From 418e2d96aef0b52d1f93eb3dfe7d08906c7c719c Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Wed, 20 Apr 2022 16:18:58 +0200
Subject: Added the movewindow dispatcher

---
 src/layout/DwindleLayout.cpp | 52 ++++++++++++++++++++++++++++++++++++++++++++
 src/layout/DwindleLayout.hpp |  1 +
 src/layout/IHyprLayout.hpp   |  6 +++++
 3 files changed, 59 insertions(+)

(limited to 'src/layout')

diff --git a/src/layout/DwindleLayout.cpp b/src/layout/DwindleLayout.cpp
index 2af7a2e2..5b7ee165 100644
--- a/src/layout/DwindleLayout.cpp
+++ b/src/layout/DwindleLayout.cpp
@@ -726,4 +726,56 @@ SWindowRenderLayoutHints CHyprDwindleLayout::requestRenderHints(CWindow* pWindow
     }
 
     return hints;
+}
+
+void CHyprDwindleLayout::switchWindows(CWindow* pWindow, CWindow* pWindow2) {
+    // windows should be valid, insallah
+
+    const auto PNODE = getNodeFromWindow(pWindow);
+    const auto PNODE2 = getNodeFromWindow(pWindow2);
+
+    if (!PNODE2 || !PNODE)
+        return;
+
+    // we will not delete the nodes, just fix the tree
+    if (PNODE2->pParent == PNODE->pParent) {
+        const auto PPARENT = PNODE->pParent;
+
+        if (PPARENT->children[0] == PNODE) {
+            PPARENT->children[0] = PNODE2;
+            PPARENT->children[1] = PNODE;
+        } else {
+            PPARENT->children[0] = PNODE;
+            PPARENT->children[1] = PNODE2;
+        }
+    } else {
+        if (PNODE->pParent) {
+            const auto PPARENT = PNODE->pParent;
+
+            if (PPARENT->children[0] == PNODE) {
+                PPARENT->children[0] = PNODE2;
+            } else {
+                PPARENT->children[1] = PNODE2;
+            }
+        }
+
+        if (PNODE2->pParent) {
+            const auto PPARENT = PNODE2->pParent;
+
+            if (PPARENT->children[0] == PNODE2) {
+                PPARENT->children[0] = PNODE;
+            } else {
+                PPARENT->children[1] = PNODE;
+            }
+        }
+    }
+
+    const auto PPARENTNODE2 = PNODE2->pParent;
+    PNODE2->pParent = PNODE->pParent;
+    PNODE->pParent = PPARENTNODE2;
+
+    // these are window nodes, so no children.
+
+    // recalc the workspace
+    getMasterNodeOnWorkspace(PNODE->workspaceID)->recalcSizePosRecursive();
 }
\ No newline at end of file
diff --git a/src/layout/DwindleLayout.hpp b/src/layout/DwindleLayout.hpp
index 47da6cd3..68496723 100644
--- a/src/layout/DwindleLayout.hpp
+++ b/src/layout/DwindleLayout.hpp
@@ -51,6 +51,7 @@ public:
     virtual void        toggleWindowGroup(CWindow*);
     virtual void        switchGroupWindow(CWindow*);
     virtual SWindowRenderLayoutHints requestRenderHints(CWindow*);
+    virtual void switchWindows(CWindow*, CWindow*);
 
    private:
 
diff --git a/src/layout/IHyprLayout.hpp b/src/layout/IHyprLayout.hpp
index 16414895..341d5fbb 100644
--- a/src/layout/IHyprLayout.hpp
+++ b/src/layout/IHyprLayout.hpp
@@ -84,4 +84,10 @@ public:
         a specific window, e.g. border color for groups.
     */
     virtual SWindowRenderLayoutHints requestRenderHints(CWindow*) = 0;
+
+    /* 
+        Called when the user requests two windows to be swapped places.
+        The layout is free to ignore.
+    */
+    virtual void         switchWindows(CWindow*, CWindow*)      = 0;
 };
\ No newline at end of file
-- 
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