Adding new general bubble error message consisting of icon, message and caption. Using this message…

ash/popup_message.cc

+// Copyright (c) 2013 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 "ash/popup_message.h"
+
+#include "ash/wm/window_animations.h"
+#include "grit/ash_resources.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/insets.h"
+#include "ui/views/bubble/bubble_delegate.h"
+#include "ui/views/bubble/bubble_frame_view.h"
+#include "ui/views/controls/image_view.h"
+#include "ui/views/controls/label.h"
+#include "ui/views/layout/box_layout.h"
+#include "ui/views/widget/widget.h"
+
+namespace ash {
+namespace {
+const int kMessageTopBottomMargin = 10;
+const int kMessageLeftRightMargin = 10;
+const int kMessageAppearanceDelayMs = 200;
+const int kMessageMinHeight = 29 - 2 * kMessageTopBottomMargin;
+const SkColor kMessageTextColor = SkColorSetRGB(0x22, 0x22, 0x22);
+
+// The maximum width of the Message bubble.  Borrowed the value from
+// ash/message/message_controller.cc
+const int kMessageMaxWidth = 250;
+
+// The offset for the Message bubble - making sure that the bubble is flush
+// with the shelf. The offset includes the arrow size in pixels as well as
+// the activation bar and other spacing elements.
+const int kArrowOffsetLeftRight = 11;
+const int kArrowOffsetTopBottom = 7;
+
+// The number of pixels between the icon and the text.
+const int kHorizontalPopupPaddingBetweenItems = 10;
+
+// The number of pixels between the text items.
+const int kVerticalPopupPaddingBetweenItems = 10;
+}  // namespace
+
+// The implementation of Message of the launcher.
+class PopupMessage::MessageBubble : public views::BubbleDelegateView {
+ public:
+  MessageBubble(const base::string16& caption,
+                const base::string16& message,
+                IconType message_type,
+                views::View* anchor,
+                views::BubbleBorder::Arrow arrow_orientation,
+                const gfx::Size& size_override,
+                int arrow_offset);
+
+  void Close();
+
+ private:
+  // views::View overrides:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+
+  // Each component (width/height) can force a size override for that component
+  // if not 0.
+  gfx::Size size_override_;
+
+  DISALLOW_COPY_AND_ASSIGN(MessageBubble);
+};
+
+PopupMessage::MessageBubble::MessageBubble(const base::string16& caption,
+                                           const base::string16& message,
+                                           IconType message_type,
+                                           views::View* anchor,
+                                           views::BubbleBorder::Arrow arrow,
+                                           const gfx::Size& size_override,
+                                           int arrow_offset)
+    : views::BubbleDelegateView(anchor, arrow),
+      size_override_(size_override) {
+  gfx::Insets insets = gfx::Insets(kArrowOffsetTopBottom,
+                                   kArrowOffsetLeftRight,
+                                   kArrowOffsetTopBottom,
+                                   kArrowOffsetLeftRight);
+  // An anchor can have an asymmetrical border for spacing reasons. Adjust the
+  // anchor location for this.
+  if (anchor->border())
+    insets += anchor->border()->GetInsets();
+
+  set_anchor_view_insets(insets);
+  set_close_on_esc(false);
+  set_close_on_deactivate(false);
+  set_use_focusless(true);
+  set_accept_events(false);
+
+  set_margins(gfx::Insets(kMessageTopBottomMargin, kMessageLeftRightMargin,
+                          kMessageTopBottomMargin, kMessageLeftRightMargin));
+  set_shadow(views::BubbleBorder::SMALL_SHADOW);
+
+  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
+  SetLayoutManager(new views::BoxLayout(views::BoxLayout::kHorizontal, 0, 0,
+                                        kHorizontalPopupPaddingBetweenItems));
+
+  // Here is the layout:
+  //         arrow_offset (if not 0)
+  //       |-------------|
+  //       |             ^
+  //       +-------------------------------------------------+
+  //      -|                                                 |-
+  //  icon |  [!]  Caption in bold which can be multi line   | caption_label
+  //      -|                                                 |-
+  //       |       Message text which can be multi line      | message_label
+  //       |       as well.                                  |
+  //       |                                                 |-
+  //       +-------------------------------------------------+
+  //             |------------details container--------------|
+  // Note that the icon, caption and massage are optional.
+
+  // Add the icon to the first column (if there is one).
+  if (message_type != ICON_NONE) {
+    views::ImageView* icon = new views::ImageView();
+    icon->SetImage(
+        bundle.GetImageNamed(IDR_AURA_WARNING_ICON).ToImageSkia());
+    icon->SetVerticalAlignment(views::ImageView::LEADING);
+    AddChildView(icon);
+  }
+
+  // Create a container for the text items and use it as second column.
+  views::View* details = new views::View();
+  AddChildView(details);
+  details->SetLayoutManager(new views::BoxLayout(
+      views::BoxLayout::kVertical, 0, 0, kVerticalPopupPaddingBetweenItems));
+
+  // The caption label.
+  if (!caption.empty()) {
+    views::Label* caption_label = new views::Label(caption);
+    caption_label->SetMultiLine(true);
+    caption_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+    caption_label->SetFont(bundle.GetFont(ui::ResourceBundle::BoldFont));
+    caption_label->SetEnabledColor(kMessageTextColor);
+    details->AddChildView(caption_label);
+  }
+
+  // The message label.
+  if (!message.empty()) {
+    views::Label* message_label = new views::Label(message);
+    message_label->SetMultiLine(true);
+    message_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
+    message_label->SetEnabledColor(kMessageTextColor);
+    details->AddChildView(message_label);
+  }
+  views::BubbleDelegateView::CreateBubble(this);
+
+  // Change the arrow offset if needed.
+  if (arrow_offset) {
+    // With the creation of the bubble, the bubble got already placed (and
+    // possibly re-oriented to fit on the screen). Since it is not possible to
+    // set the arrow offset before the creation, we need to set the offset,
+    // and the orientation variables again and force a re-placement.
+    GetBubbleFrameView()->bubble_border()->set_arrow_offset(arrow_offset);
+    GetBubbleFrameView()->bubble_border()->set_arrow(arrow);
+    SetAlignment(views::BubbleBorder::ALIGN_ARROW_TO_MID_ANCHOR);
+  }
+}
+
+void PopupMessage::MessageBubble::Close() {
+  if (GetWidget())
+    GetWidget()->Close();
+}
+
+gfx::Size PopupMessage::MessageBubble::GetPreferredSize() {
+  gfx::Size pref_size = views::BubbleDelegateView::GetPreferredSize();
+  // Override the size with either the provided size or adjust it to not
+  // violate our minimum / maximum sizes.
+  if (size_override_.height())
+    pref_size.set_height(size_override_.height());
+  else if (pref_size.height() < kMessageMinHeight)
+    pref_size.set_height(kMessageMinHeight);
+
+  if (size_override_.width())
+    pref_size.set_width(size_override_.width());
+  else if (pref_size.width() > kMessageMaxWidth)
+    pref_size.set_width(kMessageMaxWidth);
+
+  return pref_size;
+}
+
+PopupMessage::PopupMessage(const base::string16& caption,
+                           const base::string16& message,
+                           IconType message_type,
+                           views::View* anchor,
+                           views::BubbleBorder::Arrow arrow,
+                           const gfx::Size& size_override,
+                           int arrow_offset)
+    : view_(NULL) {
+  view_ = new MessageBubble(
+      caption, message, message_type, anchor, arrow, size_override,
+      arrow_offset);
+  widget_ = view_->GetWidget();
+
+  gfx::NativeView native_view = widget_->GetNativeView();
+  views::corewm::SetWindowVisibilityAnimationType(
+      native_view, views::corewm::WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL);
+  views::corewm::SetWindowVisibilityAnimationTransition(
+      native_view, views::corewm::ANIMATE_HIDE);
+  view_->GetWidget()->Show();
+}
+
+PopupMessage::~PopupMessage() {
+  CancelHidingAnimation();
+  Close();
+}
+
+void PopupMessage::Close() {
+  if (view_) {
+    view_->Close();
+    view_ = NULL;
+    widget_ = NULL;
+  }
+}
+
+void PopupMessage::CancelHidingAnimation() {
+  if (!widget_ || !widget_->GetNativeView())
+    return;
+
+  gfx::NativeView native_view = widget_->GetNativeView();
+  views::corewm::SetWindowVisibilityAnimationTransition(
+      native_view, views::corewm::ANIMATE_NONE);
+}
+
+}  // namespace ash