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https://github.com/Yetangitu/owncloud-apps.git
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files_reade: working towards working search, W.I.P.
This commit is contained in:
frankdelange
parent
2dd54dd028
commit
4b31f04330
14 changed files with 580 additions and 173 deletions
143
files_reader/vendor/pdfjs/pdf.reader.js
vendored
143
files_reader/vendor/pdfjs/pdf.reader.js
vendored
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@ -41,6 +41,7 @@ PDFJS.Reader = function(bookPath, _options) {
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cssZoomOnly: false, // true || false, only zoom using CSS, render document at 100% size
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textSelect: false, // true || false, add selectable text layer
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doubleBuffer: true, // true || false, draw to off-screen canvas
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cacheNext: true, // true || false, pre-render next page (by creathing thumbnail))
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numPages: 0,
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currentPage: 1,
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scale: DEFAULT_SCALE,
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@ -106,9 +107,6 @@ PDFJS.Reader = function(bookPath, _options) {
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canvas: document.getElementById("left"),
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ctx: document.getElementById("left").getContext('2d'),
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textdiv: document.getElementById("text_left"),
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cache_canvas: null,
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cache_ctx: null,
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cache_textdiv: null,
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textLayer: null,
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renderTask: null,
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oscanvas: null,
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@ -119,9 +117,6 @@ PDFJS.Reader = function(bookPath, _options) {
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canvas: document.getElementById("right"),
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ctx: document.getElementById("right").getContext('2d'),
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textdiv: document.getElementById("text_right"),
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cache_canvas: null,
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cache_ctx: null,
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cache_textdiv: null,
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textLayer: null,
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renderTask: null,
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oscanvas: null,
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@ -194,6 +189,9 @@ PDFJS.Reader = function(bookPath, _options) {
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reader.settings.currentPage = parseInt(reader.settings.session.cursor.anchor);
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}
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var firstPagePromise = book.getPage(1);
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reader.firstPagePromise = firstPagePromise;
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// set labels
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reader.book.getPageLabels().then(function (labels) {
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if (labels) {
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@ -228,7 +226,7 @@ PDFJS.Reader = function(bookPath, _options) {
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// BookmarksController depends on NotesController so load NotesController first
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//reader.NotesController = PDFJS.reader.NotesController.call(reader, book);
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//reader.BookmarksController = PDFJS.reader.BookmarksController.call(reader, book);
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//reader.SearchController = PDFJS.reader.SearchController.call(reader, book);
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reader.SearchController = PDFJS.reader.SearchController.call(reader, book);
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//reader.MetaController = PDFJS.reader.MetaController.call(reader, meta);
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reader.TocController = PDFJS.reader.TocController.call(reader, book);
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},
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@ -270,58 +268,61 @@ PDFJS.Reader.prototype.getThumb = function (pageNum, insert) {
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renderContext,
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renderTask;
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reader.book.getPage(parseInt(pageNum)).then(function(page) {
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page_rotation = page.rotate;
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rotation = (page_rotation + reader.settings.rotation) % 360;
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initial_viewport = page.getViewport(1, rotation);
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canvas = document.createElement("canvas");
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ctx = canvas.getContext("2d");
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outputscale = reader.getOutputScale(ctx);
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if (outputscale < 1)
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outputscale = 1; // ignore browser zoom
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page_width = initial_viewport.width;
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page_height = initial_viewport.height;
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page_aspect = parseFloat(page_width / page_height);
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scale = parseFloat(reader.settings.thumbnailWidth / page_width);
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canvas.width = parseInt(reader.settings.thumbnailWidth * outputscale);
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canvas.height = parseInt(canvas.width / page_aspect);
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if (reader.thumbs[pageNum] === undefined) {
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viewport = initial_viewport.clone({scale: scale, rotation: rotation});
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reader.thumbs[pageNum] = true;
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//ctx.scale(outputscale, outputscale);
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transform = (outputscale === 1)
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? null
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: [outputscale, 0, 0, outputscale, 0, 0];
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reader.book.getPage(parseInt(pageNum)).then(function(page) {
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page_rotation = page.rotate;
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rotation = (page_rotation + reader.settings.rotation) % 360;
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initial_viewport = page.getViewport(1, rotation);
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canvas = document.createElement("canvas");
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ctx = canvas.getContext("2d");
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outputscale = reader.getOutputScale(ctx);
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if (outputscale < 1)
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outputscale = 1; // ignore browser zoom
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page_width = initial_viewport.width;
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page_height = initial_viewport.height;
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page_aspect = parseFloat(page_width / page_height);
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scale = parseFloat(reader.settings.thumbnailWidth / page_width);
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canvas.width = parseInt(reader.settings.thumbnailWidth * outputscale);
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canvas.height = parseInt(canvas.width / page_aspect);
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console.log("thumbs, canvas w*h " + canvas.width + "*" + canvas.height);
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viewport = initial_viewport.clone({scale: scale, rotation: rotation});
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renderContext = {
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canvasContext: ctx,
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viewport: viewport,
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transform: transform
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};
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//ctx.scale(outputscale, outputscale);
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transform = (outputscale === 1)
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? null
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: [outputscale, 0, 0, outputscale, 0, 0];
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renderTask = page.render(renderContext);
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renderContext = {
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canvasContext: ctx,
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viewport: viewport,
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transform: transform
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};
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renderTask.promise.then(
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function pdfPageRenderCallback () {
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thumb = new Image();
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thumb.id = "thumb_" + pageNum;
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thumb.className = "thumbnail";
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thumb.src = canvas.toDataURL();
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canvas.width = canvas.height = 0;
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delete canvas;
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if (insert) {
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reader.TocController.tocInsert(thumb, pageNum, true);
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} else {
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reader.thumbs[pageNum] = thumb;
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renderTask = page.render(renderContext);
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renderTask.promise.then(
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function pdfPageRenderCallback () {
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thumb = new Image();
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thumb.id = "thumb_" + pageNum;
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thumb.className = "thumbnail";
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thumb.src = canvas.toDataURL();
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canvas.width = canvas.height = 0;
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delete canvas;
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if (insert) {
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reader.TocController.tocInsert(thumb, pageNum, true);
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} else {
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reader.thumbs[pageNum] = thumb;
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}
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},
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function pdfPageRenderError (error) {
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console.log("pdfPageRenderError in getThumb: " + error);
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}
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},
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function pdfPageRenderError (error) {
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console.log("pdfPageRenderError in getThumb: " + error);
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}
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);
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});
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);
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});
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}
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};
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PDFJS.Reader.prototype.setZoom = function(zoom) {
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@ -366,7 +367,6 @@ PDFJS.Reader.prototype.cancelRender = function (index) {
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resourcelst = reader.resourcelst[index];
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if (resourcelst.renderTask) {
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console.log("cancel render on canvas " + index + ", pageNum " + resourcelst.pageNum);
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resourcelst.renderTask.cancel();
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resourcelst.renderTask = resourcelst.pageNum = null;
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resourcelst.oscanvas = resourcelst.osctx = null;
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@ -378,7 +378,7 @@ PDFJS.Reader.prototype.cancelRender = function (index) {
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}
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};
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PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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PDFJS.Reader.prototype.renderPage = function(pageNum) {
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var reader = this,
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$viewer = $("#viewer");
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@ -410,7 +410,9 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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renderContext,
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renderTask,
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resourcelst,
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swap_orientation;
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swap_orientation,
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double_buffer,
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cache_next;
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max_view_width = window.innerWidth;
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max_view_height = window.innerHeight;
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@ -447,6 +449,8 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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textdiv = resourcelst.textdiv;
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outputscale = reader.getOutputScale(resourcelst.ctx);
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fraction = reader.approximateFraction(outputscale);
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double_buffer = reader.settings.doubleBuffer;
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cache_next = reader.settings.cacheNext;
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if (pageNum <= this.settings.numPages && pageNum >= 1) {
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@ -545,7 +549,6 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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viewport = initial_viewport.clone({scale: scale, rotation: rotation});
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if (reader.settings.cssZoomOnly) {
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console.log("css zoom only");
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var actualSizeViewport = viewport.clone({scale: 1});
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canvas.width = actualSizeViewport.width;
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canvas.height = actualSizeViewport.height;
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@ -554,12 +557,10 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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}
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if (reader.settings.canvasLimit > 0) {
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console.log("canvas is limited");
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var pixelsInViewport = viewport.width * viewport.height;
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var maxscale =
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Math.sqrt(reader.settings.canvasLimit / pixelsInViewport);
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if (outputscale > maxscale) {
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console.log("outputscale: " + outputscale, "maxscale: " + maxscale);
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outputscale = maxscale;
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reader.output_scaled = true;
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reader.restricted_scaling = true;
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@ -608,7 +609,7 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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/* /textLayer */
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if (reader.settings.doubleBuffer) {
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if (double_buffer) {
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resourcelst.oscanvas = oscanvas = document.createElement("canvas");
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resourcelst.osctx = context = osctx = oscanvas.getContext('2d');
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oscanvas.width = canvas.width;
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@ -629,14 +630,13 @@ PDFJS.Reader.prototype.renderPage = function(pageNum, cache_result) {
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renderTask.promise.then(
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function pdfPageRenderCallback (something) {
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if (reader.cancelPage[pageNum] === undefined) {
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console.log("finished rendering page " + pageNum);
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if (reader.settings.doubleBuffer)
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if (double_buffer)
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ctx.drawImage(oscanvas, 0, 0);
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if (textLayer)
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textLayer.render(reader.settings.textRenderDelay);
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} else {
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console.log("rendering page " + pageNum + " finished but cancelled");
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}
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if (cache_next)
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reader.getThumb(parseInt(pageNum + pageShift), true);
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}
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},
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function pdfPageRenderError(error) {
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console.log("pdfPageRenderError: " + error);
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@ -672,8 +672,6 @@ PDFJS.Reader.prototype.queuePage = function(page) {
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page -= (page + 1) % 2;
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}
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console.log("page: " + page);
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} else {
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pageShift = 1;
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}
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@ -933,3 +931,16 @@ PDFJS.Reader.prototype.cachedPageNum = function (pageRef) {
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return (reader.pageRefs[reader.pageRefStr(pageRef)])
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|| null;
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};
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PDFJS.Reader.prototype.getPageTextContent = function (pageIndex) {
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var reader = this,
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book = reader.book;
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return book.getPage(pageIndex + 1).then(function (page) {
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return page.getTextContent({
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normalizeWhitespace: true,
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});
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});
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};
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