src/op5/ninja_sdk/js_class_generator.php

   1 <?php
   2
   3 require_once( 'generator_lib.php' );
   4
   5 abstract class js_class_generator {
   6         protected $fp;
   7         protected $indent_lvl = array();
   8         protected $class_suffix = '';
   9         protected $class_dir = 'js';
  10         protected $class_basedir = '.';
  11         protected $classname;
  12
  13         public function generate( $skip_generated_note = false ) {
  14                 $class_dir = dirname( $this->get_filename() );
  15
  16                 if( !is_dir( $class_dir ) && !mkdir( $class_dir, 0755, true ) )
  17                         throw new GeneratorException( "Could not create dir $class_dir" );
  18
  19                 $this->fp = fopen( $this->get_filename(), 'w' );
  20
  21                 if( $this->fp === false )
  22                         throw new GeneratorException( "Could not open ".$this->get_filename()." for writing" );
  23
  24                 if( !$skip_generated_note )
  25                         $this->comment( "\nNOTE!\n\nThis is an auto generated file. Changes to this file will be overwritten!\n" );
  26         }
  27
  28         public function set_class_suffix( $class_suffix ) {
  29                 $this->class_suffix = $class_suffix;
  30         }
  31
  32         public function set_class_dir( $class_dir ) {
  33                 $this->class_dir = $class_dir;
  34         }
  35
  36         public function set_basedir( $class_basedir ) {
  37                 $this->class_basedir = $class_basedir;
  38         }
  39
  40         public function exists() {
  41                 return file_exists( $this->get_filename() );
  42         }
  43
  44         public function get_classname() {
  45                 return $this->classname . $this->class_suffix;
  46         }
  47
  48         public function get_filename() {
  49                 return $this->class_basedir . DIRECTORY_SEPARATOR . $this->class_dir . DIRECTORY_SEPARATOR . $this->classname . '.js';
  50         }
  51
  52         public function init_class( $args = array() ) {
  53                 $argstr = implode(', ', $args);
  54                 $this->write();
  55                 $this->write( 'var '.$this->get_classname() . ' = function '.$this->get_classname().'('.$argstr.'){' );
  56         }
  57
  58         public function finish_class() {
  59                 $this->write( "};" );
  60         }
  61
  62         public function variable( $name, $default = null ) {
  63                 $this->write( "this.$name = %s;", $default );
  64         }
  65
  66         public function init_function( $name, $args = array() ) {
  67                 $argstr = implode(', ', $args);
  68                 if( $name === false ) {
  69                         $this->write( "function($argstr) {" );
  70                 } else {
  71                         $this->write( "this.$name = function($argstr) {" );
  72                 }
  73         }
  74
  75         public function finish_function() {
  76                 $this->write( "};" );
  77                 $this->write();
  78         }
  79
  80         public function comment( $comment ) {
  81                 $lines = explode( "\n", $comment );
  82                 $curlvl = array_sum( $this->indent_lvl );
  83                 foreach( $lines as $line ) {
  84                         fwrite( $this->fp, str_repeat( "\t", $curlvl ) . "// " . trim($line) . "\n" );
  85                 }
  86         }
  87         public function write( $block = '' ) {
  88                 $args = func_get_args();
  89                 $block = array_shift( $args );
  90                 $args_str = array_map( function($var){return json_encode($var);}, $args );
  91                 $block = vsprintf($block,$args_str);
  92
  93                 $lines = explode( "\n", $block );
  94                 foreach( $lines as $line ) {
  95                         for($i=substr_count( $line, '}' ); $i>0; $i--)
  96                                 array_pop( $this->indent_lvl );
  97                         $curlvl = array_sum( $this->indent_lvl );
  98                         if( substr( trim($line), 0, 4) == 'case' || substr( trim($line), 0, 8) == 'default:' )
  99                                 $curlvl--;
 100                         fwrite( $this->fp, str_repeat( "\t", $curlvl ) . $line . "\n" );
 101                         for($i=substr_count( $line, '{' ); $i>0; $i--)
 102                                 $this->indent_lvl[] = (strpos( $line, "switch" ) !== false) ? 2 : 1;
 103                 }
 104         }
 105 }