blob: bb3fc05e0705abf8d9515a8fddb605faff61a480 [file] [log] [blame]
// 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.
#include "chrome/browser/ui/views/download/download_item_view.h"
#include <stddef.h>
#include <algorithm>
#include <vector>
#include "base/bind.h"
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/i18n/break_iterator.h"
#include "base/i18n/rtl.h"
#include "base/macros.h"
#include "base/metrics/histogram_macros.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/string_util.h"
#include "base/strings/sys_string_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "build/build_config.h"
#include "chrome/app/vector_icons/vector_icons.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/download/chrome_download_manager_delegate.h"
#include "chrome/browser/download/download_item_model.h"
#include "chrome/browser/download/download_stats.h"
#include "chrome/browser/download/drag_download_item.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/safe_browsing/download_protection/download_feedback_service.h"
#include "chrome/browser/safe_browsing/download_protection/download_protection_service.h"
#include "chrome/browser/safe_browsing/safe_browsing_service.h"
#include "chrome/browser/themes/theme_properties.h"
#include "chrome/browser/ui/views/download/download_shelf_context_menu_view.h"
#include "chrome/browser/ui/views/download/download_shelf_view.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/common/pref_names.h"
#include "chrome/grit/generated_resources.h"
#include "components/download/public/common/download_danger_type.h"
#include "components/prefs/pref_service.h"
#include "components/safe_browsing/common/safe_browsing_prefs.h"
#include "components/url_formatter/elide_url.h"
#include "components/vector_icons/vector_icons.h"
#include "content/public/browser/download_item_utils.h"
#include "third_party/icu/source/common/unicode/uchar.h"
#include "ui/accessibility/ax_node_data.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/l10n/time_format.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/base/text/bytes_formatting.h"
#include "ui/base/theme_provider.h"
#include "ui/events/event.h"
#include "ui/gfx/animation/slide_animation.h"
#include "ui/gfx/canvas.h"
#include "ui/gfx/color_palette.h"
#include "ui/gfx/color_utils.h"
#include "ui/gfx/image/image.h"
#include "ui/gfx/paint_vector_icon.h"
#include "ui/gfx/text_elider.h"
#include "ui/gfx/text_utils.h"
#include "ui/views/accessibility/view_accessibility.h"
#include "ui/views/animation/flood_fill_ink_drop_ripple.h"
#include "ui/views/animation/ink_drop_highlight.h"
#include "ui/views/animation/ink_drop_impl.h"
#include "ui/views/border.h"
#include "ui/views/controls/button/image_button.h"
#include "ui/views/controls/button/image_button_factory.h"
#include "ui/views/controls/button/md_text_button.h"
#include "ui/views/controls/label.h"
#include "ui/views/mouse_constants.h"
#include "ui/views/view_class_properties.h"
#include "ui/views/widget/root_view.h"
#include "ui/views/widget/widget.h"
using download::DownloadItem;
namespace {
// The vertical distance between the item's visual upper bound (as delineated
// by the separator on the right) and the edge of the shelf.
constexpr int kTopBottomPadding = 6;
// The minimum vertical padding above and below contents of the download item.
// This is only used when the text size is large.
constexpr int kMinimumVerticalPadding = 2 + kTopBottomPadding;
// The normal height of the item which may be exceeded if text is large.
constexpr int kDefaultHeight = 48;
// Amount of time between accessible alert events.
constexpr base::TimeDelta kAccessibleAlertInterval =
base::TimeDelta::FromSeconds(30);
// The separator is drawn as a border. It's one dp wide.
class SeparatorBorder : public views::Border {
public:
explicit SeparatorBorder(SkColor separator_color)
: separator_color_(separator_color) {}
~SeparatorBorder() override {}
void Paint(const views::View& view, gfx::Canvas* canvas) override {
// The FocusRing replaces the separator border when we have focus.
if (view.HasFocus())
return;
int end_x = base::i18n::IsRTL() ? 0 : view.width() - 1;
canvas->DrawLine(gfx::Point(end_x, kTopBottomPadding),
gfx::Point(end_x, view.height() - kTopBottomPadding),
separator_color_);
}
gfx::Insets GetInsets() const override { return gfx::Insets(0, 0, 0, 1); }
gfx::Size GetMinimumSize() const override {
return gfx::Size(1, 2 * kTopBottomPadding + 1);
}
private:
SkColor separator_color_;
DISALLOW_COPY_AND_ASSIGN(SeparatorBorder);
};
} // namespace
DownloadItemView::DownloadItemView(DownloadUIModel::DownloadUIModelPtr download,
DownloadShelfView* parent,
views::View* accessible_alert)
: shelf_(parent),
status_text_(l10n_util::GetStringUTF16(IDS_DOWNLOAD_STATUS_STARTING)),
dropdown_state_(NORMAL),
mode_(NORMAL_MODE),
dragging_(false),
starting_drag_(false),
model_(std::move(download)),
save_button_(nullptr),
discard_button_(nullptr),
dropdown_button_(views::CreateVectorImageButton(this)),
dangerous_download_label_(nullptr),
dangerous_download_label_sized_(false),
disabled_while_opening_(false),
creation_time_(base::Time::Now()),
time_download_warning_shown_(base::Time()),
accessible_alert_(accessible_alert),
announce_accessible_alert_soon_(false),
weak_ptr_factory_(this) {
SetInkDropMode(InkDropMode::ON_NO_GESTURE_HANDLER);
model_->AddObserver(this);
set_context_menu_controller(this);
dropdown_button_->SetAccessibleName(l10n_util::GetStringUTF16(
IDS_DOWNLOAD_ITEM_DROPDOWN_BUTTON_ACCESSIBLE_TEXT));
dropdown_button_->SetBorder(
views::CreateEmptyBorder(gfx::Insets(kDropdownBorderWidth)));
dropdown_button_->set_has_ink_drop_action_on_click(false);
AddChildView(dropdown_button_);
LoadIcon();
ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
font_list_ =
rb.GetFontList(ui::ResourceBundle::BaseFont).DeriveWithSizeDelta(1);
status_font_list_ =
rb.GetFontList(ui::ResourceBundle::BaseFont).DeriveWithSizeDelta(-2);
focus_ring_ = views::FocusRing::Install(this);
SetFocusBehavior(FocusBehavior::ACCESSIBLE_ONLY);
OnDownloadUpdated();
SetDropdownState(NORMAL);
UpdateColorsFromTheme();
}
DownloadItemView::~DownloadItemView() {
StopDownloadProgress();
model_->RemoveObserver(this);
}
// Progress animation handlers.
void DownloadItemView::StartDownloadProgress() {
if (progress_timer_.IsRunning())
return;
progress_start_time_ = base::TimeTicks::Now();
progress_timer_.Start(FROM_HERE, base::TimeDelta::FromMilliseconds(
DownloadShelf::kProgressRateMs),
base::Bind(&DownloadItemView::ProgressTimerFired,
base::Unretained(this)));
}
void DownloadItemView::StopDownloadProgress() {
accessible_alert_timer_.AbandonAndStop();
if (!progress_timer_.IsRunning())
return;
previous_progress_elapsed_ += base::TimeTicks::Now() - progress_start_time_;
progress_start_time_ = base::TimeTicks();
progress_timer_.Stop();
}
// static
SkColor DownloadItemView::GetTextColorForThemeProvider(
const ui::ThemeProvider* theme) {
return theme ? theme->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT)
: gfx::kPlaceholderColor;
}
void DownloadItemView::OnExtractIconComplete(gfx::Image* icon_bitmap) {
if (icon_bitmap)
shelf_->SchedulePaint();
}
void DownloadItemView::MaybeSubmitDownloadToFeedbackService(
DownloadCommands::Command download_command) {
if (model_->ShouldAllowDownloadFeedback() &&
SubmitDownloadToFeedbackService(download_command)) {
} else {
DownloadCommands(model_.get()).ExecuteCommand(download_command);
}
}
// DownloadObserver interface.
// Update the progress graphic on the icon and our text status label
// to reflect our current bytes downloaded, time remaining.
// Also updates the accessible status view for screen reader users.
void DownloadItemView::OnDownloadUpdated() {
if (!model_->ShouldShowInShelf()) {
shelf_->RemoveDownloadView(this); // This will delete us!
return;
}
if (IsShowingWarningDialog() != model_->IsDangerous()) {
ToggleWarningDialog();
} else {
status_text_ = GetStatusText();
switch (model_->GetState()) {
case DownloadItem::IN_PROGRESS:
// No need to send accessible alert for "paused", as the button ends
// up being refocused in the actual use case, and the name of the
// button reports that the download has been paused.
// Reset the status counter so that user receives immediate feedback
// once the download is resumed.
if (!model_->IsPaused())
UpdateAccessibleAlert(GetInProgressAccessibleAlertText(), false);
model_->IsPaused() ? StopDownloadProgress() : StartDownloadProgress();
LoadIconIfItemPathChanged();
break;
case DownloadItem::INTERRUPTED:
model_->GetFileNameToReportUser().LossyDisplayName();
UpdateAccessibleAlert(
l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_FAILED_ACCESSIBLE_ALERT,
model_->GetFileNameToReportUser().LossyDisplayName()),
true);
StopDownloadProgress();
complete_animation_.reset(new gfx::SlideAnimation(this));
complete_animation_->SetSlideDuration(kInterruptedAnimationDurationMs);
complete_animation_->SetTweenType(gfx::Tween::LINEAR);
complete_animation_->Show();
LoadIcon();
break;
case DownloadItem::COMPLETE:
UpdateAccessibleAlert(
l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_COMPLETE_ACCESSIBLE_ALERT,
model_->GetFileNameToReportUser().LossyDisplayName()),
true);
if (model_->ShouldRemoveFromShelfWhenComplete()) {
shelf_->RemoveDownloadView(this); // This will delete us!
return;
}
StopDownloadProgress();
complete_animation_.reset(new gfx::SlideAnimation(this));
complete_animation_->SetSlideDuration(kCompleteAnimationDurationMs);
complete_animation_->SetTweenType(gfx::Tween::LINEAR);
complete_animation_->Show();
LoadIcon();
break;
case DownloadItem::CANCELLED:
UpdateAccessibleAlert(
l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_CANCELLED_ACCESSIBLE_ALERT,
model_->GetFileNameToReportUser().LossyDisplayName()),
true);
StopDownloadProgress();
if (complete_animation_)
complete_animation_->Stop();
LoadIcon();
break;
default:
NOTREACHED();
}
SchedulePaint();
}
base::string16 new_tip = model_->GetTooltipText(font_list_, kTooltipMaxWidth);
if (new_tip != tooltip_text_) {
tooltip_text_ = new_tip;
TooltipTextChanged();
}
UpdateAccessibleName();
}
void DownloadItemView::OnDownloadDestroyed() {
shelf_->RemoveDownloadView(this); // This will delete us!
}
void DownloadItemView::OnDownloadOpened() {
disabled_while_opening_ = true;
SetEnabled(false);
base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
FROM_HERE,
base::BindOnce(&DownloadItemView::Reenable,
weak_ptr_factory_.GetWeakPtr()),
base::TimeDelta::FromMilliseconds(kDisabledOnOpenDuration));
// Notify our parent.
shelf_->OpenedDownload();
}
// View overrides
// In dangerous mode we have to layout our buttons.
void DownloadItemView::Layout() {
InkDropHostView::Layout();
UpdateColorsFromTheme();
if (IsShowingWarningDialog()) {
gfx::Point child_origin(
kStartPadding + kWarningIconSize + kStartPadding,
(height() - dangerous_download_label_->height()) / 2);
dangerous_download_label_->SetPosition(child_origin);
child_origin.Offset(dangerous_download_label_->width() + kLabelPadding, 0);
gfx::Size button_size = GetButtonSize();
child_origin.set_y((height() - button_size.height()) / 2);
if (save_button_) {
save_button_->SetBoundsRect(gfx::Rect(child_origin, button_size));
child_origin.Offset(button_size.width() + kSaveDiscardButtonPadding, 0);
}
discard_button_->SetBoundsRect(gfx::Rect(child_origin, button_size));
}
if (mode_ != DANGEROUS_MODE) {
dropdown_button_->SizeToPreferredSize();
dropdown_button_->SetPosition(
gfx::Point(width() - dropdown_button_->width() - kEndPadding,
(height() - dropdown_button_->height()) / 2));
}
}
void DownloadItemView::OnBoundsChanged(const gfx::Rect& previous_bounds) {
auto path = std::make_unique<SkPath>();
path->addRect(RectToSkRect(GetLocalBounds()));
SetProperty(views::kHighlightPathKey, path.release());
InkDropHostView::OnBoundsChanged(previous_bounds);
}
void DownloadItemView::UpdateDropdownButton() {
views::SetImageFromVectorIcon(
dropdown_button_,
dropdown_state_ == PUSHED ? kCaretDownIcon : kCaretUpIcon,
GetTextColor());
}
gfx::Size DownloadItemView::CalculatePreferredSize() const {
int width = 0;
// We set the height to the height of two rows or text plus margins.
int child_height = font_list_.GetBaseline() + kVerticalTextPadding +
status_font_list_.GetHeight();
if (IsShowingWarningDialog()) {
// Width.
width = kStartPadding + kWarningIconSize + kStartPadding +
dangerous_download_label_->width() + kLabelPadding;
gfx::Size button_size = GetButtonSize();
if (save_button_)
width += button_size.width() + kSaveDiscardButtonPadding;
width += button_size.width() + kEndPadding;
// Height: make sure the button fits and the warning icon fits.
child_height =
std::max({child_height, button_size.height(), kWarningIconSize});
} else {
width = kStartPadding + DownloadShelf::kProgressIndicatorSize +
kProgressTextPadding + kTextWidth + kEndPadding;
}
if (mode_ != DANGEROUS_MODE)
width += dropdown_button_->GetPreferredSize().width();
return gfx::Size(width, std::max(kDefaultHeight,
2 * kMinimumVerticalPadding + child_height));
}
bool DownloadItemView::OnMousePressed(const ui::MouseEvent& event) {
HandlePressEvent(event, event.IsOnlyLeftMouseButton());
return true;
}
// Handle drag (file copy) operations.
bool DownloadItemView::OnMouseDragged(const ui::MouseEvent& event) {
// Mouse should not activate us in dangerous mode.
if (IsShowingWarningDialog())
return true;
if (!starting_drag_) {
starting_drag_ = true;
drag_start_point_ = event.location();
AnimateInkDrop(views::InkDropState::HIDDEN, &event);
}
if (dragging_) {
if (model_->GetState() == DownloadItem::COMPLETE) {
IconManager* im = g_browser_process->icon_manager();
gfx::Image* icon = im->LookupIconFromFilepath(model_->GetTargetFilePath(),
IconLoader::SMALL);
views::Widget* widget = GetWidget();
if (model_->download()) {
// TODO(shaktisahu): Make DragDownloadItem work with a model.
DragDownloadItem(model_->download(), icon,
widget ? widget->GetNativeView() : nullptr);
RecordDownloadShelfDragEvent(DownloadShelfDragEvent::STARTED);
}
}
} else if (ExceededDragThreshold(event.location() - drag_start_point_)) {
dragging_ = true;
}
return true;
}
void DownloadItemView::OnMouseReleased(const ui::MouseEvent& event) {
HandleClickEvent(event, event.IsOnlyLeftMouseButton());
}
void DownloadItemView::OnMouseCaptureLost() {
// Mouse should not activate us in dangerous mode.
if (mode_ != NORMAL_MODE)
return;
if (dragging_) {
// Starting a drag results in a MouseCaptureLost.
dragging_ = false;
starting_drag_ = false;
}
}
bool DownloadItemView::OnKeyPressed(const ui::KeyEvent& event) {
// Key press should not activate us in dangerous mode.
if (IsShowingWarningDialog())
return true;
if (event.key_code() == ui::VKEY_SPACE ||
event.key_code() == ui::VKEY_RETURN) {
AnimateInkDrop(views::InkDropState::ACTION_TRIGGERED, nullptr /* &event */);
// OpenDownload may delete this, so don't add any code after this line.
OpenDownload();
return true;
}
return false;
}
bool DownloadItemView::GetTooltipText(const gfx::Point& p,
base::string16* tooltip) const {
if (IsShowingWarningDialog()) {
tooltip->clear();
return false;
}
tooltip->assign(tooltip_text_);
return true;
}
void DownloadItemView::GetAccessibleNodeData(ui::AXNodeData* node_data) {
node_data->SetName(accessible_name_);
node_data->role = ax::mojom::Role::kButton;
if (model_->IsDangerous())
node_data->SetRestriction(ax::mojom::Restriction::kDisabled);
// Set the description to the empty string, otherwise the tooltip will be
// used, which is redundant with the accessible name.
node_data->SetDescription(base::string16());
}
void DownloadItemView::AddedToWidget() {
// Only required because OnThemeChanged is not called when a View is added to
// a Widget.
UpdateDropdownButton();
}
void DownloadItemView::OnThemeChanged() {
UpdateColorsFromTheme();
SchedulePaint();
UpdateDropdownButton();
}
void DownloadItemView::OnInkDropCreated() {
ConfigureInkDrop();
}
void DownloadItemView::OnGestureEvent(ui::GestureEvent* event) {
if (event->type() == ui::ET_GESTURE_TAP_DOWN) {
HandlePressEvent(*event, true);
event->SetHandled();
return;
}
if (event->type() == ui::ET_GESTURE_TAP) {
HandleClickEvent(*event, true);
event->SetHandled();
return;
}
views::View::OnGestureEvent(event);
}
void DownloadItemView::ShowContextMenuForView(View* source,
const gfx::Point& point,
ui::MenuSourceType source_type) {
ShowContextMenuImpl(gfx::Rect(point, gfx::Size()), source_type);
}
void DownloadItemView::ButtonPressed(views::Button* sender,
const ui::Event& event) {
if (sender == dropdown_button_) {
// TODO(estade): this is copied from ToolbarActionView but should be shared
// one way or another.
ui::MenuSourceType type = ui::MENU_SOURCE_NONE;
if (event.IsMouseEvent())
type = ui::MENU_SOURCE_MOUSE;
else if (event.IsKeyEvent())
type = ui::MENU_SOURCE_KEYBOARD;
else if (event.IsGestureEvent())
type = ui::MENU_SOURCE_TOUCH;
SetDropdownState(PUSHED);
ShowContextMenuImpl(dropdown_button_->GetBoundsInScreen(), type);
return;
}
base::TimeDelta warning_duration;
if (!time_download_warning_shown_.is_null())
warning_duration = base::Time::Now() - time_download_warning_shown_;
if (save_button_ && sender == save_button_) {
// The user has confirmed a dangerous download. We'd record how quickly the
// user did this to detect whether we're being clickjacked.
UMA_HISTOGRAM_LONG_TIMES("clickjacking.save_download", warning_duration);
// This will call ValidateDangerousDownload(), change download state and
// notify us.
MaybeSubmitDownloadToFeedbackService(DownloadCommands::KEEP);
return;
}
DCHECK_EQ(discard_button_, sender);
UMA_HISTOGRAM_LONG_TIMES("clickjacking.discard_download", warning_duration);
MaybeSubmitDownloadToFeedbackService(DownloadCommands::DISCARD);
// WARNING: 'this' maybe deleted at this point. Don't access 'this'.
}
void DownloadItemView::AnimationProgressed(const gfx::Animation* animation) {
// We don't care if what animation (body button/drop button/complete),
// is calling back, as they all have to go through the same paint call.
SchedulePaint();
}
void DownloadItemView::OnPaint(gfx::Canvas* canvas) {
// Make sure to draw |this| opaquely. Since the toolbar color can be partially
// transparent, start with a black backdrop (which is the default initialized
// color for opaque canvases).
canvas->DrawColor(SK_ColorBLACK);
canvas->DrawColor(
GetThemeProvider()->GetColor(ThemeProperties::COLOR_DOWNLOAD_SHELF));
DrawStatusText(canvas);
DrawFilename(canvas);
DrawIcon(canvas);
OnPaintBorder(canvas);
}
int DownloadItemView::GetYForFilenameText() const {
int text_height = font_list_.GetBaseline();
if (!status_text_.empty())
text_height += kVerticalTextPadding + status_font_list_.GetBaseline();
return (height() - text_height) / 2;
}
void DownloadItemView::DrawStatusText(gfx::Canvas* canvas) {
if (status_text_.empty() || IsShowingWarningDialog())
return;
int mirrored_x = GetMirroredXWithWidthInView(
kStartPadding + DownloadShelf::kProgressIndicatorSize +
kProgressTextPadding,
kTextWidth);
int y =
GetYForFilenameText() + font_list_.GetBaseline() + kVerticalTextPadding;
canvas->DrawStringRect(
status_text_, status_font_list_, GetDimmedTextColor(),
gfx::Rect(mirrored_x, y, kTextWidth, status_font_list_.GetHeight()));
}
void DownloadItemView::DrawFilename(gfx::Canvas* canvas) {
if (IsShowingWarningDialog())
return;
// Print the text, left aligned and always print the file extension.
// Last value of x was the end of the right image, just before the button.
// Note that in dangerous mode we use a label (as the text is multi-line).
base::string16 filename;
if (!disabled_while_opening_) {
filename = gfx::ElideFilename(model_->GetFileNameToReportUser(), font_list_,
kTextWidth);
} else {
// First, Calculate the download status opening string width.
base::string16 status_string = l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_STATUS_OPENING, base::string16());
int status_string_width = gfx::GetStringWidth(status_string, font_list_);
// Then, elide the file name.
base::string16 filename_string =
gfx::ElideFilename(model_->GetFileNameToReportUser(), font_list_,
kTextWidth - status_string_width);
// Last, concat the whole string.
filename = l10n_util::GetStringFUTF16(IDS_DOWNLOAD_STATUS_OPENING,
filename_string);
}
int mirrored_x = GetMirroredXWithWidthInView(
kStartPadding + DownloadShelf::kProgressIndicatorSize +
kProgressTextPadding,
kTextWidth);
canvas->DrawStringRect(filename, font_list_,
enabled() ? GetTextColor() : GetDimmedTextColor(),
gfx::Rect(mirrored_x, GetYForFilenameText(),
kTextWidth, font_list_.GetHeight()));
}
void DownloadItemView::DrawIcon(gfx::Canvas* canvas) {
if (IsShowingWarningDialog()) {
int icon_x = base::i18n::IsRTL()
? width() - kWarningIconSize - kStartPadding
: kStartPadding;
int icon_y = (height() - kWarningIconSize) / 2;
canvas->DrawImageInt(GetWarningIcon(), icon_x, icon_y);
return;
}
// Paint download progress.
DownloadItem::DownloadState state = model_->GetState();
canvas->Save();
int progress_x =
base::i18n::IsRTL()
? width() - kStartPadding - DownloadShelf::kProgressIndicatorSize
: kStartPadding;
int progress_y = (height() - DownloadShelf::kProgressIndicatorSize) / 2;
canvas->Translate(gfx::Vector2d(progress_x, progress_y));
if (state == DownloadItem::IN_PROGRESS) {
base::TimeDelta progress_time = previous_progress_elapsed_;
if (!model_->IsPaused())
progress_time += base::TimeTicks::Now() - progress_start_time_;
DownloadShelf::PaintDownloadProgress(
canvas, *GetThemeProvider(), progress_time, model_->PercentComplete());
} else if (complete_animation_.get() && complete_animation_->is_animating()) {
if (state == DownloadItem::INTERRUPTED) {
DownloadShelf::PaintDownloadInterrupted(
canvas, *GetThemeProvider(), complete_animation_->GetCurrentValue());
} else {
DCHECK_EQ(DownloadItem::COMPLETE, state);
DownloadShelf::PaintDownloadComplete(
canvas, *GetThemeProvider(), complete_animation_->GetCurrentValue());
}
}
canvas->Restore();
// Fetch the already-loaded icon.
IconManager* im = g_browser_process->icon_manager();
gfx::Image* icon = im->LookupIconFromFilepath(model_->GetTargetFilePath(),
IconLoader::SMALL);
if (!icon)
return;
// Draw the icon image.
int icon_x = progress_x + DownloadShelf::kFiletypeIconOffset;
int icon_y = progress_y + DownloadShelf::kFiletypeIconOffset;
cc::PaintFlags flags;
// Use an alpha to make the image look disabled.
if (!enabled())
flags.setAlpha(120);
canvas->DrawImageInt(*icon->ToImageSkia(), icon_x, icon_y, flags);
}
void DownloadItemView::OnFocus() {
View::OnFocus();
// We render differently when focused.
SchedulePaint();
}
void DownloadItemView::OnBlur() {
View::OnBlur();
// We render differently when focused.
SchedulePaint();
}
void DownloadItemView::OpenDownload() {
DCHECK(!IsShowingWarningDialog());
// We're interested in how long it takes users to open downloads. If they
// open downloads super quickly, we should be concerned about clickjacking.
UMA_HISTOGRAM_LONG_TIMES("clickjacking.open_download",
base::Time::Now() - creation_time_);
// If this is still around for the next status update, it will be read.
announce_accessible_alert_soon_ = true;
// Calling download()->OpenDownload may delete this, so this must be
// the last thing we do.
model_->OpenDownload();
}
bool DownloadItemView::SubmitDownloadToFeedbackService(
DownloadCommands::Command download_command) {
#if defined(FULL_SAFE_BROWSING)
safe_browsing::SafeBrowsingService* sb_service =
g_browser_process->safe_browsing_service();
if (!sb_service)
return false;
safe_browsing::DownloadProtectionService* download_protection_service =
sb_service->download_protection_service();
if (!download_protection_service)
return false;
// TODO(shaktisahu): Enable feedback service for offline item.
if (model_->download()) {
return download_protection_service->MaybeBeginFeedbackForDownload(
shelf_->browser()->profile(), model_->download(), download_command);
}
// WARNING: we are deleted at this point. Don't access 'this'.
return true;
#else
NOTREACHED();
return false;
#endif
}
void DownloadItemView::LoadIcon() {
IconManager* im = g_browser_process->icon_manager();
last_download_item_path_ = model_->GetTargetFilePath();
im->LoadIcon(last_download_item_path_, IconLoader::SMALL,
base::Bind(&DownloadItemView::OnExtractIconComplete,
base::Unretained(this)),
&cancelable_task_tracker_);
}
void DownloadItemView::LoadIconIfItemPathChanged() {
base::FilePath current_download_path = model_->GetTargetFilePath();
if (last_download_item_path_ == current_download_path)
return;
LoadIcon();
}
void DownloadItemView::UpdateColorsFromTheme() {
if (!GetThemeProvider())
return;
SetBorder(std::make_unique<SeparatorBorder>(GetThemeProvider()->GetColor(
ThemeProperties::COLOR_TOOLBAR_VERTICAL_SEPARATOR)));
if (dangerous_download_label_)
dangerous_download_label_->SetEnabledColor(GetTextColor());
if (save_button_)
shelf_->ConfigureButtonForTheme(save_button_);
if (discard_button_)
shelf_->ConfigureButtonForTheme(discard_button_);
}
void DownloadItemView::ShowContextMenuImpl(const gfx::Rect& rect,
ui::MenuSourceType source_type) {
// Similar hack as in MenuButton.
// We're about to show the menu from a mouse press. By showing from the
// mouse press event we block RootView in mouse dispatching. This also
// appears to cause RootView to get a mouse pressed BEFORE the mouse
// release is seen, which means RootView sends us another mouse press no
// matter where the user pressed. To force RootView to recalculate the
// mouse target during the mouse press we explicitly set the mouse handler
// to null.
static_cast<views::internal::RootView*>(GetWidget()->GetRootView())
->SetMouseHandler(nullptr);
AnimateInkDrop(views::InkDropState::HIDDEN, nullptr);
if (!context_menu_.get())
context_menu_.reset(new DownloadShelfContextMenuView(this));
context_menu_->Run(GetWidget()->GetTopLevelWidget(), rect, source_type,
base::Bind(&DownloadItemView::ReleaseDropdown,
weak_ptr_factory_.GetWeakPtr()));
}
void DownloadItemView::HandlePressEvent(const ui::LocatedEvent& event,
bool active_event) {
// The event should not activate us in dangerous/malicious mode.
if (IsShowingWarningDialog())
return;
// Stop any completion animation.
if (complete_animation_.get() && complete_animation_->is_animating())
complete_animation_->End();
// Don't show the ripple for right clicks.
if (!active_event)
return;
AnimateInkDrop(views::InkDropState::ACTION_PENDING, &event);
}
void DownloadItemView::HandleClickEvent(const ui::LocatedEvent& event,
bool active_event) {
// The event should not activate us in dangerous/malicious mode.
if (!active_event || IsShowingWarningDialog())
return;
AnimateInkDrop(views::InkDropState::ACTION_TRIGGERED, &event);
// OpenDownload may delete this, so don't add any code after this line.
OpenDownload();
}
void DownloadItemView::SetDropdownState(State new_state) {
// Avoid extra SchedulePaint()s if the state is going to be the same and
// |dropdown_button_| has already been initialized.
if (dropdown_state_ == new_state &&
!dropdown_button_->GetImage(views::Button::STATE_NORMAL).isNull())
return;
if (new_state != dropdown_state_) {
dropdown_button_->AnimateInkDrop(new_state == PUSHED
? views::InkDropState::ACTIVATED
: views::InkDropState::DEACTIVATED,
nullptr);
}
dropdown_state_ = new_state;
UpdateDropdownButton();
SchedulePaint();
}
void DownloadItemView::ConfigureInkDrop() {
if (HasInkDrop())
GetInkDrop()->SetShowHighlightOnHover(!IsShowingWarningDialog());
}
SkColor DownloadItemView::GetInkDropBaseColor() const {
return color_utils::DeriveDefaultIconColor(GetTextColor());
}
void DownloadItemView::SetMode(Mode mode) {
mode_ = mode;
ConfigureInkDrop();
}
void DownloadItemView::ToggleWarningDialog() {
if (model_->IsDangerous())
ShowWarningDialog();
else
ClearWarningDialog();
// We need to load the icon now that the download has the real path.
LoadIcon();
// Force the shelf to layout again as our size has changed.
shelf_->Layout();
shelf_->SchedulePaint();
}
void DownloadItemView::ClearWarningDialog() {
DCHECK_EQ(model_->GetDangerType(),
download::DOWNLOAD_DANGER_TYPE_USER_VALIDATED);
DCHECK(IsShowingWarningDialog());
SetMode(NORMAL_MODE);
dropdown_state_ = NORMAL;
// Remove the views used by the warning dialog.
delete save_button_;
save_button_ = nullptr;
delete discard_button_;
discard_button_ = nullptr;
delete dangerous_download_label_;
dangerous_download_label_ = nullptr;
dangerous_download_label_sized_ = false;
// We need to load the icon now that the download has the real path.
LoadIcon();
dropdown_button_->SetVisible(true);
}
void DownloadItemView::ShowWarningDialog() {
DCHECK(!IsShowingWarningDialog());
time_download_warning_shown_ = base::Time::Now();
download::DownloadDangerType danger_type = model_->GetDangerType();
RecordDangerousDownloadWarningShown(danger_type);
#if defined(FULL_SAFE_BROWSING)
if (model_->ShouldAllowDownloadFeedback()) {
safe_browsing::DownloadFeedbackService::RecordEligibleDownloadShown(
danger_type);
}
#endif
SetMode(model_->MightBeMalicious() ? MALICIOUS_MODE : DANGEROUS_MODE);
dropdown_state_ = NORMAL;
if (mode_ == DANGEROUS_MODE) {
save_button_ = views::MdTextButton::Create(
this, model_->GetWarningConfirmButtonText());
AddChildView(save_button_);
}
discard_button_ = views::MdTextButton::Create(
this, l10n_util::GetStringUTF16(IDS_DISCARD_DOWNLOAD));
AddChildView(discard_button_);
base::string16 dangerous_label =
model_->GetWarningText(font_list_, kTextWidth);
dangerous_download_label_ = new views::Label(dangerous_label);
dangerous_download_label_->SetMultiLine(true);
dangerous_download_label_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
dangerous_download_label_->SetAutoColorReadabilityEnabled(false);
AddChildView(dangerous_download_label_);
SizeLabelToMinWidth();
dropdown_button_->SetVisible(mode_ == MALICIOUS_MODE);
}
gfx::ImageSkia DownloadItemView::GetWarningIcon() {
switch (model_->GetDangerType()) {
case download::DOWNLOAD_DANGER_TYPE_DANGEROUS_URL:
case download::DOWNLOAD_DANGER_TYPE_DANGEROUS_CONTENT:
case download::DOWNLOAD_DANGER_TYPE_UNCOMMON_CONTENT:
case download::DOWNLOAD_DANGER_TYPE_DANGEROUS_HOST:
case download::DOWNLOAD_DANGER_TYPE_POTENTIALLY_UNWANTED:
case download::DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE:
return gfx::CreateVectorIcon(vector_icons::kWarningIcon, kWarningIconSize,
gfx::kGoogleRed700);
case download::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS:
case download::DOWNLOAD_DANGER_TYPE_MAYBE_DANGEROUS_CONTENT:
case download::DOWNLOAD_DANGER_TYPE_USER_VALIDATED:
case download::DOWNLOAD_DANGER_TYPE_WHITELISTED_BY_POLICY:
case download::DOWNLOAD_DANGER_TYPE_MAX:
NOTREACHED();
break;
}
return gfx::ImageSkia();
}
gfx::Size DownloadItemView::GetButtonSize() const {
DCHECK(discard_button_ && (mode_ == MALICIOUS_MODE || save_button_));
gfx::Size size = discard_button_->GetPreferredSize();
if (save_button_)
size.SetToMax(save_button_->GetPreferredSize());
return size;
}
// This method computes the minimum width of the label for displaying its text
// on 2 lines. It just breaks the string in 2 lines on the spaces and keeps the
// configuration with minimum width.
void DownloadItemView::SizeLabelToMinWidth() {
if (dangerous_download_label_sized_)
return;
dangerous_download_label_->SetSize(
AdjustTextAndGetSize(dangerous_download_label_));
dangerous_download_label_sized_ = true;
}
// static
gfx::Size DownloadItemView::AdjustTextAndGetSize(views::Label* label) {
gfx::Size size = label->GetPreferredSize();
// If the label's width is already narrower than 200, we don't need to
// linebreak it, as it will fit on a single line.
if (size.width() <= 200)
return size;
base::string16 label_text = label->text();
base::TrimWhitespace(label_text, base::TRIM_ALL, &label_text);
DCHECK_EQ(base::string16::npos, label_text.find('\n'));
// Make the label big so that GetPreferredSize() is not constrained by the
// current width.
label->SetBounds(0, 0, 1000, 1000);
// Use a const string from here. BreakIterator requies that text.data() not
// change during its lifetime.
const base::string16 original_text(label_text);
// Using BREAK_WORD can work in most cases, but it can also break
// lines where it should not. Using BREAK_LINE is safer although
// slower for Chinese/Japanese. This is not perf-critical at all, though.
base::i18n::BreakIterator iter(original_text,
base::i18n::BreakIterator::BREAK_LINE);
bool status = iter.Init();
DCHECK(status);
// Go through the string and try each line break (starting with no line break)
// searching for the optimal line break position. Stop if we find one that
// yields minimum label width.
base::string16 prev_text = original_text;
for (gfx::Size min_width_size = size; iter.Advance(); min_width_size = size) {
size_t pos = iter.pos();
if (pos >= original_text.length())
break;
base::string16 current_text = original_text;
// This can be a low surrogate codepoint, but u_isUWhiteSpace will
// return false and inserting a new line after a surrogate pair
// is perfectly ok.
base::char16 line_end_char = current_text[pos - 1];
if (u_isUWhiteSpace(line_end_char))
current_text.replace(pos - 1, 1, 1, base::char16('\n'));
else
current_text.insert(pos, 1, base::char16('\n'));
label->SetText(current_text);
size = label->GetPreferredSize();
// If the width is growing again, it means we passed the optimal width spot.
if (size.width() > min_width_size.width()) {
label->SetText(prev_text);
return min_width_size;
}
prev_text = current_text;
}
return size;
}
void DownloadItemView::Reenable() {
disabled_while_opening_ = false;
SetEnabled(true); // Triggers a repaint.
}
void DownloadItemView::ReleaseDropdown() {
SetDropdownState(NORMAL);
// Make sure any new status from activating a context menu option is read.
announce_accessible_alert_soon_ = true;
}
void DownloadItemView::UpdateAccessibleName() {
base::string16 new_name;
if (IsShowingWarningDialog()) {
new_name = dangerous_download_label_->text();
} else {
new_name = status_text_ + base::char16(' ') +
model_->GetFileNameToReportUser().LossyDisplayName();
}
// Do not fire text changed notifications. Screen readers are notified of
// status changes via the accessible alert notifications, and text change
// notifications would be redundant.
accessible_name_ = new_name;
}
base::string16 DownloadItemView::GetInProgressAccessibleAlertText() {
// If opening when complete or there is a warning, use the full status text.
if (model_->GetOpenWhenComplete() || IsShowingWarningDialog()) {
UpdateAccessibleName();
return accessible_name_;
}
// Prefer to announce the time remaining, if known.
base::TimeDelta remaining;
if (model_->TimeRemaining(&remaining)) {
// If complete, skip this round: a completion status update is coming soon.
if (remaining.is_zero())
return base::string16();
base::string16 remaining_string =
ui::TimeFormat::Simple(ui::TimeFormat::FORMAT_REMAINING,
ui::TimeFormat::LENGTH_SHORT, remaining);
return l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_STATUS_TIME_REMAINING_ACCESSIBLE_ALERT, remaining_string);
}
// Time remaining is unknown, try to announce percent remaining.
if (model_->PercentComplete() > 0) {
DCHECK_LE(model_->PercentComplete(), 100);
return l10n_util::GetStringFUTF16Int(
IDS_DOWNLOAD_STATUS_PERCENT_COMPLETE_ACCESSIBLE_ALERT,
100 - model_->PercentComplete());
}
// Percent remaining is also unknown, announce bytes to download.
base::string16 file_name =
model_->GetFileNameToReportUser().LossyDisplayName();
return l10n_util::GetStringFUTF16(
IDS_DOWNLOAD_STATUS_IN_PROGRESS_ACCESSIBLE_ALERT,
ui::FormatBytes(model_->GetTotalBytes()), file_name);
}
void DownloadItemView::UpdateAccessibleAlert(
const base::string16& accessible_alert_text,
bool is_last_update) {
views::ViewAccessibility& ax = accessible_alert_->GetViewAccessibility();
ax.OverrideRole(ax::mojom::Role::kAlert);
ax.OverrideName(accessible_alert_text);
if (is_last_update) {
// Last update: stop the announcement interval timer and make the last
// announcement immediately.
accessible_alert_timer_.AbandonAndStop();
AnnounceAccessibleAlert();
} else if (!accessible_alert_timer_.IsRunning()) {
// First update: start the announcement interval timer and make the first
// announcement immediately.
accessible_alert_timer_.Start(FROM_HERE, kAccessibleAlertInterval, this,
&DownloadItemView::AnnounceAccessibleAlert);
AnnounceAccessibleAlert();
} else if (announce_accessible_alert_soon_) {
accessible_alert_timer_.Reset();
AnnounceAccessibleAlert();
}
}
void DownloadItemView::AnnounceAccessibleAlert() {
accessible_alert_->NotifyAccessibilityEvent(ax::mojom::Event::kAlert, true);
announce_accessible_alert_soon_ = false;
}
void DownloadItemView::AnimateStateTransition(State from,
State to,
gfx::SlideAnimation* animation) {
if (from == NORMAL && to == HOT) {
animation->Show();
} else if (from == HOT && to == NORMAL) {
animation->Hide();
} else if (from != to) {
animation->Reset((to == HOT) ? 1.0 : 0.0);
}
}
void DownloadItemView::ProgressTimerFired() {
// Only repaint for the indeterminate size case. Otherwise, we'll repaint only
// when there's an update notified via OnDownloadUpdated().
if (model_->PercentComplete() < 0)
SchedulePaint();
}
SkColor DownloadItemView::GetTextColor() const {
return GetTextColorForThemeProvider(GetThemeProvider());
}
SkColor DownloadItemView::GetDimmedTextColor() const {
return SkColorSetA(GetTextColor(), 0xC7);
}
base::string16 DownloadItemView::GetStatusText() const {
if (!model_->ShouldPromoteOrigin() ||
model_->GetOriginalURL().GetOrigin().is_empty()) {
// Use the default status text.
return model_->GetStatusText();
}
#if !defined(OS_ANDROID)
return url_formatter::ElideUrl(model_->GetOriginalURL().GetOrigin(),
status_font_list_, kTextWidth,
gfx::Typesetter::BROWSER);
#else
NOTREACHED();
return base::string16();
#endif
}