1 files changed, 77 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/storage/StorageEventDispatcher.cpp b/src/3rdparty/webkit/WebCore/storage/StorageEventDispatcher.cpp
new file mode 100644
index 0000000000..9763e076cd
--- /dev/null
+++ b/src/3rdparty/webkit/WebCore/storage/StorageEventDispatcher.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2008 Apple 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 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 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 "StorageEventDispatcher.h"
+
+#if ENABLE(DOM_STORAGE)
+
+#include "DOMWindow.h"
+#include "EventNames.h"
+#include "Frame.h"
+#include "Page.h"
+#include "PageGroup.h"
+#include "SecurityOrigin.h"
+#include "StorageEvent.h"
+
+namespace WebCore {
+
+void StorageEventDispatcher::dispatch(const String& key, const String& oldValue, const String& newValue, StorageType storageType, SecurityOrigin* securityOrigin, Frame* sourceFrame)
+{
+    Page* page = sourceFrame->page();
+    if (!page)
+        return;
+
+    // We need to copy all relevant frames from every page to a vector since sending the event to one frame might mutate the frame tree
+    // of any given page in the group or mutate the page group itself.
+    Vector<RefPtr<Frame> > frames;
+    if (storageType == SessionStorage) {
+        // Send events only to our page.
+        for (Frame* frame = page->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+            if (frame->document()->securityOrigin()->equal(securityOrigin))
+                frames.append(frame);
+        }
+
+        for (unsigned i = 0; i < frames.size(); ++i)
+            frames[i]->document()->dispatchWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), frames[i]->domWindow()->sessionStorage()));
+    } else {
+        // Send events to every page.
+        const HashSet<Page*>& pages = page->group().pages();
+        HashSet<Page*>::const_iterator end = pages.end();
+        for (HashSet<Page*>::const_iterator it = pages.begin(); it != end; ++it) {
+            for (Frame* frame = (*it)->mainFrame(); frame; frame = frame->tree()->traverseNext()) {
+                if (frame->document()->securityOrigin()->equal(securityOrigin))
+                    frames.append(frame);
+            }
+        }
+
+        for (unsigned i = 0; i < frames.size(); ++i)
+            frames[i]->document()->dispatchWindowEvent(StorageEvent::create(eventNames().storageEvent, key, oldValue, newValue, sourceFrame->document()->url(), frames[i]->domWindow()->localStorage()));
+    }
+}
+
+}
+
+#endif // ENABLE(DOM_STORAGE)