Changed current workspace signal in BScreen to use the new signal system

ChangeLog

@@ -1,5 +1,10 @@
  (Format: Year/Month/Day)
 Changes for 1.1.2
+*08/09/21:
+   * Changed current workspace signal in Bscreen to use the new signal
+     system (Henrik)
+     FocusableList.hh/cc, Screen.hh/cc, SendToMenu.hh/cc,
+     WorkspaceMenu.hh/cc, WorkspaceNameTool.hh/cc, fluxbox.hh/cc
 *08/09/18:
    * Changed workspace count signal in BScreen to use the new signal
      system. (Henrik)

src/FocusableList.cc

@@ -28,6 +28,7 @@
 #include "Window.hh"
 
 #include "FbTk/StringUtil.hh"
+#include "FbTk/MemFun.hh"
 
 #include <vector>
 
@@ -95,8 +96,10 @@ void FocusableList::init() {
     m_parent->attachChild(*this);
 
     // TODO: can't handle (head=[mouse]) yet
-    if (m_pat->dependsOnCurrentWorkspace())
+    if (m_pat->dependsOnCurrentWorkspace()) {
-        m_screen.currentWorkspaceSig().attach(this);
+        join(m_screen.currentWorkspaceSig(),
+             FbTk::MemFun(*this, &FocusableList::workspaceChanged));
+    }
     if (m_pat->dependsOnFocusedWindow())
         m_screen.focusedWindowSig().attach(this);
 }
@@ -147,8 +150,7 @@ void FocusableList::update(FbTk::Subject *subj) {
             if (insertFromParent(*win))
                 m_ordersig.notify(win);
         }
-    } else if (subj == &m_screen.currentWorkspaceSig() ||
+    } else if (subj == &m_screen.focusedWindowSig())
-               subj == &m_screen.focusedWindowSig())
         reset();
 }
 
@@ -309,3 +311,7 @@ void FocusableList::attachChild(FocusableList &child) const {
     m_resetsig.attach(&child);
     m_ordersig.attach(&child);
 }
+
+void FocusableList::workspaceChanged(BScreen &screen) {
+    reset();
+}

src/FocusableList.hh

@@ -25,6 +25,7 @@
 #include "FbTk/NotCopyable.hh"
 #include "FbTk/Observer.hh"
 #include "FbTk/Subject.hh"
+#include "FbTk/Signal.hh"
 
 #include "ClientPattern.hh"
 
@@ -35,7 +36,8 @@
 class BScreen;
 class Focusable;
 
-class FocusableList: public FbTk::Observer, private FbTk::NotCopyable {
+class FocusableList: public FbTk::Observer, private FbTk::NotCopyable,
+                     private FbTk::SignalTracker {
 public:
     typedef std::list<Focusable *> Focusables;
 
@@ -110,6 +112,7 @@ private:
     void detachSignals(Focusable &win);
     void reset();
     void attachChild(FocusableList &child) const;
+    void workspaceChanged(BScreen& screen);
 
     std::auto_ptr<ClientPattern> m_pat;
     const FocusableList *m_parent;

src/Screen.cc

@@ -343,7 +343,6 @@ BScreen::BScreen(FbTk::ResourceManager &rm,
     m_iconlist_sig(*this), // icon list signal
     m_workspacenames_sig(*this), // workspace names signal
     m_workspace_area_sig(*this), // workspace area signal
-    m_currentworkspace_sig(*this), // current workspace signal
     m_focusedwindow_sig(*this), // focused window signal
     m_reconfigure_sig(*this), // reconfigure signal
     m_resize_sig(*this),
@@ -1199,7 +1198,7 @@ void BScreen::changeWorkspaceID(unsigned int id, bool revert) {
 
     FbTk::App::instance()->sync(false);
 
-    m_currentworkspace_sig.notify();
+    m_currentworkspace_sig.emit(*this);
 
     // do this after atom handlers, so scripts can access new workspace number
     Fluxbox::instance()->keys()->doAction(FocusIn, 0, 0, Keys::ON_DESKTOP);

src/Screen.hh

@@ -220,7 +220,7 @@ public:
     /// workspace area signal
     FbTk::Subject &workspaceAreaSig() { return m_workspace_area_sig; }
     /// current workspace signal
-    FbTk::Subject &currentWorkspaceSig() { return m_currentworkspace_sig; }
+    FbTk::Signal<void, BScreen&> &currentWorkspaceSig() { return m_currentworkspace_sig; }
     /// focused window signal
     FbTk::Subject &focusedWindowSig() { return m_focusedwindow_sig; }
     /// reconfigure signal
@@ -496,13 +496,13 @@ private:
         m_iconlist_sig, ///< notify if a window gets iconified/deiconified
         m_workspacenames_sig, ///< workspace names signal
         m_workspace_area_sig, ///< workspace area changed signal
-        m_currentworkspace_sig, ///< current workspace signal
         m_focusedwindow_sig, ///< focused window signal
         m_reconfigure_sig, ///< reconfigure signal
         m_resize_sig, ///< resize signal
         m_bg_change_sig; ///< background change signal
 
     FbTk::Signal<void, BScreen&> m_workspacecount_sig; ///< workspace count signal
+    FbTk::Signal<void, BScreen&> m_currentworkspace_sig; ///< current workspace signal
     FbTk::MultLayers m_layermanager;
 
     bool root_colormap_installed, managed;

src/SendToMenu.cc

@@ -58,11 +58,14 @@ SendToMenu::SendToMenu(BScreen &screen):
     m_rebuildObs = makeObserver(*this, &SendToMenu::rebuildMenu);
 
     screen.workspaceNamesSig().attach(m_rebuildObs);
-    screen.currentWorkspaceSig().attach(m_rebuildObs);
+
+    // setup new signal system
+    join( screen.currentWorkspaceSig(),
+          FbTk::MemFun(*this, &SendToMenu::rebuildMenuForScreen));
 
     // setup new signal system
     join( screen.workspaceCountSig(),
-          FbTk::MemFun(*this, &SendToMenu::workspaceCountChange) );
+          FbTk::MemFun(*this, &SendToMenu::rebuildMenuForScreen));
 
     // no title for this menu, it should be a submenu in the window menu.
     disableTitle();

src/SendToMenu.hh

@@ -46,7 +46,7 @@ public:
     void show();
 private:
     /// workspace count changed on screen
-    void workspaceCountChange( BScreen& screen ) {
+    void rebuildMenuForScreen( BScreen& screen ) {
         rebuildMenu();
     }
 

src/WorkspaceMenu.cc

@@ -83,24 +83,26 @@ void WorkspaceMenu::workspaceInfoChanged( BScreen& screen ) {
     updateMenu(-1);
 }
 
+void WorkspaceMenu::workspaceChanged(BScreen& screen) {
+    FbTk::MenuItem *item = 0;
+    for (unsigned int i = 0; i < screen.numberOfWorkspaces(); ++i) {
+        item = find(i + IDX_AFTER_ICONS);
+        if (item && item->isSelected()) {
+            setItemSelected(i + IDX_AFTER_ICONS, false);
+            updateMenu(i + IDX_AFTER_ICONS);
+            break;
+        }
+    }
+    setItemSelected(screen.currentWorkspace()->workspaceID() + IDX_AFTER_ICONS, true);
+    updateMenu(screen.currentWorkspace()->workspaceID() + IDX_AFTER_ICONS);
+}
+
 void WorkspaceMenu::update(FbTk::Subject *subj) {
 
     if (subj != 0 && typeid(*subj) == typeid(BScreen::ScreenSubject)) {
         BScreen::ScreenSubject &screen_subj = *static_cast<BScreen::ScreenSubject *>(subj);
         BScreen &screen = screen_subj.screen();
-        if (subj == &screen.currentWorkspaceSig()) {
+        if ( subj == &screen.workspaceNamesSig() ) {
-            FbTk::MenuItem *item = 0;
-            for (unsigned int i = 0; i < screen.numberOfWorkspaces(); ++i) {
-                item = find(i + IDX_AFTER_ICONS);
-                if (item && item->isSelected()) {
-                    setItemSelected(i + IDX_AFTER_ICONS, false);
-                    updateMenu(i + IDX_AFTER_ICONS);
-                    break;
-                }
-            }
-            setItemSelected(screen.currentWorkspace()->workspaceID() + IDX_AFTER_ICONS, true);
-            updateMenu(screen.currentWorkspace()->workspaceID() + IDX_AFTER_ICONS);
-        } else if ( subj == &screen.workspaceNamesSig() ) {
             workspaceInfoChanged( screen );
         }
     } else {
@@ -109,12 +111,13 @@ void WorkspaceMenu::update(FbTk::Subject *subj) {
 }
 
 void WorkspaceMenu::init(BScreen &screen) {
-    screen.currentWorkspaceSig().attach(this);
 
     screen.workspaceNamesSig().attach(this);
 
-    join( screen.workspaceCountSig(),
+    join(screen.currentWorkspaceSig(),
-          FbTk::MemFun( *this, &WorkspaceMenu::workspaceInfoChanged ) );
+         FbTk::MemFun(*this, &WorkspaceMenu::workspaceChanged));
+    join(screen.workspaceCountSig(),
+         FbTk::MemFun(*this, &WorkspaceMenu::workspaceInfoChanged));
 
     using namespace FbTk;
     _FB_USES_NLS;

src/WorkspaceMenu.hh

@@ -45,7 +45,9 @@ private:
     void init(BScreen &screen);
     /// Called when workspace info was changed 
     /// ( number of workspace, workspace names etc )
-    void workspaceInfoChanged( BScreen& screen );
+    void workspaceInfoChanged(BScreen& screen);
+    /// Called when workspace was switched.
+    void workspaceChanged(BScreen& screen);
 };
 
 #endif //  WORKSPACEMENU_HH

src/WorkspaceNameTool.cc

@@ -27,6 +27,7 @@
 #include "Workspace.hh"
 
 #include "FbTk/ImageControl.hh"
+#include "FbTk/MemFun.hh"
 
 #include <algorithm>
 
@@ -43,7 +44,10 @@ WorkspaceNameTool::WorkspaceNameTool(const FbTk::FbWindow &parent,
 
     // setup signals
     screen.workspaceNamesSig().attach(this);
-    screen.currentWorkspaceSig().attach(this);
+
+    join(screen.currentWorkspaceSig(),
+         FbTk::MemFun(*this, &WorkspaceNameTool::updateForScreen));
+
     theme.reconfigSig().attach(this);
 }
 
@@ -67,8 +71,11 @@ void WorkspaceNameTool::moveResize(int x, int y,
 }
 
 void WorkspaceNameTool::update(FbTk::Subject *subj) {
+    updateForScreen(m_screen);
+}
 
-    m_button.setText(m_screen.currentWorkspace()->name());
+void WorkspaceNameTool::updateForScreen(BScreen &screen) {
+    m_button.setText(screen.currentWorkspace()->name());
     if (m_button.width() != width()) {
         resize(width(), height());
         resizeSig().notify();

src/WorkspaceNameTool.hh

@@ -27,6 +27,7 @@
 
 #include "FbTk/TextButton.hh"
 #include "FbTk/Observer.hh"
+#include "FbTk/Signal.hh"
 
 class BScreen;
 class ToolTheme;
@@ -35,7 +36,8 @@ namespace FbTk {
 template <class T> class ThemeProxy;
 }
 
-class WorkspaceNameTool: public ToolbarItem, public FbTk::Observer {
+class WorkspaceNameTool: public ToolbarItem, public FbTk::Observer,
+                         private FbTk::SignalTracker {
 public:
     WorkspaceNameTool(const FbTk::FbWindow &parent, FbTk::ThemeProxy<ToolTheme> &theme, BScreen &screen);
     virtual ~WorkspaceNameTool();
@@ -59,6 +61,9 @@ public:
     void parentMoved() { m_button.parentMoved(); }
 
 private:
+    /// Called when workspace changed on \c screen
+    void updateForScreen(BScreen &screen);
+
     void renderTheme(unsigned char alpha);
     void reRender();
     void updateSizing();

src/fluxbox.cc

@@ -453,14 +453,16 @@ void Fluxbox::initScreen(BScreen *screen) {
     screen->initWindows();
 
     // attach screen signals to this
-    screen->currentWorkspaceSig().attach(this);
     screen->focusedWindowSig().attach(this);
     screen->workspaceNamesSig().attach(this);
     screen->workspaceAreaSig().attach(this);
     screen->clientListSig().attach(this);
 
-    join( screen->workspaceCountSig(), 
+    join(screen->currentWorkspaceSig(), 
-          FbTk::MemFun( *this, &Fluxbox::workspaceCountChanged ) );
+         FbTk::MemFun(*this, &Fluxbox::workspaceChanged));
+
+    join(screen->workspaceCountSig(), 
+         FbTk::MemFun(*this, &Fluxbox::workspaceCountChanged));
 
     // initiate atomhandler for screen specific stuff
     for (AtomHandlerContainerIt it= m_atomhandler.begin();
@@ -1106,12 +1108,6 @@ void Fluxbox::update(FbTk::Subject *changedsub) {
                 if ((*it).first->update())
                     (*it).first->updateWorkspaceNames(screen);
             }
-        } else if ((&(screen.currentWorkspaceSig())) == changedsub) {
-            for (AtomHandlerContainerIt it= m_atomhandler.begin();
-                 it != m_atomhandler.end(); ++it) {
-                if ((*it).first->update())
-                    (*it).first->updateCurrentWorkspace(screen);
-            }
         } else if ((&(screen.focusedWindowSig())) == changedsub) {
             for (AtomHandlerContainerIt it= m_atomhandler.begin();
                  it != m_atomhandler.end(); it++) {
@@ -1526,3 +1522,11 @@ void Fluxbox::workspaceCountChanged( BScreen& screen ) {
             (*it).first->updateWorkspaceCount(screen);
     }
 }
+
+void Fluxbox::workspaceChanged( BScreen& screen ) {
+    for (AtomHandlerContainerIt it= m_atomhandler.begin();
+         it != m_atomhandler.end(); ++it) {
+        if ((*it).first->update())
+            (*it).first->updateCurrentWorkspace(screen);
+    }
+}

src/fluxbox.hh

@@ -203,6 +203,8 @@ private:
 
     /// Called when workspace count on a specific screen changed.
     void workspaceCountChanged( BScreen& screen );
+    /// Called when workspace was switched
+    void workspaceChanged(BScreen& screen);
 
     std::auto_ptr<FbAtoms> m_fbatoms;