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Bug 719320 part.13 Replace legacy mouse scroll event dispatchers with D3E wheel event dispatcher on GTK r=karlt

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This commit is contained in:
Masayuki Nakano 2012-08-12 10:42:37 +09:00
parent f4626c0cee
commit 227be1a7d1
1 changed files with 19 additions and 32 deletions
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51
widget/gtk2/nsWindow.cpp
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@ -114,6 +114,8 @@ extern "C" {
#include "nsShmImage.h"
#include "nsIDOMWheelEvent.h"
using namespace mozilla;
using namespace mozilla::widget;
using mozilla::gl::GLContext;
@ -2746,23 +2748,8 @@ nsWindow::OnButtonPressEvent(GtkWidget *aWidget, GdkEventButton *aEvent)
// These are mapped to horizontal scroll
case 6:
case 7:
{
nsMouseScrollEvent event(true, NS_MOUSE_SCROLL, this);
event.pressure = mLastMotionPressure;
event.scrollFlags = nsMouseScrollEvent::kIsHorizontal;
event.refPoint.x = nscoord(aEvent->x);
event.refPoint.y = nscoord(aEvent->y);
// XXX Why is this delta value different from the scroll event?
event.delta = (aEvent->button == 6) ? -2 : 2;
KeymapWrapper::InitInputEvent(event, aEvent->state);
event.time = aEvent->time;
nsEventStatus status;
DispatchEvent(&event, status);
return;
}
NS_WARNING("We're not supporting legacy horizontal scroll event");
return;
// Map buttons 8-9 to back/forward
case 8:
DispatchCommandEvent(nsGkAtoms::Back);
@ -3124,44 +3111,44 @@ nsWindow::OnScrollEvent(GtkWidget *aWidget, GdkEventScroll *aEvent)
if (gConsumeRollupEvent && rolledUp)
return;
nsMouseScrollEvent event(true, NS_MOUSE_SCROLL, this);
WheelEvent wheelEvent(true, NS_WHEEL_WHEEL, this);
wheelEvent.deltaMode = nsIDOMWheelEvent::DOM_DELTA_LINE;
switch (aEvent->direction) {
case GDK_SCROLL_UP:
event.scrollFlags = nsMouseScrollEvent::kIsVertical;
event.delta = -3;
wheelEvent.deltaY = wheelEvent.lineOrPageDeltaY = -3;
break;
case GDK_SCROLL_DOWN:
event.scrollFlags = nsMouseScrollEvent::kIsVertical;
event.delta = 3;
wheelEvent.deltaY = wheelEvent.lineOrPageDeltaY = 3;
break;
case GDK_SCROLL_LEFT:
event.scrollFlags = nsMouseScrollEvent::kIsHorizontal;
event.delta = -1;
wheelEvent.deltaX = wheelEvent.lineOrPageDeltaX = -1;
break;
case GDK_SCROLL_RIGHT:
event.scrollFlags = nsMouseScrollEvent::kIsHorizontal;
event.delta = 1;
wheelEvent.deltaX = wheelEvent.lineOrPageDeltaX = 1;
break;
}
NS_ASSERTION(wheelEvent.deltaX || wheelEvent.deltaY,
"deltaX or deltaY must be non-zero");
if (aEvent->window == mGdkWindow) {
// we are the window that the event happened on so no need for expensive WidgetToScreenOffset
event.refPoint.x = nscoord(aEvent->x);
event.refPoint.y = nscoord(aEvent->y);
wheelEvent.refPoint.x = nscoord(aEvent->x);
wheelEvent.refPoint.y = nscoord(aEvent->y);
} else {
// XXX we're never quite sure which GdkWindow the event came from due to our custom bubbling
// in scroll_event_cb(), so use ScreenToWidget to translate the screen root coordinates into
// coordinates relative to this widget.
nsIntPoint point(NSToIntFloor(aEvent->x_root), NSToIntFloor(aEvent->y_root));
event.refPoint = point - WidgetToScreenOffset();
wheelEvent.refPoint = point - WidgetToScreenOffset();
}
KeymapWrapper::InitInputEvent(event, aEvent->state);
KeymapWrapper::InitInputEvent(wheelEvent, aEvent->state);
event.time = aEvent->time;
wheelEvent.time = aEvent->time;
nsEventStatus status;
DispatchEvent(&event, status);
DispatchEvent(&wheelEvent, status);
}
void