X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/1ff260641b29888f28d24acb58195ea231207494..6c78d4b8976e413f788ab3db1dc899608b70c7f3:/apps/wolnelektury_core/static/js/picture.js diff --git a/apps/wolnelektury_core/static/js/picture.js b/apps/wolnelektury_core/static/js/picture.js index 052392a32..0c2e35b84 100644 --- a/apps/wolnelektury_core/static/js/picture.js +++ b/apps/wolnelektury_core/static/js/picture.js @@ -1,247 +1,251 @@ (function($) { - $.widget('wl.pictureviewer', { - - options: { - steps: 6, // steps of zoom - max: -1, // max zoom in percent - plus_button: undefined, - minus_button: undefined, - height: 500, // height to scale to initially - }, - - - _create: function() { - var self = this; - /* Calibrate */ - self._zoom = 0; - - // the initial thumbnailed picture - - - var img = self.element.find('img.initial').get(0); - - self.initial_size = [ - img.naturalWidth, - img.naturalHeight - ]; - - self.element.width(self.initial_size[0]); - self.element.height(self.initial_size[1]); - - self.initial_position = self.element.offset(); - - var original = self.element.find('img.original').get(0); - self._original = false; - self.original_loeaded = undefined; // callback - self._original_loaded = false; - - self.spinner = $("#spinner").progressSpin(); - - $(original).load(function() { - console.log("loaded original"); - self._original_loaded = true; - self.spinner.stop(); - var cb = self.original_loaded; - self.original_loaded = undefined; - if (cb) - cb() - }); - - if (self.options.max <= 0) { - self.options.max = original.naturalWidth - * 100 / self.initial_size[0]; - } - - self.element.css({ - 'margin': 0, - }); - - self.element.offset(self.initial_position); - // self.element.draggable({containment:"parent"}); - - if (self.options.plus_button) - self.options.plus_button.click( - function(ev) { self.zoom(1); }); - if (self.options.minus_button) - self.options.minus_button.click( - function(ev) { self.zoom(-1); }); - - self.options.areas_links.hover(function() { - $this = $(this); - var coords = $this.data("coords"); - this._picture_mark = self.createMark({ - label: $this.text(), - coords: coords, - }); - }, function() { - $(this._picture_mark).remove(); - this._picture_mark = undefined; - }); - return self; - }, - - natural_size: function() { - var img = this.element.find('img.original').get(0); - return [ img.naturalWidth, img.naturalHeight ] - }, - - currentZoom: function() { return this._zoom; }, - - initOriginal: function() { - var self = this; - function subst_original() { - self.element.find("img.initial").remove(); - self.element.find("img.loading").removeClass("loading"); - self._original = true; - } - if (!this._original) { - if (this._original_loaded) { - return subst_original(); - } else { - self.original_loaded = subst_original; - self.spinner.start(); - } - } - - }, - - zoom: function(steps) { - this.initOriginal(); - var t = this._zoom + steps; - return this.zoomTo(t); - }, - - zoomForStep: function(step) { - // 0 => initial - // max_step-1 => max % - return 100 + (this.options.max - 100) / this.options.steps * step - }, - - zoomTo: function(level) { - if (level < 0 || level > this.options.steps) - return; - var ratio = this.zoomForStep(level) / 100; - var new_width = ratio * this.initial_size[0]; - var new_height = ratio * this.initial_size[1]; - var target = { - 'width': new_width, - 'left': Math.max(0, - this.initial_position.left - - (new_width - this.initial_size[0])/2), - 'top': Math.max(0, - this.initial_position.top - - (new_height - this.initial_size[1])/2), - }; - - this._zoom = level; - - this.element.css(target); - - -// this.element.animate(target, 1200); // default duration=400 - }, - - allowedPosition: function(off) { - var x = undefined, fix_x = undefined; - var y = undefined, fix_y = undefined; - var w = this.element.width(); - var h = this.element.height(); - var cw = $(window).width(); - var ch = $(window).height(); - var off = off || this.element.offset(); - - if (w <= cw) { - var x = off.left; - if (x < 0) - fix_x = 0; - if (x + w > cw) - fix_x = cw - w; - } else { - if (x > 0) - fix_x = 0; - if (x + w < cw) - fix_x = cw - w; - } - - if (h <= ch) { - var y = off.top; - if (y < 0) - fix_y = 0; - if (y + h > ch) - fix_y = ch - h; - } else { - if (y > 0) - fix_y = 0; - if (y + h < ch) - fix_y = ch - h; - } - if (fix_x !== undefined || fix_y !== undefined) - return { top: fix_y, left: fix_x }; - return undefined; - - }, - - // mark - // { - // label: "...", - // coords: [x, y, w, h] - // } - createMark: function(mark) { - var $mark = $('
' + - mark.label + '
'); - var ratio = this.zoomForStep(this.currentZoom()) * - this.initial_size[0] / (100 * this.natural_size()[0]); - var scale = function (v) { - return v * ratio; - } - if (mark.coords[1][0] < 0 || mark.coords[1][1] < 0) { // whole - var s = self.natural_size(); - if (mark.coords[1][0] < 0) mark.coords[1][0] = s[0]; - if (mark.coords[1][1] < 0) mark.coords[1][1] = s[1]; - } - - var coords = [[scale(mark.coords[0][0]), scale(mark.coords[0][1])], - [scale(mark.coords[1][0]), scale(mark.coords[1][1])]]; - this.element.append($mark); - $mark.width(coords[1][0] - coords[0][0]); - $mark.height(coords[1][1] - coords[0][1]); - $mark.css({left: coords[0][0], top: coords[0][1]}); - return $mark.get(0); - }, - }); -}(jQuery)); - - -$(document).ready(function(){ - $(".picture-wrap").pictureviewer({ - plus_button: $(".toolbar .button.plus"), - minus_button: $(".toolbar .button.minus"), - areas_links: $("#picture-objects a, #picture-themes a"), - }); - - $.highlightFade.defaults.speed = 3000; - - $('.toolbar a.dropdown').each(function() { - $t = $(this); - $($t.attr('href')).hide().insertAfter(this); - }); - - function closeDD() { - $(this).removeClass('selected'); - $($(this).attr('href')).slideUp('fast'); - - } - $('.toolbar a.dropdown').click(function() { - if ($(this).hasClass('selected')) { - closeDD.call(this); - } else { - $(this).addClass('selected'); - $($(this).attr('href')).slideDown('fast'); - $(this).parent().siblings(".button:has(.dropdown)").children(".dropdown").each(closeDD); + $.widget('wl.pictureviewer', { + + options: { + step: 20, // step in % of initial image + plus_button: undefined, + minus_button: undefined, + }, + ORIGINAL_LOADING: 0, + ORIGINAL_AVAILABLE: 1, + ORIGINAL_SHOWN: 2, + + _create: function() { + var self = this; + self.initial_size = [ + self.element.data('width'), + self.element.data('height') + ]; + self.original_size = [ + self.element.data('original-width'), + self.element.data('original-height') + ]; + self._zoom = 0; + self._ratio = 1.0; + + self.original = $(''); + + self._original_avaialble = self.ORIGINAL_LOADING; + function original_loaded() { + self._original_avaialble = self.ORIGINAL_AVAILABLE; + self.options.plus_button.removeClass('inactive'); + self.options.minus_button.removeClass('inactive'); + console.log("Original image available, sizes initial: " + self.initial_size + ", original: " + self.original_size); + }; + self.original.load(original_loaded); + + self.element.width(self.initial_size[0]); + self.element.height(self.initial_size[1]); + + if (self.options.plus_button) + self.options.plus_button.click( + function(ev) { self.zoom(1); }); + if (self.options.minus_button) + self.options.minus_button.click( + function(ev) { self.zoom(-1); }); + + self._initial_mark = null; + function clean_initial_mark() { + if (self._initial_mark) { + self._initial_mark.remove(); + self._initial_mark = null; } - }); - + } + var initial_hash = window.location.hash; + if (initial_hash) { + var mk = null; + if (initial_hash.startsWith('#object-')) { + $("[href=#picture-objects]").trigger('click'); + } else if (initial_hash.startsWith('#theme-')) { + $("[href=#picutre-themes]").trigger('click'); + } + mk = $("[href=" + initial_hash + "]").eq(0); + self._initial_mark = self.createMark({ + label: mk.text(), + coords: mk.data('coords') + }); + } + + + self.options.areas_links.hover(function() { + clean_initial_mark(); + $this = $(this); + var coords = $this.data("coords"); + this._picture_mark = self.createMark({ +// label: $this.text(), + coords: coords, + }); + }, function() { + $(this._picture_mark).remove(); + this._picture_mark = undefined; + }).click(function(ev) { + ev.preventDefault(); + var $mark = self.element.find('.mark').eq(0); + var markPos = $mark.offset(); + markPos = [markPos.left, markPos.top]; + var markSize = [ $mark.width(), $mark.height() ] + var wSize = [ window.innerWidth, window.innerHeight ]; + window.scrollTo( + markPos[0] + markSize[0]/2 - wSize[0]/2, + markPos[1] + markSize[1]/2 - wSize[1]/2 + ); + + }); + + + + return self; + }, + + currentSize: function() { + return [this.element.width(), this.element.height() ]; + }, + + currentZoom: function() { return this._zoom; }, + + initOriginal: function() { + if (this._original_avaialble > this.ORIGINAL_LOADING && + this._original_avaialble < this.ORIGINAL_SHOWN) { + this.element.css({'background-image': 'url('+ this.original.attr('src')+')', 'background-size': this.initial_size[0]+'px'}); + this._original_avaialble = this.ORIGINAL_SHOWN; + }; + }, + + zoom: function(steps) { + this.initOriginal(); + var t = this._zoom + steps; + return this.zoomTo(t); + }, + + zoomForStep: function(step) { + // 0 => initial + // max_step-1 => max % + if (step < 0) step = 0; + var zoomperc = 100 + step * this.options.step; + if (zoomperc * this.initial_size[0] > this.original_size[0] * 100) { + zoomperc = this.original_size[0] * 100 / this.initial_size[0]; + }; + return zoomperc; + }, + + zoomTo: function(level) { + var ratio = this.zoomForStep(level) / 100; + var new_width = ratio * this.initial_size[0]; + var new_height = ratio * this.initial_size[1]; + var cs = this.currentSize(); + if (new_width == cs[0]) + return; + + var target = { + 'width': new_width + 'px', + 'height': new_height + 'px', + 'background-size': new_width + 'px', + }; + + this._zoom = level; + this._ratio = ratio; + + this.element.css(target); + if (this._initial_mark) { + this._initial_mark = this.redrawMark(this._initial_mark); + } + + }, + + allowedPosition: function(off) { + var x = undefined, fix_x = undefined; + var y = undefined, fix_y = undefined; + var w = this.element.width(); + var h = this.element.height(); + var cw = $(window).width(); + var ch = $(window).height(); + var off = off || this.element.offset(); + + if (w <= cw) { + var x = off.left; + if (x < 0) + fix_x = 0; + if (x + w > cw) + fix_x = cw - w; + } else { + if (x > 0) + fix_x = 0; + if (x + w < cw) + fix_x = cw - w; + } + + if (h <= ch) { + var y = off.top; + if (y < 0) + fix_y = 0; + if (y + h > ch) + fix_y = ch - h; + } else { + if (y > 0) + fix_y = 0; + if (y + h < ch) + fix_y = ch - h; + } + if (fix_x !== undefined || fix_y !== undefined) + return { top: fix_y, left: fix_x }; + return undefined; + + }, + redrawMark: function(mark) { + var $mark = $(mark); + var $newmark = this.createMark($mark.data('mark')); + $mark.remove(); + return $newmark; + }, + // mark + // { + // label: "...", + // coords: [x, y, w, h] + // } + createMark: function(mark) { + if (mark.label === undefined) + mark.label = ''; + var $mark = $('
' + + mark.label + '
'); + var cs = this.currentSize() + var ratio = cs[0] / this.original_size[0]; + var scale = function (v) { + return v * ratio; + } + if (mark.coords[1][0] < 0 || mark.coords[1][1] < 0) { // whole + var s = this.original_size; + if (mark.coords[1][0] < 0) mark.coords[1][0] = s[0]; + if (mark.coords[1][1] < 0) mark.coords[1][1] = s[1]; + } + + var coords = [[scale(mark.coords[0][0]), scale(mark.coords[0][1])], + [scale(mark.coords[1][0]), scale(mark.coords[1][1])]]; + this.element.append($mark); + $mark.width(coords[1][0] - coords[0][0]); + $mark.height(coords[1][1] - coords[0][1]); + $mark.css({left: coords[0][0], top: coords[0][1]}); + + $mark.data('mark', mark); + return $mark.get(0); + }, + }); + + +$(document).ready(function() { + $.highlightFade.defaults.speed = 3000; + + $('#menu .dropdown').each(function() { + $t = $(this); + $($t.attr('href')).hide().insertAfter(this); + }); + + $(".picture-wrap").pictureviewer({ + plus_button: $(".button.plus"), + minus_button: $(".button.minus"), + areas_links: $("#picture-objects a, #picture-themes a"), + }); }); +}(jQuery));