зеркало из https://github.com/mozilla/gecko-dev.git
159 строки
5.0 KiB
C++
159 строки
5.0 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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// Usage Notes:
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//
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// (1) Add this attachment as the first attachment to the application object.
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// (2) The EventRecord from ProcessNextEvent *must* persist across calls to
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// ProcessNextEvent in order to prevent dangling references to the event.
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#include "CApplicationEventAttachment.h"
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#include <LPeriodical.h>
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#include "nspr.h"
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#include "CMochaHacks.h"
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// ---------------------------------------------------------------------------------
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// <09> [Static data members]
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// ---------------------------------------------------------------------------------
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LApplication* CApplicationEventAttachment::sApplication = nil;
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EventRecord* CApplicationEventAttachment::sCurrentEvent = nil;
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EventRecord CApplicationEventAttachment::sFakeNullEvent;
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Boolean CApplicationEventAttachment::sFakeNullEventInitialized = false;
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// ---------------------------------------------------------------------------
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// <09> CApplicationEventAttachment
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// ---------------------------------------------------------------------------
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CApplicationEventAttachment::CApplicationEventAttachment()
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: LAttachment(msg_Event)
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{
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}
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// ---------------------------------------------------------------------------
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// <09> ~CApplicationEventAttachment
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// ---------------------------------------------------------------------------
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CApplicationEventAttachment::~CApplicationEventAttachment()
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{
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}
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// ---------------------------------------------------------------------------
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// <09> ExecuteSelf
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// ---------------------------------------------------------------------------
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// Remember the current event and the application object
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void
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CApplicationEventAttachment::ExecuteSelf(
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MessageT inMessage,
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void* ioParam)
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{
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#pragma unused(inMessage)
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sCurrentEvent = static_cast<EventRecord*>(ioParam);
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if (!sApplication)
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{
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sApplication = dynamic_cast<LApplication*>(mOwnerHost);
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}
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}
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// ---------------------------------------------------------------------------
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// <09> GetApplication
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// ---------------------------------------------------------------------------
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LApplication&
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CApplicationEventAttachment::GetApplication()
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{
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ThrowIfNil_(sApplication);
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return *sApplication;
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}
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// ---------------------------------------------------------------------------
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// <09> GetCurrentEvent
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// ---------------------------------------------------------------------------
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EventRecord&
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CApplicationEventAttachment::GetCurrentEvent()
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{
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if (!sCurrentEvent)
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{
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if (!sFakeNullEventInitialized)
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{
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sFakeNullEvent.what = nullEvent;
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sFakeNullEvent.message = 0;
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sFakeNullEvent.when = 0;
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sFakeNullEvent.where.h = sFakeNullEvent.where.v = 0;
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sFakeNullEvent.modifiers = 0;
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sFakeNullEventInitialized = true;
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}
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return sFakeNullEvent;
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}
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return *sCurrentEvent;
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}
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// ---------------------------------------------------------------------------
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// <09> CurrentEventHasModifiers
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// ---------------------------------------------------------------------------
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Boolean
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CApplicationEventAttachment::CurrentEventHasModifiers(
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EventModifiers inModifiers)
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{
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Boolean hasModifier = false;
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EventModifiers hackedModifiers = inModifiers;
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if (GetCurrentEvent().what == kPrivateNSPREventType)
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{
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// This is ridiculous. Sometimes when event.what is kPrivateNSPREventType
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// the modifiers are mapped to the mocha stuff and sometimes they're
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// native mac. So we have to first see if it seems to be mapped as mocha
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// before arbitrarily mapping inModifiers. And to make matters worse,
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// the darn mocha event mask stuff overlaps native mac modifiers for
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// the alt (option) modifier - so we're snookered in that case. TODO: is this
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// the best we can do short of fixing mocha event masks to match
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// the mac (at lease in the case of the Mac - we could #ifdef it).
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if ((GetCurrentEvent().modifiers & EVENT_ALT_MASK) ||
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(GetCurrentEvent().modifiers & EVENT_CONTROL_MASK) ||
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(GetCurrentEvent().modifiers & EVENT_SHIFT_MASK) ||
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(GetCurrentEvent().modifiers & EVENT_META_MASK))
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{
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hackedModifiers = CMochaHacks::MochaModifiers(inModifiers);
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}
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}
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return ((GetCurrentEvent().modifiers & hackedModifiers) ? true : false);
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}
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// ---------------------------------------------------------------------------
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// <09> ProcessNextEvent
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// ---------------------------------------------------------------------------
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void
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CApplicationEventAttachment::ProcessNextEvent()
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{
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GetApplication().ProcessNextEvent();
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}
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