1 /*

     2  * Copyright (C) 2009 Google Inc. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions are

     6  * met:

     7  *

     8  *     * Redistributions of source code must retain the above copyright

     9  * notice, this list of conditions and the following disclaimer.

    10  *     * Redistributions in binary form must reproduce the above

    11  * copyright notice, this list of conditions and the following disclaimer

    12  * in the documentation and/or other materials provided with the

    13  * distribution.

    14  *     * Neither the name of Google Inc. nor the names of its

    15  * contributors may be used to endorse or promote products derived from

    16  * this software without specific prior written permission.

    17  *

    18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

    22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    29  */

    30 

    31 #ifndef WebScriptController_h

    32 #define WebScriptController_h

    33 

    34 #include "WebCommon.h"

    35 

    36 namespace v8 {

    37 class Extension;

    38 }

    39 

    40 namespace WebKit {

    41 

    42 class WebString;

    43 

    44 class WebScriptController {

    45 public:

    46     // Registers a v8 extension to be available on webpages. The three forms

    47     // offer various restrictions on what types of contexts the extension is

    48     // loaded into. If a scheme is provided, only pages whose URL has the given

    49     // scheme will match. If extensionGroup is provided, the extension will only

    50     // be loaded into scripts run via WebFrame::ExecuteInNewWorld with the

    51     // matching group.

    52     // Will only affect v8 contexts initialized after this call. Takes ownership

    53     // of the v8::Extension object passed.

    54     WEBKIT_API static void registerExtension(v8::Extension*);

    55     WEBKIT_API static void registerExtension(v8::Extension*,

    56                                              const WebString& schemeRestriction);

    57     WEBKIT_API static void registerExtension(v8::Extension*, int extensionGroup);

    58 

    59     // Enables special settings which are only applicable if V8 is executed

    60     // in the single thread which must be the main thread.

    61     // FIXME: make a try to dynamically detect when this condition is broken

    62     // and automatically switch off single thread mode.

    63     WEBKIT_API static void enableV8SingleThreadMode();

    64 

    65     // Process any pending JavaScript console messages.

    66     WEBKIT_API static void flushConsoleMessages();

    67 

    68 private:

    69     WebScriptController();

    70 };

    71 

    72 } // namespace WebKit

    73 

    74 #endif