added mac-specific commands to inbrowser

src/displays.jl

@@ -13,19 +13,37 @@ function inchrome(t::D3Tree)
     end
     if Sys.iswindows()
         run(`cmd /C start chrome "$fname"`)
+    elseif Sys.isapple()
+        run(`open -a "Google Chrome" $fname`)
     else
         run(`google-chrome $fname`)
     end
 end
 
+"""
+    inbrowser(t::D3Tree, browsername::String)
+
+Open an html document with the D3Tree in a browser with a platform-specific command.
+"""
 function inbrowser(t::D3Tree, browsername::String)
+    if Sys.iswindows()
+        inbrowser(t, `cmd /C start $browsername`)
+    elseif Sys.isapple()
+        inbrowser(t, `open -a $browsername`)
+    else
+        inbrowser(t, `$browsername`)
+    end
+end
+
+"""
+    inbrowser(t::D3Tree, command::Cmd)
+
+Open an html document with the D3Tree in a program launched with the specified command.
+"""
+function inbrowser(t::D3Tree, command::Cmd)
     fname = joinpath(mktempdir(), "tree.html")
     open(fname, "w") do f
         show(f, MIME("text/html"), t)
     end
-    if Sys.iswindows()
-        run(`cmd /C start $browsername "$fname"`)
-    else
-        run(`$browsername $fname`)
-    end
+    run(`$command $fname`)
 end