From 6766a222edf5f715e3c63c2cb2b8944d84026349 Mon Sep 17 00:00:00 2001
From: liangfeng <liang.feng98 AT gmail DOT com>
Date: Fri, 21 Jun 2013 22:34:48 +0800
Subject: [PATCH 1/4] Add toggle support.

---
 plugin/tasklist.vim | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/plugin/tasklist.vim b/plugin/tasklist.vim
index 25e9e73..a2caf1f 100644
--- a/plugin/tasklist.vim
+++ b/plugin/tasklist.vim
@@ -183,7 +183,7 @@ function! s:SearchFile(hits, word)
         if foldlevel(l:curr_line) != 0
             normal! 99zo
         endif
-        if l:div == 0 
+        if l:div == 0
             if a:hits != 0
                 let @z = @z."\n"
             endif
@@ -322,7 +322,8 @@ function! s:TaskList()
         echo "tasklist.vim: No task information found."
         echohl None
         execute 'normal! '.l:original_line.'G'
-        return
+        " -1 means there is no task info found.
+        return -1
     endif
 
     " display window
@@ -364,12 +365,36 @@ endfunction
 " Command
 command! TaskList call s:TaskList()
 
+" Comment out below key map to avoid conflict with tagbar.
 " Default key map
-if !hasmapto('<Plug>TaskList')
-    map <unique> <Leader>t <Plug>TaskList
-endif
+" if !hasmapto('<Plug>TaskList')
+"     map <Leader>t <Plug>TaskList
+" endif
 
 " Key map to Command
 nnoremap <unique> <script> <Plug>TaskList :TaskList<CR>
 
+" Function: Support toggle {{{1
+let s:tasklist_open = 0
+function! s:ToggleTaskList()
+    if (s:tasklist_open == 1)
+        call s:Exit(0)
+        let s:tasklist_open = 0
+    else
+        let has_task_info = 0
+        let has_task_info = s:TaskList()
+        if (has_task_info == -1)
+            return
+        endif
+        let s:tasklist_open = 1
+    endif
+endfunction
+" }}}
+
+" Toggle Command
+command! ToggleTaskList call s:ToggleTaskList()
+
+" Key map to Toggle Command
+nnoremap <unique> <script> <Plug>ToggleTaskList :ToggleTaskList<CR>
+
 " vim:fdm=marker:tw=75:ff=unix:

From 6fc364cff414b7f2e723523332d5e0db5ebf93fd Mon Sep 17 00:00:00 2001
From: liangfeng <liang.feng98 AT gmail DOT com>
Date: Sat, 22 Jun 2013 02:31:19 +0800
Subject: [PATCH 2/4] bugfix: add quick-and-dirty solution to support toggle.

---
 plugin/tasklist.vim | 45 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 9 deletions(-)

diff --git a/plugin/tasklist.vim b/plugin/tasklist.vim
index a2caf1f..55600c9 100644
--- a/plugin/tasklist.vim
+++ b/plugin/tasklist.vim
@@ -374,19 +374,46 @@ command! TaskList call s:TaskList()
 " Key map to Command
 nnoremap <unique> <script> <Plug>TaskList :TaskList<CR>
 
-" Function: Support toggle {{{1
+" Quick-and-dirty toggle soluton.
+" TODO: perfect simply solution: setup directory for [text_buffer, tasklist_buffer]
+
+" Function: open task list for toggle {{{1
 let s:tasklist_open = 0
-function! s:ToggleTaskList()
-    if (s:tasklist_open == 1)
+function! s:OpenTaskList()
+    let has_task_info = 0
+    let has_task_info = s:TaskList()
+    if (has_task_info == -1)
+        " No task info found
+        return
+    endif
+    let s:tasklist_open = 1
+endfunction
+" }}}
+
+" Function: open task list for toggle {{{1
+function! s:CloseTaskList()
+    let tasklist_bufnr = bufnr('-TaskList_')
+    if (bufloaded(tasklist_bufnr))
+        " tasklist buffer is active.
+        let tasklist_bufwinnr = bufwinnr(tasklist_bufnr)
+        exec tasklist_bufwinnr . 'wincmd w'
         call s:Exit(0)
         let s:tasklist_open = 0
     else
-        let has_task_info = 0
-        let has_task_info = s:TaskList()
-        if (has_task_info == -1)
-            return
-        endif
-        let s:tasklist_open = 1
+        " Tasklist windows was closed by 'q', so 's:tasklist_open' can not
+        " be reset.
+        call s:OpenTaskList()
+        return
+    endif
+endfunction
+" }}}
+
+" Function: Support toggle {{{1
+function! s:ToggleTaskList()
+    if (s:tasklist_open == 0)
+        call s:OpenTaskList()
+    else
+        call s:CloseTaskList()
     endif
 endfunction
 " }}}

From d6447946cfaa6c98d37c52b5b1125ea26bd86003 Mon Sep 17 00:00:00 2001
From: liangfeng <liang.feng98 AT gmail DOT com>
Date: Sat, 22 Jun 2013 02:40:12 +0800
Subject: [PATCH 3/4] feature: set task list windows to nomodifiable

---
 plugin/tasklist.vim | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/plugin/tasklist.vim b/plugin/tasklist.vim
index 55600c9..f6c0f7b 100644
--- a/plugin/tasklist.vim
+++ b/plugin/tasklist.vim
@@ -159,6 +159,7 @@ function! s:OpenWindow(buffnr, lineno)
     " Clean up.
     let @z = ""
     set nomodified
+    set nomodifiable
 endfunction
 
 " Function: Search file {{{1
@@ -378,7 +379,7 @@ nnoremap <unique> <script> <Plug>TaskList :TaskList<CR>
 " TODO: perfect simply solution: setup directory for [text_buffer, tasklist_buffer]
 
 " Function: open task list for toggle {{{1
-let s:tasklist_open = 0
+let s:is_tasklist_open = 0
 function! s:OpenTaskList()
     let has_task_info = 0
     let has_task_info = s:TaskList()
@@ -386,7 +387,7 @@ function! s:OpenTaskList()
         " No task info found
         return
     endif
-    let s:tasklist_open = 1
+    let s:is_tasklist_open = 1
 endfunction
 " }}}
 
@@ -398,9 +399,9 @@ function! s:CloseTaskList()
         let tasklist_bufwinnr = bufwinnr(tasklist_bufnr)
         exec tasklist_bufwinnr . 'wincmd w'
         call s:Exit(0)
-        let s:tasklist_open = 0
+        let s:is_tasklist_open = 0
     else
-        " Tasklist windows was closed by 'q', so 's:tasklist_open' can not
+        " Tasklist windows was closed by 'q', so 's:is_tasklist_open' can not
         " be reset.
         call s:OpenTaskList()
         return
@@ -410,7 +411,7 @@ endfunction
 
 " Function: Support toggle {{{1
 function! s:ToggleTaskList()
-    if (s:tasklist_open == 0)
+    if (s:is_tasklist_open == 0)
         call s:OpenTaskList()
     else
         call s:CloseTaskList()

From 3435dea86b2a1a889ebb0b50efd2bade1b95bd29 Mon Sep 17 00:00:00 2001
From: liangfeng <liang.feng98 AT gmail DOT com>
Date: Sat, 22 Jun 2013 03:02:01 +0800
Subject: [PATCH 4/4] feature: remove echo msg from statusline.

---
 plugin/tasklist.vim | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/plugin/tasklist.vim b/plugin/tasklist.vim
index f6c0f7b..0f55cac 100644
--- a/plugin/tasklist.vim
+++ b/plugin/tasklist.vim
@@ -134,9 +134,9 @@ endif
 function! s:OpenWindow(buffnr, lineno)
     " Open results window and place items there.
     if g:tlWindowPosition == 0
-      execute 'sp -TaskList_'.a:buffnr.'-'
+      execute 'silent sp -TaskList_'.a:buffnr.'-'
     else
-      execute 'botright sp -TaskList_'.a:buffnr.'-'
+      execute 'silent botright sp -TaskList_'.a:buffnr.'-'
     endif
 
     let b:original_buffnr = a:buffnr
@@ -144,7 +144,7 @@ function! s:OpenWindow(buffnr, lineno)
 
     set noswapfile
     set modifiable
-    normal! "zPGddgg
+    silent normal! "zPGddgg
     set fde=getline(v:lnum)[0]=='L'
     set foldmethod=expr
     set foldlevel=0
@@ -159,7 +159,7 @@ function! s:OpenWindow(buffnr, lineno)
     " Clean up.
     let @z = ""
     set nomodified
-    set nomodifiable
+    setlocal nomodifiable
 endfunction
 
 " Function: Search file {{{1