layout/base/nsQuoteList.h@b8a032363ba2 (annotated)
layout/base/nsQuoteList.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | /* implementation of quotes for the CSS 'content' property */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef nsQuoteList_h___ |
| michael@0 | 9 | #define nsQuoteList_h___ |
| michael@0 | 10 | |
| michael@0 | 11 | #include "mozilla/Attributes.h" |
| michael@0 | 12 | #include "nsGenConList.h" |
| michael@0 | 13 | |
| michael@0 | 14 | struct nsQuoteNode : public nsGenConNode { |
| michael@0 | 15 | // open-quote, close-quote, no-open-quote, or no-close-quote |
| michael@0 | 16 | const nsStyleContentType mType; |
| michael@0 | 17 | |
| michael@0 | 18 | // Quote depth before this quote, which is always non-negative. |
| michael@0 | 19 | int32_t mDepthBefore; |
| michael@0 | 20 | |
| michael@0 | 21 | nsQuoteNode(nsStyleContentType& aType, uint32_t aContentIndex) |
| michael@0 | 22 | : nsGenConNode(aContentIndex) |
| michael@0 | 23 | , mType(aType) |
| michael@0 | 24 | , mDepthBefore(0) |
| michael@0 | 25 | { |
| michael@0 | 26 | NS_ASSERTION(aType == eStyleContentType_OpenQuote || |
| michael@0 | 27 | aType == eStyleContentType_CloseQuote || |
| michael@0 | 28 | aType == eStyleContentType_NoOpenQuote || |
| michael@0 | 29 | aType == eStyleContentType_NoCloseQuote, |
| michael@0 | 30 | "incorrect type"); |
| michael@0 | 31 | NS_ASSERTION(aContentIndex <= INT32_MAX, "out of range"); |
| michael@0 | 32 | } |
| michael@0 | 33 | |
| michael@0 | 34 | virtual bool InitTextFrame(nsGenConList* aList, |
| michael@0 | 35 | nsIFrame* aPseudoFrame, nsIFrame* aTextFrame) MOZ_OVERRIDE; |
| michael@0 | 36 | |
| michael@0 | 37 | // is this 'open-quote' or 'no-open-quote'? |
| michael@0 | 38 | bool IsOpenQuote() { |
| michael@0 | 39 | return mType == eStyleContentType_OpenQuote || |
| michael@0 | 40 | mType == eStyleContentType_NoOpenQuote; |
| michael@0 | 41 | } |
| michael@0 | 42 | |
| michael@0 | 43 | // is this 'close-quote' or 'no-close-quote'? |
| michael@0 | 44 | bool IsCloseQuote() { |
| michael@0 | 45 | return !IsOpenQuote(); |
| michael@0 | 46 | } |
| michael@0 | 47 | |
| michael@0 | 48 | // is this 'open-quote' or 'close-quote'? |
| michael@0 | 49 | bool IsRealQuote() { |
| michael@0 | 50 | return mType == eStyleContentType_OpenQuote || |
| michael@0 | 51 | mType == eStyleContentType_CloseQuote; |
| michael@0 | 52 | } |
| michael@0 | 53 | |
| michael@0 | 54 | // Depth of the quote for *this* node. Either non-negative or -1. |
| michael@0 | 55 | // -1 means this is a closing quote that tried to decrement the |
| michael@0 | 56 | // counter below zero (which means no quote should be rendered). |
| michael@0 | 57 | int32_t Depth() { |
| michael@0 | 58 | return IsOpenQuote() ? mDepthBefore : mDepthBefore - 1; |
| michael@0 | 59 | } |
| michael@0 | 60 | |
| michael@0 | 61 | // always non-negative |
| michael@0 | 62 | int32_t DepthAfter() { |
| michael@0 | 63 | return IsOpenQuote() ? mDepthBefore + 1 |
| michael@0 | 64 | : (mDepthBefore == 0 ? 0 : mDepthBefore - 1); |
| michael@0 | 65 | } |
| michael@0 | 66 | |
| michael@0 | 67 | // The text that should be displayed for this quote. |
| michael@0 | 68 | const nsString* Text(); |
| michael@0 | 69 | }; |
| michael@0 | 70 | |
| michael@0 | 71 | class nsQuoteList : public nsGenConList { |
| michael@0 | 72 | private: |
| michael@0 | 73 | nsQuoteNode* FirstNode() { return static_cast<nsQuoteNode*>(mFirstNode); } |
| michael@0 | 74 | public: |
| michael@0 | 75 | // assign the correct |mDepthBefore| value to a node that has been inserted |
| michael@0 | 76 | // Should be called immediately after calling |Insert|. |
| michael@0 | 77 | void Calc(nsQuoteNode* aNode); |
| michael@0 | 78 | |
| michael@0 | 79 | nsQuoteNode* Next(nsQuoteNode* aNode) { |
| michael@0 | 80 | return static_cast<nsQuoteNode*>(nsGenConList::Next(aNode)); |
| michael@0 | 81 | } |
| michael@0 | 82 | nsQuoteNode* Prev(nsQuoteNode* aNode) { |
| michael@0 | 83 | return static_cast<nsQuoteNode*>(nsGenConList::Prev(aNode)); |
| michael@0 | 84 | } |
| michael@0 | 85 | |
| michael@0 | 86 | void RecalcAll(); |
| michael@0 | 87 | #ifdef DEBUG |
| michael@0 | 88 | void PrintChain(); |
| michael@0 | 89 | #endif |
| michael@0 | 90 | }; |
| michael@0 | 91 | |
| michael@0 | 92 | #endif /* nsQuoteList_h___ */ |
