зеркало из https://github.com/mozilla/gecko-dev.git
134 строки
2.9 KiB
C++
134 строки
2.9 KiB
C++
/* -*- 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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#include "msg.h"
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#include "msgbg.h"
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#include "msgpane.h"
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#include "msgurlq.h"
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extern "C" {
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extern int MK_OUT_OF_MEMORY;
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}
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msg_Background::msg_Background()
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{
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}
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msg_Background::~msg_Background()
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{
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if (m_pane) Interrupt();
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}
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int
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msg_Background::Begin(MSG_Pane* pane)
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{
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XP_ASSERT(!m_pane);
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if (m_pane) return -1;
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char* url = XP_STRDUP("mailbox:?background");
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if (!url) return MK_OUT_OF_MEMORY;
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m_urlstruct = NET_CreateURLStruct(url, NET_NORMAL_RELOAD);
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if (!m_urlstruct) {
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XP_FREE(url);
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return MK_OUT_OF_MEMORY;
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}
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XP_FREE(url);
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m_urlstruct->internal_url = TRUE;
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m_pane = pane;
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msg_InterruptContext(pane->GetContext(), TRUE);
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XP_ASSERT(pane->GetCurrentBackgroundJob() == NULL);
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pane->SetCurrentBackgroundJob(this);
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MSG_UrlQueue::AddUrlToPane(m_urlstruct, msg_Background::PreExit_s, pane);
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return 0;
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}
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void
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msg_Background::Interrupt()
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{
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XP_ASSERT(m_pane);
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if (m_pane) {
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msg_InterruptContext(m_pane->GetContext(), FALSE);
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XP_ASSERT(m_pane == NULL);
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}
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}
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msg_Background*
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msg_Background::FindBGObj(URL_Struct* urlstruct)
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{
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XP_ASSERT(urlstruct && urlstruct->msg_pane);
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if (!urlstruct || !urlstruct->msg_pane) return NULL;
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msg_Background* result = urlstruct->msg_pane->GetCurrentBackgroundJob();
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// OK, I'm truly evil, but I'm using this as an empty url that goes through
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// netlib once. so result will be null...
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XP_ASSERT(!result || result->m_pane == urlstruct->msg_pane);
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return result;
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}
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int
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msg_Background::ProcessBackground(URL_Struct* urlstruct)
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{
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msg_Background* obj = FindBGObj(urlstruct);
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if (obj) {
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return obj->DoSomeWork();
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}
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return MK_CONNECTED;
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}
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void
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msg_Background::PreExit_s(URL_Struct* urlstruct, int status,
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MWContext* context)
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{
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msg_Background* obj = FindBGObj(urlstruct);
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if (obj) {
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obj->PreExit(urlstruct, status, context);
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}
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}
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void
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msg_Background::PreExit(URL_Struct* /*urlstruct*/, int status,
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MWContext*)
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{
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XP_Bool deleteself = AllDone(status);
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XP_ASSERT(m_pane);
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if (m_pane) {
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m_pane->SetCurrentBackgroundJob(NULL);
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m_pane = NULL;
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}
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if (deleteself) delete this;
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}
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XP_Bool
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msg_Background::AllDone(int /*status*/)
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{
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return FALSE;
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}
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XP_Bool
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msg_Background::IsRunning()
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{
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return m_pane != NULL;
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}
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