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| 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "chrome/renderer/renderer_webidbcursor_impl.h" | |
| 6 | |
| 7 #include "chrome/renderer/render_thread.h" | |
| 8 #include "content/common/indexed_db_messages.h" | |
| 9 #include "content/renderer/indexed_db_dispatcher.h" | |
| 10 | |
| 11 using WebKit::WebExceptionCode; | |
| 12 using WebKit::WebIDBCallbacks; | |
| 13 using WebKit::WebIDBKey; | |
| 14 using WebKit::WebSerializedScriptValue; | |
| 15 | |
| 16 RendererWebIDBCursorImpl::RendererWebIDBCursorImpl(int32 idb_cursor_id) | |
| 17 : idb_cursor_id_(idb_cursor_id) { | |
| 18 } | |
| 19 | |
| 20 RendererWebIDBCursorImpl::~RendererWebIDBCursorImpl() { | |
| 21 // It's not possible for there to be pending callbacks that address this | |
| 22 // object since inside WebKit, they hold a reference to the object wich owns | |
| 23 // this object. But, if that ever changed, then we'd need to invalidate | |
| 24 // any such pointers. | |
| 25 RenderThread::current()->Send(new IndexedDBHostMsg_CursorDestroyed( | |
| 26 idb_cursor_id_)); | |
| 27 } | |
| 28 | |
| 29 unsigned short RendererWebIDBCursorImpl::direction() const { | |
| 30 int direction; | |
| 31 RenderThread::current()->Send( | |
| 32 new IndexedDBHostMsg_CursorDirection(idb_cursor_id_, &direction)); | |
| 33 return direction; | |
| 34 } | |
| 35 | |
| 36 WebIDBKey RendererWebIDBCursorImpl::key() const { | |
| 37 IndexedDBKey key; | |
| 38 RenderThread::current()->Send( | |
| 39 new IndexedDBHostMsg_CursorKey(idb_cursor_id_, &key)); | |
| 40 return key; | |
| 41 } | |
| 42 | |
| 43 WebIDBKey RendererWebIDBCursorImpl::primaryKey() const { | |
| 44 IndexedDBKey primaryKey; | |
| 45 RenderThread::current()->Send( | |
| 46 new IndexedDBHostMsg_CursorPrimaryKey(idb_cursor_id_, &primaryKey)); | |
| 47 return primaryKey; | |
| 48 } | |
| 49 | |
| 50 void RendererWebIDBCursorImpl::value( | |
| 51 WebSerializedScriptValue& webScriptValue, | |
| 52 WebIDBKey& webKey) const { | |
| 53 SerializedScriptValue scriptValue; | |
| 54 IndexedDBKey key; | |
| 55 RenderThread::current()->Send( | |
| 56 new IndexedDBHostMsg_CursorValue(idb_cursor_id_, &scriptValue, | |
| 57 &key)); | |
| 58 // Only one or the other type should have been "returned" to us. | |
| 59 DCHECK(scriptValue.is_null() != (key.type() == WebIDBKey::InvalidType)); | |
| 60 webScriptValue = scriptValue; | |
| 61 webKey = key; | |
| 62 } | |
| 63 | |
| 64 void RendererWebIDBCursorImpl::update(const WebSerializedScriptValue& value, | |
| 65 WebIDBCallbacks* callbacks, | |
| 66 WebExceptionCode& ec) { | |
| 67 IndexedDBDispatcher* dispatcher = | |
| 68 RenderThread::current()->indexed_db_dispatcher(); | |
| 69 dispatcher->RequestIDBCursorUpdate(SerializedScriptValue(value), callbacks, | |
| 70 idb_cursor_id_, &ec); | |
| 71 } | |
| 72 | |
| 73 void RendererWebIDBCursorImpl::continueFunction(const WebIDBKey& key, | |
| 74 WebIDBCallbacks* callbacks, | |
| 75 WebExceptionCode& ec) { | |
| 76 IndexedDBDispatcher* dispatcher = | |
| 77 RenderThread::current()->indexed_db_dispatcher(); | |
| 78 dispatcher->RequestIDBCursorContinue(IndexedDBKey(key), callbacks, | |
| 79 idb_cursor_id_, &ec); | |
| 80 } | |
| 81 | |
| 82 void RendererWebIDBCursorImpl::remove(WebIDBCallbacks* callbacks, | |
| 83 WebExceptionCode& ec) { | |
| 84 IndexedDBDispatcher* dispatcher = | |
| 85 RenderThread::current()->indexed_db_dispatcher(); | |
| 86 dispatcher->RequestIDBCursorDelete(callbacks, idb_cursor_id_, &ec); | |
| 87 } | |
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