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294 lines
10 KiB
JavaScript
294 lines
10 KiB
JavaScript
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describe("Dragging handles tests", function() {
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var testSlider;
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var mouseEventArguments;
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var tickOffsets;
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// Create mouse events
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function mouseEvent(type, offset) {
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var ev = document.createEvent("MouseEvents");
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mouseEventArguments[0] = type;
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mouseEventArguments[7] = offset;
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ev.initMouseEvent.apply(ev, mouseEventArguments);
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return ev;
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}
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beforeEach(function() {
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// Create slider
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testSlider = new Slider(document.getElementById("testSlider1"), {
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ticks: [0, 1, 2, 3, 4, 5, 6],
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value: [4, 5],
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step: 1,
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range: true,
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});
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// Set up default set of mouse event arguments
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mouseEventArguments = [
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'mousemove', // type
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true, // canBubble
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true, // cancelable
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document, // view,
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0, // detail
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0, // screenX
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0, // screenY
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undefined, // clientX
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testSlider.sliderElem.offsetTop, // clientY,
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false, // ctrlKey
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false, // altKey
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false, // shiftKey
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false, // metaKey,
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0, // button
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null // relatedTarget
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];
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// Calculate and store the 'clientX' for each tick in the slider
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tickOffsets = testSlider.ticks.map(function (tick) {
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return tick.offsetLeft + testSlider.sliderElem.offsetLeft;
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});
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});
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afterEach(function() {
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if(testSlider) {
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if(testSlider instanceof Slider) { testSlider.destroy(); }
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testSlider = null;
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}
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});
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describe("Dragging handles over each other", function() {
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it("should swap reliably given imprecision", function() {
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// Create mouse event with position to the left of problem tick
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var mouseLeft = document.createEvent('MouseEvents');
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mouseEventArguments[7] = tickOffsets[4]; // clientX
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mouseLeft.initMouseEvent.apply(mouseLeft, mouseEventArguments);
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// Create mouse event with position on problem tick
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var mouseOverlap = document.createEvent('MouseEvents');
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mouseEventArguments[7] = tickOffsets[5]; // clientX
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mouseOverlap.initMouseEvent.apply(mouseOverlap, mouseEventArguments);
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// Create mouse event with position to the right of problem tick
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var mouseRight = document.createEvent('MouseEvents');
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mouseEventArguments[7] = tickOffsets[6]; // clientX
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mouseRight.initMouseEvent.apply(mouseRight, mouseEventArguments);
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// Same offset as 'mouseLeft'
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var mouseUp = document.createEvent('MouseEvents');
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mouseEventArguments[7] = testSlider.ticks[4].offsetLeft + testSlider.sliderElem.offsetLeft; // clientX
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mouseUp.initMouseEvent.apply(mouseUp, mouseEventArguments);
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// Simulate drag without swapping
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testSlider.mousedown(mouseLeft);
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([4, 5]);
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// Simulate handle overlap
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testSlider.mousemove(mouseOverlap);
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([5, 5]);
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// Simulate left over right drag with imprecision in reported percentage
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testSlider.mousemove(mouseRight);
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expect(testSlider._state.dragged).toBe(1);
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expect(testSlider.getValue()).toEqual([5, 6]);
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// Simulate handle overlap
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testSlider.mousemove(mouseOverlap);
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expect(testSlider._state.dragged).toBe(1);
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expect(testSlider.getValue()).toEqual([5, 5]);
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// Simulator handle overlap with click
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testSlider.mousemove(mouseOverlap);
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testSlider.mousedown(mouseLeft);
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([4, 5]);
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// Simulate right over left drag with imprecision in reported percentage
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testSlider.mousemove(mouseLeft);
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([4, 5]);
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// End with mouse up
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testSlider.mouseup(mouseUp);
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expect(testSlider._state.dragged).toBeNull();
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expect(testSlider.getValue()).toEqual([4, 5]);
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});
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});
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describe("Drag handles over each other and use keyboard to move handles over each other", function() {
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var keyboardEvent;
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function createMouseEvent(type, tickIdx) {
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var mouseEvent = document.createEvent('MouseEvent');
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mouseEventArguments[0] = type;
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mouseEventArguments[7] = tickOffsets[tickIdx];
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mouseEvent.initMouseEvent.apply(mouseEvent, mouseEventArguments);
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return mouseEvent;
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}
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beforeEach(function() {
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// Create keyboard event
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keyboardEvent = document.createEvent('Event');
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keyboardEvent.initEvent('keydown', true, true);
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});
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afterEach(function() {
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keyboardEvent = null;
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});
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it("should drag and keydown handles properly to the right then back to the left", function() {
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// Simulate drag without swapping
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testSlider.mousedown(createMouseEvent('mousedown', 4));
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([4, 5]);
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// Simulate handle overlap
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testSlider.mousemove(createMouseEvent('mousemove', 5));
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([5, 5]);
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// Simulate left over right drag
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testSlider.mousemove(createMouseEvent('mousemove', 6));
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expect(testSlider._state.dragged).toBe(1);
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expect(testSlider.getValue()).toEqual([5, 6]);
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// End with mouse up
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testSlider.mouseup(createMouseEvent('mouseup', 6));
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expect(testSlider._state.dragged).toBeNull();
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expect(testSlider.getValue()).toEqual([5, 6]);
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// Now move the handles past each other with the Left arrow key
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keyboardEvent.keyCode = keyboardEvent.which = 37;
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// Move handle2 to the left with keyboard
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testSlider.handle2Keydown(keyboardEvent);
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expect(testSlider._state.keyCtrl).toBeUndefined();
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expect(testSlider.getValue()).toEqual([5, 5]);
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// Move handle2 to the left again
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testSlider.handle2Keydown(keyboardEvent);
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expect(testSlider._state.keyCtrl).toBeUndefined();
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expect(testSlider.getValue()).toEqual([4, 5]);
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});
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it("should drag and keydown handles properly to the left then back to the right", function() {
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// Simulate drag without swapping
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testSlider.mousedown(createMouseEvent('mousedown', 5));
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expect(testSlider._state.dragged).toBe(1);
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expect(testSlider.getValue()).toEqual([4, 5]);
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// Simulate handle overlap
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testSlider.mousemove(createMouseEvent('mousemove', 4));
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expect(testSlider._state.dragged).toBe(1);
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expect(testSlider.getValue()).toEqual([4, 4]);
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// Simulate left over right drag
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testSlider.mousemove(createMouseEvent('mousemove', 3));
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expect(testSlider._state.dragged).toBe(0);
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expect(testSlider.getValue()).toEqual([3, 4]);
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// End with mouse up
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testSlider.mouseup(createMouseEvent('mouseup', 3));
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expect(testSlider._state.dragged).toBeNull();
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expect(testSlider.getValue()).toEqual([3, 4]);
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// Now move the handles past each other with the Right arrow key
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keyboardEvent.keyCode = keyboardEvent.which = 39;
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// Move handle1 to the right with keyboard
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testSlider.handle1Keydown(keyboardEvent);
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expect(testSlider._state.keyCtrl).toBeUndefined();
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expect(testSlider.getValue()).toEqual([4, 4]);
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// Move handle1 to the right again
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testSlider.handle1Keydown(keyboardEvent);
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expect(testSlider._state.keyCtrl).toBeUndefined();
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expect(testSlider.getValue()).toEqual([4, 5]);
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});
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});
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it("Should snap to a tick within tick bounds when using the mouse navigation", function() {
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testSlider.setAttribute('range', true);
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testSlider.setAttribute('ticks_snap_bounds', 0.45);
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testSlider.setAttribute('step', 0.1);
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testSlider.refresh();
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// Create mouse events
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var mouseDown = document.createEvent("MouseEvents");
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mouseEventArguments[7] = tickOffsets[1];
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mouseDown.initMouseEvent.apply(mouseDown, mouseEventArguments);
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var mouseRight = document.createEvent("MouseEvents");
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mouseEventArguments[7] = tickOffsets[2] - 2;
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mouseRight.initMouseEvent.apply(mouseRight, mouseEventArguments);
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testSlider.mousedown(mouseDown);
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expect(testSlider.getValue()).toEqual([0.7, 5]);
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testSlider.mousemove(mouseRight);
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expect(testSlider.getValue()).toEqual([2, 5]);
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// FIXME: Use 'mouseup' event type
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// End with mouse up
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testSlider.mouseup(mouseRight);
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expect(testSlider.getValue()).toEqual([2, 5]);
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});
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it("Should trigger change on mouseup", function(done) {
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var changes = 0;
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testSlider.on('slideStop', function(){
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expect(changes).toBe(1);
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expect(testSlider.getValue()).toEqual([2, 5]);
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done();
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});
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testSlider.mousedown(mouseEvent('mousedown', tickOffsets[1]));
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expect(testSlider.getValue()).toEqual([1, 5]);
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testSlider.on('change', function(){
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changes++;
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});
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testSlider.mouseup(mouseEvent('mouseup', tickOffsets[2]));
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});
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describe("Test 'mousemove' and 'mouseup' produces correct results", function() {
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var $mySlider;
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var $handle1;
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function arraysEqual(a, b) {
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if (a === b) { return true; }
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if (a == null || b == null) { return false; }
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if (a.length !== b.length) { return false; }
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for (var i = 0; i < a.length; ++i) {
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if (a[i] !== b[i]) { return false; }
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}
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return true;
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}
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it("Last value changed in 'change' event should equal 'mouseup' event value for slider", function(done) {
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// Change attributes for 'testSlider'
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testSlider.setAttribute('value', 3);
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testSlider.setAttribute('range', false);
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testSlider.refresh();
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$mySlider = $('#testSlider1');
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function createMouseEvent(type, tickIdx) {
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var mouseEvent = document.createEvent('MouseEvent');
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mouseEventArguments[0] = type;
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mouseEventArguments[7] = tickOffsets[tickIdx];
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mouseEvent.initMouseEvent.apply(mouseEvent, mouseEventArguments);
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return mouseEvent;
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}
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var lastValue = 99; // Dummy value
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$mySlider.on('change', function(eventData) {
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lastValue = eventData.value.newValue;
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});
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$mySlider.on('slideStop', function(eventData) {
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var value = eventData.value;
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var isEqual = Array.isArray(value) ? arraysEqual(lastValue, value) : value === lastValue;
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expect(isEqual).toBe(true);
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done();
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});
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// Simulate drag and release from tick[1] to tick[4]
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$handle1 = testSlider.$sliderElem.find('.slider-handle:first');
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$handle1[0].dispatchEvent(createMouseEvent('mousedown', 1));
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$handle1[0].dispatchEvent(createMouseEvent('mousemove', 4));
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$handle1[0].dispatchEvent(createMouseEvent('mouseup', 4));
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});
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});
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});
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