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Move touchscreen input handling to base GUIModalMenu class
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stujones11
sfan5
parent
0d54399be2
commit
323c860045
14 changed files with 425 additions and 272 deletions
283
src/gui/modalMenu.cpp
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283
src/gui/modalMenu.cpp
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/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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Copyright (C) 2018 stujones11, Stuart Jones <stujones111@gmail.com>
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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 Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <cstdlib>
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#include "modalMenu.h"
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#include "gettext.h"
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#include "porting.h"
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#ifdef HAVE_TOUCHSCREENGUI
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#include "touchscreengui.h"
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#endif
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// clang-format off
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GUIModalMenu::GUIModalMenu(gui::IGUIEnvironment* env, gui::IGUIElement* parent, s32 id,
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IMenuManager *menumgr) :
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IGUIElement(gui::EGUIET_ELEMENT, env, parent, id,
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core::rect<s32>(0, 0, 100, 100)),
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#ifdef __ANDROID__
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m_jni_field_name(""),
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#endif
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m_menumgr(menumgr)
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{
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setVisible(true);
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Environment->setFocus(this);
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m_menumgr->createdMenu(this);
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}
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// clang-format on
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GUIModalMenu::~GUIModalMenu()
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{
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m_menumgr->deletingMenu(this);
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}
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void GUIModalMenu::allowFocusRemoval(bool allow)
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{
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m_allow_focus_removal = allow;
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}
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bool GUIModalMenu::canTakeFocus(gui::IGUIElement *e)
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{
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return (e && (e == this || isMyChild(e))) || m_allow_focus_removal;
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}
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void GUIModalMenu::draw()
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{
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if (!IsVisible)
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return;
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video::IVideoDriver *driver = Environment->getVideoDriver();
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v2u32 screensize = driver->getScreenSize();
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if (screensize != m_screensize_old) {
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m_screensize_old = screensize;
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regenerateGui(screensize);
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}
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drawMenu();
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}
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/*
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This should be called when the menu wants to quit.
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WARNING: THIS DEALLOCATES THE MENU FROM MEMORY. Return
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immediately if you call this from the menu itself.
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(More precisely, this decrements the reference count.)
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*/
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void GUIModalMenu::quitMenu()
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{
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allowFocusRemoval(true);
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// This removes Environment's grab on us
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Environment->removeFocus(this);
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m_menumgr->deletingMenu(this);
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this->remove();
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#ifdef HAVE_TOUCHSCREENGUI
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if (g_touchscreengui && m_touchscreen_visible)
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g_touchscreengui->show();
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#endif
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}
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void GUIModalMenu::removeChildren()
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{
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const core::list<gui::IGUIElement *> &children = getChildren();
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core::list<gui::IGUIElement *> children_copy;
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for (gui::IGUIElement *i : children) {
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children_copy.push_back(i);
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}
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for (gui::IGUIElement *i : children_copy) {
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i->remove();
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}
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}
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bool GUIModalMenu::preprocessEvent(const SEvent &event)
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{
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#ifdef __ANDROID__
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// clang-format off
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// display software keyboard when clicking edit boxes
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if (event.EventType == EET_MOUSE_INPUT_EVENT &&
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event.MouseInput.Event == EMIE_LMOUSE_PRESSED_DOWN) {
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gui::IGUIElement *hovered =
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Environment->getRootGUIElement()->getElementFromPoint(
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core::position2d<s32>(event.MouseInput.X, event.MouseInput.Y));
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if ((hovered) && (hovered->getType() == irr::gui::EGUIET_EDIT_BOX)) {
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bool retval = hovered->OnEvent(event);
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if (retval)
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Environment->setFocus(hovered);
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std::string field_name = getNameByID(hovered->getID());
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// read-only field
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if (field_name.empty())
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return retval;
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m_jni_field_name = field_name;
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std::string message = gettext("Enter ");
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std::string label = wide_to_utf8(getLabelByID(hovered->getID()));
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if (label.empty())
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label = "text";
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message += gettext(label) + ":";
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// single line text input
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int type = 2;
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// multi line text input
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if (((gui::IGUIEditBox *)hovered)->isMultiLineEnabled())
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type = 1;
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// passwords are always single line
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if (((gui::IGUIEditBox *)hovered)->isPasswordBox())
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type = 3;
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porting::showInputDialog(gettext("ok"), "",
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wide_to_utf8(((gui::IGUIEditBox *)hovered)->getText()), type);
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return retval;
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}
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}
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if (event.EventType == EET_TOUCH_INPUT_EVENT) {
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SEvent translated;
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memset(&translated, 0, sizeof(SEvent));
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translated.EventType = EET_MOUSE_INPUT_EVENT;
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gui::IGUIElement *root = Environment->getRootGUIElement();
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if (!root) {
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errorstream << "GUIModalMenu::preprocessEvent"
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<< " unable to get root element" << std::endl;
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return false;
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}
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gui::IGUIElement *hovered = root->getElementFromPoint(
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core::position2d<s32>(event.TouchInput.X, event.TouchInput.Y));
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translated.MouseInput.X = event.TouchInput.X;
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translated.MouseInput.Y = event.TouchInput.Y;
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translated.MouseInput.Control = false;
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bool dont_send_event = false;
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if (event.TouchInput.touchedCount == 1) {
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switch (event.TouchInput.Event) {
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case ETIE_PRESSED_DOWN:
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m_pointer = v2s32(event.TouchInput.X, event.TouchInput.Y);
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translated.MouseInput.Event = EMIE_LMOUSE_PRESSED_DOWN;
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translated.MouseInput.ButtonStates = EMBSM_LEFT;
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m_down_pos = m_pointer;
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break;
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case ETIE_MOVED:
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m_pointer = v2s32(event.TouchInput.X, event.TouchInput.Y);
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translated.MouseInput.Event = EMIE_MOUSE_MOVED;
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translated.MouseInput.ButtonStates = EMBSM_LEFT;
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break;
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case ETIE_LEFT_UP:
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translated.MouseInput.Event = EMIE_LMOUSE_LEFT_UP;
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translated.MouseInput.ButtonStates = 0;
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hovered = root->getElementFromPoint(m_down_pos);
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// we don't have a valid pointer element use last
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// known pointer pos
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translated.MouseInput.X = m_pointer.X;
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translated.MouseInput.Y = m_pointer.Y;
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// reset down pos
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m_down_pos = v2s32(0, 0);
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break;
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default:
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dont_send_event = true;
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// this is not supposed to happen
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errorstream << "GUIModalMenu::preprocessEvent"
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<< " unexpected usecase Event="
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<< event.TouchInput.Event << std::endl;
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}
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} else if ((event.TouchInput.touchedCount == 2) &&
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(event.TouchInput.Event == ETIE_PRESSED_DOWN)) {
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hovered = root->getElementFromPoint(m_down_pos);
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translated.MouseInput.Event = EMIE_RMOUSE_PRESSED_DOWN;
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translated.MouseInput.ButtonStates = EMBSM_LEFT | EMBSM_RIGHT;
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translated.MouseInput.X = m_pointer.X;
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translated.MouseInput.Y = m_pointer.Y;
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if (hovered) {
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hovered->OnEvent(translated);
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}
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translated.MouseInput.Event = EMIE_RMOUSE_LEFT_UP;
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translated.MouseInput.ButtonStates = EMBSM_LEFT;
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if (hovered) {
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hovered->OnEvent(translated);
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}
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dont_send_event = true;
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}
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// ignore unhandled 2 touch events ... accidental moving for example
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else if (event.TouchInput.touchedCount == 2) {
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dont_send_event = true;
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}
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else if (event.TouchInput.touchedCount > 2) {
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errorstream << "GUIModalMenu::preprocessEvent"
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<< " to many multitouch events "
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<< event.TouchInput.touchedCount << " ignoring them"
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<< std::endl;
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}
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if (dont_send_event) {
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return true;
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}
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// check if translated event needs to be preprocessed again
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if (preprocessEvent(translated)) {
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return true;
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}
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if (hovered) {
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grab();
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bool retval = hovered->OnEvent(translated);
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if (event.TouchInput.Event == ETIE_LEFT_UP) {
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// reset pointer
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m_pointer = v2s32(0, 0);
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}
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drop();
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return retval;
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}
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}
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// clang-format on
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#endif
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return false;
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}
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#ifdef __ANDROID__
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bool GUIModalMenu::hasAndroidUIInput()
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{
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// no dialog shown
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if (m_jni_field_name.empty()) {
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return false;
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}
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// still waiting
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if (porting::getInputDialogState() == -1) {
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return true;
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}
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// no value abort dialog processing
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if (porting::getInputDialogState() != 0) {
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m_jni_field_name.clear();
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return false;
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}
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return true;
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}
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#endif
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