Add hints extra for opening links (number keys only)

1 files changed, 65 insertions, 0 deletions

diff --git a/lua/null-browser/extras/hints.lua b/lua/null-browser/extras/hints.lua
new file mode 100644
index 0000000..f2ee21b
--- /dev/null
+++ b/lua/null-browser/extras/hints.lua
@@ -0,0 +1,65 @@
+local hints = {
+  config = {
+    mode = 'f',
+  },
+}
+
+local js_setup_code = ''
+
+function hints.init(on_ready)
+  hints.load_finder_js(function()
+    web.keymap.set(hints.config.mode, '<Esc>', function()
+      hints.stop()
+    end)
+
+    web.event.add_listener('KeyPressed', {
+      callback = function(event)
+        if web.keymap.get_mode() == hints.config.mode then
+          hints.filter_key(event.key)
+        end
+      end,
+    })
+
+    if type(on_ready) == 'function' then on_ready() end
+  end)
+end
+
+function hints.start(selector, new_view)
+  local open_in_new_view = new_view and 'true' or 'false'
+  web.view.run_js(
+    js_setup_code ..
+    ";_nullbrowser.finder.start('" ..
+    selector ..
+    "', " ..
+    open_in_new_view ..
+    ")"
+  )
+  web.schedule(function()
+    -- Trigger f mode after tick to avoid the trigger key (f) to get captured in event
+    web.keymap.set_mode(hints.config.mode)
+  end)
+end
+
+function hints.filter_key(key)
+  web.view.run_js("_nullbrowser.finder.filterOutByKey('" .. key .. "')")
+end
+
+function hints.stop()
+  web.keymap.set_mode('n')
+  web.view.run_js('_nullbrowser.finder.stop()')
+end
+
+function hints.load_finder_js(on_ready)
+  web.uv.fs_open('./assets/javascript/finder.js', 'r', 438, function(err, file)
+    if err then return end
+    if not file then return {} end
+    local stat = assert(web.uv.fs_fstat(file))
+    local js = assert(web.uv.fs_read(file, stat.size))
+    assert(web.uv.fs_close(file))
+    js_setup_code = js
+
+    on_ready()
+  end)
+end
+
+return hints