gitlab-org--gitlab-foss/vendor/assets/javascripts/clipboard.js

/*!
 * clipboard.js v1.4.2
 * https://zenorocha.github.io/clipboard.js
 *
 * Licensed MIT © Zeno Rocha
 */
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Clipboard = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/**
 * Module dependencies.
 */

var closest = require('closest')
  , event = require('component-event');

/**
 * Delegate event `type` to `selector`
 * and invoke `fn(e)`. A callback function
 * is returned which may be passed to `.unbind()`.
 *
 * @param {Element} el
 * @param {String} selector
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

// Some events don't bubble, so we want to bind to the capture phase instead
// when delegating.
var forceCaptureEvents = ['focus', 'blur'];

exports.bind = function(el, selector, type, fn, capture){
  if (forceCaptureEvents.indexOf(type) !== -1) capture = true;

  return event.bind(el, type, function(e){
    var target = e.target || e.srcElement;
    e.delegateTarget = closest(target, selector, true, el);
    if (e.delegateTarget) fn.call(el, e);
  }, capture);
};

/**
 * Unbind event `type`'s callback `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @api public
 */

exports.unbind = function(el, type, fn, capture){
  if (forceCaptureEvents.indexOf(type) !== -1) capture = true;

  event.unbind(el, type, fn, capture);
};

},{"closest":2,"component-event":4}],2:[function(require,module,exports){
var matches = require('matches-selector')

module.exports = function (element, selector, checkYoSelf) {
  var parent = checkYoSelf ? element : element.parentNode

  while (parent && parent !== document) {
    if (matches(parent, selector)) return parent;
    parent = parent.parentNode
  }
}

},{"matches-selector":3}],3:[function(require,module,exports){

/**
 * Element prototype.
 */

var proto = Element.prototype;

/**
 * Vendor function.
 */

var vendor = proto.matchesSelector
  || proto.webkitMatchesSelector
  || proto.mozMatchesSelector
  || proto.msMatchesSelector
  || proto.oMatchesSelector;

/**
 * Expose `match()`.
 */

module.exports = match;

/**
 * Match `el` to `selector`.
 *
 * @param {Element} el
 * @param {String} selector
 * @return {Boolean}
 * @api public
 */

function match(el, selector) {
  if (vendor) return vendor.call(el, selector);
  var nodes = el.parentNode.querySelectorAll(selector);
  for (var i = 0; i < nodes.length; ++i) {
    if (nodes[i] == el) return true;
  }
  return false;
}
},{}],4:[function(require,module,exports){
var bind = window.addEventListener ? 'addEventListener' : 'attachEvent',
    unbind = window.removeEventListener ? 'removeEventListener' : 'detachEvent',
    prefix = bind !== 'addEventListener' ? 'on' : '';

/**
 * Bind `el` event `type` to `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

exports.bind = function(el, type, fn, capture){
  el[bind](prefix + type, fn, capture || false);
  return fn;
};

/**
 * Unbind `el` event `type`'s callback `fn`.
 *
 * @param {Element} el
 * @param {String} type
 * @param {Function} fn
 * @param {Boolean} capture
 * @return {Function}
 * @api public
 */

exports.unbind = function(el, type, fn, capture){
  el[unbind](prefix + type, fn, capture || false);
  return fn;
};
},{}],5:[function(require,module,exports){
function E () {
	// Keep this empty so it's easier to inherit from
  // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)
}

E.prototype = {
	on: function (name, callback, ctx) {
    var e = this.e || (this.e = {});

    (e[name] || (e[name] = [])).push({
      fn: callback,
      ctx: ctx
    });

    return this;
  },

  once: function (name, callback, ctx) {
    var self = this;
    var fn = function () {
      self.off(name, fn);
      callback.apply(ctx, arguments);
    };

    return this.on(name, fn, ctx);
  },

  emit: function (name) {
    var data = [].slice.call(arguments, 1);
    var evtArr = ((this.e || (this.e = {}))[name] || []).slice();
    var i = 0;
    var len = evtArr.length;

    for (i; i < len; i++) {
      evtArr[i].fn.apply(evtArr[i].ctx, data);
    }

    return this;
  },

  off: function (name, callback) {
    var e = this.e || (this.e = {});
    var evts = e[name];
    var liveEvents = [];

    if (evts && callback) {
      for (var i = 0, len = evts.length; i < len; i++) {
        if (evts[i].fn !== callback) liveEvents.push(evts[i]);
      }
    }

    // Remove event from queue to prevent memory leak
    // Suggested by https://github.com/lazd
    // Ref: https://github.com/scottcorgan/tiny-emitter/commit/c6ebfaa9bc973b33d110a84a307742b7cf94c953#commitcomment-5024910

    (liveEvents.length)
      ? e[name] = liveEvents
      : delete e[name];

    return this;
  }
};

module.exports = E;

},{}],6:[function(require,module,exports){
/**
 * Inner class which performs selection from either `text` or `target`
 * properties and then executes copy or cut operations.
 */
'use strict';

exports.__esModule = true;

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

var ClipboardAction = (function () {
    /**
     * @param {Object} options
     */

    function ClipboardAction(options) {
        _classCallCheck(this, ClipboardAction);

        this.resolveOptions(options);
        this.initSelection();
    }

    /**
     * Defines base properties passed from constructor.
     * @param {Object} options
     */

    ClipboardAction.prototype.resolveOptions = function resolveOptions() {
        var options = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

        this.action = options.action;
        this.emitter = options.emitter;
        this.target = options.target;
        this.text = options.text;
        this.trigger = options.trigger;

        this.selectedText = '';
    };

    /**
     * Decides which selection strategy is going to be applied based
     * on the existence of `text` and `target` properties.
     */

    ClipboardAction.prototype.initSelection = function initSelection() {
        if (this.text && this.target) {
            throw new Error('Multiple attributes declared, use either "target" or "text"');
        } else if (this.text) {
            this.selectFake();
        } else if (this.target) {
            this.selectTarget();
        } else {
            throw new Error('Missing required attributes, use either "target" or "text"');
        }
    };

    /**
     * Creates a fake textarea element, sets its value from `text` property,
     * and makes a selection on it.
     */

    ClipboardAction.prototype.selectFake = function selectFake() {
        var _this = this;

        this.removeFake();

        this.fakeHandler = document.body.addEventListener('click', function () {
            return _this.removeFake();
        });

        this.fakeElem = document.createElement('textarea');
        this.fakeElem.style.position = 'absolute';
        this.fakeElem.style.left = '-9999px';
        this.fakeElem.style.top = (window.pageYOffset || document.documentElement.scrollTop) + 'px';
        this.fakeElem.setAttribute('readonly', '');
        this.fakeElem.value = this.text;
        this.selectedText = this.text;

        document.body.appendChild(this.fakeElem);

        this.fakeElem.select();
        this.copyText();
    };

    /**
     * Only removes the fake element after another click event, that way
     * a user can hit `Ctrl+C` to copy because selection still exists.
     */

    ClipboardAction.prototype.removeFake = function removeFake() {
        if (this.fakeHandler) {
            document.body.removeEventListener('click');
            this.fakeHandler = null;
        }

        if (this.fakeElem) {
            document.body.removeChild(this.fakeElem);
            this.fakeElem = null;
        }
    };

    /**
     * Selects the content from element passed on `target` property.
     */

    ClipboardAction.prototype.selectTarget = function selectTarget() {
        if (this.target.nodeName === 'INPUT' || this.target.nodeName === 'TEXTAREA') {
            this.target.select();
            this.selectedText = this.target.value;
        } else {
            var range = document.createRange();
            var selection = window.getSelection();

            selection.removeAllRanges();
            range.selectNodeContents(this.target);
            selection.addRange(range);
            this.selectedText = selection.toString();
        }

        this.copyText();
    };

    /**
     * Executes the copy operation based on the current selection.
     */

    ClipboardAction.prototype.copyText = function copyText() {
        var succeeded = undefined;

        try {
            succeeded = document.execCommand(this.action);
        } catch (err) {
            succeeded = false;
        }

        this.handleResult(succeeded);
    };

    /**
     * Fires an event based on the copy operation result.
     * @param {Boolean} succeeded
     */

    ClipboardAction.prototype.handleResult = function handleResult(succeeded) {
        if (succeeded) {
            this.emitter.emit('success', {
                action: this.action,
                text: this.selectedText,
                trigger: this.trigger,
                clearSelection: this.clearSelection.bind(this)
            });
        } else {
            this.emitter.emit('error', {
                action: this.action,
                trigger: this.trigger,
                clearSelection: this.clearSelection.bind(this)
            });
        }
    };

    /**
     * Removes current selection and focus from `target` element.
     */

    ClipboardAction.prototype.clearSelection = function clearSelection() {
        if (this.target) {
            this.target.blur();
        }

        window.getSelection().removeAllRanges();
    };

    /**
     * Sets the `action` to be performed which can be either 'copy' or 'cut'.
     * @param {String} action
     */

    /**
     * Destroy lifecycle.
     */

    ClipboardAction.prototype.destroy = function destroy() {
        this.removeFake();
    };

    _createClass(ClipboardAction, [{
        key: 'action',
        set: function set() {
            var action = arguments.length <= 0 || arguments[0] === undefined ? 'copy' : arguments[0];

            this._action = action;

            if (this._action !== 'copy' && this._action !== 'cut') {
                throw new Error('Invalid "action" value, use either "copy" or "cut"');
            }
        },

        /**
         * Gets the `action` property.
         * @return {String}
         */
        get: function get() {
            return this._action;
        }

        /**
         * Sets the `target` property using an element
         * that will be have its content copied.
         * @param {Element} target
         */
    }, {
        key: 'target',
        set: function set(target) {
            if (target !== undefined) {
                if (target && typeof target === 'object' && target.nodeType === 1) {
                    this._target = target;
                } else {
                    throw new Error('Invalid "target" value, use a valid Element');
                }
            }
        },

        /**
         * Gets the `target` property.
         * @return {String|HTMLElement}
         */
        get: function get() {
            return this._target;
        }
    }]);

    return ClipboardAction;
})();

exports['default'] = ClipboardAction;
module.exports = exports['default'];

},{}],7:[function(require,module,exports){
'use strict';

exports.__esModule = true;

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var _clipboardAction = require('./clipboard-action');

var _clipboardAction2 = _interopRequireDefault(_clipboardAction);

var _delegateEvents = require('delegate-events');

var _delegateEvents2 = _interopRequireDefault(_delegateEvents);

var _tinyEmitter = require('tiny-emitter');

var _tinyEmitter2 = _interopRequireDefault(_tinyEmitter);

/**
 * Base class which takes a selector, delegates a click event to it,
 * and instantiates a new `ClipboardAction` on each click.
 */

var Clipboard = (function (_Emitter) {
    _inherits(Clipboard, _Emitter);

    /**
     * @param {String} selector
     * @param {Object} options
     */

    function Clipboard(selector, options) {
        _classCallCheck(this, Clipboard);

        _Emitter.call(this);

        this.resolveOptions(options);
        this.delegateClick(selector);
    }

    /**
     * Helper function to retrieve attribute value.
     * @param {String} suffix
     * @param {Element} element
     */

    /**
     * Defines if attributes would be resolved using internal setter functions
     * or custom functions that were passed in the constructor.
     * @param {Object} options
     */

    Clipboard.prototype.resolveOptions = function resolveOptions() {
        var options = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

        this.action = typeof options.action === 'function' ? options.action : this.defaultAction;
        this.target = typeof options.target === 'function' ? options.target : this.defaultTarget;
        this.text = typeof options.text === 'function' ? options.text : this.defaultText;
    };

    /**
     * Delegates a click event on the passed selector.
     * @param {String} selector
     */

    Clipboard.prototype.delegateClick = function delegateClick(selector) {
        var _this = this;

        this.binding = _delegateEvents2['default'].bind(document.body, selector, 'click', function (e) {
            return _this.onClick(e);
        });
    };

    /**
     * Undelegates a click event on body.
     * @param {String} selector
     */

    Clipboard.prototype.undelegateClick = function undelegateClick() {
        _delegateEvents2['default'].unbind(document.body, 'click', this.binding);
    };

    /**
     * Defines a new `ClipboardAction` on each click event.
     * @param {Event} e
     */

    Clipboard.prototype.onClick = function onClick(e) {
        if (this.clipboardAction) {
            this.clipboardAction = null;
        }

        this.clipboardAction = new _clipboardAction2['default']({
            action: this.action(e.delegateTarget),
            target: this.target(e.delegateTarget),
            text: this.text(e.delegateTarget),
            trigger: e.delegateTarget,
            emitter: this
        });
    };

    /**
     * Default `action` lookup function.
     * @param {Element} trigger
     */

    Clipboard.prototype.defaultAction = function defaultAction(trigger) {
        return getAttributeValue('action', trigger);
    };

    /**
     * Default `target` lookup function.
     * @param {Element} trigger
     */

    Clipboard.prototype.defaultTarget = function defaultTarget(trigger) {
        var selector = getAttributeValue('target', trigger);

        if (selector) {
            return document.querySelector(selector);
        }
    };

    /**
     * Default `text` lookup function.
     * @param {Element} trigger
     */

    Clipboard.prototype.defaultText = function defaultText(trigger) {
        return getAttributeValue('text', trigger);
    };

    /**
     * Destroy lifecycle.
     */

    Clipboard.prototype.destroy = function destroy() {
        this.undelegateClick();

        if (this.clipboardAction) {
            this.clipboardAction.destroy();
            this.clipboardAction = null;
        }
    };

    return Clipboard;
})(_tinyEmitter2['default']);

function getAttributeValue(suffix, element) {
    var attribute = 'data-clipboard-' + suffix;

    if (!element.hasAttribute(attribute)) {
        return;
    }

    return element.getAttribute(attribute);
}

exports['default'] = Clipboard;
module.exports = exports['default'];

},{"./clipboard-action":6,"delegate-events":1,"tiny-emitter":5}]},{},[7])(7)
});