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path: root/lib/system/deepcopy.nim
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* warn about inconsistent spacing around binary operators; fixes #7582Andreas Rumpf2018-05-051-5/+5
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* first steps of making 'opt' a first class type for NimAndreas Rumpf2017-09-251-1/+1
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* closures have an object type field so that we can perform correct deepCopy() ↵Andreas Rumpf2017-07-221-3/+3
| | | | for the BoehmGC target
* Fix compilation for 16 bit targets (#5286)Jeff Ciesielski2017-01-261-1/+1
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* system.deepCopy should show old behaviourAndreas Rumpf2016-11-281-1/+6
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* deepcopy fixAndreas Rumpf2016-11-261-31/+75
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* reverted deepcopy fix for nowAndreas Rumpf2016-11-241-75/+31
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* fixes deepcopy regressionAndreas Rumpf2016-11-181-2/+4
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* deepCopy: proper sharing of refsAndreas Rumpf2016-11-171-31/+73
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* fixes #4776Andreas Rumpf2016-09-241-12/+7
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* fixes #4340Andreas Rumpf2016-07-071-0/+2
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* fix types of ansi_c/sysio to more closely match C ABIJacek Sieka2016-06-051-1/+1
| | | | | also fixes some instances of using C library functions when there are nim alternatives available
* lib: Trim .nim files trailing whitespaceAdam Strzelecki2015-09-041-5/+5
| | | | via OSX: find . -name '*.nim' -exec sed -i '' -E 's/[[:space:]]+$//' {} +
* sizeof(char) is always 1def2015-03-041-1/+1
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* Also deepCopy strings only up to their length, not capacitydef2015-03-041-1/+1
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* Happy new year!Guillaume Gelin2015-01-061-1/+1
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* introduced 'benign' pragmaAraq2014-10-251-2/+2
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* deepCopy is instantiated when its corresponding type is instantiatedAraq2014-09-261-9/+9
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* system files use new identifiersAraq2014-08-231-12/+12
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* the big renamefest: first stepsAraq2014-08-221-1/+1
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* distinguish between 'defined' and 'declared'Araq2014-08-111-1/+1
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* fixes #1456Araq2014-08-081-1/+1
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* fixes #1456Araq2014-08-081-11/+18
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* some bugfixes for 'deepCopy'Araq2014-08-061-10/+23
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* progress on deepCopyAraq2014-08-011-0/+121
*/ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
 * See LICENSE file for license details.
 */
#include "dwm.h"
#include <stdlib.h>
#include <string.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>

/* static functions */

static void
detachstack(Client *c) {
	Client **tc;
	for(tc=&stack; *tc && *tc != c; tc=&(*tc)->snext);
	*tc = c->snext;
}

static void
grabbuttons(Client *c, Bool focused) {
	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);

	if(focused) {
		XGrabButton(dpy, Button1, MODKEY, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button1, MODKEY | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button1, MODKEY | numlockmask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button1, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);

		XGrabButton(dpy, Button2, MODKEY, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button2, MODKEY | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button2, MODKEY | numlockmask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button2, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);

		XGrabButton(dpy, Button3, MODKEY, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button3, MODKEY | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button3, MODKEY | numlockmask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
		XGrabButton(dpy, Button3, MODKEY | numlockmask | LockMask, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
	}
	else
		XGrabButton(dpy, AnyButton, AnyModifier, c->win, False, BUTTONMASK,
				GrabModeAsync, GrabModeSync, None, None);
}

static int
xerrordummy(Display *dsply, XErrorEvent *ee) {
	return 0;
}

/* extern functions */

void
ban(Client *c) {
	XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
	XMoveWindow(dpy, c->twin, c->tx + 2 * sw, c->ty);
}

void
configure(Client *c) {
	XEvent synev;

	synev.type = ConfigureNotify;
	synev.xconfigure.display = dpy;
	synev.xconfigure.event = c->win;
	synev.xconfigure.window = c->win;
	synev.xconfigure.x = c->x;
	synev.xconfigure.y = c->y;
	synev.xconfigure.width = c->w;
	synev.xconfigure.height = c->h;
	synev.xconfigure.border_width = c->border;
	synev.xconfigure.above = None;
	XSendEvent(dpy, c->win, True, NoEventMask, &synev);
}

void
focus(Client *c) {
	Client *old;

	if(!issel || (c && !isvisible(c)))
		return;
	if(!sel)
		sel = c;
	else if(sel != c) {
		old = sel;
		sel = c;
		if(old) {
			grabbuttons(old, False);
			drawtitle(old);
		}
	}
	if(c) {
		detachstack(c);
		c->snext = stack;
		stack = c;
		grabbuttons(c, True);
		drawtitle(c);
		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
	}
	else
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
}

Client *
getclient(Window w) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->win == w)
			return c;
	return NULL;
}

Client *
getctitle(Window w) {
	Client *c;

	for(c = clients; c; c = c->next)
		if(c->twin == w)
			return c;
	return NULL;
}

void
gravitate(Client *c, Bool invert) {
	int dx = 0, dy = 0;

	switch(c->grav) {
	default:
		break;
	case StaticGravity:
	case NorthWestGravity:
	case NorthGravity:
	case NorthEastGravity:
		dy = c->border;
		break;
	case EastGravity:
	case CenterGravity:
	case WestGravity:
		dy = -(c->h / 2) + c->border;
		break;
	case SouthEastGravity:
	case SouthGravity:
	case SouthWestGravity:
		dy = -(c->h);
		break;
	}
	switch (c->grav) {
	default:
		break;
	case StaticGravity:
	case NorthWestGravity:
	case WestGravity:
	case SouthWestGravity:
		dx = c->border;
		break;
	case NorthGravity:
	case CenterGravity:
	case SouthGravity:
		dx = -(c->w / 2) + c->border;
		break;
	case NorthEastGravity:
	case EastGravity:
	case SouthEastGravity:
		dx = -(c->w + c->border);
		break;
	}
	if(invert) {
		dx = -dx;
		dy = -dy;
	}
	c->x += dx;
	c->y += dy;
}

void
killclient(Arg *arg) {
	if(!sel)
		return;
	if(sel->proto & PROTODELWIN)
		sendevent(sel->win, wmatom[WMProtocols], wmatom[WMDelete]);
	else
		XKillClient(dpy, sel->win);
}

void
manage(Window w, XWindowAttributes *wa) {
	Client *c;
	Window trans;
	XSetWindowAttributes twa;

	c = emallocz(sizeof(Client));
	c->tags = emallocz(ntags * sizeof(Bool));
	c->win = w;
	c->border = 0;
	c->x = c->tx = wa->x;
	c->y = c->ty = wa->y;
	c->w = c->tw = wa->width;
	c->h = wa->height;
	c->th = bh;
	updatesize(c);
	if(c->x + c->w + 2 * BORDERPX > sw)
		c->x = sw - c->w - 2 * BORDERPX;
	if(c->x < sx)
		c->x = sx;
	if(c->y + c->h + 2 * BORDERPX > sh)
		c->y = sh - c->h - 2 * BORDERPX;
	if(c->h != sh && c->y < bh)
		c->y = bh;
	c->proto = getproto(c->win);
	XSelectInput(dpy, c->win,
		StructureNotifyMask | PropertyChangeMask | EnterWindowMask);
	XGetTransientForHint(dpy, c->win, &trans);
	twa.override_redirect = 1;
	twa.background_pixmap = ParentRelative;
	twa.event_mask = ExposureMask | EnterWindowMask;
	c->twin = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
			0, DefaultDepth(dpy, screen), CopyFromParent,
			DefaultVisual(dpy, screen),
			CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
	grabbuttons(c, False);
	updatetitle(c);
	settags(c, getclient(trans));
	if(!c->isfloat)
		c->isfloat = trans || c->isfixed;
	resizetitle(c);
	if(clients)
		clients->prev = c;
	c->next = clients;
	c->snext = stack;
	stack = clients = c;
	ban(c);
	XMapWindow(dpy, c->win);
	XMapWindow(dpy, c->twin);
	if(isvisible(c))
		focus(c);
	arrange();
}

void
resize(Client *c, Bool sizehints, Corner sticky) {
	int bottom = c->y + c->h;
	int right = c->x + c->w;
	XWindowChanges wc;

	if(sizehints) {
		if(c->incw)
			c->w -= (c->w - c->basew) % c->incw;
		if(c->inch)
			c->h -= (c->h - c->baseh) % c->inch;
		if(c->minw && c->w < c->minw)
			c->w = c->minw;
		if(c->minh && c->h < c->minh)
			c->h = c->minh;
		if(c->maxw && c->w > c->maxw)
			c->w = c->maxw;
		if(c->maxh && c->h > c->maxh)
			c->h = c->maxh;
	}
	if(sticky == TopRight || sticky == BotRight)
		c->x = right - c->w;
	if(sticky == BotLeft || sticky == BotRight)
		c->y = bottom - c->h;
	/* offscreen appearance fixes */
	if(c->x + c->w < sx)
		c->x = sx;
	if(c->y + c->h < bh)
		c->y = bh;
	if(c->x > sw)
		c->x = sw - c->w;
	if(c->y > sh)
		c->y = sh - c->h;
	resizetitle(c);
	wc.x = c->x;
	wc.y = c->y;
	wc.width = c->w;
	wc.height = c->h;
	if(c->w == sw && c->h == sh)
		wc.border_width = 0;
	else
		wc.border_width = BORDERPX;
	XConfigureWindow(dpy, c->win, CWX | CWY | CWWidth | CWHeight | CWBorderWidth, &wc);
	configure(c);
	XSync(dpy, False);
}

void
resizetitle(Client *c) {
	c->tw = textw(c->name);
	if(c->tw > c->w)
		c->tw = c->w + 2 * BORDERPX;
	c->tx = c->x + c->w - c->tw + 2 * BORDERPX;
	c->ty = c->y;
	if(isvisible(c))
		XMoveResizeWindow(dpy, c->twin, c->tx, c->ty, c->tw, c->th);
	else
		XMoveResizeWindow(dpy, c->twin, c->tx + 2 * sw, c->ty, c->tw, c->th);
}

void
updatesize(Client *c) {
	long msize;
	XSizeHints size;

	if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
		size.flags = PSize;
	c->flags = size.flags;
	if(c->flags & PBaseSize) {
		c->basew = size.base_width;
		c->baseh = size.base_height;
	}
	else
		c->basew = c->baseh = 0;
	if(c->flags & PResizeInc) {
		c->incw = size.width_inc;
		c->inch = size.height_inc;
	}
	else
		c->incw = c->inch = 0;
	if(c->flags & PMaxSize) {
		c->maxw = size.max_width;
		c->maxh = size.max_height;
	}
	else
		c->maxw = c->maxh = 0;
	if(c->flags & PMinSize) {
		c->minw = size.min_width;
		c->minh = size.min_height;
	}
	else
		c->minw = c->minh = 0;
	c->isfixed = (c->maxw && c->minw && c->maxh && c->minh &&
				c->maxw == c->minw && c->maxh == c->minh);
	if(c->flags & PWinGravity)
		c->grav = size.win_gravity;
	else
		c->grav = NorthWestGravity;
}

void
updatetitle(Client *c) {
	char **list = NULL;
	int n;
	XTextProperty name;

	name.nitems = 0;
	c->name[0] = 0;
	XGetTextProperty(dpy, c->win, &name, netatom[NetWMName]);
	if(!name.nitems)
		XGetWMName(dpy, c->win, &name);
	if(!name.nitems)
		return;
	if(name.encoding == XA_STRING)
		strncpy(c->name, (char *)name.value, sizeof(c->name));
	else {
		if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
				&& n > 0 && *list)
		{
			strncpy(c->name, *list, sizeof(c->name));
			XFreeStringList(list);
		}
	}
	XFree(name.value);
}

void
unmanage(Client *c) {
	Client *nc;

	/* The server grab construct avoids race conditions. */
	XGrabServer(dpy);
	XSetErrorHandler(xerrordummy);
	detach(c);
	detachstack(c);
	if(sel == c) {
		for(nc = stack; nc && !isvisible(nc); nc = nc->snext);
		focus(nc);
	}
	XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
	XDestroyWindow(dpy, c->twin);
	free(c->tags);
	free(c);
	XSync(dpy, False);
	XSetErrorHandler(xerror);
	XUngrabServer(dpy);
	arrange();
}