Desktop Capture Picker New UI: Split File

chrome/browser/ui/views/desktop_capture/desktop_media_source_view.cc

+// Copyright 2016 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 "chrome/browser/ui/views/desktop_capture/desktop_media_source_view.h"
+
+#include "chrome/browser/media/desktop_media_list.h"
+#include "chrome/browser/ui/views/desktop_capture/desktop_media_list_view.h"
+#include "chrome/browser/ui/views/desktop_capture/desktop_media_picker_views.h"
+#include "ui/gfx/canvas.h"
+#include "ui/native_theme/native_theme.h"
+#include "ui/views/background.h"
+#include "ui/views/controls/image_view.h"
+#include "ui/views/controls/label.h"
+
+using content::DesktopMediaID;
+
+DesktopMediaSourceView::DesktopMediaSourceView(DesktopMediaListView* parent,
+                                               DesktopMediaID source_id)
+    : parent_(parent),
+      source_id_(source_id),
+      image_view_(new views::ImageView()),
+      label_(new views::Label()),
+      selected_(false) {
+  AddChildView(image_view_);
+  AddChildView(label_);
+  SetFocusBehavior(FocusBehavior::ALWAYS);
+}
+
+DesktopMediaSourceView::~DesktopMediaSourceView() {}
+
+const char* DesktopMediaSourceView::kDesktopMediaSourceViewClassName =
+    "DesktopMediaPicker_DesktopMediaSourceView";
+
+void DesktopMediaSourceView::SetName(const base::string16& name) {
+  label_->SetText(name);
+}
+
+void DesktopMediaSourceView::SetThumbnail(const gfx::ImageSkia& thumbnail) {
+  image_view_->SetImage(thumbnail);
+}
+
+void DesktopMediaSourceView::SetSelected(bool selected) {
+  if (selected == selected_)
+    return;
+  selected_ = selected;
+
+  if (selected) {
+    // Unselect all other sources.
+    Views neighbours;
+    parent()->GetViewsInGroup(GetGroup(), &neighbours);
+    for (Views::iterator i(neighbours.begin()); i != neighbours.end(); ++i) {
+      if (*i != this) {
+        DCHECK_EQ((*i)->GetClassName(),
+                  DesktopMediaSourceView::kDesktopMediaSourceViewClassName);
+        DesktopMediaSourceView* source_view =
+            static_cast<DesktopMediaSourceView*>(*i);
+        source_view->SetSelected(false);
+      }
+    }
+
+    const SkColor bg_color = GetNativeTheme()->GetSystemColor(
+        ui::NativeTheme::kColorId_FocusedMenuItemBackgroundColor);
+    set_background(views::Background::CreateSolidBackground(bg_color));
+
+    parent_->OnSelectionChanged();
+  } else {
+    set_background(NULL);
+  }
+
+  SchedulePaint();
+}
+
+const char* DesktopMediaSourceView::GetClassName() const {
+  // return nullptr;

[msw, 2016/05/16 22:49:25]

Remove this

[qiangchen, 2016/05/16 23:49:42]

Done.

Ah, this is my debug code. I am not sure why compiler does not allow me to
initialize a "const char*" in declaration.

+  return DesktopMediaSourceView::kDesktopMediaSourceViewClassName;
+}
+
+void DesktopMediaSourceView::Layout() {
+  image_view_->SetBounds(DesktopMediaPickerDialogView::kThumbnailMargin,
+                         DesktopMediaPickerDialogView::kThumbnailMargin,
+                         DesktopMediaPickerDialogView::kThumbnailWidth,
+                         DesktopMediaPickerDialogView::kThumbnailHeight);
+  label_->SetBounds(DesktopMediaPickerDialogView::kThumbnailMargin,
+                    DesktopMediaPickerDialogView::kThumbnailHeight +
+                        DesktopMediaPickerDialogView::kThumbnailMargin,
+                    DesktopMediaPickerDialogView::kThumbnailWidth,
+                    DesktopMediaPickerDialogView::kLabelHeight);
+}
+
+views::View* DesktopMediaSourceView::GetSelectedViewForGroup(int group) {
+  Views neighbours;
+  parent()->GetViewsInGroup(group, &neighbours);
+  if (neighbours.empty())
+    return NULL;
+
+  for (Views::iterator i(neighbours.begin()); i != neighbours.end(); ++i) {
+    DCHECK_EQ((*i)->GetClassName(),
+              DesktopMediaSourceView::kDesktopMediaSourceViewClassName);
+    DesktopMediaSourceView* source_view =
+        static_cast<DesktopMediaSourceView*>(*i);
+    if (source_view->selected_)
+      return source_view;
+  }
+  return NULL;
+}
+
+bool DesktopMediaSourceView::IsGroupFocusTraversable() const {
+  return false;
+}
+
+void DesktopMediaSourceView::OnPaint(gfx::Canvas* canvas) {
+  View::OnPaint(canvas);
+  if (HasFocus()) {
+    gfx::Rect bounds(GetLocalBounds());
+    bounds.Inset(DesktopMediaPickerDialogView::kThumbnailMargin / 2,
+                 DesktopMediaPickerDialogView::kThumbnailMargin / 2);
+    canvas->DrawFocusRect(bounds);
+  }
+}
+
+void DesktopMediaSourceView::OnFocus() {
+  View::OnFocus();
+  SetSelected(true);
+  ScrollRectToVisible(gfx::Rect(size()));
+  // We paint differently when focused.
+  SchedulePaint();
+}
+
+void DesktopMediaSourceView::OnBlur() {
+  View::OnBlur();
+  // We paint differently when focused.
+  SchedulePaint();
+}
+
+bool DesktopMediaSourceView::OnMousePressed(const ui::MouseEvent& event) {
+  if (event.GetClickCount() == 1) {
+    RequestFocus();
+  } else if (event.GetClickCount() == 2) {
+    RequestFocus();
+    parent_->OnDoubleClick();
+  }
+  return true;
+}
+
+void DesktopMediaSourceView::OnGestureEvent(ui::GestureEvent* event) {
+  if (event->type() == ui::ET_GESTURE_TAP &&
+      event->details().tap_count() == 2) {
+    RequestFocus();
+    parent_->OnDoubleClick();
+    event->SetHandled();
+    return;
+  }
+
+  // Detect tap gesture using ET_GESTURE_TAP_DOWN so the view also gets focused
+  // on the long tap (when the tap gesture starts).
+  if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
+    RequestFocus();
+    event->SetHandled();
+  }
+}