpp.
// Spec: https://www.w3.org/TR/SVG11/single-page.html#paths-PathDataBNF
Source.prototype._parseNumber = function () {
var exponent = 0;
var integer = 0;
var frac = 1;
var decimal = 0;
var sign = 1;
var expsign = 1;
var startIndex = this._currentIndex;
this._skipOptionalSpaces();
// Read the sign.
if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) === '+') {
this._currentIndex++;
} else if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) === '-') {
this._currentIndex++;
sign = -1;
}
if (this._currentIndex === this._endIndex || ((this._string.charAt(this._currentIndex) < '0' || this._string.charAt(this._currentIndex) > '9') && this._string.charAt(this._currentIndex) !== '.')) {
// The first character of a number must be one of [0-9+-.].
return undefined;
}
// Read the integer part, build right-to-left.
var startIntPartIndex = this._currentIndex;
while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= '0' && this._string.charAt(this._currentIndex) <= '9') {
this._currentIndex++; // Advance to first non-digit.
}
if (this._currentIndex !== startIntPartIndex) {
var scanIntPartIndex = this._currentIndex - 1;
var multiplier = 1;
while (scanIntPartIndex >= startIntPartIndex) {
integer += multiplier * (this._string.charAt(scanIntPartIndex--) - '0');
multiplier *= 10;
}
}
// Read the decimals.
if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) === '.') {
this._currentIndex++;
// There must be a least one digit following the .
if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < '0' || this._string.charAt(this._currentIndex) > '9') {
return undefined;
}
while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= '0' && this._string.charAt(this._currentIndex) <= '9') {
frac *= 10;
decimal += (this._string.charAt(this._currentIndex) - '0') / frac;
this._currentIndex += 1;
}
}
// Read the exponent part.
if (this._currentIndex !== startIndex && this._currentIndex + 1 < this._endIndex && (this._string.charAt(this._currentIndex) === 'e' || this._string.charAt(this._currentIndex) === 'E') && (this._string.charAt(this._currentIndex + 1) !== 'x' && this._string.charAt(this._currentIndex + 1) !== 'm')) {
this._currentIndex++;
// Read the sign of the exponent.
if (this._string.charAt(this._currentIndex) === '+') {
this._currentIndex++;
} else if (this._string.charAt(this._currentIndex) === '-') {
this._currentIndex++;
expsign = -1;
}
// There must be an exponent.
if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < '0' || this._string.charAt(this._currentIndex) > '9') {
return undefined;
}
while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= '0' && this._string.charAt(this._currentIndex) <= '9') {
exponent *= 10;
exponent += (this._string.charAt(this._currentIndex) - '0');
this._currentIndex++;
}
}
var number = integer + decimal;
number *= sign;
if (exponent) {
number *= Math.pow(10, expsign * exponent);
}
if (startIndex === this._currentIndex) {
return undefined;
}
this._skipOptionalSpacesOrDelimiter();
return number;
};
Source.prototype._parseArcFlag = function () {
if (this._currentIndex >= this._endIndex) {
return undefined;
}
var flag = false;
var flagChar = this._string.charAt(this._currentIndex++);
if (flagChar === '0') {
flag = false;
} else if (flagChar === '1') {
flag = true;
} else {
return undefined;
}
this._skipOptionalSpacesOrDelimiter();
return flag;
};
Source.prototype.parseSegment = function () {
var lookahead = this._string[this._currentIndex];
var command = this._pathSegTypeFromChar(lookahead);
if (command === window.SVGPathSeg.PATHSEG_UNKNOWN) {
// Possibly an implicit command. Not allowed if this is the first command.
if (this._previousCommand === window.SVGPathSeg.PATHSEG_UNKNOWN) {
return null;
}
command = this._nextCommandHelper(lookahead, this._previousCommand);
if (command === window.SVGPathSeg.PATHSEG_UNKNOWN) {
return null;
}
} else {
this._currentIndex++;
}
this._previousCommand = command;
switch (command) {
case window.SVGPathSeg.PATHSEG_MOVETO_REL:
return new window.SVGPathSegMovetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_MOVETO_ABS:
return new window.SVGPathSegMovetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_REL:
return new window.SVGPathSegLinetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_ABS:
return new window.SVGPathSegLinetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:
return new window.SVGPathSegLinetoHorizontalRel(owningPathSegList, this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:
return new window.SVGPathSegLinetoHorizontalAbs(owningPathSegList, this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:
return new window.SVGPathSegLinetoVerticalRel(owningPathSegList, this._parseNumber());
case window.SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:
return new window.SVGPathSegLinetoVerticalAbs(owningPathSegList, this._parseNumber());
case window.SVGPathSeg.PATHSEG_CLOSEPATH:
this._skipOptionalSpaces();
return new window.SVGPathSegClosePath(owningPathSegList);
case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoCubicRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoCubicAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoCubicSmoothRel(owningPathSegList, points.x, points.y, points.x2, points.y2);
case window.SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoCubicSmoothAbs(owningPathSegList, points.x, points.y, points.x2, points.y2);
case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoQuadraticRel(owningPathSegList, points.x, points.y, points.x1, points.y1);
case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegCurvetoQuadraticAbs(owningPathSegList, points.x, points.y, points.x1, points.y1);
case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:
return new window.SVGPathSegCurvetoQuadraticSmoothRel(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:
return new window.SVGPathSegCurvetoQuadraticSmoothAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
case window.SVGPathSeg.PATHSEG_ARC_REL:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegArcRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
case window.SVGPathSeg.PATHSEG_ARC_ABS:
var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
return new window.SVGPathSegArcAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
default:
throw new Error('Unknown path seg type.');
}
};
var builder = new Builder();
var source = new Source(string);
if (!source.initialCommandIsMoveTo()) {
return [];
}
while (source.hasMoreData()) {
var pathSeg = source.parseSegment();
if (!pathSeg) {
return [];
}
builder.appendSegment(pathSeg);
}
return builder.pathSegList;
};
}
}());
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