Merge commit 'd21ea7816e' as 'jquery-ui'

jquery-ui/tests/unit/draggable/draggable_events.js

@@ -0,0 +1,164 @@
+/*
+ * draggable_events.js
+ */
+(function( $ ) {
+
+var element;
+
+module( "draggable: events", {
+	setup: function() {
+		element = $("<div>").appendTo("#qunit-fixture");
+	},
+	teardown: function() {
+		element.draggable("destroy");
+	}
+});
+
+test( "callbacks occurrence count", function() {
+	expect( 3 );
+
+	var start = 0,
+		stop = 0,
+		dragc = 0;
+
+	element.draggable({
+		start: function() {
+			start++;
+		},
+		drag: function() {
+			dragc++;
+		},
+		stop: function() {
+			stop++;
+		}
+	});
+
+	element.simulate( "drag", {
+		dx: 10,
+		dy: 10
+	});
+
+	equal( start, 1, "start callback should happen exactly once" );
+	equal( dragc, 3, "drag callback should happen exactly once per mousemove" );
+	equal( stop, 1, "stop callback should happen exactly once" );
+});
+
+test( "stopping the start callback", function() {
+	expect( 3 );
+
+	var start = 0,
+		stop = 0,
+		dragc = 0;
+
+	element.draggable({
+		start: function() {
+			start++;
+			return false;
+		},
+		drag: function() {
+			dragc++;
+		},
+		stop: function() {
+			stop++;
+		}
+	});
+
+	element.simulate( "drag", {
+		dx: 10,
+		dy: 10
+	});
+
+	equal( start, 1, "start callback should happen exactly once" );
+	equal( dragc, 0, "drag callback should not happen at all" );
+	equal( stop, 0, "stop callback should not happen if there wasnt even a start" );
+});
+
+test( "stopping the drag callback", function() {
+	expect( 2 );
+
+	var start = 0,
+		stop = 0,
+		dragc = 0;
+
+	element.draggable({
+		start: function() {
+			start++;
+		},
+		drag: function() {
+			dragc++;
+			return false;
+		},
+		stop: function() {
+			stop++;
+		}
+	});
+
+	element.simulate( "drag", {
+		dx: 10,
+		dy: 10
+	});
+
+	equal( start, 1, "start callback should happen exactly once" );
+	equal( stop, 1, "stop callback should happen, as we need to actively stop the drag" );
+});
+
+test( "stopping the stop callback", function() {
+	expect( 1 );
+
+	element.draggable({
+		helper: "clone",
+		stop: function() {
+			return false;
+		}
+	});
+
+	element.simulate( "drag", {
+		dx: 10,
+		dy: 10
+	});
+
+	ok( element.draggable( "instance" ).helper, "the clone should not be deleted if the stop callback is stopped" );
+});
+
+// http://bugs.jqueryui.com/ticket/6884
+// Draggable: ui.offset.left differs between the "start" and "drag" hooks
+test( "position and offset in hash is consistent between start, drag, and stop", function() {
+	expect( 4 );
+
+	var startPos, startOffset, dragPos, dragOffset, stopPos, stopOffset;
+
+	element = $( "<div style='margin: 2px;'></div>" ).appendTo( "#qunit-fixture" );
+
+	element.draggable({
+		start: function( event, ui ) {
+			startPos = ui.position;
+			startOffset = ui.offset;
+		},
+		drag: function( event, ui ) {
+			dragPos = ui.position;
+			dragOffset = ui.offset;
+		},
+		stop: function( event, ui ) {
+			stopPos = ui.position;
+			stopOffset = ui.offset;
+		}
+	});
+
+	element.simulate( "drag", {
+		dx: 10,
+		dy: 10,
+		moves: 1
+	});
+
+	startPos.left += 10;
+	startPos.top += 10;
+	startOffset.left += 10;
+	startOffset.top += 10;
+
+	deepEqual( startPos, dragPos, "start position equals drag position plus distance" );
+	deepEqual( dragPos, stopPos, "drag position equals stop position" );
+	deepEqual( startOffset, dragOffset, "start offset equals drag offset plus distance" );
+	deepEqual( dragOffset, stopOffset, "drag offset equals stop offset" );
+});
+
+})( jQuery );