Can you please add this info somewhere that if a tab other than vim-markdown-preview.html is active(maybe the wrong word) in the browser, then xdotool won't be able to find the browser window and the plugin will open a new tab. It might confuse some people(including me) wondering why are multiple tabs opening sometimes.

Right now, every call to the method opens a new tab with the html file. This should either remove the tab when creating a new one or refresh the tab.

Here's my situation.
I'm on windows using MobaXterm to connect remote Ubuntu 16.04 server.
MobaXterm forward browser window to my computer with X11 forwarding .
The first press of <ctrl + p> functions normally.
However, whenever I press <ctrl + p> again trying to refresh the content, new tab opened and shows this

Can this be fixed?
Thank for your help.

Browser is blank, has no effect, vim-markdown-preview.html is zero bytes

Enviroment:
OS: MacOS X Yosemite 10.10.5
vim: macvim 7.4.1831

I hava tried both chrome and safari browser, both no effect.

Thanks.

Currently, the workflow is routed by operating system, whereas it should be by both os and browser.

Example: on OS X and want to use Google Chrome.

Doesn't work on Yosemite since it does not match has(mac) but rather has(unix). Changing the OSNAME to mac on has(unix) makes this work but will obviously break unix support.

• Unix (firefox, google chrome)
• OS X (safari, google chrome)
• Win32 (google chrome)

Related to #3

Had a problem with this wonderful plugin.
The Ctrl-p hotkey only worked on .markdown and README.md files but never on any other .md file e.g. readme.md.
After looking around I found out that the only valid .md file is README.md according to Vim's filetypes.vim, see here.
Maybe you could update your documentation to tell users about it because it really gave me headaches why hotkey wasn't working for me:

"By default, when in a .markdown or .md file, and Ctrl-p is pressed, this plugin will either open a preview in your browser, or refresh your current preview (can be remapped, see Options). ..."

I'm sorry, my english was terrible, i hope you will understand what i saying
i have done all things what the README wants me to do, but when i press ctrl-p , the page was empty

i use lubuntu 16.04 and chromium

If a relative link tag is clicked when testing, the url updates with the tag (ie blah/#some-tag). Now, when the plugin searches URLs for the path, it will mismatch.

Fix: Search for the string subset (as to not include the tag)

In the documentation you mention the comment below. When I checked the installation section I did not see anything about remapping the key. Thanks in advance!

When in a *.markdown or *.md file, vim-markdown-preview does the following when you type Ctrl-p (can be remapped, see Installation):

If Google Chrome is not open, see -g does not maintain focus on vim. This could be another case with a longer sleep time.

Hi,

When I press Ctrl+P, I get a blank screen on my chrome. I also check the file /tmp/vim-markdown-preview.html and it is empty.

My OS is Ubuntu 16.10.

After installing this plugin, I found that MacVIM would hang whenever I pressed Ctrl+P until I manually ran open -g /tmp/vim-markdown-preview.html, at which point it started working.

Hi

Continuation from previous bug report.

I am trying to use the local markdown, but it just produces empty files, no content. Web browser opens etc, just a blank page.

If I use

let vim_markdown_preview_github=1

it then works.

call system('see /tmp/vim-markdown-preview.html &> /dev/null &')

Does nothing. With the github=1 option then it works.

System info:
markdown-2.6.5
Vim 7.4.52
Zsh shell

All requirements are met (as far as I know). I have got Python 2 and 3 on this comp, not sure if that confuses anything.

Tested with VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Dec 6 2016 12:07:41) as well as VIM - Vi IMproved 8.0 (2016 Sep 12, compiled Mar 9 2017 06:42:38). Tested with Safari and Chrome. None of these configurations works for me.

Contents of the temp file /tmp/vim-markdown-preview.html are empty for me.

A space in a file path causes vim-markdown-preview to not render the html file by default.

Hi,
when I start the previous my file is empty no source code?
Thank you

Your plugin is huge because of images in the repository. It is the biggest plugin in my vim installation (it's more than 10 times bigger then CtrlP with 450 commits). It's not small as you write in your README.
Consider remove images. And you should clean somehow .git directory after that.

At first blush, this doesn't seem to work with neovim. Would be great if it did.

File does get created in /tmp/ but is empty, resulting in blank page for preview.

OSX 10.10.5, Google Chrome, zsh shell

file:///tmp/vim-markdown-preview.html opens but shows nothing. Any ideas?

OS is Mac OS X.

Also, what is meant by Markdown is a requirement? What is the proper way to install Markdown.pl? Does the system path have to have the alias markdown=Markdown.pl?

Maybe I am doing something wrong and can add to the README once I figure out what.

No preview is shown on the browser. It get focus but a white html is shown.

let vim_markdown_preview_browser='Safari'

Preview is still opened in Google Chrome (default browser)

This is nice.

Pandoc support would be useful to some people, I think. I've tried to add it here: https://github.com/twsh/vim-markdown-preview/commit/261d88f3081b17f7c23e6244088b0c58d1bbe24d

Would you be interested in a pull request?

ubuntu gnome 14.04.3 x86
vim 7.4.52
Grip 4.0.0
using vundle.

.vimrc

Plugin 'JamshedVesuna/vim-markdown-preview'
let vim_markdown_preview_browser='Firefox'
let vim_markdown_preview_github=1

Open the markdown file in vim. Control + p does not work.
but, next command well do work.

$ grip "test.md" --export /tmp/vim-markdown-preview.html
$ see /tmp/vim-markdown-preview.html &> /dev/null &

Why does not it work? How does it work when?

There's a lot of duplicate functionality in both global methods. Combine similar logic.

Installation in the documentation is somewhat wordy. Would be great to have an install script that has a few user prompted options, then installs all dependencies based on the system.

Check the system's BROWSER and compare this against the tab's header via xdotool.

• Firefox
• Safari
• Opera

I am editing markdown files from a database, and for such, temporary files are created, without .md extension.

Is there a way, that I get the preview without having .md or other markdown extension?

I'm using Google Chrome, and all option is set on default. I only can see it when I press ctrl + p.
How can I fix it?

I get a blank preview.

macos sierra with safari. latest macvim

So using the option let vim_markdown_preview_temp_file=1 causes a "Your file was not found" in the browser.
Obviously the file was deleted a bit too soon. This may be due to my configuration. Here is what I am using atm :

" vim-markdown-preview
let vim_markdown_preview_toggle=0 " <C-p> to open preview
let vim_markdown_preview_temp_file=1 " Automatically removes rendering file.html after usage
let vim_markdown_preview_github=1 " Use github API

But if I remove the third line (Use github API), I don't get this error. I get a blank page as expected (I only have grip installed) and after refreshing I get the "File not found" error which is a normal behavior.

Vim flavour : neovim
browser : Google Chrome
OS : (X)ubuntu 16.04.2x64

Also I had some trouble installing grip. As I missed the option relative to github the first time, I tried reinstalling grip which resulted in some error I had to circumvent using pip install --user grip. I don't think this is causing the problem but I may be wrong.

I'm disabling the auto remove until then.

Most of the current code uses buffer scoped variables (b:) but it only sets them on Vim startup. This means if you switch to a new buffer and activate the plugin you get errors like:

Error detected while processing function Vim_Markdown_Preview:
line    3:
E121: Undefined variable: b:curr_file
E116: Invalid arguments for function system
line    8:
E121: Undefined variable: b:vmp_osname
E15: Invalid expression: b:vmp_osname == 'unix'
line   25:
E121: Undefined variable: b:vmp_osname
E15: Invalid expression: b:vmp_osname == 'mac'

b3894e0#commitcomment-16729207

First of all, I love this great plugin, and many thanks for all the work.
I've been using it for a while on my ubuntu laptop, and last week, after I went up to the new 16.04 by clean install, I found the plugin started to act weird.
Everytime I hit preview, it ends up with an error message, saying

Error detected while processing function Vim_Markdown_Preview_Local:
line   10:
E484: Can't open file /tmp/vM3gtfz/1
Press ENTER or type command to continue

Correct me if I'm wrong: from what I understand, if I have vim_markdown_preview_temp_file option turned on, the plugin will generate vim-markdown-preview.html in the temp directory, and then opens it.
However, it only manages to generate the html, then fails to open the file.
And the error message says that somehow it's trying to access /tmp/vM3gtfz/1 (name changes every time) , which does not exist.
If I turn the option off, it successfully generates html file in the working directory and successfully open it on the browser, but I'm still get the same error message.

I have installed grip and xdotool.
Here are the relevant part of my current vimrc

let vim_markdown_preview_browser='Google Chrome'
let vim_markdown_preview_hotkey='<leader>r'
let vim_markdown_preview_toggle=1
let vim_markdown_preview_github=1
let vim_markdown_preview_temp_file=0

I'm trying to use this plugin in Slackware. I have xdotool installed and all, but the markdown never shows up in the browser. Is there any way to support distributions which do not have see in them? How about using xdg-open instead, since that is something most distros have?

The error I receive when saving a markdown file is below. I installed via vundle. My .vimrc

Config specific to plugin

let vim_markdown_preview_browser='Google Chrome'
let vim_markdown_preview_temp_file=1
let vim_markdown_preview_toggle=2
let vim_markdown_preview_github=1

I am also using grip

% pip list | grep grip
grip (3.3.0)

Error detected while processing function Vim_Markdown_Preview_Local:
line   17:
E121: Undefined variable: b:vim_markdown_preview_github
E15: Invalid expression: b:vim_markdown_preview_github == 1
line   41:
E121: Undefined variable: b:vim_markdown_preview_temp_file
E15: Invalid expression: b:vim_markdown_preview_temp_file == 1 

Any help would be great!

Plugin works great, only thing is that it opens a new tab on every write instead of reloading the existing one

It works perfect when opening the document with vim, but it does not renders the page when opening the document with neovim (neovim opens the web-explorer with the page ... but it is blank page).
So, i just open the *.md with vim, but (to mention that) i don't have an specific vim configuration, but the following:
ln -s ~/.config/nvim ~/.vim
ln -s ~/.config/nvim/init.vim ~/.vimrc
so, in vim i am only using the neovim configuration (case this info can be useful).
Cheers,
A.

I have read through the docs, but the plugin won't load the preview in Google Chrome.

My setup:

• Google Chrome Version 56.0.2924.87 (64-bit)
• Vim 8.0.71
• Mac OS X El Capitan 10.11.6
• zsh
• Vundle
• remapped to <C-m>

Hi,

Google Chrome is opened despite the default preview setting, and the resulting html file is only loaded in displayed in Safari.

It makes sure chrome is running, if chrome is already running, nothing happens, if chrome is not running, it is launched, which is unwanted behavior.

the &> /dev/null isn't valid syntax in fish, so if shell is fish, then xdg-open (or see) fails to open. 2>1 > /dev/null is more portable.

Needs to include applescript for Google Chrome

OS: Arch Linux
Browser: Chromium
Editor: NeoVIM

I'm glad I found your plug in, it's an excellent idea!
Installed fine on NeoVim and installed Markdown and xdotool using pacman package manager.

I checked the /tmp/ dir and I can see the rendered file there but it doesn't open Chromium.
Are there any other debugging techniques I can use to find out what is going on?

When I preview a Markdown document with images, they don't load.

It would be nice if the webapp had a catch-all route that checked for files relative to the markdown-being-previewed.

The process in README.md is too cluttered. VMP works out of the box, with additional features. Make a nice grid displaying what global variable maps to what feature when turned on.

You can place this info somewhere for people facing the same problem

For xmonad window manager xdotool windowactivate gives error

Your windowmanager claims not to support _NET_ACTIVE_WINDOW, so the attempt to activate the window was aborted.

The solution is to use XMonad.Hooks.EwmhDesktops in your xmonad configuration file.

Useful links
https://mail.haskell.org/pipermail/xmonad/2008-November/006770.html
https://mail.haskell.org/pipermail/xmonad/2008-November/006773.html
http://xmonad.org/xmonad-docs/xmonad-contrib/XMonad-Hooks-EwmhDesktops.html
http://www.ohspite.net/posts/keepass-global-autotype-in-xmonad/

One option is to change relative to absolute paths.

Hey,

I cannot display swedish characters with using this plugin. It renders

Currently, both on buffer write and image rendering are captured in the same option, vim_markdown_preview_toggle. This should be split into two separate options:

vim_markdown_preview_image and vim_markdown_preview_write.

Instead of sleeping, check if the pid of BROWSER is active and remove the tmp file accordingly. If possible, check if the new tab has been created.