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Moves viewer code into PDFViewer and some code from PageView.

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This commit is contained in:
Yury Delendik 2014-09-12 21:27:45 -05:00
parent 3bce14761a
commit 7af8748151
6 changed files with 502 additions and 345 deletions
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88
web/page_view.js
View File

@ -14,15 +14,15 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* globals RenderingStates, PDFView, PDFHistory, PDFJS, mozL10n, CustomStyle,
/* globals RenderingStates, PDFView, PDFJS, mozL10n, CustomStyle,
PresentationMode, scrollIntoView, SCROLLBAR_PADDING, CSS_UNITS,
UNKNOWN_SCALE, DEFAULT_SCALE, getOutputScale, TextLayerBuilder,
cache, Stats */
Stats */
'use strict';
var PageView = function pageView(container, id, scale,
navigateTo, defaultViewport) {
var PageView = function pageView(container, id, scale, defaultViewport,
linkService, renderingQueue, cache, viewer) {
this.id = id;
this.rotation = 0;
@ -31,6 +31,11 @@ var PageView = function pageView(container, id, scale,
this.pdfPageRotate = defaultViewport.rotation;
this.hasRestrictedScaling = false;
this.linkService = linkService;
this.renderingQueue = renderingQueue;
this.cache = cache;
this.viewer = viewer;
this.renderingState = RenderingStates.INITIAL;
this.resume = null;
@ -241,10 +246,10 @@ var PageView = function pageView(container, id, scale,
function setupAnnotations(pageDiv, pdfPage, viewport) {
function bindLink(link, dest) {
link.href = PDFView.getDestinationHash(dest);
link.href = linkService.getDestinationHash(dest);
link.onclick = function pageViewSetupLinksOnclick() {
if (dest) {
PDFView.navigateTo(dest);
linkService.navigateTo(dest);
}
return false;
};
@ -254,47 +259,9 @@ var PageView = function pageView(container, id, scale,
}
function bindNamedAction(link, action) {
link.href = PDFView.getAnchorUrl('');
link.href = linkService.getAnchorUrl('');
link.onclick = function pageViewSetupNamedActionOnClick() {
// See PDF reference, table 8.45 - Named action
switch (action) {
case 'GoToPage':
document.getElementById('pageNumber').focus();
break;
case 'GoBack':
PDFHistory.back();
break;
case 'GoForward':
PDFHistory.forward();
break;
case 'Find':
if (!PDFView.supportsIntegratedFind) {
PDFView.findBar.toggle();
}
break;
case 'NextPage':
PDFView.page++;
break;
case 'PrevPage':
PDFView.page--;
break;
case 'LastPage':
PDFView.page = PDFView.pages.length;
break;
case 'FirstPage':
PDFView.page = 1;
break;
default:
break; // No action according to spec
}
linkService.executeNamedAction(action);
return false;
};
link.className = 'internalLink';
@ -377,13 +344,13 @@ var PageView = function pageView(container, id, scale,
this.scrollIntoView = function pageViewScrollIntoView(dest) {
if (PresentationMode.active) {
if (PDFView.page !== this.id) {
// Avoid breaking PDFView.getVisiblePages in presentation mode.
PDFView.page = this.id;
if (this.linkService.page !== this.id) {
// Avoid breaking getVisiblePages in presentation mode.
this.linkService.page = this.id;
return;
}
dest = null;
PDFView.setScale(PDFView.currentScaleValue, true, true);
this.viewer.setScale(this.viewer.currentScaleValue, true, true);
}
if (!dest) {
scrollIntoView(div);
@ -431,9 +398,10 @@ var PageView = function pageView(container, id, scale,
y = dest[3];
width = dest[4] - x;
height = dest[5] - y;
widthScale = (PDFView.container.clientWidth - SCROLLBAR_PADDING) /
var viewerContainer = this.viewer.container;
widthScale = (viewerContainer.clientWidth - SCROLLBAR_PADDING) /
width / CSS_UNITS;
heightScale = (PDFView.container.clientHeight - SCROLLBAR_PADDING) /
heightScale = (viewerContainer.clientHeight - SCROLLBAR_PADDING) /
height / CSS_UNITS;
scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
break;
@ -441,10 +409,10 @@ var PageView = function pageView(container, id, scale,
return;
}
if (scale && scale !== PDFView.currentScale) {
PDFView.setScale(scale, true, true);
} else if (PDFView.currentScale === UNKNOWN_SCALE) {
PDFView.setScale(DEFAULT_SCALE, true, true);
if (scale && scale !== this.viewer.currentScale) {
this.viewer.setScale(scale, true, true);
} else if (this.viewer.currentScale === UNKNOWN_SCALE) {
this.viewer.setScale(DEFAULT_SCALE, true, true);
}
if (scale === 'page-fit' && !dest[4]) {
@ -463,7 +431,7 @@ var PageView = function pageView(container, id, scale,
};
this.getTextContent = function pageviewGetTextContent() {
return PDFView.getPage(this.id).then(function(pdfPage) {
return this.renderingQueue.getPage(this.id).then(function(pdfPage) {
return pdfPage.getTextContent();
});
};
@ -475,7 +443,7 @@ var PageView = function pageView(container, id, scale,
return;
}
if (!pdfPage) {
var promise = PDFView.getPage(this.id);
var promise = this.renderingQueue.getPage(this.id);
promise.then(function(pdfPage) {
delete this.pagePdfPromise;
this.setPdfPage(pdfPage);
@ -559,7 +527,7 @@ var PageView = function pageView(container, id, scale,
textLayerDiv ? new TextLayerBuilder({
textLayerDiv: textLayerDiv,
pageIndex: this.id - 1,
lastScrollSource: PDFView,
lastScrollSource: this.linkService,
viewport: this.viewport,
isViewerInPresentationMode: PresentationMode.active,
findController: PDFView.findController
@ -646,7 +614,7 @@ var PageView = function pageView(container, id, scale,
viewport: this.viewport,
// intent: 'default', // === 'display'
continueCallback: function pdfViewcContinueCallback(cont) {
if (PDFView.highestPriorityPage !== 'page' + self.id) {
if (self.renderingQueue.highestPriorityPage !== 'page' + self.id) {
self.renderingState = RenderingStates.PAUSED;
self.resume = function resumeCallback() {
self.renderingState = RenderingStates.RUNNING;

10
web/pdf_find_controller.js
View File

@ -137,7 +137,7 @@ var PDFFindController = (function PDFFindControllerClosure() {
this.pageContents = [];
var extractTextPromisesResolves = [];
var numPages = this.pdfPageSource.pdfDocument.numPages;
var numPages = this.pdfPageSource.pagesCount;
for (var i = 0; i < numPages; i++) {
this.extractTextPromises.push(new Promise(function (resolve) {
extractTextPromisesResolves.push(resolve);
@ -146,7 +146,7 @@ var PDFFindController = (function PDFFindControllerClosure() {
var self = this;
function extractPageText(pageIndex) {
self.pdfPageSource.pages[pageIndex].getTextContent().then(
self.pdfPageSource.getPageView(pageIndex).getTextContent().then(
function textContentResolved(textContent) {
var textItems = textContent.items;
var str = [];
@ -159,7 +159,7 @@ var PDFFindController = (function PDFFindControllerClosure() {
self.pageContents.push(str.join(''));
extractTextPromisesResolves[pageIndex](pageIndex);
if ((pageIndex + 1) < self.pdfPageSource.pages.length) {
if ((pageIndex + 1) < self.pdfPageSource.pagesCount) {
extractPageText(pageIndex + 1);
}
}
@ -189,7 +189,7 @@ var PDFFindController = (function PDFFindControllerClosure() {
},
updatePage: function PDFFindController_updatePage(index) {
var page = this.pdfPageSource.pages[index];
var page = this.pdfPageSource.getPageView(index);
if (this.selected.pageIdx === index) {
// If the page is selected, scroll the page into view, which triggers
@ -206,7 +206,7 @@ var PDFFindController = (function PDFFindControllerClosure() {
nextMatch: function PDFFindController_nextMatch() {
var previous = this.state.findPrevious;
var currentPageIndex = this.pdfPageSource.page - 1;
var numPages = this.pdfPageSource.pages.length;
var numPages = this.pdfPageSource.pagesCount;
this.active = true;

314
web/pdf_viewer.js Normal file
View File

@ -0,0 +1,314 @@
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
/* Copyright 2014 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*globals watchScroll, Cache, DEFAULT_CACHE_SIZE, PageView, UNKNOWN_SCALE,
IGNORE_CURRENT_POSITION_ON_ZOOM, SCROLLBAR_PADDING, VERTICAL_PADDING,
MAX_AUTO_SCALE, getVisibleElements, PresentationMode,
RenderingStates */
'use strict';
var PDFViewer = (function pdfViewer() {
function PDFViewer(options) {
this.container = options.container;
this.viewer = options.viewer;
this.renderingQueue = options.renderingQueue;
this.linkService = options.linkService;
this.scroll = watchScroll(this.container, this._scrollUpdate.bind(this));
this.pages = [];
this.cache = new Cache(DEFAULT_CACHE_SIZE);
this.currentPageNumber = 1;
this.previousPageNumber = 1;
this.updateInProgress = true;
this.resetView();
}
PDFViewer.prototype = {
get pagesCount() {
return this.pages.length;
},
setCurrentPageNumber: function (val) {
var event = document.createEvent('UIEvents');
event.initUIEvent('pagechange', true, true, window, 0);
event.updateInProgress = this.updateInProgress;
if (!(0 < val && val <= this.pagesCount)) {
this.previousPageNumber = val;
event.pageNumber = this.page;
this.container.dispatchEvent(event);
return;
}
this.pages[val - 1].updateStats();
this.previousPageNumber = this.currentPageNumber;
this.currentPageNumber = val;
event.pageNumber = val;
this.container.dispatchEvent(event);
},
addPage: function (pageNum, scale, viewport) {
var pageView = new PageView(this.viewer, pageNum, scale, viewport,
this.linkService, this.renderingQueue,
this.cache, this);
this.pages.push(pageView);
return pageView;
},
resetView: function () {
this.currentScale = UNKNOWN_SCALE;
this.currentScaleValue = null;
this.location = null;
},
_scrollUpdate: function () {
if (this.pagesCount === 0) {
return;
}
this.update();
},
_setScaleUpdatePages: function pdfViewer_setScaleUpdatePages(
newScale, newValue, resetAutoSettings, noScroll, preset) {
this.currentScaleValue = newValue;
if (newScale === this.currentScale) {
return;
}
for (var i = 0, ii = this.pages.length; i < ii; i++) {
this.pages[i].update(newScale);
}
this.currentScale = newScale;
if (!noScroll) {
var page = this.currentPageNumber, dest;
if (this.location && !this.inPresentationMode &&
!IGNORE_CURRENT_POSITION_ON_ZOOM) {
page = this.location.pageNumber;
dest = [null, { name: 'XYZ' }, this.location.left,
this.location.top, null];
}
this.pages[page - 1].scrollIntoView(dest);
}
var event = document.createEvent('UIEvents');
event.initUIEvent('scalechange', true, true, window, 0);
event.scale = newScale;
event.resetAutoSettings = resetAutoSettings;
if (preset) {
event.presetValue = newValue;
}
this.container.dispatchEvent(event);
},
setScale: function pdfViewer_setScale(value, resetAutoSettings, noScroll) {
if (value === 'custom') {
return;
}
var scale = parseFloat(value);
if (scale > 0) {
this._setScaleUpdatePages(scale, value, true, noScroll, false);
} else {
var currentPage = this.pages[this.currentPageNumber - 1];
if (!currentPage) {
return;
}
var hPadding = PresentationMode.active ? 0 : SCROLLBAR_PADDING;
var vPadding = PresentationMode.active ? 0 : VERTICAL_PADDING;
var pageWidthScale = (this.container.clientWidth - hPadding) /
currentPage.width * currentPage.scale;
var pageHeightScale = (this.container.clientHeight - vPadding) /
currentPage.height * currentPage.scale;
switch (value) {
case 'page-actual':
scale = 1;
break;
case 'page-width':
scale = pageWidthScale;
break;
case 'page-height':
scale = pageHeightScale;
break;
case 'page-fit':
scale = Math.min(pageWidthScale, pageHeightScale);
break;
case 'auto':
var isLandscape = (currentPage.width > currentPage.height);
var horizontalScale = isLandscape ? pageHeightScale :
pageWidthScale;
scale = Math.min(MAX_AUTO_SCALE, horizontalScale);
break;
default:
console.error('pdfViewSetScale: \'' + value +
'\' is an unknown zoom value.');
return;
}
this._setScaleUpdatePages(scale, value, resetAutoSettings, noScroll,
true);
}
},
updateRotation: function pdfViewRotatePages(rotation) {
for (var i = 0, l = this.pages.length; i < l; i++) {
var page = this.pages[i];
page.update(page.scale, rotation);
}
this.setScale(this.currentScaleValue, true, true);
},
removeAllPages: function () {
var container = this.viewer;
while (container.hasChildNodes()) {
container.removeChild(container.lastChild);
}
this.pages = [];
},
updateLocation: function (firstPage) {
var currentScale = this.currentScale;
var currentScaleValue = this.currentScaleValue;
var normalizedScaleValue =
parseFloat(currentScaleValue) === currentScale ?
Math.round(currentScale * 10000) / 100 : currentScaleValue;
var pageNumber = firstPage.id;
var pdfOpenParams = '#page=' + pageNumber;
pdfOpenParams += '&zoom=' + normalizedScaleValue;
var currentPageView = this.pages[pageNumber - 1];
var container = this.container;
var topLeft = currentPageView.getPagePoint(
(container.scrollLeft - firstPage.x),
(container.scrollTop - firstPage.y));
var intLeft = Math.round(topLeft[0]);
var intTop = Math.round(topLeft[1]);
pdfOpenParams += ',' + intLeft + ',' + intTop;
this.location = {
pageNumber: pageNumber,
scale: normalizedScaleValue,
top: intTop,
left: intLeft,
pdfOpenParams: pdfOpenParams
};
},
get inPresentationMode() {
return PresentationMode.active || PresentationMode.switchInProgress;
},
update: function () {
var visible = this.getVisiblePages();
var visiblePages = visible.views;
if (visiblePages.length === 0) {
return;
}
this.updateInProgress = true;
var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE,
2 * visiblePages.length + 1);
this.cache.resize(suggestedCacheSize);
this.renderingQueue.renderHighestPriority(visible);
var currentId = this.currentPageNumber;
var firstPage = visible.first;
for (var i = 0, ii = visiblePages.length, stillFullyVisible = false;
i < ii; ++i) {
var page = visiblePages[i];
if (page.percent < 100) {
break;
}
if (page.id === this.currentPageNumber) {
stillFullyVisible = true;
break;
}
}
if (!stillFullyVisible) {
currentId = visiblePages[0].id;
}
if (!PresentationMode.active) {
this.setCurrentPageNumber(currentId);
}
this.updateLocation(firstPage);
this.updateInProgress = false;
var event = document.createEvent('UIEvents');
event.initUIEvent('updateviewarea', true, true, window, 0);
this.container.dispatchEvent(event);
},
containsElement: function (element) {
return this.container.contains(element);
},
focus: function () {
this.container.focus();
},
blur: function () {
this.container.blur();
},
get isHorizontalScrollbarEnabled() {
return (PresentationMode.active ? false :
(this.container.scrollWidth > this.container.clientWidth));
},
getVisiblePages: function () {
if (!PresentationMode.active) {
return getVisibleElements(this.container, this.pages, true);
} else {
// The algorithm in getVisibleElements doesn't work in all browsers and
// configurations when presentation mode is active.
var visible = [];
var currentPage = this.pages[this.currentPageNumber - 1];
visible.push({ id: currentPage.id, view: currentPage });
return { first: currentPage, last: currentPage, views: visible };
}
},
cleanup: function () {
for (var i = 0, ii = this.pages.length; i < ii; i++) {
if (this.pages[i] &&
this.pages[i].renderingState !== RenderingStates.FINISHED) {
this.pages[i].reset();
}
}
},
forceRendering: function (currentlyVisiblePages) {
var visiblePages = currentlyVisiblePages || this.getVisiblePages();
var pageView = this.renderingQueue.getHighestPriority(visiblePages,
this.pages,
this.scroll.down);
if (pageView) {
this.renderingQueue.renderView(pageView, 'page');
return;
}
},
};
return PDFViewer;
})();

6
web/presentation_mode.js
View File

@ -68,7 +68,7 @@ var PresentationMode = {
},
/**
* Initialize a timeout that is used to reset PDFView.currentPosition when the
* Initialize a timeout that is used to specify switchInProgress when the
* browser transitions to fullscreen mode. Since resize events are triggered
* multiple times during the switch to fullscreen mode, this is necessary in
* order to prevent the page from being scrolled partially, or completely,
@ -82,8 +82,6 @@ var PresentationMode = {
this.switchInProgress = setTimeout(function switchInProgressTimeout() {
delete this.switchInProgress;
}.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
PDFView.currentPosition = null;
},
_resetSwitchInProgress: function presentationMode_resetSwitchInProgress() {
@ -150,7 +148,7 @@ var PresentationMode = {
// Note: This is only necessary in non-Mozilla browsers.
setTimeout(function exitPresentationModeTimeout() {
this.active = false;
PDFView.setScale(this.args.previousScale);
PDFView.setScale(this.args.previousScale, true);
PDFView.page = page;
this.args = null;
}.bind(this), 0);

1
web/viewer.html
View File

@ -69,6 +69,7 @@ http://sourceforge.net/adobe/cmap/wiki/License/
<script src="download_manager.js"></script>
<script src="view_history.js"></script>
<script src="page_view.js"></script>
<script src="pdf_viewer.js"></script>
<script src="thumbnail_view.js"></script>
<script src="text_layer_builder.js"></script>
<script src="document_outline_view.js"></script>

428
web/viewer.js
View File

@ -21,7 +21,7 @@
PasswordPrompt, PresentationMode, HandTool, Promise,
DocumentProperties, DocumentOutlineView, DocumentAttachmentsView,
OverlayManager, PDFFindController, PDFFindBar, getVisibleElements,
watchScroll */
watchScroll, PDFViewer */
'use strict';
@ -92,9 +92,6 @@ var mozL10n = document.mozL10n || document.webL10n;
//#include chromecom.js
//#endif
var cache = new Cache(DEFAULT_CACHE_SIZE);
var currentPageNumber = 1;
//#include view_history.js
//#include pdf_find_bar.js
//#include pdf_find_controller.js
@ -107,33 +104,32 @@ var currentPageNumber = 1;
//#include document_properties.js
var PDFView = {
pages: [],
currentScale: UNKNOWN_SCALE,
currentScaleValue: null,
initialBookmark: document.location.hash.substring(1),
container: null,
initialized: false,
fellback: false,
pdfDocument: null,
sidebarOpen: false,
printing: false,
pageViewScroll: null,
pdfViewer: null,
pdfThumbnailViewer: null,
pageRotation: 0,
mouseScrollTimeStamp: 0,
mouseScrollDelta: 0,
lastScroll: 0,
previousPageNumber: 1,
isViewerEmbedded: (window.parent !== window),
idleTimeout: null,
currentPosition: null,
url: '',
// called once when the document is loaded
initialize: function pdfViewInitialize() {
var self = this;
var container = this.container = document.getElementById('viewerContainer');
this.pageViewScroll = watchScroll(container, updateViewarea);
var container = document.getElementById('viewerContainer');
var viewer = document.getElementById('viewer');
this.pdfViewer = new PDFViewer({
container: container,
viewer: viewer,
renderingQueue: this,
linkService: this
});
var thumbnailContainer = document.getElementById('thumbnailView');
this.pdfThumbnailViewer = new PDFThumbnailViewer({
@ -271,133 +267,44 @@ var PDFView = {
return this.pdfDocument.getPage(n);
},
_setScaleUpdatePages: function pdfView_setScaleUpdatePages(
newScale, newValue, resetAutoSettings, noScroll) {
this.currentScaleValue = newValue;
if (newScale === this.currentScale) {
return;
}
for (var i = 0, ii = this.pages.length; i < ii; i++) {
this.pages[i].update(newScale);
}
this.currentScale = newScale;
if (!noScroll) {
var page = this.page, dest;
if (this.currentPosition && !IGNORE_CURRENT_POSITION_ON_ZOOM) {
page = this.currentPosition.page;
dest = [null, { name: 'XYZ' }, this.currentPosition.left,
this.currentPosition.top, null];
}
this.pages[page - 1].scrollIntoView(dest);
}
var event = document.createEvent('UIEvents');
event.initUIEvent('scalechange', false, false, window, 0);
event.scale = newScale;
event.resetAutoSettings = resetAutoSettings;
window.dispatchEvent(event);
},
setScale: function pdfViewSetScale(value, resetAutoSettings, noScroll) {
if (value === 'custom') {
return;
}
var scale = parseFloat(value);
if (scale > 0) {
this._setScaleUpdatePages(scale, value, true, noScroll);
} else {
var currentPage = this.pages[this.page - 1];
if (!currentPage) {
return;
}
var hPadding = PresentationMode.active ? 0 : SCROLLBAR_PADDING;
var vPadding = PresentationMode.active ? 0 : VERTICAL_PADDING;
var pageWidthScale = (this.container.clientWidth - hPadding) /
currentPage.width * currentPage.scale;
var pageHeightScale = (this.container.clientHeight - vPadding) /
currentPage.height * currentPage.scale;
switch (value) {
case 'page-actual':
scale = 1;
break;
case 'page-width':
scale = pageWidthScale;
break;
case 'page-height':
scale = pageHeightScale;
break;
case 'page-fit':
scale = Math.min(pageWidthScale, pageHeightScale);
break;
case 'auto':
var isLandscape = (currentPage.width > currentPage.height);
var horizontalScale = isLandscape ? pageHeightScale : pageWidthScale;
scale = Math.min(MAX_AUTO_SCALE, horizontalScale);
break;
default:
console.error('pdfViewSetScale: \'' + value +
'\' is an unknown zoom value.');
return;
}
this._setScaleUpdatePages(scale, value, resetAutoSettings, noScroll);
selectScaleOption(value);
}
getPageView: function pdfViewGetPageView(index) {
return this.pdfViewer.pages[index];
},
zoomIn: function pdfViewZoomIn(ticks) {
var newScale = this.currentScale;
var newScale = this.pdfViewer.currentScale;
do {
newScale = (newScale * DEFAULT_SCALE_DELTA).toFixed(2);
newScale = Math.ceil(newScale * 10) / 10;
newScale = Math.min(MAX_SCALE, newScale);
} while (--ticks && newScale < MAX_SCALE);
this.setScale(newScale, true);
this.pdfViewer.setScale(newScale, true);
},
zoomOut: function pdfViewZoomOut(ticks) {
var newScale = this.currentScale;
var newScale = this.pdfViewer.currentScale;
do {
newScale = (newScale / DEFAULT_SCALE_DELTA).toFixed(2);
newScale = Math.floor(newScale * 10) / 10;
newScale = Math.max(MIN_SCALE, newScale);
} while (--ticks && newScale > MIN_SCALE);
this.setScale(newScale, true);
this.pdfViewer.setScale(newScale, true);
},
get currentScaleValue() {
return this.pdfViewer.currentScaleValue;
},
get pagesCount() {
return this.pdfDocument.numPages;
},
set page(val) {
var pages = this.pages;
var event = document.createEvent('UIEvents');
event.initUIEvent('pagechange', false, false, window, 0);
if (!(0 < val && val <= pages.length)) {
this.previousPageNumber = val;
event.pageNumber = this.page;
window.dispatchEvent(event);
return;
}
pages[val - 1].updateStats();
this.previousPageNumber = currentPageNumber;
currentPageNumber = val;
event.pageNumber = val;
window.dispatchEvent(event);
// checking if the this.page was called from the updateViewarea function:
// avoiding the creation of two "set page" method (internal and public)
if (updateViewarea.inProgress) {
return;
}
// Avoid scrolling the first page during loading
if (this.loading && val === 1) {
return;
}
pages[val - 1].scrollIntoView();
this.pdfViewer.setCurrentPageNumber(val);
},
get page() {
return currentPageNumber;
return this.pdfViewer.currentPageNumber;
},
get supportsPrinting() {
@ -478,11 +385,6 @@ var PDFView = {
return bar;
},
get isHorizontalScrollbarEnabled() {
return (PresentationMode.active ? false :
(this.container.scrollWidth > this.container.clientWidth));
},
//#if (FIREFOX || MOZCENTRAL)
initPassiveLoading: function pdfViewInitPassiveLoading() {
var pdfDataRangeTransport = {
@ -590,11 +492,7 @@ var PDFView = {
this.pdfDocument = null;
this.pdfThumbnailViewer.removeAllThumbnails();
var container = document.getElementById('viewer');
while (container.hasChildNodes()) {
container.removeChild(container.lastChild);
}
this.pdfViewer.removeAllPages();
if (typeof PDFBug !== 'undefined') {
PDFBug.cleanup();
@ -745,10 +643,10 @@ var PDFView = {
self.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] :
(destRef + 1);
if (pageNumber) {
if (pageNumber > self.pages.length) {
pageNumber = self.pages.length;
if (pageNumber > self.pagesCount) {
pageNumber = self.pagesCount;
}
var currentPage = self.pages[pageNumber - 1];
var currentPage = self.getPageView(pageNumber - 1);
currentPage.scrollIntoView(dest);
// Update the browsing history.
@ -774,6 +672,48 @@ var PDFView = {
});
},
executeNamedAction: function pdfViewExecuteNamedAction(action) {
// See PDF reference, table 8.45 - Named action
switch (action) {
case 'GoToPage':
document.getElementById('pageNumber').focus();
break;
case 'GoBack':
PDFHistory.back();
break;
case 'GoForward':
PDFHistory.forward();
break;
case 'Find':
if (!PDFView.supportsIntegratedFind) {
PDFView.findBar.toggle();
}
break;
case 'NextPage':
PDFView.page++;
break;
case 'PrevPage':
PDFView.page--;
break;
case 'LastPage':
PDFView.page = PDFView.pagesCount;
break;
case 'FirstPage':
PDFView.page = 1;
break;
default:
break; // No action according to spec
}
},
getDestinationHash: function pdfViewGetDestinationHash(dest) {
if (typeof dest === 'string') {
return PDFView.getAnchorUrl('#' + escape(dest));
@ -946,7 +886,6 @@ var PDFView = {
this.pageRotation = 0;
var pages = this.pages = [];
var pagesRefMap = this.pagesRefMap = {};
var resolvePagesPromise;
@ -956,7 +895,7 @@ var PDFView = {
this.pagesPromise = pagesPromise;
var firstPagePromise = pdfDocument.getPage(1);
var container = document.getElementById('viewer');
var pagesViewer = this.pdfViewer;
var thumbsViewer = this.pdfThumbnailViewer;
// Fetch a single page so we can get a viewport that will be the default
@ -965,12 +904,9 @@ var PDFView = {
var viewport = pdfPage.getViewport((scale || 1.0) * CSS_UNITS);
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
var viewportClone = viewport.clone();
var pageView = new PageView(container, pageNum, scale,
self.navigateTo.bind(self),
viewportClone);
var pageView = pagesViewer.addPage(pageNum, scale, viewportClone);
var thumbnailView = thumbsViewer.addThumbnail(pageNum, viewportClone);
bindOnAfterDraw(pageView, thumbnailView);
pages.push(pageView);
}
// Fetch all the pages since the viewport is needed before printing
@ -981,7 +917,7 @@ var PDFView = {
var getPagesLeft = pagesCount;
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
pdfDocument.getPage(pageNum).then(function (pageNum, pdfPage) {
var pageView = pages[pageNum - 1];
var pageView = PDFView.getPageView(pageNum - 1);
if (!pageView.pdfPage) {
pageView.setPdfPage(pdfPage);
}
@ -1005,7 +941,7 @@ var PDFView = {
window.dispatchEvent(event);
});
PDFView.loadingBar.setWidth(container);
PDFView.loadingBar.setWidth(document.getElementById('viewer'));
PDFView.findController.resolveFirstPage();
@ -1031,7 +967,8 @@ var PDFView = {
var storedHash = null;
if (showPreviousViewOnLoad && store.get('exists', false)) {
var pageNum = store.get('page', '1');
var zoom = defaultZoomValue || store.get('zoom', PDFView.currentScale);
var zoom = defaultZoomValue ||
store.get('zoom', PDFView.pdfViewer.currentScale);
var left = store.get('scrollLeft', '0');
var top = store.get('scrollTop', '0');
@ -1045,9 +982,9 @@ var PDFView = {
// Make all navigation keys work on document load,
// unless the viewer is embedded in a web page.
if (!self.isViewerEmbedded) {
self.container.focus();
self.pdfViewer.focus();
//#if (FIREFOX || MOZCENTRAL)
// self.container.blur();
// self.pdfViewer.blur();
//#endif
}
}, function rejected(reason) {
@ -1183,15 +1120,13 @@ var PDFView = {
setInitialView: function pdfViewSetInitialView(storedHash, scale) {
// Reset the current scale, as otherwise the page's scale might not get
// updated if the zoom level stayed the same.
this.currentScale = UNKNOWN_SCALE;
this.currentScaleValue = null;
this.pdfViewer.resetView();
// When opening a new file (when one is already loaded in the viewer):
// Reset 'currentPageNumber', since otherwise the page's scale will be wrong
// if 'currentPageNumber' is larger than the number of pages in the file.
document.getElementById('pageNumber').value = currentPageNumber = 1;
// Reset the current position when loading a new file,
// to prevent displaying the wrong position in the document.
this.currentPosition = null;
document.getElementById('pageNumber').value =
this.pdfViewer.currentPageNumber = 1;
if (PDFHistory.initialDestination) {
this.navigateTo(PDFHistory.initialDestination);
@ -1203,14 +1138,14 @@ var PDFView = {
} else if (storedHash) {
this.setHash(storedHash);
} else if (scale) {
this.setScale(scale, true);
this.pdfViewer.setScale(scale, true);
this.page = 1;
}
if (PDFView.currentScale === UNKNOWN_SCALE) {
if (PDFView.pdfViewer.currentScale === UNKNOWN_SCALE) {
// Scale was not initialized: invalid bookmark or scale was not specified.
// Setting the default one.
this.setScale(DEFAULT_SCALE, true);
this.pdfViewer.setScale(DEFAULT_SCALE, true);
}
},
@ -1222,11 +1157,7 @@ var PDFView = {
}
// Pages have a higher priority than thumbnails, so check them first.
var visiblePages = currentlyVisiblePages || this.getVisiblePages();
var pageView = this.getHighestPriority(visiblePages, this.pages,
this.pageViewScroll.down);
if (pageView) {
this.renderView(pageView, 'page');
if (this.pdfViewer.forceRendering(currentlyVisiblePages)) {
return;
}
// No pages needed rendering so check thumbnails.
@ -1247,15 +1178,9 @@ var PDFView = {
},
cleanup: function pdfViewCleanup() {
for (var i = 0, ii = this.pages.length; i < ii; i++) {
if (this.pages[i] &&
this.pages[i].renderingState !== RenderingStates.FINISHED) {
this.pages[i].reset();
}
}
this.pdfDocument.cleanup();
this.pdfViewer.cleanup();
this.pdfThumbnailViewer.cleanup();
this.pdfDocument.cleanup();
},
getHighestPriority: function pdfViewGetHighestPriority(visible, views,
@ -1363,7 +1288,7 @@ var PDFView = {
zoomArg];
}
if (dest) {
var currentPage = this.pages[(pageNumber || this.page) - 1];
var currentPage = this.getPageView((pageNumber || this.page) - 1);
currentPage.scrollIntoView(dest);
} else if (pageNumber) {
this.page = pageNumber; // simple page
@ -1443,19 +1368,6 @@ var PDFView = {
}
},
getVisiblePages: function pdfViewGetVisiblePages() {
if (!PresentationMode.active) {
return getVisibleElements(this.container, this.pages, true);
} else {
// The algorithm in getVisibleElements doesn't work in all browsers and
// configurations when presentation mode is active.
var visible = [];
var currentPage = this.pages[this.page - 1];
visible.push({ id: currentPage.id, view: currentPage });
return { first: currentPage, last: currentPage, views: visible };
}
},
// Helper function to parse query string (e.g. ?param1=value&parm2=...).
parseQueryString: function pdfViewParseQueryString(query) {
var parts = query.split('&');
@ -1479,11 +1391,11 @@ var PDFView = {
var alertNotReady = false;
var i, ii;
if (!this.pages.length) {
if (!this.pagesCount) {
alertNotReady = true;
} else {
for (i = 0, ii = this.pages.length; i < ii; ++i) {
if (!this.pages[i].pdfPage) {
for (i = 0, ii = this.pagesCount; i < ii; ++i) {
if (!this.getPageView(i).pdfPage) {
alertNotReady = true;
break;
}
@ -1501,8 +1413,8 @@ var PDFView = {
var body = document.querySelector('body');
body.setAttribute('data-mozPrintCallback', true);
for (i = 0, ii = this.pages.length; i < ii; ++i) {
this.pages[i].beforePrint();
for (i = 0, ii = this.pagesCount; i < ii; ++i) {
this.getPageView(i).beforePrint();
}
//#if (FIREFOX || MOZCENTRAL)
@ -1522,20 +1434,17 @@ var PDFView = {
this.renderHighestPriority();
},
setScale: function (value, resetAutoSettings, noScroll) {
this.pdfViewer.setScale(value, resetAutoSettings, noScroll);
},
rotatePages: function pdfViewRotatePages(delta) {
var currentPage = this.pages[this.page - 1];
var i, l;
var currentPage = this.getPageView(this.page - 1);
this.pageRotation = (this.pageRotation + 360 + delta) % 360;
for (i = 0, l = this.pages.length; i < l; i++) {
var page = this.pages[i];
page.update(page.scale, this.pageRotation);
}
this.pdfViewer.updateRotation(this.pageRotation);
this.pdfThumbnailViewer.updateRotation(this.pageRotation);
this.setScale(this.currentScaleValue, true, true);
this.renderHighestPriority();
if (currentPage) {
@ -1590,7 +1499,7 @@ var PDFView = {
// In case we are already on the first or the last page there is no need
// to do anything.
if ((currentPage === 1 && pageFlipDirection === PageFlipDirection.UP) ||
(currentPage === this.pages.length &&
(currentPage === this.pagesCount &&
pageFlipDirection === PageFlipDirection.DOWN)) {
return;
}
@ -1613,6 +1522,7 @@ var PDFView = {
};
//#include page_view.js
//#include pdf_viewer.js
//#include thumbnail_view.js
//#include text_layer_builder.js
//#include document_outline_view.js
@ -1847,7 +1757,7 @@ function webViewerInitialized() {
document.getElementById('scaleSelect').addEventListener('change',
function() {
PDFView.setScale(this.value);
PDFView.pdfViewer.setScale(this.value);
});
document.getElementById('presentationMode').addEventListener('click',
@ -1905,100 +1815,49 @@ function webViewerInitialized() {
document.addEventListener('DOMContentLoaded', webViewerLoad, true);
function updateViewarea() {
if (!PDFView.initialized) {
return;
}
var visible = PDFView.getVisiblePages();
var visiblePages = visible.views;
if (visiblePages.length === 0) {
PDFView.pdfViewer.update();
}
window.addEventListener('updateviewarea', function () {
if (!PDFView.initialized) {
return;
}
var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE,
2 * visiblePages.length + 1);
cache.resize(suggestedCacheSize);
PDFView.renderHighestPriority(visible);
var currentId = PDFView.page;
var firstPage = visible.first;
for (var i = 0, ii = visiblePages.length, stillFullyVisible = false;
i < ii; ++i) {
var page = visiblePages[i];
if (page.percent < 100) {
break;
}
if (page.id === PDFView.page) {
stillFullyVisible = true;
break;
}
}
if (!stillFullyVisible) {
currentId = visiblePages[0].id;
}
if (!PresentationMode.active) {
updateViewarea.inProgress = true; // used in "set page"
PDFView.page = currentId;
updateViewarea.inProgress = false;
}
var currentScale = PDFView.currentScale;
var currentScaleValue = PDFView.currentScaleValue;
var normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ?
Math.round(currentScale * 10000) / 100 : currentScaleValue;
var pageNumber = firstPage.id;
var pdfOpenParams = '#page=' + pageNumber;
pdfOpenParams += '&zoom=' + normalizedScaleValue;
var currentPage = PDFView.pages[pageNumber - 1];
var container = PDFView.container;
var topLeft = currentPage.getPagePoint((container.scrollLeft - firstPage.x),
(container.scrollTop - firstPage.y));
var intLeft = Math.round(topLeft[0]);
var intTop = Math.round(topLeft[1]);
pdfOpenParams += ',' + intLeft + ',' + intTop;
if (PresentationMode.active || PresentationMode.switchInProgress) {
PDFView.currentPosition = null;
} else {
PDFView.currentPosition = { page: pageNumber, left: intLeft, top: intTop };
}
var location = PDFView.pdfViewer.location;
PDFView.store.initializedPromise.then(function() {
PDFView.store.setMultiple({
'exists': true,
'page': pageNumber,
'zoom': normalizedScaleValue,
'scrollLeft': intLeft,
'scrollTop': intTop
'page': location.pageNumber,
'zoom': location.scale,
'scrollLeft': location.left,
'scrollTop': location.top
}).catch(function() {
// unable to write to storage
});
});
var href = PDFView.getAnchorUrl(pdfOpenParams);
var href = PDFView.getAnchorUrl(location.pdfOpenParams);
document.getElementById('viewBookmark').href = href;
document.getElementById('secondaryViewBookmark').href = href;
// Update the current bookmark in the browsing history.
PDFHistory.updateCurrentBookmark(pdfOpenParams, pageNumber);
}
PDFHistory.updateCurrentBookmark(location.pdfOpenParams, location.pageNumber);
}, true);
window.addEventListener('resize', function webViewerResize(evt) {
if (PDFView.initialized &&
(document.getElementById('pageWidthOption').selected ||
document.getElementById('pageFitOption').selected ||
document.getElementById('pageAutoOption').selected)) {
PDFView.setScale(document.getElementById('scaleSelect').value);
PDFView.pdfViewer.setScale(document.getElementById('scaleSelect').value);
}
updateViewarea();
// Set the 'max-height' CSS property of the secondary toolbar.
SecondaryToolbar.setMaxHeight(PDFView.container);
SecondaryToolbar.setMaxHeight(document.getElementById('viewerContainer'));
});
window.addEventListener('hashchange', function webViewerHashchange(evt) {
@ -2077,7 +1936,7 @@ window.addEventListener('localized', function localized(evt) {
}
// Set the 'max-height' CSS property of the secondary toolbar.
SecondaryToolbar.setMaxHeight(PDFView.container);
SecondaryToolbar.setMaxHeight(document.getElementById('viewerContainer'));
});
}, true);
@ -2096,6 +1955,12 @@ window.addEventListener('scalechange', function scalechange(evt) {
return;
}
if (evt.presetValue) {
selectScaleOption(evt.presetValue);
updateViewarea();
return;
}
var predefinedValueFound = selectScaleOption('' + evt.scale);
if (!predefinedValueFound) {
customScaleOption.textContent = Math.round(evt.scale * 10000) / 100 + '%';
@ -2106,17 +1971,27 @@ window.addEventListener('scalechange', function scalechange(evt) {
window.addEventListener('pagechange', function pagechange(evt) {
var page = evt.pageNumber;
if (PDFView.previousPageNumber !== page) {
if (PDFView.pdfViewer.previousPageNumber !== page) {
document.getElementById('pageNumber').value = page;
PDFView.pdfThumbnailViewer.updatePage(page);
}
var numPages = PDFView.pages.length;
var numPages = PDFView.pagesCount;
document.getElementById('previous').disabled = (page <= 1);
document.getElementById('next').disabled = (page >= numPages);
document.getElementById('firstPage').disabled = (page <= 1);
document.getElementById('lastPage').disabled = (page >= numPages);
// checking if the this.page was called from the updateViewarea function
if (evt.updateInProgress) {
return;
}
// Avoid scrolling the first page during loading
if (this.loading && page === 1) {
return;
}
PDFView.getPageView(page - 1).scrollIntoView();
}, true);
function handleMouseWheel(evt) {
@ -2138,7 +2013,8 @@ window.addEventListener('mousewheel', handleMouseWheel);
window.addEventListener('click', function click(evt) {
if (!PresentationMode.active) {
if (SecondaryToolbar.opened && PDFView.container.contains(evt.target)) {
if (SecondaryToolbar.opened &&
PDFView.pdfViewer.containsElement(evt.target)) {
SecondaryToolbar.close();
}
} else if (evt.button === 0) {
@ -2194,7 +2070,7 @@ window.addEventListener('keydown', function keydown(evt) {
// keeping it unhandled (to restore page zoom to 100%)
setTimeout(function () {
// ... and resetting the scale after browser adjusts its scale
PDFView.setScale(DEFAULT_SCALE, true);
PDFView.pdfViewer.setScale(DEFAULT_SCALE, true);
});
handled = false;
break;
@ -2259,7 +2135,7 @@ window.addEventListener('keydown', function keydown(evt) {
/* falls through */
case 37: // left arrow
// horizontal scrolling using arrow keys
if (PDFView.isHorizontalScrollbarEnabled) {
if (PDFView.pdfViewer.isHorizontalScrollbarEnabled) {
break;
}
/* falls through */
@ -2288,7 +2164,7 @@ window.addEventListener('keydown', function keydown(evt) {
/* falls through */
case 39: // right arrow
// horizontal scrolling using arrow keys
if (PDFView.isHorizontalScrollbarEnabled) {
if (PDFView.pdfViewer.isHorizontalScrollbarEnabled) {
break;
}
/* falls through */
@ -2306,8 +2182,8 @@ window.addEventListener('keydown', function keydown(evt) {
break;
case 35: // end
if (PresentationMode.active || (PDFView.pdfDocument &&
PDFView.page < PDFView.pdfDocument.numPages)) {
PDFView.page = PDFView.pdfDocument.numPages;
PDFView.page < PDFView.pagesCount)) {
PDFView.page = PDFView.pagesCount;
handled = true;
}
break;
@ -2344,21 +2220,21 @@ window.addEventListener('keydown', function keydown(evt) {
// 33=Page Up 34=Page Down 35=End 36=Home
// 37=Left 38=Up 39=Right 40=Down
if (evt.keyCode >= 33 && evt.keyCode <= 40 &&
!PDFView.container.contains(curElement)) {
!PDFView.pdfViewer.containsElement(curElement)) {
// The page container is not focused, but a page navigation key has been
// pressed. Change the focus to the viewer container to make sure that
// navigation by keyboard works as expected.
PDFView.container.focus();
PDFView.pdfViewer.focus();
}
// 32=Spacebar
if (evt.keyCode === 32 && curElementTagName !== 'BUTTON') {
//#if (FIREFOX || MOZCENTRAL)
// // Workaround for issue in Firefox, that prevents scroll keys from
// // working when elements with 'tabindex' are focused. (#3498)
// PDFView.container.blur();
// PDFView.pdfViewer.blur();
//#else
if (!PDFView.container.contains(curElement)) {
PDFView.container.focus();
if (!PDFView.pdfViewer.containsElement(curElement)) {
PDFView.pdfViewer.focus();
}
//#endif
}