content/base/src/nsDOMCaretPosition.cpp@6474c204b198 (annotated)
content/base/src/nsDOMCaretPosition.cpp
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | #include "nsDOMCaretPosition.h" |
| michael@0 | 6 | |
| michael@0 | 7 | #include "mozilla/dom/CaretPositionBinding.h" |
| michael@0 | 8 | #include "mozilla/dom/DOMRect.h" |
| michael@0 | 9 | #include "nsRange.h" |
| michael@0 | 10 | |
| michael@0 | 11 | using namespace mozilla::dom; |
| michael@0 | 12 | |
| michael@0 | 13 | nsDOMCaretPosition::nsDOMCaretPosition(nsINode* aNode, uint32_t aOffset) |
| michael@0 | 14 | : mOffset(aOffset), mOffsetNode(aNode), mAnonymousContentNode(nullptr) |
| michael@0 | 15 | { |
| michael@0 | 16 | SetIsDOMBinding(); |
| michael@0 | 17 | } |
| michael@0 | 18 | |
| michael@0 | 19 | nsDOMCaretPosition::~nsDOMCaretPosition() |
| michael@0 | 20 | { |
| michael@0 | 21 | } |
| michael@0 | 22 | |
| michael@0 | 23 | nsINode* nsDOMCaretPosition::GetOffsetNode() const |
| michael@0 | 24 | { |
| michael@0 | 25 | return mOffsetNode; |
| michael@0 | 26 | } |
| michael@0 | 27 | |
| michael@0 | 28 | already_AddRefed<DOMRect> |
| michael@0 | 29 | nsDOMCaretPosition::GetClientRect() const |
| michael@0 | 30 | { |
| michael@0 | 31 | if (!mOffsetNode) { |
| michael@0 | 32 | return nullptr; |
| michael@0 | 33 | } |
| michael@0 | 34 | |
| michael@0 | 35 | nsRefPtr<DOMRect> rect; |
| michael@0 | 36 | nsRefPtr<nsRange> domRange; |
| michael@0 | 37 | nsCOMPtr<nsINode> node; |
| michael@0 | 38 | |
| michael@0 | 39 | if (mAnonymousContentNode) { |
| michael@0 | 40 | node = mAnonymousContentNode; |
| michael@0 | 41 | } else { |
| michael@0 | 42 | node = mOffsetNode; |
| michael@0 | 43 | } |
| michael@0 | 44 | |
| michael@0 | 45 | nsresult creationRv = nsRange::CreateRange(node, mOffset, node, |
| michael@0 | 46 | mOffset, |
| michael@0 | 47 | getter_AddRefs<nsRange>(domRange)); |
| michael@0 | 48 | if (!NS_SUCCEEDED(creationRv)) { |
| michael@0 | 49 | return nullptr; |
| michael@0 | 50 | } |
| michael@0 | 51 | |
| michael@0 | 52 | NS_ASSERTION(domRange, "unable to retrieve valid dom range from CaretPosition"); |
| michael@0 | 53 | |
| michael@0 | 54 | rect = domRange->GetBoundingClientRect(); |
| michael@0 | 55 | |
| michael@0 | 56 | return rect.forget(); |
| michael@0 | 57 | } |
| michael@0 | 58 | |
| michael@0 | 59 | JSObject* |
| michael@0 | 60 | nsDOMCaretPosition::WrapObject(JSContext *aCx) |
| michael@0 | 61 | { |
| michael@0 | 62 | return mozilla::dom::CaretPositionBinding::Wrap(aCx, this); |
| michael@0 | 63 | } |
| michael@0 | 64 | |
| michael@0 | 65 | NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_2(nsDOMCaretPosition, |
| michael@0 | 66 | mOffsetNode, mAnonymousContentNode) |
| michael@0 | 67 | |
| michael@0 | 68 | NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCaretPosition) |
| michael@0 | 69 | NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCaretPosition) |
| michael@0 | 70 | |
| michael@0 | 71 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCaretPosition) |
| michael@0 | 72 | NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY |
| michael@0 | 73 | NS_INTERFACE_MAP_ENTRY(nsISupports) |
| michael@0 | 74 | NS_INTERFACE_MAP_END |
| michael@0 | 75 |
