mirror of
https://github.com/billz/raspap-webgui.git
synced 2023-10-10 13:37:24 +02:00
206 lines
5.4 KiB
JavaScript
206 lines
5.4 KiB
JavaScript
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define([
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"./core",
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"./var/rnotwhite"
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], function( jQuery, rnotwhite ) {
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// String to Object options format cache
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var optionsCache = {};
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// Convert String-formatted options into Object-formatted ones and store in cache
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function createOptions( options ) {
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var object = optionsCache[ options ] = {};
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jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
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object[ flag ] = true;
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});
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return object;
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}
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/*
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* Create a callback list using the following parameters:
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*
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* options: an optional list of space-separated options that will change how
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* the callback list behaves or a more traditional option object
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*
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* By default a callback list will act like an event callback list and can be
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* "fired" multiple times.
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*
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* Possible options:
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*
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* once: will ensure the callback list can only be fired once (like a Deferred)
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*
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* memory: will keep track of previous values and will call any callback added
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* after the list has been fired right away with the latest "memorized"
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* values (like a Deferred)
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*
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* unique: will ensure a callback can only be added once (no duplicate in the list)
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*
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* stopOnFalse: interrupt callings when a callback returns false
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*
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*/
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jQuery.Callbacks = function( options ) {
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// Convert options from String-formatted to Object-formatted if needed
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// (we check in cache first)
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options = typeof options === "string" ?
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( optionsCache[ options ] || createOptions( options ) ) :
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jQuery.extend( {}, options );
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var // Last fire value (for non-forgettable lists)
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memory,
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// Flag to know if list was already fired
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fired,
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// Flag to know if list is currently firing
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firing,
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// First callback to fire (used internally by add and fireWith)
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firingStart,
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// End of the loop when firing
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firingLength,
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// Index of currently firing callback (modified by remove if needed)
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firingIndex,
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// Actual callback list
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list = [],
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// Stack of fire calls for repeatable lists
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stack = !options.once && [],
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// Fire callbacks
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fire = function( data ) {
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memory = options.memory && data;
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fired = true;
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firingIndex = firingStart || 0;
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firingStart = 0;
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firingLength = list.length;
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firing = true;
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for ( ; list && firingIndex < firingLength; firingIndex++ ) {
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if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
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memory = false; // To prevent further calls using add
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break;
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}
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}
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firing = false;
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if ( list ) {
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if ( stack ) {
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if ( stack.length ) {
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fire( stack.shift() );
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}
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} else if ( memory ) {
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list = [];
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} else {
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self.disable();
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}
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}
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},
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// Actual Callbacks object
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self = {
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// Add a callback or a collection of callbacks to the list
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add: function() {
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if ( list ) {
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// First, we save the current length
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var start = list.length;
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(function add( args ) {
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jQuery.each( args, function( _, arg ) {
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var type = jQuery.type( arg );
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if ( type === "function" ) {
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if ( !options.unique || !self.has( arg ) ) {
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list.push( arg );
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}
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} else if ( arg && arg.length && type !== "string" ) {
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// Inspect recursively
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add( arg );
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}
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});
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})( arguments );
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// Do we need to add the callbacks to the
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// current firing batch?
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if ( firing ) {
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firingLength = list.length;
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// With memory, if we're not firing then
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// we should call right away
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} else if ( memory ) {
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firingStart = start;
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fire( memory );
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}
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}
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return this;
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},
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// Remove a callback from the list
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remove: function() {
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if ( list ) {
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jQuery.each( arguments, function( _, arg ) {
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var index;
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while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
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list.splice( index, 1 );
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// Handle firing indexes
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if ( firing ) {
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if ( index <= firingLength ) {
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firingLength--;
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}
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if ( index <= firingIndex ) {
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firingIndex--;
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}
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}
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}
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});
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}
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return this;
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},
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// Check if a given callback is in the list.
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// If no argument is given, return whether or not list has callbacks attached.
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has: function( fn ) {
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return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
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},
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// Remove all callbacks from the list
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empty: function() {
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list = [];
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firingLength = 0;
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return this;
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},
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// Have the list do nothing anymore
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disable: function() {
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list = stack = memory = undefined;
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return this;
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},
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// Is it disabled?
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disabled: function() {
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return !list;
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},
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// Lock the list in its current state
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lock: function() {
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stack = undefined;
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if ( !memory ) {
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self.disable();
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}
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return this;
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},
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// Is it locked?
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locked: function() {
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return !stack;
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},
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// Call all callbacks with the given context and arguments
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fireWith: function( context, args ) {
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if ( list && ( !fired || stack ) ) {
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args = args || [];
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args = [ context, args.slice ? args.slice() : args ];
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if ( firing ) {
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stack.push( args );
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} else {
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fire( args );
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}
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}
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return this;
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},
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// Call all the callbacks with the given arguments
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fire: function() {
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self.fireWith( this, arguments );
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return this;
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},
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// To know if the callbacks have already been called at least once
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fired: function() {
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return !!fired;
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}
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};
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return self;
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};
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return jQuery;
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});
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