| /* |
| * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org> |
| * 1999 Lars Knoll <knoll@kde.org> |
| * 1999 Antti Koivisto <koivisto@kde.org> |
| * 2000 Simon Hausmann <hausmann@kde.org> |
| * 2000 Stefan Schimanski <1Stein@gmx.de> |
| * 2001 George Staikos <staikos@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com> |
| * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) 2008 Eric Seidel <eric@webkit.org> |
| * Copyright (C) 2008 Google Inc. |
| * |
| * 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 "sky/engine/core/frame/LocalFrame.h" |
| |
| #include "gen/sky/platform/RuntimeEnabledFeatures.h" |
| #include "sky/engine/core/dom/Range.h" |
| #include "sky/engine/core/editing/htmlediting.h" |
| #include "sky/engine/core/editing/RenderedPosition.h" |
| #include "sky/engine/core/editing/VisiblePosition.h" |
| #include "sky/engine/core/events/Event.h" |
| #include "sky/engine/core/frame/FrameDestructionObserver.h" |
| #include "sky/engine/core/frame/FrameHost.h" |
| #include "sky/engine/core/frame/FrameView.h" |
| #include "sky/engine/core/frame/LocalDOMWindow.h" |
| #include "sky/engine/core/frame/Settings.h" |
| #include "sky/engine/core/loader/FrameLoaderClient.h" |
| #include "sky/engine/core/page/Page.h" |
| #include "sky/engine/core/rendering/HitTestResult.h" |
| #include "sky/engine/core/rendering/RenderLayer.h" |
| #include "sky/engine/core/rendering/RenderView.h" |
| #include "sky/engine/core/script/dart_controller.h" |
| #include "sky/engine/platform/graphics/GraphicsContext.h" |
| #include "sky/engine/platform/graphics/ImageBuffer.h" |
| #include "sky/engine/platform/text/TextStream.h" |
| #include "sky/engine/wtf/PassOwnPtr.h" |
| #include "sky/engine/wtf/StdLibExtras.h" |
| |
| namespace blink { |
| |
| inline LocalFrame::LocalFrame(FrameLoaderClient* client, FrameHost* host) |
| : Frame(client, host) |
| , m_deprecatedLoader(this) |
| , m_document(nullptr) |
| { |
| if (page()) |
| page()->setMainFrame(this); |
| } |
| |
| PassRefPtr<LocalFrame> LocalFrame::create(FrameLoaderClient* client, FrameHost* host) |
| { |
| return adoptRef(new LocalFrame(client, host)); |
| } |
| |
| LocalFrame::~LocalFrame() |
| { |
| setView(nullptr); |
| m_deprecatedLoader.clear(); |
| setDOMWindow(nullptr); |
| |
| // FIXME: What to do here... some of this is redundant with ~Frame. |
| HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end(); |
| for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it) |
| (*it)->frameDestroyed(); |
| } |
| |
| FrameLoaderClient* LocalFrame::loaderClient() const |
| { |
| return static_cast<FrameLoaderClient*>(client()); |
| } |
| |
| void LocalFrame::detach() |
| { |
| // A lot of the following steps can result in the current frame being |
| // detached, so protect a reference to it. |
| RefPtr<LocalFrame> protect(this); |
| m_deprecatedLoader.stopAllLoaders(); |
| m_deprecatedLoader.closeURL(); |
| detachChildren(); |
| // stopAllLoaders() needs to be called after detachChildren(), because detachChildren() |
| // will trigger the unload event handlers of any child frames, and those event |
| // handlers might start a new subresource load in this frame. |
| m_deprecatedLoader.stopAllLoaders(); |
| |
| setView(nullptr); |
| willDetachFrameHost(); |
| |
| // After this, we must no longer talk to the client since this clears |
| // its owning reference back to our owning LocalFrame. |
| loaderClient()->detachedFromParent(); |
| clearClient(); |
| detachFromFrameHost(); |
| } |
| |
| void LocalFrame::setView(PassRefPtr<FrameView> view) |
| { |
| // We the custom scroll bars as early as possible to prevent m_doc->detach() |
| // from messing with the view such that its scroll bars won't be torn down. |
| // FIXME: We should revisit this. |
| if (m_view) |
| m_view->prepareForDetach(); |
| |
| // Prepare for destruction now, so any unload event handlers get run and the LocalDOMWindow is |
| // notified. If we wait until the view is destroyed, then things won't be hooked up enough for |
| // these calls to work. |
| if (!view && document() && document()->isActive()) { |
| // FIXME: We don't call willRemove here. Why is that OK? |
| document()->prepareForDestruction(); |
| } |
| |
| m_view = view; |
| } |
| |
| FloatSize LocalFrame::resizePageRectsKeepingRatio(const FloatSize& originalSize, const FloatSize& expectedSize) |
| { |
| FloatSize resultSize; |
| if (!contentRenderer()) |
| return FloatSize(); |
| |
| ASSERT(fabs(originalSize.width()) > std::numeric_limits<float>::epsilon()); |
| float ratio = originalSize.height() / originalSize.width(); |
| resultSize.setWidth(floorf(expectedSize.width())); |
| resultSize.setHeight(floorf(resultSize.width() * ratio)); |
| return resultSize; |
| } |
| |
| void LocalFrame::setDOMWindow(PassRefPtr<LocalDOMWindow> domWindow) |
| { |
| Frame::setDOMWindow(domWindow); |
| } |
| |
| void LocalFrame::addDestructionObserver(FrameDestructionObserver* observer) |
| { |
| m_destructionObservers.add(observer); |
| } |
| |
| void LocalFrame::removeDestructionObserver(FrameDestructionObserver* observer) |
| { |
| m_destructionObservers.remove(observer); |
| } |
| |
| void LocalFrame::willDetachFrameHost() |
| { |
| // We should never be detatching the page during a Layout. |
| RELEASE_ASSERT(!m_view || !m_view->isInPerformLayout()); |
| |
| HashSet<FrameDestructionObserver*>::iterator stop = m_destructionObservers.end(); |
| for (HashSet<FrameDestructionObserver*>::iterator it = m_destructionObservers.begin(); it != stop; ++it) |
| (*it)->willDetachFrameHost(); |
| } |
| |
| void LocalFrame::detachFromFrameHost() |
| { |
| // We should never be detatching the page during a Layout. |
| RELEASE_ASSERT(!m_view || !m_view->isInPerformLayout()); |
| m_host = 0; |
| } |
| |
| VisiblePosition LocalFrame::visiblePositionForPoint(const IntPoint& framePoint) |
| { |
| if (!contentRenderer() || !view() || !view()->didFirstLayout()) |
| return VisiblePosition(); |
| |
| LayoutSize padding = LayoutSize(); |
| HitTestResult result(framePoint, padding.height(), padding.width(), padding.height(), padding.width()); |
| HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active); |
| contentRenderer()->hitTest(request, result); |
| |
| Node* node = result.innerNonSharedNode(); |
| if (!node) |
| return VisiblePosition(); |
| RenderObject* renderer = node->renderer(); |
| if (!renderer) |
| return VisiblePosition(); |
| VisiblePosition visiblePos = VisiblePosition(renderer->positionForPoint(result.localPoint())); |
| if (visiblePos.isNull()) |
| visiblePos = VisiblePosition(firstPositionInOrBeforeNode(node)); |
| return visiblePos; |
| } |
| |
| RenderView* LocalFrame::contentRenderer() const |
| { |
| return document() ? document()->renderView() : 0; |
| } |
| |
| void LocalFrame::setDocument(Document* document) |
| { |
| m_document = document; |
| } |
| |
| Document* LocalFrame::document() const |
| { |
| if (m_document) |
| return m_document; |
| return m_domWindow ? m_domWindow->document() : 0; |
| } |
| |
| IntRect firstRectForRange(Range* range) |
| { |
| LayoutUnit extraWidthToEndOfLine = 0; |
| ASSERT(range->startContainer()); |
| ASSERT(range->endContainer()); |
| |
| IntRect startCaretRect = RenderedPosition(VisiblePosition(range->startPosition()).deepEquivalent(), DOWNSTREAM).absoluteRect(&extraWidthToEndOfLine); |
| if (startCaretRect == LayoutRect()) |
| return IntRect(); |
| |
| IntRect endCaretRect = RenderedPosition(VisiblePosition(range->endPosition()).deepEquivalent(), UPSTREAM).absoluteRect(); |
| if (endCaretRect == LayoutRect()) |
| return IntRect(); |
| |
| if (startCaretRect.y() == endCaretRect.y()) { |
| // start and end are on the same line |
| return IntRect(std::min(startCaretRect.x(), endCaretRect.x()), |
| startCaretRect.y(), |
| abs(endCaretRect.x() - startCaretRect.x()), |
| std::max(startCaretRect.height(), endCaretRect.height())); |
| } |
| |
| // start and end aren't on the same line, so go from start to the end of its line |
| return IntRect(startCaretRect.x(), |
| startCaretRect.y(), |
| startCaretRect.width() + extraWidthToEndOfLine, |
| startCaretRect.height()); |
| } |
| |
| PassRefPtr<Range> LocalFrame::rangeForPoint(const IntPoint& framePoint) |
| { |
| VisiblePosition position = visiblePositionForPoint(framePoint); |
| if (position.isNull()) |
| return nullptr; |
| |
| VisiblePosition previous = position.previous(); |
| if (previous.isNotNull()) { |
| RefPtr<Range> previousCharacterRange = makeRange(previous, position); |
| LayoutRect rect = firstRectForRange(previousCharacterRange.get()); |
| if (rect.contains(framePoint)) |
| return previousCharacterRange.release(); |
| } |
| |
| VisiblePosition next = position.next(); |
| if (RefPtr<Range> nextCharacterRange = makeRange(position, next)) { |
| LayoutRect rect = firstRectForRange(nextCharacterRange.get()); |
| if (rect.contains(framePoint)) |
| return nextCharacterRange.release(); |
| } |
| |
| return nullptr; |
| } |
| |
| void LocalFrame::createView(const IntSize& viewportSize, const Color& backgroundColor, bool transparent) |
| { |
| ASSERT(this); |
| |
| setView(nullptr); |
| |
| RefPtr<FrameView> frameView; |
| frameView = FrameView::create(this, viewportSize); |
| |
| // The layout size is set by WebViewImpl to support @viewport |
| frameView->setLayoutSizeFixedToFrameSize(false); |
| |
| setView(frameView); |
| |
| frameView->updateBackgroundRecursively(backgroundColor, transparent); |
| } |
| |
| void LocalFrame::deviceOrPageScaleFactorChanged() |
| { |
| document()->mediaQueryAffectingValueChanged(); |
| } |
| |
| double LocalFrame::devicePixelRatio() const |
| { |
| if (!m_host) |
| return 0; |
| return m_host->deviceScaleFactor(); |
| } |
| |
| } // namespace blink |