From cf2cc781caf7075f0e4b089f47a494a48b7b8ad3 Mon Sep 17 00:00:00 2001
From: JamshedVesuna <jamshed.vesuna@gmail.com>
Date: Wed, 14 Jan 2015 21:31:21 -0800
Subject: [PATCH] Include Safari on OSX

---
 README.md                       | 27 +++++++++++------
 plugin/vim-markdown-preview.vim | 51 +++++++++++++++++++++++++--------
 2 files changed, 58 insertions(+), 20 deletions(-)

diff --git a/README.md b/README.md
index d78d291..5bec3cf 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 Vim Markdown Preview
 ====================
 
-A Vim plugin for previewing markdown files in a browser. This plugin was designed to maintain focus on vim but use Google Chrome to preview rendered markdown. Thus, everything is done in the background so you never have to leave Vim.
+A Vim plugin for previewing markdown files in a browser. This plugin was designed to maintain focus on vim but use Google Chrome or Safari to preview rendered markdown. Thus, everything is done in the background so you never have to leave Vim.
 
 ![Screenshot](images/screenshot.gif?raw=true "Screenshot")
 
@@ -9,26 +9,37 @@ Installation
 ============
 
 1. With Pathogen: Place `vim-markdown-preview/` in `.vim/bundle/`.
+2. Default browsers:
+    * OS X: Safari
+    * Unix: Google Chrome
+
+Support and Requirements
+========================
+
+## OS X:
+
+* [Markdown](http://daringfireball.net/projects/markdown/)
+* [Safari](https://www.apple.com/safari/)
+
+## Unix:
 
-Requirements
-============
 * [Markdown](http://daringfireball.net/projects/markdown/)
 * [xdotool](https://github.com/jordansissel/xdotool)
 * [Google Chrome](https://www.google.com/chrome/browser/)
 
 Usage
 =====
-When in a *.markdown or *.md file, vim-markdown-preview does the following when you type `Ctrl-p`:
+When in a *.markdown or *.md file, vim-markdown-preview does the following when you type `Ctrl-p` (can be remapped):
 
 * If you are not previewing the current file:
-    * Open an html rendered version of your file in Google Chrome in the background.
+    * Open an html rendered version of your file in Google Chrome or Safari in the background.
 * Otherwise:
-    * Refresh your preview of the current markdown file in Google Chrome.
+    * Refresh your preview of the current markdown file in Google Chrome or Safari.
 
 Uncomment the last line in `plugin/vim-markdown-preview.vim` to map a buffer write to the above instead of `Ctrl-p`.
 
 Behind The Scenes
 =================
 1. First, vim-markdown-preview renders your markdown as html and creates a temporary file `vim-markdown-preview.html` in `/tmp/`.
-2. Next, vim-markdown-preview then either opens the html file or refreshes the Google Chrome tab.
-3. If you would like vim-markdown-preview to remove the temporary file so nothing left behind, uncomment lines 20 and 21.
+2. Next, vim-markdown-preview then either opens the html file or refreshes the Google Chrome or Safari tab.
+3. If you would like vim-markdown-preview to remove the temporary file so nothing left behind, set `REMOVE_TEMP_FILE` to 1.
diff --git a/plugin/vim-markdown-preview.vim b/plugin/vim-markdown-preview.vim
index 541110b..71164ad 100644
--- a/plugin/vim-markdown-preview.vim
+++ b/plugin/vim-markdown-preview.vim
@@ -4,21 +4,48 @@
 "============================================================
 
 function! Vim_Markdown_Preview()
+
+  let BROWSER = 'google-chrome'
+  let OSNAME = 'Unidentified'
+  let REMOVE_TEMP_FILE = 0  "To remove the temp file, set to 1
+
+  if has('win32')
+    " Not yet used
+    let OSNAME = 'win32'
+  endif
+  if has('unix')
+    let OSNAME = 'unix'
+  endif
+  if has('mac')
+    let OSNAME = 'mac'
+    let BROWSER = 'safari'
+  endif
+
   let curr_file = expand('%:p')
   call system('markdown ' . curr_file . ' > /tmp/vim-markdown-preview.html')
-  let chrome_wid = system("xdotool search --name 'vim-markdown-preview.html - Google Chrome'")
-  if !chrome_wid
-    "sleep 300m
-    call system('see /tmp/vim-markdown-preview.html & > /dev/null &')
-  else
-    let curr_wid = system('xdotool getwindowfocus')
-    call system('xdotool windowmap ' . chrome_wid)
-    call system('xdotool windowactivate ' . chrome_wid)
-    call system("xdotool key 'ctrl+r'")
-    call system('xdotool windowactivate ' . curr_wid)
+
+  if OSNAME == 'unix' && BROWSER == 'google-chrome'
+    let chrome_wid = system("xdotool search --name 'vim-markdown-preview.html - Google Chrome'")
+    if !chrome_wid
+      "sleep 300m
+      call system('see /tmp/vim-markdown-preview.html & > /dev/null &')
+    else
+      let curr_wid = system('xdotool getwindowfocus')
+      call system('xdotool windowmap ' . chrome_wid)
+      call system('xdotool windowactivate ' . chrome_wid)
+      call system("xdotool key 'ctrl+r'")
+      call system('xdotool windowactivate ' . curr_wid)
+    endif
+    "sleep 700m
+  endif
+
+  if OSNAME == 'mac' && BROWSER == 'safari'
+    call system('open -g /tmp/vim-markdown-preview.html')
+  endif
+
+  if REMOVE_TEMP_FILE
+    call system('rm /tmp/vim-markdown-preview.html')
   endif
-  "sleep 700m
-  "call system('rm /tmp/vim-markdown-preview.html')
 endfunction
 
 autocmd Filetype markdown,md map <buffer> <C-p> :call Vim_Markdown_Preview()<CR>
-- 
2.45.2