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      1 /*
      2  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
      3  * Copyright (C) 2008 Collabora Ltd. All rights reserved.
      4  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
      5  * Copyright (C) 2009 Girish Ramakrishnan <girish (at) forwardbias.in>
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     20  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     21  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     22  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     23  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     24  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef __LP64__
     30 
     31 #include "config.h"
     32 #include "PluginView.h"
     33 
     34 #include "Bridge.h"
     35 #include "Document.h"
     36 #include "DocumentLoader.h"
     37 #include "Element.h"
     38 #include "EventNames.h"
     39 #include "FocusController.h"
     40 #include "FrameLoader.h"
     41 #include "FrameLoadRequest.h"
     42 #include "FrameTree.h"
     43 #include "Frame.h"
     44 #include "FrameView.h"
     45 #include "GraphicsContext.h"
     46 #include "HostWindow.h"
     47 #include "HTMLNames.h"
     48 #include "HTMLPlugInElement.h"
     49 #include "Image.h"
     50 #include "JSDOMBinding.h"
     51 #include "KeyboardEvent.h"
     52 #include "MouseEvent.h"
     53 #include "NotImplemented.h"
     54 #include "Page.h"
     55 #include "PlatformMouseEvent.h"
     56 #include "PlatformKeyboardEvent.h"
     57 #include "PluginDebug.h"
     58 #include "PluginPackage.h"
     59 #include "PluginMainThreadScheduler.h"
     60 #include "RenderLayer.h"
     61 #include "ScriptController.h"
     62 #include "Settings.h"
     63 #include "npruntime_impl.h"
     64 #include "runtime_root.h"
     65 #include <runtime/JSLock.h>
     66 #include <runtime/JSValue.h>
     67 #include <wtf/RetainPtr.h>
     68 
     69 
     70 using JSC::ExecState;
     71 using JSC::Interpreter;
     72 using JSC::JSLock;
     73 using JSC::JSObject;
     74 using JSC::JSValue;
     75 using JSC::UString;
     76 
     77 #if PLATFORM(QT)
     78 #include <QWidget>
     79 #include <QKeyEvent>
     80 #include <QPainter>
     81 #include "QWebPageClient.h"
     82 QT_BEGIN_NAMESPACE
     83 #if QT_VERSION < 0x040500
     84 extern Q_GUI_EXPORT WindowPtr qt_mac_window_for(const QWidget* w);
     85 #else
     86 extern Q_GUI_EXPORT OSWindowRef qt_mac_window_for(const QWidget* w);
     87 #endif
     88 QT_END_NAMESPACE
     89 #endif
     90 
     91 #if PLATFORM(WX)
     92 #include <wx/defs.h>
     93 #include <wx/wx.h>
     94 #endif
     95 
     96 using std::min;
     97 
     98 using namespace WTF;
     99 
    100 namespace WebCore {
    101 
    102 using namespace HTMLNames;
    103 
    104 static int modifiersForEvent(UIEventWithKeyState *event);
    105 
    106 static inline WindowRef nativeWindowFor(PlatformWidget widget)
    107 {
    108 #if PLATFORM(QT)
    109     if (widget)
    110         return static_cast<WindowRef>(qt_mac_window_for(widget));
    111 #endif
    112 #if PLATFORM(WX)
    113     if (widget)
    114         return (WindowRef)widget->MacGetTopLevelWindowRef();
    115 #endif
    116     return 0;
    117 }
    118 
    119 static inline CGContextRef cgHandleFor(PlatformWidget widget)
    120 {
    121 #if PLATFORM(QT)
    122     if (widget)
    123         return (CGContextRef)widget->macCGHandle();
    124 #endif
    125 #if PLATFORM(WX)
    126     if (widget)
    127         return (CGContextRef)widget->MacGetCGContextRef();
    128 #endif
    129     return 0;
    130 }
    131 
    132 static inline IntPoint topLevelOffsetFor(PlatformWidget widget)
    133 {
    134 #if PLATFORM(QT)
    135     if (widget) {
    136         PlatformWidget topLevel = widget->window();
    137         return widget->mapTo(topLevel, QPoint(0, 0)) + topLevel->geometry().topLeft() - topLevel->pos();
    138     }
    139 #endif
    140 #if PLATFORM(WX)
    141     if (widget) {
    142         PlatformWidget toplevel = wxGetTopLevelParent(widget);
    143         return toplevel->ScreenToClient(widget->GetScreenPosition());
    144     }
    145 #endif
    146     return IntPoint();
    147 }
    148 
    149 // --------------- Lifetime management -----------------
    150 
    151 bool PluginView::platformStart()
    152 {
    153     ASSERT(m_isStarted);
    154     ASSERT(m_status == PluginStatusLoadedSuccessfully);
    155 
    156     if (m_drawingModel == NPDrawingModel(-1)) {
    157         // We default to QuickDraw, even though we don't support it,
    158         // since that's what Safari does, and some plugins expect this
    159         // behavior and never set the drawing model explicitly.
    160 #ifndef NP_NO_QUICKDRAW
    161         m_drawingModel = NPDrawingModelQuickDraw;
    162 #else
    163         // QuickDraw not available, so we have to default to CoreGraphics
    164         m_drawingModel = NPDrawingModelCoreGraphics;
    165 #endif
    166     }
    167 
    168     if (m_eventModel == NPEventModel(-1)) {
    169         // If the plug-in did not specify an event model
    170         // we default to Carbon, when it is available.
    171 #ifndef NP_NO_CARBON
    172         m_eventModel = NPEventModelCarbon;
    173 #else
    174         m_eventModel = NPEventModelCocoa;
    175 #endif
    176     }
    177 
    178     // Gracefully handle unsupported drawing or event models. We can do this
    179     // now since the drawing and event model can only be set during NPP_New.
    180     NPBool eventModelSupported, drawingModelSupported;
    181     if (getValueStatic(NPNVariable(NPNVsupportsCarbonBool + m_eventModel), &eventModelSupported) != NPERR_NO_ERROR
    182             || !eventModelSupported) {
    183         m_status = PluginStatusCanNotLoadPlugin;
    184         LOG(Plugins, "Plug-in '%s' uses unsupported event model %s",
    185                 m_plugin->name().utf8().data(), prettyNameForEventModel(m_eventModel));
    186         return false;
    187     }
    188 
    189     if (getValueStatic(NPNVariable(NPNVsupportsQuickDrawBool + m_drawingModel), &drawingModelSupported) != NPERR_NO_ERROR
    190             || !drawingModelSupported) {
    191         m_status = PluginStatusCanNotLoadPlugin;
    192         LOG(Plugins, "Plug-in '%s' uses unsupported drawing model %s",
    193                 m_plugin->name().utf8().data(), prettyNameForDrawingModel(m_drawingModel));
    194         return false;
    195     }
    196 
    197 #if PLATFORM(QT)
    198     // Set the platformPluginWidget only in the case of QWebView so that the context menu appears in the right place.
    199     // In all other cases, we use off-screen rendering
    200     if (QWebPageClient* client = m_parentFrame->view()->hostWindow()->platformPageClient()) {
    201         if (QWidget* widget = qobject_cast<QWidget*>(client->pluginParent()))
    202             setPlatformPluginWidget(widget);
    203     }
    204 #endif
    205 #if PLATFORM(WX)
    206     if (wxWindow* widget = m_parentFrame->view()->hostWindow()->platformPageClient())
    207         setPlatformPluginWidget(widget);
    208 #endif
    209 
    210     // Create a fake window relative to which all events will be sent when using offscreen rendering
    211     if (!platformPluginWidget()) {
    212         // Make the default size really big. It is unclear why this is required but with a smaller size, mouse move
    213         // events don't get processed. Resizing the fake window to flash's size doesn't help.
    214         ::Rect windowBounds = { 0, 0, 1000, 1000 };
    215         CreateNewWindow(kDocumentWindowClass, kWindowStandardDocumentAttributes, &windowBounds, &m_fakeWindow);
    216         // Flash requires the window to be hilited to process mouse move events.
    217         HiliteWindow(m_fakeWindow, true);
    218     }
    219 
    220     show();
    221 
    222     return true;
    223 }
    224 
    225 void PluginView::platformDestroy()
    226 {
    227     if (platformPluginWidget())
    228         setPlatformPluginWidget(0);
    229     else {
    230         CGContextRelease(m_contextRef);
    231         if (m_fakeWindow)
    232             DisposeWindow(m_fakeWindow);
    233     }
    234 }
    235 
    236 // Used before the plugin view has been initialized properly, and as a
    237 // fallback for variables that do not require a view to resolve.
    238 NPError PluginView::getValueStatic(NPNVariable variable, void* value)
    239 {
    240     LOG(Plugins, "PluginView::getValueStatic(%s)", prettyNameForNPNVariable(variable).data());
    241 
    242     switch (variable) {
    243     case NPNVToolkit:
    244         *static_cast<uint32*>(value) = 0;
    245         return NPERR_NO_ERROR;
    246 
    247     case NPNVjavascriptEnabledBool:
    248         *static_cast<NPBool*>(value) = true;
    249         return NPERR_NO_ERROR;
    250 
    251 #ifndef NP_NO_CARBON
    252     case NPNVsupportsCarbonBool:
    253         *static_cast<NPBool*>(value) = true;
    254         return NPERR_NO_ERROR;
    255 
    256 #endif
    257     case NPNVsupportsCocoaBool:
    258         *static_cast<NPBool*>(value) = false;
    259         return NPERR_NO_ERROR;
    260 
    261     // CoreGraphics is the only drawing model we support
    262     case NPNVsupportsCoreGraphicsBool:
    263         *static_cast<NPBool*>(value) = true;
    264         return NPERR_NO_ERROR;
    265 
    266 #ifndef NP_NO_QUICKDRAW
    267     // QuickDraw is deprecated in 10.5 and not supported on 64-bit
    268     case NPNVsupportsQuickDrawBool:
    269 #endif
    270     case NPNVsupportsOpenGLBool:
    271     case NPNVsupportsCoreAnimationBool:
    272         *static_cast<NPBool*>(value) = false;
    273         return NPERR_NO_ERROR;
    274 
    275     default:
    276         return NPERR_GENERIC_ERROR;
    277     }
    278 }
    279 
    280 // Used only for variables that need a view to resolve
    281 NPError PluginView::getValue(NPNVariable variable, void* value)
    282 {
    283     LOG(Plugins, "PluginView::getValue(%s)", prettyNameForNPNVariable(variable).data());
    284 
    285     switch (variable) {
    286     case NPNVWindowNPObject: {
    287         if (m_isJavaScriptPaused)
    288             return NPERR_GENERIC_ERROR;
    289 
    290         NPObject* windowScriptObject = m_parentFrame->script()->windowScriptNPObject();
    291 
    292         // Return value is expected to be retained, as described in
    293         // <http://www.mozilla.org/projects/plugin/npruntime.html>
    294         if (windowScriptObject)
    295             _NPN_RetainObject(windowScriptObject);
    296 
    297         void** v = (void**)value;
    298         *v = windowScriptObject;
    299 
    300         return NPERR_NO_ERROR;
    301     }
    302 
    303     case NPNVPluginElementNPObject: {
    304         if (m_isJavaScriptPaused)
    305             return NPERR_GENERIC_ERROR;
    306 
    307         NPObject* pluginScriptObject = 0;
    308 
    309         if (m_element->hasTagName(appletTag) || m_element->hasTagName(embedTag) || m_element->hasTagName(objectTag))
    310             pluginScriptObject = static_cast<HTMLPlugInElement*>(m_element)->getNPObject();
    311 
    312         // Return value is expected to be retained, as described in
    313         // <http://www.mozilla.org/projects/plugin/npruntime.html>
    314         if (pluginScriptObject)
    315             _NPN_RetainObject(pluginScriptObject);
    316 
    317         void** v = (void**)value;
    318         *v = pluginScriptObject;
    319 
    320         return NPERR_NO_ERROR;
    321     }
    322 
    323     default:
    324         return getValueStatic(variable, value);
    325     }
    326 
    327 }
    328 void PluginView::setParent(ScrollView* parent)
    329 {
    330     LOG(Plugins, "PluginView::setParent(%p)", parent);
    331 
    332     Widget::setParent(parent);
    333 
    334     if (parent)
    335         init();
    336 }
    337 
    338 // -------------- Geometry and painting ----------------
    339 
    340 void PluginView::show()
    341 {
    342     LOG(Plugins, "PluginView::show()");
    343 
    344     setSelfVisible(true);
    345 
    346     Widget::show();
    347 }
    348 
    349 void PluginView::hide()
    350 {
    351     LOG(Plugins, "PluginView::hide()");
    352 
    353     setSelfVisible(false);
    354 
    355     Widget::hide();
    356 }
    357 
    358 void PluginView::setFocus()
    359 {
    360     LOG(Plugins, "PluginView::setFocus()");
    361 
    362     if (platformPluginWidget())
    363 #if PLATFORM(QT)
    364        platformPluginWidget()->setFocus(Qt::OtherFocusReason);
    365 #else
    366         platformPluginWidget()->SetFocus();
    367 #endif
    368    else
    369        Widget::setFocus();
    370 
    371     // TODO: Also handle and pass on blur events (focus lost)
    372 
    373     EventRecord record;
    374     record.what = getFocusEvent;
    375     record.message = 0;
    376     record.when = TickCount();
    377     record.where = globalMousePosForPlugin();
    378     record.modifiers = GetCurrentKeyModifiers();
    379 
    380     if (!dispatchNPEvent(record))
    381         LOG(Events, "PluginView::setFocus(): Get-focus event not accepted");
    382 }
    383 
    384 void PluginView::setParentVisible(bool visible)
    385 {
    386     if (isParentVisible() == visible)
    387         return;
    388 
    389     Widget::setParentVisible(visible);
    390 }
    391 
    392 void PluginView::setNPWindowRect(const IntRect&)
    393 {
    394     setNPWindowIfNeeded();
    395 }
    396 
    397 void PluginView::setNPWindowIfNeeded()
    398 {
    399     if (!m_isStarted || !parent() || !m_plugin->pluginFuncs()->setwindow)
    400         return;
    401 
    402     CGContextRef newContextRef = 0;
    403     WindowRef newWindowRef = 0;
    404     if (platformPluginWidget()) {
    405         newContextRef = cgHandleFor(platformPluginWidget());
    406         newWindowRef = nativeWindowFor(platformPluginWidget());
    407         m_npWindow.type = NPWindowTypeWindow;
    408     } else {
    409         newContextRef = m_contextRef;
    410         newWindowRef = m_fakeWindow;
    411         m_npWindow.type = NPWindowTypeDrawable;
    412     }
    413 
    414     if (!newContextRef || !newWindowRef)
    415         return;
    416 
    417     m_npWindow.window = (void*)&m_npCgContext;
    418     m_npCgContext.window = newWindowRef;
    419     m_npCgContext.context = newContextRef;
    420 
    421     m_npWindow.x = m_windowRect.x();
    422     m_npWindow.y = m_windowRect.y();
    423     m_npWindow.width = m_windowRect.width();
    424     m_npWindow.height = m_windowRect.height();
    425 
    426     // TODO: (also clip against scrollbars, etc.)
    427     m_npWindow.clipRect.left = max(0, m_windowRect.x());
    428     m_npWindow.clipRect.top = max(0, m_windowRect.y());
    429     m_npWindow.clipRect.right = m_windowRect.x() + m_windowRect.width();
    430     m_npWindow.clipRect.bottom = m_windowRect.y() + m_windowRect.height();
    431 
    432     LOG(Plugins, "PluginView::setNPWindowIfNeeded(): window=%p, context=%p,"
    433             " window.x:%ld window.y:%ld window.width:%d window.height:%d window.clipRect size:%dx%d",
    434             newWindowRef, newContextRef, m_npWindow.x, m_npWindow.y, m_npWindow.width, m_npWindow.height,
    435             m_npWindow.clipRect.right - m_npWindow.clipRect.left, m_npWindow.clipRect.bottom - m_npWindow.clipRect.top);
    436 
    437     PluginView::setCurrentPluginView(this);
    438     JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
    439     setCallingPlugin(true);
    440     m_plugin->pluginFuncs()->setwindow(m_instance, &m_npWindow);
    441     setCallingPlugin(false);
    442     PluginView::setCurrentPluginView(0);
    443 }
    444 
    445 void PluginView::updatePluginWidget()
    446 {
    447     if (!parent())
    448        return;
    449 
    450     ASSERT(parent()->isFrameView());
    451     FrameView* frameView = static_cast<FrameView*>(parent());
    452 
    453     IntRect oldWindowRect = m_windowRect;
    454     IntRect oldClipRect = m_clipRect;
    455 
    456     m_windowRect = frameView->contentsToWindow(frameRect());
    457     IntPoint offset = topLevelOffsetFor(platformPluginWidget());
    458     m_windowRect.move(offset.x(), offset.y());
    459 
    460     if (!platformPluginWidget()) {
    461         if (m_windowRect.size() != oldWindowRect.size()) {
    462             CGContextRelease(m_contextRef);
    463 #if PLATFORM(QT)
    464             m_pixmap = QPixmap(m_windowRect.size());
    465             m_pixmap.fill(Qt::transparent);
    466             m_contextRef = qt_mac_cg_context(&m_pixmap);
    467 #endif
    468         }
    469     }
    470 
    471     m_clipRect = windowClipRect();
    472     m_clipRect.move(-m_windowRect.x(), -m_windowRect.y());
    473 
    474     if (platformPluginWidget() && (m_windowRect != oldWindowRect || m_clipRect != oldClipRect))
    475         setNPWindowIfNeeded();
    476 }
    477 
    478 void PluginView::paint(GraphicsContext* context, const IntRect& rect)
    479 {
    480     if (!m_isStarted || m_status != PluginStatusLoadedSuccessfully) {
    481         paintMissingPluginIcon(context, rect);
    482         return;
    483     }
    484 
    485     if (context->paintingDisabled())
    486         return;
    487 
    488     setNPWindowIfNeeded();
    489 
    490     CGContextRef cgContext = m_npCgContext.context;
    491     if (!cgContext)
    492         return;
    493 
    494     CGContextSaveGState(cgContext);
    495     if (platformPluginWidget()) {
    496         IntPoint offset = frameRect().location();
    497         CGContextTranslateCTM(cgContext, offset.x(), offset.y());
    498     }
    499 
    500     IntRect targetRect(frameRect());
    501     targetRect.intersects(rect);
    502 
    503     // clip the context so that plugin only updates the interested area.
    504     CGRect r;
    505     r.origin.x = targetRect.x() - frameRect().x();
    506     r.origin.y = targetRect.y() - frameRect().y();
    507     r.size.width = targetRect.width();
    508     r.size.height = targetRect.height();
    509     CGContextClipToRect(cgContext, r);
    510 
    511     if (!platformPluginWidget() && m_isTransparent) { // clean the pixmap in transparent mode
    512 #if PLATFORM(QT)
    513         QPainter painter(&m_pixmap);
    514         painter.setCompositionMode(QPainter::CompositionMode_Clear);
    515         painter.fillRect(QRectF(r.origin.x, r.origin.y, r.size.width, r.size.height), Qt::transparent);
    516 #endif
    517     }
    518 
    519     EventRecord event;
    520     event.what = updateEvt;
    521     event.message = (long unsigned int)m_npCgContext.window;
    522     event.when = TickCount();
    523     event.where.h = 0;
    524     event.where.v = 0;
    525     event.modifiers = GetCurrentKeyModifiers();
    526 
    527     if (!dispatchNPEvent(event))
    528         LOG(Events, "PluginView::paint(): Paint event not accepted");
    529 
    530     CGContextRestoreGState(cgContext);
    531 
    532     if (!platformPluginWidget()) {
    533 #if PLATFORM(QT)
    534         QPainter* painter = context->platformContext();
    535         painter->drawPixmap(targetRect.x(), targetRect.y(), m_pixmap,
    536                             targetRect.x() - frameRect().x(), targetRect.y() - frameRect().y(), targetRect.width(), targetRect.height());
    537 #endif
    538     }
    539 }
    540 
    541 void PluginView::invalidateRect(const IntRect& rect)
    542 {
    543     if (platformPluginWidget())
    544 #if PLATFORM(QT)
    545         platformPluginWidget()->update(convertToContainingWindow(rect));
    546 #else
    547         platformPluginWidget()->RefreshRect(convertToContainingWindow(rect));
    548 #endif
    549     else
    550         invalidateWindowlessPluginRect(rect);
    551 }
    552 
    553 void PluginView::invalidateRect(NPRect* rect)
    554 {
    555     IntRect r(rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top);
    556     invalidateRect(r);
    557 }
    558 
    559 void PluginView::invalidateRegion(NPRegion region)
    560 {
    561     // TODO: optimize
    562     invalidate();
    563 }
    564 
    565 void PluginView::forceRedraw()
    566 {
    567     notImplemented();
    568 }
    569 
    570 
    571 // ----------------- Event handling --------------------
    572 
    573 void PluginView::handleMouseEvent(MouseEvent* event)
    574 {
    575     if (!m_isStarted)
    576         return;
    577 
    578     EventRecord record;
    579 
    580     if (event->type() == eventNames().mousemoveEvent) {
    581         record.what = nullEvent;
    582     } else if (event->type() == eventNames().mouseoverEvent) {
    583         record.what = adjustCursorEvent;
    584     } else if (event->type() == eventNames().mouseoutEvent) {
    585         record.what = adjustCursorEvent;
    586     } else if (event->type() == eventNames().mousedownEvent) {
    587         record.what = mouseDown;
    588         // The plugin needs focus to receive keyboard events
    589         if (Page* page = m_parentFrame->page())
    590             page->focusController()->setFocusedFrame(m_parentFrame);
    591         m_parentFrame->document()->setFocusedNode(m_element);
    592     } else if (event->type() == eventNames().mouseupEvent) {
    593         record.what = mouseUp;
    594     } else {
    595         return;
    596     }
    597 
    598     if (platformPluginWidget()) {
    599         record.where = globalMousePosForPlugin();
    600     } else {
    601         if (event->button() == 2) {
    602             // always pass the global position for right-click since Flash uses it to position the context menu
    603             record.where = globalMousePosForPlugin();
    604         } else {
    605             IntPoint postZoomPos = roundedIntPoint(m_element->renderer()->absoluteToLocal(event->absoluteLocation()));
    606             record.where.h = postZoomPos.x() + m_windowRect.x();
    607             // The number 22 is the height of the title bar. As to why it figures in the calculation below
    608             // is left as an exercise to the reader :-)
    609             record.where.v = postZoomPos.y() + m_windowRect.y() - 22;
    610         }
    611     }
    612     record.modifiers = modifiersForEvent(event);
    613 
    614     if (!event->buttonDown())
    615         record.modifiers |= btnState;
    616 
    617     if (event->button() == 2)
    618         record.modifiers |= controlKey;
    619 
    620     if (!dispatchNPEvent(record)) {
    621         if (record.what == adjustCursorEvent)
    622             return; // Signals that the plugin wants a normal cursor
    623 
    624         LOG(Events, "PluginView::handleMouseEvent(): Mouse event type %d at %d,%d not accepted",
    625                 record.what, record.where.h, record.where.v);
    626     } else {
    627         event->setDefaultHandled();
    628     }
    629 }
    630 
    631 void PluginView::handleKeyboardEvent(KeyboardEvent* event)
    632 {
    633     if (!m_isStarted)
    634         return;
    635 
    636     LOG(Plugins, "PluginView::handleKeyboardEvent() ----------------- ");
    637 
    638     LOG(Plugins, "PV::hKE(): KE.keyCode: 0x%02X, KE.charCode: %d",
    639             event->keyCode(), event->charCode());
    640 
    641     EventRecord record;
    642 
    643     if (event->type() == eventNames().keydownEvent) {
    644         // This event is the result of a PlatformKeyboardEvent::KeyDown which
    645         // was disambiguated into a PlatformKeyboardEvent::RawKeyDown. Since
    646         // we don't have access to the text here, we return, and wait for the
    647         // corresponding event based on PlatformKeyboardEvent::Char.
    648         return;
    649     } else if (event->type() == eventNames().keypressEvent) {
    650         // Which would be this one. This event was disambiguated from the same
    651         // PlatformKeyboardEvent::KeyDown, but to a PlatformKeyboardEvent::Char,
    652         // which retains the text from the original event. So, we can safely pass
    653         // on the event as a key-down event to the plugin.
    654         record.what = keyDown;
    655     } else if (event->type() == eventNames().keyupEvent) {
    656         // PlatformKeyboardEvent::KeyUp events always have the text, so nothing
    657         // fancy here.
    658         record.what = keyUp;
    659     } else {
    660         return;
    661     }
    662 
    663     const PlatformKeyboardEvent* platformEvent = event->keyEvent();
    664     int keyCode = platformEvent->nativeVirtualKeyCode();
    665 
    666     const String text = platformEvent->text();
    667     if (text.length() < 1) {
    668         event->setDefaultHandled();
    669         return;
    670     }
    671 
    672     WTF::RetainPtr<CFStringRef> cfText(WTF::AdoptCF, text.createCFString());
    673 
    674     LOG(Plugins, "PV::hKE(): PKE.text: %s, PKE.unmodifiedText: %s, PKE.keyIdentifier: %s",
    675             text.ascii().data(), platformEvent->unmodifiedText().ascii().data(),
    676             platformEvent->keyIdentifier().ascii().data());
    677 
    678     char charCodes[2] = { 0, 0 };
    679     if (!CFStringGetCString(cfText.get(), charCodes, 2, CFStringGetSystemEncoding())) {
    680         LOG_ERROR("Could not resolve character code using system encoding.");
    681         event->setDefaultHandled();
    682         return;
    683     }
    684 
    685     record.where = globalMousePosForPlugin();
    686     record.modifiers = modifiersForEvent(event);
    687     record.message = ((keyCode & 0xFF) << 8) | (charCodes[0] & 0xFF);
    688     record.when = TickCount();
    689 
    690     LOG(Plugins, "PV::hKE(): record.modifiers: %d", record.modifiers);
    691 
    692 #if PLATFORM(QT)
    693     LOG(Plugins, "PV::hKE(): PKE.qtEvent()->nativeVirtualKey: 0x%02X, charCode: %d",
    694                keyCode, int(uchar(charCodes[0])));
    695 #endif
    696 
    697     if (!dispatchNPEvent(record))
    698         LOG(Events, "PluginView::handleKeyboardEvent(): Keyboard event type %d not accepted", record.what);
    699     else
    700         event->setDefaultHandled();
    701 }
    702 
    703 static int modifiersForEvent(UIEventWithKeyState* event)
    704 {
    705     int modifiers = 0;
    706 
    707     if (event->ctrlKey())
    708         modifiers |= controlKey;
    709 
    710     if (event->altKey())
    711         modifiers |= optionKey;
    712 
    713     if (event->metaKey())
    714         modifiers |= cmdKey;
    715 
    716     if (event->shiftKey())
    717         modifiers |= shiftKey;
    718 
    719      return modifiers;
    720 }
    721 
    722 static bool tigerOrBetter()
    723 {
    724     static SInt32 systemVersion = 0;
    725 
    726     if (!systemVersion) {
    727         if (Gestalt(gestaltSystemVersion, &systemVersion) != noErr)
    728             return false;
    729     }
    730 
    731     return systemVersion >= 0x1040;
    732 }
    733 
    734 Point PluginView::globalMousePosForPlugin() const
    735 {
    736     Point pos;
    737     GetGlobalMouse(&pos);
    738 
    739     float scaleFactor = tigerOrBetter() ? HIGetScaleFactor() : 1;
    740 
    741     pos.h = short(pos.h * scaleFactor);
    742     pos.v = short(pos.v * scaleFactor);
    743 
    744 #if PLATFORM(WX)
    745     // make sure the titlebar/toolbar size is included
    746     WindowRef windowRef = nativeWindowFor(platformPluginWidget());
    747     ::Rect content, structure;
    748 
    749     GetWindowBounds(windowRef, kWindowStructureRgn, &structure);
    750     GetWindowBounds(windowRef, kWindowContentRgn, &content);
    751 
    752     int top = content.top  - structure.top;
    753     pos.v -= top;
    754 #endif
    755 
    756     return pos;
    757 }
    758 
    759 bool PluginView::dispatchNPEvent(NPEvent& event)
    760 {
    761     PluginView::setCurrentPluginView(this);
    762     JSC::JSLock::DropAllLocks dropAllLocks(JSC::SilenceAssertionsOnly);
    763     setCallingPlugin(true);
    764 
    765     bool accepted = m_plugin->pluginFuncs()->event(m_instance, &event);
    766 
    767     setCallingPlugin(false);
    768     PluginView::setCurrentPluginView(0);
    769     return accepted;
    770 }
    771 
    772 // ------------------- Miscellaneous  ------------------
    773 
    774 NPError PluginView::handlePostReadFile(Vector<char>& buffer, uint32 len, const char* buf)
    775 {
    776     String filename(buf, len);
    777 
    778     if (filename.startsWith("file:///"))
    779         filename = filename.substring(8);
    780 
    781     if (!fileExists(filename))
    782         return NPERR_FILE_NOT_FOUND;
    783 
    784     FILE* fileHandle = fopen((filename.utf8()).data(), "r");
    785 
    786     if (fileHandle == 0)
    787         return NPERR_FILE_NOT_FOUND;
    788 
    789     int bytesRead = fread(buffer.data(), 1, 0, fileHandle);
    790 
    791     fclose(fileHandle);
    792 
    793     if (bytesRead <= 0)
    794         return NPERR_FILE_NOT_FOUND;
    795 
    796     return NPERR_NO_ERROR;
    797 }
    798 
    799 void PluginView::halt()
    800 {
    801 }
    802 
    803 void PluginView::restart()
    804 {
    805 }
    806 
    807 } // namespace WebCore
    808 
    809 #else
    810 
    811 #include "../PluginViewNone.cpp"
    812 
    813 #endif // !__LP64__
    814