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transmission/beos/TRWindow.cpp

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#include "TRWindow.h"
#include <stdio.h>
#include <Alert.h>
#include <Application.h>
#include <File.h>
#include <MenuBar.h>
#include <MenuItem.h>
#include <NodeMonitor.h>
#include <ScrollView.h>
#include <String.h>
#include <malloc.h>
#include "Prefs.h"
#include "TRApplication.h"
#include "TRTransfer.h"
#include "TRInfoWindow.h"
/**
* The Transmission Window! Yay!
*/
TRWindow::TRWindow() : BWindow(BRect(10, 40, 350, 110), "Transmission", B_TITLED_WINDOW,
B_ASYNCHRONOUS_CONTROLS , B_CURRENT_WORKSPACE)
{
engine = NULL;
Prefs prefs(TRANSMISSION_SETTINGS);
BRect *rectFrame = new BRect();
if (prefs.FindRect("window.frame", rectFrame) == B_OK) {
MoveTo(rectFrame->LeftTop());
ResizeTo(rectFrame->Width(), rectFrame->Height());
} else {
rectFrame->Set(10, 40, 350, 110);
}
Lock();
BRect viewRect(0, 0, rectFrame->Width(), rectFrame->Height());
BMenuBar *menubar = new BMenuBar(viewRect, "MenuBar");
BMenu *menu = new BMenu("File");
menu->AddItem(new BMenuItem("Open", new BMessage(TR_OPEN), 'O', B_COMMAND_KEY));
menu->FindItem(TR_OPEN)->SetTarget(be_app_messenger); // send OPEN to the be_app.
menu->AddSeparatorItem();
menu->AddItem(new BMenuItem("Quit", new BMessage(B_QUIT_REQUESTED), 'Q', B_COMMAND_KEY));
menubar->AddItem(menu);
menu = new BMenu("Torrent");
menu->AddItem(new BMenuItem("Get Info", new BMessage(TR_INFO), 'I', B_COMMAND_KEY));
menu->FindItem(TR_INFO)->SetEnabled(false);
menu->AddSeparatorItem();
menu->AddItem(new BMenuItem("Resume", new BMessage(TR_RESUME)));
menu->AddItem(new BMenuItem("Pause", new BMessage(TR_PAUSE)));
menu->AddItem(new BMenuItem("Remove", new BMessage(TR_REMOVE)));
menubar->AddItem(menu);
menu = new BMenu("Tools");
menu->AddItem(new BMenuItem("Settings", new BMessage(TR_SETTINGS)));
menu->FindItem(TR_SETTINGS)->SetTarget(be_app_messenger);
menu->AddSeparatorItem();
menu->AddItem(new BMenuItem("About Transmission", new BMessage(B_ABOUT_REQUESTED)));
menu->FindItem(B_ABOUT_REQUESTED)->SetTarget(be_app_messenger);
menubar->AddItem(menu);
AddChild(menubar);
SetKeyMenuBar(menubar);
// TODO: Tool Bar? (Well after everything is working based on Menus)
// Setup the transfers ListView
viewRect.Set(2, menubar->Frame().bottom + 3, rectFrame->Width() - 2 - B_V_SCROLL_BAR_WIDTH, rectFrame->Height() - 2);
transfers = new BListView(viewRect, "TorrentList", B_SINGLE_SELECTION_LIST, B_FOLLOW_ALL);
transfers->SetSelectionMessage(new BMessage(TR_SELECT));
AddChild(new BScrollView("TransferScroller", transfers, B_FOLLOW_ALL, 0, false, true));
Unlock();
delete rectFrame;
// Bring up the Transmission Engine
engine = tr_init();
LoadSettings();
UpdateList(-1, true);
// Start the message loop without showing the window.
Hide();
Show();
}
TRWindow::~TRWindow() {
tr_close(engine);
stop_watching(this);
}
void TRWindow::LoadSettings() {
if (engine != NULL) {
Prefs prefs(TRANSMISSION_SETTINGS);
int32 bindPort;
if (prefs.FindInt32("transmission.bindPort", &bindPort) != B_OK) {
bindPort = 9000;
prefs.SetInt32("transmission.bindPort", bindPort);
}
tr_setBindPort(engine, (int)bindPort);
int32 uploadLimit;
if (prefs.FindInt32("transmission.uploadLimit", &uploadLimit) != B_OK) {
uploadLimit = 20;
prefs.SetInt32("transmission.uploadLimit", uploadLimit);
}
tr_setUploadLimit(engine, (int)uploadLimit);
}
}
/**
* Rescans the active Torrents folder, and will add all the torrents there to the
* engine. Called during initial Application Start & Stop.
*/
void TRWindow::RescanTorrents() {
if (Lock()) {
TRApplication *app = dynamic_cast<TRApplication*>(be_app);
BEntry *torrentEntry = new BEntry();
status_t err;
if (app->TorrentDir()->InitCheck() == B_OK) {
err = app->TorrentDir()->Rewind();
while (err == B_OK) {
err = app->TorrentDir()->GetNextEntry(torrentEntry, true);
if (err != B_ENTRY_NOT_FOUND) {
AddEntry(torrentEntry);
}
}
}
delete torrentEntry;
Unlock();
}
}
/**
* Adds the file specified by *torrent to the Transmission engine.
* Then adds a new TRTransfer item in the transfers list.
* This item holds cached information about the torrent entry and node.
* These TRTransmission items are _NOT_ guaranteed to render the entry
* they were created from.
*/
void TRWindow::AddEntry(BEntry *torrent) {
node_ref node;
if (torrent->GetNodeRef(&node) == B_OK) {
if (watch_node(&node, B_WATCH_NAME, this) == B_OK) {
BPath path;
torrent->GetPath(&path);
// Try adding the torrent to the engine.
int addStatus = tr_torrentInit(engine, path.Path());
if (addStatus == 0 && Lock()) { // Success. Add the TRTorrent item.
transfers->AddItem(new TRTransfer(path.Path(), node));
bool autoStart = true;
// Decide if we should auto-start this torrent or not.
BString prefName("download.");
prefName << path.Path() << ".running";
Prefs *prefs = new Prefs(TRANSMISSION_SETTINGS);
if (prefs->FindBool(prefName.String(), &autoStart) != B_OK) {
autoStart = true;
}
delete prefs;
if (autoStart) {
// Start the newly added torrent.
worker_info *startData = (worker_info*)calloc(1, sizeof(worker_info));
startData->window = this;
startData->index = tr_torrentCount(engine) - 1;
thread_id start_thread = spawn_thread(TRWindow::AsynchStartTorrent, "BirthCanal",
B_NORMAL_PRIORITY, (void *)startData);
if (!((start_thread) < B_OK)) {
resume_thread(start_thread);
} else { // Fallback and start the old way.
StartTorrent(startData->index);
free(startData);
}
}
Unlock();
} else {
bool duplicate = false;
TRTransfer* tr;
for (int32 i = 0; i < transfers->CountItems(); i++) {
tr = (TRTransfer*)transfers->ItemAt(i);
if (tr->GetCachedNodeRef() == node) {
duplicate = true;
}
}
if (!duplicate) {
BString errmsg("An error occurred trying to read ");
char namebuf[B_FILE_NAME_LENGTH];
torrent->GetName(namebuf);
errmsg << namebuf;
errmsg << ".";
BAlert *error = new BAlert("Error Opening Torrent",
errmsg.String(),
"Ok", NULL, NULL,
B_WIDTH_AS_USUAL, B_WARNING_ALERT);
error->Go();
torrent->Remove();
}
}
}
}
}
void TRWindow::MessageReceived(BMessage *msg) {
/*
* The only messages we receive from the node_monitor are if we need to
* stop watching the node. Basically, if it's been moved or removed we stop.
*/
if (msg->what == B_NODE_MONITOR) {
node_ref node;
ino_t fromDir;
ino_t toDir;
int32 opcode;
if ((msg->FindInt32("opcode", &opcode) == B_OK) &&
(msg->FindInt64("node", &node.node) == B_OK) &&
(msg->FindInt32("device", &node.device) == B_OK))
{
bool stop = (opcode == B_ENTRY_REMOVED);
if (stop) {
msg->FindInt64("directory", &toDir);
} else { // It must have moved.
stop = ((msg->FindInt64("from directory", &fromDir) == B_OK) &&
(msg->FindInt64("to directory", &toDir) == B_OK) &&
(toDir != fromDir));
}
if (stop) {
watch_node(&node, B_STOP_WATCHING, this);
/* Find the full path from the TRTorrents.
* The index of the TRTorrent that is caching the information
* IS NOT the index of the torrent in the engine. These are
* Totally decoupled, due to the way transmission is written.
*/
char path[B_FILE_NAME_LENGTH];
TRTransfer* item;
for (int32 i = 0; i < transfers->CountItems(); i++) {
item = (TRTransfer*)transfers->ItemAt(i);
if (item->GetCachedNodeRef() == node) {
strcpy(path, item->GetCachedPath());
}
}
// Look for the torrent info in the engine with the matching
// path name.
tr_stat_t *stats;
int max = tr_torrentStat(engine, &stats);
int index;
for (index = 0; index < max; index++) {
if (strcmp(stats[index].info.torrent, path) == 0) {
tr_torrentClose(engine, index);
transfers->RemoveItem(index);
break;
}
}
free(stats);
}
}
} else if (msg->what == TR_INFO) {
// Display an Info Window.
tr_stat_t *s;
tr_torrentStat(engine, &s);
TRInfoWindow *info = new TRInfoWindow(s[transfers->CurrentSelection()]);
info->MoveTo(Frame().LeftTop() + BPoint(20, 25));
info->Show();
} else if (msg->what == TR_SELECT) {
// Setup the Torrent Menu enabled / disabled state.
int32 selection;
msg->FindInt32("index", &selection);
UpdateList(selection, true);
} else if (msg->what == TR_RESUME) {
worker_info *startData = (worker_info*)calloc(1, sizeof(worker_info));
startData->window = this;
startData->index = (int)transfers->CurrentSelection();
thread_id start_thread = spawn_thread(TRWindow::AsynchStartTorrent, "BirthCanal",
B_NORMAL_PRIORITY, (void *)startData);
if (!((start_thread) < B_OK)) {
resume_thread(start_thread);
} else { // Fallback and start the old way.
StartTorrent(startData->index);
free(startData);
}
} else if (msg->what == TR_PAUSE) {
worker_info *stopData = (worker_info*)calloc(1, sizeof(worker_info));
stopData->window = this;
stopData->index = (int)transfers->CurrentSelection();
thread_id stop_thread = spawn_thread(TRWindow::AsynchStopTorrent, "InUtero",
B_NORMAL_PRIORITY, (void *)stopData);
if (!((stop_thread) < B_OK)) {
resume_thread(stop_thread);
} else { // Fallback and stop it the old way.
StopTorrent(stopData->index);
free(stopData);
}
} else if (msg->what == TR_REMOVE) {
int32 index = transfers->CurrentSelection();
tr_torrentClose(engine, (int)index);
// Remove the file from the filesystem.
TRTransfer *item = (TRTransfer*)transfers->RemoveItem(index);
BEntry *entry = new BEntry(item->GetCachedPath(), true);
entry->Remove();
delete entry;
delete item;
UpdateList(transfers->CurrentSelection(), true);
} else if (msg->what == B_SIMPLE_DATA) {
be_app->RefsReceived(msg);
}
BWindow::MessageReceived(msg);
}
/**
* Handles QuitRequests.
* Displays a BAlert asking if the user really wants to quit if torrents are running.
* If affimative, then we'll stop all the running torrents.
*/
bool TRWindow::QuitRequested() {
bool quit = false;
bool running = false;
tr_stat_t *s;
int max = tr_torrentStat(engine, &s);
for (int i = 0; i < max && !running; i++) {
running = (s[i].status &
(TR_STATUS_CHECK | TR_STATUS_DOWNLOAD | TR_STATUS_SEED));
}
free(s);
if (running) {
BString quitMsg("");
quitMsg << "There's " << max << " torrent";
if (max > 1) {
quitMsg << "s";
}
quitMsg << " currently running.\n"
<< "What would you like to do?";
BAlert *confirmQuit = new BAlert("Confirm Quit", quitMsg.String(),
"Cancel", "Quit", NULL,
B_WIDTH_AS_USUAL, B_WARNING_ALERT);
quit = (confirmQuit->Go() == 1);
} else {
quit = true;
}
if (quit) {
Prefs *prefs = new Prefs(TRANSMISSION_SETTINGS);
prefs->SetRect("window.frame", Frame());
BString strItem("");
for (int i = 0; i < tr_torrentStat(engine, &s); i++) {
strItem = "download.";
strItem << s[i].info.torrent << ".running";
if (s[i].status & (TR_STATUS_CHECK | TR_STATUS_DOWNLOAD | TR_STATUS_SEED)) {
prefs->SetBool(strItem.String(), true);
tr_torrentStop(engine, i);
} else {
prefs->SetBool(strItem.String(), false);
}
}
free(s);
delete prefs;
be_app->PostMessage(new BMessage(B_QUIT_REQUESTED));
}
return quit;
}
void TRWindow::FrameResized(float width, float height) {
transfers->Invalidate();
}
/**
* Called from the StopTorrent thread.
*/
void TRWindow::StopTorrent(int index) {
tr_torrentStop(engine, index);
UpdateList(index, true);
}
/**
* Called from StartTorrent thread.
*/
void TRWindow::StartTorrent(int index) {
// Read the settings.
BString folder("");
Prefs *prefs = new Prefs(TRANSMISSION_SETTINGS);
if (prefs->FindString("download.folder", &folder) != B_OK) {
prefs->SetString("download.folder", "/boot/home/Downloads");
folder << "/boot/home/Downloads";
}
tr_torrentSetFolder(engine, index, folder.String());
tr_torrentStart(engine, index);
if (transfers->CurrentSelection() >= 0) {
UpdateList(index, true);
}
delete prefs;
}
/**
* Called from the be_app Pulse();
* This will update the data structures that the TRTorrents use to render,
* and invalidate the view.
*/
void TRWindow::UpdateList(int32 selection = -1, bool menus = true) {
bool running = false;
tr_stat_t * s;
int i = 0;
int max = tr_torrentStat(engine, &s);
bool invalid[max];
for (i = 0; i < max; i++) {
invalid[i] = ((TRTransfer*)transfers->ItemAt(i))->SetStatus(&(s[i]), (i % 2 != 0));
if (menus && i == (int)selection) {
running = (s[selection].status &
(TR_STATUS_CHECK | TR_STATUS_DOWNLOAD | TR_STATUS_SEED));
}
}
free(s);
if (menus) {
KeyMenuBar()->FindItem(TR_INFO)->SetEnabled(selection >= 0);
KeyMenuBar()->FindItem(TR_RESUME)->SetEnabled(selection >= 0 && !running);
KeyMenuBar()->FindItem(TR_PAUSE)->SetEnabled(selection >= 0 && running);
KeyMenuBar()->FindItem(TR_REMOVE)->SetEnabled(selection >= 0 && !running);
}
if (Lock()) {
for (i = 0; i < max; i++) {
if (invalid[i]) {
transfers->InvalidateItem(i);
}
}
Unlock();
}
}
/**
* Thread Function to stop Torrents. This can be expensive and causes the event loop to
* choke.
*/
int32 TRWindow::AsynchStopTorrent(void *data) {
worker_info* stopData = (worker_info*)data;
stopData->window->StopTorrent(stopData->index);
free(stopData);
return B_OK;
}
/**
* Thread Function to start Torrents. This can be expensive and causes the event loop to
* choke.
*/
int32 TRWindow::AsynchStartTorrent(void *data) {
worker_info* startData = (worker_info*)data;
startData->window->StartTorrent(startData->index);
free(startData);
return B_OK;
}
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