Add some MOW bindings to REPL mode. Add counts to MOW bindings.

common/content/mow.js

@@ -306,13 +306,13 @@ var MOW = Module("mow", {
         let bind = function bind(keys, description, action, test, default_) {
             mappings.add([modes.OUTPUT_MULTILINE],
                 keys, description,
-                function (command) {
+                function (args) {
                     if (!options["more"])
                         var res = PASS;
-                    else if (test && !test(command))
+                    else if (test && !test(args))
                         res = default_;
                     else
-                        res = action.call(command);
+                        res = action.call(this, args);
 
                     if (res === PASS || res === DROP)
                         modes.pop();
@@ -321,48 +321,50 @@ var MOW = Module("mow", {
                     if (res === BEEP)
                         dactyl.beep();
                     else if (res === PASS)
-                        events.feedkeys(command);
+                        events.feedkeys(args.command);
+                }, {
+                    count: action.length > 0
                 });
         };
 
         bind(["j", "<C-e>", "<Down>"], "Scroll down one line",
-             function () { mow.scrollVertical("lines", 1); },
+             function ({ count }) { mow.scrollVertical("lines", 1 * (count || 1)); },
              function () mow.isScrollable(1), BEEP);
 
         bind(["k", "<C-y>", "<Up>"], "Scroll up one line",
-             function () { mow.scrollVertical("lines", -1); },
+             function ({ count }) { mow.scrollVertical("lines", -1 * (count || 1)); },
              function () mow.isScrollable(-1), BEEP);
 
         bind(["<C-j>", "<C-m>", "<Return>"], "Scroll down one line, exit on last line",
-             function () { mow.scrollVertical("lines", 1); },
+             function ({ count }) { mow.scrollVertical("lines", 1 * (count || 1)); },
              function () mow.isScrollable(1), DROP);
 
         // half page down
         bind(["<C-d>"], "Scroll down half a page",
-             function () { mow.scrollVertical("pages", .5); },
+             function ({ count }) { mow.scrollVertical("pages", .5 * (count || 1)); },
              function () mow.isScrollable(1), BEEP);
 
         bind(["<C-f>", "<PageDown>"], "Scroll down one page",
-             function () { mow.scrollVertical("pages", 1); },
+             function ({ count }) { mow.scrollVertical("pages", 1 * (count || 1)); },
              function () mow.isScrollable(1), BEEP);
 
         bind(["<Space>"], "Scroll down one page",
-             function () { mow.scrollVertical("pages", 1); },
+             function ({ count }) { mow.scrollVertical("pages", 1 * (count || 1)); },
              function () mow.isScrollable(1), DROP);
 
         bind(["<C-u>"], "Scroll up half a page",
-             function () { mow.scrollVertical("pages", -.5); },
+             function ({ count }) { mow.scrollVertical("pages", -.5 * (count || 1)); },
              function () mow.isScrollable(-1), BEEP);
 
         bind(["<C-b>", "<PageUp>"], "Scroll up half a page",
-             function () { mow.scrollVertical("pages", -1); },
+             function ({ count }) { mow.scrollVertical("pages", -1 * (count || 1)); },
              function () mow.isScrollable(-1), BEEP);
 
         bind(["gg"], "Scroll to the beginning of output",
              function () { mow.scrollToPercent(null, 0); });
 
         bind(["G"], "Scroll to the end of output",
-             function () { mow.body.scrollTop = mow.body.scrollHeight; });
+             function ({ count }) { mow.scrollToPercent(null, count || 100); });
 
         // copy text to clipboard
         bind(["<C-y>"], "Yank selection to clipboard",

common/modules/javascript.jsm

@@ -693,7 +693,7 @@ var JavaScript = Module("javascript", {
         });
     },
     commandline: function initCommandLine(dactyl, modules, window) {
-        const { modes } = modules;
+        const { Buffer, modes } = modules;
 
         var REPL = Class("REPL", {
             init: function init(context) {
@@ -741,7 +741,9 @@ var JavaScript = Module("javascript", {
                               this.document, this);
 
                 return this.rootNode;
-            })
+            }),
+
+            __noSuchMethod__: function (meth, args) Buffer[meth].apply(Buffer, [this.rootNode].concat(args)),
         });
 
         modules.CommandREPLMode = Class("CommandREPLMode", modules.CommandMode, {
@@ -816,9 +818,29 @@ var JavaScript = Module("javascript", {
     mappings: function initMappings(dactyl, modules, window) {
         const { mappings, modes } = modules;
 
-        mappings.add([modes.REPL], ["<Return>"],
+        function bind() mappings.add.apply(mappings,
-            "Accept the current input",
+                                           [[modes.REPL]].concat(Array.slice(arguments)))
-            function ({ self }) { self.accept(); });
+
+        bind(["<Return>"], "Accept the current input",
+             function ({ self }) { self.accept(); });
+
+        bind(["<C-e>"], "Scroll down one line",
+             function ({ self }) { self.repl.scrollVertical("lines", 1); });
+
+        bind(["<C-y>"], "Scroll up one line",
+             function ({ self }) { self.repl.scrollVertical("lines", -1); });
+
+        bind(["<C-d>"], "Scroll down half a page",
+             function ({ self }) { self.repl.scrollVertical("pages", .5); });
+
+        bind(["<C-f>", "<PageDown>"], "Scroll down one page",
+             function ({ self }) { self.repl.scrollVertical("pages", 1); });
+
+        bind(["<C-u>"], "Scroll up half a page",
+             function ({ self }) { self.repl.scrollVertical("pages", -.5); });
+
+        bind(["<C-b>", "<PageUp>"], "Scroll up half a page",
+             function ({ self }) { self.repl.scrollVertical("pages", -1); });
     },
     options: function (dactyl, modules, window) {
         modules.options.add(["jsdebugger", "jsd"],