fix: trigger select-all via CDP commands field

CHANGELOG.md

@@ -5,6 +5,9 @@
 - `Ferrum::Frame#lifecycle_events` provides a list of frame's events like init, networkIdle, firstPaint, etc. [#583]
 - `Ferrum::Frame#idle?` whether frame was loaded [#583]
 
+### Fixed
+- `Ferrum::Node#type` / `Ferrum::Keyboard` now trigger the select-all editing shortcut (`Ctrl`/`Cmd`+`A`) by naming the CDP `commands` field, so selecting and replacing text in inputs and contenteditables works.
+
 ### Changed
 - `Ferrum::PendingConnectionsError` and `Ferrum::TimeoutError` were swallowed even though happening when traffic iterator results in empty array. [#583]
 

lib/ferrum/keyboard.rb

@@ -136,6 +136,13 @@ def normalize_keys(keys, pressed_keys = [], memo = [])
               modifiers: pressed.map { |k| MODIFIERS[k] }.reduce(0, :|)
             )
 
+            # Synthetic key events alone do not trigger the browser's editing
+            # shortcuts (e.g. select-all). When the chord matches a platform
+            # accelerator, name the editing command explicitly so Chrome
+            # executes it via the CDP `commands` field.
+            command = editing_command(pressed, char)
+            key = key.merge(commands: [command]) if command
+
             modifiers = pressed.map { |k| to_options(KEYS.fetch(KEYS_MAPPING[k.to_sym])) }
             modifiers + [to_options(key)]
           end.flatten
@@ -157,5 +164,17 @@ def combine_strings(keys)
     def to_options(hash)
       hash.inject({}) { |memo, (k, v)| memo.merge(k.to_sym => v) }
     end
+
+    # Names the CDP editing command for a modifier chord, or nil if the chord
+    # is not an editing accelerator. The accelerator modifier is Cmd on macOS
+    # and Ctrl elsewhere, matching Chrome's own key bindings. Currently only
+    # select-all is mapped; extend the guard for further commands as needed.
+    def editing_command(pressed, char)
+      return unless char.casecmp?("a")
+      return if pressed.include?("shift")
+
+      accelerator = Utils::Platform.mac? ? MODIFIERS["meta"] : MODIFIERS["ctrl"]
+      "selectAll" if pressed.map { |k| MODIFIERS[k] }.compact.uniq == [accelerator]
+    end
   end
 end

spec/node_spec.rb

@@ -516,6 +516,15 @@
         expect(input.value).to eq("Text appended")
       end
 
+      it "selects all in an input with the command modifier then clears" do
+        input = browser.at_css("#filled_input")
+        modifier = Ferrum::Utils::Platform.mac? ? :meta : :ctrl
+
+        input.focus.type([modifier, "a"], :backspace)
+
+        expect(input.value).to eq("")
+      end
+
       it "sends keys to empty textarea" do
         input = browser.at_css("#empty_textarea")
 
@@ -643,6 +652,15 @@
         expect(input.text).to eq("Content appended")
       end
 
+      it "selects all with the command modifier then clears" do
+        input = browser.at_css("#filled_div")
+        modifier = Ferrum::Utils::Platform.mac? ? :meta : :ctrl
+
+        input.focus.type([modifier, "a"], :backspace)
+
+        expect(input.text).to eq("")
+      end
+
       it "sets content" do
         input = browser.at_css("#filled_div")