■
ProcessEventは
layout/generic/nsObjectFrame.cpp
にある。でもこれプラグイン用みたい。
~/mozilla/widget/public/nsGUIEvent.h
class nsEvent { ....... // See event struct types PRUint8 eventStructType; // See GUI MESSAGES, PRUint32 message; // In widget relative coordinates, not modified by layout code. nsPoint refPoint; // Elapsed time, in milliseconds, from a platform-specific zero time // to the time the message was created PRUint32 time; // Flags to hold event flow stage and capture/bubble cancellation // status. This is used also to indicate whether the event is trusted. PRUint32 flags; // Additional type info for user defined events nsCOMPtr<nsIAtom> userType; // Event targets, needed by DOM Events // Using nsISupports, not nsIDOMEventTarget because in some cases // nsIDOMEventTarget is implemented as a tearoff. nsCOMPtr<nsISupports> target; nsCOMPtr<nsISupports> currentTarget; nsCOMPtr<nsISupports> originalTarget; };
べつのスレッドにdispatchさせるのは可能そう。
だからやっぱりmEventCallbackを探る。
~/mozilla/xpfe/appshell/src/nsWebShellWindow.cpp
mWindow->SetClientData(this); mWindow->Create((nsIWidget *)parentWidget, // Parent nsIWidget r, // Widget dimensions nsWebShellWindow::HandleEvent, // Event handler function nsnull, // Device context aShell, // Application shell nsnull, // nsIToolkit &widgetInitData); // Widget initialization data mWindow->GetClientBounds(r); mWindow->SetBackgroundColor(NS_RGB(192,192,192));
こっちが正しいみたい。
でもウインドウのリサイズとかの処理をしてるだけでキーイベントとか書いてない。
/* * Event handler function... * * This function is called to process events for the nsIWidget of the * nsWebShellWindow... */ nsEventStatus PR_CALLBACK nsWebShellWindow::HandleEvent(nsGUIEvent *aEvent) {
もっかいやりなおしかな.....
tools/tests/win32/inbox これみる。
~/mozilla/view/src/nsView.cpp
nsresult nsIView::CreateWidget(const nsIID &aWindowIID, nsWidgetInitData *aWidgetInitData, nsNativeWidget aNative, PRBool aEnableDragDrop, PRBool aResetVisibility, nsContentType aContentType) { ..... if (aNative) mWindow->Create(aNative, trect, ::HandleEvent, dx, nsnull, nsnull, aWidgetInitData); else {
こいつがCreateしてmEventCallbackを設定していると思われる。
// // Main events handler // nsEventStatus PR_CALLBACK HandleEvent(nsGUIEvent *aEvent) { //printf(" %d %d %d (%d,%d) \n", aEvent->widget, aEvent->widgetSupports, // aEvent->message, aEvent->point.x, aEvent->point.y); nsEventStatus result = nsEventStatus_eIgnore; nsView *view = nsView::GetViewFor(aEvent->widget); if (view) { view->GetViewManager()->DispatchEvent(aEvent, &result); } return result; }
おおお、これいかんじだ。
~/mozilla/view/src/nsViewManager.cpp
NS_IMETHODIMP nsViewManager::DispatchEvent(nsGUIEvent *aEvent, nsEventStatus *aStatus)
{
...........
default:
{
if ((NS_IS_MOUSE_EVENT(aEvent) &&
// Ignore moves that we synthesize.
static_cast<nsMouseEvent*>(aEvent)->reason ==
nsMouseEvent::eReal &&
// Ignore mouse exit and enter (we'll get moves if the user
// is really moving the mouse) since we get them when we
// create and destroy widgets.
aEvent->message != NS_MOUSE_EXIT &&
aEvent->message != NS_MOUSE_ENTER) ||
NS_IS_KEY_EVENT(aEvent) ||
NS_IS_IME_EVENT(aEvent)) {
gLastUserEventTime = PR_IntervalToMicroseconds(PR_IntervalNow());
}
時間はかってるだけ。まったく意味なし....
~/mozilla/layout/base/nsPresShell.cpp
NS_IMETHODIMP
PresShell::HandleEvent(nsIView *aView,
nsGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
.........
} else {
// Focus events need to be dispatched even if no frame was found, since
// we don't want the focus controller to be out of sync.
if (!NS_EVENT_NEEDS_FRAME(aEvent)) {
mCurrentEventFrame = nsnull;
return HandleEventInternal(aEvent, aView, aEventStatus);
}
else if (NS_IS_KEY_EVENT(aEvent)) {
// Keypress events in new blank tabs should not be completely thrown away.
// Retarget them -- the parent chrome shell might make use of them.
return RetargetEventToParent(aEvent, aEventStatus);
}
}
nsresult
PresShell::HandleEventInternal(nsEvent* aEvent, nsIView *aView,
nsEventStatus* aStatus)
{
nsCOMPtr<nsIEventStateManager> manager = mPresContext->EventStateManager();
nsresult rv = NS_OK;
// FIXME. If the event was reused, we need to clear the old target,
// bug 329430
aEvent->target = nsnull;
// 1. Give event to event manager for pre event state changes and
// generation of synthetic events.
rv = manager->PreHandleEvent(mPresContext, aEvent, mCurrentEventFrame,
aStatus, aView);
// 2. Give event to the DOM for third party and JS use.
if ((GetCurrentEventFrame()) && NS_SUCCEEDED(rv)) {
// We want synthesized mouse moves to cause mouseover and mouseout
// DOM events (PreHandleEvent above), but not mousemove DOM events.
if (!IsSynthesizedMouseMove(aEvent)) {
nsPresShellEventCB eventCB(this);
if (mCurrentEventContent) {
nsEventDispatcher::Dispatch(mCurrentEventContent, mPresContext,
aEvent, nsnull, aStatus, &eventCB);
}
else {
nsCOMPtr<nsIContent> targetContent;
rv = mCurrentEventFrame->GetContentForEvent(mPresContext, aEvent,
getter_AddRefs(targetContent));
if (NS_SUCCEEDED(rv) && targetContent) {
nsEventDispatcher::Dispatch(targetContent, mPresContext, aEvent,
nsnull, aStatus, &eventCB);
} else if (mDocument) {
nsEventDispatcher::Dispatch(mDocument, mPresContext, aEvent,
nsnull, aStatus, nsnull);
}
}
}
// 3. Give event to event manager for post event state changes and
// generation of synthetic events.
if (NS_SUCCEEDED (rv) &&
(GetCurrentEventFrame() || !NS_EVENT_NEEDS_FRAME(aEvent))) {
rv = manager->PostHandleEvent(mPresContext, aEvent, mCurrentEventFrame,
aStatus, aView);
}
}
}
あれ、これけっきょく直接イベントハンドラ呼ぶんだけど.....
と思ったら違うかも。
~/mozilla/content/events/src/nsEventStateManager.cpp
NS_IMETHODIMP
nsEventStateManager::PreHandleEvent(nsPresContext* aPresContext,
nsEvent *aEvent,
nsIFrame* aTargetFrame,
nsEventStatus* aStatus,
nsIView* aView)
{
........
case NS_KEY_DOWN:
case NS_KEY_UP:
{
if (mCurrentFocus) {
mCurrentTargetContent = mCurrentFocus;
}
}
関係ない。ターゲットはフレームとかのことでスレッドじゃない。
うーん、OSからキーボードが押されたメッセージを受け取ってるスレッドがjsのハンドラを実行しているように見える。
でもそれだと::Runのループを回ってないはず。
nsEventDispatcher::Dispatch
はいろんなところから呼ばれてるなー。
~/mozilla/content/html/content/src/nsHTMLInputElement.cpp
void nsHTMLInputElement::FireOnChange() { // // Since the value is changing, send out an onchange event (bug 23571) // nsEventStatus status = nsEventStatus_eIgnore; nsEvent event(PR_TRUE, NS_FORM_CHANGE); nsCOMPtr<nsPresContext> presContext = GetPresContext(); nsEventDispatcher::Dispatch(static_cast<nsIContent*>(this), presContext, &event, nsnull, &status); }
そもそもdispatchする段階でターゲットのスレッド情報なんかはない。だからそれより前の段階でターゲットのスレッドにスイッチしてる。
もうよくわかんないけどproxyObject経由でてきとうにメソッド呼び出せばいいかな。それでいけるはず。
