1 files changed, 126 insertions, 0 deletions
diff --git a/WebCore/rendering/RenderButton.cpp b/WebCore/rendering/RenderButton.cpp
new file mode 100644
index 0000000..6a15fdb
--- /dev/null
+++ b/WebCore/rendering/RenderButton.cpp
@@ -0,0 +1,126 @@
+/**
+ * This file is part of the html renderer for KDE.
+ *
+ * Copyright (C) 2005 Apple Computer, Inc.
+ *
+ * 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"
+#include "RenderButton.h"
+
+#include "Document.h"
+#include "GraphicsContext.h"
+#include "HTMLInputElement.h"
+#include "HTMLNames.h"
+#include "RenderTextFragment.h"
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+RenderButton::RenderButton(Node* node)
+    : RenderFlexibleBox(node)
+    , m_buttonText(0)
+    , m_inner(0)
+{
+}
+
+void RenderButton::addChild(RenderObject* newChild, RenderObject* beforeChild)
+{
+    if (!m_inner) {
+        // Create an anonymous block.
+        ASSERT(!firstChild());
+        m_inner = createAnonymousBlock();
+        m_inner->style()->setBoxFlex(1.0f);
+        RenderFlexibleBox::addChild(m_inner);
+    }
+    
+    m_inner->addChild(newChild, beforeChild);
+}
+
+void RenderButton::removeChild(RenderObject* oldChild)
+{
+    if (oldChild == m_inner || !m_inner) {
+        RenderFlexibleBox::removeChild(oldChild);
+        m_inner = 0;
+    } else
+        m_inner->removeChild(oldChild);
+}
+
+void RenderButton::setStyle(RenderStyle* style)
+{
+    RenderBlock::setStyle(style);
+    if (m_buttonText)
+        m_buttonText->setStyle(style);
+    if (m_inner) // RenderBlock handled updating the anonymous block's style.
+        m_inner->style()->setBoxFlex(1.0f);
+    setReplaced(isInline());
+}
+
+void RenderButton::updateFromElement()
+{
+    // If we're an input element, we may need to change our button text.
+    if (element()->hasTagName(inputTag)) {
+        HTMLInputElement* input = static_cast<HTMLInputElement*>(element());
+        String value = input->valueWithDefault();
+        setText(value);
+    }
+}
+
+bool RenderButton::canHaveChildren() const
+{
+    // Input elements can't have children, but button elements can.  We'll
+    // write the code assuming any other button types that might emerge in the future
+    // can also have children.
+    return !element()->hasTagName(inputTag);
+}
+
+void RenderButton::setText(const String& str)
+{
+    if (str.isEmpty()) {
+        if (m_buttonText) {
+            m_buttonText->destroy();
+            m_buttonText = 0;
+        }
+    } else {
+        if (m_buttonText)
+            m_buttonText->setText(str.impl());
+        else {
+            m_buttonText = new (renderArena()) RenderTextFragment(document(), str.impl());
+            m_buttonText->setStyle(style());
+            addChild(m_buttonText);
+        }
+    }
+}
+
+void RenderButton::updateBeforeAfterContent(RenderStyle::PseudoId type)
+{
+    if (m_inner)
+        m_inner->updateBeforeAfterContentForContainer(type, this);
+    else
+        updateBeforeAfterContentForContainer(type, this);
+}
+
+IntRect RenderButton::controlClipRect(int tx, int ty) const
+{
+    // Clip to the padding box to at least give content the extra padding space.
+    return IntRect(tx + borderLeft(), ty + borderTop(), m_width - borderLeft() - borderRight(), m_height - borderTop() - borderBottom());
+}
+
+
+} // namespace WebCore