1 files changed, 111 insertions, 0 deletions
diff --git a/toolkit/components/printingui/ipc/PrintProgressDialogParent.cpp b/toolkit/components/printingui/ipc/PrintProgressDialogParent.cpp
new file mode 100644
index 0000000000..fcc463808b
--- /dev/null
+++ b/toolkit/components/printingui/ipc/PrintProgressDialogParent.cpp
@@ -0,0 +1,111 @@
+/* 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 "mozilla/Unused.h"
+#include "nsIWebProgressListener.h"
+#include "PrintProgressDialogParent.h"
+
+using mozilla::Unused;
+
+namespace mozilla {
+namespace embedding {
+
+NS_IMPL_ISUPPORTS(PrintProgressDialogParent, nsIObserver)
+
+PrintProgressDialogParent::PrintProgressDialogParent() : mActive(true) {}
+
+PrintProgressDialogParent::~PrintProgressDialogParent() = default;
+
+void PrintProgressDialogParent::SetWebProgressListener(
+    nsIWebProgressListener* aListener) {
+  mWebProgressListener = aListener;
+}
+
+void PrintProgressDialogParent::SetPrintProgressParams(
+    nsIPrintProgressParams* aParams) {
+  mPrintProgressParams = aParams;
+}
+
+mozilla::ipc::IPCResult PrintProgressDialogParent::RecvStateChange(
+    const long& stateFlags, const nsresult& status) {
+  if (mWebProgressListener) {
+    mWebProgressListener->OnStateChange(nullptr, nullptr, stateFlags, status);
+  }
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult PrintProgressDialogParent::RecvProgressChange(
+    const long& curSelfProgress, const long& maxSelfProgress,
+    const long& curTotalProgress, const long& maxTotalProgress) {
+  if (mWebProgressListener) {
+    mWebProgressListener->OnProgressChange(nullptr, nullptr, curSelfProgress,
+                                           maxSelfProgress, curTotalProgress,
+                                           maxTotalProgress);
+  }
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult PrintProgressDialogParent::RecvDocTitleChange(
+    const nsString& newTitle) {
+  if (mPrintProgressParams) {
+    mPrintProgressParams->SetDocTitle(newTitle);
+  }
+  return IPC_OK();
+}
+
+mozilla::ipc::IPCResult PrintProgressDialogParent::RecvDocURLChange(
+    const nsString& newURL) {
+  if (mPrintProgressParams) {
+    mPrintProgressParams->SetDocURL(newURL);
+  }
+  return IPC_OK();
+}
+
+void PrintProgressDialogParent::ActorDestroy(ActorDestroyReason aWhy) {
+  // If IPC actor is destroyed, we can't send to child via IPC.
+  mActive = false;
+}
+
+mozilla::ipc::IPCResult PrintProgressDialogParent::Recv__delete__() {
+  // The child has requested that we tear down the connection, so we set a
+  // member to make sure we don't try to contact it after the fact.
+  mActive = false;
+  return IPC_OK();
+}
+
+// nsIObserver
+NS_IMETHODIMP
+PrintProgressDialogParent::Observe(nsISupports* aSubject, const char* aTopic,
+                                   const char16_t* aData) {
+  if (mActive) {
+    if (aTopic) {
+      if (!strcmp(aTopic, "cancelled")) {
+        Unused << SendCancelledCurrentJob();
+        if (!mDialogOpenedSent) {
+          // We haven't already called SendDialogOpened, so call it now or it
+          // might never get sent and block the child from new printing
+          // requests. Also set mActive to false because we don't want to send
+          // it twice and our PrintProgressDialogChild will get deleted anyway.
+          Unused << SendDialogOpened();
+          mActive = false;
+        }
+      } else if (!strcmp(aTopic, "completed")) {
+        // Once printing is complete don't send any messages to the child.
+        mActive = false;
+      }
+    } else {
+      Unused << SendDialogOpened();
+      mDialogOpenedSent = true;
+    }
+  } else {
+    NS_WARNING(
+        "The print progress dialog finished opening, but communications "
+        "with the child have been closed.");
+  }
+
+  return NS_OK;
+}
+
+}  // namespace embedding
+}  // namespace mozilla