changing how plugins gain/lose focus.

Previously we were keeping our own state in the UI thread to
determine when to send events to the plugin. This change removes
that logic and uses the document focus to determine when events
are to be sent. This also fixes problems with the plugins
occasionally not receiving lose focus events.

see bug http://b/2033843

3 files changed, 10 insertions, 119 deletions

diff --git a/WebKit/android/jni/WebViewCore.cpp b/WebKit/android/jni/WebViewCore.cpp
index eb35d44..d31d936 100644
--- a/WebKit/android/jni/WebViewCore.cpp
+++ b/WebKit/android/jni/WebViewCore.cpp
@@ -1400,33 +1400,6 @@ Node* WebViewCore::cursorNodeIsPlugin() {
     return 0;
 }
 
-
-void WebViewCore::updatePluginState(Frame* frame, Node* node, PluginState state) {
-
-    // check that the node and frame pointers are (still) valid
-    if (!frame || !node || !CacheBuilder::validNode(m_mainFrame, frame, node))
-        return;
-
-    // check that the node is a plugin view
-    PluginView* pluginView = nodeIsPlugin(node);
-    if (!pluginView)
-        return;
-
-    // create the event
-    ANPEvent event;
-    SkANP::InitEvent(&event, kLifecycle_ANPEventType);
-
-    if (state == kLoseFocus_PluginState)
-        event.data.lifecycle.action = kLoseFocus_ANPLifecycleAction;
-    else if (state == kGainFocus_PluginState)
-        event.data.lifecycle.action = kGainFocus_ANPLifecycleAction;
-    else
-        return;
-
-    // send the event
-    pluginView->platformPluginWidget()->sendEvent(event);
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 void WebViewCore::moveMouseIfLatest(int moveGeneration,
     WebCore::Frame* frame, int x, int y)
@@ -3000,17 +2973,6 @@ static bool PictureReady(JNIEnv* env, jobject obj)
     return GET_NATIVE_VIEW(env, obj)->pictureReady();
 }
 
-static void UpdatePluginState(JNIEnv* env, jobject obj, jint framePtr, jint nodePtr, jint state)
-{
-#ifdef ANDROID_INSTRUMENT
-    TimeCounterAuto counter(TimeCounter::WebViewCoreTimeCounter);
-#endif
-    WebViewCore* viewImpl = GET_NATIVE_VIEW(env, obj);
-    LOG_ASSERT(viewImpl, "viewImpl not set in nativeUpdatePluginState");
-    viewImpl->updatePluginState((WebCore::Frame*) framePtr, (WebCore::Node*) nodePtr,
-                                (PluginState) state);
-}
-
 static void Pause(JNIEnv* env, jobject obj)
 {
     // This is called for the foreground tab when the browser is put to the
@@ -3149,7 +3111,6 @@ static JNINativeMethod gJavaWebViewCoreMethods[] = {
     { "nativeResume", "()V", (void*) Resume },
     { "nativeFreeMemory", "()V", (void*) FreeMemory },
     { "nativeSetJsFlags", "(Ljava/lang/String;)V", (void*) SetJsFlags },
-    { "nativeUpdatePluginState", "(III)V", (void*) UpdatePluginState },
     { "nativeUpdateFrameCacheIfLoading", "()V",
         (void*) UpdateFrameCacheIfLoading },
     { "nativeProvideVisitedHistory", "([Ljava/lang/String;)V",
diff --git a/WebKit/android/jni/WebViewCore.h b/WebKit/android/jni/WebViewCore.h
index 88031d0..a7855b8 100644
--- a/WebKit/android/jni/WebViewCore.h
+++ b/WebKit/android/jni/WebViewCore.h
@@ -63,11 +63,6 @@ class SkIRect;
 
 namespace android {
 
-    enum PluginState {
-        kGainFocus_PluginState  = 0,
-        kLoseFocus_PluginState  = 1,
-    };
-
     class CachedRoot;
     class ListBoxReply;
 
@@ -366,9 +361,6 @@ namespace android {
         // return the cursorNode if it is a plugin
         Node* cursorNodeIsPlugin();
 
-        // notify the plugin of an update in state
-        void updatePluginState(Frame* frame, Node* node, PluginState state);
-
         // Notify the Java side whether it needs to pass down the touch events
         void needTouchEvents(bool);
 
diff --git a/WebKit/android/nav/WebView.cpp b/WebKit/android/nav/WebView.cpp
index 20e8a70..4b32516 100644
--- a/WebKit/android/nav/WebView.cpp
+++ b/WebKit/android/nav/WebView.cpp
@@ -98,7 +98,6 @@ struct JavaGlue {
     jobject     m_obj;
     jmethodID   m_clearTextEntry;
     jmethodID   m_overrideLoading;
-    jmethodID   m_sendPluginState;
     jmethodID   m_scrollBy;
     jmethodID   m_sendMoveMouse;
     jmethodID   m_sendMoveMouseIfLatest;
@@ -128,7 +127,6 @@ WebView(JNIEnv* env, jobject javaWebView, int viewImpl)
     m_javaGlue.m_scrollBy = GetJMethod(env, clazz, "setContentScrollBy", "(IIZ)Z");
     m_javaGlue.m_clearTextEntry = GetJMethod(env, clazz, "clearTextEntry", "()V");
     m_javaGlue.m_overrideLoading = GetJMethod(env, clazz, "overrideLoading", "(Ljava/lang/String;)V");
-    m_javaGlue.m_sendPluginState = GetJMethod(env, clazz, "sendPluginState", "(I)V");
     m_javaGlue.m_sendMoveMouse = GetJMethod(env, clazz, "sendMoveMouse", "(IIII)V");
     m_javaGlue.m_sendMoveMouseIfLatest = GetJMethod(env, clazz, "sendMoveMouseIfLatest", "(Z)V");
     m_javaGlue.m_sendMotionUp = GetJMethod(env, clazz, "sendMotionUp", "(IIIII)V");
@@ -163,10 +161,6 @@ WebView(JNIEnv* env, jobject javaWebView, int viewImpl)
     m_matches = 0;
     m_hasCurrentLocation = false;
     m_isFindPaintSetUp = false;
-    m_pluginReceivesEvents = false; // initialization is the only time this
-                                    // variable should be set directly, all
-                                    // other changes should be made through
-                                    // setPluginReceivesEvents(bool)
 }
 
 ~WebView()
@@ -483,10 +477,9 @@ void drawCursorRing(SkCanvas* canvas)
             " bounds=(%d,%d,w=%d,h=%d)", node->index(), node->nodePointer(),
             bounds.x(), bounds.y(), bounds.width(), bounds.height());
         m_followedLink = false;
-        setPluginReceivesEvents(false);
         return;
     }
-    if (!node->hasCursorRing() || (m_pluginReceivesEvents && node->isPlugin()))
+    if (!node->hasCursorRing() || (node->isPlugin() && node->isFocus()))
         return;
     CursorRing::Flavor flavor = CursorRing::NORMAL_FLAVOR;
     if (!isButton) {
@@ -499,13 +492,12 @@ void drawCursorRing(SkCanvas* canvas)
 #if DEBUG_NAV_UI
         const WebCore::IntRect& ring = (*rings)[0];
         DBG_NAV_LOGD("cursorNode=%d (nodePointer=%p) flavor=%s rings=%d"
-            " (%d, %d, %d, %d) pluginReceivesEvents=%s isPlugin=%s",
+            " (%d, %d, %d, %d) isPlugin=%s",
             node->index(), node->nodePointer(),
             flavor == CursorRing::FAKE_FLAVOR ? "FAKE_FLAVOR" :
             flavor == CursorRing::NORMAL_ANIMATING ? "NORMAL_ANIMATING" :
             flavor == CursorRing::FAKE_ANIMATING ? "FAKE_ANIMATING" : "NORMAL_FLAVOR",
             rings->size(), ring.x(), ring.y(), ring.width(), ring.height(),
-            m_pluginReceivesEvents ? "true" : "false",
             node->isPlugin() ? "true" : "false");
 #endif
     }
@@ -756,7 +748,6 @@ void updateCursorBounds(const CachedRoot* root, const CachedFrame* cachedFrame,
 /* returns true if the key had no effect (neither scrolled nor changed cursor) */
 bool moveCursor(int keyCode, int count, bool ignoreScroll)
 {
-    setPluginReceivesEvents(false);
     CachedRoot* root = getFrameCache(AllowNewer);
     if (!root) {
         DBG_NAV_LOG("!root");
@@ -841,21 +832,6 @@ bool moveCursor(int keyCode, int count, bool ignoreScroll)
     return result;
 }
 
-bool pluginEatsNavKey()
-{
-    CachedRoot* root = getFrameCache(DontAllowNewer);
-    if (!root) {
-        DBG_NAV_LOG("!root");
-        return false;
-    }
-    const CachedNode* cursor = root->currentCursor();
-    DBG_NAV_LOGD("cursor=%p isPlugin=%s pluginReceivesEvents=%s",
-        cursor, cursor && cursor->isPlugin() ? "true" : "false",
-        m_pluginReceivesEvents ? "true" : "false");
-    // FIXME: check to see if plugin wants keys
-    return cursor && cursor->isPlugin() && m_pluginReceivesEvents;
-}
-
 void notifyProgressFinished()
 {
     DBG_NAV_LOGD("cursorIsTextInput=%d", cursorIsTextInput(DontAllowNewer));
@@ -975,7 +951,6 @@ bool motionUp(int x, int y, int slop)
             0, x, y);
         viewInvalidate();
         clearTextEntry();
-        setPluginReceivesEvents(false);
         return pageScrolled;
     }
     DBG_NAV_LOGD("CachedNode:%p (%d) x=%d y=%d rx=%d ry=%d", result,
@@ -984,7 +959,6 @@ bool motionUp(int x, int y, int slop)
     updateCursorBounds(root, frame, result);
     root->setCursor(const_cast<CachedFrame*>(frame),
         const_cast<CachedNode*>(result));
-    updatePluginReceivesEvents();
     CachedNodeType type = result->type();
     if (type == NORMAL_CACHEDNODETYPE) {
         sendMotionUp(
@@ -1034,35 +1008,6 @@ void setFindIsUp(bool up)
         m_hasCurrentLocation = false;
 }
 
-void setPluginReceivesEvents(bool value)
-{
-    if (value == m_pluginReceivesEvents)
-        return;
-
-    //send message to plugin in webkit
-    JNIEnv* env = JSC::Bindings::getJNIEnv();
-    AutoJObject obj = m_javaGlue.object(env);
-    // if it is called during or after DESTROY is handled, the real object of
-    // WebView can be gone. Check before using it.
-    if (!obj.get())
-        return;
-    env->CallVoidMethod(obj.get(), m_javaGlue.m_sendPluginState,
-                        value ? kGainFocus_PluginState : kLoseFocus_PluginState);
-    checkException(env);
-    m_pluginReceivesEvents = value;
-}
-
-void updatePluginReceivesEvents()
-{
-    CachedRoot* root = getFrameCache(DontAllowNewer);
-    if (!root)
-        return;
-    const CachedNode* cursor = root->currentCursor();
-    setPluginReceivesEvents(cursor && cursor->isPlugin());
-    DBG_NAV_LOGD("m_pluginReceivesEvents=%s cursor=%p", m_pluginReceivesEvents
-        ? "true" : "false", cursor);
-}
-
 void setFollowedLink(bool followed)
 {
     if ((m_followedLink = followed) != false) {
@@ -1396,7 +1341,6 @@ private: // local state for WebView
     int m_generation; // associate unique ID with sent kit focus to match with ui
     SkPicture* m_navPictureUI;
     bool m_followedLink;
-    bool m_pluginReceivesEvents;
     SkMSec m_ringAnimationEnd;
     // Corresponds to the same-named boolean on the java side.
     bool m_heightCanMeasure;
@@ -1736,6 +1680,12 @@ static bool nativeFocusCandidateIsPlugin(JNIEnv *env, jobject obj)
     return node ? node->isPlugin() : false;
 }
 
+static bool nativeFocusIsPlugin(JNIEnv *env, jobject obj)
+{
+    const CachedNode* node = getFocusNode(env, obj);
+    return node ? node->isPlugin() : false;
+}
+
 static jint nativeFocusNodePointer(JNIEnv *env, jobject obj)
 {
     const CachedNode* node = getFocusNode(env, obj);
@@ -1825,11 +1775,6 @@ static void nativeSetFindIsDown(JNIEnv *env, jobject obj)
     view->setFindIsUp(false);
 }
 
-static void nativeUpdatePluginReceivesEvents(JNIEnv *env, jobject obj)
-{
-    GET_NATIVE_VIEW(env, obj)->updatePluginReceivesEvents();
-}
-
 static void nativeSetFollowedLink(JNIEnv *env, jobject obj, bool followed)
 {
     WebView* view = GET_NATIVE_VIEW(env, obj);
@@ -2008,11 +1953,6 @@ static void nativeMoveSelection(JNIEnv *env, jobject obj, int x, int y, bool ex)
     view->moveSelection(x, y, ex);
 }
 
-static bool nativePluginEatsNavKey(JNIEnv *env, jobject obj)
-{
-    return GET_NATIVE_VIEW(env, obj)->pluginEatsNavKey();
-}
-
 static jobject nativeGetSelection(JNIEnv *env, jobject obj)
 {
     WebView* view = GET_NATIVE_VIEW(env, obj);
@@ -2129,6 +2069,8 @@ static JNINativeMethod gJavaWebViewMethods[] = {
         (void*) nativeFocusCandidateText },
     { "nativeFocusCandidateTextSize", "()I",
         (void*) nativeFocusCandidateTextSize },
+    { "nativeFocusIsPlugin", "()Z",
+        (void*) nativeFocusIsPlugin },
     { "nativeFocusNodePointer", "()I",
         (void*) nativeFocusNodePointer },
     { "nativeGetCursorRingBounds", "()Landroid/graphics/Rect;",
@@ -2157,8 +2099,6 @@ static JNINativeMethod gJavaWebViewMethods[] = {
         (void*) nativeMoveGeneration },
     { "nativeMoveSelection", "(IIZ)V",
         (void*) nativeMoveSelection },
-    { "nativePluginEatsNavKey", "()Z",
-        (void*) nativePluginEatsNavKey },
     { "nativeRecordButtons", "(ZZZ)V",
         (void*) nativeRecordButtons },
     { "nativeSelectBestAt", "(Landroid/graphics/Rect;)V",
@@ -2177,8 +2117,6 @@ static JNINativeMethod gJavaWebViewMethods[] = {
         (void*) nativeUpdateCachedTextfield },
     { "nativeGetBlockLeftEdge", "(IIF)I",
         (void*) nativeGetBlockLeftEdge },
-    { "nativeUpdatePluginReceivesEvents", "()V",
-        (void*) nativeUpdatePluginReceivesEvents }
 };
 
 int register_webview(JNIEnv* env)