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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsFormControlFrame.h"
#include "nsGkAtoms.h"
#include "nsLayoutUtils.h"
#include "nsIDOMHTMLInputElement.h"
#include "mozilla/EventStateManager.h"
#include "mozilla/LookAndFeel.h"
#include "nsDeviceContext.h"
#include "nsIContent.h"
using namespace mozilla;
//#define FCF_NOISY
nsFormControlFrame::nsFormControlFrame(nsStyleContext* aContext)
: nsAtomicContainerFrame(aContext)
{
}
nsFormControlFrame::~nsFormControlFrame()
{
}
nsIAtom*
nsFormControlFrame::GetType() const
{
return nsGkAtoms::formControlFrame;
}
void
nsFormControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
// Unregister the access key registered in reflow
nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
nsAtomicContainerFrame::DestroyFrom(aDestructRoot);
}
NS_QUERYFRAME_HEAD(nsFormControlFrame)
NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
NS_QUERYFRAME_TAIL_INHERITING(nsAtomicContainerFrame)
/* virtual */ nscoord
nsFormControlFrame::GetMinISize(nsRenderingContext *aRenderingContext)
{
nscoord result;
DISPLAY_MIN_WIDTH(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */ nscoord
nsFormControlFrame::GetPrefISize(nsRenderingContext *aRenderingContext)
{
nscoord result;
DISPLAY_PREF_WIDTH(this, result);
result = GetIntrinsicISize();
return result;
}
/* virtual */
LogicalSize
nsFormControlFrame::ComputeAutoSize(nsRenderingContext* aRenderingContext,
WritingMode aWM,
const LogicalSize& aCBSize,
nscoord aAvailableISize,
const LogicalSize& aMargin,
const LogicalSize& aBorder,
const LogicalSize& aPadding,
ComputeSizeFlags aFlags)
{
const WritingMode wm = GetWritingMode();
LogicalSize result(wm, GetIntrinsicISize(), GetIntrinsicBSize());
return result.ConvertTo(aWM, wm);
}
nscoord
nsFormControlFrame::GetIntrinsicISize()
{
// Provide a reasonable default for sites that use an "auto" height.
// Note that if you change this, you should change the values in forms.css
// as well. This is the 13px default width minus the 2px default border.
return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
}
nscoord
nsFormControlFrame::GetIntrinsicBSize()
{
// Provide a reasonable default for sites that use an "auto" height.
// Note that if you change this, you should change the values in forms.css
// as well. This is the 13px default width minus the 2px default border.
return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
}
nscoord
nsFormControlFrame::GetLogicalBaseline(WritingMode aWritingMode) const
{
NS_ASSERTION(!NS_SUBTREE_DIRTY(this),
"frame must not be dirty");
// Treat radio buttons and checkboxes as having an intrinsic baseline
// at the block-end of the control (use the block-end content edge rather
// than the margin edge).
// For "inverted" lines (typically in writing-mode:vertical-lr), use the
// block-start end instead.
return aWritingMode.IsLineInverted()
? GetLogicalUsedBorderAndPadding(aWritingMode).BStart(aWritingMode)
: BSize(aWritingMode) -
GetLogicalUsedBorderAndPadding(aWritingMode).BEnd(aWritingMode);
}
void
nsFormControlFrame::Reflow(nsPresContext* aPresContext,
ReflowOutput& aDesiredSize,
const ReflowInput& aReflowInput,
nsReflowStatus& aStatus)
{
MarkInReflow();
DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame");
DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus);
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("enter nsFormControlFrame::Reflow: aMaxSize=%d,%d",
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
if (mState & NS_FRAME_FIRST_REFLOW) {
RegUnRegAccessKey(static_cast<nsIFrame*>(this), true);
}
aStatus = NS_FRAME_COMPLETE;
aDesiredSize.SetSize(aReflowInput.GetWritingMode(),
aReflowInput.ComputedSizeWithBorderPadding());
if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
float inflation = nsLayoutUtils::FontSizeInflationFor(this);
aDesiredSize.Width() *= inflation;
aDesiredSize.Height() *= inflation;
}
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
("exit nsFormControlFrame::Reflow: size=%d,%d",
aDesiredSize.Width(), aDesiredSize.Height()));
NS_FRAME_SET_TRUNCATION(aStatus, aReflowInput, aDesiredSize);
aDesiredSize.SetOverflowAreasToDesiredBounds();
FinishAndStoreOverflow(&aDesiredSize);
}
nsresult
nsFormControlFrame::RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg)
{
NS_ENSURE_ARG_POINTER(aFrame);
nsPresContext* presContext = aFrame->PresContext();
NS_ASSERTION(presContext, "aPresContext is NULL in RegUnRegAccessKey!");
nsAutoString accessKey;
nsIContent* content = aFrame->GetContent();
content->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
if (!accessKey.IsEmpty()) {
EventStateManager* stateManager = presContext->EventStateManager();
if (aDoReg) {
stateManager->RegisterAccessKey(content, (uint32_t)accessKey.First());
} else {
stateManager->UnregisterAccessKey(content, (uint32_t)accessKey.First());
}
return NS_OK;
}
return NS_ERROR_FAILURE;
}
void
nsFormControlFrame::SetFocus(bool aOn, bool aRepaint)
{
}
nsresult
nsFormControlFrame::HandleEvent(nsPresContext* aPresContext,
WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus)
{
// Check for user-input:none style
const nsStyleUserInterface* uiStyle = StyleUserInterface();
if (uiStyle->mUserInput == StyleUserInput::None ||
uiStyle->mUserInput == StyleUserInput::Disabled) {
return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
return NS_OK;
}
void
nsFormControlFrame::GetCurrentCheckState(bool *aState)
{
nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
if (inputElement) {
inputElement->GetChecked(aState);
}
}
nsresult
nsFormControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
{
return NS_OK;
}
// static
nsRect
nsFormControlFrame::GetUsableScreenRect(nsPresContext* aPresContext)
{
nsRect screen;
nsDeviceContext *context = aPresContext->DeviceContext();
int32_t dropdownCanOverlapOSBar =
LookAndFeel::GetInt(LookAndFeel::eIntID_MenusCanOverlapOSBar, 0);
if ( dropdownCanOverlapOSBar )
context->GetRect(screen);
else
context->GetClientRect(screen);
return screen;
}
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