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 /* DOM object representing lists of values in DOM computed style */
8
9 #include "nsDOMCSSValueList.h"
10 #include "mozilla/dom/CSSValueBinding.h"
11 #include "mozilla/dom/CSSValueListBinding.h"
12 #include "mozilla/Move.h"
13
14 using namespace mozilla;
15 using namespace mozilla::dom;
16
nsDOMCSSValueList(bool aCommaDelimited,bool aReadonly)17 nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited, bool aReadonly)
18 : CSSValue(), mCommaDelimited(aCommaDelimited), mReadonly(aReadonly) {}
19
~nsDOMCSSValueList()20 nsDOMCSSValueList::~nsDOMCSSValueList() {}
21
22 NS_IMPL_CYCLE_COLLECTING_ADDREF(nsDOMCSSValueList)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCSSValueList)23 NS_IMPL_CYCLE_COLLECTING_RELEASE(nsDOMCSSValueList)
24
25 // QueryInterface implementation for nsDOMCSSValueList
26 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsDOMCSSValueList)
27 NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
28 NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, CSSValue)
29 NS_INTERFACE_MAP_END
30
31 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsDOMCSSValueList, mCSSValues)
32
33 JSObject* nsDOMCSSValueList::WrapObject(JSContext* cx,
34 JS::Handle<JSObject*> aGivenProto) {
35 return dom::CSSValueListBinding::Wrap(cx, this, aGivenProto);
36 }
37
AppendCSSValue(already_AddRefed<CSSValue> aValue)38 void nsDOMCSSValueList::AppendCSSValue(already_AddRefed<CSSValue> aValue) {
39 RefPtr<CSSValue> val = aValue;
40 mCSSValues.AppendElement(Move(val));
41 }
42
GetCssText(nsAString & aCssText)43 void nsDOMCSSValueList::GetCssText(nsAString& aCssText) {
44 aCssText.Truncate();
45
46 uint32_t count = mCSSValues.Length();
47
48 nsAutoString separator;
49 if (mCommaDelimited) {
50 separator.AssignLiteral(", ");
51 } else {
52 separator.Assign(char16_t(' '));
53 }
54
55 nsAutoString tmpStr;
56 for (uint32_t i = 0; i < count; ++i) {
57 CSSValue* cssValue = mCSSValues[i];
58 NS_ASSERTION(cssValue,
59 "Eek! Someone filled the value list with null CSSValues!");
60 ErrorResult dummy;
61 if (cssValue) {
62 cssValue->GetCssText(tmpStr, dummy);
63
64 if (tmpStr.IsEmpty()) {
65 #ifdef DEBUG_caillon
66 NS_ERROR("Eek! An empty CSSValue! Bad!");
67 #endif
68
69 continue;
70 }
71
72 // If this isn't the first item in the list, then
73 // it's ok to append a separator.
74 if (!aCssText.IsEmpty()) {
75 aCssText.Append(separator);
76 }
77 aCssText.Append(tmpStr);
78 }
79 }
80 }
81
GetCssText(nsString & aCssText,ErrorResult & aRv)82 void nsDOMCSSValueList::GetCssText(nsString& aCssText, ErrorResult& aRv) {
83 GetCssText(aCssText);
84 }
85
SetCssText(const nsAString & aText,ErrorResult & aRv)86 void nsDOMCSSValueList::SetCssText(const nsAString& aText, ErrorResult& aRv) {
87 if (mReadonly) {
88 aRv.Throw(NS_ERROR_DOM_NO_MODIFICATION_ALLOWED_ERR);
89 return;
90 }
91
92 MOZ_ASSERT_UNREACHABLE("Can't SetCssText yet: please write me!");
93 }
94
CssValueType() const95 uint16_t nsDOMCSSValueList::CssValueType() const {
96 return CSSValueBinding::CSS_VALUE_LIST;
97 }
98