1// Copyright (c) 2012 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#include "chrome/browser/ui/views/color_chooser_dialog.h"
6
7#include <commdlg.h>
8
9#include "base/bind.h"
10#include "base/message_loop/message_loop.h"
11#include "base/threading/thread.h"
12#include "content/public/browser/browser_thread.h"
13#include "skia/ext/skia_utils_win.h"
14#include "ui/views/color_chooser/color_chooser_listener.h"
15#include "ui/views/win/hwnd_util.h"
16
17using content::BrowserThread;
18
19// static
20COLORREF ColorChooserDialog::g_custom_colors[16];
21
22ColorChooserDialog::ExecuteOpenParams::ExecuteOpenParams(SkColor color,
23                                                         RunState run_state,
24                                                         HWND owner)
25    : color(color),
26      run_state(run_state),
27      owner(owner) {
28}
29
30ColorChooserDialog::ColorChooserDialog(views::ColorChooserListener* listener,
31                                       SkColor initial_color,
32                                       gfx::NativeWindow owning_window)
33    : listener_(listener) {
34  DCHECK(listener_);
35  CopyCustomColors(g_custom_colors, custom_colors_);
36  HWND owning_hwnd = views::HWNDForNativeWindow(owning_window);
37  ExecuteOpenParams execute_params(initial_color, BeginRun(owning_hwnd),
38                                   owning_hwnd);
39  execute_params.run_state.dialog_thread->message_loop()->PostTask(FROM_HERE,
40      base::Bind(&ColorChooserDialog::ExecuteOpen, this, execute_params));
41}
42
43ColorChooserDialog::~ColorChooserDialog() {
44}
45
46bool ColorChooserDialog::IsRunning(gfx::NativeWindow owning_window) const {
47  return listener_ && IsRunningDialogForOwner(
48      views::HWNDForNativeWindow(owning_window));
49}
50
51void ColorChooserDialog::ListenerDestroyed() {
52  // Our associated listener has gone away, so we shouldn't call back to it if
53  // our worker thread returns after the listener is dead.
54  listener_ = NULL;
55}
56
57void ColorChooserDialog::ExecuteOpen(const ExecuteOpenParams& params) {
58  CHOOSECOLOR cc;
59  cc.lStructSize = sizeof(CHOOSECOLOR);
60  cc.hwndOwner = params.owner;
61  cc.rgbResult = skia::SkColorToCOLORREF(params.color);
62  cc.lpCustColors = custom_colors_;
63  cc.Flags = CC_ANYCOLOR | CC_FULLOPEN | CC_RGBINIT;
64  bool success = !!ChooseColor(&cc);
65  DisableOwner(cc.hwndOwner);
66  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
67      base::Bind(&ColorChooserDialog::DidCloseDialog, this, success,
68                 skia::COLORREFToSkColor(cc.rgbResult), params.run_state));
69}
70
71void ColorChooserDialog::DidCloseDialog(bool chose_color,
72                                        SkColor color,
73                                        RunState run_state) {
74  EndRun(run_state);
75  CopyCustomColors(custom_colors_, g_custom_colors);
76  if (listener_) {
77    if (chose_color)
78      listener_->OnColorChosen(color);
79    listener_->OnColorChooserDialogClosed();
80  }
81}
82
83void ColorChooserDialog::CopyCustomColors(COLORREF* src, COLORREF* dst) {
84  memcpy(dst, src, sizeof(COLORREF) * arraysize(g_custom_colors));
85}
86