зеркало из https://github.com/mozilla/gecko-dev.git
264 строки
8.0 KiB
C++
264 строки
8.0 KiB
C++
/*
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The contents of this file are subject to the Mozilla Public
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License Version 1.1 (the "License"); you may not use this file
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except in compliance with the License. You may obtain a copy of
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the License at http://www.mozilla.org/MPL/
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Software distributed under the License is distributed on an "AS
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IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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implied. See the License for the specific language governing
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rights and limitations under the License.
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The Original Code is mozilla.org code.
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The Initial Developer of the Original Code is Sun Microsystems,
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Inc. Portions created by Sun are
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Copyright (C) 1999 Sun Microsystems, Inc. All
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Rights Reserved.
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Contributor(s):
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*/
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#include "prlog.h"
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#include "prmon.h"
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#include "nsAutoLock.h"
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#include "javaDOMEventsGlobals.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMUIEvent.h"
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jclass JavaDOMEventsGlobals::eventClass = NULL;
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jclass JavaDOMEventsGlobals::uiEventClass = NULL;
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jclass JavaDOMEventsGlobals::eventListenerClass = NULL;
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jclass JavaDOMEventsGlobals::eventTargetClass = NULL;
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jclass JavaDOMEventsGlobals::mouseEventClass = NULL;
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jclass JavaDOMEventsGlobals::mutationEventClass = NULL;
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jfieldID JavaDOMEventsGlobals::eventPtrFID = NULL;
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jfieldID JavaDOMEventsGlobals::eventTargetPtrFID = NULL;
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jfieldID JavaDOMEventsGlobals::eventPhaseBubblingFID = NULL;
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jfieldID JavaDOMEventsGlobals::eventPhaseCapturingFID = NULL;
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jfieldID JavaDOMEventsGlobals::eventPhaseAtTargetFID = NULL;
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jmethodID JavaDOMEventsGlobals::eventListenerHandleEventMID = NULL;
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kIDOMUIEventIID, NS_IDOMUIEVENT_IID);
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void JavaDOMEventsGlobals::Initialize(JNIEnv *env)
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{
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eventClass = env->FindClass("org/mozilla/dom/events/EventImpl");
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if (!eventClass) {
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JavaDOMGlobals::ThrowException(env, "Class org.mozilla.dom.events.EventImpl not found");
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return;
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}
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eventClass = (jclass) env->NewGlobalRef(eventClass);
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if (!eventClass)
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return;
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eventPtrFID =
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env->GetFieldID(eventClass, "p_nsIDOMEvent", "J");
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if (!eventPtrFID) {
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JavaDOMGlobals::ThrowException(env, "There is no field p_nsIDOMEvent in org.mozilla.dom.events.EventImpl");
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return;
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}
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eventListenerClass = env->FindClass("org/w3c/dom/events/EventListener");
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if (!eventListenerClass) {
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JavaDOMGlobals::ThrowException(env, "Class org.w3c.dom.events.EventListener not found");
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return;
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}
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eventListenerClass = (jclass) env->NewGlobalRef(eventListenerClass);
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if (!eventListenerClass)
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return;
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eventListenerHandleEventMID = env->GetMethodID(
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eventListenerClass, "handleEvent", "(Lorg/w3c/dom/events/Event;)V");
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if (!eventListenerHandleEventMID) {
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JavaDOMGlobals::ThrowException(env, "There is no method handleEvent in org.w3c.dom.events.EventListener");
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return;
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}
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uiEventClass = env->FindClass("org/mozilla/dom/events/UIEventImpl");
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if (!uiEventClass) {
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JavaDOMGlobals::ThrowException(env, "Class org.mozilla.dom.events.UIEventImpl not found");
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return;
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}
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uiEventClass = (jclass) env->NewGlobalRef(uiEventClass);
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if (!uiEventClass)
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return;
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eventPhaseBubblingFID =
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env->GetStaticFieldID(eventClass, "BUBBLING_PHASE", "S");
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if (!eventPhaseBubblingFID) {
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JavaDOMGlobals::ThrowException(env, "There is no static field BUBBLING_PHASE in org.w3c.dom.events.Event");
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return;
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}
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eventPhaseCapturingFID =
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env->GetStaticFieldID(eventClass, "CAPTURING_PHASE", "S");
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if (!eventPhaseCapturingFID) {
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JavaDOMGlobals::ThrowException(env, "There is no static field CAPTURING_PHASE in org.w3c.dom.events.Event");
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return;
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}
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eventPhaseAtTargetFID =
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env->GetStaticFieldID(eventClass, "AT_TARGET", "S");
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if (!eventPhaseAtTargetFID) {
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JavaDOMGlobals::ThrowException(env, "There is no static field AT_TARGET in org.w3c.dom.events.Event");
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return;
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}
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mouseEventClass = env->FindClass("org/mozilla/dom/events/MouseEventImpl");
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if (!mouseEventClass) {
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JavaDOMGlobals::ThrowException(env, "Class org.mozilla.dom.events.MouseEventImpl not found");
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return;
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}
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mouseEventClass = (jclass) env->NewGlobalRef(mouseEventClass);
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if (!mouseEventClass)
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return;
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}
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void JavaDOMEventsGlobals::Destroy(JNIEnv *env)
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{
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env->DeleteGlobalRef(eventClass);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("JavaDOMEventsGlobals::Destroy: failed to delete Event global ref %x\n",
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eventClass));
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return;
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}
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eventClass = NULL;
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env->DeleteGlobalRef(eventListenerClass);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("JavaDOMEventsGlobals::Destroy: failed to delete EventListener global ref %x\n",
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eventListenerClass));
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return;
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}
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eventListenerClass = NULL;
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env->DeleteGlobalRef(uiEventClass);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("JavaDOMEventsGlobals::Destroy: failed to delete UIEvent global ref %x\n",
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uiEventClass));
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return;
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}
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uiEventClass = NULL;
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env->DeleteGlobalRef(mouseEventClass);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("JavaDOMEventsGlobals::Destroy: failed to delete mouseEvent global ref %x\n",
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mouseEventClass));
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return;
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}
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mouseEventClass = NULL;
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}
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//returns true if specified event "type" exists in the given list of types
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// NOTE: it is assumed that "types" list is enden with NULL
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static jboolean isEventOfType(const char* const* types, const char* type)
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{
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int i=0;
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while (type && types && types[i]) {
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if (!strcmp(type,types[i]))
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return JNI_TRUE;
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i++;
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}
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return JNI_FALSE;
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}
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jobject JavaDOMEventsGlobals::CreateEventSubtype(JNIEnv *env,
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nsIDOMEvent *event)
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{
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jobject jevent;
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jclass clazz = eventClass;
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nsISupports *isupports;
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void *target;
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nsresult rv;
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isupports = (nsISupports *) event;
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//check whenever our Event is UIEvent
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rv = isupports->QueryInterface(kIDOMUIEventIID, (void **) &target);
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if (!NS_FAILED(rv) && target) {
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// At the moment DOM2 draft specifies set of UIEvent subclasses
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// However Mozilla still presents these events as nsUIEvent
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// So we need a cludge to determine proper java class to be created
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static const char* const uiEventTypes[] = {
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"resize",
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"scroll",
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"focusin",
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"focusout",
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"gainselection",
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"loseselection",
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"activate",
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NULL
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};
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static const char* const mouseEventTypes[] = {
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"click",
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"mousedown",
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"mouseup",
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"mouseover",
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"mousemove",
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"mouseout",
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NULL
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};
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nsString eventType;
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rv = event->GetType(eventType);
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if (NS_FAILED(rv)) {
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JavaDOMGlobals::ThrowException(env,
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"Event.getType at JavaDOMEventsGlobals: failed");
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return NULL;
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}
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char* buffer = (char *) eventType.GetBufferHandle();
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if (isEventOfType(mouseEventTypes, buffer) == JNI_TRUE) {
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clazz = mouseEventClass;
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} else if (isEventOfType(uiEventTypes, buffer) == JNI_TRUE) {
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clazz = uiEventClass;
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} else {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("Unknown type of UI event (%s)", buffer));
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clazz = uiEventClass;
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}
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nsMemory::Free(buffer);
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event->Release();
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event = (nsIDOMEvent *) target;
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}
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PR_LOG(JavaDOMGlobals::log, PR_LOG_WARNING,
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("JavaDOMEventsGlobals::CreateEventSubtype: allocating Node of clazz=%x\n",
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clazz));
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jevent = env->AllocObject(clazz);
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if (!jevent) {
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JavaDOMGlobals::ThrowException(env,
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"JavaDOMEventsGlobals::CreateEventSubtype: failed to allocate Event object");
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return NULL;
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}
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env->SetLongField(jevent, eventPtrFID, (jlong) event);
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if (env->ExceptionOccurred()) {
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PR_LOG(JavaDOMGlobals::log, PR_LOG_ERROR,
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("JavaDOMEventGlobals::CreateEventSubtype: failed to set native ptr %x\n",
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(jlong) event));
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return NULL;
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}
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event->AddRef();
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return jevent;
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}
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