1 files changed, 164 insertions, 0 deletions
diff --git a/WebCore/rendering/RenderSVGInlineText.cpp b/WebCore/rendering/RenderSVGInlineText.cpp
new file mode 100644
index 0000000..36eb128
--- /dev/null
+++ b/WebCore/rendering/RenderSVGInlineText.cpp
@@ -0,0 +1,164 @@
+/*
+ * This file is part of the WebKit project.
+ *
+ * Copyright (C) 2006 Oliver Hunt <ojh16@student.canterbury.ac.nz>
+ *           (C) 2006 Apple Computer Inc.
+ *           (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "RenderSVGInlineText.h"
+
+#include "FloatConversion.h"
+#include "RenderBlock.h"
+#include "RenderSVGRoot.h"
+#include "SVGInlineTextBox.h"
+#include "SVGRootInlineBox.h"
+
+namespace WebCore {
+
+static inline bool isChildOfHiddenContainer(RenderObject* start)
+{
+    while (start) {
+        if (start->isSVGHiddenContainer())
+            return true;
+
+        start = start->parent();
+    }
+
+    return false;
+}
+
+RenderSVGInlineText::RenderSVGInlineText(Node* n, PassRefPtr<StringImpl> str) 
+    : RenderText(n, str)
+{
+}
+
+void RenderSVGInlineText::absoluteRects(Vector<IntRect>& rects, int, int, bool)
+{
+    rects.append(computeAbsoluteRectForRange(0, textLength()));
+}
+
+IntRect RenderSVGInlineText::selectionRect(bool)
+{
+    ASSERT(!needsLayout());
+
+    IntRect rect;
+    if (selectionState() == SelectionNone)
+        return rect;
+
+    // Early exit if we're ie. a <text> within a <defs> section.
+    if (isChildOfHiddenContainer(this))
+        return rect;
+
+    // Now calculate startPos and endPos for painting selection.
+    // We include a selection while endPos > 0
+    int startPos, endPos;
+    if (selectionState() == SelectionInside) {
+        // We are fully selected.
+        startPos = 0;
+        endPos = textLength();
+    } else {
+        selectionStartEnd(startPos, endPos);
+        if (selectionState() == SelectionStart)
+            endPos = textLength();
+        else if (selectionState() == SelectionEnd)
+            startPos = 0;
+    }
+
+    if (startPos == endPos)
+        return rect;
+
+    return computeAbsoluteRectForRange(startPos, endPos);
+}
+
+IntRect RenderSVGInlineText::computeAbsoluteRectForRange(int startPos, int endPos)
+{
+    IntRect rect;
+
+    RenderBlock* cb = containingBlock();
+    if (!cb || !cb->container())
+        return rect;
+
+    RenderSVGRoot* root = findSVGRootObject(parent());
+    if (!root)
+        return rect;
+
+    for (InlineTextBox* box = firstTextBox(); box; box = box->nextTextBox())
+        rect.unite(box->selectionRect(0, 0, startPos, endPos));
+
+    // Mimic RenderBox::computeAbsoluteRepaintRect() functionality. But only the subset needed for SVG and respecting SVG transformations.
+    int x, y;
+    cb->container()->absolutePosition(x, y);
+
+    // Remove HTML parent translation offsets here! These need to be retrieved from the RenderSVGRoot object.
+    // But do take the containingBlocks's container position into account, ie. SVG text in scrollable <div>.
+    AffineTransform htmlParentCtm = root->RenderContainer::absoluteTransform();
+
+    FloatRect fixedRect(narrowPrecisionToFloat(rect.x() + x - xPos() - htmlParentCtm.e()), narrowPrecisionToFloat(rect.y() + y - yPos() - htmlParentCtm.f()), rect.width(), rect.height());
+    return enclosingIntRect(absoluteTransform().mapRect(fixedRect));
+}
+
+InlineTextBox* RenderSVGInlineText::createInlineTextBox()
+{
+    return new (renderArena()) SVGInlineTextBox(this);
+}
+
+IntRect RenderSVGInlineText::caretRect(int offset, EAffinity affinity, int* extraWidthToEndOfLine)
+{
+    // SVG doesn't have any editable content where a caret rect would be needed
+    return IntRect();
+}
+
+VisiblePosition RenderSVGInlineText::positionForCoordinates(int x, int y)
+{
+    SVGInlineTextBox* textBox = static_cast<SVGInlineTextBox*>(firstTextBox());
+
+    if (!textBox || textLength() == 0)
+        return VisiblePosition(element(), 0, DOWNSTREAM);
+
+    SVGRootInlineBox* rootBox = textBox->svgRootInlineBox();
+    RenderObject* object = rootBox ? rootBox->object() : 0;
+
+    if (!object)
+        return VisiblePosition(element(), 0, DOWNSTREAM);
+
+    int offset = 0;
+
+    for (SVGInlineTextBox* box = textBox; box; box = static_cast<SVGInlineTextBox*>(box->nextTextBox())) {
+        if (box->svgCharacterHitsPosition(x + object->xPos(), y + object->yPos(), offset)) {
+            // If we're not at the end/start of the box, stop looking for other selected boxes.
+            if (!box->m_reversed) {
+                if (offset <= (int) box->end() + 1)
+                    break;
+            } else {
+                if (offset > (int) box->start())
+                    break;
+            }
+        }
+    }
+
+    return VisiblePosition(element(), offset, DOWNSTREAM);
+}
+
+}
+
+#endif // ENABLE(SVG)