Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 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 ExceptionState_h |
| 32 | #define ExceptionState_h |
| 33 | |
| 34 | #include "bindings/v8/ScopedPersistent.h" |
| 35 | #include "bindings/v8/V8ThrowException.h" |
| 36 | #include "wtf/Noncopyable.h" |
Ben Murdoch | 7757ec2 | 2013-07-23 11:17:36 +0100 | [diff] [blame] | 37 | #include "wtf/text/WTFString.h" |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 38 | #include <v8.h> |
| 39 | |
| 40 | namespace WebCore { |
| 41 | |
| 42 | typedef int ExceptionCode; |
| 43 | |
| 44 | class ExceptionState { |
| 45 | WTF_MAKE_NONCOPYABLE(ExceptionState); |
| 46 | public: |
| 47 | explicit ExceptionState(v8::Isolate* isolate) |
| 48 | : m_code(0) |
| 49 | , m_isolate(isolate) { } |
| 50 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame] | 51 | virtual void throwDOMException(const ExceptionCode&, const String& message); |
Torne (Richard Coles) | f79f16f | 2013-10-31 11:16:44 +0000 | [diff] [blame] | 52 | virtual void throwTypeError(const String& message); |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 53 | virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()); |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 54 | |
Torne (Richard Coles) | f79f16f | 2013-10-31 11:16:44 +0000 | [diff] [blame] | 55 | // Please don't use these methods. Use ::throwDOMException and ::throwTypeError, and pass in a useful exception message. |
| 56 | virtual void throwUninformativeAndGenericDOMException(const ExceptionCode& ec) { throwDOMException(ec, String()); } |
| 57 | virtual void throwUninformativeAndGenericTypeError() { throwTypeError(String()); } |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame] | 58 | |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 59 | bool hadException() const { return !m_exception.isEmpty() || m_code; } |
| 60 | void clearException(); |
| 61 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 62 | ExceptionCode code() { return m_code; } |
| 63 | |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 64 | bool throwIfNeeded() |
| 65 | { |
| 66 | if (m_exception.isEmpty()) { |
| 67 | if (!m_code) |
| 68 | return false; |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame] | 69 | throwUninformativeAndGenericDOMException(m_code); |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 70 | } |
| 71 | |
Torne (Richard Coles) | 9bbd2f5 | 2013-09-19 22:37:05 +0100 | [diff] [blame] | 72 | V8ThrowException::throwError(m_exception.newLocal(m_isolate), m_isolate); |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 73 | return true; |
| 74 | } |
| 75 | |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 76 | protected: |
| 77 | ExceptionCode m_code; |
| 78 | |
| 79 | private: |
| 80 | void setException(v8::Handle<v8::Value>); |
| 81 | |
| 82 | ScopedPersistent<v8::Value> m_exception; |
| 83 | v8::Isolate* m_isolate; |
| 84 | }; |
| 85 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 86 | class TrackExceptionState : public ExceptionState { |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 87 | public: |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 88 | TrackExceptionState(): ExceptionState(0) { } |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame] | 89 | virtual void throwDOMException(const ExceptionCode&, const String& message) OVERRIDE FINAL; |
Ben Murdoch | 7757ec2 | 2013-07-23 11:17:36 +0100 | [diff] [blame] | 90 | virtual void throwTypeError(const String& message = String()) OVERRIDE FINAL; |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 91 | virtual void throwSecurityError(const String& sanitizedMessage, const String& unsanitizedMessage = String()) OVERRIDE FINAL; |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 92 | }; |
| 93 | |
| 94 | } // namespace WebCore |
| 95 | |
| 96 | #endif // ExceptionState_h |