mirror of
https://github.com/jellyfin/jellyfin-web.git
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359 lines
11 KiB
JavaScript
359 lines
11 KiB
JavaScript
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QUnit.module( "callbacks", {
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teardown: moduleTeardown
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} );
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( function() {
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var output,
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addToOutput = function( string ) {
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return function() {
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output += string;
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};
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},
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outputA = addToOutput( "A" ),
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outputB = addToOutput( "B" ),
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outputC = addToOutput( "C" ),
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tests = {
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"": "XABC X XABCABCC X XBB X XABA X XX",
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"once": "XABC X X X X X XABA X XX",
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"memory": "XABC XABC XABCABCCC XA XBB XB XABA XC XX",
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"unique": "XABC X XABCA X XBB X XAB X X",
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"stopOnFalse": "XABC X XABCABCC X XBB X XA X XX",
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"once memory": "XABC XABC X XA X XA XABA XC XX",
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"once unique": "XABC X X X X X XAB X X",
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"once stopOnFalse": "XABC X X X X X XA X XX",
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"memory unique": "XABC XA XABCA XA XBB XB XAB XC X",
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"memory stopOnFalse": "XABC XABC XABCABCCC XA XBB XB XA X XX",
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"unique stopOnFalse": "XABC X XABCA X XBB X XA X X"
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},
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filters = {
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"no filter": undefined,
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"filter": function( fn ) {
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return function() {
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return fn.apply( this, arguments );
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};
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}
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};
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function showFlags( flags ) {
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if ( typeof flags === "string" ) {
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return "'" + flags + "'";
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}
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var output = [], key;
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for ( key in flags ) {
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output.push( "'" + key + "': " + flags[ key ] );
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}
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return "{ " + output.join( ", " ) + " }";
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}
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jQuery.each( tests, function( strFlags, resultString ) {
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var objectFlags = {};
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jQuery.each( strFlags.split( " " ), function() {
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if ( this.length ) {
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objectFlags[ this ] = true;
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}
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} );
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jQuery.each( filters, function( filterLabel ) {
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jQuery.each( {
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"string": strFlags,
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"object": objectFlags
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}, function( flagsTypes, flags ) {
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QUnit.test( "jQuery.Callbacks( " + showFlags( flags ) + " ) - " + filterLabel, function( assert ) {
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assert.expect( 28 );
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var cblist,
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results = resultString.split( /\s+/ );
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// Basic binding and firing
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output = "X";
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cblist = jQuery.Callbacks( flags );
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assert.strictEqual( cblist.locked(), false, ".locked() initially false" );
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assert.strictEqual( cblist.disabled(), false, ".disabled() initially false" );
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assert.strictEqual( cblist.fired(), false, ".fired() initially false" );
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cblist.add(function( str ) {
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output += str;
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});
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assert.strictEqual( cblist.fired(), false, ".fired() still false after .add" );
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cblist.fire( "A" );
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assert.strictEqual( output, "XA", "Basic binding and firing" );
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assert.strictEqual( cblist.fired(), true, ".fired() detects firing" );
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output = "X";
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cblist.disable();
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cblist.add(function( str ) {
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output += str;
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});
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assert.strictEqual( output, "X", "Adding a callback after disabling" );
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cblist.fire("A");
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assert.strictEqual( output, "X", "Firing after disabling" );
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assert.strictEqual( cblist.disabled(), true, ".disabled() becomes true" );
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assert.strictEqual( cblist.locked(), true, "disabling locks" );
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// Emptying while firing (#13517)
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cblist = jQuery.Callbacks( flags );
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cblist.add( cblist.empty );
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cblist.add( function() {
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assert.ok( false, "not emptied" );
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} );
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cblist.fire();
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// Disabling while firing
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cblist = jQuery.Callbacks( flags );
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cblist.add( cblist.disable );
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cblist.add( function() {
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assert.ok( false, "not disabled" );
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} );
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cblist.fire();
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// Basic binding and firing (context, arguments)
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add(function() {
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assert.equal( this, window, "Basic binding and firing (context)" );
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output += Array.prototype.join.call( arguments, "" );
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});
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cblist.fireWith( window, [ "A", "B" ] );
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assert.strictEqual( output, "XAB", "Basic binding and firing (arguments)" );
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// fireWith with no arguments
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output = "";
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cblist = jQuery.Callbacks( flags );
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cblist.add(function() {
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assert.equal( this, window, "fireWith with no arguments (context is window)" );
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assert.strictEqual( arguments.length, 0, "fireWith with no arguments (no arguments)" );
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});
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cblist.fireWith();
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// Basic binding, removing and firing
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add( outputA, outputB, outputC );
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cblist.remove( outputB, outputC );
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cblist.fire();
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assert.strictEqual( output, "XA", "Basic binding, removing and firing" );
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// Empty
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add( outputA );
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cblist.add( outputB );
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cblist.add( outputC );
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cblist.empty();
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cblist.fire();
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assert.strictEqual( output, "X", "Empty" );
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// Locking
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add(function( str ) {
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output += str;
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});
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cblist.lock();
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cblist.add(function( str ) {
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output += str;
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});
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cblist.fire("A");
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cblist.add(function( str ) {
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output += str;
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});
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assert.strictEqual( output, "X", "Lock early" );
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assert.strictEqual( cblist.locked(), true, "Locking reflected in accessor" );
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// Ordering
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add(function() {
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cblist.add( outputC );
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outputA();
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}, outputB );
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cblist.fire();
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assert.strictEqual( output, results.shift(), "Proper ordering" );
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// Add and fire again
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output = "X";
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cblist.add(function() {
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cblist.add( outputC );
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outputA();
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}, outputB );
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assert.strictEqual( output, results.shift(), "Add after fire" );
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output = "X";
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cblist.fire();
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assert.strictEqual( output, results.shift(), "Fire again" );
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// Multiple fire
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add(function( str ) {
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output += str;
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});
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cblist.fire("A");
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assert.strictEqual( output, "XA", "Multiple fire (first fire)" );
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output = "X";
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cblist.add(function( str ) {
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output += str;
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});
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assert.strictEqual( output, results.shift(), "Multiple fire (first new callback)" );
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output = "X";
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cblist.fire("B");
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assert.strictEqual( output, results.shift(), "Multiple fire (second fire)" );
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output = "X";
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cblist.add(function( str ) {
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output += str;
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});
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assert.strictEqual( output, results.shift(), "Multiple fire (second new callback)" );
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// Return false
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output = "X";
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cblist = jQuery.Callbacks( flags );
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cblist.add( outputA, function() { return false; }, outputB );
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cblist.add( outputA );
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cblist.fire();
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assert.strictEqual( output, results.shift(), "Callback returning false" );
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// Add another callback (to control lists with memory do not fire anymore)
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output = "X";
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cblist.add( outputC );
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assert.strictEqual( output, results.shift(), "Adding a callback after one returned false" );
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// Callbacks are not iterated
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output = "";
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function handler() {
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output += "X";
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}
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handler.method = function() {
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output += "!";
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};
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cblist = jQuery.Callbacks( flags );
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cblist.add( handler );
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cblist.add( handler );
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cblist.fire();
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assert.strictEqual( output, results.shift(), "No callback iteration" );
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} );
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} );
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} );
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} );
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} )();
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QUnit.test( "jQuery.Callbacks( options ) - options are copied", function( assert ) {
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assert.expect( 1 );
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var options = {
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"unique": true
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},
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cb = jQuery.Callbacks( options ),
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count = 0,
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fn = function() {
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assert.ok( !( count++ ), "called once" );
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};
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options[ "unique" ] = false;
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cb.add( fn, fn );
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cb.fire();
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} );
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QUnit.test( "jQuery.Callbacks.fireWith - arguments are copied", function( assert ) {
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assert.expect( 1 );
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var cb = jQuery.Callbacks( "memory" ),
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args = [ "hello" ];
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cb.fireWith( null, args );
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args[ 0 ] = "world";
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cb.add( function( hello ) {
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assert.strictEqual( hello, "hello", "arguments are copied internally" );
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} );
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} );
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QUnit.test( "jQuery.Callbacks.remove - should remove all instances", function( assert ) {
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assert.expect( 1 );
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var cb = jQuery.Callbacks();
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function fn() {
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assert.ok( false, "function wasn't removed" );
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}
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cb.add( fn, fn, function() {
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assert.ok( true, "end of test" );
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} ).remove( fn ).fire();
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} );
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QUnit.test( "jQuery.Callbacks.has", function( assert ) {
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assert.expect( 13 );
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var cb = jQuery.Callbacks();
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function getA() {
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return "A";
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}
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function getB() {
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return "B";
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}
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function getC() {
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return "C";
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}
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cb.add( getA, getB, getC );
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assert.strictEqual( cb.has(), true, "No arguments to .has() returns whether callback function(s) are attached or not" );
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assert.strictEqual( cb.has( getA ), true, "Check if a specific callback function is in the Callbacks list" );
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cb.remove( getB );
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assert.strictEqual( cb.has( getB ), false, "Remove a specific callback function and make sure its no longer there" );
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assert.strictEqual( cb.has( getA ), true, "Remove a specific callback function and make sure other callback function is still there" );
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cb.empty();
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assert.strictEqual( cb.has(), false, "Empty list and make sure there are no callback function(s)" );
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assert.strictEqual( cb.has( getA ), false, "Check for a specific function in an empty() list" );
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cb.add( getA, getB, function() {
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assert.strictEqual( cb.has(), true, "Check if list has callback function(s) from within a callback function" );
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assert.strictEqual( cb.has( getA ), true, "Check if list has a specific callback from within a callback function" );
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} ).fire();
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assert.strictEqual( cb.has(), true, "Callbacks list has callback function(s) after firing" );
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cb.disable();
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assert.strictEqual( cb.has(), false, "disabled() list has no callback functions (returns false)" );
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assert.strictEqual( cb.has( getA ), false, "Check for a specific function in a disabled() list" );
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cb = jQuery.Callbacks( "unique" );
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cb.add( getA );
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cb.add( getA );
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assert.strictEqual( cb.has(), true, "Check if unique list has callback function(s) attached" );
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cb.lock();
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assert.strictEqual( cb.has(), false, "locked() list is empty and returns false" );
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} );
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QUnit.test( "jQuery.Callbacks() - adding a string doesn't cause a stack overflow", function( assert ) {
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assert.expect( 1 );
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jQuery.Callbacks().add( "hello world" );
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assert.ok( true, "no stack overflow" );
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} );
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QUnit.test( "jQuery.Callbacks() - disabled callback doesn't fire (gh-1790)", function( assert ) {
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assert.expect( 1 );
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var cb = jQuery.Callbacks(),
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fired = false,
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shot = function() { fired = true; };
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cb.disable();
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cb.empty();
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cb.add( shot );
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cb.fire();
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assert.ok( !fired, "Disabled callback function didn't fire" );
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} );
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