1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/xul/nsButtonBoxFrame.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,155 @@
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 +#include "nsCOMPtr.h"
1.9 +#include "nsButtonBoxFrame.h"
1.10 +#include "nsIContent.h"
1.11 +#include "nsIDOMNodeList.h"
1.12 +#include "nsIDOMXULButtonElement.h"
1.13 +#include "nsGkAtoms.h"
1.14 +#include "nsNameSpaceManager.h"
1.15 +#include "nsPresContext.h"
1.16 +#include "nsIPresShell.h"
1.17 +#include "nsIDOMElement.h"
1.18 +#include "nsDisplayList.h"
1.19 +#include "nsContentUtils.h"
1.20 +#include "mozilla/dom/Element.h"
1.21 +#include "mozilla/EventStateManager.h"
1.22 +#include "mozilla/EventStates.h"
1.23 +#include "mozilla/MouseEvents.h"
1.24 +#include "mozilla/TextEvents.h"
1.25 +
1.26 +using namespace mozilla;
1.27 +
1.28 +//
1.29 +// NS_NewXULButtonFrame
1.30 +//
1.31 +// Creates a new Button frame and returns it
1.32 +//
1.33 +nsIFrame*
1.34 +NS_NewButtonBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
1.35 +{
1.36 + return new (aPresShell) nsButtonBoxFrame(aPresShell, aContext);
1.37 +}
1.38 +
1.39 +NS_IMPL_FRAMEARENA_HELPERS(nsButtonBoxFrame)
1.40 +
1.41 +void
1.42 +nsButtonBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
1.43 + const nsRect& aDirtyRect,
1.44 + const nsDisplayListSet& aLists)
1.45 +{
1.46 + // override, since we don't want children to get events
1.47 + if (aBuilder->IsForEventDelivery())
1.48 + return;
1.49 + nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
1.50 +}
1.51 +
1.52 +nsresult
1.53 +nsButtonBoxFrame::HandleEvent(nsPresContext* aPresContext,
1.54 + WidgetGUIEvent* aEvent,
1.55 + nsEventStatus* aEventStatus)
1.56 +{
1.57 + NS_ENSURE_ARG_POINTER(aEventStatus);
1.58 + if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
1.59 + return NS_OK;
1.60 + }
1.61 +
1.62 + switch (aEvent->message) {
1.63 + case NS_KEY_DOWN: {
1.64 + WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
1.65 + if (!keyEvent) {
1.66 + break;
1.67 + }
1.68 + if (NS_VK_SPACE == keyEvent->keyCode) {
1.69 + EventStateManager* esm = aPresContext->EventStateManager();
1.70 + // :hover:active state
1.71 + esm->SetContentState(mContent, NS_EVENT_STATE_HOVER);
1.72 + esm->SetContentState(mContent, NS_EVENT_STATE_ACTIVE);
1.73 + }
1.74 + break;
1.75 + }
1.76 +
1.77 +// On mac, Return fires the default button, not the focused one.
1.78 +#ifndef XP_MACOSX
1.79 + case NS_KEY_PRESS: {
1.80 + WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
1.81 + if (!keyEvent) {
1.82 + break;
1.83 + }
1.84 + if (NS_VK_RETURN == keyEvent->keyCode) {
1.85 + nsCOMPtr<nsIDOMXULButtonElement> buttonEl(do_QueryInterface(mContent));
1.86 + if (buttonEl) {
1.87 + MouseClicked(aPresContext, aEvent);
1.88 + *aEventStatus = nsEventStatus_eConsumeNoDefault;
1.89 + }
1.90 + }
1.91 + break;
1.92 + }
1.93 +#endif
1.94 +
1.95 + case NS_KEY_UP: {
1.96 + WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent();
1.97 + if (!keyEvent) {
1.98 + break;
1.99 + }
1.100 + if (NS_VK_SPACE == keyEvent->keyCode) {
1.101 + // only activate on keyup if we're already in the :hover:active state
1.102 + NS_ASSERTION(mContent->IsElement(), "How do we have a non-element?");
1.103 + EventStates buttonState = mContent->AsElement()->State();
1.104 + if (buttonState.HasAllStates(NS_EVENT_STATE_ACTIVE |
1.105 + NS_EVENT_STATE_HOVER)) {
1.106 + // return to normal state
1.107 + EventStateManager* esm = aPresContext->EventStateManager();
1.108 + esm->SetContentState(nullptr, NS_EVENT_STATE_ACTIVE);
1.109 + esm->SetContentState(nullptr, NS_EVENT_STATE_HOVER);
1.110 + MouseClicked(aPresContext, aEvent);
1.111 + }
1.112 + }
1.113 + break;
1.114 + }
1.115 +
1.116 + case NS_MOUSE_CLICK: {
1.117 + WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent();
1.118 + if (mouseEvent->IsLeftClickEvent()) {
1.119 + MouseClicked(aPresContext, mouseEvent);
1.120 + }
1.121 + break;
1.122 + }
1.123 + }
1.124 +
1.125 + return nsBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
1.126 +}
1.127 +
1.128 +void
1.129 +nsButtonBoxFrame::DoMouseClick(WidgetGUIEvent* aEvent, bool aTrustEvent)
1.130 +{
1.131 + // Don't execute if we're disabled.
1.132 + if (mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::disabled,
1.133 + nsGkAtoms::_true, eCaseMatters))
1.134 + return;
1.135 +
1.136 + // Execute the oncommand event handler.
1.137 + bool isShift = false;
1.138 + bool isControl = false;
1.139 + bool isAlt = false;
1.140 + bool isMeta = false;
1.141 + if(aEvent) {
1.142 + WidgetInputEvent* inputEvent = aEvent->AsInputEvent();
1.143 + isShift = inputEvent->IsShift();
1.144 + isControl = inputEvent->IsControl();
1.145 + isAlt = inputEvent->IsAlt();
1.146 + isMeta = inputEvent->IsMeta();
1.147 + }
1.148 +
1.149 + // Have the content handle the event, propagating it according to normal DOM rules.
1.150 + nsCOMPtr<nsIPresShell> shell = PresContext()->GetPresShell();
1.151 + if (shell) {
1.152 + nsContentUtils::DispatchXULCommand(mContent,
1.153 + aEvent ?
1.154 + aEvent->mFlags.mIsTrusted : aTrustEvent,
1.155 + nullptr, shell,
1.156 + isControl, isAlt, isShift, isMeta);
1.157 + }
1.158 +}
