Add Mouse drag support.

This concludes the first 'release' :p.

1 files changed, 26 insertions, 2 deletions

diff --git a/src/desktop.rs b/src/desktop.rs
index 454c05b..20502e0 100644
--- a/src/desktop.rs
+++ b/src/desktop.rs
@@ -35,6 +35,7 @@ impl Desktop {
         self.cw_idx != usize::max_value()
     }
 
+    /// Get the current window focused on this desktop.
     pub fn current_window(&self) -> Option<&XWindow> {
         if self.cw_idx < self.window_list.len() {
             self.window_list.get(self.cw_idx)
@@ -43,6 +44,7 @@ impl Desktop {
         }
     }
 
+    /// Same as `current_window` but getting a mut reference.
     pub fn current_window_mut(&mut self) -> Option<&mut XWindow> {
         if self.cw_idx < self.window_list.len() {
             self.window_list.get_mut(self.cw_idx)
@@ -53,11 +55,16 @@ impl Desktop {
 
     /// Add a window to the current desktop
     pub fn add_window(&mut self, w: xlib::Window) {
-        if self.find_window(w).is_some() {
+        if self.window_idx(w).is_some() {
             return;
         }
         self.unfocus_current_window();
         if let Some(w) = XWindow::new(self.display, w) {
+            // Throw an event when:
+            // * We enter a window
+            // * The window is exposed
+            // * We move around the window
+            //w.select_input(xlib::EnterWindowMask | xlib::ExposureMask | xlib::PointerMotionMask);
             w.select_input(xlib::EnterWindowMask | xlib::ExposureMask);
             self.window_list.push(w);
             // Last windows get focus.
@@ -100,10 +107,27 @@ impl Desktop {
     }
 
     /// Find a given window and returns it's position on the window_list.
-    pub fn find_window(&self, w: xlib::Window) -> Option<usize> {
+    pub fn window_idx(&self, w: xlib::Window) -> Option<usize> {
         self.window_list.iter().position(|xw| xw.inner == w)
     }
 
+    /// Find a `XWindow` given a `xlib::Window`.
+    pub fn find_window(&self, w: xlib::Window) -> Option<&XWindow> { 
+        if let Some(idx) = self.window_idx(w) {
+            self.window_list.get(idx)
+        } else {
+            None
+        }
+    }
+    /// Same as `find_window` but returning a mut reference.
+    pub fn find_window_mut(&mut self, w: xlib::Window) -> Option<&mut XWindow> {
+        if let Some(idx) = self.window_idx(w) {
+            self.window_list.get_mut(idx)
+        } else {
+            None
+        }
+    }
+
     /// Focus the next window.
     ///
     /// There're 3 posibilities. There's no window, there's one window or there