Adding upstream version 0.5.1upstream/0.5.1

1 files changed, 665 insertions, 0 deletions

diff --git a/map.c b/map.c
new file mode 100644
index 0000000..90aa35a
--- /dev/null
+++ b/map.c
@@ -0,0 +1,665 @@
+/* $Id: map.c,v 1.30 2003/09/24 18:49:00 ukai Exp $ */
+/*
+ * client-side image maps
+ */
+#include "fm.h"
+#include <math.h>
+
+MapList *
+searchMapList(Buffer *buf, char *name)
+{
+    MapList *ml;
+
+    if (name == NULL)
+	return NULL;
+    for (ml = buf->maplist; ml != NULL; ml = ml->next) {
+	if (!Strcmp_charp(ml->name, name))
+	    break;
+    }
+    return ml;
+}
+
+#ifdef USE_IMAGE
+static int
+inMapArea(MapArea * a, int x, int y)
+{
+    int i;
+    double r1, r2, s, c, t;
+
+    if (!a)
+	return FALSE;
+    switch (a->shape) {
+    case SHAPE_RECT:
+	if (x >= a->coords[0] && y >= a->coords[1] &&
+	    x <= a->coords[2] && y <= a->coords[3])
+	    return TRUE;
+	break;
+    case SHAPE_CIRCLE:
+	if ((x - a->coords[0]) * (x - a->coords[0])
+	    + (y - a->coords[1]) * (y - a->coords[1])
+	    <= a->coords[2] * a->coords[2])
+	    return TRUE;
+	break;
+    case SHAPE_POLY:
+	for (t = 0, i = 0; i < a->ncoords; i += 2) {
+	    r1 = sqrt((double)(x - a->coords[i]) * (x - a->coords[i])
+		      + (double)(y - a->coords[i + 1]) * (y -
+							  a->coords[i + 1]));
+	    r2 = sqrt((double)(x - a->coords[i + 2]) * (x - a->coords[i + 2])
+		      + (double)(y - a->coords[i + 3]) * (y -
+							  a->coords[i + 3]));
+	    if (r1 == 0 || r2 == 0)
+		return TRUE;
+	    s = ((double)(x - a->coords[i]) * (y - a->coords[i + 3])
+		 - (double)(x - a->coords[i + 2]) * (y -
+						     a->coords[i +
+							       1])) / r1 / r2;
+	    c = ((double)(x - a->coords[i]) * (x - a->coords[i + 2])
+		 + (double)(y - a->coords[i + 1]) * (y -
+						     a->coords[i +
+							       3])) / r1 / r2;
+	    t += atan2(s, c);
+	}
+	if (fabs(t) > 2 * 3.14)
+	    return TRUE;
+	break;
+    case SHAPE_DEFAULT:
+	return TRUE;
+    default:
+	break;
+    }
+    return FALSE;
+}
+
+static int
+nearestMapArea(MapList *ml, int x, int y)
+{
+    ListItem *al;
+    MapArea *a;
+    int i, l, n = -1, min = -1, limit = pixel_per_char * pixel_per_char
+	+ pixel_per_line * pixel_per_line;
+
+    if (!ml || !ml->area)
+	return n;
+    for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (a) {
+	    l = (a->center_x - x) * (a->center_x - x)
+		+ (a->center_y - y) * (a->center_y - y);
+	    if ((min < 0 || l < min) && l < limit) {
+		n = i;
+		min = l;
+	    }
+	}
+    }
+    return n;
+}
+
+static int
+searchMapArea(Buffer *buf, MapList *ml, Anchor *a_img)
+{
+    ListItem *al;
+    MapArea *a;
+    int i, n;
+    int px, py;
+
+    if (!(ml && ml->area && ml->area->nitem))
+	return -1;
+    if (!getMapXY(buf, a_img, &px, &py))
+	return -1;
+    n = -ml->area->nitem;
+    for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (!a)
+	    continue;
+	if (n < 0 && inMapArea(a, px, py)) {
+	    if (a->shape == SHAPE_DEFAULT) {
+		if (n == -ml->area->nitem)
+		    n = -i;
+	    }
+	    else
+		n = i;
+	}
+    }
+    if (n == -ml->area->nitem)
+	return nearestMapArea(ml, px, py);
+    else if (n < 0)
+	return -n;
+    return n;
+}
+
+MapArea *
+retrieveCurrentMapArea(Buffer *buf)
+{
+    Anchor *a_img, *a_form;
+    FormItemList *fi;
+    MapList *ml;
+    ListItem *al;
+    MapArea *a;
+    int i, n;
+
+    a_img = retrieveCurrentImg(buf);
+    if (!(a_img && a_img->image && a_img->image->map))
+	return NULL;
+    a_form = retrieveCurrentForm(buf);
+    if (!(a_form && a_form->url))
+	return NULL;
+    fi = (FormItemList *)a_form->url;
+    if (!(fi && fi->parent && fi->parent->item))
+	return NULL;
+    fi = fi->parent->item;
+    ml = searchMapList(buf, fi->value ? fi->value->ptr : NULL);
+    if (!ml)
+	return NULL;
+    n = searchMapArea(buf, ml, a_img);
+    if (n < 0)
+	return NULL;
+    for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (a && i == n)
+	    return a;
+    }
+    return NULL;
+}
+
+int
+getMapXY(Buffer *buf, Anchor *a, int *x, int *y)
+{
+    if (!buf || !a || !a->image || !x || !y)
+	return 0;
+    *x = (int)((buf->currentColumn + buf->cursorX
+		- COLPOS(buf->currentLine, a->start.pos) + 0.5)
+	       * pixel_per_char) - a->image->xoffset;
+    *y = (int)((buf->currentLine->linenumber - a->image->y + 0.5)
+	       * pixel_per_line) - a->image->yoffset;
+    if (*x <= 0)
+	*x = 1;
+    if (*y <= 0)
+	*y = 1;
+    return 1;
+}
+#endif
+
+Anchor *
+retrieveCurrentMap(Buffer *buf)
+{
+    Anchor *a;
+    FormItemList *fi;
+
+    a = retrieveCurrentForm(buf);
+    if (!a || !a->url)
+	return NULL;
+    fi = (FormItemList *)a->url;
+    if (fi->parent->method == FORM_METHOD_INTERNAL &&
+	!Strcmp_charp(fi->parent->action, "map"))
+	return a;
+    return NULL;
+}
+
+#if defined(USE_IMAGE) || defined(MENU_MAP)
+MapArea *
+follow_map_menu(Buffer *buf, char *name, Anchor *a_img, int x, int y)
+{
+    MapList *ml;
+    ListItem *al;
+    int i, selected = -1;
+    int initial = 0;
+#ifdef MENU_MAP
+    MapArea *a;
+    char **label;
+#endif
+
+    ml = searchMapList(buf, name);
+    if (ml == NULL || ml->area == NULL || ml->area->nitem == 0)
+	return NULL;
+
+#ifdef USE_IMAGE
+    initial = searchMapArea(buf, ml, a_img);
+    if (initial < 0)
+	initial = 0;
+    else if (!image_map_list) {
+	selected = initial;
+	goto map_end;
+    }
+#endif
+
+#ifdef MENU_MAP
+    label = New_N(char *, ml->area->nitem + 1);
+    for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (a)
+	    label[i] = *a->alt ? a->alt : a->url;
+	else
+	    label[i] = "";
+    }
+    label[ml->area->nitem] = NULL;
+
+    optionMenu(x, y, label, &selected, initial, NULL);
+#endif
+
+#ifdef USE_IMAGE
+  map_end:
+#endif
+    if (selected >= 0) {
+	for (i = 0, al = ml->area->first; al != NULL; i++, al = al->next) {
+	    if (al->ptr && i == selected)
+		return (MapArea *) al->ptr;
+	}
+    }
+    return NULL;
+}
+#endif
+
+#ifndef MENU_MAP
+char *map1 = "<HTML><HEAD><TITLE>Image map links</TITLE></HEAD>\
+<BODY><H1>Image map links</H1>\
+<table>";
+
+Buffer *
+follow_map_panel(Buffer *buf, char *name)
+{
+    Str mappage;
+    MapList *ml;
+    ListItem *al;
+    MapArea *a;
+    ParsedURL pu;
+    char *p, *q;
+    Buffer *newbuf;
+
+    ml = searchMapList(buf, name);
+    if (ml == NULL)
+	return NULL;
+
+    mappage = Strnew_charp(map1);
+    for (al = ml->area->first; al != NULL; al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (!a)
+	    continue;
+	parseURL2(a->url, &pu, baseURL(buf));
+	p = parsedURL2Str(&pu)->ptr;
+	q = html_quote(p);
+	if (DecodeURL)
+	    p = html_quote(url_unquote_conv(p, buf->document_charset));
+	else
+	    p = q;
+	Strcat_m_charp(mappage, "<tr valign=top><td><a href=\"", q, "\">",
+		       html_quote(*a->alt ? a->alt : mybasename(a->url)),
+		       "</a><td>", p, NULL);
+    }
+    Strcat_charp(mappage, "</table></body></html>");
+
+    newbuf = loadHTMLString(mappage);
+#ifdef USE_M17N
+    if (newbuf)
+	newbuf->document_charset = buf->document_charset;
+#endif
+    return newbuf;
+}
+#endif
+
+MapArea *
+newMapArea(char *url, char *target, char *alt, char *shape, char *coords)
+{
+    MapArea *a = New(MapArea);
+#ifdef USE_IMAGE
+    char *p;
+    int i, max;
+#endif
+
+    a->url = url;
+    a->target = target;
+    a->alt = alt ? alt : "";
+#ifdef USE_IMAGE
+    a->shape = SHAPE_RECT;
+    if (shape) {
+	if (!strcasecmp(shape, "default"))
+	    a->shape = SHAPE_DEFAULT;
+	else if (!strncasecmp(shape, "rect", 4))
+	    a->shape = SHAPE_RECT;
+	else if (!strncasecmp(shape, "circ", 4))
+	    a->shape = SHAPE_CIRCLE;
+	else if (!strncasecmp(shape, "poly", 4))
+	    a->shape = SHAPE_POLY;
+	else
+	    a->shape = SHAPE_UNKNOWN;
+    }
+    a->coords = NULL;
+    a->ncoords = 0;
+    a->center_x = 0;
+    a->center_y = 0;
+    if (a->shape == SHAPE_UNKNOWN || a->shape == SHAPE_DEFAULT)
+	return a;
+    if (!coords) {
+	a->shape = SHAPE_UNKNOWN;
+	return a;
+    }
+    if (a->shape == SHAPE_RECT) {
+	a->coords = New_N(short, 4);
+	a->ncoords = 4;
+    }
+    else if (a->shape == SHAPE_CIRCLE) {
+	a->coords = New_N(short, 3);
+	a->ncoords = 3;
+    }
+    max = a->ncoords;
+    for (i = 0, p = coords; (a->shape == SHAPE_POLY || i < a->ncoords) && *p;) {
+	while (IS_SPACE(*p))
+	    p++;
+	if (!IS_DIGIT(*p) && *p != '-' && *p != '+')
+	    break;
+	if (a->shape == SHAPE_POLY) {
+	    if (max <= i) {
+		max = i ? i * 2 : 6;
+		a->coords = New_Reuse(short, a->coords, max + 2);
+	    }
+	    a->ncoords++;
+	}
+	a->coords[i] = (short)atoi(p);
+	i++;
+	if (*p == '-' || *p == '+')
+	    p++;
+	while (IS_DIGIT(*p))
+	    p++;
+	if (*p != ',' && !IS_SPACE(*p))
+	    break;
+	while (IS_SPACE(*p))
+	    p++;
+	if (*p == ',')
+	    p++;
+    }
+    if (i != a->ncoords || (a->shape == SHAPE_POLY && a->ncoords < 6)) {
+	a->shape = SHAPE_UNKNOWN;
+	a->coords = NULL;
+	a->ncoords = 0;
+	return a;
+    }
+    if (a->shape == SHAPE_POLY) {
+	a->ncoords = a->ncoords / 2 * 2;
+	a->coords[a->ncoords] = a->coords[0];
+	a->coords[a->ncoords + 1] = a->coords[1];
+    }
+    if (a->shape == SHAPE_CIRCLE) {
+	a->center_x = a->coords[0];
+	a->center_y = a->coords[1];
+    }
+    else {
+	for (i = 0; i < a->ncoords / 2; i++) {
+	    a->center_x += a->coords[2 * i];
+	    a->center_y += a->coords[2 * i + 1];
+	}
+	a->center_x /= a->ncoords / 2;
+	a->center_y /= a->ncoords / 2;
+    }
+#endif
+    return a;
+}
+
+/* append image map links */
+static void
+append_map_info(Buffer *buf, Str tmp, FormItemList *fi)
+{
+    MapList *ml;
+    ListItem *al;
+    MapArea *a;
+    ParsedURL pu;
+    char *p, *q;
+
+    ml = searchMapList(buf, fi->value ? fi->value->ptr : NULL);
+    if (ml == NULL)
+	return;
+
+    Strcat_m_charp(tmp,
+		   "<tr valign=top><td colspan=2>Links of current image map",
+		   "<tr valign=top><td colspan=2><table>", NULL);
+    for (al = ml->area->first; al != NULL; al = al->next) {
+	a = (MapArea *) al->ptr;
+	if (!a)
+	    continue;
+	parseURL2(a->url, &pu, baseURL(buf));
+	q = html_quote(parsedURL2Str(&pu)->ptr);
+	if (DecodeURL)
+	    p = html_quote(url_unquote_conv(a->url, buf->document_charset));
+	else
+	    p = html_quote(a->url);
+	Strcat_m_charp(tmp, "<tr valign=top><td>&nbsp;&nbsp;<td><a href=\"",
+		       q, "\">",
+		       html_quote(*a->alt ? a->alt : mybasename(a->url)),
+		       "</a><td>", p, "\n", NULL);
+    }
+    Strcat_charp(tmp, "</table>");
+}
+
+/* append links */
+static void
+append_link_info(Buffer *buf, Str html, LinkList * link)
+{
+    LinkList *l;
+    ParsedURL pu;
+    char *url;
+
+    if (!link)
+	return;
+
+    Strcat_charp(html, "<hr width=50%><h1>Link information</h1><table>\n");
+    for (l = link; l; l = l->next) {
+	if (l->url) {
+	    parseURL2(l->url, &pu, baseURL(buf));
+	    url = html_quote(parsedURL2Str(&pu)->ptr);
+	}
+	else
+	    url = "(empty)";
+	Strcat_m_charp(html, "<tr valign=top><td><a href=\"", url, "\">",
+		       l->title ? html_quote(l->title) : "(empty)", "</a><td>",
+		       NULL);
+	if (l->type == LINK_TYPE_REL)
+	    Strcat_charp(html, "[Rel]");
+	else if (l->type == LINK_TYPE_REV)
+	    Strcat_charp(html, "[Rev]");
+	if (!l->url)
+	    url = "(empty)";
+	else if (DecodeURL)
+	    url = html_quote(url_unquote_conv(l->url, buf->document_charset));
+	else
+	    url = html_quote(l->url);
+	Strcat_m_charp(html, "<td>", url, NULL);
+	if (l->ctype)
+	    Strcat_m_charp(html, " (", html_quote(l->ctype), ")", NULL);
+	Strcat_charp(html, "\n");
+    }
+    Strcat_charp(html, "</table>\n");
+}
+
+/* append frame URL */
+static void
+append_frame_info(Buffer *buf, Str html, struct frameset *set, int level)
+{
+    char *p, *q;
+    int i, j;
+
+    if (!set)
+	return;
+
+    for (i = 0; i < set->col * set->row; i++) {
+	union frameset_element frame = set->frame[i];
+	if (frame.element != NULL) {
+	    switch (frame.element->attr) {
+	    case F_UNLOADED:
+	    case F_BODY:
+		if (frame.body->url == NULL)
+		    break;
+		Strcat_charp(html, "<pre_int>");
+		for (j = 0; j < level; j++)
+		    Strcat_charp(html, "   ");
+		q = html_quote(frame.body->url);
+		Strcat_m_charp(html, "<a href=\"", q, "\">", NULL);
+		if (frame.body->name) {
+		    p = html_quote(url_unquote_conv(frame.body->name,
+						    buf->document_charset));
+		    Strcat_charp(html, p);
+		}
+		if (DecodeURL)
+		    p = html_quote(url_unquote_conv(frame.body->url,
+						    buf->document_charset));
+		else
+		    p = q;
+		Strcat_m_charp(html, " ", p, "</a></pre_int><br>\n", NULL);
+#ifdef USE_SSL
+		if (frame.body->ssl_certificate)
+		    Strcat_m_charp(html,
+				   "<blockquote><h2>SSL certificate</h2><pre>\n",
+				   html_quote(frame.body->ssl_certificate),
+				   "</pre></blockquote>\n", NULL);
+#endif
+		break;
+	    case F_FRAMESET:
+		append_frame_info(buf, html, frame.set, level + 1);
+		break;
+	    }
+	}
+    }
+}
+
+/* 
+ * information of current page and link 
+ */
+Buffer *
+page_info_panel(Buffer *buf)
+{
+    Str tmp = Strnew_size(1024);
+    Anchor *a;
+    ParsedURL pu;
+    TextListItem *ti;
+    struct frameset *f_set = NULL;
+    int all;
+    char *p, *q;
+#ifdef USE_M17N
+    wc_ces_list *list;
+    char charset[16];
+#endif
+    Buffer *newbuf;
+
+    Strcat_charp(tmp, "<html><head>\
+<title>Information about current page</title>\
+</head><body>\
+<h1>Information about current page</h1>\n");
+    if (buf == NULL)
+	goto end;
+    all = buf->allLine;
+    if (all == 0 && buf->lastLine)
+	all = buf->lastLine->linenumber;
+#ifdef USE_M17N
+    Strcat_charp(tmp, "<form method=internal action=charset>");
+#endif
+    p = parsedURL2Str(&buf->currentURL)->ptr;
+    if (DecodeURL)
+	p = url_unquote_conv(p, 0);
+    Strcat_m_charp(tmp, "<table cellpadding=0>",
+		   "<tr valign=top><td nowrap>Title<td>",
+		   html_quote(buf->buffername),
+		   "<tr valign=top><td nowrap>Current URL<td>",
+		   html_quote(p),
+		   "<tr valign=top><td nowrap>Document Type<td>",
+		   buf->real_type ? html_quote(buf->real_type) : "unknown",
+		   "<tr valign=top><td nowrap>Last Modified<td>",
+		   html_quote(last_modified(buf)), NULL);
+#ifdef USE_M17N
+    if (buf->document_charset != InnerCharset) {
+	list = wc_get_ces_list();
+	Strcat_charp(tmp,
+		     "<tr><td nowrap>Document Charset<td><select name=charset>");
+	for (; list->name != NULL; list++) {
+	    sprintf(charset, "%d", (unsigned int)list->id);
+	    Strcat_m_charp(tmp, "<option value=", charset,
+			   (buf->document_charset == list->id) ? " selected>"
+			   : ">", list->desc, NULL);
+	}
+	Strcat_charp(tmp, "</select>");
+	Strcat_charp(tmp, "<tr><td><td><input type=submit value=Change>");
+    }
+#endif
+    Strcat_m_charp(tmp,
+		   "<tr valign=top><td nowrap>Number of lines<td>",
+		   Sprintf("%d", all)->ptr,
+		   "<tr valign=top><td nowrap>Transferred bytes<td>",
+		   Sprintf("%d", buf->trbyte)->ptr, NULL);
+
+    a = retrieveCurrentAnchor(buf);
+    if (a != NULL) {
+	parseURL2(a->url, &pu, baseURL(buf));
+	p = parsedURL2Str(&pu)->ptr;
+	q = html_quote(p);
+	if (DecodeURL)
+	    p = html_quote(url_unquote_conv(p, buf->document_charset));
+	else
+	    p = q;
+	Strcat_m_charp(tmp,
+		       "<tr valign=top><td nowrap>URL of current anchor<td><a href=\"",
+		       q, "\">", p, "</a>", NULL);
+    }
+    a = retrieveCurrentImg(buf);
+    if (a != NULL) {
+	parseURL2(a->url, &pu, baseURL(buf));
+	p = parsedURL2Str(&pu)->ptr;
+	q = html_quote(p);
+	if (DecodeURL)
+	    p = html_quote(url_unquote_conv(p, buf->document_charset));
+	else
+	    p = q;
+	Strcat_m_charp(tmp,
+		       "<tr valign=top><td nowrap>URL of current image<td><a href=\"",
+		       q, "\">", p, "</a>", NULL);
+    }
+    a = retrieveCurrentForm(buf);
+    if (a != NULL) {
+	FormItemList *fi = (FormItemList *)a->url;
+	p = form2str(fi);
+	if (DecodeURL)
+	    p = html_quote(url_unquote_conv(p, buf->document_charset));
+	else
+	    p = html_quote(p);
+	Strcat_m_charp(tmp,
+		       "<tr valign=top><td nowrap>Method/type of current form&nbsp;<td>",
+		       p, NULL);
+	if (fi->parent->method == FORM_METHOD_INTERNAL
+	    && !Strcmp_charp(fi->parent->action, "map"))
+	    append_map_info(buf, tmp, fi->parent->item);
+    }
+    Strcat_charp(tmp, "</table>\n");
+#ifdef USE_M17N
+    Strcat_charp(tmp, "</form>");
+#endif
+
+    append_link_info(buf, tmp, buf->linklist);
+
+    if (buf->document_header != NULL) {
+	Strcat_charp(tmp, "<hr width=50%><h1>Header information</h1><pre>\n");
+	for (ti = buf->document_header->first; ti != NULL; ti = ti->next)
+	    Strcat_m_charp(tmp, "<pre_int>", html_quote(ti->ptr),
+			   "</pre_int>\n", NULL);
+	Strcat_charp(tmp, "</pre>\n");
+    }
+
+    if (buf->frameset != NULL)
+	f_set = buf->frameset;
+    else if (buf->bufferprop & BP_FRAME &&
+	     buf->nextBuffer != NULL && buf->nextBuffer->frameset != NULL)
+	f_set = buf->nextBuffer->frameset;
+
+    if (f_set) {
+	Strcat_charp(tmp, "<hr width=50%><h1>Frame information</h1>\n");
+	append_frame_info(buf, tmp, f_set, 0);
+    }
+#ifdef USE_SSL
+    if (buf->ssl_certificate)
+	Strcat_m_charp(tmp, "<h1>SSL certificate</h1><pre>\n",
+		       html_quote(buf->ssl_certificate), "</pre>\n", NULL);
+#endif
+  end:
+    Strcat_charp(tmp, "</body></html>");
+    newbuf = loadHTMLString(tmp);
+#ifdef USE_M17N
+    if (newbuf)
+	newbuf->document_charset = buf->document_charset;
+#endif
+    return newbuf;
+}