chromium_src/chrome/browser/ui/views/color_chooser_dialog.cc

   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
  17 using content::BrowserThread;
  18
  19 // static
  20 COLORREF ColorChooserDialog::g_custom_colors[16];
  21
  22 ColorChooserDialog::ExecuteOpenParams::ExecuteOpenParams(SkColor color,
  23                                                          RunState run_state,
  24                                                          HWND owner)
  25     : color(color),
  26       run_state(run_state),
  27       owner(owner) {
  28 }
  29
  30 ColorChooserDialog::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->task_runner()->PostTask(FROM_HERE,
  40       base::Bind(&ColorChooserDialog::ExecuteOpen, this, execute_params));
  41 }
  42
  43 ColorChooserDialog::~ColorChooserDialog() {
  44 }
  45
  46 bool ColorChooserDialog::IsRunning(gfx::NativeWindow owning_window) const {
  47   return listener_ && IsRunningDialogForOwner(
  48       views::HWNDForNativeWindow(owning_window));
  49 }
  50
  51 void 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
  57 void 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
  71 void 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
  83 void ColorChooserDialog::CopyCustomColors(COLORREF* src, COLORREF* dst) {
  84   memcpy(dst, src, sizeof(COLORREF) * arraysize(g_custom_colors));
  85 }