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/*
Copyright 2013 bigbiff/Dees_Troy TeamWin
This file is part of TWRP/TeamWin Recovery Project.
TWRP is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
TWRP is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with TWRP. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
extern "C" {
#include "../twcommon.h"
#include "../minuitwrp/minui.h"
}
#include "rapidxml.hpp"
#include "objects.hpp"
#include "../data.hpp"
GUIListBox::GUIListBox(xml_node<>* node) : GUIScrollList(node)
{
xml_attribute<>* attr;
xml_node<>* child;
mIconSelected = mIconUnselected = NULL;
mUpdate = 0;
isCheckList = false;
// Get the icons, if any
child = FindNode(node, "icon");
if (child) {
mIconSelected = LoadAttrImage(child, "selected");
mIconUnselected = LoadAttrImage(child, "unselected");
}
int iconWidth = std::max(mIconSelected->GetWidth(), mIconUnselected->GetWidth());
int iconHeight = std::max(mIconSelected->GetHeight(), mIconUnselected->GetHeight());
SetMaxIconSize(iconWidth, iconHeight);
// Handle the result variable
child = FindNode(node, "data");
if (child) {
attr = child->first_attribute("name");
if (attr)
mVariable = attr->value();
attr = child->first_attribute("default");
if (attr)
DataManager::SetValue(mVariable, attr->value());
// Get the currently selected value for the list
DataManager::GetValue(mVariable, currentValue);
}
else
allowSelection = false; // allows using listbox as a read-only list or menu
// Get the data for the list
child = FindNode(node, "listitem");
if (!child) return;
while (child) {
ListItem item;
attr = child->first_attribute("name");
if (!attr)
continue;
item.displayName = gui_parse_text(attr->value());
item.variableValue = gui_parse_text(child->value());
item.selected = (child->value() == currentValue);
item.action = NULL;
xml_node<>* action = child->first_node("action");
if (action) {
item.action = new GUIAction(action);
allowSelection = true;
}
xml_node<>* variable_name = child->first_node("data");
if (variable_name) {
attr = variable_name->first_attribute("variable");
if (attr) {
item.variableName = attr->value();
item.selected = (DataManager::GetIntValue(item.variableName) != 0);
allowSelection = true;
isCheckList = true;
}
}
LoadConditions(child, item.mConditions);
mListItems.push_back(item);
mVisibleItems.push_back(mListItems.size()-1);
child = child->next_sibling("listitem");
}
}
GUIListBox::~GUIListBox()
{
}
int GUIListBox::Update(void)
{
if(!isConditionTrue())
return 0;
GUIScrollList::Update();
if (mUpdate) {
mUpdate = 0;
if (Render() == 0)
return 2;
}
return 0;
}
int GUIListBox::NotifyVarChange(const std::string& varName, const std::string& value)
{
GUIScrollList::NotifyVarChange(varName, value);
if(!isConditionTrue())
return 0;
// Check to see if the variable that we are using to store the list selected value has been updated
if (varName == mVariable) {
currentValue = value;
mUpdate = 1;
}
std::vector<size_t> mVisibleItemsOld;
std::swap(mVisibleItemsOld, mVisibleItems);
for (size_t i = 0; i < mListItems.size(); i++) {
ListItem& item = mListItems[i];
// update per-item visibility condition
bool itemVisible = UpdateConditions(item.mConditions, varName);
if (itemVisible)
mVisibleItems.push_back(i);
if (isCheckList)
{
if (item.variableName == varName) {
item.selected = (value != "0");
mUpdate = 1;
}
}
else if (varName == mVariable) {
if (item.variableValue == currentValue) {
item.selected = 1;
SetVisibleListLocation(mVisibleItems.empty() ? 0 : mVisibleItems.size()-1);
} else {
item.selected = 0;
}
}
}
if (mVisibleItemsOld != mVisibleItems) {
mUpdate = 1; // some item's visibility has changed
if (firstDisplayedItem >= mVisibleItems.size()) {
// all items in the view area were removed - make last item visible
SetVisibleListLocation(mVisibleItems.empty() ? 0 : mVisibleItems.size()-1);
}
}
return 0;
}
void GUIListBox::SetPageFocus(int inFocus)
{
GUIScrollList::SetPageFocus(inFocus);
if (inFocus) {
DataManager::GetValue(mVariable, currentValue);
NotifyVarChange(mVariable, currentValue);
}
}
size_t GUIListBox::GetItemCount()
{
return mVisibleItems.size();
}
void GUIListBox::RenderItem(size_t itemindex, int yPos, bool selected)
{
// note: the "selected" parameter above is for the currently touched item
// don't confuse it with the more persistent "selected" flag per list item used below
ListItem& item = mListItems[mVisibleItems[itemindex]];
ImageResource* icon = item.selected ? mIconSelected : mIconUnselected;
const std::string& text = item.displayName;
RenderStdItem(yPos, selected, icon, text.c_str());
}
void GUIListBox::NotifySelect(size_t item_selected)
{
if (!isCheckList) {
// deselect all items, even invisible ones
for (size_t i = 0; i < mListItems.size(); i++) {
mListItems[i].selected = 0;
}
}
ListItem& item = mListItems[mVisibleItems[item_selected]];
if (isCheckList) {
int selected = 1 - item.selected;
item.selected = selected;
DataManager::SetValue(item.variableName, selected ? "1" : "0");
} else {
item.selected = 1;
string str = item.variableValue; // [check] should this set currentValue instead?
DataManager::SetValue(mVariable, str);
}
if (item.action)
item.action->doActions();
mUpdate = 1;
}
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