internal: add a notification on missing qt-wayland packages

fixes #91

hyprland-share-picker/main.cpp

@@ -114,6 +114,7 @@ int main(int argc, char* argv[]) {
             ID             = ID.substr(ID.find_last_of('(') + 1);
             ID             = ID.substr(0, ID.find_last_of(')'));
 
+            std::cout << "[SELECTION]";
             std::cout << (ALLOWTOKENBUTTON->isChecked() ? "r" : "");
             std::cout << "/";
 
@@ -141,6 +142,7 @@ int main(int argc, char* argv[]) {
         mainPickerPtr->windowIDs[button] = window.id;
 
         QObject::connect(button, &QPushButton::clicked, [=]() {
+            std::cout << "[SELECTION]";
             std::cout << (ALLOWTOKENBUTTON->isChecked() ? "r" : "");
             std::cout << "/";
 
@@ -199,6 +201,7 @@ int main(int argc, char* argv[]) {
             REGION       = REGION.substr(REGION.find_first_of(' ') + 1);
             const auto H = std::stoi(REGION);
 
+            std::cout << "[SELECTION]";
             std::cout << (ALLOWTOKENBUTTON->isChecked() ? "r" : "");
             std::cout << "/";
 

src/helpers/MiscFunctions.cpp

@@ -3,6 +3,8 @@
 #include "../helpers/Log.hpp"
 
 std::string execAndGet(const char* cmd) {
+    Debug::log(LOG, "execAndGet: {}", cmd);
+
     std::array<char, 128>                          buffer;
     std::string                                    result;
     const std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd, "r"), pclose);
@@ -14,4 +16,11 @@ std::string execAndGet(const char* cmd) {
         result += buffer.data();
     }
     return result;
+}
+
+void addHyprlandNotification(const std::string& icon, float timeMs, const std::string& color, const std::string& message) {
+    const std::string CMD = std::format("hyprctl notify {} {} {} \"{}\"", icon, timeMs, color, message);
+    Debug::log(LOG, "addHyprlandNotification: {}", CMD);
+    if (fork() == 0)
+        execl("/bin/sh", "/bin/sh", "-c", CMD.c_str(), nullptr);
 }

src/helpers/MiscFunctions.hpp

@@ -1,4 +1,5 @@
 #pragma once
 #include <string>
 
-std::string execAndGet(const char* cmd);
+std::string execAndGet(const char* cmd);
+void addHyprlandNotification(const std::string& icon, float timeMs, const std::string& color, const std::string& message);

src/shared/ScreencopyShared.cpp

@@ -42,15 +42,28 @@ SSelectionData promptForScreencopySelection() {
     const char*    HYPRLAND_INSTANCE_SIGNATURE = getenv("HYPRLAND_INSTANCE_SIGNATURE");
 
     std::string    cmd =
-        std::format("WAYLAND_DISPLAY={} QT_QPA_PLATFORM=\"wayland\" XCURSOR_SIZE={} HYPRLAND_INSTANCE_SIGNATURE={} XDPH_WINDOW_SHARING_LIST=\"{}\" hyprland-share-picker",
+        std::format("WAYLAND_DISPLAY={} QT_QPA_PLATFORM=\"wayland\" XCURSOR_SIZE={} HYPRLAND_INSTANCE_SIGNATURE={} XDPH_WINDOW_SHARING_LIST=\"{}\" hyprland-share-picker 2>&1",
                     WAYLAND_DISPLAY ? WAYLAND_DISPLAY : "", XCURSOR_SIZE ? XCURSOR_SIZE : "24", HYPRLAND_INSTANCE_SIGNATURE ? HYPRLAND_INSTANCE_SIGNATURE : "0", buildWindowList());
 
     const auto RETVAL = execAndGet(cmd.c_str());
 
-    Debug::log(LOG, "[sc] Selection: {}", RETVAL);
+    if (!RETVAL.contains("[SELECTION]")) {
+        // failed
 
-    const auto FLAGS = RETVAL.substr(0, RETVAL.find_first_of('/'));
+        if (RETVAL.contains("qt.qpa.plugin: Could not find the Qt platform plugin")) {
-    const auto SEL   = RETVAL.substr(RETVAL.find_first_of('/') + 1);
+            // prompt the user to install qt5-wayland and qt6-wayland
+            addHyprlandNotification("3", 7000, "0", "[xdph] Could not open the picker: qt5-wayland or qt6-wayland doesn't seem to be installed.");
+        }
+
+        return data;
+    }
+
+    const auto SELECTION = RETVAL.substr(RETVAL.find("[SELECTION]") + 11);
+
+    Debug::log(LOG, "[sc] Selection: {}", SELECTION);
+
+    const auto FLAGS = SELECTION.substr(0, SELECTION.find_first_of('/'));
+    const auto SEL   = SELECTION.substr(SELECTION.find_first_of('/') + 1);
 
     for (auto& flag : FLAGS) {
         if (flag == 'r') {