temp/xfce4-battery-plugin: fix battery capacity detection (!595)

If someone also noticed the missing battery icon in the xfce4 panel,
please test with this patched plugin and report back. Thanks.

temp/xfce4-battery-plugin/00-fix-percentage-detection.patch

@@ -0,0 +1,71 @@
+diff --git a/panel-plugin/battery.c b/panel-plugin/battery.c
+index b730274..aa0d993 100644
+--- a/panel-plugin/battery.c
++++ b/panel-plugin/battery.c
+@@ -160,6 +160,7 @@ update_apm_status(t_battmon *battmon)
+     int method = BM_BROKEN;
+     int present = 0, charge = 0, rate = 0;
+     int lcapacity = 0, ccapacity = 0;
++    int percentage = 0;
+     gboolean fan = FALSE;
+     const char *temp;
+     static int old_state = -1, new_state = BM_MISSING;
+@@ -216,6 +217,7 @@ update_apm_status(t_battmon *battmon)
+             lcapacity += acpiinfo->last_full_capacity;
+             ccapacity += acpistate->rcapacity;
+             rate += acpistate->prate;
++            percentage += acpistate->percentage;
+         }
+ 
+         sum_lcapacity += lcapacity;
+@@ -241,7 +243,10 @@ update_apm_status(t_battmon *battmon)
+             rate = last_rate;
+         }
+ 
+-        charge = (((float)ccapacity)/((float)lcapacity))*100;
++        if (lcapacity > 0)
++            charge = (((float)ccapacity)/((float)lcapacity))*100;
++        else if (percentage > 0 && present > 0)
++            charge = percentage/present;
+ 
+         if (last_acline)
+             time_remaining = ((float)(lcapacity-ccapacity)/(float)(rate))*60;
+diff --git a/panel-plugin/libacpi.c b/panel-plugin/libacpi.c
+index 0755585..2737fe3 100644
+--- a/panel-plugin/libacpi.c
++++ b/panel-plugin/libacpi.c
+@@ -518,6 +518,7 @@ read_acpi_state_sysfs(int battery)
+     DIR *sysfs;
+     struct dirent *propety;
+     char *name;
++    int percentage_found;
+ 
+     sysfs = opendir(batteries[battery]);
+     if (sysfs == 0)
+@@ -559,7 +560,11 @@ read_acpi_state_sysfs(int battery)
+         {
+             sprintf(buf,"%s/%s",batteries[battery], name);
+             acpistate->rcapacity = read_sysfs_int(buf);
+-            acpistate->percentage = (((float) acpistate->rcapacity)/acpiinfo->last_full_capacity) * 100;
++            /* calculate percentage based on remaining capacity only if actual percentage is not found */
++            if (!percentage_found)
++            {
++                acpistate->percentage = (((float) acpistate->rcapacity)/acpiinfo->last_full_capacity) * 100;
++            }
+         }
+ 
+         if ((strcmp(name,"current_now") == 0) || (strcmp(name,"power_now") == 0))
+@@ -577,6 +582,13 @@ read_acpi_state_sysfs(int battery)
+             sprintf(buf,"%s/%s",batteries[battery], name);
+             acpistate->pvoltage = read_sysfs_int(buf);
+         }
++
++        if (strcmp(name,"capacity") == 0)
++        {
++            sprintf(buf,"%s/%s",batteries[battery], name);
++            acpistate->percentage = read_sysfs_int(buf);
++            percentage_found = 1;
++        }
+     }
+ 
+     closedir(sysfs);

temp/xfce4-battery-plugin/APKBUILD

@@ -0,0 +1,30 @@
+# Forked from Alpine to fix battery percentage detection
+
+pkgname=xfce4-battery-plugin
+pkgver=1.1.3
+pkgrel=1
+pkgdesc="A battery monitor plugin for the Xfce panel"
+url="http://goodies.xfce.org/projects/panel-plugins/xfce4-battery-plugin"
+arch="all"
+license="GPL-2.0-or-later"
+makedepends="xfce4-panel-dev libxfce4ui-dev perl-xml-parser intltool linux-headers"
+subpackages="$pkgname-lang"
+source="https://archive.xfce.org/src/panel-plugins/xfce4-battery-plugin/${pkgver%.*}/xfce4-battery-plugin-$pkgver.tar.bz2
+	00-fix-percentage-detection.patch
+	"
+build() {
+	./configure \
+		--prefix=/usr \
+		--sysconfdir=/etc \
+		--libexecdir=/usr/lib \
+		--localstatedir=/var \
+		--disable-static
+	make
+}
+
+package() {
+	make DESTDIR="$pkgdir" install
+}
+
+sha512sums="a591fb37855efbd54d18ae97e320fa4521da611c8ea107813bfd66fa570e8c84576fcf779c7b676ee9918709912de728b0fed490e64d3d2ad403baf719db4520  xfce4-battery-plugin-1.1.3.tar.bz2
+b40d122d5b80ac548f739dcda3e9a049b9183b5aa8d0f2e0e5b7f4bb91024bdc0722ecb6492dc0296c6b0a50598a871a254181f33ce3cea2f4bdd7a64b32343e  00-fix-percentage-detection.patch"

temp/xfce4-battery-plugin/fix-includes.patch

@@ -0,0 +1,19 @@
+--- a/panel-plugin/libacpi.c
++++ b/panel-plugin/libacpi.c
+@@ -29,7 +29,6 @@
+ #include <sys/types.h>
+ #include <dirent.h>
+ #include <glob.h>
+-#include <unistd.h>
+ 
+ #ifdef __FreeBSD__
+ #include <fcntl.h>
+@@ -55,6 +54,8 @@
+ #include <errno.h>
+ 
+ #endif
++
++#include <unistd.h>
+ 
+ #include "libacpi.h"
+