summaryrefslogtreecommitdiff
path: root/xfa_test/pdf/instance.cc
diff options
context:
space:
mode:
authorBo Xu <bo_xu@foxitsoftware.com>2014-10-28 23:03:33 -0700
committerBo Xu <bo_xu@foxitsoftware.com>2014-11-03 11:10:11 -0800
commitfdc00a7042d912aafaabddae4d9c84199921ef23 (patch)
tree32ab8ac91cc68d2cd15b9168782a71b3f3f5e7b9 /xfa_test/pdf/instance.cc
parente9b38fa38de2c95d8260be31c57d9272c4d127ed (diff)
downloadpdfium-fdc00a7042d912aafaabddae4d9c84199921ef23.tar.xz
Merge XFA to PDFium master at 4dc95e7 on 10/28/2014
Diffstat (limited to 'xfa_test/pdf/instance.cc')
-rw-r--r--xfa_test/pdf/instance.cc2778
1 files changed, 2778 insertions, 0 deletions
diff --git a/xfa_test/pdf/instance.cc b/xfa_test/pdf/instance.cc
new file mode 100644
index 0000000000..4bd2f787df
--- /dev/null
+++ b/xfa_test/pdf/instance.cc
@@ -0,0 +1,2778 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "pdf/instance.h"
+
+#include <algorithm> // for min()
+#define _USE_MATH_DEFINES // for M_PI
+#include <cmath> // for log() and pow()
+#include <math.h>
+#include <list>
+
+#include "base/json/json_reader.h"
+#include "base/json/json_writer.h"
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/string_split.h"
+#include "base/strings/string_util.h"
+#include "base/values.h"
+#include "chrome/browser/chrome_page_zoom_constants.h"
+#include "chrome/common/content_restriction.h"
+#include "content/public/common/page_zoom.h"
+#include "net/base/escape.h"
+#include "pdf/draw_utils.h"
+#include "pdf/number_image_generator.h"
+#include "pdf/pdf.h"
+#include "pdf/resource_consts.h"
+#include "ppapi/c/dev/ppb_cursor_control_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/pp_rect.h"
+#include "ppapi/c/private/ppp_pdf.h"
+#include "ppapi/c/trusted/ppb_url_loader_trusted.h"
+#include "ppapi/cpp/core.h"
+#include "ppapi/cpp/dev/font_dev.h"
+#include "ppapi/cpp/dev/memory_dev.h"
+#include "ppapi/cpp/dev/text_input_dev.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/point.h"
+#include "ppapi/cpp/private/pdf.h"
+#include "ppapi/cpp/rect.h"
+#include "ppapi/cpp/resource.h"
+#include "ppapi/cpp/url_request_info.h"
+#include "ui/events/keycodes/keyboard_codes.h"
+
+#if defined(OS_MACOSX)
+#include "base/mac/mac_util.h"
+#endif
+
+namespace chrome_pdf {
+
+struct ToolbarButtonInfo {
+ uint32 id;
+ Button::ButtonStyle style;
+ PP_ResourceImage normal;
+ PP_ResourceImage highlighted;
+ PP_ResourceImage pressed;
+};
+
+namespace {
+
+// Uncomment following #define to enable thumbnails.
+// #define ENABLE_THUMBNAILS
+
+const uint32 kToolbarSplashTimeoutMs = 6000;
+const uint32 kMessageTextColor = 0xFF575757;
+const uint32 kMessageTextSize = 22;
+const uint32 kProgressFadeTimeoutMs = 250;
+const uint32 kProgressDelayTimeoutMs = 1000;
+const uint32 kAutoScrollTimeoutMs = 50;
+const double kAutoScrollFactor = 0.2;
+
+// Javascript methods.
+const char kJSAccessibility[] = "accessibility";
+const char kJSDocumentLoadComplete[] = "documentLoadComplete";
+const char kJSGetHeight[] = "getHeight";
+const char kJSGetHorizontalScrollbarThickness[] =
+ "getHorizontalScrollbarThickness";
+const char kJSGetPageLocationNormalized[] = "getPageLocationNormalized";
+const char kJSGetSelectedText[] = "getSelectedText";
+const char kJSGetVerticalScrollbarThickness[] = "getVerticalScrollbarThickness";
+const char kJSGetWidth[] = "getWidth";
+const char kJSGetZoomLevel[] = "getZoomLevel";
+const char kJSGoToPage[] = "goToPage";
+const char kJSGrayscale[] = "grayscale";
+const char kJSLoadPreviewPage[] = "loadPreviewPage";
+const char kJSOnLoad[] = "onload";
+const char kJSOnPluginSizeChanged[] = "onPluginSizeChanged";
+const char kJSOnScroll[] = "onScroll";
+const char kJSPageXOffset[] = "pageXOffset";
+const char kJSPageYOffset[] = "pageYOffset";
+const char kJSPrintPreviewPageCount[] = "printPreviewPageCount";
+const char kJSReload[] = "reload";
+const char kJSRemovePrintButton[] = "removePrintButton";
+const char kJSResetPrintPreviewUrl[] = "resetPrintPreviewUrl";
+const char kJSSendKeyEvent[] = "sendKeyEvent";
+const char kJSSetPageNumbers[] = "setPageNumbers";
+const char kJSSetPageXOffset[] = "setPageXOffset";
+const char kJSSetPageYOffset[] = "setPageYOffset";
+const char kJSSetZoomLevel[] = "setZoomLevel";
+const char kJSZoomFitToHeight[] = "fitToHeight";
+const char kJSZoomFitToWidth[] = "fitToWidth";
+const char kJSZoomIn[] = "zoomIn";
+const char kJSZoomOut[] = "zoomOut";
+
+// URL reference parameters.
+// For more possible parameters, see RFC 3778 and the "PDF Open Parameters"
+// document from Adobe.
+const char kDelimiters[] = "#&";
+const char kNamedDest[] = "nameddest";
+const char kPage[] = "page";
+
+const char kChromePrint[] = "chrome://print/";
+
+// Dictionary Value key names for the document accessibility info
+const char kAccessibleNumberOfPages[] = "numberOfPages";
+const char kAccessibleLoaded[] = "loaded";
+const char kAccessibleCopyable[] = "copyable";
+
+const ToolbarButtonInfo kPDFToolbarButtons[] = {
+ { kFitToPageButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED },
+ { kFitToWidthButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED },
+ { kZoomOutButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED },
+ { kZoomInButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED },
+ { kSaveButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED },
+ { kPrintButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_PRESSED },
+};
+
+const ToolbarButtonInfo kPDFNoPrintToolbarButtons[] = {
+ { kFitToPageButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED },
+ { kFitToWidthButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED },
+ { kZoomOutButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED },
+ { kZoomInButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_PRESSED },
+ { kSaveButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_SAVE_PRESSED },
+ { kPrintButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED,
+ PP_RESOURCEIMAGE_PDF_BUTTON_PRINT_DISABLED }
+};
+
+const ToolbarButtonInfo kPrintPreviewToolbarButtons[] = {
+ { kFitToPageButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTP_PRESSED },
+ { kFitToWidthButtonId, Button::BUTTON_STATE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_FTW_PRESSED },
+ { kZoomOutButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMOUT_PRESSED },
+ { kZoomInButtonId, Button::BUTTON_CLICKABLE,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_HOVER,
+ PP_RESOURCEIMAGE_PDF_BUTTON_ZOOMIN_END_PRESSED },
+};
+
+static const char kPPPPdfInterface[] = PPP_PDF_INTERFACE_1;
+
+PP_Var GetLinkAtPosition(PP_Instance instance, PP_Point point) {
+ pp::Var var;
+ void* object =
+ pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
+ if (object)
+ var = static_cast<Instance*>(object)->GetLinkAtPosition(pp::Point(point));
+ return var.Detach();
+}
+
+void Transform(PP_Instance instance, PP_PrivatePageTransformType type) {
+ void* object =
+ pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
+ if (object) {
+ Instance* obj_instance = static_cast<Instance*>(object);
+ switch (type) {
+ case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW:
+ obj_instance->RotateClockwise();
+ break;
+ case PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CCW:
+ obj_instance->RotateCounterclockwise();
+ break;
+ }
+ }
+}
+
+const PPP_Pdf ppp_private = {
+ &GetLinkAtPosition,
+ &Transform
+};
+
+int ExtractPrintPreviewPageIndex(const std::string& src_url) {
+ // Sample |src_url| format: chrome://print/id/page_index/print.pdf
+ std::vector<std::string> url_substr;
+ base::SplitString(src_url.substr(strlen(kChromePrint)), '/', &url_substr);
+ if (url_substr.size() != 3)
+ return -1;
+
+ if (url_substr[2] != "print.pdf")
+ return -1;
+
+ int page_index = 0;
+ if (!base::StringToInt(url_substr[1], &page_index))
+ return -1;
+ return page_index;
+}
+
+bool IsPrintPreviewUrl(const std::string& url) {
+ return url.substr(0, strlen(kChromePrint)) == kChromePrint;
+}
+
+void ScalePoint(float scale, pp::Point* point) {
+ point->set_x(static_cast<int>(point->x() * scale));
+ point->set_y(static_cast<int>(point->y() * scale));
+}
+
+void ScaleRect(float scale, pp::Rect* rect) {
+ int left = static_cast<int>(floorf(rect->x() * scale));
+ int top = static_cast<int>(floorf(rect->y() * scale));
+ int right = static_cast<int>(ceilf((rect->x() + rect->width()) * scale));
+ int bottom = static_cast<int>(ceilf((rect->y() + rect->height()) * scale));
+ rect->SetRect(left, top, right - left, bottom - top);
+}
+
+template<class T>
+T ClipToRange(T value, T lower_boundary, T upper_boundary) {
+ DCHECK(lower_boundary <= upper_boundary);
+ return std::max<T>(lower_boundary, std::min<T>(value, upper_boundary));
+}
+
+} // namespace
+
+Instance::Instance(PP_Instance instance)
+ : pp::InstancePrivate(instance),
+ pp::Find_Private(this),
+ pp::Printing_Dev(this),
+ pp::Selection_Dev(this),
+ pp::WidgetClient_Dev(this),
+ pp::Zoom_Dev(this),
+ cursor_(PP_CURSORTYPE_POINTER),
+ timer_pending_(false),
+ current_timer_id_(0),
+ zoom_(1.0),
+ device_scale_(1.0),
+ printing_enabled_(true),
+ hidpi_enabled_(false),
+ full_(IsFullFrame()),
+ zoom_mode_(full_ ? ZOOM_AUTO : ZOOM_SCALE),
+ did_call_start_loading_(false),
+ is_autoscroll_(false),
+ scrollbar_thickness_(-1),
+ scrollbar_reserved_thickness_(-1),
+ current_tb_info_(NULL),
+ current_tb_info_size_(0),
+ paint_manager_(this, this, true),
+ delayed_progress_timer_id_(0),
+ first_paint_(true),
+ painted_first_page_(false),
+ show_page_indicator_(false),
+ document_load_state_(LOAD_STATE_LOADING),
+ preview_document_load_state_(LOAD_STATE_COMPLETE),
+ told_browser_about_unsupported_feature_(false),
+ print_preview_page_count_(0) {
+ loader_factory_.Initialize(this);
+ timer_factory_.Initialize(this);
+ form_factory_.Initialize(this);
+ callback_factory_.Initialize(this);
+ engine_.reset(PDFEngine::Create(this));
+ pp::Module::Get()->AddPluginInterface(kPPPPdfInterface, &ppp_private);
+ AddPerInstanceObject(kPPPPdfInterface, this);
+
+ RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_MOUSE);
+ RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_WHEEL);
+ RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_KEYBOARD);
+ RequestFilteringInputEvents(PP_INPUTEVENT_CLASS_TOUCH);
+}
+
+Instance::~Instance() {
+ if (timer_pending_) {
+ timer_factory_.CancelAll();
+ timer_pending_ = false;
+ }
+ // The engine may try to access this instance during its destruction.
+ // Make sure this happens early while the instance is still intact.
+ engine_.reset();
+ RemovePerInstanceObject(kPPPPdfInterface, this);
+}
+
+bool Instance::Init(uint32_t argc, const char* argn[], const char* argv[]) {
+ // For now, we hide HiDPI support behind a flag.
+ if (pp::PDF::IsFeatureEnabled(this, PP_PDFFEATURE_HIDPI))
+ hidpi_enabled_ = true;
+
+ printing_enabled_ = pp::PDF::IsFeatureEnabled(this, PP_PDFFEATURE_PRINTING);
+ if (printing_enabled_) {
+ CreateToolbar(kPDFToolbarButtons, arraysize(kPDFToolbarButtons));
+ } else {
+ CreateToolbar(kPDFNoPrintToolbarButtons,
+ arraysize(kPDFNoPrintToolbarButtons));
+ }
+
+ CreateProgressBar();
+
+ // Load autoscroll anchor image.
+ autoscroll_anchor_ =
+ CreateResourceImage(PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON);
+
+#ifdef ENABLE_THUMBNAILS
+ CreateThumbnails();
+#endif
+ const char* url = NULL;
+ for (uint32_t i = 0; i < argc; ++i) {
+ if (strcmp(argn[i], "src") == 0) {
+ url = argv[i];
+ break;
+ }
+ }
+
+ if (!url)
+ return false;
+
+ CreatePageIndicator(IsPrintPreviewUrl(url));
+
+ if (!full_) {
+ // For PDFs embedded in a frame, we don't get the data automatically like we
+ // do for full-frame loads. Start loading the data manually.
+ LoadUrl(url);
+ } else {
+ DCHECK(!did_call_start_loading_);
+ pp::PDF::DidStartLoading(this);
+ did_call_start_loading_ = true;
+ }
+
+ ZoomLimitsChanged(kMinZoom, kMaxZoom);
+
+ text_input_.reset(new pp::TextInput_Dev(this));
+
+ url_ = url;
+ return engine_->New(url);
+}
+
+bool Instance::HandleDocumentLoad(const pp::URLLoader& loader) {
+ delayed_progress_timer_id_ = ScheduleTimer(kProgressBarId,
+ kProgressDelayTimeoutMs);
+ return engine_->HandleDocumentLoad(loader);
+}
+
+bool Instance::HandleInputEvent(const pp::InputEvent& event) {
+ // To simplify things, convert the event into device coordinates if it is
+ // a mouse event.
+ pp::InputEvent event_device_res(event);
+ {
+ pp::MouseInputEvent mouse_event(event);
+ if (!mouse_event.is_null()) {
+ pp::Point point = mouse_event.GetPosition();
+ pp::Point movement = mouse_event.GetMovement();
+ ScalePoint(device_scale_, &point);
+ ScalePoint(device_scale_, &movement);
+ mouse_event = pp::MouseInputEvent(
+ this,
+ event.GetType(),
+ event.GetTimeStamp(),
+ event.GetModifiers(),
+ mouse_event.GetButton(),
+ point,
+ mouse_event.GetClickCount(),
+ movement);
+ event_device_res = mouse_event;
+ }
+ }
+
+ // Check if we need to go to autoscroll mode.
+ if (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEMOVE &&
+ (event.GetModifiers() & PP_INPUTEVENT_MODIFIER_MIDDLEBUTTONDOWN)) {
+ pp::MouseInputEvent mouse_event(event_device_res);
+ pp::Point pos = mouse_event.GetPosition();
+ EnableAutoscroll(pos);
+ UpdateCursor(CalculateAutoscroll(pos));
+ return true;
+ } else {
+ // Quit autoscrolling on any other event.
+ DisableAutoscroll();
+ }
+
+#ifdef ENABLE_THUMBNAILS
+ if (event.GetType() == PP_INPUTEVENT_TYPE_MOUSELEAVE)
+ thumbnails_.SlideOut();
+
+ if (thumbnails_.HandleEvent(event_device_res))
+ return true;
+#endif
+
+ if (toolbar_->HandleEvent(event_device_res))
+ return true;
+
+#ifdef ENABLE_THUMBNAILS
+ if (v_scrollbar_.get() && event.GetType() == PP_INPUTEVENT_TYPE_MOUSEMOVE) {
+ pp::MouseInputEvent mouse_event(event);
+ pp::Point pt = mouse_event.GetPosition();
+ pp::Rect v_scrollbar_rc;
+ v_scrollbar_->GetLocation(&v_scrollbar_rc);
+ // There is a bug (https://bugs.webkit.org/show_bug.cgi?id=45208)
+ // in the webkit that makes event.u.mouse.button
+ // equal to PP_INPUTEVENT_MOUSEBUTTON_LEFT, even when no button is pressed.
+ // To work around this issue we use modifier for now, and will switch
+ // to button once the bug is fixed and webkit got merged back to our tree.
+ if (v_scrollbar_rc.Contains(pt) &&
+ (event.GetModifiers() & PP_INPUTEVENT_MODIFIER_LEFTBUTTONDOWN)) {
+ thumbnails_.SlideIn();
+ }
+
+ // When scrollbar is in the scrolling mode we should display thumbnails
+ // even the mouse is outside the thumbnail and scrollbar areas.
+ // If mouse is outside plugin area, we are still getting mouse move events
+ // while scrolling. See bug description for details:
+ // http://code.google.com/p/chromium/issues/detail?id=56444
+ if (!v_scrollbar_rc.Contains(pt) && thumbnails_.visible() &&
+ !(event.GetModifiers() & PP_INPUTEVENT_MODIFIER_LEFTBUTTONDOWN) &&
+ !thumbnails_.rect().Contains(pt)) {
+ thumbnails_.SlideOut();
+ }
+ }
+#endif
+
+ // Need to pass the event to the engine first, since if we're over an edit
+ // control we want it to get keyboard events (like space) instead of the
+ // scrollbar.
+ // TODO: will have to offset the mouse coordinates once we support bidi and
+ // there could be scrollbars on the left.
+ pp::InputEvent offset_event(event_device_res);
+ bool try_engine_first = true;
+ switch (offset_event.GetType()) {
+ case PP_INPUTEVENT_TYPE_MOUSEDOWN:
+ case PP_INPUTEVENT_TYPE_MOUSEUP:
+ case PP_INPUTEVENT_TYPE_MOUSEMOVE:
+ case PP_INPUTEVENT_TYPE_MOUSEENTER:
+ case PP_INPUTEVENT_TYPE_MOUSELEAVE: {
+ pp::MouseInputEvent mouse_event(event_device_res);
+ pp::MouseInputEvent mouse_event_dip(event);
+ pp::Point point = mouse_event.GetPosition();
+ point.set_x(point.x() - available_area_.x());
+ offset_event = pp::MouseInputEvent(
+ this,
+ event.GetType(),
+ event.GetTimeStamp(),
+ event.GetModifiers(),
+ mouse_event.GetButton(),
+ point,
+ mouse_event.GetClickCount(),
+ mouse_event.GetMovement());
+ if (!engine_->IsSelecting()) {
+ if (!IsOverlayScrollbar() &&
+ !available_area_.Contains(mouse_event.GetPosition())) {
+ try_engine_first = false;
+ } else if (IsOverlayScrollbar()) {
+ pp::Rect temp;
+ if ((v_scrollbar_.get() && v_scrollbar_->GetLocation(&temp) &&
+ temp.Contains(mouse_event_dip.GetPosition())) ||
+ (h_scrollbar_.get() && h_scrollbar_->GetLocation(&temp) &&
+ temp.Contains(mouse_event_dip.GetPosition()))) {
+ try_engine_first = false;
+ }
+ }
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ if (try_engine_first && engine_->HandleEvent(offset_event))
+ return true;
+
+ // Left/Right arrows should scroll to the beginning of the Prev/Next page if
+ // there is no horizontal scroll bar.
+ // If fit-to-height, PgDown/PgUp should scroll to the beginning of the
+ // Prev/Next page. Spacebar / shift+spacebar should do the same.
+ if (v_scrollbar_.get() && event.GetType() == PP_INPUTEVENT_TYPE_KEYDOWN) {
+ pp::KeyboardInputEvent keyboard_event(event);
+ bool no_h_scrollbar = !h_scrollbar_.get();
+ uint32_t key_code = keyboard_event.GetKeyCode();
+ bool page_down = no_h_scrollbar && key_code == ui::VKEY_RIGHT;
+ bool page_up = no_h_scrollbar && key_code == ui::VKEY_LEFT;
+ if (zoom_mode_ == ZOOM_FIT_TO_PAGE) {
+ bool has_shift =
+ keyboard_event.GetModifiers() & PP_INPUTEVENT_MODIFIER_SHIFTKEY;
+ bool key_is_space = key_code == ui::VKEY_SPACE;
+ page_down |= key_is_space || key_code == ui::VKEY_NEXT;
+ page_up |= (key_is_space && has_shift) || (key_code == ui::VKEY_PRIOR);
+ }
+ if (page_down) {
+ int page = engine_->GetFirstVisiblePage();
+ if (page == -1)
+ return true;
+ // Engine calculates visible page including delimiter to the page size.
+ // We need to check here if the page itself is completely out of view and
+ // scroll to the next one in that case.
+ if (engine_->GetPageRect(page).bottom() * zoom_ <=
+ v_scrollbar_->GetValue())
+ page++;
+ ScrollToPage(page + 1);
+ UpdateCursor(PP_CURSORTYPE_POINTER);
+ return true;
+ } else if (page_up) {
+ int page = engine_->GetFirstVisiblePage();
+ if (page == -1)
+ return true;
+ if (engine_->GetPageRect(page).y() * zoom_ >= v_scrollbar_->GetValue())
+ page--;
+ ScrollToPage(page);
+ UpdateCursor(PP_CURSORTYPE_POINTER);
+ return true;
+ }
+ }
+
+ if (v_scrollbar_.get() && v_scrollbar_->HandleEvent(event)) {
+ UpdateCursor(PP_CURSORTYPE_POINTER);
+ return true;
+ }
+
+ if (h_scrollbar_.get() && h_scrollbar_->HandleEvent(event)) {
+ UpdateCursor(PP_CURSORTYPE_POINTER);
+ return true;
+ }
+
+ if (timer_pending_ &&
+ (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEUP ||
+ event.GetType() == PP_INPUTEVENT_TYPE_MOUSEMOVE)) {
+ timer_factory_.CancelAll();
+ timer_pending_ = false;
+ } else if (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEMOVE &&
+ engine_->IsSelecting()) {
+ bool set_timer = false;
+ pp::MouseInputEvent mouse_event(event);
+ if (v_scrollbar_.get() &&
+ (mouse_event.GetPosition().y() <= 0 ||
+ mouse_event.GetPosition().y() >= (plugin_dip_size_.height() - 1))) {
+ v_scrollbar_->ScrollBy(
+ PP_SCROLLBY_LINE, mouse_event.GetPosition().y() >= 0 ? 1: -1);
+ set_timer = true;
+ }
+ if (h_scrollbar_.get() &&
+ (mouse_event.GetPosition().x() <= 0 ||
+ mouse_event.GetPosition().x() >= (plugin_dip_size_.width() - 1))) {
+ h_scrollbar_->ScrollBy(PP_SCROLLBY_LINE,
+ mouse_event.GetPosition().x() >= 0 ? 1: -1);
+ set_timer = true;
+ }
+
+ if (set_timer) {
+ last_mouse_event_ = pp::MouseInputEvent(event);
+
+ pp::CompletionCallback callback =
+ timer_factory_.NewCallback(&Instance::OnTimerFired);
+ pp::Module::Get()->core()->CallOnMainThread(kDragTimerMs, callback);
+ timer_pending_ = true;
+ }
+ }
+
+ if (event.GetType() == PP_INPUTEVENT_TYPE_KEYDOWN) {
+ pp::KeyboardInputEvent keyboard_event(event);
+ const uint32 modifier = event.GetModifiers();
+ if (modifier & kDefaultKeyModifier) {
+ switch (keyboard_event.GetKeyCode()) {
+ case 'A':
+ engine_->SelectAll();
+ return true;
+ }
+ } else if (modifier & PP_INPUTEVENT_MODIFIER_CONTROLKEY) {
+ switch (keyboard_event.GetKeyCode()) {
+ case ui::VKEY_OEM_4:
+ // Left bracket.
+ engine_->RotateCounterclockwise();
+ return true;
+ case ui::VKEY_OEM_6:
+ // Right bracket.
+ engine_->RotateClockwise();
+ return true;
+ }
+ }
+ }
+
+ // Return true for unhandled clicks so the plugin takes focus.
+ return (event.GetType() == PP_INPUTEVENT_TYPE_MOUSEDOWN);
+}
+
+void Instance::DidChangeView(const pp::View& view) {
+ pp::Rect view_rect(view.GetRect());
+ float device_scale = 1.0f;
+ float old_device_scale = device_scale_;
+ if (hidpi_enabled_)
+ device_scale = view.GetDeviceScale();
+ pp::Size view_device_size(view_rect.width() * device_scale,
+ view_rect.height() * device_scale);
+ if (view_device_size == plugin_size_ && device_scale == device_scale_)
+ return; // We don't care about the position, only the size.
+
+ image_data_ = pp::ImageData();
+ device_scale_ = device_scale;
+ plugin_dip_size_ = view_rect.size();
+ plugin_size_ = view_device_size;
+
+ paint_manager_.SetSize(view_device_size, device_scale_);
+
+ image_data_ = pp::ImageData(this,
+ PP_IMAGEDATAFORMAT_BGRA_PREMUL,
+ plugin_size_,
+ false);
+ if (image_data_.is_null()) {
+ DCHECK(plugin_size_.IsEmpty());
+ return;
+ }
+
+ // View dimensions changed, disable autoscroll (if it was enabled).
+ DisableAutoscroll();
+
+ OnGeometryChanged(zoom_, old_device_scale);
+}
+
+pp::Var Instance::GetInstanceObject() {
+ if (instance_object_.is_undefined()) {
+ PDFScriptableObject* object = new PDFScriptableObject(this);
+ // The pp::Var takes ownership of object here.
+ instance_object_ = pp::VarPrivate(this, object);
+ }
+
+ return instance_object_;
+}
+
+pp::Var Instance::GetLinkAtPosition(const pp::Point& point) {
+ pp::Point offset_point(point);
+ ScalePoint(device_scale_, &offset_point);
+ offset_point.set_x(offset_point.x() - available_area_.x());
+ return engine_->GetLinkAtPosition(offset_point);
+}
+
+pp::Var Instance::GetSelectedText(bool html) {
+ if (html || !engine_->HasPermission(PDFEngine::PERMISSION_COPY))
+ return pp::Var();
+ return engine_->GetSelectedText();
+}
+
+void Instance::InvalidateWidget(pp::Widget_Dev widget,
+ const pp::Rect& dirty_rect) {
+ if (v_scrollbar_.get() && *v_scrollbar_ == widget) {
+ if (!image_data_.is_null())
+ v_scrollbar_->Paint(dirty_rect.pp_rect(), &image_data_);
+ } else if (h_scrollbar_.get() && *h_scrollbar_ == widget) {
+ if (!image_data_.is_null())
+ h_scrollbar_->Paint(dirty_rect.pp_rect(), &image_data_);
+ } else {
+ // Possible to hit this condition since sometimes the scrollbar codes posts
+ // a task to do something later, and we could have deleted our reference in
+ // the meantime.
+ return;
+ }
+
+ pp::Rect dirty_rect_scaled = dirty_rect;
+ ScaleRect(device_scale_, &dirty_rect_scaled);
+ paint_manager_.InvalidateRect(dirty_rect_scaled);
+}
+
+void Instance::ScrollbarValueChanged(pp::Scrollbar_Dev scrollbar,
+ uint32_t value) {
+ value = GetScaled(value);
+ if (v_scrollbar_.get() && *v_scrollbar_ == scrollbar) {
+ engine_->ScrolledToYPosition(value);
+ pp::Rect rc;
+ v_scrollbar_->GetLocation(&rc);
+ int32 doc_height = GetDocumentPixelHeight();
+ doc_height -= GetScaled(rc.height());
+#ifdef ENABLE_THUMBNAILS
+ if (thumbnails_.visible()) {
+ thumbnails_.SetPosition(value, doc_height, true);
+ }
+#endif
+ pp::Point origin(
+ plugin_size_.width() - page_indicator_.rect().width() -
+ GetScaled(GetScrollbarReservedThickness()),
+ page_indicator_.GetYPosition(value, doc_height, plugin_size_.height()));
+ page_indicator_.MoveTo(origin, page_indicator_.visible());
+ } else if (h_scrollbar_.get() && *h_scrollbar_ == scrollbar) {
+ engine_->ScrolledToXPosition(value);
+ }
+}
+
+void Instance::ScrollbarOverlayChanged(pp::Scrollbar_Dev scrollbar,
+ bool overlay) {
+ scrollbar_reserved_thickness_ = overlay ? 0 : scrollbar_thickness_;
+ OnGeometryChanged(zoom_, device_scale_);
+}
+
+uint32_t Instance::QuerySupportedPrintOutputFormats() {
+ return engine_->QuerySupportedPrintOutputFormats();
+}
+
+int32_t Instance::PrintBegin(const PP_PrintSettings_Dev& print_settings) {
+ // For us num_pages is always equal to the number of pages in the PDF
+ // document irrespective of the printable area.
+ int32_t ret = engine_->GetNumberOfPages();
+ if (!ret)
+ return 0;
+
+ uint32_t supported_formats = engine_->QuerySupportedPrintOutputFormats();
+ if ((print_settings.format & supported_formats) == 0)
+ return 0;
+
+ print_settings_.is_printing = true;
+ print_settings_.pepper_print_settings = print_settings;
+ engine_->PrintBegin();
+ return ret;
+}
+
+pp::Resource Instance::PrintPages(
+ const PP_PrintPageNumberRange_Dev* page_ranges,
+ uint32_t page_range_count) {
+ if (!print_settings_.is_printing)
+ return pp::Resource();
+
+ print_settings_.print_pages_called_ = true;
+ return engine_->PrintPages(page_ranges, page_range_count,
+ print_settings_.pepper_print_settings);
+}
+
+void Instance::PrintEnd() {
+ if (print_settings_.print_pages_called_)
+ UserMetricsRecordAction("PDF.PrintPage");
+ print_settings_.Clear();
+ engine_->PrintEnd();
+}
+
+bool Instance::IsPrintScalingDisabled() {
+ return !engine_->GetPrintScaling();
+}
+
+bool Instance::StartFind(const std::string& text, bool case_sensitive) {
+ engine_->StartFind(text.c_str(), case_sensitive);
+ return true;
+}
+
+void Instance::SelectFindResult(bool forward) {
+ engine_->SelectFindResult(forward);
+}
+
+void Instance::StopFind() {
+ engine_->StopFind();
+}
+
+void Instance::Zoom(double scale, bool text_only) {
+ UserMetricsRecordAction("PDF.ZoomFromBrowser");
+
+ // If the zoom level doesn't change it means that this zoom change might have
+ // been initiated by the plugin. In that case, we don't want to change the
+ // zoom mode to ZOOM_SCALE as it may have been intentionally set to
+ // ZOOM_FIT_TO_PAGE or some other value when the zoom was last changed.
+ if (scale == zoom_)
+ return;
+
+ SetZoom(ZOOM_SCALE, scale);
+}
+
+void Instance::ZoomChanged(double factor) {
+ if (full_)
+ Zoom_Dev::ZoomChanged(factor);
+}
+
+void Instance::OnPaint(const std::vector<pp::Rect>& paint_rects,
+ std::vector<PaintManager::ReadyRect>* ready,
+ std::vector<pp::Rect>* pending) {
+ if (image_data_.is_null()) {
+ DCHECK(plugin_size_.IsEmpty());
+ return;
+ }
+ if (first_paint_) {
+ first_paint_ = false;
+ pp::Rect rect = pp::Rect(pp::Point(), plugin_size_);
+ FillRect(rect, kBackgroundColor);
+ ready->push_back(PaintManager::ReadyRect(rect, image_data_, true));
+ *pending = paint_rects;
+ return;
+ }
+
+ engine_->PrePaint();
+
+ for (size_t i = 0; i < paint_rects.size(); i++) {
+ // Intersect with plugin area since there could be pending invalidates from
+ // when the plugin area was larger.
+ pp::Rect rect =
+ paint_rects[i].Intersect(pp::Rect(pp::Point(), plugin_size_));
+ if (rect.IsEmpty())
+ continue;
+
+ pp::Rect pdf_rect = available_area_.Intersect(rect);
+ if (!pdf_rect.IsEmpty()) {
+ pdf_rect.Offset(available_area_.x() * -1, 0);
+
+ std::vector<pp::Rect> pdf_ready;
+ std::vector<pp::Rect> pdf_pending;
+ engine_->Paint(pdf_rect, &image_data_, &pdf_ready, &pdf_pending);
+ for (size_t j = 0; j < pdf_ready.size(); ++j) {
+ pdf_ready[j].Offset(available_area_.point());
+ ready->push_back(
+ PaintManager::ReadyRect(pdf_ready[j], image_data_, false));
+ }
+ for (size_t j = 0; j < pdf_pending.size(); ++j) {
+ pdf_pending[j].Offset(available_area_.point());
+ pending->push_back(pdf_pending[j]);
+ }
+ }
+
+ for (size_t j = 0; j < background_parts_.size(); ++j) {
+ pp::Rect intersection = background_parts_[j].location.Intersect(rect);
+ if (!intersection.IsEmpty()) {
+ FillRect(intersection, background_parts_[j].color);
+ ready->push_back(
+ PaintManager::ReadyRect(intersection, image_data_, false));
+ }
+ }
+
+ if (document_load_state_ == LOAD_STATE_FAILED) {
+ pp::Point top_center;
+ top_center.set_x(plugin_size_.width() / 2);
+ top_center.set_y(plugin_size_.height() / 2);
+ DrawText(top_center, PP_RESOURCESTRING_PDFLOAD_FAILED);
+ }
+
+#ifdef ENABLE_THUMBNAILS
+ thumbnails_.Paint(&image_data_, rect);
+#endif
+ }
+
+ engine_->PostPaint();
+
+ // Must paint scrollbars after the background parts, in case we have an
+ // overlay scrollbar that's over the background. We also do this in a separate
+ // loop because the scrollbar painting logic uses the signal of whether there
+ // are pending paints or not to figure out if it should draw right away or
+ // not.
+ for (size_t i = 0; i < paint_rects.size(); i++) {
+ PaintIfWidgetIntersects(h_scrollbar_.get(), paint_rects[i], ready, pending);
+ PaintIfWidgetIntersects(v_scrollbar_.get(), paint_rects[i], ready, pending);
+ }
+
+ if (progress_bar_.visible())
+ PaintOverlayControl(&progress_bar_, &image_data_, ready);
+
+ if (page_indicator_.visible())
+ PaintOverlayControl(&page_indicator_, &image_data_, ready);
+
+ if (toolbar_->current_transparency() != kTransparentAlpha)
+ PaintOverlayControl(toolbar_.get(), &image_data_, ready);
+
+ // Paint autoscroll anchor if needed.
+ if (is_autoscroll_) {
+ size_t limit = ready->size();
+ for (size_t i = 0; i < limit; i++) {
+ pp::Rect anchor_rect = autoscroll_rect_.Intersect((*ready)[i].rect);
+ if (!anchor_rect.IsEmpty()) {
+ pp::Rect draw_rc = pp::Rect(
+ pp::Point(anchor_rect.x() - autoscroll_rect_.x(),
+ anchor_rect.y() - autoscroll_rect_.y()),
+ anchor_rect.size());
+ // Paint autoscroll anchor.
+ AlphaBlend(autoscroll_anchor_, draw_rc,
+ &image_data_, anchor_rect.point(), kOpaqueAlpha);
+ }
+ }
+ }
+}
+
+void Instance::PaintOverlayControl(
+ Control* ctrl,
+ pp::ImageData* image_data,
+ std::vector<PaintManager::ReadyRect>* ready) {
+ // Make sure that we only paint overlay controls over an area that's ready,
+ // i.e. not pending. Otherwise we'll mark the control rect as ready and
+ // it'll overwrite the pdf region.
+ std::list<pp::Rect> ctrl_rects;
+ for (size_t i = 0; i < ready->size(); i++) {
+ pp::Rect rc = ctrl->rect().Intersect((*ready)[i].rect);
+ if (!rc.IsEmpty())
+ ctrl_rects.push_back(rc);
+ }
+
+ if (!ctrl_rects.empty()) {
+ ctrl->PaintMultipleRects(image_data, ctrl_rects);
+
+ std::list<pp::Rect>::iterator iter;
+ for (iter = ctrl_rects.begin(); iter != ctrl_rects.end(); ++iter) {
+ ready->push_back(PaintManager::ReadyRect(*iter, *image_data, false));
+ }
+ }
+}
+
+void Instance::DidOpen(int32_t result) {
+ if (result == PP_OK) {
+ engine_->HandleDocumentLoad(embed_loader_);
+ } else if (result != PP_ERROR_ABORTED) { // Can happen in tests.
+ NOTREACHED();
+ }
+}
+
+void Instance::DidOpenPreview(int32_t result) {
+ if (result == PP_OK) {
+ preview_engine_.reset(PDFEngine::Create(new PreviewModeClient(this)));
+ preview_engine_->HandleDocumentLoad(embed_preview_loader_);
+ } else {
+ NOTREACHED();
+ }
+}
+
+void Instance::PaintIfWidgetIntersects(
+ pp::Widget_Dev* widget,
+ const pp::Rect& rect,
+ std::vector<PaintManager::ReadyRect>* ready,
+ std::vector<pp::Rect>* pending) {
+ if (!widget)
+ return;
+
+ pp::Rect location;
+ if (!widget->GetLocation(&location))
+ return;
+
+ ScaleRect(device_scale_, &location);
+ location = location.Intersect(rect);
+ if (location.IsEmpty())
+ return;
+
+ if (IsOverlayScrollbar()) {
+ // If we're using overlay scrollbars, and there are pending paints under the
+ // scrollbar, don't update the scrollbar instantly. While it would be nice,
+ // we would need to double buffer the plugin area in order to make this
+ // work. This is because we'd need to always have a copy of what the pdf
+ // under the scrollbar looks like, and additionally we couldn't paint the
+ // pdf under the scrollbar if it's ready until we got the preceding flush.
+ // So in practice, it would make painting slower and introduce extra buffer
+ // copies for the general case.
+ for (size_t i = 0; i < pending->size(); ++i) {
+ if ((*pending)[i].Intersects(location))
+ return;
+ }
+
+ // Even if none of the pending paints are under the scrollbar, we never want
+ // to paint it if it's over the pdf if there are other pending paints.
+ // Otherwise different parts of the pdf plugin would display at different
+ // scroll offsets.
+ if (!pending->empty() && available_area_.Intersects(rect)) {
+ pending->push_back(location);
+ return;
+ }
+ }
+
+ pp::Rect location_dip = location;
+ ScaleRect(1.0f / device_scale_, &location_dip);
+
+ DCHECK(!image_data_.is_null());
+ widget->Paint(location_dip, &image_data_);
+
+ ready->push_back(PaintManager::ReadyRect(location, image_data_, true));
+}
+
+void Instance::OnTimerFired(int32_t) {
+ HandleInputEvent(last_mouse_event_);
+}
+
+void Instance::OnClientTimerFired(int32_t id) {
+ engine_->OnCallback(id);
+}
+
+void Instance::OnControlTimerFired(int32_t,
+ const uint32& control_id,
+ const uint32& timer_id) {
+ if (control_id == toolbar_->id()) {
+ toolbar_->OnTimerFired(timer_id);
+ } else if (control_id == progress_bar_.id()) {
+ if (timer_id == delayed_progress_timer_id_) {
+ if (document_load_state_ == LOAD_STATE_LOADING &&
+ !progress_bar_.visible()) {
+ progress_bar_.Fade(true, kProgressFadeTimeoutMs);
+ }
+ delayed_progress_timer_id_ = 0;
+ } else {
+ progress_bar_.OnTimerFired(timer_id);
+ }
+ } else if (control_id == kAutoScrollId) {
+ if (is_autoscroll_) {
+ if (autoscroll_x_ != 0 && h_scrollbar_.get()) {
+ h_scrollbar_->ScrollBy(PP_SCROLLBY_PIXEL, autoscroll_x_);
+ }
+ if (autoscroll_y_ != 0 && v_scrollbar_.get()) {
+ v_scrollbar_->ScrollBy(PP_SCROLLBY_PIXEL, autoscroll_y_);
+ }
+
+ // Reschedule timer.
+ ScheduleTimer(kAutoScrollId, kAutoScrollTimeoutMs);
+ }
+ } else if (control_id == kPageIndicatorId) {
+ page_indicator_.OnTimerFired(timer_id);
+ }
+#ifdef ENABLE_THUMBNAILS
+ else if (control_id == thumbnails_.id()) {
+ thumbnails_.OnTimerFired(timer_id);
+ }
+#endif
+}
+
+void Instance::CalculateBackgroundParts() {
+ background_parts_.clear();
+ int v_scrollbar_thickness =
+ GetScaled(v_scrollbar_.get() ? GetScrollbarReservedThickness() : 0);
+ int h_scrollbar_thickness =
+ GetScaled(h_scrollbar_.get() ? GetScrollbarReservedThickness() : 0);
+ int width_without_scrollbar = std::max(
+ plugin_size_.width() - v_scrollbar_thickness, 0);
+ int height_without_scrollbar = std::max(
+ plugin_size_.height() - h_scrollbar_thickness, 0);
+ int left_width = available_area_.x();
+ int right_start = available_area_.right();
+ int right_width = abs(width_without_scrollbar - available_area_.right());
+ int bottom = std::min(available_area_.bottom(), height_without_scrollbar);
+
+ // Add the left, right, and bottom rectangles. Note: we assume only
+ // horizontal centering.
+ BackgroundPart part = {
+ pp::Rect(0, 0, left_width, bottom),
+ kBackgroundColor
+ };
+ if (!part.location.IsEmpty())
+ background_parts_.push_back(part);
+ part.location = pp::Rect(right_start, 0, right_width, bottom);
+ if (!part.location.IsEmpty())
+ background_parts_.push_back(part);
+ part.location = pp::Rect(
+ 0, bottom, width_without_scrollbar, height_without_scrollbar - bottom);
+ if (!part.location.IsEmpty())
+ background_parts_.push_back(part);
+
+ if (h_scrollbar_thickness
+#if defined(OS_MACOSX)
+ ||
+#else
+ &&
+#endif
+ v_scrollbar_thickness) {
+ part.color = 0xFFFFFFFF;
+ part.location = pp::Rect(plugin_size_.width() - v_scrollbar_thickness,
+ plugin_size_.height() - h_scrollbar_thickness,
+ h_scrollbar_thickness,
+ v_scrollbar_thickness);
+ background_parts_.push_back(part);
+ }
+}
+
+int Instance::GetDocumentPixelWidth() const {
+ return static_cast<int>(ceil(document_size_.width() * zoom_ * device_scale_));
+}
+
+int Instance::GetDocumentPixelHeight() const {
+ return static_cast<int>(ceil(document_size_.height() *
+ zoom_ *
+ device_scale_));
+}
+
+void Instance::FillRect(const pp::Rect& rect, uint32 color) {
+ DCHECK(!image_data_.is_null() || rect.IsEmpty());
+ uint32* buffer_start = static_cast<uint32*>(image_data_.data());
+ int stride = image_data_.stride();
+ uint32* ptr = buffer_start + rect.y() * stride / 4 + rect.x();
+ int height = rect.height();
+ int width = rect.width();
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x)
+ *(ptr + x) = color;
+ ptr += stride / 4;
+ }
+}
+
+void Instance::DocumentSizeUpdated(const pp::Size& size) {
+ document_size_ = size;
+
+ OnGeometryChanged(zoom_, device_scale_);
+}
+
+void Instance::Invalidate(const pp::Rect& rect) {
+ pp::Rect offset_rect(rect);
+ offset_rect.Offset(available_area_.point());
+ paint_manager_.InvalidateRect(offset_rect);
+}
+
+void Instance::Scroll(const pp::Point& point) {
+ pp::Rect scroll_area = available_area_;
+ if (IsOverlayScrollbar()) {
+ pp::Rect rc;
+ if (h_scrollbar_.get()) {
+ h_scrollbar_->GetLocation(&rc);
+ ScaleRect(device_scale_, &rc);
+ if (scroll_area.bottom() > rc.y()) {
+ scroll_area.set_height(rc.y() - scroll_area.y());
+ paint_manager_.InvalidateRect(rc);
+ }
+ }
+ if (v_scrollbar_.get()) {
+ v_scrollbar_->GetLocation(&rc);
+ ScaleRect(device_scale_, &rc);
+ if (scroll_area.right() > rc.x()) {
+ scroll_area.set_width(rc.x() - scroll_area.x());
+ paint_manager_.InvalidateRect(rc);
+ }
+ }
+ }
+ paint_manager_.ScrollRect(scroll_area, point);
+
+ if (toolbar_->current_transparency() != kTransparentAlpha)
+ paint_manager_.InvalidateRect(toolbar_->GetControlsRect());
+
+ if (progress_bar_.visible())
+ paint_manager_.InvalidateRect(progress_bar_.rect());
+
+ if (is_autoscroll_)
+ paint_manager_.InvalidateRect(autoscroll_rect_);
+
+ if (show_page_indicator_) {
+ page_indicator_.set_current_page(GetPageNumberToDisplay());
+ page_indicator_.Splash();
+ }
+
+ if (page_indicator_.visible())
+ paint_manager_.InvalidateRect(page_indicator_.rect());
+
+ // Run the scroll callback asynchronously. This function can be invoked by a
+ // layout change which should not re-enter into JS synchronously.
+ pp::CompletionCallback callback =
+ callback_factory_.NewCallback(&Instance::RunCallback,
+ on_scroll_callback_);
+ pp::Module::Get()->core()->CallOnMainThread(0, callback);
+}
+
+void Instance::ScrollToX(int position) {
+ if (!h_scrollbar_.get()) {
+ NOTREACHED();
+ return;
+ }
+ int position_dip = static_cast<int>(position / device_scale_);
+ h_scrollbar_->SetValue(position_dip);
+}
+
+void Instance::ScrollToY(int position) {
+ if (!v_scrollbar_.get()) {
+ NOTREACHED();
+ return;
+ }
+ int position_dip = static_cast<int>(position / device_scale_);
+ v_scrollbar_->SetValue(ClipToRange(position_dip, 0, valid_v_range_));
+}
+
+void Instance::ScrollToPage(int page) {
+ if (!v_scrollbar_.get())
+ return;
+
+ if (engine_->GetNumberOfPages() == 0)
+ return;
+
+ int index = ClipToRange(page, 0, engine_->GetNumberOfPages() - 1);
+ pp::Rect rect = engine_->GetPageRect(index);
+ // If we are trying to scroll pass the last page,
+ // scroll to the end of the last page.
+ int position = index < page ? rect.bottom() : rect.y();
+ ScrollToY(position * zoom_ * device_scale_);
+}
+
+void Instance::NavigateTo(const std::string& url, bool open_in_new_tab) {
+ std::string url_copy(url);
+
+ // Empty |url_copy| is ok, and will effectively be a reload.
+ // Skip the code below so an empty URL does not turn into "http://", which
+ // will cause GURL to fail a DCHECK.
+ if (!url_copy.empty()) {
+ // If |url_copy| starts with '#', then it's for the same URL with a
+ // different URL fragment.
+ if (url_copy[0] == '#') {
+ url_copy = url_ + url_copy;
+ // Changing the href does not actually do anything when navigating in the
+ // same tab, so do the actual page scroll here. Then fall through so the
+ // href gets updated.
+ if (!open_in_new_tab) {
+ int page_number = GetInitialPage(url_copy);
+ if (page_number >= 0)
+ ScrollToPage(page_number);
+ }
+ }
+ // If there's no scheme, add http.
+ if (url_copy.find("://") == std::string::npos &&
+ url_copy.find("mailto:") == std::string::npos) {
+ url_copy = "http://" + url_copy;
+ }
+ // Make sure |url_copy| starts with a valid scheme.
+ if (url_copy.find("http://") != 0 &&
+ url_copy.find("https://") != 0 &&
+ url_copy.find("ftp://") != 0 &&
+ url_copy.find("file://") != 0 &&
+ url_copy.find("mailto:") != 0) {
+ return;
+ }
+ // Make sure |url_copy| is not only a scheme.
+ if (url_copy == "http://" ||
+ url_copy == "https://" ||
+ url_copy == "ftp://" ||
+ url_copy == "file://" ||
+ url_copy == "mailto:") {
+ return;
+ }
+ }
+ if (open_in_new_tab) {
+ GetWindowObject().Call("open", url_copy);
+ } else {
+ GetWindowObject().GetProperty("top").GetProperty("location").
+ SetProperty("href", url_copy);
+ }
+}
+
+void Instance::UpdateCursor(PP_CursorType_Dev cursor) {
+ if (cursor == cursor_)
+ return;
+ cursor_ = cursor;
+
+ const PPB_CursorControl_Dev* cursor_interface =
+ reinterpret_cast<const PPB_CursorControl_Dev*>(
+ pp::Module::Get()->GetBrowserInterface(PPB_CURSOR_CONTROL_DEV_INTERFACE));
+ if (!cursor_interface) {
+ NOTREACHED();
+ return;
+ }
+
+ cursor_interface->SetCursor(
+ pp_instance(), cursor_, pp::ImageData().pp_resource(), NULL);
+}
+
+void Instance::UpdateTickMarks(const std::vector<pp::Rect>& tickmarks) {
+ if (!v_scrollbar_.get())
+ return;
+
+ float inverse_scale = 1.0f / device_scale_;
+ std::vector<pp::Rect> scaled_tickmarks = tickmarks;
+ for (size_t i = 0; i < scaled_tickmarks.size(); i++) {
+ ScaleRect(inverse_scale, &scaled_tickmarks[i]);
+ }
+
+ v_scrollbar_->SetTickMarks(
+ scaled_tickmarks.empty() ? NULL : &scaled_tickmarks[0], tickmarks.size());
+}
+
+void Instance::NotifyNumberOfFindResultsChanged(int total, bool final_result) {
+ NumberOfFindResultsChanged(total, final_result);
+}
+
+void Instance::NotifySelectedFindResultChanged(int current_find_index) {
+ SelectedFindResultChanged(current_find_index);
+}
+
+void Instance::OnEvent(uint32 control_id, uint32 event_id, void* data) {
+ if (event_id == Button::EVENT_ID_BUTTON_CLICKED ||
+ event_id == Button::EVENT_ID_BUTTON_STATE_CHANGED) {
+ switch (control_id) {
+ case kFitToPageButtonId:
+ UserMetricsRecordAction("PDF.FitToPageButton");
+ SetZoom(ZOOM_FIT_TO_PAGE, 0);
+ ZoomChanged(zoom_);
+ break;
+ case kFitToWidthButtonId:
+ UserMetricsRecordAction("PDF.FitToWidthButton");
+ SetZoom(ZOOM_FIT_TO_WIDTH, 0);
+ ZoomChanged(zoom_);
+ break;
+ case kZoomOutButtonId:
+ case kZoomInButtonId:
+ UserMetricsRecordAction(control_id == kZoomOutButtonId ?
+ "PDF.ZoomOutButton" : "PDF.ZoomInButton");
+ SetZoom(ZOOM_SCALE, CalculateZoom(control_id));
+ ZoomChanged(zoom_);
+ break;
+ case kSaveButtonId:
+ UserMetricsRecordAction("PDF.SaveButton");
+ SaveAs();
+ break;
+ case kPrintButtonId:
+ UserMetricsRecordAction("PDF.PrintButton");
+ Print();
+ break;
+ }
+ }
+ if (control_id == kThumbnailsId &&
+ event_id == ThumbnailControl::EVENT_ID_THUMBNAIL_SELECTED) {
+ int page = *static_cast<int*>(data);
+ pp::Rect page_rc(engine_->GetPageRect(page));
+ ScrollToY(static_cast<int>(page_rc.y() * zoom_ * device_scale_));
+ }
+}
+
+void Instance::Invalidate(uint32 control_id, const pp::Rect& rc) {
+ paint_manager_.InvalidateRect(rc);
+}
+
+uint32 Instance::ScheduleTimer(uint32 control_id, uint32 timeout_ms) {
+ current_timer_id_++;
+ pp::CompletionCallback callback =
+ timer_factory_.NewCallback(&Instance::OnControlTimerFired,
+ control_id,
+ current_timer_id_);
+ pp::Module::Get()->core()->CallOnMainThread(timeout_ms, callback);
+ return current_timer_id_;
+}
+
+void Instance::SetEventCapture(uint32 control_id, bool set_capture) {
+ // TODO(gene): set event capture here.
+}
+
+void Instance::SetCursor(uint32 control_id, PP_CursorType_Dev cursor_type) {
+ UpdateCursor(cursor_type);
+}
+
+pp::Instance* Instance::GetInstance() {
+ return this;
+}
+
+void Instance::GetDocumentPassword(
+ pp::CompletionCallbackWithOutput<pp::Var> callback) {
+ std::string message(GetLocalizedString(PP_RESOURCESTRING_PDFGETPASSWORD));
+ pp::Var result = pp::PDF::ModalPromptForPassword(this, message);
+ *callback.output() = result.pp_var();
+ callback.Run(PP_OK);
+}
+
+void Instance::Alert(const std::string& message) {
+ GetWindowObject().Call("alert", message);
+}
+
+bool Instance::Confirm(const std::string& message) {
+ pp::Var result = GetWindowObject().Call("confirm", message);
+ return result.is_bool() ? result.AsBool() : false;
+}
+
+std::string Instance::Prompt(const std::string& question,
+ const std::string& default_answer) {
+ pp::Var result = GetWindowObject().Call("prompt", question, default_answer);
+ return result.is_string() ? result.AsString() : std::string();
+}
+
+std::string Instance::GetURL() {
+ return url_;
+}
+
+void Instance::Email(const std::string& to,
+ const std::string& cc,
+ const std::string& bcc,
+ const std::string& subject,
+ const std::string& body) {
+ std::string javascript =
+ "var href = 'mailto:" + net::EscapeUrlEncodedData(to, false) +
+ "?cc=" + net::EscapeUrlEncodedData(cc, false) +
+ "&bcc=" + net::EscapeUrlEncodedData(bcc, false) +
+ "&subject=" + net::EscapeUrlEncodedData(subject, false) +
+ "&body=" + net::EscapeUrlEncodedData(body, false) +
+ "';var temp = window.open(href, '_blank', " +
+ "'width=1,height=1');if(temp) temp.close();";
+ ExecuteScript(javascript);
+}
+
+void Instance::Print() {
+ if (!printing_enabled_ ||
+ (!engine_->HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY) &&
+ !engine_->HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY))) {
+ return;
+ }
+
+ pp::CompletionCallback callback =
+ callback_factory_.NewCallback(&Instance::OnPrint);
+ pp::Module::Get()->core()->CallOnMainThread(0, callback);
+}
+
+void Instance::OnPrint(int32_t) {
+ pp::PDF::Print(this);
+}
+
+void Instance::SaveAs() {
+ pp::PDF::SaveAs(this);
+}
+
+void Instance::SubmitForm(const std::string& url,
+ const void* data,
+ int length) {
+ pp::URLRequestInfo request(this);
+ request.SetURL(url);
+ request.SetMethod("POST");
+ request.AppendDataToBody(reinterpret_cast<const char*>(data), length);
+
+ pp::CompletionCallback callback =
+ form_factory_.NewCallback(&Instance::FormDidOpen);
+ form_loader_ = CreateURLLoaderInternal();
+ int rv = form_loader_.Open(request, callback);
+ if (rv != PP_OK_COMPLETIONPENDING)
+ callback.Run(rv);
+}
+
+void Instance::FormDidOpen(int32_t result) {
+ // TODO: inform the user of success/failure.
+ if (result != PP_OK) {
+ NOTREACHED();
+ }
+}
+
+std::string Instance::ShowFileSelectionDialog() {
+ // Seems like very low priority to implement, since the pdf has no way to get
+ // the file data anyways. Javascript doesn't let you do this synchronously.
+ NOTREACHED();
+ return std::string();
+}
+
+pp::URLLoader Instance::CreateURLLoader() {
+ if (full_) {
+ if (!did_call_start_loading_) {
+ did_call_start_loading_ = true;
+ pp::PDF::DidStartLoading(this);
+ }
+
+ // Disable save and print until the document is fully loaded, since they
+ // would generate an incomplete document. Need to do this each time we
+ // call DidStartLoading since that resets the content restrictions.
+ pp::PDF::SetContentRestriction(this, CONTENT_RESTRICTION_SAVE |
+ CONTENT_RESTRICTION_PRINT);
+ }
+
+ return CreateURLLoaderInternal();
+}
+
+void Instance::ScheduleCallback(int id, int delay_in_ms) {
+ pp::CompletionCallback callback =
+ timer_factory_.NewCallback(&Instance::OnClientTimerFired);
+ pp::Module::Get()->core()->CallOnMainThread(delay_in_ms, callback, id);
+}
+
+void Instance::SearchString(const base::char16* string,
+ const base::char16* term,
+ bool case_sensitive,
+ std::vector<SearchStringResult>* results) {
+ if (!pp::PDF::IsAvailable()) {
+ NOTREACHED();
+ return;
+ }
+
+ PP_PrivateFindResult* pp_results;
+ int count = 0;
+ pp::PDF::SearchString(
+ this,
+ reinterpret_cast<const unsigned short*>(string),
+ reinterpret_cast<const unsigned short*>(term),
+ case_sensitive,
+ &pp_results,
+ &count);
+
+ results->resize(count);
+ for (int i = 0; i < count; ++i) {
+ (*results)[i].start_index = pp_results[i].start_index;
+ (*results)[i].length = pp_results[i].length;
+ }
+
+ pp::Memory_Dev memory;
+ memory.MemFree(pp_results);
+}
+
+void Instance::DocumentPaintOccurred() {
+ if (painted_first_page_)
+ return;
+
+ painted_first_page_ = true;
+ UpdateToolbarPosition(false);
+ toolbar_->Splash(kToolbarSplashTimeoutMs);
+
+ if (engine_->GetNumberOfPages() > 1)
+ show_page_indicator_ = true;
+ else
+ show_page_indicator_ = false;
+
+ if (v_scrollbar_.get() && show_page_indicator_) {
+ page_indicator_.set_current_page(GetPageNumberToDisplay());
+ page_indicator_.Splash(kToolbarSplashTimeoutMs,
+ kPageIndicatorInitialFadeTimeoutMs);
+ }
+}
+
+void Instance::DocumentLoadComplete(int page_count) {
+ // Clear focus state for OSK.
+ FormTextFieldFocusChange(false);
+
+ // Update progress control.
+ if (progress_bar_.visible())
+ progress_bar_.Fade(false, kProgressFadeTimeoutMs);
+
+ DCHECK(document_load_state_ == LOAD_STATE_LOADING);
+ document_load_state_ = LOAD_STATE_COMPLETE;
+ UserMetricsRecordAction("PDF.LoadSuccess");
+
+ if (did_call_start_loading_) {
+ pp::PDF::DidStopLoading(this);
+ did_call_start_loading_ = false;
+ }
+
+ if (on_load_callback_.is_string())
+ ExecuteScript(on_load_callback_);
+ // Note: If we are in print preview mode on_load_callback_ might call
+ // ScrollTo{X|Y}() and we don't want to scroll again and override it.
+ // #page=N is not supported in Print Preview.
+ if (!IsPrintPreview()) {
+ int initial_page = GetInitialPage(url_);
+ if (initial_page >= 0)
+ ScrollToPage(initial_page);
+ }
+
+ if (!full_)
+ return;
+ if (!pp::PDF::IsAvailable())
+ return;
+
+ int content_restrictions =
+ CONTENT_RESTRICTION_CUT | CONTENT_RESTRICTION_PASTE;
+ if (!engine_->HasPermission(PDFEngine::PERMISSION_COPY))
+ content_restrictions |= CONTENT_RESTRICTION_COPY;
+
+ if (!engine_->HasPermission(PDFEngine::PERMISSION_PRINT_LOW_QUALITY) &&
+ !engine_->HasPermission(PDFEngine::PERMISSION_PRINT_HIGH_QUALITY)) {
+ printing_enabled_ = false;
+ if (current_tb_info_ == kPDFToolbarButtons) {
+ // Remove Print button.
+ CreateToolbar(kPDFNoPrintToolbarButtons,
+ arraysize(kPDFNoPrintToolbarButtons));
+ UpdateToolbarPosition(false);
+ Invalidate(pp::Rect(plugin_size_));
+ }
+ }
+
+ pp::PDF::SetContentRestriction(this, content_restrictions);
+
+ pp::PDF::HistogramPDFPageCount(this, page_count);
+}
+
+void Instance::RotateClockwise() {
+ engine_->RotateClockwise();
+}
+
+void Instance::RotateCounterclockwise() {
+ engine_->RotateCounterclockwise();
+}
+
+void Instance::PreviewDocumentLoadComplete() {
+ if (preview_document_load_state_ != LOAD_STATE_LOADING ||
+ preview_pages_info_.empty()) {
+ return;
+ }
+
+ preview_document_load_state_ = LOAD_STATE_COMPLETE;
+
+ int dest_page_index = preview_pages_info_.front().second;
+ int src_page_index =
+ ExtractPrintPreviewPageIndex(preview_pages_info_.front().first);
+ if (src_page_index > 0 && dest_page_index > -1 && preview_engine_.get())
+ engine_->AppendPage(preview_engine_.get(), dest_page_index);
+
+ preview_pages_info_.pop();
+ // |print_preview_page_count_| is not updated yet. Do not load any
+ // other preview pages till we get this information.
+ if (print_preview_page_count_ == 0)
+ return;
+
+ if (preview_pages_info_.size())
+ LoadAvailablePreviewPage();
+}
+
+void Instance::DocumentLoadFailed() {
+ DCHECK(document_load_state_ == LOAD_STATE_LOADING);
+ UserMetricsRecordAction("PDF.LoadFailure");
+
+ // Hide progress control.
+ progress_bar_.Fade(false, kProgressFadeTimeoutMs);
+
+ if (did_call_start_loading_) {
+ pp::PDF::DidStopLoading(this);
+ did_call_start_loading_ = false;
+ }
+
+ document_load_state_ = LOAD_STATE_FAILED;
+ paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
+}
+
+void Instance::PreviewDocumentLoadFailed() {
+ UserMetricsRecordAction("PDF.PreviewDocumentLoadFailure");
+ if (preview_document_load_state_ != LOAD_STATE_LOADING ||
+ preview_pages_info_.empty()) {
+ return;
+ }
+
+ preview_document_load_state_ = LOAD_STATE_FAILED;
+ preview_pages_info_.pop();
+
+ if (preview_pages_info_.size())
+ LoadAvailablePreviewPage();
+}
+
+pp::Instance* Instance::GetPluginInstance() {
+ return GetInstance();
+}
+
+void Instance::DocumentHasUnsupportedFeature(const std::string& feature) {
+ std::string metric("PDF_Unsupported_");
+ metric += feature;
+ if (!unsupported_features_reported_.count(metric)) {
+ unsupported_features_reported_.insert(metric);
+ UserMetricsRecordAction(metric);
+ }
+
+ // Since we use an info bar, only do this for full frame plugins..
+ if (!full_)
+ return;
+
+ if (told_browser_about_unsupported_feature_)
+ return;
+ told_browser_about_unsupported_feature_ = true;
+
+ pp::PDF::HasUnsupportedFeature(this);
+}
+
+void Instance::DocumentLoadProgress(uint32 available, uint32 doc_size) {
+ double progress = 0.0;
+ if (doc_size == 0) {
+ // Document size is unknown. Use heuristics.
+ // We'll make progress logarithmic from 0 to 100M.
+ static const double kFactor = log(100000000.0) / 100.0;
+ if (available > 0) {
+ progress = log(static_cast<double>(available)) / kFactor;
+ if (progress > 100.0)
+ progress = 100.0;
+ }
+ } else {
+ progress = 100.0 * static_cast<double>(available) / doc_size;
+ }
+ progress_bar_.SetProgress(progress);
+}
+
+void Instance::FormTextFieldFocusChange(bool in_focus) {
+ if (!text_input_.get())
+ return;
+ if (in_focus)
+ text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_TEXT);
+ else
+ text_input_->SetTextInputType(PP_TEXTINPUT_TYPE_DEV_NONE);
+}
+
+// Called by PDFScriptableObject.
+bool Instance::HasScriptableMethod(const pp::Var& method, pp::Var* exception) {
+ std::string method_str = method.AsString();
+ return (method_str == kJSAccessibility ||
+ method_str == kJSDocumentLoadComplete ||
+ method_str == kJSGetHeight ||
+ method_str == kJSGetHorizontalScrollbarThickness ||
+ method_str == kJSGetPageLocationNormalized ||
+ method_str == kJSGetSelectedText ||
+ method_str == kJSGetVerticalScrollbarThickness ||
+ method_str == kJSGetWidth ||
+ method_str == kJSGetZoomLevel ||
+ method_str == kJSGoToPage ||
+ method_str == kJSGrayscale ||
+ method_str == kJSLoadPreviewPage ||
+ method_str == kJSOnLoad ||
+ method_str == kJSOnPluginSizeChanged ||
+ method_str == kJSOnScroll ||
+ method_str == kJSPageXOffset ||
+ method_str == kJSPageYOffset ||
+ method_str == kJSPrintPreviewPageCount ||
+ method_str == kJSReload ||
+ method_str == kJSRemovePrintButton ||
+ method_str == kJSResetPrintPreviewUrl ||
+ method_str == kJSSendKeyEvent ||
+ method_str == kJSSetPageNumbers ||
+ method_str == kJSSetPageXOffset ||
+ method_str == kJSSetPageYOffset ||
+ method_str == kJSSetZoomLevel ||
+ method_str == kJSZoomFitToHeight ||
+ method_str == kJSZoomFitToWidth ||
+ method_str == kJSZoomIn ||
+ method_str == kJSZoomOut);
+}
+
+pp::Var Instance::CallScriptableMethod(const pp::Var& method,
+ const std::vector<pp::Var>& args,
+ pp::Var* exception) {
+ std::string method_str = method.AsString();
+ if (method_str == kJSGrayscale) {
+ if (args.size() == 1 && args[0].is_bool()) {
+ engine_->SetGrayscale(args[0].AsBool());
+ // Redraw
+ paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
+#ifdef ENABLE_THUMBNAILS
+ if (thumbnails_.visible())
+ thumbnails_.Show(true, true);
+#endif
+ return pp::Var(true);
+ }
+ return pp::Var(false);
+ }
+ if (method_str == kJSOnLoad) {
+ if (args.size() == 1 && args[0].is_string()) {
+ on_load_callback_ = args[0];
+ return pp::Var(true);
+ }
+ return pp::Var(false);
+ }
+ if (method_str == kJSOnScroll) {
+ if (args.size() == 1 && args[0].is_string()) {
+ on_scroll_callback_ = args[0];
+ return pp::Var(true);
+ }
+ return pp::Var(false);
+ }
+ if (method_str == kJSOnPluginSizeChanged) {
+ if (args.size() == 1 && args[0].is_string()) {
+ on_plugin_size_changed_callback_ = args[0];
+ return pp::Var(true);
+ }
+ return pp::Var(false);
+ }
+ if (method_str == kJSReload) {
+ document_load_state_ = LOAD_STATE_LOADING;
+ if (!full_)
+ LoadUrl(url_);
+ preview_engine_.reset();
+ print_preview_page_count_ = 0;
+ engine_.reset(PDFEngine::Create(this));
+ engine_->New(url_.c_str());
+#ifdef ENABLE_THUMBNAILS
+ thumbnails_.ResetEngine(engine_.get());
+#endif
+ return pp::Var();
+ }
+ if (method_str == kJSResetPrintPreviewUrl) {
+ if (args.size() == 1 && args[0].is_string()) {
+ url_ = args[0].AsString();
+ preview_pages_info_ = std::queue<PreviewPageInfo>();
+ preview_document_load_state_ = LOAD_STATE_COMPLETE;
+ }
+ return pp::Var();
+ }
+ if (method_str == kJSZoomFitToHeight) {
+ SetZoom(ZOOM_FIT_TO_PAGE, 0);
+ return pp::Var();
+ }
+ if (method_str == kJSZoomFitToWidth) {
+ SetZoom(ZOOM_FIT_TO_WIDTH, 0);
+ return pp::Var();
+ }
+ if (method_str == kJSZoomIn) {
+ SetZoom(ZOOM_SCALE, CalculateZoom(kZoomInButtonId));
+ return pp::Var();
+ }
+ if (method_str == kJSZoomOut) {
+ SetZoom(ZOOM_SCALE, CalculateZoom(kZoomOutButtonId));
+ return pp::Var();
+ }
+ if (method_str == kJSSetZoomLevel) {
+ if (args.size() == 1 && args[0].is_number())
+ SetZoom(ZOOM_SCALE, args[0].AsDouble());
+ return pp::Var();
+ }
+ if (method_str == kJSGetZoomLevel) {
+ return pp::Var(zoom_);
+ }
+ if (method_str == kJSGetHeight) {
+ return pp::Var(plugin_size_.height());
+ }
+ if (method_str == kJSGetWidth) {
+ return pp::Var(plugin_size_.width());
+ }
+ if (method_str == kJSGetHorizontalScrollbarThickness) {
+ return pp::Var(
+ h_scrollbar_.get() ? GetScrollbarReservedThickness() : 0);
+ }
+ if (method_str == kJSGetVerticalScrollbarThickness) {
+ return pp::Var(
+ v_scrollbar_.get() ? GetScrollbarReservedThickness() : 0);
+ }
+ if (method_str == kJSGetSelectedText) {
+ return GetSelectedText(false);
+ }
+ if (method_str == kJSDocumentLoadComplete) {
+ return pp::Var((document_load_state_ != LOAD_STATE_LOADING));
+ }
+ if (method_str == kJSPageYOffset) {
+ return pp::Var(static_cast<int32_t>(
+ v_scrollbar_.get() ? v_scrollbar_->GetValue() : 0));
+ }
+ if (method_str == kJSSetPageYOffset) {
+ if (args.size() == 1 && args[0].is_number() && v_scrollbar_.get())
+ ScrollToY(GetScaled(args[0].AsInt()));
+ return pp::Var();
+ }
+ if (method_str == kJSPageXOffset) {
+ return pp::Var(static_cast<int32_t>(
+ h_scrollbar_.get() ? h_scrollbar_->GetValue() : 0));
+ }
+ if (method_str == kJSSetPageXOffset) {
+ if (args.size() == 1 && args[0].is_number() && h_scrollbar_.get())
+ ScrollToX(GetScaled(args[0].AsInt()));
+ return pp::Var();
+ }
+ if (method_str == kJSRemovePrintButton) {
+ CreateToolbar(kPrintPreviewToolbarButtons,
+ arraysize(kPrintPreviewToolbarButtons));
+ UpdateToolbarPosition(false);
+ Invalidate(pp::Rect(plugin_size_));
+ return pp::Var();
+ }
+ if (method_str == kJSGoToPage) {
+ if (args.size() == 1 && args[0].is_string()) {
+ ScrollToPage(atoi(args[0].AsString().c_str()));
+ }
+ return pp::Var();
+ }
+ if (method_str == kJSAccessibility) {
+ if (args.size() == 0) {
+ base::DictionaryValue node;
+ node.SetInteger(kAccessibleNumberOfPages, engine_->GetNumberOfPages());
+ node.SetBoolean(kAccessibleLoaded,
+ document_load_state_ != LOAD_STATE_LOADING);
+ bool has_permissions =
+ engine_->HasPermission(PDFEngine::PERMISSION_COPY) ||
+ engine_->HasPermission(PDFEngine::PERMISSION_COPY_ACCESSIBLE);
+ node.SetBoolean(kAccessibleCopyable, has_permissions);
+ std::string json;
+ base::JSONWriter::Write(&node, &json);
+ return pp::Var(json);
+ } else if (args[0].is_number()) {
+ return pp::Var(engine_->GetPageAsJSON(args[0].AsInt()));
+ }
+ }
+ if (method_str == kJSPrintPreviewPageCount) {
+ if (args.size() == 1 && args[0].is_number())
+ SetPrintPreviewMode(args[0].AsInt());
+ return pp::Var();
+ }
+ if (method_str == kJSLoadPreviewPage) {
+ if (args.size() == 2 && args[0].is_string() && args[1].is_number())
+ ProcessPreviewPageInfo(args[0].AsString(), args[1].AsInt());
+ return pp::Var();
+ }
+ if (method_str == kJSGetPageLocationNormalized) {
+ const size_t kMaxLength = 30;
+ char location_info[kMaxLength];
+ int page_idx = engine_->GetMostVisiblePage();
+ if (page_idx < 0)
+ return pp::Var(std::string());
+ pp::Rect rect = engine_->GetPageContentsRect(page_idx);
+ int v_scrollbar_reserved_thickness =
+ v_scrollbar_.get() ? GetScaled(GetScrollbarReservedThickness()) : 0;
+
+ rect.set_x(rect.x() + ((plugin_size_.width() -
+ v_scrollbar_reserved_thickness - available_area_.width()) / 2));
+ base::snprintf(location_info,
+ kMaxLength,
+ "%0.4f;%0.4f;%0.4f;%0.4f;",
+ rect.x() / static_cast<float>(plugin_size_.width()),
+ rect.y() / static_cast<float>(plugin_size_.height()),
+ rect.width() / static_cast<float>(plugin_size_.width()),
+ rect.height()/ static_cast<float>(plugin_size_.height()));
+ return pp::Var(std::string(location_info));
+ }
+ if (method_str == kJSSetPageNumbers) {
+ if (args.size() != 1 || !args[0].is_string())
+ return pp::Var();
+ const int num_pages_signed = engine_->GetNumberOfPages();
+ if (num_pages_signed <= 0)
+ return pp::Var();
+ scoped_ptr<base::ListValue> page_ranges(static_cast<base::ListValue*>(
+ base::JSONReader::Read(args[0].AsString(), false)));
+ const size_t num_pages = static_cast<size_t>(num_pages_signed);
+ if (!page_ranges.get() || page_ranges->GetSize() != num_pages)
+ return pp::Var();
+
+ std::vector<int> print_preview_page_numbers;
+ for (size_t index = 0; index < num_pages; ++index) {
+ int page_number = 0; // |page_number| is 1-based.
+ if (!page_ranges->GetInteger(index, &page_number) || page_number < 1)
+ return pp::Var();
+ print_preview_page_numbers.push_back(page_number);
+ }
+ print_preview_page_numbers_ = print_preview_page_numbers;
+ page_indicator_.set_current_page(GetPageNumberToDisplay());
+ return pp::Var();
+ }
+ // This is here to work around https://bugs.webkit.org/show_bug.cgi?id=16735.
+ // In JS, creating a synthetic keyboard event and dispatching it always
+ // result in a keycode of 0.
+ if (method_str == kJSSendKeyEvent) {
+ if (args.size() == 1 && args[0].is_number()) {
+ pp::KeyboardInputEvent event(
+ this, // instance
+ PP_INPUTEVENT_TYPE_KEYDOWN, // HandleInputEvent only care about this.
+ 0, // timestamp, not used for kbd events.
+ 0, // no modifiers.
+ args[0].AsInt(), // keycode.
+ pp::Var()); // no char text needed.
+ HandleInputEvent(event);
+ }
+ }
+ return pp::Var();
+}
+
+void Instance::OnGeometryChanged(double old_zoom, float old_device_scale) {
+ bool force_no_horizontal_scrollbar = false;
+ int scrollbar_thickness = GetScrollbarThickness();
+
+ if (old_device_scale != device_scale_) {
+ // Change in device scale forces us to recreate resources
+ ConfigureNumberImageGenerator();
+
+ CreateToolbar(current_tb_info_, current_tb_info_size_);
+ // Load autoscroll anchor image.
+ autoscroll_anchor_ =
+ CreateResourceImage(PP_RESOURCEIMAGE_PDF_PAN_SCROLL_ICON);
+
+ ConfigurePageIndicator();
+ ConfigureProgressBar();
+
+ pp::Point scroll_position = engine_->GetScrollPosition();
+ ScalePoint(device_scale_ / old_device_scale, &scroll_position);
+ engine_->SetScrollPosition(scroll_position);
+ }
+
+ UpdateZoomScale();
+ if (zoom_ != old_zoom || device_scale_ != old_device_scale)
+ engine_->ZoomUpdated(zoom_ * device_scale_);
+ if (zoom_ != old_zoom)
+ ZoomChanged(zoom_);
+
+ available_area_ = pp::Rect(plugin_size_);
+ if (GetDocumentPixelHeight() > plugin_size_.height()) {
+ CreateVerticalScrollbar();
+ } else {
+ DestroyVerticalScrollbar();
+ }
+
+ int v_scrollbar_reserved_thickness =
+ v_scrollbar_.get() ? GetScaled(GetScrollbarReservedThickness()) : 0;
+
+ if (!force_no_horizontal_scrollbar &&
+ GetDocumentPixelWidth() >
+ (plugin_size_.width() - v_scrollbar_reserved_thickness)) {
+ CreateHorizontalScrollbar();
+
+ // Adding the horizontal scrollbar now might cause us to need vertical
+ // scrollbars.
+ if (GetDocumentPixelHeight() >
+ plugin_size_.height() - GetScaled(GetScrollbarReservedThickness())) {
+ CreateVerticalScrollbar();
+ }
+
+ } else {
+ DestroyHorizontalScrollbar();
+ }
+
+#ifdef ENABLE_THUMBNAILS
+ int thumbnails_pos = 0, thumbnails_total = 0;
+#endif
+ if (v_scrollbar_.get()) {
+ v_scrollbar_->SetScale(device_scale_);
+ available_area_.set_width(
+ std::max(0, plugin_size_.width() - v_scrollbar_reserved_thickness));
+
+#ifdef ENABLE_THUMBNAILS
+ int height = plugin_size_.height();
+#endif
+ int height_dip = plugin_dip_size_.height();
+
+#if defined(OS_MACOSX)
+ // Before Lion, Mac always had the resize at the bottom. After that, it
+ // never did.
+ if ((base::mac::IsOSSnowLeopard() && full_) ||
+ (base::mac::IsOSLionOrLater() && h_scrollbar_.get())) {
+#else
+ if (h_scrollbar_.get()) {
+#endif // defined(OS_MACOSX)
+#ifdef ENABLE_THUMBNAILS
+ height -= GetScaled(GetScrollbarThickness());
+#endif
+ height_dip -= GetScrollbarThickness();
+ }
+#ifdef ENABLE_THUMBNAILS
+ int32 doc_height = GetDocumentPixelHeight();
+#endif
+ int32 doc_height_dip =
+ static_cast<int32>(GetDocumentPixelHeight() / device_scale_);
+#if defined(OS_MACOSX)
+ // On the Mac we always allow room for the resize button (whose width is
+ // the same as that of the scrollbar) in full mode. However, if there is no
+ // no horizontal scrollbar, the end of the scrollbar will scroll past the
+ // end of the document. This is because the scrollbar assumes that its own
+ // height (in the case of a vscroll bar) is the same as the height of the
+ // viewport. Since the viewport is actually larger, we compensate by
+ // adjusting the document height. Similar logic applies below for the
+ // horizontal scrollbar.
+ // For example, if the document size is 1000, and the viewport size is 200,
+ // then the scrollbar position at the end will be 800. In this case the
+ // viewport is actally 215 (assuming 15 as the scrollbar width) but the
+ // scrollbar thinks it is 200. We want the scrollbar position at the end to
+ // be 785. Making the document size 985 achieves this.
+ if (full_ && !h_scrollbar_.get()) {
+#ifdef ENABLE_THUMBNAILS
+ doc_height -= GetScaled(GetScrollbarThickness());
+#endif
+ doc_height_dip -= GetScrollbarThickness();
+ }
+#endif // defined(OS_MACOSX)
+
+ int32 position;
+ position = v_scrollbar_->GetValue();
+ position = static_cast<int>(position * zoom_ / old_zoom);
+ valid_v_range_ = doc_height_dip - height_dip;
+ if (position > valid_v_range_)
+ position = valid_v_range_;
+
+ v_scrollbar_->SetValue(position);
+
+ PP_Rect loc;
+ loc.point.x = static_cast<int>(available_area_.right() / device_scale_);
+ if (IsOverlayScrollbar())
+ loc.point.x -= scrollbar_thickness;
+ loc.point.y = 0;
+ loc.size.width = scrollbar_thickness;
+ loc.size.height = height_dip;
+ v_scrollbar_->SetLocation(loc);
+ v_scrollbar_->SetDocumentSize(doc_height_dip);
+
+#ifdef ENABLE_THUMBNAILS
+ thumbnails_pos = position;
+ thumbnails_total = doc_height - height;
+#endif
+ }
+
+ if (h_scrollbar_.get()) {
+ h_scrollbar_->SetScale(device_scale_);
+ available_area_.set_height(
+ std::max(0, plugin_size_.height() -
+ GetScaled(GetScrollbarReservedThickness())));
+
+ int width_dip = plugin_dip_size_.width();
+
+ // See note above.
+#if defined(OS_MACOSX)
+ if ((base::mac::IsOSSnowLeopard() && full_) ||
+ (base::mac::IsOSLionOrLater() && v_scrollbar_.get())) {
+#else
+ if (v_scrollbar_.get()) {
+#endif
+ width_dip -= GetScrollbarThickness();
+ }
+ int32 doc_width_dip =
+ static_cast<int32>(GetDocumentPixelWidth() / device_scale_);
+#if defined(OS_MACOSX)
+ // See comment in the above if (v_scrollbar_.get()) block.
+ if (full_ && !v_scrollbar_.get())
+ doc_width_dip -= GetScrollbarThickness();
+#endif // defined(OS_MACOSX)
+
+ int32 position;
+ position = h_scrollbar_->GetValue();
+ position = static_cast<int>(position * zoom_ / old_zoom);
+ position = std::min(position, doc_width_dip - width_dip);
+
+ h_scrollbar_->SetValue(position);
+
+ PP_Rect loc;
+ loc.point.x = 0;
+ loc.point.y = static_cast<int>(available_area_.bottom() / device_scale_);
+ if (IsOverlayScrollbar())
+ loc.point.y -= scrollbar_thickness;
+ loc.size.width = width_dip;
+ loc.size.height = scrollbar_thickness;
+ h_scrollbar_->SetLocation(loc);
+ h_scrollbar_->SetDocumentSize(doc_width_dip);
+ }
+
+ int doc_width = GetDocumentPixelWidth();
+ if (doc_width < available_area_.width()) {
+ available_area_.Offset((available_area_.width() - doc_width) / 2, 0);
+ available_area_.set_width(doc_width);
+ }
+ int doc_height = GetDocumentPixelHeight();
+ if (doc_height < available_area_.height()) {
+ available_area_.set_height(doc_height);
+ }
+
+ // We'll invalidate the entire plugin anyways.
+ UpdateToolbarPosition(false);
+ UpdateProgressBarPosition(false);
+ UpdatePageIndicatorPosition(false);
+
+#ifdef ENABLE_THUMBNAILS
+ // Update thumbnail control position.
+ thumbnails_.SetPosition(thumbnails_pos, thumbnails_total, false);
+ pp::Rect thumbnails_rc(plugin_size_.width() - GetScaled(kThumbnailsWidth), 0,
+ GetScaled(kThumbnailsWidth), plugin_size_.height());
+ if (v_scrollbar_.get())
+ thumbnails_rc.Offset(-v_scrollbar_reserved_thickness, 0);
+ if (h_scrollbar_.get())
+ thumbnails_rc.Inset(0, 0, 0, v_scrollbar_reserved_thickness);
+ thumbnails_.SetRect(thumbnails_rc, false);
+#endif
+
+ CalculateBackgroundParts();
+ engine_->PageOffsetUpdated(available_area_.point());
+ engine_->PluginSizeUpdated(available_area_.size());
+
+ if (!document_size_.GetArea())
+ return;
+ paint_manager_.InvalidateRect(pp::Rect(pp::Point(), plugin_size_));
+
+ // Run the plugin size change callback asynchronously. This function can be
+ // invoked by a layout change which should not re-enter into JS synchronously.
+ pp::CompletionCallback callback =
+ callback_factory_.NewCallback(&Instance::RunCallback,
+ on_plugin_size_changed_callback_);
+ pp::Module::Get()->core()->CallOnMainThread(0, callback);
+}
+
+void Instance::RunCallback(int32_t, pp::Var callback) {
+ if (callback.is_string())
+ ExecuteScript(callback);
+}
+
+void Instance::CreateHorizontalScrollbar() {
+ if (h_scrollbar_.get())
+ return;
+
+ h_scrollbar_.reset(new pp::Scrollbar_Dev(this, false));
+}
+
+void Instance::CreateVerticalScrollbar() {
+ if (v_scrollbar_.get())
+ return;
+
+ v_scrollbar_.reset(new pp::Scrollbar_Dev(this, true));
+}
+
+void Instance::DestroyHorizontalScrollbar() {
+ if (!h_scrollbar_.get())
+ return;
+ if (h_scrollbar_->GetValue())
+ engine_->ScrolledToXPosition(0);
+ h_scrollbar_.reset();
+}
+
+void Instance::DestroyVerticalScrollbar() {
+ if (!v_scrollbar_.get())
+ return;
+ if (v_scrollbar_->GetValue())
+ engine_->ScrolledToYPosition(0);
+ v_scrollbar_.reset();
+ page_indicator_.Show(false, true);
+}
+
+int Instance::GetScrollbarThickness() {
+ if (scrollbar_thickness_ == -1) {
+ pp::Scrollbar_Dev temp_scrollbar(this, false);
+ scrollbar_thickness_ = temp_scrollbar.GetThickness();
+ scrollbar_reserved_thickness_ =
+ temp_scrollbar.IsOverlay() ? 0 : scrollbar_thickness_;
+ }
+
+ return scrollbar_thickness_;
+}
+
+int Instance::GetScrollbarReservedThickness() {
+ GetScrollbarThickness();
+ return scrollbar_reserved_thickness_;
+}
+
+bool Instance::IsOverlayScrollbar() {
+ return GetScrollbarReservedThickness() == 0;
+}
+
+void Instance::CreateToolbar(const ToolbarButtonInfo* tb_info, size_t size) {
+ toolbar_.reset(new FadingControls());
+
+ DCHECK(tb_info);
+ DCHECK(size >= 0);
+
+ // Remember the current toolbar information in case we need to recreate the
+ // images later.
+ current_tb_info_ = tb_info;
+ current_tb_info_size_ = size;
+
+ int max_height = 0;
+ pp::Point origin(kToolbarFadingOffsetLeft, kToolbarFadingOffsetTop);
+ ScalePoint(device_scale_, &origin);
+
+ std::list<Button*> buttons;
+ for (size_t i = 0; i < size; i++) {
+ Button* btn = new Button;
+ pp::ImageData normal_face =
+ CreateResourceImage(tb_info[i].normal);
+ btn->CreateButton(tb_info[i].id,
+ origin,
+ true,
+ toolbar_.get(),
+ tb_info[i].style,
+ normal_face,
+ CreateResourceImage(tb_info[i].highlighted),
+ CreateResourceImage(tb_info[i].pressed));
+ buttons.push_back(btn);
+
+ origin += pp::Point(normal_face.size().width(), 0);
+ max_height = std::max(max_height, normal_face.size().height());
+ }
+
+ pp::Rect rc_toolbar(0, 0,
+ origin.x() + GetToolbarRightOffset(),
+ origin.y() + max_height + GetToolbarBottomOffset());
+ toolbar_->CreateFadingControls(
+ kToolbarId, rc_toolbar, false, this, kTransparentAlpha);
+
+ std::list<Button*>::iterator iter;
+ for (iter = buttons.begin(); iter != buttons.end(); ++iter) {
+ toolbar_->AddControl(*iter);
+ }
+}
+
+int Instance::GetToolbarRightOffset() {
+ int scrollbar_thickness = GetScrollbarThickness();
+ return GetScaled(kToolbarFadingOffsetRight) + 2 * scrollbar_thickness;
+}
+
+int Instance::GetToolbarBottomOffset() {
+ int scrollbar_thickness = GetScrollbarThickness();
+ return GetScaled(kToolbarFadingOffsetBottom) + scrollbar_thickness;
+}
+
+std::vector<pp::ImageData> Instance::GetThumbnailResources() {
+ std::vector<pp::ImageData> num_images(10);
+ num_images[0] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_0);
+ num_images[1] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_1);
+ num_images[2] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_2);
+ num_images[3] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_3);
+ num_images[4] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_4);
+ num_images[5] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_5);
+ num_images[6] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_6);
+ num_images[7] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_7);
+ num_images[8] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_8);
+ num_images[9] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_9);
+ return num_images;
+}
+
+std::vector<pp::ImageData> Instance::GetProgressBarResources(
+ pp::ImageData* background) {
+ std::vector<pp::ImageData> result(9);
+ result[0] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_0);
+ result[1] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_1);
+ result[2] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_2);
+ result[3] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_3);
+ result[4] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_4);
+ result[5] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_5);
+ result[6] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_6);
+ result[7] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_7);
+ result[8] = CreateResourceImage(PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_8);
+ *background = CreateResourceImage(
+ PP_RESOURCEIMAGE_PDF_PROGRESS_BAR_BACKGROUND);
+ return result;
+}
+
+void Instance::CreatePageIndicator(bool always_visible) {
+ page_indicator_.CreatePageIndicator(kPageIndicatorId, false, this,
+ number_image_generator(), always_visible);
+ ConfigurePageIndicator();
+}
+
+void Instance::ConfigurePageIndicator() {
+ pp::ImageData background =
+ CreateResourceImage(PP_RESOURCEIMAGE_PDF_PAGE_INDICATOR_BACKGROUND);
+ page_indicator_.Configure(pp::Point(), background);
+}
+
+void Instance::CreateProgressBar() {
+ pp::ImageData background;
+ std::vector<pp::ImageData> images = GetProgressBarResources(&background);
+ std::string text = GetLocalizedString(PP_RESOURCESTRING_PDFPROGRESSLOADING);
+ progress_bar_.CreateProgressControl(kProgressBarId, false, this, 0.0,
+ device_scale_, images, background, text);
+}
+
+void Instance::ConfigureProgressBar() {
+ pp::ImageData background;
+ std::vector<pp::ImageData> images = GetProgressBarResources(&background);
+ progress_bar_.Reconfigure(background, images, device_scale_);
+}
+
+void Instance::CreateThumbnails() {
+ thumbnails_.CreateThumbnailControl(
+ kThumbnailsId, pp::Rect(), false, this, engine_.get(),
+ number_image_generator());
+}
+
+void Instance::LoadUrl(const std::string& url) {
+ LoadUrlInternal(url, &embed_loader_, &Instance::DidOpen);
+}
+
+void Instance::LoadPreviewUrl(const std::string& url) {
+ LoadUrlInternal(url, &embed_preview_loader_, &Instance::DidOpenPreview);
+}
+
+void Instance::LoadUrlInternal(const std::string& url, pp::URLLoader* loader,
+ void (Instance::* method)(int32_t)) {
+ pp::URLRequestInfo request(this);
+ request.SetURL(url);
+ request.SetMethod("GET");
+
+ *loader = CreateURLLoaderInternal();
+ pp::CompletionCallback callback = loader_factory_.NewCallback(method);
+ int rv = loader->Open(request, callback);
+ if (rv != PP_OK_COMPLETIONPENDING)
+ callback.Run(rv);
+}
+
+pp::URLLoader Instance::CreateURLLoaderInternal() {
+ pp::URLLoader loader(this);
+
+ const PPB_URLLoaderTrusted* trusted_interface =
+ reinterpret_cast<const PPB_URLLoaderTrusted*>(
+ pp::Module::Get()->GetBrowserInterface(
+ PPB_URLLOADERTRUSTED_INTERFACE));
+ if (trusted_interface)
+ trusted_interface->GrantUniversalAccess(loader.pp_resource());
+ return loader;
+}
+
+int Instance::GetInitialPage(const std::string& url) {
+ size_t found_idx = url.find('#');
+ if (found_idx == std::string::npos)
+ return -1;
+
+ const std::string& ref = url.substr(found_idx + 1);
+ std::vector<std::string> fragments;
+ Tokenize(ref, kDelimiters, &fragments);
+
+ // Page number to return, zero-based.
+ int page = -1;
+
+ // Handle the case of http://foo.com/bar#NAMEDDEST. This is not explicitly
+ // mentioned except by example in the Adobe "PDF Open Parameters" document.
+ if ((fragments.size() == 1) && (fragments[0].find('=') == std::string::npos))
+ return engine_->GetNamedDestinationPage(fragments[0]);
+
+ for (size_t i = 0; i < fragments.size(); ++i) {
+ std::vector<std::string> key_value;
+ base::SplitString(fragments[i], '=', &key_value);
+ if (key_value.size() != 2)
+ continue;
+ const std::string& key = key_value[0];
+ const std::string& value = key_value[1];
+
+ if (base::strcasecmp(kPage, key.c_str()) == 0) {
+ // |page_value| is 1-based.
+ int page_value = -1;
+ if (base::StringToInt(value, &page_value) && page_value > 0)
+ page = page_value - 1;
+ continue;
+ }
+ if (base::strcasecmp(kNamedDest, key.c_str()) == 0) {
+ // |page_value| is 0-based.
+ int page_value = engine_->GetNamedDestinationPage(value);
+ if (page_value >= 0)
+ page = page_value;
+ continue;
+ }
+ }
+ return page;
+}
+
+void Instance::UpdateToolbarPosition(bool invalidate) {
+ pp::Rect ctrl_rc = toolbar_->GetControlsRect();
+ int min_toolbar_width = ctrl_rc.width() + GetToolbarRightOffset() +
+ GetScaled(kToolbarFadingOffsetLeft);
+ int min_toolbar_height = ctrl_rc.width() + GetToolbarBottomOffset() +
+ GetScaled(kToolbarFadingOffsetBottom);
+
+ // Update toolbar position
+ if (plugin_size_.width() < min_toolbar_width ||
+ plugin_size_.height() < min_toolbar_height) {
+ // Disable toolbar if it does not fit on the screen.
+ toolbar_->Show(false, invalidate);
+ } else {
+ pp::Point offset(
+ plugin_size_.width() - GetToolbarRightOffset() - ctrl_rc.right(),
+ plugin_size_.height() - GetToolbarBottomOffset() - ctrl_rc.bottom());
+ toolbar_->MoveBy(offset, invalidate);
+
+ int toolbar_width = std::max(plugin_size_.width() / 2, min_toolbar_width);
+ toolbar_->ExpandLeft(toolbar_width - toolbar_->rect().width());
+ toolbar_->Show(painted_first_page_, invalidate);
+ }
+}
+
+void Instance::UpdateProgressBarPosition(bool invalidate) {
+ // TODO(gene): verify we don't overlap with toolbar.
+ int scrollbar_thickness = GetScrollbarThickness();
+ pp::Point progress_origin(
+ scrollbar_thickness + GetScaled(kProgressOffsetLeft),
+ plugin_size_.height() - progress_bar_.rect().height() -
+ scrollbar_thickness - GetScaled(kProgressOffsetBottom));
+ progress_bar_.MoveTo(progress_origin, invalidate);
+}
+
+void Instance::UpdatePageIndicatorPosition(bool invalidate) {
+ int32 doc_height = static_cast<int>(document_size_.height() * zoom_);
+ pp::Point origin(
+ plugin_size_.width() - page_indicator_.rect().width() -
+ GetScaled(GetScrollbarReservedThickness()),
+ page_indicator_.GetYPosition(engine_->GetVerticalScrollbarYPosition(),
+ doc_height, plugin_size_.height()));
+ page_indicator_.MoveTo(origin, invalidate);
+}
+
+void Instance::SetZoom(ZoomMode zoom_mode, double scale) {
+ double old_zoom = zoom_;
+
+ zoom_mode_ = zoom_mode;
+ if (zoom_mode_ == ZOOM_SCALE)
+ zoom_ = scale;
+ UpdateZoomScale();
+
+ engine_->ZoomUpdated(zoom_ * device_scale_);
+ OnGeometryChanged(old_zoom, device_scale_);
+
+ // If fit-to-height, snap to the beginning of the most visible page.
+ if (zoom_mode_ == ZOOM_FIT_TO_PAGE) {
+ ScrollToPage(engine_->GetMostVisiblePage());
+ }
+
+ // Update sticky buttons to the current zoom style.
+ Button* ftp_btn = static_cast<Button*>(
+ toolbar_->GetControl(kFitToPageButtonId));
+ Button* ftw_btn = static_cast<Button*>(
+ toolbar_->GetControl(kFitToWidthButtonId));
+ switch (zoom_mode_) {
+ case ZOOM_FIT_TO_PAGE:
+ ftp_btn->SetPressedState(true);
+ ftw_btn->SetPressedState(false);
+ break;
+ case ZOOM_FIT_TO_WIDTH:
+ ftw_btn->SetPressedState(true);
+ ftp_btn->SetPressedState(false);
+ break;
+ default:
+ ftw_btn->SetPressedState(false);
+ ftp_btn->SetPressedState(false);
+ }
+}
+
+void Instance::UpdateZoomScale() {
+ switch (zoom_mode_) {
+ case ZOOM_SCALE:
+ break; // Keep current scale.
+ case ZOOM_FIT_TO_PAGE: {
+ int page_num = engine_->GetFirstVisiblePage();
+ if (page_num == -1)
+ break;
+ pp::Rect rc = engine_->GetPageRect(page_num);
+ if (!rc.height())
+ break;
+ // Calculate fit to width zoom level.
+ double ftw_zoom = static_cast<double>(plugin_dip_size_.width() -
+ GetScrollbarReservedThickness()) / document_size_.width();
+ // Calculate fit to height zoom level. If document will not fit
+ // horizontally, adjust zoom level to allow space for horizontal
+ // scrollbar.
+ double fth_zoom =
+ static_cast<double>(plugin_dip_size_.height()) / rc.height();
+ if (fth_zoom * document_size_.width() >
+ plugin_dip_size_.width() - GetScrollbarReservedThickness())
+ fth_zoom = static_cast<double>(plugin_dip_size_.height()
+ - GetScrollbarReservedThickness()) / rc.height();
+ zoom_ = std::min(ftw_zoom, fth_zoom);
+ } break;
+ case ZOOM_FIT_TO_WIDTH:
+ case ZOOM_AUTO:
+ if (!document_size_.width())
+ break;
+ zoom_ = static_cast<double>(plugin_dip_size_.width() -
+ GetScrollbarReservedThickness()) / document_size_.width();
+ if (zoom_mode_ == ZOOM_AUTO && zoom_ > 1.0)
+ zoom_ = 1.0;
+ break;
+ }
+ zoom_ = ClipToRange(zoom_, kMinZoom, kMaxZoom);
+}
+
+double Instance::CalculateZoom(uint32 control_id) const {
+ if (control_id == kZoomInButtonId) {
+ for (size_t i = 0; i < chrome_page_zoom::kPresetZoomFactorsSize; ++i) {
+ double current_zoom = chrome_page_zoom::kPresetZoomFactors[i];
+ if (current_zoom - content::kEpsilon > zoom_)
+ return current_zoom;
+ }
+ } else {
+ for (size_t i = chrome_page_zoom::kPresetZoomFactorsSize; i > 0; --i) {
+ double current_zoom = chrome_page_zoom::kPresetZoomFactors[i - 1];
+ if (current_zoom + content::kEpsilon < zoom_)
+ return current_zoom;
+ }
+ }
+ return zoom_;
+}
+
+pp::ImageData Instance::CreateResourceImage(PP_ResourceImage image_id) {
+ pp::ImageData resource_data;
+ if (hidpi_enabled_) {
+ resource_data =
+ pp::PDF::GetResourceImageForScale(this, image_id, device_scale_);
+ }
+
+ return resource_data.data() ? resource_data
+ : pp::PDF::GetResourceImage(this, image_id);
+}
+
+std::string Instance::GetLocalizedString(PP_ResourceString id) {
+ pp::Var rv(pp::PDF::GetLocalizedString(this, id));
+ if (!rv.is_string())
+ return std::string();
+
+ return rv.AsString();
+}
+
+void Instance::DrawText(const pp::Point& top_center, PP_ResourceString id) {
+ std::string str(GetLocalizedString(id));
+
+ pp::FontDescription_Dev description;
+ description.set_family(PP_FONTFAMILY_SANSSERIF);
+ description.set_size(kMessageTextSize * device_scale_);
+ pp::Font_Dev font(this, description);
+ int length = font.MeasureSimpleText(str);
+ pp::Point point(top_center);
+ point.set_x(point.x() - length / 2);
+ DCHECK(!image_data_.is_null());
+ font.DrawSimpleText(&image_data_, str, point, kMessageTextColor);
+}
+
+void Instance::SetPrintPreviewMode(int page_count) {
+ if (!IsPrintPreview() || page_count <= 0) {
+ print_preview_page_count_ = 0;
+ return;
+ }
+
+ print_preview_page_count_ = page_count;
+ ScrollToPage(0);
+ engine_->AppendBlankPages(print_preview_page_count_);
+ if (preview_pages_info_.size() > 0)
+ LoadAvailablePreviewPage();
+}
+
+bool Instance::IsPrintPreview() {
+ return IsPrintPreviewUrl(url_);
+}
+
+int Instance::GetPageNumberToDisplay() {
+ int page = engine_->GetMostVisiblePage();
+ if (IsPrintPreview() && !print_preview_page_numbers_.empty()) {
+ page = ClipToRange<int>(page, 0, print_preview_page_numbers_.size() - 1);
+ return print_preview_page_numbers_[page];
+ }
+ return page + 1;
+}
+
+void Instance::ProcessPreviewPageInfo(const std::string& url,
+ int dst_page_index) {
+ if (!IsPrintPreview() || print_preview_page_count_ < 0)
+ return;
+
+ int src_page_index = ExtractPrintPreviewPageIndex(url);
+ if (src_page_index < 1)
+ return;
+
+ preview_pages_info_.push(std::make_pair(url, dst_page_index));
+ LoadAvailablePreviewPage();
+}
+
+void Instance::LoadAvailablePreviewPage() {
+ if (preview_pages_info_.size() <= 0)
+ return;
+
+ std::string url = preview_pages_info_.front().first;
+ int dst_page_index = preview_pages_info_.front().second;
+ int src_page_index = ExtractPrintPreviewPageIndex(url);
+ if (src_page_index < 1 ||
+ dst_page_index >= print_preview_page_count_ ||
+ preview_document_load_state_ == LOAD_STATE_LOADING) {
+ return;
+ }
+
+ preview_document_load_state_ = LOAD_STATE_LOADING;
+ LoadPreviewUrl(url);
+}
+
+void Instance::EnableAutoscroll(const pp::Point& origin) {
+ if (is_autoscroll_)
+ return;
+
+ pp::Size client_size = plugin_size_;
+ if (v_scrollbar_.get())
+ client_size.Enlarge(-GetScrollbarThickness(), 0);
+ if (h_scrollbar_.get())
+ client_size.Enlarge(0, -GetScrollbarThickness());
+
+ // Do not allow autoscroll if client area is too small.
+ if (autoscroll_anchor_.size().width() > client_size.width() ||
+ autoscroll_anchor_.size().height() > client_size.height())
+ return;
+
+ autoscroll_rect_ = pp::Rect(
+ pp::Point(origin.x() - autoscroll_anchor_.size().width() / 2,
+ origin.y() - autoscroll_anchor_.size().height() / 2),
+ autoscroll_anchor_.size());
+
+ // Make sure autoscroll anchor is in the client area.
+ if (autoscroll_rect_.right() > client_size.width()) {
+ autoscroll_rect_.set_x(
+ client_size.width() - autoscroll_anchor_.size().width());
+ }
+ if (autoscroll_rect_.bottom() > client_size.height()) {
+ autoscroll_rect_.set_y(
+ client_size.height() - autoscroll_anchor_.size().height());
+ }
+
+ if (autoscroll_rect_.x() < 0)
+ autoscroll_rect_.set_x(0);
+ if (autoscroll_rect_.y() < 0)
+ autoscroll_rect_.set_y(0);
+
+ is_autoscroll_ = true;
+ Invalidate(kAutoScrollId, autoscroll_rect_);
+
+ ScheduleTimer(kAutoScrollId, kAutoScrollTimeoutMs);
+}
+
+void Instance::DisableAutoscroll() {
+ if (is_autoscroll_) {
+ is_autoscroll_ = false;
+ Invalidate(kAutoScrollId, autoscroll_rect_);
+ }
+}
+
+PP_CursorType_Dev Instance::CalculateAutoscroll(const pp::Point& mouse_pos) {
+ // Scroll only if mouse pointer is outside of the anchor area.
+ if (autoscroll_rect_.Contains(mouse_pos)) {
+ autoscroll_x_ = 0;
+ autoscroll_y_ = 0;
+ return PP_CURSORTYPE_MIDDLEPANNING;
+ }
+
+ // Relative position to the center of anchor area.
+ pp::Point rel_pos = mouse_pos - autoscroll_rect_.CenterPoint();
+
+ // Calculate angle from the X axis. Angle is in range from -pi to pi.
+ double angle = atan2(static_cast<double>(rel_pos.y()),
+ static_cast<double>(rel_pos.x()));
+
+ autoscroll_x_ = rel_pos.x() * kAutoScrollFactor;
+ autoscroll_y_ = rel_pos.y() * kAutoScrollFactor;
+
+ // Angle is from -pi to pi. Screen Y is increasing toward bottom,
+ // so negative angle represent north direction.
+ if (angle < - (M_PI * 7.0 / 8.0)) {
+ // going west
+ return PP_CURSORTYPE_WESTPANNING;
+ } else if (angle < - (M_PI * 5.0 / 8.0)) {
+ // going north-west
+ return PP_CURSORTYPE_NORTHWESTPANNING;
+ } else if (angle < - (M_PI * 3.0 / 8.0)) {
+ // going north.
+ return PP_CURSORTYPE_NORTHPANNING;
+ } else if (angle < - (M_PI * 1.0 / 8.0)) {
+ // going north-east
+ return PP_CURSORTYPE_NORTHEASTPANNING;
+ } else if (angle < M_PI * 1.0 / 8.0) {
+ // going east.
+ return PP_CURSORTYPE_EASTPANNING;
+ } else if (angle < M_PI * 3.0 / 8.0) {
+ // going south-east
+ return PP_CURSORTYPE_SOUTHEASTPANNING;
+ } else if (angle < M_PI * 5.0 / 8.0) {
+ // going south.
+ return PP_CURSORTYPE_SOUTHPANNING;
+ } else if (angle < M_PI * 7.0 / 8.0) {
+ // going south-west
+ return PP_CURSORTYPE_SOUTHWESTPANNING;
+ }
+
+ // went around the circle, going west again
+ return PP_CURSORTYPE_WESTPANNING;
+}
+
+void Instance::ConfigureNumberImageGenerator() {
+ std::vector<pp::ImageData> num_images = GetThumbnailResources();
+ pp::ImageData number_background = CreateResourceImage(
+ PP_RESOURCEIMAGE_PDF_BUTTON_THUMBNAIL_NUM_BACKGROUND);
+ number_image_generator_->Configure(number_background,
+ num_images,
+ device_scale_);
+}
+
+NumberImageGenerator* Instance::number_image_generator() {
+ if (!number_image_generator_.get()) {
+ number_image_generator_.reset(new NumberImageGenerator(this));
+ ConfigureNumberImageGenerator();
+ }
+ return number_image_generator_.get();
+}
+
+int Instance::GetScaled(int x) const {
+ return static_cast<int>(x * device_scale_);
+}
+
+void Instance::UserMetricsRecordAction(const std::string& action) {
+ pp::PDF::UserMetricsRecordAction(this, pp::Var(action));
+}
+
+PDFScriptableObject::PDFScriptableObject(Instance* instance)
+ : instance_(instance) {
+}
+
+PDFScriptableObject::~PDFScriptableObject() {
+}
+
+bool PDFScriptableObject::HasMethod(const pp::Var& name, pp::Var* exception) {
+ return instance_->HasScriptableMethod(name, exception);
+}
+
+pp::Var PDFScriptableObject::Call(const pp::Var& method,
+ const std::vector<pp::Var>& args,
+ pp::Var* exception) {
+ return instance_->CallScriptableMethod(method, args, exception);
+}
+
+} // namespace chrome_pdf