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// Copyright (c) 2011 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 "ui/aura_shell/workspace/workspace.h"
#include "base/logging.h"
#include "ui/aura/window.h"
#include "ui/aura_shell/workspace/workspace_manager.h"
#include "ui/gfx/compositor/layer.h"
namespace {
// Horizontal margin between windows.
const int kWindowHorizontalMargin = 10;
}
namespace aura_shell {
Workspace::Workspace(WorkspaceManager* manager)
: workspace_manager_(manager) {
workspace_manager_->AddWorkspace(this);
}
Workspace::~Workspace() {
workspace_manager_->RemoveWorkspace(this);
}
void Workspace::SetBounds(const gfx::Rect& bounds) {
bool bounds_changed = bounds_ != bounds;
bounds_ = bounds;
if (bounds_changed)
Layout(NULL);
}
gfx::Rect Workspace::GetWorkAreaBounds() const {
return workspace_manager_->GetWorkAreaBounds(bounds_);
}
bool Workspace::AddWindowAfter(aura::Window* window, aura::Window* after) {
if (!CanAdd(window))
return false;
DCHECK(!Contains(window));
if (!after) { // insert at the end.
windows_.push_back(window);
} else {
DCHECK(Contains(after));
aura::Window::Windows::iterator i =
std::find(windows_.begin(), windows_.end(), after);
windows_.insert(++i, window);
}
Layout(window);
return true;
}
void Workspace::RemoveWindow(aura::Window* window) {
DCHECK(Contains(window));
windows_.erase(std::find(windows_.begin(), windows_.end(), window));
Layout(NULL);
}
bool Workspace::Contains(aura::Window* window) const {
return std::find(windows_.begin(), windows_.end(), window) != windows_.end();
}
void Workspace::Activate() {
workspace_manager_->SetActiveWorkspace(this);
}
void Workspace::Layout(aura::Window* no_animation) {
gfx::Rect work_area = workspace_manager_->GetWorkAreaBounds(bounds_);
int total_width = 0;
for (aura::Window::Windows::const_iterator i = windows_.begin();
i != windows_.end();
i++) {
if (total_width)
total_width += kWindowHorizontalMargin;
// TODO(oshima): use restored bounds.
total_width += (*i)->bounds().width();
}
if (total_width < work_area.width()) {
int dx = (work_area.width() - total_width) / 2;
for (aura::Window::Windows::iterator i = windows_.begin();
i != windows_.end();
i++) {
MoveWindowTo(*i,
gfx::Point(work_area.x() + dx, work_area.y()),
no_animation != *i);
dx += (*i)->bounds().width() + kWindowHorizontalMargin;
}
} else {
DCHECK_LT(windows_.size(), 3U);
// TODO(oshima): Figure out general algorithm to layout more than
// 2 windows.
MoveWindowTo(windows_[0], work_area.origin(), no_animation != windows_[0]);
if (windows_.size() == 2) {
MoveWindowTo(windows_[1],
gfx::Point(work_area.right() - windows_[1]->bounds().width(),
work_area.y()),
no_animation != windows_[1]);
}
}
}
int Workspace::GetIndexOf(aura::Window* window) const {
aura::Window::Windows::const_iterator i =
std::find(windows_.begin(), windows_.end(), window);
return i == windows_.end() ? -1 : i - windows_.begin();
}
bool Workspace::CanAdd(aura::Window* window) const {
// TODO(oshima): This should be based on available space and the
// size of the |window|.
NOTIMPLEMENTED();
return windows_.size() < 2;
}
void Workspace::MoveWindowTo(
aura::Window* window,
const gfx::Point& origin,
bool animate) {
if (window->show_state() == ui::SHOW_STATE_FULLSCREEN)
window->Fullscreen();
else if (window->show_state() == ui::SHOW_STATE_MAXIMIZED)
window->Maximize();
else {
gfx::Rect bounds = window->GetTargetBounds();
bounds.set_origin(origin);
if (animate)
window->layer()->SetAnimation(aura::Window::CreateDefaultAnimation());
window->SetBounds(bounds);
}
}
} // namespace aura_shell
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