From 14a54bf2e11446b822cc32f610f13368aa7d5233 Mon Sep 17 00:00:00 2001

From: Michael Stahl <mstahl@redhat.com>

Date: Wed, 25 Jan 2017 16:42:16 +0100

Subject: [PATCH] sw: revert ToX hyperlinks to LO 4.3 behaviour

Commit 94b296d5416dd71d721ad16216b50bce79e3dc04 changed this to

potentially insert multiple overlapping hyperlink items.

Unfortunately Writer can only have one RES_TXTATR_INETFMT on any given

position in the paragraph, so the hyperlink hints inevitably overwrite

each other.

Revert this to do it the same way as the old code in LO 4.3 did: match

the last unmatched link-start with the first link-end, and ignore all

the link-start before the matching one, as well as the link-end after

the matching one.

This should prevent surprising formatting changes on index update,

including entries spontaneously turning green, and there is no reason

why the result of the new way is objectively better than the old one.

Change-Id: I55be9c212c473908428fa8bd6487d136343fe852

(cherry picked from commit 68f7be01a78a5bad56ddd94c04764131676d6cc0)

sw: stop swapping start and end position of links in ToX

This causes:

sw/source/core/txtnode/thints.cxx:3198: +SwpHints::Insert: invalid hint, end < start

Change-Id: I933c790127ab1469bb57c4d288dbb49be16ace19

(cherry picked from commit 4a43ffcef946067c5b3992a00c765a36804a194f)

---

 sw/inc/ToxLinkProcessor.hxx             |  9 +++++---

 sw/qa/core/test_ToxLinkProcessor.cxx    | 38 +++++++++++++++------------------

 sw/source/core/tox/ToxLinkProcessor.cxx | 18 ++++++++--------

 3 files changed, 32 insertions(+), 33 deletions(-)

diff --git a/sw/inc/ToxLinkProcessor.hxx b/sw/inc/ToxLinkProcessor.hxx

index 699c0ec..78bb7fb 100644

--- a/sw/inc/ToxLinkProcessor.hxx

+++ b/sw/inc/ToxLinkProcessor.hxx

@@ -69,8 +69,11 @@ private:

      * A link is closed if it has both a start and an end token.

      */

     struct ClosedLink {

-        ClosedLink(const OUString& url, sal_Int32 startPosition, sal_Int32 endPosition) :

-                mINetFormat(url, OUString()), mStartTextPos(endPosition), mEndTextPos(startPosition) {

+        ClosedLink(const OUString& url, sal_Int32 startPosition, sal_Int32 endPosition)

+            : mINetFormat(url, OUString())

+            , mStartTextPos(startPosition)

+            , mEndTextPos(endPosition)

+        {

         }

         SwFormatINetFormat mINetFormat;

         sal_Int32 mStartTextPos;

@@ -79,7 +82,7 @@ private:

     std::vector<std::unique_ptr<ClosedLink>> m_ClosedLinks;

-    std::vector<std::unique_ptr<StartedLink>> m_StartedLinks;

+    std::unique_ptr<StartedLink> m_pStartedLink;

     friend class ::ToxLinkProcessorTest;

 };

diff --git a/sw/qa/core/test_ToxLinkProcessor.cxx b/sw/qa/core/test_ToxLinkProcessor.cxx

index 0a15982..d2d4721 100644

--- a/sw/qa/core/test_ToxLinkProcessor.cxx

+++ b/sw/qa/core/test_ToxLinkProcessor.cxx

@@ -30,17 +30,15 @@ using namespace sw;

 class ToxLinkProcessorTest : public test::BootstrapFixture

 {

     void NoExceptionIsThrownIfTooManyLinksAreClosed();

-    void AddingAndClosingTwoLinksResultsInTwoClosedLinks();

+    void AddingAndClosingTwoOverlappingLinksResultsInOneClosedLink();

     void LinkIsCreatedCorrectly();

     void LinkSequenceIsPreserved();

-    void StandardOpenLinkIsAddedWhenMoreLinksThanAvaiableAreClosed();

     CPPUNIT_TEST_SUITE(ToxLinkProcessorTest);

     CPPUNIT_TEST(NoExceptionIsThrownIfTooManyLinksAreClosed);

-    CPPUNIT_TEST(AddingAndClosingTwoLinksResultsInTwoClosedLinks);

+    CPPUNIT_TEST(AddingAndClosingTwoOverlappingLinksResultsInOneClosedLink);

     CPPUNIT_TEST(LinkIsCreatedCorrectly);

     CPPUNIT_TEST(LinkSequenceIsPreserved);

-    CPPUNIT_TEST(StandardOpenLinkIsAddedWhenMoreLinksThanAvaiableAreClosed);

     CPPUNIT_TEST_SUITE_END();

 public:

     void setUp() override {

@@ -71,30 +69,28 @@ ToxLinkProcessorTest::NoExceptionIsThrownIfTooManyLinksAreClosed()

     sut.CloseLink(1, URL_1);

     // fdo#85872 actually it turns out the UI does something like this

     // so an exception must not be thrown!

-    sut.CloseLink(1, URL_1);

+    // should not succeed either (for backward compatibility)

+    sut.CloseLink(2, URL_1);

+    CPPUNIT_ASSERT_EQUAL(1u, static_cast<unsigned>(sut.m_ClosedLinks.size()));

+    CPPUNIT_ASSERT_EQUAL(1u, static_cast<unsigned>(sut.m_ClosedLinks.at(0)->mEndTextPos));

+    CPPUNIT_ASSERT_MESSAGE("no links are open", sut.m_pStartedLink == nullptr);

 }

 void

-ToxLinkProcessorTest::StandardOpenLinkIsAddedWhenMoreLinksThanAvaiableAreClosed()

-{

-    ToxLinkProcessor sut;

-    sut.StartNewLink(0, STYLE_NAME_1);

-    sut.CloseLink(1, URL_1);

-    sut.CloseLink(1, URL_1);

-    CPPUNIT_ASSERT_EQUAL(2u, static_cast<unsigned>(sut.m_ClosedLinks.size()));

-    CPPUNIT_ASSERT_EQUAL(0u, static_cast<unsigned>(sut.m_ClosedLinks.at(1)->mEndTextPos));

-}

-

-void

-ToxLinkProcessorTest::AddingAndClosingTwoLinksResultsInTwoClosedLinks()

+ToxLinkProcessorTest::AddingAndClosingTwoOverlappingLinksResultsInOneClosedLink()

 {

     ToxLinkProcessor sut;

     sut.StartNewLink(0, STYLE_NAME_1);

     sut.StartNewLink(0, STYLE_NAME_2);

     sut.CloseLink(1, URL_1);

+    // this should not cause an error, and should not succeed either

+    // (for backward compatibility)

     sut.CloseLink(1, URL_2);

-    CPPUNIT_ASSERT_EQUAL(2u, static_cast<unsigned>(sut.m_ClosedLinks.size()));

-    CPPUNIT_ASSERT_MESSAGE("no links are open", sut.m_StartedLinks.empty());

+    CPPUNIT_ASSERT_EQUAL(1u, static_cast<unsigned>(sut.m_ClosedLinks.size()));

+    CPPUNIT_ASSERT_MESSAGE("no links are open", sut.m_pStartedLink == nullptr);

+    // backward compatibility: the last start is closed by the first end

+    CPPUNIT_ASSERT_EQUAL(STYLE_NAME_2, sut.m_ClosedLinks[0]->mINetFormat.GetINetFormat());

+    CPPUNIT_ASSERT_EQUAL(URL_1, sut.m_ClosedLinks[0]->mINetFormat.GetValue());

 }

 class ToxLinkProcessorWithOverriddenObtainPoolId : public ToxLinkProcessor {

@@ -131,10 +127,10 @@ ToxLinkProcessorTest::LinkSequenceIsPreserved()

     // obtainpoolid needs to be overridden to check what we are

     ToxLinkProcessorWithOverriddenObtainPoolId sut;

-    sut.StartNewLink(0, STYLE_NAME_1);

     sut.StartNewLink(0, STYLE_NAME_2);

     sut.CloseLink(1, URL_2);

-    sut.CloseLink(1, URL_1);

+    sut.StartNewLink(1, STYLE_NAME_1);

+    sut.CloseLink(2, URL_1);

     // check first closed element

     CPPUNIT_ASSERT_EQUAL_MESSAGE("Style is stored correctly in link",

diff --git a/sw/source/core/tox/ToxLinkProcessor.cxx b/sw/source/core/tox/ToxLinkProcessor.cxx

index 1ef40d2..f9fa4c1 100644

--- a/sw/source/core/tox/ToxLinkProcessor.cxx

+++ b/sw/source/core/tox/ToxLinkProcessor.cxx

@@ -21,19 +21,18 @@ namespace sw {

 void

 ToxLinkProcessor::StartNewLink(sal_Int32 startPosition, const OUString& characterStyle)

 {

-    m_StartedLinks.push_back(o3tl::make_unique<StartedLink>(

-                startPosition, characterStyle));

+    SAL_INFO_IF(m_pStartedLink, "sw.core", "ToxLinkProcessor: LS without LE");

+    m_pStartedLink = o3tl::make_unique<StartedLink>(

+                startPosition, characterStyle);

 }

 void

 ToxLinkProcessor::CloseLink(sal_Int32 endPosition, const OUString& url)

 {

-    StartedLink const startedLink( (m_StartedLinks.empty())

-        ? StartedLink(0, SW_RES(STR_POOLCHR_TOXJUMP))

-        : *m_StartedLinks.back() );

-    if (!m_StartedLinks.empty())

+    if (m_pStartedLink == nullptr)

     {

-        m_StartedLinks.pop_back();

+        SAL_INFO("sw.core", "ToxLinkProcessor: LE without LS");

+        return;

     }

     if (url.isEmpty()) {

@@ -41,14 +40,15 @@ ToxLinkProcessor::CloseLink(sal_Int32 endPosition, const OUString& url)

     }

     std::unique_ptr<ClosedLink> pClosedLink(

-            new ClosedLink(url, startedLink.mStartPosition, endPosition));

+            new ClosedLink(url, m_pStartedLink->mStartPosition, endPosition));

-    const OUString& characterStyle = startedLink.mCharacterStyle;

+    const OUString& characterStyle = m_pStartedLink->mCharacterStyle;

     sal_uInt16 poolId = ObtainPoolId(characterStyle);

     pClosedLink->mINetFormat.SetVisitedFormatAndId(characterStyle, poolId);

     pClosedLink->mINetFormat.SetINetFormatAndId(characterStyle, poolId);

     m_ClosedLinks.push_back(std::move(pClosedLink));

+    m_pStartedLink.reset();

 }

 sal_uInt16

-- 

2.9.3