WebKit/mac/Plugins/WebNetscapePluginEventHandlerCocoa.mm
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/Plugins/WebNetscapePluginEventHandlerCocoa.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 2008 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. ``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
+ * 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. 
+ */
+
+#if ENABLE(NETSCAPE_PLUGIN_API)
+
+#import "WebNetscapePluginEventHandlerCocoa.h"
+
+#import "WebKitSystemInterface.h"
+#import "WebNetscapePluginView.h"
+#import <wtf/UnusedParam.h>
+#import <wtf/Vector.h>
+
+WebNetscapePluginEventHandlerCocoa::WebNetscapePluginEventHandlerCocoa(WebNetscapePluginView* pluginView)
+    : WebNetscapePluginEventHandler(pluginView)
+#ifndef __LP64__
+    , m_keyEventHandler(0)
+#endif
+{
+}
+
+static inline void initializeEvent(NPCocoaEvent* event, NPCocoaEventType type)
+{
+    event->type = type;
+    event->version = 0;
+}
+
+void WebNetscapePluginEventHandlerCocoa::drawRect(CGContextRef context, const NSRect& rect)
+{
+    NPCocoaEvent event;
+    
+    initializeEvent(&event, NPCocoaEventDrawRect);
+    event.data.draw.context = context;
+    event.data.draw.x = rect.origin.x;
+    event.data.draw.y = rect.origin.y;
+    event.data.draw.width = rect.size.width;
+    event.data.draw.height = rect.size.height;
+    
+    RetainPtr<CGContextRef> protect(context);
+    
+    sendEvent(&event);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseDown(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseDown);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseDragged(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseDragged);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseEntered(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseEntered);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseExited(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseExited);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseMoved(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseMoved);
+}
+
+void WebNetscapePluginEventHandlerCocoa::mouseUp(NSEvent *event)
+{
+    sendMouseEvent(event, NPCocoaEventMouseUp);
+}
+
+bool WebNetscapePluginEventHandlerCocoa::scrollWheel(NSEvent* event)
+{
+    return sendMouseEvent(event, NPCocoaEventScrollWheel);
+}
+
+bool WebNetscapePluginEventHandlerCocoa::sendMouseEvent(NSEvent *nsEvent, NPCocoaEventType type)
+{
+    NPCocoaEvent event;
+    
+    NSPoint point = [m_pluginView convertPoint:[nsEvent locationInWindow] fromView:nil];
+    
+    int clickCount;
+    if (type == NPCocoaEventMouseEntered || type == NPCocoaEventMouseExited || type == NPCocoaEventScrollWheel)
+        clickCount = 0;
+    else
+        clickCount = [nsEvent clickCount];
+    
+    initializeEvent(&event, type);
+    event.data.mouse.modifierFlags = [nsEvent modifierFlags];
+    event.data.mouse.buttonNumber = [nsEvent buttonNumber];
+    event.data.mouse.clickCount = clickCount;
+    event.data.mouse.pluginX = point.x;
+    event.data.mouse.pluginY = point.y;
+    event.data.mouse.deltaX = [nsEvent deltaX];
+    event.data.mouse.deltaY = [nsEvent deltaY];
+    event.data.mouse.deltaZ = [nsEvent deltaZ];
+    
+    return sendEvent(&event);
+}
+
+void WebNetscapePluginEventHandlerCocoa::keyDown(NSEvent *event)
+{
+    bool retval = sendKeyEvent(event, NPCocoaEventKeyDown);
+    
+#ifndef __LP64__
+    // If the plug-in did not handle the event, pass it on to the Input Manager.
+    if (retval)
+        WKSendKeyEventToTSM(event);
+#else
+    UNUSED_PARAM(retval);
+#endif
+}
+
+void WebNetscapePluginEventHandlerCocoa::keyUp(NSEvent *event)
+{
+    sendKeyEvent(event, NPCocoaEventKeyUp);
+}
+
+void WebNetscapePluginEventHandlerCocoa::flagsChanged(NSEvent *nsEvent)
+{
+    NPCocoaEvent event;
+        
+    initializeEvent(&event, NPCocoaEventFlagsChanged);
+    event.data.key.modifierFlags = [nsEvent modifierFlags];
+    event.data.key.keyCode = [nsEvent keyCode];
+    event.data.key.isARepeat = false;
+    event.data.key.characters = 0;
+    event.data.key.charactersIgnoringModifiers = 0;
+    
+    sendEvent(&event);
+}
+
+void WebNetscapePluginEventHandlerCocoa::syntheticKeyDownWithCommandModifier(int keyCode, char character)
+{
+    char nullTerminatedString[] = { character, '\0' };
+    
+    RetainPtr<NSString> characters(AdoptNS, [[NSString alloc] initWithUTF8String:nullTerminatedString]);
+    
+    NPCocoaEvent event;
+    initializeEvent(&event, NPCocoaEventKeyDown);
+    event.data.key.modifierFlags = NSCommandKeyMask;
+    event.data.key.keyCode = keyCode;
+    event.data.key.isARepeat = false;
+    event.data.key.characters = (NPNSString *)characters.get();
+    event.data.key.charactersIgnoringModifiers = (NPNSString *)characters.get();
+
+    sendEvent(&event);
+}
+
+bool WebNetscapePluginEventHandlerCocoa::sendKeyEvent(NSEvent* nsEvent, NPCocoaEventType type)
+{
+    NPCocoaEvent event;
+
+    initializeEvent(&event, type);
+    event.data.key.modifierFlags = [nsEvent modifierFlags];
+    event.data.key.keyCode = [nsEvent keyCode];
+    event.data.key.isARepeat = [nsEvent isARepeat];
+    event.data.key.characters = (NPNSString *)[nsEvent characters];
+    event.data.key.charactersIgnoringModifiers = (NPNSString *)[nsEvent charactersIgnoringModifiers];
+     
+    return sendEvent(&event);
+}
+
+void WebNetscapePluginEventHandlerCocoa::windowFocusChanged(bool hasFocus)
+{
+    NPCocoaEvent event;
+    
+    initializeEvent(&event, NPCocoaEventWindowFocusChanged);
+    event.data.focus.hasFocus = hasFocus;
+    
+    sendEvent(&event);
+}
+
+void WebNetscapePluginEventHandlerCocoa::focusChanged(bool hasFocus)
+{
+    NPCocoaEvent event;
+
+    initializeEvent(&event, NPCocoaEventFocusChanged);
+    event.data.focus.hasFocus = hasFocus;
+    
+    sendEvent(&event);
+    
+    if (hasFocus)
+        installKeyEventHandler();
+    else
+        removeKeyEventHandler();
+}
+
+void* WebNetscapePluginEventHandlerCocoa::platformWindow(NSWindow* window)
+{
+    return window;
+}
+
+bool WebNetscapePluginEventHandlerCocoa::sendEvent(NPCocoaEvent* event)
+{
+    switch (event->type) {
+        case NPCocoaEventMouseDown:
+        case NPCocoaEventMouseUp:
+        case NPCocoaEventMouseDragged:
+        case NPCocoaEventKeyDown:
+        case NPCocoaEventKeyUp:
+        case NPCocoaEventFlagsChanged:
+        case NPCocoaEventScrollWheel:
+            m_currentEventIsUserGesture = true;
+            break;
+        default:
+            m_currentEventIsUserGesture = false;
+    }
+            
+    bool result = [m_pluginView sendEvent:event isDrawRect:event->type == NPCocoaEventDrawRect];
+    
+    m_currentEventIsUserGesture = false;
+    return result;
+}
+
+#ifndef __LP64__
+
+void WebNetscapePluginEventHandlerCocoa::installKeyEventHandler()
+{
+    static const EventTypeSpec TSMEvents[] =
+    {
+        { kEventClassTextInput, kEventTextInputUnicodeForKeyEvent }
+    };
+    
+    if (!m_keyEventHandler)
+        InstallEventHandler(GetWindowEventTarget((WindowRef)[[m_pluginView window] windowRef]),
+                            NewEventHandlerUPP(TSMEventHandler),
+                            GetEventTypeCount(TSMEvents),
+                            TSMEvents,
+                            this,
+                            &m_keyEventHandler);
+}
+
+void WebNetscapePluginEventHandlerCocoa::removeKeyEventHandler()
+{
+    if (m_keyEventHandler) {
+        RemoveEventHandler(m_keyEventHandler);
+        m_keyEventHandler = 0;
+    }    
+}
+
+OSStatus WebNetscapePluginEventHandlerCocoa::TSMEventHandler(EventHandlerCallRef inHandlerRef, EventRef event, void* eventHandler)
+{
+    return static_cast<WebNetscapePluginEventHandlerCocoa*>(eventHandler)->handleTSMEvent(event);
+}
+
+OSStatus WebNetscapePluginEventHandlerCocoa::handleTSMEvent(EventRef eventRef)
+{
+    ASSERT(GetEventKind(eventRef) == kEventTextInputUnicodeForKeyEvent);
+    
+    // Get the text buffer size.
+    ByteCount size;
+    OSStatus result = GetEventParameter(eventRef, kEventParamTextInputSendText, typeUnicodeText, 0, 0, &size, 0);
+    if (result != noErr)
+        return result;
+    
+    unsigned length = size / sizeof(UniChar);
+    Vector<UniChar, 16> characters(length);
+    
+    // Now get the actual text.
+    result = GetEventParameter(eventRef, kEventParamTextInputSendText, typeUnicodeText, 0, size, 0, characters.data());
+    if (result != noErr)
+        return result;
+
+    RetainPtr<CFStringRef> text(AdoptCF, CFStringCreateWithCharacters(0, characters.data(), length));
+
+    NPCocoaEvent event;
+    
+    initializeEvent(&event, NPCocoaEventTextInput);
+    event.data.text.text = (NPNSString*)text.get();
+    
+    sendEvent(&event);
+
+    return noErr;
+}
+
+#endif // __LP64__
+
+#endif // ENABLE(NETSCAPE_PLUGIN_API)