combine focushandler into one file.

1 files changed, 511 insertions, 7 deletions

diff --git a/src/gui/focushandler.cpp b/src/gui/focushandler.cpp
index 04cb3f555..22153c91f 100644
--- a/src/gui/focushandler.cpp
+++ b/src/gui/focushandler.cpp
@@ -20,6 +20,49 @@
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include "gui/focushandler.h"
 
 #include "gui/gui.h"
@@ -28,6 +71,20 @@
 
 #include "debug.h"
 
+FocusHandler::FocusHandler() :
+    mWidgets(),
+    mFocusedWidget(nullptr),
+    mModalFocusedWidget(nullptr),
+    mModalMouseInputFocusedWidget(nullptr),
+    mDraggedWidget(nullptr),
+    mLastWidgetWithMouse(nullptr),
+    mLastWidgetWithModalFocus(nullptr),
+    mLastWidgetWithModalMouseInputFocus(nullptr),
+    mLastWidgetPressed(nullptr),
+    mModalStack()
+{
+}
+
 void FocusHandler::requestModalFocus(gcn::Widget *widget)
 {
     /* If there is another widget with modal focus, remove its modal focus
@@ -39,7 +96,9 @@ void FocusHandler::requestModalFocus(gcn::Widget *widget)
         mModalFocusedWidget = nullptr;
     }
 
-    gcn::FocusHandler::requestModalFocus(widget);
+    mModalFocusedWidget = widget;
+    if (mFocusedWidget && !mFocusedWidget->isModalFocused())
+        focusNone();
 }
 
 void FocusHandler::releaseModalFocus(gcn::Widget *widget)
@@ -48,14 +107,15 @@ void FocusHandler::releaseModalFocus(gcn::Widget *widget)
 
     if (mModalFocusedWidget == widget)
     {
-        gcn::FocusHandler::releaseModalFocus(widget);
+        if (mModalFocusedWidget == widget)
+            mModalFocusedWidget = nullptr;
 
         /* Check if there were any previously modal widgets that'd still like
          * to regain their modal focus.
          */
         if (!mModalStack.empty())
         {
-            gcn::FocusHandler::requestModalFocus(mModalStack.front());
+            requestModalFocus(mModalStack.front());
             mModalStack.pop_front();
         }
     }
@@ -65,19 +125,188 @@ void FocusHandler::remove(gcn::Widget *widget)
 {
     releaseModalFocus(widget);
 
-    gcn::FocusHandler::remove(widget);
+    if (isFocused(widget))
+        mFocusedWidget = nullptr;
+
+    for (WidgetIterator iter = mWidgets.begin();
+          iter != mWidgets.end(); ++iter)
+    {
+        if ((*iter) == widget)
+        {
+            mWidgets.erase(iter);
+            break;
+        }
+    }
+
+    if (mDraggedWidget == widget)
+    {
+        mDraggedWidget = nullptr;
+        return;
+    }
+
+    if (mLastWidgetWithMouse == widget)
+    {
+        mLastWidgetWithMouse = nullptr;
+        return;
+    }
+
+    if (mLastWidgetWithModalFocus == widget)
+    {
+        mLastWidgetWithModalFocus = nullptr;
+        return;
+    }
+
+    if (mLastWidgetWithModalMouseInputFocus == widget)
+    {
+        mLastWidgetWithModalMouseInputFocus = nullptr;
+        return;
+    }
+
+    if (mLastWidgetPressed == widget)
+    {
+        mLastWidgetPressed = nullptr;
+        return;
+    }
 }
 
 void FocusHandler::tabNext()
 {
-    gcn::FocusHandler::tabNext();
+    if (mFocusedWidget)
+    {
+        if (!mFocusedWidget->isTabOutEnabled())
+            return;
+    }
+
+    if (mWidgets.empty())
+    {
+        mFocusedWidget = nullptr;
+        return;
+    }
+
+    int i;
+    int focusedWidget = -1;
+    const int sz = static_cast<int>(mWidgets.size());
+    for (i = 0; i < sz; ++ i)
+    {
+        if (mWidgets[i] == mFocusedWidget)
+            focusedWidget = i;
+    }
+    const int focused = focusedWidget;
+    bool done = false;
+
+    // i is a counter that ensures that the following loop
+    // won't get stuck in an infinite loop
+    i = sz;
+    do
+    {
+        ++ focusedWidget;
+
+        if (i == 0)
+        {
+            focusedWidget = -1;
+            break;
+        }
+
+        -- i;
+
+        if (focusedWidget >= sz)
+            focusedWidget = 0;
+
+        if (focusedWidget == focused)
+            return;
+
+        const gcn::Widget *const widget = mWidgets.at(focusedWidget);
+        if (widget->isFocusable() && widget->isTabInEnabled() &&
+            (!mModalFocusedWidget || widget->isModalFocused()))
+        {
+            done = true;
+        }
+    }
+    while (!done);
+
+    if (focusedWidget >= 0)
+    {
+        mFocusedWidget = mWidgets.at(focusedWidget);
+        Event focusEvent(mFocusedWidget);
+        distributeFocusGainedEvent(focusEvent);
+    }
+
+    if (focused >= 0)
+    {
+        Event focusEvent(mWidgets.at(focused));
+        distributeFocusLostEvent(focusEvent);
+    }
 
     checkForWindow();
 }
 
 void FocusHandler::tabPrevious()
 {
-    gcn::FocusHandler::tabPrevious();
+    if (mFocusedWidget)
+    {
+        if (!mFocusedWidget->isTabOutEnabled())
+            return;
+    }
+
+    if (mWidgets.empty())
+    {
+        mFocusedWidget = nullptr;
+        return;
+    }
+
+    int i;
+    int focusedWidget = -1;
+    const int sz = static_cast<int>(mWidgets.size());
+    for (i = 0; i < sz; ++ i)
+    {
+        if (mWidgets[i] == mFocusedWidget)
+            focusedWidget = i;
+    }
+    const int focused = focusedWidget;
+    bool done = false;
+
+    // i is a counter that ensures that the following loop
+    // won't get stuck in an infinite loop
+    i = sz;
+    do
+    {
+        -- focusedWidget;
+
+        if (i == 0)
+        {
+            focusedWidget = -1;
+            break;
+        }
+
+        -- i;
+
+        if (focusedWidget <= 0)
+            focusedWidget = sz - 1;
+
+        if (focusedWidget == focused)
+            return;
+
+        const gcn::Widget *const widget = mWidgets.at(focusedWidget);
+        if (widget->isFocusable() && widget->isTabInEnabled() &&
+            (!mModalFocusedWidget || widget->isModalFocused()))
+        {
+            done = true;
+        }
+    }
+    while (!done);
+
+    if (focusedWidget >= 0)
+    {
+        mFocusedWidget = mWidgets.at(focusedWidget);
+        Event focusEvent(mFocusedWidget);
+        distributeFocusGainedEvent(focusEvent);
+    }
+
+    if (focused >= 0)
+    {
+        Event focusEvent(mWidgets.at(focused));
+        distributeFocusLostEvent(focusEvent);
+    }
 
     checkForWindow();
 }
@@ -107,5 +336,280 @@ void FocusHandler::distributeFocusGainedEvent(const Event &focusEvent)
 {
     if (gui)
         gui->distributeGlobalFocusGainedEvent(focusEvent);
-    gcn::FocusHandler::distributeFocusGainedEvent(focusEvent);
+
+    gcn::Widget *const sourceWidget = focusEvent.getSource();
+
+    std::list<FocusListener*> focusListeners
+        = sourceWidget->_getFocusListeners();
+
+    // Send the event to all focus listeners of the widget.
+    for (std::list<FocusListener*>::const_iterator
+          it = focusListeners.begin();
+          it != focusListeners.end();
+          ++ it)
+    {
+        (*it)->focusGained(focusEvent);
+    }
+}
+
+void FocusHandler::requestFocus(gcn::Widget* widget)
+{
+    if (!widget || widget == mFocusedWidget)
+        return;
+
+    int toBeFocusedIndex = -1;
+    for (unsigned int i = 0, sz = static_cast<unsigned int>(
+          mWidgets.size()); i < sz; ++i)
+    {
+        if (mWidgets[i] == widget)
+        {
+            toBeFocusedIndex = i;
+            break;
+        }
+    }
+
+    if (toBeFocusedIndex < 0)
+        return;
+
+    gcn::Widget *const oldFocused = mFocusedWidget;
+
+    if (oldFocused != widget)
+    {
+        mFocusedWidget = mWidgets.at(toBeFocusedIndex);
+
+        if (oldFocused)
+        {
+            Event focusEvent(oldFocused);
+            distributeFocusLostEvent(focusEvent);
+        }
+
+        Event focusEvent(mWidgets.at(toBeFocusedIndex));
+        distributeFocusGainedEvent(focusEvent);
+    }
+}
+
+void FocusHandler::requestModalMouseInputFocus(gcn::Widget* widget)
+{
+    if (mModalMouseInputFocusedWidget
+        && mModalMouseInputFocusedWidget != widget)
+    {
+        return;
+    }
+
+    mModalMouseInputFocusedWidget = widget;
+}
+
+void FocusHandler::releaseModalMouseInputFocus(gcn::Widget* widget)
+{
+    if (mModalMouseInputFocusedWidget == widget)
+        mModalMouseInputFocusedWidget = nullptr;
+}
+
+gcn::Widget* FocusHandler::getFocused() const
+{
+    return mFocusedWidget;
+}
+
+gcn::Widget* FocusHandler::getModalFocused() const
+{
+    return mModalFocusedWidget;
+}
+
+gcn::Widget* FocusHandler::getModalMouseInputFocused() const
+{
+    return mModalMouseInputFocusedWidget;
+}
+
+void FocusHandler::focusNext()
+{
+    int i;
+    int focusedWidget = -1;
+    const int sz = static_cast<int>(mWidgets.size());
+    for (i = 0; i < sz; ++i)
+    {
+        if (mWidgets[i] == mFocusedWidget)
+            focusedWidget = i;
+    }
+    const int focused = focusedWidget;
+
+    // i is a counter that ensures that the following loop
+    // won't get stuck in an infinite loop
+    i = sz;
+    do
+    {
+        ++ focusedWidget;
+
+        if (i == 0)
+        {
+            focusedWidget = -1;
+            break;
+        }
+
+        -- i;
+
+        if (focusedWidget >= sz)
+            focusedWidget = 0;
+
+        if (focusedWidget == focused)
+            return;
+    }
+    while (!mWidgets.at(focusedWidget)->isFocusable());
+
+    if (focusedWidget >= 0)
+    {
+        mFocusedWidget = mWidgets.at(focusedWidget);
+
+        Event focusEvent(mFocusedWidget);
+        distributeFocusGainedEvent(focusEvent);
+    }
+
+    if (focused >= 0)
+    {
+        Event focusEvent(mWidgets.at(focused));
+        distributeFocusLostEvent(focusEvent);
+    }
+}
+
+void FocusHandler::focusPrevious()
+{
+    if (mWidgets.empty())
+    {
+        mFocusedWidget = nullptr;
+        return;
+    }
+
+    int i;
+    int focusedWidget = -1;
+    const int sz = static_cast<int>(mWidgets.size());
+    for (i = 0; i < sz; ++ i)
+    {
+        if (mWidgets[i] == mFocusedWidget)
+            focusedWidget = i;
+    }
+    const int focused = focusedWidget;
+
+    // i is a counter that ensures that the following loop
+    // won't get stuck in an infinite loop
+    i = sz;
+    do
+    {
+        -- focusedWidget;
+
+        if (i == 0)
+        {
+            focusedWidget = -1;
+            break;
+        }
+
+        -- i;
+
+        if (focusedWidget <= 0)
+            focusedWidget = sz - 1;
+
+        if (focusedWidget == focused)
+            return;
+    }
+    while (!mWidgets.at(focusedWidget)->isFocusable());
+
+    if (focusedWidget >= 0)
+    {
+        mFocusedWidget = mWidgets.at(focusedWidget);
+        Event focusEvent(mFocusedWidget);
+        distributeFocusGainedEvent(focusEvent);
+    }
+
+    if (focused >= 0)
+    {
+        Event focusEvent(mWidgets.at(focused));
+        distributeFocusLostEvent(focusEvent);
+    }
+}
+
+bool FocusHandler::isFocused(const gcn::Widget* widget) const
+{
+    return mFocusedWidget == widget;
+}
+
+void FocusHandler::add(gcn::Widget* widget)
+{
+    mWidgets.push_back(widget);
+}
+
+void FocusHandler::focusNone()
+{
+    if (mFocusedWidget)
+    {
+        gcn::Widget *const focused = mFocusedWidget;
+        mFocusedWidget = nullptr;
+
+        Event focusEvent(focused);
+        distributeFocusLostEvent(focusEvent);
+    }
+}
+
+void FocusHandler::distributeFocusLostEvent(const Event& focusEvent)
+{
+    gcn::Widget *const sourceWidget = focusEvent.getSource();
+
+    std::list<FocusListener*> focusListeners
+        = sourceWidget->_getFocusListeners();
+
+    // Send the event to all focus listeners of the widget.
+    for (std::list<FocusListener*>::const_iterator
+          it = focusListeners.begin();
+          it != focusListeners.end();
+          ++ it)
+    {
+        (*it)->focusLost(focusEvent);
+    }
+}
+
+gcn::Widget* FocusHandler::getDraggedWidget()
+{
+    return mDraggedWidget;
+}
+
+void FocusHandler::setDraggedWidget(gcn::Widget* draggedWidget)
+{
+    mDraggedWidget = draggedWidget;
+}
+
+gcn::Widget* FocusHandler::getLastWidgetWithMouse()
+{
+    return mLastWidgetWithMouse;
+}
+
+void FocusHandler::setLastWidgetWithMouse(gcn::Widget* lastWidgetWithMouse)
+{
+    mLastWidgetWithMouse = lastWidgetWithMouse;
+}
+
+gcn::Widget* FocusHandler::getLastWidgetWithModalFocus()
+{
+    return mLastWidgetWithModalFocus;
+}
+
+void FocusHandler::setLastWidgetWithModalFocus(gcn::Widget* widget)
+{
+    mLastWidgetWithModalFocus = widget;
+}
+
+gcn::Widget* FocusHandler::getLastWidgetWithModalMouseInputFocus()
+{
+    return mLastWidgetWithModalMouseInputFocus;
+}
+
+void FocusHandler::setLastWidgetWithModalMouseInputFocus(gcn::Widget* widget)
+{
+    mLastWidgetWithModalMouseInputFocus = widget;
+}
+
+gcn::Widget* FocusHandler::getLastWidgetPressed()
+{
+    return mLastWidgetPressed;
+}
+
+void FocusHandler::setLastWidgetPressed(gcn::Widget* lastWidgetPressed)
+{
+    mLastWidgetPressed = lastWidgetPressed;
 }