WebChromeClientIOS.mm   [plain text]

/*
 * Copyright (C) 2012 Apple 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.
 */

#import "config.h"
#import "WebChromeClient.h"

#if PLATFORM(IOS_FAMILY)

#import "DrawingArea.h"
#import "InteractionInformationAtPosition.h"
#import "InteractionInformationRequest.h"
#import "UIKitSPI.h"
#import "WebCoreArgumentCoders.h"
#import "WebFrame.h"
#import "WebIconUtilities.h"
#import "WebPage.h"
#import "WebPageProxyMessages.h"
#import <WebCore/AudioSession.h>
#import <WebCore/ContentChangeObserver.h>
#import <WebCore/Icon.h>
#import <WebCore/MouseEvent.h>
#import <WebCore/NotImplemented.h>
#import <WebCore/PlatformMouseEvent.h>
#import <wtf/RefPtr.h>

namespace WebKit {
using namespace WebCore;

#if ENABLE(IOS_TOUCH_EVENTS)

void WebChromeClient::didPreventDefaultForEvent()
{
    if (!m_page.mainFrame())
        return;
    ContentChangeObserver::didPreventDefaultForEvent(*m_page.mainFrame());
}

#endif

void WebChromeClient::didReceiveMobileDocType(bool isMobileDoctype)
{
    m_page.didReceiveMobileDocType(isMobileDoctype);
}

void WebChromeClient::setNeedsScrollNotifications(WebCore::Frame&, bool)
{
    notImplemented();
}

void WebChromeClient::didFinishContentChangeObserving(WebCore::Frame&, WKContentChange observedContentChange)
{
    m_page.didFinishContentChangeObserving(observedContentChange);
}

void WebChromeClient::notifyRevealedSelectionByScrollingFrame(WebCore::Frame&)
{
    m_page.didChangeSelection();
}

bool WebChromeClient::isStopping()
{
    notImplemented();
    return false;
}

void WebChromeClient::didLayout(LayoutType type)
{
    if (type == Scroll)
        m_page.didChangeSelection();
}

void WebChromeClient::didStartOverflowScroll()
{
    m_page.send(Messages::WebPageProxy::ScrollingNodeScrollWillStartScroll());
}

void WebChromeClient::didEndOverflowScroll()
{
    m_page.send(Messages::WebPageProxy::ScrollingNodeScrollDidEndScroll());
}

bool WebChromeClient::hasStablePageScaleFactor() const
{
    return m_page.hasStablePageScaleFactor();
}

void WebChromeClient::suppressFormNotifications()
{
    notImplemented();
}

void WebChromeClient::restoreFormNotifications()
{
    notImplemented();
}

void WebChromeClient::addOrUpdateScrollingLayer(WebCore::Node*, PlatformLayer*, PlatformLayer*, const WebCore::IntSize&, bool, bool)
{
    notImplemented();
}

void WebChromeClient::removeScrollingLayer(WebCore::Node*, PlatformLayer*, PlatformLayer*)
{
    notImplemented();
}

void WebChromeClient::webAppOrientationsUpdated()
{
    notImplemented();
}

void WebChromeClient::showPlaybackTargetPicker(bool hasVideo, WebCore::RouteSharingPolicy policy, const String& routingContextUID)
{
    m_page.send(Messages::WebPageProxy::ShowPlaybackTargetPicker(hasVideo, m_page.rectForElementAtInteractionLocation(), policy, routingContextUID));
}

Seconds WebChromeClient::eventThrottlingDelay()
{
    return m_page.eventThrottlingDelay();
}

int WebChromeClient::deviceOrientation() const
{
    return m_page.deviceOrientation();
}

RefPtr<Icon> WebChromeClient::createIconForFiles(const Vector<String>& filenames)
{
    if (!filenames.size())
        return nullptr;

    // FIXME: We should generate an icon showing multiple files here, if applicable. Currently, if there are multiple
    // files, we only use the first URL to generate an icon.
    NSURL *url = [NSURL fileURLWithPath:filenames[0] isDirectory:NO];
    if (!url)
        return nullptr;

    return Icon::createIconForImage(iconForFile(url).get().CGImage);
}

bool WebChromeClient::shouldUseMouseEventForSelection(const WebCore::PlatformMouseEvent& event)
{
    // In iPadOS and macCatalyst, despite getting mouse events, we still want UITextInteraction and friends to own selection gestures.
    // However, we need to allow single-clicks to set the selection, because that is how UITextInteraction is activated.
#if HAVE(UIKIT_WITH_MOUSE_SUPPORT)
    return event.clickCount() <= 1;
#else
    return true;
#endif
}

bool WebChromeClient::showDataDetectorsUIForElement(const Element& element, const Event& event)
{
    if (!event.isMouseEvent())
        return false;

    // FIXME: Ideally, we would be able to generate InteractionInformationAtPosition without re-hit-testing the element.
    auto& mouseEvent = downcast<MouseEvent>(event);
    auto request = InteractionInformationRequest { roundedIntPoint(mouseEvent.locationInRootViewCoordinates()) };
    request.includeLinkIndicator = true;
    auto positionInformation = m_page.positionInformation(request);
    m_page.send(Messages::WebPageProxy::ShowDataDetectorsUIForPositionInformation(positionInformation));
    return true;
}

} // namespace WebKit

#endif // PLATFORM(IOS_FAMILY)