WebValidationMessageClient.mm   [plain text]

/*
* Copyright (C) 2016 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/

#import "WebValidationMessageClient.h"

#import "WebView.h"
#import "WebViewInternal.h"
#import <WebCore/Element.h>

using namespace WebCore;

WebValidationMessageClient::WebValidationMessageClient(WebView* view)
: m_view(view)
{
}

WebValidationMessageClient::~WebValidationMessageClient()
{
if (m_currentAnchor)
hideValidationMessage(*m_currentAnchor);
}

void WebValidationMessageClient::documentDetached(Document& document)
{
if (!m_currentAnchor)
return;
if (&m_currentAnchor->document() == &document)
hideValidationMessage(*m_currentAnchor);
}

void WebValidationMessageClient::showValidationMessage(const Element& anchor, const String& message)
{
if (m_currentAnchor)
hideValidationMessage(*m_currentAnchor);

m_currentAnchor = &anchor;
m_currentAnchorRect = anchor.clientRect();
[m_view showFormValidationMessage:message withAnchorRect:m_currentAnchorRect];
}

void WebValidationMessageClient::hideValidationMessage(const Element& anchor)
{
if (!isValidationMessageVisible(anchor))
return;

m_currentAnchor = nullptr;
m_currentAnchorRect = { };
[m_view hideFormValidationMessage];
}

void WebValidationMessageClient::hideAnyValidationMessage()
{
if (!m_currentAnchor)
return;

m_currentAnchor = nullptr;
m_currentAnchorRect = { };
[m_view hideFormValidationMessage];
}

bool WebValidationMessageClient::isValidationMessageVisible(const Element& anchor)
{
return m_currentAnchor == &anchor;
}

void WebValidationMessageClient::updateValidationBubbleStateIfNeeded()
{
if (!m_currentAnchor)
return;

// We currently hide the validation bubble if its position is outdated instead of trying
// to update its position.
if (m_currentAnchorRect != m_currentAnchor->clientRect())
hideValidationMessage(*m_currentAnchor);
}