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90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
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/*
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File: ScrapCoercion.h
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Contains: Process Mgr scrap coercion module header file. Scrap coercion is the
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means by which the clipboard (scrap) is kept intact when switching
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foreground applications.
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Written by: Guido Goldinini
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Copyright: <EFBFBD> 1986-1991 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<3> 12/17/90 DFH Rename CheckForCutCopy to CheckForCutCopyMenuKey.
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<2> 12/15/90 DFH Fix prototype for src_scrap_setup. Added pScrapOwner.
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<0> x/xx/86 PYG New Today.
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*/
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#ifndef __SCRAPCOERCION__
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#define __SCRAPCOERCION__
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#ifndef __EVENTS__
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#include <Events.h>
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#endif
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/* Information we keep about the SCRAPHANDLE */
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typedef struct MyScrapInfo
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{
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long size; /* size of scrap in bytes */
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Handle memHandle; /* handle to scrap in mem or 0 */
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Boolean orphanedScrap; /* whether to dump memHandle after coercion */
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StringPtr fileName; /* file name if on disk */
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PEntryPtr pScrapOwner; /* process from whence this info sprang */
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} MyScrapInfo;
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/* Values for global CoercionState */
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#define CS_DONE (0)
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#define CS_GENERATE_DEACTIVATE1 (1)
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#define CS_GENERATE_DEACTIVATE2 (2)
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#define CS_GENERATE_NULLS_THEN_CMD_V (3)
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#define CS_MOVE_SCRAP (4)
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#define CS_GENERATE_NULLS_THEN_CMD_C (5)
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#define CS_CLICK_IN_WINDOW (6)
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#define CS_TAKE_DOWN_WINDOW (7)
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#define CS_PRESUSPEND_DEACTIVATE (8)
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#define CS_SUSPEND (9)
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#define CS_RESUME (10)
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#define CS_EXITING (11)
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#define CS_ENTERING (12)
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#define CS_INIT (13)
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#define CS_EATMOUSE (14)
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/* Older applications (i.e. ones that have no SIZE resource, or whose SIZE resource does
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* not say acceptSuspendResumeEvents and doesActivateOnFGSwitch), must be fooled into
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* a) activating or deactivating their front window, and b) posting their scrap. We do
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* it by pretending like a DA came up and the user pasted (suspend) or copied (resume).
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* NOTE: Somewhat strangely, this fake DA window stays in the application's WINDOWLIST
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* all the while the application is in the background. Have not figured out whether
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* this serves a purpose other than to prevent an additional NewWindow when bringing the
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* application to the front again.
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*/
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#define SCRAP_COERCION_FAKE_DA_WINDOW_ID ((short) 0x8001)
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/* Limits to state change efforts in scrap coercion */
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#define CLICK_DA_WIND_TIMEOUT_INIT (4)
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#define EAT_MOUSE_TIMEOUT (5)
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#define NULL_TIMEOUT_CUTOFF (4)
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#define NULL_TIMEOUT_INIT (7)
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/* Values for message field in suspend or resume event records */
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#define SUSPRES_MESSAGE (suspendResumeMessage << 24)
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#define SUSPEND_MESSAGE (SUSPRES_MESSAGE+convertClipboardFlag)
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#define RESUME_MESSAGE (SUSPRES_MESSAGE+resumeFlag)
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/* Internal function prototypes */
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void AddToFrontProcessQueue(PEntryPtr);
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PEntryPtr PopFrontProcessQueue(void);
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void RemoveFromFrontProcessQueue(PEntryPtr);
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void StartForegroundSwitch(PEntryPtr);
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short Coercion_State_Engine(unsigned short, EventRecord *, Ptr, Boolean);
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void src_scrap_setup(void);
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void PutUpFakeWindow(void);
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void TakeDownFakeWindow(void);
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void CheckForCutCopyMenuKey(unsigned char, short *);
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void CheckForCutCopySysEditCmd(short, short *);
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void OrphanScrapIntoPartition(void);
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#endif __SCRAPCOERCION__
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