1 /* 2 * Copyright (C) 2012 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 */ 25 26 #ifndef ValidationMessageClient_h 27 #define ValidationMessageClient_h 28 29 #include "platform/heap/Handle.h" 30 #include "platform/text/TextDirection.h" 31 #include "wtf/Forward.h" 32 33 namespace blink { 34 35 class Document; 36 class Element; 37 38 class ValidationMessageClient : public WillBeGarbageCollectedMixin { 39 public: 40 virtual ~ValidationMessageClient() { } 41 42 // Show validation message for the specified anchor element. An 43 // implementation of this function may hide the message automatically after 44 // some period. 45 virtual void showValidationMessage(const Element& anchor, const String& mainMessage, TextDirection, const String& subMessage, TextDirection) = 0; 46 47 // Hide validation message for the specified anchor if the message for the 48 // anchor is already visible. 49 virtual void hideValidationMessage(const Element& anchor) = 0; 50 51 // Returns true if the validation message for the specified anchor element 52 // is visible. 53 virtual bool isValidationMessageVisible(const Element& anchor) = 0; 54 55 virtual void documentDetached(const Document&) = 0; 56 57 virtual void willBeDestroyed() = 0; 58 59 virtual void trace(Visitor*) { } 60 }; 61 62 } 63 64 #endif 65
