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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef downloadproxy___h___
#define downloadproxy___h___
#include "nsIDownloadManager.h"
#include "nsIPrefBranch.h"
#include "nsIPrefService.h"
#include "nsIMIMEInfo.h"
#include "nsIFileURL.h"
#include "nsIDownloadManagerUI.h"
#define PREF_BDM_SHOWWHENSTARTING "browser.download.manager.showWhenStarting"
#define PREF_BDM_FOCUSWHENSTARTING "browser.download.manager.focusWhenStarting"
// This class only exists because nsDownload cannot inherit from nsITransfer
// directly. The reason for this is that nsDownloadManager (incorrectly) keeps
// an nsCOMArray of nsDownloads, and nsCOMArray is only intended for use with
// abstract classes. Using a concrete class that multiply inherits from classes
// deriving from nsISupports will throw ambiguous base class errors.
class nsDownloadProxy : public nsITransfer
{
protected:
virtual ~nsDownloadProxy() { }
public:
nsDownloadProxy() { }
NS_DECL_ISUPPORTS
NS_IMETHOD Init(nsIURI* aSource,
nsIURI* aTarget,
const nsAString& aDisplayName,
nsIMIMEInfo *aMIMEInfo,
PRTime aStartTime,
nsIFile* aTempFile,
nsICancelable* aCancelable,
bool aIsPrivate) override {
nsresult rv;
nsCOMPtr<nsIDownloadManager> dm = do_GetService("@mozilla.org/download-manager;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
rv = dm->AddDownload(nsIDownloadManager::DOWNLOAD_TYPE_DOWNLOAD, aSource,
aTarget, aDisplayName, aMIMEInfo, aStartTime,
aTempFile, aCancelable, aIsPrivate,
getter_AddRefs(mInner));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIPrefService> prefs = do_GetService("@mozilla.org/preferences-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIPrefBranch> branch = do_QueryInterface(prefs);
bool showDM = true;
if (branch)
branch->GetBoolPref(PREF_BDM_SHOWWHENSTARTING, &showDM);
if (showDM) {
nsCOMPtr<nsIDownloadManagerUI> dmui =
do_GetService("@mozilla.org/download-manager-ui;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
bool visible;
rv = dmui->GetVisible(&visible);
NS_ENSURE_SUCCESS(rv, rv);
bool focusWhenStarting = true;
if (branch)
(void)branch->GetBoolPref(PREF_BDM_FOCUSWHENSTARTING, &focusWhenStarting);
if (visible && !focusWhenStarting)
return NS_OK;
return dmui->Show(nullptr, mInner, nsIDownloadManagerUI::REASON_NEW_DOWNLOAD, aIsPrivate);
}
return rv;
}
NS_IMETHOD OnStateChange(nsIWebProgress* aWebProgress,
nsIRequest* aRequest, uint32_t aStateFlags,
nsresult aStatus) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnStateChange(aWebProgress, aRequest, aStateFlags, aStatus);
}
NS_IMETHOD OnStatusChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsresult aStatus,
const char16_t *aMessage) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnStatusChange(aWebProgress, aRequest, aStatus, aMessage);
}
NS_IMETHOD OnLocationChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, nsIURI *aLocation,
uint32_t aFlags) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnLocationChange(aWebProgress, aRequest, aLocation, aFlags);
}
NS_IMETHOD OnProgressChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
int32_t aCurSelfProgress,
int32_t aMaxSelfProgress,
int32_t aCurTotalProgress,
int32_t aMaxTotalProgress) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnProgressChange(aWebProgress, aRequest,
aCurSelfProgress,
aMaxSelfProgress,
aCurTotalProgress,
aMaxTotalProgress);
}
NS_IMETHOD OnProgressChange64(nsIWebProgress *aWebProgress,
nsIRequest *aRequest,
int64_t aCurSelfProgress,
int64_t aMaxSelfProgress,
int64_t aCurTotalProgress,
int64_t aMaxTotalProgress) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnProgressChange64(aWebProgress, aRequest,
aCurSelfProgress,
aMaxSelfProgress,
aCurTotalProgress,
aMaxTotalProgress);
}
NS_IMETHOD OnRefreshAttempted(nsIWebProgress *aWebProgress,
nsIURI *aUri,
int32_t aDelay,
bool aSameUri,
bool *allowRefresh) override
{
*allowRefresh = true;
return NS_OK;
}
NS_IMETHOD OnSecurityChange(nsIWebProgress *aWebProgress,
nsIRequest *aRequest, uint32_t aState) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->OnSecurityChange(aWebProgress, aRequest, aState);
}
NS_IMETHOD SetSha256Hash(const nsACString& aHash) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->SetSha256Hash(aHash);
}
NS_IMETHOD SetSignatureInfo(nsIArray* aSignatureInfo) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->SetSignatureInfo(aSignatureInfo);
}
NS_IMETHOD SetRedirects(nsIArray* aRedirects) override
{
NS_ENSURE_TRUE(mInner, NS_ERROR_NOT_INITIALIZED);
return mInner->SetRedirects(aRedirects);
}
private:
nsCOMPtr<nsIDownload> mInner;
};
NS_IMPL_ISUPPORTS(nsDownloadProxy, nsITransfer,
nsIWebProgressListener, nsIWebProgressListener2)
#endif
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