1 files changed, 255 insertions, 0 deletions
diff --git a/gui/listbox.cpp b/gui/listbox.cpp
new file mode 100644
index 000000000..9d36baed7
--- /dev/null
+++ b/gui/listbox.cpp
@@ -0,0 +1,255 @@
+/*
+	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"
+#include "pages.hpp"
+
+extern std::vector<language_struct> Language_List;
+
+GUIListBox::GUIListBox(xml_node<>* node) : GUIScrollList(node)
+{
+	xml_attribute<>* attr;
+	xml_node<>* child;
+	mIconSelected = mIconUnselected = NULL;
+	mUpdate = 0;
+	isCheckList = isTextParsed = false;
+
+	// Get the icons, if any
+	child = FindNode(node, "icon");
+	if (child) {
+		mIconSelected = LoadAttrImage(child, "selected");
+		mIconUnselected = LoadAttrImage(child, "unselected");
+	}
+	int iconWidth = 0, iconHeight = 0;
+	if (mIconSelected && mIconSelected->GetResource() && mIconUnselected && mIconUnselected->GetResource()) {
+		iconWidth = std::max(mIconSelected->GetWidth(), mIconUnselected->GetWidth());
+		iconHeight = std::max(mIconSelected->GetHeight(), mIconUnselected->GetHeight());
+	} else if (mIconSelected && mIconSelected->GetResource()) {
+		iconWidth = mIconSelected->GetWidth();
+		iconHeight = mIconSelected->GetHeight();
+	} else if (mIconUnselected && mIconUnselected->GetResource()) {
+		iconWidth = mIconUnselected->GetWidth();
+		iconHeight = 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);
+		if (mVariable == "tw_language") {
+			std::vector<language_struct>::iterator iter;
+			for (iter = Language_List.begin(); iter != Language_List.end(); iter++) {
+				ListItem data;
+				data.displayName = (*iter).displayvalue;
+				data.variableValue = (*iter).filename;
+				data.action = NULL;
+				if (currentValue == (*iter).filename) {
+					data.selected = 1;
+					DataManager::SetValue("tw_language_display", (*iter).displayvalue);
+				} else
+					data.selected = 0;
+				mListItems.push_back(data);
+			}
+		}
+	}
+	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;
+		// We will parse display names when we get page focus to ensure that translating takes place
+		item.displayName = 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 || varName.empty()) {
+				std::string val;
+				DataManager::GetValue(item.variableName, val);
+				item.selected = (val != "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 >= (int)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) {
+		if (!isTextParsed) {
+			isTextParsed = true;
+			for (size_t i = 0; i < mListItems.size(); i++) {
+				ListItem& item = mListItems[i];
+				item.displayName = gui_parse_text(item.displayName);
+			}
+		}
+		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;
+}