diff options
Diffstat (limited to 'chrome/browser/ui/cocoa/tabpose_window.mm')
| -rw-r--r-- | chrome/browser/ui/cocoa/tabpose_window.mm | 1664 |
1 files changed, 0 insertions, 1664 deletions
diff --git a/chrome/browser/ui/cocoa/tabpose_window.mm b/chrome/browser/ui/cocoa/tabpose_window.mm deleted file mode 100644 index f4cc4fc..0000000 --- a/chrome/browser/ui/cocoa/tabpose_window.mm +++ /dev/null @@ -1,1664 +0,0 @@ -// 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. - -#import "chrome/browser/ui/cocoa/tabpose_window.h" - -#import <QuartzCore/QuartzCore.h> - -#include <algorithm> - -#include "base/mac/mac_util.h" -#include "base/mac/scoped_cftyperef.h" -#include "base/memory/weak_ptr.h" -#include "base/prefs/pref_service.h" -#include "base/strings/sys_string_conversions.h" -#include "chrome/app/chrome_command_ids.h" -#include "chrome/browser/browser_process.h" -#include "chrome/browser/devtools/devtools_window.h" -#include "chrome/browser/extensions/tab_helper.h" -#include "chrome/browser/profiles/profile.h" -#include "chrome/browser/thumbnails/render_widget_snapshot_taker.h" -#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h" -#import "chrome/browser/ui/cocoa/bookmarks/bookmark_bar_constants.h" -#import "chrome/browser/ui/cocoa/browser_window_controller.h" -#import "chrome/browser/ui/cocoa/infobars/infobar_container_controller.h" -#import "chrome/browser/ui/cocoa/tab_contents/favicon_util_mac.h" -#import "chrome/browser/ui/cocoa/tabs/tab_strip_controller.h" -#import "chrome/browser/ui/cocoa/tabs/tab_strip_model_observer_bridge.h" -#include "chrome/common/pref_names.h" -#include "content/public/browser/browser_thread.h" -#include "content/public/browser/render_view_host.h" -#include "content/public/browser/render_widget_host_view.h" -#include "content/public/browser/web_contents.h" -#include "content/public/browser/web_contents_view.h" -#include "grit/theme_resources.h" -#include "grit/ui_resources.h" -#include "skia/ext/skia_utils_mac.h" -#include "third_party/skia/include/utils/mac/SkCGUtils.h" -#include "ui/base/cocoa/animation_utils.h" -#include "ui/base/resource/resource_bundle.h" -#include "ui/gfx/image/image.h" -#include "ui/gfx/scoped_cg_context_save_gstate_mac.h" - -using content::BrowserThread; -using content::RenderWidgetHost; - -// Height of the bottom gradient, in pixels. -const CGFloat kBottomGradientHeight = 50; - -// The shade of gray at the top of the window. There's a gradient from -// this to |kCentralGray| at the top of the window. -const CGFloat kTopGray = 0.77; - -// The shade of gray at the center of the window. Most of the window background -// has this color. -const CGFloat kCentralGray = 0.6; - -// The shade of gray at the bottom of the window. There's a gradient from -// |kCentralGray| to this at the bottom of the window, |kBottomGradientHeight| -// high. -const CGFloat kBottomGray = 0.5; - -NSString* const kAnimationIdKey = @"AnimationId"; -NSString* const kAnimationIdFadeIn = @"FadeIn"; -NSString* const kAnimationIdFadeOut = @"FadeOut"; - -const CGFloat kDefaultAnimationDuration = 0.25; // In seconds. -const CGFloat kSlomoFactor = 4; -const CGFloat kObserverChangeAnimationDuration = 0.25; // In seconds. -const CGFloat kSelectionInset = 5; - -// CAGradientLayer is 10.6-only -- roll our own. -@interface GrayGradientLayer : CALayer { - @private - CGFloat startGray_; - CGFloat endGray_; -} -- (id)initWithStartGray:(CGFloat)startGray endGray:(CGFloat)endGray; -- (void)drawInContext:(CGContextRef)context; -@end - -@implementation GrayGradientLayer -- (id)initWithStartGray:(CGFloat)startGray endGray:(CGFloat)endGray { - if ((self = [super init])) { - startGray_ = startGray; - endGray_ = endGray; - } - return self; -} - -- (void)drawInContext:(CGContextRef)context { - base::ScopedCFTypeRef<CGColorSpaceRef> grayColorSpace( - CGColorSpaceCreateWithName(kCGColorSpaceGenericGray)); - CGFloat grays[] = { startGray_, 1.0, endGray_, 1.0 }; - CGFloat locations[] = { 0, 1 }; - base::ScopedCFTypeRef<CGGradientRef> gradient( - CGGradientCreateWithColorComponents( - grayColorSpace.get(), grays, locations, arraysize(locations))); - CGPoint topLeft = CGPointMake(0.0, self.bounds.size.height); - CGContextDrawLinearGradient(context, gradient.get(), topLeft, CGPointZero, 0); -} -@end - -namespace tabpose { -class ThumbnailLoader; -} - -// A CALayer that draws a thumbnail for a WebContents object. The layer -// tries to draw the WebContents's backing store directly if possible, and -// requests a thumbnail bitmap from the WebContents's renderer process if not. -@interface ThumbnailLayer : CALayer { - // The WebContents the thumbnail is for. - content::WebContents* contents_; // weak - - // The size the thumbnail is drawn at when zoomed in. - NSSize fullSize_; - - // Used to load a thumbnail, if required. - scoped_refptr<tabpose::ThumbnailLoader> loader_; - - // If the backing store couldn't be used and a thumbnail was returned from a - // renderer process, it's stored in |thumbnail_|. - base::ScopedCFTypeRef<CGImageRef> thumbnail_; - - // True if the layer already sent a thumbnail request to a renderer. - BOOL didSendLoad_; -} -- (id)initWithWebContents:(content::WebContents*)contents - fullSize:(NSSize)fullSize; -- (void)drawInContext:(CGContextRef)context; -- (void)setThumbnail:(const SkBitmap&)bitmap; -@end - -namespace tabpose { - -// ThumbnailLoader talks to the renderer process to load a thumbnail of a given -// RenderWidgetHost, and sends the thumbnail back to a ThumbnailLayer once it -// comes back from the renderer. -class ThumbnailLoader : public base::RefCountedThreadSafe<ThumbnailLoader> { - public: - ThumbnailLoader(gfx::Size size, RenderWidgetHost* rwh, ThumbnailLayer* layer) - : size_(size), rwh_(rwh), layer_(layer), weak_factory_(this) {} - - // Starts the fetch. - void LoadThumbnail(); - - private: - friend class base::RefCountedThreadSafe<ThumbnailLoader>; - ~ThumbnailLoader() { - } - - void DidReceiveBitmap(const SkBitmap& bitmap) { - DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); - [layer_ setThumbnail:bitmap]; - } - - gfx::Size size_; - RenderWidgetHost* rwh_; // weak - ThumbnailLayer* layer_; // weak, owns us - base::WeakPtrFactory<ThumbnailLoader> weak_factory_; - - DISALLOW_COPY_AND_ASSIGN(ThumbnailLoader); -}; - -void ThumbnailLoader::LoadThumbnail() { - DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); - - // As mentioned in ThumbnailLayer's -drawInContext:, it's sufficient to have - // thumbnails at the zoomed-out pixel size for all but the thumbnail the user - // clicks on in the end. But we don't don't which thumbnail that will be, so - // keep it simple and request full thumbnails for everything. - // TODO(thakis): Request smaller thumbnails for users with many tabs. - gfx::Size page_size(size_); // Logical size the renderer renders at. - gfx::Size pixel_size(size_); // Physical pixel size the image is rendered at. - - // Will send an IPC to the renderer on the IO thread. - g_browser_process->GetRenderWidgetSnapshotTaker()->AskForSnapshot( - rwh_, - base::Bind(&ThumbnailLoader::DidReceiveBitmap, - weak_factory_.GetWeakPtr()), - page_size, - pixel_size); -} - -} // namespace tabpose - -@implementation ThumbnailLayer - -- (id)initWithWebContents:(content::WebContents*)contents - fullSize:(NSSize)fullSize { - CHECK(contents); - if ((self = [super init])) { - contents_ = contents; - fullSize_ = fullSize; - } - return self; -} - -- (void)setWebContents:(content::WebContents*)contents { - contents_ = contents; -} - -- (void)setThumbnail:(const SkBitmap&)bitmap { - // SkCreateCGImageRef() holds on to |bitmaps|'s memory, so this doesn't - // create a copy. The renderer always draws data in the system colorspace. - thumbnail_.reset(SkCreateCGImageRefWithColorspace( - bitmap, base::mac::GetSystemColorSpace())); - loader_ = NULL; - [self setNeedsDisplay]; -} - -- (int)topOffset { - int topOffset = 0; - - // Medium term, we want to show thumbs of the actual info bar views, which - // means I need to create InfoBarControllers here. - NSWindow* window = [contents_->GetView()->GetNativeView() window]; - NSWindowController* windowController = [window windowController]; - if ([windowController isKindOfClass:[BrowserWindowController class]]) { - BrowserWindowController* bwc = - static_cast<BrowserWindowController*>(windowController); - InfoBarContainerController* infoBarContainer = - [bwc infoBarContainerController]; - // TODO(thakis|rsesek): This is not correct for background tabs with - // infobars as the aspect ratio will be wrong. Fix that. - topOffset += NSHeight([[infoBarContainer view] frame]) - - [infoBarContainer overlappingTipHeight]; - } - - BookmarkTabHelper* bookmark_tab_helper = - BookmarkTabHelper::FromWebContents(contents_); - Profile* profile = - Profile::FromBrowserContext(contents_->GetBrowserContext()); - bool always_show_bookmark_bar = - profile->GetPrefs()->GetBoolean(prefs::kShowBookmarkBar); - bool has_detached_bookmark_bar = - bookmark_tab_helper->ShouldShowBookmarkBar() && - !always_show_bookmark_bar; - if (has_detached_bookmark_bar) - topOffset += chrome::kNTPBookmarkBarHeight; - - return topOffset; -} - -- (int)bottomOffset { - int bottomOffset = 0; - DevToolsWindow* devToolsWindow = - DevToolsWindow::GetDockedInstanceForInspectedTab(contents_); - content::WebContents* devToolsContents = - devToolsWindow ? devToolsWindow->web_contents() : NULL; - if (devToolsContents && devToolsContents->GetRenderViewHost() && - devToolsContents->GetRenderViewHost()->GetView()) { - // The devtool's size might not be up-to-date, but since its height doesn't - // change on window resize, and since most users don't use devtools, this is - // good enough. - bottomOffset += devToolsContents->GetRenderViewHost()->GetView()-> - GetViewBounds().height(); - bottomOffset += 1; // :-( Divider line between web contents and devtools. - } - return bottomOffset; -} - -- (void)drawInContext:(CGContextRef)context { - RenderWidgetHost* rwh = contents_->GetRenderViewHost(); - // NULL if renderer crashed. - content::RenderWidgetHostView* rwhv = rwh ? rwh->GetView() : NULL; - if (!rwhv) { - // TODO(thakis): Maybe draw a sad tab layer? - [super drawInContext:context]; - return; - } - - // The size of the WebContents's RenderWidgetHost might not fit to the - // current browser window at all, for example if the window was resized while - // this WebContents object was not an active tab. - // Compute the required size ourselves. Leave room for eventual infobars and - // a detached bookmarks bar on the top, and for the devtools on the bottom. - // Download shelf is not included in the |fullSize| rect, so no need to - // correct for it here. - // TODO(thakis): This is not resolution-independent. - int topOffset = [self topOffset]; - int bottomOffset = [self bottomOffset]; - gfx::Size desiredThumbSize(fullSize_.width, - fullSize_.height - topOffset - bottomOffset); - - // We need to ask the renderer for a thumbnail if - // a) there's no backing store or - // b) the backing store's size doesn't match our required size and - // c) we didn't already send a thumbnail request to the renderer. - bool draw_backing_store = rwh->GetBackingStoreSize() == desiredThumbSize; - - // Next weirdness: The destination rect. If the layer is |fullSize_| big, the - // destination rect is (0, bottomOffset), (fullSize_.width, topOffset). But we - // might be amidst an animation, so interpolate that rect. - CGRect destRect = [self bounds]; - CGFloat scale = destRect.size.width / fullSize_.width; - destRect.origin.y += bottomOffset * scale; - destRect.size.height -= (bottomOffset + topOffset) * scale; - - // TODO(thakis): Draw infobars, detached bookmark bar as well. - - // If we haven't already, sent a thumbnail request to the renderer. - if (!draw_backing_store && !didSendLoad_) { - // Either the tab was never visible, or its backing store got evicted, or - // the size of the backing store is wrong. - - // We only need a thumbnail the size of the zoomed-out layer for all - // layers except the one the user clicks on. But since we can't know which - // layer that is, request full-resolution layers for all tabs. This is - // simple and seems to work in practice. - loader_ = new tabpose::ThumbnailLoader(desiredThumbSize, rwh, self); - loader_->LoadThumbnail(); - didSendLoad_ = YES; - - // Fill with bg color. - [super drawInContext:context]; - } - - if (draw_backing_store) { - // Backing store 'cache' hit! - // TODO(thakis): Add a sublayer for each accelerated surface in the rwhv. - // Until then, accelerated layers (CoreAnimation NPAPI plugins, compositor) - // won't show up in tabpose. - rwh->CopyFromBackingStoreToCGContext(destRect, context); - } else if (thumbnail_) { - // No cache hit, but the renderer returned a thumbnail to us. - gfx::ScopedCGContextSaveGState save_gstate(context); - CGContextSetInterpolationQuality(context, kCGInterpolationHigh); - CGContextDrawImage(context, destRect, thumbnail_.get()); - } -} - -@end - -// Given the number |n| of tiles with a desired aspect ratio of |a| and a -// desired distance |dx|, |dy| between tiles, returns how many tiles fit -// vertically into a rectangle with the dimensions |w_c|, |h_c|. This returns -// an exact solution, which is usually a fractional number. -static float FitNRectsWithAspectIntoBoundingSizeWithConstantPadding( - int n, double a, int w_c, int h_c, int dx, int dy) { - // We want to have the small rects have the same aspect ratio a as a full - // tab. Let w, h be the size of a small rect, and w_c, h_c the size of the - // container. dx, dy are the distances between small rects in x, y direction. - - // Geometry yields: - // w_c = nx * (w + dx) - dx <=> w = (w_c + d_x) / nx - d_x - // h_c = ny * (h + dy) - dy <=> h = (h_c + d_y) / ny - d_t - // Plugging this into - // a := tab_width / tab_height = w / h - // yields - // a = ((w_c - (nx - 1)*d_x)*ny) / (nx*(h_c - (ny - 1)*d_y)) - // Plugging in nx = n/ny and pen and paper (or wolfram alpha: - // http://www.wolframalpha.com/input/?i=(-sqrt((d+n-a+f+n)^2-4+(a+f%2Ba+h)+(-d+n-n+w))%2Ba+f+n-d+n)/(2+a+(f%2Bh)) , (solution for nx) - // http://www.wolframalpha.com/input/?i=+(-sqrt((a+f+n-d+n)^2-4+(d%2Bw)+(-a+f+n-a+h+n))-a+f+n%2Bd+n)/(2+(d%2Bw)) , (solution for ny) - // ) gives us nx and ny (but the wrong root -- s/-sqrt(FOO)/sqrt(FOO)/. - - // This function returns ny. - return (sqrt(pow(n * (a * dy - dx), 2) + - 4 * n * a * (dx + w_c) * (dy + h_c)) - - n * (a * dy - dx)) - / - (2 * (dx + w_c)); -} - -namespace tabpose { - -CGFloat ScaleWithOrigin(CGFloat x, CGFloat origin, CGFloat scale) { - return (x - origin) * scale + origin; -} - -NSRect ScaleRectWithOrigin(NSRect r, NSPoint p, CGFloat scale) { - return NSMakeRect(ScaleWithOrigin(NSMinX(r), p.x, scale), - ScaleWithOrigin(NSMinY(r), p.y, scale), - NSWidth(r) * scale, - NSHeight(r) * scale); -} - -// A tile is what is shown for a single tab in tabpose mode. It consists of a -// title, favicon, thumbnail image, and pre- and postanimation rects. -class Tile { - public: - Tile() {} - - // Returns the rectangle this thumbnail is at at the beginning of the zoom-in - // animation. |tile| is the rectangle that's covering the whole tab area when - // the animation starts. - NSRect GetStartRectRelativeTo(const Tile& tile) const; - NSRect thumb_rect() const { return thumb_rect_; } - - NSRect GetFaviconStartRectRelativeTo(const Tile& tile) const; - NSRect favicon_rect() const { return NSIntegralRect(favicon_rect_); } - NSImage* favicon() const; - - // This changes |title_rect| and |favicon_rect| such that the favicon is on - // the font's baseline and that the minimum distance between thumb rect and - // favicon and title rects doesn't change. - // The view code - // 1. queries desired font size by calling |title_font_size()| - // 2. loads that font - // 3. calls |set_font_metrics()| which updates the title rect - // 4. receives the title rect and puts the title on it with the font from 2. - void set_font_metrics(CGFloat ascender, CGFloat descender); - CGFloat title_font_size() const { return title_font_size_; } - - NSRect GetTitleStartRectRelativeTo(const Tile& tile) const; - NSRect title_rect() const { return NSIntegralRect(title_rect_); } - - // Returns an unelided title. The view logic is responsible for eliding. - const base::string16& title() const { - return contents_->GetTitle(); - } - - content::WebContents* web_contents() const { return contents_; } - void set_tab_contents(content::WebContents* new_contents) { - contents_ = new_contents; - } - - private: - friend class TileSet; - - // The thumb rect includes infobars, detached thumbnail bar, web contents, - // and devtools. - NSRect thumb_rect_; - NSRect start_thumb_rect_; - - NSRect favicon_rect_; - - CGFloat title_font_size_; - NSRect title_rect_; - - content::WebContents* contents_; // weak - - DISALLOW_COPY_AND_ASSIGN(Tile); -}; - -NSRect Tile::GetStartRectRelativeTo(const Tile& tile) const { - NSRect rect = start_thumb_rect_; - rect.origin.x -= tile.start_thumb_rect_.origin.x; - rect.origin.y -= tile.start_thumb_rect_.origin.y; - return rect; -} - -NSRect Tile::GetFaviconStartRectRelativeTo(const Tile& tile) const { - NSRect thumb_start = GetStartRectRelativeTo(tile); - CGFloat scale_to_start = NSWidth(thumb_start) / NSWidth(thumb_rect_); - NSRect rect = - ScaleRectWithOrigin(favicon_rect_, thumb_rect_.origin, scale_to_start); - rect.origin.x += NSMinX(thumb_start) - NSMinX(thumb_rect_); - rect.origin.y += NSMinY(thumb_start) - NSMinY(thumb_rect_); - return rect; -} - -NSImage* Tile::favicon() const { - extensions::TabHelper* extensions_tab_helper = - extensions::TabHelper::FromWebContents(contents_); - if (extensions_tab_helper->is_app()) { - SkBitmap* bitmap = extensions_tab_helper->GetExtensionAppIcon(); - if (bitmap) - return gfx::SkBitmapToNSImage(*bitmap); - } - return mac::FaviconForWebContents(contents_); -} - -NSRect Tile::GetTitleStartRectRelativeTo(const Tile& tile) const { - NSRect thumb_start = GetStartRectRelativeTo(tile); - CGFloat scale_to_start = NSWidth(thumb_start) / NSWidth(thumb_rect_); - NSRect rect = - ScaleRectWithOrigin(title_rect_, thumb_rect_.origin, scale_to_start); - rect.origin.x += NSMinX(thumb_start) - NSMinX(thumb_rect_); - rect.origin.y += NSMinY(thumb_start) - NSMinY(thumb_rect_); - return rect; -} - -// Changes |title_rect| and |favicon_rect| such that the favicon's and the -// title's vertical center is aligned and that the minimum distance between -// the thumb rect and favicon and title rects doesn't change. -void Tile::set_font_metrics(CGFloat ascender, CGFloat descender) { - // Make the title height big enough to fit the font, and adopt the title - // position to keep its distance from the thumb rect. - title_rect_.origin.y -= ascender + descender - NSHeight(title_rect_); - title_rect_.size.height = ascender + descender; - - // Align vertical center. Both rects are currently aligned on their top edge. - CGFloat delta_y = NSMidY(title_rect_) - NSMidY(favicon_rect_); - if (delta_y > 0) { - // Title is higher: Move favicon down to align the centers. - favicon_rect_.origin.y += delta_y; - } else { - // Favicon is higher: Move title down to align the centers. - title_rect_.origin.y -= delta_y; - } -} - -// A tileset is responsible for owning and laying out all |Tile|s shown in a -// tabpose window. -class TileSet { - public: - TileSet() {} - - // Fills in |tiles_|. - void Build(TabStripModel* source_model); - - // Computes coordinates for |tiles_|. - void Layout(NSRect containing_rect); - - int selected_index() const { return selected_index_; } - void set_selected_index(int index); - - const Tile& selected_tile() const { return *tiles_[selected_index()]; } - Tile& tile_at(int index) { return *tiles_[index]; } - const Tile& tile_at(int index) const { return *tiles_[index]; } - - // These return which index needs to be selected when the user presses - // up, down, left, or right respectively. - int up_index() const; - int down_index() const; - int left_index() const; - int right_index() const; - - // These return which index needs to be selected on tab / shift-tab. - int next_index() const; - int previous_index() const; - - // Inserts a new Tile object containing |contents| at |index|. Does no - // relayout. - void InsertTileAt(int index, content::WebContents* contents); - - // Removes the Tile object at |index|. Does no relayout. - void RemoveTileAt(int index); - - // Moves the Tile object at |from_index| to |to_index|. Since this doesn't - // change the number of tiles, relayout can be done just by swapping the - // tile rectangles in the index interval [from_index, to_index], so this does - // layout. - void MoveTileFromTo(int from_index, int to_index); - - private: - int count_x() const { - return ceilf(tiles_.size() / static_cast<float>(count_y_)); - } - int count_y() const { - return count_y_; - } - int last_row_count_x() const { - return tiles_.size() - count_x() * (count_y() - 1); - } - int tiles_in_row(int row) const { - return row != count_y() - 1 ? count_x() : last_row_count_x(); - } - void index_to_tile_xy(int index, int* tile_x, int* tile_y) const { - *tile_x = index % count_x(); - *tile_y = index / count_x(); - } - int tile_xy_to_index(int tile_x, int tile_y) const { - return tile_y * count_x() + tile_x; - } - - ScopedVector<Tile> tiles_; - int selected_index_; - int count_y_; - - DISALLOW_COPY_AND_ASSIGN(TileSet); -}; - -void TileSet::Build(TabStripModel* source_model) { - selected_index_ = source_model->active_index(); - tiles_.resize(source_model->count()); - for (size_t i = 0; i < tiles_.size(); ++i) { - tiles_[i] = new Tile; - tiles_[i]->contents_ = source_model->GetWebContentsAt(i); - } -} - -void TileSet::Layout(NSRect containing_rect) { - int tile_count = tiles_.size(); - if (tile_count == 0) // Happens e.g. during test shutdown. - return; - - // Room around the tiles insde of |containing_rect|. - const int kSmallPaddingTop = 30; - const int kSmallPaddingLeft = 30; - const int kSmallPaddingRight = 30; - const int kSmallPaddingBottom = 30; - - // Favicon / title area. - const int kThumbTitlePaddingY = 6; - const int kFaviconSize = 16; - const int kTitleHeight = 14; // Font size. - const int kTitleExtraHeight = kThumbTitlePaddingY + kTitleHeight; - const int kFaviconExtraHeight = kThumbTitlePaddingY + kFaviconSize; - const int kFaviconTitleDistanceX = 6; - const int kFooterExtraHeight = - std::max(kFaviconExtraHeight, kTitleExtraHeight); - - // Room between the tiles. - const int kSmallPaddingX = 15; - const int kSmallPaddingY = kFooterExtraHeight; - - // Aspect ratio of the containing rect. - CGFloat aspect = NSWidth(containing_rect) / NSHeight(containing_rect); - - // Room left in container after the outer padding is removed. - double container_width = - NSWidth(containing_rect) - kSmallPaddingLeft - kSmallPaddingRight; - double container_height = - NSHeight(containing_rect) - kSmallPaddingTop - kSmallPaddingBottom; - - // The tricky part is figuring out the size of a tab thumbnail, or since the - // size of the containing rect is known, the number of tiles in x and y - // direction. - // Given are the size of the containing rect, and the number of thumbnails - // that need to fit into that rect. The aspect ratio of the thumbnails needs - // to be the same as that of |containing_rect|, else they will look distorted. - // The thumbnails need to be distributed such that - // |count_x * count_y >= tile_count|, and such that wasted space is minimized. - // See the comments in - // |FitNRectsWithAspectIntoBoundingSizeWithConstantPadding()| for a more - // detailed discussion. - // TODO(thakis): It might be good enough to choose |count_x| and |count_y| - // such that count_x / count_y is roughly equal to |aspect|? - double fny = FitNRectsWithAspectIntoBoundingSizeWithConstantPadding( - tile_count, aspect, - container_width, container_height - kFooterExtraHeight, - kSmallPaddingX, kSmallPaddingY + kFooterExtraHeight); - count_y_ = roundf(fny); - - // Now that |count_x()| and |count_y_| are known, it's straightforward to - // compute thumbnail width/height. See comment in - // |FitNRectsWithAspectIntoBoundingSizeWithConstantPadding| for the derivation - // of these two formulas. - int small_width = - floor((container_width + kSmallPaddingX) / static_cast<float>(count_x()) - - kSmallPaddingX); - int small_height = - floor((container_height + kSmallPaddingY) / static_cast<float>(count_y_) - - (kSmallPaddingY + kFooterExtraHeight)); - - // |small_width / small_height| has only roughly an aspect ratio of |aspect|. - // Shrink the thumbnail rect to make the aspect ratio fit exactly, and add - // the extra space won by shrinking to the outer padding. - int smallExtraPaddingLeft = 0; - int smallExtraPaddingTop = 0; - if (aspect > small_width/static_cast<float>(small_height)) { - small_height = small_width / aspect; - CGFloat all_tiles_height = - (small_height + kSmallPaddingY + kFooterExtraHeight) * count_y() - - (kSmallPaddingY + kFooterExtraHeight); - smallExtraPaddingTop = (container_height - all_tiles_height)/2; - } else { - small_width = small_height * aspect; - CGFloat all_tiles_width = - (small_width + kSmallPaddingX) * count_x() - kSmallPaddingX; - smallExtraPaddingLeft = (container_width - all_tiles_width)/2; - } - - // Compute inter-tile padding in the zoomed-out view. - CGFloat scale_small_to_big = - NSWidth(containing_rect) / static_cast<float>(small_width); - CGFloat big_padding_x = kSmallPaddingX * scale_small_to_big; - CGFloat big_padding_y = - (kSmallPaddingY + kFooterExtraHeight) * scale_small_to_big; - - // Now all dimensions are known. Lay out all tiles on a regular grid: - // X X X X - // X X X X - // X X - for (int row = 0, i = 0; i < tile_count; ++row) { - for (int col = 0; col < count_x() && i < tile_count; ++col, ++i) { - // Compute the smalled, zoomed-out thumbnail rect. - tiles_[i]->thumb_rect_.size = NSMakeSize(small_width, small_height); - - int small_x = col * (small_width + kSmallPaddingX) + - kSmallPaddingLeft + smallExtraPaddingLeft; - int small_y = row * (small_height + kSmallPaddingY + kFooterExtraHeight) + - kSmallPaddingTop + smallExtraPaddingTop; - - tiles_[i]->thumb_rect_.origin = NSMakePoint( - small_x, NSHeight(containing_rect) - small_y - small_height); - - tiles_[i]->favicon_rect_.size = NSMakeSize(kFaviconSize, kFaviconSize); - tiles_[i]->favicon_rect_.origin = NSMakePoint( - small_x, - NSHeight(containing_rect) - - (small_y + small_height + kFaviconExtraHeight)); - - // Align lower left corner of title rect with lower left corner of favicon - // for now. The final position is computed later by - // |Tile::set_font_metrics()|. - tiles_[i]->title_font_size_ = kTitleHeight; - tiles_[i]->title_rect_.origin = NSMakePoint( - NSMaxX(tiles_[i]->favicon_rect()) + kFaviconTitleDistanceX, - NSMinY(tiles_[i]->favicon_rect())); - tiles_[i]->title_rect_.size = NSMakeSize( - small_width - - NSWidth(tiles_[i]->favicon_rect()) - kFaviconTitleDistanceX, - kTitleHeight); - - // Compute the big, pre-zoom thumbnail rect. - tiles_[i]->start_thumb_rect_.size = containing_rect.size; - - int big_x = col * (NSWidth(containing_rect) + big_padding_x); - int big_y = row * (NSHeight(containing_rect) + big_padding_y); - tiles_[i]->start_thumb_rect_.origin = NSMakePoint(big_x, -big_y); - } - } -} - -void TileSet::set_selected_index(int index) { - CHECK_GE(index, 0); - CHECK_LT(index, static_cast<int>(tiles_.size())); - selected_index_ = index; -} - -// Given a |value| in [0, from_scale), map it into [0, to_scale) such that: -// * [0, from_scale) ends up in the middle of [0, to_scale) if the latter is -// a bigger range -// * The middle of [0, from_scale) is mapped to [0, to_scale), and the parts -// of the former that don't fit are mapped to 0 and to_scale - respectively -// if the former is a bigger range. -static int rescale(int value, int from_scale, int to_scale) { - int left = (to_scale - from_scale) / 2; - int result = value + left; - if (result < 0) - return 0; - if (result >= to_scale) - return to_scale - 1; - return result; -} - -int TileSet::up_index() const { - int tile_x, tile_y; - index_to_tile_xy(selected_index(), &tile_x, &tile_y); - tile_y -= 1; - if (tile_y == count_y() - 2) { - // Transition from last row to second-to-last row. - tile_x = rescale(tile_x, last_row_count_x(), count_x()); - } else if (tile_y < 0) { - // Transition from first row to last row. - tile_x = rescale(tile_x, count_x(), last_row_count_x()); - tile_y = count_y() - 1; - } - return tile_xy_to_index(tile_x, tile_y); -} - -int TileSet::down_index() const { - int tile_x, tile_y; - index_to_tile_xy(selected_index(), &tile_x, &tile_y); - tile_y += 1; - if (tile_y == count_y() - 1) { - // Transition from second-to-last row to last row. - tile_x = rescale(tile_x, count_x(), last_row_count_x()); - } else if (tile_y >= count_y()) { - // Transition from last row to first row. - tile_x = rescale(tile_x, last_row_count_x(), count_x()); - tile_y = 0; - } - return tile_xy_to_index(tile_x, tile_y); -} - -int TileSet::left_index() const { - int tile_x, tile_y; - index_to_tile_xy(selected_index(), &tile_x, &tile_y); - tile_x -= 1; - if (tile_x < 0) - tile_x = tiles_in_row(tile_y) - 1; - return tile_xy_to_index(tile_x, tile_y); -} - -int TileSet::right_index() const { - int tile_x, tile_y; - index_to_tile_xy(selected_index(), &tile_x, &tile_y); - tile_x += 1; - if (tile_x >= tiles_in_row(tile_y)) - tile_x = 0; - return tile_xy_to_index(tile_x, tile_y); -} - -int TileSet::next_index() const { - int new_index = selected_index() + 1; - if (new_index >= static_cast<int>(tiles_.size())) - new_index = 0; - return new_index; -} - -int TileSet::previous_index() const { - int new_index = selected_index() - 1; - if (new_index < 0) - new_index = tiles_.size() - 1; - return new_index; -} - -void TileSet::InsertTileAt(int index, content::WebContents* contents) { - tiles_.insert(tiles_.begin() + index, new Tile); - tiles_[index]->contents_ = contents; -} - -void TileSet::RemoveTileAt(int index) { - tiles_.erase(tiles_.begin() + index); -} - -// Moves the Tile object at |from_index| to |to_index|. Also updates rectangles -// so that the tiles stay in a left-to-right, top-to-bottom layout when walked -// in sequential order. -void TileSet::MoveTileFromTo(int from_index, int to_index) { - NSRect thumb = tiles_[from_index]->thumb_rect_; - NSRect start_thumb = tiles_[from_index]->start_thumb_rect_; - NSRect favicon = tiles_[from_index]->favicon_rect_; - NSRect title = tiles_[from_index]->title_rect_; - - scoped_ptr<Tile> tile(tiles_[from_index]); - tiles_.weak_erase(tiles_.begin() + from_index); - tiles_.insert(tiles_.begin() + to_index, tile.release()); - - int step = from_index < to_index ? -1 : 1; - for (int i = to_index; (i - from_index) * step < 0; i += step) { - tiles_[i]->thumb_rect_ = tiles_[i + step]->thumb_rect_; - tiles_[i]->start_thumb_rect_ = tiles_[i + step]->start_thumb_rect_; - tiles_[i]->favicon_rect_ = tiles_[i + step]->favicon_rect_; - tiles_[i]->title_rect_ = tiles_[i + step]->title_rect_; - } - tiles_[from_index]->thumb_rect_ = thumb; - tiles_[from_index]->start_thumb_rect_ = start_thumb; - tiles_[from_index]->favicon_rect_ = favicon; - tiles_[from_index]->title_rect_ = title; -} - -} // namespace tabpose - -void AnimateScaledCALayerFrameFromTo( - CALayer* layer, - const NSRect& from, CGFloat from_scale, - const NSRect& to, CGFloat to_scale, - NSTimeInterval duration, id boundsAnimationDelegate) { - // http://developer.apple.com/mac/library/qa/qa2008/qa1620.html - CABasicAnimation* animation; - - animation = [CABasicAnimation animationWithKeyPath:@"bounds"]; - animation.fromValue = [NSValue valueWithRect:from]; - animation.toValue = [NSValue valueWithRect:to]; - animation.duration = duration; - animation.timingFunction = - [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]; - animation.delegate = boundsAnimationDelegate; - - // Update the layer's bounds so the layer doesn't snap back when the animation - // completes. - layer.bounds = NSRectToCGRect(to); - - // Add the animation, overriding the implicit animation. - [layer addAnimation:animation forKey:@"bounds"]; - - // Prepare the animation from the current position to the new position. - NSPoint opoint = from.origin; - NSPoint point = to.origin; - - // Adapt to anchorPoint. - opoint.x += NSWidth(from) * from_scale * layer.anchorPoint.x; - opoint.y += NSHeight(from) * from_scale * layer.anchorPoint.y; - point.x += NSWidth(to) * to_scale * layer.anchorPoint.x; - point.y += NSHeight(to) * to_scale * layer.anchorPoint.y; - - animation = [CABasicAnimation animationWithKeyPath:@"position"]; - animation.fromValue = [NSValue valueWithPoint:opoint]; - animation.toValue = [NSValue valueWithPoint:point]; - animation.duration = duration; - animation.timingFunction = - [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]; - - // Update the layer's position so that the layer doesn't snap back when the - // animation completes. - layer.position = NSPointToCGPoint(point); - - // Add the animation, overriding the implicit animation. - [layer addAnimation:animation forKey:@"position"]; -} - -void AnimateCALayerFrameFromTo( - CALayer* layer, const NSRect& from, const NSRect& to, - NSTimeInterval duration, id boundsAnimationDelegate) { - AnimateScaledCALayerFrameFromTo( - layer, from, 1.0, to, 1.0, duration, boundsAnimationDelegate); -} - -void AnimateCALayerOpacityFromTo( - CALayer* layer, double from, double to, NSTimeInterval duration) { - CABasicAnimation* animation; - animation = [CABasicAnimation animationWithKeyPath:@"opacity"]; - animation.fromValue = [NSNumber numberWithFloat:from]; - animation.toValue = [NSNumber numberWithFloat:to]; - animation.duration = duration; - - layer.opacity = to; - // Add the animation, overriding the implicit animation. - [layer addAnimation:animation forKey:@"opacity"]; -} - -@interface TabposeWindow (Private) -- (id)initForWindow:(NSWindow*)parent - rect:(NSRect)rect - slomo:(BOOL)slomo - tabStripModel:(TabStripModel*)tabStripModel; - -// Creates and initializes the CALayer in the background and all the CALayers -// for the thumbnails, favicons, and titles. -- (void)setUpLayersInSlomo:(BOOL)slomo; - -// Tells the browser to make the tab corresponding to currently selected -// thumbnail the current tab and starts the tabpose exit animmation. -- (void)fadeAwayInSlomo:(BOOL)slomo; - -// Returns the CALayer for the close button belonging to the thumbnail at -// index |index|. -- (CALayer*)closebuttonLayerAtIndex:(NSUInteger)index; - -// Updates the visibility of all closebutton layers. -- (void)updateClosebuttonLayersVisibility; -@end - -@implementation TabposeWindow - -+ (id)openTabposeFor:(NSWindow*)parent - rect:(NSRect)rect - slomo:(BOOL)slomo - tabStripModel:(TabStripModel*)tabStripModel { - // Releases itself when closed. - return [[TabposeWindow alloc] - initForWindow:parent rect:rect slomo:slomo tabStripModel:tabStripModel]; -} - -- (id)initForWindow:(NSWindow*)parent - rect:(NSRect)rect - slomo:(BOOL)slomo - tabStripModel:(TabStripModel*)tabStripModel { - NSRect frame = [parent frame]; - if ((self = [super initWithContentRect:frame - styleMask:NSBorderlessWindowMask - backing:NSBackingStoreBuffered - defer:NO])) { - containingRect_ = rect; - tabStripModel_ = tabStripModel; - state_ = tabpose::kFadingIn; - tileSet_.reset(new tabpose::TileSet); - tabStripModelObserverBridge_.reset( - new TabStripModelObserverBridge(tabStripModel_, self)); - closeIcon_.reset([ResourceBundle::GetSharedInstance().GetNativeImageNamed( - IDR_TABPOSE_CLOSE).ToNSImage() retain]); - [self setReleasedWhenClosed:YES]; - [self setOpaque:NO]; - [self setBackgroundColor:[NSColor clearColor]]; - [self setUpLayersInSlomo:slomo]; - [self setAcceptsMouseMovedEvents:YES]; - [parent addChildWindow:self ordered:NSWindowAbove]; - [self makeKeyAndOrderFront:self]; - } - return self; -} - -- (CALayer*)selectedLayer { - return [allThumbnailLayers_ objectAtIndex:tileSet_->selected_index()]; -} - -- (void)selectTileAtIndexWithoutAnimation:(int)newIndex { - ScopedCAActionDisabler disabler; - const tabpose::Tile& tile = tileSet_->tile_at(newIndex); - selectionHighlight_.frame = - NSRectToCGRect(NSInsetRect(tile.thumb_rect(), - -kSelectionInset, -kSelectionInset)); - tileSet_->set_selected_index(newIndex); - - [self updateClosebuttonLayersVisibility]; -} - -- (void)addLayersForTile:(tabpose::Tile&)tile - showZoom:(BOOL)showZoom - slomo:(BOOL)slomo - animationDelegate:(id)animationDelegate { - base::scoped_nsobject<CALayer> layer( - [[ThumbnailLayer alloc] initWithWebContents:tile.web_contents() - fullSize:tile.GetStartRectRelativeTo( - tileSet_->selected_tile()).size]); - [layer setNeedsDisplay]; - - NSTimeInterval interval = - kDefaultAnimationDuration * (slomo ? kSlomoFactor : 1); - - // Background color as placeholder for now. - layer.get().backgroundColor = CGColorGetConstantColor(kCGColorWhite); - if (showZoom) { - AnimateCALayerFrameFromTo( - layer, - tile.GetStartRectRelativeTo(tileSet_->selected_tile()), - tile.thumb_rect(), - interval, - animationDelegate); - } else { - layer.get().frame = NSRectToCGRect(tile.thumb_rect()); - } - - layer.get().shadowRadius = 10; - layer.get().shadowOffset = CGSizeMake(0, -10); - if (state_ == tabpose::kFadedIn) - layer.get().shadowOpacity = 0.5; - - // Add a close button to the thumb layer. - CALayer* closeLayer = [CALayer layer]; - closeLayer.contents = closeIcon_.get(); - CGRect closeBounds = {}; - closeBounds.size = NSSizeToCGSize([closeIcon_ size]); - closeLayer.bounds = closeBounds; - closeLayer.hidden = YES; - - [closeLayer addConstraint: - [CAConstraint constraintWithAttribute:kCAConstraintMidX - relativeTo:@"superlayer" - attribute:kCAConstraintMinX]]; - [closeLayer addConstraint: - [CAConstraint constraintWithAttribute:kCAConstraintMidY - relativeTo:@"superlayer" - attribute:kCAConstraintMaxY]]; - - layer.get().layoutManager = [CAConstraintLayoutManager layoutManager]; - [layer.get() addSublayer:closeLayer]; - - [bgLayer_ addSublayer:layer]; - [allThumbnailLayers_ addObject:layer]; - - // Favicon and title. - NSFont* font = [NSFont systemFontOfSize:tile.title_font_size()]; - tile.set_font_metrics([font ascender], -[font descender]); - - CALayer* faviconLayer = [CALayer layer]; - if (showZoom) { - AnimateCALayerFrameFromTo( - faviconLayer, - tile.GetFaviconStartRectRelativeTo(tileSet_->selected_tile()), - tile.favicon_rect(), - interval, - nil); - AnimateCALayerOpacityFromTo(faviconLayer, 0.0, 1.0, interval); - } else { - faviconLayer.frame = NSRectToCGRect(tile.favicon_rect()); - } - faviconLayer.contents = tile.favicon(); - faviconLayer.zPosition = 1; // On top of the thumb shadow. - [bgLayer_ addSublayer:faviconLayer]; - [allFaviconLayers_ addObject:faviconLayer]; - - // CATextLayers can't animate their fontSize property, at least on 10.5. - // Animate transform.scale instead. - - // The scaling should have its origin in the layer's upper left corner. - // This needs to be set before |AnimateCALayerFrameFromTo()| is called. - CATextLayer* titleLayer = [CATextLayer layer]; - titleLayer.anchorPoint = CGPointMake(0, 1); - if (showZoom) { - NSRect fromRect = - tile.GetTitleStartRectRelativeTo(tileSet_->selected_tile()); - NSRect toRect = tile.title_rect(); - CGFloat scale = NSWidth(fromRect) / NSWidth(toRect); - fromRect.size = toRect.size; - - // Add scale animation. - CABasicAnimation* scaleAnimation = - [CABasicAnimation animationWithKeyPath:@"transform.scale"]; - scaleAnimation.fromValue = [NSNumber numberWithDouble:scale]; - scaleAnimation.toValue = [NSNumber numberWithDouble:1.0]; - scaleAnimation.duration = interval; - scaleAnimation.timingFunction = - [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut]; - [titleLayer addAnimation:scaleAnimation forKey:@"transform.scale"]; - - // Add the position and opacity animations. - AnimateScaledCALayerFrameFromTo( - titleLayer, fromRect, scale, toRect, 1.0, interval, nil); - AnimateCALayerOpacityFromTo(faviconLayer, 0.0, 1.0, interval); - } else { - titleLayer.frame = NSRectToCGRect(tile.title_rect()); - } - titleLayer.string = base::SysUTF16ToNSString(tile.title()); - titleLayer.fontSize = [font pointSize]; - titleLayer.truncationMode = kCATruncationEnd; - titleLayer.font = font; - titleLayer.zPosition = 1; // On top of the thumb shadow. - [bgLayer_ addSublayer:titleLayer]; - [allTitleLayers_ addObject:titleLayer]; -} - -- (void)setUpLayersInSlomo:(BOOL)slomo { - // Root layer -- covers whole window. - rootLayer_ = [CALayer layer]; - - // In a block so that the layers don't fade in. - { - ScopedCAActionDisabler disabler; - // Background layer -- the visible part of the window. - gray_.reset(CGColorCreateGenericGray(kCentralGray, 1.0)); - bgLayer_ = [CALayer layer]; - bgLayer_.backgroundColor = gray_; - bgLayer_.frame = NSRectToCGRect(containingRect_); - bgLayer_.masksToBounds = YES; - [rootLayer_ addSublayer:bgLayer_]; - - // Selection highlight layer. - darkBlue_.reset(CGColorCreateGenericRGB(0.25, 0.34, 0.86, 1.0)); - selectionHighlight_ = [CALayer layer]; - selectionHighlight_.backgroundColor = darkBlue_; - selectionHighlight_.cornerRadius = 5.0; - selectionHighlight_.zPosition = -1; // Behind other layers. - selectionHighlight_.hidden = YES; - [bgLayer_ addSublayer:selectionHighlight_]; - - // Bottom gradient. - CALayer* gradientLayer = [[[GrayGradientLayer alloc] - initWithStartGray:kCentralGray endGray:kBottomGray] autorelease]; - gradientLayer.frame = CGRectMake( - 0, - 0, - NSWidth(containingRect_), - kBottomGradientHeight); - [gradientLayer setNeedsDisplay]; // Draw once. - [bgLayer_ addSublayer:gradientLayer]; - } - // Top gradient (fades in). - CGFloat toolbarHeight = NSHeight([self frame]) - NSHeight(containingRect_); - topGradient_ = [[[GrayGradientLayer alloc] - initWithStartGray:kTopGray endGray:kCentralGray] autorelease]; - topGradient_.frame = CGRectMake( - 0, - NSHeight([self frame]) - toolbarHeight, - NSWidth(containingRect_), - toolbarHeight); - [topGradient_ setNeedsDisplay]; // Draw once. - [rootLayer_ addSublayer:topGradient_]; - NSTimeInterval interval = - kDefaultAnimationDuration * (slomo ? kSlomoFactor : 1); - AnimateCALayerOpacityFromTo(topGradient_, 0, 1, interval); - - // Layers for the tab thumbnails. - tileSet_->Build(tabStripModel_); - tileSet_->Layout(containingRect_); - allThumbnailLayers_.reset( - [[NSMutableArray alloc] initWithCapacity:tabStripModel_->count()]); - allFaviconLayers_.reset( - [[NSMutableArray alloc] initWithCapacity:tabStripModel_->count()]); - allTitleLayers_.reset( - [[NSMutableArray alloc] initWithCapacity:tabStripModel_->count()]); - - for (int i = 0; i < tabStripModel_->count(); ++i) { - // Add a delegate to one of the animations to get a notification once the - // animations are done. - [self addLayersForTile:tileSet_->tile_at(i) - showZoom:YES - slomo:slomo - animationDelegate:i == tileSet_->selected_index() ? self : nil]; - if (i == tileSet_->selected_index()) { - CALayer* layer = [allThumbnailLayers_ objectAtIndex:i]; - CAAnimation* animation = [layer animationForKey:@"bounds"]; - DCHECK(animation); - [animation setValue:kAnimationIdFadeIn forKey:kAnimationIdKey]; - } - } - [self selectTileAtIndexWithoutAnimation:tileSet_->selected_index()]; - - // Needs to happen after all layers have been added to |rootLayer_|, else - // there's a one frame flash of grey at the beginning of the animation - // (|bgLayer_| showing through with none of its children visible yet). - [[self contentView] setLayer:rootLayer_]; - [[self contentView] setWantsLayer:YES]; -} - -- (BOOL)canBecomeKeyWindow { - return YES; -} - -// Lets the traffic light buttons on the browser window keep their "active" -// state while an info bubble is open. Only has an effect on 10.7. -- (BOOL)_sharesParentKeyState { - return YES; -} - -// Handle key events that should be executed repeatedly while the key is down. -- (void)keyDown:(NSEvent*)event { - if (state_ == tabpose::kFadingOut) - return; - NSString* characters = [event characters]; - if ([characters length] < 1) - return; - - unichar character = [characters characterAtIndex:0]; - int newIndex = -1; - switch (character) { - case NSUpArrowFunctionKey: - newIndex = tileSet_->up_index(); - break; - case NSDownArrowFunctionKey: - newIndex = tileSet_->down_index(); - break; - case NSLeftArrowFunctionKey: - newIndex = tileSet_->left_index(); - break; - case NSRightArrowFunctionKey: - newIndex = tileSet_->right_index(); - break; - case NSTabCharacter: - newIndex = tileSet_->next_index(); - break; - case NSBackTabCharacter: - newIndex = tileSet_->previous_index(); - break; - } - if (newIndex != -1) - [self selectTileAtIndexWithoutAnimation:newIndex]; -} - -// Handle keyboard events that should be executed once when the key is released. -- (void)keyUp:(NSEvent*)event { - if (state_ == tabpose::kFadingOut) - return; - NSString* characters = [event characters]; - if ([characters length] < 1) - return; - - unichar character = [characters characterAtIndex:0]; - switch (character) { - case NSEnterCharacter: - case NSNewlineCharacter: - case NSCarriageReturnCharacter: - case ' ': - [self fadeAwayInSlomo:([event modifierFlags] & NSShiftKeyMask) != 0]; - break; - case '\e': // Escape - tileSet_->set_selected_index(tabStripModel_->active_index()); - [self fadeAwayInSlomo:([event modifierFlags] & NSShiftKeyMask) != 0]; - break; - } -} - -// Handle keyboard events that contain cmd or ctrl. -- (BOOL)performKeyEquivalent:(NSEvent*)event { - if (state_ == tabpose::kFadingOut) - return NO; - NSString* characters = [event characters]; - if ([characters length] < 1) - return NO; - unichar character = [characters characterAtIndex:0]; - if ([event modifierFlags] & NSCommandKeyMask) { - if (character >= '1' && character <= '9') { - int index = - character == '9' ? tabStripModel_->count() - 1 : character - '1'; - if (index < tabStripModel_->count()) { - tileSet_->set_selected_index(index); - [self fadeAwayInSlomo:([event modifierFlags] & NSShiftKeyMask) != 0]; - return YES; - } - } - } - return NO; -} - -- (void)flagsChanged:(NSEvent*)event { - showAllCloseLayers_ = ([event modifierFlags] & NSAlternateKeyMask) != 0; - [self updateClosebuttonLayersVisibility]; -} - -- (void)selectTileFromMouseEvent:(NSEvent*)event { - int newIndex = -1; - CGPoint p = NSPointToCGPoint([event locationInWindow]); - for (NSUInteger i = 0; i < [allThumbnailLayers_ count]; ++i) { - CALayer* layer = [allThumbnailLayers_ objectAtIndex:i]; - CGPoint lp = [layer convertPoint:p fromLayer:rootLayer_]; - if ([static_cast<CALayer*>([layer presentationLayer]) containsPoint:lp]) - newIndex = i; - } - if (newIndex >= 0) - [self selectTileAtIndexWithoutAnimation:newIndex]; -} - -- (void)mouseMoved:(NSEvent*)event { - [self selectTileFromMouseEvent:event]; -} - -- (CALayer*)closebuttonLayerAtIndex:(NSUInteger)index { - CALayer* layer = [allThumbnailLayers_ objectAtIndex:index]; - return [[layer sublayers] objectAtIndex:0]; -} - -- (void)updateClosebuttonLayersVisibility { - for (NSUInteger i = 0; i < [allThumbnailLayers_ count]; ++i) { - CALayer* layer = [self closebuttonLayerAtIndex:i]; - BOOL isSelectedTile = static_cast<int>(i) == tileSet_->selected_index(); - BOOL isVisible = state_ == tabpose::kFadedIn && - (isSelectedTile || showAllCloseLayers_); - layer.hidden = !isVisible; - } -} - -- (void)mouseDown:(NSEvent*)event { - // Just in case the user clicked without ever moving the mouse. - [self selectTileFromMouseEvent:event]; - - // If the click occurred in a close box, close that tab and don't do anything - // else. - CGPoint p = NSPointToCGPoint([event locationInWindow]); - for (NSUInteger i = 0; i < [allThumbnailLayers_ count]; ++i) { - CALayer* layer = [self closebuttonLayerAtIndex:i]; - CGPoint lp = [layer convertPoint:p fromLayer:rootLayer_]; - if ([static_cast<CALayer*>([layer presentationLayer]) containsPoint:lp] && - !layer.hidden) { - tabStripModel_->CloseWebContentsAt(i, - TabStripModel::CLOSE_USER_GESTURE | - TabStripModel::CLOSE_CREATE_HISTORICAL_TAB); - return; - } - } - - [self fadeAwayInSlomo:([event modifierFlags] & NSShiftKeyMask) != 0]; -} - -- (void)swipeWithEvent:(NSEvent*)event { - if (abs([event deltaY]) > 0.5) // Swipe up or down. - [self fadeAwayInSlomo:([event modifierFlags] & NSShiftKeyMask) != 0]; -} - -- (void)close { - // Prevent parent window from disappearing. - [[self parentWindow] removeChildWindow:self]; - - // We're dealloc'd in an autorelease pool – by then the observer registry - // might be dead, so explicitly reset the observer now. - tabStripModelObserverBridge_.reset(); - - [super close]; -} - -- (void)commandDispatch:(id)sender { - if ([sender tag] == IDC_TABPOSE) - [self fadeAwayInSlomo:NO]; -} - -- (BOOL)validateUserInterfaceItem:(id<NSValidatedUserInterfaceItem>)item { - // Disable all browser-related menu items except the tab overview toggle. - SEL action = [item action]; - NSInteger tag = [item tag]; - return action == @selector(commandDispatch:) && tag == IDC_TABPOSE; -} - -- (void)fadeAwayTileAtIndex:(int)index { - const tabpose::Tile& tile = tileSet_->tile_at(index); - CALayer* layer = [allThumbnailLayers_ objectAtIndex:index]; - // Add a delegate to one of the implicit animations to get a notification - // once the animations are done. - if (static_cast<int>(index) == tileSet_->selected_index()) { - CAAnimation* animation = [CAAnimation animation]; - animation.delegate = self; - [animation setValue:kAnimationIdFadeOut forKey:kAnimationIdKey]; - [layer addAnimation:animation forKey:@"frame"]; - } - - // Thumbnail. - layer.frame = NSRectToCGRect( - tile.GetStartRectRelativeTo(tileSet_->selected_tile())); - - if (static_cast<int>(index) == tileSet_->selected_index()) { - // Redraw layer at big resolution, so that zoom-in isn't blocky. - [layer setNeedsDisplay]; - } - - // Title. - CALayer* faviconLayer = [allFaviconLayers_ objectAtIndex:index]; - faviconLayer.frame = NSRectToCGRect( - tile.GetFaviconStartRectRelativeTo(tileSet_->selected_tile())); - faviconLayer.opacity = 0; - - // Favicon. - // The |fontSize| cannot be animated directly, animate the layer's scale - // instead. |transform.scale| affects the rendered width, so keep the small - // bounds. - CALayer* titleLayer = [allTitleLayers_ objectAtIndex:index]; - NSRect titleRect = tile.title_rect(); - NSRect titleToRect = - tile.GetTitleStartRectRelativeTo(tileSet_->selected_tile()); - CGFloat scale = NSWidth(titleToRect) / NSWidth(titleRect); - titleToRect.origin.x += - NSWidth(titleRect) * scale * titleLayer.anchorPoint.x; - titleToRect.origin.y += - NSHeight(titleRect) * scale * titleLayer.anchorPoint.y; - titleLayer.position = NSPointToCGPoint(titleToRect.origin); - [titleLayer setValue:[NSNumber numberWithDouble:scale] - forKeyPath:@"transform.scale"]; - titleLayer.opacity = 0; -} - -- (void)fadeAwayInSlomo:(BOOL)slomo { - if (state_ == tabpose::kFadingOut) - return; - - state_ = tabpose::kFadingOut; - [self setAcceptsMouseMovedEvents:NO]; - - // Select chosen tab. - if (tileSet_->selected_index() < tabStripModel_->count()) { - tabStripModel_->ActivateTabAt(tileSet_->selected_index(), - /*user_gesture=*/true); - } else { - DCHECK_EQ(tileSet_->selected_index(), 0); - } - - { - ScopedCAActionDisabler disableCAActions; - - // Move the selected layer on top of all other layers. - [self selectedLayer].zPosition = 1; - - selectionHighlight_.hidden = YES; - // Running animations with shadows is slow, so turn shadows off before - // running the exit animation. - for (CALayer* layer in allThumbnailLayers_.get()) - layer.shadowOpacity = 0.0; - - [self updateClosebuttonLayersVisibility]; - } - - // Animate layers out, all in one transaction. - CGFloat duration = - 1.3 * kDefaultAnimationDuration * (slomo ? kSlomoFactor : 1); - ScopedCAActionSetDuration durationSetter(duration); - for (int i = 0; i < tabStripModel_->count(); ++i) - [self fadeAwayTileAtIndex:i]; - AnimateCALayerOpacityFromTo(topGradient_, 1, 0, duration); -} - -- (void)animationDidStop:(CAAnimation*)animation finished:(BOOL)finished { - NSString* animationId = [animation valueForKey:kAnimationIdKey]; - if ([animationId isEqualToString:kAnimationIdFadeIn]) { - if (finished && state_ == tabpose::kFadingIn) { - // If the user clicks while the fade in animation is still running, - // |state_| is already kFadingOut. In that case, don't do anything. - state_ = tabpose::kFadedIn; - - selectionHighlight_.hidden = NO; - - // Running animations with shadows is slow, so turn shadows on only after - // the animation is done. - ScopedCAActionDisabler disableCAActions; - for (CALayer* layer in allThumbnailLayers_.get()) - layer.shadowOpacity = 0.5; - - [self updateClosebuttonLayersVisibility]; - } - } else if ([animationId isEqualToString:kAnimationIdFadeOut]) { - DCHECK_EQ(tabpose::kFadingOut, state_); - [self close]; - } -} - -- (NSUInteger)thumbnailLayerCount { - return [allThumbnailLayers_ count]; -} - -- (int)selectedIndex { - return tileSet_->selected_index(); -} - -#pragma mark TabStripModelBridge - -- (void)refreshLayerFramesAtIndex:(int)i { - const tabpose::Tile& tile = tileSet_->tile_at(i); - - CALayer* thumbLayer = [allThumbnailLayers_ objectAtIndex:i]; - - if (i == tileSet_->selected_index()) { - AnimateCALayerFrameFromTo( - selectionHighlight_, - NSInsetRect(NSRectFromCGRect(thumbLayer.frame), - -kSelectionInset, -kSelectionInset), - NSInsetRect(tile.thumb_rect(), - -kSelectionInset, -kSelectionInset), - kObserverChangeAnimationDuration, - nil); - } - - // Repaint layer if necessary. - if (!NSEqualSizes(NSRectFromCGRect(thumbLayer.frame).size, - tile.thumb_rect().size)) { - [thumbLayer setNeedsDisplay]; - } - - // Use AnimateCALayerFrameFromTo() instead of just setting |frame| to let - // the animation match the selection animation -- - // |kCAMediaTimingFunctionDefault| is 10.6-only. - AnimateCALayerFrameFromTo( - thumbLayer, - NSRectFromCGRect(thumbLayer.frame), - tile.thumb_rect(), - kObserverChangeAnimationDuration, - nil); - - CALayer* faviconLayer = [allFaviconLayers_ objectAtIndex:i]; - AnimateCALayerFrameFromTo( - faviconLayer, - NSRectFromCGRect(faviconLayer.frame), - tile.favicon_rect(), - kObserverChangeAnimationDuration, - nil); - - CALayer* titleLayer = [allTitleLayers_ objectAtIndex:i]; - AnimateCALayerFrameFromTo( - titleLayer, - NSRectFromCGRect(titleLayer.frame), - tile.title_rect(), - kObserverChangeAnimationDuration, - nil); -} - -- (void)insertTabWithContents:(content::WebContents*)contents - atIndex:(NSInteger)index - inForeground:(bool)inForeground { - // This happens if you cmd-click a link and then immediately open tabpose - // on a slowish machine. - ScopedCAActionSetDuration durationSetter(kObserverChangeAnimationDuration); - - // Insert new layer and relayout. - tileSet_->InsertTileAt(index, contents); - tileSet_->Layout(containingRect_); - [self addLayersForTile:tileSet_->tile_at(index) - showZoom:NO - slomo:NO - animationDelegate:nil]; - - // Update old layers. - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allThumbnailLayers_ count])); - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allTitleLayers_ count])); - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allFaviconLayers_ count])); - - // Update selection. - int selectedIndex = tileSet_->selected_index(); - if (selectedIndex >= index) - selectedIndex++; - [self selectTileAtIndexWithoutAnimation:selectedIndex]; - - // Animate everything into its new place. - for (int i = 0; i < tabStripModel_->count(); ++i) { - if (i == index) // The new layer. - continue; - [self refreshLayerFramesAtIndex:i]; - } -} - -- (void)tabClosingWithContents:(content::WebContents*)contents - atIndex:(NSInteger)index { - // We will also get a -tabDetachedWithContents:atIndex: notification for - // closing tabs, so do nothing here. -} - -- (void)tabDetachedWithContents:(content::WebContents*)contents - atIndex:(NSInteger)index { - ScopedCAActionSetDuration durationSetter(kObserverChangeAnimationDuration); - - // Remove layer and relayout. - tileSet_->RemoveTileAt(index); - tileSet_->Layout(containingRect_); - - { - ScopedCAActionDisabler disabler; - [[allThumbnailLayers_ objectAtIndex:index] removeFromSuperlayer]; - [allThumbnailLayers_ removeObjectAtIndex:index]; - [[allTitleLayers_ objectAtIndex:index] removeFromSuperlayer]; - [allTitleLayers_ removeObjectAtIndex:index]; - [[allFaviconLayers_ objectAtIndex:index] removeFromSuperlayer]; - [allFaviconLayers_ removeObjectAtIndex:index]; - } - - // Update old layers. - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allThumbnailLayers_ count])); - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allTitleLayers_ count])); - DCHECK_EQ(tabStripModel_->count(), - static_cast<int>([allFaviconLayers_ count])); - - if (tabStripModel_->count() == 0) - [self close]; - - // Update selection. - int selectedIndex = tileSet_->selected_index(); - if (selectedIndex > index || selectedIndex >= tabStripModel_->count()) - selectedIndex--; - if (selectedIndex >= 0) - [self selectTileAtIndexWithoutAnimation:selectedIndex]; - - // Animate everything into its new place. - for (int i = 0; i < tabStripModel_->count(); ++i) - [self refreshLayerFramesAtIndex:i]; -} - -- (void)tabMovedWithContents:(content::WebContents*)contents - fromIndex:(NSInteger)from - toIndex:(NSInteger)to { - ScopedCAActionSetDuration durationSetter(kObserverChangeAnimationDuration); - - // Move tile from |from| to |to|. - tileSet_->MoveTileFromTo(from, to); - - // Move corresponding layers from |from| to |to|. - base::scoped_nsobject<CALayer> thumbLayer( - [[allThumbnailLayers_ objectAtIndex:from] retain]); - [allThumbnailLayers_ removeObjectAtIndex:from]; - [allThumbnailLayers_ insertObject:thumbLayer.get() atIndex:to]; - base::scoped_nsobject<CALayer> faviconLayer( - [[allFaviconLayers_ objectAtIndex:from] retain]); - [allFaviconLayers_ removeObjectAtIndex:from]; - [allFaviconLayers_ insertObject:faviconLayer.get() atIndex:to]; - base::scoped_nsobject<CALayer> titleLayer( - [[allTitleLayers_ objectAtIndex:from] retain]); - [allTitleLayers_ removeObjectAtIndex:from]; - [allTitleLayers_ insertObject:titleLayer.get() atIndex:to]; - - // Update selection. - int selectedIndex = tileSet_->selected_index(); - if (from == selectedIndex) - selectedIndex = to; - else if (from < selectedIndex && selectedIndex <= to) - selectedIndex--; - else if (to <= selectedIndex && selectedIndex < from) - selectedIndex++; - [self selectTileAtIndexWithoutAnimation:selectedIndex]; - - // Update frames of the layers. - for (int i = std::min(from, to); i <= std::max(from, to); ++i) - [self refreshLayerFramesAtIndex:i]; -} - -- (void)tabChangedWithContents:(content::WebContents*)contents - atIndex:(NSInteger)index - changeType:(TabStripModelObserver::TabChangeType)change { - // Tell the window to update text, title, and thumb layers at |index| to get - // their data from |contents|. |contents| can be different from the old - // contents at that index! - // While a tab is loading, this is unfortunately called quite often for - // both the "loading" and the "all" change types, so we don't really want to - // send thumb requests to the corresponding renderer when this is called. - // For now, just make sure that we don't hold on to an invalid WebContents - // object. - tabpose::Tile& tile = tileSet_->tile_at(index); - if (contents == tile.web_contents()) { - // TODO(thakis): Install a timer to send a thumb request/update title/update - // favicon after 20ms or so, and reset the timer every time this is called - // to make sure we get an updated thumb, without requesting them all over. - return; - } - - tile.set_tab_contents(contents); - ThumbnailLayer* thumbLayer = [allThumbnailLayers_ objectAtIndex:index]; - [thumbLayer setWebContents:contents]; -} - -- (void)tabStripModelDeleted { - [self close]; -} - -@end |