Function createRangeInputDeltaBtn

test/lib/testHelper.js:977–992

(btnName, delta)

                _rangeInputWrapperEl.appendChild(sliderTextEl);

                function createRangeInputDeltaBtn(btnName, delta) {
                    if (_noDeltaButtons) { return; }
                    var sliderLRBtnEl = document.createElement('div');
                    sliderLRBtnEl.className = 'test-inputs-slider-btn-incdec test-inputs-slider-btn-' + btnName;
                    _rangeInputWrapperEl.appendChild(sliderLRBtnEl);
                    sliderLRBtnEl.addEventListener('click', inputRecorder.wrapUserInputListener({
                        listener: function () {
                            if (_disabled) { return; }
                            // 0.1 + 0.2 = 0.30000000000000004
                            _currVal = round(_currVal + delta, _precision);
                            updateRangeInputViewValue(_currVal);
                            dispatchRangeInputChangedEvent();
                        },
                        op: btnName + _opSuffix
                    }));
                }
                createRangeInputDeltaBtn('decrease', -_step);
                createRangeInputDeltaBtn('increase', _step);