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