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Side by Side Diff: pdf/pdfium/pdfium_engine.cc

Issue 865533002: Scroll while selecting Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 11 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "pdf/pdfium/pdfium_engine.h" 5 #include "pdf/pdfium/pdfium_engine.h"
6 6
7 #include <math.h> 7 #include <math.h>
8 8
9 #include "base/json/json_writer.h" 9 #include "base/json/json_writer.h"
10 #include "base/logging.h" 10 #include "base/logging.h"
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1676 OnSingleClick(page_index, char_index); 1676 OnSingleClick(page_index, char_index);
1677 } else if (event.GetClickCount() == 2 || 1677 } else if (event.GetClickCount() == 2 ||
1678 event.GetClickCount() == 3) { 1678 event.GetClickCount() == 3) {
1679 OnMultipleClick(event.GetClickCount(), page_index, char_index); 1679 OnMultipleClick(event.GetClickCount(), page_index, char_index);
1680 } 1680 }
1681 1681
1682 return true; 1682 return true;
1683 } 1683 }
1684 1684
1685 void PDFiumEngine::OnSingleClick(int page_index, int char_index) { 1685 void PDFiumEngine::OnSingleClick(int page_index, int char_index) {
1686 selecting_ = true; 1686 SetSelecting(true);
1687 selection_.push_back(PDFiumRange(pages_[page_index], char_index, 0)); 1687 selection_.push_back(PDFiumRange(pages_[page_index], char_index, 0));
1688 } 1688 }
1689 1689
1690 void PDFiumEngine::OnMultipleClick(int click_count, 1690 void PDFiumEngine::OnMultipleClick(int click_count,
1691 int page_index, 1691 int page_index,
1692 int char_index) { 1692 int char_index) {
1693 // It would be more efficient if the SDK could support finding a space, but 1693 // It would be more efficient if the SDK could support finding a space, but
1694 // now it doesn't. 1694 // now it doesn't.
1695 int start_index = char_index; 1695 int start_index = char_index;
1696 do { 1696 do {
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1739 double page_x, page_y; 1739 double page_x, page_y;
1740 pp::Point point = event.GetPosition(); 1740 pp::Point point = event.GetPosition();
1741 DeviceToPage(page_index, point.x(), point.y(), &page_x, &page_y); 1741 DeviceToPage(page_index, point.x(), point.y(), &page_x, &page_y);
1742 FORM_OnLButtonUp( 1742 FORM_OnLButtonUp(
1743 form_, pages_[page_index]->GetPage(), 0, page_x, page_y); 1743 form_, pages_[page_index]->GetPage(), 0, page_x, page_y);
1744 } 1744 }
1745 1745
1746 if (!selecting_) 1746 if (!selecting_)
1747 return false; 1747 return false;
1748 1748
1749 selecting_ = false; 1749 SetSelecting(false);
1750 return true; 1750 return true;
1751 } 1751 }
1752 1752
1753 bool PDFiumEngine::OnMouseMove(const pp::MouseInputEvent& event) { 1753 bool PDFiumEngine::OnMouseMove(const pp::MouseInputEvent& event) {
1754 int page_index = -1; 1754 int page_index = -1;
1755 int char_index = -1; 1755 int char_index = -1;
1756 PDFiumPage::LinkTarget target; 1756 PDFiumPage::LinkTarget target;
1757 PDFiumPage::Area area = 1757 PDFiumPage::Area area =
1758 GetCharIndex(event, &page_index, &char_index, &target); 1758 GetCharIndex(event, &page_index, &char_index, &target);
1759 1759
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3361 3361
3362 InvalidateAllPages(); 3362 InvalidateAllPages();
3363 3363
3364 if (!current_find_text.empty()) { 3364 if (!current_find_text.empty()) {
3365 // Clear the UI. 3365 // Clear the UI.
3366 client_->NotifyNumberOfFindResultsChanged(0, false); 3366 client_->NotifyNumberOfFindResultsChanged(0, false);
3367 StartFind(current_find_text.c_str(), false); 3367 StartFind(current_find_text.c_str(), false);
3368 } 3368 }
3369 } 3369 }
3370 3370
3371 void PDFiumEngine::SetSelecting(bool selecting) {
3372 bool was_selecting = selecting_;
3373 selecting_ = selecting;
3374 if (selecting_ != was_selecting)
3375 engine->client_->IsSelectingChanged(selecting);
3376 }
3377
3371 void PDFiumEngine::Form_Invalidate(FPDF_FORMFILLINFO* param, 3378 void PDFiumEngine::Form_Invalidate(FPDF_FORMFILLINFO* param,
3372 FPDF_PAGE page, 3379 FPDF_PAGE page,
3373 double left, 3380 double left,
3374 double top, 3381 double top,
3375 double right, 3382 double right,
3376 double bottom) { 3383 double bottom) {
3377 PDFiumEngine* engine = static_cast<PDFiumEngine*>(param); 3384 PDFiumEngine* engine = static_cast<PDFiumEngine*>(param);
3378 int page_index = engine->GetVisiblePageIndex(page); 3385 int page_index = engine->GetVisiblePageIndex(page);
3379 if (page_index == -1) { 3386 if (page_index == -1) {
3380 // This can sometime happen when the page is closed because it went off 3387 // This can sometime happen when the page is closed because it went off
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3916 double* height) { 3923 double* height) {
3917 FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, NULL); 3924 FPDF_DOCUMENT doc = FPDF_LoadMemDocument(pdf_buffer, pdf_buffer_size, NULL);
3918 if (!doc) 3925 if (!doc)
3919 return false; 3926 return false;
3920 bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0; 3927 bool success = FPDF_GetPageSizeByIndex(doc, page_number, width, height) != 0;
3921 FPDF_CloseDocument(doc); 3928 FPDF_CloseDocument(doc);
3922 return success; 3929 return success;
3923 } 3930 }
3924 3931
3925 } // namespace chrome_pdf 3932 } // namespace chrome_pdf
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