function BookReader() {
this.reduce = 4;
- this.padding = 10;
+ this.padding = 0;
this.mode = 1; //1, 2, 3
this.ui = 'full'; // UI mode
this.twoPagePopUp = null;
this.leafEdgeTmp = null;
this.embedPopup = null;
- this.popup = null;
+ this.printPopup = null;
this.searchTerm = '';
this.searchResults = {};
this.lastDisplayableIndex2up = null;
// We link to index.php to avoid redirect which breaks back button
+ // Should be overriden (before init) by custom implmentations.
this.logoURL = 'http://www.archive.org/index.php';
- // Base URL for images
+ // Base URL for UI images - should be overriden (before init) by
+ // custom implementations.
+ // $$$ This is the same directory as the images referenced by relative
+ // path in the CSS. Would be better to automagically find that path.
this.imagesBaseURL = '/bookreader/images/';
// Mode constants
// Object to hold parameters related to 2up mode
this.twoPage = {
- coverInternalPadding: 10, // Width of cover
- coverExternalPadding: 10, // Padding outside of cover
- bookSpineDivWidth: 30, // Width of book spine $$$ consider sizing based on book length
+ coverInternalPadding: 0, // Width of cover
+ coverExternalPadding: 0, // Padding outside of cover
+ bookSpineDivWidth: 0, // Width of book spine $$$ consider sizing based on book length
autofit: 'auto'
};
- // Text-to-Speech params
- this.ttsIndex = null; //leaf index
- this.ttsPosition = -1; //chunk (paragraph) number
- this.ttsBuffering = false;
- this.ttsPoller = null;
-
return this;
};
// Find start index and mode if set in location hash
var params = this.paramsFromFragment(window.location.hash);
+
+ // Sanitize/process parameters
+
+ if ( !this.canSwitchToMode( this.mode ) ) {
+ this.mode = this.constMode1up;
+ }
if ('undefined' != typeof(params.index)) {
startIndex = params.index;
} else if ('undefined' != typeof(params.page)) {
startIndex = this.getPageIndex(params.page);
}
-
+
if ('undefined' == typeof(startIndex)) {
if ('undefined' != typeof(this.titleLeaf)) {
- startIndex = this.leafNumToIndex(this.titleLeaf);
+ // title leaf is known - but only use as default if book has a few pages
+ if (this.numLeafs > 2) {
+ startIndex = this.leafNumToIndex(this.titleLeaf);
+ }
}
}
// search engine visibility
document.title = this.shortTitle(50);
- // Sanitize parameters
- if ( !this.canSwitchToMode( this.mode ) ) {
- this.mode = this.constMode1up;
- }
-
$("#BookReader").empty();
this.initToolbar(this.mode, this.ui); // Build inside of toolbar div
top: top+'px',
height: this.twoPage.height +'px', // $$$ height forced the same for both pages
width: this.twoPage.scaledWL + 'px',
- borderRight: '1px solid black',
zIndex: 2
}).appendTo('#BRtwopageview');
top: top+'px',
height: this.twoPage.height + 'px', // $$$ height forced the same for both pages
width: this.twoPage.scaledWR + 'px',
- borderLeft: '1px solid black',
zIndex: 2
}).appendTo('#BRtwopageview');
this.removeSearchHilites();
this.mode = mode;
- this.switchToolbarMode(mode);
+ //this.switchToolbarMode(mode);
// reinstate scale if moving from thumbnail view
if (this.pageScale != this.reduce) {
this.reduce = this.quantizeReduce(this.reduce, this.onePage.reductionFactors);
this.prepareOnePageView();
} else if (3 == mode) {
+ $('button.thumb').hide();
+ $('button.twopg').show();
this.reduce = this.quantizeReduce(this.reduce, this.reductionFactors);
this.prepareThumbnailView();
} else {
// $$$ why don't we save autofit?
- this.twoPage.autofit = null; // Take zoom level from other mode
+ // this.twoPage.autofit = null; // Take zoom level from other mode
this.twoPageCalculateReductionFactors();
this.reduce = this.quantizeReduce(this.reduce, this.twoPage.reductionFactors);
+ $('button.thumb').show();
+ $('button.twopg').hide();
this.prepareTwoPageView();
this.twoPageCenterView(0.5, 0.5); // $$$ TODO preserve center
}
height: this.twoPage.bookCoverDivHeight+'px',
visibility: 'visible',
position: 'absolute',
+ backgroundColor: 'transparent',
+ /* XXXmang move to CSS */
+ backgroundImage: 'url(images/back_pages.png)',
left: this.twoPage.bookCoverDivLeft + 'px',
- top: this.twoPage.bookCoverDivTop+'px'
+ top: this.twoPage.bookCoverDivTop+'px',
+ MozBoxShadow: '0 0 2px #000',
+ WebkitBoxShadow: '0 0 2px #000'
}).appendTo('#BRtwopageview');
this.leafEdgeR = document.createElement('div');
top: this.twoPageFlipAreaTop() + 'px',
cursor: 'w-resize',
zIndex: 100
- }).bind('click', function(e) {
+ }).click(function(e) {
self.left();
}).bind('mousedown', function(e) {
e.preventDefault();
top: this.twoPageFlipAreaTop() + 'px',
cursor: 'e-resize',
zIndex: 100
- }).bind('click', function(e) {
+ }).click(function(e) {
self.right();
}).bind('mousedown', function(e) {
e.preventDefault();
this.twoPagePopUp = document.createElement('div');
this.twoPagePopUp.className = 'BRtwoPagePopUp';
$(this.twoPagePopUp).css({
- zIndex: '1000'
+ zIndex: '1000',
+ // XXXmang move to CSS
+ padding: '6px',
+ position: 'absolute',
+ fontFamily: 'Arial,sans-serif',
+ fontSize: '11px',
+ color: 'white',
+ zIndex: '1000',
+ backgroundColor: '#939598',
+ opacity: 0.85,
+ webkitBorderRadius: '4px',
+ mozBorderRadius: '4px',
+ borderRadius: '4px',
+ whiteSpace: 'nowrap'
}).appendTo('#BRcontainer');
$(this.twoPagePopUp).hide();
// $$$ TODO: Make sure popup is positioned so that it is in view
// (https://bugs.edge.launchpad.net/gnubook/+bug/327456)
$(e.data.twoPagePopUp).css({
- left: e.pageX- $('#BRcontainer').offset().left + $('#BRcontainer').scrollLeft() + 20 + 'px',
+ left: e.pageX- $('#BRcontainer').offset().left + $('#BRcontainer').scrollLeft() - 100 + 'px',
top: e.pageY - $('#BRcontainer').offset().top + $('#BRcontainer').scrollTop() + 'px'
});
});
// $$$ TODO: Make sure popup is positioned so that it is in view
// (https://bugs.edge.launchpad.net/gnubook/+bug/327456)
$(e.data.twoPagePopUp).css({
- left: e.pageX - $('#BRcontainer').offset().left + $('#BRcontainer').scrollLeft() - $(e.data.twoPagePopUp).width() - 25 + 'px',
+ left: e.pageX - $('#BRcontainer').offset().left + $('#BRcontainer').scrollLeft() - $(e.data.twoPagePopUp).width() + 100 + 'px',
top: e.pageY-$('#BRcontainer').offset().top + $('#BRcontainer').scrollTop() + 'px'
});
});
top: top+'px',
height: this.twoPage.height,
width: scaledW+'px',
- borderRight: '1px solid black',
+ borderRight: '1px solid black', // XXXmang check
zIndex: 1
}
right: '',
top: top+'px',
height: this.twoPage.height,
- width: '0px',
- borderLeft: '1px solid black',
+ borderLeft: '1px solid black', // XXXmang check
+ width: '0',
zIndex: 2
}
top: top+'px',
height: this.twoPage.height,
width: scaledW+'px',
- borderLeft: '1px solid black',
zIndex: 1
});
top: top+'px',
height: this.twoPage.height,
width: 0+'px', // Start at 0 width, then grow to the left
- borderRight: '1px solid black',
zIndex: 2
});
//console.log('appending ' + key);
}
- this.setHilightCss2UP(result.div, key, result.l, result.r, result.t, result.b);
+ // We calculate the reduction factor for the specific page because it can be different
+ // for each page in the spread
+ var height = this._getPageHeight(key);
+ var width = this._getPageWidth(key)
+ var reduce = this.twoPage.height/height;
+ var scaledW = parseInt(width*reduce);
+
+ var gutter = this.twoPageGutter();
+ var pageL;
+ if ('L' == this.getPageSide(key)) {
+ pageL = gutter-scaledW;
+ } else {
+ pageL = gutter;
+ }
+ var pageT = this.twoPageTop();
+
+ $(result.div).css({
+ width: (result.r-result.l)*reduce + 'px',
+ height: (result.b-result.t)*reduce + 'px',
+ left: pageL+(result.l)*reduce + 'px',
+ top: pageT+(result.t)*reduce +'px'
+ });
} else {
//console.log(key + ' not displayed');
}
}
-// setHilightCss2UP()
-//______________________________________________________________________________
-//position calculation shared between search and text-to-speech functions
-BookReader.prototype.setHilightCss2UP = function(div, index, left, right, top, bottom) {
-
- // We calculate the reduction factor for the specific page because it can be different
- // for each page in the spread
- var height = this._getPageHeight(index);
- var width = this._getPageWidth(index)
- var reduce = this.twoPage.height/height;
- var scaledW = parseInt(width*reduce);
-
- var gutter = this.twoPageGutter();
- var pageL;
- if ('L' == this.getPageSide(index)) {
- pageL = gutter-scaledW;
- } else {
- pageL = gutter;
- }
- var pageT = this.twoPageTop();
-
- $(div).css({
- width: (right-left)*reduce + 'px',
- height: (bottom-top)*reduce + 'px',
- left: pageL+left*reduce + 'px',
- top: pageT+top*reduce +'px'
- });
-}
-
// removeSearchHilites()
//______________________________________________________________________________
BookReader.prototype.removeSearchHilites = function() {
// showEmbedCode()
//______________________________________________________________________________
BookReader.prototype.showEmbedCode = function() {
- if (null != this.embedPopup) { // check if already showing
- return;
- }
- this.autoStop();
this.embedPopup = document.createElement("div");
$(this.embedPopup).css({
position: 'absolute',
- top: '20px',
+ top: ($('#BRcontainer').attr('clientHeight')-250)/2 + 'px',
left: ($('#BRcontainer').attr('clientWidth')-400)/2 + 'px',
width: '400px',
- padding: "20px",
- border: "3px double #999999",
- zIndex: 3,
- backgroundColor: "#fff"
+ height: '250px',
+ padding: '0',
+ fontSize: '12px',
+ color: '#333',
+ zIndex: 300,
+ border: '10px solid #615132',
+ backgroundColor: "#fff",
+ MozBorderRadius: '8px',
+ MozBoxShadow: '0 0 6px #000',
+ WebkitBorderRadius: '8px',
+ WebkitBoxShadow: '0 0 6px #000'
}).appendTo('#BookReader');
- htmlStr = '<p style="text-align:center;"><b>Embed Bookreader in your blog!</b></p>';
- htmlStr += '<p>The bookreader uses iframes for embedding. It will not work on web hosts that block iframes. The embed feature has been tested on blogspot.com blogs as well as self-hosted Wordpress blogs. This feature will NOT work on wordpress.com blogs.</p>';
- htmlStr += '<p>Embed Code: <input type="text" size="40" value="' + this.getEmbedCode() + '"></p>';
- htmlStr += '<p style="text-align:center;"><a href="" onclick="br.embedPopup = null; $(this.parentNode.parentNode).remove(); return false">Close popup</a></p>';
+ htmlStr = '<h3 style="background:#615132;padding:10px;margin:0 0 10px;color:#fff;">Embed Bookreader</h3>';
+ htmlStr += '<p style="padding:10px;line-height:18px;">The bookreader uses iframes for embedding. It will not work on web hosts that block iframes. The embed feature has been tested on blogspot.com blogs as well as self-hosted Wordpress blogs. This feature will NOT work on wordpress.com blogs.</p>';
+ htmlStr += '<textarea rows="2" cols="40" style="margin-left:10px;width:368px;height:40px;color:#333;font-size:12px;border:2px inset #ccc;background:#efefef;padding:2px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;">' + this.getEmbedCode() + '</textarea>';
+ htmlStr += '<a href="javascript:;" class="popOff" onclick="$(this.parentNode).remove();$(\'.coverUp\').hide();return false" style="color:#999;"><span>Close</span></a>';
this.embedPopup.innerHTML = htmlStr;
- $(this.embedPopup).find('input').bind('click', function() {
+ $('#BookReader').append('<div class="coverUp" style="position:absolute;z-index:299;width:100%;height:100%;background:#000;opacity:.4;filter:alpha(opacity=40);" onclick="$(\'.popped\').hide();$(this).hide();"></div>');
+ $(this.embedPopup).find('textarea').click(function() {
this.select();
})
+ $(this.embedPopup).addClass("popped");
}
+// showBookmarkCode()
+//______________________________________________________________________________
+BookReader.prototype.showBookmarkCode = function() {
+ this.bookmarkPopup = document.createElement("div");
+ $(this.bookmarkPopup).css({
+ position: 'absolute',
+ top: ($('#BRcontainer').attr('clientHeight')-250)/2 + 'px',
+ left: ($('#BRcontainer').attr('clientWidth')-400)/2 + 'px',
+ width: '400px',
+ height: '250px',
+ padding: '0',
+ fontSize: '12px',
+ color: '#333',
+ zIndex: 300,
+ border: '10px solid #615132',
+ backgroundColor: "#fff",
+ MozBorderRadius: '8px',
+ MozBoxShadow: '0 0 6px #000',
+ WebkitBorderRadius: '8px',
+ WebkitBoxShadow: '0 0 6px #000'
+ }).appendTo('#BookReader');
+
+ htmlStr = '<h3 style="background:#615132;padding:10px;margin:0 0 10px;color:#fff;">Add a bookmark</h3>';
+ htmlStr += '<p style="padding:10px;line-height:18px;">You can add a bookmark to any page in any book. If you elect to make your bookmark public, other readers will be able to see it. <em>You must be logged in to your <a href="">Open Library account</a> to add bookmarks.</em></p>';
+ htmlStr += '<form name="bookmark" id="bookmark" style="line-height:20px;margin-left:10px;"><label style="padding-bottom"10px;><input type="radio" name="privacy" id="p2" disabled="disabled" checked="checked"/> Make this bookmark public.</label><br/><label style="padding-bottom:10px;"><input type="radio" name="privacy" id="p1" disabled="disabled"/> Keep this bookmark private.</label><br/><br/><button type="submit" style="font-size:20px;" disabled="disabled">Add a bookmark</button></form>';
+ htmlStr += '<a href="javascript:;" class="popOff" onclick="$(this.parentNode).remove();$(\'.coverUp\').hide();return false;" style="color:#999;"><span>Close</span></a>';
+
+ this.bookmarkPopup.innerHTML = htmlStr;
+ $('#BookReader').append('<div class="coverUp" style="position:absolute;z-index:299;width:100%;height:100%;background:#000;opacity:.4;filter:alpha(opacity=40);" onclick="$(\'.popped\').hide();$(this).hide();"></div>');
+ $(this.bookmarkPopup).find('textarea').click(function() {
+ this.select();
+ })
+ $(this.bookmarkPopup).addClass("popped");
+}
+
+
// autoToggle()
//______________________________________________________________________________
BookReader.prototype.autoToggle = function() {
BookReader.prototype.initToolbar = function(mode, ui) {
- $("#BookReader").append("<div id='BRtoolbar'>"
- + "<span id='BRtoolbarbuttons' style='float: right'>"
- + "<button class='BRicon rollover read_aloud' onclick='br.ttsStart(); return false;'/>"
- + "<button class='BRicon print rollover' /> <button class='BRicon rollover embed' />"
- + "<form class='BRpageform' action='javascript:' onsubmit='br.jumpToPage(this.elements[0].value)'> <span class='label'>Page:<input id='BRpagenum' type='text' size='3' onfocus='br.autoStop();'></input></span></form>"
- + "<div class='BRtoolbarmode2' style='display: none'><button class='BRicon rollover book_leftmost' /><button class='BRicon rollover book_left' /><button class='BRicon rollover book_right' /><button class='BRicon rollover book_rightmost' /></div>"
- + "<div class='BRtoolbarmode1' style='display: none'><button class='BRicon rollover book_top' /><button class='BRicon rollover book_up' /> <button class='BRicon rollover book_down' /><button class='BRicon rollover book_bottom' /></div>"
- + "<div class='BRtoolbarmode3' style='display: none'><button class='BRicon rollover book_top' /><button class='BRicon rollover book_up' /> <button class='BRicon rollover book_down' /><button class='BRicon rollover book_bottom' /></div>"
- + "<button class='BRicon rollover play' /><button class='BRicon rollover pause' style='display: none' />"
+ $("body").append("<div id='BRtoolbar'>"
+ + "<span id='BRtoolbarbuttons' style='float:right;'>"
+ + "<button class='BRicon bookmark modal'></button>"
+ + "<button class='BRicon link modal'></button>"
+ + "<button class='BRicon embed modal'></button>"
+ + "<button class='BRicon read modal'></button>"
+ + "<button class='BRicon full'></button>"
+// + "<div class='BRtoolbarmode2' style='display: none'><button class='BRicon book_leftmost'></button><button class='BRicon book_left'></button><button class='BRicon book_right'></button><button class='BRicon book_rightmost'></button></div>"
+// + "<div class='BRtoolbarmode1' style='display: none'><button class='BRicon book_top'></button><button class='BRicon book_up'></button> <button class='BRicon book_down'></button><button class='BRicon book_bottom'></button></div>"
+// + "<div class='BRtoolbarmode3' style='display: none'><button class='BRicon book_top'></button><button class='BRicon book_up'></button> <button class='BRicon book_down'></button><button class='BRicon book_bottom'></button></div>"
+// + "<button class='BRicon play'></button><button class='BRicon pause' style='display: none'></button>"
+ "</span>"
+ "<span>"
- + "<a class='BRicon logo rollover' href='" + this.logoURL + "'> </a>"
- + " <button class='BRicon rollover zoom_out' onclick='br.zoom(-1); return false;'/>"
- + "<button class='BRicon rollover zoom_in' onclick='br.zoom(1); return false;'/>"
- + " <span class='label'>Zoom: <span id='BRzoom'>"+parseInt(100/this.reduce)+"</span></span>"
- + " <button class='BRicon rollover one_page_mode' onclick='br.switchMode(1); return false;'/>"
- + " <button class='BRicon rollover two_page_mode' onclick='br.switchMode(2); return false;'/>"
- + " <button class='BRicon rollover thumbnail_mode' onclick='br.switchMode(3); return false;'/>"
+ + "<a class='logo' href='" + this.logoURL + "'></a>"
+ + "<button class='BRicon glass'></button>"
+ /* XXXmang integrate search */
+ + "<form method='get' id='booksearch'><input type='search' id='textSrch' name='textSrch' val='' placeholder='Search'/><button type='submit' id='btnSrch' name='btnSrch'>GO</button></form>"
+ + "<button class='BRicon fit'></button>"
+ + "<button class='BRicon thumb' onclick='br.switchMode(3); return false;'></button>"
+ + "<button class='BRicon twopg' onclick='br.switchMode(2); return false;'></button>"
+ "</span>"
- + "<span id='#BRbooktitle'>"
- + " <a class='BRblack title' href='"+this.bookUrl+"' target='_blank'>"+this.bookTitle+"</a>"
- + "</span>"
+ "</div>");
this.updateToolbarZoom(this.reduce); // Pretty format
var titles = { '.logo': 'Go to Archive.org',
'.zoom_in': 'Zoom in',
'.zoom_out': 'Zoom out',
- '.one_page_mode': 'One-page view',
- '.two_page_mode': 'Two-page view',
- '.thumbnail_mode': 'Thumbnail view',
+ '.onepg': 'One-page view',
+ '.twopg': 'Two-page view',
+ '.thumb': 'Thumbnail view',
'.print': 'Print this page',
- '.embed': 'Embed bookreader',
+ '.embed': 'Embed BookReader',
+ '.link': 'Link to this book (and page)',
+ '.bookmark': 'Bookmark this page',
+ '.read': 'Allow BookReader to read this aloud',
+ '.full': 'Show fullscreen',
'.book_left': 'Flip left',
'.book_right': 'Flip right',
'.book_up': 'Page up',
// Hide mode buttons and autoplay if 2up is not available
// $$$ if we end up with more than two modes we should show the applicable buttons
if ( !this.canSwitchToMode(this.constMode2up) ) {
- jToolbar.find('.one_page_mode, .two_page_mode, .play, .pause').hide();
+ jToolbar.find('.two_page_mode, .play, .pause').hide();
+ }
+ if ( !this.canSwitchToMode(this.constModeThumb) ) {
+ jToolbar.find('.thumbnail_mode').hide();
+ }
+
+ // Hide one page button if it is the only mode available
+ if ( ! (this.canSwitchToMode(this.constMode2up) || this.canSwitchToMode(this.constModeThumb)) ) {
+ jToolbar.find('.one_page_mode').hide();
}
// Switch to requested mode -- binds other click handlers
- this.switchToolbarMode(mode);
+ //this.switchToolbarMode(mode);
}
var self = this; // closure
- jToolbar.find('.book_left').bind('click', function(e) {
+ jToolbar.find('.book_left').click(function(e) {
self.left();
return false;
});
- jToolbar.find('.book_right').bind('click', function(e) {
+ jToolbar.find('.book_right').click(function(e) {
self.right();
return false;
});
return false;
});
- jToolbar.find('.print').bind('click', function(e) {
+ jToolbar.find('.print').click(function(e) {
self.printPage();
return false;
});
- jToolbar.find('.embed').bind('click', function(e) {
+ jToolbar.find('.embed').click(function(e) {
self.showEmbedCode();
return false;
});
- jToolbar.find('.play').bind('click', function(e) {
+ jToolbar.find('.bookmark').click(function(e) {
+ self.showBookmarkCode();
+ return false;
+ });
+
+ jToolbar.find('.play').click(function(e) {
self.autoToggle();
return false;
});
- jToolbar.find('.pause').bind('click', function(e) {
+ jToolbar.find('.pause').click(function(e) {
self.autoToggle();
return false;
});
- jToolbar.find('.book_top').bind('click', function(e) {
+ jToolbar.find('.book_top').click(function(e) {
self.first();
return false;
});
- jToolbar.find('.book_bottom').bind('click', function(e) {
+ jToolbar.find('.book_bottom').click(function(e) {
self.last();
return false;
});
- jToolbar.find('.book_leftmost').bind('click', function(e) {
+ jToolbar.find('.book_leftmost').click(function(e) {
self.leftmost();
return false;
});
- jToolbar.find('.book_rightmost').bind('click', function(e) {
+ jToolbar.find('.book_rightmost').click(function(e) {
self.rightmost();
return false;
});
//________
// Returns true if we can switch to the requested mode
BookReader.prototype.canSwitchToMode = function(mode) {
- if (mode == this.constMode2up) {
+ if (mode == this.constMode2up || mode == this.constModeThumb) {
// check there are enough pages to display
// $$$ this is a workaround for the mis-feature that we can't display
// short books in 2up mode
- if (this.numLeafs < 6) {
+ if (this.numLeafs < 2) {
return false;
}
}
}
// The final property here must NOT have a comma after it - IE7
}
-
-
-// ttsStart()
-//______________________________________________________________________________
-BookReader.prototype.ttsStart = function () {
- console.log('starting readAloud');
- this.ttsIndex = this.currentIndex();
- this.ttsGetText(this.ttsIndex, 'ttsStartCB');
-}
-
-// ttsGetText()
-//______________________________________________________________________________
-BookReader.prototype.ttsGetText = function(index, callback) {
- var url = 'http://'+this.server+'/BookReader/BookReaderGetTextWrapper.php?path='+this.bookPath+'_djvu.xml&page='+index;
- this.ttsAjax = $.ajax({url:url, dataType:'jsonp', jsonpCallback:callback});
-}
-
-// ttsStartCB(): text-to-speech callback
-//______________________________________________________________________________
-BookReader.prototype.ttsStartCB = function (data) {
- console.log('ttsStartCB got data:');
- console.log(data);
- this.ttsChunks = data;
- this.ttsHilites = [];
-
- //deal with first page being blank
- if (0 == data.length) {
- console.log('first page is blank!');
- if(this.ttsAdvance(true)) {
- this.ttsGetText(this.ttsIndex, 'ttsStartCB');
- }
- return;
- } else {
- console.log('length = ' + data.length);
- console.log((0 == data.length));
- }
-
- this.ttsShowPopup();
-
- this.ttsPosition = -1;
- var snd = soundManager.createSound({
- id: 'chunk'+this.ttsIndex+'-0',
- //url: 'http://home.us.archive.org/~rkumar/arctic.ogg',
- url: 'http://home.us.archive.org/~rkumar/getOgg.php?string=' + escape(data[0][0]) + '&f=.ogg', //the .ogg is to trick SoundManager2 to use the HTML5 audio player
- whileloading: function(){if (this.bytesLoaded == this.bytesTotal) {$(br.popup).remove(); br.popup=null;}} //onload never fires...
- });
- snd.br = this;
- snd.load();
-
- this.ttsNextChunk();
-}
-
-// ttsShowPopup
-//______________________________________________________________________________
-BookReader.prototype.ttsShowPopup = function() {
- this.popup = document.createElement("div");
- $(this.popup).css({
- position: 'absolute',
- top: '20%',
- left: ($('#BRcontainer').attr('clientWidth')-600)/2 + 'px',
- width: '600px',
- padding: "20px",
- border: "3px double #999999",
- zIndex: 3,
- backgroundColor: "#f00",
- color: "#fff",
- fontSize: '1.875em'
- }).appendTo('#BookReader');
-
- htmlStr = '<p style="text-align:center;"><b>Ever wanted to wait while audio loads?</b><br/>';
- htmlStr += "It's OK. We all do.</p>";
-
- this.popup.innerHTML = htmlStr;
-}
-
-// ttsNextPageCB
-//______________________________________________________________________________
-BookReader.prototype.ttsNextPageCB = function (data) {
- this.ttsNextChunks = data;
- console.log('preloaded next chunks.. data is');
- console.log(data);
-
- if (true == this.ttsBuffering) {
- console.log('ttsNextPageCB: ttsBuffering is true');
- this.ttsBuffering = false;
- }
-}
-
-// ttsLoadChunk
-//______________________________________________________________________________
-BookReader.prototype.ttsLoadChunk = function (page, pos, string) {
- var snd = soundManager.createSound({
- id: 'chunk'+page+'-'+pos,
- url: 'http://home.us.archive.org/~rkumar/getOgg.php?string=' + escape(string) + '&f=.ogg' //the .ogg is to trick SoundManager2 to use the HTML5 audio player
- });
- snd.br = this;
- snd.load()
-}
-
-
-// ttsNextChunk()
-//______________________________________________________________________________
-BookReader.prototype.ttsNextChunk = function () {
- console.log(this);
- console.log(this.ttsPosition);
-
- if (-1 != this.ttsPosition) {
- soundManager.destroySound('chunk'+this.ttsIndex+'-'+this.ttsPosition);
- }
-
-
- var moreToPlay = this.ttsAdvance();
-
- if (!moreToPlay) return;
-
- if (0 == this.ttsChunks.length) {
- console.log('ttsNextChunk: ttsChunks.length is zero.. hacking...');
- $(this.ttsHilites).remove();
- this.ttsHilites = [];
- this.ttsStartCB(this.ttsChunks);
- return;
- }
-
- console.log('next chunk is ');
- console.log(this.ttsPosition);
-
- //prefetch next page of text
- if (0 == this.ttsPosition) {
- if (this.ttsIndex<(this.numLeafs-1)) {
- this.ttsGetText(this.ttsIndex+1, 'ttsNextPageCB');
- }
- }
-
- this.ttsPrefetchAudio();
-
- this.ttsPlay();
-
-}
-
-// ttsAdvance()
-//______________________________________________________________________________
-// 1. advance ttsPosition
-// 2. if necessary, advance ttsIndex, and copy ttsNextChunks to ttsChunks
-// 3. if necessary, flip to current page, or scroll so chunk is visible
-// 4. do something smart is ttsNextChunks has not yet finished preloading (TODO)
-// 5. stop playing at end of book
-
-BookReader.prototype.ttsAdvance = function (starting) {
- this.ttsPosition++;
-
- if (this.ttsPosition >= this.ttsChunks.length) {
-
- if (this.ttsIndex == (this.numLeafs-1)) {
- console.log('tts stop');
- return false;
- } else {
- if ((null != this.ttsNextChunks) || (starting)) {
- console.log('moving to next page!');
- this.ttsIndex++;
- this.ttsPosition = 0;
- this.ttsChunks = this.ttsNextChunks;
- this.ttsNextChunks = null;
- if ((this.ttsIndex != this.twoPage.currentIndexL) && (this.ttsIndex != this.twoPage.currentIndexR)) {
- this.next();
- }
- return true;
- } else {
- console.log('ttsAdvance: ttsNextChunks is null');
- return false;
- }
- }
- }
-
- return true;
-}
-
-// ttsPrefetchAudio()
-//______________________________________________________________________________
-BookReader.prototype.ttsPrefetchAudio = function () {
-
- if(false != this.ttsBuffering) {
- alert('TTS Error: prefetch() called while content still buffering!');
- return;
- }
-
-
-
- //preload next chunk
- var nextPos = this.ttsPosition+1;
- if (nextPos < this.ttsChunks.length) {
- this.ttsLoadChunk(this.ttsIndex, nextPos, this.ttsChunks[nextPos][0]);
- } else {
- //for a short page, preload might nt have yet returned..
- console.log('preloading chunk 0 from next page, index='+(this.ttsIndex+1))
- if (null != this.ttsNextChunks) {
- console.log(this.ttsNextChunks);
- if (0 != this.ttsNextChunks.length) {
- this.ttsLoadChunk(this.ttsIndex+1, 0, this.ttsNextChunks[0][0]);
- } else {
- console.log('prefetchAudio(): ttsNextChunks is zero length!');
- }
- } else {
- console.log('ttsNextChunks is null, not preloading next page');
- this.ttsBuffering = true;
- }
- }
-
-}
-
-// ttsPlay()
-//______________________________________________________________________________
-BookReader.prototype.ttsPlay = function () {
-
- var chunk = this.ttsChunks[this.ttsPosition];
- console.log('position = ' + this.ttsPosition);
- console.log('chunk = ' + chunk);
- console.log(this.ttsChunks);
-
- //remove old hilights
- $(this.ttsHilites).remove();
- this.ttsHilites = [];
-
- //add new hilights
- if (2 == this.mode) {
- this.ttsHilite2UP(chunk);
- } else {
- alert('only 2 page mode supported for TTS..');
- }
-
- //play current chunk
- if (false == this.ttsBuffering) {
- soundManager.play('chunk'+this.ttsIndex+'-'+this.ttsPosition,{onfinish:function(){br.ttsNextChunk();}});
- } else {
- console.log('playing current chunk, but next chunk is not buffered yet!');
- soundManager.play('chunk'+this.ttsIndex+'-'+this.ttsPosition,{onfinish:function(){br.ttsStartPolling();}});
- }
-}
-
-// ttsHilite2UP()
-//______________________________________________________________________________
-BookReader.prototype.ttsHilite2UP = function (chunk) {
- var i;
- for (i=0; i<chunk.length; i++) {
- //each rect is an array of l,b,r,t coords (djvu.xml ordering...)
- var l = chunk[i][0];
- var b = chunk[i][1];
- var r = chunk[i][2];
- var t = chunk[i][3];
-
- var div = document.createElement('div');
- this.ttsHilites.push(div);
- $(div).attr('className', 'BookReaderSearchHilite').css('zIndex', 3).appendTo('#BRtwopageview');
- this.setHilightCss2UP(div, this.ttsIndex, l, r, t, b);
- }
-}
-
-// ttsStartPolling()
-//______________________________________________________________________________
-// Play of the current chunk has ended, but the next chunk has not yet been loaded.
-// We need to wait for the text for the next page to be loaded, so we can
-// load the next audio chunk
-BookReader.prototype.ttsStartPolling = function () {
- console.log('Starting the TTS poller...');
- var self = this;
- this.ttsPoller=setInterval(function(){
- if (self.ttsBuffering) {return;}
-
- console.log('TTS buffering finished!');
- clearInterval(self.ttsPoller);
- self.ttsPoller = null;
- self.ttsPrefetchAudio();
- self.ttsNextChunk();
- },500);
-}
\ No newline at end of file