The Tor Browser: layout/forms/nsFormControlFrame.cpp@b8a032363ba2 (annotated)

layout/forms/nsFormControlFrame.cpp@b8a032363ba2 (annotated)

layout/forms/nsFormControlFrame.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- 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"
 using namespace mozilla;
 //#define FCF_NOISY
 nsFormControlFrame::nsFormControlFrame(nsStyleContext* aContext) :
   nsLeafFrame(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);
   nsLeafFrame::DestroyFrom(aDestructRoot);
 }
 NS_QUERYFRAME_HEAD(nsFormControlFrame)
   NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
 NS_QUERYFRAME_TAIL_INHERITING(nsLeafFrame)
 NS_IMPL_FRAMEARENA_HELPERS(nsFormControlFrame)
 nscoord
 nsFormControlFrame::GetIntrinsicWidth()
 {
   // 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::GetIntrinsicHeight()
 {
   // 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::GetBaseline() const
 {
   NS_ASSERTION(!NS_SUBTREE_DIRTY(this),
                "frame must not be dirty");
   // Treat radio buttons and checkboxes as having an intrinsic baseline
   // at the bottom of the control (use the bottom content edge rather
   // than the bottom margin edge).
   return mRect.height - GetUsedBorderAndPadding().bottom;
 }
 nsresult
 nsFormControlFrame::Reflow(nsPresContext*          aPresContext,
                            nsHTMLReflowMetrics&     aDesiredSize,
                            const nsHTMLReflowState& aReflowState,
                            nsReflowStatus&          aStatus)
 {
   DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame");
   DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
   if (mState & NS_FRAME_FIRST_REFLOW) {
     RegUnRegAccessKey(static_cast<nsIFrame*>(this), true);
   }
   nsresult rv = nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
                                     aStatus);
   if (NS_FAILED(rv)) {
     return rv;
   }
   if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
     float inflation = nsLayoutUtils::FontSizeInflationFor(this);
     aDesiredSize.Width() *= inflation;
     aDesiredSize.Height() *= inflation;
     aDesiredSize.UnionOverflowAreasWithDesiredBounds();
     FinishAndStoreOverflow(&aDesiredSize);
   }
   return NS_OK;
 }
 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 == NS_STYLE_USER_INPUT_NONE ||
       uiStyle->mUserInput == NS_STYLE_USER_INPUT_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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layout/forms/nsFormControlFrame.cpp@b8a032363ba2 (annotated)

layout/forms/nsFormControlFrame.cpp