GUIDropDownController.cpp

Go to the documentation of this file.

#include <tdme/gui/elements/GUIDropDownController.h>
 
#include <string>
 
#include <tdme/tdme.h>
#include <tdme/gui/elements/GUIDropDownOptionController.h>
#include <tdme/gui/events/GUIKeyboardEvent.h>
#include <tdme/gui/events/GUIMouseEvent.h>
#include <tdme/gui/nodes/GUIElementController.h>
#include <tdme/gui/nodes/GUIElementNode.h>
#include <tdme/gui/nodes/GUINode.h>
#include <tdme/gui/nodes/GUINodeConditions.h>
#include <tdme/gui/nodes/GUIParentNode.h>
#include <tdme/gui/nodes/GUIScreenNode.h>
#include <tdme/gui/nodes/GUITextNode.h>
#include <tdme/gui/GUI.h>
#include <tdme/utilities/MutableString.h>
#include <tdme/utilities/StringTools.h>
 
using std::string;
using std::to_string;
 
using tdme::gui::elements::GUIDropDownController;
using tdme::gui::elements::GUIDropDownOptionController;
using tdme::gui::events::GUIKeyboardEvent;
using tdme::gui::events::GUIMouseEvent;
using tdme::gui::nodes::GUIElementController;
using tdme::gui::nodes::GUIElementNode;
using tdme::gui::nodes::GUINode;
using tdme::gui::nodes::GUINodeConditions;
using tdme::gui::nodes::GUIParentNode;
using tdme::gui::nodes::GUIScreenNode;
using tdme::gui::nodes::GUITextNode;
using tdme::gui::GUI;
using tdme::utilities::MutableString;
using tdme::utilities::StringTools;
 
string GUIDropDownController::CONDITION_DISABLED = "disabled";
string GUIDropDownController::CONDITION_ENABLED = "enabled";
string GUIDropDownController::CONDITION_OPENED = "opened";
string GUIDropDownController::CONDITION_CLOSED = "closed";
 
GUIDropDownController::GUIDropDownController(GUINode* node)
    : GUIElementController(node)
{
    open = false;
    this->disabled = required_dynamic_cast<GUIElementNode*>(node)->isDisabled();
}
 
bool GUIDropDownController::isDisabled()
{
    return disabled;
}
 
void GUIDropDownController::setDisabled(bool disabled)
{
    auto& nodeConditions = required_dynamic_cast<GUIElementNode*>(node)->getActiveConditions();
    auto& nodeConditionsTextElement = textElementNode->getActiveConditions();
    nodeConditions.remove(this->disabled == true?CONDITION_DISABLED:CONDITION_ENABLED);
    nodeConditionsTextElement.remove(this->disabled == true?CONDITION_DISABLED:CONDITION_ENABLED);
    this->disabled = disabled;
    nodeConditions.add(this->disabled == true?CONDITION_DISABLED:CONDITION_ENABLED);
    nodeConditionsTextElement.add(this->disabled == true ?CONDITION_DISABLED:CONDITION_ENABLED);
    if (disabled == true && isOpen() == true) {
        toggleOpenState();
    }
}
 
void GUIDropDownController::initialize()
{
    dropDownContainerNode = required_dynamic_cast<GUIParentNode*>(node->getScreenNode()->getInnerNodeById(node->getId()));
    arrowNode = required_dynamic_cast<GUIElementNode*>(node->getScreenNode()->getNodeById(node->getId() + "_arrow"));
    textElementNode = required_dynamic_cast<GUIElementNode*>(node->getScreenNode()->getNodeById(node->getId() + "_layout_horizontal_element"));
    required_dynamic_cast<GUIElementNode*>(node)->getActiveConditions().add(open == true?CONDITION_OPENED:CONDITION_CLOSED);
    arrowNode->getActiveConditions().add(open == true?CONDITION_OPENED:CONDITION_CLOSED);
 
    //
    GUIElementController::initialize();
 
    //
    determineDropDownOptionControllers();
}
 
void GUIDropDownController::dispose()
{
    GUIElementController::dispose();
}
 
void GUIDropDownController::postLayout()
{
}
 
bool GUIDropDownController::isOpen()
{
    return open;
}
 
void GUIDropDownController::unselect()
{
    if (selectedDropDownOptionControllerIdx == -1) return;
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->unselect();
}
 
void GUIDropDownController::select(int idx) {
    unselect();
    selectedDropDownOptionControllerIdx = idx;
    if (selectedDropDownOptionControllerIdx == -1) return;
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->select();
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeX(dropDownContainerNode);
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeY(dropDownContainerNode);
}
 
void GUIDropDownController::select(GUIElementNode* selectedDropDownOptionElementNode) {
    unselect();
    auto selectedDropDownOptionElementController = selectedDropDownOptionElementNode->getController();
    auto i = 0;
    for (auto dropDownOptionController: dropDownOptionControllers) {
        if (dropDownOptionController == selectedDropDownOptionElementController) {
            select(i);
            break;
        }
        i++;
    }
}
 
void GUIDropDownController::toggleOpenState()
{
    if (open == false) {
        lastSelectedDropDownOptionControllerIdx = selectedDropDownOptionControllerIdx;
    }
    required_dynamic_cast<GUIElementNode*>(node)->getActiveConditions().remove(open == true?CONDITION_OPENED:CONDITION_CLOSED);
    arrowNode->getActiveConditions().remove(open == true?CONDITION_OPENED:CONDITION_CLOSED);
    open = open == true?false:true;
    required_dynamic_cast<GUIElementNode*>(node)->getActiveConditions().add(open == true?CONDITION_OPENED:CONDITION_CLOSED);
    arrowNode->getActiveConditions().add(open == true?CONDITION_OPENED:CONDITION_CLOSED);
    search.clear();
    doSearch();
}
 
void GUIDropDownController::determineDropDownOptionControllers()
{
    vector<GUINode*> childControllerNodes;
    dropDownOptionControllers.clear();
    required_dynamic_cast<GUIParentNode*>(node)->getChildControllerNodes(childControllerNodes);
    for (auto i = 0; i < childControllerNodes.size(); i++) {
        auto childControllerNode = childControllerNodes[i];
        auto childController = dynamic_cast<GUIDropDownOptionController*>(childControllerNode->getController());
        if (childController != nullptr) dropDownOptionControllers.push_back(childController);
    }
}
 
void GUIDropDownController::selectNext()
{
    unselect();
    if (dropDownOptionControllers.size() == 0)
        return;
 
    auto disabledCount = 0;
    while (disabledCount < dropDownOptionControllers.size()) {
        selectedDropDownOptionControllerIdx = (selectedDropDownOptionControllerIdx + 1) % dropDownOptionControllers.size();
        if (dropDownOptionControllers[selectedDropDownOptionControllerIdx]->isDisabled() == false &&
            dropDownOptionControllers[selectedDropDownOptionControllerIdx]->isHidden() == false) break;
        disabledCount++;
    }
    if (disabledCount == dropDownOptionControllers.size()) {
        selectedDropDownOptionControllerIdx = -1;
        return;
    }
 
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->select();
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeX(dropDownContainerNode);
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeY(dropDownContainerNode);
}
 
void GUIDropDownController::selectPrevious()
{
    unselect();
    if (dropDownOptionControllers.size() == 0)
        return;
 
    if (selectedDropDownOptionControllerIdx == -1) selectedDropDownOptionControllerIdx = (int)dropDownOptionControllers.size() - 1;
 
    auto disabledCount = 0;
    while (disabledCount < dropDownOptionControllers.size()) {
        selectedDropDownOptionControllerIdx = (selectedDropDownOptionControllerIdx - 1) % dropDownOptionControllers.size();
        if (selectedDropDownOptionControllerIdx < 0)
            selectedDropDownOptionControllerIdx += dropDownOptionControllers.size();
        if (dropDownOptionControllers[selectedDropDownOptionControllerIdx]->isDisabled() == false &&
            dropDownOptionControllers[selectedDropDownOptionControllerIdx]->isHidden() == false) break;
        disabledCount++;
    }
    if (disabledCount == dropDownOptionControllers.size()) {
        selectedDropDownOptionControllerIdx = -1;
        return;
    }
 
 
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->select();
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeX(dropDownContainerNode);
    dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->scrollToNodeY(dropDownContainerNode);
}
 
void GUIDropDownController::selectLast()
{
    if (lastSelectedDropDownOptionControllerIdx == -1 || lastSelectedDropDownOptionControllerIdx >= dropDownOptionControllers.size()) {
        lastSelectedDropDownOptionControllerIdx = -1;
        return;
    }
    unselect();
 
    dropDownOptionControllers[lastSelectedDropDownOptionControllerIdx]->select();
    dropDownOptionControllers[lastSelectedDropDownOptionControllerIdx]->getNode()->scrollToNodeX(dropDownContainerNode);
    dropDownOptionControllers[lastSelectedDropDownOptionControllerIdx]->getNode()->scrollToNodeY(dropDownContainerNode);
}
 
void GUIDropDownController::doSearch() {
    determineDropDownOptionControllers();
    string selectedDropDownOptionText;
    if (selectedDropDownOptionControllerIdx != -1) {
        selectedDropDownOptionText = required_dynamic_cast<GUITextNode*>(node->getScreenNode()->getNodeById(dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode()->getId() + "_unselected"))->getText().getString();
    }
    auto dropDownTextNodeEnabled = required_dynamic_cast<GUITextNode*>(node->getScreenNode()->getNodeById(node->getId() + "_text_enabled"));
    dropDownTextNodeEnabled->setText(search.empty() == false?MutableString(search):MutableString(selectedDropDownOptionText));
    auto dropDownTextNodeDisabled = required_dynamic_cast<GUITextNode*>(node->getScreenNode()->getNodeById(node->getId() + "_text_disabled"));
    dropDownTextNodeDisabled->setText(search.empty() == false?MutableString(search):MutableString(selectedDropDownOptionText));
    if (dropDownOptionControllers.size() > 0) {
        auto scrollToDropDownOption = -1;
        auto searchLowerCase = StringTools::toLowerCase(search);
        auto i = 0;
        for (auto dropDownOptionController: dropDownOptionControllers) {
            auto match = dropDownOptionController->search(searchLowerCase);
            if (match == true && (scrollToDropDownOption == -1 || i == lastSelectedDropDownOptionControllerIdx)) scrollToDropDownOption = i;
            i++;
        }
        if (scrollToDropDownOption != -1) {
            dropDownOptionControllers[scrollToDropDownOption]->getNode()->scrollToNodeX(dropDownContainerNode);
            dropDownOptionControllers[scrollToDropDownOption]->getNode()->scrollToNodeY(dropDownContainerNode);
        }
    }
}
 
void GUIDropDownController::handleMouseEvent(GUINode* node, GUIMouseEvent* event)
{
    GUIElementController::handleMouseEvent(node, event);
    if (disabled == true) return;
    auto elementNode  = required_dynamic_cast<GUIElementNode*>(this->node);
    if (event->getButton() == MOUSE_BUTTON_LEFT) {
        if (node == this->node && node->isEventBelongingToNode(event) == true) {
            if (event->getType() == GUIMouseEvent::MOUSEEVENT_RELEASED) {
                event->setProcessed(true);
                toggleOpenState();
                node->getScreenNode()->getGUI()->setFoccussedNode(elementNode);
            }
        } else {
            if (open == true) {
                auto innerNode = this->node->getScreenNode()->getNodeById(this->node->getId() + "_inner");
                if (node == this->node && innerNode->isEventBelongingToNode(event) == false) {
                    event->setProcessed(true);
                    toggleOpenState();
                }
            }
        }
    }
}
 
void GUIDropDownController::handleKeyboardEvent(GUIKeyboardEvent* event)
{
    GUIElementController::handleKeyboardEvent(event);
    if (disabled == false) {
        auto keyChar = event->getKeyChar();
        if (keyChar > 32 && keyChar < 127 && keyChar >= 32) {
            event->setProcessed(true);
            if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_TYPED) {
                if (isOpen() == false) toggleOpenState();
                search+= event->getKeyChar();
                doSearch();
            }
        } else {
            switch (event->getKeyCode()) {
                case GUIKeyboardEvent::KEYCODE_ESCAPE:
                    if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_PRESSED) {
                        if (isOpen() == true) {
                            selectLast();
                            toggleOpenState();
                        }
                    }
                    break;
                case GUIKeyboardEvent::KEYCODE_BACKSPACE:
                case GUIKeyboardEvent::KEYCODE_DELETE: {
                    if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_PRESSED) {
                        search.clear();
                    }
                    if (isOpen() == false) toggleOpenState();
                    break;
                case GUIKeyboardEvent::KEYCODE_UP: {
                        event->setProcessed(true);
                        if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_PRESSED) {
                            if (isOpen() == false) {
                                toggleOpenState();
                            } else {
                                selectPrevious();
                            }
                        }
                    }
                    break;
                case GUIKeyboardEvent::KEYCODE_DOWN: {
                        event->setProcessed(true);
                        if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_PRESSED) {
                            if (isOpen() == false) {
                                toggleOpenState();
                            } else {
                                selectNext();
                            }
                        }
                    }
                    break;
                case GUIKeyboardEvent::KEYCODE_SPACE: {
                        event->setProcessed(true);
                        if (event->getType() == GUIKeyboardEvent::KEYBOARDEVENT_KEY_PRESSED) {
                            toggleOpenState();
                        }
                        if (open == false) {
                            node->getScreenNode()->delegateValueChanged(required_dynamic_cast<GUIElementNode*>(node));
                        }
                    }
                    break;
                }
            }
        }
    }
}
 
void GUIDropDownController::tick()
{
    GUIElementController::tick();
    if (open == true) node->getScreenNode()->getGUI()->addMouseOutClickCandidateElementNode(required_dynamic_cast<GUIElementNode*>(this->node));
}
 
void GUIDropDownController::onFocusGained()
{
}
 
void GUIDropDownController::onFocusLost()
{
    if (isOpen() == true) {
        toggleOpenState();
    }
}
 
bool GUIDropDownController::hasValue()
{
    return true;
}
 
const MutableString& GUIDropDownController::getValue()
{
    value.reset();
    if (selectedDropDownOptionControllerIdx != -1) value.append(required_dynamic_cast<GUIElementNode*>(dropDownOptionControllers[selectedDropDownOptionControllerIdx]->getNode())->getValue());
    return value;
}
 
void GUIDropDownController::setValue(const MutableString& value)
{
    unselect();
    auto i = 0;
    for (auto dropDownOptionController: dropDownOptionControllers) {
        auto dropDownOptionNode = required_dynamic_cast<GUIElementNode*>(dropDownOptionController->getNode());
        if (value.equals(dropDownOptionNode->getValue())) {
            select(i);
            break;
        }
        i++;
    }
}
 
void GUIDropDownController::onSubTreeChange() {
    determineDropDownOptionControllers();
    selectedDropDownOptionControllerIdx = -1;
    auto i = 0;
    for (auto dropDownOptionController: dropDownOptionControllers) {
        auto dropDownOptionNode = required_dynamic_cast<GUIElementNode*>(dropDownOptionController->getNode());
        dropDownOptionController->unselect();
        if (dropDownOptionNode->isSelected() == true) {
            selectedDropDownOptionControllerIdx = i;
            break;
        }
        i++;
    }
    if (selectedDropDownOptionControllerIdx != -1) {
        select(selectedDropDownOptionControllerIdx);
    }
}