FileSaver.js ➔ click - Code Metrics - flack/openpsa - Measure and Improve Code Quality continuously with Scrutinizer

FileSaver.js ➔ click A
last analyzed 2025-06-10 11:47 UTC

↳ Parent: static/midcom.grid/FileSaver.js

Complexity

Conditions

Size

Total Lines	9
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	7
dl	0
loc	9
rs	10
c	0
b	0
f	0
cc	2

(function (global, factory) {
  if (typeof define === "function" && define.amd) {
    define([], factory);
  } else if (typeof exports !== "undefined") {
    factory();
  } else {
    var mod = {
      exports: {}
    };
    factory();
    global.FileSaver = mod.exports;
  }
})(this, function () {
  "use strict";

  /*
  * FileSaver.js
  * A saveAs() FileSaver implementation.
  *
  * By Eli Grey, http://eligrey.com
  *
  * License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)
  * source  : http://purl.eligrey.com/github/FileSaver.js
  */
  // The one and only way of getting global scope in all enviorment
  // https://stackoverflow.com/q/3277182/1008999
  var _global = function () {
    // some use content security policy to disable eval
    try {
      return Function('return this')() || (42, eval)('this');
var a,b,c;

a = 1, b = 1,  c= 3;
    } catch (e) {
      // every global should have circular reference
      // used for checking if someone writes var window = {}; var self = {}
      return typeof window === 'object' && window.window === window ? window : typeof self === 'object' && self.self === self ? self : typeof global === 'object' && global.global === global ? global : this;
    }
  }();

  function bom(blob, opts) {
    if (typeof opts === 'undefined') opts = {
      autoBom: false
    };else if (typeof opts !== 'object') {
      console.warn('Depricated: Expected third argument to be a object');
      opts = {
        autoBom: !opts
      };
    } // prepend BOM for UTF-8 XML and text/* types (including HTML)
    // note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF

    if (opts.autoBom && /^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(blob.type)) {
      return new Blob([String.fromCharCode(0xFEFF), blob], {
        type: blob.type
      });
    }

    return blob;
  }

  function download(url, name, opts) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url);
    xhr.responseType = 'blob';

    xhr.onload = function () {
      saveAs(xhr.response, name, opts);
    };

    xhr.onerror = function () {
      console.error('could not download file');
    };

    xhr.send();
  }

  function corsEnabled(url) {
    var xhr = new XMLHttpRequest(); // use sync to avoid popup blocker

    xhr.open('HEAD', url, false);
    xhr.send();
    return xhr.status >= 200 && xhr.status <= 299;
  } // `a.click()` don't work for all browsers (#465)


  function click(node) {
    try {
      node.dispatchEvent(new MouseEvent('click'));
    } catch (e) {
      var evt = document.createEvent('MouseEvents');
      evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80, 20, false, false, false, false, 0, null);
      node.dispatchEvent(evt);
    }
  }

  var saveAs = _global.saveAs || // probably in some web worker

  typeof window !== 'object' || window !== _global ? function saveAs() {}
  /* noop */
  // Use download attribute first if possible (#193 Lumia mobile)
  : 'download' in HTMLAnchorElement.prototype ? function saveAs(blob, name, opts) {
    var URL = _global.URL || _global.webkitURL;
    var a = document.createElement('a');
    name = name || blob.name || 'download';
    a.download = name;
    a.rel = 'noopener'; // tabnabbing
    // TODO: detect chrome extensions & packaged apps
    // a.target = '_blank'

    if (typeof blob === 'string') {
      // Support regular links
      a.href = blob;

      if (a.origin !== location.origin) {
        corsEnabled(a.href) ? download(blob, name, opts) : click(a, a.target = '_blank');

      } else {
        click(a);
      }
    } else {
      // Support blobs
      a.href = URL.createObjectURL(blob);
      setTimeout(function () {
        URL.revokeObjectURL(a.href);
      }, 4E4); // 40s

      setTimeout(function () {
        click(a);
      }, 0);
    }
  } // Use msSaveOrOpenBlob as a second approch
  : 'msSaveOrOpenBlob' in navigator ? function saveAs(blob, name, opts) {
    name = name || blob.name || 'download';

    if (typeof blob === 'string') {
      if (corsEnabled(blob)) {
        download(blob, name, opts);
      } else {
        var a = document.createElement('a');
        a.href = blob;
        a.target = '_blank';
        setTimeout(function () {
          clikc(a);
        });
      }
    } else {
      navigator.msSaveOrOpenBlob(bom(blob, opts), name);
    }
  } // Fallback to using FileReader and a popup
  : function saveAs(blob, name, opts, popup) {
    // Open a popup immediately do go around popup blocker
    // Mostly only avalible on user interaction and the fileReader is async so...
    popup = popup || open('', '_blank');

    if (popup) {
      popup.document.title = popup.document.body.innerText = 'downloading...';
    }

    if (typeof blob === 'string') return download(blob, name, opts);
    var force = blob.type === 'application/octet-stream';

    var isSafari = /constructor/i.test(_global.HTMLElement) || _global.safari;

    var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent);

    if ((isChromeIOS || force && isSafari) && typeof FileReader === 'object') {
      // Safari doesn't allow downloading of blob urls
      var reader = new FileReader();

      reader.onloadend = function () {
        var url = reader.result;
        url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;');
        if (popup) popup.location.href = url;else location = url;
        popup = null; // reverse-tabnabbing #460
      };

      reader.readAsDataURL(blob);

    } else {
      var URL = _global.URL || _global.webkitURL;
      var url = URL.createObjectURL(blob);
      if (popup) popup.location = url;else location.href = url;
      popup = null; // reverse-tabnabbing #460

      setTimeout(function () {
        URL.revokeObjectURL(url);
      }, 4E4); // 40s

    }
  };
  // openpsa-modified: See https://github.com/eligrey/FileSaver.js/issues/475
  _global.saveAs = saveAs.saveAs = saveAs;
});


1			(function (global, factory) {
2			if (typeof define === "function" && define.amd) {
3			define([], factory);
4			} else if (typeof exports !== "undefined") {
5			factory();
6			} else {
7			var mod = {
8			exports: {}
9			};
10			factory();
11			global.FileSaver = mod.exports;
12			}
13			})(this, function () {
14			"use strict";
15
16			/*
17			* FileSaver.js
18			* A saveAs() FileSaver implementation.
19			*
20			* By Eli Grey, http://eligrey.com
21			*
22			* License : https://github.com/eligrey/FileSaver.js/blob/master/LICENSE.md (MIT)
23			* source : http://purl.eligrey.com/github/FileSaver.js
24			*/
25			// The one and only way of getting global scope in all enviorment
26			// https://stackoverflow.com/q/3277182/1008999
27			var _global = function () {
28			// some use content security policy to disable eval
29			try {
30			return Function('return this')() \|\| (42, eval)('this');
			0 ignored issues – show Comprehensibility introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report Usage of the sequence operator is discouraged, since it may lead to obfuscated code. The sequence or comma operator allows the inclusion of multiple expressions where only is permitted. The result of the sequence is the value of the last expression. This operator is most often used in `for` statements. Used in another places it can make code hard to read, especially when people do not realize it even exists as a seperate operator. This check looks for usage of the sequence operator in locations where it is not necessary and could be replaced by a series of expressions or statements. var a,b,c; a = 1, b = 1, c= 3; could just as well be written as: var a,b,c; a = 1; b = 1; c = 3; To learn more about the sequence operator, please refer to the MDN. Loading history... Security Performance introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report Calls to `eval` are slow and potentially dangerous, especially on untrusted code. Please consider whether there is another way to achieve your goal. Loading history... Performance Best Practice introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report Using `new Function()` to create a function is slow and difficult to debug. Such functions do not create a closure. Consider using another way to define your function. Loading history...
31			} catch (e) {
32			// every global should have circular reference
33			// used for checking if someone writes var window = {}; var self = {}
34			return typeof window === 'object' && window.window === window ? window : typeof self === 'object' && self.self === self ? self : typeof global === 'object' && global.global === global ? global : this;
35			}
36			}();
37
38			function bom(blob, opts) {
39			if (typeof opts === 'undefined') opts = {
40			autoBom: false
41			};else if (typeof opts !== 'object') {
42			console.warn('Depricated: Expected third argument to be a object');
43			opts = {
44			autoBom: !opts
45			};
46			} // prepend BOM for UTF-8 XML and text/* types (including HTML)
47			// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
48
49			if (opts.autoBom && /^\s(?:text\/\S\|application\/xml\|\S\/\S\+xml)\s;.charset\s=\sutf-8/i.test(blob.type)) {
50			return new Blob([String.fromCharCode(0xFEFF), blob], {
51			type: blob.type
52			});
53			}
54
55			return blob;
56			}
57
58			function download(url, name, opts) {
59			var xhr = new XMLHttpRequest();
60			xhr.open('GET', url);
61			xhr.responseType = 'blob';
62
63			xhr.onload = function () {
64			saveAs(xhr.response, name, opts);
65			};
66
67			xhr.onerror = function () {
68			console.error('could not download file');
69			};
70
71			xhr.send();
72			}
73
74			function corsEnabled(url) {
75			var xhr = new XMLHttpRequest(); // use sync to avoid popup blocker
76
77			xhr.open('HEAD', url, false);
78			xhr.send();
79			return xhr.status >= 200 && xhr.status <= 299;
80			} // `a.click()` don't work for all browsers (#465)
81
82
83			function click(node) {
84			try {
85			node.dispatchEvent(new MouseEvent('click'));
86			} catch (e) {
87			var evt = document.createEvent('MouseEvents');
88			evt.initMouseEvent('click', true, true, window, 0, 0, 0, 80, 20, false, false, false, false, 0, null);
89			node.dispatchEvent(evt);
90			}
91			}
92
93			var saveAs = _global.saveAs \|\| // probably in some web worker
			0 ignored issues – show Comprehensibility Naming Best Practice introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report The variable `saveAs` already seems to be declared on line `94`. Consider using another variable name or omitting the `var` keyword. This check looks for variables that are declared in multiple lines. There may be several reasons for this. In the simplest case the variable name was reused by mistake. This may lead to very hard to locate bugs. If you want to reuse a variable for another purpose, consider declaring it at or near the top of your function and just assigning to it subsequently so it is always declared. Loading history...
94			typeof window !== 'object' \|\| window !== _global ? function saveAs() {}
95			/* noop */
96			// Use download attribute first if possible (#193 Lumia mobile)
97			: 'download' in HTMLAnchorElement.prototype ? function saveAs(blob, name, opts) {
98			var URL = _global.URL \|\| _global.webkitURL;
99			var a = document.createElement('a');
100			name = name \|\| blob.name \|\| 'download';
101			a.download = name;
102			a.rel = 'noopener'; // tabnabbing
103			// TODO: detect chrome extensions & packaged apps
104			// a.target = '_blank'
105
106			if (typeof blob === 'string') {
107			// Support regular links
108			a.href = blob;
109
110			if (a.origin !== location.origin) {
111			corsEnabled(a.href) ? download(blob, name, opts) : click(a, a.target = '_blank');
			0 ignored issues – show Bug introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report The call to `click` seems to have too many arguments starting with `a.target = "_blank"`. Loading history...
112			} else {
113			click(a);
114			}
115			} else {
116			// Support blobs
117			a.href = URL.createObjectURL(blob);
118			setTimeout(function () {
119			URL.revokeObjectURL(a.href);
120			}, 4E4); // 40s
121
122			setTimeout(function () {
123			click(a);
124			}, 0);
125			}
126			} // Use msSaveOrOpenBlob as a second approch
127			: 'msSaveOrOpenBlob' in navigator ? function saveAs(blob, name, opts) {
128			name = name \|\| blob.name \|\| 'download';
129
130			if (typeof blob === 'string') {
131			if (corsEnabled(blob)) {
132			download(blob, name, opts);
133			} else {
134			var a = document.createElement('a');
135			a.href = blob;
136			a.target = '_blank';
137			setTimeout(function () {
138			clikc(a);
139			});
140			}
141			} else {
142			navigator.msSaveOrOpenBlob(bom(blob, opts), name);
143			}
144			} // Fallback to using FileReader and a popup
145			: function saveAs(blob, name, opts, popup) {
146			// Open a popup immediately do go around popup blocker
147			// Mostly only avalible on user interaction and the fileReader is async so...
148			popup = popup \|\| open('', '_blank');
149
150			if (popup) {
151			popup.document.title = popup.document.body.innerText = 'downloading...';
152			}
153
154			if (typeof blob === 'string') return download(blob, name, opts);
155			var force = blob.type === 'application/octet-stream';
156
157			var isSafari = /constructor/i.test(_global.HTMLElement) \|\| _global.safari;
158
159			var isChromeIOS = /CriOS\/[\d]+/.test(navigator.userAgent);
160
161			if ((isChromeIOS \|\| force && isSafari) && typeof FileReader === 'object') {
162			// Safari doesn't allow downloading of blob urls
163			var reader = new FileReader();
164
165			reader.onloadend = function () {
166			var url = reader.result;
167			url = isChromeIOS ? url : url.replace(/^data:[^;]*;/, 'data:attachment/file;');
168			if (popup) popup.location.href = url;else location = url;
169			popup = null; // reverse-tabnabbing #460
170			};
171
172			reader.readAsDataURL(blob);
			0 ignored issues – show Best Practice introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report There is no `return` statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding `return undefined;` explicitly. Loading history...
173			} else {
174			var URL = _global.URL \|\| _global.webkitURL;
175			var url = URL.createObjectURL(blob);
176			if (popup) popup.location = url;else location.href = url;
177			popup = null; // reverse-tabnabbing #460
178
179			setTimeout(function () {
180			URL.revokeObjectURL(url);
181			}, 4E4); // 40s
			0 ignored issues – show Best Practice introduced 2018-10-09 09:36 UTC by Report Bug Copy Issue Report There is no `return` statement in this branch, but you do return something in other branches. Did you maybe miss it? If you do not want to return anything, consider adding `return undefined;` explicitly. Loading history...
182			}
183			};
184			// openpsa-modified: See https://github.com/eligrey/FileSaver.js/issues/475
185			_global.saveAs = saveAs.saveAs = saveAs;
186			});
187

flack / openpsa

FileSaver.js ➔ click A last analyzed 2025-06-10 11:47 UTC

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FileSaver.js ➔ click A
last analyzed 2025-06-10 11:47 UTC