PassNextKey; initial implementation.

This implements a passNextKey command (initially for normal mode only),
as discussed in #1955.

3 files changed, 34 insertions, 1 deletions

diff --git a/background_scripts/commands.coffee b/background_scripts/commands.coffee
index db8cc60f..07f3640a 100644
--- a/background_scripts/commands.coffee
+++ b/background_scripts/commands.coffee
@@ -96,6 +96,7 @@ Commands =
       "goUp",
       "goToRoot",
       "enterInsertMode",
+      "passNextKey",
       "enterVisualMode",
       "enterVisualLineMode",
       "focusInput",
@@ -164,7 +165,8 @@ Commands =
     "moveTabRight",
     "closeTabsOnLeft",
     "closeTabsOnRight",
-    "closeOtherTabs"]
+    "closeOtherTabs",
+    "passNextKey"]
 
 defaultKeyMappings =
   "?": "showHelp"
@@ -277,6 +279,7 @@ commandDescriptions =
   openCopiedUrlInNewTab: ["Open the clipboard's URL in a new tab", { background: true, repeatLimit: 20 }]
 
   enterInsertMode: ["Enter insert mode", { noRepeat: true }]
+  passNextKey: ["Pass the next key to Chrome", { passCountToFunction: true }]
   enterVisualMode: ["Enter visual mode", { noRepeat: true }]
   enterVisualLineMode: ["Enter visual line mode", { noRepeat: true }]
 
diff --git a/content_scripts/mode_insert.coffee b/content_scripts/mode_insert.coffee
index 0b040e5d..8dd02530 100644
--- a/content_scripts/mode_insert.coffee
+++ b/content_scripts/mode_insert.coffee
@@ -98,5 +98,32 @@ class InsertMode extends Mode
   @suppressedEvent: null
   @suppressEvent: (event) -> @suppressedEvent = event
 
+# This implements the pasNexKey command.
+class PassNextKeyMode extends Mode
+  constructor: (count = 1) ->
+    seenKeyDown = false
+    keyDownCount = 0
+
+    super
+      name: "pass-next-key"
+      indicator: "Pass next key."
+      # We exit on blur because, once we lose the focus, we can no longer track key events.
+      exitOnBlur: window
+      keypress: =>
+        @stopBubblingAndTrue
+
+      keydown: =>
+        seenKeyDown = true
+        keyDownCount += 1
+        @stopBubblingAndTrue
+
+      keyup: =>
+        if seenKeyDown
+          unless 0 < --keyDownCount
+            unless 0 < --count
+              @exit()
+        @stopBubblingAndTrue
+
 root = exports ? window
 root.InsertMode = InsertMode
+root.PassNextKeyMode = PassNextKeyMode
diff --git a/content_scripts/vimium_frontend.coffee b/content_scripts/vimium_frontend.coffee
index f78b79b0..01bd4ebc 100644
--- a/content_scripts/vimium_frontend.coffee
+++ b/content_scripts/vimium_frontend.coffee
@@ -368,6 +368,9 @@ extend window,
   enterVisualLineMode: ->
     new VisualLineMode
 
+  passNextKey: (count) ->
+    new PassNextKeyMode count
+
   focusInput: do ->
     # Track the most recently focused input element.
     recentlyFocusedElement = null