| /* |
| * 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 WebString_h |
| #define WebString_h |
| |
| #include "WebCommon.h" |
| #include "WebPrivatePtr.h" |
| #include <string> |
| |
| #if INSIDE_BLINK |
| #include "wtf/Forward.h" |
| #else |
| #include <base/strings/latin1_string_conversions.h> |
| #include <base/strings/nullable_string16.h> |
| #include <base/strings/string16.h> |
| #endif |
| |
| namespace WTF { |
| class StringImpl; |
| } |
| |
| namespace blink { |
| |
| // A UTF-16 string container. It is inexpensive to copy a WebString |
| // object. |
| // |
| // WARNING: It is not safe to pass a WebString across threads!!! |
| // |
| class WebString { |
| public: |
| ~WebString() { reset(); } |
| |
| WebString() { } |
| |
| WebString(const WebUChar* data, size_t len) |
| { |
| assign(data, len); |
| } |
| |
| WebString(const WebString& s) { assign(s); } |
| |
| WebString& operator=(const WebString& s) |
| { |
| assign(s); |
| return *this; |
| } |
| |
| BLINK_COMMON_EXPORT void reset(); |
| BLINK_COMMON_EXPORT void assign(const WebString&); |
| BLINK_COMMON_EXPORT void assign(const WebUChar* data, size_t len); |
| |
| BLINK_COMMON_EXPORT bool equals(const WebString&) const; |
| |
| BLINK_COMMON_EXPORT size_t length() const; |
| |
| // Caller must check bounds. |
| BLINK_COMMON_EXPORT WebUChar at(unsigned) const; |
| |
| bool isEmpty() const { return !length(); } |
| bool isNull() const { return m_private.isNull(); } |
| |
| BLINK_COMMON_EXPORT std::string utf8() const; |
| |
| BLINK_COMMON_EXPORT static WebString fromUTF8(const char* data, size_t length); |
| BLINK_COMMON_EXPORT static WebString fromUTF8(const char* data); |
| |
| static WebString fromUTF8(const std::string& s) |
| { |
| return fromUTF8(s.data(), s.length()); |
| } |
| |
| BLINK_COMMON_EXPORT std::string latin1() const; |
| |
| BLINK_COMMON_EXPORT static WebString fromLatin1(const WebLChar* data, size_t length); |
| |
| static WebString fromLatin1(const std::string& s) |
| { |
| return fromLatin1(reinterpret_cast<const WebLChar*>(s.data()), s.length()); |
| } |
| |
| template <int N> WebString(const char (&data)[N]) |
| { |
| assign(fromUTF8(data, N - 1)); |
| } |
| |
| template <int N> WebString& operator=(const char (&data)[N]) |
| { |
| assign(fromUTF8(data, N - 1)); |
| return *this; |
| } |
| |
| #if INSIDE_BLINK |
| BLINK_COMMON_EXPORT WebString(const WTF::String&); |
| BLINK_COMMON_EXPORT WebString& operator=(const WTF::String&); |
| BLINK_COMMON_EXPORT operator WTF::String() const; |
| |
| BLINK_COMMON_EXPORT WebString(const WTF::AtomicString&); |
| BLINK_COMMON_EXPORT WebString& operator=(const WTF::AtomicString&); |
| BLINK_COMMON_EXPORT operator WTF::AtomicString() const; |
| #else |
| WebString(const base::string16& s) |
| { |
| assign(s.data(), s.length()); |
| } |
| |
| WebString& operator=(const base::string16& s) |
| { |
| assign(s.data(), s.length()); |
| return *this; |
| } |
| |
| operator base::string16() const |
| { |
| return base::Latin1OrUTF16ToUTF16(length(), data8(), data16()); |
| } |
| |
| WebString(const base::NullableString16& s) |
| { |
| if (s.is_null()) |
| reset(); |
| else |
| assign(s.string().data(), s.string().length()); |
| } |
| |
| WebString& operator=(const base::NullableString16& s) |
| { |
| if (s.is_null()) |
| reset(); |
| else |
| assign(s.string().data(), s.string().length()); |
| return *this; |
| } |
| |
| operator base::NullableString16() const |
| { |
| return base::NullableString16(operator base::string16(), m_private.isNull()); |
| } |
| #endif |
| |
| private: |
| BLINK_COMMON_EXPORT bool is8Bit() const; |
| BLINK_COMMON_EXPORT const WebLChar* data8() const; |
| BLINK_COMMON_EXPORT const WebUChar* data16() const; |
| |
| BLINK_COMMON_EXPORT void assign(WTF::StringImpl*); |
| |
| WebPrivatePtr<WTF::StringImpl> m_private; |
| }; |
| |
| inline bool operator==(const WebString& a, const WebString& b) |
| { |
| return a.equals(b); |
| } |
| |
| inline bool operator!=(const WebString& a, const WebString& b) |
| { |
| return !(a == b); |
| } |
| |
| } // namespace blink |
| |
| #endif |