summaryrefslogtreecommitdiffstats
path: root/layout/printing/ipc/RemotePrintJobChild.cpp
blob: bc922724515382134e60c928ab1fda4f35827a22 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "RemotePrintJobChild.h"

#include "mozilla/SpinEventLoopUntil.h"
#include "mozilla/Unused.h"
#include "nsPagePrintTimer.h"
#include "nsPrintJob.h"
#include "private/pprio.h"

namespace mozilla {
namespace layout {

NS_IMPL_ISUPPORTS(RemotePrintJobChild, nsIWebProgressListener)

RemotePrintJobChild::RemotePrintJobChild() = default;

nsresult RemotePrintJobChild::InitializePrint(const nsString& aDocumentTitle,
                                              const int32_t& aStartPage,
                                              const int32_t& aEndPage) {
  // Print initialization can sometimes display a dialog in the parent, so we
  // need to spin a nested event loop until initialization completes.
  Unused << SendInitializePrint(aDocumentTitle, aStartPage, aEndPage);
  mozilla::SpinEventLoopUntil("RemotePrintJobChild::InitializePrint"_ns,
                              [&]() { return mPrintInitialized; });

  return mInitializationResult;
}

mozilla::ipc::IPCResult RemotePrintJobChild::RecvPrintInitializationResult(
    const nsresult& aRv, const mozilla::ipc::FileDescriptor& aFd) {
  mPrintInitialized = true;
  mInitializationResult = aRv;
  if (NS_SUCCEEDED(aRv)) {
    SetNextPageFD(aFd);
  }
  return IPC_OK();
}

PRFileDesc* RemotePrintJobChild::GetNextPageFD() {
  MOZ_ASSERT(!mDestroyed);
  MOZ_ASSERT(mNextPageFD);
  PRFileDesc* fd = mNextPageFD;
  mNextPageFD = nullptr;
  return fd;
}

void RemotePrintJobChild::SetNextPageFD(
    const mozilla::ipc::FileDescriptor& aFd) {
  MOZ_ASSERT(!mDestroyed);
  auto handle = aFd.ClonePlatformHandle();
  mNextPageFD = PR_ImportFile(PROsfd(handle.release()));
}

void RemotePrintJobChild::ProcessPage(const IntSize& aSizeInPoints,
                                      nsTArray<uint64_t>&& aDeps) {
  MOZ_ASSERT(mPagePrintTimer);

  mPagePrintTimer->WaitForRemotePrint();
  if (!mDestroyed) {
    Unused << SendProcessPage(aSizeInPoints.width, aSizeInPoints.height,
                              std::move(aDeps));
  }
}

mozilla::ipc::IPCResult RemotePrintJobChild::RecvPageProcessed(
    const mozilla::ipc::FileDescriptor& aFd) {
  MOZ_ASSERT(mPagePrintTimer);
  SetNextPageFD(aFd);

  mPagePrintTimer->RemotePrintFinished();
  return IPC_OK();
}

mozilla::ipc::IPCResult RemotePrintJobChild::RecvAbortPrint(
    const nsresult& aRv) {
  MOZ_ASSERT(mPrintJob);

  mPrintJob->CleanupOnFailure(aRv, true);
  return IPC_OK();
}

void RemotePrintJobChild::SetPagePrintTimer(nsPagePrintTimer* aPagePrintTimer) {
  MOZ_ASSERT(!mDestroyed);
  MOZ_ASSERT(aPagePrintTimer);

  mPagePrintTimer = aPagePrintTimer;
}

void RemotePrintJobChild::SetPrintJob(nsPrintJob* aPrintJob) {
  MOZ_ASSERT(!mDestroyed);
  MOZ_ASSERT(aPrintJob);

  mPrintJob = aPrintJob;
}

// nsIWebProgressListener

NS_IMETHODIMP
RemotePrintJobChild::OnStateChange(nsIWebProgress* aProgress,
                                   nsIRequest* aRequest, uint32_t aStateFlags,
                                   nsresult aStatus) {
  // `RemotePrintJobParent` emits its own state change events based on its
  // own progress & the actor lifecycle, so any forwarded event here would get
  // ignored.
  return NS_OK;
}

NS_IMETHODIMP
RemotePrintJobChild::OnProgressChange(nsIWebProgress* aProgress,
                                      nsIRequest* aRequest,
                                      int32_t aCurSelfProgress,
                                      int32_t aMaxSelfProgress,
                                      int32_t aCurTotalProgress,
                                      int32_t aMaxTotalProgress) {
  if (!mDestroyed) {
    Unused << SendProgressChange(aCurSelfProgress, aMaxSelfProgress,
                                 aCurTotalProgress, aMaxTotalProgress);
  }

  return NS_OK;
}

NS_IMETHODIMP
RemotePrintJobChild::OnLocationChange(nsIWebProgress* aProgress,
                                      nsIRequest* aRequest, nsIURI* aURI,
                                      uint32_t aFlags) {
  return NS_OK;
}

NS_IMETHODIMP
RemotePrintJobChild::OnStatusChange(nsIWebProgress* aProgress,
                                    nsIRequest* aRequest, nsresult aStatus,
                                    const char16_t* aMessage) {
  if (NS_SUCCEEDED(mInitializationResult) && !mDestroyed) {
    Unused << SendStatusChange(aStatus);
  }

  return NS_OK;
}

NS_IMETHODIMP
RemotePrintJobChild::OnSecurityChange(nsIWebProgress* aProgress,
                                      nsIRequest* aRequest, uint32_t aState) {
  return NS_OK;
}

NS_IMETHODIMP
RemotePrintJobChild::OnContentBlockingEvent(nsIWebProgress* aProgress,
                                            nsIRequest* aRequest,
                                            uint32_t aEvent) {
  return NS_OK;
}

// End of nsIWebProgressListener

RemotePrintJobChild::~RemotePrintJobChild() = default;

void RemotePrintJobChild::ActorDestroy(ActorDestroyReason aWhy) {
  mPagePrintTimer = nullptr;
  mPrintJob = nullptr;

  mDestroyed = true;
}

}  // namespace layout
}  // namespace mozilla