From 605f3aa68da22dd2e637ca1fc63bb49085ee9c2b Mon Sep 17 00:00:00 2001
From: Krzosa Karol <krzosa.karol@gmail.com>
Date: Sun, 4 Aug 2024 14:08:46 +0200
Subject: [PATCH] Mouse rewrite

---
 src/text_editor/commands.cpp | 91 ++++++++++++++++++++----------------
 1 file changed, 50 insertions(+), 41 deletions(-)

diff --git a/src/text_editor/commands.cpp b/src/text_editor/commands.cpp
index 4ede984..3e2b95b 100644
--- a/src/text_editor/commands.cpp
+++ b/src/text_editor/commands.cpp
@@ -158,6 +158,44 @@ bool GlobalCommand(Event event) {
         }
     }
 
+    // Underline word on mouse cursor
+    if (event.ctrl) {
+        Vec2I mouse = MouseVec2I();
+        For(order) {
+            Window *window = &Windows[it];
+            if (!window->visible) continue;
+            bool mouse_in_document = CheckCollisionPointRec(mouse, window->document_rect);
+            if (mouse_in_document) {
+                View   *view   = GetView(window->active_view);
+                Buffer *buffer = GetBuffer(view->active_buffer);
+                Int     p      = ScreenSpaceToBufferPosErrorOutOfBounds(window, view, buffer, mouse);
+                if (p != -1) {
+                    view->underline_pos[view->underline_count++] = p;
+                    Assert(view->underline_count <= 2);
+                }
+                break;
+            }
+        }
+    }
+
+    // Handle wheel scrolling
+    if (event.wheel.x || event.wheel.y) {
+        Vec2I mouse = MouseVec2I();
+
+        For(order) {
+            Window *window = &Windows[it];
+            if (!window->visible) continue;
+
+            bool mouse_in_window = CheckCollisionPointRec(mouse, window->total_rect);
+            if (mouse_in_window) {
+                View *view = GetView(window->active_view);
+                view->scroll.y -= (Int)(event.wheel.y * 48);
+                view->scroll.x += (Int)(event.wheel.x * 48);
+                break;
+            }
+        }
+    }
+
     // Handle selected window scrollbar
     // @note: the order here assumes that we won't run this code on the
     // same event as the scroll was pressed
@@ -175,9 +213,12 @@ bool GlobalCommand(Event event) {
         double   v          = p / size_y;
         v                   = v + (window->mouse_scroller_offset);
         view->scroll.y      = (Int)(v * (double)s.line_count * (double)FontLineSpacing);
+        run_window_command  = false;
     }
 
-    if (DocumentSelected && MouseUp()) {
+    if (DocumentSelected != GetActiveWindow()) {
+        DocumentSelected = NULL;
+    } else if (DocumentSelected && MouseUp()) {
         Assert(ScrollbarSelected == NULL);
         DocumentSelected = NULL;
     } else if (DocumentSelected) {
@@ -207,31 +248,10 @@ bool GlobalCommand(Event event) {
         }
     }
 
-    // underline
-    if (event.ctrl) {
-        Vec2I mouse = MouseVec2I();
-        For(order) {
-            Window *window = &Windows[it];
-            if (!window->visible) continue;
-            bool mouse_in_document = CheckCollisionPointRec(mouse, window->document_rect);
-            if (mouse_in_document) {
-                View   *view   = GetView(window->active_view);
-                Buffer *buffer = GetBuffer(view->active_buffer);
-                Int     p      = ScreenSpaceToBufferPosErrorOutOfBounds(window, view, buffer, mouse);
-                if (p != -1) {
-                    view->underline_pos[view->underline_count++] = p;
-                    Assert(view->underline_count <= 2);
-                }
-                break;
-            }
-        }
-    }
-
-    if (event.ctrl && Mouse(RIGHT)) {
-        GoBackToLastCrumb();
-    }
-
     // @todo: maybe move some of this stuff to window command ???
+    // for now let's leave it because we are relaying on global state
+    //   - maybe just do the check if active window is matching the DocumentSelected window
+    //   - if scrollbar selected then don't invoke window command
     if (event.ctrl && Mouse(LEFT)) {
         Vec2I   mouse  = MouseVec2I();
         Window *window = GetActiveWindow();
@@ -290,6 +310,8 @@ bool GlobalCommand(Event event) {
         }
 
         // Figure out scrollbar click
+        // @todo: it generally works ok but it moves the scrollbar a bit on click
+        // when mouse is not even moving
         For(order) {
             Window *window = &Windows[it];
             if (!window->visible) continue;
@@ -308,27 +330,14 @@ bool GlobalCommand(Event event) {
                 } else {
                     window->mouse_scroller_offset = (s.rect.min.y - p) / size_y;
                 }
+                run_window_command = false;
                 break;
             }
         }
     }
 
-    // Handle wheel scrolling
-    if (event.wheel.x || event.wheel.y) {
-        Vec2I mouse = MouseVec2I();
-
-        For(order) {
-            Window *window = &Windows[it];
-            if (!window->visible) continue;
-
-            bool mouse_in_window = CheckCollisionPointRec(mouse, window->total_rect);
-            if (mouse_in_window) {
-                View *view = GetView(window->active_view);
-                view->scroll.y -= (Int)(event.wheel.y * 48);
-                view->scroll.x += (Int)(event.wheel.x * 48);
-                break;
-            }
-        }
+    if (event.ctrl && Mouse(RIGHT)) {
+        GoBackToLastCrumb();
     }
 
     if (Ctrl(SDLK_GRAVE)) {