Add generic support for search box in page header

This adds the ability to show a search box in any pageheader with correct href and
hidden form data, but does not enable the box on any pages.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

cgit.c

@@ -16,7 +16,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	    cgit_read_config("info/cgit", cgit_repo_config_cb)) {
 		char *title = fmt("%s - %s", cgit_root_title, "Bad request");
 		cgit_print_docstart(title, item);
-		cgit_print_pageheader(title);
+		cgit_print_pageheader(title, 0);
 		cgit_print_error(fmt("Unable to scan repository: %s",
 				     strerror(errno)));
 		cgit_print_docend();
@@ -25,7 +25,7 @@ static void cgit_print_repo_page(struct cacheitem *item)
 	setenv("GIT_DIR", fmt("%s/%s", cgit_root, cgit_query_repo), 1);
 	char *title = fmt("%s - %s", cgit_repo_name, cgit_repo_desc);
 	cgit_print_docstart(title, item);
-	cgit_print_pageheader(title);
+	cgit_print_pageheader(title, 0);
 	if (!cgit_query_page) {
 		cgit_print_summary();
 	} else if (!strcmp(cgit_query_page, "log")) {

cgit.css

@@ -61,6 +61,11 @@ div#header {
 div#header img#logo {
 	float: right;
 }
+
+div#header input {
+	float: right;
+	margin: 0.25em 1em;
+}
 div#header a {
 	color: black;
 }

cgit.h

@@ -55,6 +55,7 @@ extern int cgit_query_has_sha1;
 extern char *cgit_querystring;
 extern char *cgit_query_repo;
 extern char *cgit_query_page;
+extern char *cgit_query_search;
 extern char *cgit_query_head;
 extern char *cgit_query_sha1;
 extern char *cgit_query_sha2;
@@ -75,6 +76,7 @@ extern void htmlf(const char *format,...);
 extern void html_txt(char *txt);
 extern void html_ntxt(int len, char *txt);
 extern void html_attr(char *txt);
+extern void html_hidden(char *name, char *value);
 extern void html_link_open(char *url, char *title, char *class);
 extern void html_link_close(void);
 extern void html_filemode(unsigned short mode);
@@ -98,7 +100,7 @@ extern void cgit_print_error(char *msg);
 extern void cgit_print_date(unsigned long secs);
 extern void cgit_print_docstart(char *title, struct cacheitem *item);
 extern void cgit_print_docend();
-extern void cgit_print_pageheader(char *title);
+extern void cgit_print_pageheader(char *title, int show_search);
 
 extern void cgit_print_repolist(struct cacheitem *item);
 extern void cgit_print_summary();

html.c

@@ -117,6 +117,15 @@ void html_attr(char *txt)
 		html(txt);
 }
 
+void html_hidden(char *name, char *value)
+{
+	html("<input type='hidden' name='");
+	html_attr(name);
+	html("' value='");
+	html_attr(value);
+	html("'/>");
+}
+
 void html_link_open(char *url, char *title, char *class)
 {
 	html("<a href='");
@@ -155,3 +164,4 @@ void html_filemode(unsigned short mode)
 	html_fileperm(mode >> 3);
 	html_fileperm(mode);
 }
+

shared.c

@@ -36,6 +36,7 @@ char *cgit_querystring  = NULL;
 char *cgit_query_repo   = NULL;
 char *cgit_query_page   = NULL;
 char *cgit_query_head   = NULL;
+char *cgit_query_search = NULL;
 char *cgit_query_sha1   = NULL;
 char *cgit_query_sha2   = NULL;
 int   cgit_query_ofs    = 0;
@@ -86,6 +87,8 @@ void cgit_querystring_cb(const char *name, const char *value)
 		cgit_query_repo = xstrdup(value);
 	} else if (!strcmp(name, "p")) {
 		cgit_query_page = xstrdup(value);
+	} else if (!strcmp(name, "q")) {
+		cgit_query_search = xstrdup(value);
 	} else if (!strcmp(name, "h")) {
 		cgit_query_head = xstrdup(value);
 		cgit_query_has_symref = 1;

ui-repolist.c

@@ -17,7 +17,7 @@ void cgit_print_repolist(struct cacheitem *item)
 
 	chdir(cgit_root);
 	cgit_print_docstart(cgit_root_title, item);
-	cgit_print_pageheader(cgit_root_title);
+	cgit_print_pageheader(cgit_root_title, 0);
 
 	if (!(d = opendir("."))) {
 		cgit_print_error(fmt("Unable to scan repository directory: %s",

ui-shared.c

@@ -60,6 +60,18 @@ char *cgit_pageurl(const char *reponame, const char *pagename,
 	}
 }
 
+char *cgit_currurl()
+{
+	if (!cgit_virtual_root)
+		return "./cgit.cgi";
+	else if (cgit_query_page)
+		return fmt("%s/%s/%s/", cgit_virtual_root, cgit_query_repo, cgit_query_page);
+	else if (cgit_query_repo)
+		return fmt("%s/%s/", cgit_virtual_root, cgit_query_repo);
+	else
+		return fmt("%s/", cgit_virtual_root);
+}
+
 
 void cgit_print_date(unsigned long secs)
 {
@@ -98,12 +110,26 @@ void cgit_print_docend()
 	html("</body>\n</html>\n");
 }
 
-void cgit_print_pageheader(char *title)
+void cgit_print_pageheader(char *title, int show_search)
 {
 	html("<div id='header'>");
 	htmlf("<a href='%s'>", cgit_logo_link);
 	htmlf("<img id='logo' src='%s'/>\n", cgit_logo);
 	htmlf("</a>");
+	if (show_search) {
+		html("<form method='get' href='");
+		html_attr(cgit_currurl());
+		html("'>");
+		if (cgit_query_head)
+			html_hidden("h", cgit_query_head);
+		if (cgit_query_sha1)
+			html_hidden("id", cgit_query_sha1);
+		if (cgit_query_sha2)
+			html_hidden("id2", cgit_query_sha2);
+		html("<input type='text' name='q' value='");
+		html_attr(cgit_query_search);
+		html("'/></form>");
+	}
 	if (cgit_query_repo)
 		htmlf("<a href='%s'>", cgit_repourl(cgit_query_repo));
 	html_txt(title);