blob: 898e81d4f55d5514e480da6a5afd83b1d416f840 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "Flex.h"
#include "FlexLineValues.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/FlexBinding.h"
#include "nsFlexContainerFrame.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(Flex, mParent, mLines)
NS_IMPL_CYCLE_COLLECTING_ADDREF(Flex)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Flex)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Flex)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
Flex::Flex(Element* aParent, nsFlexContainerFrame* aFrame) : mParent(aParent) {
MOZ_ASSERT(aFrame,
"Should never be instantiated with a null nsFlexContainerFrame");
// Eagerly create property values from aFrame, because we're not
// going to keep it around.
const ComputedFlexContainerInfo* containerInfo =
aFrame->GetFlexContainerInfo();
if (!containerInfo) {
// It's weird but possible to fail to get a ComputedFlexContainerInfo
// structure. Assign sensible default values.
mMainAxisDirection = FlexPhysicalDirection::Horizontal_lr;
mCrossAxisDirection = FlexPhysicalDirection::Vertical_tb;
return;
}
mLines.SetLength(containerInfo->mLines.Length());
uint32_t index = 0;
for (auto&& l : containerInfo->mLines) {
FlexLineValues* line = new FlexLineValues(this, &l);
mLines.ElementAt(index) = line;
index++;
}
mMainAxisDirection = containerInfo->mMainAxisDirection;
mCrossAxisDirection = containerInfo->mCrossAxisDirection;
}
JSObject* Flex::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return Flex_Binding::Wrap(aCx, this, aGivenProto);
}
void Flex::GetLines(nsTArray<RefPtr<FlexLineValues>>& aResult) {
aResult.AppendElements(mLines);
}
FlexPhysicalDirection Flex::MainAxisDirection() const {
return mMainAxisDirection;
}
FlexPhysicalDirection Flex::CrossAxisDirection() const {
return mCrossAxisDirection;
}
} // namespace mozilla::dom
|
