mirror of
https://github.com/pocoproject/poco.git
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355 lines
9.3 KiB
C++
355 lines
9.3 KiB
C++
//
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// Table.cpp
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//
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// $Id: //poco/Main/WebWidgets/src/Table.cpp#14 $
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//
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// Library: WebWidgets
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// Package: Views
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// Module: Table
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//
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// Copyright (c) 2008, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#include "Poco/WebWidgets/Table.h"
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#include "Poco/WebWidgets/RequestHandler.h"
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#include "Poco/NumberParser.h"
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#include "Poco/Net/HTTPServerResponse.h"
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namespace Poco {
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namespace WebWidgets {
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const std::string Table::FIELD_COL("col");
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const std::string Table::FIELD_ROW("row");
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const std::string Table::FIELD_VAL("val");
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const std::string Table::FIELD_CNT("cnt");
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const std::string Table::EV_CELLCLICKED("click");
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const std::string Table::EV_BEFORECELLCLICKED("beforeclick");
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const std::string Table::EV_ROWCLICKED("row");
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const std::string Table::EV_BEFOREROWCLICKED("beforerow");
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const std::string Table::EV_CELLVALUECHANGED("edit");
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const std::string Table::EV_BEFORECELLVALUECHANGED("beforeedit");
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const std::string Table::EV_LOADDATA("load");
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const std::string Table::EV_AFTERLOAD("afterload");
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const std::string Table::EV_RENDER("render");
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const std::string Table::EV_MOUSEUP("mouseup");
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const std::string Table::EV_MOUSEDOWN("mousedown");
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const std::string Table::EV_KEYDOWN("keydown");
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const std::string Table::EV_KEYPRESSED("keypressed");
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const std::string Table::EV_ROWSELECTED("rowselected");
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const std::string Table::EV_CELLSELECTED("cellselected");
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const std::string Table::EV_STARTCELLVALUECHANGE("startedit");
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Table::Table(const TableColumns& tc, TableModel::Ptr pModel):
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View(typeid(Table)),
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_pModel(pModel),
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_columns(tc),
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_sm(SM_CELL),
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_dragAndDrop(false),
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_maxRowsPerPage(0)
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{
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checkValidConfig();
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}
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Table::Table(const std::string& name, const TableColumns& tc, TableModel::Ptr pModel):
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View(name, typeid(Table)),
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_pModel(pModel),
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_columns(tc),
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_sm(SM_CELL),
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_dragAndDrop(false),
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_maxRowsPerPage(0)
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{
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checkValidConfig();
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}
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Table::Table(const std::string& name, const std::type_info& type, const TableColumns& tc, TableModel::Ptr pModel):
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View(name, type),
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_pModel(pModel),
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_columns(tc),
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_sm(SM_CELL),
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_dragAndDrop(false),
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_maxRowsPerPage(0)
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{
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checkValidConfig();
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}
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Table::Table(const std::type_info& type, const TableColumns& tc, TableModel::Ptr pModel):
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View(type),
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_pModel(pModel),
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_columns(tc),
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_sm(SM_CELL),
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_dragAndDrop(false),
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_maxRowsPerPage(0)
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{
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checkValidConfig();
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}
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Table::~Table()
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{
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}
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void Table::checkValidConfig()
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{
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if (_columns.empty())
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throw Poco::InvalidArgumentException("At least one column is required for a table");
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if (!_pModel)
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throw Poco::InvalidArgumentException("An empty model is not allowed");
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if (_columns.size() != _pModel->getColumnCount())
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throw Poco::InvalidArgumentException("Model column count mismatches Columns count");
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TableColumns::iterator it = _columns.begin();
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for (; it != _columns.end(); ++it)
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{
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if ((*it))
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adoptChild((*it));;
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}
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}
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void Table::handleForm(const std::string& field, const std::string& value)
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{
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// Form fields from a table?
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}
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void Table::handleAjaxRequest(const Poco::Net::NameValueCollection& args, Poco::Net::HTTPServerResponse& response)
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{
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static const std::string strZero("0");
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static const std::string strMin1("-1");
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const std::string& ev = args[RequestHandler::KEY_EVID];
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const std::string& strRow = args.get(FIELD_ROW, strMin1);
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const std::string& strCol = args.get(FIELD_COL, strMin1);
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const std::string& strCnt = args.get(FIELD_CNT, strZero);
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int row(-1);
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int cnt(-1);
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int col(-1);
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Poco::NumberParser::tryParse(strRow, row);
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Poco::NumberParser::tryParse(strCol, col);
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Poco::NumberParser::tryParse(strCnt, cnt);
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if (ev == EV_LOADDATA)
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{
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/// serialize the Table back
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/// check for cnt and start if only a segment was requested
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if (row < 0)
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row = 0;
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if (cnt < 0)
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cnt = 0;
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LoadData ld(&response, this, row, cnt);
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beforeLoad.notify(this, ld);
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}
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else if (ev == EV_CELLCLICKED)
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{
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if (col < 0 || row < 0 || col >= getColumnCount())
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throw InvalidArgumentException("col/row out of range");
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CellClick ev(row, col);
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cellClicked(this, ev);
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response.send();
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}
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else if (ev == EV_BEFORECELLCLICKED)
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{
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if (col < 0 || row < 0 || col >= getColumnCount())
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throw InvalidArgumentException("col/row out of range");
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CellClick ev(row, col);
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beforeCellClicked(this, ev);
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response.send();
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}
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else if (ev == EV_ROWCLICKED)
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{
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if (row < 0 )
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throw InvalidArgumentException("row out of range");
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std::size_t theRow(row);
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rowClicked(this, theRow);
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response.send();
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}
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else if (ev == EV_BEFOREROWCLICKED)
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{
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if (row < 0 )
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throw InvalidArgumentException("row out of range");
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std::size_t theRow(row);
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beforeRowClicked(this, theRow);
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response.send();
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}
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else if (ev == EV_CELLVALUECHANGED)
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{
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if (col < 0 || row < 0 || col >= getColumnCount())
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throw InvalidArgumentException("col/row out of range");
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const std::string& val = args.get(FIELD_VAL);
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Cell::Ptr pCell = getColumns()[col]->getCell();
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Formatter::Ptr pForm;
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if (pCell)
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pForm = pCell->getFormatter();
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if (pForm)
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{
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Poco::Any any = pForm->parse(val);
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setValue(any, row, col);
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}
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else
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setValue(Poco::Any(val), row, col);
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response.send();
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}
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else if (ev == EV_BEFORECELLVALUECHANGED)
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{
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const std::string& val = args.get(FIELD_VAL);
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Poco::Any oldValue;
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if (getColumnCount() > col)
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oldValue = getValue(row, col);
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Cell::Ptr pCell = getColumns()[col]->getCell();
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Formatter::Ptr pForm;
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if (pCell)
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pForm = pCell->getFormatter();
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if (pForm)
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{
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Poco::Any newValue = pForm->parse(val);
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CellValueChange cvc(row, col, oldValue, newValue);
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beforeCellValueChanged(this, cvc);
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}
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else
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{
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Poco::Any newValue(val);
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CellValueChange cvc(row, col, oldValue, newValue);
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beforeCellValueChanged(this, cvc);
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}
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response.send();
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}
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else if (ev == EV_AFTERLOAD)
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{
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Table* pTable = this;
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afterLoad(this, pTable);
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response.send();
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}
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else if (ev == EV_RENDER)
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{
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Table* pTable = this;
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afterRender(this, pTable);
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response.send();
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}
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else if (ev == EV_MOUSEUP)
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{
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Table* pTable = this;
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mouseUp(this, pTable);
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response.send();
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}
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else if (ev == EV_MOUSEDOWN)
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{
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Table* pTable = this;
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mouseDown(this, pTable);
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response.send();
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}
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else if (ev == EV_KEYDOWN)
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{
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Table* pTable = this;
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keyDown(this, pTable);
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response.send();
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}
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else if (ev == EV_KEYPRESSED)
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{
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Table* pTable = this;
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keyPressed(this, pTable);
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response.send();
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}
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else if (ev == EV_CELLSELECTED)
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{
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if (col < 0 || row < 0 || col >= getColumnCount())
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throw InvalidArgumentException("col/row out of range");
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CellClick ev(row, col);
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cellSelected(this, ev);
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response.send();
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}
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else if (ev == EV_ROWSELECTED)
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{
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if (row < 0 )
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throw InvalidArgumentException("row out of range");
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std::size_t theRow(row);
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rowSelected(this, theRow);
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response.send();
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}
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else if (ev == EV_STARTCELLVALUECHANGE)
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{
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if (col < 0 || row < 0 || col >= getColumnCount())
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throw InvalidArgumentException("col/row out of range");
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CellClick ev(row, col);
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startCellValueChange(this, ev);
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response.send();
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}
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}
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void Table::setValue(const Poco::Any& val, std::size_t row, std::size_t col)
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{
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Poco::Any oldValue;
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if (getRowCount() > row)
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oldValue = getValue(row, col);
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CellValueChange ev(row, col, oldValue, val);
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beforeCellValueChanged(this,ev);
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_pModel->setValue(ev.newValue, row, col);
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cellValueChanged(this, ev);
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}
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Table::CellClick::CellClick(std::size_t r, std::size_t c):
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row(r),
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col(c)
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{
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}
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Table::CellValueChange::CellValueChange(std::size_t r, std::size_t c, const Poco::Any& old, const Poco::Any& n):
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row(r),
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col(c),
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oldValue(old),
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newValue(n)
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{
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}
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Table::LoadData::LoadData(Poco::Net::HTTPServerResponse* pR, Table* pT, int row, int cnt):
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pResponse(pR),
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pTable(pT),
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firstRow(row),
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rowCnt(cnt)
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{
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}
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} } // namespace Poco::WebWidgets
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