Simplifies how removal when firing is handled. Removes exception handling (lets the list deadlock). Makes sure no external code can fire the list from a given index (only possible internally).
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parent
03c4fe9da9
commit
198290a9a7
1 changed files with 30 additions and 42 deletions
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@ -61,8 +61,10 @@ jQuery.Callbacks = function( flags, filter ) {
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memory,
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memory,
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// Flag to know if list is currently firing
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// Flag to know if list is currently firing
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firing,
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firing,
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// Index of cells to remove in the list after firing
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// First callback to fire (used internally by add and fireWith)
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deleteAfterFire,
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firingStart,
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// Index of currently firing callback (modified by remove if needed)
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firingIndex,
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// Add a list of callbacks to the list
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// Add a list of callbacks to the list
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add = function( args ) {
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add = function( args ) {
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var i,
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var i,
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@ -101,10 +103,10 @@ jQuery.Callbacks = function( flags, filter ) {
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// With memory, if we're not firing then
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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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// we should call right away
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if ( !firing && flags.memory && memory ) {
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if ( !firing && flags.memory && memory ) {
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// Trick the list into thinking it needs to be fired
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var tmp = memory;
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var tmp = memory;
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memory = undefined;
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memory = undefined;
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object.fireWith( tmp[ 0 ], tmp[ 1 ], length );
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firingStart = length;
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object.fireWith( tmp[ 0 ], tmp[ 1 ] );
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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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return this;
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@ -112,17 +114,14 @@ jQuery.Callbacks = function( flags, filter ) {
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// Remove a callback from the list
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// Remove a callback from the list
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remove: function( fn ) {
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remove: function( fn ) {
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if ( list ) {
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if ( list ) {
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var i = 0,
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for ( var i = 0; i < list.length; i++ ) {
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length = list.length;
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if ( fn === list[ i ][ 0 ] ) {
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for ( ; i < length; i++ ) {
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// Handle firingIndex
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if ( list[ i ] && fn === list[ i ][ 0 ] ) {
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if ( firing && i <= firingIndex ) {
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if ( firing ) {
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firingIndex--;
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list[ i ] = undefined;
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deleteAfterFire.push( i );
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} else {
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list.splice( i, 1 );
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i--;
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}
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}
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// Remove the element
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list.splice( i--, 1 );
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// If we have some unicity property then
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// If we have some unicity property then
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// we only need to do this once
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// we only need to do this once
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if ( flags.unique || flags.relocate ) {
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if ( flags.unique || flags.relocate ) {
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@ -139,7 +138,7 @@ jQuery.Callbacks = function( flags, filter ) {
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var i = 0,
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var i = 0,
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length = list.length;
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length = list.length;
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for ( ; i < length; i++ ) {
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for ( ; i < length; i++ ) {
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if ( list[ i ] && fn === list[ i ][ 0 ] ) {
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if ( fn === list[ i ][ 0 ] ) {
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return true;
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return true;
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}
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}
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}
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}
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@ -165,10 +164,9 @@ jQuery.Callbacks = function( flags, filter ) {
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return this;
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return this;
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},
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},
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// Call all callbacks with the given context and arguments
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// Call all callbacks with the given context and arguments
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fireWith: function( context, args, start /* internal */ ) {
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fireWith: function( context, args ) {
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var i,
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var start = firingStart;
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done,
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firingStart = 0;
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stoppedOnFalse;
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if ( list && stack && ( !flags.once || !memory && !firing ) ) {
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if ( list && stack && ( !flags.once || !memory && !firing ) ) {
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if ( firing ) {
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if ( firing ) {
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stack.push( [ context, args ] );
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stack.push( [ context, args ] );
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@ -176,24 +174,15 @@ jQuery.Callbacks = function( flags, filter ) {
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args = args || [];
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args = args || [];
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memory = !flags.memory || [ context, args ];
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memory = !flags.memory || [ context, args ];
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firing = true;
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firing = true;
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deleteAfterFire = [];
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for ( firingIndex = start || 0; list && firingIndex < list.length; firingIndex++ ) {
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try {
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if ( list[ firingIndex ][ 1 ].apply( context, args ) === false && flags.stopOnFalse ) {
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for ( i = start || 0; list && i < list.length; i++ ) {
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if (( stoppedOnFalse = list[ i ] &&
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list[ i ][ 1 ].apply( context, args ) === false &&
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flags.stopOnFalse )) {
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break;
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break;
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}
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}
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}
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}
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} finally {
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firing = false;
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firing = false;
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if ( list ) {
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if ( list ) {
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done = ( stoppedOnFalse || i >= list.length );
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for ( i = 0; i < deleteAfterFire.length; i++ ) {
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list.splice( deleteAfterFire[ i ], 1 );
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}
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if ( !flags.once ) {
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if ( !flags.once ) {
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if ( done && stack && stack.length ) {
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if ( stack && stack.length ) {
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object.fireWith.apply( this, stack.shift() );
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object.fireWith.apply( this, stack.shift() );
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}
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}
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} else if ( !flags.memory ) {
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} else if ( !flags.memory ) {
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@ -204,7 +193,6 @@ jQuery.Callbacks = function( flags, filter ) {
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}
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}
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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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return this;
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},
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},
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// Call all the callbacks with the given arguments
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// Call all the callbacks with the given arguments
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