animations: Add option for animating workspaces as if the first and last were adjacent (#10277)

* add option for animating workspaces as if the first and last were adjacent

* change wraparound detection to use IDs instead of dispatcher

* move shouldWraparound from MiscFunctions to Monitor

src/config/ConfigDescriptions.hpp

@@ -372,6 +372,12 @@ inline static const std::vector<SConfigOptionDescription> CONFIG_OPTIONS = {
         .type        = CONFIG_OPTION_BOOL,
         .data        = SConfigOptionDescription::SBoolData{true},
     },
+    SConfigOptionDescription{
+        .value       = "animations:workspace_wraparound",
+        .description = "changes the direction of slide animations between the first and last workspaces",
+        .type        = CONFIG_OPTION_BOOL,
+        .data        = SConfigOptionDescription::SBoolData{true},
+    },
 
     /*
      * input:

src/config/ConfigManager.cpp

@@ -610,6 +610,7 @@ CConfigManager::CConfigManager() {
 
     registerConfigVar("animations:enabled", Hyprlang::INT{1});
     registerConfigVar("animations:first_launch_animation", Hyprlang::INT{1});
+    registerConfigVar("animations:workspace_wraparound", Hyprlang::INT{0});
 
     registerConfigVar("input:follow_mouse", Hyprlang::INT{1});
     registerConfigVar("input:follow_mouse_threshold", Hyprlang::FLOAT{0});

src/helpers/Monitor.cpp

@@ -1100,6 +1100,25 @@ float CMonitor::getDefaultScale() {
     return 1;
 }
 
+static bool shouldWraparound(const WORKSPACEID id1, const WORKSPACEID id2) {
+    static auto PWORKSPACEWRAPAROUND = CConfigValue<Hyprlang::INT>("animations:workspace_wraparound");
+
+    if (!*PWORKSPACEWRAPAROUND)
+        return false;
+
+    WORKSPACEID lowestID  = INT64_MAX;
+    WORKSPACEID highestID = INT64_MIN;
+
+    for (auto const& w : g_pCompositor->m_workspaces) {
+        if (w->m_id < 0 || w->m_isSpecialWorkspace)
+            continue;
+        lowestID  = std::min(w->m_id, lowestID);
+        highestID = std::max(w->m_id, highestID);
+    }
+
+    return std::min(id1, id2) == lowestID && std::max(id1, id2) == highestID;
+}
+
 void CMonitor::changeWorkspace(const PHLWORKSPACE& pWorkspace, bool internal, bool noMouseMove, bool noFocus) {
     if (!pWorkspace)
         return;
@@ -1123,7 +1142,7 @@ void CMonitor::changeWorkspace(const PHLWORKSPACE& pWorkspace, bool internal, bo
     m_activeWorkspace = pWorkspace;
 
     if (!internal) {
-        const auto ANIMTOLEFT = POLDWORKSPACE && pWorkspace->m_id > POLDWORKSPACE->m_id;
+        const auto ANIMTOLEFT = POLDWORKSPACE && (shouldWraparound(pWorkspace->m_id, POLDWORKSPACE->m_id) ^ (pWorkspace->m_id > POLDWORKSPACE->m_id));
         if (POLDWORKSPACE)
             POLDWORKSPACE->startAnim(false, ANIMTOLEFT);
         pWorkspace->startAnim(true, ANIMTOLEFT);