widget/qt/nsAppShell.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* vim:expandtab:shiftwidth=4:tabstop=4:
   3  */
   4 /* This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   7
   8 #include "nsAppShell.h"
   9 #include <QGuiApplication>
  10 #include <unistd.h>
  11 #include <fcntl.h>
  12 #include <errno.h>
  13
  14 #include <qabstracteventdispatcher.h>
  15 #include <qthread.h>
  16
  17 #include "prenv.h"
  18 #include "nsQAppInstance.h"
  19
  20 #ifdef MOZ_LOGGING
  21 #include "prlog.h"
  22 #endif
  23
  24 #ifdef PR_LOGGING
  25 PRLogModuleInfo *gWidgetLog = nullptr;
  26 PRLogModuleInfo *gWidgetFocusLog = nullptr;
  27 PRLogModuleInfo *gWidgetIMLog = nullptr;
  28 PRLogModuleInfo *gWidgetDrawLog = nullptr;
  29 #endif
  30
  31 static int sPokeEvent;
  32
  33 nsAppShell::~nsAppShell()
  34 {
  35     nsQAppInstance::Release();
  36 }
  37
  38 nsresult
  39 nsAppShell::Init()
  40 {
  41 #ifdef PR_LOGGING
  42     if (!gWidgetLog)
  43         gWidgetLog = PR_NewLogModule("Widget");
  44     if (!gWidgetFocusLog)
  45         gWidgetFocusLog = PR_NewLogModule("WidgetFocus");
  46     if (!gWidgetIMLog)
  47         gWidgetIMLog = PR_NewLogModule("WidgetIM");
  48     if (!gWidgetDrawLog)
  49         gWidgetDrawLog = PR_NewLogModule("WidgetDraw");
  50 #endif
  51     sPokeEvent = QEvent::registerEventType();
  52
  53     nsQAppInstance::AddRef();
  54
  55     return nsBaseAppShell::Init();
  56 }
  57
  58 void
  59 nsAppShell::ScheduleNativeEventCallback()
  60 {
  61     QCoreApplication::postEvent(this,
  62                                 new QEvent((QEvent::Type) sPokeEvent));
  63 }
  64
  65
  66 bool
  67 nsAppShell::ProcessNextNativeEvent(bool mayWait)
  68 {
  69     QEventLoop::ProcessEventsFlags flags = QEventLoop::AllEvents;
  70
  71     if (mayWait)
  72         flags |= QEventLoop::WaitForMoreEvents;
  73
  74     QAbstractEventDispatcher *dispatcher =  QAbstractEventDispatcher::instance(QThread::currentThread());
  75     if (!dispatcher)
  76         return false;
  77
  78     return dispatcher->processEvents(flags) ? true : false;
  79 }
  80
  81 bool
  82 nsAppShell::event (QEvent *e)
  83 {
  84     if (e->type() == sPokeEvent) {
  85         NativeEventCallback();
  86         return true;
  87     }
  88
  89     return false;
  90 }