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 
11 #include <utility>
12 
13 #include "mozilla/ErrorResult.h"
14 #include "nsString.h"
15 
16 using namespace mozilla;
17 using namespace mozilla::dom;
18 
nsDOMCSSValueList(bool aCommaDelimited)19 nsDOMCSSValueList::nsDOMCSSValueList(bool aCommaDelimited)
20     : CSSValue(), mCommaDelimited(aCommaDelimited) {}
21 
22 nsDOMCSSValueList::~nsDOMCSSValueList() = default;
23 
AppendCSSValue(already_AddRefed<CSSValue> aValue)24 void nsDOMCSSValueList::AppendCSSValue(already_AddRefed<CSSValue> aValue) {
25   RefPtr<CSSValue> val = aValue;
26   mCSSValues.AppendElement(std::move(val));
27 }
28 
GetCssText(nsAString & aCssText)29 void nsDOMCSSValueList::GetCssText(nsAString& aCssText) {
30   aCssText.Truncate();
31 
32   uint32_t count = mCSSValues.Length();
33 
34   nsAutoString separator;
35   if (mCommaDelimited) {
36     separator.AssignLiteral(", ");
37   } else {
38     separator.Assign(char16_t(' '));
39   }
40 
41   nsAutoString tmpStr;
42   for (uint32_t i = 0; i < count; ++i) {
43     CSSValue* cssValue = mCSSValues[i];
44     NS_ASSERTION(cssValue,
45                  "Eek!  Someone filled the value list with null CSSValues!");
46     ErrorResult dummy;
47     if (cssValue) {
48       cssValue->GetCssText(tmpStr, dummy);
49 
50       if (tmpStr.IsEmpty()) {
51 #ifdef DEBUG_caillon
52         NS_ERROR("Eek!  An empty CSSValue!  Bad!");
53 #endif
54 
55         continue;
56       }
57 
58       // If this isn't the first item in the list, then
59       // it's ok to append a separator.
60       if (!aCssText.IsEmpty()) {
61         aCssText.Append(separator);
62       }
63       aCssText.Append(tmpStr);
64     }
65   }
66 }
67 
GetCssText(nsString & aCssText,ErrorResult & aRv)68 void nsDOMCSSValueList::GetCssText(nsString& aCssText, ErrorResult& aRv) {
69   GetCssText(aCssText);
70 }
71