From f1313697dc75005f16a081e229493a7fc4e1ba3a Mon Sep 17 00:00:00 2001
From: speedie <speedie@duck.com>
Date: Sun, 2 Apr 2023 16:10:13 +0200
Subject: [PATCH] add Mouse array, allowing mouse binds to be easily changed
 similar to the Key binds

---
 README.html  |   1 -
 README.md    |   1 -
 keybinds.h   |   2 +-
 libs/mouse.c | 144 ++++++++++++++++++++++++---------------------------
 libs/mouse.h |  19 +++++++
 mouse.h      |  26 ++++++++++
 spmenu.c     |   1 +
 7 files changed, 114 insertions(+), 80 deletions(-)
 create mode 100644 mouse.h

diff --git a/README.html b/README.html
index 10e16c5..a7ef3b1 100644
--- a/README.html
+++ b/README.html
@@ -140,7 +140,6 @@ free to add it to this list.</p>
 issues!</p>
 <h3 id="general">General</h3>
 <ul>
-<li>Key: Mouse bind array (Likely mouse.h).</li>
 <li>Config file: Add configuration file using (probably) libconfig,
 allowing keybinds to be configured without recompiling spmenu.</li>
 <li>Image support: Stop using OpenSSL for caching images, mostly because
diff --git a/README.md b/README.md
index 73eac64..2038a36 100644
--- a/README.md
+++ b/README.md
@@ -119,7 +119,6 @@ Pull requests would be greatly appreciated for any of these issues!
 
 ### General
 
-- Key: Mouse bind array (Likely mouse.h).
 - Config file: Add configuration file using (probably) libconfig, allowing
 keybinds to be configured without recompiling spmenu.
 - Image support: Stop using OpenSSL for caching images, mostly because MD5()
diff --git a/keybinds.h b/keybinds.h
index 0ffb658..73a7d04 100644
--- a/keybinds.h
+++ b/keybinds.h
@@ -2,7 +2,7 @@
  *
  * Types
  *
- * MODIFIER1 is what you defined below, default is Super)
+ * MODIFIER1 is what you defined below, default is Alt)
  *
  * SHIFT is unless changed going to be your Shift key.
  * CONTROL is unless changed going to be your Control key.
diff --git a/libs/mouse.c b/libs/mouse.c
index 9559d2e..12e7567 100644
--- a/libs/mouse.c
+++ b/libs/mouse.c
@@ -17,18 +17,20 @@ motionevent(XButtonEvent *ev)
 		return;
 
     #if USEIMAGE
-        if (image) return;
+    if (image) return;
     #endif
 
     int itemCount = 0;
 
     // walk through all items
-    for (item = items; item && item->text; item++)
+    for (item = items; item && item->text; item++) {
         itemCount++;
+    }
 
     // to prevent slowdown, arbritary limit of 50 items
-    if (itemCount > 50)
+    if (itemCount > 50) {
         return;
+    }
 
     int larrowWidth = 0;
     int rarrowWidth = 0;
@@ -56,117 +58,105 @@ buttonpress(XEvent *e)
 	struct item *item;
 	XButtonPressedEvent *ev = &e->xbutton;
 	int x = 0, y = 0, h = bh, w, item_num = 0;
+    unsigned int i, click;
     int xpad = 0;
 
     if (!hidepowerline) {
         x = xpad = plw;
     }
 
+    int larrowWidth = 0;
+    int rarrowWidth = 0;
+    int numberWidth = 0;
+    int modeWidth = 0;
+
+    if (!hidelarrow) larrowWidth = pango_leftarrow ? TEXTWM(leftarrow) : TEXTW(leftarrow);
+    if (!hiderarrow) rarrowWidth = pango_rightarrow ? TEXTWM(rightarrow) : TEXTW(rightarrow);
+    if (!hidematchcount) numberWidth = pango_numbers ? TEXTWM(numbers) : TEXTW(numbers);
+    if (!hidemode) modeWidth = pango_mode ? TEXTWM(modetext) : TEXTW(modetext);
+
     // if incorrect or wrong window, return
 	if (ev->window != win)
 		return;
 
-	// right-click: exit
-	if (ev->button == Button3)
-		exit(1);
+    // clicking anywhere, we use this as a base for a click
+    click = clickwindow;
 
-	if (prompt && *prompt)
-		x += promptw + plw;
+    // check if we clicked on the prompt or the input
+    if (ev->x < x + promptw + plw) {
+        click = clickprompt;
+    } else if (ev->x > mw - modeWidth) {
+        click = clickmode;
+    } else if (ev->x > mw - modeWidth - numberWidth) {
+        click = clicknumber;
+    } else { // actually we clicked on the input
+        w = (lines > 0 || !matches) ? mw - x : inputw;
 
-	// input field
-	w = (lines > 0 || !matches) ? mw - x : inputw;
+        if ((lines <= 0 && ev->x >= 0 && ev->x <= x + w + promptw +
+           ((!prev || !curr->left) ? larrowWidth : 0)) ||
+           (lines > 0 && ev->y >= y && ev->y <= y + h)) {
 
-	// left-click on input: clear input
-	if (ev->button == Button1 &&
-	   ((lines <= 0 && ev->x >= 0 && ev->x <= x + w +
-	   ((!prev || !curr->left) ? TEXTW(leftarrow) : 0)) ||
-	   (lines > 0 && ev->y >= y && ev->y <= y + h))) {
-		insert(NULL, -cursor);
-		drawmenu();
-		return;
-	}
-	// middle-mouse click: paste selection
-	if (ev->button == Button2) {
-		XConvertSelection(dpy, (ev->state & ShiftMask) ? clip : XA_PRIMARY,
-		                  utf8, utf8, win, CurrentTime);
-		drawmenu();
-		return;
-	}
-	// scroll up
-	if (ev->button == Button4 && prev) {
-		sel = curr = prev;
-		calcoffsets();
-		drawmenu();
-		return;
-	}
-	// scroll down
-	if (ev->button == Button5 && next) {
-		sel = curr = next;
-		calcoffsets();
-		drawmenu();
-		return;
-	}
-	if (ev->button != Button1)
-		return;
-	if (ev->state & ~ControlMask)
-		return;
+            click = clickinput;
+        }
+    }
+
+    // item click
 	if (lines > 0) {
-		// vertical list: (ctrl)left-click on item
+		// vertical list
 		w = mw - x;
 		for (item = curr; item != next; item = item->right) {
-			if (item_num++ == lines){
+			if (item_num++ == lines) {
 				item_num = 1;
 				x += w / columns;
 				y = 0;
 			}
+
 			y += h;
-			if (ev->y >= y && ev->y <= (y + h) &&
-			    ev->x >= x && ev->x <= (x + w / columns)) {
-				puts(item->text);
-				if (!(ev->state & ControlMask))
-					exit(0);
-				sel = item;
-				if (sel) {
-					drawmenu();
-				}
-				return;
+
+			if (ev->y >= y && ev->y <= (y + h) && ev->x >= x && ev->x <= (x + w / columns)) {
+
+                // TODO: make clickitem a thing
+                if (ev->button != Button1)
+                    return;
+
+                puts(item->text);
+                exit(0);
 			}
 		}
 	} else if (matches) {
 		// left-click on left arrow
 		x += inputw;
-		w = TEXTW(leftarrow);
+		w = larrowWidth;
 		if (prev && curr->left) {
 			if (ev->x >= x && ev->x <= x + w) {
-				sel = curr = prev;
-				calcoffsets();
-				drawmenu();
-				return;
+                click = clicklarrow;
 			}
 		}
-		// horizontal list: (ctrl)left-click on item
+        // item click
+		// horizontal list
 		for (item = curr; item != next; item = item->right) {
 			x += w;
-			w = MIN(TEXTW(item->text), mw - x - TEXTW(rightarrow));
+			w = MIN(TEXTW(item->text), mw - x - rarrowWidth);
 			if (ev->x >= x && ev->x <= x + w) {
-				puts(item->text);
-				if (!(ev->state & ControlMask))
-					exit(0);
-				sel = item;
-				if (sel) {
-					drawmenu();
-				}
-				return;
+                // TODO: make clickitem a thing
+                if (ev->button != Button1)
+                    return;
+
+                puts(item->text);
+                exit(0);
 			}
 		}
 		// left-click on right arrow
-		w = TEXTW(rightarrow);
+		w = rarrowWidth;
 		x = mw - w;
 		if (next && ev->x >= x && ev->x <= x + w) {
-			sel = curr = next;
-			calcoffsets();
-			drawmenu();
-			return;
+            click = clickrarrow;
 		}
-	}
+    }
+
+    // go through mouse button array
+    for (i = 0; i < LENGTH(buttons); i++)
+        if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
+        && CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
+            buttons[i].func(&buttons[i].arg);
 }
diff --git a/libs/mouse.h b/libs/mouse.h
index b41736a..edb826d 100644
--- a/libs/mouse.h
+++ b/libs/mouse.h
@@ -1,3 +1,22 @@
+typedef struct {
+	unsigned int click;
+	unsigned int mask;
+	unsigned int button;
+	void (*func)(const Arg *arg);
+	const Arg arg;
+} Mouse;
+
+// clicks
+enum {
+    clickwindow,
+    clickprompt,
+    clickinput,
+    clicklarrow,
+    clickrarrow,
+    clicknumber,
+    clickmode,
+};
+
 static unsigned int textw_clamp(const char *str, unsigned int n);
 static void motionevent(XButtonEvent *ev);
 static void buttonpress(XEvent *e);
diff --git a/mouse.h b/mouse.h
new file mode 100644
index 0000000..283dc9d
--- /dev/null
+++ b/mouse.h
@@ -0,0 +1,26 @@
+/* Mouse bindings
+ *
+ * This header contains mouse binds.
+ * Change them or remove them if you prefer. You can also add more if you want.
+ *
+ * clickwindow: - spmenu window/client
+ * clickinput:  - Input box
+ * clickprompt: - Prompt
+ * clicklarrow: - Left arrow
+ * clickrarrow: - Right arrow
+ * clicknumber: - Match count
+ * clickmode:   - Mode indicator
+ *
+ * Button1      - Left click
+ * Button2      - Middle click
+ * Button3      - Right click
+ * Button4      - Scroll up
+ * Button5      - Scroll down
+ *
+ * Note that clicking on an item will select it, as of now it's hardcoded.
+ */
+
+static Mouse buttons[] = {
+    { clickinput,           0,         Button1,         clear,        {0} },
+    { clickprompt,          0,         Button1,         clear,        {0} },
+};
diff --git a/spmenu.c b/spmenu.c
index db87454..b6542a4 100644
--- a/spmenu.c
+++ b/spmenu.c
@@ -199,6 +199,7 @@ static size_t nextrune(int inc);
 // user configuration
 #include "options.h"
 #include "keybinds.h"
+#include "mouse.h"
 
 // xresources/color arrays
 #include "libs/xresources.h"