// Mode constants
this.constMode1up = 1;
this.constMode2up = 2;
+ this.constModeThumb = 3;
// Zoom levels
this.reductionFactors = [0.5, 1, 2, 4, 8, 16];
e.data.displayedIndices = [];
e.data.updateSearchHilites(); //deletes hilights but does not call remove()
e.data.loadLeafs();
+ } else if (3 == e.data.mode){
+ e.data.prepareThumbnailView;
} else {
//console.log('drawing 2 page view');
});
$('.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) {
this.resizePageView();
this.firstIndex = startIndex;
this.jumpToIndex(startIndex);
- } else {
+ } else if (3 == this.mode) {
+ this.firstIndex = startIndex;
+ this.jumpToIndex(startIndex);
+ this.prepareThumbnailView();
+ } else {
//this.resizePageView();
this.displayedIndices=[0];
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;
GnuBook.prototype.drawLeafs = function() {
if (1 == this.mode) {
this.drawLeafsOnePage();
+ } else if(3 == this.mode) {
+ this.drawLeafsThumbnail();
} else {
this.drawLeafsTwoPage();
}
}
-// 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).unbind('mousemove mouseup');
+ 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.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);
}
+// drawLeafsThumbnail()
+//______________________________________________________________________________
+GnuBook.prototype.drawLeafsThumbnail = function() {
+ //alert('drawing leafs!');
+ this.timer = null;
+
+
+ var scrollTop = $('#GBcontainer').attr('scrollTop');
+ var scrollBottom = scrollTop + $('#GBcontainer').height();
+ //console.log('top=' + scrollTop + ' bottom='+scrollBottom);
+
+ var indicesToDisplay = [];
+
+ var i;
+ var leafTop = 0;
+ var leafBottom = 0;
+ var viewHeight = 0;
+ var width = 0;
+ for (i=0; i<this.numLeafs; i++) {
+ var height = parseInt(this.getPageHeight(i)/this.thumbScale);
+
+ leafBottom += height;
+ //console.log('leafTop = '+leafTop+ ' pageH = ' + this.pageH[i] + 'leafTop>=scrollTop=' + (leafTop>=scrollTop));
+ var topInView = (leafTop >= scrollTop) && (leafTop <= scrollBottom);
+ var bottomInView = (leafBottom >= scrollTop) && (leafBottom <= scrollBottom);
+ var middleInView = (leafTop <=scrollTop) && (leafBottom>=scrollBottom);
+ if (topInView | bottomInView | middleInView) {
+ //console.log('displayed: ' + this.displayedIndices);
+ //console.log('to display: ' + i);
+ indicesToDisplay.push(i);
+ }
+ leafTop += height +10;
+ leafBottom += 10;
+ }
+
+ var firstIndexToDraw = indicesToDisplay[0];
+ this.firstIndex = firstIndexToDraw;
+
+ // Update hash, but only if we're currently displaying a leaf
+ // Hack that fixes #365790
+ if (this.displayedIndices.length > 0) {
+ this.updateLocationHash();
+ }
+
+ if ((0 != firstIndexToDraw) && (1 < this.reduce)) {
+ firstIndexToDraw--;
+ indicesToDisplay.unshift(firstIndexToDraw);
+ }
+
+ var lastIndexToDraw = indicesToDisplay[indicesToDisplay.length-1];
+ if ( ((this.numLeafs-1) != lastIndexToDraw) && (1 < this.reduce) ) {
+ indicesToDisplay.push(lastIndexToDraw+1);
+ }
+
+ leafTop = 0;
+ var i;
+ for (i=0; i<firstIndexToDraw; i++) {
+ leafTop += parseInt(this.getPageHeight(i)/this.thumbScale) +10;
+ }
+
+ //var viewWidth = $('#GBpageview').width(); //includes scroll bar width
+ var viewWidth = $('#GBcontainer').attr('scrollWidth');
+
+
+ for (i=0; i<indicesToDisplay.length; i++) {
+ var index = indicesToDisplay[i];
+ var height = parseInt(this.getPageHeight(index)/this.thumbScale);
+
+ if(-1 == jQuery.inArray(indicesToDisplay[i], this.displayedIndices)) {
+ var width = parseInt(this.getPageWidth(index)/this.thumbScale);
+ //console.log("displaying leaf " + indicesToDisplay[i] + ' leafTop=' +leafTop);
+ var div = document.createElement("div");
+ div.className = 'GBpagediv1up';
+ div.id = 'pagediv'+index;
+ div.style.position = "absolute";
+ $(div).css('top', leafTop + 'px');
+ var left = (viewWidth-width)>>1;
+ if (left<0) left = 0;
+ $(div).css('left', left+'px');
+ $(div).css('width', width+'px');
+ $(div).css('height', height+'px');
+ //$(div).text('loading...');
+
+ // thumbnails are hyperlinked, do not need drag handler
+ //this.setDragHandler(div);
+
+ // link to page in single page mode
+ var link = document.createElement("a");
+ link.href = '#page/' + (this.getPageNum(index)) +'/mode/1up' ;
+ $(div).append(link);
+
+ $('#GBpageview').append(div);
+
+ var img = document.createElement("img");
+ img.src = this.getPageURI(index);
+ $(img).css('width', width+'px');
+ $(img).css('height', height+'px');
+ img.style.border = "0";
+ $(link).append(img);
+
+
+ } else {
+ //console.log("not displaying " + indicesToDisplay[i] + ' score=' + jQuery.inArray(indicesToDisplay[i], this.displayedIndices));
+ }
+
+ leafTop += height +10;
+
+ }
+
+ for (i=0; i<this.displayedIndices.length; i++) {
+ if (-1 == jQuery.inArray(this.displayedIndices[i], indicesToDisplay)) {
+ var index = this.displayedIndices[i];
+ //console.log('Removing leaf ' + index);
+ //console.log('id='+'#pagediv'+index+ ' top = ' +$('#pagediv'+index).css('top'));
+ $('#pagediv'+index).remove();
+ } else {
+ //console.log('NOT Removing leaf ' + this.displayedIndices[i]);
+ }
+ }
+
+ this.displayedIndices = indicesToDisplay.slice();
+ this.updateSearchHilites();
+
+ if (null != this.getPageNum(firstIndexToDraw)) {
+ $("#GBpagenum").val(this.getPageNum(this.currentIndex()));
+ } else {
+ $("#GBpagenum").val('');
+ }
+
+ this.updateToolbarZoom(this.reduce);
+
+}
+
// drawLeafsTwoPage()
//______________________________________________________________________________
GnuBook.prototype.drawLeafsTwoPage = function() {
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', // $$$ height forced the same for both pages
- width: scaledWR + 'px',
+ width: this.twoPage.scaledWR + 'px',
borderLeft: '1px solid black',
zIndex: 2
}).appendTo('#GBtwopageview');
this.displayedIndices = [this.twoPage.currentIndexL, this.twoPage.currentIndexR];
- this.setClickHandlers();
+ this.setMouseHandlers2UP();
+ this.twoPageSetCursor();
this.updatePageNumBox2UP();
this.updateToolbarZoom(this.reduce);
+
+ // this.twoPagePlaceFlipAreas(); // No longer used
+
}
// updatePageNumBox2UP
return this.zoom1up(direction);
case this.constMode2up:
return this.zoom2up(direction);
+ case this.constModeThumb:
+ return this.zoomThumb(direction);
}
}
this.updateToolbarZoom(this.reduce);
}
+// zoomThumb(dir)
+//______________________________________________________________________________
+GnuBook.prototype.zoomThumb = function(dir) {
+ if (3 == this.mode) { //can only zoom in 1-page mode
+ this.switchMode(1);
+ return;
+ }
+}
+
// resizePageView()
//______________________________________________________________________________
GnuBook.prototype.resizePageView = function() {
// Preserve view center position
var oldCenter = this.twoPageGetViewCenter();
+ // If zooming in, reload imgs. DOM elements will be removed by prepareTwoPageView
+ // $$$ 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);
+ // $$$ TODO preserve center of view when switching between mode
+ // See https://bugs.edge.launchpad.net/gnubook/+bug/416682
+
if (1 == mode) {
- this.reduce = this.twoPageQuantizeReduce(this.reduce);
+ this.reduce = this.quantizeReduce(this.reduce);
this.prepareOnePageView();
+ } else if (3 == mode) {
+ this.reduce = this.quantizeReduce(this.reduce);
+ this.prepareThumbnailView();
} else {
+ this.twoPage.autofit = false; // Take zoom level from other mode
+ this.reduce = this.quantizeReduce(this.reduce);
this.prepareTwoPageView();
- this.twoPageCenterView(0.5, 0.5);
+ this.twoPageCenterView(0.5, 0.5); // $$$ TODO preserve center
}
}
// Bind mouse handlers
// Disable mouse click to avoid selected/highlighted page images - bug 354239
gbPageView.bind('mousedown', function(e) {
+ // $$$ check here for right-click and don't disable. Also use jQuery style
+ // for stopping propagation. See https://bugs.edge.launchpad.net/gnubook/+bug/362626
+ return false;
+ })
+ // Special hack for IE7
+ gbPageView[0].onselectstart = function(e) { return false; };
+}
+
+//prepareThumbnailView()
+//______________________________________________________________________________
+GnuBook.prototype.prepareThumbnailView = function() {
+
+ // var startLeaf = this.displayedIndices[0];
+ var startLeaf = this.currentIndex();
+
+ $('#GBcontainer').empty();
+ $('#GBcontainer').css({
+ overflowY: 'scroll',
+ overflowX: 'auto'
+ });
+
+ var gbPageView = $("#GBcontainer").append("<div id='GBpageview'></div>");
+
+ this.resizePageView();
+
+ this.jumpToIndex(startLeaf);
+ this.displayedIndices = [];
+
+ this.drawLeafsThumbnail();
+
+ // Bind mouse handlers
+ // Disable mouse click to avoid selected/highlighted page images - bug 354239
+ gbPageView.bind('mousedown', function(e) {
+ // $$$ 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];
GnuBook.prototype.calculateSpreadSize = function() {
- // $$$ TODO Calculate the spread size based on the reduction factor. If we are using
- // fit mode we recalculate the reduction factor based on the current page sizes
- // and display size first.
-
var firstIndex = this.twoPage.currentIndexL;
var secondIndex = this.twoPage.currentIndexR;
//console.log('first page is ' + firstIndex);
this.twoPage.scaledWR = this.getPageWidth2UP(secondIndex);
// Leaf edges
+ this.twoPage.edgeWidth = spreadSize.totalLeafEdgeWidth; // The combined width of both edges
this.twoPage.leafEdgeWidthL = this.leafEdgeWidth(this.twoPage.currentIndexL);
this.twoPage.leafEdgeWidthR = this.twoPage.edgeWidth - this.twoPage.leafEdgeWidthL;
- this.twoPage.edgeWidth = spreadSize.totalLeafEdgeWidth; // The combined width of both edges
// Book cover
// We calculate the total width and height for the div so that we can make the book
// spine centered
var leftGutterOffset = this.gutterOffsetForIndex(firstIndex);
- var leftWidthFromCenter = this.twoPage.scaledWL + leftGutterOffset + this.twoPage.leafEdgeWidthL;
- var rightWidthFromCenter = this.twoPage.scaledWR - leftGutterOffset + this.twoPage.leafEdgeWidthR;
+ var leftWidthFromCenter = this.twoPage.scaledWL - leftGutterOffset + this.twoPage.leafEdgeWidthL;
+ var rightWidthFromCenter = this.twoPage.scaledWR + leftGutterOffset + this.twoPage.leafEdgeWidthR;
var largestWidthFromCenter = Math.max( leftWidthFromCenter, rightWidthFromCenter );
this.twoPage.totalWidth = 2 * (largestWidthFromCenter + this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding);
this.twoPage.totalHeight = this.twoPage.height + 2 * (this.twoPage.coverInternalPadding + this.twoPage.coverExternalPadding);
var maxLeafEdgeWidth = parseInt($('#GBcontainer').attr('clientWidth') * 0.1);
ideal.totalLeafEdgeWidth = Math.min(totalLeafEdgeWidth, maxLeafEdgeWidth);
- ideal.width = ($('#GBcontainer').attr('clientWidth') - 30 - ideal.totalLeafEdgeWidth)>>1;
- ideal.height = $('#GBcontainer').height() - 30; // $$$ 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; // $$$ fudge factor
+ ideal.height = $('#GBcontainer').height() - heightOutsidePages;
+ ideal.height -= 20; // fudge factor
//console.log('init idealWidth='+ideal.width+' idealHeight='+ideal.height + ' ratio='+ratio);
if (ideal.height/ratio <= ideal.width) {
return spreadSize.reduce;
}
+// twoPageSetCursor()
+//______________________________________________________________________________
+// Set the cursor for two page view
+GnuBook.prototype.twoPageSetCursor = function() {
+ // console.log('setting cursor');
+ if ( ($('#GBtwopageview').width() > $('#GBcontainer').attr('clientWidth')) ||
+ ($('#GBtwopageview').height() > $('#GBcontainer').attr('clientHeight')) ) {
+ $(this.prefetchedImgs[this.twoPage.currentIndexL]).css('cursor','move');
+ $(this.prefetchedImgs[this.twoPage.currentIndexR]).css('cursor','move');
+ } else {
+ $(this.prefetchedImgs[this.twoPage.currentIndexL]).css('cursor','');
+ $(this.prefetchedImgs[this.twoPage.currentIndexR]).css('cursor','');
+ }
+}
+
// currentIndex()
//______________________________________________________________________________
// Returns the currently active index.
GnuBook.prototype.currentIndex = function() {
// $$$ we should be cleaner with our idea of which index is active in 1up/2up
- if (this.mode == this.constMode1up || this.mode == this.constMode2up) {
+ if (this.mode == this.constMode1up || this.mode == this.constMode2up || this.mode == this.constModeThumb) {
return this.firstIndex;
} else {
throw 'currentIndex called for unimplemented mode ' + this.mode;
$(self.leafEdgeTmp).remove();
self.leafEdgeTmp = null;
+
+ // $$$ TODO refactor with opposite direction flip
self.twoPage.currentIndexL = newIndexL;
self.twoPage.currentIndexR = newIndexR;
+ self.twoPage.scaledWL = newWidthL;
+ self.twoPage.scaledWR = newWidthR;
+ self.twoPage.gutter = gutter;
+
self.firstIndex = self.twoPage.currentIndexL;
self.displayedIndices = [newIndexL, newIndexR];
- self.setClickHandlers();
self.pruneUnusedImgs();
self.prefetch();
self.animating = false;
self.updateSearchHilites2UP();
self.updatePageNumBox2UP();
+ // self.twoPagePlaceFlipAreas(); // No longer used
+ self.setMouseHandlers2UP();
+ self.twoPageSetCursor();
+
if (self.animationFinishedCallback) {
self.animationFinishedCallback();
self.animationFinishedCallback = null;
self.twoPage.currentIndexL = newIndexL;
self.twoPage.currentIndexR = newIndexR;
+ self.twoPage.scaledWL = newWidthL;
+ self.twoPage.scaledWR = newWidthR;
+ self.twoPage.gutter = gutter;
+
self.firstIndex = self.twoPage.currentIndexL;
self.displayedIndices = [newIndexL, newIndexR];
- self.setClickHandlers();
self.pruneUnusedImgs();
self.prefetch();
self.animating = false;
self.updateSearchHilites2UP();
self.updatePageNumBox2UP();
+ // self.twoPagePlaceFlipAreas(); // No longer used
+ self.setMouseHandlers2UP();
+ self.twoPageSetCursor();
+
if (self.animationFinishedCallback) {
self.animationFinishedCallback();
self.animationFinishedCallback = null;
});
}
-// setClickHandlers
+// setMouseHandlers2UP
//______________________________________________________________________________
-GnuBook.prototype.setClickHandlers = function() {
- var self = this;
- // $$$ 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;
}
}
//______________________________________________________________________________
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()
$('#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()
//______________________________________________________________________________
+ "<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>"
+ + " <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;'/>"
+ + " <button class='GBicon rollover thumbnail_mode' onclick='gb.switchMode(3); return false;'/>"
+ " <a class='GBblack title' href='"+this.bookUrl+"' target='_blank'>"+this.shortTitle(50)+"</a>"
+ "</span></div>");
+
+ this.updateToolbarZoom(this.reduce); // Pretty format
if (ui == "embed") {
$("#GnuBook a.logo").attr("target","_blank");
'.zoom_out': 'Zoom out',
'.one_page_mode': 'One-page view',
'.two_page_mode': 'Two-page view',
+ '.thumbnail_mode': 'Thumbnail view',
'.embed': 'Embed bookreader',
'.book_left': 'Flip left',
'.book_right': 'Flip right',
//______________________________________________________________________________
// 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
params.mode = this.constMode1up;
} else if ('2up' == urlHash['mode']) {
params.mode = this.constMode2up;
+ } else if ('Thumb' == urlHash['mode']) {
+ params.mode = this.constModeThumb;
}
// Index and page
fragments.push('mode', '1up');
} else if (params.mode == this.constMode2up) {
fragments.push('mode', '2up');
+ } else if (params.mode == this.constModeThumb) {
+ fragments.push('mode', 'thumb');
} else {
throw 'fragmentFromParams called with unknown mode ' + params.mode;
}
projects / bookreader.git / blobdiff