When I am using yasnippet for a keyword that has more than one choices it opens up a new buffer instead of dropdown menu. How do I configure emacs to display a dropdown menu? Please see this cedet example for what I mean.
put yas-dropdown-prompt (or yas-x-prompt, if you want graphical menu like on cedet screenshots) at the first position in yas-prompt-functions variable, like this:
(require 'dropdown-list) ;; this is a separate package, that needs to be installed
(setq yas-prompt-functions
'(yas-dropdown-prompt
yas-ido-prompt
yas-x-prompt
yas-completing-prompt
yas-no-prompt))
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I use Emacs. However, I am not familiar with Lisp although I do know some functional programming, and hence I never really understood how to customize the init.el.
So basically, I want to be able to enable the toolbar mode and menubar mode only if I am in R-mode.
I know that to enable these mode simply requires:
(tool-bar-mode 1) and (menu-bar-mode 1)
but what if I want to do this locally, i.e. enable them only if I am in R-mode.
What should I put in the init.el ?
It's possible with this advice:
(defadvice select-window (after select-window-change-menubar activate)
(let ((yes-or-no
(if (memq major-mode '(r-mode lisp-interaction-mode))
1 -1)))
(menu-bar-mode yes-or-no)
(tool-bar-mode yes-or-no)))
I added two modes to the list for now, lisp-interaction-mode is the
mode of the *scratch* buffer, so that it's easy to test if the
advice works.
It's super-annoying, but kind of cool at the same time. I hope it's
what you want.
The features I describe here are close to what you are asking, but not an exact match. If your real need is to not have the tool bar around all the time when you don't need it, then they might help.
Library Tool-Bar+ provides two possibilities that limit when a tool bar is shown:
tool-bar-here-mode:
Enable the tool bar for specific frames only. Presences or absence of the tool bar is a frame thing, not a window or buffer/mode thing. When present, the actual contents of the tool bar (its icons) are specific to the selected window and its buffer. But whether or not the tool bar is shown has to do with the frame.
You enable showing the tool bar for the selected frame with command tool-bar-here-mode. You can add this to a mode hook, so that when a given mode is enabled so is the tool bar:
(add-hook 'info-mode (lambda () (tool-bar-here-mode 1)))
But that does not turn the mode off when the same frame no longer shows a buffer with that mode. In this regard it does not answer your question exactly.
tool-bar-popup-mode:
Hide the tool bar, and just put a Buttons entry in the menu-bar. When you click it the tool bar pops up for a single tool-bar action. So:
a. Click Buttons - the tool-bar pops up.
b. Click a tool-bar icon to effect its action - then the tool bar is hidden again.
For the toolbar, you can bind it to one of your mouse buttons or a key-sequence. For example, try this in your .emacs file:
(global-set-key [mouse-8] 'tool-bar-here-mode)
(tool-bar-pop-up-mode 1)
Depending on your mouse, you'll need to change 'mouse-8' to reflect the mouse button you wish to bind to. (Hint, click your desired mouse button while Emacs has the focus and you will see a message at the bottom like:
is undefined
Alternatively, you can bind to a key on your keyboard, like for instance:
(global-set-key (kbd "C-.") 'tool-bar-here-mode)
which will bind it to the CTRL-.
How are we supposed to configure DrRacket so that it does not use Emacs key bindings? Like I type C-s and it just saves the code instead of bringing up the search line. Or I use C-x C-f and it won't open another file. The DrRacket documentation claims to not use Emacs bindings but it obviously does.
You want to disable the check box, Enable keybindings in menus.
Unfortunately this checkbox is a bit buried:
Open the Racket Preferences dialog.
Click the Editing tab.
There's a row of sub-tabs for that. Click the General sub-tab.
A few items down you should see the Enable keybindings in menus check box. Un-check it.
I use emacs in terminal mode. I know how to get the menu through F10 key. Emacs used to show the menu in terminal mode as text in a separate buffer. Either since a recent update, or I installed some package, I notice emacs starts to create a graphic drop-down list for menu items (see the screenshot). However, I only see it on one of my computer (Mac OS), my other computers still show the menu in "text mode". Can anyone tell me how to enable the graphic dropdown list menu feature? Is this a new feature of latest Emacs 24.3 or it can be enabled via some package?
This is described in the NEWS file for Emacs 24.4:
* Emacs now supports menus on text-mode terminals.
If the terminal supports a mouse, clicking on the menu bar, or on
sensitive portions of the mode line or header line, will drop down the
menu defined at that position. Likewise, clicking C-mouse-2 or
C-mouse-2 or C-mouse-3 on the text area will pop up the menus defined
for those locations.
If the text terminal does not support a mouse, you can activate the
first menu-bar menu by typing F10, which invokes `menu-bar-open'.
If you want the previous behavior, whereby F10 invoked `tmm-menubar',
customize the option `tty-menu-open-use-tmm' to a non-nil value.
(Typing M-` always invokes `tmm-menubar', even if `tty-menu-open-use-tmm'
is nil.)
Looks like a nice feature.
I have installed YaSnippet in my emacs. Every time I start emacs, I have to turn on the menu bar manually by M-x menu-bar-mode, how do I load it by default ?
Also strangely the YaSnippet menu shows up the first time the menu bar comes up, however after I move to another buffer and back, I cant see the menu anymore ! How do I get it back without restarting emacs?
The menu bar is loaded by default in emacs. Therefore if you have to turn in on in every buffer it means that you have disabled it in your init file. Remove a line that would say something like (menu-bar-mode 0).
To start menu-bar-mode automatically, just put (menu-bar-mode 1) in your ~/.emacs
I'm afraid your yasnippet problem is outside of my realm of lore :(
I'm a new emacs user using emacs for the awesome org-mode. I have links to all my org files at the top of my pages but everytime I click a link it splits my window, so I only have half of the screen estate available. How do I set it so that emacs does not split the window horizontally but rather opens up a new window for my links?
I'm assuming you mean you want to open the link in a new frame. (Emacs terminology is a bit different from other GUI apps, because Emacs predates X11. What would be called a "window" in other apps is called a "frame" in Emacs, because "window" already had a specific meaning in Emacs, and was used in the names of lots of functions.) What's happening now is that you have a frame containing one window, and Emacs is splitting that window to form two windows.
You need to customize org-link-frame-setup to use find-file-other-frame instead of the default find-file-other-window.
You can do this by typing M-x customize-variable <ENTER> org-link-frame-setup <ENTER>. Click the Value Menu next to find-file-other-window and select find-file-other-frame, then click Save for future sessions.
One option is to tell Emacs to never split windows, which can be done like so:
(setq same-window-regexps '("."))
This will keep your window from splitting, and then you use your regular commands to switch buffers to get back to what you were looking at.
This is as opposed to what it sounds like you were asking for, which was new frames, which IMO doesn't really help if you have limited screen real estate because you're now having to switch frames (graphical windows).