chrome/browser/ui/views/frame/contents_layout_manager.cc

   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
   9 ContentsLayoutManager::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
  18 ContentsLayoutManager::~ContentsLayoutManager() {
  19 }
  20
  21 void ContentsLayoutManager::SetContentsViewInsets(const gfx::Insets& insets) {
  22   if (insets_ == insets)
  23     return;
  24
  25   insets_ = insets;
  26   if (host_)
  27     host_->InvalidateLayout();
  28 }
  29
  30 void ContentsLayoutManager::SetActiveTopMargin(int margin) {
  31   if (active_top_margin_ == margin)
  32     return;
  33
  34   active_top_margin_ = margin;
  35   if (host_)
  36     host_->InvalidateLayout();
  37 }
  38
  39 void ContentsLayoutManager::Layout(views::View* contents_container) {
  40   DCHECK(host_ == contents_container);
  41
  42   int top = active_top_margin_;
  43   int height = std::max(0, contents_container->height() - top);
  44   int width = contents_container->width();
  45   devtools_view_->SetBounds(0, top, width, height);
  46
  47   int contents_width = std::max(0, width - insets_.width());
  48   int contents_height = std::max(0, height - insets_.height());
  49   contents_view_->SetBounds(
  50       std::min(insets_.left(), width),
  51       top + std::min(insets_.top(), height),
  52       contents_width,
  53       contents_height);
  54 }
  55
  56 gfx::Size ContentsLayoutManager::GetPreferredSize(views::View* host) {
  57   return gfx::Size();
  58 }
  59
  60 void ContentsLayoutManager::Installed(views::View* host) {
  61   DCHECK(!host_);
  62   host_ = host;
  63 }
  64
  65 void ContentsLayoutManager::Uninstalled(views::View* host) {
  66   DCHECK(host_ == host);
  67   host_ = NULL;
  68 }