contrib/modules/mode-line-buttons.js

   1 /**
   2  * (C) Copyright 2009 David Kettler
   3  *
   4  * Use, modification, and distribution are subject to the terms specified in the
   5  * COPYING file.
   6 **/
   7
   8 require("mode-line.js");
   9
  10 function button_widget (window) {
  11     this.class_name = "button-widget";
  12     text_widget.call(this, window);
  13 }
  14 button_widget.prototype = {
  15     __proto__: text_widget.prototype,
  16
  17     make_element: function (window) {
  18         var command = this.command;
  19         var element = create_XUL(window, "image");
  20
  21         element.addEventListener("click", function (event) {
  22             var I = new interactive_context(window.buffers.current);
  23             co_call(call_interactively(I, command));
  24         }, false);
  25
  26         element.addEventListener("mouseover", function (event) {
  27             var msg = "Button: " + command;
  28             var keymaps = get_current_keymaps(window);
  29             var list = keymap_lookup_command(keymaps, command);
  30             if (list.length)
  31                 msg += " (which is on key " + list.join(", ") + ")";
  32             window.minibuffer.show(msg);
  33         }, false);
  34
  35         element.addEventListener("mouseout", function (event) {
  36             window.minibuffer.show("");
  37         }, false);
  38
  39         element.setAttribute("id", "button-widget-" + command);
  40         element.setAttribute("class", this.class_name);
  41         for (var a in this.attributes) {
  42             element.setAttribute(a, this.attributes[a]);
  43         }
  44
  45         return element;
  46     }
  47 };
  48
  49 function make_button_widget (command, attributes) {
  50     if (typeof attributes == "string")
  51         // Simple case
  52         attributes = { src: "moz-icon://stock/gtk-" + attributes };
  53
  54     function new_widget (window) {
  55         button_widget.call(this, window);
  56     }
  57     new_widget.prototype = {
  58         __proto__: button_widget.prototype,
  59         command: command,
  60         attributes: attributes
  61     }
  62     new_widget.mode_line_adder = function (window) {
  63         var widget = new new_widget(window);
  64         window.mode_line.add_widget(widget, widget.make_element(window));
  65     }
  66
  67     return new_widget;
  68 }
  69
  70 function mode_line_add_buttons (buttons, prepend) {
  71     for (var i = 0, n = buttons.length; i < n; i++) {
  72         var j = prepend ? n - i - 1 : i;
  73         var w = make_button_widget(buttons[j][0], buttons[j][1]);
  74         add_hook("mode_line_hook", mode_line_adder(w), prepend);
  75     }
  76 }
  77
  78 standard_mode_line_buttons = [
  79     ["find-url", "open"],
  80     ["find-url-new-buffer", "new"],
  81     ["back", "go-back"],
  82     ["forward", "go-forward"],
  83     ["reload", "refresh"],
  84     ["kill-current-buffer", "close"],
  85     ["buffer-previous", "go-up"],
  86     ["buffer-next", "go-down"],
  87     ["help-page", "help"],
  88 ];