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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/dom/UserActivation.h"
#include "mozilla/TextEvents.h"
namespace mozilla::dom {
namespace {
// The current depth of user and keyboard inputs. sUserInputEventDepth
// is the number of any user input events, page load events and mouse over
// events. sUserKeyboardEventDepth is the number of keyboard input events.
// Incremented whenever we start handling a user input, decremented when we
// have finished handling a user input. This depth is *not* reset in case
// of nested event loops.
static int32_t sUserInputEventDepth = 0;
static int32_t sUserKeyboardEventDepth = 0;
// Time at which we began handling user input. Reset to the epoch
// once we have finished handling user input.
static TimeStamp sHandlingInputStart;
// Time at which we began handling the latest user input. Not reset
// at the end of the input.
static TimeStamp sLatestUserInputStart;
} // namespace
/* static */
bool UserActivation::IsHandlingUserInput() { return sUserInputEventDepth > 0; }
/* static */
bool UserActivation::IsHandlingKeyboardInput() {
return sUserKeyboardEventDepth > 0;
}
/* static */
bool UserActivation::IsUserInteractionEvent(const WidgetEvent* aEvent) {
if (!aEvent->IsTrusted()) {
return false;
}
switch (aEvent->mMessage) {
// eKeyboardEventClass
case eKeyPress:
case eKeyDown:
case eKeyUp:
// Not all keyboard events are treated as user input, so that popups
// can't be opened, fullscreen mode can't be started, etc at
// unexpected time.
return aEvent->AsKeyboardEvent()->CanTreatAsUserInput();
// eBasicEventClass
// eMouseEventClass
case eMouseClick:
case eMouseDown:
case eMouseUp:
// ePointerEventClass
case ePointerDown:
case ePointerUp:
// eTouchEventClass
case eTouchStart:
case eTouchEnd:
return true;
default:
return false;
}
}
/* static */
void UserActivation::StartHandlingUserInput(EventMessage aMessage) {
++sUserInputEventDepth;
if (sUserInputEventDepth == 1) {
sLatestUserInputStart = sHandlingInputStart = TimeStamp::Now();
}
if (WidgetEvent::IsKeyEventMessage(aMessage)) {
++sUserKeyboardEventDepth;
}
}
/* static */
void UserActivation::StopHandlingUserInput(EventMessage aMessage) {
--sUserInputEventDepth;
if (sUserInputEventDepth == 0) {
sHandlingInputStart = TimeStamp();
}
if (WidgetEvent::IsKeyEventMessage(aMessage)) {
--sUserKeyboardEventDepth;
}
}
/* static */
TimeStamp UserActivation::GetHandlingInputStart() {
return sHandlingInputStart;
}
/* static */
TimeStamp UserActivation::LatestUserInputStart() {
return sLatestUserInputStart;
}
//-----------------------------------------------------------------------------
// mozilla::dom::AutoHandlingUserInputStatePusher
//-----------------------------------------------------------------------------
AutoHandlingUserInputStatePusher::AutoHandlingUserInputStatePusher(
bool aIsHandlingUserInput, WidgetEvent* aEvent)
: mMessage(aEvent ? aEvent->mMessage : eVoidEvent),
mIsHandlingUserInput(aIsHandlingUserInput) {
if (!aIsHandlingUserInput) {
return;
}
UserActivation::StartHandlingUserInput(mMessage);
}
AutoHandlingUserInputStatePusher::~AutoHandlingUserInputStatePusher() {
if (!mIsHandlingUserInput) {
return;
}
UserActivation::StopHandlingUserInput(mMessage);
}
} // namespace mozilla::dom
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