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/* |
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* The ManaPlus Client |
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* Copyright (C) 2004-2009 The Mana World Development Team |
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* Copyright (C) 2009-2010 The Mana Developers |
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* Copyright (C) 2011-2019 The ManaPlus Developers |
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* Copyright (C) 2019-2021 Andrei Karas |
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* |
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* This file is part of The ManaPlus Client. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/* _______ __ __ __ ______ __ __ _______ __ __ |
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* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ |
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* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / |
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* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / |
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* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / |
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* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / |
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* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ |
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* |
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* Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson |
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* |
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* |
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* Per Larsson a.k.a finalman |
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* Olof Naessén a.k.a jansem/yakslem |
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* |
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* Visit: http://guichan.sourceforge.net |
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* |
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* License: (BSD) |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* 3. Neither the name of Guichan nor the names of its contributors may |
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* be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#include "gui/focushandler.h" |
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#include "gui/gui.h" |
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#include "gui/widgets/window.h" |
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#include "listeners/focuslistener.h" |
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#include "utils/foreach.h" |
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#include "debug.h" |
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FocusHandler::FocusHandler() : |
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mWidgets(), |
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mFocusedWidget(nullptr), |
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mModalFocusedWidget(nullptr), |
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mModalMouseInputFocusedWidget(nullptr), |
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mDraggedWidget(nullptr), |
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mLastWidgetWithMouse(nullptr), |
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mLastWidgetWithModalFocus(nullptr), |
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mLastWidgetWithModalMouseInputFocus(nullptr), |
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mLastWidgetPressed(nullptr), |
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mModalStack() |
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{ |
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|
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} |
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void FocusHandler::requestModalFocus(Widget *const widget) |
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{ |
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/* If there is another widget with modal focus, remove its modal focus |
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* and put it on the modal widget stack. |
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*/ |
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✓✓✗✓
|
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if ((mModalFocusedWidget != nullptr) && mModalFocusedWidget != widget) |
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{ |
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mModalStack.push_front(mModalFocusedWidget); |
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mModalFocusedWidget = nullptr; |
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} |
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mModalFocusedWidget = widget; |
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✓✓✗✓
✓✓ |
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if ((mFocusedWidget != nullptr) && !mFocusedWidget->isModalFocused()) |
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focusNone(); |
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} |
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void FocusHandler::releaseModalFocus(Widget *const widget) |
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{ |
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mModalStack.remove(widget); |
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✓✓ |
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if (mModalFocusedWidget == widget) |
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{ |
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mModalFocusedWidget = nullptr; |
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/* Check if there were any previously modal widgets that'd still like |
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* to regain their modal focus. |
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*/ |
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✗✓ |
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if (!mModalStack.empty()) |
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{ |
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requestModalFocus(mModalStack.front()); |
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mModalStack.pop_front(); |
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} |
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} |
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} |
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void FocusHandler::remove(Widget *const widget) |
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{ |
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releaseModalFocus(widget); |
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✓✓ |
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if (isFocused(widget)) |
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mFocusedWidget = nullptr; |
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✓✗ |
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FOR_EACH (WidgetIterator, iter, mWidgets) |
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{ |
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✓✓ |
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if ((*iter) == widget) |
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{ |
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mWidgets.erase(iter); |
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break; |
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} |
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} |
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✗✓ |
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if (mDraggedWidget == widget) |
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{ |
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mDraggedWidget = nullptr; |
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return; |
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} |
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✗✓ |
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if (mLastWidgetWithMouse == widget) |
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{ |
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mLastWidgetWithMouse = nullptr; |
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return; |
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} |
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✗✓ |
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if (mLastWidgetWithModalFocus == widget) |
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{ |
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mLastWidgetWithModalFocus = nullptr; |
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return; |
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} |
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✗✓ |
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if (mLastWidgetWithModalMouseInputFocus == widget) |
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{ |
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mLastWidgetWithModalMouseInputFocus = nullptr; |
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return; |
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} |
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✗✓ |
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if (mLastWidgetPressed == widget) |
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{ |
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mLastWidgetPressed = nullptr; |
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return; |
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} |
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} |
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void FocusHandler::tabNext() |
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{ |
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if (mFocusedWidget != nullptr) |
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{ |
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if (!mFocusedWidget->isTabOutEnabled()) |
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return; |
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} |
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if (mWidgets.empty()) |
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{ |
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mFocusedWidget = nullptr; |
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return; |
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} |
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int i; |
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int focusedWidget = -1; |
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const int sz = CAST_S32(mWidgets.size()); |
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for (i = 0; i < sz; ++ i) |
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{ |
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if (mWidgets[i] == mFocusedWidget) |
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focusedWidget = i; |
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} |
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const int focused = focusedWidget; |
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bool done = false; |
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// i is a counter that ensures that the following loop |
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// won't get stuck in an infinite loop |
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i = sz; |
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do |
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{ |
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++ focusedWidget; |
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if (i == 0) |
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{ |
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focusedWidget = -1; |
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break; |
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} |
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-- i; |
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if (focusedWidget >= sz) |
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focusedWidget = 0; |
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if (focusedWidget == focused) |
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return; |
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const Widget *const widget = mWidgets.at(focusedWidget); |
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if (widget->isFocusable() && widget->isTabInEnabled() && |
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((mModalFocusedWidget == nullptr) || widget->isModalFocused())) |
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{ |
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done = true; |
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} |
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} |
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while (!done); |
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if (focusedWidget >= 0) |
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{ |
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mFocusedWidget = mWidgets.at(focusedWidget); |
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Event focusEvent(mFocusedWidget); |
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distributeFocusGainedEvent(focusEvent); |
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} |
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if (focused >= 0) |
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{ |
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Event focusEvent(mWidgets.at(focused)); |
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distributeFocusLostEvent(focusEvent); |
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} |
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checkForWindow(); |
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} |
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void FocusHandler::tabPrevious() |
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{ |
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if (mFocusedWidget != nullptr) |
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{ |
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if (!mFocusedWidget->isTabOutEnabled()) |
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return; |
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} |
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if (mWidgets.empty()) |
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{ |
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mFocusedWidget = nullptr; |
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return; |
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} |
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int i; |
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int focusedWidget = -1; |
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const int sz = CAST_S32(mWidgets.size()); |
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for (i = 0; i < sz; ++ i) |
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{ |
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if (mWidgets[i] == mFocusedWidget) |
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focusedWidget = i; |
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} |
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const int focused = focusedWidget; |
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bool done = false; |
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// i is a counter that ensures that the following loop |
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// won't get stuck in an infinite loop |
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i = sz; |
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do |
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{ |
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-- focusedWidget; |
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if (i == 0) |
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{ |
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focusedWidget = -1; |
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break; |
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} |
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-- i; |
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if (focusedWidget <= 0) |
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focusedWidget = sz - 1; |
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if (focusedWidget == focused) |
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return; |
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const Widget *const widget = mWidgets.at(focusedWidget); |
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if (widget->isFocusable() && widget->isTabInEnabled() && |
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((mModalFocusedWidget == nullptr) || widget->isModalFocused())) |
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{ |
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done = true; |
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} |
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} |
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while (!done); |
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if (focusedWidget >= 0) |
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{ |
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mFocusedWidget = mWidgets.at(focusedWidget); |
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Event focusEvent(mFocusedWidget); |
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distributeFocusGainedEvent(focusEvent); |
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} |
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if (focused >= 0) |
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{ |
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Event focusEvent(mWidgets.at(focused)); |
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distributeFocusLostEvent(focusEvent); |
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} |
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checkForWindow(); |
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} |
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void FocusHandler::checkForWindow() const |
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{ |
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if (mFocusedWidget != nullptr) |
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{ |
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Widget *widget = mFocusedWidget->getParent(); |
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while (widget != nullptr) |
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{ |
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Window *const window = dynamic_cast<Window*>(widget); |
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|
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if (window != nullptr) |
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{ |
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window->requestMoveToTop(); |
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break; |
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} |
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|
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widget = widget->getParent(); |
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} |
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} |
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} |
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void FocusHandler::distributeFocusGainedEvent(const Event &focusEvent) |
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{ |
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✓✗ |
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if (gui != nullptr) |
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|
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gui->distributeGlobalFocusGainedEvent(focusEvent); |
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|
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|
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const Widget *const sourceWidget = focusEvent.getSource(); |
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|
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✓✗ |
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if (sourceWidget == nullptr) |
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return; |
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std::list<FocusListener*> focusListeners |
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|
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= sourceWidget->getFocusListeners(); |
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|
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// Send the event to all focus listeners of the widget. |
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✓✓ |
37 |
for (std::list<FocusListener*>::const_iterator |
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|
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it = focusListeners.begin(); |
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|
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it != focusListeners.end(); |
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++ it) |
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{ |
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✓✗ |
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(*it)->focusGained(focusEvent); |
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} |
358 |
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} |
359 |
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|
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|
24 |
void FocusHandler::requestFocus(const Widget *const widget) |
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{ |
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✓✗✓✗
|
24 |
if ((widget == nullptr) || widget == mFocusedWidget) |
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return; |
364 |
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|
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|
24 |
int toBeFocusedIndex = -1; |
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|
142 |
for (unsigned int i = 0, fsz = CAST_U32( |
367 |
✓✗ |
48 |
mWidgets.size()); i < fsz; ++i) |
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{ |
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✓✓ |
284 |
if (mWidgets[i] == widget) |
370 |
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{ |
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|
24 |
toBeFocusedIndex = i; |
372 |
|
24 |
break; |
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} |
374 |
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} |
375 |
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|
376 |
✓✗ |
24 |
if (toBeFocusedIndex < 0) |
377 |
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return; |
378 |
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|
379 |
|
24 |
Widget *const oldFocused = mFocusedWidget; |
380 |
|
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|
381 |
|
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if (oldFocused != widget) |
382 |
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{ |
383 |
|
48 |
mFocusedWidget = mWidgets.at(toBeFocusedIndex); |
384 |
|
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|
385 |
|
72 |
Event focusEvent(mFocusedWidget); |
386 |
|
24 |
distributeFocusGainedEvent(focusEvent); |
387 |
|
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|
388 |
✗✓ |
24 |
if (oldFocused != nullptr) |
389 |
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{ |
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Event oldFocusEvent(oldFocused); |
391 |
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distributeFocusLostEvent(oldFocusEvent); |
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} |
393 |
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} |
394 |
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} |
395 |
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|
396 |
|
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void FocusHandler::requestModalMouseInputFocus(Widget *const widget) |
397 |
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{ |
398 |
|
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if ((mModalMouseInputFocusedWidget != nullptr) |
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&& mModalMouseInputFocusedWidget != widget) |
400 |
|
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{ |
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|
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return; |
402 |
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} |
403 |
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|
404 |
|
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mModalMouseInputFocusedWidget = widget; |
405 |
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} |
406 |
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|
407 |
|
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void FocusHandler::releaseModalMouseInputFocus(const Widget *const widget) |
408 |
|
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{ |
409 |
|
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if (mModalMouseInputFocusedWidget == widget) |
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|
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mModalMouseInputFocusedWidget = nullptr; |
411 |
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} |
412 |
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|
413 |
|
|
Widget* FocusHandler::getFocused() const |
414 |
|
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{ |
415 |
|
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return mFocusedWidget; |
416 |
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} |
417 |
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|
418 |
|
3 |
Widget* FocusHandler::getModalFocused() const |
419 |
|
|
{ |
420 |
|
3 |
return mModalFocusedWidget; |
421 |
|
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} |
422 |
|
|
|
423 |
|
|
Widget* FocusHandler::getModalMouseInputFocused() const |
424 |
|
|
{ |
425 |
|
|
return mModalMouseInputFocusedWidget; |
426 |
|
|
} |
427 |
|
|
|
428 |
|
|
void FocusHandler::focusNext() |
429 |
|
|
{ |
430 |
|
|
int i; |
431 |
|
|
int focusedWidget = -1; |
432 |
|
|
const int sz = CAST_S32(mWidgets.size()); |
433 |
|
|
for (i = 0; i < sz; ++i) |
434 |
|
|
{ |
435 |
|
|
if (mWidgets[i] == mFocusedWidget) |
436 |
|
|
focusedWidget = i; |
437 |
|
|
} |
438 |
|
|
const int focused = focusedWidget; |
439 |
|
|
|
440 |
|
|
// i is a counter that ensures that the following loop |
441 |
|
|
// won't get stuck in an infinite loop |
442 |
|
|
i = sz; |
443 |
|
|
do |
444 |
|
|
{ |
445 |
|
|
++ focusedWidget; |
446 |
|
|
|
447 |
|
|
if (i == 0) |
448 |
|
|
{ |
449 |
|
|
focusedWidget = -1; |
450 |
|
|
break; |
451 |
|
|
} |
452 |
|
|
|
453 |
|
|
-- i; |
454 |
|
|
|
455 |
|
|
if (focusedWidget >= sz) |
456 |
|
|
focusedWidget = 0; |
457 |
|
|
|
458 |
|
|
if (focusedWidget == focused) |
459 |
|
|
return; |
460 |
|
|
} |
461 |
|
|
while (!mWidgets.at(focusedWidget)->isFocusable()); |
462 |
|
|
|
463 |
|
|
if (focusedWidget >= 0) |
464 |
|
|
{ |
465 |
|
|
mFocusedWidget = mWidgets.at(focusedWidget); |
466 |
|
|
|
467 |
|
|
Event focusEvent(mFocusedWidget); |
468 |
|
|
distributeFocusGainedEvent(focusEvent); |
469 |
|
|
} |
470 |
|
|
|
471 |
|
|
if (focused >= 0) |
472 |
|
|
{ |
473 |
|
|
Event focusEvent(mWidgets.at(focused)); |
474 |
|
|
distributeFocusLostEvent(focusEvent); |
475 |
|
|
} |
476 |
|
|
} |
477 |
|
|
|
478 |
|
|
void FocusHandler::focusPrevious() |
479 |
|
|
{ |
480 |
|
|
if (mWidgets.empty()) |
481 |
|
|
{ |
482 |
|
|
mFocusedWidget = nullptr; |
483 |
|
|
return; |
484 |
|
|
} |
485 |
|
|
|
486 |
|
|
int i; |
487 |
|
|
int focusedWidget = -1; |
488 |
|
|
const int sz = CAST_S32(mWidgets.size()); |
489 |
|
|
for (i = 0; i < sz; ++ i) |
490 |
|
|
{ |
491 |
|
|
if (mWidgets[i] == mFocusedWidget) |
492 |
|
|
focusedWidget = i; |
493 |
|
|
} |
494 |
|
|
const int focused = focusedWidget; |
495 |
|
|
|
496 |
|
|
// i is a counter that ensures that the following loop |
497 |
|
|
// won't get stuck in an infinite loop |
498 |
|
|
i = sz; |
499 |
|
|
do |
500 |
|
|
{ |
501 |
|
|
-- focusedWidget; |
502 |
|
|
|
503 |
|
|
if (i == 0) |
504 |
|
|
{ |
505 |
|
|
focusedWidget = -1; |
506 |
|
|
break; |
507 |
|
|
} |
508 |
|
|
|
509 |
|
|
-- i; |
510 |
|
|
|
511 |
|
|
if (focusedWidget <= 0) |
512 |
|
|
focusedWidget = sz - 1; |
513 |
|
|
|
514 |
|
|
if (focusedWidget == focused) |
515 |
|
|
return; |
516 |
|
|
} |
517 |
|
|
while (!mWidgets.at(focusedWidget)->isFocusable()); |
518 |
|
|
|
519 |
|
|
if (focusedWidget >= 0) |
520 |
|
|
{ |
521 |
|
|
mFocusedWidget = mWidgets.at(focusedWidget); |
522 |
|
|
Event focusEvent(mFocusedWidget); |
523 |
|
|
distributeFocusGainedEvent(focusEvent); |
524 |
|
|
} |
525 |
|
|
|
526 |
|
|
if (focused >= 0) |
527 |
|
|
{ |
528 |
|
|
Event focusEvent(mWidgets.at(focused)); |
529 |
|
|
distributeFocusLostEvent(focusEvent); |
530 |
|
|
} |
531 |
|
|
} |
532 |
|
|
|
533 |
|
239 |
bool FocusHandler::isFocused(const Widget *const widget) const |
534 |
|
|
{ |
535 |
|
1485 |
return mFocusedWidget == widget; |
536 |
|
|
} |
537 |
|
|
|
538 |
|
1246 |
void FocusHandler::add(Widget *const widget) |
539 |
|
|
{ |
540 |
|
1246 |
mWidgets.push_back(widget); |
541 |
|
1246 |
} |
542 |
|
|
|
543 |
|
|
void FocusHandler::focusNone() |
544 |
|
|
{ |
545 |
✗✗✓✗
|
1 |
if (mFocusedWidget != nullptr) |
546 |
|
|
{ |
547 |
|
1 |
Widget *const focused = mFocusedWidget; |
548 |
|
1 |
mFocusedWidget = nullptr; |
549 |
|
|
|
550 |
|
2 |
Event focusEvent(focused); |
551 |
|
1 |
distributeFocusLostEvent(focusEvent); |
552 |
|
|
} |
553 |
|
|
} |
554 |
|
|
|
555 |
|
1 |
void FocusHandler::distributeFocusLostEvent(const Event& focusEvent) |
556 |
|
|
{ |
557 |
|
1 |
const Widget *const sourceWidget = focusEvent.getSource(); |
558 |
✓✗ |
1 |
if (sourceWidget == nullptr) |
559 |
|
|
return; |
560 |
|
|
|
561 |
|
|
std::list<FocusListener*> focusListeners |
562 |
|
2 |
= sourceWidget->getFocusListeners(); |
563 |
|
|
|
564 |
|
|
// Send the event to all focus listeners of the widget. |
565 |
✓✓ |
2 |
for (std::list<FocusListener*>::const_iterator |
566 |
|
3 |
it = focusListeners.begin(); |
567 |
|
2 |
it != focusListeners.end(); |
568 |
|
|
++ it) |
569 |
|
|
{ |
570 |
✓✗ |
1 |
(*it)->focusLost(focusEvent); |
571 |
|
|
} |
572 |
|
|
} |
573 |
|
|
|
574 |
|
2487 |
Widget* FocusHandler::getDraggedWidget() const |
575 |
|
|
{ |
576 |
|
2487 |
return mDraggedWidget; |
577 |
|
|
} |
578 |
|
|
|
579 |
|
|
void FocusHandler::setDraggedWidget(Widget *const draggedWidget) |
580 |
|
|
{ |
581 |
|
|
mDraggedWidget = draggedWidget; |
582 |
|
|
} |
583 |
|
|
|
584 |
|
|
Widget* FocusHandler::getLastWidgetWithMouse() const |
585 |
|
|
{ |
586 |
|
|
return mLastWidgetWithMouse; |
587 |
|
|
} |
588 |
|
|
|
589 |
|
|
void FocusHandler::setLastWidgetWithMouse(Widget *const lastWidgetWithMouse) |
590 |
|
|
{ |
591 |
|
|
mLastWidgetWithMouse = lastWidgetWithMouse; |
592 |
|
|
} |
593 |
|
|
|
594 |
|
|
Widget* FocusHandler::getLastWidgetWithModalFocus() const |
595 |
|
|
{ |
596 |
|
|
return mLastWidgetWithModalFocus; |
597 |
|
|
} |
598 |
|
|
|
599 |
|
|
void FocusHandler::setLastWidgetWithModalFocus(Widget *const widget) |
600 |
|
|
{ |
601 |
|
|
mLastWidgetWithModalFocus = widget; |
602 |
|
|
} |
603 |
|
|
|
604 |
|
|
Widget* FocusHandler::getLastWidgetWithModalMouseInputFocus() const |
605 |
|
|
{ |
606 |
|
|
return mLastWidgetWithModalMouseInputFocus; |
607 |
|
|
} |
608 |
|
|
|
609 |
|
|
void FocusHandler::setLastWidgetWithModalMouseInputFocus(Widget *const widget) |
610 |
|
|
{ |
611 |
|
|
mLastWidgetWithModalMouseInputFocus = widget; |
612 |
|
|
} |
613 |
|
|
|
614 |
|
|
Widget* FocusHandler::getLastWidgetPressed() const |
615 |
|
|
{ |
616 |
|
|
return mLastWidgetPressed; |
617 |
|
|
} |
618 |
|
|
|
619 |
|
|
void FocusHandler::setLastWidgetPressed(Widget *const lastWidgetPressed) |
620 |
|
|
{ |
621 |
|
|
mLastWidgetPressed = lastWidgetPressed; |
622 |
|
|
} |