1 // Copyright 2013 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 #ifndef PRINTING_PRINTING_CONTEXT_ANDROID_H_ 6 #define PRINTING_PRINTING_CONTEXT_ANDROID_H_ 7 8 #include <jni.h> 9 10 #include <string> 11 12 #include "base/android/scoped_java_ref.h" 13 #include "printing/printing_context.h" 14 15 namespace printing { 16 17 // Android subclass of PrintingContext. The implementation for this header file 18 // resides in Chrome for Android repository. This class communicates with the 19 // Java side through JNI. 20 class PRINTING_EXPORT PrintingContextAndroid : public PrintingContext { 21 public: 22 explicit PrintingContextAndroid(Delegate* delegate); 23 virtual ~PrintingContextAndroid(); 24 25 // Called when the page is successfully written to a PDF using the file 26 // descriptor specified, or when the printing operation failed. 27 static void PdfWritingDone(int fd, bool success); 28 29 // Called from Java, when printing settings from the user are ready or the 30 // printing operation is canceled. 31 void AskUserForSettingsReply(JNIEnv* env, jobject obj, jboolean success); 32 33 // PrintingContext implementation. 34 virtual void AskUserForSettings( 35 int max_pages, 36 bool has_selection, 37 const PrintSettingsCallback& callback) OVERRIDE; 38 virtual Result UseDefaultSettings() OVERRIDE; 39 virtual gfx::Size GetPdfPaperSizeDeviceUnits() OVERRIDE; 40 virtual Result UpdatePrinterSettings(bool external_preview, 41 bool show_system_dialog) OVERRIDE; 42 virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE; 43 virtual Result NewDocument(const base::string16& document_name) OVERRIDE; 44 virtual Result NewPage() OVERRIDE; 45 virtual Result PageDone() OVERRIDE; 46 virtual Result DocumentDone() OVERRIDE; 47 virtual void Cancel() OVERRIDE; 48 virtual void ReleaseContext() OVERRIDE; 49 virtual gfx::NativeDrawingContext context() const OVERRIDE; 50 51 // Registers JNI bindings for RegisterContext. 52 static bool RegisterPrintingContext(JNIEnv* env); 53 54 private: 55 base::android::ScopedJavaGlobalRef<jobject> j_printing_context_; 56 57 // The callback from AskUserForSettings to be called when the settings are 58 // ready on the Java side 59 PrintSettingsCallback callback_; 60 61 DISALLOW_COPY_AND_ASSIGN(PrintingContextAndroid); 62 }; 63 64 } // namespace printing 65 66 #endif // PRINTING_PRINTING_CONTEXT_ANDROID_H_ 67 68
