// - getPageURI()
// You must also add a numLeafs property before calling init().
-//XXX
-if (typeof(console) == 'undefined') {
- console = { log: function(msg) { } };
-}
-
function GnuBook() {
this.reduce = 4;
this.padding = 10;
this.twoPagePopUp = null;
this.leafEdgeTmp = null;
this.embedPopup = null;
+ this.printPopup = null;
this.searchResults = {};
});
$('.GBpagediv1up').bind('mousedown', this, function(e) {
- //console.log('mousedown!');
+ // $$$ the purpose of this is to disable selection of the image (makes it turn blue)
+ // but this also interferes with right-click. See https://bugs.edge.launchpad.net/gnubook/+bug/362626
});
if (1 == this.mode) {
GnuBook.prototype.setupKeyListeners = function() {
var self = this;
-
+
var KEY_PGUP = 33;
var KEY_PGDOWN = 34;
var KEY_END = 35;
// We use document here instead of window to avoid a bug in jQuery on IE7
$(document).keydown(function(e) {
-
// Keyboard navigation
switch(e.keyCode) {
case KEY_PGUP:
case KEY_UP:
// In 1up mode page scrolling is handled by browser
if (2 == self.mode) {
+ e.preventDefault();
self.prev();
}
break;
case KEY_DOWN:
case KEY_PGDOWN:
if (2 == self.mode) {
+ e.preventDefault();
self.next();
}
break;
case KEY_END:
+ e.preventDefault();
self.last();
break;
case KEY_HOME:
+ e.preventDefault();
self.first();
break;
case KEY_LEFT:
if (self.keyboardNavigationIsDisabled(e)) {
+ e.preventDefault();
break;
}
if (2 == self.mode) {
+ e.preventDefault();
self.left();
}
break;
case KEY_RIGHT:
if (self.keyboardNavigationIsDisabled(e)) {
+ e.preventDefault();
break;
}
if (2 == self.mode) {
+ e.preventDefault();
self.right();
}
break;
}
}
-// setDragHandler1up()
+// setDragHandler()
//______________________________________________________________________________
-GnuBook.prototype.setDragHandler1up = function(div) {
+GnuBook.prototype.setDragHandler = function(div) {
div.dragging = false;
- $(div).bind('mousedown', function(e) {
+ $(div).unbind('mousedown').bind('mousedown', function(e) {
+ e.preventDefault();
+
//console.log('mousedown at ' + e.pageY);
this.dragging = true;
var startTop = $('#GBcontainer').attr('scrollTop');
var startLeft = $('#GBcontainer').attr('scrollLeft');
- return false;
});
- $(div).bind('mousemove', function(ee) {
- //console.log('mousemove ' + startY);
+ $(div).unbind('mousemove').bind('mousemove', function(ee) {
+ ee.preventDefault();
+
+ // console.log('mousemove ' + ee.pageX + ',' + ee.pageY);
var offsetX = ee.pageX - this.prevMouseX;
var offsetY = ee.pageY - this.prevMouseY;
this.prevMouseX = ee.pageX;
this.prevMouseY = ee.pageY;
- return false;
});
- $(div).bind('mouseup', function(ee) {
+ $(div).unbind('mouseup').bind('mouseup', function(ee) {
+ ee.preventDefault();
//console.log('mouseup');
this.dragging = false;
- return false;
});
- $(div).bind('mouseleave', function(e) {
+ $(div).unbind('mouseleave').bind('mouseleave', function(e) {
+ e.preventDefault();
+ //console.log('mouseleave');
+
+ this.dragging = false;
+ });
+
+ $(div).unbind('mouseenter').bind('mouseenter', function(e) {
+ e.preventDefault();
+ //console.log('mouseenter');
+
+ this.dragging = false;
+ });
+}
+
+// setDragHandler2UP()
+//______________________________________________________________________________
+GnuBook.prototype.setDragHandler2UP = function(div) {
+ div.dragging = false;
+
+ $(div).unbind('mousedown').bind('mousedown', function(e) {
+ e.preventDefault();
+
+ //console.log('mousedown at ' + e.pageY);
+
+ this.dragStart = {x: e.pageX, y: e.pageY };
+ this.mouseDown = true;
+ this.dragging = false; // wait until drag distance
+ this.prevMouseX = e.pageX;
+ this.prevMouseY = e.pageY;
+
+ var startX = e.pageX;
+ var startY = e.pageY;
+ var startTop = $('#GBcontainer').attr('scrollTop');
+ var startLeft = $('#GBcontainer').attr('scrollLeft');
+
+ });
+
+ $(div).unbind('mousemove').bind('mousemove', function(ee) {
+ ee.preventDefault();
+
+ // console.log('mousemove ' + ee.pageX + ',' + ee.pageY);
+
+ var offsetX = ee.pageX - this.prevMouseX;
+ var offsetY = ee.pageY - this.prevMouseY;
+
+ var minDragDistance = 5; // $$$ constant
+
+ var distance = Math.max(Math.abs(offsetX), Math.abs(offsetY));
+
+ if (this.mouseDown && (distance > minDragDistance)) {
+ //console.log('drag start!');
+
+ this.dragging = true;
+ }
+
+ if (this.dragging) {
+ $('#GBcontainer').attr('scrollTop', $('#GBcontainer').attr('scrollTop') - offsetY);
+ $('#GBcontainer').attr('scrollLeft', $('#GBcontainer').attr('scrollLeft') - offsetX);
+ this.prevMouseX = ee.pageX;
+ this.prevMouseY = ee.pageY;
+ }
+
+
+ });
+
+ /*
+ $(div).unbind('mouseup').bind('mouseup', function(ee) {
+ ee.preventDefault();
+ //console.log('mouseup');
+
+ this.dragging = false;
+ this.mouseDown = false;
+ });
+ */
+
+
+ $(div).unbind('mouseleave').bind('mouseleave', function(e) {
+ e.preventDefault();
//console.log('mouseleave');
- //$(this).unbind('mousemove mouseup');
+ this.dragging = false;
+ this.mouseDown = false;
+ });
+
+ $(div).unbind('mouseenter').bind('mouseenter', function(e) {
+ e.preventDefault();
+ //console.log('mouseenter');
+
this.dragging = false;
+ this.mouseDown = false;
+ });
+}
+
+GnuBook.prototype.setClickHandler2UP = function( element, data, handler) {
+ //console.log('setting handler');
+ //console.log(element.tagName);
+
+ $(element).unbind('click').bind('click', data, function(e) {
+ e.preventDefault();
+
+ //console.log('click!');
+ if (this.mouseDown && (!this.dragging)) {
+ //console.log('click not dragging!');
+ handler(e);
+ }
+
+ this.dragging = false;
+ this.mouseDown = false;
});
}
$(div).css('height', height+'px');
//$(div).text('loading...');
- this.setDragHandler1up(div);
+ this.setDragHandler(div);
$('#GBpageview').append(div);
var img = document.createElement("img");
- img.src = this.getPageURI(index);
+ img.src = this.getPageURI(index, this.reduce, 0);
$(img).css('width', width+'px');
$(img).css('height', height+'px');
$(div).append(img);
// drawLeafsTwoPage()
//______________________________________________________________________________
GnuBook.prototype.drawLeafsTwoPage = function() {
- console.log('drawing two leafs!'); // XXX
-
var scrollTop = $('#GBtwopageview').attr('scrollTop');
var scrollBottom = scrollTop + $('#GBtwopageview').height();
- console.log('drawLeafsTwoPage: this.currrentLeafL ' + this.twoPage.currentIndexL); // XXX
-
- // XXX we should use calculated values in this.twoPage (recalc if necessary)
+ // $$$ we should use calculated values in this.twoPage (recalc if necessary)
var indexL = this.twoPage.currentIndexL;
var heightL = this.getPageHeight(indexL);
var top = this.twoPageTop();
var bookCoverDivLeft = this.twoPage.bookCoverDivLeft;
- var scaledWL = this.getPageWidth2UP(indexL);
- var gutter = this.twoPageGutter();
+ this.twoPage.scaledWL = this.getPageWidth2UP(indexL);
+ this.twoPage.gutter = this.twoPageGutter();
this.prefetchImg(indexL);
$(this.prefetchedImgs[indexL]).css({
position: 'absolute',
- left: gutter-scaledWL+'px',
+ left: this.twoPage.gutter-this.twoPage.scaledWL+'px',
right: '',
top: top+'px',
backgroundColor: 'rgb(234, 226, 205)',
height: this.twoPage.height +'px', // $$$ height forced the same for both pages
- width: scaledWL + 'px',
+ width: this.twoPage.scaledWL + 'px',
borderRight: '1px solid black',
zIndex: 2
}).appendTo('#GBtwopageview');
-
-
+
var indexR = this.twoPage.currentIndexR;
var heightR = this.getPageHeight(indexR);
var widthR = this.getPageWidth(indexR);
// $$$ should use getwidth2up?
//var scaledWR = this.twoPage.height*widthR/heightR;
- var scaledWR = this.getPageWidth2UP(indexR);
+ this.twoPage.scaledWR = this.getPageWidth2UP(indexR);
this.prefetchImg(indexR);
$(this.prefetchedImgs[indexR]).css({
position: 'absolute',
- left: gutter+'px',
+ left: this.twoPage.gutter+'px',
right: '',
top: top+'px',
backgroundColor: 'rgb(234, 226, 205)',
height: this.twoPage.height + 'px', // $$$ height forced the same for both pages
- width: scaledWR + 'px',
+ width: this.twoPage.scaledWR + 'px',
borderLeft: '1px solid black',
zIndex: 2
}).appendTo('#GBtwopageview');
this.displayedIndices = [this.twoPage.currentIndexL, this.twoPage.currentIndexR];
- this.setClickHandlers();
+ this.setMouseHandlers2UP();
+ this.twoPageSetCursor();
this.updatePageNumBox2UP();
this.updateToolbarZoom(this.reduce);
+
+ // this.twoPagePlaceFlipAreas(); // No longer used
+
}
// updatePageNumBox2UP
//______________________________________________________________________________
GnuBook.prototype.zoom2up = function(direction) {
- // Stop autoplay
- this.autoStop();
- this.stopFlipAnimations(); // hard stop animations
+ // Hard stop autoplay
+ this.stopFlipAnimations();
// Get new zoom state
var newZoom = this.twoPageNextReduce(this.reduce, direction);
// Preserve view center position
var oldCenter = this.twoPageGetViewCenter();
+ // If zooming in, reload imgs. DOM elements will be removed by prepareTwoPageView
+ // $$$ An improvement would be to use the low res image until the larger one is loaded.
+ if (1 == direction) {
+ for (var img in this.prefetchedImgs) {
+ delete this.prefetchedImgs[img];
+ }
+ }
+
// Prepare view with new center to minimize visual glitches
this.prepareTwoPageView(oldCenter.percentageX, oldCenter.percentageY);
}
var quantized = this.reductionFactors[0];
var distance = Math.abs(reduce - quantized);
for (var i = 1; i < this.reductionFactors.length; i++) {
- newDistance = Math.abs(reduce - reductionFactors[i]);
+ newDistance = Math.abs(reduce - this.reductionFactors[i]);
if (newDistance < distance) {
distance = newDistance;
- quantized = reductionFactors[i];
+ quantized = this.reductionFactors[i];
}
}
this.switchToolbarMode(mode);
+ // $$$ TODO preserve center of view when switching between mode
+ // See https://bugs.edge.launchpad.net/gnubook/+bug/416682
+
if (1 == mode) {
- this.reduce = this.twoPageQuantizeReduce(this.reduce);
+ this.reduce = this.quantizeReduce(this.reduce);
this.prepareOnePageView();
} else {
+ this.twoPage.autofit = false; // Take zoom level from other mode
+ this.reduce = this.quantizeReduce(this.reduce);
this.prepareTwoPageView();
- this.twoPageCenterView(0.5, 0.5);
+ this.twoPageCenterView(0.5, 0.5); // $$$ TODO preserve center
}
}
// Bind mouse handlers
// Disable mouse click to avoid selected/highlighted page images - bug 354239
gbPageView.bind('mousedown', function(e) {
+ // $$$ check here for right-click and don't disable. Also use jQuery style
+ // for stopping propagation. See https://bugs.edge.launchpad.net/gnubook/+bug/362626
return false;
})
// Special hack for IE7
targetLeaf = this.lastDisplayableIndex();
}
- this.twoPage.currentIndexL = null;
- this.twoPage.currentIndexR = null;
- this.pruneUnusedImgs();
+ //this.twoPage.currentIndexL = null;
+ //this.twoPage.currentIndexR = null;
+ //this.pruneUnusedImgs();
var currentSpreadIndices = this.getSpreadIndices(targetLeaf);
this.twoPage.currentIndexL = currentSpreadIndices[0];
this.twoPage.currentIndexR = currentSpreadIndices[1];
this.firstIndex = this.twoPage.currentIndexL;
- this.calculateSpreadSize(); //sets twoPage.width, twoPage.height
-
+ this.calculateSpreadSize(); //sets twoPage.width, twoPage.height and others
+
+ this.pruneUnusedImgs();
+ this.prefetch(); // Preload images or reload if scaling has changed
+
//console.dir(this.twoPage);
// Add the two page view
left: this.twoPage.bookSpineDivLeft+'px',
top: this.twoPage.bookSpineDivTop+'px'
}).appendTo('#GBtwopageview');
-
+
+ var self = this; // for closure
+
+ /* Flip areas no longer used
+ this.twoPage.leftFlipArea = document.createElement('div');
+ this.twoPage.leftFlipArea.className = 'GBfliparea';
+ $(this.twoPage.leftFlipArea).attr('id', 'GBleftflip').css({
+ border: '0',
+ width: this.twoPageFlipAreaWidth() + 'px',
+ height: this.twoPageFlipAreaHeight() + 'px',
+ position: 'absolute',
+ left: this.twoPageLeftFlipAreaLeft() + 'px',
+ top: this.twoPageFlipAreaTop() + 'px',
+ cursor: 'w-resize',
+ zIndex: 100
+ }).bind('click', function(e) {
+ self.left();
+ }).bind('mousedown', function(e) {
+ e.preventDefault();
+ }).appendTo('#GBtwopageview');
+
+ this.twoPage.rightFlipArea = document.createElement('div');
+ this.twoPage.rightFlipArea.className = 'GBfliparea';
+ $(this.twoPage.rightFlipArea).attr('id', 'GBrightflip').css({
+ border: '0',
+ width: this.twoPageFlipAreaWidth() + 'px',
+ height: this.twoPageFlipAreaHeight() + 'px',
+ position: 'absolute',
+ left: this.twoPageRightFlipAreaLeft() + 'px',
+ top: this.twoPageFlipAreaTop() + 'px',
+ cursor: 'e-resize',
+ zIndex: 100
+ }).bind('click', function(e) {
+ self.right();
+ }).bind('mousedown', function(e) {
+ e.preventDefault();
+ }).appendTo('#GBtwopageview');
+ */
+
this.prepareTwoPagePopUp();
-
+
this.displayedIndices = [];
//this.indicesToDisplay=[firstLeaf, firstLeaf+1];
// This function sets this.twoPage.height, twoPage.width
GnuBook.prototype.calculateSpreadSize = function() {
- console.log('calculateSpreadSize ' + this.twoPage.currentIndexL); // XXX
- // $$$ TODO Calculate the spread size based on the reduction factor. If we are using
- // fit mode we recalculate the reduction factor based on the current page sizes
- // and display size first.
-
var firstIndex = this.twoPage.currentIndexL;
var secondIndex = this.twoPage.currentIndexR;
//console.log('first page is ' + firstIndex);
this.twoPage.scaledWR = this.getPageWidth2UP(secondIndex);
// Leaf edges
+ this.twoPage.edgeWidth = spreadSize.totalLeafEdgeWidth; // The combined width of both edges
this.twoPage.leafEdgeWidthL = this.leafEdgeWidth(this.twoPage.currentIndexL);
this.twoPage.leafEdgeWidthR = this.twoPage.edgeWidth - this.twoPage.leafEdgeWidthL;
- this.twoPage.edgeWidth = spreadSize.totalLeafEdgeWidth; // The combined width of both edges
// Book cover
// We calculate the total width and height for the div so that we can make the book
// spine centered
var leftGutterOffset = this.gutterOffsetForIndex(firstIndex);
- var leftWidthFromCenter = this.twoPage.scaledWL + leftGutterOffset + this.twoPage.leafEdgeWidthL;
- var rightWidthFromCenter = this.twoPage.scaledWR - leftGutterOffset + this.twoPage.leafEdgeWidthR;
+ var leftWidthFromCenter = this.twoPage.scaledWL - leftGutterOffset + this.twoPage.leafEdgeWidthL;
+ var rightWidthFromCenter = this.twoPage.scaledWR + leftGutterOffset + this.twoPage.leafEdgeWidthR;
var largestWidthFromCenter = Math.max( leftWidthFromCenter, rightWidthFromCenter );
this.twoPage.totalWidth = 2 * (largestWidthFromCenter + this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding);
this.twoPage.totalHeight = this.twoPage.height + 2 * (this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding);
var maxLeafEdgeWidth = parseInt($('#GBcontainer').attr('clientWidth') * 0.1);
ideal.totalLeafEdgeWidth = Math.min(totalLeafEdgeWidth, maxLeafEdgeWidth);
- ideal.width = ($('#GBcontainer').attr('clientWidth') - 30 - ideal.totalLeafEdgeWidth)>>1;
- ideal.height = $('#GBcontainer').height() - 30; // $$$ why - 30? book edge width?
+ var widthOutsidePages = 2 * (this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding) + ideal.totalLeafEdgeWidth;
+ var heightOutsidePages = 2* (this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding);
+
+ ideal.width = ($('#GBcontainer').width() - widthOutsidePages) >> 1;
+ ideal.width -= 10; // $$$ fudge factor
+ ideal.height = $('#GBcontainer').height() - heightOutsidePages;
+ ideal.height -= 20; // fudge factor
//console.log('init idealWidth='+ideal.width+' idealHeight='+ideal.height + ' ratio='+ratio);
if (ideal.height/ratio <= ideal.width) {
ideal.height = parseInt(ideal.width*ratio);
}
- // XXX check this logic with large spreads
+ // $$$ check this logic with large spreads
ideal.reduce = ((first.height + second.height) / 2) / ideal.height;
return ideal;
var spreadSize = {};
// $$$ Scale this based on reduce?
var totalLeafEdgeWidth = parseInt(this.numLeafs * 0.1);
- var maxLeafEdgeWidth = parseInt($('#GBcontainer').attr('clientWidth') * 0.1); // XXX update
+ var maxLeafEdgeWidth = parseInt($('#GBcontainer').attr('clientWidth') * 0.1); // $$$ Assumes leaf edge width constant at all zoom levels
spreadSize.totalLeafEdgeWidth = Math.min(totalLeafEdgeWidth, maxLeafEdgeWidth);
// $$$ Possibly incorrect -- we should make height "dominant"
return spreadSize.reduce;
}
+// twoPageSetCursor()
+//______________________________________________________________________________
+// Set the cursor for two page view
+GnuBook.prototype.twoPageSetCursor = function() {
+ // console.log('setting cursor');
+ if ( ($('#GBtwopageview').width() > $('#GBcontainer').attr('clientWidth')) ||
+ ($('#GBtwopageview').height() > $('#GBcontainer').attr('clientHeight')) ) {
+ $(this.prefetchedImgs[this.twoPage.currentIndexL]).css('cursor','move');
+ $(this.prefetchedImgs[this.twoPage.currentIndexR]).css('cursor','move');
+ } else {
+ $(this.prefetchedImgs[this.twoPage.currentIndexL]).css('cursor','');
+ $(this.prefetchedImgs[this.twoPage.currentIndexR]).css('cursor','');
+ }
+}
+
// currentIndex()
//______________________________________________________________________________
// Returns the currently active index.
// Left gets the offset of the current left leaf from the document
var left = $(this.prefetchedImgs[leftLeaf]).offset().left;
// $$$ This seems very similar to the gutter. May be able to consolidate the logic.
- // XXX need to recalc
var right = $('#GBtwopageview').attr('clientWidth')-left-$(this.prefetchedImgs[leftLeaf]).width()+$('#GBtwopageview').offset().left-2+'px';
+
// We change the left leaf to right positioning
// $$$ This causes animation glitches during resize. See https://bugs.edge.launchpad.net/gnubook/+bug/328327
$(this.prefetchedImgs[leftLeaf]).css({
left: ''
});
- left = $(this.prefetchedImgs[leftLeaf]).offset().left - $('#book_div_1').offset().left; // $$$ update div name
-
- right = left+$(this.prefetchedImgs[leftLeaf]).width()+'px';
-
$(this.leafEdgeTmp).animate({left: gutter}, this.flipSpeed, 'easeInSine');
//$(this.prefetchedImgs[leftLeaf]).animate({width: '0px'}, 'slow', 'easeInSine');
$(self.leafEdgeTmp).remove();
self.leafEdgeTmp = null;
+
+ // $$$ TODO refactor with opposite direction flip
self.twoPage.currentIndexL = newIndexL;
self.twoPage.currentIndexR = newIndexR;
+ self.twoPage.scaledWL = newWidthL;
+ self.twoPage.scaledWR = newWidthR;
+ self.twoPage.gutter = gutter;
+
self.firstIndex = self.twoPage.currentIndexL;
self.displayedIndices = [newIndexL, newIndexR];
- self.setClickHandlers();
self.pruneUnusedImgs();
self.prefetch();
self.animating = false;
self.updateSearchHilites2UP();
self.updatePageNumBox2UP();
+ // self.twoPagePlaceFlipAreas(); // No longer used
+ self.setMouseHandlers2UP();
+ self.twoPageSetCursor();
+
if (self.animationFinishedCallback) {
self.animationFinishedCallback();
self.animationFinishedCallback = null;
var currWidthR = this.getPageWidth2UP(this.twoPage.currentIndexR);
var newWidthL = this.getPageWidth2UP(newIndexL);
var newWidthR = this.getPageWidth2UP(newIndexR);
-
+
$(this.leafEdgeR).css({width: newLeafEdgeWidthR+'px', left: gutter+newWidthR+'px' });
var self = this; // closure-tastic!
// Resizes the book cover
$(self.twoPage.coverDiv).css({
width: self.twoPageCoverWidth(newWidthL+newWidthR)+'px',
- left: gutter - newWidthL - newLeafEdgeWidthL - self.coverInternalPadding + 'px'
+ left: gutter - newWidthL - newLeafEdgeWidthL - self.twoPage.coverInternalPadding + 'px'
});
$(self.leafEdgeTmp).remove();
self.twoPage.currentIndexL = newIndexL;
self.twoPage.currentIndexR = newIndexR;
+ self.twoPage.scaledWL = newWidthL;
+ self.twoPage.scaledWR = newWidthR;
+ self.twoPage.gutter = gutter;
+
self.firstIndex = self.twoPage.currentIndexL;
self.displayedIndices = [newIndexL, newIndexR];
- self.setClickHandlers();
self.pruneUnusedImgs();
self.prefetch();
self.animating = false;
self.updateSearchHilites2UP();
self.updatePageNumBox2UP();
+ // self.twoPagePlaceFlipAreas(); // No longer used
+ self.setMouseHandlers2UP();
+ self.twoPageSetCursor();
+
if (self.animationFinishedCallback) {
self.animationFinishedCallback();
self.animationFinishedCallback = null;
});
}
-// setClickHandlers
+// setMouseHandlers2UP
//______________________________________________________________________________
-GnuBook.prototype.setClickHandlers = function() {
- var self = this;
- // $$$ TODO don't set again if already set
- $(this.prefetchedImgs[this.twoPage.currentIndexL]).click(function() {
+GnuBook.prototype.setMouseHandlers2UP = function() {
+ /*
+ $(this.prefetchedImgs[this.twoPage.currentIndexL]).bind('dblclick', function() {
//self.prevPage();
self.autoStop();
self.left();
});
- $(this.prefetchedImgs[this.twoPage.currentIndexR]).click(function() {
+ $(this.prefetchedImgs[this.twoPage.currentIndexR]).bind('dblclick', function() {
//self.nextPage();'
self.autoStop();
self.right();
});
+ */
+
+ this.setDragHandler2UP( this.prefetchedImgs[this.twoPage.currentIndexL] );
+ this.setClickHandler2UP( this.prefetchedImgs[this.twoPage.currentIndexL],
+ { self: this },
+ function(e) {
+ e.data.self.left();
+ }
+ );
+
+ this.setDragHandler2UP( this.prefetchedImgs[this.twoPage.currentIndexR] );
+ this.setClickHandler2UP( this.prefetchedImgs[this.twoPage.currentIndexR],
+ { self: this },
+ function(e) {
+ e.data.self.right();
+ }
+ );
}
// prefetchImg()
//______________________________________________________________________________
GnuBook.prototype.prefetchImg = function(index) {
- if (undefined == this.prefetchedImgs[index]) {
+ var pageURI = this.getPageURI(index);
+
+ // Load image if not loaded or URI has changed (e.g. due to scaling)
+ var loadImage = false;
+ if (undefined == this.prefetchedImgs[index]) {
+ //console.log('no image for ' + index);
+ loadImage = true;
+ } else if (pageURI != this.prefetchedImgs[index].uri) {
+ //console.log('uri changed for ' + index);
+ loadImage = true;
+ }
+
+ if (loadImage) {
//console.log('prefetching ' + index);
var img = document.createElement("img");
- img.src = this.getPageURI(index);
+ img.src = pageURI;
+ img.uri = pageURI; // browser may rewrite src so we stash raw URI here
this.prefetchedImgs[index] = img;
}
}
// It is offset from the middle to create the illusion of thickness to the pages
var gutter = middle + this.gutterOffsetForIndex(prevL);
- // XXX
- console.log(' gutter for ' + prevL + ' is ' + gutter);
+ //console.log(' gutter for ' + prevL + ' is ' + gutter);
//console.log(' prevL.left: ' + (gutter - scaledW) + 'px');
//console.log(' changing prevL ' + prevL + ' to left: ' + (gutter-scaledW) + ' width: ' + scaledW);
}
-// XXXmang we're adding an extra pixel in the middle
+// $$$ mang we're adding an extra pixel in the middle. See https://bugs.edge.launchpad.net/gnubook/+bug/411667
// prepareFlipRightToLeft()
//______________________________________________________________________________
GnuBook.prototype.prepareFlipRightToLeft = function(nextL, nextR) {
var scaledW = this.twoPage.height*width/height;
var gutter = middle + this.gutterOffsetForIndex(nextL);
-
- console.log('right to left to %d gutter is %d', nextL, gutter); // XXX
-
+
//console.log(' prepareRTL changing nextR ' + nextR + ' to left: ' + gutter);
$(this.prefetchedImgs[nextR]).css({
position: 'absolute',
//______________________________________________________________________________
GnuBook.prototype.prefetch = function() {
+ // prefetch visible pages first
+ this.prefetchImg(this.twoPage.currentIndexL);
+ this.prefetchImg(this.twoPage.currentIndexR);
+
+ var adjacentPagesToLoad = 3;
+
+ var lowCurrent = Math.min(this.twoPage.currentIndexL, this.twoPage.currentIndexR);
+ var highCurrent = Math.max(this.twoPage.currentIndexL, this.twoPage.currentIndexR);
+
+ var start = Math.max(lowCurrent - adjacentPagesToLoad, 0);
+ var end = Math.min(highCurrent + adjacentPagesToLoad, this.numLeafs - 1);
+
+ // Load images spreading out from current
+ for (var i = 1; i <= adjacentPagesToLoad; i++) {
+ var goingDown = lowCurrent - i;
+ if (goingDown >= start) {
+ this.prefetchImg(goingDown);
+ }
+ var goingUp = highCurrent + i;
+ if (goingUp <= end) {
+ this.prefetchImg(goingUp);
+ }
+ }
+
+ /*
var lim = this.twoPage.currentIndexL-4;
var i;
lim = Math.max(lim, 0);
this.prefetchImg(i);
}
}
+ */
}
// getPageWidth2UP()
}
}
-// XXX move, clean up, use everywhere
+// twoPageGutter()
+//______________________________________________________________________________
+// Returns the position of the gutter (line between the page images)
GnuBook.prototype.twoPageGutter = function() {
return this.twoPage.middle + this.gutterOffsetForIndex(this.twoPage.currentIndexL);
}
-// XXX move, clean up, use everywhere
+// twoPageTop()
+//______________________________________________________________________________
+// Returns the offset for the top of the page images
GnuBook.prototype.twoPageTop = function() {
return this.twoPage.coverExternalPadding + this.twoPage.coverInternalPadding; // $$$ + border?
}
-
+
+// twoPageCoverWidth()
+//______________________________________________________________________________
+// Returns the width of the cover div given the total page width
GnuBook.prototype.twoPageCoverWidth = function(totalPageWidth) {
return totalPageWidth + this.twoPage.edgeWidth + 2*this.twoPage.coverInternalPadding;
}
+// twoPageGetViewCenter()
+//______________________________________________________________________________
+// Returns the percentage offset into twopageview div at the center of container div
+// { percentageX: float, percentageY: float }
GnuBook.prototype.twoPageGetViewCenter = function() {
var center = {};
$('#GBcontainer').scrollTop(intoViewY - (containerClientHeight >> 1));
}
}
+
+// twoPageFlipAreaHeight
+//______________________________________________________________________________
+// Returns the integer height of the click-to-flip areas at the edges of the book
+GnuBook.prototype.twoPageFlipAreaHeight = function() {
+ return parseInt(this.twoPage.height);
+}
+
+// twoPageFlipAreaWidth
+//______________________________________________________________________________
+// Returns the integer width of the flip areas
+GnuBook.prototype.twoPageFlipAreaWidth = function() {
+ var max = 100; // $$$ TODO base on view width?
+ var min = 10;
+
+ var width = this.twoPage.width * 0.15;
+ return parseInt(GnuBook.util.clamp(width, min, max));
+}
+
+// twoPageFlipAreaTop
+//______________________________________________________________________________
+// Returns integer top offset for flip areas
+GnuBook.prototype.twoPageFlipAreaTop = function() {
+ return parseInt(this.twoPage.bookCoverDivTop + this.twoPage.coverInternalPadding);
+}
+
+// twoPageLeftFlipAreaLeft
+//______________________________________________________________________________
+// Left offset for left flip area
+GnuBook.prototype.twoPageLeftFlipAreaLeft = function() {
+ return parseInt(this.twoPage.gutter - this.twoPage.scaledWL);
+}
+
+// twoPageRightFlipAreaLeft
+//______________________________________________________________________________
+// Left offset for right flip area
+GnuBook.prototype.twoPageRightFlipAreaLeft = function() {
+ return parseInt(this.twoPage.gutter + this.twoPage.scaledWR - this.twoPageFlipAreaWidth());
+}
+
+// twoPagePlaceFlipAreas
+//______________________________________________________________________________
+// Readjusts position of flip areas based on current layout
+GnuBook.prototype.twoPagePlaceFlipAreas = function() {
+ // We don't set top since it shouldn't change relative to view
+ $(this.twoPage.leftFlipArea).css({
+ left: this.twoPageLeftFlipAreaLeft() + 'px',
+ width: this.twoPageFlipAreaWidth() + 'px'
+ });
+ $(this.twoPage.rightFlipArea).css({
+ left: this.twoPageRightFlipAreaLeft() + 'px',
+ width: this.twoPageFlipAreaWidth() + 'px'
+ });
+}
// showSearchHilites2UP()
//______________________________________________________________________________
}
}
+// printPage
+//______________________________________________________________________________
+GnuBook.prototype.printPage = function() {
+ window.open(this.getPrintURI(), 'printpage', 'width=400, height=500, resizable=yes, scrollbars=no, toolbar=no, location=no');
+
+ /* iframe implementation
+
+ if (null != this.printPopup) { // check if already showing
+ return;
+ }
+ this.printPopup = document.createElement("div");
+ $(this.printPopup).css({
+ position: 'absolute',
+ top: '20px',
+ left: ($('#GBcontainer').width()-400)/2 + 'px',
+ width: '400px',
+ padding: "20px",
+ border: "3px double #999999",
+ zIndex: 3,
+ backgroundColor: "#fff"
+ }).appendTo('#GnuBook');
+
+ var indexToPrint;
+ if (this.constMode1up == this.mode) {
+ indexToPrint = this.firstIndex;
+ } else {
+ indexToPrint = this.twoPage.currentIndexL;
+ }
+
+ this.indexToPrint = indexToPrint;
+
+ var htmlStr = '<div style="text-align: center;">';
+ htmlStr = '<p style="text-align:center;"><b><a href="javascript:void(0);" onclick="window.frames[0].focus(); window.frames[0].print(); return false;">Click here to print this page</a></b></p>';
+ htmlStr += '<div id="printDiv" name="printDiv" style="text-align: center; width: 233px; margin: auto">'
+ htmlStr += '<p style="text-align:right; margin: 0; font-size: 0.85em">';
+ //htmlStr += '<button class="GBicon rollover book_up" onclick="gb.updatePrintFrame(-1); return false;"></button> ';
+ //htmlStr += '<button class="GBicon rollover book_down" onclick="gb.updatePrintFrame(1); return false;"></button>';
+ htmlStr += '<a href="#" onclick="gb.updatePrintFrame(-1); return false;">Prev</a> <a href="#" onclick="gb.updatePrintFrame(1); return false;">Next</a>';
+ htmlStr += '</p>';
+ htmlStr += '</div>';
+ htmlStr += '<p style="text-align:center;"><a href="" onclick="gb.printPopup = null; $(this.parentNode.parentNode).remove(); return false">Close popup</a></p>';
+ htmlStr += '</div>';
+
+ this.printPopup.innerHTML = htmlStr;
+
+ var iframe = document.createElement('iframe');
+ iframe.id = 'printFrame';
+ iframe.name = 'printFrame';
+ iframe.width = '233px'; // 8.5 x 11 aspect
+ iframe.height = '300px';
+
+ var self = this; // closure
+
+ $(iframe).load(function() {
+ var doc = GnuBook.util.getIFrameDocument(this);
+ $('body', doc).html(self.getPrintFrameContent(self.indexToPrint));
+ });
+
+ $('#printDiv').prepend(iframe);
+ */
+}
+
+// Get print URI from current indices and mode
+GnuBook.prototype.getPrintURI = function() {
+ var indexToPrint;
+ if (this.constMode2up == this.mode) {
+ indexToPrint = this.twoPage.currentIndexL;
+ } else {
+ indexToPrint = this.firstIndex; // $$$ the index in the middle of the viewport would make more sense
+ }
+
+ var options = 'id=' + this.bookId + '&server=' + this.server + '&zip=' + this.zip
+ + '&format=' + this.imageFormat + '&index=' + this.leafMap[indexToPrint]
+ + '&width=' + this.getPageWidth(indexToPrint) + '&height=' + this.getPageHeight(indexToPrint);
+
+ if (this.constMode2up == this.mode) {
+ options += '&index2=' + this.leafMap[this.twoPage.currentIndexR] + '&width2=' + this.getPageWidth(this.twoPage.currentIndexR);
+ options += '&height2=' + this.getPageHeight(this.twoPage.currentIndexR);
+ options += '&title=' + escape(this.shortTitle(30) + ' - Pages ' + this.getPageNum(this.twoPage.currentIndexL) + ', ' + this.getPageNum(this.twoPage.currentIndexR));
+ } else {
+ options += '&title=' + escape(this.shortTitle(30) + ' - Page ' + this.getPageNum(indexToPrint));
+ }
+
+ return '/bookreader/print.php?' + options;
+}
+
+GnuBook.prototype.getPrintFrameContent = function(index) {
+ // We fit the image based on an assumed A4 aspect ratio. A4 is a bit taller aspect than
+ // 8.5x11 so we should end up not overflowing on either paper size.
+ var paperAspect = 8.5 / 11;
+ var imageAspect = this.getPageWidth(index) / this.getPageHeight(index);
+
+ var rotate = 0;
+
+ // Rotate if possible and appropriate, to get larger image size on printed page
+ if (this.canRotatePage(index)) {
+ if (imageAspect > 1 && imageAspect > paperAspect) {
+ // more wide than square, and more wide than paper
+ rotate = 90;
+ imageAspect = 1/imageAspect;
+ }
+ }
+
+ var fitAttrs;
+ if (imageAspect > paperAspect) {
+ // wider than paper, fit width
+ fitAttrs = 'width="95%"';
+ } else {
+ // taller than paper, fit height
+ fitAttrs = 'height="95%"';
+ }
+
+ var imageURL = this.getPageURI(index, 1, rotate);
+ var iframeStr = '<html style="padding: 0; border: 0; margin: 0"><head><title>' + this.bookTitle + '</title></head><body style="padding: 0; border:0; margin: 0">';
+ iframeStr += '<div style="text-align: center; width: 99%; height: 99%; overflow: hidden;">';
+ iframeStr += '<img src="' + imageURL + '" ' + fitAttrs + ' />';
+ iframeStr += '</div>';
+ iframeStr += '</body></html>';
+
+ return iframeStr;
+}
+
+GnuBook.prototype.updatePrintFrame = function(delta) {
+ var newIndex = this.indexToPrint + delta;
+ newIndex = GnuBook.util.clamp(newIndex, 0, this.numLeafs - 1);
+ if (newIndex == this.indexToPrint) {
+ return;
+ }
+ this.indexToPrint = newIndex;
+ var doc = GnuBook.util.getIFrameDocument($('#printFrame')[0]);
+ $('body', doc).html(this.getPrintFrameContent(this.indexToPrint));
+}
+
// showEmbedCode()
//______________________________________________________________________________
GnuBook.prototype.showEmbedCode = function() {
// autoStop()
//______________________________________________________________________________
+// Stop autoplay mode, allowing animations to finish
GnuBook.prototype.autoStop = function() {
if (null != this.autoTimer) {
clearInterval(this.autoTimer);
}
}
-// $$$ document
+// stopFlipAnimations
+//______________________________________________________________________________
+// Immediately stop flip animations. Callbacks are triggered.
GnuBook.prototype.stopFlipAnimations = function() {
+ this.autoStop(); // Clear timers
+
// Stop animation, clear queue, trigger callbacks
if (this.leafEdgeTmp) {
$(this.leafEdgeTmp).stop(false, true);
}
- console.log(this.leafEdgeTmp);
jQuery.each(this.prefetchedImgs, function() {
$(this).stop(false, true);
});
if (this.leafEdgeTmp) {
$(this.leafEdgeTmp).stop(false, true);
}
- console.log(this.leafEdgeTmp);
jQuery.each(this.prefetchedImgs, function() {
$(this).stop(false, true);
});
GnuBook.prototype.initToolbar = function(mode, ui) {
- $("#GnuBook").append("<div id='GBtoolbar'><span style='float:left;'>"
- + "<a class='GBicon logo rollover' href='" + this.logoURL + "'> </a>"
- + " <button class='GBicon rollover zoom_out' onclick='gb.zoom(-1); return false;'/>"
- + "<button class='GBicon rollover zoom_in' onclick='gb.zoom(1); return false;'/>"
- + " <span class='label'>Zoom: <span id='GBzoom'>"+parseInt(100/this.reduce)+"</span>%</span>"
- + " <button class='GBicon rollover one_page_mode' onclick='gb.switchMode(1); return false;'/>"
- + " <button class='GBicon rollover two_page_mode' onclick='gb.switchMode(2); return false;'/>"
- + " <a class='GBblack title' href='"+this.bookUrl+"' target='_blank'>"+this.shortTitle(50)+"</a>"
- + "</span></div>");
+ $("#GnuBook").append("<div id='GBtoolbar'>"
+ + "<span id='GBtoolbarbuttons' style='float: right'>"
+ + "<button class='GBicon print rollover' /> <button class='GBicon rollover embed' />"
+ + "<form class='GBpageform' action='javascript:' onsubmit='gb.jumpToPage(this.elements[0].value)'> <span class='label'>Page:<input id='GBpagenum' type='text' size='3' onfocus='gb.autoStop();'></input></span></form>"
+ + "<div class='GBtoolbarmode2' style='display: none'><button class='GBicon rollover book_leftmost' /><button class='GBicon rollover book_left' /><button class='GBicon rollover book_right' /><button class='GBicon rollover book_rightmost' /></div>"
+ + "<div class='GBtoolbarmode1' style='display: none'><button class='GBicon rollover book_top' /><button class='GBicon rollover book_up' /> <button class='GBicon rollover book_down' /><button class='GBicon rollover book_bottom' /></div>"
+ + "<button class='GBicon rollover play' /><button class='GBicon rollover pause' style='display: none' />"
+ + "</span>"
+
+ + "<span>"
+ + "<a class='GBicon logo rollover' href='" + this.logoURL + "'> </a>"
+ + " <button class='GBicon rollover zoom_out' onclick='gb.zoom(-1); return false;'/>"
+ + "<button class='GBicon rollover zoom_in' onclick='gb.zoom(1); return false;'/>"
+ + " <span class='label'>Zoom: <span id='GBzoom'>"+parseInt(100/this.reduce)+"</span></span>"
+ + " <button class='GBicon rollover one_page_mode' onclick='gb.switchMode(1); return false;'/>"
+ + " <button class='GBicon rollover two_page_mode' onclick='gb.switchMode(2); return false;'/>"
+ + "</span>"
+
+ + "<span id='#GBbooktitle'>"
+ + " <a class='GBblack title' href='"+this.bookUrl+"' target='_blank'>"+this.bookTitle+"</a>"
+ + "</span>"
+ + "</div>");
+
+ this.updateToolbarZoom(this.reduce); // Pretty format
if (ui == "embed") {
$("#GnuBook a.logo").attr("target","_blank");
var jToolbar = $('#GBtoolbar'); // j prefix indicates jQuery object
// We build in mode 2
- jToolbar.append("<span id='GBtoolbarbuttons' style='float: right'>"
- + "<button class='GBicon rollover embed' />"
- + "<form class='GBpageform' action='javascript:' onsubmit='gb.jumpToPage(this.elements[0].value)'> <span class='label'>Page:<input id='GBpagenum' type='text' size='3' onfocus='gb.autoStop();'></input></span></form>"
- + "<div class='GBtoolbarmode2' style='display: none'><button class='GBicon rollover book_leftmost' /><button class='GBicon rollover book_left' /><button class='GBicon rollover book_right' /><button class='GBicon rollover book_rightmost' /></div>"
- + "<div class='GBtoolbarmode1' style='display: none'><button class='GBicon rollover book_top' /><button class='GBicon rollover book_up' /> <button class='GBicon rollover book_down' /><button class='GBicon rollover book_bottom' /></div>"
- + "<button class='GBicon rollover play' /><button class='GBicon rollover pause' style='display: none' /></span>");
+ jToolbar.append();
this.bindToolbarNavHandlers(jToolbar);
'.zoom_out': 'Zoom out',
'.one_page_mode': 'One-page view',
'.two_page_mode': 'Two-page view',
+ '.print': 'Print this page',
'.embed': 'Embed bookreader',
'.book_left': 'Flip left',
'.book_right': 'Flip right',
gb.next();
return false;
});
+
+ jToolbar.find('.print').bind('click', function(e) {
+ gb.printPage();
+ return false;
+ });
jToolbar.find('.embed').bind('click', function(e) {
gb.showEmbedCode();
//______________________________________________________________________________
// Update the displayed zoom factor based on reduction factor
GnuBook.prototype.updateToolbarZoom = function(reduce) {
- // $$$ TODO: Move toolbar to it's own object/plugin
- $('#GBzoom').text(parseInt(100/reduce));
+ var value;
+ if (this.constMode2up == this.mode && this.twoPage.autofit) {
+ value = 'Auto';
+ } else {
+ value = (100 / reduce).toFixed(2);
+ // Strip trailing zeroes and decimal if all zeroes
+ value = value.replace(/0+$/,'');
+ value = value.replace(/\.$/,'');
+ value += '%';
+ }
+ $('#GBzoom').text(value);
}
// firstDisplayableIndex
return title;
}
-
-
// Parameter related functions
// updateFromParams(params)
try {
var pageIntStr = pageNum.slice(1, pageNum.length);
var pageIndex = parseInt(pageIntStr);
- indices.append(pageIndex);
+ indices.push(pageIndex);
return indices;
} catch(err) {
// Do nothing... will run through page names and see if one matches
}, 500);
}
-// getEmbedURL
-//________
-// Returns a URL for an embedded version of the current book
-GnuBook.prototype.getEmbedURL = function() {
- // We could generate a URL hash fragment here but for now we just leave at defaults
- return 'http://' + window.location.host + '/stream/'+this.bookId + '?ui=embed';
-}
-
-// getEmbedCode
-//________
-// Returns the embed code HTML fragment suitable for copy and paste
-GnuBook.prototype.getEmbedCode = function() {
- return "<iframe src='" + this.getEmbedURL() + "' width='480px' height='430px'></iframe>";
-}
-
// canSwitchToMode
//________
// Returns true if we can switch to the requested mode
GnuBook.util = {
clamp: function(value, min, max) {
return Math.min(Math.max(value, min), max);
+ },
+
+ getIFrameDocument: function(iframe) {
+ // Adapted from http://xkr.us/articles/dom/iframe-document/
+ var outer = (iframe.contentWindow || iframe.contentDocument);
+ return (outer.document || outer);
}
-}
\ No newline at end of file
+}
projects / bookreader.git / blobdiff