flutter_flutter/sky/engine/core/frame/LocalDOMWindow.cpp

 /*
 * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
 *
 * 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
 * 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 "sky/engine/core/frame/LocalDOMWindow.h"

#include <algorithm>
#include "gen/sky/platform/RuntimeEnabledFeatures.h"
#include "gen/sky/core/EventTypeNames.h"
#include "mojo/services/navigation/public/interfaces/navigation.mojom.h"
#include "sky/engine/bindings/exception_messages.h"
#include "sky/engine/bindings/exception_state.h"
#include "sky/engine/bindings/exception_state_placeholder.h"
#include "sky/engine/core/css/CSSComputedStyleDeclaration.h"
#include "sky/engine/core/css/MediaQueryList.h"
#include "sky/engine/core/css/MediaQueryMatcher.h"
#include "sky/engine/core/css/resolver/StyleResolver.h"
#include "sky/engine/core/dom/Document.h"
#include "sky/engine/core/dom/Element.h"
#include "sky/engine/core/dom/ExceptionCode.h"
#include "sky/engine/core/dom/RequestAnimationFrameCallback.h"
#include "sky/engine/core/frame/DOMWindowProperty.h"
#include "sky/engine/core/frame/FrameHost.h"
#include "sky/engine/core/frame/FrameView.h"
#include "sky/engine/core/frame/LocalFrame.h"
#include "sky/engine/core/frame/Settings.h"
#include "sky/engine/core/frame/Tracing.h"
#include "sky/engine/core/inspector/ConsoleMessage.h"
#include "sky/engine/core/loader/FrameLoaderClient.h"
#include "sky/engine/core/page/ChromeClient.h"
#include "sky/engine/core/page/Page.h"
#include "sky/engine/core/rendering/style/RenderStyle.h"
#include "sky/engine/core/script/dart_controller.h"
#include "sky/engine/core/script/dom_dart_state.h"
#include "sky/engine/platform/EventDispatchForbiddenScope.h"
#include "sky/engine/platform/geometry/FloatRect.h"
#include "sky/engine/platform/weborigin/KURL.h"
#include "sky/engine/platform/weborigin/SecurityPolicy.h"
#include "sky/engine/public/platform/Platform.h"
#include "sky/engine/public/platform/ServiceProvider.h"
#include "sky/engine/tonic/dart_gc_visitor.h"
#include "sky/engine/wtf/HashCountedSet.h"
#include "sky/engine/wtf/MainThread.h"
#include "sky/engine/wtf/MathExtras.h"
#include "sky/engine/wtf/text/WTFString.h"

using std::min;
using std::max;

namespace blink {

typedef HashCountedSet<LocalDOMWindow*> DOMWindowSet;

LocalDOMWindow::LocalDOMWindow(LocalFrame& frame)
    : FrameDestructionObserver(&frame)
#if ENABLE(ASSERT)
    , m_hasBeenReset(false)
#endif
{
}

void LocalDOMWindow::clearDocument()
{
    if (!m_document)
        return;

    m_document->clearDOMWindow();
    m_document = nullptr;
}

PassRefPtr<Document> LocalDOMWindow::installNewDocument(const DocumentInit& init)
{
    ASSERT(init.frame() == m_frame);

    clearDocument();

    m_document = Document::create(init);
    m_document->attach();
    return m_document;
}

LocalDOMWindow::~LocalDOMWindow()
{
    ASSERT(m_hasBeenReset);
    reset();

    ASSERT(m_document->isStopped());
    clearDocument();

}

void LocalDOMWindow::AcceptDartGCVisitor(DartGCVisitor& visitor) const {
    visitor.AddToSetForRoot(document(), dart_wrapper());
}

PassRefPtr<MediaQueryList> LocalDOMWindow::matchMedia(const String& media)
{
    return document() ? document()->mediaQueryMatcher().matchMedia(media) : nullptr;
}

Page* LocalDOMWindow::page()
{
    return frame() ? frame()->page() : 0;
}

void LocalDOMWindow::frameDestroyed()
{
    FrameDestructionObserver::frameDestroyed();
    reset();
}

void LocalDOMWindow::willDetachFrameHost()
{
    // FIXME(sky): remove
}

void LocalDOMWindow::willDestroyDocumentInFrame()
{
    // It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
    // unregister themselves from the LocalDOMWindow as a result of the call to willDestroyGlobalObjectInFrame.
    Vector<DOMWindowProperty*> properties;
    copyToVector(m_properties, properties);
    for (size_t i = 0; i < properties.size(); ++i)
        properties[i]->willDestroyGlobalObjectInFrame();
}

void LocalDOMWindow::willDetachDocumentFromFrame()
{
    // It is necessary to copy m_properties to a separate vector because the DOMWindowProperties may
    // unregister themselves from the LocalDOMWindow as a result of the call to willDetachGlobalObjectFromFrame.
    Vector<DOMWindowProperty*> properties;
    copyToVector(m_properties, properties);
    for (size_t i = 0; i < properties.size(); ++i)
        properties[i]->willDetachGlobalObjectFromFrame();
}

void LocalDOMWindow::registerProperty(DOMWindowProperty* property)
{
    m_properties.add(property);
}

void LocalDOMWindow::unregisterProperty(DOMWindowProperty* property)
{
    m_properties.remove(property);
}

void LocalDOMWindow::reset()
{
    willDestroyDocumentInFrame();
    resetDOMWindowProperties();
}

void LocalDOMWindow::resetDOMWindowProperties()
{
    m_properties.clear();

#if ENABLE(ASSERT)
    m_hasBeenReset = true;
#endif
}

int LocalDOMWindow::orientation() const
{
    return 0;
}

Tracing& LocalDOMWindow::tracing() const
{
    if (!m_tracing)
        m_tracing = Tracing::create();
    return *m_tracing;
}

int LocalDOMWindow::outerHeight() const
{
    if (!m_frame)
        return 0;

    FrameHost* host = m_frame->host();
    if (!host)
        return 0;

    return static_cast<int>(host->page().windowRect().height());
}

int LocalDOMWindow::outerWidth() const
{
    if (!m_frame)
        return 0;

    FrameHost* host = m_frame->host();
    if (!host)
        return 0;

    return static_cast<int>(host->page().windowRect().width());
}

int LocalDOMWindow::innerHeight() const
{
    if (!m_frame)
        return 0;

    FrameView* view = m_frame->view();
    if (!view)
        return 0;

    return view->visibleContentRect().height();
}

int LocalDOMWindow::innerWidth() const
{
    if (!m_frame)
        return 0;

    FrameView* view = m_frame->view();
    if (!view)
        return 0;

    return view->visibleContentRect().width();
}

LocalDOMWindow* LocalDOMWindow::window() const
{
    if (!m_frame)
        return 0;

    return m_frame->domWindow();
}

Document* LocalDOMWindow::document() const
{
    return m_document.get();
}

PassRefPtr<CSSStyleDeclaration> LocalDOMWindow::getComputedStyle(Element* elt) const
{
    if (!elt)
        return nullptr;

    return CSSComputedStyleDeclaration::create(elt, false);
}

double LocalDOMWindow::devicePixelRatio() const
{
    if (!m_frame)
        return 0.0;

    return m_frame->devicePixelRatio();
}

void LocalDOMWindow::moveBy(float x, float y) const
{
}

void LocalDOMWindow::moveTo(float x, float y) const
{
}

void LocalDOMWindow::resizeBy(float x, float y) const
{
}

void LocalDOMWindow::resizeTo(float width, float height) const
{
}

int LocalDOMWindow::requestAnimationFrame(PassOwnPtr<RequestAnimationFrameCallback> callback)
{
    if (Document* d = document())
        return d->requestAnimationFrame(callback);
    return 0;
}

void LocalDOMWindow::cancelAnimationFrame(int id)
{
    if (Document* d = document())
        d->cancelAnimationFrame(id);
}

void LocalDOMWindow::printErrorMessage(const String& message)
{
    if (message.isEmpty())
        return;
}

bool LocalDOMWindow::isInsecureScriptAccess(LocalDOMWindow& callingWindow, const String& urlString)
{
    // FIXME(sky): remove.
    return false;
}

} // namespace blink