Now buffers the EIP-712 pairs to show more than one per screen

src_features/signMessageEIP712/ui_logic.c

@@ -56,6 +56,9 @@ typedef struct {
     uint8_t field_flags;
     uint8_t structs_to_review;
     s_amount_context amount;
+#ifdef SCREEN_SIZE_WALLET
+    char ui_pairs_buffer[(SHARED_CTX_FIELD_1_SIZE + SHARED_CTX_FIELD_2_SIZE) * 2];
+#endif
 } t_ui_context;
 
 static t_ui_context *ui_ctx = NULL;
@@ -210,6 +213,7 @@ void ui_712_message_hash(void) {
                        sizeof(strings.tmp.tmp),
                        tmpCtx.messageSigningContext712.messageHash,
                        KECCAK256_HASH_BYTESIZE);
+    ui_ctx->end_reached = true;
     ui_712_redraw_generic_step();
 }
 
@@ -594,9 +598,9 @@ void ui_712_end_sign(void) {
         apdu_response_code = APDU_RESPONSE_CONDITION_NOT_SATISFIED;
         return;
     }
-    ui_ctx->end_reached = true;
 
     if (N_storage.verbose_eip712 || (ui_ctx->filtering_mode == EIP712_FILTERING_FULL)) {
+        ui_ctx->end_reached = true;
         ui_712_switch_to_sign();
     }
 }
@@ -778,4 +782,17 @@ bool ui_712_show_raw_key(const void *field_ptr) {
     return true;
 }
 
+#ifdef SCREEN_SIZE_WALLET
+/*
+ * Get UI pairs buffer
+ *
+ * @param[out] size buffer size
+ * @return pointer to the buffer
+ */
+char *get_ui_pairs_buffer(size_t *size) {
+    *size = sizeof(ui_ctx->ui_pairs_buffer);
+    return ui_ctx->ui_pairs_buffer;
+}
+#endif
+
 #endif  // HAVE_EIP712_FULL_SUPPORT

src_features/signMessageEIP712/ui_logic.h

@@ -43,6 +43,9 @@ void ui_712_token_join_prepare_addr_check(uint8_t index);
 void ui_712_token_join_prepare_amount(uint8_t index, const char *name, uint8_t name_length);
 void amount_join_set_token_received(void);
 bool ui_712_show_raw_key(const void *field_ptr);
+#ifdef SCREEN_SIZE_WALLET
+char *get_ui_pairs_buffer(size_t *size);
+#endif
 
 #endif  // HAVE_EIP712_FULL_SUPPORT
 

src_nbgl/ui_sign_712.c

@@ -7,11 +7,28 @@
 #include "common_712.h"
 #include "nbgl_use_case.h"
 #include "ui_message_signing.h"
+#include "ledger_assert.h"
 
-static nbgl_contentTagValue_t pair;
+static nbgl_contentTagValue_t pairs[6];
 static nbgl_contentTagValueList_t pairs_list;
+static uint8_t pair_idx;
+static size_t buf_idx;
 
 static void message_progress(bool confirm) {
+    char *buf;
+    size_t buf_size;
+    size_t shift_off;
+
+    if (pairs_list.nbPairs < pair_idx) {
+        buf = get_ui_pairs_buffer(&buf_size);
+        memmove(&pairs[0], &pairs[pairs_list.nbPairs], sizeof(pairs[0]));
+        memmove(buf, pairs[0].item, (buf + buf_idx) - pairs[0].item);
+        shift_off = pairs[0].item - buf;
+        buf_idx -= shift_off;
+        pairs[0].value -= shift_off;
+        pairs[0].item = buf;
+        pair_idx = 1;
+    }
     if (confirm) {
         if (ui_712_next_field() == EIP712_NO_MORE_FIELD) {
             ui_712_switch_to_sign();
@@ -22,22 +39,40 @@ static void message_progress(bool confirm) {
 }
 
 static void message_update(bool confirm) {
-    if (confirm) {
-        explicit_bzero(&pair, sizeof(pair));
-        explicit_bzero(&pairs_list, sizeof(pairs_list));
+    char *buf;
+    size_t buf_size;
+    size_t buf_off;
+    bool flag;
 
-        pair.item = strings.tmp.tmp2;
-        pair.value = strings.tmp.tmp;
-        pairs_list.nbPairs = 1;
-        pairs_list.pairs = &pair;
-        pairs_list.wrapping = false;
-        nbgl_useCaseReviewStreamingContinue(&pairs_list, message_progress);
+    buf = get_ui_pairs_buffer(&buf_size);
+    if (confirm) {
+        buf_off = strlen(strings.tmp.tmp2) + 1;
+        LEDGER_ASSERT((buf_idx + buf_off) < buf_size, "UI pairs buffer overflow");
+        pairs[pair_idx].item = memmove(buf + buf_idx, strings.tmp.tmp2, buf_off);
+        buf_idx += buf_off;
+        buf_off = strlen(strings.tmp.tmp) + 1;
+        LEDGER_ASSERT((buf_idx + buf_off) < buf_size, "UI pairs buffer overflow");
+        pairs[pair_idx].value = memmove(buf + buf_idx, strings.tmp.tmp, buf_off);
+        buf_idx += buf_off;
+        pair_idx += 1;
+        pairs_list.nbPairs = nbgl_useCaseGetNbTagValuesInPage(pair_idx, &pairs_list, 0, &flag);
+        if (pairs_list.nbPairs < pair_idx) {
+            nbgl_useCaseReviewStreamingContinue(&pairs_list, message_progress);
+        } else {
+            message_progress(true);
+        }
     } else {
         ui_typed_message_review_choice(false);
     }
 }
 
 void ui_712_start(void) {
+    explicit_bzero(&pairs, sizeof(pairs));
+    explicit_bzero(&pairs_list, sizeof(pairs_list));
+    pairs_list.pairs = pairs;
+    pair_idx = 0;
+    buf_idx = 0;
+
     nbgl_useCaseReviewStreamingStart(TYPE_MESSAGE,
                                      &C_Review_64px,
                                      TEXT_REVIEW_EIP712,
@@ -50,7 +85,13 @@ void ui_712_switch_to_message(void) {
 }
 
 void ui_712_switch_to_sign(void) {
-    nbgl_useCaseReviewStreamingFinish(TEXT_SIGN_EIP712, ui_typed_message_review_choice);
+    if (pair_idx > 0) {
+        pairs_list.nbPairs = pair_idx;
+        pair_idx = 0;
+        nbgl_useCaseReviewStreamingContinue(&pairs_list, message_progress);
+    } else {
+        nbgl_useCaseReviewStreamingFinish(TEXT_SIGN_EIP712, ui_typed_message_review_choice);
+    }
 }
 
 #endif  // HAVE_EIP712_FULL_SUPPORT