e: Initial commit of music control module

demarchi: There are some coding style issues, particularly on .edc
files, but they will be fixed on a later commit.

Patch by: José Roberto de Souza  <zehortigoza@profusion.mobi>



SVN revision: 81988

configure.ac

@@ -674,6 +674,12 @@ define([CHECK_MODULE_TEMPERATURE],
   AC_E_CHECK_PKG(TEMPERATURE, [ ecore >= $efl_version ecore-file >= $efl_version eina >= $efl_version ], [], [TEMPERATURE=false])
 ])
 
+AM_CONDITIONAL(MUSIC_CONTROL, false)
+define([CHECK_MODULE_MUSIC_CONTROL],
+[
+  AC_E_CHECK_PKG(MUSIC_CONTROL, [ ecore >= 1.2.0 eina >= 1.2.0 edbus2 ], [], [MUSIC_CONTROL=false])
+])
+
 ##have_exchange=no
 ##AC_ARG_ENABLE(exchange,
 ##  AC_HELP_STRING([--disable-exchange], [disable Exchange support @<:@default=detect@:>@]),
@@ -863,6 +869,7 @@ AC_E_OPTIONAL_MODULE([conf_randr], true)
 AC_E_OPTIONAL_MODULE([xkbswitch], true)
 AC_E_OPTIONAL_MODULE([tiling], true)
 AC_E_OPTIONAL_MODULE([access], true)
+AC_E_OPTIONAL_MODULE([music_control], true, [CHECK_MODULE_MUSIC_CONTROL])
 
 SUSPEND=""
 HIBERNATE=""
@@ -969,6 +976,7 @@ src/modules/tasks/module.desktop
 src/modules/xkbswitch/module.desktop
 src/modules/tiling/module.desktop
 src/modules/access/module.desktop
+src/modules/music-control/module.desktop
 data/Makefile
 data/images/Makefile
 data/flags/Makefile

src/modules/Makefile.am

@@ -226,6 +226,10 @@ if USE_MODULE_ACCESS
 include Makefile_access.am
 endif
 
+if USE_MODULE_MUSIC_CONTROL
+include Makefile_music_control.am
+endif
+
 #if HAVE_WAYLAND_DRM
 #include Makefile_wl_drm.am
 #endif

src/modules/Makefile_music_control.am

@@ -0,0 +1,14 @@
+music_controldir = $(MDIR)/music-control
+music_control_DATA = music-control/e-module-music-control.edj \
+	                 music-control/module.desktop
+
+EXTRA_DIST += $(music_control_DATA)
+
+music_controlpkgdir = $(MDIR)/music-control/$(MODULE_ARCH)
+music_controlpkg_LTLIBRARIES = music-control/module.la
+
+music_control_module_la_DEPENDENCIES = $(MDEPENDENCIES)
+music_control_module_la_CFLAGS = $(AM_CFLAGS) -Wno-unused-parameter
+music_control_module_la_LIBADD = @MUSIC_CONTROL_LIBS@
+music_control_module_la_SOURCES  = music-control/e_mod_main.h \
+			                       music-control/e_mod_main.c

src/modules/music-control/e-module-music-control.edc

@@ -0,0 +1,76 @@
+images {
+   image: "images/icon.png" COMP;
+}
+
+collections {
+	group {
+		name: "icon";
+		max: 24 24;
+		parts {
+			part {
+				name: "image";
+				mouse_events: 0;
+				type: IMAGE;
+				description {
+					state: "default" 0.0;
+					aspect: 1.0 1.0;
+					aspect_preference: BOTH;
+					image.normal: "images/icon.png";
+				}
+			}
+		}
+	}	
+	group {
+		name: "modules/music-control/main";
+		min: 16 16;
+		max: 128 128;
+		parts {
+			part {
+				name: "icon";
+		  		mouse_events: 0;
+		  		type: IMAGE;
+		  		description {
+		       		state: "default" 0.0;
+		       		aspect: 1.0 1.0;
+		       		aspect_preference: BOTH;
+		       		rel1.offset: 2 2;
+		       		rel2.offset: -3 -3;
+		       		image.normal: "images/icon.png";
+		       	}
+		    	description {
+		    		state: "bigger" 0.0;
+		    		inherit: "default" 0.0;
+		      		rel1.offset: -2 -2;
+					rel2.offset: 3 3;
+				}
+			}
+			part {
+		  		name: "event";
+		  		mouse_events: 1;
+		  		type: RECT;
+		  		description {
+		       		state: "default" 0.0;
+		       		color: 255 255 255 0;
+		    	}
+			}
+		}
+		programs {
+			program {
+				name: "mouse_in";
+				signal: "mouse,in";
+				source: "event";
+				action: STATE_SET "bigger" 0.0;
+				transition: LINEAR 0.1;
+				target: "icon";
+			}
+			program {
+				name: "mouse_out";
+				signal: "mouse,out";
+				source: "event";
+				action: STATE_SET "default" 0.0;
+				transition: LINEAR 0.2;
+				target: "icon";
+			}
+		}
+	}
+}

src/modules/music-control/e_mod_main.c

@@ -0,0 +1,177 @@
+#include "e.h"
+#include "e_mod_main.h"
+
+static E_Module *music_control_mod = NULL;
+
+static char tmpbuf[4096]; /* general purpose buffer, just use immediately */
+
+static const char _e_music_control_Name[] = "Music controller";
+
+static void
+_cb_mouse_down(void *data, Evas *evas, Evas_Object *obj, void *event)
+{
+   E_Music_Control_Instance *inst = data;
+   Evas_Event_Mouse_Down *ev = event;
+
+   printf("event mouse down button=%d\n", ev->button);
+}
+
+static const char *
+_edj_path_get(void)
+{
+#define TF "/e-module-music-control.edj"
+   size_t dirlen;
+
+   dirlen = strlen(music_control_mod->dir);
+   if (dirlen >= sizeof(tmpbuf) - sizeof(TF))
+     return NULL;
+
+   memcpy(tmpbuf, music_control_mod->dir, dirlen);
+   memcpy(tmpbuf + dirlen, TF, sizeof(TF));
+
+   return tmpbuf;
+#undef TF
+}
+
+/* Gadcon Api Functions */
+static E_Gadcon_Client *
+_gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style)
+{
+   E_Music_Control_Instance *inst;
+   E_Music_Control_Module_Context *ctxt;
+
+   EINA_SAFETY_ON_NULL_RETURN_VAL(music_control_mod, NULL);
+   ctxt = music_control_mod->data;
+
+   inst = calloc(1, sizeof(E_Music_Control_Instance));
+   inst->ctxt = ctxt;
+   inst->gadget = edje_object_add(gc->evas);
+   edje_object_file_set(inst->gadget, _edj_path_get(),
+                        "modules/music-control/main");
+   /*e_theme_edje_object_set(inst->gadget, "base/theme/modules/music-control",
+                           "e/modules/music-control/main");*/
+
+   inst->gcc = e_gadcon_client_new(gc, name, id, style, inst->gadget);
+   inst->gcc->data = inst;
+
+
+   evas_object_event_callback_add(inst->gadget, EVAS_CALLBACK_MOUSE_DOWN, _cb_mouse_down, inst);
+
+   return inst->gcc;
+}
+
+static void
+_gc_shutdown(E_Gadcon_Client *gcc)
+{
+   E_Music_Control_Instance *inst;
+   E_Music_Control_Module_Context *ctxt;
+
+   EINA_SAFETY_ON_NULL_RETURN(music_control_mod);
+
+   ctxt = music_control_mod->data;
+   inst = gcc->data;
+
+   evas_object_del(inst->gadget);
+   ctxt->instances = eina_list_remove(ctxt->instances, inst);
+
+   free(inst);
+}
+
+static void
+_gc_orient(E_Gadcon_Client *gcc, E_Gadcon_Orient orient)
+{
+   e_gadcon_client_aspect_set(gcc, 16, 16);
+   e_gadcon_client_min_size_set(gcc, 16, 16);
+}
+
+static const char *
+_gc_label(const E_Gadcon_Client_Class *client_class)
+{
+   return _e_music_control_Name;
+}
+
+static Evas_Object *
+_gc_icon(const E_Gadcon_Client_Class *client_class, Evas *evas)
+{
+   Evas_Object *o = edje_object_add(evas);
+   edje_object_file_set(o, _edj_path_get(), "icon");
+   return o;
+}
+
+static const char *
+_gc_id_new(const E_Gadcon_Client_Class *client_class)
+{
+   E_Music_Control_Module_Context *ctxt;
+   EINA_SAFETY_ON_NULL_RETURN_VAL(music_control_mod, NULL);
+   ctxt = music_control_mod->data;
+
+   snprintf(tmpbuf, sizeof(tmpbuf), "music-control.%d",
+            eina_list_count(ctxt->instances));
+   return tmpbuf;
+}
+
+static const E_Gadcon_Client_Class _gc_class =
+{
+   GADCON_CLIENT_CLASS_VERSION, "music-control",
+   {
+      _gc_init, _gc_shutdown, _gc_orient, _gc_label, _gc_icon, _gc_id_new, NULL,
+      e_gadcon_site_is_not_toolbar
+   },
+   E_GADCON_CLIENT_STYLE_PLAIN
+};
+
+EAPI E_Module_Api e_modapi = { E_MODULE_API_VERSION, _e_music_control_Name };
+
+EAPI void *
+e_modapi_init(E_Module *m)
+{
+   E_Music_Control_Module_Context *ctxt;
+
+   ctxt = calloc(1, sizeof(E_Music_Control_Module_Context));
+   EINA_SAFETY_ON_NULL_RETURN_VAL(ctxt, NULL);
+   edbus_init();
+   ctxt->conn = edbus_connection_get(EDBUS_CONNECTION_TYPE_SESSION);
+   EINA_SAFETY_ON_NULL_GOTO(ctxt->conn, error_dbus_bus_get);
+
+   music_control_mod = m;
+
+   e_gadcon_provider_register(&_gc_class);
+
+   return ctxt;
+
+error_dbus_bus_get:
+   free(ctxt);
+   return NULL;
+}
+
+EAPI int
+e_modapi_shutdown(E_Module *m)
+{
+   E_Music_Control_Module_Context *ctxt;
+   EINA_SAFETY_ON_NULL_RETURN_VAL(music_control_mod, 0);
+   ctxt = music_control_mod->data;
+
+   edbus_connection_unref(ctxt->conn);
+   edbus_shutdown();
+
+   e_gadcon_provider_unregister(&_gc_class);
+
+   if (eina_list_count(ctxt->instances))
+     ERR("Live instances.");
+
+   free(ctxt);
+   music_control_mod = NULL;
+
+   return 1;
+}
+
+EAPI int
+e_modapi_save(E_Module *m)
+{
+   E_Music_Control_Module_Context *ctxt;
+
+   ctxt = m->data;
+   if (!ctxt)
+     return 0;
+   return 1;
+}

src/modules/music-control/e_mod_main.h

@@ -0,0 +1,26 @@
+#ifndef E_MOD_MAIN_H
+#define E_MOD_MAIN_H
+
+#include "config.h"
+#include <e.h>
+#include <eina_log.h>
+
+typedef struct _E_Music_Control_Module_Context
+{
+   Eina_List *instances;
+   EDBus_Connection *conn;
+} E_Music_Control_Module_Context;
+
+typedef struct _E_Music_Control_Instance
+{
+   E_Music_Control_Module_Context *ctxt;
+   E_Gadcon_Client *gcc;
+   Evas_Object *gadget;
+} E_Music_Control_Instance;
+
+EAPI extern E_Module_Api e_modapi;
+EAPI void *e_modapi_init(E_Module *m);
+EAPI int e_modapi_shutdown(E_Module *m);
+EAPI int e_modapi_save(E_Module *m);
+
+#endif

src/modules/music-control/module.desktop.in

@@ -0,0 +1,6 @@
+[Desktop Entry]
+Type=Link
+Name=Music Control
+Icon=e-module-music-control
+Comment=Control your music in your shelf
+X-Enlightenment-ModuleType=utils