make the menu system more awesome
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marty
parent
31c0ec6d63
commit
e93bf0632b
@ -474,75 +474,91 @@ endfunction
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"FUNCTION: MenuController.showMenu() {{{3
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function! s:MenuController.showMenu()
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let curNode = s:TreeFileNode.GetSelected()
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if curNode ==# {}
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call s:echo("Put the cursor on a node first" )
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return
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endif
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call self._saveOptions()
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let self.selection = 0
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let key = ''
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while key != "\r"
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let prompt = ''
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let prompt .= "NERDTree Menu. Use j/k/enter and the shortcuts indicated\n"
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let prompt .= "==========================================================\n"
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try
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let self.selection = 0
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for i in range(0, len(self.menuItems)-1)
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if self.selection == i
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let prompt .= "> "
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else
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let prompt .= " "
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endif
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let done = 0
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while !done
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call self._redraw()
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echo self._prompt()
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let key = nr2char(getchar())
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let done = self._handleKeypress(key)
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endwhile
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let prompt .= self.menuItems[i].text . "\n"
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endfor
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if has("gui_running")
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redraw!
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else
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redraw
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if self.selection != -1
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let m = self._current()
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call m.execute()
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endif
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echo prompt
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let key = nr2char(getchar())
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if self._handleKeypress(key) == -1
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call self._restoreOptions()
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return
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endif
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endwhile
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call self._restoreOptions()
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let chosen = self.menuItems[self.selection]
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call chosen.execute()
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finally
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call self._restoreOptions()
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endtry
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endfunction
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"FUNCTION: MenuController._prompt() {{{3
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function! s:MenuController._prompt()
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let toReturn = ''
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let toReturn .= "NERDTree Menu. Use j/k/enter and the shortcuts indicated\n"
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let toReturn .= "==========================================================\n"
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for i in range(0, len(self.menuItems)-1)
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if self.selection == i
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let toReturn .= "> "
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else
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let toReturn .= " "
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endif
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let toReturn .= self.menuItems[i].text . "\n"
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endfor
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return toReturn
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endfunction
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"FUNCTION: MenuController._current(key) {{{3
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function! s:MenuController._current()
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return self.menuItems[self.selection]
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endfunction
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"FUNCTION: MenuController._handleKeypress(key) {{{3
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"changes the selection (if appropriate) and returns 1 if the user has made
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"their choice, 0 otherwise
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function! s:MenuController._handleKeypress(key)
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if a:key == 'j'
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if self.selection < len(self.menuItems)-1
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let self.selection += 1
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else
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let self.selection = 0
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endif
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call self._cursorDown()
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elseif a:key == 'k'
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if self.selection > 0
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let self.selection -= 1
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else
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let self.selection = len(self.menuItems)-1
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endif
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call self._cursorUp()
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elseif a:key == nr2char(27) "escape
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return -1
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let self.selection = -1
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return 1
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elseif a:key == "\r" || a:key == "\n" "enter and ctrl-j
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return 1
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else
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let index = self._nextIndexFor(a:key)
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if index != -1
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let self.selection = index
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if len(self._allIndexesFor(a:key)) == 1
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return 1
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endif
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endif
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endif
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return 0
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endfunction
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"FUNCTION: MenuController._allIndexesFor(shortcut) {{{3
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function! s:MenuController._allIndexesFor(shortcut)
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let toReturn = []
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for i in range(0, len(self.menuItems)-1)
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if self.menuItems[i].shortcut == a:shortcut
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call add(toReturn, i)
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endif
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endfor
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return toReturn
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endfunction
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"FUNCTION: MenuController._nextIndexFor(shortcut) {{{3
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@ -562,12 +578,30 @@ function! s:MenuController._nextIndexFor(shortcut)
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return -1
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endfunction
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"FUNCTION: MenuController._redraw() {{{3
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function! s:MenuController._redraw()
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if has("gui_running")
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redraw!
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else
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redraw
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endif
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endfunction
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"FUNCTION: MenuController._setCmdheight() {{{3
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function! s:MenuController._setCmdheight()
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if has("gui_running")
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let &cmdheight = len(self.menuItems) + 3
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else
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let &cmdheight = len(self.menuItems) + 2
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endif
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endfunction
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"FUNCTION: MenuController._saveOptions() {{{3
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function! s:MenuController._saveOptions()
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let self._oldLazyredraw = &lazyredraw
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let self._oldCmdheight = &cmdheight
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set lazyredraw
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let &cmdheight = len(self.menuItems) + 2 + has("gui_running")
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call self._setCmdheight()
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endfunction
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"FUNCTION: MenuController._restoreOptions() {{{3
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@ -576,6 +610,40 @@ function! s:MenuController._restoreOptions()
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let &lazyredraw = self._oldLazyredraw
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endfunction
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"FUNCTION: MenuController._cursorDown() {{{3
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"move the cursor to the next menu item, skipping separators
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function! s:MenuController._cursorDown()
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let done = 0
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while !done
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if self.selection < len(self.menuItems)-1
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let self.selection += 1
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else
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let self.selection = 0
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endif
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if !self._current().isSeparator()
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let done = 1
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endif
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endwhile
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endfunction
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"FUNCTION: MenuController._cursorUp() {{{3
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"move the cursor to the previous menu item, skipping separators
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function! s:MenuController._cursorUp()
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let done = 0
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while !done
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if self.selection > 0
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let self.selection -= 1
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else
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let self.selection = len(self.menuItems)-1
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endif
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if !self._current().isSeparator()
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let done = 1
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endif
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endwhile
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endfunction
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"CLASS: MenuItem {{{2
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"============================================================
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let s:MenuItem = {}
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@ -658,6 +726,11 @@ function! s:MenuItem.execute()
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endif
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endfunction
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"FUNCTION: MenuItem.isSeparator() {{{3
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function! s:MenuItem.isSeparator()
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return self.callback == -1
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endfunction
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"CLASS: TreeFileNode {{{2
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"This class is the parent of the TreeDirNode class and constitures the
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"'Component' part of the composite design pattern between the treenode
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@ -3739,6 +3812,12 @@ function! s:refreshCurrent()
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endfunction
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" FUNCTION: s:showMenu() {{{2
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function! s:showMenu()
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let curNode = s:TreeFileNode.GetSelected()
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if curNode ==# {}
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call s:echo("Put the cursor on a node first" )
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return
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endif
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let mc = s:MenuController.New(s:MenuItem.AllEnabled())
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call mc.showMenu()
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endfunction
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