chrome/browser/ui/cocoa/single_web_contents_dialog_manager_cocoa.mm

   1 // Copyright 2015 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 #import "chrome/browser/ui/cocoa/single_web_contents_dialog_manager_cocoa.h"
   6
   7 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_custom_sheet.h"
   8 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h"
   9 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_sheet_controller.h"
  10 #include "components/web_modal/web_contents_modal_dialog_host.h"
  11 #include "components/web_modal/web_contents_modal_dialog_manager.h"
  12 #include "content/public/browser/web_contents.h"
  13
  14 SingleWebContentsDialogManagerCocoa::SingleWebContentsDialogManagerCocoa(
  15     ConstrainedWindowMac* client,
  16     id<ConstrainedWindowSheet> sheet,
  17     web_modal::SingleWebContentsDialogManagerDelegate* delegate)
  18     : client_(client),
  19       sheet_([sheet retain]),
  20       delegate_(delegate),
  21       host_(nullptr),
  22       shown_(false) {
  23   if (client)
  24     client->set_manager(this);
  25 }
  26
  27 SingleWebContentsDialogManagerCocoa::~SingleWebContentsDialogManagerCocoa() {
  28 }
  29
  30 void SingleWebContentsDialogManagerCocoa::Show() {
  31   if (shown_)
  32     return;
  33
  34   DCHECK(host_);
  35   NSView* parent_view = host_->GetHostView();
  36   // Note that simply [parent_view window] for an inactive tab is nil. However,
  37   // the following should always be non-nil for all WebContents containers.
  38   NSWindow* parent_window =
  39       delegate_->GetWebContents()->GetTopLevelNativeWindow();
  40
  41   shown_ = true;
  42   [[ConstrainedWindowSheetController controllerForParentWindow:parent_window]
  43       showSheet:sheet_ forParentView:parent_view];
  44 }
  45
  46 void SingleWebContentsDialogManagerCocoa::Hide() {
  47 }
  48
  49 void SingleWebContentsDialogManagerCocoa::Close() {
  50   [[ConstrainedWindowSheetController controllerForSheet:sheet_]
  51       closeSheet:sheet_];
  52   if (client_) {
  53     client_->set_manager(nullptr);
  54     client_->OnDialogClosing();  // |client_| might delete itself here.
  55     client_ = nullptr;
  56   }
  57   delegate_->WillClose(dialog());
  58 }
  59
  60 void SingleWebContentsDialogManagerCocoa::Focus() {
  61 }
  62
  63 void SingleWebContentsDialogManagerCocoa::Pulse() {
  64   [[ConstrainedWindowSheetController controllerForSheet:sheet_]
  65       pulseSheet:sheet_];
  66 }
  67
  68 void SingleWebContentsDialogManagerCocoa::HostChanged(
  69     web_modal::WebContentsModalDialogHost* new_host) {
  70   // No need to observe the host. For Cocoa, the constrained window controller
  71   // will reposition the dialog when necessary. The host can also never change.
  72   // Tabs showing a dialog can not be dragged off a Cocoa browser window.
  73   // However, closing a tab with a dialog open will set the host back to null.
  74   DCHECK_NE(!!host_, !!new_host);
  75   host_ = new_host;
  76 }
  77
  78 gfx::NativeWindow SingleWebContentsDialogManagerCocoa::dialog() {
  79   return [sheet_ sheetWindow];
  80 }