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- // 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 "ui/snapshot/snapshot.h"
- #import <Cocoa/Cocoa.h>
- #include "base/callback.h"
- #include "base/check_op.h"
- #include "base/mac/scoped_cftyperef.h"
- #include "ui/gfx/geometry/rect.h"
- #include "ui/gfx/image/image.h"
- namespace ui {
- bool GrabViewSnapshot(gfx::NativeView native_view,
- const gfx::Rect& snapshot_bounds,
- gfx::Image* image) {
- NSView* view = native_view.GetNativeNSView();
- NSWindow* window = [view window];
- NSScreen* screen = [[NSScreen screens] firstObject];
- gfx::Rect screen_bounds = gfx::Rect(NSRectToCGRect([screen frame]));
- // Get the view bounds relative to the screen
- NSRect frame = [view convertRect:[view bounds] toView:nil];
- frame = [window convertRectToScreen:frame];
- gfx::Rect view_bounds = gfx::Rect(NSRectToCGRect(frame));
- // Flip window coordinates based on the primary screen.
- view_bounds.set_y(
- screen_bounds.height() - view_bounds.y() - view_bounds.height());
- // Convert snapshot bounds relative to window into bounds relative to
- // screen.
- gfx::Rect screen_snapshot_bounds = snapshot_bounds;
- screen_snapshot_bounds.Offset(view_bounds.OffsetFromOrigin());
- DCHECK_LE(screen_snapshot_bounds.right(), view_bounds.right());
- DCHECK_LE(screen_snapshot_bounds.bottom(), view_bounds.bottom());
- base::ScopedCFTypeRef<CGImageRef> windowSnapshot(
- CGWindowListCreateImage(screen_snapshot_bounds.ToCGRect(),
- kCGWindowListOptionIncludingWindow,
- [window windowNumber],
- kCGWindowImageBoundsIgnoreFraming));
- if (CGImageGetWidth(windowSnapshot) <= 0)
- return false;
- *image =
- gfx::Image([[[NSImage alloc] initWithCGImage:windowSnapshot
- size:NSZeroSize] autorelease]);
- return true;
- }
- bool GrabWindowSnapshot(gfx::NativeWindow native_window,
- const gfx::Rect& snapshot_bounds,
- gfx::Image* image) {
- // Make sure to grab the "window frame" view so we get current tab +
- // tabstrip.
- NSWindow* window = native_window.GetNativeNSWindow();
- return GrabViewSnapshot([[window contentView] superview], snapshot_bounds,
- image);
- }
- void GrabWindowSnapshotAndScaleAsync(
- gfx::NativeWindow window,
- const gfx::Rect& snapshot_bounds,
- const gfx::Size& target_size,
- GrabWindowSnapshotAsyncCallback callback) {
- std::move(callback).Run(gfx::Image());
- }
- void GrabViewSnapshotAsync(gfx::NativeView view,
- const gfx::Rect& source_rect,
- GrabWindowSnapshotAsyncCallback callback) {
- std::move(callback).Run(gfx::Image());
- }
- void GrabWindowSnapshotAsync(gfx::NativeWindow native_window,
- const gfx::Rect& source_rect,
- GrabWindowSnapshotAsyncCallback callback) {
- NSWindow* window = native_window.GetNativeNSWindow();
- return GrabViewSnapshotAsync([[window contentView] superview], source_rect,
- std::move(callback));
- }
- } // namespace ui
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