| /* |
| * Copyright (C) 2006, 2007, 2009, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) 2012, Samsung Electronics. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "third_party/blink/renderer/core/page/chrome_client.h" |
| |
| #include <algorithm> |
| #include "third_party/blink/public/platform/web_screen_info.h" |
| #include "third_party/blink/renderer/core/core_initializer.h" |
| #include "third_party/blink/renderer/core/dom/document.h" |
| #include "third_party/blink/renderer/core/dom/element.h" |
| #include "third_party/blink/renderer/core/frame/frame_console.h" |
| #include "third_party/blink/renderer/core/frame/local_frame.h" |
| #include "third_party/blink/renderer/core/inspector/console_message.h" |
| #include "third_party/blink/renderer/core/layout/hit_test_result.h" |
| #include "third_party/blink/renderer/core/page/frame_tree.h" |
| #include "third_party/blink/renderer/core/page/page.h" |
| #include "third_party/blink/renderer/core/page/scoped_page_pauser.h" |
| #include "third_party/blink/renderer/core/probe/core_probes.h" |
| #include "third_party/blink/renderer/platform/geometry/int_rect.h" |
| #include "third_party/blink/renderer/platform/network/network_hints.h" |
| |
| namespace blink { |
| |
| void ChromeClient::Trace(blink::Visitor* visitor) { |
| visitor->Trace(last_mouse_over_node_); |
| } |
| |
| void ChromeClient::InstallSupplements(LocalFrame& frame) { |
| CoreInitializer::GetInstance().InstallSupplements(frame); |
| } |
| |
| void ChromeClient::SetWindowRectWithAdjustment(const IntRect& pending_rect, |
| LocalFrame& frame) { |
| IntRect screen = GetScreenInfo().available_rect; |
| IntRect window = pending_rect; |
| |
| IntSize minimum_size = MinimumWindowSize(); |
| IntSize size_for_constraining_move = minimum_size; |
| // Let size 0 pass through, since that indicates default size, not minimum |
| // size. |
| if (window.Width()) { |
| window.SetWidth(std::min(std::max(minimum_size.Width(), window.Width()), |
| screen.Width())); |
| size_for_constraining_move.SetWidth(window.Width()); |
| } |
| if (window.Height()) { |
| window.SetHeight(std::min(std::max(minimum_size.Height(), window.Height()), |
| screen.Height())); |
| size_for_constraining_move.SetHeight(window.Height()); |
| } |
| |
| // Constrain the window position within the valid screen area. |
| window.SetX( |
| std::max(screen.X(), |
| std::min(window.X(), |
| screen.MaxX() - size_for_constraining_move.Width()))); |
| window.SetY( |
| std::max(screen.Y(), |
| std::min(window.Y(), |
| screen.MaxY() - size_for_constraining_move.Height()))); |
| SetWindowRect(window, frame); |
| } |
| |
| bool ChromeClient::CanOpenModalIfDuringPageDismissal( |
| Frame& main_frame, |
| ChromeClient::DialogType dialog, |
| const String& message) { |
| for (Frame* frame = &main_frame; frame; |
| frame = frame->Tree().TraverseNext()) { |
| if (!frame->IsLocalFrame()) |
| continue; |
| LocalFrame& local_frame = ToLocalFrame(*frame); |
| Document::PageDismissalType dismissal = |
| local_frame.GetDocument()->PageDismissalEventBeingDispatched(); |
| if (dismissal != Document::kNoDismissal) { |
| return ShouldOpenModalDialogDuringPageDismissal(local_frame, dialog, |
| message, dismissal); |
| } |
| } |
| return true; |
| } |
| |
| template <typename Delegate> |
| static bool OpenJavaScriptDialog(LocalFrame* frame, |
| const String& message, |
| ChromeClient::DialogType dialog_type, |
| const Delegate& delegate) { |
| // Suspend pages in case the client method runs a new event loop that would |
| // otherwise cause the load to continue while we're in the middle of |
| // executing JavaScript. |
| ScopedPagePauser pauser; |
| probe::willRunJavaScriptDialog(frame); |
| bool result = delegate(); |
| probe::didRunJavaScriptDialog(frame); |
| return result; |
| } |
| |
| bool ChromeClient::OpenBeforeUnloadConfirmPanel(const String& message, |
| LocalFrame* frame, |
| bool is_reload) { |
| DCHECK(frame); |
| return OpenJavaScriptDialog( |
| frame, message, ChromeClient::kHTMLDialog, [this, frame, is_reload]() { |
| return OpenBeforeUnloadConfirmPanelDelegate(frame, is_reload); |
| }); |
| } |
| |
| bool ChromeClient::OpenJavaScriptAlert(LocalFrame* frame, |
| const String& message) { |
| DCHECK(frame); |
| if (!CanOpenModalIfDuringPageDismissal(frame->Tree().Top(), |
| ChromeClient::kAlertDialog, message)) |
| return false; |
| return OpenJavaScriptDialog( |
| frame, message, ChromeClient::kAlertDialog, [this, frame, &message]() { |
| return OpenJavaScriptAlertDelegate(frame, message); |
| }); |
| } |
| |
| bool ChromeClient::OpenJavaScriptConfirm(LocalFrame* frame, |
| const String& message) { |
| DCHECK(frame); |
| if (!CanOpenModalIfDuringPageDismissal(frame->Tree().Top(), |
| ChromeClient::kConfirmDialog, message)) |
| return false; |
| return OpenJavaScriptDialog( |
| frame, message, ChromeClient::kConfirmDialog, [this, frame, &message]() { |
| return OpenJavaScriptConfirmDelegate(frame, message); |
| }); |
| } |
| |
| bool ChromeClient::OpenJavaScriptPrompt(LocalFrame* frame, |
| const String& prompt, |
| const String& default_value, |
| String& result) { |
| DCHECK(frame); |
| if (!CanOpenModalIfDuringPageDismissal(frame->Tree().Top(), |
| ChromeClient::kPromptDialog, prompt)) |
| return false; |
| return OpenJavaScriptDialog( |
| frame, prompt, ChromeClient::kPromptDialog, |
| [this, frame, &prompt, &default_value, &result]() { |
| return OpenJavaScriptPromptDelegate(frame, prompt, default_value, |
| result); |
| }); |
| } |
| |
| void ChromeClient::MouseDidMoveOverElement(LocalFrame& frame, |
| const HitTestLocation& location, |
| const HitTestResult& result) { |
| if (!result.GetScrollbar() && result.InnerNode() && |
| result.InnerNode()->GetDocument().IsDNSPrefetchEnabled()) |
| PrefetchDNS(result.AbsoluteLinkURL().Host()); |
| |
| ShowMouseOverURL(result); |
| |
| if (result.GetScrollbar()) |
| ClearToolTip(frame); |
| else |
| SetToolTip(frame, location, result); |
| } |
| |
| void ChromeClient::SetToolTip(LocalFrame& frame, |
| const HitTestLocation& location, |
| const HitTestResult& result) { |
| // First priority is a tooltip for element with "title" attribute. |
| TextDirection tool_tip_direction; |
| String tool_tip = result.Title(tool_tip_direction); |
| |
| // Lastly, some elements provide default tooltip strings. e.g. <input |
| // type="file" multiple> shows a tooltip for the selected filenames. |
| if (tool_tip.IsEmpty()) { |
| if (Node* node = result.InnerNode()) { |
| if (node->IsElementNode()) { |
| tool_tip = ToElement(node)->DefaultToolTip(); |
| |
| // FIXME: We should obtain text direction of tooltip from |
| // ChromeClient or platform. As of October 2011, all client |
| // implementations don't use text direction information for |
| // ChromeClient::setToolTip. We'll work on tooltip text |
| // direction during bidi cleanup in form inputs. |
| tool_tip_direction = TextDirection::kLtr; |
| } |
| } |
| } |
| |
| if (last_tool_tip_point_ == location.Point() && |
| last_tool_tip_text_ == tool_tip) |
| return; |
| |
| // If a tooltip was displayed earlier, and mouse cursor moves over |
| // a different node with the same tooltip text, make sure the previous |
| // tooltip is unset, so that it does not get stuck positioned relative |
| // to the previous node). |
| // The ::setToolTip overload, which is be called down the road, |
| // ensures a new tooltip to be displayed with the new context. |
| if (result.InnerNodeOrImageMapImage() != last_mouse_over_node_ && |
| !last_tool_tip_text_.IsEmpty() && tool_tip == last_tool_tip_text_) |
| ClearToolTip(frame); |
| |
| last_tool_tip_point_ = location.Point(); |
| last_tool_tip_text_ = tool_tip; |
| last_mouse_over_node_ = result.InnerNodeOrImageMapImage(); |
| SetToolTip(frame, tool_tip, tool_tip_direction); |
| } |
| |
| void ChromeClient::ClearToolTip(LocalFrame& frame) { |
| // Do not check m_lastToolTip* and do not update them intentionally. |
| // We don't want to show tooltips with same content after clearToolTip(). |
| SetToolTip(frame, String(), TextDirection::kLtr); |
| } |
| |
| bool ChromeClient::Print(LocalFrame* frame) { |
| if (!CanOpenModalIfDuringPageDismissal(*frame->GetPage()->MainFrame(), |
| ChromeClient::kPrintDialog, "")) { |
| return false; |
| } |
| |
| if (frame->GetDocument()->IsSandboxed(kSandboxModals)) { |
| UseCounter::Count(frame, WebFeature::kDialogInSandboxedContext); |
| frame->Console().AddMessage(ConsoleMessage::Create( |
| kSecurityMessageSource, kErrorMessageLevel, |
| "Ignored call to 'print()'. The document is sandboxed, and the " |
| "'allow-modals' keyword is not set.")); |
| return false; |
| } |
| |
| // Suspend pages in case the client method runs a new event loop that would |
| // otherwise cause the load to continue while we're in the middle of |
| // executing JavaScript. |
| ScopedPagePauser pauser; |
| |
| PrintDelegate(frame); |
| return true; |
| } |
| |
| } // namespace blink |
