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#ifndef __ACTION_H__
#define __ACTION_H__
#include <Task.h>
#include <Handle.h>
#include <Variables.h>
#include <Exceptions.h>
#include <HtmlSkinner.h>
//! This is the basic HTTP action.
/*!
This pure virtual class contains the framework to build a basic HTTP action.
*/
class Action : public Base {
public:
//! The provided string should contain the url of that action.
/*!
If no URL is provided, one will be generated on the fly.
*/
Action(const String & url = "", HtmlSkinner * = 0);
virtual ~Action();
//! Will recursively resolve an URL, and return the corresponding action, or NULL if not found.
Action * Look4URL(const String &);
//! This pure virtual method has to be filled. It will be launched if the URL is called.
/*!
This method will be called when the URL gets invoked. The vars variable will contain the POST
or GET variables. The headers is a single list of the HTTP headers. And the out handle will
be dumped as the output to the brower.
*/
virtual Task * Do(Variables * vars, Variables * headers, Handle * out) = 0;
//! This helper will dump the basic HTML headers.
virtual void SendHead(Handle *);
//! This helper will dump the basic HTML footers.
virtual void SendFoot(Handle *);
//! This helper will display a button.
/*!
The button will have the caption provided, and will redirect to the provided url.
*/
virtual void ShowButton(Handle *, const String & caption = " Ok ", const String & url = "start");
//! This pure virtual method has to gives the page title. Will be used in SendHead.
virtual String GetTitle(void) = 0;
//! This returns the recorded URL for that action.
String GetURL(void);
//! Mark this action to be erased as soon as the Do method ends.
void CleanUp(void);
//! Skinner accessor.
HtmlSkinner * GetSkinner();
protected:
//! Mark this action as beeing accessed.
void Accessed(void);
private:
static Action * start;
Action * next, * prev;
String URL;
bool hastoclean, accessed;
HtmlSkinner * skin;
};
#endif
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