/src/mozilla-central/dom/base/nsDOMCaretPosition.cpp
Line | Count | Source (jump to first uncovered line) |
1 | | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
2 | | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
3 | | /* This Source Code Form is subject to the terms of the Mozilla Public |
4 | | * License, v. 2.0. If a copy of the MPL was not distributed with this |
5 | | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
6 | | |
7 | | #include "nsDOMCaretPosition.h" |
8 | | |
9 | | #include "mozilla/dom/CaretPositionBinding.h" |
10 | | #include "mozilla/dom/DOMRect.h" |
11 | | #include "nsRange.h" |
12 | | |
13 | | using namespace mozilla::dom; |
14 | | |
15 | | nsDOMCaretPosition::nsDOMCaretPosition(nsINode* aNode, uint32_t aOffset) |
16 | | : mOffset(aOffset), mOffsetNode(aNode), mAnonymousContentNode(nullptr) |
17 | 0 | { |
18 | 0 | } |
19 | | |
20 | | nsDOMCaretPosition::~nsDOMCaretPosition() |
21 | 0 | { |
22 | 0 | } |
23 | | |
24 | | nsINode* nsDOMCaretPosition::GetOffsetNode() const |
25 | 0 | { |
26 | 0 | return mOffsetNode; |
27 | 0 | } |
28 | | |
29 | | already_AddRefed<DOMRect> |
30 | | nsDOMCaretPosition::GetClientRect() const |
31 | 0 | { |
32 | 0 | if (!mOffsetNode) { |
33 | 0 | return nullptr; |
34 | 0 | } |
35 | 0 | |
36 | 0 | RefPtr<DOMRect> rect; |
37 | 0 | RefPtr<nsRange> domRange; |
38 | 0 | nsCOMPtr<nsINode> node; |
39 | 0 |
|
40 | 0 | if (mAnonymousContentNode) { |
41 | 0 | node = mAnonymousContentNode; |
42 | 0 | } else { |
43 | 0 | node = mOffsetNode; |
44 | 0 | } |
45 | 0 |
|
46 | 0 | nsresult creationRv = nsRange::CreateRange(node, mOffset, node, |
47 | 0 | mOffset, |
48 | 0 | getter_AddRefs<nsRange>(domRange)); |
49 | 0 | if (!NS_SUCCEEDED(creationRv)) { |
50 | 0 | return nullptr; |
51 | 0 | } |
52 | 0 | |
53 | 0 | NS_ASSERTION(domRange, "unable to retrieve valid dom range from CaretPosition"); |
54 | 0 |
|
55 | 0 | rect = domRange->GetBoundingClientRect(false); |
56 | 0 |
|
57 | 0 | return rect.forget(); |
58 | 0 | } |
59 | | |
60 | | JSObject* |
61 | | nsDOMCaretPosition::WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) |
62 | 0 | { |
63 | 0 | return mozilla::dom::CaretPosition_Binding::Wrap(aCx, this, aGivenProto); |
64 | 0 | } |
65 | | |
66 | | NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMCaretPosition, |
67 | | mOffsetNode, mAnonymousContentNode) |
68 | | |
69 | | NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCaretPosition) |
70 | | NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCaretPosition) |
71 | | |
72 | 0 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCaretPosition) |
73 | 0 | NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY |
74 | 0 | NS_INTERFACE_MAP_ENTRY(nsISupports) |
75 | 0 | NS_INTERFACE_MAP_END |
76 | | |