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 #include "core/components_ng/pattern/navigation/title_bar_node.h"
17
18 #include "base/memory/ace_type.h"
19 #include "base/memory/referenced.h"
20 #include "core/components_ng/pattern/navigation/title_bar_pattern.h"
21
22 namespace OHOS::Ace::NG {
23
TitleBarNode(const std::string & tag,int32_t nodeId)24 TitleBarNode::TitleBarNode(const std::string& tag, int32_t nodeId)
25 : FrameNode(tag, nodeId, MakeRefPtr<TitleBarPattern>())
26 {}
27
GetOrCreateTitleBarNode(const std::string & tag,int32_t nodeId,const std::function<RefPtr<Pattern> (void)> & patternCreator)28 RefPtr<TitleBarNode> TitleBarNode::GetOrCreateTitleBarNode(
29 const std::string& tag, int32_t nodeId, const std::function<RefPtr<Pattern>(void)>& patternCreator)
30 {
31 auto frameNode = GetFrameNode(tag, nodeId);
32 CHECK_NULL_RETURN_NOLOG(!frameNode, AceType::DynamicCast<TitleBarNode>(frameNode));
33 auto pattern = patternCreator ? patternCreator() : MakeRefPtr<Pattern>();
34 auto titleBarNode = AceType::MakeRefPtr<TitleBarNode>(tag, nodeId, pattern);
35 titleBarNode->InitializePatternAndContext();
36 ElementRegister::GetInstance()->AddUINode(titleBarNode);
37 return titleBarNode;
38 }
39
40 // The function is only used for fast preview.
FastPreviewUpdateChild(int32_t slot,const RefPtr<UINode> & newChild)41 void TitleBarNode::FastPreviewUpdateChild(int32_t slot, const RefPtr<UINode>& newChild)
42 {
43 auto oldChild = GetChildAtIndex(slot);
44 if (title_ == oldChild) {
45 title_ = newChild;
46 } else if (menu_ == oldChild) {
47 menu_ = newChild;
48 }
49 UINode::FastPreviewUpdateChild(slot, newChild);
50 }
51
52 } // namespace OHOS::Ace::NG
53