Wallpaper (Linux): add support for gnome

Author: CarterLi

CMakeLists.txt

@@ -361,7 +361,7 @@ if(LINUX)
         src/detection/terminalshell/terminalshell_linux.c
         src/detection/uptime/uptime_linux.c
         src/detection/users/users_linux.c
-        src/detection/wallpaper/wallpaper_nosupport.c
+        src/detection/wallpaper/wallpaper_linux.c
         src/detection/wifi/wifi_linux.c
         src/detection/wmtheme/wmtheme_linux.c
         src/util/platform/FFPlatform_unix.c
@@ -451,7 +451,7 @@ elseif(BSD)
         src/detection/terminalshell/terminalshell_linux.c
         src/detection/uptime/uptime_bsd.c
         src/detection/users/users_linux.c
-        src/detection/wallpaper/wallpaper_nosupport.c
+        src/detection/wallpaper/wallpaper_linux.c
         src/detection/wifi/wifi_nosupport.c
         src/detection/wmtheme/wmtheme_linux.c
         src/util/platform/FFPlatform_unix.c

src/detection/gtk_qt/gtk.c

@@ -13,7 +13,7 @@ static inline bool allPropertiesSet(FFGTKResult* result)
         result->font.length > 0;
 }
 
-static inline void applyGTKSettings(FFGTKResult* result, const char* themeName, const char* iconsName, const char* fontName, const char* cursorTheme, int cursorSize)
+static inline void applyGTKSettings(FFGTKResult* result, const char* themeName, const char* iconsName, const char* fontName, const char* cursorTheme, int cursorSize, const char* wallpaper)
 {
     if(result->theme.length == 0)
         ffStrbufAppendS(&result->theme, themeName);
@@ -29,6 +29,9 @@ static inline void applyGTKSettings(FFGTKResult* result, const char* themeName,
 
     if(result->cursorSize.length == 0 && cursorSize > 0)
         ffStrbufAppendF(&result->cursorSize, "%i", cursorSize);
+
+    if(result->wallpaper.length == 0)
+        ffStrbufAppendS(&result->wallpaper, wallpaper);
 }
 
 static void detectGTKFromSettings(const FFinstance* instance, FFGTKResult* result)
@@ -40,6 +43,7 @@ static void detectGTKFromSettings(const FFinstance* instance, FFGTKResult* resul
     static const char* fontName = NULL;
     static const char* cursorTheme = NULL;
     static int cursorSize = 0;
+    static const char* wallpaper = NULL;
 
     static bool init = false;
 
@@ -48,7 +52,7 @@ static void detectGTKFromSettings(const FFinstance* instance, FFGTKResult* resul
     if(init)
     {
         ffThreadMutexUnlock(&mutex);
-        applyGTKSettings(result, themeName, iconsName, fontName, cursorTheme, cursorSize);
+        applyGTKSettings(result, themeName, iconsName, fontName, cursorTheme, cursorSize, wallpaper);
         return;
     }
 
@@ -90,10 +94,12 @@ static void detectGTKFromSettings(const FFinstance* instance, FFGTKResult* resul
         fontName = ffSettingsGet(instance, "/org/gnome/desktop/interface/font-name", "org.gnome.desktop.interface", NULL, "font-name", FF_VARIANT_TYPE_STRING).strValue;
         cursorTheme = ffSettingsGet(instance, "/org/gnome/desktop/interface/cursor-theme", "org.gnome.desktop.interface", NULL, "cursor-theme", FF_VARIANT_TYPE_STRING).strValue;
         cursorSize = ffSettingsGet(instance, "/org/gnome/desktop/interface/cursor-size", "org.gnome.desktop.interface", NULL, "cursor-size", FF_VARIANT_TYPE_INT).intValue;
+        wallpaper = ffSettingsGet(instance, "/org/gnome/desktop/background/picture-uri", "org.gnome.desktop.background", NULL, "picture-uri", FF_VARIANT_TYPE_STRING).strValue;
+        // TODO: support other DEs for wallpaper
     }
 
     ffThreadMutexUnlock(&mutex);
-    applyGTKSettings(result, themeName, iconsName, fontName, cursorTheme, cursorSize);
+    applyGTKSettings(result, themeName, iconsName, fontName, cursorTheme, cursorSize, wallpaper);
 }
 
 static void detectGTKFromConfigFile(const char* filename, FFGTKResult* result)
@@ -184,6 +190,7 @@ static void detectGTK(const FFinstance* instance, const char* version, FFGTKResu
     ffStrbufInit(&result.font); \
     ffStrbufInit(&result.cursor); \
     ffStrbufInit(&result.cursorSize); \
+    ffStrbufInit(&result.wallpaper); \
     detectGTK(instance, #version, &result); \
     ffThreadMutexUnlock(&mutex); \
     return &result;

src/detection/gtk_qt/gtk_qt.h

@@ -12,6 +12,7 @@ typedef struct FFGTKResult
     FFstrbuf font;
     FFstrbuf cursor;
     FFstrbuf cursorSize;
+    FFstrbuf wallpaper;
 } FFGTKResult;
 
 typedef struct FFQtResult

src/detection/wallpaper/wallpaper_linux.c

@@ -0,0 +1,17 @@
+#include "wallpaper.h"
+#include "common/settings.h"
+#include "detection/gtk_qt/gtk_qt.h"
+
+const char* ffDetectWallpaper(const FFinstance* instance, FFstrbuf* result)
+{
+    const FFGTKResult* gtk = ffDetectGTK4(instance);
+    if (!gtk->wallpaper.length)
+        return "Failed to detect the current wallpaper path";
+
+    if (ffStrbufStartsWithS(&gtk->wallpaper, "file:///"))
+        ffStrbufAppendS(result, gtk->wallpaper.chars + strlen("file://"));
+    else
+        ffStrbufAppend(result, &gtk->wallpaper);
+
+    return NULL;
+}