From c15af78521d97e025f5f09fb4d3a659928c2d2f5 Mon Sep 17 00:00:00 2001
From: Adrian Cochrane <adrian@openwork.nz>
Date: Thu, 14 May 2020 09:45:35 +1200
Subject: [PATCH] Add arrow key navigation inside pages.

---
 src/main.c | 37 ++++++++++++++++++++++++++-----------
 1 file changed, 26 insertions(+), 11 deletions(-)

diff --git a/src/main.c b/src/main.c
index eca29a0..2bf67e7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -117,30 +117,44 @@ int speak_initialize() {
     samplerate = espeak_ng_GetSampleRate();
     return 0;
 }
-void speak(char *ssml) {
+void speak(char *ssml, char *mark) {
     int flags = espeakCHARS_AUTO | espeakPHONEMES | espeakENDPAUSE | espeakCHARS_UTF8 | espeakSSML;
-    espeak_Synth(ssml, strlen(ssml)+1, 0, POS_CHARACTER, 0, flags, NULL, NULL);
+    if (mark != NULL) espeak_Synth_Mark(ssml, strlen(ssml)+1, mark, 0, flags, NULL, NULL);
+    espeak_Synth(ssml, strlen(ssml)+1, 0, POS_CHARACTER, 0, flags, NULL, NULL); // FIXME only do so if mark doesn't play.
 }
 int read_keyboard = 0;
-int speak_finalize() {
+int speak_finalize(char *ssml) {
     while (read_keyboard) {
         char c = getc(stdin);
         if (c == '\033') {
+            char mark[200];
             espeak_Cancel();
             c = getc(stdin);
             if (c == 0 || c == -1 || c == '\033' || c == 'q') goto close; // skip [
             switch (getc(stdin)) {
             case 'A':
-                printf("🠕");
+                // 🠕
+                section_no--;
+                sprintf(mark, "-rhaps-section%i", section_no);
+                speak(ssml, section_no > 0 ? mark : NULL);
                 break;
             case 'B':
-                printf("🠗");
+                // 🠗
+                section_no++;
+                sprintf(mark, "-rhaps-section%i", section_no);
+                speak(ssml, section_no > 0 ? mark : NULL);
                 break;
             case 'C':
-                printf("➔");
+                // ➔
+                paragraph_no++;
+                sprintf(mark, "-rhaps-paragraph%i", paragraph_no);
+                speak(ssml, paragraph_no > 0 ? mark : NULL);
                 break;
             case 'D':
-                printf("🠔");
+                // 🠔
+                paragraph_no--;
+                sprintf(mark, "-rhaps-paragraph%i", paragraph_no);
+                speak(ssml, paragraph_no > 0 ? mark : NULL);
                 break;
             }
         }
@@ -234,21 +248,22 @@ int main(int argc, char **argv) {
     struct page *referer = c_initialReferer();
 
     if (use_espeak) speak_err = speak_initialize();
+    char *ssml;
     for (int i = optind; i < argc; i++) {
-        if (use_espeak && speak_err == 0) speak(argv[i]);
+        if (use_espeak && speak_err == 0) speak(argv[i], NULL);
         else printf("%s\n", argv[i]);
 
         struct page *page = c_fetchURL(session, mimes, referer, argv[i]);
-        char *ssml = c_renderDoc(session, page, use_espeak);
+        ssml = c_renderDoc(session, page, use_espeak);
         char **links = c_extractLinks(page);
 
         if (fd_ssml != NULL) fprintf(fd_ssml, "%s\n", ssml);
         if (fd_links != NULL) write_links(fd_links, links);
-        if (use_espeak & speak_err == 0) speak(ssml);
+        if (use_espeak & speak_err == 0) speak(ssml, "main");
 
         c_freePage(page);
     }
-    if (use_espeak & speak_err == 0) speak_err = speak_finalize();
+    if (use_espeak & speak_err == 0) speak_err = speak_finalize(ssml);
 
     c_freePage(referer);
     c_freeSession(session);
-- 
2.30.2