Changed the export options and resources for charts so as to not involve a third-party server for image exports.

- Legacy-Id: 11947

ietf/bower.json

@@ -41,6 +41,7 @@
 	  "highstock.js",
 	  "highmaps.js",
 	  "modules/exporting.js",
+	  "modules/offline-exporting.js",
 	  "modules/map.js"
 	]
     }

ietf/externals/static/highcharts/modules/offline-exporting.js

@@ -0,0 +1,16 @@
+/*
+ Highcharts JS v4.2.6 (2016-08-02)
+ Client side exporting module
+
+ (c) 2015 Torstein Honsi / Oystein Moseng
+
+ License: www.highcharts.com/license
+*/
+(function(a){typeof module==="object"&&module.exports?module.exports=a:a(Highcharts)})(function(a){function v(g,a){var c=m.getElementsByTagName("head")[0],b=m.createElement("script");b.type="text/javascript";b.src=g;b.onload=a;c.appendChild(b)}var j=a.win,k=j.navigator,m=j.document,r=j.URL||j.webkitURL||j,s=/Edge\/|Trident\/|MSIE /.test(k.userAgent),w=s?150:0;a.CanVGRenderer={};a.downloadURL=function(g,a){var c=m.createElement("a"),b;if(k.msSaveOrOpenBlob)k.msSaveOrOpenBlob(g,a);else if(c.download!==
+void 0)c.href=g,c.download=a,c.target="_blank",m.body.appendChild(c),c.click(),m.body.removeChild(c);else try{if(b=j.open(g,"chart"),b===void 0||b===null)throw"Failed to open window";}catch(i){j.location.href=g}};a.svgToDataUrl=function(a){var h=k.userAgent.indexOf("WebKit")>-1&&k.userAgent.indexOf("Chrome")<0;try{if(!h&&k.userAgent.toLowerCase().indexOf("firefox")<0)return r.createObjectURL(new j.Blob([a],{type:"image/svg+xml;charset-utf-16"}))}catch(c){}return"data:image/svg+xml;charset=UTF-8,"+
+encodeURIComponent(a)};a.imageToDataUrl=function(a,h,c,b,i,d,l,f,n){var e=new j.Image,k,o=function(){setTimeout(function(){var d=m.createElement("canvas"),o=d.getContext&&d.getContext("2d"),f;try{if(o){d.height=e.height*b;d.width=e.width*b;o.drawImage(e,0,0,d.width,d.height);try{f=d.toDataURL(h),i(f,h,c,b)}catch(j){k(a,h,c,b)}}else l(a,h,c,b)}finally{n&&n(a,h,c,b)}},w)},q=function(){f(a,h,c,b);n&&n(a,h,c,b)};k=function(){e=new j.Image;k=d;e.crossOrigin="Anonymous";e.onload=o;e.onerror=q;e.src=a};
+e.onload=o;e.onerror=q;e.src=a};a.downloadSVGLocal=function(g,h,c,b,i,d){var l,f,n=!0,e;if(c==="image/svg+xml")try{k.msSaveOrOpenBlob?(f=new MSBlobBuilder,f.append(g),l=f.getBlob("image/svg+xml")):l=a.svgToDataUrl(g),a.downloadURL(l,h),d&&d()}catch(p){i()}else l=a.svgToDataUrl(g),e=function(){try{r.revokeObjectURL(l)}catch(a){}},a.imageToDataUrl(l,c,{},b,function(b){try{a.downloadURL(b,h),d&&d()}catch(c){i()}},function(){var f=m.createElement("canvas"),l=f.getContext("2d"),t=g.match(/^<svg[^>]*width\s*=\s*\"?(\d+)\"?[^>]*>/)[1]*
+b,p=g.match(/^<svg[^>]*height\s*=\s*\"?(\d+)\"?[^>]*>/)[1]*b,u=function(){l.drawSvg(g,0,0,t,p);try{a.downloadURL(k.msSaveOrOpenBlob?f.msToBlob():f.toDataURL(c),h),d&&d()}catch(b){i()}finally{e()}};f.width=t;f.height=p;j.canvg?u():(n=!0,v(a.getOptions().global.canvasToolsURL,function(){u()}))},i,i,function(){n&&e()})};a.Chart.prototype.getSVGForLocalExport=function(g,h,c,b){var i=this,d,l=0,f,j,e,k,m=function(a,c,e){++l;e.imageElement.setAttributeNS("http://www.w3.org/1999/xlink","href",a);l===d.length&&
+b(i.sanitizeSVG(f.innerHTML))};a.wrap(a.Chart.prototype,"getChartHTML",function(a){f=this.container.cloneNode(!0);return a.apply(this,Array.prototype.slice.call(arguments,1))});i.getSVGForExport(g,h);d=f.getElementsByTagName("image");try{if(d.length)for(e=0,k=d.length;e<k;++e)j=d[e],a.imageToDataUrl(j.getAttributeNS("http://www.w3.org/1999/xlink","href"),"image/png",{imageElement:j},g.scale,m,c,c,c);else b(i.sanitizeSVG(f.innerHTML))}catch(q){c()}};a.Chart.prototype.exportChartLocal=function(g,h){var c=
+this,b=a.merge(c.options.exporting,g),i=b&&b.type||"image/png",d=function(){if(b.fallbackToExportServer===!1)if(b.error)b.error();else throw"Fallback to export server disabled";else c.exportChart(b)};s&&i!=="image/svg+xml"&&c.container.getElementsByTagName("image").length?d():c.getSVGForLocalExport(b,h,d,function(c){var f=(b.filename||"chart")+"."+(i==="image/svg+xml"?"svg":i.split("/")[1]);a.downloadSVGLocal(c,f,i,b.scale,d)})};a.getOptions().exporting.buttons.contextButton.menuItems=[{textKey:"printChart",
+onclick:function(){this.print()}},{separator:!0},{textKey:"downloadPNG",onclick:function(){this.exportChartLocal()}},{textKey:"downloadJPEG",onclick:function(){this.exportChartLocal({type:"image/jpeg"})}},{textKey:"downloadSVG",onclick:function(){this.exportChartLocal({type:"image/svg+xml"})}}]});

ietf/settings.py

@@ -700,6 +700,9 @@ CHART_TYPE_COLUMN_OPTIONS = {
     "credits": {
         "enabled": False,
     },
+    "exporting": {
+        "fallbackToExportServer": False,
+    },
     "rangeSelector" : {
         "selected": 5,
         "allButtonsEnabled": True,
@@ -739,6 +742,9 @@ CHART_TYPE_ACTIVITY_OPTIONS = {
     "credits": {
         "enabled": False,
     },
+    "exporting": {
+        "fallbackToExportServer": False,
+    },
     "navigation": {
         "buttonOptions": {
             "enabled": False,

ietf/templates/doc/stats/highstock.html

@@ -7,6 +7,7 @@
 {% block js %}
       <script src="{% static 'highcharts/highstock.js' %}"></script>
       <script src="{% static 'highcharts/modules/exporting.js' %}"></script>
+      <script src="{% static 'highcharts/modules/offline-exporting.js' %}"></script>
       <script>
 	$(function () {
 	    var chart;