C++ PluginView类代码示例

Widget* FrameLoaderClient::createPlugin(const IntSize& pluginSize, HTMLPlugInElement* element, const KURL& url, const Vector<String>& paramNames, const Vector<String>& paramValues, const String& mimeType, bool loadManually)
{
    /* Check if we want to embed a GtkWidget, fallback to plugins later */
    CString urlString = url.string().utf8();
    CString mimeTypeString = mimeType.utf8();

    ASSERT(paramNames.size() == paramValues.size());
    GOwnPtr<GHashTable> hash(g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free));
    for (unsigned i = 0; i < paramNames.size(); ++i) {
        g_hash_table_insert(hash.get(),
                            g_strdup(paramNames[i].utf8().data()),
                            g_strdup(paramValues[i].utf8().data()));
    }

    GtkWidget* gtkWidget = 0;
    g_signal_emit_by_name(getViewFromFrame(m_frame), "create-plugin-widget",
                          mimeTypeString.data(), urlString.data(), hash.get(), &gtkWidget);
    if (gtkWidget)
        return new GtkPluginWidget(gtkWidget);

    PluginView* pluginView = PluginView::create(core(m_frame), pluginSize, element, url, paramNames, paramValues, mimeType, loadManually);

    if (pluginView->status() == PluginStatusLoadedSuccessfully)
        return pluginView;

    return 0;
}

const char* NPN_UserAgent(NPP instance)
{
    PluginView* view = pluginViewForInstance(instance);

     if (!view)
         return PluginView::userAgentStatic();
 
    return view->userAgent();
}

PluginView * Plugin::createView( QWidget * parent )
{
	PluginView * pv = instantiateView( parent );
	if( pv != NULL )
	{
		pv->setModel( this );
	}
	return pv;
}

bool WebFrame::handlesPageScaleGesture() const
{
    if (!m_coreFrame->document()->isPluginDocument())
        return 0;

    PluginDocument* pluginDocument = static_cast<PluginDocument*>(m_coreFrame->document());
    PluginView* pluginView = static_cast<PluginView*>(pluginDocument->pluginWidget());
    return pluginView && pluginView->handlesPageScaleFactor();
}

bool WebFrame::requiresUnifiedScaleFactor() const
{
    if (!m_coreFrame->document()->isPluginDocument())
        return 0;

    PluginDocument* pluginDocument = static_cast<PluginDocument*>(m_coreFrame->document());
    PluginView* pluginView = static_cast<PluginView*>(pluginDocument->pluginWidget());
    return pluginView && pluginView->requiresUnifiedScaleFactor();
}

Widget* WebFrame::createJavaAppletWidget(const IntSize& pluginSize, Element* element, const KURL& /*baseURL*/, const Vector<String>& paramNames, const Vector<String>& paramValues)
{
    PluginView* pluginView = PluginView::create(core(this), pluginSize, element, KURL(), paramNames, paramValues, "application/x-java-applet", false);

    // Check if the plugin can be loaded successfully
    if (pluginView->plugin() && pluginView->plugin()->load())
        return pluginView;

    return pluginView;
}

void NPN_InvalidateRect(NPP instance, NPRect* invalidRect)
{
    PluginView* view = pluginViewForInstance(instance);
#if defined(XP_UNIX)
    // NSPluginWrapper, a plugin wrapper binary that allows running 32-bit plugins
    // on 64-bit architectures typically used in X11, will sometimes give us a null NPP here.
    if (!view)
        return;
#endif
    view->invalidateRect(invalidRect);
}

uint32 NPN_ScheduleTimer(NPP instance, uint32 interval, NPBool repeat,
                         void (*timerFunc)(NPP npp, uint32 timerID))
{
    //SAMSUNG FIX >> Crash in channel.pandora.tv
    PluginView* view = pluginViewForInstance(instance);

    if (!view)
        return 0 ;

    return view->scheduleTimer(instance, interval, repeat != 0, timerFunc);
    //SAMSUNG FIX <<
}

NPObject* PlatformBridge::pluginScriptableObject(Widget* widget)
{
#if USE(V8)
    if (!widget->isPluginView())
        return 0;

    PluginView* pluginView = static_cast<PluginView*>(widget);
    return pluginView->getNPObject();
#else
    return 0;
#endif
}

PassScriptInstance ScriptController::createScriptInstanceForWidget(Widget* widget)
{
    ASSERT(widget);

#if PLATFORM(CHROMIUM)
    if (widget->isFrameView())
        return 0;

    NPObject* npObject = ChromiumBridge::pluginScriptableObject(widget);
    if (!npObject)
        return 0;

#elif PLATFORM(ANDROID)
    if (!widget->isPluginView())
        return 0;

    PluginView* pluginView = static_cast<PluginView*>(widget);
    NPObject* npObject = pluginView->getNPObject();
    if (!npObject)
        return 0;
#endif

    // Frame Memory Management for NPObjects
    // -------------------------------------
    // NPObjects are treated differently than other objects wrapped by JS.
    // NPObjects can be created either by the browser (e.g. the main
    // window object) or by the plugin (the main plugin object
    // for a HTMLEmbedElement). Further, unlike most DOM Objects, the frame
    // is especially careful to ensure NPObjects terminate at frame teardown because
    // if a plugin leaks a reference, it could leak its objects (or the browser's objects).
    //
    // The Frame maintains a list of plugin objects (m_pluginObjects)
    // which it can use to quickly find the wrapped embed object.
    //
    // Inside the NPRuntime, we've added a few methods for registering
    // wrapped NPObjects. The purpose of the registration is because
    // javascript garbage collection is non-deterministic, yet we need to
    // be able to tear down the plugin objects immediately. When an object
    // is registered, javascript can use it. When the object is destroyed,
    // or when the object's "owning" object is destroyed, the object will
    // be un-registered, and the javascript engine must not use it.
    //
    // Inside the javascript engine, the engine can keep a reference to the
    // NPObject as part of its wrapper. However, before accessing the object
    // it must consult the _NPN_Registry.

    v8::Local<v8::Object> wrapper = createV8ObjectForNPObject(npObject, 0);

    // Track the plugin object. We've been given a reference to the object.
    m_pluginObjects.set(widget, npObject);

    return V8ScriptInstance::create(wrapper);
}

PassRefPtr<JSC::Bindings::Instance> ScriptController::createScriptInstanceForWidget(WebCore::Widget* widget)
{
    if (widget->isPluginView()) {
        PluginView* pluginView = static_cast<PluginView*>(widget);
        return pluginView->bindingInstance();
    }

    QWidget* platformWidget = widget->platformWidget();
    if (!platformWidget)
        return 0;
    return JSC::Bindings::QtInstance::getQtInstance(platformWidget, bindingRootObject(), QScriptEngine::QtOwnership);
}

void FindController::findString(const String& string, FindOptions options, unsigned maxMatchCount)
{
    PluginView* pluginView = pluginViewForFrame(m_webPage->mainFrame());
    
    bool found;
    
    if (pluginView)
        found = pluginView->findString(string, core(options), maxMatchCount);
    else
        found = m_webPage->corePage()->findString(string, core(options));

    m_webPage->drawingArea()->dispatchAfterEnsuringUpdatedScrollPosition(WTF::bind(&FindController::updateFindUIAfterPageScroll, this, found, string, options, maxMatchCount));
}

void FindController::findString(const String& string, FindOptions options, unsigned maxMatchCount)
{
    PluginView* pluginView = pluginViewForFrame(m_webPage->mainFrame());

    WebCore::FindOptions coreOptions = core(options);

    // iOS will reveal the selection through a different mechanism, and
    // we need to avoid sending the non-painted selection change to the UI process
    // so that it does not clear the selection out from under us.
#if PLATFORM(IOS)
    coreOptions = static_cast<FindOptions>(coreOptions | DoNotRevealSelection);
#endif

    willFindString();

    bool foundStringStartsAfterSelection = false;
    if (!pluginView) {
        if (Frame* selectedFrame = frameWithSelection(m_webPage->corePage())) {
            FrameSelection& fs = selectedFrame->selection();
            if (fs.selectionBounds().isEmpty()) {
                m_findMatches.clear();
                int indexForSelection;
                m_webPage->corePage()->findStringMatchingRanges(string, core(options), maxMatchCount, m_findMatches, indexForSelection);
                m_foundStringMatchIndex = indexForSelection;
                foundStringStartsAfterSelection = true;
            }
        }
    }

    bool found;
    if (pluginView)
        found = pluginView->findString(string, coreOptions, maxMatchCount);
    else
        found = m_webPage->corePage()->findString(string, coreOptions);

    if (found) {
        didFindString();

        if (!foundStringStartsAfterSelection) {
            if (options & FindOptionsBackwards)
                m_foundStringMatchIndex--;
            else
                m_foundStringMatchIndex++;
        }
    }

    RefPtr<WebPage> protectedWebPage = m_webPage;
    m_webPage->drawingArea()->dispatchAfterEnsuringUpdatedScrollPosition([protectedWebPage, found, string, options, maxMatchCount] () {
        protectedWebPage->findController().updateFindUIAfterPageScroll(found, string, options, maxMatchCount);
    });
}

void PluginKateHtmlTools::addView(Kate::MainWindow *win)
{
    // TODO: doesn't this have to be deleted?
    PluginView *view = new PluginView ();

     (void)  new KAction ( i18n("HT&ML Tag..."), /*"edit_HTML_tag",*/ ALT + Key_Minus, this,
                                SLOT( slotEditHTMLtag() ), view->actionCollection(), "edit_HTML_tag" );

    view->setInstance (new KInstance("kate"));
    view->setXMLFile( "plugins/katehtmltools/ui.rc" );
    win->guiFactory()->addClient (view);
    view->win = win;

   m_views.append (view);
}

void KatePluginHelloWorld::addView(Kate::MainWindow *win)
{
    // TODO: doesn't this have to be deleted?
    PluginView *view = new PluginView ();
             
     (void) new KAction ( i18n("Insert Hello World"), 0, this,
                      SLOT( slotInsertHello() ), view->actionCollection(),
                      "edit_insert_helloworld" );
    
    view->setInstance (new KInstance("kate"));
    view->setXMLFile("plugins/katehelloworld/ui.rc");
    win->guiFactory()->addClient (view);
    view->win = win; 
    
   m_views.append (view);
}