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-rw-r--r--map.c665
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;
+}
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