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chrome/browser/android/compositor/layer/contextual_search_layer.cc

+// Copyright 2014 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/android/compositor/layer/contextual_search_layer.h"
+
+#include "cc/layers/layer.h"
+#include "cc/layers/nine_patch_layer.h"
+#include "cc/layers/solid_color_layer.h"
+#include "cc/layers/ui_resource_layer.h"
+#include "content/public/browser/android/content_view_core.h"
+#include "third_party/skia/include/core/SkColor.h"
+#include "ui/android/resources/resource_manager.h"
+#include "ui/android/resources/ui_resource_android.h"
+
+namespace {
+
+const SkColor kContextualSearchBarBorderColor = SkColorSetRGB(0xf1, 0xf1, 0xf1);
+
+}  // namespace
+
+namespace chrome {
+namespace android {
+
+// static
+scoped_refptr<ContextualSearchLayer> ContextualSearchLayer::Create(
+    ui::ResourceManager* resource_manager) {
+  return make_scoped_refptr(new ContextualSearchLayer(resource_manager));
+}
+
+void ContextualSearchLayer::SetProperties(
+    int search_bar_background_resource_id,
+    int search_bar_text_resource_id,
+    int search_provider_icon_resource_id,
+    int search_icon_resource_id,
+    int progress_bar_background_resource_id,
+    int progress_bar_resource_id,
+    content::ContentViewCore* content_view_core,
+    float search_panel_y,
+    float search_panel_width,
+    float search_bar_margin_top,
+    float search_bar_height,
+    float search_bar_text_opacity,
+    bool search_bar_border_visible,
+    float search_bar_border_y,
+    float search_bar_border_height,
+    float search_provider_icon_opacity,
+    float search_icon_padding_left,
+    float search_icon_opacity,
+    bool progress_bar_visible,
+    float progress_bar_y,
+    float progress_bar_height,
+    float progress_bar_opacity,
+    int progress_bar_completion) {
+  // Grab the dynamic Search Bar Text resource.
+  ui::ResourceManager::Resource* search_bar_text_resource =
+      resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_DYNAMIC,
+                                     search_bar_text_resource_id);
+
+  // Grab required static resources.
+  ui::ResourceManager::Resource* search_bar_background_resource =
+      resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_STATIC,
+                                     search_bar_background_resource_id);
+  ui::ResourceManager::Resource* search_provider_icon_resource =
+      resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_STATIC,
+                                     search_provider_icon_resource_id);
+  ui::ResourceManager::Resource* search_icon_resource =
+      resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_STATIC,
+                                     search_icon_resource_id);
+
+  DCHECK(search_bar_background_resource);
+  DCHECK(search_bar_text_resource);
+  DCHECK(search_provider_icon_resource);
+  DCHECK(search_icon_resource);
+
+  // ---------------------------------------------------------------------------
+  // Search Bar Background
+  // ---------------------------------------------------------------------------
+  gfx::Size background_size(search_panel_width, search_bar_height);
+  search_bar_background_->SetUIResourceId(
+      search_bar_background_resource->ui_resource->id());
+  search_bar_background_->SetBorder(
+      search_bar_background_resource->Border(background_size));
+  search_bar_background_->SetAperture(search_bar_background_resource->aperture);
+  search_bar_background_->SetBounds(background_size);
+
+  // ---------------------------------------------------------------------------
+  // Search Bar Text
+  // ---------------------------------------------------------------------------
+  // Centralizes the text vertically in the Search Bar.
+  float search_bar_padding_top =
+      search_bar_margin_top + (search_bar_height - search_bar_margin_top) / 2 -
+      search_bar_text_resource->size.height() / 2;
+  search_bar_text_->SetUIResourceId(
+      search_bar_text_resource->ui_resource->id());
+  search_bar_text_->SetBounds(search_bar_text_resource->size);
+  search_bar_text_->SetPosition(gfx::PointF(0.f, search_bar_padding_top));
+  search_bar_text_->SetOpacity(search_bar_text_opacity);
+
+  // ---------------------------------------------------------------------------
+  // Search Provider Icon
+  // ---------------------------------------------------------------------------
+  // Centralizes the Search Provider Icon horizontally in the Search Bar.
+  float search_provider_icon_left =
+      search_panel_width / 2.f -
+      search_provider_icon_resource->size.width() / 2.f;
+  search_provider_icon_->SetUIResourceId(
+      search_provider_icon_resource->ui_resource->id());
+  search_provider_icon_->SetBounds(search_provider_icon_resource->size);
+  search_provider_icon_->SetPosition(
+      gfx::PointF(search_provider_icon_left, 0.f));
+  search_provider_icon_->SetOpacity(search_provider_icon_opacity);
+
+  // ---------------------------------------------------------------------------
+  // Search Icon
+  // ---------------------------------------------------------------------------
+  // Centralizes the Search Icon vertically in the Search Bar.
+  float search_icon_padding_top =
+      search_bar_margin_top + (search_bar_height - search_bar_margin_top) / 2 -
+      search_icon_resource->size.height() / 2;
+  search_icon_->SetUIResourceId(search_icon_resource->ui_resource->id());
+  search_icon_->SetBounds(search_icon_resource->size);
+  search_icon_->SetPosition(
+      gfx::PointF(search_icon_padding_left, search_icon_padding_top));
+  search_icon_->SetOpacity(search_icon_opacity);
+
+  // ---------------------------------------------------------------------------
+  // Search Content View
+  // ---------------------------------------------------------------------------
+  content_view_container_->SetPosition(gfx::PointF(0.f, search_bar_height));
+  if (content_view_core && content_view_core->GetLayer().get()) {
+    scoped_refptr<cc::Layer> content_view_layer = content_view_core->GetLayer();
+    if (content_view_layer->parent() != content_view_container_)
+      content_view_container_->AddChild(content_view_layer);
+  } else {
+    content_view_container_->RemoveAllChildren();
+  }
+
+  // ---------------------------------------------------------------------------
+  // Search Panel.
+  // ---------------------------------------------------------------------------
+  layer_->SetPosition(gfx::PointF(0.f, search_panel_y));
+
+  // ---------------------------------------------------------------------------
+  // Progress Bar
+  // ---------------------------------------------------------------------------
+  bool should_render_progress_bar =
+      progress_bar_visible && progress_bar_opacity > 0.f;
+  if (should_render_progress_bar) {
+    // Load Progress Bar resources.
+    ui::ResourceManager::Resource* progress_bar_background_resource =
+        resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_STATIC,
+                                       progress_bar_background_resource_id);
+    ui::ResourceManager::Resource* progress_bar_resource =
+        resource_manager_->GetResource(ui::ANDROID_RESOURCE_TYPE_STATIC,
+                                       progress_bar_resource_id);
+
+    DCHECK(progress_bar_background_resource);
+    DCHECK(progress_bar_resource);
+
+    // Progress Bar Background
+    if (progress_bar_background_->parent() != layer_)
+      layer_->AddChild(progress_bar_background_);
+
+    gfx::Size progress_bar_background_size(search_panel_width,
+                                           progress_bar_height);
+    progress_bar_background_->SetUIResourceId(
+        progress_bar_background_resource->ui_resource->id());
+    progress_bar_background_->SetBorder(
+        progress_bar_background_resource->Border(progress_bar_background_size));
+    progress_bar_background_->SetAperture(
+        progress_bar_background_resource->aperture);
+    progress_bar_background_->SetBounds(progress_bar_background_size);
+    progress_bar_background_->SetPosition(gfx::PointF(0.f, progress_bar_y));
+    progress_bar_background_->SetOpacity(progress_bar_opacity);
+
+    // Progress Bar
+    if (progress_bar_->parent() != layer_) {
+      layer_->AddChild(progress_bar_);
+    }
+    float progress_bar_width =
+        floor(search_panel_width * progress_bar_completion / 100.f);
+    gfx::Size progress_bar_size(progress_bar_width, progress_bar_height);
+    progress_bar_->SetUIResourceId(progress_bar_resource->ui_resource->id());
+    progress_bar_->SetBorder(progress_bar_resource->Border(progress_bar_size));
+    progress_bar_->SetAperture(progress_bar_resource->aperture);
+    progress_bar_->SetBounds(progress_bar_size);
+    progress_bar_->SetPosition(gfx::PointF(0.f, progress_bar_y));
+    progress_bar_->SetOpacity(progress_bar_opacity);
+  } else {
+    // Removes Progress Bar and its Background from the Layer Tree.
+    if (progress_bar_background_.get() && progress_bar_background_->parent())
+      progress_bar_background_->RemoveFromParent();
+
+    if (progress_bar_.get() && progress_bar_->parent())
+      progress_bar_->RemoveFromParent();
+  }
+
+  // ---------------------------------------------------------------------------
+  // Search Bar border.
+  // ---------------------------------------------------------------------------
+  if (!should_render_progress_bar && search_bar_border_visible) {
+    gfx::Size search_bar_border_size(search_panel_width,
+                                     search_bar_border_height);
+    search_bar_border_->SetBounds(search_bar_border_size);
+    search_bar_border_->SetPosition(gfx::PointF(0.f, search_bar_border_y));
+    layer_->AddChild(search_bar_border_);
+  } else if (search_bar_border_.get() && search_bar_border_->parent()) {
+    search_bar_border_->RemoveFromParent();
+  }
+}
+
+ContextualSearchLayer::ContextualSearchLayer(
+    ui::ResourceManager* resource_manager)
+    : resource_manager_(resource_manager),
+      layer_(cc::Layer::Create()),
+      search_bar_background_(cc::NinePatchLayer::Create()),
+      search_bar_text_(cc::UIResourceLayer::Create()),
+      search_provider_icon_(cc::UIResourceLayer::Create()),
+      search_icon_(cc::UIResourceLayer::Create()),
+      content_view_container_(cc::Layer::Create()),
+      search_bar_border_(cc::SolidColorLayer::Create()),
+      progress_bar_(cc::NinePatchLayer::Create()),
+      progress_bar_background_(cc::NinePatchLayer::Create()) {
+  layer_->SetMasksToBounds(false);
+  layer_->SetIsDrawable(true);
+
+  // Search Bar Background
+  search_bar_background_->SetIsDrawable(true);
+  search_bar_background_->SetFillCenter(true);
+  layer_->AddChild(search_bar_background_);
+
+  // Search Bar Text
+  search_bar_text_->SetIsDrawable(true);
+  layer_->AddChild(search_bar_text_);
+
+  // Search Provider Icon
+  search_provider_icon_->SetIsDrawable(true);
+  layer_->AddChild(search_provider_icon_);
+
+  // Search Icon
+  search_icon_->SetIsDrawable(true);
+  layer_->AddChild(search_icon_);
+
+  // Search Bar Border
+  search_bar_border_->SetIsDrawable(true);
+  search_bar_border_->SetBackgroundColor(kContextualSearchBarBorderColor);
+
+  // Progress Bar Background
+  progress_bar_background_->SetIsDrawable(true);
+  progress_bar_background_->SetFillCenter(true);
+
+  // Progress Bar
+  progress_bar_->SetIsDrawable(true);
+  progress_bar_->SetFillCenter(true);
+
+  // Search Content View
+  layer_->AddChild(content_view_container_);
+}
+
+ContextualSearchLayer::~ContextualSearchLayer() {
+}
+
+scoped_refptr<cc::Layer> ContextualSearchLayer::layer() {
+  return layer_;
+}
+
+}  //  namespace android
+}  //  namespace chrome