haiku/src/servers/app/Desktop.cpp

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/*
* Copyright 2001-2005, Haiku.
* Distributed under the terms of the MIT License.
*
* Authors:
* Adrian Oanca <adioanca@cotty.iren.ro>
* Stephan Aßmus <superstippi@gmx.de>
* Axel Dörfler, axeld@pinc-software.de
*/
/** Class used to encapsulate desktop management */
#include "Desktop.h"
#include "AppServer.h"
#include "DesktopSettingsPrivate.h"
#include "DrawingEngine.h"
#include "HWInterface.h"
#include "InputManager.h"
#include "Layer.h"
#include "RootLayer.h"
#include "ServerApp.h"
#include "ServerConfig.h"
#include "ServerScreen.h"
#include "ServerWindow.h"
#include "WindowLayer.h"
#include "Workspace.h"
#include <WindowInfo.h>
#include <ServerProtocol.h>
#include <Entry.h>
#include <Message.h>
#include <MessageFilter.h>
#include <Region.h>
#include <stdio.h>
#if TEST_MODE
# include "EventStream.h"
#endif
//#define DEBUG_DESKTOP
#ifdef DEBUG_DESKTOP
# define STRACE(a) printf(a)
#else
# define STRACE(a) ;
#endif
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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class KeyboardFilter : public EventFilter {
public:
KeyboardFilter(Desktop* desktop);
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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virtual filter_result Filter(BMessage* message, EventTarget** _target,
int32* _viewToken);
private:
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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Desktop* fDesktop;
EventTarget* fLastFocus;
bigtime_t fTimestamp;
};
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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class MouseFilter : public EventFilter {
public:
MouseFilter(Desktop* desktop);
virtual filter_result Filter(BMessage* message, EventTarget** _target,
int32* _viewToken);
private:
Desktop* fDesktop;
};
// #pragma mark -
KeyboardFilter::KeyboardFilter(Desktop* desktop)
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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:
fDesktop(desktop),
fLastFocus(NULL),
fTimestamp(0)
{
}
filter_result
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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KeyboardFilter::Filter(BMessage* message, EventTarget** _target,
int32* /*_viewToken*/)
{
int32 key;
int32 modifiers;
if (message->what != B_KEY_DOWN
|| message->FindInt32("key", &key) != B_OK
|| message->FindInt32("modifiers", &modifiers) != B_OK)
return B_DISPATCH_MESSAGE;
// Check for safe video mode (F12 + l-cmd + l-ctrl + l-shift)
if (key == 0x0d
&& (modifiers & (B_LEFT_COMMAND_KEY
| B_LEFT_CONTROL_KEY | B_LEFT_SHIFT_KEY)) != 0)
{
// TODO: Set to Safe Mode in KeyboardEventHandler:B_KEY_DOWN.
STRACE(("Safe Video Mode invoked - code unimplemented\n"));
return B_SKIP_MESSAGE;
}
if (key > 0x01 && key < 0x0e) {
// workspace change, F1-F12
#if !TEST_MODE
if (modifiers & B_COMMAND_KEY)
#else
if (modifiers & B_CONTROL_KEY)
#endif
{
STRACE(("Set Workspace %ld\n", key - 1));
fDesktop->SetWorkspace(key - 2);
return B_SKIP_MESSAGE;
}
}
// TODO: this should be moved client side!
// (that's how it is done in BeOS, clients could need this key for
// different purposes - also, it's preferrable to let the client
// write the dump within his own environment)
if (key == 0xe) {
// screen dump, PrintScreen
char filename[128];
BEntry entry;
int32 index = 1;
do {
sprintf(filename, "/boot/home/screen%ld.png", index++);
entry.SetTo(filename);
} while(entry.Exists());
fDesktop->GetDrawingEngine()->DumpToFile(filename);
return B_SKIP_MESSAGE;
}
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-29 19:01:41 +03:00
bigtime_t now = system_time();
::RootLayer* rootLayer = fDesktop->RootLayer();
rootLayer->Lock();
EventTarget* focus = NULL;
if (rootLayer->Focus() != NULL)
focus = &rootLayer->Focus()->Window()->EventTarget();
// TODO: this is a try to not steal focus from the current window
// in case you enter some text and a window pops up you haven't
// triggered yourself (like a pop-up window in your browser while
// you're typing a password in another window) - maybe this should
// be done differently, though (using something like B_LOCK_WINDOW_FOCUS)
// (at least B_WINDOW_ACTIVATED must be postponed)
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
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if (focus != fLastFocus && now - fTimestamp > 100000) {
// if the time span between the key presses is very short
// we keep our previous focus alive - this is save even
// if the target doesn't exist anymore, as we don't reset
// it, and the event focus passed in is always valid (or NULL)
*_target = focus;
fLastFocus = focus;
}
rootLayer->Unlock();
// we always allow to switch focus after the enter key has pressed
if (key == B_ENTER)
fTimestamp = 0;
else
fTimestamp = now;
return B_DISPATCH_MESSAGE;
}
// #pragma mark -
MouseFilter::MouseFilter(Desktop* desktop)
:
fDesktop(desktop)
{
}
filter_result
MouseFilter::Filter(BMessage* message, EventTarget** _target, int32* _viewToken)
{
BPoint where;
if (message->FindPoint("where", &where) != B_OK)
return B_DISPATCH_MESSAGE;
::RootLayer* rootLayer = fDesktop->RootLayer();
rootLayer->Lock();
WindowLayer* window = rootLayer->MouseEventWindow();
if (window == NULL)
window = rootLayer->WindowAt(where);
if (window != NULL) {
// dispatch event in the window layers
switch (message->what) {
case B_MOUSE_DOWN:
window->MouseDown(message, where, _viewToken);
break;
case B_MOUSE_UP:
window->MouseUp(message, where, _viewToken);
rootLayer->SetMouseEventWindow(NULL);
break;
case B_MOUSE_MOVED:
window->MouseMoved(message, where, _viewToken);
break;
}
if (*_viewToken != B_NULL_TOKEN)
*_target = &window->Window()->EventTarget();
else
*_target = NULL;
} else
*_target = NULL;
rootLayer->Unlock();
return B_DISPATCH_MESSAGE;
}
// #pragma mark -
static inline uint32
workspace_to_workspaces(int32 index)
{
return 1UL << index;
}
static inline bool
workspaces_on_workspace(int32 index, uint32 workspaces)
{
return (workspaces & (1UL << index)) != 0;
}
// #pragma mark -
Desktop::Desktop(uid_t userID)
: MessageLooper("desktop"),
fUserID(userID),
fSettings(new DesktopSettings::Private()),
fAppListLock("application list"),
fShutdownSemaphore(-1),
fWindowLayerList(64),
fActiveScreen(NULL),
fCursorManager()
{
char name[B_OS_NAME_LENGTH];
Desktop::_GetLooperName(name, sizeof(name));
fMessagePort = create_port(DEFAULT_MONITOR_PORT_SIZE, name);
if (fMessagePort < B_OK)
return;
fLink.SetReceiverPort(fMessagePort);
gFontManager->AttachUser(fUserID);
}
Desktop::~Desktop()
{
// root layer only knows the visible WindowLayers, so we delete them all over here
for (int32 i = 0; WindowLayer *border = (WindowLayer *)fWindowLayerList.ItemAt(i); i++)
delete border;
delete fRootLayer;
delete fSettings;
delete_port(fMessagePort);
gFontManager->DetachUser(fUserID);
}
void
Desktop::Init()
{
fVirtualScreen.RestoreConfiguration(*this, fSettings->WorkspacesMessage(0));
// TODO: temporary workaround, fActiveScreen will be removed
fActiveScreen = fVirtualScreen.ScreenAt(0);
// TODO: add user identity to the name
char name[32];
sprintf(name, "RootLayer %d", 1);
fRootLayer = new ::RootLayer(name, this, GetDrawingEngine());
#if TEST_MODE
gInputManager->AddStream(new InputServerStream);
#endif
fEventDispatcher.SetTo(gInputManager->GetStream());
fEventDispatcher.SetHWInterface(fVirtualScreen.HWInterface());
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-29 19:01:41 +03:00
fEventDispatcher.SetMouseFilter(new MouseFilter(this));
fEventDispatcher.SetKeyboardFilter(new KeyboardFilter(this));
// take care of setting the default cursor
ServerCursor *cursor = fCursorManager.GetCursor(B_CURSOR_DEFAULT);
if (cursor)
fVirtualScreen.HWInterface()->SetCursor(cursor);
fVirtualScreen.HWInterface()->MoveCursorTo(fVirtualScreen.Frame().Width() / 2,
fVirtualScreen.Frame().Height() / 2);
fVirtualScreen.HWInterface()->SetCursorVisible(true);
}
void
Desktop::_GetLooperName(char* name, size_t length)
{
snprintf(name, length, "d:%d:%s", /*id*/0, /*name*/"baron");
}
void
Desktop::_PrepareQuit()
{
// let's kill all remaining applications
fAppListLock.Lock();
int32 count = fAppList.CountItems();
for (int32 i = 0; i < count; i++) {
ServerApp *app = (ServerApp*)fAppList.ItemAt(i);
team_id clientTeam = app->ClientTeam();
app->Quit();
kill_team(clientTeam);
}
// wait for the last app to die
if (count > 0)
acquire_sem_etc(fShutdownSemaphore, fShutdownCount, B_RELATIVE_TIMEOUT, 250000);
fAppListLock.Unlock();
}
void
Desktop::_DispatchMessage(int32 code, BPrivate::LinkReceiver &link)
{
switch (code) {
case AS_CREATE_APP:
{
// Create the ServerApp to node monitor a new BApplication
// Attached data:
// 1) port_id - receiver port of a regular app
// 2) port_id - client looper port - for sending messages to the client
// 2) team_id - app's team ID
// 3) int32 - handler token of the regular app
// 4) char * - signature of the regular app
// Find the necessary data
team_id clientTeamID = -1;
port_id clientLooperPort = -1;
port_id clientReplyPort = -1;
int32 htoken = B_NULL_TOKEN;
char *appSignature = NULL;
link.Read<port_id>(&clientReplyPort);
link.Read<port_id>(&clientLooperPort);
link.Read<team_id>(&clientTeamID);
link.Read<int32>(&htoken);
if (link.ReadString(&appSignature) != B_OK)
break;
ServerApp *app = new ServerApp(this, clientReplyPort,
clientLooperPort, clientTeamID, htoken, appSignature);
if (app->InitCheck() == B_OK
&& app->Run()) {
// add the new ServerApp to the known list of ServerApps
fAppListLock.Lock();
fAppList.AddItem(app);
fAppListLock.Unlock();
} else {
delete app;
// if everything went well, ServerApp::Run() will notify
// the client - but since it didn't, we do it here
BPrivate::LinkSender reply(clientReplyPort);
reply.StartMessage(SERVER_FALSE);
reply.Flush();
}
// This is necessary because BPortLink::ReadString allocates memory
free(appSignature);
break;
}
case AS_DELETE_APP:
{
// Delete a ServerApp. Received only from the respective ServerApp when a
// BApplication asks it to quit.
// Attached Data:
// 1) thread_id - thread ID of the ServerApp to be deleted
thread_id thread = -1;
if (link.Read<thread_id>(&thread) < B_OK)
break;
fAppListLock.Lock();
// Run through the list of apps and nuke the proper one
int32 count = fAppList.CountItems();
ServerApp *removeApp = NULL;
for (int32 i = 0; i < count; i++) {
ServerApp *app = (ServerApp *)fAppList.ItemAt(i);
if (app != NULL && app->Thread() == thread) {
fAppList.RemoveItem(i);
removeApp = app;
break;
}
}
fAppListLock.Unlock();
if (removeApp != NULL)
removeApp->Quit(fShutdownSemaphore);
if (fQuitting && count <= 1) {
// wait for the last app to die
acquire_sem_etc(fShutdownSemaphore, fShutdownCount, B_RELATIVE_TIMEOUT, 500000);
PostMessage(kMsgQuitLooper);
}
break;
}
case AS_ACTIVATE_APP:
{
// Someone is requesting to activation of a certain app.
// Attached data:
// 1) port_id reply port
// 2) team_id team
status_t status;
// get the parameters
port_id replyPort;
team_id team;
if (link.Read(&replyPort) == B_OK
&& link.Read(&team) == B_OK)
status = _ActivateApp(team);
else
status = B_ERROR;
// send the reply
BPrivate::PortLink replyLink(replyPort);
replyLink.StartMessage(status);
replyLink.Flush();
break;
}
case AS_SET_SYSCURSOR_DEFAULTS:
{
GetCursorManager().SetDefaults();
break;
}
case B_QUIT_REQUESTED:
// We've been asked to quit, so (for now) broadcast to all
// test apps to quit. This situation will occur only when the server
// is compiled as a regular Be application.
fAppListLock.Lock();
fShutdownSemaphore = create_sem(0, "desktop shutdown");
fShutdownCount = fAppList.CountItems();
fAppListLock.Unlock();
fQuitting = true;
BroadcastToAllApps(AS_QUIT_APP);
// We now need to process the remaining AS_DELETE_APP messages and
// wait for the kMsgShutdownServer message.
// If an application does not quit as asked, the picasso thread
// will send us this message in 2-3 seconds.
// if there are no apps to quit, shutdown directly
if (fShutdownCount == 0)
PostMessage(kMsgQuitLooper);
break;
default:
printf("Desktop %d:%s received unexpected code %ld\n", 0, "baron", code);
if (link.NeedsReply()) {
// the client is now blocking and waiting for a reply!
fLink.StartMessage(B_ERROR);
fLink.Flush();
}
break;
}
}
/*!
\brief activate one of the app's windows.
*/
status_t
Desktop::_ActivateApp(team_id team)
{
status_t status = B_BAD_TEAM_ID;
// search for an unhidden window to give focus to
int32 windowCount = WindowList().CountItems();
for (int32 i = 0; i < windowCount; ++i) {
// is this layer in fact a WindowLayer?
WindowLayer *windowLayer = WindowList().ItemAt(i);
// if winBorder is valid and not hidden, then we've found our target
if (windowLayer != NULL && !windowLayer->IsHidden()
&& windowLayer->App()->ClientTeam() == team) {
fRootLayer->ActivateWindow(windowLayer);
return B_OK;
}
}
return status;
}
/*!
\brief Send a quick (no attachments) message to all applications
Quite useful for notification for things like server shutdown, system
color changes, etc.
*/
void
Desktop::BroadcastToAllApps(int32 code)
{
BAutolock locker(fAppListLock);
for (int32 i = 0; i < fAppList.CountItems(); i++) {
ServerApp *app = (ServerApp *)fAppList.ItemAt(i);
app->PostMessage(code);
}
}
void
Desktop::SetWorkspace(int32 index)
{
BAutolock _(this);
DesktopSettings settings(this);
if (index < 0 || index >= settings.WorkspacesCount() || index == fCurrentWorkspace)
return;
int32 previousIndex = fCurrentWorkspace;
fCurrentWorkspace = index;
fRootLayer->SetWorkspace(index, fWorkspaces[previousIndex],
fWorkspaces[index]);
}
void
Desktop::ScreenChanged(Screen* screen)
{
BMessage update(B_SCREEN_CHANGED);
update.AddInt64("when", real_time_clock_usecs());
update.AddRect("frame", screen->Frame());
update.AddInt32("mode", screen->ColorSpace());
BAutolock locker(this);
// send B_SCREEN_CHANGED to windows on that screen
// TODO: currently ignores the screen argument!
for (int32 i = fWindowLayerList.CountItems(); i-- > 0;) {
WindowLayer* layer = fWindowLayerList.ItemAt(i);
ServerWindow* window = layer->Window();
window->SendMessageToClient(&update);
}
}
// #pragma mark - Methods for WindowLayer manipulation
void
Desktop::ActivateWindow(WindowLayer* windowLayer)
{
fRootLayer->ActivateWindow(windowLayer);
}
void
Desktop::SendBehindWindow(WindowLayer* windowLayer, WindowLayer* front)
{
fRootLayer->SendBehindWindow(windowLayer, front);
}
void
Desktop::ShowWindow(WindowLayer* window)
{
if (!window->IsHidden() || window->Parent() == NULL) {
window->Show(false);
return;
}
fRootLayer->ShowWindowLayer(window);
// If the mouse cursor is directly over the newly visible window,
// we'll send a fake mouse moved message to the window, so that
// it knows the mouse is over it.
BPoint where;
int32 buttons;
EventDispatcher().GetMouse(where, buttons);
int32 viewToken = B_NULL_TOKEN;
fRootLayer->Lock();
if (fRootLayer->WindowAt(where) == window) {
Layer* layer = window->LayerAt(where);
if (layer != NULL && layer != window)
viewToken = layer->ViewToken();
}
fRootLayer->Unlock();
if (viewToken != B_NULL_TOKEN)
EventDispatcher().SendFakeMouseMoved(window->Window()->EventTarget(), viewToken);
}
void
Desktop::HideWindow(WindowLayer* window)
{
if (window->IsHidden() || window->Parent() == NULL) {
window->Hide(false);
return;
}
fRootLayer->HideWindowLayer(window);
}
/*!
\brief Adds or removes the window to or from the workspaces it's on.
*/
void
Desktop::_ChangeWindowWorkspaces(WindowLayer* window, uint32 oldWorkspaces,
uint32 newWorkspaces)
{
// apply changes to the workspaces' window list
// (and RootLayer, for the current workspace)
for (int32 i = 0; i < kMaxWorkspaces; i++) {
if (workspaces_on_workspace(i, oldWorkspaces)) {
// window is on this workspace, is it anymore?
if (!workspaces_on_workspace(i, newWorkspaces)) {
if (i == CurrentWorkspace())
RootLayer()->RemoveWindowLayer(window);
else
fWorkspaces[i].RemoveWindow(window);
}
} else {
// window was not on this workspace, is it now?
if (workspaces_on_workspace(i, newWorkspaces)) {
if (i == CurrentWorkspace())
RootLayer()->AddWindowLayer(window);
else
fWorkspaces[i].AddWindow(window);
}
}
}
}
void
Desktop::SetWindowWorkspaces(WindowLayer* window, uint32 workspaces)
{
BAutolock _(this);
if (workspaces == B_CURRENT_WORKSPACE)
workspaces = workspace_to_workspaces(CurrentWorkspace());
_ChangeWindowWorkspaces(window, window->Workspaces(), workspaces);
window->SetWorkspaces(workspaces);
}
void
Desktop::AddWindow(WindowLayer *window)
{
BAutolock _(this);
if (fWindowLayerList.HasItem(window)) {
debugger("AddWindowLayer: WindowLayer already in Desktop list\n");
return;
}
fWindowLayerList.AddItem(window);
if (window->Workspaces() == B_CURRENT_WORKSPACE)
window->SetWorkspaces(workspace_to_workspaces(CurrentWorkspace()));
_ChangeWindowWorkspaces(window, 0, window->Workspaces());
}
void
Desktop::RemoveWindow(WindowLayer *window)
{
BAutolock _(this);
fWindowLayerList.RemoveItem(window);
_ChangeWindowWorkspaces(window, window->Workspaces(), 0);
// make sure this window won't get any events anymore
if (window->Window() != NULL)
EventDispatcher().RemoveTarget(window->Window()->EventTarget());
}
Have I said input event handling is done? * didn't realize that mouse events always go to the view under the mouse, not only if its the focus window (FFM can really do harm, after all :-)). * removed a TODO from the list: EventDispatcher::Target is now a public class EventTarget, and every ServerWindow has one. * as a result, EventDispatcher no longer manages targets itself, it just maintains a list of them. You no longer set messengers, you only set targets. * customization of the message filters, they no longer inherit from BMessageFilter (but EventFilter). * a message target is no longer set explicetly anywhere, it's only changed in the message filters if needed. * therefore, no more locking mess in the EventDispatcher needed. * this also made the EventDispatcher::fLastFocus stuff superfluous. * moved the RootLayer::MouseEventHandler() into the message filter. * Replaced RootLayer::_ChildAt() with WindowAt(). * WindowLayer now has an idea if it has focus or not, it no longer needs to query the RootLayer for this - maybe we should rename "focus" to "active", though (as far as layers are concerned). * the "_view_token" data is now added from the EventDispatcher, not the (Window)Layer class anymore. * removed Layer::MouseWheelChanged() as we currently don't need it (if the need arises, we can add it back later again) * there is still no mouse moved message sent when opening a window under the cursor, though... git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15228 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-11-29 19:01:41 +03:00
void
Desktop::SetWindowFeel(WindowLayer *window, uint32 feel)
{
// TODO: implement
}
void
Desktop::SetWindowLook(WindowLayer *window, uint32 look)
{
// TODO: implement
}
WindowLayer *
Desktop::FindWindowLayerByClientToken(int32 token, team_id teamID)
{
BAutolock locker(this);
WindowLayer *wb;
for (int32 i = 0; (wb = (WindowLayer *)fWindowLayerList.ItemAt(i)); i++) {
if (wb->Window()->ClientToken() == token
&& wb->Window()->ClientTeam() == teamID)
return wb;
}
return NULL;
}
const BObjectList<WindowLayer> &
Desktop::WindowList() const
{
if (!IsLocked())
debugger("You must lock before getting registered windows list\n");
return fWindowLayerList;
}
void
Desktop::WriteWindowList(team_id team, BPrivate::LinkSender& sender)
{
BAutolock locker(this);
// compute the number of windows
int32 count = 0;
if (team >= B_OK) {
for (int32 i = 0; i < fWindowLayerList.CountItems(); i++) {
WindowLayer* layer = fWindowLayerList.ItemAt(i);
if (layer->Window()->ClientTeam() == team)
count++;
}
} else
count = fWindowLayerList.CountItems();
// write list
sender.StartMessage(B_OK);
sender.Attach<int32>(count);
for (int32 i = 0; i < fWindowLayerList.CountItems(); i++) {
WindowLayer* layer = fWindowLayerList.ItemAt(i);
if (team >= B_OK && layer->Window()->ClientTeam() != team)
continue;
sender.Attach<int32>(layer->Window()->ServerToken());
}
sender.Flush();
}
void
Desktop::WriteWindowInfo(int32 serverToken, BPrivate::LinkSender& sender)
{
BAutolock locker(this);
BAutolock tokenLocker(BPrivate::gDefaultTokens);
ServerWindow* window;
if (BPrivate::gDefaultTokens.GetToken(serverToken,
B_SERVER_TOKEN, (void**)&window) != B_OK) {
sender.StartMessage(B_ENTRY_NOT_FOUND);
sender.Flush();
return;
}
window_info info;
window->GetInfo(info);
int32 length = window->Title() ? strlen(window->Title()) : 0;
sender.StartMessage(B_OK);
sender.Attach<int32>(sizeof(window_info) + length + 1);
sender.Attach(&info, sizeof(window_info));
if (length > 0)
sender.Attach(window->Title(), length + 1);
else
sender.Attach<char>('\0');
sender.Flush();
}