1// Copyright (c) 2012 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "chrome/browser/ui/views/location_bar/content_setting_image_view.h" 6 7#include "base/strings/utf_string_conversions.h" 8#include "chrome/browser/content_settings/tab_specific_content_settings.h" 9#include "chrome/browser/ui/content_settings/content_setting_bubble_model.h" 10#include "chrome/browser/ui/content_settings/content_setting_image_model.h" 11#include "chrome/browser/ui/views/content_setting_bubble_contents.h" 12#include "chrome/browser/ui/views/location_bar/location_bar_view.h" 13#include "grit/theme_resources.h" 14#include "ui/base/l10n/l10n_util.h" 15#include "ui/base/resource/resource_bundle.h" 16#include "ui/gfx/color_utils.h" 17#include "ui/views/controls/image_view.h" 18#include "ui/views/controls/label.h" 19#include "ui/views/widget/widget.h" 20 21 22namespace { 23const int kBackgroundImages[] = IMAGE_GRID(IDR_OMNIBOX_CONTENT_SETTING_BUBBLE); 24const int kStayOpenTimeMS = 3200; // Time spent with animation fully open. 25} 26 27 28// static 29const int ContentSettingImageView::kOpenTimeMS = 150; 30const int ContentSettingImageView::kAnimationDurationMS = 31 (kOpenTimeMS * 2) + kStayOpenTimeMS; 32 33ContentSettingImageView::ContentSettingImageView( 34 ContentSettingsType content_type, 35 LocationBarView* parent, 36 const gfx::FontList& font_list, 37 SkColor text_color, 38 SkColor parent_background_color) 39 : parent_(parent), 40 content_setting_image_model_( 41 ContentSettingImageModel::CreateContentSettingImageModel( 42 content_type)), 43 background_painter_( 44 views::Painter::CreateImageGridPainter(kBackgroundImages)), 45 icon_(new views::ImageView), 46 text_label_(new views::Label(base::string16(), font_list)), 47 slide_animator_(this), 48 pause_animation_(false), 49 pause_animation_state_(0.0), 50 bubble_widget_(NULL) { 51 icon_->SetHorizontalAlignment(views::ImageView::LEADING); 52 AddChildView(icon_); 53 54 text_label_->SetVisible(false); 55 text_label_->SetEnabledColor(text_color); 56 // Calculate the actual background color for the label. The background images 57 // are painted atop |parent_background_color|. We grab the color of the 58 // middle pixel of the middle image of the background, which we treat as the 59 // representative color of the entire background (reasonable, given the 60 // current appearance of these images). Then we alpha-blend it over the 61 // parent background color to determine the actual color the label text will 62 // sit atop. 63 const SkBitmap& bitmap( 64 ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed( 65 kBackgroundImages[4])->GetRepresentation(1.0f).sk_bitmap()); 66 SkAutoLockPixels pixel_lock(bitmap); 67 SkColor background_image_color = 68 bitmap.getColor(bitmap.width() / 2, bitmap.height() / 2); 69 // Tricky bit: We alpha blend an opaque version of |background_image_color| 70 // against |parent_background_color| using the original image grid color's 71 // alpha. This is because AlphaBlend(a, b, 255) always returns |a| unchanged 72 // even if |a| is a color with non-255 alpha. 73 text_label_->SetBackgroundColor( 74 color_utils::AlphaBlend(SkColorSetA(background_image_color, 255), 75 parent_background_color, 76 SkColorGetA(background_image_color))); 77 text_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT); 78 text_label_->SetElideBehavior(gfx::TRUNCATE); 79 AddChildView(text_label_); 80 81 slide_animator_.SetSlideDuration(kAnimationDurationMS); 82 slide_animator_.SetTweenType(gfx::Tween::LINEAR); 83} 84 85ContentSettingImageView::~ContentSettingImageView() { 86 if (bubble_widget_) 87 bubble_widget_->RemoveObserver(this); 88} 89 90void ContentSettingImageView::Update(content::WebContents* web_contents) { 91 // Note: We explicitly want to call this even if |web_contents| is NULL, so we 92 // get hidden properly while the user is editing the omnibox. 93 content_setting_image_model_->UpdateFromWebContents(web_contents); 94 95 if (!content_setting_image_model_->is_visible()) { 96 SetVisible(false); 97 return; 98 } 99 100 icon_->SetImage(ui::ResourceBundle::GetSharedInstance().GetImageSkiaNamed( 101 content_setting_image_model_->get_icon())); 102 icon_->SetTooltipText( 103 base::UTF8ToUTF16(content_setting_image_model_->get_tooltip())); 104 SetVisible(true); 105 106 // If the content blockage should be indicated to the user, start the 107 // animation and record that we indicated the blockage. 108 TabSpecificContentSettings* content_settings = web_contents ? 109 TabSpecificContentSettings::FromWebContents(web_contents) : NULL; 110 if (!content_settings || content_settings->IsBlockageIndicated( 111 content_setting_image_model_->get_content_settings_type())) 112 return; 113 114 // We just ignore this blockage if we're already showing some other string to 115 // the user. If this becomes a problem, we could design some sort of queueing 116 // mechanism to show one after the other, but it doesn't seem important now. 117 int string_id = content_setting_image_model_->explanatory_string_id(); 118 if (string_id && !background_showing()) { 119 text_label_->SetText(l10n_util::GetStringUTF16(string_id)); 120 text_label_->SetVisible(true); 121 slide_animator_.Show(); 122 } 123 124 content_settings->SetBlockageHasBeenIndicated( 125 content_setting_image_model_->get_content_settings_type()); 126} 127 128// static 129int ContentSettingImageView::GetBubbleOuterPadding(bool by_icon) { 130 return LocationBarView::kItemPadding - LocationBarView::kBubblePadding + 131 (by_icon ? 0 : LocationBarView::kIconInternalPadding); 132} 133 134void ContentSettingImageView::AnimationEnded(const gfx::Animation* animation) { 135 slide_animator_.Reset(); 136 if (!pause_animation_) { 137 text_label_->SetVisible(false); 138 parent_->Layout(); 139 parent_->SchedulePaint(); 140 } 141} 142 143void ContentSettingImageView::AnimationProgressed( 144 const gfx::Animation* animation) { 145 if (!pause_animation_) { 146 parent_->Layout(); 147 parent_->SchedulePaint(); 148 } 149} 150 151void ContentSettingImageView::AnimationCanceled( 152 const gfx::Animation* animation) { 153 AnimationEnded(animation); 154} 155 156gfx::Size ContentSettingImageView::GetPreferredSize() const { 157 // Height will be ignored by the LocationBarView. 158 gfx::Size size(icon_->GetPreferredSize()); 159 if (background_showing()) { 160 double state = slide_animator_.GetCurrentValue(); 161 // The fraction of the animation we'll spend animating the string into view, 162 // which is also the fraction we'll spend animating it closed; total 163 // animation (slide out, show, then slide in) is 1.0. 164 const double kOpenFraction = 165 static_cast<double>(kOpenTimeMS) / kAnimationDurationMS; 166 double size_fraction = 1.0; 167 if (state < kOpenFraction) 168 size_fraction = state / kOpenFraction; 169 if (state > (1.0 - kOpenFraction)) 170 size_fraction = (1.0 - state) / kOpenFraction; 171 size.Enlarge( 172 size_fraction * (text_label_->GetPreferredSize().width() + 173 GetTotalSpacingWhileAnimating()), 0); 174 size.SetToMax(background_painter_->GetMinimumSize()); 175 } 176 return size; 177} 178 179void ContentSettingImageView::Layout() { 180 const int icon_width = icon_->GetPreferredSize().width(); 181 icon_->SetBounds( 182 std::min((width() - icon_width) / 2, GetBubbleOuterPadding(true)), 0, 183 icon_width, height()); 184 text_label_->SetBounds( 185 icon_->bounds().right() + LocationBarView::kItemPadding, 0, 186 std::max(width() - GetTotalSpacingWhileAnimating() - icon_width, 0), 187 height()); 188} 189 190bool ContentSettingImageView::OnMousePressed(const ui::MouseEvent& event) { 191 // We want to show the bubble on mouse release; that is the standard behavior 192 // for buttons. 193 return true; 194} 195 196void ContentSettingImageView::OnMouseReleased(const ui::MouseEvent& event) { 197 if (HitTestPoint(event.location())) 198 OnClick(); 199} 200 201void ContentSettingImageView::OnGestureEvent(ui::GestureEvent* event) { 202 if (event->type() == ui::ET_GESTURE_TAP) 203 OnClick(); 204 if ((event->type() == ui::ET_GESTURE_TAP) || 205 (event->type() == ui::ET_GESTURE_TAP_DOWN)) 206 event->SetHandled(); 207} 208 209void ContentSettingImageView::OnPaintBackground(gfx::Canvas* canvas) { 210 if (background_showing()) 211 background_painter_->Paint(canvas, size()); 212} 213 214void ContentSettingImageView::OnWidgetDestroying(views::Widget* widget) { 215 DCHECK_EQ(bubble_widget_, widget); 216 bubble_widget_->RemoveObserver(this); 217 bubble_widget_ = NULL; 218 219 if (pause_animation_) { 220 slide_animator_.Reset(pause_animation_state_); 221 pause_animation_ = false; 222 slide_animator_.Show(); 223 } 224} 225 226int ContentSettingImageView::GetTotalSpacingWhileAnimating() const { 227 return GetBubbleOuterPadding(true) + LocationBarView::kItemPadding + 228 GetBubbleOuterPadding(false); 229} 230 231void ContentSettingImageView::OnClick() { 232 if (slide_animator_.is_animating()) { 233 if (!pause_animation_) { 234 pause_animation_ = true; 235 pause_animation_state_ = slide_animator_.GetCurrentValue(); 236 } 237 slide_animator_.Reset(); 238 } 239 240 content::WebContents* web_contents = parent_->GetWebContents(); 241 if (web_contents && !bubble_widget_) { 242 bubble_widget_ = 243 parent_->delegate()->CreateViewsBubble(new ContentSettingBubbleContents( 244 ContentSettingBubbleModel::CreateContentSettingBubbleModel( 245 parent_->delegate()->GetContentSettingBubbleModelDelegate(), 246 web_contents, parent_->profile(), 247 content_setting_image_model_->get_content_settings_type()), 248 web_contents, this, views::BubbleBorder::TOP_RIGHT)); 249 bubble_widget_->AddObserver(this); 250 bubble_widget_->Show(); 251 } 252} 253