Move PDFThumbnailViewer to its own file
This commit is contained in:
Jonas Jenwald
parent
dd7fd0b665
commit
c55dcf19a0
180
web/pdf_thumbnail_viewer.js
Normal file
180
web/pdf_thumbnail_viewer.js
Normal file
@ -0,0 +1,180 @@
|
|||||||
|
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
||||||
|
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
|
||||||
|
/* Copyright 2012 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, getVisibleElements, scrollIntoView, ThumbnailView,
|
||||||
|
Promise */
|
||||||
|
|
||||||
|
'use strict';
|
||||||
|
|
||||||
|
var THUMBNAIL_SCROLL_MARGIN = -19;
|
||||||
|
|
||||||
|
//#include thumbnail_view.js
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @typedef {Object} PDFThumbnailViewerOptions
|
||||||
|
* @property {HTMLDivElement} container - The container for the thumbs elements.
|
||||||
|
* @property {IPDFLinkService} linkService - The navigation/linking service.
|
||||||
|
* @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Simple viewer control to display thumbs for pages.
|
||||||
|
* @class
|
||||||
|
*/
|
||||||
|
var PDFThumbnailViewer = (function pdfThumbnailViewer() {
|
||||||
|
/**
|
||||||
|
* @constructs
|
||||||
|
* @param {PDFThumbnailViewerOptions} options
|
||||||
|
*/
|
||||||
|
function PDFThumbnailViewer(options) {
|
||||||
|
this.container = options.container;
|
||||||
|
this.renderingQueue = options.renderingQueue;
|
||||||
|
this.linkService = options.linkService;
|
||||||
|
|
||||||
|
this.scroll = watchScroll(this.container, this._scrollUpdated.bind(this));
|
||||||
|
this._resetView();
|
||||||
|
}
|
||||||
|
|
||||||
|
PDFThumbnailViewer.prototype = {
|
||||||
|
_scrollUpdated: function PDFThumbnailViewer_scrollUpdated() {
|
||||||
|
this.renderingQueue.renderHighestPriority();
|
||||||
|
},
|
||||||
|
|
||||||
|
getThumbnail: function PDFThumbnailViewer_getThumbnail(index) {
|
||||||
|
return this.thumbnails[index];
|
||||||
|
},
|
||||||
|
|
||||||
|
_getVisibleThumbs: function PDFThumbnailViewer_getVisibleThumbs() {
|
||||||
|
return getVisibleElements(this.container, this.thumbnails);
|
||||||
|
},
|
||||||
|
|
||||||
|
scrollThumbnailIntoView: function (page) {
|
||||||
|
var selected = document.querySelector('.thumbnail.selected');
|
||||||
|
if (selected) {
|
||||||
|
selected.classList.remove('selected');
|
||||||
|
}
|
||||||
|
var thumbnail = document.getElementById('thumbnailContainer' + page);
|
||||||
|
thumbnail.classList.add('selected');
|
||||||
|
var visibleThumbs = this._getVisibleThumbs();
|
||||||
|
var numVisibleThumbs = visibleThumbs.views.length;
|
||||||
|
|
||||||
|
// If the thumbnail isn't currently visible, scroll it into view.
|
||||||
|
if (numVisibleThumbs > 0) {
|
||||||
|
var first = visibleThumbs.first.id;
|
||||||
|
// Account for only one thumbnail being visible.
|
||||||
|
var last = (numVisibleThumbs > 1 ? visibleThumbs.last.id : first);
|
||||||
|
if (page <= first || page >= last) {
|
||||||
|
scrollIntoView(thumbnail, { top: THUMBNAIL_SCROLL_MARGIN });
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
get pagesRotation() {
|
||||||
|
return this._pagesRotation;
|
||||||
|
},
|
||||||
|
|
||||||
|
set pagesRotation(rotation) {
|
||||||
|
this._pagesRotation = rotation;
|
||||||
|
for (var i = 0, l = this.thumbnails.length; i < l; i++) {
|
||||||
|
var thumb = this.thumbnails[i];
|
||||||
|
thumb.update(rotation);
|
||||||
|
}
|
||||||
|
},
|
||||||
|
|
||||||
|
cleanup: function PDFThumbnailViewer_cleanup() {
|
||||||
|
ThumbnailView.tempImageCache = null;
|
||||||
|
},
|
||||||
|
|
||||||
|
_resetView: function () {
|
||||||
|
this.thumbnails = [];
|
||||||
|
this._pagesRotation = 0;
|
||||||
|
this._pagesRequests = [];
|
||||||
|
},
|
||||||
|
|
||||||
|
setDocument: function (pdfDocument) {
|
||||||
|
if (this.pdfDocument) {
|
||||||
|
// cleanup of the elements and views
|
||||||
|
var thumbsView = this.container;
|
||||||
|
while (thumbsView.hasChildNodes()) {
|
||||||
|
thumbsView.removeChild(thumbsView.lastChild);
|
||||||
|
}
|
||||||
|
this._resetView();
|
||||||
|
}
|
||||||
|
|
||||||
|
this.pdfDocument = pdfDocument;
|
||||||
|
if (!pdfDocument) {
|
||||||
|
return Promise.resolve();
|
||||||
|
}
|
||||||
|
|
||||||
|
return pdfDocument.getPage(1).then(function (firstPage) {
|
||||||
|
var pagesCount = pdfDocument.numPages;
|
||||||
|
var viewport = firstPage.getViewport(1.0);
|
||||||
|
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
|
||||||
|
var thumbnail = new ThumbnailView(this.container, pageNum,
|
||||||
|
viewport.clone(), this.linkService,
|
||||||
|
this.renderingQueue);
|
||||||
|
this.thumbnails.push(thumbnail);
|
||||||
|
}
|
||||||
|
}.bind(this));
|
||||||
|
},
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @param {PDFPageView} pageView
|
||||||
|
* @returns {PDFPage}
|
||||||
|
* @private
|
||||||
|
*/
|
||||||
|
_ensurePdfPageLoaded: function (thumbView) {
|
||||||
|
if (thumbView.pdfPage) {
|
||||||
|
return Promise.resolve(thumbView.pdfPage);
|
||||||
|
}
|
||||||
|
var pageNumber = thumbView.id;
|
||||||
|
if (this._pagesRequests[pageNumber]) {
|
||||||
|
return this._pagesRequests[pageNumber];
|
||||||
|
}
|
||||||
|
var promise = this.pdfDocument.getPage(pageNumber).then(
|
||||||
|
function (pdfPage) {
|
||||||
|
thumbView.setPdfPage(pdfPage);
|
||||||
|
this._pagesRequests[pageNumber] = null;
|
||||||
|
return pdfPage;
|
||||||
|
}.bind(this));
|
||||||
|
this._pagesRequests[pageNumber] = promise;
|
||||||
|
return promise;
|
||||||
|
},
|
||||||
|
|
||||||
|
ensureThumbnailVisible:
|
||||||
|
function PDFThumbnailViewer_ensureThumbnailVisible(page) {
|
||||||
|
// Ensure that the thumbnail of the current page is visible
|
||||||
|
// when switching from another view.
|
||||||
|
scrollIntoView(document.getElementById('thumbnailContainer' + page));
|
||||||
|
},
|
||||||
|
|
||||||
|
forceRendering: function () {
|
||||||
|
var visibleThumbs = this._getVisibleThumbs();
|
||||||
|
var thumbView = this.renderingQueue.getHighestPriority(visibleThumbs,
|
||||||
|
this.thumbnails,
|
||||||
|
this.scroll.down);
|
||||||
|
if (thumbView) {
|
||||||
|
this._ensurePdfPageLoaded(thumbView).then(function () {
|
||||||
|
this.renderingQueue.renderView(thumbView);
|
||||||
|
}.bind(this));
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
return PDFThumbnailViewer;
|
||||||
|
})();
|
||||||
@ -14,12 +14,10 @@
|
|||||||
* See the License for the specific language governing permissions and
|
* See the License for the specific language governing permissions and
|
||||||
* limitations under the License.
|
* limitations under the License.
|
||||||
*/
|
*/
|
||||||
/* globals mozL10n, RenderingStates, Promise, scrollIntoView,
|
/* globals mozL10n, RenderingStates, Promise */
|
||||||
watchScroll, getVisibleElements */
|
|
||||||
|
|
||||||
'use strict';
|
'use strict';
|
||||||
|
|
||||||
var THUMBNAIL_SCROLL_MARGIN = -19;
|
|
||||||
var THUMBNAIL_CANVAS_BORDER_WIDTH = 1;
|
var THUMBNAIL_CANVAS_BORDER_WIDTH = 1;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
@ -252,159 +250,3 @@ var ThumbnailView = function thumbnailView(container, id, defaultViewport,
|
|||||||
};
|
};
|
||||||
|
|
||||||
ThumbnailView.tempImageCache = null;
|
ThumbnailView.tempImageCache = null;
|
||||||
|
|
||||||
/**
|
|
||||||
* @typedef {Object} PDFThumbnailViewerOptions
|
|
||||||
* @property {HTMLDivElement} container - The container for the thumbs elements.
|
|
||||||
* @property {IPDFLinkService} linkService - The navigation/linking service.
|
|
||||||
* @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
|
|
||||||
*/
|
|
||||||
|
|
||||||
/**
|
|
||||||
* Simple viewer control to display thumbs for pages.
|
|
||||||
* @class
|
|
||||||
*/
|
|
||||||
var PDFThumbnailViewer = (function pdfThumbnailViewer() {
|
|
||||||
/**
|
|
||||||
* @constructs
|
|
||||||
* @param {PDFThumbnailViewerOptions} options
|
|
||||||
*/
|
|
||||||
function PDFThumbnailViewer(options) {
|
|
||||||
this.container = options.container;
|
|
||||||
this.renderingQueue = options.renderingQueue;
|
|
||||||
this.linkService = options.linkService;
|
|
||||||
|
|
||||||
this.scroll = watchScroll(this.container, this._scrollUpdated.bind(this));
|
|
||||||
this._resetView();
|
|
||||||
}
|
|
||||||
|
|
||||||
PDFThumbnailViewer.prototype = {
|
|
||||||
_scrollUpdated: function PDFThumbnailViewer_scrollUpdated() {
|
|
||||||
this.renderingQueue.renderHighestPriority();
|
|
||||||
},
|
|
||||||
|
|
||||||
getThumbnail: function PDFThumbnailViewer_getThumbnail(index) {
|
|
||||||
return this.thumbnails[index];
|
|
||||||
},
|
|
||||||
|
|
||||||
_getVisibleThumbs: function PDFThumbnailViewer_getVisibleThumbs() {
|
|
||||||
return getVisibleElements(this.container, this.thumbnails);
|
|
||||||
},
|
|
||||||
|
|
||||||
scrollThumbnailIntoView: function (page) {
|
|
||||||
var selected = document.querySelector('.thumbnail.selected');
|
|
||||||
if (selected) {
|
|
||||||
selected.classList.remove('selected');
|
|
||||||
}
|
|
||||||
var thumbnail = document.getElementById('thumbnailContainer' + page);
|
|
||||||
thumbnail.classList.add('selected');
|
|
||||||
var visibleThumbs = this._getVisibleThumbs();
|
|
||||||
var numVisibleThumbs = visibleThumbs.views.length;
|
|
||||||
|
|
||||||
// If the thumbnail isn't currently visible, scroll it into view.
|
|
||||||
if (numVisibleThumbs > 0) {
|
|
||||||
var first = visibleThumbs.first.id;
|
|
||||||
// Account for only one thumbnail being visible.
|
|
||||||
var last = (numVisibleThumbs > 1 ? visibleThumbs.last.id : first);
|
|
||||||
if (page <= first || page >= last) {
|
|
||||||
scrollIntoView(thumbnail, { top: THUMBNAIL_SCROLL_MARGIN });
|
|
||||||
}
|
|
||||||
}
|
|
||||||
},
|
|
||||||
|
|
||||||
get pagesRotation() {
|
|
||||||
return this._pagesRotation;
|
|
||||||
},
|
|
||||||
|
|
||||||
set pagesRotation(rotation) {
|
|
||||||
this._pagesRotation = rotation;
|
|
||||||
for (var i = 0, l = this.thumbnails.length; i < l; i++) {
|
|
||||||
var thumb = this.thumbnails[i];
|
|
||||||
thumb.update(rotation);
|
|
||||||
}
|
|
||||||
},
|
|
||||||
|
|
||||||
cleanup: function PDFThumbnailViewer_cleanup() {
|
|
||||||
ThumbnailView.tempImageCache = null;
|
|
||||||
},
|
|
||||||
|
|
||||||
_resetView: function () {
|
|
||||||
this.thumbnails = [];
|
|
||||||
this._pagesRotation = 0;
|
|
||||||
this._pagesRequests = [];
|
|
||||||
},
|
|
||||||
|
|
||||||
setDocument: function (pdfDocument) {
|
|
||||||
if (this.pdfDocument) {
|
|
||||||
// cleanup of the elements and views
|
|
||||||
var thumbsView = this.container;
|
|
||||||
while (thumbsView.hasChildNodes()) {
|
|
||||||
thumbsView.removeChild(thumbsView.lastChild);
|
|
||||||
}
|
|
||||||
this._resetView();
|
|
||||||
}
|
|
||||||
|
|
||||||
this.pdfDocument = pdfDocument;
|
|
||||||
if (!pdfDocument) {
|
|
||||||
return Promise.resolve();
|
|
||||||
}
|
|
||||||
|
|
||||||
return pdfDocument.getPage(1).then(function (firstPage) {
|
|
||||||
var pagesCount = pdfDocument.numPages;
|
|
||||||
var viewport = firstPage.getViewport(1.0);
|
|
||||||
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
|
|
||||||
var thumbnail = new ThumbnailView(this.container, pageNum,
|
|
||||||
viewport.clone(), this.linkService,
|
|
||||||
this.renderingQueue);
|
|
||||||
this.thumbnails.push(thumbnail);
|
|
||||||
}
|
|
||||||
}.bind(this));
|
|
||||||
},
|
|
||||||
|
|
||||||
/**
|
|
||||||
* @param {PDFPageView} pageView
|
|
||||||
* @returns {PDFPage}
|
|
||||||
* @private
|
|
||||||
*/
|
|
||||||
_ensurePdfPageLoaded: function (thumbView) {
|
|
||||||
if (thumbView.pdfPage) {
|
|
||||||
return Promise.resolve(thumbView.pdfPage);
|
|
||||||
}
|
|
||||||
var pageNumber = thumbView.id;
|
|
||||||
if (this._pagesRequests[pageNumber]) {
|
|
||||||
return this._pagesRequests[pageNumber];
|
|
||||||
}
|
|
||||||
var promise = this.pdfDocument.getPage(pageNumber).then(
|
|
||||||
function (pdfPage) {
|
|
||||||
thumbView.setPdfPage(pdfPage);
|
|
||||||
this._pagesRequests[pageNumber] = null;
|
|
||||||
return pdfPage;
|
|
||||||
}.bind(this));
|
|
||||||
this._pagesRequests[pageNumber] = promise;
|
|
||||||
return promise;
|
|
||||||
},
|
|
||||||
|
|
||||||
ensureThumbnailVisible:
|
|
||||||
function PDFThumbnailViewer_ensureThumbnailVisible(page) {
|
|
||||||
// Ensure that the thumbnail of the current page is visible
|
|
||||||
// when switching from another view.
|
|
||||||
scrollIntoView(document.getElementById('thumbnailContainer' + page));
|
|
||||||
},
|
|
||||||
|
|
||||||
forceRendering: function () {
|
|
||||||
var visibleThumbs = this._getVisibleThumbs();
|
|
||||||
var thumbView = this.renderingQueue.getHighestPriority(visibleThumbs,
|
|
||||||
this.thumbnails,
|
|
||||||
this.scroll.down);
|
|
||||||
if (thumbView) {
|
|
||||||
this._ensurePdfPageLoaded(thumbView).then(function () {
|
|
||||||
this.renderingQueue.renderView(thumbView);
|
|
||||||
}.bind(this));
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
};
|
|
||||||
|
|
||||||
return PDFThumbnailViewer;
|
|
||||||
})();
|
|
||||||
|
|||||||
@ -74,6 +74,7 @@ http://sourceforge.net/adobe/cmap/wiki/License/
|
|||||||
<script src="annotations_layer_builder.js"></script>
|
<script src="annotations_layer_builder.js"></script>
|
||||||
<script src="pdf_viewer.js"></script>
|
<script src="pdf_viewer.js"></script>
|
||||||
<script src="thumbnail_view.js"></script>
|
<script src="thumbnail_view.js"></script>
|
||||||
|
<script src="pdf_thumbnail_viewer.js"></script>
|
||||||
<script src="document_outline_view.js"></script>
|
<script src="document_outline_view.js"></script>
|
||||||
<script src="document_attachments_view.js"></script>
|
<script src="document_attachments_view.js"></script>
|
||||||
<script src="pdf_find_bar.js"></script>
|
<script src="pdf_find_bar.js"></script>
|
||||||
|
|||||||
@ -85,6 +85,7 @@ var mozL10n = document.mozL10n || document.webL10n;
|
|||||||
//#include password_prompt.js
|
//#include password_prompt.js
|
||||||
//#include document_properties.js
|
//#include document_properties.js
|
||||||
//#include pdf_viewer.js
|
//#include pdf_viewer.js
|
||||||
|
//#include pdf_thumbnail_viewer.js
|
||||||
|
|
||||||
var PDFViewerApplication = {
|
var PDFViewerApplication = {
|
||||||
initialBookmark: document.location.hash.substring(1),
|
initialBookmark: document.location.hash.substring(1),
|
||||||
@ -1389,7 +1390,6 @@ var PDFViewerApplication = {
|
|||||||
window.PDFView = PDFViewerApplication; // obsolete name, using it as an alias
|
window.PDFView = PDFViewerApplication; // obsolete name, using it as an alias
|
||||||
//#endif
|
//#endif
|
||||||
|
|
||||||
//#include thumbnail_view.js
|
|
||||||
//#include document_outline_view.js
|
//#include document_outline_view.js
|
||||||
//#include document_attachments_view.js
|
//#include document_attachments_view.js
|
||||||
|
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user