ash: expose caption height and button statement on ARC windows to private

autotest JS

Some Tast Tests need to know the statement of ARC window caption, such
as whether caption buttons enable or visible. But currently there isn't any
function to get these information.

This CL add caption information of arc window in GetAppWindowList.

Bug: b/142446508
Bug: b/141978622
Test: tast -verbose run my_crbook arc.CompanionLibrary
Change-Id: Ib9c0ebde1ec2304fd5cd9d77523207b64deb7767
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1883453
Commit-Queue: Shengsong Tan <sstan@google.com>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Mitsuru Oshima <oshima@chromium.org>
Cr-Commit-Position: refs/heads/master@{#711105}

ash/autotest_private_api_utils.cc

@@ -4,6 +4,7 @@
 
 #include "ash/public/cpp/autotest_private_api_utils.h"
 
+#include "ash/frame/non_client_frame_view_ash.h"
 #include "ash/shell.h"
 #include "ash/wm/mru_window_tracker.h"
 #include "ash/wm/tablet_mode/scoped_skip_user_session_blocked_check.h"
@@ -16,4 +17,8 @@ std::vector<aura::Window*> GetAppWindowList() {
       ash::kAllDesks);
 }
 
-}  // namespace ash
+ash::HeaderView* GetHeaderViewForWindow(aura::Window* window) {
+  return ash::NonClientFrameViewAsh::Get(window)->GetHeaderView();
+}
+
+}  // namespace ash
\ No newline at end of file

ash/public/cpp/autotest_private_api_utils.h

@@ -8,6 +8,7 @@
 #include <vector>
 
 #include "ash/ash_export.h"
+#include "ash/frame/header_view.h"
 
 namespace aura {
 class Window;
@@ -19,6 +20,8 @@ namespace ash {
 // Get application windows, windows that are shown in overview grid.
 ASH_EXPORT std::vector<aura::Window*> GetAppWindowList();
 
+// Get HeaderView from application windows.
+ASH_EXPORT ash::HeaderView* GetHeaderViewForWindow(aura::Window* window);
 }  // namespace ash
 
 #endif  // ASH_PUBLIC_CPP_AUTOTEST_PRIVATE_API_UTILS_H_

chrome/browser/chromeos/extensions/autotest_private/autotest_private_api.cc

@@ -11,7 +11,9 @@
 #include "ash/public/cpp/app_types.h"
 #include "ash/public/cpp/ash_pref_names.h"
 #include "ash/public/cpp/autotest_private_api_utils.h"
+#include "ash/public/cpp/default_frame_header.h"
 #include "ash/public/cpp/desks_helper.h"
+#include "ash/public/cpp/frame_header.h"
 #include "ash/public/cpp/login_screen.h"
 #include "ash/public/cpp/overview_test_api.h"
 #include "ash/public/cpp/shelf_item.h"
@@ -2938,6 +2940,35 @@ AutotestPrivateGetAppWindowListFunction::Run() {
         static_cast<int>(ash::AppType::ARC_APP)) {
       window_info.arc_package_name = std::make_unique<std::string>(
           *window->GetProperty(ash::kArcPackageNameKey));
+
+      ash::HeaderView* header_view = ash::GetHeaderViewForWindow(window);
+      ash::DefaultFrameHeader* frame_header = header_view->GetFrameHeader();
+      window_info.caption_height = frame_header->GetHeaderHeight();
+
+      const ash::CaptionButtonModel* buttonModel =
+          header_view->caption_button_container()->model();
+      int caption_button_enabled_status = 0;
+      int caption_button_visible_status = 0;
+      constexpr views::CaptionButtonIcon all_button_icons[] = {
+          views::CAPTION_BUTTON_ICON_MINIMIZE,
+          views::CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE,
+          views::CAPTION_BUTTON_ICON_CLOSE,
+          views::CAPTION_BUTTON_ICON_LEFT_SNAPPED,
+          views::CAPTION_BUTTON_ICON_RIGHT_SNAPPED,
+          views::CAPTION_BUTTON_ICON_BACK,
+          views::CAPTION_BUTTON_ICON_LOCATION,
+          views::CAPTION_BUTTON_ICON_MENU,
+          views::CAPTION_BUTTON_ICON_ZOOM,
+          views::CAPTION_BUTTON_ICON_COUNT};
+
+      for (const auto button : all_button_icons) {
+        if (buttonModel->IsEnabled(button))
+          caption_button_enabled_status |= (1 << button);
+        if (buttonModel->IsVisible(button))
+          caption_button_visible_status |= (1 << button);
+      }
+      window_info.caption_button_enabled_status = caption_button_enabled_status;
+      window_info.caption_button_visible_status = caption_button_visible_status;
     }
     result_list.emplace_back(std::move(window_info));
   }

chrome/common/extensions/api/autotest_private.idl

@@ -347,6 +347,12 @@ namespace autotestPrivate {
     boolean hasFocus;
     boolean onActiveDesk;
     boolean hasCapture;
+
+    // Window frame info
+    long captionHeight;
+    long captionButtonEnabledStatus;
+    long captionButtonVisibleStatus;
+
     DOMString? arcPackageName;
   };