| /* |
| * 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 "web/ValidationMessageClientImpl.h" |
| |
| #include "core/dom/Element.h" |
| #include "core/dom/TaskRunnerHelper.h" |
| #include "core/frame/FrameView.h" |
| #include "platform/PlatformChromeClient.h" |
| #include "platform/wtf/CurrentTime.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" |
| |
| namespace blink { |
| |
| ValidationMessageClientImpl::ValidationMessageClientImpl(WebViewImpl& web_view) |
| : web_view_(web_view), |
| current_anchor_(nullptr), |
| last_page_scale_factor_(1), |
| finish_time_(0) {} |
| |
| ValidationMessageClientImpl* ValidationMessageClientImpl::Create( |
| WebViewImpl& web_view) { |
| return new ValidationMessageClientImpl(web_view); |
| } |
| |
| ValidationMessageClientImpl::~ValidationMessageClientImpl() {} |
| |
| FrameView* ValidationMessageClientImpl::CurrentView() { |
| return current_anchor_->GetDocument().View(); |
| } |
| |
| void ValidationMessageClientImpl::ShowValidationMessage( |
| const Element& anchor, |
| const String& message, |
| TextDirection message_dir, |
| const String& sub_message, |
| TextDirection sub_message_dir) { |
| if (message.IsEmpty()) { |
| HideValidationMessage(anchor); |
| return; |
| } |
| if (!anchor.GetLayoutBox()) |
| return; |
| if (current_anchor_) |
| HideValidationMessage(*current_anchor_); |
| current_anchor_ = &anchor; |
| IntRect anchor_in_viewport = |
| CurrentView()->ContentsToViewport(anchor.PixelSnappedBoundingBox()); |
| last_anchor_rect_in_screen_ = |
| CurrentView()->GetChromeClient()->ViewportToScreen(anchor_in_viewport, |
| CurrentView()); |
| last_page_scale_factor_ = web_view_.PageScaleFactor(); |
| message_ = message; |
| const double kMinimumSecondToShowValidationMessage = 5.0; |
| const double kSecondPerCharacter = 0.05; |
| const double kStatusCheckInterval = 0.1; |
| |
| web_view_.Client()->ShowValidationMessage( |
| anchor_in_viewport, message_, ToWebTextDirection(message_dir), |
| sub_message, ToWebTextDirection(sub_message_dir)); |
| web_view_.ChromeClient().RegisterPopupOpeningObserver(this); |
| |
| finish_time_ = |
| MonotonicallyIncreasingTime() + |
| std::max(kMinimumSecondToShowValidationMessage, |
| (message.length() + sub_message.length()) * kSecondPerCharacter); |
| // FIXME: We should invoke checkAnchorStatus actively when layout, scroll, |
| // or page scale change happen. |
| timer_ = WTF::MakeUnique<TaskRunnerTimer<ValidationMessageClientImpl>>( |
| TaskRunnerHelper::Get(TaskType::kUnspecedTimer, &anchor.GetDocument()), |
| this, &ValidationMessageClientImpl::CheckAnchorStatus); |
| timer_->StartRepeating(kStatusCheckInterval, BLINK_FROM_HERE); |
| } |
| |
| void ValidationMessageClientImpl::HideValidationMessage(const Element& anchor) { |
| if (!current_anchor_ || !IsValidationMessageVisible(anchor)) |
| return; |
| timer_ = nullptr; |
| current_anchor_ = nullptr; |
| message_ = String(); |
| finish_time_ = 0; |
| web_view_.Client()->HideValidationMessage(); |
| web_view_.ChromeClient().UnregisterPopupOpeningObserver(this); |
| } |
| |
| bool ValidationMessageClientImpl::IsValidationMessageVisible( |
| const Element& anchor) { |
| return current_anchor_ == &anchor; |
| } |
| |
| void ValidationMessageClientImpl::WillUnloadDocument(const Document& document) { |
| if (current_anchor_ && current_anchor_->GetDocument() == document) |
| HideValidationMessage(*current_anchor_); |
| } |
| |
| void ValidationMessageClientImpl::DocumentDetached(const Document& document) { |
| DCHECK(!current_anchor_ || current_anchor_->GetDocument() != document) |
| << "willUnloadDocument() should be called beforehand."; |
| } |
| |
| void ValidationMessageClientImpl::CheckAnchorStatus(TimerBase*) { |
| DCHECK(current_anchor_); |
| if (MonotonicallyIncreasingTime() >= finish_time_ || !CurrentView()) { |
| HideValidationMessage(*current_anchor_); |
| return; |
| } |
| |
| IntRect new_anchor_rect_in_viewport = |
| current_anchor_->VisibleBoundsInVisualViewport(); |
| if (new_anchor_rect_in_viewport.IsEmpty()) { |
| HideValidationMessage(*current_anchor_); |
| return; |
| } |
| |
| IntRect new_anchor_rect_in_viewport_in_screen = |
| CurrentView()->GetChromeClient()->ViewportToScreen( |
| new_anchor_rect_in_viewport, CurrentView()); |
| if (new_anchor_rect_in_viewport_in_screen == last_anchor_rect_in_screen_ && |
| web_view_.PageScaleFactor() == last_page_scale_factor_) |
| return; |
| last_anchor_rect_in_screen_ = new_anchor_rect_in_viewport_in_screen; |
| last_page_scale_factor_ = web_view_.PageScaleFactor(); |
| web_view_.Client()->MoveValidationMessage(new_anchor_rect_in_viewport); |
| } |
| |
| void ValidationMessageClientImpl::WillBeDestroyed() { |
| if (current_anchor_) |
| HideValidationMessage(*current_anchor_); |
| } |
| |
| void ValidationMessageClientImpl::WillOpenPopup() { |
| if (current_anchor_) |
| HideValidationMessage(*current_anchor_); |
| } |
| |
| DEFINE_TRACE(ValidationMessageClientImpl) { |
| visitor->Trace(current_anchor_); |
| ValidationMessageClient::Trace(visitor); |
| } |
| |
| } // namespace blink |