513 lines
20 KiB
PHP
513 lines
20 KiB
PHP
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<?php
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/*
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*
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* @(#) $Id: form_ajax_submit.php,v 1.38 2011/03/17 09:58:34 mlemos Exp $
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*
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*/
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class form_ajax_submit_class extends form_custom_class
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{
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var $timeout = 60.000;
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var $poll_interval = 10;
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var $feedback_element = '';
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var $submit_feedback = '';
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var $complete_feedback;
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var $timeout_feedback = '';
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var $target_input = '';
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var $sub_form = '';
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var $debug_console = '';
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var $response_header='';
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var $connections=array(
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"ONCOMPLETE"=>array(),
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"ONSUBMITTED"=>array(),
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"ONTIMEOUT"=>array()
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);
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var $events=array(
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"ONTIMEOUT"=>"alert('The communication with the server has timed out.');"
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);
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var $debug_console_template='<fieldset style="width: 80ex; margin: auto">
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<legend><b>Debug console</b></legend>
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<div id="{ELEMENT}" style="background-color: black; color: white; padding: 4px; font-family: monospace; height: 10em; overflow: auto"></div>
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</fieldset>';
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var $sub_form_parameter="___sub_form";
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var $submit_form = '';
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var $actions=array();
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var $action_header_sent = 0;
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var $start_script_sent = 0;
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var $sending_ajax_response = 0;
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Function AddInput(&$form, $arguments)
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{
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if(IsSet($arguments["Timeout"]))
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{
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$timeout=doubleval($arguments["Timeout"]);
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if(strcmp($arguments["Timeout"], $timeout)
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|| $timeout<0)
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return("it was not specified a valid timeout value");
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$this->timeout = $timeout;
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}
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if(IsSet($arguments["ONTIMEOUT"]))
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$this->events["ONTIMEOUT"] = $arguments["ONTIMEOUT"];
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if(IsSet($arguments["ONCOMPLETE"]))
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$this->events["ONCOMPLETE"] = $arguments["ONCOMPLETE"];
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if(IsSet($arguments["ONSUBMITTED"]))
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$this->events["ONSUBMITTED"] = $arguments["ONSUBMITTED"];
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if(IsSet($arguments["FeedbackElement"]))
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{
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if(strlen($arguments["FeedbackElement"])==0)
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return("it was not specified a valid feedback element identifier");
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$this->feedback_element = $arguments["FeedbackElement"];
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if(IsSet($arguments["SubmitFeedback"]))
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$this->submit_feedback = $arguments["SubmitFeedback"];
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if(IsSet($arguments["TimeoutFeedback"]))
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$this->timeout_feedback = $arguments["TimeoutFeedback"];
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if(IsSet($arguments["CompleteFeedback"]))
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$this->complete_feedback = $arguments["CompleteFeedback"];
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}
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if(IsSet($arguments["TargetInput"]))
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{
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if(strlen($arguments["TargetInput"])==0)
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return("it was not specified a valid target input identifier");
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$this->target_input = $arguments["TargetInput"];
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}
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if(IsSet($arguments["DebugConsole"]))
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{
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if(strlen($arguments["DebugConsole"])==0)
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return("it was not specified a valid debug console identifier");
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$this->debug_console = $arguments["DebugConsole"];
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}
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if(IsSet($arguments["ResponseHeader"]))
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{
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if(strlen($arguments["ResponseHeader"])==0)
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return("it was not specified a valid response header");
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$this->response_header = $arguments["ResponseHeader"];
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}
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$this->submit_form = $this->GenerateInputID($form, $this->input, "sf");
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return("");
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}
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Function SetInputProperty(&$form, $property, $value)
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{
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switch($property)
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{
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case "FeedbackElement":
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if(strlen($value)==0)
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return("it was not specified a valid feedback element identifier");
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$this->feedback_element = $value;
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break;
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case "Feedback":
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if(strlen($this->feedback_element)==0)
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return("the feedback element identifier is not set");
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if(!$this->sending_ajax_response)
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return("it is only possible to update the feedback element when the AJAX response is being sent");
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$this->actions[]=array(
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"Action"=>"ReplaceContent",
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"Container"=>$this->feedback_element,
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"Content"=>$value
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);
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if(strlen($error = $this->FlushActions($form, 1)))
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return($error);
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break;
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default:
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return($this->DefaultSetInputProperty($form, $property, $value));
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}
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return("");
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}
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Function AddInputPart(&$form)
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{
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if(strcmp(strtolower($form->METHOD),"post"))
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return("currently the AJAX submit input only supports forms submitted with the POST method");
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$eol=$form->end_of_line;
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$b="";
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$javascript="<script type=\"text/javascript\" defer=\"defer\">".$eol."<!--\n";
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$javascript.="var ".$this->submit_form."_s=false;".$eol;
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$javascript.="var ".$this->submit_form."_r=false;".$eol;
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$javascript.="var ".$this->submit_form."_t=0;".$eol;
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$javascript.="var ".$this->submit_form."_o=".intval($this->timeout*1000).";".$eol;
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$javascript.="var ".$this->submit_form."_f;".$eol;
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$javascript.="function ".$this->submit_form."()".$b."{".$b;
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$javascript.="if(!".$this->submit_form."_s)".$b."return;".$b;
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$javascript.="if(".$this->submit_form."_r)".$b."{".$b."if((i=document.getElementById(".$form->EncodeJavascriptString($this->submit_form."_i").")))".$b."i.src='';".$b.$this->submit_form."_s=false;".$b.$this->GetEventActions($form, $this->submit_form."_f", "ONCOMPLETE").$b."return;".$b."}".$b;
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$javascript.=$this->submit_form."_t+=".$this->poll_interval.";".$b;
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$javascript.="if(".$this->submit_form."_t>=".$this->submit_form."_o)".$b."{".$b.$this->submit_form."_s=false;".$b."if((i=document.getElementById(".$form->EncodeJavascriptString($this->submit_form."_i").")))".$b."i.src='';".$b.(strlen($this->feedback_element) ? "if((fb=document.getElementById(".$form->EncodeJavascriptString($this->feedback_element)."))) { fb.innerHTML=".$form->EncodeJavascriptString($this->timeout_feedback).';} ;'.$b :'').$this->GetEventActions($form, $this->submit_form."_f", "ONTIMEOUT").$b."return;".$b."}".$b;
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$javascript.="setTimeout('".$this->submit_form."()',".$this->poll_interval.");".$b;
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$javascript.="}".$eol."// -->".$eol."</script>";
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$javascript.="<iframe id=\"".$this->submit_form."_i\" name=\"".$this->submit_form."_i\" width=\"0\" height=\"0\" frameborder=\"0\"></iframe>";
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return($form->AddDataPart($javascript));
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}
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Function GetJavascriptConnectionAction(&$form, $form_object, $from, $event, $action, &$context, &$javascript)
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{
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switch($action)
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{
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case "Submit":
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$parameters=array();
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if(IsSet($context["SubForm"]))
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{
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if(strlen($sub_form=$form->GetJavascriptSetFormProperty($form_object, "SubForm", $form->EncodeJavascriptString($context["SubForm"])))==0)
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return("could not set the AJAX form submit SubForm");
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$sub_form.="; ";
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$parameters[$this->sub_form_parameter]=$context["SubForm"];
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}
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else
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$sub_form='';
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if(strlen($error=$form->GetInputEventURL($this->input,"submit",$parameters,$form_action)))
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return($error);
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$javascript="if(".$this->submit_form."_s) return false; ".$this->submit_form."_r=false; ".$this->submit_form."_f=f=".$form_object.";";
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if(IsSet($context["SetInputValue"]))
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{
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for($i=0, Reset($context["SetInputValue"]); $i<count($context["SetInputValue"]); Next($context["SetInputValue"]), $i++)
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{
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$input=Key($context["SetInputValue"]);
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if(strlen($j = $form->GetJavascriptSetInputProperty("f", $input, "VALUE", $form->EncodeJavascriptString($context["SetInputValue"][$input])))==0)
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{
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$javascript="";
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return("could not set the value of the input \"".$input."\"");
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}
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$javascript.=" ".$j;
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}
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}
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$validate = (!IsSet($context['Validate']) || $context['Validate']);
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$javascript.=" ".$sub_form.($validate ? "if(f.onsubmit && !f.onsubmit()) return false; " : "")."t=f.target; a=f.action; f.target='".$this->submit_form."_i'; f.action=".$form->EncodeJavascriptString($form_action)."; f.submit(); f.action=a; f.target=t; ".$this->submit_form."_t=0; ".$this->submit_form."_s=true; ".$this->submit_form."(); ".(strlen($this->feedback_element) ? "if((fb=document.getElementById(".$form->EncodeJavascriptString($this->feedback_element)."))) { fb.innerHTML=".$form->EncodeJavascriptString($this->submit_feedback).';} ;' :'').($s=$this->GetEventActions($form, "f", "ONSUBMITTED")).'return false';
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break;
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case "Load":
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if(IsSet($context["Parameters"]))
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$parameters=$context["Parameters"];
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else
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$parameters=array();
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if(IsSet($context['RandomParameter']))
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$parameters[$context['RandomParameter']]=uniqid($this->input);
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if(strlen($error=$form->GetInputEventURL($this->input,"load",$parameters,$form_action)))
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return($error);
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$javascript="if(".$this->submit_form."_s) return false; ".$this->submit_form."_r=false; ".$this->submit_form."_f=f=".$form_object.";";
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$javascript.=" if((i=document.getElementById(".$form->EncodeJavascriptString($this->submit_form."_i")."))) i.src=".$form->EncodeJavascriptString($form_action)."; ".$this->submit_form."_t=0; ".$this->submit_form."_s=true; ".$this->submit_form."(); ".(strlen($this->feedback_element) ? "if((fb=document.getElementById(".$form->EncodeJavascriptString($this->feedback_element)."))) { fb.innerHTML=".$form->EncodeJavascriptString($this->submit_feedback).';} ;' :'').'return false';
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break;
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default:
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return($this->DefaultGetJavascriptConnectionAction($form, $form_object, $from, $event, $action, $context, $javascript));
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}
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return("");
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}
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Function ValidateInput(&$form)
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{
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return("");
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}
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Function SetupMessage(&$message, $event)
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{
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$message=array(
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"Event"=>$event,
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"From"=>$this->input,
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"ReplyTo"=>$this->input,
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"More"=>0,
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"Window"=>"_p",
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"Document"=>"_d",
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"Form"=>"_p.".$this->submit_form."_f",
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);
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if(strlen($this->target_input))
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$message["Target"]=$this->target_input;
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if(strlen($this->sub_form))
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$message["SubForm"]=$this->sub_form;
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}
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Function HandleEvent(&$form, $event, $parameters, &$processed)
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{
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global $HTTP_GET_VARS;
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switch($event)
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{
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case "submit":
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if(IsSet($_GET[$this->sub_form_parameter]))
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$this->sub_form=$_GET[$this->sub_form_parameter];
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elseif(IsSet($HTTP_GET_VARS[$this->sub_form_parameter]))
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$this->sub_form=$HTTP_GET_VARS[$this->sub_form_parameter];
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case "load":
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$this->sending_ajax_response = 1;
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$this->SetupMessage($message, $event);
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if(strlen($error=$form->PostMessage($message)))
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return($error);
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$processed=0;
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break;
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default:
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return($this->DefaultHandleEvent($form,$event,$parameters,$processed));
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}
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return("");
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}
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Function Output($output)
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{
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echo $output;
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}
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Function DebugOutput(&$form, $output)
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{
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if(strlen($this->debug_console))
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{
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$content=$form->EncodeJavascriptString(HtmlSpecialChars($output)."<br />\n");
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$this->Output("if(_g\n&& (_de=_d.getElementById(".$form->EncodeJavascriptString($this->debug_console.'_output').")))\n");
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$this->Output("{\n _de.innerHTML+=".$content.";\n if('undefined' != typeof _de.scrollTop)\n _de.scrollTop=_de.scrollHeight;\n}\n");
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flush();
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}
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}
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Function SendStartScript()
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{
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if(!$this->start_script_sent)
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{
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$this->Output("<script type=\"text/javascript\"><!--\nif(parent.".$this->submit_form."_s)\n{\n");
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$this->start_script_sent = 1;
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}
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}
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Function SendEndScript(&$form, $flush)
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{
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if($this->start_script_sent)
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{
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$this->Output("_p.".$this->submit_form."_t=0;\n");
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$this->Output("}\n// --></script>\n");
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$this->start_script_sent = 0;
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if($flush)
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flush();
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}
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}
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Function SendActionHeader(&$form)
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{
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$start=!$this->action_header_sent;
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if($start)
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{
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Header("Content-Type: text/html");
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if(strlen($this->response_header))
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Header($this->response_header);
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$this->Output("<html><head><title>submit</title></head><body>");
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$this->action_header_sent = 1;
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}
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$this->SendStartScript();
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$this->Output("_p=parent;\n_d=_p.document;\n_g=_d.getElementById;\n");
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if($start
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&& strlen($this->debug_console))
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{
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$element=$this->debug_console.'_output';
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$content=$form->EncodeJavascriptString(str_replace('{ELEMENT}', $element, $this->debug_console_template));
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$this->Output("if(_g\n&& (_de=_d.getElementById(".$form->EncodeJavascriptString($this->debug_console).")))\n");
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$this->Output(" _de.innerHTML=".$content.";\n");
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flush();
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}
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}
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Function SendAction(&$form, $action)
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{
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switch($this->actions[$action]["Action"])
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{
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case "AppendContent":
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case "PrependContent":
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case "ReplaceContent":
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if(!IsSet($this->actions[$action]["Container"]))
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return("it was not specified the container element to replace the content");
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if(!IsSet($this->actions[$action]["Content"]))
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return("it was not specified the content to the content in the container");
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$this->Output("if(_g\n&& (_e=_d.getElementById(".$form->EncodeJavascriptString($this->actions[$action]["Container"]).")))\n");
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$content=$form->EncodeJavascriptString($this->actions[$action]["Content"]);
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switch($this->actions[$action]["Action"])
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{
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case "AppendContent":
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if(strlen($this->debug_console))
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$this->DebugOutput($form, 'AppendContent(Container='.$this->actions[$action]["Container"].')');
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$this->Output(" _e.innerHTML+=".$content.";\n");
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break;
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case "PrependContent":
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|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'PrependContent(Container='.$this->actions[$action]["Container"].')');
|
||
|
|
$this->Output(" _e.innerHTML=".$content."+_e.innerHTML;\n");
|
||
|
|
break;
|
||
|
|
case "ReplaceContent":
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'ReplaceContent(Container='.$this->actions[$action]["Container"].')');
|
||
|
|
$this->Output(" _e.innerHTML=".$content.";\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case "SetValue":
|
||
|
|
if(!IsSet($this->actions[$action]["Element"]))
|
||
|
|
return("it was not specified the element to set the value");
|
||
|
|
if(!IsSet($this->actions[$action]["Property"]))
|
||
|
|
return("it was not specified the property of the element to set");
|
||
|
|
if(!IsSet($this->actions[$action]["Value"]))
|
||
|
|
return("it was not specified the property value of the element to set");
|
||
|
|
switch(IsSet($this->actions[$action]["Type"]) ? $this->actions[$action]["Type"] : "string")
|
||
|
|
{
|
||
|
|
case "string":
|
||
|
|
$value=$form->EncodeJavascriptString($this->actions[$action]["Value"]);
|
||
|
|
break;
|
||
|
|
case "number":
|
||
|
|
case "integer":
|
||
|
|
case "float":
|
||
|
|
case "boolean":
|
||
|
|
case "opaque":
|
||
|
|
$value=$this->actions[$action]["Value"];
|
||
|
|
break;
|
||
|
|
case "null":
|
||
|
|
case "undefined":
|
||
|
|
$value=$this->actions[$action]["Type"];
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
return($this->actions[$action]["Value"]." is not a valid element property value type");
|
||
|
|
}
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'SetValue(Element='.$this->actions[$action]["Element"].', Property='.$this->actions[$action]["Property"].', Value='.$value.')');
|
||
|
|
$this->Output("if(_g\n&& (_e=_d.getElementById(".$form->EncodeJavascriptString($this->actions[$action]["Element"]).")))\n_e.".$this->actions[$action]["Property"].'='.$value.";\n");
|
||
|
|
break;
|
||
|
|
case "Redirect":
|
||
|
|
if(!IsSet($this->actions[$action]["URL"])
|
||
|
|
|| strlen($this->actions[$action]["URL"])==0)
|
||
|
|
return("it was not specified the redirection URL");
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'Redirect(URL='.$this->actions[$action]["URL"].')');
|
||
|
|
$this->Output("_d.location=".$form->EncodeJavascriptString($this->actions[$action]["URL"])."\n");
|
||
|
|
break;
|
||
|
|
case "Wait":
|
||
|
|
if(!IsSet($this->actions[$action]["Time"])
|
||
|
|
|| doubleval($this->actions[$action]["Time"])==0.0)
|
||
|
|
return("it was not specified a valid wait time period");
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'Wait(Time='.$this->actions[$action]["Time"].')');
|
||
|
|
$this->SendEndScript($form, 1);
|
||
|
|
usleep($this->actions[$action]["Time"]*1000000);
|
||
|
|
$this->SendStartScript();
|
||
|
|
break;
|
||
|
|
case "Command":
|
||
|
|
if(!IsSet($this->actions[$action]["Command"]))
|
||
|
|
return("it was not specified the command to execute");
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'Command(Command='.$this->actions[$action]["Command"].')');
|
||
|
|
$this->Output($this->actions[$action]["Command"]);
|
||
|
|
break;
|
||
|
|
case "Connect":
|
||
|
|
$to=(IsSet($this->actions[$action]["To"]) ? $this->actions[$action]["To"] : "");
|
||
|
|
$connect_action=(IsSet($this->actions[$action]["ConnectAction"]) ? $this->actions[$action]["ConnectAction"] : "");
|
||
|
|
$context=(IsSet($this->actions[$action]["Context"]) ? $this->actions[$action]["Context"] : array());
|
||
|
|
if(strlen($error=$form->GetJavascriptConnectionAction(($this->sending_ajax_response ? '_p.' : '').$this->submit_form."_f", $this->input, $to, "", $connect_action, $context, $javascript)))
|
||
|
|
return($error);
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'Connect(To='.$to.', ConnectAction='.$connect_action.')');
|
||
|
|
$this->Output($javascript);
|
||
|
|
$this->Output("\n");
|
||
|
|
break;
|
||
|
|
|
||
|
|
case "SetInputValue":
|
||
|
|
if(!IsSet($this->actions[$action]["Input"]))
|
||
|
|
return("it was not specified the input to set the value");
|
||
|
|
if(!IsSet($this->actions[$action]["Value"]))
|
||
|
|
return("it was not specified the value of the input to set");
|
||
|
|
$input = $this->actions[$action]["Input"];
|
||
|
|
$value = $this->actions[$action]["Value"];
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'SetInputValue(Input='.$input.', Value='.$value.')');
|
||
|
|
$this->Output($form->GetJavascriptSetInputValue(($this->sending_ajax_response ? '_p.' : '').$this->submit_form."_f", $input, $value));
|
||
|
|
break;
|
||
|
|
|
||
|
|
case "SetInputProperty":
|
||
|
|
if(!IsSet($this->actions[$action]["Input"]))
|
||
|
|
return("it was not specified the input to set the value");
|
||
|
|
if(!IsSet($this->actions[$action]["Property"]))
|
||
|
|
return("it was not specified the property of the input to set");
|
||
|
|
if(!IsSet($this->actions[$action]["Value"]))
|
||
|
|
return("it was not specified the value of the input to set");
|
||
|
|
$input = $this->actions[$action]["Input"];
|
||
|
|
$property = $this->actions[$action]["Property"];
|
||
|
|
$value = $this->actions[$action]["Value"];
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, 'SetInputProperty(Input='.$input.', Property='.$property.', Value='.$value.')');
|
||
|
|
$this->Output($form->GetJavascriptSetInputProperty(($this->sending_ajax_response ? '_p.' : '').$this->submit_form."_f", $input, $property, $value));
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
$error = "AJAX action ".$this->actions[$action]["Action"]." is not supported";
|
||
|
|
if(strlen($this->debug_console))
|
||
|
|
$this->DebugOutput($form, $error);
|
||
|
|
return($error);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Function SendActionFooter(&$form, $end)
|
||
|
|
{
|
||
|
|
if($end)
|
||
|
|
{
|
||
|
|
if(strlen($this->feedback_element)
|
||
|
|
&& IsSet($this->complete_feedback))
|
||
|
|
$this->Output("if(_g\n&&\n(_fb=_d.getElementById(".$form->EncodeJavascriptString($this->feedback_element).")))\n{\n_fb.innerHTML=".$form->EncodeJavascriptString($this->complete_feedback).';'."\n".'}'."\n");
|
||
|
|
$this->Output("_p.".$this->submit_form."_r=true;\n");
|
||
|
|
}
|
||
|
|
$this->SendEndScript($form, !$end);
|
||
|
|
if($end)
|
||
|
|
{
|
||
|
|
$this->Output("</body></html>\n");
|
||
|
|
flush();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Function FlushActions(&$form, $more)
|
||
|
|
{
|
||
|
|
$this->SendActionHeader($form);
|
||
|
|
for($error = '', $action = 0; $action<count($this->actions); $action++)
|
||
|
|
{
|
||
|
|
if(strlen($error=$this->SendAction($form, $action)))
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
$this->actions=array();
|
||
|
|
$this->SendActionFooter($form, !$more);
|
||
|
|
return($error);
|
||
|
|
}
|
||
|
|
|
||
|
|
Function ReplyMessage(&$form, $message, &$processed)
|
||
|
|
{
|
||
|
|
if(!$this->sending_ajax_response)
|
||
|
|
return("the AJAX response is not being sent");
|
||
|
|
if(!IsSet($message["Event"])
|
||
|
|
|| (strcmp($message["Event"], "submit")
|
||
|
|
&& strcmp($message["Event"], "load")))
|
||
|
|
return("it was specified an invalid message event to reply");
|
||
|
|
if(IsSet($message["Actions"]))
|
||
|
|
{
|
||
|
|
for($new = 0; $new<count($message["Actions"]); $new++)
|
||
|
|
{
|
||
|
|
$this->actions[] = $message["Actions"][$new];
|
||
|
|
if(!strcmp($message["Actions"][$new]["Action"],"Wait"))
|
||
|
|
{
|
||
|
|
$this->SendActionHeader($form);
|
||
|
|
for($action = 0; $action<count($this->actions); $action++)
|
||
|
|
{
|
||
|
|
if(strlen($error=$this->SendAction($form, $action)))
|
||
|
|
return($error);
|
||
|
|
}
|
||
|
|
$this->actions=array();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
$more = (IsSet($message["More"]) && $message["More"]);
|
||
|
|
$immediate = (IsSet($message["Immediate"]) && $message["Immediate"]);
|
||
|
|
if($more)
|
||
|
|
{
|
||
|
|
$this->SetupMessage($next_message, $message["Event"]);
|
||
|
|
if(strlen($error=$form->PostMessage($next_message)))
|
||
|
|
return($error);
|
||
|
|
$processed = 0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$immediate = 1;
|
||
|
|
$processed = 1;
|
||
|
|
}
|
||
|
|
if($immediate
|
||
|
|
&& strlen($error = $this->FlushActions($form, $more)))
|
||
|
|
return($error);
|
||
|
|
if($processed)
|
||
|
|
$this->sending_ajax_response = 0;
|
||
|
|
return("");
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
?>
|