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Unified Diff: pdf/instance.cc

Issue 1125103002: Remove the in-process PDF viewer from pdf/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@remove-in-process-instance
Patch Set: Created 5 years, 7 months ago
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Index: pdf/instance.cc
diff --git a/pdf/instance.cc b/pdf/instance.cc
deleted file mode 100644
index f32129163c8a78695f878a3c2826c0714b96ec1b..0000000000000000000000000000000000000000
--- a/pdf/instance.cc
+++ /dev/null
@@ -1,2833 +0,0 @@
-// 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/common/content_restriction.h"
-#include "components/ui/zoom/page_zoom_constants.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;
-};
-
-const uint32 kBackgroundColor = 0xFFCCCCCC;
-
-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;
- }
- }
-}
-
-PP_Bool GetPrintPresetOptionsFromDocument(
- PP_Instance instance,
- PP_PdfPrintPresetOptions_Dev* options) {
- void* object = pp::Instance::GetPerInstanceObject(instance, kPPPPdfInterface);
- if (object) {
- Instance* obj_instance = static_cast<Instance*>(object);
- obj_instance->GetPrintPresetOptionsFromDocument(options);
- }
- return PP_TRUE;
-}
-
-const PPP_Pdf ppp_private = {
- &GetLinkAtPosition,
- &Transform,
- &GetPrintPresetOptionsFromDocument
-};
-
-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 (!IsMouseOnScrollbar(event_device_res) &&
- 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() && IsMouseOnScrollbar(event)) {
- 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 has_modifiers = keyboard_event.GetModifiers() != 0;
- bool page_down =
- no_h_scrollbar && !has_modifiers && key_code == ui::VKEY_RIGHT;
- bool page_up =
- no_h_scrollbar && !has_modifiers && 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;
- }
- }
- 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_;
-}
-
-void Instance::GetPrintPresetOptionsFromDocument(
- PP_PdfPrintPresetOptions_Dev* options) {
- options->is_scaling_disabled = PP_FromBool(IsPrintScalingDisabled());
- options->duplex =
- static_cast<PP_PrivateDuplexMode_Dev>(engine_->GetDuplexType());
- options->copies = engine_->GetCopiesToPrint();
- pp::Size uniform_page_size;
- options->is_page_size_uniform =
- PP_FromBool(engine_->GetPageSizeAndUniformity(&uniform_page_size));
- options->uniform_page_size = PP_Size(uniform_page_size);
-}
-
-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)
- 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] == '#') {
- // if '#' is already present in |url_| then remove old fragment and add
- // new |url_copy| fragment.
- std::size_t index = url_.find('#');
- if (index != std::string::npos)
- url_copy = url_.substr(0, index) + url_copy;
- else
- 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) {
- DCHECK_GE(current_find_index, 0);
- 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();
-}
-
-bool Instance::IsMouseOnScrollbar(const pp::InputEvent& event) {
- pp::MouseInputEvent mouse_event(event);
- if (mouse_event.is_null())
- return false;
-
- pp::Point pt = mouse_event.GetPosition();
- pp::Rect temp;
- if ((v_scrollbar_.get() && v_scrollbar_->GetLocation(&temp) &&
- temp.Contains(pt)) ||
- (h_scrollbar_.get() && h_scrollbar_->GetLocation(&temp) &&
- temp.Contains(pt))) {
- return true;
- }
- return false;
-}
-
-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) {
- std::string selected_text = engine_->GetSelectedText();
- // Always return unix newlines to JS.
- base::ReplaceChars(selected_text, "\r", std::string(), &selected_text);
- return selected_text;
- }
- 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 < ui_zoom::kPresetZoomFactorsSize; ++i) {
- double current_zoom = ui_zoom::kPresetZoomFactors[i];
- if (current_zoom - content::kEpsilon > zoom_)
- return current_zoom;
- }
- } else {
- for (size_t i = ui_zoom::kPresetZoomFactorsSize; i > 0; --i) {
- double current_zoom = ui_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_);
-}
-
-uint32 Instance::GetBackgroundColor() {
- return kBackgroundColor;
-}
-
-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
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