1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82
   83
   84
   85
   86
   87
   88
   89
   90
   91
   92
   93
   94
   95
   96
   97
   98
   99
  100
  101
  102
  103
  104
  105
  106
  107
  108
  109
  110
  111
  112
  113
  114
  115
  116
  117
  118
  119
  120
  121
  122
  123
  124
  125
  126
  127
  128
  129
  130
  131
  132
  133
  134


content / browser / renderer_host / popup_menu_helper_mac.mm [blame]

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/renderer_host/popup_menu_helper_mac.h"

#include "base/numerics/safe_conversions.h"
#import "content/app_shim_remote_cocoa/render_widget_host_view_cocoa.h"
#include "content/browser/permissions/permission_controller_impl.h"
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/renderer_host/frame_tree_node.h"
#include "content/browser/renderer_host/render_frame_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_mac.h"
#include "content/public/browser/web_contents.h"
#import "ui/base/cocoa/base_view.h"

namespace content {

namespace {

bool g_allow_showing_popup_menus = true;

}  // namespace

PopupMenuHelper::PopupMenuHelper(
    Delegate* delegate,
    RenderFrameHost* render_frame_host,
    mojo::PendingRemote<blink::mojom::PopupMenuClient> popup_client)
    : delegate_(delegate),
      render_frame_host_(
          static_cast<RenderFrameHostImpl*>(render_frame_host)->GetWeakPtr()),
      popup_client_(std::move(popup_client)) {
  RenderWidgetHost* widget_host =
      render_frame_host->GetRenderViewHost()->GetWidget();
  observation_.Observe(widget_host);

  popup_client_.set_disconnect_handler(
      base::BindOnce(&PopupMenuHelper::Hide, weak_ptr_factory_.GetWeakPtr()));
}

PopupMenuHelper::~PopupMenuHelper() {
  Hide();
}

void PopupMenuHelper::ShowPopupMenu(
    const gfx::Rect& bounds,
    int item_height,
    double item_font_size,
    int selected_item,
    std::vector<blink::mojom::MenuItemPtr> items,
    bool right_aligned,
    bool allow_multiple_selection) {
  // Only single selection list boxes show a popup on Mac.
  DCHECK(!allow_multiple_selection);
  if (!g_allow_showing_popup_menus)
    return;

  RenderWidgetHostViewMac* rwhvm = GetRenderWidgetHostView();
  auto* web_contents = rwhvm->GetWebContents();

  // Convert element_bounds to be in screen.
  gfx::Rect client_area = web_contents->GetContainerBounds();
  gfx::Rect bounds_in_screen = bounds + client_area.OffsetFromOrigin();

  // The new popup menu would overlap the permission prompt, which could lead to
  // users making decisions based on incorrect information. We should close the
  // popup if it intersects with the permission prompt.
  auto permission_exclusion_area_bounds =
      PermissionControllerImpl::FromBrowserContext(
          web_contents->GetBrowserContext())
          ->GetExclusionAreaBoundsInScreen(web_contents);
  if (permission_exclusion_area_bounds &&
      permission_exclusion_area_bounds->Intersects(bounds_in_screen)) {
    popup_client_->DidCancel();
    delegate_->OnMenuClosed();  // May delete |this|.
    return;
  }

  remote_runner_.reset();
  rwhvm->GetNSView()->DisplayPopupMenu(
      remote_cocoa::mojom::PopupMenu::New(
          std::move(items), bounds, item_font_size, right_aligned,
          selected_item, remote_runner_.BindNewPipeAndPassReceiver()),
      base::BindOnce(&PopupMenuHelper::PopupMenuClosed,
                     weak_ptr_factory_.GetWeakPtr()));
}

void PopupMenuHelper::Hide() {
  if (remote_runner_) {
    remote_runner_->Hide();
  }
  popup_was_hidden_ = true;
  popup_client_.reset();
}

// static
void PopupMenuHelper::DontShowPopupMenuForTesting() {
  g_allow_showing_popup_menus = false;
}

RenderWidgetHostViewMac* PopupMenuHelper::GetRenderWidgetHostView() const {
  return static_cast<RenderWidgetHostViewMac*>(
      render_frame_host_->GetOutermostMainFrameOrEmbedder()->GetView());
}

void PopupMenuHelper::RenderWidgetHostVisibilityChanged(
    RenderWidgetHost* widget_host,
    bool became_visible) {
  if (!became_visible)
    Hide();
}

void PopupMenuHelper::RenderWidgetHostDestroyed(RenderWidgetHost* widget_host) {
  DCHECK(observation_.IsObservingSource(widget_host));
  observation_.Reset();
}

void PopupMenuHelper::PopupMenuClosed(std::optional<uint32_t> selected_item) {
  // The RenderFrameHost may be deleted while running the menu, or it may have
  // requested the close. Don't notify in these cases.
  if (popup_client_ && !popup_was_hidden_) {
    if (selected_item.has_value()) {
      popup_client_->DidAcceptIndices(
          {base::saturated_cast<int32_t>(*selected_item)});
    } else {
      popup_client_->DidCancel();
    }
  }

  delegate_->OnMenuClosed();  // May delete |this|.
}

}  // namespace content