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Unified Diff: ash/common/drag_drop/drag_image_view.cc

Issue 2736573002: chromeos: Move files in //ash/common to //ash, part 2 (Closed)
Patch Set: Created 3 years, 9 months ago
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Index: ash/common/drag_drop/drag_image_view.cc
diff --git a/ash/common/drag_drop/drag_image_view.cc b/ash/common/drag_drop/drag_image_view.cc
deleted file mode 100644
index 1306bf10c60b6be2e4c7c659db2048870f629821..0000000000000000000000000000000000000000
--- a/ash/common/drag_drop/drag_image_view.cc
+++ /dev/null
@@ -1,208 +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.
-
-#include "ash/common/drag_drop/drag_image_view.h"
-
-#include <memory>
-
-#include "ash/common/wm_window.h"
-#include "ash/public/cpp/shell_window_ids.h"
-#include "ash/root_window_controller.h"
-#include "skia/ext/image_operations.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/display/display.h"
-#include "ui/gfx/canvas.h"
-#include "ui/resources/grit/ui_resources.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-namespace {
-using views::Widget;
-
-std::unique_ptr<Widget> CreateDragWidget(WmWindow* root_window) {
- std::unique_ptr<Widget> drag_widget(new Widget);
- Widget::InitParams params;
- params.type = Widget::InitParams::TYPE_TOOLTIP;
- params.name = "DragWidget";
- params.keep_on_top = true;
- params.accept_events = false;
- params.ownership = Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
- params.shadow_type = Widget::InitParams::SHADOW_TYPE_NONE;
- params.opacity = Widget::InitParams::TRANSLUCENT_WINDOW;
- root_window->GetRootWindowController()->ConfigureWidgetInitParamsForContainer(
- drag_widget.get(), kShellWindowId_DragImageAndTooltipContainer, &params);
- drag_widget->Init(params);
- drag_widget->SetOpacity(1.f);
- return drag_widget;
-}
-
-} // namespace
-
-DragImageView::DragImageView(WmWindow* root_window,
- ui::DragDropTypes::DragEventSource event_source)
- : drag_event_source_(event_source),
- touch_drag_operation_(ui::DragDropTypes::DRAG_NONE) {
- DCHECK(root_window);
- widget_ = CreateDragWidget(root_window);
- widget_->SetContentsView(this);
- widget_->SetAlwaysOnTop(true);
-
- // We are owned by the DragDropController.
- set_owned_by_client();
-}
-
-DragImageView::~DragImageView() {
- widget_->Hide();
-}
-
-void DragImageView::SetBoundsInScreen(const gfx::Rect& bounds) {
- drag_image_size_ = bounds.size();
- widget_->SetBounds(bounds);
-}
-
-void DragImageView::SetScreenPosition(const gfx::Point& position) {
- widget_->SetBounds(
- gfx::Rect(position, widget_->GetWindowBoundsInScreen().size()));
-}
-
-gfx::Rect DragImageView::GetBoundsInScreen() const {
- return widget_->GetWindowBoundsInScreen();
-}
-
-void DragImageView::SetWidgetVisible(bool visible) {
- if (visible != widget_->IsVisible()) {
- if (visible)
- widget_->Show();
- else
- widget_->Hide();
- }
-}
-
-void DragImageView::SetTouchDragOperationHintOff() {
- // Simply set the drag type to non-touch so that no hint is drawn.
- drag_event_source_ = ui::DragDropTypes::DRAG_EVENT_SOURCE_MOUSE;
-
- // This disables the drag hint image. This should reduce the widget size if
- // the drag image is smaller than the drag hint image, so we set new bounds.
- gfx::Rect new_bounds = GetBoundsInScreen();
- new_bounds.set_size(drag_image_size_);
- SetBoundsInScreen(new_bounds);
- SchedulePaint();
-}
-
-void DragImageView::SetTouchDragOperation(int operation) {
- if (touch_drag_operation_ == operation)
- return;
- touch_drag_operation_ = operation;
- SchedulePaint();
-}
-
-void DragImageView::SetTouchDragOperationHintPosition(
- const gfx::Point& position) {
- if (touch_drag_operation_indicator_position_ == position)
- return;
- touch_drag_operation_indicator_position_ = position;
- SchedulePaint();
-}
-
-void DragImageView::SetOpacity(float visibility) {
- DCHECK_GE(visibility, 0.0f);
- DCHECK_LE(visibility, 1.0f);
- widget_->SetOpacity(visibility);
-}
-
-void DragImageView::OnPaint(gfx::Canvas* canvas) {
- if (GetImage().isNull())
- return;
-
- // |drag_image_size_| is in DIP.
- // ImageSkia::size() also returns the size in DIP.
- if (GetImage().size() == drag_image_size_) {
- canvas->DrawImageInt(GetImage(), 0, 0);
- } else {
- WmWindow* window = WmWindow::Get(widget_->GetNativeWindow());
- const float device_scale =
- window->GetDisplayNearestWindow().device_scale_factor();
- // The drag image already has device scale factor applied. But
- // |drag_image_size_| is in DIP units.
- gfx::Size drag_image_size_pixels =
- gfx::ScaleToRoundedSize(drag_image_size_, device_scale);
- gfx::ImageSkiaRep image_rep = GetImage().GetRepresentation(device_scale);
- if (image_rep.is_null())
- return;
- SkBitmap scaled = skia::ImageOperations::Resize(
- image_rep.sk_bitmap(), skia::ImageOperations::RESIZE_LANCZOS3,
- drag_image_size_pixels.width(), drag_image_size_pixels.height());
- gfx::ImageSkia image_skia(gfx::ImageSkiaRep(scaled, device_scale));
- canvas->DrawImageInt(image_skia, 0, 0);
- }
-
- gfx::Image* drag_hint = DragHint();
- if (!ShouldDrawDragHint() || drag_hint->IsEmpty())
- return;
-
- // Make sure drag hint image is positioned within the widget.
- gfx::Size drag_hint_size = drag_hint->Size();
- gfx::Point drag_hint_position = touch_drag_operation_indicator_position_;
- drag_hint_position.Offset(-drag_hint_size.width() / 2, 0);
- gfx::Rect drag_hint_bounds(drag_hint_position, drag_hint_size);
-
- gfx::Size widget_size = widget_->GetWindowBoundsInScreen().size();
- drag_hint_bounds.AdjustToFit(gfx::Rect(widget_size));
-
- // Draw image.
- canvas->DrawImageInt(*(drag_hint->ToImageSkia()), drag_hint_bounds.x(),
- drag_hint_bounds.y());
-}
-
-gfx::Image* DragImageView::DragHint() const {
- // Select appropriate drag hint.
- gfx::Image* drag_hint =
- &ui::ResourceBundle::GetSharedInstance().GetImageNamed(
- IDR_TOUCH_DRAG_TIP_NODROP);
- if (touch_drag_operation_ & ui::DragDropTypes::DRAG_COPY) {
- drag_hint = &ui::ResourceBundle::GetSharedInstance().GetImageNamed(
- IDR_TOUCH_DRAG_TIP_COPY);
- } else if (touch_drag_operation_ & ui::DragDropTypes::DRAG_MOVE) {
- drag_hint = &ui::ResourceBundle::GetSharedInstance().GetImageNamed(
- IDR_TOUCH_DRAG_TIP_MOVE);
- } else if (touch_drag_operation_ & ui::DragDropTypes::DRAG_LINK) {
- drag_hint = &ui::ResourceBundle::GetSharedInstance().GetImageNamed(
- IDR_TOUCH_DRAG_TIP_LINK);
- }
- return drag_hint;
-}
-
-bool DragImageView::ShouldDrawDragHint() const {
- return drag_event_source_ == ui::DragDropTypes::DRAG_EVENT_SOURCE_TOUCH;
-}
-
-gfx::Size DragImageView::GetMinimumSize() const {
- gfx::Size minimum_size = drag_image_size_;
- if (ShouldDrawDragHint())
- minimum_size.SetToMax(DragHint()->Size());
- return minimum_size;
-}
-
-void DragImageView::Layout() {
- View::Layout();
-
- // Only consider resizing the widget for the drag hint image if we are in a
- // touch initiated drag.
- gfx::Image* drag_hint = DragHint();
- if (!ShouldDrawDragHint() || drag_hint->IsEmpty())
- return;
-
- gfx::Size drag_hint_size = drag_hint->Size();
-
- // Enlarge widget if required to fit the drag hint image.
- gfx::Size widget_size = widget_->GetWindowBoundsInScreen().size();
- if (drag_hint_size.width() > widget_size.width() ||
- drag_hint_size.height() > widget_size.height()) {
- widget_size.SetToMax(drag_hint_size);
- widget_->SetSize(widget_size);
- }
-}
-
-} // namespace ash
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