diff options
Diffstat (limited to 'libs/bower_components/jquery/src/callbacks.js')
-rw-r--r-- | libs/bower_components/jquery/src/callbacks.js | 197 |
1 files changed, 112 insertions, 85 deletions
diff --git a/libs/bower_components/jquery/src/callbacks.js b/libs/bower_components/jquery/src/callbacks.js index 9d12823d90..df7c7cf0ef 100644 --- a/libs/bower_components/jquery/src/callbacks.js +++ b/libs/bower_components/jquery/src/callbacks.js @@ -1,17 +1,14 @@ -define([ +define( [ "./core", "./var/rnotwhite" ], function( jQuery, rnotwhite ) { -// String to Object options format cache -var optionsCache = {}; - -// Convert String-formatted options into Object-formatted ones and store in cache +// Convert String-formatted options into Object-formatted ones function createOptions( options ) { - var object = optionsCache[ options ] = {}; + var object = {}; jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) { object[ flag ] = true; - }); + } ); return object; } @@ -42,156 +39,186 @@ jQuery.Callbacks = function( options ) { // Convert options from String-formatted to Object-formatted if needed // (we check in cache first) options = typeof options === "string" ? - ( optionsCache[ options ] || createOptions( options ) ) : + createOptions( options ) : jQuery.extend( {}, options ); var // Flag to know if list is currently firing firing, - // Last fire value (for non-forgettable lists) + + // Last fire value for non-forgettable lists memory, + // Flag to know if list was already fired fired, - // End of the loop when firing - firingLength, - // Index of currently firing callback (modified by remove if needed) - firingIndex, - // First callback to fire (used internally by add and fireWith) - firingStart, + + // Flag to prevent firing + locked, + // Actual callback list list = [], - // Stack of fire calls for repeatable lists - stack = !options.once && [], + + // Queue of execution data for repeatable lists + queue = [], + + // Index of currently firing callback (modified by add/remove as needed) + firingIndex = -1, + // Fire callbacks - fire = function( data ) { - memory = options.memory && data; - fired = true; - firingIndex = firingStart || 0; - firingStart = 0; - firingLength = list.length; - firing = true; - for ( ; list && firingIndex < firingLength; firingIndex++ ) { - if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) { - memory = false; // To prevent further calls using add - break; + 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; + } } } + + // Forget the data if we're done with it + if ( !options.memory ) { + memory = false; + } + firing = false; - if ( list ) { - if ( stack ) { - if ( stack.length ) { - fire( stack.shift() ); - } - } else if ( memory ) { + + // 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 ) { list = []; + + // Otherwise, this object is spent } else { - self.disable(); + list = ""; } } }, + // Actual Callbacks object self = { + // Add a callback or a collection of callbacks to the list add: function() { if ( list ) { - // First, we save the current length - var start = list.length; - (function add( args ) { + + // 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 ) { jQuery.each( args, function( _, arg ) { - var type = jQuery.type( arg ); - if ( type === "function" ) { + if ( jQuery.isFunction( arg ) ) { if ( !options.unique || !self.has( arg ) ) { list.push( arg ); } - } else if ( arg && arg.length && type !== "string" ) { + } else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) { + // Inspect recursively add( arg ); } - }); - })( arguments ); - // Do we need to add the callbacks to the - // current firing batch? - if ( firing ) { - firingLength = list.length; - // With memory, if we're not firing then - // we should call right away - } else if ( memory ) { - firingStart = start; - fire( memory ); + } ); + } )( arguments ); + + if ( memory && !firing ) { + fire(); } } return this; }, + // Remove a callback from the list remove: function() { - if ( list ) { - jQuery.each( arguments, function( _, arg ) { - var index; - while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) { - list.splice( index, 1 ); - // Handle firing indexes - if ( firing ) { - if ( index <= firingLength ) { - firingLength--; - } - if ( index <= firingIndex ) { - firingIndex--; - } - } + 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--; } - }); - } + } + } ); return this; }, + // 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 ) { - return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length ); + return fn ? + jQuery.inArray( fn, list ) > -1 : + list.length > 0; }, + // Remove all callbacks from the list empty: function() { - list = []; - firingLength = 0; + if ( list ) { + list = []; + } return this; }, - // Have the list do nothing anymore + + // Disable .fire and .add + // Abort any current/pending executions + // Clear all callbacks and values disable: function() { - list = stack = memory = undefined; + locked = queue = []; + list = memory = ""; return this; }, - // Is it disabled? disabled: function() { return !list; }, - // Lock the list in its current state + + // Disable .fire + // Also disable .add unless we have memory (since it would have no effect) + // Abort any pending executions lock: function() { - stack = undefined; + locked = queue = []; if ( !memory ) { - self.disable(); + list = memory = ""; } return this; }, - // Is it locked? locked: function() { - return !stack; + return !!locked; }, + // Call all callbacks with the given context and arguments fireWith: function( context, args ) { - if ( list && ( !fired || stack ) ) { + if ( !locked ) { args = args || []; args = [ context, args.slice ? args.slice() : args ]; - if ( firing ) { - stack.push( args ); - } else { - fire( args ); + queue.push( args ); + if ( !firing ) { + fire(); } } return this; }, + // Call all the callbacks with the given arguments fire: function() { self.fireWith( this, arguments ); return this; }, + // To know if the callbacks have already been called at least once fired: function() { return !!fired; @@ -202,4 +229,4 @@ jQuery.Callbacks = function( options ) { }; return jQuery; -}); +} ); |