mirror of
https://github.com/mozilla/gecko-dev.git
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176 lines
5.1 KiB
C++
176 lines
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsFormControlFrame.h"
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#include "nsGkAtoms.h"
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#include "nsLayoutUtils.h"
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#include "nsIDOMHTMLInputElement.h"
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#include "mozilla/EventStateManager.h"
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#include "mozilla/LookAndFeel.h"
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#include "nsDeviceContext.h"
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using namespace mozilla;
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//#define FCF_NOISY
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nsFormControlFrame::nsFormControlFrame(nsStyleContext* aContext) :
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nsLeafFrame(aContext)
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{
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}
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nsFormControlFrame::~nsFormControlFrame()
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{
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}
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nsIAtom*
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nsFormControlFrame::GetType() const
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{
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return nsGkAtoms::formControlFrame;
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}
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void
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nsFormControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
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{
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// Unregister the access key registered in reflow
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nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
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nsLeafFrame::DestroyFrom(aDestructRoot);
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}
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NS_QUERYFRAME_HEAD(nsFormControlFrame)
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NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsLeafFrame)
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NS_IMPL_FRAMEARENA_HELPERS(nsFormControlFrame)
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nscoord
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nsFormControlFrame::GetIntrinsicISize()
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{
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// Provide a reasonable default for sites that use an "auto" height.
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// Note that if you change this, you should change the values in forms.css
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// as well. This is the 13px default width minus the 2px default border.
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return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
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}
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nscoord
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nsFormControlFrame::GetIntrinsicBSize()
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{
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// Provide a reasonable default for sites that use an "auto" height.
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// Note that if you change this, you should change the values in forms.css
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// as well. This is the 13px default width minus the 2px default border.
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return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
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}
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nscoord
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nsFormControlFrame::GetLogicalBaseline(WritingMode aWritingMode) const
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{
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NS_ASSERTION(!NS_SUBTREE_DIRTY(this),
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"frame must not be dirty");
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// Treat radio buttons and checkboxes as having an intrinsic baseline
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// at the bottom of the control (use the bottom content edge rather
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// than the bottom margin edge).
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return BSize(aWritingMode) -
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GetLogicalUsedBorderAndPadding(aWritingMode).BEnd(aWritingMode);
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}
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void
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nsFormControlFrame::Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame");
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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if (mState & NS_FRAME_FIRST_REFLOW) {
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RegUnRegAccessKey(static_cast<nsIFrame*>(this), true);
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}
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nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState, aStatus);
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if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
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float inflation = nsLayoutUtils::FontSizeInflationFor(this);
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aDesiredSize.Width() *= inflation;
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aDesiredSize.Height() *= inflation;
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aDesiredSize.UnionOverflowAreasWithDesiredBounds();
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FinishAndStoreOverflow(&aDesiredSize);
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}
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}
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nsresult
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nsFormControlFrame::RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg)
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{
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NS_ENSURE_ARG_POINTER(aFrame);
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nsPresContext* presContext = aFrame->PresContext();
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NS_ASSERTION(presContext, "aPresContext is NULL in RegUnRegAccessKey!");
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nsAutoString accessKey;
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nsIContent* content = aFrame->GetContent();
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content->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
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if (!accessKey.IsEmpty()) {
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EventStateManager* stateManager = presContext->EventStateManager();
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if (aDoReg) {
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stateManager->RegisterAccessKey(content, (uint32_t)accessKey.First());
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} else {
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stateManager->UnregisterAccessKey(content, (uint32_t)accessKey.First());
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}
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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void
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nsFormControlFrame::SetFocus(bool aOn, bool aRepaint)
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{
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}
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nsresult
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nsFormControlFrame::HandleEvent(nsPresContext* aPresContext,
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WidgetGUIEvent* aEvent,
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nsEventStatus* aEventStatus)
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{
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// Check for user-input:none style
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const nsStyleUserInterface* uiStyle = StyleUserInterface();
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if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
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uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
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return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
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return NS_OK;
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}
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void
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nsFormControlFrame::GetCurrentCheckState(bool *aState)
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{
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nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
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if (inputElement) {
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inputElement->GetChecked(aState);
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}
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}
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nsresult
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nsFormControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
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{
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return NS_OK;
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}
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// static
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nsRect
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nsFormControlFrame::GetUsableScreenRect(nsPresContext* aPresContext)
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{
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nsRect screen;
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nsDeviceContext *context = aPresContext->DeviceContext();
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int32_t dropdownCanOverlapOSBar =
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LookAndFeel::GetInt(LookAndFeel::eIntID_MenusCanOverlapOSBar, 0);
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if ( dropdownCanOverlapOSBar )
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context->GetRect(screen);
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else
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context->GetClientRect(screen);
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return screen;
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}
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