Sakurai/pdf.js
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Making all link bookmark-able (ref #574, #428); removing always-changing hash

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notmasteryet 2011-10-01 13:54:37 -05:00
parent 846fc1755c
commit 381efa8a50
1 changed files with 59 additions and 16 deletions
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75
web/viewer.js
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@ -21,11 +21,13 @@ var Cache = function(size) {
};
var cache = new Cache(kCacheSize);
var currentPageNumber = 1;
var PDFView = {
pages: [],
thumbnails: [],
currentScale: kDefaultScale,
initialBookmark: document.location.hash.substring(1),
setScale: function(val, resetAutoSettings) {
var pages = this.pages;
@ -33,11 +35,8 @@ var PDFView = {
pages[i].update(val * kCssUnits);
this.currentScale = val;
if (document.location.hash == '#' + this.page)
this.pages[this.page - 1].draw();
else
// Jump the scroll position to the correct page.
document.location.hash = this.page;
this.pages[this.page - 1].scrollIntoView();
this.pages[this.page - 1].draw();
var event = document.createEvent('UIEvents');
event.initUIEvent('scalechange', false, false, window, 0);
@ -87,18 +86,18 @@ var PDFView = {
return;
}
document.location.hash = val;
currentPageNumber = val;
document.getElementById('previous').disabled = (val == 1);
document.getElementById('next').disabled = (val == pages.length);
if (input.value == val)
return;
if (input.value != val) {
input.value = val;
}
input.value = val;
pages[val - 1].draw();
pages[val - 1].scrollIntoView();
},
get page() {
return parseInt(document.location.hash.substring(1), 10) || 1;
return currentPageNumber;
},
open: function(url, scale) {
@ -137,6 +136,20 @@ var PDFView = {
}
},
getDestinationHash: function(dest) {
if (typeof dest === 'string')
return '#' + escape(dest);
if (dest instanceof Array) {
var destRef = dest[0]; // see nevigateTo method for dest format
var pageNumber = destRef instanceof Object ?
this.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] : (destRef + 1);
if (pageNumber) {
return '#page=' + pageNumber + '&dest=' + dest.slice(1).join(',');
}
}
return '';
},
error: function() {
var loadingIndicator = document.getElementById('loading');
loadingIndicator.innerHTML = 'Error';
@ -181,7 +194,7 @@ var PDFView = {
}
this.setScale(scale || kDefaultScale, true);
this.page = parseInt(document.location.hash.substring(1), 10) || 1;
this.pagesRefMap = pagesRefMap;
this.destinations = pdf.catalog.destinations;
if (pdf.catalog.documentOutline) {
@ -190,6 +203,28 @@ var PDFView = {
outlineSwitchButton.removeAttribute('disabled');
this.switchSidebarView('outline');
}
if (this.initialBookmark) {
this.setHash(this.initialBookmark);
this.initialBookmark = null;
}
else
this.page = 1;
},
setHash: function(hash) {
if (!hash)
return;
if (hash.indexOf('=') >= 0) {
// TODO more complex hashes, for now catching page=XX only
var m = /\bpage=(\d+)/.exec(hash);
if (m && m[1] > 0)
this.page = m[1];
} else if (/^\d+$/.test(hash)) // page number
this.page = hash;
else // named destination
PDFView.navigateTo(unescape(hash));
},
switchSidebarView: function(view) {
@ -274,6 +309,7 @@ var PageView = function(container, content, id, pageWidth, pageHeight,
function setupLinks(content, scale) {
function bindLink(link, dest) {
link.href = PDFView.getDestinationHash(dest);
link.onclick = function() {
if (dest)
PDFView.navigateTo(dest);
@ -296,6 +332,11 @@ var PageView = function(container, content, id, pageWidth, pageHeight,
}
this.scrollIntoView = function(dest) {
if (!dest) {
div.scrollIntoView(true);
return;
}
var x = 0, y = 0;
var width = 0, height = 0, widthScale, heightScale;
var scale = 0;
@ -405,6 +446,10 @@ var PageView = function(container, content, id, pageWidth, pageHeight,
var ThumbnailView = function(container, page, id, pageRatio) {
var anchor = document.createElement('a');
anchor.href = '#' + id;
anchor.onclick = function stopNivigation() {
PDFView.page = id;
return false;
};
var div = document.createElement('div');
div.id = 'thumbnailContainer' + id;
@ -452,7 +497,7 @@ var DocumentOutlineView = function(outline) {
var outlineView = document.getElementById('outlineView');
function bindItemLink(domObj, item) {
domObj.href = '';
domObj.href = PDFView.getDestinationHash(item.dest);
domObj.onclick = function(e) {
PDFView.navigateTo(item.dest);
return false;
@ -543,7 +588,7 @@ window.addEventListener('resize', function onscroll(evt) {
});
window.addEventListener('hashchange', function(evt) {
PDFView.page = PDFView.page;
PDFView.setHash(document.location.hash.substring(1));
});
window.addEventListener('change', function(evt) {
@ -569,7 +614,6 @@ window.addEventListener('change', function(evt) {
fileReader.readAsBinaryString(file);
document.title = file.name;
document.location.hash = 1;
}, true);
window.addEventListener('transitionend', function(evt) {
@ -621,7 +665,6 @@ window.addEventListener('scalechange', function scalechange(evt) {
window.addEventListener('pagechange', function pagechange(evt) {
var page = evt.detail;
document.location.hash = page;
document.getElementById('pageNumber').value = page;
document.getElementById('previous').disabled = (page == 1);
document.getElementById('next').disabled = (page == PDFView.pages.length);