pdf/out_of_process_instance.cc

   1 // Copyright (c) 2012 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 #include "pdf/out_of_process_instance.h"
   6
   7 #include <algorithm>  // for min/max()
   8 #define _USE_MATH_DEFINES  // for M_PI
   9 #include <cmath>      // for log() and pow()
  10 #include <math.h>
  11 #include <list>
  12
  13 #include "base/json/json_reader.h"
  14 #include "base/json/json_writer.h"
  15 #include "base/logging.h"
  16 #include "base/strings/string_number_conversions.h"
  17 #include "base/strings/string_split.h"
  18 #include "base/strings/string_util.h"
  19 #include "base/values.h"
  20 #include "chrome/common/content_restriction.h"
  21 #include "net/base/escape.h"
  22 #include "pdf/pdf.h"
  23 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
  24 #include "ppapi/c/pp_errors.h"
  25 #include "ppapi/c/pp_rect.h"
  26 #include "ppapi/c/private/ppb_instance_private.h"
  27 #include "ppapi/c/private/ppp_pdf.h"
  28 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
  29 #include "ppapi/cpp/core.h"
  30 #include "ppapi/cpp/dev/memory_dev.h"
  31 #include "ppapi/cpp/dev/text_input_dev.h"
  32 #include "ppapi/cpp/dev/url_util_dev.h"
  33 #include "ppapi/cpp/module.h"
  34 #include "ppapi/cpp/point.h"
  35 #include "ppapi/cpp/private/pdf.h"
  36 #include "ppapi/cpp/private/var_private.h"
  37 #include "ppapi/cpp/rect.h"
  38 #include "ppapi/cpp/resource.h"
  39 #include "ppapi/cpp/url_request_info.h"
  40 #include "ppapi/cpp/var_array.h"
  41 #include "ppapi/cpp/var_dictionary.h"
  42 #include "ui/events/keycodes/keyboard_codes.h"
  43 #include "v8/include/v8.h"
  44
  45 #if defined(OS_MACOSX)
  46 #include "base/mac/mac_util.h"
  47 #endif
  48
  49 namespace chrome_pdf {
  50
  51 const char kChromePrint[] = "chrome://print/";
  52 const char kChromeExtension[] =
  53     "chrome-extension://mhjfbmdgcfjbbpaeojofohoefgiehjai";
  54
  55 // Dictionary Value key names for the document accessibility info
  56 const char kAccessibleNumberOfPages[] = "numberOfPages";
  57 const char kAccessibleLoaded[] = "loaded";
  58 const char kAccessibleCopyable[] = "copyable";
  59
  60 // Constants used in handling postMessage() messages.
  61 const char kType[] = "type";
  62 // Viewport message arguments. (Page -> Plugin).
  63 const char kJSViewportType[] = "viewport";
  64 const char kJSXOffset[] = "xOffset";
  65 const char kJSYOffset[] = "yOffset";
  66 const char kJSZoom[] = "zoom";
  67 // Stop scrolling message (Page -> Plugin)
  68 const char kJSStopScrollingType[] = "stopScrolling";
  69 // Document dimension arguments (Plugin -> Page).
  70 const char kJSDocumentDimensionsType[] = "documentDimensions";
  71 const char kJSDocumentWidth[] = "width";
  72 const char kJSDocumentHeight[] = "height";
  73 const char kJSPageDimensions[] = "pageDimensions";
  74 const char kJSPageX[] = "x";
  75 const char kJSPageY[] = "y";
  76 const char kJSPageWidth[] = "width";
  77 const char kJSPageHeight[] = "height";
  78 // Document load progress arguments (Plugin -> Page)
  79 const char kJSLoadProgressType[] = "loadProgress";
  80 const char kJSProgressPercentage[] = "progress";
  81 // Get password arguments (Plugin -> Page)
  82 const char kJSGetPasswordType[] = "getPassword";
  83 // Get password complete arguments (Page -> Plugin)
  84 const char kJSGetPasswordCompleteType[] = "getPasswordComplete";
  85 const char kJSPassword[] = "password";
  86 // Print (Page -> Plugin)
  87 const char kJSPrintType[] = "print";
  88 // Save (Page -> Plugin)
  89 const char kJSSaveType[] = "save";
  90 // Go to page (Plugin -> Page)
  91 const char kJSGoToPageType[] = "goToPage";
  92 const char kJSPageNumber[] = "page";
  93 // Reset print preview mode (Page -> Plugin)
  94 const char kJSResetPrintPreviewModeType[] = "resetPrintPreviewMode";
  95 const char kJSPrintPreviewUrl[] = "url";
  96 const char kJSPrintPreviewGrayscale[] = "grayscale";
  97 const char kJSPrintPreviewPageCount[] = "pageCount";
  98 // Load preview page (Page -> Plugin)
  99 const char kJSLoadPreviewPageType[] = "loadPreviewPage";
 100 const char kJSPreviewPageUrl[] = "url";
 101 const char kJSPreviewPageIndex[] = "index";
 102 // Set scroll position (Plugin -> Page)
 103 const char kJSSetScrollPositionType[] = "setScrollPosition";
 104 const char kJSPositionX[] = "x";
 105 const char kJSPositionY[] = "y";
 106 // Set translated strings (Plugin -> Page)
 107 const char kJSSetTranslatedStringsType[] = "setTranslatedStrings";
 108 const char kJSGetPasswordString[] = "getPasswordString";
 109 const char kJSLoadingString[] = "loadingString";
 110 const char kJSLoadFailedString[] = "loadFailedString";
 111 // Request accessibility JSON data (Page -> Plugin)
 112 const char kJSGetAccessibilityJSONType[] = "getAccessibilityJSON";
 113 const char kJSAccessibilityPageNumber[] = "page";
 114 // Reply with accessibility JSON data (Plugin -> Page)
 115 const char kJSGetAccessibilityJSONReplyType[] = "getAccessibilityJSONReply";
 116 const char kJSAccessibilityJSON[] = "json";
 117 // Cancel the stream URL request (Plugin -> Page)
 118 const char kJSCancelStreamUrlType[] = "cancelStreamUrl";
 119 // Navigate to the given URL (Plugin -> Page)
 120 const char kJSNavigateType[] = "navigate";
 121 const char kJSNavigateUrl[] = "url";
 122 const char kJSNavigateNewTab[] = "newTab";
 123 // Open the email editor with the given parameters (Plugin -> Page)
 124 const char kJSEmailType[] = "email";
 125 const char kJSEmailTo[] = "to";
 126 const char kJSEmailCc[] = "cc";
 127 const char kJSEmailBcc[] = "bcc";
 128 const char kJSEmailSubject[] = "subject";
 129 const char kJSEmailBody[] = "body";
 130 // Rotation (Page -> Plugin)
 131 const char kJSRotateClockwiseType[] = "rotateClockwise";
 132 const char kJSRotateCounterclockwiseType[] = "rotateCounterclockwise";
 133 // Select all text in the document (Page -> Plugin)
 134 const char kJSSelectAllType[] = "selectAll";
 135
 136 const int kFindResultCooldownMs = 100;
 137
 138 const double kMinZoom = 0.01;
 139
 140 namespace {
 141
 142 static const char kPPPPdfInterface[] = PPP_PDF_INTERFACE_1;
 143
 144 PP_Var GetLinkAtPosition(PP_Instance instance, PP_Point point) {
 145   pp::Var var;
 146   void* object = pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 147   if (object) {
 148     var = static_cast<OutOfProcessInstance*>(object)->GetLinkAtPosition(
 149         pp::Point(point));
 150   }
 151   return var.Detach();
 152 }
 153
 154 void Transform(PP_Instance instance, PP_PrivatePageTransformType type) {
 155   void* object =
 156       pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 157   if (object) {
 158     OutOfProcessInstance* obj_instance =
 159         static_cast<OutOfProcessInstance*>(object);
 160     switch (type) {
 161       case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW:
 162         obj_instance->RotateClockwise();
 163         break;
 164       case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CCW:
 165         obj_instance->RotateCounterclockwise();
 166         break;
 167     }
 168   }
 169 }
 170
 171 PP_Bool GetPrintPresetOptionsFromDocument(
 172     PP_Instance instance,
 173     PP_PdfPrintPresetOptions_Dev* options) {
 174   void* object = pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
 175   if (object) {
 176     OutOfProcessInstance* obj_instance =
 177         static_cast<OutOfProcessInstance*>(object);
 178     obj_instance->GetPrintPresetOptionsFromDocument(options);
 179   }
 180   return PP_TRUE;
 181 }
 182
 183 const PPP_Pdf ppp_private = {
 184   &GetLinkAtPosition,
 185   &Transform,
 186   &GetPrintPresetOptionsFromDocument
 187 };
 188
 189 int ExtractPrintPreviewPageIndex(const std::string& src_url) {
 190   // Sample |src_url| format: chrome://print/id/page_index/print.pdf
 191   std::vector<std::string> url_substr;
 192   base::SplitString(src_url.substr(strlen(kChromePrint)), '/', &url_substr);
 193   if (url_substr.size() != 3)
 194     return -1;
 195
 196   if (url_substr[2] != "print.pdf")
 197     return -1;
 198
 199   int page_index = 0;
 200   if (!base::StringToInt(url_substr[1], &page_index))
 201     return -1;
 202   return page_index;
 203 }
 204
 205 bool IsPrintPreviewUrl(const std::string& url) {
 206   return url.substr(0, strlen(kChromePrint)) == kChromePrint;
 207 }
 208
 209 void ScalePoint(float scale, pp::Point* point) {
 210   point->set_x(static_cast<int>(point->x() * scale));
 211   point->set_y(static_cast<int>(point->y() * scale));
 212 }
 213
 214 void ScaleRect(float scale, pp::Rect* rect) {
 215   int left = static_cast<int>(floorf(rect->x() * scale));
 216   int top = static_cast<int>(floorf(rect->y() * scale));
 217   int right = static_cast<int>(ceilf((rect->x() + rect->width()) * scale));
 218   int bottom = static_cast<int>(ceilf((rect->y() + rect->height()) * scale));
 219   rect->SetRect(left, top, right - left, bottom - top);
 220 }
 221
 222 // TODO(raymes): Remove this dependency on VarPrivate/InstancePrivate. It's
 223 // needed right now to do a synchronous call to JavaScript, but we could easily
 224 // replace this with a custom PPB_PDF function.
 225 pp::Var ModalDialog(const pp::Instance* instance,
 226                     const std::string& type,
 227                     const std::string& message,
 228                     const std::string& default_answer) {
 229   const PPB_Instance_Private* interface =
 230       reinterpret_cast<const PPB_Instance_Private*>(
 231           pp::Module::Get()->GetBrowserInterface(
 232               PPB_INSTANCE_PRIVATE_INTERFACE));
 233   pp::VarPrivate window(pp::PASS_REF,
 234       interface->GetWindowObject(instance->pp_instance()));
 235   if (default_answer.empty())
 236     return window.Call(type, message);
 237   else
 238     return window.Call(type, message, default_answer);
 239 }
 240
 241 }  // namespace
 242
 243 OutOfProcessInstance::OutOfProcessInstance(PP_Instance instance)
 244     : pp::Instance(instance),
 245       pp::Find_Private(this),
 246       pp::Printing_Dev(this),
 247       pp::Selection_Dev(this),
 248       cursor_(PP_CURSORTYPE_POINTER),
 249       zoom_(1.0),
 250       device_scale_(1.0),
 251       printing_enabled_(true),
 252       full_(false),
 253       paint_manager_(this, this, true),
 254       first_paint_(true),
 255       document_load_state_(LOAD_STATE_LOADING),
 256       preview_document_load_state_(LOAD_STATE_COMPLETE),
 257       uma_(this),
 258       told_browser_about_unsupported_feature_(false),
 259       print_preview_page_count_(0),
 260       last_progress_sent_(0),
 261       recently_sent_find_update_(false),
 262       received_viewport_message_(false),
 263       did_call_start_loading_(false),
 264       stop_scrolling_(false) {
 265   loader_factory_.Initialize(this);
 266   timer_factory_.Initialize(this);
 267   form_factory_.Initialize(this);
 268   print_callback_factory_.Initialize(this);
 269   engine_.reset(PDFEngine::Create(this));
 270   pp::Module::Get()->AddPluginInterface(kPPPPdfInterface, &ppp_private);
 271   AddPerInstanceObject(kPPPPdfInterface, this);
 272
 273   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_MOUSE);
 274   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_KEYBOARD);
 275   RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_TOUCH);
 276 }
 277
 278 OutOfProcessInstance::~OutOfProcessInstance() {
 279   RemovePerInstanceObject(kPPPPdfInterface, this);
 280 }
 281
 282 bool OutOfProcessInstance::Init(uint32_t argc,
 283                                 const char* argn[],
 284                                 const char* argv[]) {
 285   v8::StartupData natives;
 286   v8::StartupData snapshot;
 287   pp::PDF::GetV8ExternalSnapshotData(this, &natives.data, &natives.raw_size,
 288                                      &snapshot.data, &snapshot.raw_size);
 289   if (natives.data) {
 290     v8::V8::SetNativesDataBlob(&natives);
 291     v8::V8::SetSnapshotDataBlob(&snapshot);
 292   }
 293
 294   // Check if the PDF is being loaded in the PDF chrome extension. We only allow
 295   // the plugin to be put into "full frame" mode when it is being loaded in the
 296   // extension because this enables some features that we don't want pages
 297   // abusing outside of the extension.
 298   pp::Var document_url_var = pp::URLUtil_Dev::Get()->GetDocumentURL(this);
 299   std::string document_url = document_url_var.is_string() ?
 300       document_url_var.AsString() : std::string();
 301   std::string extension_url = std::string(kChromeExtension);
 302   bool in_extension =
 303       !document_url.compare(0, extension_url.size(), extension_url);
 304
 305   if (in_extension) {
 306     // Check if the plugin is full frame. This is passed in from JS.
 307     for (uint32_t i = 0; i < argc; ++i) {
 308       if (strcmp(argn[i], "full-frame") == 0) {
 309         full_ = true;
 310         break;
 311       }
 312     }
 313   }
 314
 315   // Only allow the plugin to handle find requests if it is full frame.
 316   if (full_)
 317     SetPluginToHandleFindRequests();
 318
 319   // Send translated strings to the extension where they will be displayed.
 320   // TODO(raymes): It would be better to get these in the extension directly
 321   // through an API but no such API currently exists.
 322   pp::VarDictionary translated_strings;
 323   translated_strings.Set(kType, kJSSetTranslatedStringsType);
 324   translated_strings.Set(kJSGetPasswordString,
 325       GetLocalizedString(PP_RESOURCESTRING_PDFGETPASSWORD));
 326   translated_strings.Set(kJSLoadingString,
 327       GetLocalizedString(PP_RESOURCESTRING_PDFLOADING));
 328   translated_strings.Set(kJSLoadFailedString,
 329       GetLocalizedString(PP_RESOURCESTRING_PDFLOAD_FAILED));
 330   PostMessage(translated_strings);
 331
 332   text_input_.reset(new pp::TextInput_Dev(this));
 333
 334   const char* stream_url = NULL;
 335   const char* original_url = NULL;
 336   const char* headers = NULL;
 337   for (uint32_t i = 0; i < argc; ++i) {
 338     if (strcmp(argn[i], "src") == 0)
 339       original_url = argv[i];
 340     else if (strcmp(argn[i], "stream-url") == 0)
 341       stream_url = argv[i];
 342     else if (strcmp(argn[i], "headers") == 0)
 343       headers = argv[i];
 344   }
 345
 346   // TODO(raymes): This is a hack to ensure that if no headers are passed in
 347   // then we get the right MIME type. When the in process plugin is removed we
 348   // can fix the document loader properly and remove this hack.
 349   if (!headers || strcmp(headers, "") == 0)
 350     headers = "content-type: application/pdf";
 351
 352   if (!original_url)
 353     return false;
 354
 355   if (!stream_url)
 356     stream_url = original_url;
 357
 358   // If we're in print preview mode we don't need to load the document yet.
 359   // A |kJSResetPrintPreviewModeType| message will be sent to the plugin letting
 360   // it know the url to load. By not loading here we avoid loading the same
 361   // document twice.
 362   if (IsPrintPreviewUrl(original_url))
 363     return true;
 364
 365   LoadUrl(stream_url);
 366   url_ = original_url;
 367   return engine_->New(original_url, headers);
 368 }
 369
 370 void OutOfProcessInstance::HandleMessage(const pp::Var& message) {
 371   pp::VarDictionary dict(message);
 372   if (!dict.Get(kType).is_string()) {
 373     NOTREACHED();
 374     return;
 375   }
 376
 377   std::string type = dict.Get(kType).AsString();
 378
 379   if (type == kJSViewportType &&
 380       dict.Get(pp::Var(kJSXOffset)).is_number() &&
 381       dict.Get(pp::Var(kJSYOffset)).is_number() &&
 382       dict.Get(pp::Var(kJSZoom)).is_number()) {
 383     received_viewport_message_ = true;
 384     stop_scrolling_ = false;
 385     double zoom = dict.Get(pp::Var(kJSZoom)).AsDouble();
 386     pp::FloatPoint scroll_offset(dict.Get(pp::Var(kJSXOffset)).AsDouble(),
 387                                  dict.Get(pp::Var(kJSYOffset)).AsDouble());
 388
 389     // Bound the input parameters.
 390     zoom = std::max(kMinZoom, zoom);
 391     SetZoom(zoom);
 392     scroll_offset = BoundScrollOffsetToDocument(scroll_offset);
 393     engine_->ScrolledToXPosition(scroll_offset.x() * device_scale_);
 394     engine_->ScrolledToYPosition(scroll_offset.y() * device_scale_);
 395   } else if (type == kJSGetPasswordCompleteType &&
 396              dict.Get(pp::Var(kJSPassword)).is_string()) {
 397     if (password_callback_) {
 398       pp::CompletionCallbackWithOutput<pp::Var> callback = *password_callback_;
 399       password_callback_.reset();
 400       *callback.output() = dict.Get(pp::Var(kJSPassword)).pp_var();
 401       callback.Run(PP_OK);
 402     } else {
 403       NOTREACHED();
 404     }
 405   } else if (type == kJSPrintType) {
 406     Print();
 407   } else if (type == kJSSaveType) {
 408     pp::PDF::SaveAs(this);
 409   } else if (type == kJSRotateClockwiseType) {
 410     RotateClockwise();
 411   } else if (type == kJSRotateCounterclockwiseType) {
 412     RotateCounterclockwise();
 413   } else if (type == kJSSelectAllType) {
 414     engine_->SelectAll();
 415   } else if (type == kJSResetPrintPreviewModeType &&
 416              dict.Get(pp::Var(kJSPrintPreviewUrl)).is_string() &&
 417              dict.Get(pp::Var(kJSPrintPreviewGrayscale)).is_bool() &&
 418              dict.Get(pp::Var(kJSPrintPreviewPageCount)).is_int()) {
 419     url_ = dict.Get(pp::Var(kJSPrintPreviewUrl)).AsString();
 420     preview_pages_info_ = std::queue<PreviewPageInfo>();
 421     preview_document_load_state_ = LOAD_STATE_COMPLETE;
 422     document_load_state_ = LOAD_STATE_LOADING;
 423     LoadUrl(url_);
 424     preview_engine_.reset();
 425     engine_.reset(PDFEngine::Create(this));
 426     engine_->SetGrayscale(dict.Get(pp::Var(kJSPrintPreviewGrayscale)).AsBool());
 427     engine_->New(url_.c_str());
 428
 429     print_preview_page_count_ =
 430         std::max(dict.Get(pp::Var(kJSPrintPreviewPageCount)).AsInt(), 0);
 431
 432     paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
 433   } else if (type == kJSLoadPreviewPageType &&
 434              dict.Get(pp::Var(kJSPreviewPageUrl)).is_string() &&
 435              dict.Get(pp::Var(kJSPreviewPageIndex)).is_int()) {
 436     ProcessPreviewPageInfo(dict.Get(pp::Var(kJSPreviewPageUrl)).AsString(),
 437                            dict.Get(pp::Var(kJSPreviewPageIndex)).AsInt());
 438   } else if (type == kJSGetAccessibilityJSONType) {
 439     pp::VarDictionary reply;
 440     reply.Set(pp::Var(kType), pp::Var(kJSGetAccessibilityJSONReplyType));
 441     if (dict.Get(pp::Var(kJSAccessibilityPageNumber)).is_int()) {
 442       int page = dict.Get(pp::Var(kJSAccessibilityPageNumber)).AsInt();
 443       reply.Set(pp::Var(kJSAccessibilityJSON),
 444                         pp::Var(engine_->GetPageAsJSON(page)));
 445     } else {
 446       base::DictionaryValue node;
 447       node.SetInteger(kAccessibleNumberOfPages, engine_->GetNumberOfPages());
 448       node.SetBoolean(kAccessibleLoaded,
 449                       document_load_state_ != LOAD_STATE_LOADING);
 450       bool has_permissions =
 451           engine_->HasPermission(PDFEngine::PERMISSION_COPY) ||
 452           engine_->HasPermission(PDFEngine::PERMISSION_COPY_ACCESSIBLE);
 453       node.SetBoolean(kAccessibleCopyable, has_permissions);
 454       std::string json;
 455       base::JSONWriter::Write(&node, &json);
 456       reply.Set(pp::Var(kJSAccessibilityJSON), pp::Var(json));
 457     }
 458     PostMessage(reply);
 459   } else if (type == kJSStopScrollingType) {
 460     stop_scrolling_ = true;
 461   } else {
 462     NOTREACHED();
 463   }
 464 }
 465
 466 bool OutOfProcessInstance::HandleInputEvent(
 467     const pp::InputEvent& event) {
 468   // To simplify things, convert the event into device coordinates if it is
 469   // a mouse event.
 470   pp::InputEvent event_device_res(event);
 471   {
 472     pp::MouseInputEvent mouse_event(event);
 473     if (!mouse_event.is_null()) {
 474       pp::Point point = mouse_event.GetPosition();
 475       pp::Point movement = mouse_event.GetMovement();
 476       ScalePoint(device_scale_, &point);
 477       ScalePoint(device_scale_, &movement);
 478       mouse_event = pp::MouseInputEvent(
 479           this,
 480           event.GetType(),
 481           event.GetTimeStamp(),
 482           event.GetModifiers(),
 483           mouse_event.GetButton(),
 484           point,
 485           mouse_event.GetClickCount(),
 486           movement);
 487       event_device_res = mouse_event;
 488     }
 489   }
 490
 491   pp::InputEvent offset_event(event_device_res);
 492   switch (offset_event.GetType()) {
 493     case PP_INPUTEVENT_TYPE_MOUSEDOWN:
 494     case PP_INPUTEVENT_TYPE_MOUSEUP:
 495     case PP_INPUTEVENT_TYPE_MOUSEMOVE:
 496     case PP_INPUTEVENT_TYPE_MOUSEENTER:
 497     case PP_INPUTEVENT_TYPE_MOUSELEAVE: {
 498       pp::MouseInputEvent mouse_event(event_device_res);
 499       pp::MouseInputEvent mouse_event_dip(event);
 500       pp::Point point = mouse_event.GetPosition();
 501       point.set_x(point.x() - available_area_.x());
 502       offset_event = pp::MouseInputEvent(
 503           this,
 504           event.GetType(),
 505           event.GetTimeStamp(),
 506           event.GetModifiers(),
 507           mouse_event.GetButton(),
 508           point,
 509           mouse_event.GetClickCount(),
 510           mouse_event.GetMovement());
 511       break;
 512     }
 513     default:
 514       break;
 515   }
 516   if (engine_->HandleEvent(offset_event))
 517     return true;
 518
 519   // TODO(raymes): Implement this scroll behavior in JS:
 520   // When click+dragging, scroll the document correctly.
 521
 522   // Return true for unhandled clicks so the plugin takes focus.
 523   return (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEDOWN);
 524 }
 525
 526 void OutOfProcessInstance::DidChangeView(const pp::View& view) {
 527   pp::Rect view_rect(view.GetRect());
 528   float old_device_scale = device_scale_;
 529   float device_scale = view.GetDeviceScale();
 530   pp::Size view_device_size(view_rect.width() * device_scale,
 531                             view_rect.height() * device_scale);
 532
 533   if (view_device_size != plugin_size_ || device_scale != device_scale_) {
 534     device_scale_ = device_scale;
 535     plugin_dip_size_ = view_rect.size();
 536     plugin_size_ = view_device_size;
 537
 538     paint_manager_.SetSize(view_device_size, device_scale_);
 539
 540     pp::Size new_image_data_size = PaintManager::GetNewContextSize(
 541         image_data_.size(),
 542         plugin_size_);
 543     if (new_image_data_size != image_data_.size()) {
 544       image_data_ = pp::ImageData(this,
 545                                   PP_IMAGEDATAFORMAT_BGRA_PREMUL,
 546                                   new_image_data_size,
 547                                   false);
 548       first_paint_ = true;
 549     }
 550
 551     if (image_data_.is_null()) {
 552       DCHECK(plugin_size_.IsEmpty());
 553       return;
 554     }
 555
 556     OnGeometryChanged(zoom_, old_device_scale);
 557   }
 558
 559   if (!stop_scrolling_) {
 560     pp::Point scroll_offset(view.GetScrollOffset());
 561     pp::FloatPoint scroll_offset_float(scroll_offset.x(),
 562                                        scroll_offset.y());
 563     scroll_offset_float = BoundScrollOffsetToDocument(scroll_offset_float);
 564     engine_->ScrolledToXPosition(scroll_offset_float.x() * device_scale_);
 565     engine_->ScrolledToYPosition(scroll_offset_float.y() * device_scale_);
 566   }
 567 }
 568
 569 void OutOfProcessInstance::GetPrintPresetOptionsFromDocument(
 570     PP_PdfPrintPresetOptions_Dev* options) {
 571   options->is_scaling_disabled = PP_FromBool(IsPrintScalingDisabled());
 572   options->copies = engine_->GetCopiesToPrint();
 573 }
 574
 575 pp::Var OutOfProcessInstance::GetLinkAtPosition(
 576     const pp::Point& point) {
 577   pp::Point offset_point(point);
 578   ScalePoint(device_scale_, &offset_point);
 579   offset_point.set_x(offset_point.x() - available_area_.x());
 580   return engine_->GetLinkAtPosition(offset_point);
 581 }
 582
 583 pp::Var OutOfProcessInstance::GetSelectedText(bool html) {
 584   if (html || !engine_->HasPermission(PDFEngine::PERMISSION_COPY))
 585     return pp::Var();
 586   return engine_->GetSelectedText();
 587 }
 588
 589 uint32_t OutOfProcessInstance::QuerySupportedPrintOutputFormats() {
 590   return engine_->QuerySupportedPrintOutputFormats();
 591 }
 592
 593 int32_t OutOfProcessInstance::PrintBegin(
 594     const PP_PrintSettings_Dev& print_settings) {
 595   // For us num_pages is always equal to the number of pages in the PDF
 596   // document irrespective of the printable area.
 597   int32_t ret = engine_->GetNumberOfPages();
 598   if (!ret)
 599     return 0;
 600
 601   uint32_t supported_formats = engine_->QuerySupportedPrintOutputFormats();
 602   if ((print_settings.format & supported_formats) == 0)
 603     return 0;
 604
 605   print_settings_.is_printing = true;
 606   print_settings_.pepper_print_settings = print_settings;
 607   engine_->PrintBegin();
 608   return ret;
 609 }
 610
 611 pp::Resource OutOfProcessInstance::PrintPages(
 612     const PP_PrintPageNumberRange_Dev* page_ranges,
 613     uint32_t page_range_count) {
 614   if (!print_settings_.is_printing)
 615     return pp::Resource();
 616
 617   print_settings_.print_pages_called_ = true;
 618   return engine_->PrintPages(page_ranges, page_range_count,
 619                              print_settings_.pepper_print_settings);
 620 }
 621
 622 void OutOfProcessInstance::PrintEnd() {
 623   if (print_settings_.print_pages_called_)
 624     UserMetricsRecordAction("PDF.PrintPage");
 625   print_settings_.Clear();
 626   engine_->PrintEnd();
 627 }
 628
 629 bool OutOfProcessInstance::IsPrintScalingDisabled() {
 630   return !engine_->GetPrintScaling();
 631 }
 632
 633 bool OutOfProcessInstance::StartFind(const std::string& text,
 634                                                  bool case_sensitive) {
 635   engine_->StartFind(text.c_str(), case_sensitive);
 636   return true;
 637 }
 638
 639 void OutOfProcessInstance::SelectFindResult(bool forward) {
 640   engine_->SelectFindResult(forward);
 641 }
 642
 643 void OutOfProcessInstance::StopFind() {
 644   engine_->StopFind();
 645   tickmarks_.clear();
 646   SetTickmarks(tickmarks_);
 647 }
 648
 649 void OutOfProcessInstance::OnPaint(
 650     const std::vector<pp::Rect>& paint_rects,
 651     std::vector<PaintManager::ReadyRect>* ready,
 652     std::vector<pp::Rect>* pending) {
 653   if (image_data_.is_null()) {
 654     DCHECK(plugin_size_.IsEmpty());
 655     return;
 656   }
 657   if (first_paint_) {
 658     first_paint_ = false;
 659     pp::Rect rect = pp::Rect(pp::Point(), image_data_.size());
 660     FillRect(rect, kBackgroundColor);
 661     ready->push_back(PaintManager::ReadyRect(rect, image_data_, true));
 662   }
 663
 664   if (!received_viewport_message_)
 665     return;
 666
 667   engine_->PrePaint();
 668
 669   for (size_t i = 0; i < paint_rects.size(); i++) {
 670     // Intersect with plugin area since there could be pending invalidates from
 671     // when the plugin area was larger.
 672     pp::Rect rect =
 673         paint_rects[i].Intersect(pp::Rect(pp::Point(), plugin_size_));
 674     if (rect.IsEmpty())
 675       continue;
 676
 677     pp::Rect pdf_rect = available_area_.Intersect(rect);
 678     if (!pdf_rect.IsEmpty()) {
 679       pdf_rect.Offset(available_area_.x() * -1, 0);
 680
 681       std::vector<pp::Rect> pdf_ready;
 682       std::vector<pp::Rect> pdf_pending;
 683       engine_->Paint(pdf_rect, &image_data_, &pdf_ready, &pdf_pending);
 684       for (size_t j = 0; j < pdf_ready.size(); ++j) {
 685         pdf_ready[j].Offset(available_area_.point());
 686         ready->push_back(
 687             PaintManager::ReadyRect(pdf_ready[j], image_data_, false));
 688       }
 689       for (size_t j = 0; j < pdf_pending.size(); ++j) {
 690         pdf_pending[j].Offset(available_area_.point());
 691         pending->push_back(pdf_pending[j]);
 692       }
 693     }
 694
 695     for (size_t j = 0; j < background_parts_.size(); ++j) {
 696       pp::Rect intersection = background_parts_[j].location.Intersect(rect);
 697       if (!intersection.IsEmpty()) {
 698         FillRect(intersection, background_parts_[j].color);
 699         ready->push_back(
 700             PaintManager::ReadyRect(intersection, image_data_, false));
 701       }
 702     }
 703   }
 704
 705   engine_->PostPaint();
 706 }
 707
 708 void OutOfProcessInstance::DidOpen(int32_t result) {
 709   if (result == PP_OK) {
 710     if (!engine_->HandleDocumentLoad(embed_loader_)) {
 711       document_load_state_ = LOAD_STATE_LOADING;
 712       DocumentLoadFailed();
 713     }
 714   } else if (result != PP_ERROR_ABORTED) {  // Can happen in tests.
 715     NOTREACHED();
 716     DocumentLoadFailed();
 717   }
 718
 719   // If it's a progressive load, cancel the stream URL request so that requests
 720   // can be made on the original URL.
 721   // TODO(raymes): Make this clearer once the in-process plugin is deleted.
 722   if (engine_->IsProgressiveLoad()) {
 723     pp::VarDictionary message;
 724     message.Set(kType, kJSCancelStreamUrlType);
 725     PostMessage(message);
 726   }
 727 }
 728
 729 void OutOfProcessInstance::DidOpenPreview(int32_t result) {
 730   if (result == PP_OK) {
 731     preview_engine_.reset(PDFEngine::Create(new PreviewModeClient(this)));
 732     preview_engine_->HandleDocumentLoad(embed_preview_loader_);
 733   } else {
 734     NOTREACHED();
 735   }
 736 }
 737
 738 void OutOfProcessInstance::OnClientTimerFired(int32_t id) {
 739   engine_->OnCallback(id);
 740 }
 741
 742 void OutOfProcessInstance::CalculateBackgroundParts() {
 743   background_parts_.clear();
 744   int left_width = available_area_.x();
 745   int right_start = available_area_.right();
 746   int right_width = abs(plugin_size_.width() - available_area_.right());
 747   int bottom = std::min(available_area_.bottom(), plugin_size_.height());
 748
 749   // Add the left, right, and bottom rectangles.  Note: we assume only
 750   // horizontal centering.
 751   BackgroundPart part = {
 752     pp::Rect(0, 0, left_width, bottom),
 753     kBackgroundColor
 754   };
 755   if (!part.location.IsEmpty())
 756     background_parts_.push_back(part);
 757   part.location = pp::Rect(right_start, 0, right_width, bottom);
 758   if (!part.location.IsEmpty())
 759     background_parts_.push_back(part);
 760   part.location = pp::Rect(
 761       0, bottom, plugin_size_.width(), plugin_size_.height() - bottom);
 762   if (!part.location.IsEmpty())
 763     background_parts_.push_back(part);
 764 }
 765
 766 int OutOfProcessInstance::GetDocumentPixelWidth() const {
 767   return static_cast<int>(ceil(document_size_.width() * zoom_ * device_scale_));
 768 }
 769
 770 int OutOfProcessInstance::GetDocumentPixelHeight() const {
 771   return static_cast<int>(
 772       ceil(document_size_.height() * zoom_ * device_scale_));
 773 }
 774
 775 void OutOfProcessInstance::FillRect(const pp::Rect& rect, uint32 color) {
 776   DCHECK(!image_data_.is_null() || rect.IsEmpty());
 777   uint32* buffer_start = static_cast<uint32*>(image_data_.data());
 778   int stride = image_data_.stride();
 779   uint32* ptr = buffer_start + rect.y() * stride / 4 + rect.x();
 780   int height = rect.height();
 781   int width = rect.width();
 782   for (int y = 0; y < height; ++y) {
 783     for (int x = 0; x < width; ++x)
 784       *(ptr + x) = color;
 785     ptr += stride /4;
 786   }
 787 }
 788
 789 void OutOfProcessInstance::DocumentSizeUpdated(const pp::Size& size) {
 790   document_size_ = size;
 791
 792   pp::VarDictionary dimensions;
 793   dimensions.Set(kType, kJSDocumentDimensionsType);
 794   dimensions.Set(kJSDocumentWidth, pp::Var(document_size_.width()));
 795   dimensions.Set(kJSDocumentHeight, pp::Var(document_size_.height()));
 796   pp::VarArray page_dimensions_array;
 797   int num_pages = engine_->GetNumberOfPages();
 798   for (int i = 0; i < num_pages; ++i) {
 799     pp::Rect page_rect = engine_->GetPageRect(i);
 800     pp::VarDictionary page_dimensions;
 801     page_dimensions.Set(kJSPageX, pp::Var(page_rect.x()));
 802     page_dimensions.Set(kJSPageY, pp::Var(page_rect.y()));
 803     page_dimensions.Set(kJSPageWidth, pp::Var(page_rect.width()));
 804     page_dimensions.Set(kJSPageHeight, pp::Var(page_rect.height()));
 805     page_dimensions_array.Set(i, page_dimensions);
 806   }
 807   dimensions.Set(kJSPageDimensions, page_dimensions_array);
 808   PostMessage(dimensions);
 809
 810   OnGeometryChanged(zoom_, device_scale_);
 811 }
 812
 813 void OutOfProcessInstance::Invalidate(const pp::Rect& rect) {
 814   pp::Rect offset_rect(rect);
 815   offset_rect.Offset(available_area_.point());
 816   paint_manager_.InvalidateRect(offset_rect);
 817 }
 818
 819 void OutOfProcessInstance::Scroll(const pp::Point& point) {
 820   if (!image_data_.is_null())
 821     paint_manager_.ScrollRect(available_area_, point);
 822 }
 823
 824 void OutOfProcessInstance::ScrollToX(int x) {
 825   pp::VarDictionary position;
 826   position.Set(kType, kJSSetScrollPositionType);
 827   position.Set(kJSPositionX, pp::Var(x / device_scale_));
 828   PostMessage(position);
 829 }
 830
 831 void OutOfProcessInstance::ScrollToY(int y) {
 832   pp::VarDictionary position;
 833   position.Set(kType, kJSSetScrollPositionType);
 834   position.Set(kJSPositionY, pp::Var(y / device_scale_));
 835   PostMessage(position);
 836 }
 837
 838 void OutOfProcessInstance::ScrollToPage(int page) {
 839   if (engine_->GetNumberOfPages() == 0)
 840     return;
 841
 842   pp::VarDictionary message;
 843   message.Set(kType, kJSGoToPageType);
 844   message.Set(kJSPageNumber, pp::Var(page));
 845   PostMessage(message);
 846 }
 847
 848 void OutOfProcessInstance::NavigateTo(const std::string& url,
 849                                       bool open_in_new_tab) {
 850   std::string url_copy(url);
 851
 852   // Empty |url_copy| is ok, and will effectively be a reload.
 853   // Skip the code below so an empty URL does not turn into "http://", which
 854   // will cause GURL to fail a DCHECK.
 855   if (!url_copy.empty()) {
 856     // If |url_copy| starts with '#', then it's for the same URL with a
 857     // different URL fragment.
 858     if (url_copy[0] == '#') {
 859       url_copy = url_ + url_copy;
 860     }
 861     // If there's no scheme, add http.
 862     if (url_copy.find("://") == std::string::npos &&
 863         url_copy.find("mailto:") == std::string::npos) {
 864       url_copy = std::string("http://") + url_copy;
 865     }
 866     // Make sure |url_copy| starts with a valid scheme.
 867     if (url_copy.find("http://") != 0 &&
 868         url_copy.find("https://") != 0 &&
 869         url_copy.find("ftp://") != 0 &&
 870         url_copy.find("file://") != 0 &&
 871         url_copy.find("mailto:") != 0) {
 872       return;
 873     }
 874     // Make sure |url_copy| is not only a scheme.
 875     if (url_copy == "http://" ||
 876         url_copy == "https://" ||
 877         url_copy == "ftp://" ||
 878         url_copy == "file://" ||
 879         url_copy == "mailto:") {
 880       return;
 881     }
 882   }
 883   pp::VarDictionary message;
 884   message.Set(kType, kJSNavigateType);
 885   message.Set(kJSNavigateUrl, url_copy);
 886   message.Set(kJSNavigateNewTab, open_in_new_tab);
 887   PostMessage(message);
 888 }
 889
 890 void OutOfProcessInstance::UpdateCursor(PP_CursorType_Dev cursor) {
 891   if (cursor == cursor_)
 892     return;
 893   cursor_ = cursor;
 894
 895   const PPB_CursorControl_Dev* cursor_interface =
 896       reinterpret_cast<const PPB_CursorControl_Dev*>(
 897       pp::Module::Get()->GetBrowserInterface(PPB_CURSOR_CONTROL_DEV_INTERFACE));
 898   if (!cursor_interface) {
 899     NOTREACHED();
 900     return;
 901   }
 902
 903   cursor_interface->SetCursor(
 904       pp_instance(), cursor_, pp::ImageData().pp_resource(), NULL);
 905 }
 906
 907 void OutOfProcessInstance::UpdateTickMarks(
 908     const std::vector<pp::Rect>& tickmarks) {
 909   float inverse_scale = 1.0f / device_scale_;
 910   std::vector<pp::Rect> scaled_tickmarks = tickmarks;
 911   for (size_t i = 0; i < scaled_tickmarks.size(); i++)
 912     ScaleRect(inverse_scale, &scaled_tickmarks[i]);
 913   tickmarks_ = scaled_tickmarks;
 914 }
 915
 916 void OutOfProcessInstance::NotifyNumberOfFindResultsChanged(int total,
 917                                                             bool final_result) {
 918   // We don't want to spam the renderer with too many updates to the number of
 919   // find results. Don't send an update if we sent one too recently. If it's the
 920   // final update, we always send it though.
 921   if (final_result) {
 922     NumberOfFindResultsChanged(total, final_result);
 923     SetTickmarks(tickmarks_);
 924     return;
 925   }
 926
 927   if (recently_sent_find_update_)
 928     return;
 929
 930   NumberOfFindResultsChanged(total, final_result);
 931   SetTickmarks(tickmarks_);
 932   recently_sent_find_update_ = true;
 933   pp::CompletionCallback callback =
 934       timer_factory_.NewCallback(
 935           &OutOfProcessInstance::ResetRecentlySentFindUpdate);
 936   pp::Module::Get()->core()->CallOnMainThread(kFindResultCooldownMs,
 937                                               callback, 0);
 938 }
 939
 940 void OutOfProcessInstance::NotifySelectedFindResultChanged(
 941     int current_find_index) {
 942   DCHECK_GE(current_find_index, 0);
 943   SelectedFindResultChanged(current_find_index);
 944 }
 945
 946 void OutOfProcessInstance::GetDocumentPassword(
 947     pp::CompletionCallbackWithOutput<pp::Var> callback) {
 948   if (password_callback_) {
 949     NOTREACHED();
 950     return;
 951   }
 952
 953   password_callback_.reset(
 954       new pp::CompletionCallbackWithOutput<pp::Var>(callback));
 955   pp::VarDictionary message;
 956   message.Set(pp::Var(kType), pp::Var(kJSGetPasswordType));
 957   PostMessage(message);
 958 }
 959
 960 void OutOfProcessInstance::Alert(const std::string& message) {
 961   ModalDialog(this, "alert", message, std::string());
 962 }
 963
 964 bool OutOfProcessInstance::Confirm(const std::string& message) {
 965   pp::Var result = ModalDialog(this, "confirm", message, std::string());
 966   return result.is_bool() ? result.AsBool() : false;
 967 }
 968
 969 std::string OutOfProcessInstance::Prompt(const std::string& question,
 970                                          const std::string& default_answer) {
 971   pp::Var result = ModalDialog(this, "prompt", question, default_answer);
 972   return result.is_string() ? result.AsString() : std::string();
 973 }
 974
 975 std::string OutOfProcessInstance::GetURL() {
 976   return url_;
 977 }
 978
 979 void OutOfProcessInstance::Email(const std::string& to,
 980                                  const std::string& cc,
 981                                  const std::string& bcc,
 982                                  const std::string& subject,
 983                                  const std::string& body) {
 984   pp::VarDictionary message;
 985   message.Set(pp::Var(kType), pp::Var(kJSEmailType));
 986   message.Set(pp::Var(kJSEmailTo),
 987               pp::Var(net::EscapeUrlEncodedData(to, false)));
 988   message.Set(pp::Var(kJSEmailCc),
 989               pp::Var(net::EscapeUrlEncodedData(cc, false)));
 990   message.Set(pp::Var(kJSEmailBcc),
 991               pp::Var(net::EscapeUrlEncodedData(bcc, false)));
 992   message.Set(pp::Var(kJSEmailSubject),
 993               pp::Var(net::EscapeUrlEncodedData(subject, false)));
 994   message.Set(pp::Var(kJSEmailBody),
 995               pp::Var(net::EscapeUrlEncodedData(body, false)));
 996   PostMessage(message);
 997 }
 998
 999 void OutOfProcessInstance::Print() {
1000   if (!printing_enabled_ ||
1001       (!engine_->HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY) &&
1002        !engine_->HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY))) {
1003     return;
1004   }
1005
1006   pp::CompletionCallback callback =
1007       print_callback_factory_.NewCallback(&OutOfProcessInstance::OnPrint);
1008   pp::Module::Get()->core()->CallOnMainThread(0, callback);
1009 }
1010
1011 void OutOfProcessInstance::OnPrint(int32_t) {
1012   pp::PDF::Print(this);
1013 }
1014
1015 void OutOfProcessInstance::SubmitForm(const std::string& url,
1016                                       const void* data,
1017                                       int length) {
1018   pp::URLRequestInfo request(this);
1019   request.SetURL(url);
1020   request.SetMethod("POST");
1021   request.AppendDataToBody(reinterpret_cast<const char*>(data), length);
1022
1023   pp::CompletionCallback callback =
1024       form_factory_.NewCallback(&OutOfProcessInstance::FormDidOpen);
1025   form_loader_ = CreateURLLoaderInternal();
1026   int rv = form_loader_.Open(request, callback);
1027   if (rv != PP_OK_COMPLETIONPENDING)
1028     callback.Run(rv);
1029 }
1030
1031 void OutOfProcessInstance::FormDidOpen(int32_t result) {
1032   // TODO: inform the user of success/failure.
1033   if (result != PP_OK) {
1034     NOTREACHED();
1035   }
1036 }
1037
1038 std::string OutOfProcessInstance::ShowFileSelectionDialog() {
1039   // Seems like very low priority to implement, since the pdf has no way to get
1040   // the file data anyways.  Javascript doesn't let you do this synchronously.
1041   NOTREACHED();
1042   return std::string();
1043 }
1044
1045 pp::URLLoader OutOfProcessInstance::CreateURLLoader() {
1046   if (full_) {
1047     if (!did_call_start_loading_) {
1048       did_call_start_loading_ = true;
1049       pp::PDF::DidStartLoading(this);
1050     }
1051
1052     // Disable save and print until the document is fully loaded, since they
1053     // would generate an incomplete document.  Need to do this each time we
1054     // call DidStartLoading since that resets the content restrictions.
1055     pp::PDF::SetContentRestriction(this, CONTENT_RESTRICTION_SAVE |
1056                                    CONTENT_RESTRICTION_PRINT);
1057   }
1058
1059   return CreateURLLoaderInternal();
1060 }
1061
1062 void OutOfProcessInstance::ScheduleCallback(int id, int delay_in_ms) {
1063   pp::CompletionCallback callback =
1064       timer_factory_.NewCallback(&OutOfProcessInstance::OnClientTimerFired);
1065   pp::Module::Get()->core()->CallOnMainThread(delay_in_ms, callback, id);
1066 }
1067
1068 void OutOfProcessInstance::SearchString(const base::char16* string,
1069                             const base::char16* term,
1070                             bool case_sensitive,
1071                             std::vector<SearchStringResult>* results) {
1072   PP_PrivateFindResult* pp_results;
1073   int count = 0;
1074   pp::PDF::SearchString(
1075       this,
1076       reinterpret_cast<const unsigned short*>(string),
1077       reinterpret_cast<const unsigned short*>(term),
1078       case_sensitive,
1079       &pp_results,
1080       &count);
1081
1082   results->resize(count);
1083   for (int i = 0; i < count; ++i) {
1084     (*results)[i].start_index = pp_results[i].start_index;
1085     (*results)[i].length = pp_results[i].length;
1086   }
1087
1088   pp::Memory_Dev memory;
1089   memory.MemFree(pp_results);
1090 }
1091
1092 void OutOfProcessInstance::DocumentPaintOccurred() {
1093 }
1094
1095 void OutOfProcessInstance::DocumentLoadComplete(int page_count) {
1096   // Clear focus state for OSK.
1097   FormTextFieldFocusChange(false);
1098
1099   DCHECK(document_load_state_ == LOAD_STATE_LOADING);
1100   document_load_state_ = LOAD_STATE_COMPLETE;
1101   UserMetricsRecordAction("PDF.LoadSuccess");
1102
1103   // Note: If we are in print preview mode the scroll location is retained
1104   // across document loads so we don't want to scroll again and override it.
1105   if (IsPrintPreview()) {
1106     AppendBlankPrintPreviewPages();
1107     OnGeometryChanged(0, 0);
1108   }
1109
1110   pp::VarDictionary message;
1111   message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1112   message.Set(pp::Var(kJSProgressPercentage), pp::Var(100)) ;
1113   PostMessage(message);
1114
1115   if (!full_)
1116     return;
1117
1118   if (did_call_start_loading_) {
1119     pp::PDF::DidStopLoading(this);
1120     did_call_start_loading_ = false;
1121   }
1122
1123   int content_restrictions =
1124       CONTENT_RESTRICTION_CUT | CONTENT_RESTRICTION_PASTE;
1125   if (!engine_->HasPermission(PDFEngine::PERMISSION_COPY))
1126     content_restrictions |= CONTENT_RESTRICTION_COPY;
1127
1128   if (!engine_->HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY) &&
1129       !engine_->HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY)) {
1130     printing_enabled_ = false;
1131   }
1132
1133   pp::PDF::SetContentRestriction(this, content_restrictions);
1134
1135   uma_.HistogramCustomCounts("PDF.PageCount", page_count,
1136                              1, 1000000, 50);
1137 }
1138
1139 void OutOfProcessInstance::RotateClockwise() {
1140   engine_->RotateClockwise();
1141 }
1142
1143 void OutOfProcessInstance::RotateCounterclockwise() {
1144   engine_->RotateCounterclockwise();
1145 }
1146
1147 void OutOfProcessInstance::PreviewDocumentLoadComplete() {
1148   if (preview_document_load_state_ != LOAD_STATE_LOADING ||
1149       preview_pages_info_.empty()) {
1150     return;
1151   }
1152
1153   preview_document_load_state_ = LOAD_STATE_COMPLETE;
1154
1155   int dest_page_index = preview_pages_info_.front().second;
1156   int src_page_index =
1157       ExtractPrintPreviewPageIndex(preview_pages_info_.front().first);
1158   if (src_page_index > 0 &&  dest_page_index > -1 && preview_engine_.get())
1159     engine_->AppendPage(preview_engine_.get(), dest_page_index);
1160
1161   preview_pages_info_.pop();
1162   // |print_preview_page_count_| is not updated yet. Do not load any
1163   // other preview pages till we get this information.
1164   if (print_preview_page_count_ == 0)
1165     return;
1166
1167   if (preview_pages_info_.size())
1168     LoadAvailablePreviewPage();
1169 }
1170
1171 void OutOfProcessInstance::DocumentLoadFailed() {
1172   DCHECK(document_load_state_ == LOAD_STATE_LOADING);
1173   UserMetricsRecordAction("PDF.LoadFailure");
1174
1175   if (did_call_start_loading_) {
1176     pp::PDF::DidStopLoading(this);
1177     did_call_start_loading_ = false;
1178   }
1179
1180   document_load_state_ = LOAD_STATE_FAILED;
1181   paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
1182
1183   // Send a progress value of -1 to indicate a failure.
1184   pp::VarDictionary message;
1185   message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1186   message.Set(pp::Var(kJSProgressPercentage), pp::Var(-1)) ;
1187   PostMessage(message);
1188 }
1189
1190 void OutOfProcessInstance::PreviewDocumentLoadFailed() {
1191   UserMetricsRecordAction("PDF.PreviewDocumentLoadFailure");
1192   if (preview_document_load_state_ != LOAD_STATE_LOADING ||
1193       preview_pages_info_.empty()) {
1194     return;
1195   }
1196
1197   preview_document_load_state_ = LOAD_STATE_FAILED;
1198   preview_pages_info_.pop();
1199
1200   if (preview_pages_info_.size())
1201     LoadAvailablePreviewPage();
1202 }
1203
1204 pp::Instance* OutOfProcessInstance::GetPluginInstance() {
1205   return this;
1206 }
1207
1208 void OutOfProcessInstance::DocumentHasUnsupportedFeature(
1209     const std::string& feature) {
1210   std::string metric("PDF_Unsupported_");
1211   metric += feature;
1212   if (!unsupported_features_reported_.count(metric)) {
1213     unsupported_features_reported_.insert(metric);
1214     UserMetricsRecordAction(metric);
1215   }
1216
1217   // Since we use an info bar, only do this for full frame plugins..
1218   if (!full_)
1219     return;
1220
1221   if (told_browser_about_unsupported_feature_)
1222     return;
1223   told_browser_about_unsupported_feature_ = true;
1224
1225   pp::PDF::HasUnsupportedFeature(this);
1226 }
1227
1228 void OutOfProcessInstance::DocumentLoadProgress(uint32 available,
1229                                                 uint32 doc_size) {
1230   double progress = 0.0;
1231   if (doc_size == 0) {
1232     // Document size is unknown. Use heuristics.
1233     // We'll make progress logarithmic from 0 to 100M.
1234     static const double kFactor = log(100000000.0) / 100.0;
1235     if (available > 0) {
1236       progress = log(static_cast<double>(available)) / kFactor;
1237       if (progress > 100.0)
1238         progress = 100.0;
1239     }
1240   } else {
1241     progress = 100.0 * static_cast<double>(available) / doc_size;
1242   }
1243
1244   // We send 100% load progress in DocumentLoadComplete.
1245   if (progress >= 100)
1246     return;
1247
1248   // Avoid sending too many progress messages over PostMessage.
1249   if (progress > last_progress_sent_ + 1) {
1250     last_progress_sent_ = progress;
1251     pp::VarDictionary message;
1252     message.Set(pp::Var(kType), pp::Var(kJSLoadProgressType));
1253     message.Set(pp::Var(kJSProgressPercentage), pp::Var(progress)) ;
1254     PostMessage(message);
1255   }
1256 }
1257
1258 void OutOfProcessInstance::FormTextFieldFocusChange(bool in_focus) {
1259   if (!text_input_.get())
1260     return;
1261   if (in_focus)
1262     text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_TEXT);
1263   else
1264     text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_NONE);
1265 }
1266
1267 void OutOfProcessInstance::ResetRecentlySentFindUpdate(int32_t /* unused */) {
1268   recently_sent_find_update_ = false;
1269 }
1270
1271 void OutOfProcessInstance::OnGeometryChanged(double old_zoom,
1272                                              float old_device_scale) {
1273   if (zoom_ != old_zoom || device_scale_ != old_device_scale)
1274     engine_->ZoomUpdated(zoom_ * device_scale_);
1275
1276   available_area_ = pp::Rect(plugin_size_);
1277   int doc_width = GetDocumentPixelWidth();
1278   if (doc_width < available_area_.width()) {
1279     available_area_.Offset((available_area_.width() - doc_width) / 2, 0);
1280     available_area_.set_width(doc_width);
1281   }
1282   int doc_height = GetDocumentPixelHeight();
1283   if (doc_height < available_area_.height()) {
1284     available_area_.set_height(doc_height);
1285   }
1286
1287   CalculateBackgroundParts();
1288   engine_->PageOffsetUpdated(available_area_.point());
1289   engine_->PluginSizeUpdated(available_area_.size());
1290
1291   if (!document_size_.GetArea())
1292     return;
1293   paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
1294 }
1295
1296 void OutOfProcessInstance::LoadUrl(const std::string& url) {
1297   LoadUrlInternal(url, &embed_loader_, &OutOfProcessInstance::DidOpen);
1298 }
1299
1300 void OutOfProcessInstance::LoadPreviewUrl(const std::string& url) {
1301   LoadUrlInternal(url, &embed_preview_loader_,
1302                   &OutOfProcessInstance::DidOpenPreview);
1303 }
1304
1305 void OutOfProcessInstance::LoadUrlInternal(
1306     const std::string& url,
1307     pp::URLLoader* loader,
1308     void (OutOfProcessInstance::* method)(int32_t)) {
1309   pp::URLRequestInfo request(this);
1310   request.SetURL(url);
1311   request.SetMethod("GET");
1312
1313   *loader = CreateURLLoaderInternal();
1314   pp::CompletionCallback callback = loader_factory_.NewCallback(method);
1315   int rv = loader->Open(request, callback);
1316   if (rv != PP_OK_COMPLETIONPENDING)
1317     callback.Run(rv);
1318 }
1319
1320 pp::URLLoader OutOfProcessInstance::CreateURLLoaderInternal() {
1321   pp::URLLoader loader(this);
1322
1323   const PPB_URLLoaderTrusted* trusted_interface =
1324       reinterpret_cast<const PPB_URLLoaderTrusted*>(
1325           pp::Module::Get()->GetBrowserInterface(
1326               PPB_URLLOADERTRUSTED_INTERFACE));
1327   if (trusted_interface)
1328     trusted_interface->GrantUniversalAccess(loader.pp_resource());
1329   return loader;
1330 }
1331
1332 void OutOfProcessInstance::SetZoom(double scale) {
1333   double old_zoom = zoom_;
1334   zoom_ = scale;
1335   OnGeometryChanged(old_zoom, device_scale_);
1336 }
1337
1338 std::string OutOfProcessInstance::GetLocalizedString(PP_ResourceString id) {
1339   pp::Var rv(pp::PDF::GetLocalizedString(this, id));
1340   if (!rv.is_string())
1341     return std::string();
1342
1343   return rv.AsString();
1344 }
1345
1346 void OutOfProcessInstance::AppendBlankPrintPreviewPages() {
1347   if (print_preview_page_count_ == 0)
1348     return;
1349   engine_->AppendBlankPages(print_preview_page_count_);
1350   if (preview_pages_info_.size() > 0)
1351     LoadAvailablePreviewPage();
1352 }
1353
1354 bool OutOfProcessInstance::IsPrintPreview() {
1355   return IsPrintPreviewUrl(url_);
1356 }
1357
1358 void OutOfProcessInstance::ProcessPreviewPageInfo(const std::string& url,
1359                                                   int dst_page_index) {
1360   if (!IsPrintPreview())
1361     return;
1362
1363   int src_page_index = ExtractPrintPreviewPageIndex(url);
1364   if (src_page_index < 1)
1365     return;
1366
1367   preview_pages_info_.push(std::make_pair(url, dst_page_index));
1368   LoadAvailablePreviewPage();
1369 }
1370
1371 void OutOfProcessInstance::LoadAvailablePreviewPage() {
1372   if (preview_pages_info_.size() <= 0 ||
1373       document_load_state_ != LOAD_STATE_COMPLETE) {
1374     return;
1375   }
1376
1377   std::string url = preview_pages_info_.front().first;
1378   int dst_page_index = preview_pages_info_.front().second;
1379   int src_page_index = ExtractPrintPreviewPageIndex(url);
1380   if (src_page_index < 1 ||
1381       dst_page_index >= print_preview_page_count_ ||
1382       preview_document_load_state_ == LOAD_STATE_LOADING) {
1383     return;
1384   }
1385
1386   preview_document_load_state_ = LOAD_STATE_LOADING;
1387   LoadPreviewUrl(url);
1388 }
1389
1390 void OutOfProcessInstance::UserMetricsRecordAction(
1391     const std::string& action) {
1392   // TODO(raymes): Move this function to PPB_UMA_Private.
1393   pp::PDF::UserMetricsRecordAction(this, pp::Var(action));
1394 }
1395
1396 pp::FloatPoint OutOfProcessInstance::BoundScrollOffsetToDocument(
1397     const pp::FloatPoint& scroll_offset) {
1398   float max_x = document_size_.width() * zoom_ - plugin_dip_size_.width();
1399   float x = std::max(std::min(scroll_offset.x(), max_x), 0.0f);
1400   float max_y = document_size_.height() * zoom_ - plugin_dip_size_.height();
1401   float y = std::max(std::min(scroll_offset.y(), max_y), 0.0f);
1402   return pp::FloatPoint(x, y);
1403 }
1404
1405 }  // namespace chrome_pdf