1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_NAVIGATION_NAV_BAR_PATTERN_H 17 #define FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_NAVIGATION_NAV_BAR_PATTERN_H 18 19 #include "base/memory/referenced.h" 20 #include "core/components_ng/base/ui_node.h" 21 #include "core/components_ng/pattern/navigation/nav_bar_event_hub.h" 22 #include "core/components_ng/pattern/navigation/nav_bar_layout_algorithm.h" 23 #include "core/components_ng/pattern/navigation/nav_bar_layout_property.h" 24 #include "core/components_ng/pattern/navigation/nav_bar_node.h" 25 #include "core/components_ng/pattern/navigation/navdestination_pattern_base.h" 26 #include "core/components_ng/pattern/navigation/navigation_event_hub.h" 27 #include "core/components_ng/pattern/navigation/navigation_layout_algorithm.h" 28 #include "core/components_ng/pattern/navigation/title_bar_layout_property.h" 29 #include "core/components_ng/pattern/pattern.h" 30 31 namespace OHOS::Ace::NG { 32 33 class NavBarPattern : public NavDestinationPatternBase { 34 DECLARE_ACE_TYPE(NavBarPattern, NavDestinationPatternBase); 35 36 public: 37 NavBarPattern() = default; 38 ~NavBarPattern() override = default; 39 IsEnableMatchParent()40 bool IsEnableMatchParent() override 41 { 42 return true; 43 } 44 IsEnableFix()45 bool IsEnableFix() override 46 { 47 return true; 48 } 49 IsEnableChildrenMatchParent()50 bool IsEnableChildrenMatchParent() override 51 { 52 return true; 53 } 54 CreateLayoutProperty()55 RefPtr<LayoutProperty> CreateLayoutProperty() override 56 { 57 return MakeRefPtr<NavBarLayoutProperty>(); 58 } 59 CreateLayoutAlgorithm()60 RefPtr<LayoutAlgorithm> CreateLayoutAlgorithm() override 61 { 62 return MakeRefPtr<NavBarLayoutAlgorithm>(); 63 } 64 CreateEventHub()65 RefPtr<EventHub> CreateEventHub() override 66 { 67 return MakeRefPtr<NavBarEventHub>(); 68 } 69 70 void OnCoordScrollStart() override; 71 float OnCoordScrollUpdate(float offset, float currentOffset) override; 72 void OnCoordScrollEnd() override; 73 bool CanCoordScrollUp(float offset) const override; 74 75 void OnAttachToFrameNode() override; 76 NeedCoordWithScroll()77 bool NeedCoordWithScroll() override 78 { 79 return !isHideTitlebar_ && (titleMode_ == NavigationTitleMode::FREE || IsNeedHandleScroll()); 80 } IsNeedHandleScroll()81 bool IsNeedHandleScroll() const override 82 { 83 auto eventHub = GetOrCreateEventHub<NavBarEventHub>(); 84 if (eventHub && eventHub->HasOnCoordScrollStartAction()) { 85 return true; 86 } 87 return false; 88 } 89 OffsetF GetShowMenuOffset(const RefPtr<BarItemNode>& barItemNode, const RefPtr<FrameNode>& menuNode); 90 91 float GetTitleBarHeightLessThanMaxBarHeight() const override; 92 93 void BeforeCreateLayoutWrapper() override; 94 95 protected: 96 void OnDetachFromFrameNode(FrameNode* frameNode) override; 97 98 void MountTitleBar(const RefPtr<FrameNode>& host, bool& needRunTitleBarAnimation); 99 100 private: 101 void OnWindowSizeChanged(int32_t width, int32_t height, WindowSizeChangeReason type) override; 102 void OnModifyDone() override; 103 bool OnDirtyLayoutWrapperSwap(const RefPtr<LayoutWrapper>& dirty, const DirtySwapConfig& config) override; 104 105 RefPtr<PanEvent> panEvent_; 106 WeakPtr<FrameNode> scrollableNode_; 107 RefPtr<FrictionMotion> motion_; 108 RefPtr<Animator> controller_; 109 NavigationTitleMode titleMode_ = NavigationTitleMode::FREE; 110 }; 111 112 } // namespace OHOS::Ace::NG 113 114 #endif // FOUNDATION_ACE_FRAMEWORKS_CORE_COMPONENTS_NG_PATTERNS_NAVIGATION_NAV_BAR_PATTERN_H