dom/ipc/ColorPickerParent.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "ColorPickerParent.h"
   8 #include "nsComponentManagerUtils.h"
   9 #include "mozilla/dom/Document.h"
  10 #include "mozilla/Unused.h"
  11 #include "mozilla/dom/Element.h"
  12 #include "mozilla/dom/BrowserParent.h"
  13
  14 using mozilla::Unused;
  15 using namespace mozilla::dom;
  16
  17 NS_IMPL_ISUPPORTS(ColorPickerParent::ColorPickerShownCallback,
  18                   nsIColorPickerShownCallback);
  19
  20 NS_IMETHODIMP
  21 ColorPickerParent::ColorPickerShownCallback::Update(const nsAString& aColor) {
  22   if (mColorPickerParent) {
  23     Unused << mColorPickerParent->SendUpdate(aColor);
  24   }
  25   return NS_OK;
  26 }
  27
  28 NS_IMETHODIMP
  29 ColorPickerParent::ColorPickerShownCallback::Done(const nsAString& aColor) {
  30   if (mColorPickerParent) {
  31     Unused << ColorPickerParent::Send__delete__(mColorPickerParent, aColor);
  32   }
  33   return NS_OK;
  34 }
  35
  36 void ColorPickerParent::ColorPickerShownCallback::Destroy() {
  37   mColorPickerParent = nullptr;
  38 }
  39
  40 bool ColorPickerParent::CreateColorPicker() {
  41   mPicker = do_CreateInstance("@mozilla.org/colorpicker;1");
  42   if (!mPicker) {
  43     return false;
  44   }
  45
  46   Element* ownerElement = BrowserParent::GetFrom(Manager())->GetOwnerElement();
  47   if (!ownerElement) {
  48     return false;
  49   }
  50
  51   nsCOMPtr<nsPIDOMWindowOuter> window = ownerElement->OwnerDoc()->GetWindow();
  52   if (!window) {
  53     return false;
  54   }
  55
  56   return NS_SUCCEEDED(
  57       mPicker->Init(window, mTitle, mInitialColor, mDefaultColors));
  58 }
  59
  60 mozilla::ipc::IPCResult ColorPickerParent::RecvOpen() {
  61   if (!CreateColorPicker()) {
  62     Unused << Send__delete__(this, mInitialColor);
  63     return IPC_OK();
  64   }
  65
  66   MOZ_ASSERT(!mCallback);
  67   mCallback = new ColorPickerShownCallback(this);
  68
  69   mPicker->Open(mCallback);
  70   return IPC_OK();
  71 };
  72
  73 void ColorPickerParent::ActorDestroy(ActorDestroyReason aWhy) {
  74   if (mCallback) {
  75     mCallback->Destroy();
  76   }
  77 }