javascript.php

来自「视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.」· PHP 代码 · 共 562 行 · 第 1/2 页

    /**
     * Checks the output mode and acts according to it
     *
     * @param  string   $str the string returned from the calling function
     * @return mixed    depends on the output mode,
     *                  $str if it's HTML_JAVASCRIPT_OUTPUT_RETURN, true otherwise
     * @access private
     */
    function _out($str)
    {
        static $fp;
        if( isset($this) ){
            $mode = $this->_mode;
            $file = $this->_file;
        } else {
            return $str;
        }
        switch($mode) {
            case HTML_JAVASCRIPT_OUTPUT_RETURN: {
                return $str;
                break;
            }

            case HTML_JAVASCRIPT_OUTPUT_ECHO: {
                echo $str;
                return true;
                break;
            }

            case HTML_JAVASCRIPT_OUTPUT_FILE: {
                $fp = fopen($file, 'ab');
                fwrite($fp, $str);
                return true;
                break;
            }
            default: {
                HTML_Javascript::raiseError('Invalid output mode');
                break;
            }
        }
    }

    // }}} _out
    // {{{ write

    /**
     * A wrapper for document.writeln
     *
     * @access public
     * @param  string  $str the string to output
     * @param  boolean $var set to true if $str is a variable name
     * @return mixed   PEAR_Error if no script was started or the processed string
     */
    function write($str, $var = false)
    {
        if ($var) {
            $ret = HTML_Javascript::_out(
                    'document.writeln('.$str.')'.HTML_JAVASCRIPT_NL
                    );
        } else {
            $ret = HTML_Javascript::_out(
                        'document.writeln("'.
                        HTML_Javascript_Convert::escapeString($str).'")'.
                        HTML_JAVASCRIPT_NL
                    );
        }
        return $ret;
    }

    // }}} write
    // {{{ writeLine

    /**
     * A wrapper for document.writeln with an addtional <br /> tag
     *
     * @access public
     * @param  string  $str the string to output
     * @param  boolean $var set to true if $str is a variable name
     * @return mixed   PEAR_Error if no script was started *
     *                 or the processed string
     */
    function writeLine($str, $var = false)
    {
        if ($var) {
            $ret = HTML_Javascript::_out(
                    'document.writeln('.$str.'+"<br />")'.HTML_JAVASCRIPT_NL
                    );
        } else {
            $ret = HTML_Javascript::_out(
                        'document.writeln("'.
                        HTML_Javascript_Convert::escapeString($str).
                        '"+"<br />")'.HTML_JAVASCRIPT_NL
                    );
        }
        return $ret;
    }

    // }}} writeLine
    // {{{ alert

    /**
     * A wrapper for alert
     *
     * @access public
     * @param  string    $str the string to output
     * @param  boolean   $var set to true if $str is a variable name
     * @return mixed     PEAR_Error if no script was started
     *                   or the processed string
     */
    function alert($str, $var = false)
    {
        $alert  = 'alert(';
        $alert  .= $var?
                    $str:
                    '"' . HTML_Javascript_Convert::escapeString($str) . '"';
        $ret = HTML_Javascript::_out($alert.')'.HTML_JAVASCRIPT_NL);
        return $ret;
    }

    // {{{ alert
    // {{{ confirm

    /**
     * Create a box with yes and no buttons.
     * In futur releases, the 1st arg will change, $str will always be the 1st
     * argument, $assign the 2nd.
     *
     * @param  string $assign   the JS variable to assign the confirmation box to
     * @param  string $str      the string that will appear in the confirmation box
     * @param  bool   $var      whether $str is a JS var or not
     * @return string the processed string
     */
    function confirm($assign, $str, $var = false)
    {
        if($var) {
            $confirm = 'confirm(' . $str . ')' . HTML_JAVASCRIPT_NL;
        } else {
            $confirm = 'confirm("' .
                HTML_Javascript_Convert::escapeString($str) . '")' .
                HTML_JAVASCRIPT_NL;
        }
        $ret = HTML_Javascript::_out($assign . ' = ' . $confirm);
        return $ret;
    }

    // }}} confirm
    // {{{ prompt

    /**
     * Open a propmt (input box)
     *
     * @param  string $str     the string that will appear in the prompt
     * @param  string $assign  the JS var that the input will be assigned to
     * @param  string $default the default value
     * @param  string $var     wether $str is a JS var or not
     * @return mixed  PEAR_Error or the processed string
     */
    function prompt($str, $assign, $default = '', $var = false)
    {
        if ($var) {
            $prompt = 'prompt('.$str.', "'.$default.')"'.HTML_JAVASCRIPT_NL;
        } else {

            $prompt = 'prompt("'.
                        HTML_Javascript_Convert::escapeString($str).
                        '", "'.$default.
                        '")'.HTML_JAVASCRIPT_NL;
        }
        $ret = HTML_Javascript::_out($assign .' = ' . $prompt);
        return $ret;
    }

    // }}} prompt
    // {{{ popup

    /**
     * A method for easy generation of popup windows
     *
     * @param  string $assign   the JS var to assign the window to
     * @param  string $file     the file that will appear in the new window
     * @param  string $title    the title of the new window
     * @param  int    $width    the width of the window
     * @param  int    $height   the height of the window
     * @param  mixed  $attr     an array containing the attributes for the new
     *                          window, each cell can contain either the ints 1/0
     *                          or the strings 'yes'/'no'.
     *                          The order of attributes:
     *                          resizable, scrollbars, menubar, toolbar,
     *                          status, location.
     *                          Can be also a boolean, and then all the attributes
     *                          are set to yes or no, according to the boolean value.
     * @param  int   $top       the distance from the top, in pixels.
     * @param  int   $left      the distance from the left, in pixels.
     * @return mixed PEAR_Error on error or the processed string.
     */
    function popup(
        $assign, $file, $title, $width, $height, $attr, $top = 300, $left = 300
    )
    {
        if(!is_array($attr)) {
            if(!is_bool($attr)) {
                PEAR::raiseError('$attr should be either an array or a boolean');
            } else {
                if($attr) {
                    $attr = array('yes', 'yes', 'yes', 'yes', 'yes', 'yes', $top, $left);
                } else {
                    $attr = array('no', 'no', 'no', 'no', 'no', 'no', $top, $height);
                }
            }
        }
        $ret = HTML_Javascript::_out(
                    $assign .
                    "= window.open(".
                    "\"$file\", \"$title\",".
                    " \"width=$width, height=$height,".
                    "resizable=$attr[0], scrollbars=$attr[1],".
                    " menubar=$attr[2], toolbar=$attr[3], status=$attr[4],".
                    " location=$attr[5], top=$attr[6], left=$attr[7]\")".
                    HTML_JAVASCRIPT_NL);
        return $ret;
    }

    // }}} popup
    // {{{ popupWrite

    /**
     * Creates a new popup window containing a string. Inside the popup windows
     * you can access the opener window with the opener var.
     *
     * @param  string $assign   the JS variable to assign the window to
     * @param  string $str      the string that will appear in the new window
     *                          (HTML tags would be parsed by the browser, of course)
     * @param  string $title    the title of the window
     * @param  int    $width    the width of the window
     * @param  int    $height   the height of the window
     * @param  mixed  $attr     see popup()
     * @param  int    $top      distance from the top (in pixels
     * @param  int    $left     distance from the left (in pixels)
     * @see    popup()
     * @return the processed string
     */
    function popupWrite(
        $assign, $str, $title, $width, $height, $attr, $top = 300, $left = 300
    )
    {
        static  $cnt_popup;
        $str        = HTML_Javascript_Convert::escapeString($str);
        $assign     = strlen($assign)==0?'pearpopup'.$cnt_popup++:$assign;

        if($attr) {
            $attr = array('yes', 'yes', 'yes', 'yes', 'yes', 'yes', $top, $left);
        } else {
            $attr = array('no', 'no', 'no', 'no', 'no', 'no', $top, $height);
        }

        $windows = $assign . "= window.open(\"\",".
                                " \"$title\",".
                                " \"width=$width, height=$height,".
                                " resizable=$attr[0], scrollbars=$attr[1],".
                                " menubar=$attr[2], toolbar=$attr[3],".
                                " status=$attr[4], location=$attr[5],".
                                " top=$attr[6], left=$attr[7]\")".HTML_JAVASCRIPT_NL;

        $windows    .= "
                        if ($assign){
                            $assign.focus();
                            $assign.document.open();
                            $assign.document.write('$str');
                            $assign.document.close();
                            if ($assign.opener == null) $assign.opener = self;
                        }
                      ";

        $ret = HTML_Javascript::_out($windows);
        return $ret;
    }

    // }}} popupWrite
}
?>