2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <dali-toolkit/internal/controls/scroll-bar/scroll-bar-impl.h>
22 #include <dali/devel-api/actors/actor-devel.h>
23 #include <dali/devel-api/object/property-helper-devel.h>
24 #include <dali/integration-api/debug.h>
25 #include <dali/public-api/animation/constraint.h>
26 #include <dali/public-api/animation/constraints.h>
27 #include <dali/public-api/object/property-array.h>
28 #include <dali/public-api/object/type-registry-helper.h>
29 #include <dali/public-api/object/type-registry.h>
30 #include <cstring> // for strcmp
33 #include <dali-toolkit/devel-api/asset-manager/asset-manager.h>
34 #include <dali-toolkit/internal/controls/control/control-data-impl.h>
35 #include <dali-toolkit/internal/controls/scrollable/item-view/item-view-impl.h>
36 #include <dali-toolkit/public-api/controls/image-view/image-view.h>
42 const char* DEFAULT_INDICATOR_IMAGE_FILE_NAME = "popup_scroll.9.png";
43 const float DEFAULT_SLIDER_DEPTH(1.0f);
44 const float DEFAULT_INDICATOR_SHOW_DURATION(0.5f);
45 const float DEFAULT_INDICATOR_HIDE_DURATION(0.5f);
46 const float DEFAULT_PAN_GESTURE_PROCESS_TIME(16.7f); // 16.7 milliseconds, i.e. one frame
47 const float DEFAULT_INDICATOR_FIXED_HEIGHT(80.0f);
48 const float DEFAULT_INDICATOR_MINIMUM_HEIGHT(0.0f);
49 const float DEFAULT_INDICATOR_START_PADDING(0.0f);
50 const float DEFAULT_INDICATOR_END_PADDING(0.0f);
51 const float DEFAULT_INDICATOR_TRANSIENT_DURATION(1.0f);
54 * Indicator size constraint
55 * Indicator size depends on both indicator's parent size and the scroll content size
57 struct IndicatorSizeConstraint
60 * @param[in] minimumHeight The minimum height for the indicator
61 * @param[in] padding The sum of the padding at the start & end of the indicator
63 IndicatorSizeConstraint(float minimumHeight, float padding)
64 : mMinimumHeight(minimumHeight),
71 * @param[in] current The current indicator size
72 * @param[in] parentSizeProperty The parent size of scroll indicator.
73 * @return The new scroll indicator size.
75 void operator()(Vector3& current, const PropertyInputContainer& inputs)
77 const Vector3& parentSize = inputs[0]->GetVector3();
78 const float contentSize = inputs[1]->GetFloat();
80 // Take into account padding that may exist at the beginning and end of the indicator.
81 const float parentHeightMinusPadding = parentSize.height - mPadding;
83 float height = contentSize > parentHeightMinusPadding ? parentHeightMinusPadding * (parentHeightMinusPadding / contentSize) : parentHeightMinusPadding * ((parentHeightMinusPadding - contentSize * 0.5f) / parentHeightMinusPadding);
85 current.y = std::max(mMinimumHeight, height);
93 * Indicator position constraint
94 * Positions the indicator to reflect the current scroll position within the scroll domain.
96 struct IndicatorPositionConstraint
99 * @param[in] startPadding The padding at the start of the indicator
100 * @param[in] endPadding The padding at the end of the indicator
102 IndicatorPositionConstraint(float startPadding, float endPadding)
103 : mStartPadding(startPadding),
104 mEndPadding(endPadding)
109 * Constraint operator
110 * @param[in,out] current The current indicator position
111 * @param[in] inputs Contains the size of indicator, the size of indicator's parent, and the scroll position of the scrollable container (from 0.0 -> 1.0 in each axis)
112 * @return The new indicator position is returned.
114 void operator()(Vector3& current, const PropertyInputContainer& inputs)
116 const Vector3& indicatorSize = inputs[0]->GetVector3();
117 const Vector3& parentSize = inputs[1]->GetVector3();
118 const float scrollPosition = -inputs[2]->GetFloat();
119 const float minimumScrollPosition = inputs[3]->GetFloat();
120 const float maximumScrollPosition = inputs[4]->GetFloat();
122 // Take into account padding that may exist at the beginning and end of the indicator.
123 const float parentHeightMinusPadding = parentSize.height - (mStartPadding + mEndPadding);
125 float relativePosition = std::max(0.0f, std::min(1.0f, (scrollPosition - minimumScrollPosition) / (maximumScrollPosition - minimumScrollPosition)));
126 current.y = mStartPadding + (parentHeightMinusPadding - indicatorSize.height) * relativePosition;
127 current.z = DEFAULT_SLIDER_DEPTH;
134 } // unnamed namespace
144 using namespace Dali;
148 return Toolkit::ScrollBar::New();
152 // Setup properties, signals and actions using the type-registry.
153 DALI_TYPE_REGISTRATION_BEGIN( Toolkit::ScrollBar, Toolkit::Control, Create );
155 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "scrollDirection", STRING, SCROLL_DIRECTION )
156 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorHeightPolicy", STRING, INDICATOR_HEIGHT_POLICY )
157 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorFixedHeight", FLOAT, INDICATOR_FIXED_HEIGHT )
158 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorShowDuration", FLOAT, INDICATOR_SHOW_DURATION )
159 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorHideDuration", FLOAT, INDICATOR_HIDE_DURATION )
160 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "scrollPositionIntervals", ARRAY, SCROLL_POSITION_INTERVALS )
161 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorMinimumHeight", FLOAT, INDICATOR_MINIMUM_HEIGHT )
162 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorStartPadding", FLOAT, INDICATOR_START_PADDING )
163 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorEndPadding", FLOAT, INDICATOR_END_PADDING )
164 DALI_PROPERTY_REGISTRATION(Toolkit, ScrollBar, "indicatorTransientDuration", FLOAT, INDICATOR_TRANSIENT_DURATION)
166 DALI_SIGNAL_REGISTRATION(Toolkit, ScrollBar, "panFinished", PAN_FINISHED_SIGNAL )
167 DALI_SIGNAL_REGISTRATION(Toolkit, ScrollBar, "scrollPositionIntervalReached", SCROLL_POSITION_INTERVAL_REACHED_SIGNAL)
169 DALI_ACTION_REGISTRATION(Toolkit, ScrollBar, "ShowIndicator", ACTION_SHOW_INDICATOR )
170 DALI_ACTION_REGISTRATION(Toolkit, ScrollBar, "HideIndicator", ACTION_HIDE_INDICATOR )
171 DALI_ACTION_REGISTRATION(Toolkit, ScrollBar, "ShowTransientIndicator", ACTION_SHOW_TRANSIENT_INDICATOR)
173 DALI_TYPE_REGISTRATION_END()
176 const char* SCROLL_DIRECTION_NAME[] = {"VERTICAL", "HORIZONTAL"};
177 const char* INDICATOR_HEIGHT_POLICY_NAME[] = {"VARIABLE", "FIXED"};
181 ScrollBar::ScrollBar(Toolkit::ScrollBar::Direction direction)
182 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
183 mIndicatorShowAlpha(1.0f),
184 mDirection(direction),
185 mScrollableObject(WeakHandle<Handle>()),
186 mPropertyScrollPosition(Property::INVALID_INDEX),
187 mPropertyMinScrollPosition(Property::INVALID_INDEX),
188 mPropertyMaxScrollPosition(Property::INVALID_INDEX),
189 mPropertyScrollContentSize(Property::INVALID_INDEX),
190 mIndicatorShowDuration(DEFAULT_INDICATOR_SHOW_DURATION),
191 mIndicatorHideDuration(DEFAULT_INDICATOR_HIDE_DURATION),
192 mTransientIndicatorDuration(DEFAULT_INDICATOR_TRANSIENT_DURATION),
194 mGestureDisplacement(Vector2::ZERO),
195 mCurrentScrollPosition(0.0f),
196 mIndicatorHeightPolicy(Toolkit::ScrollBar::VARIABLE),
197 mIndicatorFixedHeight(DEFAULT_INDICATOR_FIXED_HEIGHT),
198 mIndicatorMinimumHeight(DEFAULT_INDICATOR_MINIMUM_HEIGHT),
199 mIndicatorStartPadding(DEFAULT_INDICATOR_START_PADDING),
200 mIndicatorEndPadding(DEFAULT_INDICATOR_END_PADDING),
202 mIndicatorFirstShow(true)
206 ScrollBar::~ScrollBar()
210 void ScrollBar::OnInitialize()
212 CreateDefaultIndicatorActor();
213 Self().SetProperty(Actor::Property::DRAW_MODE, DrawMode::OVERLAY_2D);
215 DevelControl::SetAccessibilityConstructor(Self(), [](Dali::Actor actor) {
216 return std::unique_ptr<Dali::Accessibility::Accessible>(
217 new AccessibleImpl(actor, Dali::Accessibility::Role::SCROLL_BAR));
221 void ScrollBar::SetScrollPropertySource(Handle handle, Property::Index propertyScrollPosition, Property::Index propertyMinScrollPosition, Property::Index propertyMaxScrollPosition, Property::Index propertyScrollContentSize)
223 if(handle && propertyScrollPosition != Property::INVALID_INDEX && propertyMinScrollPosition != Property::INVALID_INDEX && propertyMaxScrollPosition != Property::INVALID_INDEX && propertyScrollContentSize != Property::INVALID_INDEX)
225 mScrollableObject = WeakHandle<Handle>(handle);
226 mPropertyScrollPosition = propertyScrollPosition;
227 mPropertyMinScrollPosition = propertyMinScrollPosition;
228 mPropertyMaxScrollPosition = propertyMaxScrollPosition;
229 mPropertyScrollContentSize = propertyScrollContentSize;
235 DALI_LOG_ERROR("Can not set empty handle of source object or invalid source property index\n");
239 void ScrollBar::CreateDefaultIndicatorActor()
241 const std::string imageDirPath = AssetManager::GetDaliImagePath();
242 Toolkit::ImageView indicator = Toolkit::ImageView::New(imageDirPath + DEFAULT_INDICATOR_IMAGE_FILE_NAME);
243 indicator.SetProperty(Actor::Property::PARENT_ORIGIN, ParentOrigin::TOP_LEFT);
244 indicator.SetProperty(Actor::Property::ANCHOR_POINT, AnchorPoint::TOP_LEFT);
245 indicator.SetStyleName("ScrollBarIndicator");
246 indicator.SetProperty(Actor::Property::COLOR_MODE, USE_OWN_MULTIPLY_PARENT_COLOR);
247 SetScrollIndicator(indicator);
250 void ScrollBar::SetScrollIndicator(Actor indicator)
252 // Don't allow empty handle
255 // Remove current Indicator
258 Self().Remove(mIndicator);
260 mIndicator = indicator;
262 mIndicatorFirstShow = true;
263 Self().Add(mIndicator);
265 EnableGestureDetection(GestureType::Value(GestureType::PAN));
267 PanGestureDetector detector(GetPanGestureDetector());
268 detector.DetachAll();
269 detector.Attach(mIndicator);
271 unsigned int childCount = mIndicator.GetChildCount();
272 for(unsigned int index = 0; index < childCount; index++)
274 Actor child = mIndicator.GetChildAt(index);
277 detector.Attach(child);
283 DALI_LOG_ERROR("Empty handle of scroll indicator\n");
287 Actor ScrollBar::GetScrollIndicator()
292 void ScrollBar::ApplyConstraints()
294 Handle scrollableHandle = mScrollableObject.GetHandle();
298 if(mIndicatorSizeConstraint)
300 mIndicatorSizeConstraint.Remove();
303 // Set indicator height according to the indicator's height policy
304 if(mIndicatorHeightPolicy == Toolkit::ScrollBar::FIXED)
306 mIndicator.SetProperty(Actor::Property::SIZE, Vector2(Self().GetCurrentProperty<Vector3>(Actor::Property::SIZE).width, mIndicatorFixedHeight));
310 mIndicatorSizeConstraint = Constraint::New<Vector3>(mIndicator, Actor::Property::SIZE, IndicatorSizeConstraint(mIndicatorMinimumHeight, mIndicatorStartPadding + mIndicatorEndPadding));
311 mIndicatorSizeConstraint.AddSource(ParentSource(Actor::Property::SIZE));
312 mIndicatorSizeConstraint.AddSource(Source(scrollableHandle, mPropertyScrollContentSize));
313 mIndicatorSizeConstraint.Apply();
316 if(mIndicatorPositionConstraint)
318 mIndicatorPositionConstraint.Remove();
321 mIndicatorPositionConstraint = Constraint::New<Vector3>(mIndicator, Actor::Property::POSITION, IndicatorPositionConstraint(mIndicatorStartPadding, mIndicatorEndPadding));
322 mIndicatorPositionConstraint.AddSource(LocalSource(Actor::Property::SIZE));
323 mIndicatorPositionConstraint.AddSource(ParentSource(Actor::Property::SIZE));
324 mIndicatorPositionConstraint.AddSource(Source(scrollableHandle, mPropertyScrollPosition));
325 mIndicatorPositionConstraint.AddSource(Source(scrollableHandle, mPropertyMinScrollPosition));
326 mIndicatorPositionConstraint.AddSource(Source(scrollableHandle, mPropertyMaxScrollPosition));
327 mIndicatorPositionConstraint.Apply();
331 void ScrollBar::SetScrollPositionIntervals(const Dali::Vector<float>& positions)
333 mScrollPositionIntervals = positions;
335 Handle scrollableHandle = mScrollableObject.GetHandle();
339 if(mPositionNotification)
341 scrollableHandle.RemovePropertyNotification(mPositionNotification);
344 mPositionNotification = scrollableHandle.AddPropertyNotification(mPropertyScrollPosition, VariableStepCondition(mScrollPositionIntervals));
345 mPositionNotification.NotifySignal().Connect(this, &ScrollBar::OnScrollPositionIntervalReached);
349 Dali::Vector<float> ScrollBar::GetScrollPositionIntervals() const
351 return mScrollPositionIntervals;
354 void ScrollBar::OnScrollPositionIntervalReached(PropertyNotification& source)
356 // Emit the signal to notify the scroll position crossing
357 Handle scrollableHandle = mScrollableObject.GetHandle();
360 mScrollPositionIntervalReachedSignal.Emit(scrollableHandle.GetCurrentProperty<float>(mPropertyScrollPosition));
361 if(Self() == Dali::Accessibility::Accessible::GetCurrentlyHighlightedActor())
363 Control::Impl::GetAccessibilityObject(Self())->Emit(Dali::Accessibility::ObjectPropertyChangeEvent::VALUE);
368 void ScrollBar::ShowIndicator()
370 // Cancel any animation
377 if(mIndicatorFirstShow)
379 // Preserve the alpha value from the stylesheet
380 mIndicatorShowAlpha = Self().GetCurrentProperty<Vector4>(Actor::Property::COLOR).a;
381 mIndicatorFirstShow = false;
384 if(mIndicatorShowDuration > 0.0f)
386 mAnimation = Animation::New(mIndicatorShowDuration);
387 mAnimation.AnimateTo(Property(mIndicator, Actor::Property::COLOR_ALPHA), mIndicatorShowAlpha, AlphaFunction::EASE_IN);
392 mIndicator.SetProperty(Actor::Property::OPACITY, mIndicatorShowAlpha);
396 void ScrollBar::HideIndicator()
398 // Cancel any animation
405 if(mIndicatorHideDuration > 0.0f)
407 mAnimation = Animation::New(mIndicatorHideDuration);
408 mAnimation.AnimateTo(Property(mIndicator, Actor::Property::COLOR_ALPHA), 0.0f, AlphaFunction::EASE_IN);
413 mIndicator.SetProperty(Actor::Property::OPACITY, 0.0f);
417 void ScrollBar::ShowTransientIndicator()
419 // Cancel any animation
426 mAnimation = Animation::New(mIndicatorShowDuration + mTransientIndicatorDuration + mIndicatorHideDuration);
427 if(mIndicatorShowDuration > 0.0f)
429 mAnimation.AnimateTo(Property(mIndicator, Actor::Property::COLOR_ALPHA),
431 AlphaFunction::EASE_IN,
432 TimePeriod(0, mIndicatorShowDuration));
436 mIndicator.SetProperty(Actor::Property::OPACITY, mIndicatorShowAlpha);
438 mAnimation.AnimateTo(Property(mIndicator, Actor::Property::COLOR_ALPHA),
440 AlphaFunction::EASE_IN,
441 TimePeriod((mIndicatorShowDuration + mTransientIndicatorDuration), mIndicatorHideDuration));
445 bool ScrollBar::OnPanGestureProcessTick()
447 // Update the scroll position property.
448 Handle scrollableHandle = mScrollableObject.GetHandle();
451 scrollableHandle.SetProperty(mPropertyScrollPosition, mCurrentScrollPosition);
457 void ScrollBar::OnPan(const PanGesture& gesture)
459 Handle scrollableHandle = mScrollableObject.GetHandle();
463 Dali::Toolkit::ItemView itemView = Dali::Toolkit::ItemView::DownCast(scrollableHandle);
465 switch(gesture.GetState())
467 case Dali::GestureState::STARTED:
469 if(!mPanProcessTimer)
471 // Make sure the pan gesture is only being processed once per frame.
472 mPanProcessTimer = Timer::New(DEFAULT_PAN_GESTURE_PROCESS_TIME);
473 mPanProcessTimer.TickSignal().Connect(this, &ScrollBar::OnPanGestureProcessTick);
474 mPanProcessTimer.Start();
478 mScrollStart = scrollableHandle.GetCurrentProperty<float>(mPropertyScrollPosition);
479 mGestureDisplacement = Vector2::ZERO;
484 case Dali::GestureState::CONTINUING:
486 mGestureDisplacement += gesture.GetDisplacement();
488 float minScrollPosition = scrollableHandle.GetCurrentProperty<float>(mPropertyMinScrollPosition);
489 float maxScrollPosition = scrollableHandle.GetCurrentProperty<float>(mPropertyMaxScrollPosition);
491 // The domain size is the internal range
492 float domainSize = maxScrollPosition - minScrollPosition;
493 float logicalSize = Self().GetCurrentProperty<Vector3>(Actor::Property::SIZE).y - (mIndicator.GetCurrentProperty<Vector3>(Actor::Property::SIZE).y + mIndicatorStartPadding + mIndicatorEndPadding);
495 mCurrentScrollPosition = mScrollStart - ((mGestureDisplacement.y * domainSize) / logicalSize);
496 mCurrentScrollPosition = -std::min(maxScrollPosition, std::max(-mCurrentScrollPosition, minScrollPosition));
506 // Destroy the timer when pan gesture is finished.
507 mPanProcessTimer.Stop();
508 mPanProcessTimer.TickSignal().Disconnect(this, &ScrollBar::OnPanGestureProcessTick);
509 mPanProcessTimer.Reset();
514 // Refresh the ItemView cache with extra items
515 GetImpl(itemView).DoRefresh(mCurrentScrollPosition, true);
518 mPanFinishedSignal.Emit();
526 // Disable automatic refresh in ItemView during fast scrolling
527 GetImpl(itemView).SetRefreshEnabled(!mIsPanning);
532 void ScrollBar::OnSizeSet(const Vector3& size)
534 if(mIndicatorHeightPolicy == Toolkit::ScrollBar::FIXED)
536 mIndicator.SetProperty(Actor::Property::SIZE, Vector2(size.width, mIndicatorFixedHeight));
539 Control::OnSizeSet(size);
542 void ScrollBar::SetScrollDirection(Toolkit::ScrollBar::Direction direction)
544 mDirection = direction;
547 Toolkit::ScrollBar::Direction ScrollBar::GetScrollDirection() const
552 void ScrollBar::SetIndicatorHeightPolicy(Toolkit::ScrollBar::IndicatorHeightPolicy policy)
554 if(policy != mIndicatorHeightPolicy)
556 mIndicatorHeightPolicy = policy;
561 Toolkit::ScrollBar::IndicatorHeightPolicy ScrollBar::GetIndicatorHeightPolicy() const
563 return mIndicatorHeightPolicy;
566 void ScrollBar::SetIndicatorFixedHeight(float height)
568 mIndicatorFixedHeight = height;
570 if(mIndicatorHeightPolicy == Toolkit::ScrollBar::FIXED)
572 mIndicator.SetProperty(Actor::Property::SIZE, Vector2(Self().GetCurrentProperty<Vector3>(Actor::Property::SIZE).width, mIndicatorFixedHeight));
576 float ScrollBar::GetIndicatorFixedHeight() const
578 return mIndicatorFixedHeight;
581 void ScrollBar::SetIndicatorShowDuration(float durationSeconds)
583 mIndicatorShowDuration = durationSeconds;
586 float ScrollBar::GetIndicatorShowDuration() const
588 return mIndicatorShowDuration;
591 void ScrollBar::SetIndicatorHideDuration(float durationSeconds)
593 mIndicatorHideDuration = durationSeconds;
596 float ScrollBar::GetIndicatorHideDuration() const
598 return mIndicatorHideDuration;
601 void ScrollBar::OnScrollDirectionPropertySet(Property::Value propertyValue)
603 std::string directionName(propertyValue.Get<std::string>());
604 if(directionName == "VERTICAL")
606 SetScrollDirection(Toolkit::ScrollBar::VERTICAL);
608 else if(directionName == "HORIZONTAL")
610 SetScrollDirection(Toolkit::ScrollBar::HORIZONTAL);
614 DALI_ASSERT_ALWAYS(!"ScrollBar::OnScrollDirectionPropertySet(). Invalid Property value.");
618 void ScrollBar::OnIndicatorHeightPolicyPropertySet(Property::Value propertyValue)
620 std::string policyName(propertyValue.Get<std::string>());
621 if(policyName == "VARIABLE")
623 SetIndicatorHeightPolicy(Toolkit::ScrollBar::VARIABLE);
625 else if(policyName == "FIXED")
627 SetIndicatorHeightPolicy(Toolkit::ScrollBar::FIXED);
631 DALI_ASSERT_ALWAYS(!"ScrollBar::OnIndicatorHeightPolicyPropertySet(). Invalid Property value.");
635 bool ScrollBar::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor)
637 Dali::BaseHandle handle(object);
639 bool connected(true);
640 Toolkit::ScrollBar scrollBar = Toolkit::ScrollBar::DownCast(handle);
642 if(0 == strcmp(signalName.c_str(), PAN_FINISHED_SIGNAL))
644 scrollBar.PanFinishedSignal().Connect(tracker, functor);
646 else if(0 == strcmp(signalName.c_str(), SCROLL_POSITION_INTERVAL_REACHED_SIGNAL))
648 scrollBar.ScrollPositionIntervalReachedSignal().Connect(tracker, functor);
652 // signalName does not match any signal
659 void ScrollBar::SetProperty(BaseObject* object, Property::Index index, const Property::Value& value)
661 Toolkit::ScrollBar scrollBar = Toolkit::ScrollBar::DownCast(Dali::BaseHandle(object));
665 ScrollBar& scrollBarImpl(GetImpl(scrollBar));
668 case Toolkit::ScrollBar::Property::SCROLL_DIRECTION:
670 scrollBarImpl.OnScrollDirectionPropertySet(value);
673 case Toolkit::ScrollBar::Property::INDICATOR_HEIGHT_POLICY:
675 scrollBarImpl.OnIndicatorHeightPolicyPropertySet(value);
678 case Toolkit::ScrollBar::Property::INDICATOR_FIXED_HEIGHT:
680 scrollBarImpl.SetIndicatorFixedHeight(value.Get<float>());
683 case Toolkit::ScrollBar::Property::INDICATOR_SHOW_DURATION:
685 scrollBarImpl.SetIndicatorShowDuration(value.Get<float>());
688 case Toolkit::ScrollBar::Property::INDICATOR_HIDE_DURATION:
690 scrollBarImpl.SetIndicatorHideDuration(value.Get<float>());
693 case Toolkit::ScrollBar::Property::SCROLL_POSITION_INTERVALS:
695 const Property::Array* array = value.GetArray();
698 Dali::Vector<float> positions;
699 size_t positionCount = array->Count();
700 positions.Resize(positionCount);
701 for(size_t i = 0; i != positionCount; ++i)
703 array->GetElementAt(i).Get(positions[i]);
706 scrollBarImpl.SetScrollPositionIntervals(positions);
710 case Toolkit::ScrollBar::Property::INDICATOR_MINIMUM_HEIGHT:
712 scrollBarImpl.mIndicatorMinimumHeight = value.Get<float>();
713 scrollBarImpl.ApplyConstraints();
716 case Toolkit::ScrollBar::Property::INDICATOR_START_PADDING:
718 scrollBarImpl.mIndicatorStartPadding = value.Get<float>();
719 scrollBarImpl.ApplyConstraints();
722 case Toolkit::ScrollBar::Property::INDICATOR_END_PADDING:
724 scrollBarImpl.mIndicatorEndPadding = value.Get<float>();
725 scrollBarImpl.ApplyConstraints();
728 case Toolkit::ScrollBar::Property::INDICATOR_TRANSIENT_DURATION:
730 scrollBarImpl.mTransientIndicatorDuration = value.Get<float>();
737 Property::Value ScrollBar::GetProperty(BaseObject* object, Property::Index index)
739 Property::Value value;
741 Toolkit::ScrollBar scrollBar = Toolkit::ScrollBar::DownCast(Dali::BaseHandle(object));
745 ScrollBar& scrollBarImpl(GetImpl(scrollBar));
748 case Toolkit::ScrollBar::Property::SCROLL_DIRECTION:
750 value = SCROLL_DIRECTION_NAME[scrollBarImpl.GetScrollDirection()];
753 case Toolkit::ScrollBar::Property::INDICATOR_HEIGHT_POLICY:
755 value = INDICATOR_HEIGHT_POLICY_NAME[scrollBarImpl.GetIndicatorHeightPolicy()];
758 case Toolkit::ScrollBar::Property::INDICATOR_FIXED_HEIGHT:
760 value = scrollBarImpl.GetIndicatorFixedHeight();
763 case Toolkit::ScrollBar::Property::INDICATOR_SHOW_DURATION:
765 value = scrollBarImpl.GetIndicatorShowDuration();
768 case Toolkit::ScrollBar::Property::INDICATOR_HIDE_DURATION:
770 value = scrollBarImpl.GetIndicatorHideDuration();
773 case Toolkit::ScrollBar::Property::SCROLL_POSITION_INTERVALS:
775 Property::Value tempValue(Property::ARRAY);
776 Property::Array* array = tempValue.GetArray();
780 Dali::Vector<float> positions = scrollBarImpl.GetScrollPositionIntervals();
781 size_t positionCount(positions.Count());
783 for(size_t i(0); i != positionCount; ++i)
785 array->PushBack(positions[i]);
792 case Toolkit::ScrollBar::Property::INDICATOR_MINIMUM_HEIGHT:
794 value = scrollBarImpl.mIndicatorMinimumHeight;
797 case Toolkit::ScrollBar::Property::INDICATOR_START_PADDING:
799 value = scrollBarImpl.mIndicatorStartPadding;
802 case Toolkit::ScrollBar::Property::INDICATOR_END_PADDING:
804 value = scrollBarImpl.mIndicatorEndPadding;
807 case Toolkit::ScrollBar::Property::INDICATOR_TRANSIENT_DURATION:
809 value = scrollBarImpl.mTransientIndicatorDuration;
817 bool ScrollBar::DoAction(BaseObject* object, const std::string& actionName, const Property::Map& attributes)
821 Dali::BaseHandle handle(object);
823 Toolkit::ScrollBar scrollBar = Toolkit::ScrollBar::DownCast(handle);
825 DALI_ASSERT_DEBUG(scrollBar);
829 if(0 == strcmp(actionName.c_str(), ACTION_SHOW_INDICATOR))
831 GetImpl(scrollBar).ShowIndicator();
834 else if(0 == strcmp(actionName.c_str(), ACTION_HIDE_INDICATOR))
836 GetImpl(scrollBar).HideIndicator();
839 else if(0 == strcmp(actionName.c_str(), ACTION_SHOW_TRANSIENT_INDICATOR))
841 GetImpl(scrollBar).ShowTransientIndicator();
849 Toolkit::ScrollBar ScrollBar::New(Toolkit::ScrollBar::Direction direction)
851 // Create the implementation, temporarily owned by this handle on stack
852 IntrusivePtr<ScrollBar> impl = new ScrollBar(direction);
854 // Pass ownership to CustomActor handle
855 Toolkit::ScrollBar handle(*impl);
857 // Second-phase init of the implementation
858 // This can only be done after the CustomActor connection has been made...
864 double ScrollBar::AccessibleImpl::GetMinimum()
866 auto p = Toolkit::ScrollBar::DownCast(Self());
867 Handle scrollableHandle = GetImpl(p).mScrollableObject.GetHandle();
868 return scrollableHandle ? scrollableHandle.GetCurrentProperty<float>(GetImpl(p).mPropertyMinScrollPosition) : 0.0f;
871 double ScrollBar::AccessibleImpl::GetCurrent()
873 auto p = Toolkit::ScrollBar::DownCast(Self());
874 Handle scrollableHandle = GetImpl(p).mScrollableObject.GetHandle();
875 return scrollableHandle ? scrollableHandle.GetCurrentProperty<float>(GetImpl(p).mPropertyScrollPosition) : 0.0f;
878 double ScrollBar::AccessibleImpl::GetMaximum()
880 auto p = Toolkit::ScrollBar::DownCast(Self());
881 Handle scrollableHandle = GetImpl(p).mScrollableObject.GetHandle();
882 return scrollableHandle ? scrollableHandle.GetCurrentProperty<float>(GetImpl(p).mPropertyMaxScrollPosition) : 1.0f;
885 bool ScrollBar::AccessibleImpl::SetCurrent(double current)
887 if(current < GetMinimum() || current > GetMaximum())
890 auto value_before = GetCurrent();
892 auto p = Toolkit::ScrollBar::DownCast(Self());
893 Handle scrollableHandle = GetImpl(p).mScrollableObject.GetHandle();
894 if(!scrollableHandle)
896 scrollableHandle.SetProperty(GetImpl(p).mPropertyScrollPosition, static_cast<float>(current));
898 auto value_after = GetCurrent();
900 if((current != value_before) && (value_before == value_after))
906 double ScrollBar::AccessibleImpl::GetMinimumIncrement()
911 } // namespace Internal
913 } // namespace Toolkit