forked from mirrors/gecko-dev
0e913c22c4
Differential Revision: https://phabricator.services.mozilla.com/D40677 --HG-- extra : moz-landing-system : lando
388 lines
11 KiB
C++
388 lines
11 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=4:tabstop=4:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <string.h>
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#include "nscore.h"
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#include "plstr.h"
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#include "prlink.h"
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#include "nsSound.h"
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#include "HeadlessSound.h"
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#include "nsIURL.h"
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#include "nsIFileURL.h"
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#include "nsNetUtil.h"
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#include "nsIChannel.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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#include "nsDirectoryService.h"
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#include "nsDirectoryServiceDefs.h"
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#include "mozilla/FileUtils.h"
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#include "mozilla/Unused.h"
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#include "mozilla/WidgetUtils.h"
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#include "nsIXULAppInfo.h"
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#include "nsContentUtils.h"
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#include "gfxPlatform.h"
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#include "mozilla/ClearOnShutdown.h"
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#include <stdio.h>
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#include <unistd.h>
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#include <gtk/gtk.h>
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static PRLibrary* libcanberra = nullptr;
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/* used to play sounds with libcanberra. */
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typedef struct _ca_context ca_context;
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typedef struct _ca_proplist ca_proplist;
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typedef void (*ca_finish_callback_t)(ca_context* c, uint32_t id, int error_code,
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void* userdata);
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typedef int (*ca_context_create_fn)(ca_context**);
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typedef int (*ca_context_destroy_fn)(ca_context*);
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typedef int (*ca_context_play_fn)(ca_context* c, uint32_t id, ...);
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typedef int (*ca_context_change_props_fn)(ca_context* c, ...);
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typedef int (*ca_proplist_create_fn)(ca_proplist**);
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typedef int (*ca_proplist_destroy_fn)(ca_proplist*);
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typedef int (*ca_proplist_sets_fn)(ca_proplist* c, const char* key,
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const char* value);
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typedef int (*ca_context_play_full_fn)(ca_context* c, uint32_t id,
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ca_proplist* p, ca_finish_callback_t cb,
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void* userdata);
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static ca_context_create_fn ca_context_create;
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static ca_context_destroy_fn ca_context_destroy;
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static ca_context_play_fn ca_context_play;
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static ca_context_change_props_fn ca_context_change_props;
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static ca_proplist_create_fn ca_proplist_create;
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static ca_proplist_destroy_fn ca_proplist_destroy;
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static ca_proplist_sets_fn ca_proplist_sets;
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static ca_context_play_full_fn ca_context_play_full;
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struct ScopedCanberraFile {
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explicit ScopedCanberraFile(nsIFile* file) : mFile(file){};
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~ScopedCanberraFile() {
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if (mFile) {
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mFile->Remove(false);
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}
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}
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void forget() { mozilla::Unused << mFile.forget(); }
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nsIFile* operator->() { return mFile; }
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operator nsIFile*() { return mFile; }
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nsCOMPtr<nsIFile> mFile;
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};
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static ca_context* ca_context_get_default() {
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// This allows us to avoid race conditions with freeing the context by handing
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// that responsibility to Glib, and still use one context at a time
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static GStaticPrivate ctx_static_private = G_STATIC_PRIVATE_INIT;
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ca_context* ctx = (ca_context*)g_static_private_get(&ctx_static_private);
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if (ctx) {
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return ctx;
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}
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ca_context_create(&ctx);
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if (!ctx) {
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return nullptr;
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}
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g_static_private_set(&ctx_static_private, ctx,
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(GDestroyNotify)ca_context_destroy);
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GtkSettings* settings = gtk_settings_get_default();
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if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
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"gtk-sound-theme-name")) {
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gchar* sound_theme_name = nullptr;
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g_object_get(settings, "gtk-sound-theme-name", &sound_theme_name, nullptr);
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if (sound_theme_name) {
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ca_context_change_props(ctx, "canberra.xdg-theme.name", sound_theme_name,
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nullptr);
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g_free(sound_theme_name);
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}
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}
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nsAutoString wbrand;
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mozilla::widget::WidgetUtils::GetBrandShortName(wbrand);
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ca_context_change_props(ctx, "application.name",
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NS_ConvertUTF16toUTF8(wbrand).get(), nullptr);
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nsCOMPtr<nsIXULAppInfo> appInfo =
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do_GetService("@mozilla.org/xre/app-info;1");
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if (appInfo) {
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nsAutoCString version;
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appInfo->GetVersion(version);
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ca_context_change_props(ctx, "application.version", version.get(), nullptr);
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}
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ca_context_change_props(ctx, "application.icon_name", MOZ_APP_NAME, nullptr);
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return ctx;
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}
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static void ca_finish_cb(ca_context* c, uint32_t id, int error_code,
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void* userdata) {
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nsIFile* file = reinterpret_cast<nsIFile*>(userdata);
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if (file) {
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file->Remove(false);
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NS_RELEASE(file);
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}
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}
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NS_IMPL_ISUPPORTS(nsSound, nsISound, nsIStreamLoaderObserver)
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////////////////////////////////////////////////////////////////////////
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nsSound::nsSound() { mInited = false; }
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nsSound::~nsSound() {}
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NS_IMETHODIMP
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nsSound::Init() {
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// This function is designed so that no library is compulsory, and
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// one library missing doesn't cause the other(s) to not be used.
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if (mInited) return NS_OK;
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mInited = true;
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if (!libcanberra) {
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libcanberra = PR_LoadLibrary("libcanberra.so.0");
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if (libcanberra) {
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ca_context_create = (ca_context_create_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_context_create");
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if (!ca_context_create) {
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PR_UnloadLibrary(libcanberra);
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libcanberra = nullptr;
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} else {
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// at this point we know we have a good libcanberra library
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ca_context_destroy = (ca_context_destroy_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_context_destroy");
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ca_context_play = (ca_context_play_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_context_play");
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ca_context_change_props =
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(ca_context_change_props_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_context_change_props");
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ca_proplist_create = (ca_proplist_create_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_proplist_create");
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ca_proplist_destroy = (ca_proplist_destroy_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_proplist_destroy");
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ca_proplist_sets = (ca_proplist_sets_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_proplist_sets");
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ca_context_play_full = (ca_context_play_full_fn)PR_FindFunctionSymbol(
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libcanberra, "ca_context_play_full");
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}
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}
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}
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return NS_OK;
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}
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/* static */
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void nsSound::Shutdown() {
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if (libcanberra) {
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PR_UnloadLibrary(libcanberra);
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libcanberra = nullptr;
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}
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}
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namespace mozilla {
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namespace sound {
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StaticRefPtr<nsISound> sInstance;
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}
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} // namespace mozilla
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/* static */
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already_AddRefed<nsISound> nsSound::GetInstance() {
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using namespace mozilla::sound;
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if (!sInstance) {
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if (gfxPlatform::IsHeadless()) {
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sInstance = new mozilla::widget::HeadlessSound();
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} else {
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sInstance = new nsSound();
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}
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ClearOnShutdown(&sInstance);
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}
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RefPtr<nsISound> service = sInstance.get();
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return service.forget();
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}
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NS_IMETHODIMP nsSound::OnStreamComplete(nsIStreamLoader* aLoader,
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nsISupports* context, nsresult aStatus,
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uint32_t dataLen, const uint8_t* data) {
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// print a load error on bad status, and return
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if (NS_FAILED(aStatus)) {
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#ifdef DEBUG
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if (aLoader) {
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nsCOMPtr<nsIRequest> request;
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aLoader->GetRequest(getter_AddRefs(request));
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if (request) {
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nsCOMPtr<nsIURI> uri;
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nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
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if (channel) {
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channel->GetURI(getter_AddRefs(uri));
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if (uri) {
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printf("Failed to load %s\n", uri->GetSpecOrDefault().get());
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}
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}
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}
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}
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#endif
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return aStatus;
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}
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nsCOMPtr<nsIFile> tmpFile;
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nsDirectoryService::gService->Get(NS_OS_TEMP_DIR, NS_GET_IID(nsIFile),
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getter_AddRefs(tmpFile));
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nsresult rv =
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tmpFile->AppendNative(nsDependentCString("mozilla_audio_sample"));
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = tmpFile->CreateUnique(nsIFile::NORMAL_FILE_TYPE, PR_IRUSR | PR_IWUSR);
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if (NS_FAILED(rv)) {
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return rv;
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}
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ScopedCanberraFile canberraFile(tmpFile);
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mozilla::AutoFDClose fd;
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rv = canberraFile->OpenNSPRFileDesc(PR_WRONLY, PR_IRUSR | PR_IWUSR,
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&fd.rwget());
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if (NS_FAILED(rv)) {
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return rv;
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}
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// XXX: Should we do this on another thread?
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uint32_t length = dataLen;
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while (length > 0) {
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int32_t amount = PR_Write(fd, data, length);
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if (amount < 0) {
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return NS_ERROR_FAILURE;
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}
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length -= amount;
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data += amount;
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}
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ca_context* ctx = ca_context_get_default();
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if (!ctx) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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ca_proplist* p;
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ca_proplist_create(&p);
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if (!p) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsAutoCString path;
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rv = canberraFile->GetNativePath(path);
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if (NS_FAILED(rv)) {
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return rv;
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}
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ca_proplist_sets(p, "media.filename", path.get());
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if (ca_context_play_full(ctx, 0, p, ca_finish_cb, canberraFile) >= 0) {
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// Don't delete the temporary file here if ca_context_play_full succeeds
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canberraFile.forget();
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}
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ca_proplist_destroy(p);
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return NS_OK;
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}
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NS_IMETHODIMP nsSound::Beep() {
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::gdk_beep();
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return NS_OK;
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}
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NS_IMETHODIMP nsSound::Play(nsIURL* aURL) {
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if (!mInited) Init();
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if (!libcanberra) return NS_ERROR_NOT_AVAILABLE;
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nsresult rv;
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if (aURL->SchemeIs("file")) {
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ca_context* ctx = ca_context_get_default();
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if (!ctx) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsAutoCString spec;
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rv = aURL->GetSpec(spec);
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if (NS_FAILED(rv)) {
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return rv;
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}
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gchar* path = g_filename_from_uri(spec.get(), nullptr, nullptr);
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if (!path) {
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return NS_ERROR_FILE_UNRECOGNIZED_PATH;
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}
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ca_context_play(ctx, 0, "media.filename", path, nullptr);
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g_free(path);
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} else {
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nsCOMPtr<nsIStreamLoader> loader;
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rv = NS_NewStreamLoader(getter_AddRefs(loader), aURL,
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this, // aObserver
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nsContentUtils::GetSystemPrincipal(),
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nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
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nsIContentPolicy::TYPE_OTHER);
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}
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return rv;
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}
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NS_IMETHODIMP nsSound::PlayEventSound(uint32_t aEventId) {
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if (!mInited) Init();
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if (!libcanberra) return NS_OK;
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// Do we even want alert sounds?
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GtkSettings* settings = gtk_settings_get_default();
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if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
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"gtk-enable-event-sounds")) {
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gboolean enable_sounds = TRUE;
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g_object_get(settings, "gtk-enable-event-sounds", &enable_sounds, nullptr);
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if (!enable_sounds) {
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return NS_OK;
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}
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}
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ca_context* ctx = ca_context_get_default();
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if (!ctx) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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switch (aEventId) {
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case EVENT_ALERT_DIALOG_OPEN:
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ca_context_play(ctx, 0, "event.id", "dialog-warning", nullptr);
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break;
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case EVENT_CONFIRM_DIALOG_OPEN:
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ca_context_play(ctx, 0, "event.id", "dialog-question", nullptr);
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break;
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case EVENT_NEW_MAIL_RECEIVED:
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ca_context_play(ctx, 0, "event.id", "message-new-email", nullptr);
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break;
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case EVENT_MENU_EXECUTE:
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ca_context_play(ctx, 0, "event.id", "menu-click", nullptr);
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break;
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case EVENT_MENU_POPUP:
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ca_context_play(ctx, 0, "event.id", "menu-popup", nullptr);
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break;
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}
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return NS_OK;
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}
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