1 files changed, 129 insertions, 0 deletions
diff --git a/WebCore/css/CSSImportRule.cpp b/WebCore/css/CSSImportRule.cpp
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+++ b/WebCore/css/CSSImportRule.cpp
@@ -0,0 +1,129 @@
+/**
+ * This file is part of the DOM implementation for KDE.
+ *
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
+ * Copyright (C) 2002, 2005, 2006 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 "CSSImportRule.h"
+
+#include "CachedCSSStyleSheet.h"
+#include "CSSStyleSheet.h"
+#include "DocLoader.h"
+#include "Document.h"
+#include "MediaList.h"
+
+namespace WebCore {
+
+CSSImportRule::CSSImportRule(StyleBase* parent, const String& href, MediaList* media)
+    : CSSRule(parent)
+    , m_strHref(href)
+    , m_lstMedia(media)
+    , m_cachedSheet(0)
+    , m_loading(false)
+{
+    if (m_lstMedia)
+        m_lstMedia->setParent(this);
+    else
+        m_lstMedia = new MediaList(this, String());
+}
+
+CSSImportRule::~CSSImportRule()
+{
+    if (m_lstMedia)
+        m_lstMedia->setParent(0);
+    if (m_styleSheet)
+        m_styleSheet->setParent(0);
+    if (m_cachedSheet)
+        m_cachedSheet->deref(this);
+}
+
+void CSSImportRule::setCSSStyleSheet(const String& url, const String& charset, const CachedCSSStyleSheet* sheet)
+{
+    if (m_styleSheet)
+        m_styleSheet->setParent(0);
+    m_styleSheet = new CSSStyleSheet(this, url, charset);
+
+    CSSStyleSheet* parent = parentStyleSheet();
+    bool strict = !parent || parent->useStrictParsing();
+    m_styleSheet->parseString(sheet->sheetText(strict), strict);
+    m_loading = false;
+
+    checkLoaded();
+}
+
+bool CSSImportRule::isLoading() const
+{
+    return m_loading || (m_styleSheet && m_styleSheet->isLoading());
+}
+
+void CSSImportRule::insertedIntoParent()
+{
+    StyleBase* root = this;
+    StyleBase* parent;
+    while ((parent = root->parent()))
+        root = parent;
+    if (!root->isCSSStyleSheet())
+        return;
+    DocLoader* docLoader = static_cast<CSSStyleSheet*>(root)->docLoader();
+    if (!docLoader)
+        return;
+
+    String absHref = m_strHref;
+    CSSStyleSheet* parentSheet = parentStyleSheet();
+    if (!parentSheet->href().isNull())
+        // use parent styleheet's URL as the base URL
+        absHref = KURL(KURL(parentSheet->href()), m_strHref).string();
+
+    // Check for a cycle in our import chain.  If we encounter a stylesheet
+    // in our parent chain with the same URL, then just bail.
+    for (parent = static_cast<StyleBase*>(this)->parent(); parent; parent = parent->parent()) {
+        if (absHref == parent->baseURL())
+            return;
+    }
+
+    m_cachedSheet = docLoader->requestCSSStyleSheet(absHref, parentSheet->charset());
+    if (m_cachedSheet) {
+        // if the import rule is issued dynamically, the sheet may be
+        // removed from the pending sheet count, so let the doc know
+        // the sheet being imported is pending.
+        if (parentSheet && parentSheet->loadCompleted() && parentSheet->doc())
+            parentSheet->doc()->addPendingSheet();
+        m_loading = true;
+        m_cachedSheet->ref(this);
+    }
+}
+
+String CSSImportRule::cssText() const
+{
+    String result = "@import url(\"";
+    result += m_strHref;
+    result += "\")";
+
+    if (m_lstMedia) {
+        result += " ";
+        result += m_lstMedia->mediaText();
+    }
+    result += ";";
+
+    return result;
+}
+
+} // namespace WebCore