ui-diff.c: create a control panel for diff options

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

5 files changed, 88 insertions, 38 deletions

diff --git a/cgit.css b/cgit.css
index 1d90057..55afa94 100644
--- a/cgit.css
+++ b/cgit.css
@@ -331,6 +331,33 @@ table.commit-info {
         margin-top: 1.5em;
 }
 
+div.cgit-panel {
+        float: right;
+        margin-top: 1.5em;
+}
+
+div.cgit-panel table {
+        border-collapse: collapse;
+        border: solid 1px #aaa;
+        background-color: #eee;
+}
+
+div.cgit-panel th {
+        text-align: center;
+}
+
+div.cgit-panel td {
+        padding: 0.25em 0.5em;
+}
+
+div.cgit-panel td.label {
+        padding-right: 0.5em;
+}
+
+div.cgit-panel td.ctrl {
+        padding-left: 0.5em;
+}
+
 table.commit-info th {
         text-align: left;
         font-weight: normal;
diff --git a/cmd.c b/cmd.c
index 536515b..05d5aaf 100644
--- a/cmd.c
+++ b/cmd.c
@@ -56,7 +56,7 @@ static void commit_fn(struct cgit_context *ctx)
 
 static void diff_fn(struct cgit_context *ctx)
 {
-        cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path);
+        cgit_print_diff(ctx->qry.sha1, ctx->qry.sha2, ctx->qry.path, 1);
 }
 
 static void info_fn(struct cgit_context *ctx)
diff --git a/ui-commit.c b/ui-commit.c
index 2b4f677..536a8e8 100644
--- a/ui-commit.c
+++ b/ui-commit.c
@@ -39,7 +39,8 @@ void cgit_print_commit(char *hex, const char *prefix)
         format_note(NULL, sha1, &notes, PAGE_ENCODING, 0);
 
         load_ref_decorations(DECORATE_FULL_REFS);
-
+        
+        cgit_print_diff_ctrls();
         html("<table summary='commit info' class='commit-info'>\n");
         html("<tr><th>author</th><td>");
         html_txt(info->author);
@@ -64,11 +65,6 @@ void cgit_print_commit(char *hex, const char *prefix)
         cgit_commit_link(tmp, NULL, NULL, ctx.qry.head, tmp, prefix, 0);
         html(" (");
         cgit_patch_link("patch", NULL, NULL, NULL, tmp, prefix);
-        html(") (");
-        if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))
-                cgit_commit_link("unidiff", NULL, NULL, ctx.qry.head, tmp, prefix, 1);
-        else
-                cgit_commit_link("side-by-side diff", NULL, NULL, ctx.qry.head, tmp, prefix, 1);
         html(")</td></tr>\n");
         html("<tr><th>tree</th><td colspan='2' class='sha1'>");
         tmp = xstrdup(hex);
@@ -139,7 +135,7 @@ void cgit_print_commit(char *hex, const char *prefix)
                         tmp = sha1_to_hex(commit->parents->item->object.sha1);
                 else
                         tmp = NULL;
-                cgit_print_diff(ctx.qry.sha1, tmp, prefix);
+                cgit_print_diff(ctx.qry.sha1, tmp, prefix, 0);
         }
         strbuf_release(&notes);
         cgit_free_commitinfo(info);
diff --git a/ui-diff.c b/ui-diff.c
index a7bc667..b7767b3 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -167,7 +167,7 @@ static void inspect_filepair(struct diff_filepair *pair)
 void cgit_print_diffstat(const unsigned char *old_sha1,
                          const unsigned char *new_sha1, const char *prefix)
 {
-        int i, save_context = ctx.qry.context;
+        int i;
 
         html("<div class='diffstat-header'>");
         cgit_diff_link("Diffstat", NULL, NULL, ctx.qry.head, ctx.qry.sha1,
@@ -177,19 +177,6 @@ void cgit_print_diffstat(const unsigned char *old_sha1,
                 html_txt(prefix);
                 html("')");
         }
-        html(" (");
-        ctx.qry.context = (save_context > 0 ? save_context : 3) << 1;
-        cgit_self_link("more", NULL, NULL, &ctx);
-        html("/");
-        ctx.qry.context = (save_context > 3 ? save_context : 3) >> 1;
-        cgit_self_link("less", NULL, NULL, &ctx);
-        ctx.qry.context = save_context;
-        html(" context)");
-        html(" (");
-        ctx.qry.ignorews = (ctx.qry.ignorews + 1) % 2;
-        cgit_self_link(ctx.qry.ignorews ? "ignore" : "show", NULL, NULL, &ctx);
-        ctx.qry.ignorews = (ctx.qry.ignorews + 1) % 2;
-        html(" whitespace changes)");
         html("</div>");
         html("<table summary='diffstat' class='diffstat'>");
         max_changes = 0;
@@ -278,19 +265,6 @@ static void header(unsigned char *sha1, char *path1, int mode1,
         html("</div>");
 }
 
-static void print_ssdiff_link()
-{
-        if (!strcmp(ctx.qry.page, "diff")) {
-                if (use_ssdiff)
-                        cgit_diff_link("Unidiff", NULL, NULL, ctx.qry.head,
-                                       ctx.qry.sha1, ctx.qry.sha2, ctx.qry.path, 1);
-                else
-                        cgit_diff_link("Side-by-side diff", NULL, NULL,
-                                       ctx.qry.head, ctx.qry.sha1,
-                                       ctx.qry.sha2, ctx.qry.path, 1);
-        }
-}
-
 static void filepair_cb(struct diff_filepair *pair)
 {
         unsigned long old_size = 0;
@@ -330,7 +304,56 @@ static void filepair_cb(struct diff_filepair *pair)
                 cgit_ssdiff_footer();
 }
 
-void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefix)
+void cgit_print_diff_ctrls()
+{
+        int i, curr;
+
+        html("<div class='cgit-panel'>");
+        html("<b>diff options</b>");
+        html("<form method='get' action='.'>");
+        cgit_add_hidden_formfields(1, 0, ctx.qry.page);
+        html("<table>");
+        html("<tr><td colspan='2'/></tr>");
+        html("<tr>");
+        html("<td class='label'>context:</td>");
+        html("<td class='ctrl'>");
+        html("<select name='context' onchange='this.form.submit();'>");
+        curr = ctx.qry.context;
+        if (!curr)
+                curr = 3;
+        for (i = 1; i <= 10; i++)
+                html_intoption(i, fmt("%d", i), curr);
+        for (i = 15; i <= 40; i += 5)
+                html_intoption(i, fmt("%d", i), curr);
+        html("</select>");
+        html("</td>");
+        html("</tr><tr>");
+        html("<td class='label'>space:</td>");
+        html("<td class='ctrl'>");
+        html("<select name='ignorews' onchange='this.form.submit();'>");
+        html_intoption(0, "include", ctx.qry.ignorews);
+        html_intoption(1, "ignore", ctx.qry.ignorews);
+        html("</select>");
+        html("</td>");
+        html("</tr><tr>");
+        html("<td class='label'>mode:</td>");
+        html("<td class='ctrl'>");
+        html("<select name='ss' onchange='this.form.submit();'>");
+        curr = ctx.qry.ssdiff;
+        if (!curr && ctx.cfg.ssdiff)
+                curr = 1;
+        html_intoption(0, "unified", curr);
+        html_intoption(1, "ssdiff", curr);
+        html("</select></td></tr>");
+        html("<tr><td/><td class='ctrl'>");
+        html("<noscript><input type='submit' value='reload'/></noscript>");
+        html("</td></tr></table>");
+        html("</form>");
+        html("</div>");
+}
+
+void cgit_print_diff(const char *new_rev, const char *old_rev,
+                     const char *prefix, int show_ctrls)
 {
         enum object_type type;
         unsigned long size;
@@ -369,7 +392,9 @@ void cgit_print_diff(const char *new_rev, const char *old_rev, const char *prefi
         if ((ctx.qry.ssdiff && !ctx.cfg.ssdiff) || (!ctx.qry.ssdiff && ctx.cfg.ssdiff))
                 use_ssdiff = 1;
 
-        print_ssdiff_link();
+        if (show_ctrls)
+                cgit_print_diff_ctrls();
+
         cgit_print_diffstat(old_rev_sha1, new_rev_sha1, prefix);
 
         if (use_ssdiff) {
diff --git a/ui-diff.h b/ui-diff.h
index 12d0c62..0161ffb 100644
--- a/ui-diff.h
+++ b/ui-diff.h
@@ -1,11 +1,13 @@
 #ifndef UI_DIFF_H
 #define UI_DIFF_H
 
+extern void cgit_print_diff_ctrls();
+
 extern void cgit_print_diffstat(const unsigned char *old_sha1,
                                 const unsigned char *new_sha1);
 
 extern void cgit_print_diff(const char *new_hex, const char *old_hex,
-                            const char *prefix);
+                            const char *prefix, int show_ctrls);
 
 extern struct diff_filespec *cgit_get_current_old_file(void);
 extern struct diff_filespec *cgit_get_current_new_file(void);