C++ QWebPageClient::ownerWidget方法代码示例

int screenDepthPerComponent(Widget* w)
{
#if HAVE(QT5)
    int depth = QGuiApplication::primaryScreen()->depth();
    // FIXME: Use widget's screen
    Q_UNUSED(w);
#else
    int depth = QApplication::desktop()->screen(0)->depth();
    if (w) {
        QWebPageClient* client = w->root()->hostWindow()->platformPageClient();

        if (client) {
            QWidget* view = client->ownerWidget();
            if (view)
                depth = view->depth();
        }
    }
#endif
    // An interface to establish the actual number of bits per color
    // doesn't exist in Qt, or probably at all, so use common-sense
    // values for each screen depth and assume RGB/RGBA where appropriate.
    // Per http://www.w3.org/TR/css3-mediaqueries/#color, 'If different color
    // components are represented by different number of bits, the smallest
    // number is used.'
    switch (depth) {
    case 8:
        return 2;
    case 32:
        return 8;
    default:
        return depth / 3;
    }
}

bool PluginView::platformGetValue(NPNVariable variable, void* value, NPError* result)
{
    switch (variable) {
    case NPNVxDisplay:
        *(void **)value = QX11Info::display();
        *result = NPERR_NO_ERROR;
        return true;

    case NPNVxtAppContext:
        *result = NPERR_GENERIC_ERROR;
        return true;

    case NPNVnetscapeWindow: {
        void* w = reinterpret_cast<void*>(value);
        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
        *((XID *)w) = client ? client->ownerWidget()->window()->winId() : 0;
        *result = NPERR_NO_ERROR;
        return true;
    }

    case NPNVToolkit:
        if (m_plugin->quirks().contains(PluginQuirkRequiresGtkToolKit)) {
            *((uint32_t *)value) = 2;
            *result = NPERR_NO_ERROR;
            return true;
        }
        return false;

    default:
        return false;
    }
}

void PluginView::initXEvent(XEvent* xEvent)
{
    memset(xEvent, 0, sizeof(XEvent));

    QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
    QWidget* ownerWidget = client ? client->ownerWidget() : 0;
    setSharedXEventFields(xEvent, ownerWidget);
}

IntPoint ChromeClientQt::screenToRootView(const IntPoint& point) const
{
    QWebPageClient* pageClient = platformPageClient();
    if (!pageClient)
        return point;

    QWidget* ownerWidget = pageClient->ownerWidget();
    if (!ownerWidget)
        return point;

    return ownerWidget->mapFromGlobal(point);
}

int screenDepthPerComponent(Widget* w)
{
    if (w) {
        QWebPageClient* client = w->root()->hostWindow()->platformPageClient();

        if (client) {
            QWidget* view = client->ownerWidget();
            if (view)
                return view->depth();
        }
    }
    return QApplication::desktop()->screen(0)->depth();
}

void PopupMenu::show(const IntRect& r, FrameView* v, int index)
{
    QWebPageClient* client = v->hostWindow()->platformPageClient();
    populate(r);
    QRect rect = r;
    rect.moveTopLeft(v->contentsToWindow(r.topLeft()));
    rect.setHeight(m_popup->sizeHint().height());

    if (QGraphicsView* view = qobject_cast<QGraphicsView*>(client->ownerWidget())) {
        if (!m_proxy) {
            m_proxy = new QGraphicsProxyWidget(qobject_cast<QGraphicsWebView*>(client->pluginParent()));
            m_proxy->setWidget(m_popup);
        } else
            m_proxy->setVisible(true);
        m_proxy->setGeometry(rect);
    } else {
        m_popup->setParent(client->ownerWidget());
        m_popup->setGeometry(rect);
    }

    m_popup->setCurrentIndex(index);
    m_popup->exec();
}

IntRect ChromeClientQt::rootViewToScreen(const IntRect& rect) const
{
    QWebPageClient* pageClient = platformPageClient();
    if (!pageClient)
        return rect;

    QWidget* ownerWidget = pageClient->ownerWidget();
    if (!ownerWidget)
       return rect;

    QRect screenRect(rect);
    screenRect.translate(ownerWidget->mapToGlobal(QPoint(0, 0)));

    return screenRect;
}

IntRect ChromeClientQt::windowResizerRect() const
{
#if defined(Q_WS_MAC)
    if (!m_webPage)
        return IntRect();

    QWebPageClient* pageClient = platformPageClient();
    if (!pageClient)
        return IntRect();

    QWidget* ownerWidget = pageClient->ownerWidget();
    if (!ownerWidget)
        return IntRect();

    QWidget* topLevelWidget = ownerWidget->window();
    QRect topLevelGeometry(topLevelWidget->geometry());

    // There's no API in Qt to query for the size of the resizer, so we assume
    // it has the same width and height as the scrollbar thickness.
    int scollbarThickness = ScrollbarTheme::theme()->scrollbarThickness();

    // There's no API in Qt to query for the position of the resizer. Sometimes
    // it's drawn by the system, and sometimes it's a QSizeGrip. For RTL locales
    // it might even be on the lower left side of the window, but in WebKit we
    // always draw scrollbars on the right hand side, so we assume this to be the
    // location when computing the resize rect to reserve for WebKit.
    QPoint resizeCornerTopLeft = ownerWidget->mapFrom(topLevelWidget,
            QPoint(topLevelGeometry.width(), topLevelGeometry.height())
            - QPoint(scollbarThickness, scollbarThickness));

    QRect resizeCornerRect = QRect(resizeCornerTopLeft, QSize(scollbarThickness, scollbarThickness));
    return resizeCornerRect.intersected(pageClient->geometryRelativeToOwnerWidget());
#else
    return IntRect();
#endif
}

bool PluginView::platformStart()
{
    ASSERT(m_isStarted);
    ASSERT(m_status == PluginStatusLoadedSuccessfully);

    if (m_plugin->pluginFuncs()->getvalue) {
        PluginView::setCurrentPluginView(this);
        JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
        setCallingPlugin(true);
        m_plugin->pluginFuncs()->getvalue(m_instance, NPPVpluginNeedsXEmbed, &m_needsXEmbed);
        setCallingPlugin(false);
        PluginView::setCurrentPluginView(0);
    }

    if (m_isWindowed) {
        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
        if (m_needsXEmbed && client) {
            setPlatformWidget(new PluginContainerQt(this, client->ownerWidget()));
            // sync our XEmbed container window creation before sending the xid to plugins.
            QApplication::syncX();
        } else {
            notImplemented();
            m_status = PluginStatusCanNotLoadPlugin;
            return false;
        }
    } else {
        setPlatformWidget(0);
        m_pluginDisplay = getPluginDisplay();
    }

    show();

    NPSetWindowCallbackStruct* wsi = new NPSetWindowCallbackStruct();
    wsi->type = 0;

    if (m_isWindowed) {
        const QX11Info* x11Info = &platformPluginWidget()->x11Info();

        wsi->display = x11Info->display();
        wsi->visual = (Visual*)x11Info->visual();
        wsi->depth = x11Info->depth();
        wsi->colormap = x11Info->colormap();

        m_npWindow.type = NPWindowTypeWindow;
        m_npWindow.window = (void*)platformPluginWidget()->winId();
        m_npWindow.width = -1;
        m_npWindow.height = -1;
    } else {
        const QX11Info* x11Info = &QApplication::desktop()->x11Info();

        if (x11Info->depth() == 32 || !m_plugin->quirks().contains(PluginQuirkRequiresDefaultScreenDepth)) {
            getVisualAndColormap(32, &m_visual, &m_colormap);
            wsi->depth = 32;
        }

        if (!m_visual) {
            getVisualAndColormap(x11Info->depth(), &m_visual, &m_colormap);
            wsi->depth = x11Info->depth();
        }

        wsi->display = x11Info->display();
        wsi->visual = m_visual;
        wsi->colormap = m_colormap;

        m_npWindow.type = NPWindowTypeDrawable;
        m_npWindow.window = 0; // Not used?
        m_npWindow.x = 0;
        m_npWindow.y = 0;
        m_npWindow.width = -1;
        m_npWindow.height = -1;
    }

    m_npWindow.ws_info = wsi;

    if (!(m_plugin->quirks().contains(PluginQuirkDeferFirstSetWindowCall))) {
        updatePluginWidget();
        setNPWindowIfNeeded();
    }

    return true;
}

NPError PluginView::getValue(NPNVariable variable, void* value)
{
    LOG(Plugins, "PluginView::getValue(%s)", prettyNameForNPNVariable(variable).data());

    switch (variable) {
    case NPNVxDisplay:
        *(void **)value = QX11Info::display();
        return NPERR_NO_ERROR;

    case NPNVxtAppContext:
        return NPERR_GENERIC_ERROR;

#if ENABLE(NETSCAPE_PLUGIN_API)
    case NPNVWindowNPObject: {
        if (m_isJavaScriptPaused)
            return NPERR_GENERIC_ERROR;

        NPObject* windowScriptObject = m_parentFrame->script()->windowScriptNPObject();

        // Return value is expected to be retained, as described here: <http://www.mozilla.org/projects/plugin/npruntime.html>
        if (windowScriptObject)
            _NPN_RetainObject(windowScriptObject);

        void** v = (void**)value;
        *v = windowScriptObject;

        return NPERR_NO_ERROR;
    }

    case NPNVPluginElementNPObject: {
        if (m_isJavaScriptPaused)
            return NPERR_GENERIC_ERROR;

        NPObject* pluginScriptObject = 0;

        if (m_element->hasTagName(appletTag) || m_element->hasTagName(embedTag) || m_element->hasTagName(objectTag))
            pluginScriptObject = static_cast<HTMLPlugInElement*>(m_element)->getNPObject();

        // Return value is expected to be retained, as described here: <http://www.mozilla.org/projects/plugin/npruntime.html>
        if (pluginScriptObject)
            _NPN_RetainObject(pluginScriptObject);

        void** v = (void**)value;
        *v = pluginScriptObject;

        return NPERR_NO_ERROR;
    }
#endif

    case NPNVnetscapeWindow: {
        void* w = reinterpret_cast<void*>(value);
        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
        *((XID *)w) = client ? client->ownerWidget()->window()->winId() : 0;
        return NPERR_NO_ERROR;
    }

    case NPNVToolkit:
        if (m_plugin->quirks().contains(PluginQuirkRequiresGtkToolKit)) {
            *((uint32 *)value) = 2;
            return NPERR_NO_ERROR;
        }
        // fall through
    default:
        return getValueStatic(variable, value);
    }
}

bool PluginView::platformStart()
{
    ASSERT(m_isStarted);
    ASSERT(m_status == PluginStatusLoadedSuccessfully);
    
    show();

    if (m_isWindowed) {
        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
        QGraphicsProxyWidget* proxy = 0;
        if (QGraphicsWebView *webView = qobject_cast<QGraphicsWebView*>(client->pluginParent()))
            proxy = new QGraphicsProxyWidget(webView);

        PluginContainerSymbian* container = new PluginContainerSymbian(this, proxy ? 0 : client->ownerWidget(), proxy);
        setPlatformWidget(container);
        if (proxy)
            proxy->setWidget(container);
        
        m_npWindow.type = NPWindowTypeWindow;
        m_npWindow.window = (void*)platformPluginWidget();

    } else {
        setPlatformWidget(0);
        m_npWindow.type = NPWindowTypeDrawable;
        m_npWindow.window = 0; // Not used?
    }    
    updatePluginWidget();
    setNPWindowIfNeeded();

    if (qtwebkit_page_plugin_created)
        qtwebkit_page_plugin_created(QWebFramePrivate::kit(m_parentFrame.get()), m_instance, (void*)(m_plugin->pluginFuncs()));

    return true;
}

bool PluginView::platformStart()
{
    ASSERT(m_isStarted);
    ASSERT(m_status == PluginStatusLoadedSuccessfully);

    if (m_plugin->pluginFuncs()->getvalue) {
        PluginView::setCurrentPluginView(this);
#if USE(JSC)
        JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
#endif
        setCallingPlugin(true);
        m_plugin->pluginFuncs()->getvalue(m_instance, NPPVpluginNeedsXEmbed, &m_needsXEmbed);
        setCallingPlugin(false);
        PluginView::setCurrentPluginView(0);
    }

    if (m_isWindowed) {
        QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient();
        if (m_needsXEmbed && client) {
            setPlatformWidget(new PluginContainerQt(this, client->ownerWidget()));
            // sync our XEmbed container window creation before sending the xid to plugins.
            QApplication::syncX();
        } else {
            notImplemented();
            m_status = PluginStatusCanNotLoadPlugin;
            return false;
        }
    } else {
        setPlatformWidget(0);
        m_pluginDisplay = getPluginDisplay();

#if USE(ACCELERATED_COMPOSITING) && !USE(TEXTURE_MAPPER)
        if (shouldUseAcceleratedCompositing()) {
            m_platformLayer = adoptPtr(new PluginGraphicsLayerQt(this));
            // Trigger layer computation in RenderLayerCompositor
            m_element->setNeedsStyleRecalc(SyntheticStyleChange);
        }
#endif
    }

    // If the width and the height are not zero we show the PluginView.
    if (!frameRect().isEmpty())
        show();

    NPSetWindowCallbackStruct* wsi = new NPSetWindowCallbackStruct();
    wsi->type = 0;

    if (m_isWindowed) {
        const QX11Info* x11Info = &static_cast<QWidget*>(platformPluginWidget())->x11Info();

        wsi->display = x11Info->display();
        wsi->visual = (Visual*)x11Info->visual();
        wsi->depth = x11Info->depth();
        wsi->colormap = x11Info->colormap();

        m_npWindow.type = NPWindowTypeWindow;
        m_npWindow.window = (void*)static_cast<QWidget*>(platformPluginWidget())->winId();
        m_npWindow.width = -1;
        m_npWindow.height = -1;
    } else {
        const QX11Info* x11Info = &QApplication::desktop()->x11Info();

        if (x11Info->depth() == 32 || !m_plugin->quirks().contains(PluginQuirkRequiresDefaultScreenDepth)) {
            getVisualAndColormap(32, &m_visual, &m_colormap);
            wsi->depth = 32;
        }

        if (!m_visual) {
            getVisualAndColormap(x11Info->depth(), &m_visual, &m_colormap);
            wsi->depth = x11Info->depth();
        }

        wsi->display = x11Info->display();
        wsi->visual = m_visual;
        wsi->colormap = m_colormap;

        m_npWindow.type = NPWindowTypeDrawable;
        m_npWindow.window = 0; // Not used?
        m_npWindow.x = 0;
        m_npWindow.y = 0;
        m_npWindow.width = -1;
        m_npWindow.height = -1;
    }

    m_npWindow.ws_info = wsi;

    if (!(m_plugin->quirks().contains(PluginQuirkDeferFirstSetWindowCall))) {
        updatePluginWidget();
        setNPWindowIfNeeded();
    }

    return true;
}