text viewer: for tv_action and tv_bookmark, the prototype of the initializer is the same arguments as other modules.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27243 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/text_viewer/text_viewer.c

@@ -35,13 +35,23 @@ enum plugin_status plugin_start(const void* file)
     long old_tick;
     bool done = false;
     bool display_update = true;
+    size_t size;
+    unsigned char *plugin_buf;
 
     old_tick = *rb->current_tick;
 
     if (!file)
         return PLUGIN_ERROR;
 
-    if (!tv_init(file)) {
+    /* get the plugin buffer */
+    plugin_buf = rb->plugin_get_buffer(&size);
+
+    if (!tv_init_action(&plugin_buf, &size)) {
+        rb->splash(HZ, "Error initialize");
+        return PLUGIN_ERROR;
+    }
+
+    if (!tv_load_file(file)) {
         rb->splash(HZ, "Error opening file");
         return PLUGIN_ERROR;
     }

apps/plugins/text_viewer/tv_action.c

@@ -28,26 +28,23 @@
 #include "tv_settings.h"
 #include "tv_window.h"
 
-bool tv_init(const unsigned char *file)
+bool tv_init_action(unsigned char **buf, size_t *size)
 {
-    size_t size;
+    /* initialize bookmarks and window modules */
+    return tv_init_bookmark(buf, size) && tv_init_window(buf, size);
+}
 
-    /* get the plugin buffer */
-    unsigned char *buf = rb->plugin_get_buffer(&size);
+static void tv_finalize_action(void)
+{
+    /* save preference and bookmarks */
+    if (!tv_save_settings())
+        rb->splash(HZ, "Can't save preferences and bookmarks");
 
-    tv_init_bookmark();
+    /* finalize bookmark modules */
+    tv_finalize_bookmark();
 
-    /* initialize modules */
-    if (!tv_init_window(&buf, &size))
-        return false;
-
-    /* load the preferences and bookmark */
-    if (!tv_load_settings(file))
-        return false;
-
-    /* select to read the page */
-    tv_select_bookmark();
-    return true;
+    /* finalize window modules */
+    tv_finalize_window();
 }
 
 void tv_exit(void *parameter)
@@ -59,7 +56,19 @@ void tv_exit(void *parameter)
         rb->splash(HZ, "Can't save preferences and bookmarks");
 
     /* finalize modules */
-    tv_finalize_window();
+    tv_finalize_action();
+}
+
+bool tv_load_file(const unsigned char *file)
+{
+    /* load the preferences and bookmark */
+    if (!tv_load_settings(file))
+        return false;
+
+    /* select to read the page */
+    tv_select_bookmark();
+
+    return true;
 }
 
 void tv_draw(void)

apps/plugins/text_viewer/tv_action.h

@@ -42,16 +42,19 @@ enum
 };
 
 /*
- * initialize modules
+ * initialize the action module
  *
- * [In] file
- *          read file name
+ * [In/Out] buf
+ *          the start pointer of the buffer
+ *
+ * [In/Out] size
+ *          buffer size
  *
  * return
  *     true  initialize success
  *     false initialize failure
  */
-bool tv_init(const unsigned char *file);
+bool tv_init_action(unsigned char **buf, size_t *bufsize);
 
 /*
  * finalize modules
@@ -61,6 +64,18 @@ bool tv_init(const unsigned char *file);
  */
 void tv_exit(void *parameter);
 
+/*
+ * load the file
+ *
+ * [In] file
+ *          read file name
+ *
+ * return
+ *     true  load success
+ *     false load failure
+ */
+bool tv_load_file(const unsigned char *file);
+
 /* draw the current page */
 void tv_draw(void);
 

apps/plugins/text_viewer/tv_bookmark.c

@@ -110,9 +110,18 @@ static int tv_change_preferences(const struct tv_preferences *oldp)
     return TV_CALLBACK_OK;
 }
 
-void tv_init_bookmark(void)
+bool tv_init_bookmark(unsigned char **buf, size_t *size)
 {
+    (void)buf;
+    (void)size;
+
     tv_add_preferences_change_listner(tv_change_preferences);
+    return true;
+}
+
+void tv_finalize_bookmark(void)
+{
+    /* no-operation function */
 }
 
 int tv_get_bookmark_positions(struct tv_screen_pos *pos_array)

apps/plugins/text_viewer/tv_bookmark.h

@@ -30,8 +30,23 @@
 /* Maximum amount of register possible bookmarks */
 #define TV_MAX_BOOKMARKS 16
 
-/* initialize the bookmark module */
-void tv_init_bookmark(void);
+/*
+ * initialize the bookmark module
+ *
+ * [In/Out] buf
+ *          the start pointer of the buffer
+ *
+ * [In/Out] size
+ *          buffer size
+ *
+ * return
+ *     true  initialize success
+ *     false initialize failure
+ */
+bool tv_init_bookmark(unsigned char **buf, size_t *size);
+
+/* finalize the bookmark module */
+void tv_finalize_bookmark(void);
 
 /*
  * get the positions which registered bookmarks