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43 lines
970 B
JavaScript
43 lines
970 B
JavaScript
FP.Hooks.register("beforeChapterDisplay").smartimages = function(callback, chapter){
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var image = chapter.doc.querySelectorAll('img'),
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items = Array.prototype.slice.call(image),
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iheight = chapter.iframe.height,
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oheight;
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items.forEach(function(item){
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function size() {
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var itemRect = item.getBoundingClientRect(),
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height = itemRect.height,
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top = itemRect.top;
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iheight = chapter.iframe.height;
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if(height + top >= iheight) {
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if(top < iheight/2) {
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item.style.maxHeight = iheight - top + "px";
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}else{
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item.style.maxHeight = (height < iheight ? height : iheight) + "px";
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item.style.marginTop = iheight - top + "px";
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}
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}else{
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item.style.removeProperty('max-height');
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item.style.removeProperty('margin-top');
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}
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}
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chapter.book.listenUntil("book:resized", "book:chapterDestroy", size);
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size();
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});
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if(callback) callback();
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}
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