components/pdf/renderer/pepper_pdf_host.h

   1 // Copyright 2014 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 COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_
   6 #define COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/compiler_specific.h"
  12 #include "base/strings/string16.h"
  13 #include "ipc/ipc_platform_file.h"
  14 #include "ppapi/c/ppb_image_data.h"
  15 #include "ppapi/c/private/ppb_pdf.h"
  16 #include "ppapi/host/resource_host.h"
  17 #include "ppapi/proxy/serialized_structs.h"
  18
  19 struct PP_ImageDataDesc;
  20 struct PP_Size;
  21 class SkBitmap;
  22
  23 namespace content {
  24 class RendererPpapiHost;
  25 }
  26
  27 namespace ppapi {
  28 class HostResource;
  29 }
  30
  31 namespace ppapi {
  32 namespace host {
  33 struct HostMessageContext;
  34 }
  35 }
  36
  37 namespace pdf {
  38
  39 class PepperPDFHost : public ppapi::host::ResourceHost {
  40  public:
  41   class PrintClient {
  42    public:
  43     virtual ~PrintClient() {}
  44
  45     // Returns whether printing is enabled for the plugin instance identified by
  46     // |instance_id|.
  47     virtual bool IsPrintingEnabled(PP_Instance instance_id) = 0;
  48
  49     // Invokes the "Print" command for the plugin instance identified by
  50     // |instance_id|. Returns whether the "Print" command was issued or not.
  51     virtual bool Print(PP_Instance instance_id) = 0;
  52   };
  53
  54   PepperPDFHost(content::RendererPpapiHost* host,
  55                 PP_Instance instance,
  56                 PP_Resource resource);
  57   ~PepperPDFHost() override;
  58
  59   // Invokes the "Print" command for the given instance as if the user right
  60   // clicked on it and selected "Print". Returns if the "Print" command was
  61   // issued or not.
  62   static bool InvokePrintingForInstance(PP_Instance instance);
  63
  64   // The caller retains the ownership of |print_client|. The client is
  65   // allowed to be set only once, and when set, the client must outlive the
  66   // PPB_PDF_Impl instance.
  67   static void SetPrintClient(PrintClient* print_client);
  68
  69   int32_t OnResourceMessageReceived(
  70       const IPC::Message& msg,
  71       ppapi::host::HostMessageContext* context) override;
  72
  73  private:
  74   int32_t OnHostMsgGetLocalizedString(ppapi::host::HostMessageContext* context,
  75                                       PP_ResourceString string_id);
  76   int32_t OnHostMsgDidStartLoading(ppapi::host::HostMessageContext* context);
  77   int32_t OnHostMsgDidStopLoading(ppapi::host::HostMessageContext* context);
  78   int32_t OnHostMsgSetContentRestriction(
  79       ppapi::host::HostMessageContext* context,
  80       int restrictions);
  81   int32_t OnHostMsgUserMetricsRecordAction(
  82       ppapi::host::HostMessageContext* context,
  83       const std::string& action);
  84   int32_t OnHostMsgHasUnsupportedFeature(
  85       ppapi::host::HostMessageContext* context);
  86   int32_t OnHostMsgPrint(ppapi::host::HostMessageContext* context);
  87   int32_t OnHostMsgSaveAs(ppapi::host::HostMessageContext* context);
  88   int32_t OnHostMsgSetSelectedText(ppapi::host::HostMessageContext* context,
  89                                    const base::string16& selected_text);
  90   int32_t OnHostMsgSetLinkUnderCursor(ppapi::host::HostMessageContext* context,
  91                                       const std::string& url);
  92
  93   content::RendererPpapiHost* host_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(PepperPDFHost);
  96 };
  97
  98 }  // namespace pdf
  99
 100 #endif  // COMPONENTS_PDF_RENDERER_PEPPER_PDF_HOST_H_