javascript.h

Go to the documentation of this file.

// Automatically generated file. DO NOT EDIT!
// Edit www.js instead.

const string java_code = "\n\
// $Id$\n\
\n\
var reflection_cgi = \"http://unidata.ucar.edu/cgi-bin/dods/posturl.pl\";\n\
\n\
// Event handlers for the disposition button.\n\
\n\
// The ascii_button handler sends data to a new window. The user can then \n\
// save the data to a file.\n\
\n\
function ascii_button() {\n\
    var url = new String(document.forms[0].url.value);\n\
\n\
    var url_parts = url.split(\"?\");\n\
    /* handle case where constraint is null. */\n\
    if (url_parts[1] != null) {\n\
        var ascii_url = url_parts[0] + \".ascii?\" + url_parts[1];\n\
    }\n\
    else {\n\
        var ascii_url = url_parts[0] + \".ascii?\";\n\
    }\n\
\n\
    window.open(ascii_url, \"ASCII_Data\");\n\
}\n\
\n\
/* The netcdf_button handler loads the data to the current window. Since it \n\
   is netcdf/binary, Netscape will ask the user for a filename and save the data\n\
   to that file. The parameter 'ext' should be 'nc'. */\n\
\n\
function netcdf_button(ext) {\n\
    var url = new String(document.forms[0].url.value);\n\
\n\
    var url_parts = url.split(\"?\");\n\
    /* handle case where constraint is null. */\n\
    if (url_parts[1] != null) {\n\
        var binary_url = url_parts[0] + \".\" + ext + \"?\" + url_parts[1];\n\
    }\n\
    else {\n\
        var binary_url = url_parts[0] + \".\" + ext + \"?\";\n\
    }\n\
\n\
    window.location = binary_url;\n\
}\n\
\n\
/* The binary_button handler loads the data to the current window. Since it \n\
   is binary, Netscape will ask the user for a filename and save the data\n\
   to that file. */\n\
\n\
function binary_button(ext) {\n\
    var url = new String(document.forms[0].url.value);\n\
\n\
    var url_parts = url.split(\"?\");\n\
    /* handle case where constraint is null. */\n\
    if (url_parts[1] != null) {\n\
        var binary_url = url_parts[0] + \".\" + ext + \"?\" + url_parts[1];\n\
    }\n\
    else {\n\
        var binary_url = url_parts[0] + \".\" + ext + \"?\";\n\
    }\n\
\n\
    window.location = binary_url;\n\
}\n\
\n\
/* Route the URL to Matlab, IDL, .... Users must add an entry into their mime\n\
   types file (aka list of Netscape helper applications) so that the URL will\n\
   be fedd into Matlab which must, in addition, be running loaddods.\n\
\n\
   Note that reflection_cgi is a global JavaScript variable set at the \n\
   begining of this `file'. \n\
\n\
   DEPRECATED */\n\
\n\
function program_button() {\n\
    var program_url = new String(document.forms[0].url.value);\n\
\n\
    /* Build a call to the reflector CGI. */\n\
    var CGI = reflection_cgi + \"?\" + \"url=\" + program_url + \"&disposition=matlab\";\n\
\n\
    window.location = CGI;\n\
}\n\
\n\
var help = 0;                   // Our friend, the help window.\n\
\n\
function help_button() {\n\
    // Check the global to keep from opening the window again if it is\n\
    // already visible. I think Netscape handles this but I know it will\n\
    // write the contents over and over again. This preents that, too.\n\
    // 10/8/99 jhrg\n\
    if (help && !help.closed)\n\
        return;\n\
\n\
    // Resize on Netscape 4 is hosed. When enabled, if a user resizes then\n\
    // the root window's document gets reloaded. This does not happen on IE5.\n\
    // regardless, with scrollbars we don't absolutely need to be able to\n\
    // resize. 10/8/99 jhrg\n\
    help = window.open(\"http://www.opendap.org/online_help_files/opendap_form_help.html\",\n\
                       \"help\", \"scrollbars,dependent,width=600,height=400\");\n\
}\n\
\n\
//function open_dods_home() {\n\
//    window.open(\"http://www.opendap.org/\", \"DODS_HOME_PAGE\");\n\
//}\n\
\n\
\n\
// Helper functions for the form.\n\
\n\
function describe_index() {\n\
   window.status = \"Enter start, stride and stop for the array dimension.\";\n\
   return true;\n\
}\n\
\n\
function describe_selection() {\n\
   window.status = \"Enter a relational expression (e.g., <20). String variables may need values to be quoted\";\n\
   return true;\n\
}\n\
\n\
function describe_operator() {\n\
   window.status = \"Choose a relational operator. Use - to enter a function name).\";\n\
   return true;\n\
}\n\
\n\
function describe_projection() {\n\
   window.status = \"Add this variable to the projection.\";\n\
   return true;\n\
}\n\
\n\
// The dods_url object.\n\
\n\
// CTOR for dods_url\n\
// Create the DODS URL object.\n\
function dods_url(base_url) {\n\
    this.url = base_url;\n\
    this.projection = \"\";\n\
    this.selection = \"\";\n\
    this.num_dods_vars = 0;\n\
    this.dods_vars = new Array();\n\
        \n\
    this.build_constraint = build_constraint;\n\
    this.add_dods_var = add_dods_var;\n\
    this.update_url = update_url;\n\
}\n\
\n\
// Method of dods_url\n\
// Add the projection and selection to the displayed URL.\n\
function update_url() {\n\
    this.build_constraint();\n\
    var url_text = this.url;\n\
    // Only add the projection & selection (and ?) if there really are\n\
    // constraints! \n\
    if (this.projection.length + this.selection.length > 0)\n\
        url_text += \"?\" + this.projection + this.selection;\n\
    document.forms[0].url.value = url_text;\n\
}\n\
\n\
// Method of dods_url\n\
// Scan all the form elements and pick out the various pieces of constraint\n\
// information. Add these to the dods_url instance.\n\
function build_constraint() {\n\
    var p = \"\";\n\
    var s = \"\";\n\
    for (var i = 0; i < this.num_dods_vars; ++i) {\n\
        if (this.dods_vars[i].is_projected == 1) {\n\
            // The comma is a clause separator.\n\
            if (p.length > 0)\n\
                p += \",\";\n\
            p += this.dods_vars[i].get_projection();\n\
        }\n\
        var temp_s = this.dods_vars[i].get_selection();\n\
        if (temp_s.length > 0)\n\
            s += \"&\" + temp_s;    // The ampersand is a prefix to the clause.\n\
    }\n\
\n\
    this.projection = p;\n\
    this.selection = s;\n\
}\n\
\n\
// Method of dods_url\n\
// Add the variable to the dods_var array of dods_vars. The var_index is the\n\
// number of *this particular* variable in the dataset, zero-based.\n\
function add_dods_var(dods_var) {\n\
    this.dods_vars[this.num_dods_vars] = dods_var;\n\
    this.num_dods_vars++;\n\
}\n\
\n\
// dods_var\n\
\n\
// CTOR for dods_var\n\
// name: the name of the variable from DODS' perspective.\n\
// js_var_name: the name of the variable within the form.\n\
// is_array: 1 if this is an array, 0 otherwise.\n\
function dods_var(name, js_var_name, is_array) {\n\
    // Common members\n\
    this.name = name;\n\
    this.js_var_name = js_var_name;\n\
    this.is_projected = 0;\n\
    if (is_array > 0) {\n\
        this.is_array = 1;\n\
        this.num_dims = 0;        // Holds the number of dimensions\n\
        this.dims = new Array(); // Holds the length of the dimensions\n\
\n\
        this.add_dim = add_dim;\n\
        this.display_indices = display_indices;\n\
        this.erase_indices = erase_indices;\n\
    }\n\
    else\n\
        this.is_array = 0;\n\
\n\
    this.handle_projection_change = handle_projection_change;\n\
    this.get_projection = get_projection;\n\
    this.get_selection = get_selection;\n\
}\n\
\n\
// Method of dods_var\n\
// Add a dimension to a DODS Array object.\n\
function add_dim(dim_size) {\n\
    this.dims[this.num_dims] = dim_size;\n\
    this.num_dims++;\n\
}\n\
\n\
// Method of dods_var\n\
// Add the array indices to the text widgets associated with this DODS\n\
// array object. The text widgets are names <var_name>_0, <var_name>_1, ...\n\
// <var_name>_n for an array with size N+1.\n\
function display_indices() {\n\
    for (var i = 0; i < this.num_dims; ++i) {\n\
        var end_index = this.dims[i]-1;\n\
        var s = \"0:1:\" + end_index.toString();\n\
        var text_widget = \"document.forms[0].\" + this.js_var_name + \"_\" + i.toString();\n\
        eval(text_widget).value = s;\n\
    }\n\
}\n\
\n\
// Method of dods_var\n\
// Use this to remove index information from a DODS array object.\n\
function erase_indices() {\n\
    for (var i = 0; i < this.num_dims; ++i) {\n\
        var text_widget = \"document.forms[0].\" + this.js_var_name + \"_\" + i.toString();\n\
        eval(text_widget).value = \"\";\n\
    }\n\
}\n\
\n\
// Method of  dods_var\n\
function handle_projection_change(check_box) {\n\
    if (check_box.checked) {\n\
        this.is_projected = 1;\n\
        if (this.is_array == 1)\n\
            this.display_indices();\n\
    }\n\
    else {\n\
        this.is_projected = 0;\n\
        if (this.is_array == 1)\n\
            this.erase_indices();\n\
    }\n\
\n\
    DODS_URL.update_url();\n\
}\n\
\n\
\n\
// Method of dods_var\n\
// Get the projection sub-expression for this variable.\n\
function get_projection() {\n\
    var p = \"\";\n\
    if (this.is_array == 1) {\n\
        p = this.name;          // ***\n\
        for (var i = 0; i < this.num_dims; ++i) {\n\
            var text_widget = \"document.forms[0].\" + this.js_var_name + \"_\" + i.toString();\n\
            p += \"[\" + eval(text_widget).value + \"]\";\n\
        }\n\
    }\n\
    else {\n\
        p = this.name;          // ***\n\
    }\n\
\n\
    return p;\n\
}\n\
\n\
// Method of dods_var\n\
// Get the selection (which is null for arrays).\n\
function get_selection() {\n\
    var s = \"\";\n\
    if (this.is_array == 1) {\n\
        return s;\n\
    }\n\
    else {\n\
        var text_widget = \"document.forms[0].\" + this.js_var_name + \"_selection\";\n\
        if (eval(text_widget).value != \"\") {\n\
            var oper_widget_name = \"document.forms[0].\" + this.js_var_name + \"_operator\";\n\
            var oper_widget = eval(oper_widget_name);\n\
            var operator = oper_widget.options[oper_widget.selectedIndex].value;\n\
            // If the operator is `-' then don't prepend the variable name!\n\
            // This provides a way for users to enter function names as\n\
            // selection clauses. \n\
            if (operator == \"-\")\n\
                s = eval(text_widget).value;\n\
            else\n\
                s = this.name + operator + eval(text_widget).value; // ***\n\
        }\n\
    }\n\
\n\
    return s;\n\
}    \n\
";