| // 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. |
| |
| #define _USE_MATH_DEFINES // For VC++ to get M_PI. This has to be first. |
| |
| #include "chrome/browser/download/download_shelf.h" |
| |
| #include <cmath> |
| |
| #include "base/bind.h" |
| #include "base/callback.h" |
| #include "base/location.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| #include "base/time/time.h" |
| #include "cc/paint/paint_flags.h" |
| #include "chrome/browser/download/download_item_model.h" |
| #include "chrome/browser/download/download_service.h" |
| #include "chrome/browser/download/download_service_factory.h" |
| #include "chrome/browser/download/download_started_animation.h" |
| #include "chrome/browser/platform_util.h" |
| #include "chrome/browser/profiles/profile.h" |
| #include "chrome/browser/themes/theme_properties.h" |
| #include "chrome/browser/ui/browser.h" |
| #include "chrome/browser/ui/tabs/tab_strip_model.h" |
| #include "content/public/browser/browser_context.h" |
| #include "content/public/browser/download_item.h" |
| #include "content/public/browser/download_manager.h" |
| #include "content/public/browser/web_contents.h" |
| #include "third_party/skia/include/core/SkPath.h" |
| #include "ui/base/resource/resource_bundle.h" |
| #include "ui/base/theme_provider.h" |
| #include "ui/gfx/animation/animation.h" |
| #include "ui/gfx/canvas.h" |
| |
| using content::DownloadItem; |
| |
| namespace { |
| |
| // Delay before we show a transient download. |
| const int64_t kDownloadShowDelayInSeconds = 2; |
| |
| // Get the opacity based on |animation_progress|, with values in [0.0, 1.0]. |
| // Range of return value is [0, 255]. |
| int GetOpacity(double animation_progress) { |
| DCHECK(animation_progress >= 0 && animation_progress <= 1); |
| |
| // How many times to cycle the complete animation. This should be an odd |
| // number so that the animation ends faded out. |
| static const int kCompleteAnimationCycles = 5; |
| double temp = animation_progress * kCompleteAnimationCycles * M_PI + M_PI_2; |
| temp = sin(temp) / 2 + 0.5; |
| return static_cast<int>(255.0 * temp); |
| } |
| |
| } // namespace |
| |
| DownloadShelf::DownloadShelf() |
| : should_show_on_unhide_(false), |
| is_hidden_(false), |
| weak_ptr_factory_(this) { |
| } |
| |
| DownloadShelf::~DownloadShelf() {} |
| |
| // Download progress painting -------------------------------------------------- |
| |
| // static |
| void DownloadShelf::PaintDownloadProgress( |
| gfx::Canvas* canvas, |
| const ui::ThemeProvider& theme_provider, |
| const base::TimeDelta& progress_time, |
| int percent_done) { |
| // Draw background (light blue circle). |
| cc::PaintFlags bg_flags; |
| bg_flags.setStyle(cc::PaintFlags::kFill_Style); |
| SkColor indicator_color = |
| theme_provider.GetColor(ThemeProperties::COLOR_TAB_THROBBER_SPINNING); |
| bg_flags.setColor(SkColorSetA(indicator_color, 0x33)); |
| bg_flags.setAntiAlias(true); |
| const SkScalar kCenterPoint = kProgressIndicatorSize / 2.f; |
| SkPath bg; |
| bg.addCircle(kCenterPoint, kCenterPoint, kCenterPoint); |
| canvas->DrawPath(bg, bg_flags); |
| |
| // Calculate progress. |
| SkScalar sweep_angle = 0.f; |
| // Start at 12 o'clock. |
| SkScalar start_pos = SkIntToScalar(270); |
| if (percent_done < 0) { |
| // For unknown size downloads, draw a 50 degree sweep that moves at |
| // 0.08 degrees per millisecond. |
| sweep_angle = 50.f; |
| start_pos += static_cast<SkScalar>(progress_time.InMilliseconds() * 0.08); |
| } else if (percent_done > 0) { |
| sweep_angle = static_cast<SkScalar>(360 * percent_done / 100.0); |
| } |
| |
| // Draw progress. |
| SkPath progress; |
| progress.addArc( |
| SkRect::MakeLTRB(0, 0, kProgressIndicatorSize, kProgressIndicatorSize), |
| start_pos, sweep_angle); |
| cc::PaintFlags progress_flags; |
| progress_flags.setColor(indicator_color); |
| progress_flags.setStyle(cc::PaintFlags::kStroke_Style); |
| progress_flags.setStrokeWidth(1.7f); |
| progress_flags.setAntiAlias(true); |
| canvas->DrawPath(progress, progress_flags); |
| } |
| |
| // static |
| void DownloadShelf::PaintDownloadComplete( |
| gfx::Canvas* canvas, |
| const ui::ThemeProvider& theme_provider, |
| double animation_progress) { |
| // Start at full opacity, then loop back and forth five times before ending |
| // at zero opacity. |
| canvas->SaveLayerAlpha(GetOpacity(animation_progress)); |
| PaintDownloadProgress(canvas, theme_provider, base::TimeDelta(), 100); |
| canvas->Restore(); |
| } |
| |
| // static |
| void DownloadShelf::PaintDownloadInterrupted( |
| gfx::Canvas* canvas, |
| const ui::ThemeProvider& theme_provider, |
| double animation_progress) { |
| // Start at zero opacity, then loop back and forth five times before ending |
| // at full opacity. |
| PaintDownloadComplete(canvas, theme_provider, 1.0 - animation_progress); |
| } |
| |
| void DownloadShelf::AddDownload(DownloadItem* download) { |
| DCHECK(download); |
| if (DownloadItemModel(download).ShouldRemoveFromShelfWhenComplete()) { |
| // If we are going to remove the download from the shelf upon completion, |
| // wait a few seconds to see if it completes quickly. If it's a small |
| // download, then the user won't have time to interact with it. |
| base::ThreadTaskRunnerHandle::Get()->PostDelayedTask( |
| FROM_HERE, |
| base::Bind(&DownloadShelf::ShowDownloadById, |
| weak_ptr_factory_.GetWeakPtr(), download->GetId()), |
| GetTransientDownloadShowDelay()); |
| } else { |
| ShowDownload(download); |
| } |
| } |
| |
| void DownloadShelf::Open() { |
| if (is_hidden_) { |
| should_show_on_unhide_ = true; |
| return; |
| } |
| DoOpen(); |
| } |
| |
| void DownloadShelf::Close(CloseReason reason) { |
| if (is_hidden_) { |
| should_show_on_unhide_ = false; |
| return; |
| } |
| DoClose(reason); |
| } |
| |
| void DownloadShelf::Hide() { |
| if (is_hidden_) |
| return; |
| is_hidden_ = true; |
| if (IsShowing()) { |
| should_show_on_unhide_ = true; |
| DoHide(); |
| } |
| } |
| |
| void DownloadShelf::Unhide() { |
| if (!is_hidden_) |
| return; |
| is_hidden_ = false; |
| if (should_show_on_unhide_) { |
| should_show_on_unhide_ = false; |
| DoUnhide(); |
| } |
| } |
| |
| base::TimeDelta DownloadShelf::GetTransientDownloadShowDelay() { |
| return base::TimeDelta::FromSeconds(kDownloadShowDelayInSeconds); |
| } |
| |
| content::DownloadManager* DownloadShelf::GetDownloadManager() { |
| return content::BrowserContext::GetDownloadManager(browser()->profile()); |
| } |
| |
| void DownloadShelf::ShowDownload(DownloadItem* download) { |
| if (download->GetState() == DownloadItem::COMPLETE && |
| DownloadItemModel(download).ShouldRemoveFromShelfWhenComplete()) |
| return; |
| if (!DownloadServiceFactory::GetForBrowserContext( |
| download->GetBrowserContext())->IsShelfEnabled()) |
| return; |
| |
| if (is_hidden_) |
| Unhide(); |
| Open(); |
| DoAddDownload(download); |
| |
| // browser() can be NULL for tests. |
| if (!browser()) |
| return; |
| |
| // Show the download started animation if: |
| // - Download started animation is enabled for this download. It is disabled |
| // for "Save As" downloads and extension installs, for example. |
| // - The browser has an active visible WebContents. (browser isn't minimized, |
| // or running under a test etc.) |
| // - Rich animations are enabled. |
| content::WebContents* shelf_tab = |
| browser()->tab_strip_model()->GetActiveWebContents(); |
| if (DownloadItemModel(download).ShouldShowDownloadStartedAnimation() && |
| shelf_tab && |
| platform_util::IsVisible(shelf_tab->GetNativeView()) && |
| gfx::Animation::ShouldRenderRichAnimation()) { |
| DownloadStartedAnimation::Show(shelf_tab); |
| } |
| } |
| |
| void DownloadShelf::ShowDownloadById(int32_t download_id) { |
| content::DownloadManager* download_manager = GetDownloadManager(); |
| if (!download_manager) |
| return; |
| |
| DownloadItem* download = download_manager->GetDownload(download_id); |
| if (!download) |
| return; |
| |
| ShowDownload(download); |
| } |