New Touchscreen region type... 'mute' which un/mutes volume without pausing playback

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29046 a1c6a512-1295-4272-9138-f99709370657

apps/action.h

@@ -246,6 +246,7 @@ enum {
      * being used, but are nice additions if the touchscreen is used */
     ACTION_TOUCH_SHUFFLE,
     ACTION_TOUCH_REPMODE,
+    ACTION_TOUCH_MUTE,
 #endif    
 
     /* USB HID codes */

apps/gui/skin_engine/skin_parser.c

@@ -880,6 +880,7 @@ static const struct touchaction touchactions[] = {
     { "resumeplayback", ACTION_TREE_WPS}, /* returns to previous music, WPS/FM */
     /* not really WPS specific, but no equivilant ACTION_STD_* */
     {"voldown", ACTION_WPS_VOLDOWN},    {"volup", ACTION_WPS_VOLUP},
+    {"mute", ACTION_TOUCH_MUTE },
     
     /* generic settings changers */
     {"setting_inc", ACTION_SETTINGS_INC}, {"setting_dec", ACTION_SETTINGS_DEC}, 
@@ -945,7 +946,7 @@ static int parse_touchregion(struct skin_element *element,
     region->wvp = curr_vp;
     region->armed = false;
     region->reverse_bar = false;
-    region->extradata = NULL;
+    region->data = NULL;
     action = element->params[4].data.text;
 
     strcpy(temp, action);
@@ -998,7 +999,7 @@ static int parse_touchregion(struct skin_element *element,
                                 break;
                         if (j==nb_settings)
                             return WPS_ERROR_INVALID_PARAM;
-                        region->extradata = (void*)&settings[j];
+                        region->data = (void*)&settings[j];
                     }
                 }
                 break;
@@ -1011,6 +1012,13 @@ static int parse_touchregion(struct skin_element *element,
     if (!item)
         return WPS_ERROR_INVALID_PARAM;
     add_to_ll_chain(&wps_data->touchregions, item);
+    
+    if (region->action == ACTION_TOUCH_MUTE)
+    {
+        region->value = global_settings.volume;
+    }
+        
+    
     return 0;
 }
 #endif

apps/gui/skin_engine/wps_internals.h

@@ -196,7 +196,10 @@ struct touchregion {
     int action;              /* action this button will return */
     bool armed;              /* A region is armed on press. Only armed regions are triggered
                                 on repeat or release. */
-    void* extradata;
+    union {                  /* Extra data, action dependant */
+        void* data;
+        int   value;
+    };
 };
 #endif
 

apps/gui/statusbar-skinned.c

@@ -39,6 +39,10 @@
 #include "font.h"
 #include "icon.h"
 #include "option_select.h"
+#ifdef HAVE_TOUCHSCREEN
+#include "sound.h"
+#include "misc.h"
+#endif
 
 /* initial setup of wps_data  */
 static int update_delay = DEFAULT_UPDATE_DELAY;
@@ -296,10 +300,23 @@ int sb_touch_to_button(int context)
         case ACTION_SETTINGS_INC:
         case ACTION_SETTINGS_DEC:
         {
-            const struct settings_list *setting = region->extradata;
+            const struct settings_list *setting = region->data;
             option_select_next_val(setting, button == ACTION_SETTINGS_DEC, true);
         }
         return ACTION_REDRAW;
+        case ACTION_TOUCH_MUTE:
+        {
+            const int min_vol = sound_min(SOUND_VOLUME);
+            if (global_settings.volume == min_vol)
+                global_settings.volume = region->value;
+            else
+            {
+                region->value = global_settings.volume;
+                global_settings.volume = min_vol;
+            }
+            setvol();
+        }
+        return ACTION_REDRAW;
         /* TODO */
     }
     return button;

apps/gui/wps.c

@@ -242,10 +242,23 @@ static int skintouch_to_wps(struct wps_data *data)
         case ACTION_SETTINGS_INC:
         case ACTION_SETTINGS_DEC:
         {
-            const struct settings_list *setting = region->extradata;
+            const struct settings_list *setting = region->data;
             option_select_next_val(setting, button == ACTION_SETTINGS_DEC, true);
         }
         return ACTION_REDRAW;
+        case ACTION_TOUCH_MUTE:
+        {
+            const int min_vol = sound_min(SOUND_VOLUME);
+            if (global_settings.volume == min_vol)
+                global_settings.volume = region->value;
+            else
+            {
+                region->value = global_settings.volume;
+                global_settings.volume = min_vol;
+            }
+            setvol();
+        }
+        return ACTION_REDRAW;
     }
     return button;
 }

apps/radio/radio_skin.c

@@ -32,6 +32,10 @@
 #include "appevents.h"
 #include "statusbar-skinned.h"
 #include "option_select.h"
+#ifdef HAVE_TOUCHSCREEN
+#include "sound.h"
+#include "misc.h"
+#endif
 
 
 char* default_radio_skin(enum screen_type screen)
@@ -120,10 +124,23 @@ int fms_do_button_loop(bool update_screen)
         case ACTION_SETTINGS_INC:
         case ACTION_SETTINGS_DEC:
         {
-            const struct settings_list *setting = region->extradata;
+            const struct settings_list *setting = region->data;
             option_select_next_val(setting, button == ACTION_SETTINGS_DEC, true);
         }
         return ACTION_REDRAW;
+        case ACTION_TOUCH_MUTE:
+        {
+            const int min_vol = sound_min(SOUND_VOLUME);
+            if (global_settings.volume == min_vol)
+                global_settings.volume = region->value;
+            else
+            {
+                region->value = global_settings.volume;
+                global_settings.volume = min_vol;
+            }
+            setvol();
+        }
+        return ACTION_REDRAW;
     }   
 #endif
     return button;

manual/appendix/wps_tags.tex

@@ -615,6 +615,7 @@ display cycling round the defined sublines. See
     \item[pitch] -- Open the pitchscreen.
     \item[voldown] -- Decrease the volume by one step.
     \item[volup] -- Increase the volume by one step.
+    \item[mute] -- Un/Mute playback.
   \end{description}
 
   \section{Last Touchscreen Press}