1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/forms/nsFormControlFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,179 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsFormControlFrame.h"
1.10 +#include "nsGkAtoms.h"
1.11 +#include "nsLayoutUtils.h"
1.12 +#include "nsIDOMHTMLInputElement.h"
1.13 +#include "mozilla/EventStateManager.h"
1.14 +#include "mozilla/LookAndFeel.h"
1.15 +#include "nsDeviceContext.h"
1.16 +
1.17 +using namespace mozilla;
1.18 +
1.19 +//#define FCF_NOISY
1.20 +
1.21 +nsFormControlFrame::nsFormControlFrame(nsStyleContext* aContext) :
1.22 + nsLeafFrame(aContext)
1.23 +{
1.24 +}
1.25 +
1.26 +nsFormControlFrame::~nsFormControlFrame()
1.27 +{
1.28 +}
1.29 +
1.30 +nsIAtom*
1.31 +nsFormControlFrame::GetType() const
1.32 +{
1.33 + return nsGkAtoms::formControlFrame;
1.34 +}
1.35 +
1.36 +void
1.37 +nsFormControlFrame::DestroyFrom(nsIFrame* aDestructRoot)
1.38 +{
1.39 + // Unregister the access key registered in reflow
1.40 + nsFormControlFrame::RegUnRegAccessKey(static_cast<nsIFrame*>(this), false);
1.41 + nsLeafFrame::DestroyFrom(aDestructRoot);
1.42 +}
1.43 +
1.44 +NS_QUERYFRAME_HEAD(nsFormControlFrame)
1.45 + NS_QUERYFRAME_ENTRY(nsIFormControlFrame)
1.46 +NS_QUERYFRAME_TAIL_INHERITING(nsLeafFrame)
1.47 +
1.48 +NS_IMPL_FRAMEARENA_HELPERS(nsFormControlFrame)
1.49 +
1.50 +nscoord
1.51 +nsFormControlFrame::GetIntrinsicWidth()
1.52 +{
1.53 + // Provide a reasonable default for sites that use an "auto" height.
1.54 + // Note that if you change this, you should change the values in forms.css
1.55 + // as well. This is the 13px default width minus the 2px default border.
1.56 + return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
1.57 +}
1.58 +
1.59 +nscoord
1.60 +nsFormControlFrame::GetIntrinsicHeight()
1.61 +{
1.62 + // Provide a reasonable default for sites that use an "auto" height.
1.63 + // Note that if you change this, you should change the values in forms.css
1.64 + // as well. This is the 13px default width minus the 2px default border.
1.65 + return nsPresContext::CSSPixelsToAppUnits(13 - 2 * 2);
1.66 +}
1.67 +
1.68 +nscoord
1.69 +nsFormControlFrame::GetBaseline() const
1.70 +{
1.71 + NS_ASSERTION(!NS_SUBTREE_DIRTY(this),
1.72 + "frame must not be dirty");
1.73 + // Treat radio buttons and checkboxes as having an intrinsic baseline
1.74 + // at the bottom of the control (use the bottom content edge rather
1.75 + // than the bottom margin edge).
1.76 + return mRect.height - GetUsedBorderAndPadding().bottom;
1.77 +}
1.78 +
1.79 +nsresult
1.80 +nsFormControlFrame::Reflow(nsPresContext* aPresContext,
1.81 + nsHTMLReflowMetrics& aDesiredSize,
1.82 + const nsHTMLReflowState& aReflowState,
1.83 + nsReflowStatus& aStatus)
1.84 +{
1.85 + DO_GLOBAL_REFLOW_COUNT("nsFormControlFrame");
1.86 + DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
1.87 +
1.88 + if (mState & NS_FRAME_FIRST_REFLOW) {
1.89 + RegUnRegAccessKey(static_cast<nsIFrame*>(this), true);
1.90 + }
1.91 +
1.92 + nsresult rv = nsLeafFrame::Reflow(aPresContext, aDesiredSize, aReflowState,
1.93 + aStatus);
1.94 + if (NS_FAILED(rv)) {
1.95 + return rv;
1.96 + }
1.97 +
1.98 + if (nsLayoutUtils::FontSizeInflationEnabled(aPresContext)) {
1.99 + float inflation = nsLayoutUtils::FontSizeInflationFor(this);
1.100 + aDesiredSize.Width() *= inflation;
1.101 + aDesiredSize.Height() *= inflation;
1.102 + aDesiredSize.UnionOverflowAreasWithDesiredBounds();
1.103 + FinishAndStoreOverflow(&aDesiredSize);
1.104 + }
1.105 + return NS_OK;
1.106 +}
1.107 +
1.108 +nsresult
1.109 +nsFormControlFrame::RegUnRegAccessKey(nsIFrame * aFrame, bool aDoReg)
1.110 +{
1.111 + NS_ENSURE_ARG_POINTER(aFrame);
1.112 +
1.113 + nsPresContext* presContext = aFrame->PresContext();
1.114 +
1.115 + NS_ASSERTION(presContext, "aPresContext is NULL in RegUnRegAccessKey!");
1.116 +
1.117 + nsAutoString accessKey;
1.118 +
1.119 + nsIContent* content = aFrame->GetContent();
1.120 + content->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accessKey);
1.121 + if (!accessKey.IsEmpty()) {
1.122 + EventStateManager* stateManager = presContext->EventStateManager();
1.123 + if (aDoReg) {
1.124 + stateManager->RegisterAccessKey(content, (uint32_t)accessKey.First());
1.125 + } else {
1.126 + stateManager->UnregisterAccessKey(content, (uint32_t)accessKey.First());
1.127 + }
1.128 + return NS_OK;
1.129 + }
1.130 + return NS_ERROR_FAILURE;
1.131 +}
1.132 +
1.133 +void
1.134 +nsFormControlFrame::SetFocus(bool aOn, bool aRepaint)
1.135 +{
1.136 +}
1.137 +
1.138 +nsresult
1.139 +nsFormControlFrame::HandleEvent(nsPresContext* aPresContext,
1.140 + WidgetGUIEvent* aEvent,
1.141 + nsEventStatus* aEventStatus)
1.142 +{
1.143 + // Check for user-input:none style
1.144 + const nsStyleUserInterface* uiStyle = StyleUserInterface();
1.145 + if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
1.146 + uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
1.147 + return nsFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
1.148 +
1.149 + return NS_OK;
1.150 +}
1.151 +
1.152 +void
1.153 +nsFormControlFrame::GetCurrentCheckState(bool *aState)
1.154 +{
1.155 + nsCOMPtr<nsIDOMHTMLInputElement> inputElement = do_QueryInterface(mContent);
1.156 + if (inputElement) {
1.157 + inputElement->GetChecked(aState);
1.158 + }
1.159 +}
1.160 +
1.161 +nsresult
1.162 +nsFormControlFrame::SetFormProperty(nsIAtom* aName, const nsAString& aValue)
1.163 +{
1.164 + return NS_OK;
1.165 +}
1.166 +
1.167 +// static
1.168 +nsRect
1.169 +nsFormControlFrame::GetUsableScreenRect(nsPresContext* aPresContext)
1.170 +{
1.171 + nsRect screen;
1.172 +
1.173 + nsDeviceContext *context = aPresContext->DeviceContext();
1.174 + int32_t dropdownCanOverlapOSBar =
1.175 + LookAndFeel::GetInt(LookAndFeel::eIntID_MenusCanOverlapOSBar, 0);
1.176 + if ( dropdownCanOverlapOSBar )
1.177 + context->GetRect(screen);
1.178 + else
1.179 + context->GetClientRect(screen);
1.180 +
1.181 + return screen;
1.182 +}
