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api.htm
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<!DOCTYPE html>
<html lang="en">
<head>
<!-- As template three.js web site was used -->
<meta charset="utf-8">
<title>JavaScript ROOT API examples</title>
<link rel="shortcut icon" href="./img/RootIcon.ico">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<meta property="og:title" content="JSROOT API examples"/>
<meta property="og:type" content="website"/>
<meta property="og:description" content="Web page shows URL syntax and JSROOT API usage"/>
<meta property="og:image" content="../files/img/th2.png"/>
<meta property="og:image:type" content="image/png" />
<meta property="og:image:width" content="200" />
<meta property="og:image:height" content="150" />
<style>
:root {
color-scheme: light dark;
--background-color: #fff;
--secondary-background-color: #f7f7f7;
--color-blue: #049EF4;
--text-color: #444;
--secondary-text-color: #9e9e9e;
--font-size: 16px;
--line-height: 26px;
--border-style: 1px solid #E8E8E8;
--header-height: 48px;
--panel-width: 280px;
--panel-padding: 16px;
--icon-size: 20px;
--expand-button-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIyNHB4IiBoZWlnaHQ9IjI0cHgiIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0iIzAwMDAwMCI+CiAgICA8cGF0aCBkPSJNMCAwaDI0djI0SDB6IiBmaWxsPSJub25lIi8+CiAgICA8cGF0aCBkPSJNMyAxOGgxOHYtMkgzdjJ6bTAtNWgxOHYtMkgzdjJ6bTAtN3YyaDE4VjZIM3oiLz4KPC9zdmc+Cg==");
}
@media (prefers-color-scheme: dark) {
:root {
--background-color: #222;
--secondary-background-color: #2e2e2e;
--text-color: #bbb;
--secondary-text-color: #666;
--border-style: 1px solid #444;
}
}
* {
box-sizing: border-box;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
html, body {
height: 100%;
}
html {
font-size: calc(var(--font-size) - 1px);
line-height: calc(var(--line-height) - 1px);
}
body {
font-family: 'Verdana, Geneva, sans-serif', monospace;
margin: 0px;
color: var(--text-color);
background-color: var(--background-color);
}
a {
text-decoration: none;
}
h1 {
font-size: 18px;
line-height: 24px;
font-weight: 500;
}
h2 {
padding: 0;
margin: 16px 0;
font-size: calc(var(--font-size) - 1px);
line-height: var(--line-height);
font-weight: 500;
color: var(--color-blue);
}
h1 a {
color: var(--color-blue);
}
#header {
display: flex;
height: var(--header-height);
border-bottom: var(--border-style);
align-items: center;
}
#header h1 {
padding-left: var(--panel-padding);
flex: 1;
display: flex;
align-items: center;
color: var(--color-blue);
}
#header #version {
border: 1px solid var(--color-blue);
color: var(--color-blue);
border-radius: 4px;
line-height: 16px;
padding: 0px 2px;
margin-left: 6px;
font-size: .9rem;
}
#panel {
position: fixed;
z-index: 100;
left: 0px;
width: var(--panel-width);
height: 100%;
overflow: auto;
border-right: var(--border-style);
display: flex;
flex-direction: column;
transition: 0s 0s height;
}
#panel #expandButton {
width: 48px;
height: 48px;
margin-right: 4px;
margin-left: 4px;
display: none;
cursor: pointer;
background-color: var(--text-color);
background-size: var(--icon-size);
-webkit-mask-image: var(--expand-button-image);
-webkit-mask-position: 50% 50%;
-webkit-mask-repeat: no-repeat;
mask-image: var(--expand-button-image);
mask-position: 50% 50%;
mask-repeat: no-repeat;
}
#contentWrapper {
flex: 1;
overflow: hidden;
display: flex;
flex-direction: column;
}
#panel #content {
flex: 1;
overflow-y: auto;
overflow-x: hidden;
-webkit-overflow-scrolling: touch;
padding: 0 var(--panel-padding) var(--panel-padding) var(--panel-padding);
}
#panel #content ul {
list-style-type: none;
padding: 0px;
margin: 0px 0 20px 0;
}
#panel #content ul li {
margin: 1px 0;
}
#panel #content h2:not(.hidden) {
margin-top: 16px;
border-top: none;
padding-top: 0;
}
#panel #content h2:not(.hidden) ~ h2 {
margin-top: 32px;
border-top: var(--border-style);
padding-top: 12px;
}
#panel #content a {
position: relative;
color: var(--text-color);
}
#panel #content a:hover,
#panel #content a:hover .spacer,
#panel #content .selected {
color: var(--color-blue);
}
#panel #content .selected {
text-decoration: underline;
}
#panel #content .hidden {
display: none !important;
}
#panel #content.minimal .card {
background-color: transparent;
margin-bottom: 4px;
}
#panel #content.minimal .cover {
display: none;
}
#panel #content.minimal .title {
padding: 0;
}
body.home #panel #content h2 {
margin-bottom: 2px;
padding-bottom: 0px;
margin-top: 18px;
border-top: none;
padding-top: 6px;
}
#viewer {
padding-left: var(--panel-width);
position: relative;
border: 0px;
left: 0px;
right: 0px;
height: 100%;
overflow: hidden;
}
#apiviewer {
position: relative;
border: 0px;
width: 100%;
height: 100%;
overflow: hidden;
}
#srcviewer {
position: relative;
border: 0px;
width: 100%;
height: 100%;
overflow: auto;
}
@media all and ( min-width: 1700px ) {
:root {
--panel-width: 280px;
--font-size: 18px;
--line-height: 28px;
--header-height: 56px;
--icon-size: 24px;
}
}
/* mobile */
@media all and ( max-width: 640px ) {
:root {
--header-height: 56px;
--icon-size: 24px;
}
#panel #expandButton {
display: block;
}
#panel {
position: absolute;
left: 0px;
top: 0px;
width: 100%;
right: 0px;
z-index: 1000;
overflow-x: hidden;
transition: 0s 0s height;
border: none;
height: var(--header-height);
transition: 0s 0.2s height;
}
#panel.open {
height: 100%;
transition: 0s 0s height;
}
#panelScrim {
pointer-events: none;
background-color: rgba(0,0,0,0);
position: absolute;
inset: 0px;
z-index: 1000;
pointer-events: none;
transition: .2s background-color;
}
#panel.open #panelScrim {
pointer-events: auto;
background-color: rgba(0,0,0,0.4);
}
#contentWrapper {
position: absolute;
right: 0;
top: 0;
bottom: 0;
background: var(--background-color);
box-shadow: 0 0 8px rgba(0,0,0,.1);
width: calc(100vw - 60px);
max-width: 360px;
z-index: 10000;
transition: .25s transform;
overflow-x: hidden;
margin-right: -380px;
line-height: 2rem;
}
#panel.open #contentWrapper {
transform: translate3d(-380px, 0 ,0);
}
#viewer {
padding-left: 0;
padding-top: var(--header-height);
}
}
</style>
</head>
<body class="home">
<div id="panel" class="open">
<div id="header">
<h1><div><a href="https://root.cern/js/">JSROOT</a></div><a id="version" href="http://github.com/root-project/jsroot/releases">dev</a></h1>
<div id="expandButton"></div>
</div>
<div id="panelScrim"></div>
<div id="contentWrapper">
<div id="content">
</div>
</div>
</div>
<div id="viewer">
<iframe id="apiviewer"></iframe>
<div id="srcviewer" style="display: none"></div>
</div>
</body>
<script type="module">
import { httpRequest, version, version_id, source_dir } from './modules/core.mjs';
let jsroot_path = './', filepath = '../files/';
document.getElementById('version').innerHTML = version_id != 'dev' ? version_id : version;
document.getElementById('version').title = `${version}, ${source_dir}`;
document.getElementById('expandButton').addEventListener('click', event => {
document.getElementById('panel').classList.toggle('open');
event.preventDefault();
});
document.getElementById('panelScrim').onclick = event => {
event.preventDefault();
document.getElementById('panel').classList.toggle('open');
};
if ((window.location.host.indexOf('jsroot.gsi.de') < 0) &&
(window.location.host.indexOf('root.cern') < 0)) {
filepath = 'https://root.cern/js/files/';
}
if (window.location.protocol == 'file:') {
jsroot_path = 'https://root.cern/js/dev/';
filepath = 'https://root.cern/js/files/';
}
function GetGithubBrunch(is_test) {
if (source_dir.indexOf('/dev/') > 0 && !is_test) return 'dev/';
if (source_dir.indexOf('/v6/') > 0) return 'v6/';
return 'master/';
}
let examples = {
'URL syntax': [
{ name: 'Open file', url: '?file=' + filepath + 'hsimple.root', title: 'Open ROOT file with the JSROOT; `&file=<name>`' },
{ name: 'Display item', url: '?file=' + filepath + 'hsimple.root&item=hpxpy;1&opt=colz', title: 'Open ROOT file and display item; `&item=<name>&opt=<value>`' },
{ name: 'Enable status', url: '?status&file=' + filepath + 'hsimple.root&item=hpxpy;1&opt=colz', title: 'Show tooltip information in special status line; `&status`' },
{ name: 'Hide browser', url: '?nobrowser&file=' + filepath + 'hsimple.root&item=hprof;1', title: 'Hide browser - only display items, browser can be activated later; `&nobrowser`' },
{ name: 'Float browser', url: '?float&file=' + filepath + 'hsimple.root&item=ntuple;1&opt=px:pz', title: 'Display floating browser, which overlays objects drawings; `&float`' },
{ name: 'Flexible layout', url: '?file=' + filepath + 'hsimple.root&layout=flex&items=[hpx;1,hpxpy;1,hprof;1]&opts=[hist,colz,e1]', title: 'Display several items with flexible layout; `&layout=flex`', syn: 'url_syntax_tabs_layout', syn2: 'url_syntax_collapsible_layout' },
{ name: 'Tabs layout', url: '?file=' + filepath + 'hsimple.root&layout=tabs&items=[hpx;1,hpxpy;1,hprof;1]&opts=[hist,colz,e1]', title: 'Example of tabs layout; `&layout=tabs`' },
{ name: 'Grid layout', url: '?path=' + filepath + '&layout=grid2x2&files=[hsimple.root,glbox.root]&items=[hsimple.root/hpx;1,hsimple.root/hpxpy;1,hsimple.root/hprof;1,glbox.root/h31;1]&opts=[hist,lego20,e1,box2]', title: 'Example of grid layout with 2D and 3D drawings; `&layout=grid2x2`' },
{ name: 'Veritcal layout', url: '?file=' + filepath + 'hsimple.root&layout=vert121&items=[hpx;1,hpxpy;1,ntuple;1,hprof;1]&opts=[hist,colz,px:pz,e1]', title: 'Display several items in vertical layout; `&layout=vert121`' },
{ name: 'Horizontal layout', url: '?file=' + filepath + 'hsimple.root&layout=horiz32_12&items=[ntuple,ntuple,ntuple,hpx,hpxpy]&opts=[px:py,px:pz,py:pz,hist,lego2]', title: 'Display several items in horizontal layout, adjust size ratio; `&layout=horiz32_12`' },
{ name: 'Inspector', url: '?file=' + filepath + 'hsimple.root&item=hpx;1&opt=inspect', title: 'Show objects data memebers; `&opt=inspect`' },
{ name: 'Projection', url: '?nobrowser&file=' + filepath + 'hsimple.root&item=hpxpy;1&opt=col,projx3', title: 'Enable X projection with 3 bins, `&opt=projx3`' },
{ name: 'Images', url: '?path=' + filepath + '&layout=grid2x2&file=hsimple.root&items=[hpx;1,hpxpy;1,img:../files/img/ALICE.png,img:../files/img/ATLAS.png]&opts=[hist,colz,scale,center]', title: 'Example of adding images from the web server, `item=img:path/to/image.png`' },
{ name: 'Use JSON', url: '?nobrowser&json=https://jsroot.gsi.de/files/danilo6.json', title: 'Read and display data from JSON file, produced with TBufferJSON class; `&json=<filename>`' },
{ name: 'Superimpose', url: '?file=' + filepath + 'fillrandom.root&item=h1f;1+sqroot;1', title: 'Superimpose histogram and function; `&item=<name1>+<name2>`' },
{ name: 'Several files', url: '?layout=grid2x2&path=' + filepath + '&files=[hsimple.root,graph.root,ct.root]&items=[hsimple.root/[1],graph.root/[11],graph.root/[3],ct.root/[0]]&opts=[lego]', title: 'Open several files simultaneusely; `&files=[<filename1>,<filename2>,...]`' },
{ name: 'Superimpose 2 files', url: '?files=[' + filepath + 'hsimple.root,' + filepath + 'graph.root]&item=graph.root/Graph;1+hsimple.root/hprof;1', title: 'Superimpose items from two different files; `&item=<filename1>/<item1>+<filename2>/<item2>`' },
{ name: 'Superimpose 3 files', url: '?path=' + filepath + '&files=[temp44.root,temp35.root,temp28.root]&item=temp44.root/Histograms/TDC_C100/Ch1/TDC_C100_Ch1_RisingCalibr;1+temp35.root/_same_+temp28.root/_same_&opt=plc,nostat+plc+plc&tooltip=2', title: 'Superimpose same item from three different files; `&item=<filename1>/<item1>+<filename2>/<item2>+<filename3>/<item3>`' },
{ name: 'Use autozoom', url: '?layout=grid1x3&path=' + filepath + '&files=[temp44.root,temp35.root,temp28.root]&items=[temp44.root/Histograms/TDC_C100/Ch3/TDC_C100_Ch3_RisingRef;1,temp35.root/_same_,temp28.root/_same_]&opts=[autozoom,autozoom,autozoom]', title: 'Let display only non-empty bins of the histogram(s); `&opt=autozoom`' }
],
'Custom HTML' : [
{ name: 'Read JSON', url: 'demo/read_json.htm', title: 'Custom web page to read and display object from JSON file', src: true },
{ name: 'Read ROOT file', url: 'demo/read_file.htm', title: 'Read and display object from ROOT file', src: true, syn: 'custom_html_async_read' },
{ name: 'Without id attr', url: 'demo/without_id.htm', title: 'Do not use explicit id attribute for traget HTML element', src: true },
{ name: 'Preload', url: 'demo/preload.htm', title: 'Load complete build/jsroot.js bundle in advance', src: true },
{ name: 'TH2', url: 'demo/th2.htm', title: 'Produce and draw ROOT TH2 histogram in JavaScript', src: true },
{ name: 'TH3', url: 'demo/th3.htm', title: 'Produce and draw ROOT TH3 histogram in JavaScript', src: true },
{ name: 'THStack', url: 'demo/thstack.htm', title: 'Produce and draw THStack', src: true },
{ name: 'TMultiGraph', url: 'demo/multigraph.htm', title: 'Produce and update TMultiGraph in JavaScript', src: true },
{ name: 'TLegend', url: 'demo/multigraph_legend.htm', title: 'Show and update TLegend with multi-graph', src: true },
{ name: 'TGeo', url: 'demo/read_geometry_tracks.htm', title: 'Example how to draw geometry with tracks', src: true },
{ name: 'TGeo with STL', url: 'demo/draw_geometry_stl.htm', title: 'Example how to to use THREE.STLLoader with TGeo painter', src: true },
{ name: 'Create image', url: 'demo/make_image.htm', title: 'Create SVG, PNG and JPEG images from ROOT objects', src: true },
{ name: 'Tooltip hanlder', url: 'demo/tooltip.htm', title: 'User handler function called when tooltip is shown, let build custom UI', src: true },
{ name: 'Tooltip lines', url: 'demo/tooltip_lines.htm', title: 'Provide custom information in tooltip text for TH2 and TGraph classes', src: true },
{ name: 'Update drawing', url: 'demo/update_draw.htm', title: 'Update drawing, reading 20 histograms in loop', src: true },
{ name: 'Update in grid', url: 'demo/update_draw.htm?layout=grid3x2', title: 'Update drawing on the grid layout', src: 'demo/update_draw.htm' },
{ name: 'Adopt colors', url: 'demo/adopt_colors.htm', title: 'Read set of ROOT colors before display of the object', src: true },
{ name: 'File hierarchy', url: 'demo/file_hierarchy.htm', title: 'Use HierarchyPainter to display file objects hierarchy', src: true },
{ name: 'File browser', url: 'demo/file_browser.htm', title: 'Use JSROOT layout for file objects hierarchy', src: true },
{ name: 'Context menu', url: 'demo/context_menu.htm', title: 'Custom context menu for TH2 histograms', src: true },
{ name: 'Zooming', url: 'demo/zoom_handler.htm', title: 'Redefine Zoom function to make synchronous zooming in other histogram', src: true },
{ name: 'User IO', url: `index.htm?file=${filepath}amore.root&item=moH1F_0;1&inject=../demo/amore.mjs`, title : 'Example of custom streamer and custom draw function (AMORE)', src: 'demo/amore.mjs' },
{ name: 'User class', url: 'index.htm?file=demo/custom/divhist.root&inject=demo/custom/divhist.js&item=DivHist', title : 'Example of draw function for custom user class', src: 'demo/custom/divhist.js' },
{ name: 'Store JSON', url: 'demo/store_json.htm', title: 'Store drawn objects into JSON, can be reused to display once again', src: true },
{ name: 'Geometry', url: 'demo/tgeo_build.htm', title: 'Example how one can create three.js model for TGeo object, using build() function from geom/TGeoPainter.mjs', src: 'demo/tgeo_build.htm' },
{ name: 'OpenUI5', url: 'demo/openui5/', title: 'Use of JSROOT graphics inside OpenUI5', src: 'demo/openui5/Readme.md' }
],
'TTree': [
{ name: 'TSelector', url: 'demo/read_tree.htm', title: 'Simple example of reading TTree using TSelector class', src: true, syn: 'custom_html_read_tree' },
{ name: 'User class', url: 'index.htm?file=https://root.cern/files/markus.root&item=_Event;1/Refs&opt=dump&inject=demo/gaudi.js', title : 'Example of user custom streamer for reading TTree data (Gaudi)', src: 'demo/gaudi.js', syn: 'custom_html_user_tree' },
{ name: 'Extract tracks', url: 'index.htm?inject=../demo/alice_esd.mjs&files=[https://root.cern/files/alice_ESDgeometry.root,https://root.cern/files/alice_ESDs.root]&item=[[0]/Gentle;1,[1]/esdTree;1]&opt=[,extract_tracks$]', title : 'Extract tracks from the custom tree', src: 'demo/alice_esd.mjs' }
],
'Node.js': [
{ name: 'Create SVG', title: 'Example how to read object from ROOT file and create SVG', src: 'demo/node/makesvg.js', srcload: 'github' },
{ name: 'Geometry SVG', title: 'Create of SVG file for geometry', src: 'demo/node/geomsvg.js', srcload: 'github' },
{ name: 'Images', title: 'Example of SVG, PNG, JPEG image creations with makeImage() function', src: 'demo/node/make_image.js', srcload: 'github' },
{ name: 'TTree draw', title: 'Example of TTree::Draw in node.js', src: 'demo/node/tree_draw.js', srcload: 'github' },
{ name: 'TTree dump', title: 'Example shows usage of TTree::Draw for values dump', src: 'demo/node/tree_dump.js', srcload: 'github' },
{ name: 'Selector', title: 'How to use TSelector class in node.js', src: 'demo/node/selector.js', srcload: 'github' },
{ name: 'Testing', title: 'JSROOT test suite with Node.js', src: 'https://github.com/linev/jsroot-test/', srcload: 'https://raw.githubusercontent.com/linev/jsroot-test/' + GetGithubBrunch(true) + 'test.js' }
],
'httpserver.C' : [
{ link: 'https://github.com/root-project/root/blob/master/tutorials/http/httpserver.C' },
{ name: 'Default page', url: 'httpserver.C/', title : 'Default HTML page of running httpserver.C macro (snapshot)' },
{ name: 'Sub-folder', url: 'httpserver.C/Files/job1.root/', title : 'Browse server objects from sub-folder' },
{ name: 'Display item', url: 'httpserver.C/?item=Files/job1.root/hpxpy&opt=colz&monitoring=1000', title : 'Display histogram and enable monitoring (not updating while snapshot is used)' },
{ name: 'No browser (1)', url: 'httpserver.C/Files/job1.root/hpxpy/draw.htm?opt=colz', title : 'Display item without browser, using provided draw.htm page' },
{ name: 'No browser (2)', url: 'httpserver.C/?nobrowser&item=Files/job1.root/hpxpy&opt=colz', title : 'Display item without browser, using nobrowser option and normal UI' },
{ name: 'Produce PNG', url: 'httpserver.C/Files/job1.root/hpxpy/root.png', title : 'Use normal ROOT drawing to produce PNG image' },
{ name: 'Access object members', url: 'httpserver.C/?item=Canvases/c1/fPrimitives/hpx', title : 'Show histogram from TCanvas lists of primitives (all other objects not cached in this example)' },
{ name: 'Get object title', url: 'httpserver.C/Files/job1.root/hpxpy/exe.json?method=GetTitle', title : 'Access object methods with exe.json request' },
{ name: 'Tree player', url: 'httpserver.C/?item=Files/job1.root/ntuple', title : 'Custom UI to execute TTree::Draw on running application' },
{ name: 'Read file', url: 'httpserver.C/?file=../../files/hsimple.root&layout=grid2x2&items=[hsimple.root/hpx;1,hsimple.root/hpxpy;1,job1/Files/job1.root/hpx,job1/Files/job1.root/hpxpy]&opts=[hist,col,hist,col]', title : 'Show histograms from ROOT file and THttpServer' },
{ name: 'Superimpose', url: 'httpserver.C/?file=../../files/hsimple.root&item=[job1/Files/job1.root/hpx,hsimple.root/hpx;1]&opt=logy', title : 'Superimpose objects from ROOT file and online server' }
],
'httpcontrol.C' : [
{ link: 'https://github.com/root-project/root/blob/master/tutorials/http/httpcontrol.C' },
{ name: 'Default page', url: 'httpcontrol.C/', title : 'Default HTML page of running httpscontrol.C macro (snapshot)' },
{ name: 'Text output', url: 'httpcontrol.C/?layout=simple&item=Debug&monitoring=0', title : 'Custom text output, using MathJax.js; also disable default monitoring' },
{ name: 'Text output (2)', url: 'httpcontrol.C/Debug/draw.htm', title : 'Custom text output without browser' }
],
'Go4ExampleSimple' : [
{ link: 'https://github.com/linev/go4/tree/master/Go4ExampleSimple' },
{ name: 'Main page', url: 'Go4ExampleSimple/', title : 'Main page of running Go4ExampleSimple example (snapshot)' },
{ name: 'Without status line', url: 'Go4ExampleSimple/?nostatus', title : 'Suppress output of status line' },
{ name: 'Draw condition', url: 'Go4ExampleSimple/?nostatus&item=Conditions/cHis1', title : 'Show TGo4Condition values correspondent histogram' },
{ name: 'Edit condition', url: 'Go4ExampleSimple/?item=Conditions/cHis1&opt=editor', title : 'Editing condition values' },
{ name: 'Edit parameter', url: 'Go4ExampleSimple/?item=Parameters/Par1&opt=editor', title : 'Editing parameter values' },
{ name: 'Debug output', url: 'Go4ExampleSimple/?item=Status/Log', title : 'Show analysis log output' },
{ name: 'Draw picture', url: 'Go4ExampleSimple/?nostatus&item=Pictures/condSet', title : 'Show TGo4Picture, which fetch and draw many other objects' },
{ name: 'Processing rate', url: 'Go4ExampleSimple/?item=Status/EventsRate', title : 'Show analysis events processing rate as TGraph' },
{ name: 'Analysis configuration', url: 'Go4ExampleSimple/?item=Control/Analysis', title : 'Change analysis configurations' },
{ name: 'Terminal', url: 'Go4ExampleSimple/?item=Control/Terminal', title : 'Analysis terminal output plus several control elements' }
]
};
async function ProcessClick(durl) {
let viewer = document.getElementById('apiviewer'),
srcviewer = document.getElementById('srcviewer');
viewer.style.display = '';
srcviewer.style.display = 'none';
srcviewer.innerHTML = '';
if (durl.indexOf('http') == 0)
viewer.src = durl;
else
viewer.src = jsroot_path + durl;
viewer.focus();
}
function SetPageTitle(title) {
let arr = document.getElementsByTagName('meta');
for (let k = 0; k < arr.length; ++k) {
let elem = arr[k];
if (elem.getAttribute('property') == 'og:title')
elem.setAttribute('content', title);
}
}
function SetListener(elem, shortname, durl) {
elem.addEventListener( 'click', event => {
event.preventDefault();
if (event.ctrlKey)
return window.open(elem.href.replace('?nobrowser&', '?'), '_blank');
window.location.hash = shortname;
if (elem.title) SetPageTitle(elem.title);
ProcessClick(durl).then(() => document.getElementById('panel').classList.toggle('open'));
});
}
async function ProcessSourceClick(entry) {
let srcload = entry.srcload || entry.src;
if (srcload === 'github')
srcload = 'https://raw.githubusercontent.com/root-project/jsroot/' + GetGithubBrunch() + entry.src;
httpRequest(srcload, 'text').then(res => {
let viewer = document.getElementById('apiviewer'),
srcviewer = document.getElementById('srcviewer');
viewer.href = '';
viewer.innerHTML = '';
viewer.style.display = 'none';
srcviewer.style.display = 'block';
srcviewer.innerHTML = '';
let lines = res.split('\n');
for (let k = 0; k < lines.length; ++k) {
let pre = document.createElement('pre');
pre.textContent = lines[k] || ' ';
pre.style = 'margin: 0px;';
srcviewer.appendChild(pre);
}
srcviewer.focus();
}).catch(() => {
console.error(`Cannot find ${srcload}`);
});
}
function SetSourceListener(elem, shortname, entry) {
elem.addEventListener( 'click', event => {
event.preventDefault();
if (event.ctrlKey)
return window.open(elem.href, '_blank');
window.location.hash = shortname;
ProcessSourceClick(entry).then(() => document.getElementById('panel').classList.toggle('open'));
});
}
function MakeShortName(name1, name2) {
return name1.toLowerCase().replaceAll(/[ .]/g, '_') + '_' +
name2.toLowerCase().replaceAll(/ \(3\)/g, '_3').replaceAll(/ \(2\)/g, '_2').replaceAll(/ \(1\)/g, '_1')
.replaceAll(/[\(\)]/g, '').replaceAll(/[. ]/g, '_');
}
let content = document.getElementById('content');
for (let key in examples) {
let opts = examples[key],
header = document.createElement('h2');
if ('link' in opts[0]) {
let ll = document.createElement('a');
ll.textContent = key;
ll.href = opts[0].link;
ll.style.color = 'green';
header.appendChild(ll);
} else {
header.textContent = key;
}
content.appendChild( header );
if (window.location.hash == '#' + key.toLowerCase())
header.scrollIntoView();
for (let n = 0; n < opts.length; ++n) {
let entry = opts[n];
if (!('name' in entry)) continue;
let shortname = MakeShortName(key, entry.name);
let url = entry.url, aaa = null;
if (url) {
aaa = document.createElement('a');
aaa.textContent = entry.name;
aaa.href = jsroot_path + url;
if (entry.title) aaa.title = entry.title;
content.appendChild(aaa);
SetListener(aaa, shortname, url);
}
if (entry.src) {
let srcurl = '', github = 'https://github.com/root-project/jsroot/blob/' + GetGithubBrunch();
if (entry.src === true) {
srcurl = github + url;
entry.src = source_dir + url;
} else if (entry.src.indexOf('http') === 0)
srcurl = entry.src;
else
srcurl = github + entry.src;
let saaa = document.createElement('a');
if (url) {
saaa.textContent = ' (src)';
saaa.title = 'Click to see source of the example';
} else {
saaa.textContent = entry.name;
saaa.title = entry.title;
}
saaa.href = srcurl;
content.appendChild(saaa);
SetSourceListener(saaa, shortname + '_src', entry);
if ((window.location.hash == '#' + shortname + '_src') || (entry.syn && window.location.hash == '#' + entry.syn + '_src')) {
saaa.focus();
if (entry.title) SetPageTitle(entry.title);
ProcessSourceClick(entry).then(() => document.getElementById('panel').classList.toggle('open'));
}
}
content.appendChild(document.createElement('br'));
if ((window.location.hash == '#' + shortname) || (entry.syn && window.location.hash == '#' + entry.syn) || (entry.syn2 && window.location.hash == '#' + entry.syn2)) {
if (aaa) aaa.focus();
ProcessClick(url).then(() => document.getElementById('panel').classList.toggle('open'));
}
}
}
</script>
</html>