| /* |
| * Copyright (C) 2012 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: |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "web/ValidationMessageClientImpl.h" |
| |
| #include "core/dom/Element.h" |
| #include "core/frame/FrameView.h" |
| #include "core/rendering/RenderObject.h" |
| #include "platform/HostWindow.h" |
| #include "public/platform/WebRect.h" |
| #include "public/platform/WebString.h" |
| #include "public/web/WebTextDirection.h" |
| #include "public/web/WebViewClient.h" |
| #include "web/WebViewImpl.h" |
| #include "wtf/CurrentTime.h" |
| |
| namespace blink { |
| |
| ValidationMessageClientImpl::ValidationMessageClientImpl(WebViewImpl& webView) |
| : m_webView(webView) |
| , m_currentAnchor(nullptr) |
| , m_lastPageScaleFactor(1) |
| , m_finishTime(0) |
| , m_timer(this, &ValidationMessageClientImpl::checkAnchorStatus) |
| { |
| } |
| |
| PassOwnPtrWillBeRawPtr<ValidationMessageClientImpl> ValidationMessageClientImpl::create(WebViewImpl& webView) |
| { |
| return adoptPtrWillBeNoop(new ValidationMessageClientImpl(webView)); |
| } |
| |
| ValidationMessageClientImpl::~ValidationMessageClientImpl() |
| { |
| } |
| |
| FrameView* ValidationMessageClientImpl::currentView() |
| { |
| return m_currentAnchor->document().view(); |
| } |
| |
| void ValidationMessageClientImpl::showValidationMessage(const Element& anchor, const String& message, TextDirection messageDir, const String& subMessage, TextDirection subMessageDir) |
| { |
| if (message.isEmpty()) { |
| hideValidationMessage(anchor); |
| return; |
| } |
| if (!anchor.renderBox()) |
| return; |
| if (m_currentAnchor) |
| hideValidationMessage(*m_currentAnchor); |
| m_currentAnchor = &anchor; |
| IntRect anchorInRootView = currentView()->contentsToRootView(anchor.pixelSnappedBoundingBox()); |
| m_lastAnchorRectInScreen = currentView()->hostWindow()->rootViewToScreen(anchorInRootView); |
| m_lastPageScaleFactor = m_webView.pageScaleFactor(); |
| m_message = message; |
| const double minimumSecondToShowValidationMessage = 5.0; |
| const double secondPerCharacter = 0.05; |
| const double statusCheckInterval = 0.1; |
| |
| m_webView.client()->showValidationMessage(anchorInRootView, m_message, toWebTextDirection(messageDir), |
| subMessage, toWebTextDirection(subMessageDir)); |
| m_webView.client()->showValidationMessage(anchorInRootView, m_message, subMessage, toWebTextDirection(messageDir)); |
| |
| m_finishTime = monotonicallyIncreasingTime() + std::max(minimumSecondToShowValidationMessage, (message.length() + subMessage.length()) * secondPerCharacter); |
| // FIXME: We should invoke checkAnchorStatus actively when layout, scroll, |
| // or page scale change happen. |
| m_timer.startRepeating(statusCheckInterval, FROM_HERE); |
| } |
| |
| void ValidationMessageClientImpl::hideValidationMessage(const Element& anchor) |
| { |
| if (!m_currentAnchor || !isValidationMessageVisible(anchor)) |
| return; |
| m_timer.stop(); |
| m_currentAnchor = nullptr; |
| m_message = String(); |
| m_finishTime = 0; |
| m_webView.client()->hideValidationMessage(); |
| } |
| |
| bool ValidationMessageClientImpl::isValidationMessageVisible(const Element& anchor) |
| { |
| return m_currentAnchor == &anchor; |
| } |
| |
| void ValidationMessageClientImpl::documentDetached(const Document& document) |
| { |
| if (m_currentAnchor && m_currentAnchor->document() == document) |
| hideValidationMessage(*m_currentAnchor); |
| } |
| |
| void ValidationMessageClientImpl::checkAnchorStatus(Timer<ValidationMessageClientImpl>*) |
| { |
| ASSERT(m_currentAnchor); |
| if (monotonicallyIncreasingTime() >= m_finishTime || !currentView()) { |
| hideValidationMessage(*m_currentAnchor); |
| return; |
| } |
| |
| // Check the visibility of the element. |
| // FIXME: Can we check invisibility by scrollable non-frame elements? |
| IntRect newAnchorRect = currentView()->contentsToRootView(m_currentAnchor->pixelSnappedBoundingBox()); |
| newAnchorRect = intersection(currentView()->convertToRootView(currentView()->boundsRect()), newAnchorRect); |
| if (newAnchorRect.isEmpty()) { |
| hideValidationMessage(*m_currentAnchor); |
| return; |
| } |
| |
| IntRect newAnchorRectInScreen = currentView()->hostWindow()->rootViewToScreen(newAnchorRect); |
| if (newAnchorRectInScreen == m_lastAnchorRectInScreen && m_webView.pageScaleFactor() == m_lastPageScaleFactor) |
| return; |
| m_lastAnchorRectInScreen = newAnchorRectInScreen; |
| m_lastPageScaleFactor = m_webView.pageScaleFactor(); |
| m_webView.client()->moveValidationMessage(newAnchorRect); |
| } |
| |
| void ValidationMessageClientImpl::willBeDestroyed() |
| { |
| if (m_currentAnchor) |
| hideValidationMessage(*m_currentAnchor); |
| } |
| |
| void ValidationMessageClientImpl::trace(Visitor* visitor) |
| { |
| visitor->trace(m_currentAnchor); |
| ValidationMessageClient::trace(visitor); |
| } |
| |
| } // namespace blink |