9862ad8cc8f8 — Jorge Arellano Cid 8 years ago
Merged commit #4653 (float clearance).

Test case:

<body>
    <div id="a">
        <div id="b" style="float:left">main</div>
    </div>
    <div id="c" style="clear:left"></div>
    <div id="d">footer</div>
</body>


Note: passes all the tests at
      http://www.dillo.org/test/4648/test-suite.v1.txt
3 files changed, 43 insertions(+), 3 deletions(-)

M dw/ooffloatsmgr.cc
M dw/ooffloatsmgr.hh
M dw/textblock.cc
M dw/ooffloatsmgr.cc +35 -2
@@ 657,6 657,19 @@ void OOFFloatsMgr::markSizeChange (int r
    vloat->dirty = true;
    DBG_OBJ_SET_BOOL_O (vloat->getWidget (), "<Float>.dirty", vloat->dirty);
 
+   updateGenerators (vloat);
+
+   DBG_OBJ_LEAVE ();
+}
+
+/**
+ * \brief Update all generators which are affected by a given float.
+ */
+void OOFFloatsMgr::updateGenerators (Float *vloat)
+{
+   DBG_OBJ_ENTER ("resize.oofm", 0, "updateGenerators", "#%d [%p]",
+                  vloat->index, vloat->getWidget ());
+
    assert (vloat->getWidget()->getWidgetReference() != NULL);
 
    int first = getOOFAwareWidget(vloat->generator)->index;

          
@@ 674,8 687,7 @@ void OOFFloatsMgr::markSizeChange (int r
       tbInfos->get(i)->getOOFAwareWidget()->updateReference(0);
 
    SizeChanged = false; // Done.
-   DBG_OBJ_SET_BOOL ("SizeChanged", SizeChanged);
-   
+
    DBG_OBJ_LEAVE ();
 }
 

          
@@ 749,6 761,8 @@ void OOFFloatsMgr::tellPosition1 (Widget
    getFloatsListsAndSide (vloat, &listSame, &listOpp, &side);
    ensureFloatSize (vloat);
 
+   int oldYReal = vloat->yReal;
+
    // "yReal" may change due to collisions (see below).
    vloat->yReq = vloat->yReal = y;
 

          
@@ 813,6 827,25 @@ void OOFFloatsMgr::tellPosition1 (Widget
    DBG_OBJ_MSGF ("resize.oofm", 1, "vloat->yReq = %d, vloat->yReal = %d",
                  vloat->yReq, vloat->yReal);
 
+   // In some cases, an explicit update is neccessary, as in this example:
+   //
+   // <body>
+   //     <div id="a">
+   //         <div id="b" style="float:left">main</div>
+   //     </div>
+   //     <div id="c" style="clear:both">x</div>
+   //     <div id="d">footer</div>
+   // </body>
+   //
+   // Without an explicit update, #c would keep an old value for extraSpace.top,
+   // based on the old value of vloat->yReal.
+   //
+   // Notice that #c would be updated otherwise, if it had at least one word
+   // content.
+
+   if (vloat->yReal != oldYReal)
+      updateGenerators (vloat);
+
    DBG_OBJ_LEAVE ();
 }
 

          
M dw/ooffloatsmgr.hh +1 -0
@@ 170,6 170,7 @@ private:
    void moveExternalIndices (lout::container::typed::Vector<Float> *list,
                              int oldStartIndex, int diff);
    Float *findFloatByWidget (core::Widget *widget);
+   void updateGenerators (Float *vloat);
    int findTBInfo (int y);
 
    void sizeAllocateFloats (Side side);

          
M dw/textblock.cc +7 -1
@@ 3044,8 3044,14 @@ void Textblock::queueDrawRange (int inde
 
 void Textblock::updateReference (int ref)
 {
-   if (words->size () > 0)
+   DBG_OBJ_ENTER ("resize", 0, "updateReference", "%d", ref);
+
+   // Only `queueResize` when there're words or float clearance
+   // (float clearance may change `extraSpace.top`).
+   if (words->size () > 0 || getStyle()->clear != core::style::CLEAR_NONE)
       queueResize (ref, false);
+
+   DBG_OBJ_LEAVE ();
 }
 
 void Textblock::widgetRefSizeChanged (int externalIndex)