Move DisplayLayoutStore from ash to ui.

ash/display/display_layout_store.cc

-// Copyright 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <stdio.h>
-
-#include "ash/common/ash_switches.h"
-#include "ash/display/display_layout_store.h"
-#include "ash/display/display_manager.h"
-#include "ash/display/display_util.h"
-#include "ash/shell.h"
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "ui/display/display.h"
-
-namespace ash {
-
-DisplayLayoutStore::DisplayLayoutStore()
-    : default_display_placement_(display::DisplayPlacement::RIGHT, 0) {
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-  if (command_line->HasSwitch(switches::kAshSecondaryDisplayLayout)) {
-    std::string value =
-        command_line->GetSwitchValueASCII(switches::kAshSecondaryDisplayLayout);
-    char layout;
-    int offset = 0;
-    if (sscanf(value.c_str(), "%c,%d", &layout, &offset) == 2) {
-      if (layout == 't')
-        default_display_placement_.position = display::DisplayPlacement::TOP;
-      else if (layout == 'b')
-        default_display_placement_.position = display::DisplayPlacement::BOTTOM;
-      else if (layout == 'r')
-        default_display_placement_.position = display::DisplayPlacement::RIGHT;
-      else if (layout == 'l')
-        default_display_placement_.position = display::DisplayPlacement::LEFT;
-      default_display_placement_.offset = offset;
-    }
-  }
-}
-
-DisplayLayoutStore::~DisplayLayoutStore() {}
-
-void DisplayLayoutStore::SetDefaultDisplayPlacement(
-    const display::DisplayPlacement& placement) {
-  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-  if (!command_line->HasSwitch(switches::kAshSecondaryDisplayLayout))
-    default_display_placement_ = placement;
-}
-
-void DisplayLayoutStore::RegisterLayoutForDisplayIdList(
-    const display::DisplayIdList& list,
-    std::unique_ptr<display::DisplayLayout> layout) {
-  // m50/51 dev/beta channel may have bad layout data saved in local state.
-  // TODO(oshima): Consider removing this after m53.
-  if (list.size() == 2 && layout->placement_list.size() > 1)
-    return;
-
-  // Do not overwrite the valid data with old invalid date.
-  if (layouts_.count(list) && !CompareDisplayIds(list[0], list[1]))
-    return;
-
-  // Old data may not have the display_id/parent_display_id.
-  // Guess these values based on the saved primary_id.
-  if (layout->placement_list.size() >= 1 &&
-      layout->placement_list[0].display_id ==
-          display::Display::kInvalidDisplayID) {
-    if (layout->primary_id == list[1]) {
-      layout->placement_list[0].display_id = list[0];
-      layout->placement_list[0].parent_display_id = list[1];
-    } else {
-      layout->placement_list[0].display_id = list[1];
-      layout->placement_list[0].parent_display_id = list[0];
-    }
-  }
-  DCHECK(display::DisplayLayout::Validate(list, *layout.get()))
-      << "ids=" << DisplayIdListToString(list)
-      << ", layout=" << layout->ToString();
-  layouts_[list] = std::move(layout);
-}
-
-const display::DisplayLayout& DisplayLayoutStore::GetRegisteredDisplayLayout(
-    const display::DisplayIdList& list) {
-  DCHECK_NE(1u, list.size());
-  const auto iter = layouts_.find(list);
-  const display::DisplayLayout* layout = iter != layouts_.end()
-                                             ? iter->second.get()
-                                             : CreateDefaultDisplayLayout(list);
-  DCHECK(display::DisplayLayout::Validate(list, *layout)) << layout->ToString();
-  DCHECK_NE(layout->primary_id, display::Display::kInvalidDisplayID);
-  return *layout;
-}
-
-void DisplayLayoutStore::UpdateMultiDisplayState(
-    const display::DisplayIdList& list,
-    bool mirrored,
-    bool default_unified) {
-  DCHECK(layouts_.find(list) != layouts_.end());
-  if (layouts_.find(list) == layouts_.end())
-    CreateDefaultDisplayLayout(list);
-
-  layouts_[list]->mirrored = mirrored;
-  layouts_[list]->default_unified = default_unified;
-}
-
-display::DisplayLayout* DisplayLayoutStore::CreateDefaultDisplayLayout(
-    const display::DisplayIdList& list) {
-  std::unique_ptr<display::DisplayLayout> layout(new display::DisplayLayout);
-  // The first display is the primary by default.
-  layout->primary_id = list[0];
-  layout->placement_list.clear();
-  for (size_t i = 0; i < list.size() - 1; i++) {
-    display::DisplayPlacement placement(default_display_placement_);
-    placement.display_id = list[i + 1];
-    placement.parent_display_id = list[i];
-    layout->placement_list.push_back(placement);
-  }
-  layouts_[list] = std::move(layout);
-  auto iter = layouts_.find(list);
-  return iter->second.get();
-}
-
-}  // namespace ash