nix-config/patches/hyprland-slidefade-animation.patch

From 37a211a2ae94abad0f606433a58603e70261d0bb Mon Sep 17 00:00:00 2001
From: end-4 <97237370+end-4@users.noreply.github.com>
Date: Fri, 18 Aug 2023 03:30:20 +0700
Subject: [PATCH] animations: add slidefade and slidefadevert styles for
 workspaces (#3008)

* add slidefade and slidefadevert animations

* fix swiping for slidefadevert

* rename minPerc to movePerc for slidefade anim styles

* change default slidefade percentage to 100%

* remove useless comments

* findlastof + 1

* debug logging for slidefade/slidefadevert percentage
---
 src/helpers/Workspace.cpp         | 41 ++++++++++++++++++++++++++++++-
 src/managers/AnimationManager.cpp | 16 ++++++++++++
 src/managers/input/Swipe.cpp      |  6 +++--
 3 files changed, 60 insertions(+), 3 deletions(-)

diff --git a/src/helpers/Workspace.cpp b/src/helpers/Workspace.cpp
index a71dd55dea..eddd214328 100644
--- a/src/helpers/Workspace.cpp
+++ b/src/helpers/Workspace.cpp
@@ -58,7 +58,46 @@ CWorkspace::~CWorkspace() {
 void CWorkspace::startAnim(bool in, bool left, bool instant) {
     const auto ANIMSTYLE = m_fAlpha.m_pConfig->pValues->internalStyle;
 
-    if (ANIMSTYLE == "fade") {
+    if (ANIMSTYLE.find("slidefade") == 0) {
+        const auto PMONITOR = g_pCompositor->getMonitorFromID(m_iMonitorID);
+        float      movePerc = 100.f;
+
+        if (ANIMSTYLE.find("%") != std::string::npos) {
+            try {
+                auto percstr = ANIMSTYLE.substr(ANIMSTYLE.find_last_of(' ') + 1);
+                movePerc     = std::stoi(percstr.substr(0, percstr.length() - 1));
+            } catch (std::exception& e) {
+                Debug::log(ERR, "Error in startAnim: invalid percentage");
+            }
+        }
+
+        m_fAlpha.setValueAndWarp(1.f);
+        m_vRenderOffset.setValueAndWarp(Vector2D(0, 0));
+
+        if (ANIMSTYLE.find("slidefadevert") == 0) {
+            if (in) {
+                m_fAlpha.setValueAndWarp(0.f);
+                m_vRenderOffset.setValueAndWarp(Vector2D(0, (left ? PMONITOR->vecSize.y : -PMONITOR->vecSize.y) * (movePerc / 100.f)));
+                m_fAlpha        = 1.f;
+                m_vRenderOffset = Vector2D(0, 0);
+            } else {
+                m_fAlpha.setValueAndWarp(1.f);
+                m_fAlpha        = 0.f;
+                m_vRenderOffset = Vector2D(0, (left ? -PMONITOR->vecSize.y : PMONITOR->vecSize.y) * (movePerc / 100.f));
+            }
+        } else {
+            if (in) {
+                m_fAlpha.setValueAndWarp(0.f);
+                m_vRenderOffset.setValueAndWarp(Vector2D((left ? PMONITOR->vecSize.x : -PMONITOR->vecSize.x) * (movePerc / 100.f), 0));
+                m_fAlpha        = 1.f;
+                m_vRenderOffset = Vector2D(0, 0);
+            } else {
+                m_fAlpha.setValueAndWarp(1.f);
+                m_fAlpha        = 0.f;
+                m_vRenderOffset = Vector2D((left ? -PMONITOR->vecSize.x : PMONITOR->vecSize.x) * (movePerc / 100.f), 0);
+            }
+        }
+    } else if (ANIMSTYLE == "fade") {
         m_vRenderOffset.setValueAndWarp(Vector2D(0, 0)); // fix a bug, if switching from slide -> fade.
 
         if (in) {
diff --git a/src/managers/AnimationManager.cpp b/src/managers/AnimationManager.cpp
index 3cd0d06595..f4e845c330 100644
--- a/src/managers/AnimationManager.cpp
+++ b/src/managers/AnimationManager.cpp
@@ -485,6 +485,22 @@ std::string CAnimationManager::styleValidInConfigVar(const std::string& config,
     } else if (config == "workspaces" || config == "specialWorkspace") {
         if (style == "slide" || style == "slidevert" || style == "fade")
             return "";
+        else if (style.find("slidefade") == 0) {
+            // try parsing
+            float movePerc = 0.f;
+            if (style.find("%") != std::string::npos) {
+                try {
+                    auto percstr = style.substr(style.find_last_of(' ') + 1);
+                    movePerc     = std::stoi(percstr.substr(0, percstr.length() - 1));
+                } catch (std::exception& e) { return "invalid movePerc"; }
+
+                return "";
+            }
+
+            movePerc; // fix warning
+
+            return "";
+        }
 
         return "unknown style";
     } else if (config == "borderangle") {
diff --git a/src/managers/input/Swipe.cpp b/src/managers/input/Swipe.cpp
index 906d5d9b30..5fe91b65ed 100644
--- a/src/managers/input/Swipe.cpp
+++ b/src/managers/input/Swipe.cpp
@@ -50,7 +50,8 @@ void CInputManager::onSwipeEnd(wlr_pointer_swipe_end_event* e) {
     static auto* const PSWIPENEW    = &g_pConfigManager->getConfigValuePtr("gestures:workspace_swipe_create_new")->intValue;
     static auto* const PSWIPENUMBER = &g_pConfigManager->getConfigValuePtr("gestures:workspace_swipe_numbered")->intValue;
     static auto* const PSWIPEUSER   = &g_pConfigManager->getConfigValuePtr("gestures:workspace_swipe_use_r")->intValue;
-    const bool         VERTANIMS    = m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle == "slidevert";
+    const bool         VERTANIMS    = m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle == "slidevert" ||
+        m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle.find("slidefadevert") == 0;
 
     // commit
     std::string wsname           = "";
@@ -194,7 +195,8 @@ void CInputManager::onSwipeUpdate(wlr_pointer_swipe_update_event* e) {
     static auto* const PSWIPENUMBER  = &g_pConfigManager->getConfigValuePtr("gestures:workspace_swipe_numbered")->intValue;
     static auto* const PSWIPEUSER    = &g_pConfigManager->getConfigValuePtr("gestures:workspace_swipe_use_r")->intValue;
 
-    const bool         VERTANIMS = m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle == "slidevert";
+    const bool         VERTANIMS = m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle == "slidevert" || 
+        m_sActiveSwipe.pWorkspaceBegin->m_vRenderOffset.getConfig()->pValues->internalStyle.find("slidefadevert") == 0;
 
     m_sActiveSwipe.delta += VERTANIMS ? (*PSWIPEINVR ? -e->dy : e->dy) : (*PSWIPEINVR ? -e->dx : e->dx);