Another stab at the Chromium side of storage events. The WebKit side can be found here: https://bugs.webkit.org/show_bug.cgi?id=29655

TEST=Manually inspected that storage events fired.  Will turn on more layout tests in a subsequent patch.
BUG=19972

Review URL: http://codereview.chromium.org/223013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@27756 0039d316-1c4b-4281-b951-d872f2087c98

7 files changed, 327 insertions, 3 deletions

diff --git a/webkit/api/public/WebKitClient.h b/webkit/api/public/WebKitClient.h
index b95dc1f..b695bba 100644
--- a/webkit/api/public/WebKitClient.h
+++ b/webkit/api/public/WebKitClient.h
@@ -85,12 +85,16 @@ namespace WebKit {
 
         // Return a LocalStorage namespace that corresponds to the following
         // path.
-        virtual WebStorageNamespace* createLocalStorageNamespace(
-            const WebString& path) = 0;
+        virtual WebStorageNamespace* createLocalStorageNamespace(const WebString& path) = 0;
 
         // Return a new SessionStorage namespace.
         virtual WebStorageNamespace* createSessionStorageNamespace() = 0;
 
+        // Called when storage events fire.
+        virtual void dispatchStorageEvent(const WebString& key, const WebString& oldValue,
+                                          const WebString& newValue, const WebString& origin,
+                                          bool isLocalStorage) = 0;
+
 
         // File ----------------------------------------------------------------
 
diff --git a/webkit/api/public/WebStorageEventDispatcher.h b/webkit/api/public/WebStorageEventDispatcher.h
new file mode 100644
index 0000000..88d0ea9
--- /dev/null
+++ b/webkit/api/public/WebStorageEventDispatcher.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef WebStorageEventDispatcher_h
+#define WebStorageEventDispatcher_h
+
+#include "WebString.h"
+
+namespace WebKit {
+
+    // This is used to dispatch storage events to all pages.
+    // FIXME: Make this (or something) work for SessionStorage!
+    class WebStorageEventDispatcher {
+    public:
+        static WebStorageEventDispatcher* create();
+
+        virtual ~WebStorageEventDispatcher() { }
+
+        // Dispatch the actual event.  Doesn't yet work for SessionStorage.
+        virtual void dispatchStorageEvent(const WebString& key, const WebString& oldValue,
+                                          const WebString& newValue, const WebString& origin,
+                                          bool isLocalStorage) = 0;
+    };
+
+} // namespace WebKit
+
+#endif // WebStorageEventDispatcher_h
diff --git a/webkit/api/src/StorageEventDispatcherChromium.cpp b/webkit/api/src/StorageEventDispatcherChromium.cpp
index 8f0c61c..9c283cd 100644
--- a/webkit/api/src/StorageEventDispatcherChromium.cpp
+++ b/webkit/api/src/StorageEventDispatcherChromium.cpp
@@ -46,7 +46,8 @@ void StorageEventDispatcher::dispatch(const String& key, const String& oldValue,
                                       const String& newValue, StorageType storageType,
                                       SecurityOrigin* origin, Frame* sourceFrame)
 {
-    // FIXME: Implement.
+    ASSERT(!sourceFrame);  // Sad, but true.
+    WebKit::webKitClient()->dispatchStorageEvent(key, oldValue, newValue, origin->toString(), storageType == LocalStorage);
 }
 
 } // namespace WebCore
diff --git a/webkit/api/src/StorageEventDispatcherImpl.cpp b/webkit/api/src/StorageEventDispatcherImpl.cpp
new file mode 100644
index 0000000..6916e0b
--- /dev/null
+++ b/webkit/api/src/StorageEventDispatcherImpl.cpp
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 "StorageEventDispatcherImpl.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 {
+
+StorageEventDispatcherImpl::StorageEventDispatcherImpl(const String& groupName)
+    : m_pageGroup(PageGroup::pageGroup(groupName))
+{
+    ASSERT(m_pageGroup);
+}
+
+void StorageEventDispatcherImpl::dispatchStorageEvent(const String& key, const String& oldValue,
+                                                      const String& newValue, StorageType storageType,
+                                                      SecurityOrigin* securityOrigin)
+{
+    // FIXME: Implement
+    if (storageType == SessionStorage)
+        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;
+
+    const HashSet<Page*>& pages = m_pageGroup->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);
+        }
+    }
+
+    // FIXME: Figure out how to pass in the document URI.
+    for (unsigned i = 0; i < frames.size(); ++i) {
+        frames[i]->document()->dispatchWindowEvent(StorageEvent::create(eventNames().storageEvent, key,oldValue, newValue,
+                                                                        String(), 0, frames[i]->domWindow()->localStorage()));
+    }
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(DOM_STORAGE)
diff --git a/webkit/api/src/StorageEventDispatcherImpl.h b/webkit/api/src/StorageEventDispatcherImpl.h
new file mode 100644
index 0000000..e0f57e2
--- /dev/null
+++ b/webkit/api/src/StorageEventDispatcherImpl.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef StorageEventDispatcherImpl_h
+#define StorageEventDispatcherImpl_h
+
+#if ENABLE(DOM_STORAGE)
+
+#include "PlatformString.h"
+#include "StorageArea.h"
+
+namespace WebCore {
+
+    class PageGroup;
+    class SecurityOrigin;
+
+    class StorageEventDispatcherImpl {
+    public:
+        StorageEventDispatcherImpl(const String& groupName);
+
+        void dispatchStorageEvent(const String& key, const String& oldValue,
+                                  const String& newValue, StorageType,
+                                  SecurityOrigin*);
+
+    private:
+        PageGroup* m_pageGroup;
+    };
+
+} // namespace WebCore
+
+#endif // ENABLE(DOM_STORAGE)
+
+#endif // StorageEventDispatcherImpl_h
diff --git a/webkit/api/src/WebStorageEventDispatcherImpl.cpp b/webkit/api/src/WebStorageEventDispatcherImpl.cpp
new file mode 100644
index 0000000..a6da503
--- /dev/null
+++ b/webkit/api/src/WebStorageEventDispatcherImpl.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 "WebStorageEventDispatcherImpl.h"
+
+#if ENABLE(DOM_STORAGE)
+
+#include "SecurityOrigin.h"
+
+extern const char* pageGroupName;
+
+namespace WebKit {
+
+WebStorageEventDispatcher* WebStorageEventDispatcher::create()
+{
+    return new WebStorageEventDispatcherImpl();
+}
+
+WebStorageEventDispatcherImpl::WebStorageEventDispatcherImpl()
+    : m_eventDispatcher(new WebCore::StorageEventDispatcherImpl(pageGroupName))
+{
+    ASSERT(m_eventDispatcher);
+}
+
+void WebStorageEventDispatcherImpl::dispatchStorageEvent(const WebString& key, const WebString& oldValue,
+                                                         const WebString& newValue, const WebString& origin,
+                                                         bool isLocalStorage)
+{
+    WebCore::StorageType storageType = isLocalStorage ? WebCore::LocalStorage : WebCore::SessionStorage;
+    RefPtr<WebCore::SecurityOrigin> securityOrigin = WebCore::SecurityOrigin::createFromString(origin);
+    m_eventDispatcher->dispatchStorageEvent(key, oldValue, newValue, storageType, securityOrigin.get());
+}
+
+} // namespace WebKit
+
+#endif // ENABLE(DOM_STORAGE)
diff --git a/webkit/api/src/WebStorageEventDispatcherImpl.h b/webkit/api/src/WebStorageEventDispatcherImpl.h
new file mode 100644
index 0000000..464c4f3
--- /dev/null
+++ b/webkit/api/src/WebStorageEventDispatcherImpl.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#ifndef WebStorageEventDispatcherImpl_h
+#define WebStorageEventDispatcherImpl_h
+
+#if ENABLE(DOM_STORAGE)
+
+#include "StorageEventDispatcherImpl.h"
+#include <wtf/OwnPtr.h>
+
+#include "WebStorageEventDispatcher.h"
+
+namespace WebKit {
+
+    class WebStorageEventDispatcherImpl : public WebStorageEventDispatcher {
+    public:
+        WebStorageEventDispatcherImpl();
+
+        virtual void dispatchStorageEvent(const WebString& key, const WebString& oldValue,
+                                          const WebString& newValue, const WebString& origin,
+                                          bool isLocalStorage);
+
+    private:
+        OwnPtr<WebCore::StorageEventDispatcherImpl> m_eventDispatcher;
+    };
+
+} // namespace WebKit
+
+#endif // ENABLE(DOM_STORAGE)
+
+#endif // WebStorageEventDispatcherImpl_h