Texas Instruments matrix-gui-2.0 hacking -- app_description.php

<?php

/*
* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ *
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
*    Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
*
*    Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the
*    distribution.
*
*    Neither the name of Texas Instruments Incorporated nor the names of
*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
*  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
*  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
*  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
*  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
*  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/

# 加载通用函数
require("helper_functions.php");

$var = read_desktop_file();

if($var==null)
{
echo "Json.txt file is empty or doesn't exist.";
return;
}

//Some parts of the code doesn't set the submenu variable when the user is at the Main Menu which is relected in the "top" variable
$submenu = isset($_GET["submenu"]) == true ? $_GET["submenu"] : "main_menu" ;

$found_app =  get_application($var,$submenu,$_GET["app"]);

$menu_title = $found_app["Name"];
$enable_main_menu_link = true;
?>
<?php include "menubar.php"; ?>

<?php

$title = $found_app["Name"];                # 获取app名字

$description = "No Description";            # 描述
$program_type = $found_app["ProgramType"];  # 获取程序类型

if($found_app["Description_Link"]!=-1)      # 获取描述链接
{
# 读取描述链接文件
$handle = fopen($found_app["Description_Link"], "rb");
$description = fread($handle,filesize($found_app["Description_Link"]));
fclose($handle);

if(strlen($description)==0)             # 没有获取到文件描述数据
$description = "Invalid link for description page";
}

$app_title = $found_app["Name"];            # app的标题是app的名字

# 合成超级链接
$link =  "run_script.php?&submenu=".urlencode($submenu)."&app=".urlencode($app_title);
?>
<div id = "descrip_text">
<div id ="no_display" style = "display:none;">          <!-- 没有显示出来 -->
<h1 style = "color:red;">Sorry</h1>
You can't run the GUI application <?php echo $title; ?>. The system has detected that your embedded system is not connected to a display device.
</div>
<div id = "running_remotely"  style = "display:none;">  <!-- 没有显示出来 -->
<h1 style = "color:yellow;">Warning</h1>
You are currently running Matrix remotely and <?php echo $title; ?> is a GUI based application. <br>
After clicking run, look at the display device connected to the embedded system to see and/or interact with the application
</div>
<div id = "run_application" style= "text-align:center;">
<a href = "<?php echo $link;?>"><img id = "run_img" src= "images/run-icon.png"></a>
</div>
<div>
<!-- 显示描述文件内容 -->
<?php echo $description; ?>
</div>
</div>

<script>
// 自动生成js变量
<?php
if($program_type=="gui")
echo "var isgraphicalApp = true;";
else
echo "var isgraphicalApp = false;";
?>

// 这里主要是让对应的内容显示出来
if(isgraphicalApp == true)
{
if(has_graphics == false)
{

$("#no_display").show();
$("#run_application").hide();
}
else if(client_is_host == false)
{
$("#running_remotely").show();
}
}
</script>