// Copyright (c) 2009 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/gtk/tabs/tab_renderer_gtk.h" #include #include "app/gfx/canvas_paint.h" #include "app/gfx/favicon_size.h" #include "app/l10n_util.h" #include "app/resource_bundle.h" #include "chrome/browser/browser.h" #include "chrome/browser/browser_theme_provider.h" #include "chrome/browser/gtk/custom_button.h" #include "chrome/browser/profile.h" #include "chrome/browser/tab_contents/tab_contents.h" #include "chrome/common/gtk_util.h" #include "chrome/common/notification_service.h" #include "grit/app_resources.h" #include "grit/generated_resources.h" #include "grit/theme_resources.h" #include "skia/ext/image_operations.h" namespace { const int kLeftPadding = 16; const int kTopPadding = 6; const int kRightPadding = 15; const int kBottomPadding = 5; const int kFavIconTitleSpacing = 4; const int kTitleCloseButtonSpacing = 5; const int kStandardTitleWidth = 175; const int kDropShadowOffset = 2; // Preferred width of pinned tabs. const int kPinnedTabWidth = 56; // When a non-pinned tab is pinned the width of the tab animates. If the width // of a pinned tab is >= kPinnedTabRendererAsTabWidth then the tab is rendered // as a normal tab. This is done to avoid having the title immediately // disappear when transitioning a tab from normal to pinned. const int kPinnedTabRendererAsTabWidth = kPinnedTabWidth + 30; // The tab images are designed to overlap the toolbar by 1 pixel. For now we // don't actually overlap the toolbar, so this is used to know how many pixels // at the bottom of the tab images are to be ignored. const int kToolbarOverlap = 1; // How long the hover state takes. const int kHoverDurationMs = 90; // How opaque to make the hover state (out of 1). const double kHoverOpacity = 0.33; const SkScalar kTabCapWidth = 15; const SkScalar kTabTopCurveWidth = 4; const SkScalar kTabBottomCurveWidth = 3; // The vertical and horizontal offset used to position the close button // in the tab. TODO(jhawkins): Ask pkasting what the Fuzz is about. const int kCloseButtonVertFuzz = 0; const int kCloseButtonHorzFuzz = 5; SkBitmap* crashed_fav_icon = NULL; // Gets the bounds of |widget| relative to |parent|. gfx::Rect GetWidgetBoundsRelativeToParent(GtkWidget* parent, GtkWidget* widget) { gfx::Point parent_pos = gtk_util::GetWidgetScreenPosition(parent); gfx::Point widget_pos = gtk_util::GetWidgetScreenPosition(widget); return gfx::Rect(widget_pos.x() - parent_pos.x(), widget_pos.y() - parent_pos.y(), widget->allocation.width, widget->allocation.height); } } // namespace TabRendererGtk::LoadingAnimation::Data::Data(ThemeProvider* theme_provider) { // The loading animation image is a strip of states. Each state must be // square, so the height must divide the width evenly. loading_animation_frames = theme_provider->GetBitmapNamed(IDR_THROBBER); DCHECK(loading_animation_frames); DCHECK_EQ(loading_animation_frames->width() % loading_animation_frames->height(), 0); loading_animation_frame_count = loading_animation_frames->width() / loading_animation_frames->height(); waiting_animation_frames = theme_provider->GetBitmapNamed(IDR_THROBBER_WAITING); DCHECK(waiting_animation_frames); DCHECK_EQ(waiting_animation_frames->width() % waiting_animation_frames->height(), 0); waiting_animation_frame_count = waiting_animation_frames->width() / waiting_animation_frames->height(); waiting_to_loading_frame_count_ratio = waiting_animation_frame_count / loading_animation_frame_count; // TODO(beng): eventually remove this when we have a proper themeing system. // themes not supporting IDR_THROBBER_WAITING are causing this // value to be 0 which causes DIV0 crashes. The value of 5 // matches the current bitmaps in our source. if (waiting_to_loading_frame_count_ratio == 0) waiting_to_loading_frame_count_ratio = 5; } TabRendererGtk::LoadingAnimation::Data::Data( int loading, int waiting, int waiting_to_loading) : waiting_animation_frames(NULL), loading_animation_frames(NULL), loading_animation_frame_count(loading), waiting_animation_frame_count(waiting), waiting_to_loading_frame_count_ratio(waiting_to_loading) { } bool TabRendererGtk::initialized_ = false; TabRendererGtk::TabImage TabRendererGtk::tab_active_ = {0}; TabRendererGtk::TabImage TabRendererGtk::tab_inactive_ = {0}; TabRendererGtk::TabImage TabRendererGtk::tab_alpha = {0}; gfx::Font* TabRendererGtk::title_font_ = NULL; int TabRendererGtk::title_font_height_ = 0; int TabRendererGtk::close_button_width_ = 0; int TabRendererGtk::close_button_height_ = 0; SkColor TabRendererGtk::selected_title_color_ = SK_ColorBLACK; SkColor TabRendererGtk::unselected_title_color_ = SkColorSetRGB(64, 64, 64); //////////////////////////////////////////////////////////////////////////////// // TabRendererGtk::LoadingAnimation, public: // TabRendererGtk::LoadingAnimation::LoadingAnimation( ThemeProvider* theme_provider) : data_(new Data(theme_provider)), theme_provider_(theme_provider), animation_state_(ANIMATION_NONE), animation_frame_(0) { registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED, NotificationService::AllSources()); } TabRendererGtk::LoadingAnimation::LoadingAnimation( const LoadingAnimation::Data& data) : data_(new Data(data)), theme_provider_(NULL), animation_state_(ANIMATION_NONE), animation_frame_(0) { } void TabRendererGtk::LoadingAnimation::ValidateLoadingAnimation( AnimationState animation_state) { if (animation_state_ != animation_state) { // The waiting animation is the reverse of the loading animation, but at a // different rate - the following reverses and scales the animation_frame_ // so that the frame is at an equivalent position when going from one // animation to the other. if (animation_state_ == ANIMATION_WAITING && animation_state == ANIMATION_LOADING) { animation_frame_ = data_->loading_animation_frame_count - (animation_frame_ / data_->waiting_to_loading_frame_count_ratio); } animation_state_ = animation_state; } if (animation_state_ != ANIMATION_NONE) { animation_frame_ = ++animation_frame_ % ((animation_state_ == ANIMATION_WAITING) ? data_->waiting_animation_frame_count : data_->loading_animation_frame_count); } else { animation_frame_ = 0; } } void TabRendererGtk::LoadingAnimation::Observe( NotificationType type, const NotificationSource& source, const NotificationDetails& details) { DCHECK(type == NotificationType::BROWSER_THEME_CHANGED); data_.reset(new Data(theme_provider_)); } //////////////////////////////////////////////////////////////////////////////// // FaviconCrashAnimation // // A custom animation subclass to manage the favicon crash animation. class TabRendererGtk::FavIconCrashAnimation : public Animation, public AnimationDelegate { public: explicit FavIconCrashAnimation(TabRendererGtk* target) : ALLOW_THIS_IN_INITIALIZER_LIST(Animation(1000, 25, this)), target_(target) { } virtual ~FavIconCrashAnimation() {} // Animation overrides: virtual void AnimateToState(double state) { const double kHidingOffset = 27; if (state < .5) { target_->SetFavIconHidingOffset( static_cast(floor(kHidingOffset * 2.0 * state))); } else { target_->DisplayCrashedFavIcon(); target_->SetFavIconHidingOffset( static_cast( floor(kHidingOffset - ((state - .5) * 2.0 * kHidingOffset)))); } } // AnimationDelegate overrides: virtual void AnimationCanceled(const Animation* animation) { target_->SetFavIconHidingOffset(0); } private: TabRendererGtk* target_; DISALLOW_COPY_AND_ASSIGN(FavIconCrashAnimation); }; //////////////////////////////////////////////////////////////////////////////// // TabRendererGtk, public: TabRendererGtk::TabRendererGtk(ThemeProvider* theme_provider) : showing_icon_(false), showing_close_button_(false), fav_icon_hiding_offset_(0), should_display_crashed_favicon_(false), loading_animation_(theme_provider), close_button_color_(NULL) { InitResources(); data_.pinned = false; tab_.Own(gtk_fixed_new()); gtk_widget_set_app_paintable(tab_.get(), TRUE); g_signal_connect(G_OBJECT(tab_.get()), "expose-event", G_CALLBACK(OnExposeEvent), this); g_signal_connect(G_OBJECT(tab_.get()), "size-allocate", G_CALLBACK(OnSizeAllocate), this); close_button_.reset(MakeCloseButton()); gtk_widget_show(tab_.get()); hover_animation_.reset(new SlideAnimation(this)); hover_animation_->SetSlideDuration(kHoverDurationMs); } TabRendererGtk::~TabRendererGtk() { tab_.Destroy(); } void TabRendererGtk::UpdateData(TabContents* contents, bool loading_only) { DCHECK(contents); if (!loading_only) { data_.title = contents->GetTitle(); data_.off_the_record = contents->profile()->IsOffTheRecord(); data_.crashed = contents->is_crashed(); data_.favicon = contents->GetFavIcon(); } // Loading state also involves whether we show the favicon, since that's where // we display the throbber. data_.loading = contents->is_loading(); data_.show_icon = contents->ShouldDisplayFavIcon(); theme_provider_ = contents->profile()->GetThemeProvider(); } void TabRendererGtk::UpdateFromModel() { // Force a layout, since the tab may have grown a favicon. Layout(); SchedulePaint(); if (data_.crashed) { if (!should_display_crashed_favicon_ && !IsPerformingCrashAnimation()) StartCrashAnimation(); } else { if (IsPerformingCrashAnimation()) StopCrashAnimation(); ResetCrashedFavIcon(); } } void TabRendererGtk::set_pinned(bool pinned) { data_.pinned = pinned; } bool TabRendererGtk::is_pinned() const { return data_.pinned; } bool TabRendererGtk::IsSelected() const { return true; } bool TabRendererGtk::IsVisible() const { return GTK_WIDGET_FLAGS(tab_.get()) & GTK_VISIBLE; } void TabRendererGtk::SetVisible(bool visible) const { if (visible) { gtk_widget_show(tab_.get()); if (data_.pinned) gtk_widget_show(close_button_->widget()); } else { gtk_widget_hide_all(tab_.get()); } } void TabRendererGtk::ValidateLoadingAnimation(AnimationState animation_state) { loading_animation_.ValidateLoadingAnimation(animation_state); } // static gfx::Size TabRendererGtk::GetMinimumUnselectedSize() { InitResources(); gfx::Size minimum_size; minimum_size.set_width(kLeftPadding + kRightPadding); // Since we use bitmap images, the real minimum height of the image is // defined most accurately by the height of the end cap images. minimum_size.set_height(tab_active_.image_l->height() - kToolbarOverlap); return minimum_size; } // static gfx::Size TabRendererGtk::GetMinimumSelectedSize() { gfx::Size minimum_size = GetMinimumUnselectedSize(); minimum_size.set_width(kLeftPadding + kFavIconSize + kRightPadding); return minimum_size; } // static gfx::Size TabRendererGtk::GetStandardSize() { gfx::Size standard_size = GetMinimumUnselectedSize(); standard_size.Enlarge(kFavIconTitleSpacing + kStandardTitleWidth, 0); return standard_size; } // static int TabRendererGtk::GetPinnedWidth() { return kPinnedTabWidth; } // static int TabRendererGtk::GetContentHeight() { // The height of the content of the Tab is the largest of the favicon, // the title text and the close button graphic. int content_height = std::max(kFavIconSize, title_font_height_); return std::max(content_height, close_button_height_); } // static void TabRendererGtk::LoadTabImages() { ResourceBundle& rb = ResourceBundle::GetSharedInstance(); tab_alpha.image_l = rb.GetBitmapNamed(IDR_TAB_ALPHA_LEFT); tab_alpha.image_r = rb.GetBitmapNamed(IDR_TAB_ALPHA_RIGHT); tab_active_.image_l = rb.GetBitmapNamed(IDR_TAB_ACTIVE_LEFT); tab_active_.image_c = rb.GetBitmapNamed(IDR_TAB_ACTIVE_CENTER); tab_active_.image_r = rb.GetBitmapNamed(IDR_TAB_ACTIVE_RIGHT); tab_active_.l_width = tab_active_.image_l->width(); tab_active_.r_width = tab_active_.image_r->width(); tab_inactive_.image_l = rb.GetBitmapNamed(IDR_TAB_INACTIVE_LEFT); tab_inactive_.image_c = rb.GetBitmapNamed(IDR_TAB_INACTIVE_CENTER); tab_inactive_.image_r = rb.GetBitmapNamed(IDR_TAB_INACTIVE_RIGHT); tab_inactive_.l_width = tab_inactive_.image_l->width(); tab_inactive_.r_width = tab_inactive_.image_r->width(); close_button_width_ = rb.GetBitmapNamed(IDR_TAB_CLOSE)->width(); close_button_height_ = rb.GetBitmapNamed(IDR_TAB_CLOSE)->height(); } // static void TabRendererGtk::SetSelectedTitleColor(SkColor color) { selected_title_color_ = color; } // static void TabRendererGtk::SetUnselectedTitleColor(SkColor color) { unselected_title_color_ = color; } gfx::Rect TabRendererGtk::GetNonMirroredBounds(GtkWidget* parent) const { // The tabstrip widget is a windowless widget so the tab widget's allocation // is relative to the browser titlebar. We need the bounds relative to the // tabstrip. gfx::Rect bounds = GetWidgetBoundsRelativeToParent(parent, widget()); bounds.set_x(gtk_util::MirroredLeftPointForRect(parent, bounds)); return bounds; } gfx::Rect TabRendererGtk::GetRequisition() const { return gfx::Rect(requisition_.x(), requisition_.y(), requisition_.width(), requisition_.height()); } void TabRendererGtk::SetBounds(const gfx::Rect& bounds) { requisition_ = bounds; gtk_widget_set_size_request(tab_.get(), bounds.width(), bounds.height()); } //////////////////////////////////////////////////////////////////////////////// // TabRendererGtk, protected: std::wstring TabRendererGtk::GetTitle() const { return UTF16ToWideHack(data_.title); } /////////////////////////////////////////////////////////////////////////////// // TabRendererGtk, AnimationDelegate implementation: void TabRendererGtk::AnimationProgressed(const Animation* animation) { gtk_widget_queue_draw(tab_.get()); } void TabRendererGtk::AnimationCanceled(const Animation* animation) { AnimationEnded(animation); } void TabRendererGtk::AnimationEnded(const Animation* animation) { gtk_widget_queue_draw(tab_.get()); } //////////////////////////////////////////////////////////////////////////////// // TabRendererGtk, private: void TabRendererGtk::StartCrashAnimation() { if (!crash_animation_.get()) crash_animation_.reset(new FavIconCrashAnimation(this)); crash_animation_->Reset(); crash_animation_->Start(); } void TabRendererGtk::StopCrashAnimation() { if (!crash_animation_.get()) return; crash_animation_->Stop(); } bool TabRendererGtk::IsPerformingCrashAnimation() const { return crash_animation_.get() && crash_animation_->IsAnimating(); } void TabRendererGtk::SetFavIconHidingOffset(int offset) { fav_icon_hiding_offset_ = offset; SchedulePaint(); } void TabRendererGtk::DisplayCrashedFavIcon() { should_display_crashed_favicon_ = true; } void TabRendererGtk::ResetCrashedFavIcon() { should_display_crashed_favicon_ = false; } void TabRendererGtk::Paint(gfx::Canvas* canvas) { // Don't paint if we're narrower than we can render correctly. (This should // only happen during animations). if (width() < GetMinimumUnselectedSize().width() && !is_pinned()) return; // See if the model changes whether the icons should be painted. const bool show_icon = ShouldShowIcon(); const bool show_close_button = ShouldShowCloseBox(); if (show_icon != showing_icon_ || show_close_button != showing_close_button_) Layout(); PaintTabBackground(canvas); if (!is_pinned() || width() > kPinnedTabRendererAsTabWidth) PaintTitle(canvas); if (show_icon) PaintIcon(canvas); } SkBitmap TabRendererGtk::PaintBitmap() { gfx::Canvas canvas(width(), height(), false); Paint(&canvas); return canvas.ExtractBitmap(); } void TabRendererGtk::SchedulePaint() { gtk_widget_queue_draw(tab_.get()); } gfx::Rect TabRendererGtk::GetLocalBounds() { return gfx::Rect(0, 0, bounds_.width(), bounds_.height()); } void TabRendererGtk::Layout() { gfx::Rect local_bounds = GetLocalBounds(); if (local_bounds.IsEmpty()) return; local_bounds.Inset(kLeftPadding, kTopPadding, kRightPadding, kBottomPadding); // Figure out who is tallest. int content_height = GetContentHeight(); // Size the Favicon. showing_icon_ = ShouldShowIcon(); if (showing_icon_) { int favicon_top = kTopPadding + (content_height - kFavIconSize) / 2; favicon_bounds_.SetRect(local_bounds.x(), favicon_top, kFavIconSize, kFavIconSize); if (is_pinned() && bounds_.width() < kPinnedTabRendererAsTabWidth) favicon_bounds_.set_x((bounds_.width() - kFavIconSize) / 2); } else { favicon_bounds_.SetRect(local_bounds.x(), local_bounds.y(), 0, 0); } // Size the Close button. showing_close_button_ = ShouldShowCloseBox(); if (showing_close_button_) { int close_button_top = kTopPadding + kCloseButtonVertFuzz + (content_height - close_button_height_) / 2; close_button_bounds_.SetRect(local_bounds.width() + kCloseButtonHorzFuzz, close_button_top, close_button_width_, close_button_height_); // If the close button color has changed, generate a new one. if (theme_provider_) { SkColor tab_text_color = theme_provider_->GetColor(BrowserThemeProvider::COLOR_TAB_TEXT); if (!close_button_color_ || tab_text_color != close_button_color_) { close_button_color_ = tab_text_color; ResourceBundle& rb = ResourceBundle::GetSharedInstance(); close_button_->SetBackground(close_button_color_, rb.GetBitmapNamed(IDR_TAB_CLOSE), rb.GetBitmapNamed(IDR_TAB_CLOSE_MASK)); } } } else { close_button_bounds_.SetRect(0, 0, 0, 0); } if (!is_pinned() || width() >= kPinnedTabRendererAsTabWidth) { // Size the Title text to fill the remaining space. int title_left = favicon_bounds_.right() + kFavIconTitleSpacing; // Center the mean line of the text in the content area. int title_top = kTopPadding + (content_height - title_font_->baseline()) / 2; // If the user has big fonts, the title will appear rendered too far down // on the y-axis if we use the regular top padding, so we need to adjust it // so that the text appears centered. gfx::Size minimum_size = GetMinimumUnselectedSize(); int text_height = title_top + title_font_height_ + kBottomPadding; if (text_height > minimum_size.height()) title_top -= (text_height - minimum_size.height()) / 2; int title_width; if (close_button_bounds_.width() && close_button_bounds_.height()) { title_width = std::max(close_button_bounds_.x() - kTitleCloseButtonSpacing - title_left, 0); } else { title_width = std::max(local_bounds.width() - title_left, 0); } title_bounds_.SetRect(title_left, title_top, title_width, title_font_height_); } favicon_bounds_.set_x( gtk_util::MirroredLeftPointForRect(tab_.get(), favicon_bounds_)); close_button_bounds_.set_x( gtk_util::MirroredLeftPointForRect(tab_.get(), close_button_bounds_)); title_bounds_.set_x( gtk_util::MirroredLeftPointForRect(tab_.get(), title_bounds_)); MoveCloseButtonWidget(); } void TabRendererGtk::MoveCloseButtonWidget() { if (!close_button_bounds_.IsEmpty()) { gtk_fixed_move(GTK_FIXED(tab_.get()), close_button_->widget(), close_button_bounds_.x(), close_button_bounds_.y()); gtk_widget_show(close_button_->widget()); } else { gtk_widget_hide(close_button_->widget()); } } void TabRendererGtk::PaintTab(GdkEventExpose* event) { gfx::CanvasPaint canvas(event, false); if (canvas.is_empty()) return; // The tab is rendered into a windowless widget whose offset is at the // coordinate event->area. Translate by these offsets so we can render at // (0,0) to match Windows' rendering metrics. canvas.TranslateInt(event->area.x, event->area.y); Paint(&canvas); } void TabRendererGtk::PaintTitle(gfx::Canvas* canvas) { // Paint the Title. string16 title = data_.title; if (title.empty()) { if (data_.loading) { title = l10n_util::GetStringUTF16(IDS_TAB_LOADING_TITLE); } else { title = l10n_util::GetStringUTF16(IDS_TAB_UNTITLED_TITLE); } } else { Browser::FormatTitleForDisplay(&title); } SkColor title_color = IsSelected() ? selected_title_color_ : unselected_title_color_; canvas->DrawStringInt(UTF16ToWideHack(title), *title_font_, title_color, title_bounds_.x(), title_bounds_.y(), title_bounds_.width(), title_bounds_.height()); } void TabRendererGtk::PaintIcon(gfx::Canvas* canvas) { if (loading_animation_.animation_state() != ANIMATION_NONE) { PaintLoadingAnimation(canvas); } else { canvas->save(); canvas->ClipRectInt(0, 0, width(), height() - kFavIconTitleSpacing); if (should_display_crashed_favicon_) { canvas->DrawBitmapInt(*crashed_fav_icon, 0, 0, crashed_fav_icon->width(), crashed_fav_icon->height(), favicon_bounds_.x(), favicon_bounds_.y() + fav_icon_hiding_offset_, kFavIconSize, kFavIconSize, true); } else { if (!data_.favicon.isNull()) { // TODO(pkasting): Use code in tab_icon_view.cc:PaintIcon() (or switch // to using that class to render the favicon). canvas->DrawBitmapInt(data_.favicon, 0, 0, data_.favicon.width(), data_.favicon.height(), favicon_bounds_.x(), favicon_bounds_.y() + fav_icon_hiding_offset_, kFavIconSize, kFavIconSize, true); } } canvas->restore(); } } void TabRendererGtk::PaintTabBackground(gfx::Canvas* canvas) { if (IsSelected()) { // Sometimes detaching a tab quickly can result in the model reporting it // as not being selected, so is_drag_clone_ ensures that we always paint // the active representation for the dragged tab. PaintActiveTabBackground(canvas); } else { // Draw our hover state. Animation* animation = hover_animation_.get(); PaintInactiveTabBackground(canvas); if (animation->GetCurrentValue() > 0) { SkRect bounds; bounds.set(0, 0, SkIntToScalar(width()), SkIntToScalar(height())); canvas->saveLayerAlpha(&bounds, static_cast(animation->GetCurrentValue() * kHoverOpacity * 0xff), SkCanvas::kARGB_ClipLayer_SaveFlag); canvas->drawARGB(0, 255, 255, 255, SkXfermode::kClear_Mode); PaintActiveTabBackground(canvas); canvas->restore(); } } } void TabRendererGtk::PaintInactiveTabBackground(gfx::Canvas* canvas) { bool is_otr = data_.off_the_record; // The tab image needs to be lined up with the background image // so that it feels partially transparent. int offset = 1; int offset_y = 20; int tab_id = is_otr ? IDR_THEME_TAB_BACKGROUND_INCOGNITO : IDR_THEME_TAB_BACKGROUND; SkBitmap* tab_bg = theme_provider_->GetBitmapNamed(tab_id); // Draw left edge. SkBitmap tab_l = skia::ImageOperations::CreateTiledBitmap( *tab_bg, offset, offset_y, tab_active_.l_width, height() + kToolbarOverlap); SkBitmap theme_l = skia::ImageOperations::CreateMaskedBitmap( tab_l, *tab_alpha.image_l); canvas->DrawBitmapInt(theme_l, 0, 0); // Draw right edge. SkBitmap tab_r = skia::ImageOperations::CreateTiledBitmap( *tab_bg, offset + width() - tab_active_.r_width, offset_y, tab_active_.r_width, height() + kToolbarOverlap); SkBitmap theme_r = skia::ImageOperations::CreateMaskedBitmap( tab_r, *tab_alpha.image_r); canvas->DrawBitmapInt(theme_r, width() - theme_r.width(), 0); // Draw center. canvas->TileImageInt(*tab_bg, offset + tab_active_.l_width, kDropShadowOffset + offset_y, tab_active_.l_width, 2, width() - tab_active_.l_width - tab_active_.r_width, height() - 2); canvas->DrawBitmapInt(*tab_inactive_.image_l, 0, 0); canvas->TileImageInt(*tab_inactive_.image_c, tab_inactive_.l_width, 0, width() - tab_inactive_.l_width - tab_inactive_.r_width, height()); canvas->DrawBitmapInt(*tab_inactive_.image_r, width() - tab_inactive_.r_width, 0); } void TabRendererGtk::PaintActiveTabBackground(gfx::Canvas* canvas) { int offset = 1; SkBitmap* tab_bg = theme_provider_->GetBitmapNamed(IDR_THEME_TOOLBAR); // Draw left edge. SkBitmap tab_l = skia::ImageOperations::CreateTiledBitmap( *tab_bg, offset, 0, tab_active_.l_width, height() + kToolbarOverlap); SkBitmap theme_l = skia::ImageOperations::CreateMaskedBitmap( tab_l, *tab_alpha.image_l); canvas->DrawBitmapInt(theme_l, 0, 0); // Draw right edge. SkBitmap tab_r = skia::ImageOperations::CreateTiledBitmap( *tab_bg, offset + width() - tab_active_.r_width, 0, tab_active_.r_width, height() + kToolbarOverlap); SkBitmap theme_r = skia::ImageOperations::CreateMaskedBitmap( tab_r, *tab_alpha.image_r); canvas->DrawBitmapInt(theme_r, width() - tab_active_.r_width, 0); // Draw center. canvas->TileImageInt(*tab_bg, offset + tab_active_.l_width, 2, tab_active_.l_width, 2, width() - tab_active_.l_width - tab_active_.r_width, height() - 2); canvas->DrawBitmapInt(*tab_active_.image_l, 0, 0); canvas->TileImageInt(*tab_active_.image_c, tab_active_.l_width, 0, width() - tab_active_.l_width - tab_active_.r_width, height()); canvas->DrawBitmapInt(*tab_active_.image_r, width() - tab_active_.r_width, 0); } void TabRendererGtk::PaintLoadingAnimation(gfx::Canvas* canvas) { const SkBitmap* frames = (loading_animation_.animation_state() == ANIMATION_WAITING) ? loading_animation_.waiting_animation_frames() : loading_animation_.loading_animation_frames(); const int image_size = frames->height(); const int image_offset = loading_animation_.animation_frame() * image_size; const int dst_y = (height() - image_size) / 2; // Just like with the Tab's title and favicon, the position for the page // loading animation also needs to be mirrored if the UI layout is RTL. int dst_x; if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT) { dst_x = width() - kLeftPadding - image_size; } else { dst_x = kLeftPadding; } canvas->DrawBitmapInt(*frames, image_offset, 0, image_size, image_size, dst_x, dst_y, image_size, image_size, false); } int TabRendererGtk::IconCapacity() const { if (height() < GetMinimumUnselectedSize().height()) return 0; return (width() - kLeftPadding - kRightPadding) / kFavIconSize; } bool TabRendererGtk::ShouldShowIcon() const { if (is_pinned() && height() >= GetMinimumUnselectedSize().height()) { return true; } else if (!data_.show_icon) { return false; } else if (IsSelected()) { // The selected tab clips favicon before close button. return IconCapacity() >= 2; } // Non-selected tabs clip close button before favicon. return IconCapacity() >= 1; } bool TabRendererGtk::ShouldShowCloseBox() const { // The selected tab never clips close button. return !is_pinned() && (IsSelected() || IconCapacity() >= 3); } CustomDrawButton* TabRendererGtk::MakeCloseButton() { CustomDrawButton* button = new CustomDrawButton(IDR_TAB_CLOSE, IDR_TAB_CLOSE_P, IDR_TAB_CLOSE_H, IDR_TAB_CLOSE); g_signal_connect(G_OBJECT(button->widget()), "clicked", G_CALLBACK(OnCloseButtonClicked), this); g_signal_connect(G_OBJECT(button->widget()), "button-release-event", G_CALLBACK(OnCloseButtonMouseRelease), this); g_signal_connect(G_OBJECT(button->widget()), "enter-notify-event", G_CALLBACK(OnEnterNotifyEvent), this); g_signal_connect(G_OBJECT(button->widget()), "leave-notify-event", G_CALLBACK(OnLeaveNotifyEvent), this); GTK_WIDGET_UNSET_FLAGS(button->widget(), GTK_CAN_FOCUS); gtk_fixed_put(GTK_FIXED(tab_.get()), button->widget(), 0, 0); return button; } void TabRendererGtk::CloseButtonClicked() { // Nothing to do. } // static void TabRendererGtk::OnCloseButtonClicked(GtkWidget* widget, TabRendererGtk* tab) { tab->CloseButtonClicked(); } // static gboolean TabRendererGtk::OnCloseButtonMouseRelease(GtkWidget* widget, GdkEventButton* event, TabRendererGtk* tab) { if (event->button == 2) { tab->CloseButtonClicked(); return TRUE; } return FALSE; } // static gboolean TabRendererGtk::OnExposeEvent(GtkWidget* widget, GdkEventExpose* event, TabRendererGtk* tab) { tab->PaintTab(event); gtk_container_propagate_expose(GTK_CONTAINER(tab->tab_.get()), tab->close_button_->widget(), event); return TRUE; } // static void TabRendererGtk::OnSizeAllocate(GtkWidget* widget, GtkAllocation* allocation, TabRendererGtk* tab) { gfx::Rect bounds = gfx::Rect(allocation->x, allocation->y, allocation->width, allocation->height); // Nothing to do if the bounds are the same. If we don't catch this, we'll // get an infinite loop of size-allocate signals. if (tab->bounds_ == bounds) return; tab->bounds_ = bounds; tab->Layout(); } // static gboolean TabRendererGtk::OnEnterNotifyEvent(GtkWidget* widget, GdkEventCrossing* event, TabRendererGtk* tab) { tab->hover_animation_->SetTweenType(SlideAnimation::EASE_OUT); tab->hover_animation_->Show(); return FALSE; } // static gboolean TabRendererGtk::OnLeaveNotifyEvent(GtkWidget* widget, GdkEventCrossing* event, TabRendererGtk* tab) { tab->hover_animation_->SetTweenType(SlideAnimation::EASE_IN); tab->hover_animation_->Hide(); return FALSE; } // static void TabRendererGtk::InitResources() { if (initialized_) return; LoadTabImages(); ResourceBundle& rb = ResourceBundle::GetSharedInstance(); // Force the font size to 8pt. gfx::Font base_font = rb.GetFont(ResourceBundle::BaseFont); title_font_ = new gfx::Font(gfx::Font::CreateFont(base_font.FontName(), 8)); title_font_height_ = title_font_->height(); crashed_fav_icon = rb.GetBitmapNamed(IDR_SAD_FAVICON); initialized_ = true; }