make zsh clipboard system-wide, improve emacs_open (add focus on startup)

dotfiles/lib/zsh/system-wide-clipboard.zsh

@@ -0,0 +1,48 @@
+pb-kill-line () {
+  zle kill-line
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-kill-whole-line () {
+  zle kill-whole-line
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-backward-kill-word () {
+  zle backward-kill-word
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-kill-word () {
+  zle kill-word
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-kill-buffer () {
+  zle kill-buffer
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-copy-region-as-kill-deactivate-mark () {
+  zle copy-region-as-kill
+  zle set-mark-command -n -1
+  echo -n $CUTBUFFER | clipboard
+}
+
+pb-yank () {
+  CUTBUFFER=$(pbpaste)
+  zle yank
+}
+
+zle -N pb-kill-line
+zle -N pb-kill-whole-line
+zle -N pb-backward-kill-word
+zle -N pb-kill-word
+zle -N pb-kill-buffer
+zle -N pb-copy-region-as-kill-deactivate-mark
+zle -N pb-yank
+
+bindkey '^K'   pb-kill-line
+bindkey '^U'   pb-kill-whole-line
+bindkey '\ew'  pb-copy-region-as-kill-deactivate-mark
+bindkey '\eW'  pb-copy-region-as-kill-deactivate-mark