Magic-Mirror/gecko-dev
1
0
Fork 0
mirror of https://github.com/mozilla/gecko-dev.git synced 2024-10-31 22:25:30 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
95370d69a3
gecko-dev/widget/gtk/nsSound.cpp
Nicholas Nethercote 742fc7eb48 Bug 1297961 (part 1) - Introduce nsURI::GetSpecOrDefault(). r=hurley. 
This function is an infallible alternative to nsIURI::GetSpec(). It's useful
when it's appropriate to handle a GetSpec() failure with a failure string, e.g.
for log/warning/error messages. It allows code like this:

  nsAutoCString spec;
  uri->GetSpec(spec);
  printf("uri: %s", spec.get());

to be changed to this:

  printf("uri: %s", uri->GetSpecOrDefault().get());

This introduces a slight behavioural change. Previously, if GetSpec() failed,
an empty string would be used here. Now, "[nsIURI::GetSpec failed]" will be
produced instead. In most cases this failure string will make for a clearer
log/warning/error message than the empty string.
* * *
Bug 1297961 (part 1b) - More GetSpecOrDefault() additions. r=hurley.

I will fold this into part 1 before landing.

--HG--
extra : rebase_source : ddc19a5624354ac098be019ca13cc24b99b80ddc
2016-08-26 16:02:31 +10:00

445 lines
14 KiB
C++
Raw Blame History

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* 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/. */
#include <string.h>
#include "nscore.h"
#include "plstr.h"
#include "prlink.h"
#include "nsSound.h"
#include "nsIURL.h"
#include "nsIFileURL.h"
#include "nsNetUtil.h"
#include "nsIChannel.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsDirectoryService.h"
#include "nsDirectoryServiceDefs.h"
#include "mozilla/FileUtils.h"
#include "mozilla/Services.h"
#include "mozilla/Unused.h"
#include "nsIStringBundle.h"
#include "nsIXULAppInfo.h"
#include "nsContentUtils.h"
#include <stdio.h>
#include <unistd.h>
#include <gtk/gtk.h>
static PRLibrary *libcanberra = nullptr;
/* used to play sounds with libcanberra. */
typedef struct _ca_context ca_context;
typedef struct _ca_proplist ca_proplist;
typedef void (*ca_finish_callback_t) (ca_context *c,
uint32_t id,
int error_code,
void *userdata);
typedef int (*ca_context_create_fn) (ca_context **);
typedef int (*ca_context_destroy_fn) (ca_context *);
typedef int (*ca_context_play_fn) (ca_context *c,
uint32_t id,
...);
typedef int (*ca_context_change_props_fn) (ca_context *c,
...);
typedef int (*ca_proplist_create_fn) (ca_proplist **);
typedef int (*ca_proplist_destroy_fn) (ca_proplist *);
typedef int (*ca_proplist_sets_fn) (ca_proplist *c,
const char *key,
const char *value);
typedef int (*ca_context_play_full_fn) (ca_context *c,
uint32_t id,
ca_proplist *p,
ca_finish_callback_t cb,
void *userdata);
static ca_context_create_fn ca_context_create;
static ca_context_destroy_fn ca_context_destroy;
static ca_context_play_fn ca_context_play;
static ca_context_change_props_fn ca_context_change_props;
static ca_proplist_create_fn ca_proplist_create;
static ca_proplist_destroy_fn ca_proplist_destroy;
static ca_proplist_sets_fn ca_proplist_sets;
static ca_context_play_full_fn ca_context_play_full;
struct ScopedCanberraFile {
explicit ScopedCanberraFile(nsIFile *file): mFile(file) {};
~ScopedCanberraFile() {
if (mFile) {
mFile->Remove(false);
}
}
void forget() {
mozilla::Unused << mFile.forget();
}
nsIFile* operator->() { return mFile; }
operator nsIFile*() { return mFile; }
nsCOMPtr<nsIFile> mFile;
};
static ca_context*
ca_context_get_default()
{
// This allows us to avoid race conditions with freeing the context by handing that
// responsibility to Glib, and still use one context at a time
static GStaticPrivate ctx_static_private = G_STATIC_PRIVATE_INIT;
ca_context* ctx = (ca_context*) g_static_private_get(&ctx_static_private);
if (ctx) {
return ctx;
}
ca_context_create(&ctx);
if (!ctx) {
return nullptr;
}
g_static_private_set(&ctx_static_private, ctx, (GDestroyNotify) ca_context_destroy);
GtkSettings* settings = gtk_settings_get_default();
if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
"gtk-sound-theme-name")) {
gchar* sound_theme_name = nullptr;
g_object_get(settings, "gtk-sound-theme-name", &sound_theme_name,
nullptr);
if (sound_theme_name) {
ca_context_change_props(ctx, "canberra.xdg-theme.name",
sound_theme_name, nullptr);
g_free(sound_theme_name);
}
}
nsCOMPtr<nsIStringBundleService> bundleService =
mozilla::services::GetStringBundleService();
if (bundleService) {
nsCOMPtr<nsIStringBundle> brandingBundle;
bundleService->CreateBundle("chrome://branding/locale/brand.properties",
getter_AddRefs(brandingBundle));
if (brandingBundle) {
nsAutoString wbrand;
brandingBundle->GetStringFromName(u"brandShortName",
getter_Copies(wbrand));
NS_ConvertUTF16toUTF8 brand(wbrand);
ca_context_change_props(ctx, "application.name", brand.get(),
nullptr);
}
}
nsCOMPtr<nsIXULAppInfo> appInfo = do_GetService("@mozilla.org/xre/app-info;1");
if (appInfo) {
nsAutoCString version;
appInfo->GetVersion(version);
ca_context_change_props(ctx, "application.version", version.get(),
nullptr);
}
ca_context_change_props(ctx, "application.icon_name", MOZ_APP_NAME,
nullptr);
return ctx;
}
static void
ca_finish_cb(ca_context *c,
uint32_t id,
int error_code,
void *userdata)
{
nsIFile *file = reinterpret_cast<nsIFile *>(userdata);
if (file) {
file->Remove(false);
NS_RELEASE(file);
}
}
NS_IMPL_ISUPPORTS(nsSound, nsISound, nsIStreamLoaderObserver)
////////////////////////////////////////////////////////////////////////
nsSound::nsSound()
{
mInited = false;
}
nsSound::~nsSound()
{
}
NS_IMETHODIMP
nsSound::Init()
{
// This function is designed so that no library is compulsory, and
// one library missing doesn't cause the other(s) to not be used.
if (mInited)
return NS_OK;
mInited = true;
if (!libcanberra) {
libcanberra = PR_LoadLibrary("libcanberra.so.0");
if (libcanberra) {
ca_context_create = (ca_context_create_fn) PR_FindFunctionSymbol(libcanberra, "ca_context_create");
if (!ca_context_create) {
PR_UnloadLibrary(libcanberra);
libcanberra = nullptr;
} else {
// at this point we know we have a good libcanberra library
ca_context_destroy = (ca_context_destroy_fn) PR_FindFunctionSymbol(libcanberra, "ca_context_destroy");
ca_context_play = (ca_context_play_fn) PR_FindFunctionSymbol(libcanberra, "ca_context_play");
ca_context_change_props = (ca_context_change_props_fn) PR_FindFunctionSymbol(libcanberra, "ca_context_change_props");
ca_proplist_create = (ca_proplist_create_fn) PR_FindFunctionSymbol(libcanberra, "ca_proplist_create");
ca_proplist_destroy = (ca_proplist_destroy_fn) PR_FindFunctionSymbol(libcanberra, "ca_proplist_destroy");
ca_proplist_sets = (ca_proplist_sets_fn) PR_FindFunctionSymbol(libcanberra, "ca_proplist_sets");
ca_context_play_full = (ca_context_play_full_fn) PR_FindFunctionSymbol(libcanberra, "ca_context_play_full");
}
}
}
return NS_OK;
}
/* static */ void
nsSound::Shutdown()
{
if (libcanberra) {
PR_UnloadLibrary(libcanberra);
libcanberra = nullptr;
}
}
NS_IMETHODIMP nsSound::OnStreamComplete(nsIStreamLoader *aLoader,
nsISupports *context,
nsresult aStatus,
uint32_t dataLen,
const uint8_t *data)
{
// print a load error on bad status, and return
if (NS_FAILED(aStatus)) {
#ifdef DEBUG
if (aLoader) {
nsCOMPtr<nsIRequest> request;
aLoader->GetRequest(getter_AddRefs(request));
if (request) {
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
if (channel) {
channel->GetURI(getter_AddRefs(uri));
if (uri) {
printf("Failed to load %s\n",
uri->GetSpecOrDefault().get());
}
}
}
}
#endif
return aStatus;
}
nsCOMPtr<nsIFile> tmpFile;
nsDirectoryService::gService->Get(NS_OS_TEMP_DIR, NS_GET_IID(nsIFile),
getter_AddRefs(tmpFile));
nsresult rv = tmpFile->AppendNative(nsDependentCString("mozilla_audio_sample"));
if (NS_FAILED(rv)) {
return rv;
}
rv = tmpFile->CreateUnique(nsIFile::NORMAL_FILE_TYPE, PR_IRUSR | PR_IWUSR);
if (NS_FAILED(rv)) {
return rv;
}
ScopedCanberraFile canberraFile(tmpFile);
mozilla::AutoFDClose fd;
rv = canberraFile->OpenNSPRFileDesc(PR_WRONLY, PR_IRUSR | PR_IWUSR,
&fd.rwget());
if (NS_FAILED(rv)) {
return rv;
}
// XXX: Should we do this on another thread?
uint32_t length = dataLen;
while (length > 0) {
int32_t amount = PR_Write(fd, data, length);
if (amount < 0) {
return NS_ERROR_FAILURE;
}
length -= amount;
data += amount;
}
ca_context* ctx = ca_context_get_default();
if (!ctx) {
return NS_ERROR_OUT_OF_MEMORY;
}
ca_proplist *p;
ca_proplist_create(&p);
if (!p) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsAutoCString path;
rv = canberraFile->GetNativePath(path);
if (NS_FAILED(rv)) {
return rv;
}
ca_proplist_sets(p, "media.filename", path.get());
if (ca_context_play_full(ctx, 0, p, ca_finish_cb, canberraFile) >= 0) {
// Don't delete the temporary file here if ca_context_play_full succeeds
canberraFile.forget();
}
ca_proplist_destroy(p);
return NS_OK;
}
NS_IMETHODIMP nsSound::Beep()
{
::gdk_beep();
return NS_OK;
}
NS_IMETHODIMP nsSound::Play(nsIURL *aURL)
{
if (!mInited)
Init();
if (!libcanberra)
return NS_ERROR_NOT_AVAILABLE;
bool isFile;
nsresult rv = aURL->SchemeIs("file", &isFile);
if (NS_SUCCEEDED(rv) && isFile) {
ca_context* ctx = ca_context_get_default();
if (!ctx) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsAutoCString spec;
rv = aURL->GetSpec(spec);
if (NS_FAILED(rv)) {
return rv;
}
gchar *path = g_filename_from_uri(spec.get(), nullptr, nullptr);
if (!path) {
return NS_ERROR_FILE_UNRECOGNIZED_PATH;
}
ca_context_play(ctx, 0, "media.filename", path, nullptr);
g_free(path);
} else {
nsCOMPtr<nsIStreamLoader> loader;
rv = NS_NewStreamLoader(getter_AddRefs(loader),
aURL,
this, // aObserver
nsContentUtils::GetSystemPrincipal(),
nsILoadInfo::SEC_ALLOW_CROSS_ORIGIN_DATA_IS_NULL,
nsIContentPolicy::TYPE_OTHER);
}
return rv;
}
NS_IMETHODIMP nsSound::PlayEventSound(uint32_t aEventId)
{
if (!mInited)
Init();
if (!libcanberra)
return NS_OK;
// Do we even want alert sounds?
GtkSettings* settings = gtk_settings_get_default();
if (g_object_class_find_property(G_OBJECT_GET_CLASS(settings),
"gtk-enable-event-sounds")) {
gboolean enable_sounds = TRUE;
g_object_get(settings, "gtk-enable-event-sounds", &enable_sounds, nullptr);
if (!enable_sounds) {
return NS_OK;
}
}
ca_context* ctx = ca_context_get_default();
if (!ctx) {
return NS_ERROR_OUT_OF_MEMORY;
}
switch (aEventId) {
case EVENT_ALERT_DIALOG_OPEN:
ca_context_play(ctx, 0, "event.id", "dialog-warning", nullptr);
break;
case EVENT_CONFIRM_DIALOG_OPEN:
ca_context_play(ctx, 0, "event.id", "dialog-question", nullptr);
break;
case EVENT_NEW_MAIL_RECEIVED:
ca_context_play(ctx, 0, "event.id", "message-new-email", nullptr);
break;
case EVENT_MENU_EXECUTE:
ca_context_play(ctx, 0, "event.id", "menu-click", nullptr);
break;
case EVENT_MENU_POPUP:
ca_context_play(ctx, 0, "event.id", "menu-popup", nullptr);
break;
}
return NS_OK;
}
NS_IMETHODIMP nsSound::PlaySystemSound(const nsAString &aSoundAlias)
{
if (NS_IsMozAliasSound(aSoundAlias)) {
NS_WARNING("nsISound::playSystemSound is called with \"_moz_\" events, they are obsolete, use nsISound::playEventSound instead");
uint32_t eventId;
if (aSoundAlias.Equals(NS_SYSSOUND_ALERT_DIALOG))
eventId = EVENT_ALERT_DIALOG_OPEN;
else if (aSoundAlias.Equals(NS_SYSSOUND_CONFIRM_DIALOG))
eventId = EVENT_CONFIRM_DIALOG_OPEN;
else if (aSoundAlias.Equals(NS_SYSSOUND_MAIL_BEEP))
eventId = EVENT_NEW_MAIL_RECEIVED;
else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_EXECUTE))
eventId = EVENT_MENU_EXECUTE;
else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_POPUP))
eventId = EVENT_MENU_POPUP;
else
return NS_OK;
return PlayEventSound(eventId);
}
nsresult rv;
nsCOMPtr <nsIURI> fileURI;
// create a nsIFile and then a nsIFileURL from that
nsCOMPtr <nsIFile> soundFile;
rv = NS_NewLocalFile(aSoundAlias, true,
getter_AddRefs(soundFile));
NS_ENSURE_SUCCESS(rv,rv);
rv = NS_NewFileURI(getter_AddRefs(fileURI), soundFile);
NS_ENSURE_SUCCESS(rv,rv);
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(fileURI,&rv);
NS_ENSURE_SUCCESS(rv,rv);
rv = Play(fileURL);
return rv;
}
Reference in New Issue View Git Blame Copy Permalink