Nettacker/nettacker/web/static/js/renderjson.js

217 lines
11 KiB
JavaScript

// Copyright © 2013-2017 David Caldwell <david@porkrind.org>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
// SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
// OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// Usage
// -----
// The module exports one entry point, the `renderjson()` function. It takes in
// the JSON you want to render as a single argument and returns an HTML
// element.
//
// Options
// -------
// renderjson.set_icons("+", "-")
// This Allows you to override the disclosure icons.
//
// renderjson.set_show_to_level(level)
// Pass the number of levels to expand when rendering. The default is 0, which
// starts with everything collapsed. As a special case, if level is the string
// "all" then it will start with everything expanded.
//
// renderjson.set_max_string_length(length)
// Strings will be truncated and made expandable if they are longer than
// `length`. As a special case, if `length` is the string "none" then
// there will be no truncation. The default is "none".
//
// renderjson.set_sort_objects(sort_bool)
// Sort objects by key (default: false)
//
// renderjson.set_replacer(replacer_function)
// Equivalent of JSON.stringify() `replacer` argument when it's a function
//
// renderjson.set_collapse_msg(collapse_function)
// Accepts a function (len:number):string => {} where len is the length of the
// object collapsed. Function should return the message displayed when a
// object is collapsed. The default message is "X items"
//
// renderjson.set_property_list(property_list)
// Equivalent of JSON.stringify() `replacer` argument when it's an array
//
// Theming
// -------
// The HTML output uses a number of classes so that you can theme it the way
// you'd like:
// .disclosure ("⊕", "⊖")
// .syntax (",", ":", "{", "}", "[", "]")
// .string (includes quotes)
// .number
// .boolean
// .key (object key)
// .keyword ("null", "undefined")
// .object.syntax ("{", "}")
// .array.syntax ("[", "]")
var module, window, define, renderjson=(function() {
var themetext = function(/* [class, text]+ */) {
var spans = [];
while (arguments.length)
spans.push(append(span(Array.prototype.shift.call(arguments)),
text(Array.prototype.shift.call(arguments))));
return spans;
};
var append = function(/* el, ... */) {
var el = Array.prototype.shift.call(arguments);
for (var a=0; a<arguments.length; a++)
if (arguments[a].constructor == Array)
append.apply(this, [el].concat(arguments[a]));
else
el.appendChild(arguments[a]);
return el;
};
var prepend = function(el, child) {
el.insertBefore(child, el.firstChild);
return el;
}
var isempty = function(obj, pl) { var keys = pl || Object.keys(obj);
for (var i in keys) if (Object.hasOwnProperty.call(obj, keys[i])) return false;
return true; }
var text = function(txt) { return document.createTextNode(txt) };
var div = function() { return document.createElement("div") };
var span = function(classname) { var s = document.createElement("span");
if (classname) s.className = classname;
return s; };
var A = function A(txt, classname, callback) { var a = document.createElement("a");
if (classname) a.className = classname;
a.appendChild(text(txt));
a.href = '#';
a.onclick = function(e) { callback(); if (e) e.stopPropagation(); return false; };
return a; };
function _renderjson(json, indent, dont_indent, show_level, options) {
var my_indent = dont_indent ? "" : indent;
var disclosure = function(open, placeholder, close, type, builder) {
var content;
var empty = span(type);
var show = function() { if (!content) append(empty.parentNode,
content = prepend(builder(),
A(options.hide, "disclosure",
function() { content.style.display="none";
empty.style.display="inline"; } )));
content.style.display="inline";
empty.style.display="none"; };
append(empty,
A(options.show, "disclosure", show),
themetext(type+ " syntax", open),
A(placeholder, null, show),
themetext(type+ " syntax", close));
var el = append(span(), text(my_indent.slice(0,-1)), empty);
if (show_level > 0 && type != "string")
show();
return el;
};
if (json === null) return themetext(null, my_indent, "keyword", "null");
if (json === void 0) return themetext(null, my_indent, "keyword", "undefined");
if (typeof(json) == "string" && json.length > options.max_string_length)
return disclosure('"', json.substr(0,options.max_string_length)+" ...", '"', "string", function () {
return append(span("string"), themetext(null, my_indent, "string", JSON.stringify(json)));
});
if (typeof(json) != "object" || [Number, String, Boolean, Date].indexOf(json.constructor) >= 0) // Strings, numbers and bools
return themetext(null, my_indent, typeof(json), JSON.stringify(json));
if (json.constructor == Array) {
if (json.length == 0) return themetext(null, my_indent, "array syntax", "[]");
return disclosure("[", options.collapse_msg(json.length), "]", "array", function () {
var as = append(span("array"), themetext("array syntax", "[", null, "\n"));
for (var i=0; i<json.length; i++)
append(as,
_renderjson(options.replacer.call(json, i, json[i]), indent+" ", false, show_level-1, options),
i != json.length-1 ? themetext("syntax", ",") : [],
text("\n"));
append(as, themetext(null, indent, "array syntax", "]"));
return as;
});
}
// object
if (isempty(json, options.property_list))
return themetext(null, my_indent, "object syntax", "{}");
return disclosure("{", options.collapse_msg(Object.keys(json).length), "}", "object", function () {
var os = append(span("object"), themetext("object syntax", "{", null, "\n"));
for (var k in json) var last = k;
var keys = options.property_list || Object.keys(json);
if (options.sort_objects)
keys = keys.sort();
for (var i in keys) {
var k = keys[i];
if (!(k in json)) continue;
append(os, themetext(null, indent+" ", "key", '"'+k+'"', "object syntax", ': '),
_renderjson(options.replacer.call(json, k, json[k]), indent+" ", true, show_level-1, options),
k != last ? themetext("syntax", ",") : [],
text("\n"));
}
append(os, themetext(null, indent, "object syntax", "}"));
return os;
});
}
var renderjson = function renderjson(json)
{
var options = new Object(renderjson.options);
options.replacer = typeof(options.replacer) == "function" ? options.replacer : function(k,v) { return v; };
var pre = append(document.createElement("pre"), _renderjson(json, "", false, options.show_to_level, options));
pre.className = "renderjson";
return pre;
}
renderjson.set_icons = function(show, hide) { renderjson.options.show = show;
renderjson.options.hide = hide;
return renderjson; };
renderjson.set_show_to_level = function(level) { renderjson.options.show_to_level = typeof level == "string" &&
level.toLowerCase() === "all" ? Number.MAX_VALUE
: level;
return renderjson; };
renderjson.set_max_string_length = function(length) { renderjson.options.max_string_length = typeof length == "string" &&
length.toLowerCase() === "none" ? Number.MAX_VALUE
: length;
return renderjson; };
renderjson.set_sort_objects = function(sort_bool) { renderjson.options.sort_objects = sort_bool;
return renderjson; };
renderjson.set_replacer = function(replacer) { renderjson.options.replacer = replacer;
return renderjson; };
renderjson.set_collapse_msg = function(collapse_msg) { renderjson.options.collapse_msg = collapse_msg;
return renderjson; };
renderjson.set_property_list = function(prop_list) { renderjson.options.property_list = prop_list;
return renderjson; };
// Backwards compatiblity. Use set_show_to_level() for new code.
renderjson.set_show_by_default = function(show) { renderjson.options.show_to_level = show ? Number.MAX_VALUE : 0;
return renderjson; };
renderjson.options = {};
renderjson.set_icons('⊕', '⊖');
renderjson.set_show_by_default(false);
renderjson.set_sort_objects(false);
renderjson.set_max_string_length("none");
renderjson.set_replacer(void 0);
renderjson.set_property_list(void 0);
renderjson.set_collapse_msg(function(len) { return len + " item" + (len==1 ? "" : "s") })
return renderjson;
})();
if (define) define({renderjson:renderjson})
else (module||{}).exports = (window||{}).renderjson = renderjson;