Merge pull request #3505 from Snuffleupagus/move-ThumbnailView
Move ThumbnailView from viewer.js to its own file
This commit is contained in:
Brendan Dahl
commit
c17a7c9d04
191
web/thumbnail_view.js
Normal file
191
web/thumbnail_view.js
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@ -0,0 +1,191 @@
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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* globals PDFView, mozL10n, RenderingStates */
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'use strict';
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var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
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var anchor = document.createElement('a');
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anchor.href = PDFView.getAnchorUrl('#page=' + id);
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anchor.title = mozL10n.get('thumb_page_title', {page: id}, 'Page {{page}}');
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anchor.onclick = function stopNavigation() {
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PDFView.page = id;
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return false;
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};
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this.pdfPage = undefined;
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this.viewport = defaultViewport;
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this.pdfPageRotate = defaultViewport.rotate;
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this.rotation = 0;
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this.pageWidth = this.viewport.width;
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this.pageHeight = this.viewport.height;
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this.pageRatio = this.pageWidth / this.pageHeight;
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this.id = id;
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this.canvasWidth = 98;
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this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
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this.scale = (this.canvasWidth / this.pageWidth);
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var div = this.el = document.createElement('div');
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div.id = 'thumbnailContainer' + id;
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div.className = 'thumbnail';
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if (id === 1) {
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// Highlight the thumbnail of the first page when no page number is
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// specified (or exists in cache) when the document is loaded.
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div.classList.add('selected');
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}
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var ring = document.createElement('div');
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ring.className = 'thumbnailSelectionRing';
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ring.style.width = this.canvasWidth + 'px';
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ring.style.height = this.canvasHeight + 'px';
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div.appendChild(ring);
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anchor.appendChild(div);
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container.appendChild(anchor);
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this.hasImage = false;
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this.renderingState = RenderingStates.INITIAL;
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this.setPdfPage = function thumbnailViewSetPdfPage(pdfPage) {
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this.pdfPage = pdfPage;
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this.pdfPageRotate = pdfPage.rotate;
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this.viewport = pdfPage.getViewport(1);
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this.update();
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};
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this.update = function thumbnailViewUpdate(rot) {
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if (!this.pdfPage) {
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return;
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}
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if (rot !== undefined) {
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this.rotation = rot;
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}
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var totalRotation = (this.rotation + this.pdfPage.rotate) % 360;
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this.viewport = this.viewport.clone({
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scale: 1,
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rotation: totalRotation
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});
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this.pageWidth = this.viewport.width;
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this.pageHeight = this.viewport.height;
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this.pageRatio = this.pageWidth / this.pageHeight;
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this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
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this.scale = (this.canvasWidth / this.pageWidth);
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div.removeAttribute('data-loaded');
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ring.textContent = '';
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ring.style.width = this.canvasWidth + 'px';
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ring.style.height = this.canvasHeight + 'px';
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this.hasImage = false;
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this.renderingState = RenderingStates.INITIAL;
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this.resume = null;
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};
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this.getPageDrawContext = function thumbnailViewGetPageDrawContext() {
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var canvas = document.createElement('canvas');
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canvas.id = 'thumbnail' + id;
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canvas.width = this.canvasWidth;
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canvas.height = this.canvasHeight;
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canvas.className = 'thumbnailImage';
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canvas.setAttribute('aria-label', mozL10n.get('thumb_page_canvas',
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{page: id}, 'Thumbnail of Page {{page}}'));
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div.setAttribute('data-loaded', true);
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ring.appendChild(canvas);
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var ctx = canvas.getContext('2d');
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ctx.save();
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ctx.fillStyle = 'rgb(255, 255, 255)';
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ctx.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
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ctx.restore();
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return ctx;
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};
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this.drawingRequired = function thumbnailViewDrawingRequired() {
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return !this.hasImage;
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};
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this.draw = function thumbnailViewDraw(callback) {
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if (!this.pdfPage) {
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var promise = PDFView.getPage(this.id);
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promise.then(function(pdfPage) {
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this.setPdfPage(pdfPage);
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this.draw(callback);
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}.bind(this));
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return;
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}
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if (this.renderingState !== RenderingStates.INITIAL) {
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console.error('Must be in new state before drawing');
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}
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this.renderingState = RenderingStates.RUNNING;
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if (this.hasImage) {
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callback();
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return;
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}
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var self = this;
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var ctx = this.getPageDrawContext();
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var drawViewport = this.viewport.clone({ scale: this.scale });
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var renderContext = {
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canvasContext: ctx,
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viewport: drawViewport,
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continueCallback: function(cont) {
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if (PDFView.highestPriorityPage !== 'thumbnail' + self.id) {
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self.renderingState = RenderingStates.PAUSED;
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self.resume = function() {
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self.renderingState = RenderingStates.RUNNING;
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cont();
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};
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return;
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}
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cont();
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}
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};
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this.pdfPage.render(renderContext).then(
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function pdfPageRenderCallback() {
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self.renderingState = RenderingStates.FINISHED;
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callback();
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},
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function pdfPageRenderError(error) {
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self.renderingState = RenderingStates.FINISHED;
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callback();
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}
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);
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this.hasImage = true;
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};
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this.setImage = function thumbnailViewSetImage(img) {
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if (this.hasImage || !img)
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return;
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this.renderingState = RenderingStates.FINISHED;
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var ctx = this.getPageDrawContext();
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ctx.drawImage(img, 0, 0, img.width, img.height,
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0, 0, ctx.canvas.width, ctx.canvas.height);
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this.hasImage = true;
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};
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};
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@ -60,6 +60,7 @@ limitations under the License.
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<!--#if !PRODUCTION-->
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<script type="text/javascript" src="ui_utils.js"></script>
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<script type="text/javascript" src="download_manager.js"></script>
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<script type="text/javascript" src="thumbnail_view.js"></script>
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<script type="text/javascript" src="text_layer_builder.js"></script>
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<script type="text/javascript" src="pdf_find_bar.js"></script>
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<script type="text/javascript" src="pdf_find_controller.js"></script>
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176
web/viewer.js
176
web/viewer.js
@ -17,7 +17,7 @@
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/* globals PDFJS, PDFBug, FirefoxCom, Stats, Cache, PDFFindBar, CustomStyle,
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PDFFindController, ProgressBar, TextLayerBuilder, DownloadManager,
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getFileName, getOutputScale, scrollIntoView, getPDFFileNameFromURL,
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PDFHistory, noContextMenuHandler */
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PDFHistory, ThumbnailView, noContextMenuHandler */
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'use strict';
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@ -2068,179 +2068,7 @@ var PageView = function pageView(container, id, scale,
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};
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};
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var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
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var anchor = document.createElement('a');
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anchor.href = PDFView.getAnchorUrl('#page=' + id);
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anchor.title = mozL10n.get('thumb_page_title', {page: id}, 'Page {{page}}');
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anchor.onclick = function stopNavigation() {
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PDFView.page = id;
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return false;
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};
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this.pdfPage = undefined;
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this.viewport = defaultViewport;
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this.pdfPageRotate = defaultViewport.rotate;
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this.rotation = 0;
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this.pageWidth = this.viewport.width;
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this.pageHeight = this.viewport.height;
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this.pageRatio = this.pageWidth / this.pageHeight;
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this.id = id;
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this.canvasWidth = 98;
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this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
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this.scale = (this.canvasWidth / this.pageWidth);
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var div = this.el = document.createElement('div');
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div.id = 'thumbnailContainer' + id;
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div.className = 'thumbnail';
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if (id === 1) {
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// Highlight the thumbnail of the first page when no page number is
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// specified (or exists in cache) when the document is loaded.
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div.classList.add('selected');
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}
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var ring = document.createElement('div');
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ring.className = 'thumbnailSelectionRing';
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ring.style.width = this.canvasWidth + 'px';
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ring.style.height = this.canvasHeight + 'px';
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div.appendChild(ring);
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anchor.appendChild(div);
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container.appendChild(anchor);
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this.hasImage = false;
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this.renderingState = RenderingStates.INITIAL;
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this.setPdfPage = function thumbnailViewSetPdfPage(pdfPage) {
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this.pdfPage = pdfPage;
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this.pdfPageRotate = pdfPage.rotate;
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this.viewport = pdfPage.getViewport(1);
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this.update();
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};
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this.update = function thumbnailViewUpdate(rot) {
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if (!this.pdfPage) {
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return;
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}
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if (rot !== undefined) {
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this.rotation = rot;
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}
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var totalRotation = (this.rotation + this.pdfPage.rotate) % 360;
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this.viewport = this.viewport.clone({
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scale: 1,
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rotation: totalRotation
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});
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this.pageWidth = this.viewport.width;
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this.pageHeight = this.viewport.height;
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this.pageRatio = this.pageWidth / this.pageHeight;
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this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
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this.scale = (this.canvasWidth / this.pageWidth);
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div.removeAttribute('data-loaded');
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ring.textContent = '';
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ring.style.width = this.canvasWidth + 'px';
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ring.style.height = this.canvasHeight + 'px';
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this.hasImage = false;
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this.renderingState = RenderingStates.INITIAL;
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this.resume = null;
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};
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this.getPageDrawContext = function thumbnailViewGetPageDrawContext() {
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var canvas = document.createElement('canvas');
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canvas.id = 'thumbnail' + id;
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canvas.width = this.canvasWidth;
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canvas.height = this.canvasHeight;
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canvas.className = 'thumbnailImage';
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canvas.setAttribute('aria-label', mozL10n.get('thumb_page_canvas',
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{page: id}, 'Thumbnail of Page {{page}}'));
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div.setAttribute('data-loaded', true);
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ring.appendChild(canvas);
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var ctx = canvas.getContext('2d');
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ctx.save();
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ctx.fillStyle = 'rgb(255, 255, 255)';
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ctx.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
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ctx.restore();
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return ctx;
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};
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this.drawingRequired = function thumbnailViewDrawingRequired() {
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return !this.hasImage;
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};
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this.draw = function thumbnailViewDraw(callback) {
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if (!this.pdfPage) {
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var promise = PDFView.getPage(this.id);
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promise.then(function(pdfPage) {
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this.setPdfPage(pdfPage);
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this.draw(callback);
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}.bind(this));
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return;
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}
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if (this.renderingState !== RenderingStates.INITIAL) {
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console.error('Must be in new state before drawing');
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}
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this.renderingState = RenderingStates.RUNNING;
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if (this.hasImage) {
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callback();
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return;
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}
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var self = this;
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var ctx = this.getPageDrawContext();
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var drawViewport = this.viewport.clone({ scale: this.scale });
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var renderContext = {
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canvasContext: ctx,
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viewport: drawViewport,
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continueCallback: function(cont) {
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if (PDFView.highestPriorityPage !== 'thumbnail' + self.id) {
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self.renderingState = RenderingStates.PAUSED;
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self.resume = function() {
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self.renderingState = RenderingStates.RUNNING;
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cont();
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};
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return;
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}
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cont();
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}
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};
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this.pdfPage.render(renderContext).then(
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function pdfPageRenderCallback() {
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self.renderingState = RenderingStates.FINISHED;
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callback();
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},
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function pdfPageRenderError(error) {
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self.renderingState = RenderingStates.FINISHED;
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callback();
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}
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);
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this.hasImage = true;
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};
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this.setImage = function thumbnailViewSetImage(img) {
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if (this.hasImage || !img)
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return;
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this.renderingState = RenderingStates.FINISHED;
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var ctx = this.getPageDrawContext();
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ctx.drawImage(img, 0, 0, img.width, img.height,
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0, 0, ctx.canvas.width, ctx.canvas.height);
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this.hasImage = true;
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};
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};
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//#include thumbnail_view.js
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//#include text_layer_builder.js
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var DocumentOutlineView = function documentOutlineView(outline) {
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Block a user