1 files changed, 175 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/editing/BreakBlockquoteCommand.cpp b/src/3rdparty/webkit/WebCore/editing/BreakBlockquoteCommand.cpp
new file mode 100644
index 0000000..76a0890
--- /dev/null
+++ b/src/3rdparty/webkit/WebCore/editing/BreakBlockquoteCommand.cpp
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "BreakBlockquoteCommand.h"
+
+#include "Element.h"
+#include "HTMLNames.h"
+#include "Text.h"
+#include "VisiblePosition.h"
+#include "htmlediting.h"
+#include "RenderListItem.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+BreakBlockquoteCommand::BreakBlockquoteCommand(Document *document)
+    : CompositeEditCommand(document)
+{
+}
+
+void BreakBlockquoteCommand::doApply()
+{
+    if (endingSelection().isNone())
+        return;
+    
+    // Delete the current selection.
+    if (endingSelection().isRange())
+        deleteSelection(false, false);
+    
+    VisiblePosition visiblePos = endingSelection().visibleStart();
+    // pos is a position equivalent to the caret.  We use downstream() so that pos will 
+    // be in the first node that we need to move (there are a few exceptions to this, see below).
+    Position pos = endingSelection().start().downstream();
+    
+    // startNode is the first node that we need to move to the new blockquote.
+    Node* startNode = pos.node();
+    // Find the top-most blockquote from the start.
+    Element* topBlockquote = 0;
+    for (Node *node = startNode->parentNode(); node; node = node->parentNode()) {
+        if (isMailBlockquote(node))
+            topBlockquote = static_cast<Element*>(node);
+    }
+    if (!topBlockquote || !topBlockquote->parentNode())
+        return;
+    
+    // Insert a break after the top blockquote.
+    RefPtr<Element> breakNode = createBreakElement(document());
+    insertNodeAfter(breakNode.get(), topBlockquote);
+    
+    if (isLastVisiblePositionInNode(visiblePos, topBlockquote)) {
+        setEndingSelection(Selection(Position(breakNode.get(), 0), DOWNSTREAM));
+        rebalanceWhitespace();   
+        return;
+    }
+    
+    // Don't move a line break just after the caret.  Doing so would create an extra, empty paragraph
+    // in the new blockquote.
+    if (lineBreakExistsAtPosition(visiblePos))
+        pos = pos.next();
+        
+    // Split at pos if in the middle of a text node.
+    if (startNode->isTextNode()) {
+        Text* textNode = static_cast<Text*>(startNode);
+        if ((unsigned)pos.offset() >= textNode->length()) {
+            startNode = startNode->traverseNextNode();
+            ASSERT(startNode);
+        } else if (pos.offset() > 0)
+            splitTextNode(textNode, pos.offset());
+    } else if (pos.offset() > 0) {
+        startNode = startNode->traverseNextNode();
+        ASSERT(startNode);
+    }
+    
+    // If there's nothing inside topBlockquote to move, we're finished.
+    if (!startNode->isDescendantOf(topBlockquote)) {
+        setEndingSelection(Selection(VisiblePosition(Position(startNode, 0))));
+        return;
+    }
+    
+    // Build up list of ancestors in between the start node and the top blockquote.
+    Vector<Element*> ancestors;    
+    for (Element* node = startNode->parentElement(); node && node != topBlockquote; node = node->parentElement())
+        ancestors.append(node);
+    
+    // Insert a clone of the top blockquote after the break.
+    RefPtr<Element> clonedBlockquote = topBlockquote->cloneElement();
+    insertNodeAfter(clonedBlockquote.get(), breakNode.get());
+    
+    // Clone startNode's ancestors into the cloned blockquote.
+    // On exiting this loop, clonedAncestor is the lowest ancestor
+    // that was cloned (i.e. the clone of either ancestors.last()
+    // or clonedBlockquote if ancestors is empty).
+    RefPtr<Element> clonedAncestor = clonedBlockquote;
+    for (size_t i = ancestors.size(); i != 0; --i) {
+        RefPtr<Element> clonedChild = ancestors[i - 1]->cloneElement(); // shallow clone
+        // Preserve list item numbering in cloned lists.
+        if (clonedChild->isElementNode() && clonedChild->hasTagName(olTag)) {
+            Node* listChildNode = i > 1 ? ancestors[i - 2] : startNode;
+            // The first child of the cloned list might not be a list item element, 
+            // find the first one so that we know where to start numbering.
+            while (listChildNode && !listChildNode->hasTagName(liTag))
+                listChildNode = listChildNode->nextSibling();
+            if (listChildNode && listChildNode->renderer())
+                setNodeAttribute(static_cast<Element*>(clonedChild.get()), startAttr, String::number(static_cast<RenderListItem*>(listChildNode->renderer())->value()));
+        }
+            
+        appendNode(clonedChild.get(), clonedAncestor.get());
+        clonedAncestor = clonedChild;
+    }
+    
+    // Move the startNode and its siblings.
+    Node *moveNode = startNode;
+    while (moveNode) {
+        Node *next = moveNode->nextSibling();
+        removeNode(moveNode);
+        appendNode(moveNode, clonedAncestor.get());
+        moveNode = next;
+    }
+
+    // Hold open startNode's original parent if we emptied it
+    if (!ancestors.isEmpty()) {
+        addBlockPlaceholderIfNeeded(ancestors.first());
+
+        // Split the tree up the ancestor chain until the topBlockquote
+        // Throughout this loop, clonedParent is the clone of ancestor's parent.
+        // This is so we can clone ancestor's siblings and place the clones
+        // into the clone corresponding to the ancestor's parent.
+        Element* ancestor;
+        Element* clonedParent;
+        for (ancestor = ancestors.first(), clonedParent = clonedAncestor->parentElement();
+             ancestor && ancestor != topBlockquote;
+             ancestor = ancestor->parentElement(), clonedParent = clonedParent->parentElement()) {
+            moveNode = ancestor->nextSibling();
+            while (moveNode) {
+                Node *next = moveNode->nextSibling();
+                removeNode(moveNode);
+                appendNode(moveNode, clonedParent);
+                moveNode = next;
+            }
+        }
+    }
+    
+    // Make sure the cloned block quote renders.
+    addBlockPlaceholderIfNeeded(clonedBlockquote.get());
+    
+    // Put the selection right before the break.
+    setEndingSelection(Selection(Position(breakNode.get(), 0), DOWNSTREAM));
+    rebalanceWhitespace();
+}
+
+} // namespace WebCore