app_list: Add search box and search result view for v2.

ui/app_list/search_result_view.cc

+// Copyright (c) 2012 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 "ui/app_list/search_result_view.h"
+
+#include "ui/app_list/search_result.h"
+#include "ui/gfx/canvas.h"
+#include "ui/gfx/font.h"
+#include "ui/gfx/render_text.h"
+#include "ui/views/controls/image_view.h"
+
+namespace {
+
+const int kPreferredWidth = 300;
+const int kPreferredHeight = 48;
+const int kIconViewWidth = 48;
+const int kIconPadding = 8;
+const int kBorderSize = 1;
+
+const SkColor kBorderColor = SkColorSetRGB(0xF1, 0xF1, 0xF1);
+
+const SkColor kDefaultTextColor = SkColorSetRGB(0x33, 0x33, 0x33);
+const SkColor kDimmedTextColor = SK_ColorGRAY;
+const SkColor kURLTextColor = SkColorSetRGB(0x00, 0x99, 0x33);
+
+// rgba(77,144,254,0.2)
+const SkColor kSelectedBorderColor = SkColorSetARGB(51, 77, 144, 254);
+// rgba(77,144,254,0.33)
+const SkColor kSelectedBackgroundColor = SkColorSetARGB(84, 77, 144, 254);
+const SkColor kHoverAndPushedColor = SkColorSetARGB(51, 77, 144, 254);
+
+// A non-interactive image view to display result icon.
+class IconView : public views::ImageView {
+ public:
+  IconView() : ImageView() {}
+  virtual ~IconView() {}
+
+ private:
+  // views::View overrides:
+  virtual bool HitTest(const gfx::Point& l) const OVERRIDE {

[sky, 2012/05/22 22:16:06]

Why do you need this?

[xiyuan, 2012/05/23 21:25:22]

If we don't do this, the parent SearchResultView loses its hover state when
mouse is hovering on the icon.

Should we extend ImageView to make this configurable? I used this in
AppListItemView and saw this in LauncherButton::IconView too.

+    return false;
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(IconView);
+};
+
+// Creates a RenderText of given |text| and |styles|. Callers takes ownership
+// of returned RenderText.
+gfx::RenderText* CreateRenderText(const string16& text,
+                                  const app_list::SearchResult::Tags& tags) {
+  gfx::RenderText* render_text = gfx::RenderText::CreateRenderText();
+  render_text->SetText(text);
+
+  gfx::StyleRange default_style;
+  default_style.foreground = kDefaultTextColor;
+  render_text->set_default_style(default_style);
+  render_text->ApplyDefaultStyle();
+
+  for (app_list::SearchResult::Tags::const_iterator it = tags.begin();
+       it != tags.end();
+       ++it) {
+    // NONE means default style so do nothing.
+    if (it->styles == app_list::SearchResult::Tag::NONE)
+      continue;
+
+    gfx::StyleRange style;
+    style.range = it->range;
+
+    if (it->styles & app_list::SearchResult::Tag::MATCH)
+      style.font_style = gfx::Font::BOLD;
+    if (it->styles & app_list::SearchResult::Tag::URL)
+      style.foreground = kURLTextColor;
+    if (it->styles & app_list::SearchResult::Tag::DIM)
+      style.foreground = kDimmedTextColor;
+
+    render_text->ApplyStyleRange(style);
+  }
+
+  return render_text;
+}
+
+}  // namespace
+
+namespace app_list {
+
+// static
+const char SearchResultView::kViewClassName[] = "ui/app_list/SearchResultView";
+
+SearchResultView::SearchResultView(views::ButtonListener* listener)
+    : views::CustomButton(listener),
+      result_(NULL),
+      selected_(false),
+      icon_(NULL) {
+  icon_ = new IconView;
+  AddChildView(icon_);
+}
+
+SearchResultView::~SearchResultView() {
+}
+
+void SearchResultView::SetResult(const SearchResult* result) {
+  result_ = result;
+
+  icon_->SetImage(result_ ? result_->icon() : SkBitmap());
+  UpdateTitleText();
+  UpdateDetailsText();
+  SchedulePaint();
+}
+
+void SearchResultView::SetSelected(bool selected) {
+  if (selected_ == selected)
+    return;
+
+  selected_ = selected;
+  SchedulePaint();
+}
+
+void SearchResultView::UpdateTitleText() {
+  if (!result_ || result_->title().empty()) {
+    title_text_.reset();
+  } else {
+    title_text_.reset(CreateRenderText(result_->title(),
+                                       result_->title_tags()));
+  }
+}
+
+void SearchResultView::UpdateDetailsText() {
+  if (!result_ || result_->details().empty()) {
+    details_text_.reset();
+  } else {
+    details_text_.reset(CreateRenderText(result_->details(),
+                                         result_->details_tags()));
+  }
+}
+
+std::string SearchResultView::GetClassName() const {
+  return kViewClassName;
+}
+
+gfx::Size SearchResultView::GetPreferredSize() {
+  return gfx::Size(kPreferredWidth, kPreferredHeight);
+}
+
+void SearchResultView::Layout() {
+  gfx::Rect rect(GetContentsBounds());
+  if (rect.IsEmpty())
+    return;
+
+  gfx::Rect icon_bounds(rect);
+  icon_bounds.set_width(kIconViewWidth);
+  icon_bounds.Inset(kIconPadding, kIconPadding);
+  icon_->SetBoundsRect(icon_bounds.Intersect(rect));
+}
+
+void SearchResultView::OnPaint(gfx::Canvas* canvas) {
+  gfx::Rect rect(GetContentsBounds());
+  if (rect.IsEmpty())
+    return;
+
+  gfx::Rect content_rect(rect);
+  content_rect.set_height(rect.height() - kBorderSize);
+
+  if (selected_) {
+    canvas->FillRect(content_rect, kSelectedBackgroundColor);
+  } else if (state() == BS_HOT || state() == BS_PUSHED) {
+    canvas->FillRect(content_rect, kHoverAndPushedColor);
+  }
+
+  gfx::Rect border_bottom = rect.Subtract(content_rect);
+  canvas->FillRect(border_bottom,
+                   selected_ ? kSelectedBorderColor : kBorderColor);
+
+  gfx::Rect text_bounds(rect);
+  text_bounds.set_x(kIconViewWidth);
+  text_bounds.set_width(rect.width() - kIconViewWidth);
+
+  if (title_text_.get() && details_text_.get()) {
+    gfx::Size title_size(text_bounds.width(),
+                         title_text_->GetStringSize().height());
+    gfx::Size details_size(text_bounds.width(),
+                           details_text_->GetStringSize().height());
+    int total_height = title_size.height() + + details_size.height();
+    int y = text_bounds.y() + (text_bounds.height() - total_height) / 2;
+
+    title_text_->SetDisplayRect(gfx::Rect(gfx::Point(text_bounds.x(), y),
+                                          title_size));
+    title_text_->Draw(canvas);
+
+    y += title_size.height();
+    details_text_->SetDisplayRect(gfx::Rect(gfx::Point(text_bounds.x(), y),
+                                            details_size));
+    details_text_->Draw(canvas);
+  } else if (title_text_.get()) {
+    gfx::Size title_size(text_bounds.width(),

[sky, 2012/05/22 22:16:06]

Don't you want the title to always get the same bounds regardless of whether
there is details?

[xiyuan, 2012/05/23 21:25:22]

Per mock, we should vertically center title text. So need to shift down a bit
when there is no details.

+                         title_text_->GetStringSize().height());
+    title_text_->SetDisplayRect(text_bounds.Center(title_size));
+    title_text_->Draw(canvas);
+  }
+}
+
+}  // namespace app_list