contents_layout_manager.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/views/frame/contents_layout_manager.h"
6
7#include "ui/views/view.h"
8
9ContentsLayoutManager::ContentsLayoutManager(
10    views::View* devtools_view,
11    views::View* contents_view)
12    : devtools_view_(devtools_view),
13      contents_view_(contents_view),
14      host_(NULL),
15      active_top_margin_(0) {
16}
17
18ContentsLayoutManager::~ContentsLayoutManager() {
19}
20
21void ContentsLayoutManager::SetContentsResizingStrategy(
22    const DevToolsContentsResizingStrategy& strategy) {
23  if (strategy_.Equals(strategy))
24    return;
25
26  strategy_.CopyFrom(strategy);
27  if (host_)
28    host_->InvalidateLayout();
29}
30
31void ContentsLayoutManager::SetActiveTopMargin(int margin) {
32  if (active_top_margin_ == margin)
33    return;
34
35  active_top_margin_ = margin;
36  if (host_)
37    host_->InvalidateLayout();
38}
39
40void ContentsLayoutManager::Layout(views::View* contents_container) {
41  DCHECK(host_ == contents_container);
42
43  int top = active_top_margin_;
44  int height = std::max(0, contents_container->height() - top);
45  int width = contents_container->width();
46
47  gfx::Size container_size(width, height);
48  gfx::Rect old_devtools_bounds(devtools_view_->bounds());
49  gfx::Rect old_contents_bounds(contents_view_->bounds());
50  gfx::Rect new_devtools_bounds;
51  gfx::Rect new_contents_bounds;
52
53  old_devtools_bounds.Offset(0, -top);
54  old_contents_bounds.Offset(0, -top);
55  ApplyDevToolsContentsResizingStrategy(strategy_, container_size,
56      old_devtools_bounds, old_contents_bounds,
57      &new_devtools_bounds, &new_contents_bounds);
58  new_devtools_bounds.Offset(0, top);
59  new_contents_bounds.Offset(0, top);
60
61  devtools_view_->SetBoundsRect(new_devtools_bounds);
62  contents_view_->SetBoundsRect(new_contents_bounds);
63}
64
65gfx::Size ContentsLayoutManager::GetPreferredSize(views::View* host) {
66  return gfx::Size();
67}
68
69void ContentsLayoutManager::Installed(views::View* host) {
70  DCHECK(!host_);
71  host_ = host;
72}
73
74void ContentsLayoutManager::Uninstalled(views::View* host) {
75  DCHECK(host_ == host);
76  host_ = NULL;
77}
78