Introduce the short_text property on blocks and parse it according to the documentation.

[i3/i3] / i3bar / src / child.c

diff --git a/i3bar/src/child.c b/i3bar/src/child.c
index c0ea36138548066693c9f55851359adcba4cf0b1..521951f5cc664db3f517b9d6b04404c08f9e65f0 100644 (file)
--- a/i3bar/src/child.c
+++ b/i3bar/src/child.c
@@ -54,25 +54,42 @@ typedef struct parser_ctx {
 
 parser_ctx parser_context;
 
-/* The buffer statusline points to */
 struct statusline_head statusline_head = TAILQ_HEAD_INITIALIZER(statusline_head);
+/* Used temporarily while reading a statusline */
+struct statusline_head statusline_buffer = TAILQ_HEAD_INITIALIZER(statusline_buffer);
 
 int child_stdin;
 
 /*
- * Clears all blocks from the statusline structure in memory and frees their
- * associated resources.
+ * Remove all blocks from the given statusline.
+ * If free_resources is set, the fields of each status block will be free'd.
  */
-static void clear_status_blocks() {
+static void clear_statusline(struct statusline_head *head, bool free_resources) {
     struct status_block *first;
-    while (!TAILQ_EMPTY(&statusline_head)) {
-        first = TAILQ_FIRST(&statusline_head);
-        I3STRING_FREE(first->full_text);
-        TAILQ_REMOVE(&statusline_head, first, blocks);
+    while (!TAILQ_EMPTY(head)) {
+        first = TAILQ_FIRST(head);
+        if (free_resources) {
+            I3STRING_FREE(first->full_text);
+            I3STRING_FREE(first->short_text);
+            FREE(first->color);
+            FREE(first->name);
+            FREE(first->instance);
+        }
+
+        TAILQ_REMOVE(head, first, blocks);
         free(first);
     }
 }
 
+static void copy_statusline(struct statusline_head *from, struct statusline_head *to) {
+    struct status_block *current;
+    TAILQ_FOREACH(current, from, blocks) {
+        struct status_block *new_block = smalloc(sizeof(struct status_block));
+        memcpy(new_block, current, sizeof(struct status_block));
+        TAILQ_INSERT_TAIL(to, new_block, blocks);
+    }
+}
+
 /*
  * Replaces the statusline in memory with an error message. Pass a format
  * string and format parameters as you would in `printf'. The next time
@@ -80,7 +97,7 @@ static void clear_status_blocks() {
  * the space allocated for the statusline.
  */
 __attribute__((format(printf, 1, 2))) static void set_statusline_error(const char *format, ...) {
-    clear_status_blocks();
+    clear_statusline(&statusline_head, true);
 
     char *message;
     va_list args;
@@ -126,20 +143,12 @@ void cleanup(void) {
 
 /*
  * The start of a new array is the start of a new status line, so we clear all
- * previous entries.
- *
+ * previous entries from the buffer.
  */
 static int stdin_start_array(void *context) {
-    struct status_block *first;
-    while (!TAILQ_EMPTY(&statusline_head)) {
-        first = TAILQ_FIRST(&statusline_head);
-        I3STRING_FREE(first->full_text);
-        FREE(first->color);
-        FREE(first->name);
-        FREE(first->instance);
-        TAILQ_REMOVE(&statusline_head, first, blocks);
-        free(first);
-    }
+    // the blocks are still used by statusline_head, so we won't free the
+    // resources here.
+    clear_statusline(&statusline_buffer, false);
     return 1;
 }
 
@@ -178,7 +187,10 @@ static int stdin_boolean(void *context, int val) {
 static int stdin_string(void *context, const unsigned char *val, size_t len) {
     parser_ctx *ctx = context;
     if (strcasecmp(ctx->last_map_key, "full_text") == 0) {
-        ctx->block.full_text = i3string_from_utf8_with_length((const char *)val, len);
+        ctx->block.full_text = i3string_from_markup_with_length((const char *)val, len);
+    }
+    if (strcasecmp(ctx->last_map_key, "short_text") == 0) {
+        ctx->block.short_text = i3string_from_markup_with_length((const char *)val, len);
     }
     if (strcasecmp(ctx->last_map_key, "color") == 0) {
         sasprintf(&(ctx->block.color), "%.*s", len, val);
@@ -192,7 +204,7 @@ static int stdin_string(void *context, const unsigned char *val, size_t len) {
             ctx->block.align = ALIGN_LEFT;
         }
     } else if (strcasecmp(ctx->last_map_key, "min_width") == 0) {
-        i3String *text = i3string_from_utf8_with_length((const char *)val, len);
+        i3String *text = i3string_from_markup_with_length((const char *)val, len);
         ctx->block.min_width = (uint32_t)predict_text_width(text);
         i3string_free(text);
     }
@@ -222,6 +234,10 @@ static int stdin_integer(void *context, long long val) {
     return 1;
 }
 
+/*
+ * When a map is finished, we have an entire status block.
+ * Move it from the parser's context to the statusline buffer.
+ */
 static int stdin_end_map(void *context) {
     parser_ctx *ctx = context;
     struct status_block *new_block = smalloc(sizeof(struct status_block));
@@ -232,15 +248,24 @@ static int stdin_end_map(void *context) {
         new_block->full_text = i3string_from_utf8("SPEC VIOLATION: full_text is NULL!");
     if (new_block->urgent)
         ctx->has_urgent = true;
-    TAILQ_INSERT_TAIL(&statusline_head, new_block, blocks);
+    TAILQ_INSERT_TAIL(&statusline_buffer, new_block, blocks);
     return 1;
 }
 
+/*
+ * When an array is finished, we have an entire statusline.
+ * Copy it from the buffer to the actual statusline.
+ */
 static int stdin_end_array(void *context) {
+    DLOG("copying statusline_buffer to statusline_head\n");
+    clear_statusline(&statusline_head, true);
+    copy_statusline(&statusline_buffer, &statusline_head);
+
     DLOG("dumping statusline:\n");
     struct status_block *current;
     TAILQ_FOREACH(current, &statusline_head, blocks) {
         DLOG("full_text = %s\n", i3string_as_utf8(current->full_text));
+        DLOG("short_text = %s\n", i3string_as_utf8(current->short_text));
         DLOG("color = %s\n", current->color);
     }
     DLOG("end of dump\n");
@@ -300,7 +325,7 @@ static void read_flat_input(char *buffer, int length) {
         buffer[length - 1] = '\0';
     else
         buffer[length] = '\0';
-    first->full_text = i3string_from_utf8(buffer);
+    first->full_text = i3string_from_markup(buffer);
 }
 
 static bool read_json_input(unsigned char *input, int length) {