bool KeyboardEvent::getModifierState(const String& keyIdentifier) const
{
if (keyIdentifier == "Control")
return ctrlKey();
if (keyIdentifier == "Shift")
return shiftKey();
if (keyIdentifier == "Alt")
return altKey();
if (keyIdentifier == "Meta")
return metaKey();
return false;
}
bool KeyboardEvent::getModifierState(const String& keyIdentifier) const
{
// FIXME: The following keyIdentifiers are not supported yet (crbug.com/265458):
// "AltGraph", "CapsLock", "Fn", "NumLock", "ScrollLock", "SymbolLock", "OS".
if (keyIdentifier == "Control")
return ctrlKey();
if (keyIdentifier == "Shift")
return shiftKey();
if (keyIdentifier == "Alt")
return altKey();
if (keyIdentifier == "Meta")
return metaKey();
return false;
}
PassRefPtr<Event> MouseEvent::cloneFor(HTMLIFrameElement* iframe) const
{
ASSERT(iframe);
RefPtr<MouseEvent> clonedMouseEvent = MouseEvent::create();
Frame* frame = iframe->document().frame();
FrameView* frameView = frame ? frame->view() : 0;
clonedMouseEvent->initMouseEvent(type(), bubbles(), cancelable(),
iframe->document().defaultView(),
detail(), screenX(), screenY(),
frameView ? adjustedClientX(clientX(), iframe, frameView) : 0,
frameView ? adjustedClientY(clientY(), iframe, frameView) : 0,
ctrlKey(), altKey(), shiftKey(), metaKey(),
button(),
// Nullifies relatedTarget.
0);
return clonedMouseEvent.release();
}
bool KeyboardEvent::getModifierState(const String& keyIdentifier) const
{
if (keyIdentifier == "Control")
return ctrlKey();
if (keyIdentifier == "Shift")
return shiftKey();
if (keyIdentifier == "Alt")
return altKey();
if (keyIdentifier == "Meta")
return metaKey();
if (keyIdentifier == "AltGraph")
return altGraphKey();
if (keyIdentifier == "CapsLock")
return capsLockKey();
// FIXME: The specification also has Fn, FnLock, Hyper, NumLock, Super, ScrollLock, Symbol, SymbolLock.
return false;
}
Ref<Event> MouseEvent::cloneFor(HTMLIFrameElement* iframe) const
{
ASSERT(iframe);
Frame* frame = iframe->document().frame();
FrameView* frameView = frame ? frame->view() : nullptr;
Ref<MouseEvent> clonedMouseEvent = MouseEvent::create(type(), bubbles(), cancelable(),
iframe->document().defaultView(),
detail(), screenX(), screenY(),
frameView ? adjustedClientX(clientX(), iframe, frameView) : 0,
frameView ? adjustedClientY(clientY(), iframe, frameView) : 0,
ctrlKey(), altKey(), shiftKey(), metaKey(),
button(),
syntheticClickType(),
// Nullifies relatedTarget.
0);
clonedMouseEvent->setForce(force());
return WTFMove(clonedMouseEvent);
}
PlatformWheelEvent::PlatformWheelEvent(HWND hWnd, WPARAM wParam, LPARAM lParam, bool isMouseHWheel)
: PlatformEvent(PlatformEvent::Wheel, wParam & MK_SHIFT, wParam & MK_CONTROL, GetKeyState(VK_MENU) & HIGH_BIT_MASK_SHORT, GetKeyState(VK_MENU) & HIGH_BIT_MASK_SHORT, ::GetTickCount() * 0.001)
, m_position(positionForEvent(hWnd, lParam))
, m_globalPosition(globalPositionForEvent(hWnd, lParam))
, m_directionInvertedFromDevice(false)
{
float scaleFactor = deviceScaleFactorForWindow(hWnd);
// How many pixels should we scroll per line? Gecko uses the height of the
// current line, which means scroll distance changes as you go through the
// page or go to different pages. IE 7 is ~50 px/line, although the value
// seems to vary slightly by page and zoom level. Since IE 7 has a
// smoothing algorithm on scrolling, it can get away with slightly larger
// scroll values without feeling jerky. Here we use 100 px per three lines
// (the default scroll amount on Windows is three lines per wheel tick).
static const float cScrollbarPixelsPerLine = scaleFactor * 100.0f / 3.0f;
float delta = GET_WHEEL_DELTA_WPARAM(wParam) / (scaleFactor * static_cast<float>(WHEEL_DELTA));
if (isMouseHWheel) {
// Windows is <-- -/+ -->, WebKit wants <-- +/- -->, so we negate
// |delta| after saving the original value on the wheel tick member.
m_wheelTicksX = delta;
m_wheelTicksY = 0;
delta = -delta;
} else {
// Even though we use shift + vertical wheel to scroll horizontally in
// WebKit, we still note it as a vertical scroll on the wheel tick
// member, so that the DOM event we later construct will match the real
// hardware event better.
m_wheelTicksX = 0;
m_wheelTicksY = delta;
}
if (isMouseHWheel || shiftKey()) {
m_deltaX = delta * static_cast<float>(horizontalScrollChars()) * cScrollbarPixelsPerLine;
m_deltaY = 0;
m_granularity = ScrollByPixelWheelEvent;
} else {
m_deltaX = 0;
m_deltaY = delta;
int verticalMultiplier = verticalScrollLines();
m_granularity = (verticalMultiplier == WHEEL_PAGESCROLL) ? ScrollByPageWheelEvent : ScrollByPixelWheelEvent;
if (m_granularity == ScrollByPixelWheelEvent)
m_deltaY *= static_cast<float>(verticalMultiplier) * cScrollbarPixelsPerLine;
}
}
