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feedizer-php/htdocs/libraries/formsgeneration/form_ajax_submit.php
Fanir 1cc4bf3572 initial commit
2015-11-13 23:51:46 +01:00

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