summaryrefslogtreecommitdiffstats
path: root/webkit/api
diff options
context:
space:
mode:
Diffstat (limited to 'webkit/api')
-rw-r--r--webkit/api/public/WebBindings.h75
-rw-r--r--webkit/api/src/WebBindings.cpp177
2 files changed, 252 insertions, 0 deletions
diff --git a/webkit/api/public/WebBindings.h b/webkit/api/public/WebBindings.h
new file mode 100644
index 0000000..f6eeb7d
--- /dev/null
+++ b/webkit/api/public/WebBindings.h
@@ -0,0 +1,75 @@
+/*
+ * 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 WebBindings_h
+#define WebBindings_h
+
+#include <bindings/npruntime.h>
+#include "WebCommon.h"
+
+namespace WebKit {
+
+ class WebDragData;
+
+ // A haphazard collection of functions for dealing with plugins.
+ class WebBindings {
+ public:
+ // NPN Functions ------------------------------------------------------
+ // These are all defined in npruntime.h and are well documented.
+
+ // NPN_GetStringIdentifier
+ WEBKIT_API static NPIdentifier getStringIdentifier(const NPUTF8*);
+
+ // NPN_GetIntIdentifier
+ WEBKIT_API static NPIdentifier getIntIdentifier(int32_t);
+
+
+ // Miscellaneous utility functions ------------------------------------
+
+ // Complement to NPN_Get___Identifier functions. Extracts data from the NPIdentifier data
+ // structure. If isString is true upon return, string will be set but number's value is
+ // undefined. If iString is false, the opposite is true.
+ WEBKIT_API static void extractIdentifierData(const NPIdentifier&, const NPUTF8*& string, int32_t& number, bool& isString);
+
+ // Return true (success) if the given npobj is the current drag event in browser dispatch,
+ // and is accessible based on context execution frames and their security origins and
+ // WebKit clipboard access policy. If so, return the event id and the clipboard data (WebDragData).
+ // This only works with V8. If compiled without V8, it'll always return false.
+ WEBKIT_API static bool getDragData(NPObject* event, int* event_id, WebDragData* data);
+
+ // Invoke the event access policy checks listed above with GetDragData(). No need for clipboard
+ // data or event_id outputs, just confirm the given npobj is the current & accessible drag event.
+ // This only works with V8. If compiled without V8, it'll always return false.
+ WEBKIT_API static bool isDragEvent(NPObject* event);
+ };
+
+} // namespace WebKit
+
+#endif
diff --git a/webkit/api/src/WebBindings.cpp b/webkit/api/src/WebBindings.cpp
new file mode 100644
index 0000000..d6ee73d
--- /dev/null
+++ b/webkit/api/src/WebBindings.cpp
@@ -0,0 +1,177 @@
+/*
+ * 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 "WebBindings.h"
+
+#include "npruntime_priv.h"
+#include "webkit/api/public/WebDragData.h"
+
+#if USE(V8_BINDING)
+#include "ChromiumDataObject.h"
+#include "ClipboardChromium.h"
+#include "EventNames.h"
+#include "MouseEvent.h"
+#include "NPV8Object.h" // for PrivateIdentifier
+#include "V8Helpers.h"
+#include "V8Proxy.h"
+#elif USE(JAVASCRIPTCORE_BINDINGS)
+#include "bridge/c/c_utility.h"
+#endif
+
+#if USE(JAVASCRIPTCORE_BINDINGS)
+using JSC::Bindings::PrivateIdentifier;
+#endif
+
+using namespace WebCore;
+
+namespace WebKit {
+
+void WebBindings::extractIdentifierData(const NPIdentifier& identifier, const NPUTF8*& string, int32_t& number, bool& isString)
+{
+ PrivateIdentifier* priv = static_cast<PrivateIdentifier*>(identifier);
+ if (!priv) {
+ isString = false;
+ number = 0;
+ return;
+ }
+
+ isString = priv->isString;
+ if (isString)
+ string = priv->value.string;
+ else
+ number = priv->value.number;
+}
+
+NPIdentifier WebBindings::getStringIdentifier(const NPUTF8* string)
+{
+ return NPN_GetStringIdentifier(string);
+}
+
+NPIdentifier WebBindings::getIntIdentifier(int32_t number)
+{
+ return NPN_GetIntIdentifier(number);
+}
+
+#if USE(V8)
+
+static v8::Local<v8::Value> getEvent(const v8::Handle<v8::Context>& context)
+{
+ static v8::Persistent<v8::String> event(v8::Persistent<v8::String>::New(v8::String::NewSymbol("event")));
+ return context->Global()->GetHiddenValue(event);
+}
+
+static bool getDragDataImpl(NPObject* npobj, int* eventId, WebDragData* data)
+{
+ if (npobj == NULL)
+ return false;
+ if (npobj->_class != npScriptObjectClass)
+ return false;
+
+ v8::HandleScope handleScope;
+ v8::Handle<v8::Context> context = v8::Context::GetEntered();
+ if (context.IsEmpty())
+ return false;
+
+ // Get the current WebCore event.
+ v8::Handle<v8::Value> currentEvent(getEvent(context));
+ Event* event = V8DOMWrapper::convertToNativeEvent(currentEvent);
+ if (event == NULL)
+ return false;
+
+ // Check that the given npobj is that event.
+ V8NPObject* object = reinterpret_cast<V8NPObject*>(npobj);
+ Event* given = V8DOMWrapper::convertToNativeEvent(object->v8Object);
+ if (given != event)
+ return false;
+
+ // Check the execution frames are same origin.
+ V8Proxy* current = V8Proxy::retrieve(V8Proxy::retrieveFrame());
+ Frame* frame = V8Proxy::retrieveFrame(context);
+ if (!current || !current->canAccessFrame(frame, false))
+ return false;
+
+ const EventNames& names(eventNames());
+ const AtomicString& eventType(event->type());
+
+ enum DragTargetMouseEventId {
+ DragEnterId = 1, DragOverId = 2, DragLeaveId = 3, DropId = 4
+ };
+
+ // The event type should be a drag event.
+ if (eventType == names.dragenterEvent)
+ *eventId = DragEnterId;
+ else if (eventType == names.dragoverEvent)
+ *eventId = DragOverId;
+ else if (eventType == names.dragleaveEvent)
+ *eventId = DragLeaveId;
+ else if (eventType == names.dropEvent)
+ *eventId = DropId;
+ else
+ return false;
+
+ // Drag events are mouse events and should have a clipboard.
+ MouseEvent* me = reinterpret_cast<MouseEvent*>(event);
+ Clipboard* clipboard = me->clipboard();
+ if (!clipboard)
+ return false;
+
+ // And that clipboard should be accessible by WebKit policy.
+ ClipboardChromium* chrome = reinterpret_cast<ClipboardChromium*>(clipboard);
+ HashSet<String> accessible(chrome->types());
+ if (accessible.isEmpty())
+ return false;
+
+ RefPtr<ChromiumDataObject> dataObject(chrome->dataObject());
+ if (dataObject && data)
+ *data = WebDragData(dataObject);
+
+ return dataObject != NULL;
+}
+
+#endif
+
+bool WebBindings::getDragData(NPObject* event, int* eventId, WebDragData* data)
+{
+#if USE(V8)
+ return getDragDataImpl(event, eventId, data);
+#else
+ // Not supported on other ports (JSC, etc).
+ return false;
+#endif
+}
+
+bool WebBindings::isDragEvent(NPObject* event)
+{
+ int eventId;
+ return getDragData(event, &eventId, NULL);
+}
+
+} // namespace WebKit
generated by cgit v1.1 at 2025-01-15 13:54:57 +0000