color_chooser_dialog.cc revision 58537e28ecd584eab876aee8be7156509866d23a 
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
16using content::BrowserThread;
17
18// static
19COLORREF ColorChooserDialog::g_custom_colors[16];
20
21ColorChooserDialog::ExecuteOpenParams::ExecuteOpenParams(SkColor color,
22                                                         RunState run_state,
23                                                         HWND owner)
24    : color(color),
25      run_state(run_state),
26      owner(owner) {
27}
28
29ColorChooserDialog::ColorChooserDialog(views::ColorChooserListener* listener,
30                                       SkColor initial_color,
31                                       gfx::NativeWindow owning_window)
32    : listener_(listener) {
33  DCHECK(listener_);
34  CopyCustomColors(g_custom_colors, custom_colors_);
35  ExecuteOpenParams execute_params(initial_color, BeginRun(owning_window),
36                                   owning_window);
37  execute_params.run_state.dialog_thread->message_loop()->PostTask(FROM_HERE,
38      base::Bind(&ColorChooserDialog::ExecuteOpen, this, execute_params));
39}
40
41ColorChooserDialog::~ColorChooserDialog() {
42}
43
44bool ColorChooserDialog::IsRunning(HWND owning_hwnd) const {
45  return listener_ && IsRunningDialogForOwner(owning_hwnd);
46}
47
48void ColorChooserDialog::ListenerDestroyed() {
49  // Our associated listener has gone away, so we shouldn't call back to it if
50  // our worker thread returns after the listener is dead.
51  listener_ = NULL;
52}
53
54void ColorChooserDialog::ExecuteOpen(const ExecuteOpenParams& params) {
55  CHOOSECOLOR cc;
56  cc.lStructSize = sizeof(CHOOSECOLOR);
57  cc.hwndOwner = params.owner;
58  cc.rgbResult = skia::SkColorToCOLORREF(params.color);
59  cc.lpCustColors = custom_colors_;
60  cc.Flags = CC_ANYCOLOR | CC_FULLOPEN | CC_RGBINIT;
61  bool success = !!ChooseColor(&cc);
62  DisableOwner(cc.hwndOwner);
63  BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
64      base::Bind(&ColorChooserDialog::DidCloseDialog, this, success,
65                 skia::COLORREFToSkColor(cc.rgbResult), params.run_state));
66}
67
68void ColorChooserDialog::DidCloseDialog(bool chose_color,
69                                        SkColor color,
70                                        RunState run_state) {
71  EndRun(run_state);
72  CopyCustomColors(custom_colors_, g_custom_colors);
73  if (listener_) {
74    if (chose_color)
75      listener_->OnColorChosen(color);
76    listener_->OnColorChooserDialogClosed();
77  }
78}
79
80void ColorChooserDialog::CopyCustomColors(COLORREF* src, COLORREF* dst) {
81  memcpy(dst, src, sizeof(COLORREF) * arraysize(g_custom_colors));
82}
83