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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #import "ui/views/cocoa/drag_drop_client_mac.h" | |
6 | |
7 #include "base/mac/mac_util.h" | |
8 #include "base/strings/sys_string_conversions.h" | |
9 #include "ui/base/dragdrop/os_exchange_data.h" | |
10 #import "ui/base/dragdrop/os_exchange_data_provider_mac.h" | |
11 #include "ui/gfx/image/image_skia_util_mac.h" | |
12 #include "ui/views/drag_utils.h" | |
13 #import "ui/views/cocoa/bridged_content_view.h" | |
14 #import "ui/views/cocoa/bridged_native_widget.h" | |
15 #include "ui/views/widget/drop_helper.h" | |
16 #include "ui/views/widget/native_widget_mac.h" | |
17 | |
18 @interface CocoaDragDropDataProvider () { | |
19 std::unique_ptr<ui::OSExchangeData> data_; | |
20 } | |
21 | |
22 @end | |
23 | |
24 @implementation CocoaDragDropDataProvider | |
25 | |
26 - (id)initWithData:(const ui::OSExchangeData&)data { | |
27 if ((self = [super init])) { | |
28 data_.reset(new OSExchangeData(data.provider().Clone())); | |
29 } | |
30 return self; | |
31 } | |
32 | |
33 - (id)initWithPasteboard:(NSPasteboard*)pasteboard { | |
34 if ((self = [super init])) { | |
35 data_ = ui::OSExchangeDataProviderMac::CreateDataFromPasteboard(pasteboard); | |
36 } | |
37 return self; | |
38 } | |
39 | |
40 - (ui::OSExchangeData*)data { | |
41 return data_.get(); | |
42 } | |
43 | |
44 // NSPasteboardItemDataProvider protocol implementation. | |
45 | |
46 - (void)pasteboard:(NSPasteboard*)sender | |
47 item:(NSPasteboardItem*)item | |
48 provideDataForType:(NSString*)type { | |
49 const ui::OSExchangeDataProviderMac* provider = | |
50 static_cast<const ui::OSExchangeDataProviderMac*>(&data_->provider()); | |
51 NSData* ns_data = provider->GetNSDataForType(type); | |
52 [sender setData:ns_data forType:type]; | |
53 } | |
54 | |
55 @end | |
56 | |
57 namespace views { | |
58 | |
59 DragDropClientMac::DragDropClientMac(BridgedNativeWidget* bridge) | |
60 : operation_(0), bridge_(bridge) { | |
61 DCHECK(bridge); | |
62 drop_helper_.reset(new DropHelper([bridge->ns_view() hostedView])); | |
63 } | |
64 | |
65 DragDropClientMac::~DragDropClientMac() {} | |
66 | |
67 void DragDropClientMac::StartDragAndDrop( | |
68 View* view, | |
69 const ui::OSExchangeData& data, | |
70 const gfx::Point& location, | |
71 int operation, | |
72 ui::DragDropTypes::DragEventSource source) { | |
73 data_source_.reset([[CocoaDragDropDataProvider alloc] initWithData:data]); | |
74 view_ = view; | |
75 operation_ = operation; | |
76 | |
77 const ui::OSExchangeDataProviderMac& provider = | |
78 static_cast<const ui::OSExchangeDataProviderMac&>(data.provider()); | |
79 | |
80 // Synthesize an event for dragging, since we can't be sure that | |
81 // [NSApp currentEvent] will return a valid dragging event. | |
82 NSWindow* window = bridge_->ns_window(); | |
83 NSPoint position = [window mouseLocationOutsideOfEventStream]; | |
84 NSTimeInterval event_time = [[NSApp currentEvent] timestamp]; | |
85 NSEvent* event = [NSEvent mouseEventWithType:NSLeftMouseDragged | |
86 location:position | |
87 modifierFlags:NSLeftMouseDraggedMask | |
88 timestamp:event_time | |
89 windowNumber:[window windowNumber] | |
90 context:nil | |
91 eventNumber:0 | |
92 clickCount:1 | |
93 pressure:1.0]; | |
94 | |
95 NSImage* image = gfx::NSImageFromImageSkiaWithColorSpace( | |
96 provider.GetDragImage(), base::mac::GetSRGBColorSpace()); | |
97 | |
98 base::scoped_nsobject<NSPasteboardItem> item([[NSPasteboardItem alloc] init]); | |
99 [item setDataProvider:data_source_.get() | |
100 forTypes:provider.GetPasteboardTypes()]; | |
101 | |
102 base::scoped_nsobject<NSDraggingItem> dragItem( | |
103 [[NSDraggingItem alloc] initWithPasteboardWriter:item.get()]); | |
104 NSRect draggingFrame = | |
105 NSMakeRect([event locationInWindow].x, | |
106 [event locationInWindow].y - [image size].height, | |
107 [image size].width, [image size].height); | |
108 [dragItem setDraggingFrame:draggingFrame contents:image]; | |
109 | |
110 [bridge_->ns_view() beginDraggingSessionWithItems:@[ dragItem.get() ] | |
111 event:event | |
112 source:nil]; | |
tapted
2016/05/26 12:31:42
ping? (The 10.11 SDK requires this to be non-nil)
spqchan
2016/05/27 23:25:48
Ah sorry, it looks like when I switched branches,
| |
113 } | |
114 | |
115 NSDragOperation DragDropClientMac::DragUpdate(id<NSDraggingInfo> sender) { | |
116 int drag_operation = ui::DragDropTypes::DRAG_NONE; | |
117 | |
118 // Since dragging from non MacView sources does not generate OSExchangeData, | |
119 // we need to generate one based on the provided pasteboard. | |
120 if (!data_source_.get()) { | |
121 data_source_.reset([[CocoaDragDropDataProvider alloc] | |
122 initWithPasteboard:[sender draggingPasteboard]]); | |
123 } | |
124 | |
125 drag_operation = drop_helper_->OnDragOver( | |
126 *[data_source_ data], LocationInView([sender draggingLocation]), | |
127 operation_); | |
128 return ui::DragDropTypes::DragOperationToNSDragOperation(drag_operation); | |
129 } | |
130 | |
131 NSDragOperation DragDropClientMac::Drop(id<NSDraggingInfo> sender) { | |
132 int drag_operation = drop_helper_->OnDrop( | |
133 *[data_source_ data], LocationInView([sender draggingLocation]), | |
134 operation_); | |
135 return ui::DragDropTypes::DragOperationToNSDragOperation(drag_operation); | |
136 } | |
137 | |
138 void DragDropClientMac::EndDrag() { | |
139 bridge_->native_widget_mac()->GetWidget()->DraggingEnded(view_); | |
140 view_ = nullptr; | |
141 data_source_.reset(); | |
142 } | |
143 | |
144 void DragDropClientMac::SetRootView(View* view) { | |
145 drop_helper_.reset(new DropHelper(view)); | |
146 } | |
147 | |
148 gfx::Point DragDropClientMac::LocationInView(NSPoint point) const { | |
149 return gfx::Point(point.x, NSHeight([bridge_->ns_window() frame]) - point.y); | |
150 } | |
151 | |
152 } // namespace views | |
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