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app/bower_components/jquery/src/callbacks.js
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define( [ |
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"./core", |
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"./var/rnothtmlwhite" ], function( jQuery, rnothtmlwhite ) { |
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"use strict"; |
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// Convert String-formatted options into Object-formatted ones |
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function createOptions( options ) { |
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var object = {}; jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) { |
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object[ flag ] = true; |
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} ); |
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return object; } /* * Create a callback list using the following parameters: * * options: an optional list of space-separated options that will change how * the callback list behaves or a more traditional option object * * By default a callback list will act like an event callback list and can be * "fired" multiple times. * * Possible options: * * once: will ensure the callback list can only be fired once (like a Deferred) * * memory: will keep track of previous values and will call any callback added * after the list has been fired right away with the latest "memorized" * values (like a Deferred) * * unique: will ensure a callback can only be added once (no duplicate in the list) * * stopOnFalse: interrupt callings when a callback returns false * */ jQuery.Callbacks = function( options ) { // Convert options from String-formatted to Object-formatted if needed // (we check in cache first) options = typeof options === "string" ? |
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createOptions( options ) : |
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jQuery.extend( {}, options ); var // Flag to know if list is currently firing firing, |
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// Last fire value for non-forgettable lists |
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memory, |
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// Flag to know if list was already fired fired, |
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// Flag to prevent firing locked, |
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// Actual callback list list = [], |
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// Queue of execution data for repeatable lists queue = [], // Index of currently firing callback (modified by add/remove as needed) firingIndex = -1, |
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// Fire callbacks |
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fire = function() { // Enforce single-firing locked = options.once; // Execute callbacks for all pending executions, // respecting firingIndex overrides and runtime changes fired = firing = true; for ( ; queue.length; firingIndex = -1 ) { memory = queue.shift(); while ( ++firingIndex < list.length ) { // Run callback and check for early termination if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false && options.stopOnFalse ) { // Jump to end and forget the data so .add doesn't re-fire firingIndex = list.length; memory = false; } |
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} } |
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// Forget the data if we're done with it if ( !options.memory ) { memory = false; } |
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firing = false; |
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// Clean up if we're done firing for good if ( locked ) { // Keep an empty list if we have data for future add calls if ( memory ) { |
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list = []; |
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// Otherwise, this object is spent |
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} else { |
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list = ""; |
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} } }, |
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// Actual Callbacks object self = { |
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// Add a callback or a collection of callbacks to the list add: function() { if ( list ) { |
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// If we have memory from a past run, we should fire after adding if ( memory && !firing ) { firingIndex = list.length - 1; queue.push( memory ); } ( function add( args ) { |
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jQuery.each( args, function( _, arg ) { |
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if ( jQuery.isFunction( arg ) ) { |
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if ( !options.unique || !self.has( arg ) ) { list.push( arg ); } |
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} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { |
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// Inspect recursively add( arg ); } |
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} ); } )( arguments ); if ( memory && !firing ) { fire(); |
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} } return this; }, |
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// Remove a callback from the list remove: function() { |
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jQuery.each( arguments, function( _, arg ) { var index; while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { list.splice( index, 1 ); // Handle firing indexes if ( index <= firingIndex ) { firingIndex--; |
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} |
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} } ); |
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return this; }, |
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// Check if a given callback is in the list. // If no argument is given, return whether or not list has callbacks attached. has: function( fn ) { |
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return fn ? jQuery.inArray( fn, list ) > -1 : list.length > 0; |
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}, |
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// Remove all callbacks from the list empty: function() { |
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if ( list ) { list = []; } |
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return this; }, |
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// Disable .fire and .add // Abort any current/pending executions // Clear all callbacks and values |
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disable: function() { |
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locked = queue = []; list = memory = ""; |
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return this; }, |
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disabled: function() { return !list; }, |
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// Disable .fire // Also disable .add unless we have memory (since it would have no effect) // Abort any pending executions |
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lock: function() { |
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locked = queue = []; if ( !memory && !firing ) { list = memory = ""; |
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} return this; }, |
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locked: function() { |
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return !!locked; |
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}, |
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// Call all callbacks with the given context and arguments fireWith: function( context, args ) { |
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if ( !locked ) { |
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args = args || []; args = [ context, args.slice ? args.slice() : args ]; |
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queue.push( args ); if ( !firing ) { fire(); |
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} } return this; }, |
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// Call all the callbacks with the given arguments fire: function() { self.fireWith( this, arguments ); return this; }, |
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// To know if the callbacks have already been called at least once fired: function() { return !!fired; } }; return self; }; return jQuery; |
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} ); |