/**
* @license Highcharts JS v6.0.4 (2017-12-15)
* Old IE (v6, v7, v8) module for Highcharts v6+.
*
* (c) 2010-2017 Highsoft AS
* Author: Torstein Honsi
*
* License: www.highcharts.com/license
*/
'use strict';
(function(factory) {
if (typeof module === 'object' && module.exports) {
module.exports = factory;
} else {
factory(Highcharts);
}
}(function(Highcharts) {
(function(H) {
/**
* (c) 2010-2017 Torstein Honsi
*
* Support for old IE browsers (6, 7 and 8) in Highcharts v6+.
*
* License: www.highcharts.com/license
*/
/* eslint max-len: 0 */
var VMLRenderer,
VMLRendererExtension,
VMLElement,
Chart = H.Chart,
createElement = H.createElement,
css = H.css,
defined = H.defined,
deg2rad = H.deg2rad,
discardElement = H.discardElement,
doc = H.doc,
each = H.each,
erase = H.erase,
extend = H.extend,
extendClass = H.extendClass,
isArray = H.isArray,
isNumber = H.isNumber,
isObject = H.isObject,
merge = H.merge,
noop = H.noop,
pick = H.pick,
pInt = H.pInt,
svg = H.svg,
SVGElement = H.SVGElement,
SVGRenderer = H.SVGRenderer,
win = H.win,
wrap = H.wrap;
/**
* Path to the pattern image required by VML browsers in order to
* draw radial gradients.
*
* @type {String}
* @apioption global.VMLRadialGradientURL
* @default {highcharts}
* http://code.highcharts.com/{version}/gfx/vml-radial-gradient.png
* @default {highstock}
* http://code.highcharts.com/highstock/{version}/gfx/vml-radial-gradient.png
* @default {highmaps}
* http://code.highcharts.com/{version}/gfx/vml-radial-gradient.png
* @since 2.3.0
*/
H.getOptions().global.VMLRadialGradientURL =
'http://code.highcharts.com/6.0.4/gfx/vml-radial-gradient.png';
// Utilites
if (doc && !doc.defaultView) {
H.getStyle = function(el, prop) {
var val,
alias = {
width: 'clientWidth',
height: 'clientHeight'
}[prop];
if (el.style[prop]) {
return H.pInt(el.style[prop]);
}
if (prop === 'opacity') {
prop = 'filter';
}
// Getting the rendered width and height
if (alias) {
el.style.zoom = 1;
return Math.max(el[alias] - 2 * H.getStyle(el, 'padding'), 0);
}
val = el.currentStyle[prop.replace(/\-(\w)/g, function(a, b) {
return b.toUpperCase();
})];
if (prop === 'filter') {
val = val.replace(
/alpha\(opacity=([0-9]+)\)/,
function(a, b) {
return b / 100;
}
);
}
return val === '' ? 1 : H.pInt(val);
};
}
if (!Array.prototype.forEach) {
H.forEachPolyfill = function(fn, ctx) {
var i = 0,
len = this.length;
for (; i < len; i++) {
if (fn.call(ctx, this[i], i, this) === false) {
return i;
}
}
};
}
if (!Array.prototype.indexOf) {
H.indexOfPolyfill = function(arr) {
var len,
i = 0;
if (arr) {
len = arr.length;
for (; i < len; i++) {
if (arr[i] === this) {
return i;
}
}
}
return -1;
};
}
if (!Array.prototype.filter) {
H.filterPolyfill = function(fn) {
var ret = [],
i = 0,
length = this.length;
for (; i < length; i++) {
if (fn(this[i], i)) {
ret.push(this[i]);
}
}
return ret;
};
}
if (!Object.prototype.keys) {
H.keysPolyfill = function(obj) {
var result = [],
hasOwnProperty = Object.prototype.hasOwnProperty,
prop;
for (prop in obj) {
if (hasOwnProperty.call(obj, prop)) {
result.push(prop);
}
}
return result;
};
}
if (!Array.prototype.reduce) {
H.reducePolyfill = function(func, initialValue) {
var context = this,
accumulator = initialValue || {},
len = this.length;
for (var i = 0; i < len; ++i) {
accumulator = func.call(context, accumulator, this[i], i, this);
}
return accumulator;
};
}
if (!svg) {
// Prevent wrapping from creating false offsetWidths in export in legacy IE.
// This applies only to charts for export, where IE runs the SVGRenderer
// instead of the VMLRenderer
// (#1079, #1063)
wrap(H.SVGRenderer.prototype, 'text', function(proceed) {
return proceed.apply(
this,
Array.prototype.slice.call(arguments, 1)
).css({
position: 'absolute'
});
});
/**
* Old IE override for pointer normalize, adds chartX and chartY to event
* arguments.
*/
H.Pointer.prototype.normalize = function(e, chartPosition) {
e = e || win.event;
if (!e.target) {
e.target = e.srcElement;
}
// Get mouse position
if (!chartPosition) {
this.chartPosition = chartPosition = H.offset(this.chart.container);
}
return H.extend(e, {
// #2005, #2129: the second case is for IE10 quirks mode within
// framesets
chartX: Math.round(Math.max(e.x, e.clientX - chartPosition.left)),
chartY: Math.round(e.y)
});
};
/**
* Further sanitize the mock-SVG that is generated when exporting charts in
* oldIE.
*/
Chart.prototype.ieSanitizeSVG = function(svg) {
svg = svg
.replace(/<IMG /g, '<image ')
.replace(/<(\/?)TITLE>/g, '<$1title>')
.replace(/height=([^" ]+)/g, 'height="$1"')
.replace(/width=([^" ]+)/g, 'width="$1"')
.replace(/hc-svg-href="([^"]+)">/g, 'xlink:href="$1"/>')
.replace(/ id=([^" >]+)/g, ' id="$1"') // #4003
.replace(/class=([^" >]+)/g, 'class="$1"')
.replace(/ transform /g, ' ')
.replace(/:(path|rect)/g, '$1')
.replace(/style="([^"]+)"/g, function(s) {
return s.toLowerCase();
});
return svg;
};
// IE compatibility hack for generating SVG content that it doesn't really
// understand. Used by the exporting module.
if (!doc.createElementNS) {
doc.createElementNS = function(ns, tagName) {
return doc.createElement(tagName);
};
}
/**
* Old IE polyfill for addEventListener, called from inside the addEvent
* function.
*/
H.addEventListenerPolyfill = function(type, fn) {
var el = this;
function wrappedFn(e) {
e.target = e.srcElement || win; // #2820
fn.call(el, e);
}
if (el.attachEvent) {
if (!el.hcEventsIE) {
el.hcEventsIE = {};
}
// unique function string (#6746)
if (!fn.hcKey) {
fn.hcKey = H.uniqueKey();
}
// Link wrapped fn with original fn, so we can get this in
// removeEvent
el.hcEventsIE[fn.hcKey] = wrappedFn;
el.attachEvent('on' + type, wrappedFn);
}
};
H.removeEventListenerPolyfill = function(type, fn) {
if (this.detachEvent) {
fn = this.hcEventsIE[fn.hcKey];
this.detachEvent('on' + type, fn);
}
};
/**
* The VML element wrapper.
*/
VMLElement = {
docMode8: doc && doc.documentMode === 8,
/**
* Initialize a new VML element wrapper. It builds the markup as a string
* to minimize DOM traffic.
* @param {Object} renderer
* @param {Object} nodeName
*/
init: function(renderer, nodeName) {
var wrapper = this,
markup = ['<', nodeName, ' filled="f" stroked="f"'],
style = ['position: ', 'absolute', ';'],
isDiv = nodeName === 'div';
// divs and shapes need size
if (nodeName === 'shape' || isDiv) {
style.push('left:0;top:0;width:1px;height:1px;');
}
style.push('visibility: ', isDiv ? 'hidden' : 'visible');
markup.push(' style="', style.join(''), '"/>');
// create element with default attributes and style
if (nodeName) {
markup = isDiv || nodeName === 'span' || nodeName === 'img' ?
markup.join('') :
renderer.prepVML(markup);
wrapper.element = createElement(markup);
}
wrapper.renderer = renderer;
},
/**
* Add the node to the given parent
* @param {Object} parent
*/
add: function(parent) {
var wrapper = this,
renderer = wrapper.renderer,
element = wrapper.element,
box = renderer.box,
inverted = parent && parent.inverted,
// get the parent node
parentNode = parent ?
parent.element || parent :
box;
if (parent) {
this.parentGroup = parent;
}
// if the parent group is inverted, apply inversion on all children
if (inverted) { // only on groups
renderer.invertChild(element, parentNode);
}
// append it
parentNode.appendChild(element);
// align text after adding to be able to read offset
wrapper.added = true;
if (wrapper.alignOnAdd && !wrapper.deferUpdateTransform) {
wrapper.updateTransform();
}
// fire an event for internal hooks
if (wrapper.onAdd) {
wrapper.onAdd();
}
// IE8 Standards can't set the class name before the element is appended
if (this.className) {
this.attr('class', this.className);
}
return wrapper;
},
/**
* VML always uses htmlUpdateTransform
*/
updateTransform: SVGElement.prototype.htmlUpdateTransform,
/**
* Set the rotation of a span with oldIE's filter
*/
setSpanRotation: function() {
// Adjust for alignment and rotation. Rotation of useHTML content is not yet implemented
// but it can probably be implemented for Firefox 3.5+ on user request. FF3.5+
// has support for CSS3 transform. The getBBox method also needs to be updated
// to compensate for the rotation, like it currently does for SVG.
// Test case: http://jsfiddle.net/highcharts/Ybt44/
var rotation = this.rotation,
costheta = Math.cos(rotation * deg2rad),
sintheta = Math.sin(rotation * deg2rad);
css(this.element, {
filter: rotation ? ['progid:DXImageTransform.Microsoft.Matrix(M11=', costheta,
', M12=', -sintheta, ', M21=', sintheta, ', M22=', costheta,
', sizingMethod=\'auto expand\')'
].join('') : 'none'
});
},
/**
* Get the positioning correction for the span after rotating.
*/
getSpanCorrection: function(width, baseline, alignCorrection, rotation, align) {
var costheta = rotation ? Math.cos(rotation * deg2rad) : 1,
sintheta = rotation ? Math.sin(rotation * deg2rad) : 0,
height = pick(this.elemHeight, this.element.offsetHeight),
quad,
nonLeft = align && align !== 'left';
// correct x and y
this.xCorr = costheta < 0 && -width;
this.yCorr = sintheta < 0 && -height;
// correct for baseline and corners spilling out after rotation
quad = costheta * sintheta < 0;
this.xCorr += sintheta * baseline * (quad ? 1 - alignCorrection : alignCorrection);
this.yCorr -= costheta * baseline * (rotation ? (quad ? alignCorrection : 1 - alignCorrection) : 1);
// correct for the length/height of the text
if (nonLeft) {
this.xCorr -= width * alignCorrection * (costheta < 0 ? -1 : 1);
if (rotation) {
this.yCorr -= height * alignCorrection * (sintheta < 0 ? -1 : 1);
}
css(this.element, {
textAlign: align
});
}
},
/**
* Converts a subset of an SVG path definition to its VML counterpart. Takes an array
* as the parameter and returns a string.
*/
pathToVML: function(value) {
// convert paths
var i = value.length,
path = [];
while (i--) {
// Multiply by 10 to allow subpixel precision.
// Substracting half a pixel seems to make the coordinates
// align with SVG, but this hasn't been tested thoroughly
if (isNumber(value[i])) {
path[i] = Math.round(value[i] * 10) - 5;
} else if (value[i] === 'Z') { // close the path
path[i] = 'x';
} else {
path[i] = value[i];
// When the start X and end X coordinates of an arc are too close,
// they are rounded to the same value above. In this case, substract or
// add 1 from the end X and Y positions. #186, #760, #1371, #1410.
if (value.isArc && (value[i] === 'wa' || value[i] === 'at')) {
// Start and end X
if (path[i + 5] === path[i + 7]) {
path[i + 7] += value[i + 7] > value[i + 5] ? 1 : -1;
}
// Start and end Y
if (path[i + 6] === path[i + 8]) {
path[i + 8] += value[i + 8] > value[i + 6] ? 1 : -1;
}
}
}
}
return path.join(' ') || 'x';
},
/**
* Set the element's clipping to a predefined rectangle
*
* @param {String} id The id of the clip rectangle
*/
clip: function(clipRect) {
var wrapper = this,
clipMembers,
cssRet;
if (clipRect) {
clipMembers = clipRect.members;
erase(clipMembers, wrapper); // Ensure unique list of elements (#1258)
clipMembers.push(wrapper);
wrapper.destroyClip = function() {
erase(clipMembers, wrapper);
};
cssRet = clipRect.getCSS(wrapper);
} else {
if (wrapper.destroyClip) {
wrapper.destroyClip();
}
cssRet = {
clip: wrapper.docMode8 ? 'inherit' : 'rect(auto)'
}; // #1214
}
return wrapper.css(cssRet);
},
/**
* Set styles for the element
* @param {Object} styles
*/
css: SVGElement.prototype.htmlCss,
/**
* Removes a child either by removeChild or move to garbageBin.
* Issue 490; in VML removeChild results in Orphaned nodes according to sIEve, discardElement does not.
*/
safeRemoveChild: function(element) {
// discardElement will detach the node from its parent before attaching it
// to the garbage bin. Therefore it is important that the node is attached and have parent.
if (element.parentNode) {
discardElement(element);
}
},
/**
* Extend element.destroy by removing it from the clip members array
*/
destroy: function() {
if (this.destroyClip) {
this.destroyClip();
}
return SVGElement.prototype.destroy.apply(this);
},
/**
* Add an event listener. VML override for normalizing event parameters.
* @param {String} eventType
* @param {Function} handler
*/
on: function(eventType, handler) {
// simplest possible event model for internal use
this.element['on' + eventType] = function() {
var evt = win.event;
evt.target = evt.srcElement;
handler(evt);
};
return this;
},
/**
* In stacked columns, cut off the shadows so that they don't overlap
*/
cutOffPath: function(path, length) {
var len;
path = path.split(/[ ,]/); // The extra comma tricks the trailing comma remover in "gulp scripts" task
len = path.length;
if (len === 9 || len === 11) {
path[len - 4] = path[len - 2] = pInt(path[len - 2]) - 10 * length;
}
return path.join(' ');
},
/**
* Apply a drop shadow by copying elements and giving them different strokes
* @param {Boolean|Object} shadowOptions
*/
shadow: function(shadowOptions, group, cutOff) {
var shadows = [],
i,
element = this.element,
renderer = this.renderer,
shadow,
elemStyle = element.style,
markup,
path = element.path,
strokeWidth,
modifiedPath,
shadowWidth,
shadowElementOpacity;
// some times empty paths are not strings
if (path && typeof path.value !== 'string') {
path = 'x';
}
modifiedPath = path;
if (shadowOptions) {
shadowWidth = pick(shadowOptions.width, 3);
shadowElementOpacity = (shadowOptions.opacity || 0.15) / shadowWidth;
for (i = 1; i <= 3; i++) {
strokeWidth = (shadowWidth * 2) + 1 - (2 * i);
// Cut off shadows for stacked column items
if (cutOff) {
modifiedPath = this.cutOffPath(path.value, strokeWidth + 0.5);
}
markup = ['<shape isShadow="true" strokeweight="', strokeWidth,
'" filled="false" path="', modifiedPath,
'" coordsize="10 10" style="', element.style.cssText, '" />'
];
shadow = createElement(renderer.prepVML(markup),
null, {
left: pInt(elemStyle.left) + pick(shadowOptions.offsetX, 1),
top: pInt(elemStyle.top) + pick(shadowOptions.offsetY, 1)
}
);
if (cutOff) {
shadow.cutOff = strokeWidth + 1;
}
// apply the opacity
markup = [
'<stroke color="',
shadowOptions.color || '#000000',
'" opacity="', shadowElementOpacity * i, '"/>'
];
createElement(renderer.prepVML(markup), null, null, shadow);
// insert it
if (group) {
group.element.appendChild(shadow);
} else {
element.parentNode.insertBefore(shadow, element);
}
// record it
shadows.push(shadow);
}
this.shadows = shadows;
}
return this;
},
updateShadows: noop, // Used in SVG only
setAttr: function(key, value) {
if (this.docMode8) { // IE8 setAttribute bug
this.element[key] = value;
} else {
this.element.setAttribute(key, value);
}
},
classSetter: function(value) {
// IE8 Standards mode has problems retrieving the className unless set like this.
// IE8 Standards can't set the class name before the element is appended.
(this.added ? this.element : this).className = value;
},
dashstyleSetter: function(value, key, element) {
var strokeElem = element.getElementsByTagName('stroke')[0] ||
createElement(this.renderer.prepVML(['<stroke/>']), null, null, element);
strokeElem[key] = value || 'solid';
this[key] = value;
/* because changing stroke-width will change the dash length
and cause an epileptic effect */
},
dSetter: function(value, key, element) {
var i,
shadows = this.shadows;
value = value || [];
this.d = value.join && value.join(' '); // used in getter for animation
element.path = value = this.pathToVML(value);
// update shadows
if (shadows) {
i = shadows.length;
while (i--) {
shadows[i].path = shadows[i].cutOff ? this.cutOffPath(value, shadows[i].cutOff) : value;
}
}
this.setAttr(key, value);
},
fillSetter: function(value, key, element) {
var nodeName = element.nodeName;
if (nodeName === 'SPAN') { // text color
element.style.color = value;
} else if (nodeName !== 'IMG') { // #1336
element.filled = value !== 'none';
this.setAttr('fillcolor', this.renderer.color(value, element, key, this));
}
},
'fill-opacitySetter': function(value, key, element) {
createElement(
this.renderer.prepVML(['<', key.split('-')[0], ' opacity="', value, '"/>']),
null,
null,
element
);
},
opacitySetter: noop, // Don't bother - animation is too slow and filters introduce artifacts
rotationSetter: function(value, key, element) {
var style = element.style;
this[key] = style[key] = value; // style is for #1873
// Correction for the 1x1 size of the shape container. Used in gauge needles.
style.left = -Math.round(Math.sin(value * deg2rad) + 1) + 'px';
style.top = Math.round(Math.cos(value * deg2rad)) + 'px';
},
strokeSetter: function(value, key, element) {
this.setAttr('strokecolor', this.renderer.color(value, element, key, this));
},
'stroke-widthSetter': function(value, key, element) {
element.stroked = !!value; // VML "stroked" attribute
this[key] = value; // used in getter, issue #113
if (isNumber(value)) {
value += 'px';
}
this.setAttr('strokeweight', value);
},
titleSetter: function(value, key) {
this.setAttr(key, value);
},
visibilitySetter: function(value, key, element) {
// Handle inherited visibility
if (value === 'inherit') {
value = 'visible';
}
// Let the shadow follow the main element
if (this.shadows) {
each(this.shadows, function(shadow) {
shadow.style[key] = value;
});
}
// Instead of toggling the visibility CSS property, move the div out of the viewport.
// This works around #61 and #586
if (element.nodeName === 'DIV') {
value = value === 'hidden' ? '-999em' : 0;
// In order to redraw, IE7 needs the div to be visible when tucked away
// outside the viewport. So the visibility is actually opposite of
// the expected value. This applies to the tooltip only.
if (!this.docMode8) {
element.style[key] = value ? 'visible' : 'hidden';
}
key = 'top';
}
element.style[key] = value;
},
xSetter: function(value, key, element) {
this[key] = value; // used in getter
if (key === 'x') {
key = 'left';
} else if (key === 'y') {
key = 'top';
}
/* else {
value = Math.max(0, value); // don't set width or height below zero (#311)
}*/
// clipping rectangle special
if (this.updateClipping) {
this[key] = value; // the key is now 'left' or 'top' for 'x' and 'y'
this.updateClipping();
} else {
// normal
element.style[key] = value;
}
},
zIndexSetter: function(value, key, element) {
element.style[key] = value;
}
};
VMLElement['stroke-opacitySetter'] = VMLElement['fill-opacitySetter'];
H.VMLElement = VMLElement = extendClass(SVGElement, VMLElement);
// Some shared setters
VMLElement.prototype.ySetter =
VMLElement.prototype.widthSetter =
VMLElement.prototype.heightSetter =
VMLElement.prototype.xSetter;
/**
* The VML renderer
*/
VMLRendererExtension = { // inherit SVGRenderer
Element: VMLElement,
isIE8: win.navigator.userAgent.indexOf('MSIE 8.0') > -1,
/**
* Initialize the VMLRenderer
* @param {Object} container
* @param {Number} width
* @param {Number} height
*/
init: function(container, width, height) {
var renderer = this,
boxWrapper,
box,
css;
renderer.alignedObjects = [];
boxWrapper = renderer.createElement('div')
.css({
position: 'relative'
});
box = boxWrapper.element;
container.appendChild(boxWrapper.element);
// generate the containing box
renderer.isVML = true;
renderer.box = box;
renderer.boxWrapper = boxWrapper;
renderer.gradients = {};
renderer.cache = {}; // Cache for numerical bounding boxes
renderer.cacheKeys = [];
renderer.imgCount = 0;
renderer.setSize(width, height, false);
// The only way to make IE6 and IE7 print is to use a global namespace. However,
// with IE8 the only way to make the dynamic shapes visible in screen and print mode
// seems to be to add the xmlns attribute and the behaviour style inline.
if (!doc.namespaces.hcv) {
doc.namespaces.add('hcv', 'urn:schemas-microsoft-com:vml');
// Setup default CSS (#2153, #2368, #2384)
css = 'hcv\\:fill, hcv\\:path, hcv\\:shape, hcv\\:stroke' +
'{ behavior:url(#default#VML); display: inline-block; } ';
try {
doc.createStyleSheet().cssText = css;
} catch (e) {
doc.styleSheets[0].cssText += css;
}
}
},
/**
* Detect whether the renderer is hidden. This happens when one of the parent elements
* has display: none
*/
isHidden: function() {
return !this.box.offsetWidth;
},
/**
* Define a clipping rectangle. In VML it is accomplished by storing the values
* for setting the CSS style to all associated members.
*
* @param {Number} x
* @param {Number} y
* @param {Number} width
* @param {Number} height
*/
clipRect: function(x, y, width, height) {
// create a dummy element
var clipRect = this.createElement(),
isObj = isObject(x);
// mimic a rectangle with its style object for automatic updating in attr
return extend(clipRect, {
members: [],
count: 0,
left: (isObj ? x.x : x) + 1,
top: (isObj ? x.y : y) + 1,
width: (isObj ? x.width : width) - 1,
height: (isObj ? x.height : height) - 1,
getCSS: function(wrapper) {
var element = wrapper.element,
nodeName = element.nodeName,
isShape = nodeName === 'shape',
inverted = wrapper.inverted,
rect = this,
top = rect.top - (isShape ? element.offsetTop : 0),
left = rect.left,
right = left + rect.width,
bottom = top + rect.height,
ret = {
clip: 'rect(' +
Math.round(inverted ? left : top) + 'px,' +
Math.round(inverted ? bottom : right) + 'px,' +
Math.round(inverted ? right : bottom) + 'px,' +
Math.round(inverted ? top : left) + 'px)'
};
// issue 74 workaround
if (!inverted && wrapper.docMode8 && nodeName === 'DIV') {
extend(ret, {
width: right + 'px',
height: bottom + 'px'
});
}
return ret;
},
// used in attr and animation to update the clipping of all members
updateClipping: function() {
each(clipRect.members, function(member) {
// Member.element is falsy on deleted series, like in
// stock/members/series-remove demo. Should be removed
// from members, but this will do.
if (member.element) {
member.css(clipRect.getCSS(member));
}
});
}
});
},
/**
* Take a color and return it if it's a string, make it a gradient if it's a
* gradient configuration object, and apply opacity.
*
* @param {Object} color The color or config object
*/
color: function(color, elem, prop, wrapper) {
var renderer = this,
colorObject,
regexRgba = /^rgba/,
markup,
fillType,
ret = 'none';
// Check for linear or radial gradient
if (color && color.linearGradient) {
fillType = 'gradient';
} else if (color && color.radialGradient) {
fillType = 'pattern';
}
if (fillType) {
var stopColor,
stopOpacity,
gradient = color.linearGradient || color.radialGradient,
x1,
y1,
x2,
y2,
opacity1,
opacity2,
color1,
color2,
fillAttr = '',
stops = color.stops,
firstStop,
lastStop,
colors = [],
addFillNode = function() {
// Add the fill subnode. When colors attribute is used, the meanings of opacity and o:opacity2
// are reversed.
markup = ['<fill colors="' + colors.join(',') +
'" opacity="', opacity2, '" o:opacity2="',
opacity1, '" type="', fillType, '" ', fillAttr,
'focus="100%" method="any" />'
];
createElement(renderer.prepVML(markup), null, null, elem);
};
// Extend from 0 to 1
firstStop = stops[0];
lastStop = stops[stops.length - 1];
if (firstStop[0] > 0) {
stops.unshift([
0,
firstStop[1]
]);
}
if (lastStop[0] < 1) {
stops.push([
1,
lastStop[1]
]);
}
// Compute the stops
each(stops, function(stop, i) {
if (regexRgba.test(stop[1])) {
colorObject = H.color(stop[1]);
stopColor = colorObject.get('rgb');
stopOpacity = colorObject.get('a');
} else {
stopColor = stop[1];
stopOpacity = 1;
}
// Build the color attribute
colors.push((stop[0] * 100) + '% ' + stopColor);
// Only start and end opacities are allowed, so we use the first and the last
if (!i) {
opacity1 = stopOpacity;
color2 = stopColor;
} else {
opacity2 = stopOpacity;
color1 = stopColor;
}
});
// Apply the gradient to fills only.
if (prop === 'fill') {
// Handle linear gradient angle
if (fillType === 'gradient') {
x1 = gradient.x1 || gradient[0] || 0;
y1 = gradient.y1 || gradient[1] || 0;
x2 = gradient.x2 || gradient[2] || 0;
y2 = gradient.y2 || gradient[3] || 0;
fillAttr = 'angle="' + (90 - Math.atan(
(y2 - y1) / // y vector
(x2 - x1) // x vector
) * 180 / Math.PI) + '"';
addFillNode();
// Radial (circular) gradient
} else {
var r = gradient.r,
sizex = r * 2,
sizey = r * 2,
cx = gradient.cx,
cy = gradient.cy,
radialReference = elem.radialReference,
bBox,
applyRadialGradient = function() {
if (radialReference) {
bBox = wrapper.getBBox();
cx += (radialReference[0] - bBox.x) / bBox.width - 0.5;
cy += (radialReference[1] - bBox.y) / bBox.height - 0.5;
sizex *= radialReference[2] / bBox.width;
sizey *= radialReference[2] / bBox.height;
}
fillAttr = 'src="' + H.getOptions().global.VMLRadialGradientURL + '" ' +
'size="' + sizex + ',' + sizey + '" ' +
'origin="0.5,0.5" ' +
'position="' + cx + ',' + cy + '" ' +
'color2="' + color2 + '" ';
addFillNode();
};
// Apply radial gradient
if (wrapper.added) {
applyRadialGradient();
} else {
// We need to know the bounding box to get the size and position right
wrapper.onAdd = applyRadialGradient;
}
// The fill element's color attribute is broken in IE8 standards mode, so we
// need to set the parent shape's fillcolor attribute instead.
ret = color1;
}
// Gradients are not supported for VML stroke, return the first color. #722.
} else {
ret = stopColor;
}
// If the color is an rgba color, split it and add a fill node
// to hold the opacity component
} else if (regexRgba.test(color) && elem.tagName !== 'IMG') {
colorObject = H.color(color);
wrapper[prop + '-opacitySetter'](colorObject.get('a'), prop, elem);
ret = colorObject.get('rgb');
} else {
var propNodes = elem.getElementsByTagName(prop); // 'stroke' or 'fill' node
if (propNodes.length) {
propNodes[0].opacity = 1;
propNodes[0].type = 'solid';
}
ret = color;
}
return ret;
},
/**
* Take a VML string and prepare it for either IE8 or IE6/IE7.
* @param {Array} markup A string array of the VML markup to prepare
*/
prepVML: function(markup) {
var vmlStyle = 'display:inline-block;behavior:url(#default#VML);',
isIE8 = this.isIE8;
markup = markup.join('');
if (isIE8) { // add xmlns and style inline
markup = markup.replace('/>', ' xmlns="urn:schemas-microsoft-com:vml" />');
if (markup.indexOf('style="') === -1) {
markup = markup.replace('/>', ' style="' + vmlStyle + '" />');
} else {
markup = markup.replace('style="', 'style="' + vmlStyle);
}
} else { // add namespace
markup = markup.replace('<', '<hcv:');
}
return markup;
},
/**
* Create rotated and aligned text
* @param {String} str
* @param {Number} x
* @param {Number} y
*/
text: SVGRenderer.prototype.html,
/**
* Create and return a path element
* @param {Array} path
*/
path: function(path) {
var attr = {
// subpixel precision down to 0.1 (width and height = 1px)
coordsize: '10 10'
};
if (isArray(path)) {
attr.d = path;
} else if (isObject(path)) { // attributes
extend(attr, path);
}
// create the shape
return this.createElement('shape').attr(attr);
},
/**
* Create and return a circle element. In VML circles are implemented as
* shapes, which is faster than v:oval
* @param {Number} x
* @param {Number} y
* @param {Number} r
*/
circle: function(x, y, r) {
var circle = this.symbol('circle');
if (isObject(x)) {
r = x.r;
y = x.y;
x = x.x;
}
circle.isCircle = true; // Causes x and y to mean center (#1682)
circle.r = r;
return circle.attr({
x: x,
y: y
});
},
/**
* Create a group using an outer div and an inner v:group to allow rotating
* and flipping. A simple v:group would have problems with positioning
* child HTML elements and CSS clip.
*
* @param {String} name The name of the group
*/
g: function(name) {
var wrapper,
attribs;
// set the class name
if (name) {
attribs = {
'className': 'highcharts-' + name,
'class': 'highcharts-' + name
};
}
// the div to hold HTML and clipping
wrapper = this.createElement('div').attr(attribs);
return wrapper;
},
/**
* VML override to create a regular HTML image
* @param {String} src
* @param {Number} x
* @param {Number} y
* @param {Number} width
* @param {Number} height
*/
image: function(src, x, y, width, height) {
var obj = this.createElement('img')
.attr({
src: src
});
if (arguments.length > 1) {
obj.attr({
x: x,
y: y,
width: width,
height: height
});
}
return obj;
},
/**
* For rectangles, VML uses a shape for rect to overcome bugs and rotation problems
*/
createElement: function(nodeName) {
return nodeName === 'rect' ?
this.symbol(nodeName) :
SVGRenderer.prototype.createElement.call(this, nodeName);
},
/**
* In the VML renderer, each child of an inverted div (group) is inverted
* @param {Object} element
* @param {Object} parentNode
*/
invertChild: function(element, parentNode) {
var ren = this,
parentStyle = parentNode.style,
imgStyle = element.tagName === 'IMG' && element.style; // #1111
css(element, {
flip: 'x',
left: pInt(parentStyle.width) - (imgStyle ? pInt(imgStyle.top) : 1),
top: pInt(parentStyle.height) - (imgStyle ? pInt(imgStyle.left) : 1),
rotation: -90
});
// Recursively invert child elements, needed for nested composite
// shapes like box plots and error bars. #1680, #1806.
each(element.childNodes, function(child) {
ren.invertChild(child, element);
});
},
/**
* Symbol definitions that override the parent SVG renderer's symbols
*
*/
symbols: {
// VML specific arc function
arc: function(x, y, w, h, options) {
var start = options.start,
end = options.end,
radius = options.r || w || h,
innerRadius = options.innerR,
cosStart = Math.cos(start),
sinStart = Math.sin(start),
cosEnd = Math.cos(end),
sinEnd = Math.sin(end),
ret;
if (end - start === 0) { // no angle, don't show it.
return ['x'];
}
ret = [
'wa', // clockwise arc to
x - radius, // left
y - radius, // top
x + radius, // right
y + radius, // bottom
x + radius * cosStart, // start x
y + radius * sinStart, // start y
x + radius * cosEnd, // end x
y + radius * sinEnd // end y
];
if (options.open && !innerRadius) {
ret.push(
'e',
'M',
x, // - innerRadius,
y // - innerRadius
);
}
ret.push(
'at', // anti clockwise arc to
x - innerRadius, // left
y - innerRadius, // top
x + innerRadius, // right
y + innerRadius, // bottom
x + innerRadius * cosEnd, // start x
y + innerRadius * sinEnd, // start y
x + innerRadius * cosStart, // end x
y + innerRadius * sinStart, // end y
'x', // finish path
'e' // close
);
ret.isArc = true;
return ret;
},
// Add circle symbol path. This performs significantly faster than v:oval.
circle: function(x, y, w, h, wrapper) {
if (wrapper && defined(wrapper.r)) {
w = h = 2 * wrapper.r;
}
// Center correction, #1682
if (wrapper && wrapper.isCircle) {
x -= w / 2;
y -= h / 2;
}
// Return the path
return [
'wa', // clockwisearcto
x, // left
y, // top
x + w, // right
y + h, // bottom
x + w, // start x
y + h / 2, // start y
x + w, // end x
y + h / 2, // end y
'e' // close
];
},
/**
* Add rectangle symbol path which eases rotation and omits arcsize problems
* compared to the built-in VML roundrect shape. When borders are not rounded,
* use the simpler square path, else use the callout path without the arrow.
*/
rect: function(x, y, w, h, options) {
return SVGRenderer.prototype.symbols[!defined(options) || !options.r ? 'square' : 'callout'].call(0, x, y, w, h, options);
}
}
};
H.VMLRenderer = VMLRenderer = function() {
this.init.apply(this, arguments);
};
VMLRenderer.prototype = merge(SVGRenderer.prototype, VMLRendererExtension);
// general renderer
H.Renderer = VMLRenderer;
}
// This method is used with exporting in old IE, when emulating SVG (see #2314)
SVGRenderer.prototype.measureSpanWidth = function(text, styles) {
var measuringSpan = doc.createElement('span'),
offsetWidth,
textNode = doc.createTextNode(text);
measuringSpan.appendChild(textNode);
css(measuringSpan, styles);
this.box.appendChild(measuringSpan);
offsetWidth = measuringSpan.offsetWidth;
discardElement(measuringSpan); // #2463
return offsetWidth;
};
}(Highcharts));
}));