chore: rename atom -> electron (#21986)

shell/renderer/electron_autofill_agent.cc

@@ -0,0 +1,226 @@
+// Copyright (c) 2017 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "shell/renderer/electron_autofill_agent.h"
+
+#include <utility>
+#include <vector>
+
+#include "content/public/renderer/render_frame.h"
+#include "content/public/renderer/render_view.h"
+#include "third_party/blink/public/common/associated_interfaces/associated_interface_provider.h"
+#include "third_party/blink/public/common/input/web_keyboard_event.h"
+#include "third_party/blink/public/platform/web_string.h"
+#include "third_party/blink/public/web/web_document.h"
+#include "third_party/blink/public/web/web_local_frame.h"
+#include "third_party/blink/public/web/web_option_element.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+#include "ui/gfx/geometry/rect_f.h"
+
+namespace electron {
+
+namespace {
+const size_t kMaxDataLength = 1024;
+const size_t kMaxListSize = 512;
+
+void GetDataListSuggestions(const blink::WebInputElement& element,
+                            std::vector<base::string16>* values,
+                            std::vector<base::string16>* labels) {
+  for (const auto& option : element.FilteredDataListOptions()) {
+    values->push_back(option.Value().Utf16());
+    if (option.Value() != option.Label())
+      labels->push_back(option.Label().Utf16());
+    else
+      labels->push_back(base::string16());
+  }
+}
+
+void TrimStringVectorForIPC(std::vector<base::string16>* strings) {
+  // Limit the size of the vector.
+  if (strings->size() > kMaxListSize)
+    strings->resize(kMaxListSize);
+
+  // Limit the size of the strings in the vector.
+  for (auto& str : *strings) {
+    if (str.length() > kMaxDataLength)
+      str.resize(kMaxDataLength);
+  }
+}
+}  // namespace
+
+AutofillAgent::AutofillAgent(content::RenderFrame* frame,
+                             blink::AssociatedInterfaceRegistry* registry)
+    : content::RenderFrameObserver(frame), weak_ptr_factory_(this) {
+  render_frame()->GetWebFrame()->SetAutofillClient(this);
+  registry->AddInterface(
+      base::Bind(&AutofillAgent::BindReceiver, base::Unretained(this)));
+}
+
+AutofillAgent::~AutofillAgent() = default;
+
+void AutofillAgent::BindReceiver(
+    mojo::PendingAssociatedReceiver<mojom::ElectronAutofillAgent> receiver) {
+  receiver_.Bind(std::move(receiver));
+}
+
+void AutofillAgent::OnDestruct() {
+  delete this;
+}
+
+void AutofillAgent::DidChangeScrollOffset() {
+  HidePopup();
+}
+
+void AutofillAgent::FocusedElementChanged(const blink::WebElement&) {
+  focused_node_was_last_clicked_ = false;
+  was_focused_before_now_ = false;
+  HidePopup();
+}
+
+void AutofillAgent::TextFieldDidEndEditing(const blink::WebInputElement&) {
+  HidePopup();
+}
+
+void AutofillAgent::TextFieldDidChange(
+    const blink::WebFormControlElement& element) {
+  if (!IsUserGesture() && !render_frame()->IsPasting())
+    return;
+
+  weak_ptr_factory_.InvalidateWeakPtrs();
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::BindOnce(&AutofillAgent::TextFieldDidChangeImpl,
+                                weak_ptr_factory_.GetWeakPtr(), element));
+}
+
+void AutofillAgent::TextFieldDidChangeImpl(
+    const blink::WebFormControlElement& element) {
+  ShowSuggestionsOptions options;
+  options.requires_caret_at_end = true;
+  ShowSuggestions(element, options);
+}
+
+void AutofillAgent::TextFieldDidReceiveKeyDown(
+    const blink::WebInputElement& element,
+    const blink::WebKeyboardEvent& event) {
+  if (event.windows_key_code == ui::VKEY_DOWN ||
+      event.windows_key_code == ui::VKEY_UP) {
+    ShowSuggestionsOptions options;
+    options.autofill_on_empty_values = true;
+    options.requires_caret_at_end = true;
+    ShowSuggestions(element, options);
+  }
+}
+
+void AutofillAgent::OpenTextDataListChooser(
+    const blink::WebInputElement& element) {
+  ShowSuggestionsOptions options;
+  options.autofill_on_empty_values = true;
+  ShowSuggestions(element, options);
+}
+
+void AutofillAgent::DataListOptionsChanged(
+    const blink::WebInputElement& element) {
+  if (!element.Focused())
+    return;
+
+  ShowSuggestionsOptions options;
+  options.requires_caret_at_end = true;
+  ShowSuggestions(element, options);
+}
+
+AutofillAgent::ShowSuggestionsOptions::ShowSuggestionsOptions()
+    : autofill_on_empty_values(false), requires_caret_at_end(false) {}
+
+void AutofillAgent::ShowSuggestions(const blink::WebFormControlElement& element,
+                                    const ShowSuggestionsOptions& options) {
+  if (!element.IsEnabled() || element.IsReadOnly())
+    return;
+  const blink::WebInputElement* input_element = ToWebInputElement(&element);
+  if (input_element) {
+    if (!input_element->IsTextField())
+      return;
+  }
+
+  blink::WebString value = element.EditingValue();
+  if (value.length() > kMaxDataLength ||
+      (!options.autofill_on_empty_values && value.IsEmpty()) ||
+      (options.requires_caret_at_end &&
+       (element.SelectionStart() != element.SelectionEnd() ||
+        element.SelectionEnd() != static_cast<int>(value.length())))) {
+    HidePopup();
+    return;
+  }
+
+  std::vector<base::string16> data_list_values;
+  std::vector<base::string16> data_list_labels;
+  if (input_element) {
+    GetDataListSuggestions(*input_element, &data_list_values,
+                           &data_list_labels);
+    TrimStringVectorForIPC(&data_list_values);
+    TrimStringVectorForIPC(&data_list_labels);
+  }
+
+  ShowPopup(element, data_list_values, data_list_labels);
+}
+
+void AutofillAgent::DidReceiveLeftMouseDownOrGestureTapInNode(
+    const blink::WebNode& node) {
+  focused_node_was_last_clicked_ = !node.IsNull() && node.Focused();
+}
+
+void AutofillAgent::DidCompleteFocusChangeInFrame() {
+  DoFocusChangeComplete();
+}
+
+bool AutofillAgent::IsUserGesture() const {
+  return render_frame()->GetWebFrame()->HasTransientUserActivation();
+}
+
+void AutofillAgent::HidePopup() {
+  GetAutofillDriver()->HideAutofillPopup();
+}
+
+void AutofillAgent::ShowPopup(const blink::WebFormControlElement& element,
+                              const std::vector<base::string16>& values,
+                              const std::vector<base::string16>& labels) {
+  gfx::RectF bounds = render_frame()->ElementBoundsInWindow(element);
+  GetAutofillDriver()->ShowAutofillPopup(bounds, values, labels);
+}
+
+void AutofillAgent::AcceptDataListSuggestion(const base::string16& suggestion) {
+  auto element = render_frame()->GetWebFrame()->GetDocument().FocusedElement();
+  if (element.IsFormControlElement()) {
+    ToWebInputElement(&element)->SetAutofillValue(
+        blink::WebString::FromUTF16(suggestion));
+  }
+}
+
+void AutofillAgent::DoFocusChangeComplete() {
+  auto element = render_frame()->GetWebFrame()->GetDocument().FocusedElement();
+  if (element.IsNull() || !element.IsFormControlElement())
+    return;
+
+  if (focused_node_was_last_clicked_ && was_focused_before_now_) {
+    ShowSuggestionsOptions options;
+    options.autofill_on_empty_values = true;
+    auto* input_element = ToWebInputElement(&element);
+    if (input_element)
+      ShowSuggestions(*input_element, options);
+  }
+
+  was_focused_before_now_ = true;
+  focused_node_was_last_clicked_ = false;
+}
+
+const mojo::AssociatedRemote<mojom::ElectronAutofillDriver>&
+AutofillAgent::GetAutofillDriver() {
+  if (!autofill_driver_) {
+    render_frame()->GetRemoteAssociatedInterfaces()->GetInterface(
+        &autofill_driver_);
+  }
+
+  return autofill_driver_;
+}
+
+}  // namespace electron