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	1	#ifndef PKGLIB_IPROGRESS_H
	2	#define PKGLIB_IPROGRESS_H
	3
	4	#include <apt-pkg/macros.h>
	5
	6	#include <string>
	7	#include <unistd.h>
	8	#include <signal.h>
	9	#include <vector>
	10
	11	namespace APT {
	12	namespace Progress {
	13
	14	class PackageManager;
	15	PackageManager* PackageManagerProgressFactory();
	16
	17	class PackageManager
	18	{
	19	private:
	20	/** \brief dpointer placeholder */
	21	void * const d;
	22
	23	protected:
	24	std::string progress_str;
	25	float percentage;
	26	int last_reported_progress;
	27
	28	public:
	29	PackageManager();
	30	virtual ~PackageManager();
	31
	32	/* Global Start/Stop */
	33	virtual void Start(int /child_pty/=-1) {};
	34	virtual void Stop() {};
	35
	36	/* When dpkg is invoked (may happen multiple times for each
	37	* install/remove block
	38	*/
	39	virtual void StartDpkg() {};
	40
	41	virtual pid_t fork() {return ::fork(); };
	42
	43	virtual void Pulse() {};
	44	virtual long GetPulseInterval() {
	45	return 50000000;
	46	};
	47
	48	virtual bool StatusChanged(std::string PackageName,
	49	unsigned int StepsDone,
	50	unsigned int TotalSteps,
	51	std::string HumanReadableAction);
	52	virtual void Error(std::string /PackageName/,
	53	unsigned int /StepsDone/,
	54	unsigned int /TotalSteps/,
	55	std::string /ErrorMessage/) {}
	56	virtual void ConffilePrompt(std::string /PackageName/,
	57	unsigned int /StepsDone/,
	58	unsigned int /TotalSteps/,
	59	std::string /ConfMessage/) {}
	60	};
	61
	62	class PackageManagerProgressFd : public PackageManager
	63	{
	64	void * const d;
	65	protected:
	66	int OutStatusFd;
	67	int StepsDone;
	68	int StepsTotal;
	69	void WriteToStatusFd(std::string msg);
	70
	71	public:
	72	explicit PackageManagerProgressFd(int progress_fd);
	73	virtual ~PackageManagerProgressFd();
	74
	75	virtual void StartDpkg() APT_OVERRIDE;
	76	virtual void Stop() APT_OVERRIDE;
	77
	78	virtual bool StatusChanged(std::string PackageName,
	79	unsigned int StepsDone,
	80	unsigned int TotalSteps,
	81	std::string HumanReadableAction) APT_OVERRIDE;
	82	virtual void Error(std::string PackageName,
	83	unsigned int StepsDone,
	84	unsigned int TotalSteps,
	85	std::string ErrorMessage) APT_OVERRIDE;
	86	virtual void ConffilePrompt(std::string PackageName,
	87	unsigned int StepsDone,
	88	unsigned int TotalSteps,
	89	std::string ConfMessage) APT_OVERRIDE;
	90
	91	};
	92
	93	class PackageManagerProgressDeb822Fd : public PackageManager
	94	{
	95	void * const d;
	96	protected:
	97	int OutStatusFd;
	98	int StepsDone;
	99	int StepsTotal;
	100	void WriteToStatusFd(std::string msg);
	101
	102	public:
	103	explicit PackageManagerProgressDeb822Fd(int progress_fd);
	104	virtual ~PackageManagerProgressDeb822Fd();
	105
	106	virtual void StartDpkg() APT_OVERRIDE;
	107	virtual void Stop() APT_OVERRIDE;
	108
	109	virtual bool StatusChanged(std::string PackageName,
	110	unsigned int StepsDone,
	111	unsigned int TotalSteps,
	112	std::string HumanReadableAction) APT_OVERRIDE;
	113	virtual void Error(std::string PackageName,
	114	unsigned int StepsDone,
	115	unsigned int TotalSteps,
	116	std::string ErrorMessage) APT_OVERRIDE;
	117	virtual void ConffilePrompt(std::string PackageName,
	118	unsigned int StepsDone,
	119	unsigned int TotalSteps,
	120	std::string ConfMessage) APT_OVERRIDE;
	121	};
	122
	123	class PackageManagerFancy : public PackageManager
	124	{
	125	void * const d;
	126	private:
	127	APT_HIDDEN static void staticSIGWINCH(int);
	128	static std::vector<PackageManagerFancy*> instances;
	129	APT_HIDDEN bool DrawStatusLine();
	130
	131	protected:
	132	void SetupTerminalScrollArea(int nr_rows);
	133	void HandleSIGWINCH(int);
	134
	135	typedef struct {
	136	int rows;
	137	int columns;
	138	} TermSize;
	139	TermSize GetTerminalSize();
	140
	141	sighandler_t old_SIGWINCH;
	142	int child_pty;
	143
	144	public:
	145	PackageManagerFancy();
	146	virtual ~PackageManagerFancy();
	147	virtual void Start(int child_pty=-1) APT_OVERRIDE;
	148	virtual void Stop() APT_OVERRIDE;
	149	virtual bool StatusChanged(std::string PackageName,
	150	unsigned int StepsDone,
	151	unsigned int TotalSteps,
	152	std::string HumanReadableAction) APT_OVERRIDE;
	153
	154	// return a progress bar of the given size for the given progress
	155	// percent between 0.0 and 1.0 in the form "[####...]"
	156	static std::string GetTextProgressStr(float percent, int OutputSize);
	157	};
	158
	159	class PackageManagerText : public PackageManager
	160	{
	161	void * const d;
	162	public:
	163	virtual bool StatusChanged(std::string PackageName,
	164	unsigned int StepsDone,
	165	unsigned int TotalSteps,
	166	std::string HumanReadableAction) APT_OVERRIDE;
	167
	168	PackageManagerText();
	169	virtual ~PackageManagerText();
	170	};
	171
	172
	173	} // namespace Progress
	174	} // namespace APT
	175
	176	#endif