Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / ash / display / display_change_observer_chromeos.cc
index 97c9d26..6152004 100644 (file)
@@ -7,6 +7,8 @@
 #include <algorithm>
 #include <map>
 #include <set>
+#include <string>
+#include <utility>
 #include <vector>
 
 #include "ash/ash_switches.h"
 #include "ash/display/display_layout_store.h"
 #include "ash/display/display_manager.h"
 #include "ash/shell.h"
+#include "ash/touch/touchscreen_util.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "grit/ash_strings.h"
 #include "ui/base/l10n/l10n_util.h"
-#include "ui/base/x/x11_util.h"
 #include "ui/compositor/dip_util.h"
-#include "ui/display/chromeos/display_mode.h"
-#include "ui/display/chromeos/display_snapshot.h"
+#include "ui/display/types/display_mode.h"
+#include "ui/display/types/display_snapshot.h"
+#include "ui/display/util/display_util.h"
+#include "ui/events/devices/device_data_manager.h"
+#include "ui/events/devices/touchscreen_device.h"
 #include "ui/gfx/display.h"
+#include "ui/wm/core/user_activity_detector.h"
 
 namespace ash {
-namespace internal {
 
-using ui::OutputConfigurator;
+using ui::DisplayConfigurator;
 
 namespace {
 
-// The DPI threshold to detect high density screen.
-// Higher DPI than this will use device_scale_factor=2.
-const unsigned int kHighDensityDPIThreshold = 170;
+// The DPI threshold to determine the device scale factor.
+// DPI higher than |dpi| will use |device_scale_factor|.
+struct DeviceScaleFactorDPIThreshold {
+  float dpi;
+  float device_scale_factor;
+};
+
+const DeviceScaleFactorDPIThreshold kThresholdTable[] = {
+  {180.0f, 2.0f},
+  {150.0f, 1.25f},
+  {0.0f, 1.0f},
+};
 
 // 1 inch in mm.
 const float kInchInMm = 25.4f;
 
-// Display mode list is sorted by (in descending priority):
-//  * the area in pixels.
-//  * refresh rate.
+// The minimum pixel width whose monitor can be called as '4K'.
+const int kMinimumWidthFor4K = 3840;
+
+// The list of device scale factors (in addition to 1.0f) which is
+// available in extrenal large monitors.
+const float kAdditionalDeviceScaleFactorsFor4k[] = {1.25f, 2.0f};
+
+// Display mode list is sorted by:
+//  * the area in pixels in ascending order
+//  * refresh rate in descending order
 struct DisplayModeSorter {
   bool operator()(const DisplayMode& a, const DisplayMode& b) {
-    if (a.size.GetArea() == b.size.GetArea())
+    gfx::Size size_a_dip = a.GetSizeInDIP();
+    gfx::Size size_b_dip = b.GetSizeInDIP();
+    if (size_a_dip.GetArea() == size_b_dip.GetArea())
       return (a.refresh_rate > b.refresh_rate);
-    return (a.size.GetArea() > b.size.GetArea());
+    return (size_a_dip.GetArea() < size_b_dip.GetArea());
   }
 };
 
 }  // namespace
 
 // static
-std::vector<DisplayMode> DisplayChangeObserver::GetDisplayModeList(
-    const OutputConfigurator::DisplayState& output) {
+std::vector<DisplayMode> DisplayChangeObserver::GetInternalDisplayModeList(
+    const DisplayInfo& display_info,
+    const DisplayConfigurator::DisplayState& output) {
+  std::vector<DisplayMode> display_mode_list;
+  const ui::DisplayMode* ui_native_mode = output.display->native_mode();
+  DisplayMode native_mode(ui_native_mode->size(),
+                          ui_native_mode->refresh_rate(),
+                          ui_native_mode->is_interlaced(),
+                          true);
+  native_mode.device_scale_factor = display_info.device_scale_factor();
+  std::vector<float> ui_scales =
+      DisplayManager::GetScalesForDisplay(display_info);
+  float native_ui_scale = (display_info.device_scale_factor() == 1.25f) ?
+      1.0f : display_info.device_scale_factor();
+  for (size_t i = 0; i < ui_scales.size(); ++i) {
+    DisplayMode mode = native_mode;
+    mode.ui_scale = ui_scales[i];
+    mode.native = (ui_scales[i] == native_ui_scale);
+    display_mode_list.push_back(mode);
+  }
+
+  std::sort(
+      display_mode_list.begin(), display_mode_list.end(), DisplayModeSorter());
+  return display_mode_list;
+}
+
+// static
+std::vector<DisplayMode> DisplayChangeObserver::GetExternalDisplayModeList(
+    const DisplayConfigurator::DisplayState& output) {
   typedef std::map<std::pair<int, int>, DisplayMode> DisplayModeMap;
   DisplayModeMap display_mode_map;
 
+  DisplayMode native_mode;
   for (std::vector<const ui::DisplayMode*>::const_iterator it =
            output.display->modes().begin();
        it != output.display->modes().end();
@@ -68,6 +119,8 @@ std::vector<DisplayMode> DisplayChangeObserver::GetDisplayModeList(
                                    mode_info.refresh_rate(),
                                    mode_info.is_interlaced(),
                                    output.display->native_mode() == *it);
+    if (display_mode.native)
+      native_mode = display_mode;
 
     // Add the display mode if it isn't already present and override interlaced
     // display modes with non-interlaced ones.
@@ -84,6 +137,29 @@ std::vector<DisplayMode> DisplayChangeObserver::GetDisplayModeList(
        ++iter) {
     display_mode_list.push_back(iter->second);
   }
+
+  if (output.display->native_mode()) {
+    const std::pair<int, int> size(native_mode.size.width(),
+                                   native_mode.size.height());
+    DisplayModeMap::iterator it = display_mode_map.find(size);
+    DCHECK(it != display_mode_map.end())
+        << "Native mode must be part of the mode list.";
+
+    // If the native mode was replaced re-add it.
+    if (!it->second.native)
+      display_mode_list.push_back(native_mode);
+  }
+
+  if (native_mode.size.width() >= kMinimumWidthFor4K) {
+    for (size_t i = 0; i < arraysize(kAdditionalDeviceScaleFactorsFor4k);
+         ++i) {
+      DisplayMode mode = native_mode;
+      mode.device_scale_factor = kAdditionalDeviceScaleFactorsFor4k[i];
+      mode.native = false;
+      display_mode_list.push_back(mode);
+    }
+  }
+
   std::sort(
       display_mode_list.begin(), display_mode_list.end(), DisplayModeSorter());
   return display_mode_list;
@@ -91,20 +167,22 @@ std::vector<DisplayMode> DisplayChangeObserver::GetDisplayModeList(
 
 DisplayChangeObserver::DisplayChangeObserver() {
   Shell::GetInstance()->AddShellObserver(this);
+  ui::DeviceDataManager::GetInstance()->AddObserver(this);
 }
 
 DisplayChangeObserver::~DisplayChangeObserver() {
+  ui::DeviceDataManager::GetInstance()->RemoveObserver(this);
   Shell::GetInstance()->RemoveShellObserver(this);
 }
 
-ui::OutputState DisplayChangeObserver::GetStateForDisplayIds(
+ui::MultipleDisplayState DisplayChangeObserver::GetStateForDisplayIds(
     const std::vector<int64>& display_ids) const {
   CHECK_EQ(2U, display_ids.size());
   DisplayIdPair pair = std::make_pair(display_ids[0], display_ids[1]);
   DisplayLayout layout = Shell::GetInstance()->display_manager()->
       layout_store()->GetRegisteredDisplayLayout(pair);
-  return layout.mirrored ? ui::OUTPUT_STATE_DUAL_MIRROR :
-                           ui::OUTPUT_STATE_DUAL_EXTENDED;
+  return layout.mirrored ? ui::MULTIPLE_DISPLAY_STATE_DUAL_MIRROR :
+                           ui::MULTIPLE_DISPLAY_STATE_DUAL_EXTENDED;
 }
 
 bool DisplayChangeObserver::GetResolutionForDisplayId(int64 display_id,
@@ -119,42 +197,46 @@ bool DisplayChangeObserver::GetResolutionForDisplayId(int64 display_id,
 }
 
 void DisplayChangeObserver::OnDisplayModeChanged(
-    const std::vector<OutputConfigurator::DisplayState>& outputs) {
+    const std::vector<DisplayConfigurator::DisplayState>& display_states) {
   std::vector<DisplayInfo> displays;
   std::set<int64> ids;
-  for (size_t i = 0; i < outputs.size(); ++i) {
-    const OutputConfigurator::DisplayState& output = outputs[i];
+  for (size_t i = 0; i < display_states.size(); ++i) {
+    const DisplayConfigurator::DisplayState& state = display_states[i];
 
-    if (output.display->type() == ui::OUTPUT_TYPE_INTERNAL &&
+    if (state.display->type() == ui::DISPLAY_CONNECTION_TYPE_INTERNAL &&
         gfx::Display::InternalDisplayId() == gfx::Display::kInvalidDisplayID) {
-      gfx::Display::SetInternalDisplayId(output.display->display_id());
+      gfx::Display::SetInternalDisplayId(state.display->display_id());
     }
 
-    const ui::DisplayMode* mode_info = output.display->current_mode();
+    const ui::DisplayMode* mode_info = state.display->current_mode();
     if (!mode_info)
       continue;
 
     float device_scale_factor = 1.0f;
-    if (!ui::IsXDisplaySizeBlackListed(
-            output.display->physical_size().width(),
-            output.display->physical_size().height()) &&
-        (kInchInMm * mode_info->size().width() /
-         output.display->physical_size().width()) > kHighDensityDPIThreshold) {
-      device_scale_factor = 2.0f;
+    if (state.display->type() == ui::DISPLAY_CONNECTION_TYPE_INTERNAL) {
+      if (!ui::IsDisplaySizeBlackListed(state.display->physical_size())) {
+        device_scale_factor =
+            FindDeviceScaleFactor((kInchInMm * mode_info->size().width() /
+                                   state.display->physical_size().width()));
+      }
+    } else {
+      DisplayMode mode;
+      if (Shell::GetInstance()->display_manager()->GetSelectedModeForDisplayId(
+              state.display->display_id(), &mode)) {
+        device_scale_factor = mode.device_scale_factor;
+      }
     }
-    gfx::Rect display_bounds(output.display->origin(), mode_info->size());
-
-    std::vector<DisplayMode> display_modes = GetDisplayModeList(output);
+    gfx::Rect display_bounds(state.display->origin(), mode_info->size());
 
     std::string name =
-        output.display->type() == ui::OUTPUT_TYPE_INTERNAL
-            l10n_util::GetStringUTF8(IDS_ASH_INTERNAL_DISPLAY_NAME) :
-              output.display->GetDisplayName();
+        state.display->type() == ui::DISPLAY_CONNECTION_TYPE_INTERNAL ?
+            l10n_util::GetStringUTF8(IDS_ASH_INTERNAL_DISPLAY_NAME) :
+            state.display->display_name();
     if (name.empty())
       name = l10n_util::GetStringUTF8(IDS_ASH_STATUS_TRAY_UNKNOWN_DISPLAY_NAME);
 
-    bool has_overscan = output.display->GetOverscanFlag();
-    int64 id = output.display->display_id();
+    bool has_overscan = state.display->has_overscan();
+    int64 id = state.display->display_id();
     ids.insert(id);
 
     displays.push_back(DisplayInfo(id, name, has_overscan));
@@ -162,26 +244,57 @@ void DisplayChangeObserver::OnDisplayModeChanged(
     new_info.set_device_scale_factor(device_scale_factor);
     new_info.SetBounds(display_bounds);
     new_info.set_native(true);
+    new_info.set_is_aspect_preserving_scaling(
+        state.display->is_aspect_preserving_scaling());
+
+    std::vector<DisplayMode> display_modes =
+        (state.display->type() == ui::DISPLAY_CONNECTION_TYPE_INTERNAL) ?
+        GetInternalDisplayModeList(new_info, state) :
+        GetExternalDisplayModeList(state);
     new_info.set_display_modes(display_modes);
-    new_info.set_touch_support(
-        output.touch_device_id == 0 ? gfx::Display::TOUCH_SUPPORT_UNAVAILABLE :
-                                      gfx::Display::TOUCH_SUPPORT_AVAILABLE);
+
     new_info.set_available_color_profiles(
-        Shell::GetInstance()->output_configurator()->
-        GetAvailableColorCalibrationProfiles(id));
+        Shell::GetInstance()
+            ->display_configurator()
+            ->GetAvailableColorCalibrationProfiles(id));
   }
 
+  AssociateTouchscreens(
+      &displays, ui::DeviceDataManager::GetInstance()->touchscreen_devices());
   // DisplayManager can be null during the boot.
   Shell::GetInstance()->display_manager()->OnNativeDisplaysChanged(displays);
+
+  // For the purposes of user activity detection, ignore synthetic mouse events
+  // that are triggered by screen resizes: http://crbug.com/360634
+  ::wm::UserActivityDetector* user_activity_detector =
+      ::wm::UserActivityDetector::Get();
+  if (user_activity_detector)
+    user_activity_detector->OnDisplayPowerChanging();
 }
 
 void DisplayChangeObserver::OnAppTerminating() {
 #if defined(USE_ASH)
   // Stop handling display configuration events once the shutdown
   // process starts. crbug.com/177014.
-  Shell::GetInstance()->output_configurator()->PrepareForExit();
+  Shell::GetInstance()->display_configurator()->PrepareForExit();
 #endif
 }
 
-}  // namespace internal
+// static
+float DisplayChangeObserver::FindDeviceScaleFactor(float dpi) {
+  for (size_t i = 0; i < arraysize(kThresholdTable); ++i) {
+    if (dpi > kThresholdTable[i].dpi)
+      return kThresholdTable[i].device_scale_factor;
+  }
+  return 1.0f;
+}
+
+void DisplayChangeObserver::OnTouchscreenDeviceConfigurationChanged() {
+  OnDisplayModeChanged(
+      Shell::GetInstance()->display_configurator()->cached_displays());
+}
+
+void DisplayChangeObserver::OnKeyboardDeviceConfigurationChanged() {
+}
+
 }  // namespace ash