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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/renderer/renderer_webidbcursor_impl.h"
#include "chrome/common/indexed_db_messages.h"
#include "chrome/renderer/indexed_db_dispatcher.h"
#include "chrome/renderer/render_thread.h"
using WebKit::WebExceptionCode;
using WebKit::WebIDBCallbacks;
using WebKit::WebIDBKey;
using WebKit::WebSerializedScriptValue;
RendererWebIDBCursorImpl::RendererWebIDBCursorImpl(int32 idb_cursor_id)
: idb_cursor_id_(idb_cursor_id) {
}
RendererWebIDBCursorImpl::~RendererWebIDBCursorImpl() {
// It's not possible for there to be pending callbacks that address this
// object since inside WebKit, they hold a reference to the object wich owns
// this object. But, if that ever changed, then we'd need to invalidate
// any such pointers.
RenderThread::current()->Send(new IndexedDBHostMsg_CursorDestroyed(
idb_cursor_id_));
}
unsigned short RendererWebIDBCursorImpl::direction() const {
int direction;
RenderThread::current()->Send(
new IndexedDBHostMsg_CursorDirection(idb_cursor_id_, &direction));
return direction;
}
WebIDBKey RendererWebIDBCursorImpl::key() const {
IndexedDBKey key;
RenderThread::current()->Send(
new IndexedDBHostMsg_CursorKey(idb_cursor_id_, &key));
return key;
}
WebIDBKey RendererWebIDBCursorImpl::primaryKey() const {
IndexedDBKey primaryKey;
RenderThread::current()->Send(
new IndexedDBHostMsg_CursorPrimaryKey(idb_cursor_id_, &primaryKey));
return primaryKey;
}
void RendererWebIDBCursorImpl::value(
WebSerializedScriptValue& webScriptValue,
WebIDBKey& webKey) const {
SerializedScriptValue scriptValue;
IndexedDBKey key;
RenderThread::current()->Send(
new IndexedDBHostMsg_CursorValue(idb_cursor_id_, &scriptValue,
&key));
// Only one or the other type should have been "returned" to us.
DCHECK(scriptValue.is_null() != (key.type() == WebIDBKey::InvalidType));
webScriptValue = scriptValue;
webKey = key;
}
void RendererWebIDBCursorImpl::update(const WebSerializedScriptValue& value,
WebIDBCallbacks* callbacks,
WebExceptionCode& ec) {
IndexedDBDispatcher* dispatcher =
RenderThread::current()->indexed_db_dispatcher();
dispatcher->RequestIDBCursorUpdate(SerializedScriptValue(value), callbacks,
idb_cursor_id_, &ec);
}
void RendererWebIDBCursorImpl::continueFunction(const WebIDBKey& key,
WebIDBCallbacks* callbacks,
WebExceptionCode& ec) {
IndexedDBDispatcher* dispatcher =
RenderThread::current()->indexed_db_dispatcher();
dispatcher->RequestIDBCursorContinue(IndexedDBKey(key), callbacks,
idb_cursor_id_, &ec);
}
void RendererWebIDBCursorImpl::remove(WebIDBCallbacks* callbacks,
WebExceptionCode& ec) {
IndexedDBDispatcher* dispatcher =
RenderThread::current()->indexed_db_dispatcher();
dispatcher->RequestIDBCursorDelete(callbacks, idb_cursor_id_, &ec);
}
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