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// Copyright (c) 2012 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 "chrome/browser/ui/panels/detached_panel_strip.h"
#include <algorithm>
#include "base/logging.h"
#include "chrome/browser/ui/panels/panel_drag_controller.h"
#include "chrome/browser/ui/panels/panel_manager.h"
DetachedPanelStrip::DetachedPanelStrip(PanelManager* panel_manager)
: PanelStrip(PanelStrip::DETACHED),
panel_manager_(panel_manager) {
}
DetachedPanelStrip::~DetachedPanelStrip() {
DCHECK(panels_.empty());
}
void DetachedPanelStrip::SetDisplayArea(const gfx::Rect& display_area) {
if (display_area_ == display_area)
return;
display_area_ = display_area;
if (panels_.empty())
return;
RefreshLayout();
}
void DetachedPanelStrip::RefreshLayout() {
// Nothing needds to be done here: detached panels always stay
// where the user dragged them.
}
void DetachedPanelStrip::AddPanel(Panel* panel,
PositioningMask positioning_mask) {
// positioning_mask is ignored since the detached panel is free-floating.
DCHECK_NE(this, panel->panel_strip());
panel->SetPanelStrip(this);
panels_.insert(panel);
}
void DetachedPanelStrip::RemovePanel(Panel* panel) {
DCHECK_EQ(this, panel->panel_strip());
panel->SetPanelStrip(NULL);
panels_.erase(panel);
}
void DetachedPanelStrip::CloseAll() {
// Make a copy as closing panels can modify the iterator.
Panels panels_copy = panels_;
for (Panels::const_iterator iter = panels_copy.begin();
iter != panels_copy.end(); ++iter)
(*iter)->Close();
}
void DetachedPanelStrip::OnPanelAttentionStateChanged(Panel* panel) {
DCHECK_EQ(this, panel->panel_strip());
// Nothing to do.
}
void DetachedPanelStrip::OnPanelTitlebarClicked(Panel* panel,
panel::ClickModifier modifier) {
DCHECK_EQ(this, panel->panel_strip());
// Click on detached panel titlebars does not do anything.
}
void DetachedPanelStrip::ResizePanelWindow(
Panel* panel,
const gfx::Size& preferred_window_size) {
// We should get this call only of we have the panel.
DCHECK_EQ(this, panel->panel_strip());
// Make sure the new size does not violate panel's size restrictions.
gfx::Size new_size(preferred_window_size.width(),
preferred_window_size.height());
panel->ClampSize(&new_size);
// Update restored size.
if (new_size != panel->restored_size())
panel->set_restored_size(new_size);
gfx::Rect bounds = panel->GetBounds();
// When we resize a detached panel, its origin does not move.
// So we set height and width only.
bounds.set_size(new_size);
if (bounds != panel->GetBounds())
panel->SetPanelBounds(bounds);
}
void DetachedPanelStrip::ActivatePanel(Panel* panel) {
DCHECK_EQ(this, panel->panel_strip());
// No change in panel's appearance.
}
void DetachedPanelStrip::MinimizePanel(Panel* panel) {
DCHECK_EQ(this, panel->panel_strip());
// Detached panels do not minimize. However, extensions may call this API
// regardless of which strip the panel is in. So we just quietly return.
}
void DetachedPanelStrip::RestorePanel(Panel* panel) {
DCHECK_EQ(this, panel->panel_strip());
// Detached panels do not minimize. However, extensions may call this API
// regardless of which strip the panel is in. So we just quietly return.
}
bool DetachedPanelStrip::IsPanelMinimized(const Panel* panel) const {
DCHECK_EQ(this, panel->panel_strip());
// Detached panels do not minimize.
return false;
}
bool DetachedPanelStrip::CanShowPanelAsActive(const Panel* panel) const {
// All detached panels can be shown as active.
return true;
}
void DetachedPanelStrip::SavePanelPlacement(Panel* panel) {
DCHECK(!saved_panel_placement_.panel);
saved_panel_placement_.panel = panel;
saved_panel_placement_.position = panel->GetBounds().origin();
}
void DetachedPanelStrip::RestorePanelToSavedPlacement() {
DCHECK(saved_panel_placement_.panel);
gfx::Rect new_bounds(saved_panel_placement_.panel->GetBounds());
new_bounds.set_origin(saved_panel_placement_.position);
saved_panel_placement_.panel->SetPanelBounds(new_bounds);
DiscardSavedPanelPlacement();
}
void DetachedPanelStrip::DiscardSavedPanelPlacement() {
DCHECK(saved_panel_placement_.panel);
saved_panel_placement_.panel = NULL;
}
bool DetachedPanelStrip::CanDragPanel(const Panel* panel) const {
// All detached panels are draggable.
return true;
}
void DetachedPanelStrip::StartDraggingPanelWithinStrip(Panel* panel) {
DCHECK(HasPanel(panel));
}
void DetachedPanelStrip::DragPanelWithinStrip(Panel* panel,
int delta_x,
int delta_y) {
gfx::Rect new_bounds(panel->GetBounds());
new_bounds.Offset(delta_x, delta_y);
panel->SetPanelBoundsInstantly(new_bounds);
}
void DetachedPanelStrip::EndDraggingPanelWithinStrip(Panel* panel,
bool aborted) {
}
bool DetachedPanelStrip::CanResizePanel(const Panel* panel) const {
return true;
}
void DetachedPanelStrip::SetPanelBounds(Panel* panel,
const gfx::Rect& new_bounds) {
DCHECK_EQ(this, panel->panel_strip());
panel->set_restored_size(new_bounds.size());
panel->SetPanelBoundsInstantly(new_bounds);
}
bool DetachedPanelStrip::HasPanel(Panel* panel) const {
return panels_.find(panel) != panels_.end();
}
void DetachedPanelStrip::UpdatePanelOnStripChange(Panel* panel) {
panel->set_attention_mode(
static_cast<Panel::AttentionMode>(Panel::USE_PANEL_ATTENTION |
Panel::USE_SYSTEM_ATTENTION));
panel->SetAlwaysOnTop(false);
panel->EnableResizeByMouse(true);
}
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