this.twoPagePopUp = null;
this.leafEdgeTmp = null;
this.embedPopup = null;
- this.popup = null;
+ this.printPopup = null;
this.searchTerm = '';
this.searchResults = {};
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;
};
//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() {
$("#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>"
}
// 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 = $.ajax({url:url, dataType:'jsonp', jsonpCallback:callback});
-}
-
-// ttsStartCB(): text-to-speech callback
-//______________________________________________________________________________
-BookReader.prototype.ttsStartCB = function (data) {
- console.log('ttsStartCB got data:');
- console.log(data);
- this.ttsChunks = data;
- this.ttsHilites = [];
-
- //deal with the page being blank
- if (0 == data.length) {
- console.log('first page is blank!');
- if(this.ttsAdvance(true)) {
- this.ttsGetText(this.ttsIndex, 'ttsStartCB');
- }
- return;
- } else {
- console.log('length = ' + data.length);
- console.log((0 == data.length));
- }
-
- this.ttsShowPopup();
-
- this.ttsPosition = -1;
- var snd = soundManager.createSound({
- id: 'chunk'+this.ttsIndex+'-0',
- //url: 'http://home.us.archive.org/~rkumar/arctic.ogg',
- url: 'http://home.us.archive.org/~rkumar/getOgg.php?string=' + escape(data[0][0]) + '&f=.ogg', //the .ogg is to trick SoundManager2 to use the HTML5 audio player
- whileloading: function(){if (this.bytesLoaded == this.bytesTotal) {$(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()
-//______________________________________________________________________________
-// I've split this function into two parts: ttsNextChunk and ttsNextChunkPhase2.
-// This is to make the 2-page flip behavior nicer, but makes the code much
-// more complicated.
-// If a page flip is necessary, ttsAdvance() will return false so Phase2 isn't
-// called. Instead, this.animationFinishedCallback is set, so that Phase2
-// continues after animation is finished.
-
-BookReader.prototype.ttsNextChunk = function () {
- console.log(this);
- console.log(this.ttsPosition);
-
- if (-1 != this.ttsPosition) {
- soundManager.destroySound('chunk'+this.ttsIndex+'-'+this.ttsPosition);
- }
-
- //remove old hilights
- $(this.ttsHilites).remove();
- this.ttsHilites = [];
-
- var moreToPlay = this.ttsAdvance();
-
- if (moreToPlay) {
- this.ttsNextChunkPhase2();
- }
-
- //This function is called again when ttsPlay() has finished playback.
- //If the next chunk of text has not yet finished loading, ttsPlay()
- //will start polling until the next chunk is ready.
-}
-
-// ttsNextChunkPhase2()
-//______________________________________________________________________________
-// page flip animation has now completed
-BookReader.prototype.ttsNextChunkPhase2 = function () {
- if (0 == this.ttsChunks.length) {
- console.log('ttsNextChunk2: ttsChunks.length is zero.. hacking...');
- 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.animationFinishedCallback = this.ttsNextChunkPhase2;
- this.next();
- return false;
- } else {
- 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);
-
- //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
projects / bookreader.git / blobdiff