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// 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/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/gfx/display.h"
namespace ash {
DisplayLayoutStore::DisplayLayoutStore()
: default_display_placement_(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 = DisplayPlacement::TOP;
else if (layout == 'b')
default_display_placement_.position = DisplayPlacement::BOTTOM;
else if (layout == 'r')
default_display_placement_.position = DisplayPlacement::RIGHT;
else if (layout == 'l')
default_display_placement_.position = DisplayPlacement::LEFT;
default_display_placement_.offset = offset;
}
}
}
DisplayLayoutStore::~DisplayLayoutStore() {
}
void DisplayLayoutStore::SetDefaultDisplayPlacement(
const DisplayPlacement& placement) {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kAshSecondaryDisplayLayout))
default_display_placement_ = placement;
}
void DisplayLayoutStore::RegisterLayoutForDisplayIdList(
const DisplayIdList& list,
scoped_ptr<DisplayLayout> layout) {
// A dev/beta channel may have a bad layout data saved in local state.
// TODO(oshima): Consider removing this a coulpe of milestones later.
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 == gfx::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(DisplayLayout::Validate(list, *layout.get()))
<< "ids=" << DisplayIdListToString(list)
<< ", layout=" << layout->ToString();
layouts_[list] = std::move(layout);
}
const DisplayLayout& DisplayLayoutStore::GetRegisteredDisplayLayout(
const DisplayIdList& list) {
DCHECK_NE(1u, list.size());
const auto iter = layouts_.find(list);
const DisplayLayout* layout = iter != layouts_.end()
? iter->second.get()
: CreateDefaultDisplayLayout(list);
DCHECK(DisplayLayout::Validate(list, *layout)) << layout->ToString();
DCHECK_NE(layout->primary_id, gfx::Display::kInvalidDisplayID);
return *layout;
}
void DisplayLayoutStore::UpdateMultiDisplayState(const 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;
}
DisplayLayout* DisplayLayoutStore::CreateDefaultDisplayLayout(
const DisplayIdList& list) {
scoped_ptr<DisplayLayout> layout(new 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++) {
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
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